221 |
Sole cutting machine |
US521793D |
|
US521793A |
1894-06-26 |
|
|
222 |
Machine |
US347962D |
|
US347962A |
1886-08-24 |
|
|
223 |
Assigxoe to w |
US327547D |
|
US327547A |
1885-10-06 |
|
|
224 |
Improvement in wire-cutters |
US191153D |
|
US191153A |
1877-05-22 |
|
|
225 |
Improvement in dies for making plow-braces |
US174456D |
|
US174456A |
1876-03-07 |
|
|
226 |
Improved automatic press |
US49877D |
|
US49877A |
1865-09-12 |
|
|
227 |
SPRING DEVICE |
PCT/GB9101162 |
1991-07-12 |
WO9201171A3 |
1992-06-11 |
RODNEY LINVAL |
A spring device (10) comprises a first piston (12) operable within a first cylinder (14), and a second piston (16) operable within a second cylinder (18). The interiors of the two cylinders (14, 18) are in communication such that a chamber (22) comprising pressurised gas is formed between the first piston (12) and the second piston (16). A second chamber (28) comprising pressurised gas is formed between the second piston (16) and the second cylinder (18). In use when a force is applied to move the first piston (12) into the first cylinder (14), the movement of the first piston (12) is resisted by the fluid in the chamber (22). This, in turn, causes the second piston to move against the resistance of the gas in the second chamber (28). The result is a resilient resistance to the depression of the first piston (12) and a storage of energy in the device. When the force is alleviated, the resilience of the device (10) urges the pistons (12, 16) to their rest positions. |
228 |
SPRING DEVICE |
PCT/GB9101162 |
1991-07-12 |
WO9201171A2 |
1992-01-23 |
RODNEY LINVAL |
A spring device (10) comprises a first piston (12) operable within a first cylinder (14), and a second piston (16) operable within a second cylinder (18). The interiors of the two cylinders (14, 18) are in communication such that a chamber (22) comprising pressurised gas is formed between the first piston (12) and the second piston (16). A second chamber (28) comprising pressurised gas is formed between the second piston (16) and the second cylinder (18). In use when a force is applied to move the first piston (12) into the first cylinder (14), the movement of the first piston (12) is resisted by the fluid in the chamber (22). This, in turn, causes the second piston to move against the resistance of the gas in the second chamber (28). The result is a resilient resistance to the depression of the first piston (12) and a storage of energy in the device. When the force is alleviated, the resilience of the device (10) urges the pistons (12, 16) to their rest positions. |
229 |
Workpiece discharging devices and related systems and methods |
US13178815 |
2011-07-08 |
US09126256B2 |
2015-09-08 |
Detlef Breitling; Andreas Bunz |
A machine tool for processing workpieces includes a processing device from which processed products to be discharged can be produced from a workpiece; and a discharge device including a discharge flap that can be pivoted into a discharge position inclined downwards relative to a horizontal position in order to discharge processed products and which defines a discharge direction in the discharge position, the discharge flap comprising a part support disposed along the upper side of the discharge flap along which the processed products move during discharge in the discharge direction, where the part support has at least two support regions which extend in the discharge direction and which are configured to accommodate different types of processed products. |
230 |
APPARATUS HAVING SCRAP-GUIDING REGIONS POSITIONED ON CUTTING ASSEMBLY |
US13653127 |
2012-10-16 |
US20140102273A1 |
2014-04-17 |
William Moore |
An apparatus, comprising a cutting assembly being configured to cut an object, and scrap-guiding regions being positioned on opposite sides of the cutting assembly. |
231 |
STRIPPING DEVICE |
US13550456 |
2012-07-16 |
US20130036888A1 |
2013-02-14 |
Harald Weigelt |
In the case of a stripping device (3) for use with a cutting tool (1) with a cutting element, in particular a punch (2), for machining a workpiece, in particular a curved metal sheet (6), at least one fastening piece (4, 28, 40) for fastening it to the cutting tool, a spring-elastic element (21) arranged outside the workpiece contact region, a stripping element (15, 34) which comes into contact with the workpiece and surrounds the cutting element (2), and at least one guide element (11, 26, 33) guiding the stripping element (15, 34) being provided, a device for securing against rotation is provided to essentially prevent the stripping element (15) from rotating. |
232 |
Punching Die |
US11719496 |
2005-11-18 |
US20080092713A1 |
2008-04-24 |
Yukio Takahashi; Satoshi Shimizu; Hiroshi Nakai |
Provided is a punch tool which enables improvement in accuracy of processing a work by suppressing rattling between a punch body and a punch guide and eliminating almost all steps or the like in a punched surface (cut surface) of the work. A punch tool includes a cylindrical punch guide; a punch body movably provided in the vertical directions in the punch guide; a punch head provided at an upper end of the punch body; a stripper spring provided on a lower side of the punch head; and a plurality of rotation control means including key grooves and formed so as to vertically extend in the punch guide or the punch body and keys and which are provided in the punch body or the punch guide and are movably fitted in the vertical directions to the key grooves. |
233 |
Stock lifter for metal forming dies and method for making the same |
US11018305 |
2004-12-21 |
US07024910B2 |
2006-04-11 |
Joel T. Pyper; John K. Pyper; Scott M. Breen; Charles T. Brown; Jeffery S. Pyper |
A self-contained stock lifter is particularly adapted for use in multiple station, progressive metal forming dies and the like, and includes a base plate with two vertical through holes adjacent opposite sides, and a vertical spring unit aperture located between the through holes. The stock lifter also includes a lifter bar having two vertical through holes in vertical registry with the base plate through holes. Two rigid guide shafts are mounted in the base plate through holes to permit the lifter bar to reciprocate in a manner which selectively lifts stock in the die to permit longitudinal shifting of the stock along the multiple die stations. A spring unit has a base retained in the spring unit aperture, and a reciprocating rod biased outwardly, with a free end abutting a central portion of the lifter bar to shift the lifter bar to an extended position, thereby defining a fully self-contained unit that can be readily mounted in and removed from the die to reduce manufacturing and repair costs. |
234 |
Stock lifter for metal forming dies and method for making the same |
US11018305 |
2004-12-21 |
US20050097938A1 |
2005-05-12 |
Joel Pyper; John Pyper; Scott Breen; Charles Brown; Jeffery Pyper |
A self-contained stock lifter is particularly adapted for use in multiple station, progressive metal forming dies and the like, and includes a base plate with two vertical through holes adjacent opposite sides, and a vertical spring unit aperture located between the through holes. The stock lifter also includes a lifter bar having two vertical through holes in vertical registry with the base plate through holes. Two rigid guide shafts are mounted in the base plate through holes to permit the lifter bar to reciprocate in a manner which selectively lifts stock in the die to permit longitudinal shifting of the stock along the multiple die stations. A spring unit has a base retained in the spring unit aperture, and a reciprocating rod biased outwardly, with a free end abutting a central portion of the lifter bar to shift the lifter bar to an extended position, thereby defining a fully self-contained unit that can be readily mounted in and removed from the die to reduce manufacturing and repair costs. |
235 |
Stock lifter for metal forming dies and method for making the same |
US10268477 |
2002-10-10 |
US06848290B2 |
2005-02-01 |
Joel T. Pyper; John K. Pyper; Scott M. Breen; Charles T. Brown; Jeffery S. Pyper |
A self-contained stock lifter is particularly adapted for use in multiple station, progressive metal forming dies and the like, and includes a base plate with two vertical through holes adjacent opposite sides, and a vertical spring unit aperture located between the through holes. The stock lifter also includes a lifter bar having two vertical through holes in vertical registry with the base plate through holes. Two rigid guide shafts are mounted in the base plate through holes to permit the lifter bar to reciprocate in a manner which selectively lifts stock in the die to permit longitudinal shifting of the stock along the multiple die stations. A spring unit has a base retained in the spring unit aperture, and a reciprocating rod biased outwardly, with a free end abutting a central portion of the lifter bar to shift the lifter bar to an extended position, thereby defining a fully self-contained unit that can be readily mounted in and removed from the die to reduce manufacturing and repair costs. |
236 |
Methods and apparatus for removing a slug from a frame of an automobile |
US09770477 |
2001-01-29 |
US06625861B2 |
2003-09-30 |
Thomas Nolen Whetstone; Martin H. MacDonald |
A method is provided for removing a slug from a frame of an automobile. A mandrel configured for insertion into an aperture of the slug and a mandrel engaging plate configured to engage the mandrel. The method also includes a cammed jaw connected to the mandrel engaging plate and an actuator. The mandrel engaging plate is configured to engage the automobile frame and the actuator is configured to separate the cammed jaw from the mandrel engaging plate such that the mandrel is drawn through the aperture of the slug, thereby removing the slug from the automobile frame. |
237 |
Methods and apparatus for removing a slug from a frame of an automobile |
US09770477 |
2001-01-29 |
US20020100170A1 |
2002-08-01 |
Thomas Nolen
Whetstone; Martin
H.
Macdonald |
An apparatus and method are provided for removing a slug from a frame of an automobile. The apparatus a mandrel configured for insertion into an aperture of the slug and a mandrel engaging plate configured to engage the mandrel. The apparatus also includes a cammed jaw connected to the mandrel engaging plate and an actuator. The mandrel engaging plate is configured to engage the automobile frame and the actuator is configured to separate the cammed jaw from the mandrel engaging plate such that the mandrel is drawn through the aperture of the slug, thereby removing the slug from the automobile frame. |
238 |
Die press unloader |
US677479 |
1991-03-29 |
US5245900A |
1993-09-21 |
Siegfried Dojnik |
A die press unloader which retrieves material from beneath the lower die of a pair of dies mounted in a die press. The material which is retrieved will have passed through the lower die, and can comprise either scrap, for example in making perforated strip or product, for example in making shaped blanks from a strip. The unloader utilizes a combination of gravity and a mechanical arm, preferably actuated by a double-acting air cylinder, the movements of which are controlled by the press itself. |
239 |
Die stamping system |
US235957 |
1988-08-24 |
US4934230A |
1990-06-19 |
Bernard J. Wallis |
A die stamping system includes opposed die members which clamp a metal workpiece to be shaped, cut or pierced after which the die members are moved away from one another and a part is subsequently ejected wherein the ejector is controlled for a selected delay time by a plurality of cylinder assemblies mounted in a manifold so that they are connected to a source of inert gas such as nitrogen under high pressure and to a source of hydraulic pressure. Each cylinder assembly includes a piston associated with and exposed to the nitrogen in the manifold. The cylinder assemblies are connected to a single hydraulic valve which has associated therewith an accumulator and which is operated simultaneously to actuate the cylinders. The hydraulic lines to the cylinders are provided in the manifold. |
240 |
Hydraulic press with integral knockout and stroke control |
US875353 |
1978-03-20 |
US4242901A |
1981-01-06 |
Eugene W. Pearson; Wilbur G. Short |
A press, comprising a frame supporting an upper and lower bed for attachment of an upper and lower bolster, the upper and lower bolster each carrying mating halves of a complementary die, and the upper bolster having a knock-out opening therethrough, a hydraulic knock-out means carried by a drive means above the upper bolster that is adjustably electro-mechanically timed to cooperate with pins internal to the upper bolster to eject any work that may have remained in the upper die upon separation of the two mating die halves. |