Systems for Supporting Dumbbell and Barbell

The present disclosure generally pertains to barbell and dumbbell support systems that allow for a user to perform exercises without requiring movement of the body of the user from the proximity of weight support assemblies when weights are in use. Weight support systems include extendable arm assemblies for the holding and positioning of barbells or dumbbells in a location conducive to performing exercises. Extendable arm assemblies automatically retract when a user removes the barbell or dumbbells from the assemblies, allowing the user to perform the intended exercise without moving away from the system. The retracted position of the extendable arm assemblies allows the user to replace the weights without the assistance of others at the conclusion of the exercise.

Method and apparatus for adaptive control of an electronic imagery camera

The invention relates to a method and an apparatus for adaptive control of an electronic imagery camera. The method consists in illuminating (46) a field of view with reflectance (12), selectively picking up (18) a desired region of image field within the field of view and producing (24) an image signal of this region, reducing (30) the low-frequency components of the image region signal picked up, producing a contrast signal from the image signal, producing a mean-value signal (30) from several contrast signals, comparing (36) the mean-value signal with a reference signal corresponding to a predetermined contrast threshold (38) and then controlling the level of illumination (40, 42, 46) or the separation (44, 48) of the camera with respect to the object field.

METHOD AND APPARATUS FOR ADAPTIVE CONTROL OF AN ELECTRONIC IMAGING CAMERA.

A variable ratio rack and pinion gear

A variable ratio rack and pinion gear having a rack bar (1) the rack (8) of which engages with the pinion (10) so that rotation of the pinion (10) displaces the rack member (1) longitudinally relative to the housing (6). A yoke (25) supports the member (1) with its teeth in engagement with the pinion (10) and straddles the member (1) to restrain displacement of that membmer (1) relative to the housing (6) in a direction parallel to the axis of rotation for the pinion (10). The rack member (1) has a longitudinally extending non-rectilinear grooved track (14) which is engaged by a peg (17) rotatably carried in a mounting block (21). The block (21) retains the yoke (25) in the housing (6) with the peg (17) located within and extending through the yoke (25). The peg (17) engages with the track (14) so that during longitudinal displacement of the rack member (1) the reaction between the groove (14) and peg (17) imparts controlled rotation to the member (1) to vary the ratio of the gear.

Power assisted steering gear assembly

Compact, simple, 2d raster, image-building fingerprint scanner

A beam (38) of electromagnetic radiation deflected by a moving mirror plate (56) of a micromachined scanner (54) produces a two dimensional ('2D') raster (132) on a scanned surface (28) of a block (34). The block (34) is transparent to electro-magnetic radiation of pre-established wavelengths. A radiation inlet-face (36) of the block (34) admits the beam (38) that then inpinges on the scanned surface (28) to exit the block (34) through a radiation outlet-face (42). After exiting the block (34), the beam (38) inpinges upon a radiation detector (142). Total internal reflection ('TIR') of the beam (38) from the scanned surface (28) at fingerprint valleys and frustration of TIR at fingerprint ridges causes the radiation detector (142) to produce a time-varying electrical signal that represents the fingerprint. The scanned surface (28) may be formed by a patch (302) of resilient material, that may be tinted to be transparent only at the pre-established wavelength of the electro-magnetic radiation.

Systems for supporting dumbbell and barbell

The present disclosure generally pertains to barbell and dumbbell support systems that allow for a user to perform exercises without requiring movement of the body of the user from the proximity of weight support assemblies when weights are in use. Weight support systems include extendable arm assemblies for the holding and positioning of barbells or dumbbells in a location conducive to performing exercises. Extendable arm assemblies automatically retract when a user removes the barbell or dumbbells from the assemblies, allowing the user to perform the intended exercise without moving away from the system. The retracted position of the extendable arm assemblies allows the user to replace the weights without the assistance of others at the conclusion of the exercise.

Rack and pinion gear assembly

A rack and pinion gear and a method of assembling such a gear

Flagstaff.

Elektrischer Hochfrequenztransforma tor zur Übertragung eines breiten Frequenz bandes

Desk appliance.

Relay device.

Jewelry display stand

Calf pen improvements