Improvements in or connected with Hydraulic Machinery for Making Artificial Paving Slabs and similar Blocks.
Номер патента: GB190218617A
Опубликовано: 20-08-1903
Автор(ы): Arthur Musker
Принадлежит: Individual
Опубликовано: 20-08-1903
Автор(ы): Arthur Musker
Принадлежит: Individual
Реферат: 18,617. Muster, A. Aug. 25. Moulding paving slabs and blocks.-Fig. 1 shows a diagrammatic plan view of a hydraulic pressing- machine for moulding concrete slabs or blocks. A rotary mould table a is mounted on a shaft b over a fixed table, and is rotated intermittently by an endless belt k and a pawl engaging with a ratchetwheel l, or worm or other gearing. An upper pressing-plunger e works in a cylinder d, which is first supplied with water at low pressure by a large pump h<1> until the press-head comes into action, and afterwards with high-pressure water by a small pump h<2>, worked from the same crosshead as the large pump. The delivery pipes i from the pumps are united to a common supply pipe i<1>, and are fitted with loaded escape valves g,j and pipes g<1>, j<1>, and a non-return valve g'. After the pressing action is over, the whole system is relieved of pressure by opening a valve i' by hand, and the ram is raised by a counterweight o connected to the ram by chains passing over pulleys o'. By this system, water is supplied directly from the pumping-engine tothe ram without the use of an accumulator or intensifier. The slabs are ejected from the moulds by mechanical, or mechanical and manual, means.
Improvement in elastic pitmen or connecting-rods
Номер патента: US172903A. Автор: . Владелец: . Дата публикации: 1876-02-01.