B - Operations – Transporting – 26 – B
Patent
B - Operations, Transporting
26
B
138/62
B26B 17/00 (2006.01) B23D 15/14 (2006.01) B23D 29/00 (2006.01)
Patent
CA 1142056
HYDRAULICALLY ACTUATED APPARATUS Abstract of the Disclosure A multipurpose, hydraulically actuated apparatus comprising a piston movable in response to fluid under pressure within walls defining a piston chamber. Actuating fluid is supplied to the piston chamber by a uniquely constructed hand operated fluid pump. The area of the fluid impinging surface of the piston is in multiples of one inch. Accordingly, when the apparatus is used as a hydraulic scale the weight being lifted by the piston can be read directly on a pressure gauge which is calibrated in pounds per square inch and which is connected to the piston chamber below the piston. The apparatus can readily be converted to function as a cutting device for use by a plumber in cutting nuts and the like in situ by connecting a U-shaped member to the walls of the unit and by connecting a cutting element to the outer face of the piston. The U-shaped member includes spaced apart arms and a bight portion defining a closed space adapted to encircle the nut which is to be cut. Pressure exerted on the piston will cause the cutting element to move toward the bight portion of the U-shaped member and into pressural engagement with the nut. A unique pressure tight swivel coupling is provided in the conduit interconnecting the hand pump and the piston chamber so that the latter can swivel freely relative to the hand pump. A further novel feature of the apparatus of the invention comprises an air tight, fluid carrying collapsible liner which is housed within the hollow body of the hand pump. The hollow body of the pump is vented to atmosphere but the liner is sealably carried therewithin so that the fluid within the liner cannot escape to atmosphere through the vent. With this arrangement, as fluid is withdrawn from the hand pump and forced into the piston chamber, air will enter the hollow body causing the liner to collapse. However, because the liner is sealed relative to atmosphere it will effectively prevent air or other contaminates from intermixing with the fluid.
359450
Irwin Lawrence F.
Meredith & Finlayson
LandOfFree
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