Fluid operated device for starting the movement of shafts from hubs

Claim 1

A DEVICE FOR STARTING THE MOVEMENT OF SHAFTS FROM HUBS COMPRISING A HYDRAULIC PRESS AND A HAMMER DEVICE, SAID HYDRAULIC PRESS HAVING A PRESS PISTON AND A BED ADAPTED TO SUPPORT SAID HUB, A BORE THROUGH SAID BED FOR PASSAGE OF SAID SHAFT AND MEANS FOR APPLYING A PRESSURE BEHIND SAID PRESS PISTON TO MAINTAIN ENGAGEMENT OF SAID BEING INTERPOSED BETWEEN SAID PRESS PISTON AND SAID SHAFT, AND PLUNGER MEANS CARRIED BY SAID HAMMER DEVICE FOR IMPARTING AN IMPACT BLOW AGAINST SAID SHAFT, SAID HAMMER DEVICE INCLUDING A BODY MEMBER HAVING MEANS DEFINING A LONGITUDINAL BORE THERETHROUGH, SAID LONGITUDINAL BORE HAVING A CLOSED TOP END AND A BOTTOM END INCLUDING A BORE FOR SAID PLUNGER MEANS, A HAMMER PISTON HAVING TWO PISTON HEADS AND BEING SLIDABLY SUPPORTED WITHIN SAID LONGITUDINAL BORE BETWEEN AN UPPER IMPACT-POTENTIAL POSITION WHEREIN ONE OF SAID PISTON HEADS IS ADJACENT SAID TOP END OF SAID LONGITUDINAL BORE AND A LOWER IMPACT-DELIVERING POSITION WHEREIN THE OTHER OF SAID PISTON HEADS IS ADJACENT SAID BOTTOM END OF SAID LONGITUDINAL BORE, SAID PLUNGER MEANS HAVING AN ANVIL PORTION WITHIN SAID LONGITUDINAL BORE ADJACENT SAID BOTTOM END THEREOF AND AN END PORTION ADAPTED TO SEAT AGAINST SAID SHAFT TO TRANSMIT SAID IMPACT BLOW TO SAID SHAFT, AND INTERMEDIATE FLUID SUPPLY MOTIVATING MEANS INCLUDING AN INTERMEDIATE ARCUATE RECESS IN SAID HAMMER PISTON AND UPPER AND LOWER CYLINDRICAL GROOVES IN SAID BODY MEMBER TO ALTERNATELY AND CONTINOUSLY RAISE SAID HAMMER PISTON WITHIN SAID LONGITUDINAL BORE AND LOWER SAID HAMMER PISTON AGAINST SAID ANVIL PORTION OF SAID PLUNGER WITH SUFFICIENT SPEED AND PRESSURE TO INITIATE SAID IMPACT BLOW.

Claim 2

A DEVICE FOR STARTING THE MOVEMENT OF SHAFTS FROM HUBS COMPRISING A HYDRAULIC PRESS AND A HAMMER DEVICE, SAID HYDRAULIC PRESS HAVING A PRESS PISTON AND A BED ADAPTED TO SUPPORT SAID HUB, A BORE THROUGH SAID BED FOR PASSAGE OF SAID SHAFT AND MEANS FOR APPLYING A PRESSURE BEHIND SAID PRESS PISTON TO MAINTAIN ENGAGEMENT OF SAID BEING INTERPOSED BETWEEN SAID PRESS PISTON AND SAID SHAFT, AND PLUNGER MEANS CARRIED BY SAID HAMMER DEVICE FOR IMPARTING AN IMPACT BLOW AGAINST SAID SHAFT, SAID HAMMER DEVICE INCLUDING A BODY MEMBER HAVING MEANS DEFINING A LONGITUDINAL BORE THERETHROUGH, SAID LONGITUDINAL BORE HAVING A CLOSED TOP END AND A BOTTOM END INCLUDING A BORE FOR SAID PLUNGER MEANS, A HAMMER PISTON HAVING TWO PISTON HEADS AND BEING SLIDABLY SUPPORTED WITHIN SAID LONGITUDINAL BORE BETWEEN AN UPPER IMPACT-POTENTIAL POSITION WHEREIN ONE OF SAID PISTON HEADS IS ADJACENT SAID TOP END OF SAID LONGITUDINAL BORE AND A LOWER IMPACT-DELIVERING POSITION WHEREIN THE OTHER OF SAID PISTON HEADS IS ADJACENT SAID BOTTOM END OF SAID LONGITUDINAL BORE, SAID PLUNGER MEANS HAVING AN ANVIL PORTION WITHIN SAID LONGITUDINAL BORE ADJACENT SAID BOTTOM END THEREOF AND AN END PORTION ADAPTED TO SEAT AGAINST SAID SHAFT TO TRANSMIT SAID IMPACT BLOW TO SAID SHAFT, AND INTERMEDIATE FLUID SUPPLY MOTIVATING MEANS INCLUDING AN INTERMEDIATE ARCUATE RECESS IN SAID HAMMER PISTON AND UPPER AND LOWER CYLINDRICAL GROOVES IN SAID BODY MEMBER TO ALTERNATELY AND CONTINOUSLY RAISE SAID HAMMER PISTON WITHIN SAID LONGITUDINAL BORE AND LOWER SAID HAMMER PISTON AGAINST SAID ANVIL PORTION OF SAID PLUNGER WITH SUFFICIENT SPEED AND PRESSURE TO INITIATE SAID IMPACT BLOW.