MODULAR DISPLAY UNIT

A modular display unit that may be assembled without tools and without attachment hardware includes two or more shelves having spaced-apart elongate apertures, and two or more pairs of upright members. Each of the pairs of upright members extend through two or more of the elongate apertures. The upright members may include notches or other features that are configured to engage the associated shelf. One or more wedges extend through the elongate apertures between each of the pairs of upright members, and urge the upright members against the shelf. Optionally, one or more dowels slidably engage apertures in the shelves to provide a back support for display items. The shelves may optionally include a longitudinal groove along an upper surface to support display items such as compact and/or digital video disk cases. 1. A modular display unit comprising:a plurality of upright supports;a plurality of shelves, each shelf having a plurality of apertures, each aperture having an associated one of the plurality of upright supports disposed therethrough, and each aperture having a first end a second end;a plurality of wedges, each wedge disposed in one of the plurality of shelf apertures and associated with one of the upright supports, wherein each wedge is operable to bias the associated upright support against the plurality of shelves.2. The modular display unit of claim 1 , wherein each of the plurality of upright supports comprises a pair of spaced-apart claim 1 , upright members.3. The modular display unit of claim 1 , wherein the plurality of upright supports each define a wedge-shaped protrusion that is positioned to extend into one of the plurality of shelf apertures when the modular display unit is assembled.4. The modular display unit of claim 1 , further comprising a second plurality of wedges claim 1 , each of the second plurality of wedges being paired with one of the first plurality of wedges claim 1 , and wherein the plurality of pairs of wedges cooperatively ...

Boat Steering Latch

A latch for a motor boat steering stick. Also, a motor boat including a stick steering system and latch. The latch includes a base portion directly attached to or continuous with the boat hall and a movable portion winch is selectively positionable so as to engage with the steering stick when needed and to disengage when not needed. 1. A latch far use with a stick steering system tor a boat , said latch comprising:a base portion fixedly attachable to said boat,a movable portion attached to said base portion,said movable portion being movable relative to said base portion and selectively positionable in at least an engagement position and a disengagement position, andsaid movable portion comprising a fork for engaging the steering stick when the movable portion is in said engagement position.2. The latch of claim 1 , wherein said movable portion is attached to said base portion by a hinge such that the movable portion is rotatably movable between said engagement position and said disengagement position.3. A stick steering system for a boat with a motor claim 1 , said system comprising:a steering stick,a cable for connecting said steering stick and the motor, such that when said steering stick moves in a direction parallel to a length the boat, the boat motor moves correspondingly in a direction parallel to the beam of the boat; a base portion fixedly attachable to said boat,', 'a movable portion attached to said base portion,', 'said movable portion being movable relative to said base portion and selectively positionable in at least an engagement position and a disengagement position,', 'said movable portion comprising a fork which engages said steering slick when said movable portion is in said engagement position,, 'a latch comprisingwherein said steering stick is prevented, from moving In said direction parallel to a length of the boat when engaged by said fork.4. The system of claim 3 , wherein said movable portion is attached to said base portion by a hinge such ...

Escrow key fragmentation system

A method of managing access to a key. The method comprises associating the key with an encrypted data object, the key being required to decrypt the data object; generating a number of fragments of the key, the number of fragments corresponding to a number of parties subject to a fragmentation agreement; and encrypting each fragment with a public key corresponding to each of the parties. The method further comprises encrypting each encrypted fragment with a public key of a trusted party; and storing the encrypted fragments with the encrypted data object on a server of the trusted party. 1. A method of managing access to a key comprising:associating the key with an encrypted data object, the key being required to decrypt the data object;generating a number of fragments of the key, with the number of fragments corresponding to a number of parties subject to a fragmentation agreement;encrypting each fragment with a public key corresponding to each of the parties;encrypting each encrypted fragment with a public key of a trusted party; andstoring the encrypted fragments with the encrypted data object on a server of the trusted party.2. The method according to claim 1 , further comprising:the server receiving an instruction to reassemble the fragmented key;the server identifying the number of encrypted fragments of the key, the number of encrypted fragments corresponding to the number of parties;the server transmitting each identified encrypted fragment to a trusted party, the fragments being decrypted with the corresponding private key;the trusted party transmitting each encrypted fragment to a corresponding one of the parties, each party decrypting the corresponding encrypted fragment with a corresponding private key associated with the party, and sending the decrypted fragments to the trusted party;the trusted party receiving the decrypted fragments; andreassembling the key using the decrypted fragments. This application claims the benefit under 35 U.S.C. §119 of the ...

System and interface supporting safe sharing of content on social media services

A framework for sharing protected content includes a safe service comprising an access service and a content service; and a safe access service application integrated with at least one social media service application, said safe access service application constructed and adapted to provide controlled access to protected content stored in the content service, said controlled access being via a user interface (UI) of the at least one social media service application.

Printing machine

Improvements to sextants

Injection molding controller with process variable learning

Abstract of the Disclosure A controller for an injection molding machine controls the injection ram by means of profiles having segments with programmable setpoints. The injection molding machine is initially controlled during each segment in an open-loop manner. Closed-loop control is then adopted. The difference between the process signal, e.g. ram velocity, and the setpoint at the end of each segment is used to change the current setpoint to improve the open-loop accuracy over time. The learning rate of change of the open-loop setpoints decreases after the initial correction.

Paper-jogging apparatus

Chain conveyor device for printing plates in printing machines

CONTROLLER FOR INJECTION MOLDING MACHINE

Sheet placement and alignment device for printing presses

Rangefinder

Optical instrument.

Fire-control apparatus.

Attachment for varying the magnifying power of telescopes

Topographical stereoscope

Printing machine

Book bindery system

Injection molding controller with controlled variable learning

A controller for an injection molding machine controls the injection ram by means of profiles having segments with programmable setpoints. The injection molding machine is initially controlled during each segment in an open-loop manner. Closed-loop control is then adopted. The difference between the open-loop and the closed-loop output to the injection molding machines valves is used to change the setpoints with each cycle to improve the open-loop accuracy over time. The learning rate of change of the open-loop setpoints decreases after the initial correction. During the open loop control, the closed loop control is deactivated to prevent it from being affected by the previous open loop error.

Method for determining discrete fracture networks from passive seismic signals and its application to subsurface reservoir simulation

A method for mapping a fracture network that includes determining a source of at least one seismic event from features in recorded seismic signals exceeding a selected amplitude ("visible seismic event"). The signals are generated by a plurality of seismic receivers disposed proximate a volume of subsurface to be evaluated. The signals are electrical or optical and represent seismic amplitude. A source mechanism of the at least one visible seismic event is determined. A fracture size and orientation are determined from the source mechanism. Seismic events are determined from the signals from features less than the selected amplitude ("invisible seismic events") using a stacking procedure. A source mechanism for the invisible seismic events is determined by matched filtering. At least one fracture is defined from the invisible seismic events. A fracture network model is generated by combining the fracture determined from the visible seismic event with the fracture determined from the invisible seismic events.

Improvements in or connected with Apparatus for the Conversion of Motion according to One Law into Motion according to Another Law.

618. Mouton, W. A., Barr, A., and Stroud, W. Jan. 9. Modifying scale of readings.-Relates to transmission gearing for the conversion of motion according to one law into motion according to another law, and is especially applicable to sighting-devices for ordnance. It consists in an arrangement of two or more flat spiral racks, and pinions engaging therewith, whereby the range dial is rotated in accordance with one law, and the sights are adjusted in accordance with another law. If the range scale is constructed in the manner described in Specification 5182/12, [Class 106 (i), Calculating &c.], a " muzzle-velocity " correction can be introduced by a preliminary adjustment of one of the racks. Several constructions are described. In that shown in Figs. 2 and 3, two coaxially-mounted disks 1, 2 have spiral racks 3, 4 on their faces, with which gear flanged pinions 5, 6 on the driving and driven shafts 7, 8 respectively. The shaft 7 may be the spindle of a uniformly graduated range dial, and the shaft 8 that of the sightelevating gear. If the range dial is graduated in the manner described in the Specification referred to above, the muzzle-velocity correction is made by rotating one disk an appropriate amount relatively to the other disk, after which the two disks are locked together. Since one pinion is at the periphery of its disk when the other is near the centre, the resistance to rotation of the transmission may be considerable. To overcome this, a differential gear is introduced between the two shafts 7, 8 or between one shaft and the disks. An example of the former arrangement is shown in Fig. 4, the two racks 3, 4 being formed in this construction on the opposite faces of a single disk. The wheel 12 of the differential gear is fixed on the shaft 7, and the wheel 14 is loose thereon, being geared to the shaft 8 by spur gearing 15, 16. Alternatively, the shaft of the driving-pinion may be connected to the disk by a friction drive.

Fire control device

Improvements in Indicators for use in Signalling

Improvements in Sextants.

1012. Barr, A., and Stroud, W. Jan. 14. Sextants.-An optical attachment is provided capable, of bringing into optical juxtaposition views of two or more parts of the horizon, thus indicating when the plane of the sextant is vertical. A prism 4, the edge of which has been adjusted parallel to the plane of the sextant 1, is placed near the horizon glass 3 so that the observer can see a part of the horizon directly and another part of the horizon through the prism. When the sextant is vertical, the two parts 6, 7, Fig. 4, of the horizon will appear in the straight line. Instead of one direct and one refracted view of the horizon, two refracted views are obtained by using a biprism : or by cutting off the edge of a biprism two refracted views and a direct view are obtained ; or a reflected view may be obtained by using a doublyreflecting prism. In other modifications, a pair of doubly reflecting prisms are used either in juxtaposition or spaced so as to give two reflected views and a central direct view. In another form, a singly-reflecting prism is used with its reflecting- face placed at an inclination to the plane of the sextant.

Tubuseinrichtung an Entfernungsmessern.

Electrical apparatus for transmitting and receiving signals.

Range finder and height finder

Improvements in Rangefinders.

30,152. Barr, A., and Stroud, W. Dec. 24. Range-finders. - Comprises improvements in range-finders of the coincidence type whereby two lines of separation so adjacent to one another that both lines fall within the angle of distinct simultaneous vision are produced in the field of view. Two arrangements are described, being examples of reflective and refractive methods. A reflective method is shown in Fig. 3, in which a separating-prism is used, reflection taking place from the silvered surface M N. A narrow strip Q is cut in the silvered surface M N, permitting a ray G<6> from one object to pass through after reflection at the surface P<2>. The rays C<5>, C<6> from the other objective are reflected from the surface M N into the eyepiece, giving an appearance to the image as shown in Fig. 3<A>, in which A<1>, A<2> show the field formed by the beams through one objective and B', B<2> the field formed by the beams through the other objective. The modification in which the refractive method is employed comprises a refracting-prism formed by the edge of a very thin plate of glass having a refractive index different from that of the adjacent parts of the prism. Specifications 3172/01 and 9906/08 are referred to.

Sextant.

Improvements in Sighting Apparatus for Ordnance.

5182. Barr, A., and Stroud, W. March 1. Computing-scales for gannery calculations.- Relates to means for introducing corrections for muzzle velocity and various " errors of day " into the range-setting gearing, and consists principally in the calibration of the range-scale in such manner that the same scale serves for all muzzle-velocity variations of the gun, the correction for muzzle-velocity being made by a definite displacement of the range scale pointer from its position for normal muzzle-velocity, which displacement remains constant at all ranges. Temperature, tenuity, wind, and rateof-change-of-range corrections are made by further relative displacements of the range-scale and pointer. The correcting-gear for such corrections, for example, rate of change of range, as are dependent upon the range, is connected with the sight-elevating gear so that the correction is progressively applied. Two or more corrections may be added by differential gearing in known manner. The range-scale may be replaced by a cam-groove or spiral rib on a drum, which drum may be rotated step-by-step from a distant fire-control station. An index is moved by the cam relatively to a spiral line on a second drum driven by the sight-elevating gear. The sight is correctly elevated when coincidence between the index and line is established in the manner described in Specification 13,306/07, [Class 92, Ordnance &c.]. In this construction, the corrections are divided between the two drums, gearing being provided for effecting axial displacements of both drums. In the construction shown in Fig. 3, a spiral-rib cam 9 is formed on a drum 2 connected to the sight-elevating gear, and moves an index 4 over a range-scale R calibrated in the manner set forth above, when the drum is rotated, by hand or by a step-by-step receiver controlled from a distant transmitter, to set the sights. The corrections are made by a relative displacement between the drum and scale.

Apparatus for the control of gun-fire.

Magnetic lock

Apparatus for producing high vacua

Improvements in Single Observer Rangefinders.

9906. Barr, A., and Stroud, W. May 7. Range - finders ; prisms. - To prevent the deposition of dust &c. on or near the operative edge of a separating-prism for use in coincidence range-finders &c., the surfaces forming the edge are situated in the interior of a glass or like block. Fig. 1 shows one form in which two prisms A, B of different refractive indices have surfaces A<1>, B<1> in the same plane forming the separating-edge E, a third prism C being cemented on to protect the said surfaces and edge. The refractive index of the glass forming the prism B may differ from that of the other two, may be the same as that of the prism C or less than that of the prism A, or it may be greater than that of the prism A. The separating block or prism may be combined with known eyepiece prisms which collineate rays coming from different directions, and one or both surfaces of the block facing the separating-edge may be formed as lens surfaces. Specifications No. 13,507, A.D. 1893, and No. 1462, A.D. 1903, are referred to in the Provisional Specification.

Valve-tool.

Improvements in Apparatus for the Production of High Vacua.

Apparater til Afsendelse of Modtagelse af Signaler.

Indicating or estimating mechanism for ordnance.

An Instrument for use in connection with Fire Control for the Prediction of Ranges, Bearings, Allowance for Deflection, and the like.

15,480. Barr, A., and Stroud, W. June 28. Range-finders.-Apparatus for indicating the average rate of change of a variable (such as the range or bearing of a target), or for predicting the probable value of the variable at a subsequent time, comprises a drum revolving at a definite rate (or equivalent moving surface) to represent the element of time and a mechanism to produce relative translational motion parallel to the axis of the drum between the drum and a piece carrying a pencil, trailer, or other indicator, such motion being in accordance with the changing value of the variable. In the form where a pencil traces a mark upon the drum, means for measuring the deviation of the trail, which is a measure of the rate of change of the variable, may comprise an arm pivoted upon a centre so that it can be set with half of the undulating trace on the drum on one side and half on the other, or the general direction may be ascertained by a mirror capable of being rotated until the reflection appears to have the same direction as the trace itself. The adjustable rod or mirror is geared to a suitable pointer or indicator. In another form, shown in Fig. 7, the nut N is traversed along the screw S, set parallel to the axis of the rotating drum A, in accordance with the range, and has pivoted to it an arm carrying a roller or trailer pressed upon the drum A. The deviation of the arm corresponding to the rate of change of range &c. may be indicated by actuating a follower M so as to keep an index mark opposite the end of the arm, the follower M being mounted on screws S<1>, S<2>, which can be actuated either by hand or automatically, and have geared to them an indicator R. In the form shown, the follower M is moved automatically by means of two electro-magnets energized by completion of the appropriate circuit according as the trailer arm end carrying contacts K<1>, K<2> moves in advance of or to the rear of the follower M, the electromagnet actuated ...

Improvements in Apparatus for the Control of Gun Fire.

27,217. Barr, A., and Stroud, W. Nov. 26. Modifying scale of readings. - In a rangefinding instrument, range is estimated by the amount of movement required to annul the translation of an indicator when this is moved by the operation of the working-head of the range-finder. As shown, the movement of the working - head tends to translate a pointer 8 across a paper strip 10 marked with a reference line 11, motion being transmitted through suitable means to a differential gear 1, 2, 3, shaft 4, and drum 5 carrying a helix of quick pitch engaging a pin 6 on the carrier 7 of the pointer. This movement is annulled by a backward rotation imparted to the member 3 by the mechanism shown. Rotation of a wheel 20 sets a wheel 13 radially in or out over the surface of a driven disk 12, the variable rotation of this wheel being transmitted to a drum 37 of the kind described in Specification 29,870/12, driving a screw 39 by means of gearing 40, 41 and carrying spaced teeth 38 intermittently engaging a pinion 43 carried on an arm 42 traversed along the screw 39. The shaft 44 of this pinion carries a spurwheel 45 driving the wheel 46 connected to the member 3. The drum 37 is connected to counterwheels 48. The wheel 13 is so adjusted that the indications are always given on or near the line 11, and the amount of adjustment gives a measure of the rate of change of range. The position of the drum 37 or of the carrier 42 or the indicator 48 gives a measure of the range. A hand-wheel 47, operating one of the members of the differential gear 31, 32, 33 introduced between the wheel 13 and the drum 37, permits adjustment to the reference line 11. When the readings are equally spaced on either side of the reference line, an average reading can be arrived at. More than one range-finder can be arranged to record on the same sheet, an indication, in any case, being given when the shaft carrying the pointer is depressed at the will of the operator. Specification 11,772/11 also is referred to.

Improvements in Rangefinders or Telemeters.

Mounting for the support of instruments on board ship

Improvements in Single-observer Rangefinders.

10,039. Barr, A., and Stroud, W. April 30. Range-finders.-Relates to improvements in angle-measuring devices in range-finders of the coincidence type described in Specification. No. 9520, A.D. 1888, and consists in specially fitting two refracting prisms rotatable about an axis perpendicular to their planes, and also, when necessary for varying the range of the instrument, non-adjustable prisms which may be inserted into, or taken from, the optical axes at will. As shown in Fig. 1, which represents one half of a symmetrically arranged instrument, E' is one of the rotating prisms, A<1> is one end reflector, B<1> an objective, C the eyepiece reflecting prism, and D the eyepiece. The prisms E' are mounted near the end reflectors, and are operated simultaneously by a shaft, turned by a milled head near the eyepiece. Fig. 2 shows the prism E' operated from the shaft M. The prism is mounted in a frame which forms a wormwheel K<1> operated by a worm L<1> on the shaft. A scale graduated to give ranges directly, depending upon the angular rotation of the prism, may be mounted on the worm-wheel K<1> and read directly through an eyepiece at about 2¢ inches from the eyepiece D, a number of reflectors reflecting the rays from the scale to the eyepiece. Or the scale S may be mounted on a frame R, Fig. 4, turned by a worm - wheel W near the second eyepiece D<1>. The scale may be illuminated by a window T. For adapting the instrument for different ranges refracting prisms P', Fig. 41, operated by rods g<1>, g<2> and slides h<1>, h' may be inserted in the optical axes. In this case the scale-drum shown in Fig. 4 must be provided with four scales, as shown in Fig. 15, the scale S<4> for use when the rotating prisms only are employed, S' or S' when either the prisms P<1> is inserted alone, and S' when both prisms P' are inserted together. The index Y is adjusted by levers K, K', K ...

Dispositif de séparation pour instruments d'optique, et notamment pour télémètres

Improvements in Range Finders.

A Depression Range and Position Finder for use upon Aeroplanes, Dirigibles, or the like.

29,669. Barr, A., and Stroud, W. Dec. 24. Sextants.-To determine the position and range of an inaccessible target T, an aeroplane or like is sent up with instructions to the pilot to steer over two definite points A, B, Fig. 1, the range being determined for a standard height over each point, or the pilot steers over a single point A, Fig. 2, first to get the range, and then at right-angles to his former course to get the target's bearing. The range-finding instrument employed is of the depression type and comprises, as shown, a halfsilvered mirror 1, in which the target is seen by reflection from an adjustable mirror 2 and through which the operator looks to get the horizontal from the pendulum-suspended system 5, 6. If a pentagonal prism 7 is employed with a silvered surface 8 and with a wedge 10 joined on to it at a halfsilvered face, the operator can, at the same time, get a view vertically downwards. In a modification, the reflector 2 is partly transparent, and the operat r looks through this at the target and gets his horizontal by reflection in the mirror.

Distillation of lubricating stock

Improvements in Apparatus for the Control of Gun Fire.

4842. Barr, A., and Stroud, W. Feb. 25. [Addition to 27,217/13.] Range-finders. - The movable indicator consists of a pointer 8 brought into coincidence with a fixed pointer 11, a subsidiary pair of pointers 8<1>, 11<1> being supplied with the pointer moving slower so as to check alinement. In a further modification, the pointer can be traversed by a screw.

Perfectionnements apportés aux dispositifs pour indiquer, repérer et déterminer à l'avance la position, la direction et la vitesse de mouvement d'un objet éloigné

Perfectionnements aux dispositifs gyroscopiques, aux appareils de réglage du tir et aux instruments pour déterminer la vitesse de déplacement d'une cible et corriger les dérivations

Mounting for range-finders.

Improvements in or connected with Means for Supporting and Working Heads of Rangefinders.

13,813. Barr, A., and Stroud, W. June 30. Range-finders.-The instrument is supported in position by means of handles L, L', Fig. 6, on the outer casing, which are held by the operator or are provided with extensions L<2> resting on the ground. The deflecting-prism is manipulated by a working head K<1> in close proximity to the handle L<1>, and in the same way astigmatizers &c. can be put into or out of action while the instrument is in working position by means, such as a lever M4, accessible from the handle L. In a modification, Fig. 7, a rod L<4> having forks L<3> supports the instrument, this rod being held in the hand or being provided with a clip attachment L<6> to enable it to be secured to a conical socket in a ship's rail &c. Specification No. 1462, A.D. 1903, is referred to in the Provisional Specification.

Device for Adjusting and Fixing the Length of a Connection between Two Pieces.

Improvements in Kinematographs, Kinetoscopes, Zoetropes, and such like Instruments.

4661. Stroud, W. Feb. 25. Kinematographic apparatus.-In instruments of the kinematograph, kinetoscope, and zoetrope types, a series of continuously-moving mirrors or lenses, or combinations of mirrors and lenses, are adapted to produce, without occultations, successive stationary images of a series of continuously-moving pictures &c. In zoetropes &c. mirrors M<1>, M<2>, &c., and in kinematographs, kinetoscopes, &c. lenses L<1>, L<2>, &c., are spaced round a cylindrical drum d, and produce at a calculable position practically stationary images of the pictures &c. P<1>, P<2>, &c. spaced round the drum D. Fig. 4 shows one of two somewhat similar arrangements described, in which the drum d bears the lenses L<1>, L<2>, &c., the drum D the pictures P<1>, P<2>, &c., the reflectors A and B being fixed and not rotating with the drums. The lenses and pictures may also, by passing over suitable pulleys, have a rectilineal instead of a rotary motion. In Fig. 8, concave lenses L<1>, L<2>, &c. are used, the drum d serving both as the lens and picture drum. In all the cases described above, the succession of transparencies &c. may be projected on a screen using a source of light S, condenser C, and a fixed lens l, as in the ordinary kinematograph. By substituting sensitive plates or films for the pictures, photographic pictures of the kind required for these instruments may be obtained.