Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7210384 | Slug pulling preventing tooling die A punch and die tooling apparatus commonly used by metal fabricators for creating holes, passages and cavities in metal plate, the die having a unique internal bore which relieves the problem of slug pulling to ensure that a slug punched out of a metal sheet is not ... | 05/01/2007 |
| 7174821 | Punch for a braced die A punch for attachment to a brace of a braced die has a hollow cutting nose with a leading end for cutting a material to be punched and a trailing end opposite the leading end. A shaft extends from the trailing end of the nose and is sized to pass through an apertur... | 02/13/2007 |
| 7121178 | Punching tool with re-usable, neutral structural groups An improved punching tool (1) has a lower tool (3), which is subdivided into a lower tool base plate (7) and a lower-tool operative part (8). The lower tool base plate (7) has a receiving face, with which uniform base areas of a pl... | 10/17/2006 |
| 6988436 | Turret punch press The object of the present invention is to provide a turret punch press capable of discharging easily the small article work sheet cut off from the material work sheet, without employing a subhead separately from the punch driving mechanism. The punch press comprises... | 01/24/2006 |
| 6979153 | Deep-grooving insert having stepped cutting edge A deep-grooving chip-forming cutting insert includes a rear mounting portion, a front cutting portion, and a pair of side walls, each side wall extending along the front and rear portions. The front cutting portion includes a front end surface, a top surface, and a ... | 12/27/2005 |
| 6968763 | Orienting and stacking parts The invention provides an apparatus and method for orienting a part detached from a web of parts. The apparatus and method use a duct with at least one interior sloped side to orient the part in a substantially vertical orientation. The invention further provides an... | 11/29/2005 |
| 6640603 | Slug-retaining punch press tool A punch and die tool for cutting a slug from a sheet of material that is retained in the opening of the die and does not adhere to or follow the punch on its upward stroke, and a method for retaining a slug in a die, are disclosed. The die is formed with ... | 11/04/2003 |
| 6540451 | Hole punching apparatus A hole punching apparatus having a frame, a blade having a tubular cutting edge and a cavity, and a projection on the frame. The blade is movable relative to the frame between a retracted position and a cutting position. The projection moves into the blad... | 04/01/2003 |
| 6523445 | Loose lamination die with rotating blanking station In a method and apparatus for rotating loose laminations in a loose lamination die, a strip is fed through the die to a rotatable blanking chamber of a blanking station. There, a punch engages with a die ring to punch a lamination free from the strip. The... | 02/25/2003 |
| 6408729 | Steel rule for scrap material ejection die Improved steel rule for use in a cutting die for cutting fixed patterns in a single or plurality of stacked material layers according to the shape of the steel rule. The improvement in the rule assists in the removal of small pieces of scrap material thro... | 06/25/2002 |
| 6397715 | Slug-retaining punch press tool A punch and die tool for cutting a slug from a sheet of material that is retained in the opening of the die and does not adhere to or follow the punch on its upward stroke, and a method for retaining a slug in a die, are disclosed. The die is formed with ... | 06/04/2002 |
| 6318226 | Ammunition reloader press wad cutter A device for cutting wads used to reload ammunition. The device is used with an ammunition reloader press and comprises an anvil that threadably attaches to the head of a reloading press, a punch that attaches to a cartridge casing holder connected to the... | 11/20/2001 |
| 6135001 | Strip cutter for adhesive-backed media This is a cutter assembly for linerless strip media having an uncovered adhesive backing. There is a cutter for transverse movement across the media and a backing bar with at least two cutting edges. The backing bar can be rotated to place one of the cutt... | 10/24/2000 |
| 5906702 | Method and apparatus for removing profiles A method for forming a plurality of holes, creating profiles, in a plurality of vinyl layers using a hollow portion of an RF sealing die and for removing the profiles from the die using a base plate punch and a removal means. The method includes providing... | 05/25/1999 |
| 5887502 | Rotary punching device A rotary punching device for punching a hole on a sheet includes: a first rotary shaft having an outer peripheral surface; a punch mounted on the outer peripheral surface of the first rotary shaft; a second rotary shaft arranged in parallel with the first... | 03/30/1999 |
| 5178049 | Punching mechanism A punching device is provided that includes a frame disposed on a base and a pair of wall members, a lever having one end pivotally coupled between the wall members, a block slidably retained between the wall members by two plates and having an upper end ... | 01/12/1993 |
| 5136907 | Prevention of slug pulling in stamping presses Stamping die for use with a punch to produce holes in strip material with the resulting production of a slug has a camming rib in the die opening. The rib prevents slug pulling when the punch returns from its extended position to its retracted position. T... | 08/11/1992 |
| 4691604 | Anti-jamming die An improved press produces oval blanks arranged in a "nested" pattern from a web of material. The press includes a cutting die plate having a plurality of oval-shaped discharge apertures, an inclined die shoe underneath the cutting die plate, and a punch ... | 09/08/1987 |
| 4607553 | Self-clearing punch with removable blade A punch is disclosed having a hollow removable blade for punching an opening in a sheet of cardboard or other similar material. The blade has a beveled cutting edge about an inlet end. The diameter of the blade increases from the inlet end to the outlet e... | 08/26/1986 |
| 4572045 | Horizontal automatic punching machine having a gripping/lifting attachment and a transfer station An automatic punching machine having a gripping/lifting attachment which grips and lifts upright punched stacks from a delivery channel, turns them and deposits them onto transfer statics for further conveyance to an automatic bundling machine. The deposi... | 02/25/1986 |
| 4543865 | Punch press tool for punching small holes in a strip of sheet metal, and obtaining small punched blanks To permit punching of very small holes from a strip of sheet metal, for example to form a sequence of holes at the margin thereof, or to obtain small punched blanks, having diameters of a few millimeters, for example 1-2 mm or even less, and prevent adhes... | 10/01/1985 |
| 4539879 | Method and apparatus for forming and processing food spears Cucumber spears are rapidly and reliably packed into and around the inner periphery of a jar with the same cut side of each of the spears facing outwardly. The spears are formed by pushing a cucumber lengthwise through a set of knife blades, and the resul... | 09/10/1985 |
| 4494426 | Punch with removable blade A punch for cutting an elongated slug from material has a removable hollow blade having first and second sides, one side shorter than the other. The blade is received in a body having upper and lower seats for receiving the first and second sides of the b... | 01/22/1985 |
| 4372184 | Cutting assembly A cutting assembly is provided for use in cutting vegetable products, such as potatoes and the like, into a longitudinally extending central core and a plurality of longitudinally extending outer strips having a generally arcuate cross section. The cuttin... | 02/08/1983 |
| 4313358 | Dynamically balanced trim press A trim press for severing articles differentially pressure formed in a thermoplastic sheet comprising a pair of dynamically balanced trim die members mounted for movement toward and away from each other between spaced apart positions and closed positions ... | 02/02/1982 |
| 4082024 | Potato strip cutter Improvements in apparatus and methods for cutting potatoes into strips, wherein the potatoes are carried hydraulically in single file against and through an arrangement of knife blades, rapidly and with great force. The improvements reside in the manner i... | 04/04/1978 |
| 4009625 | Self-stripping punch with ears A side outlet, self-stripping punch adapted to be mounted in a bore in a die board. The self-stripping punch includes an elongated, cylindrical base having a cutting edge on the top end and a pair of locking ears on the bottom end to prevent rotation of t... | 03/01/1977 |
| 3971276 | Picture composing techniques and apparatus therefor A montage or "light" table comprising a structure movable along the table, and a punch mechanism mounted upon the structure for movement relatively thereto across the table, the punch mechanism comprising a hollow cutting punch, and means for reciprocatin... | 07/27/1976 |
