公开(公告)号：US3572145A

公开(公告)日：1971-03-23

申请号：US3572145D

申请日：1969-10-08

Applicant: HITCO

Inventor： SPORCK CLAUS L

IPC: F16H15/42 ,  F16H55/52

CPC classification number: F16H15/42

Abstract: MECHANISM FOR CHANGING THE SPEED OF ROTATION OF AN OUTPUT SHAFT RELATIVE TO AN INPUT SHAFT IN WHICH A PAIR OF TORQUE TRANSMITTING RINGS ARE MOUNTED ON A CARRIAGE AND INTERENGAGED FOR ROTATION ABOUT FIXED AXES, ONE RING BEING IN FRICTIONAL CONTACT WITH AN EXPANSIBLE PULLEY ON THE INPUT SHAFT AND THE OTHER RING BEING IN FRICTIONAL CONTACT WITH AN EXPANSIBLE PULLEY ON THE OUTPUT SHAFT, THE CHANGEIN SPEED BEING OBTAINED BY THAT CARRIAGE IS SHIFTABLE TO MOVE THE RINGS RADIALLY OF THE PULLEYS TO SHIFT THE POINTS OF CONTACT WITH RESPECT TO THE CENTERS OF ROTATION OF THE PULLEYS.

公开(公告)号：US3572075A

公开(公告)日：1971-03-23

申请号：US3572075D

申请日：1968-11-13

Applicant: HITCO

Inventor： SPORCK CLAUS L

IPC: B21B19/12 ,  B21D19/04 ,  B21D22/14 ,  B21D22/18 ,  B21H1/02 ,  B21B19/14

CPC classification number: B21B19/12 ,  B21D19/043 ,  B21D22/14 ,  B21D22/185 ,  B21H1/02

Abstract: The method of forming metal billets into desired cylindrical and circular shapes by imposing a squeezing force on the billet to cause the metal to flow in a direction for obtaining the desired shape while simultaneously imposing an additional force operating in a direction the same as the direction of metal flow caused by the squeezing force to assist the flow caused by the squeezing.