Patents for B21J 13 - Details of machines for forging, pressing, or hammering (6,375)
05/1979
05/29/1979CA1055280A1 Apparatus and method for removing a plurality of blade dies
05/08/1979CA1054098A1 Die changer
05/08/1979CA1053940A1 Hammer forging press
05/02/1979EP0001692A1 Self-adjusting device for a press
05/01/1979US4151736 Quick-change apparatus for heavy die sets
04/1979
04/24/1979US4150557 Forging apparatus having means for radially moving blade die segments
04/24/1979US4150452 Punch stripper
04/24/1979US4150451 Die holder assembly
03/1979
03/27/1979US4145784 Timed ejector for a header
03/20/1979US4144736 Die forging press
01/1979
01/30/1979US4136597 Drill screw and die for producing same
01/09/1979US4133199 Transfer mechanism for forging machines
12/1978
12/26/1978CA1044880A1 Method and apparatus for making an eccentric locking collar
09/1978
09/26/1978US4117293 Method for conveying a row of forging ingots through an inductive heating apparatus
09/26/1978US4116039 Drop hammer frame weldment and assembly
09/26/1978CA1039322A1 Apparatus utilizing magnetic means for transferring articles to and from predetermined positions
09/19/1978US4114217 Die assembly
08/1978
08/22/1978US4107972 Dies for forging and trepanning large diameter couplings and method of forging and trepanning couplings
08/08/1978US4105443 Metal-forming dies
08/08/1978US4104899 Pneumatic buffering system
08/01/1978US4103407 Manufacturing method for a high pressure distributor rotor
07/1978
07/25/1978US4102174 Multi-track machine press
07/25/1978US4102034 Part orienting and feeding mechanism
05/1978
05/30/1978US4091486 Punch knock-out mechanism for header
05/23/1978US4090391 Press construction
05/16/1978US4089357 Threaded fastener
05/09/1978US4088000 Hot forging machine having die preheating unit
04/1978
04/18/1978US4084478 Screw heads
04/18/1978US4084418 Device for controlling the manipulator movements in a forming machine, in particular in a hammer forging press
03/1978
03/21/1978US4079474 Driving mechanism for transfer finger of bolt forming header
03/14/1978US4078414 Apparatus for cold forming metal parts
03/07/1978US4077523 Vertically swinging article transfer apparatus
03/07/1978US4077303 Apparatus for generating an impact force
12/1977
12/27/1977US4064734 Hammer forging presses
12/27/1977US4064733 Press
12/27/1977US4064731 Device for inserting a hot, heavy blank in a die
12/13/1977US4062219 Hydraulic-frictional system for rotating the arm of a forging manipulator
11/1977
11/22/1977US4058865 Automatic high-speed cold heading machine
11/01/1977US4056207 Die changer
09/1977
09/27/1977US4050283 Method and apparatus for forging bevel gears
09/20/1977US4048842 Shock and vibration control system for forging hammer
09/20/1977US4048839 Die means having workpiece releasing means
09/20/1977US4048838 Arrangement for controllably reciprocating a workpiece gripping assembly of a multi-stage press
09/13/1977US4047420 Press for swaging metal sleeves
08/1977
08/30/1977US4044619 Device for controlling auxiliary means arranged in the reciprocating carriage of single or multistage presses
08/30/1977US4044592 Coining die assembly
08/09/1977US4040161 Apparatus and method for removing a plurality of blade dies
07/1977
07/05/1977US4033250 Pneumatic buffering system
06/1977
06/28/1977US4031736 Workpiece manipulator for use in a forging press
06/14/1977US4028918 Assembly for applying lubricant to the working area of a punching device
04/1977
04/05/1977US4015461 Closed drop forging die
03/1977
03/29/1977US4014203 Ejector mechanism for ejecting pressed parts from the bottom die of press
03/22/1977US4012938 Device for inserting or removing a hot blank in a drop hammer
02/1977
02/22/1977US4008599 Apparatus for making bevel gear
01/1977
01/25/1977US4004448 Automatic die safety lock for a metal stamping die
12/1976
12/28/1976US3999417 Apparatus for cold-forming metal workpieces
12/07/1976US3995470 Metal-forming systems
11/1976
11/30/1976US3994403 Gripping devices for multi-stage upsetting presses
11/23/1976US3992917 Forging machine
10/1976
10/26/1976US3987658 Graphite forging die
09/1976
09/28/1976US3982458 Die set
08/1976
08/24/1976US3976204 Mechanical handling apparatus
08/17/1976US3975028 Apparatus for sealing a track shoe
08/10/1976US3973427 Mold changing apparatus for a press machine
07/1976
07/27/1976US3971408 Sprayer nozzle construction
06/1976
06/29/1976US3965718 Transfer mechanism
06/29/1976US3965716 Device for swage-forging shafts
06/15/1976US3962899 Method and apparatus for making an eccentric locking collar
04/1976
04/27/1976US3952884 Apparatus for feeding headed work blanks
04/06/1976US3948078 Thermal isolation mounting for drawn and wall ironing ram
03/1976
03/23/1976US3945239 Metal forming machine with multiple extended beds
03/23/1976US3945072 Apparatus for the control of die heads of presses with movable dies
03/16/1976US3943588 Apparatus for removing a plurality of seperate elements and methods of utilizing same
02/1976
02/17/1976US3938208 Knockout mechanism for a high-speed automatic cold heading machine
02/10/1976US3937053 Forming die structure
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