| Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374) |
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| 01/31/1978 | US4071345 Apparatus for press bending window glass |
| 01/31/1978 | US4071127 Method of working for bending metal material and thereby obtained friction core plate of friction clutch |
| 01/31/1978 | US4071048 Coated hollow metal tubes and process for producing coated hollow metal tubes processed by bending, pressing or punching |
| 01/31/1978 | US4070896 Press brake with improved ram leveling adjustment |
| 01/31/1978 | US4070887 Roll former for tube mill |
| 01/24/1978 | US4069749 Expansible drive shaft tool mechanism |
| 12/27/1977 | US4064727 Roll forming machine |
| 12/20/1977 | US4063445 Bending press |
| 12/20/1977 | US4063442 Method and apparatus for forming tubes |
| 12/06/1977 | US4061098 Process for bending metal sheet |
| 11/15/1977 | US4057990 Bender roll guard |
| 11/08/1977 | US4056962 Rolling machine assembly |
| 11/08/1977 | US4056961 Method and apparatus for forming cylindrical spacers from metal blanks |
| 10/25/1977 | US4055070 Gage stop assembly |
| 10/25/1977 | US4055066 Automatic machine for bending sheet material |
| 10/25/1977 | US4054982 Method of forming circularly bent articles, in particular wheel rims, from a straight metal profile strip and apparatus for performing the method |
| 09/27/1977 | US4050277 Method and equipment for roll forming products of complex shape |
| 09/20/1977 | US4048839 Die means having workpiece releasing means |
| 09/20/1977 | US4048830 Four-roller sheet bending machines |
| 09/13/1977 | US4047411 Numerically controlled pyramid roll forming machine |
| 09/06/1977 | US4045989 Sheet metal bending apparatus |
| 08/30/1977 | US4044640 Method of making reinforcements for concrete |
| 08/23/1977 | US4043165 Three-point, air-bending sheet metal bender |
| 08/16/1977 | US4041704 Stop mechanism for a bending press, plate shear or the like machines |
| 08/02/1977 | US4039063 Run-out apparatus and method for roll-formed panels |
| 07/05/1977 | US4033572 Sheet-plate positioning device for machine tools |
| 07/05/1977 | US4033568 Edge working machine with hold down for sheet metal to be worked |
| 06/28/1977 | US4031737 Machine tool apron guiding system |
| 06/28/1977 | US4031731 Alert means for a programming system for press brakes or the like |
| 05/24/1977 | US4024684 Pre-notched building panel with splice plate and method of preparing the same |
| 05/03/1977 | US4020666 Mobile forming machine with embossing rolls |
| 04/12/1977 | US4016742 Press-forming apparatus |
| 03/29/1977 | US4014204 Machine for processing metal in sheet or plate form |
| 03/08/1977 | US4010628 Method and device of making a profiled body of at least one band of materials |
| 02/22/1977 | US4008591 Device for zigzag folding of strip material |
| 02/08/1977 | US4006623 Positioning device |
| 02/08/1977 | US4006617 Method and apparatus for roll forming tapered structural members |
| 02/01/1977 | US4005597 File forming press |
| 01/11/1977 | US4002417 Apparatus for folding a sheet of plastic material |
| 01/11/1977 | US4002000 Beam construction and method of manufacture |
| 12/21/1976 | US3998140 Machine for manufacturing corrugated structures |
| 12/14/1976 | US3996778 Loader and unloader for plate roll machine |
| 12/14/1976 | US3996777 Press brake work piece alignment apparatus |
| 11/30/1976 | US3994152 Machine for bending cleat edges |
| 11/16/1976 | US3991600 Stirrup machine |
| 11/09/1976 | US3990291 Bending machine for bending sheet and strip |
| 11/02/1976 | US3988914 Isothermal metal forming apparatus |
| 11/02/1976 | US3988913 Isothermal metal forming apparatus |
| 10/19/1976 | US3986379 Die pad assembly |
| 09/28/1976 | US3982417 Device for controlling a movable member on a machine tool |
| 09/14/1976 | US3979941 Steering means particularly for internal pipe bending mandrels |
| 09/14/1976 | US3979808 Method of continuously processing metal bands into hollow rails |
| 09/07/1976 | US3978706 Precision bending work method for metallic materials |
| 09/07/1976 | US3978701 Power roll mill guarding device |
| 08/31/1976 | US3977228 Tool for forming pipe from sheet metal |
| 07/20/1976 | US3969921 Metal bending press with removable upper beam |
| 06/29/1976 | US3965721 Adjustable die holder |
| 05/25/1976 | US3958436 Dynamically controlled forming by drawing machine |
| 05/11/1976 | US3955389 Springback compensated continuous roll forming machines |
| 04/13/1976 | US3949587 Front and rear magnetic gauges for a press brake and the method of operating same |
| 04/06/1976 | US3948134 Machine tool driving apparatus |
| 04/06/1976 | US3948074 Combination cleat bender and bar folder apparatus |
| 03/30/1976 | US3946588 Methods of and apparatus for edge-forming metallic plates |
| 03/23/1976 | US3945239 Metal forming machine with multiple extended beds |
| 03/23/1976 | US3945233 Sheet metal strip roller apparatus |
| 03/23/1976 | US3945232 Roll-stand for roll-forming machine |
| 03/16/1976 | US3944782 Isothermal metal forming |
| 02/24/1976 | US3939686 Wedge actuated cutting and/or forming tools |
| 02/17/1976 | US3938363 Forming metal plate |
| 02/10/1976 | US3937072 System for measuring plastic deformation created by a bending press |
| 02/10/1976 | US3937052 Machine for rolling and curving printing plates |
| 01/20/1976 | US3933070 Or forming tools |
| 01/13/1976 | US3931728 Portal press |
| 01/13/1976 | US3931725 Mobile machine for producing metal siding |