Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS383200 A
Publication typeGrant
Publication dateMay 22, 1888
Filing dateDec 27, 1887
Publication numberUS 383200 A, US 383200A, US-A-383200, US383200 A, US383200A
InventorsGlaus Weber
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Territory
US 383200 A
Abstract  available in
Images(2)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(No Model.) 2 SheetsSheet 1.

O. WEBER & 'H. SCHNEIDER. PUNGHING AND SHEARING MACHINE.

No. 383,200. Patented May 22, 1888.

WITNESSES:

INVENTOR: 9% BY 11; I

ATTORNEYS.

UNITED STATES PATENT Orrrcn,

CLAUS \VEBER AND HENRY SCHNEIDER, OF PARKER, DAKOTA TERRITORY.

PUNC'HING AND SHEARING MACHINE.

SPECIFICATION forming part of Letters Patent No. 383,200. dated May 22, 1888.

Application filed December 27, 1887. Serial No. 259,055. (No model.)

T0 at whom it may concern:

Be it known that we, CLAUS YVEBER and HENRY SCHNEIDER, of Parker, in the county of Turner and Territory of Dakota, have in vented a new and Improved Punching and Shearing Machine, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved punching and shearing machine adapted for universal use.

The invention consists of a series of differ ent'sized punches and a shear adapted to be engaged alternately at their heads by a link pivotally connected with a lever fulcrumed on a longitudinally-sliding bar held above the punch and shear heads. I

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improvement. Fig. 2 is an enlarged vertical crosssection of the same on the line :0 a: of Fig. 1, and Fig. 3 is a like view of the same on the line y y of Fig. 1.

The frame A is provided with two standards, B and 13, connected with each other at their lower ends by the bars 0 and C, each having a shoulder, 0 at its inner edge. In the recess formed by these shoulders the dies D, provided with the conical apertures D, are held in place on the said bars O and O by a set-screw, D screwing in one of the said bars and against one side of each die D.

The central apertures of the dies .D vary in size, and are engaged by punches F, which correspond in size, and are held above the said dies D and provided with shanks F, adapted to slide vertically in the apertures E, formed in the longitudinal beam E, secured to the standardsBandB. Eachof thepunch-shanks F is provided with a head, F, adapted to be engaged by a correspondingly'shaped holder, G, secured to the lower end of a link, G, pivotally connected at its upper end with the short end of a lever, H, fulcrumed at H in a projection, J, secured on the bar K, adapted to slidelongitudinally in suitable bearin gs formed in the upper ends of the standards B and B. Between the lugs or projections J on the bar K is formed a slot, J, through which said link G passes, and the said slot J is made large enough so as to permit of passing one of the punches F, with its shank F and head F, through said slot in case of changing said punch.

The long end of the lever H carries a link, L, provided with a slot, L, through which passes a bolt, N, held on the arm 0 of the bellcrank lever O, fulcrumed at l? to one outer end of the bar K. The other arm, 0 of the bellcrank lever is formed into a handle for operating the lever H and the punches F, as hereinafter more fully described. The top edge, 0, of the arm 0 of the bellcrauk lever 0 is curved, and is adapted to engage the lower curved edge of the long end of the lever H, for the purpose of raising said long end of the lever H and depressing its short end,which can ries the link G. The link L serves to move the long end of the lever H downward and its other end, carrying the link G, upward,

At one end of the bar K, at its bottom edge, is formed a rack, Q, meshing into a pinion, R, secured on the shaft R, having its hearings in the standard 13 and provided with a crankarm, S, for turning the said shaft R and its pinion B, so that the bar K is moved longitu dinallyinits hearings in the standards Band B.

One of the shanks F, instead of carrying a punch, F, is connected pivotally with the free end of the shear-arm T, fulcrumed at T to the standard B and operating on the fixed shearblock U, held on the longitudinal bars 0 and G by means of the set screws U, as shown in Figs. 1 and 2. The shanks F, carrying the punches F and the shear-arm T, are heldin an uppermost position by means of the spring V engaging with one free end a shoulder, F", formed on each of the said shanks F. Each spring V is secured tothe rear end of an arm, V secured to the longitudinal beam E, and its lower end extends downward and forward under the respective punch F, being forked, so that the said punch F will pass downward between the tines of the said fork of the end V of the spring V. A set-screw, V screwing on the arm V, serves to adjust the height of the spring V, so as to bring all the heads F in line.

The operation is as follows: By turning the crank-arm S the operator is enabled to move the bar K longitudinally in the standards B and B, so that the holder G, held on the link G, can engage one of the heads F of the shanks F, carrying the punches F and the shear-blade T. When the holder G has engaged one of the heads F, as shown in Figs. 1 and 2, and the operator moves the arm 0 of the bell-crank lever O backward in the direction of the arrow a,the other arm,O,acting with its curved part 0 on the curved bottom H of the lever H, causes the long arm of the said lever to swing upward and its short arm to swing downward, whereby the link G and the holder G are also moved downward and press the shank F, carrying the punch F downward through the plate to be punched and held on top of the respective die D. The punch F thus punches a hole in the plate held on the die D and the punched-out part of the plate passes into the respective central aperture, D, of the die D. The punched-out part drops out of the die D, on account of the conical shape of the aperture D. When the operator moves the arm of the bell-crank lever O in the inverse di-' rection of the arrow to, its other arm, 0, acts by means of the bolt N on the link L and pulls the long end of the lever H downward, thus raising the short end of the lever H with the link G and the holder G, and as the latter engages the respective head F" of the shank F the latter,with its punch F, is raised out of the die D and the punched plate. The latter is prevented from moving upward when the punch F is backed out by the forked end V of the spring V. The several punches F and their respective shanks F and heads F are always held in their highest positions by the springs V, which are compressed on the down ward movement of the holder G, as above de scribed.

When the operator desires to cut a plate, he places it between the stationary shear-block U and the shear T, which is held in its upper most open position by the spring V pressing against the shoulder F of the shank F, connected with the short arm T. WVhen the operator now desires to cut, he first turns the crank-arm S so as to move the bar K longitudinally until the holder G engages the head F of the last shank F, and then moves the bellcrank lever O,with its arm 0 in the direction of the arrow a, as above described, so that the shank is pressed downward, thereby impart ing a swinging downward motion to the sheararm T, which thus cuts the plate held on the shear-block U.

It will be seen that the operator is enabled to punch different-sized holes on this machine, and he can vary the shape, size, and form of the different punches F to suit the holes he de- Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a punching and shearingmachine, the combination, with a series of different sized punches and corresponding dies, of a holder adapted to engage successively the heads of the said punches, a lever for operating the said holder, a longitudinally-sliding bar on which the said lever is fulcrumed, and means for operating said bar, substantially as shown and-described.

2. In a punching and shearing machine, a series of differentsized punches, corresponding dies, a shear-block, and a shear-arm, in combination with a holder adapted to engage successively the heads of the said punches, and also the head of the shank pivotally connected with the said shear-arm, a lever for moving the said holder up and down, and a bar adapted to slide longitudinally, and on which the said lever is fulcrumed, substantially as shown and described.

3. In a punching and shearing machine, a series of different-sized punches, corresponding dies, a shear-block, and a shear-arn1, in combination with a holder adapted to engage successively the heads of the said punches, and also the head of the shank pivotally connected with the said shear-arm, a lever for moving said holder up and down, and a bar adapted to slide longitudinally, and on which the said lever is fulcrumed, and a bell-crank lever fuleru mod on the said sliding bar and connected with the long arm of said lever, substantially as shown and described.

4. In a punching and shearing machine, the eombination,with a frame provided with stand-- ards, of a bar held to slide longitudinally in the said standards,a bell-crank lever fulcrumed on the said bar, a lever pivotally connected with the said bellcrank lever, and also fulcrumed on the said bar, a link connected with the said lever, and a holder held on the said link and adapted to engage the heads of the punches and the shear arm to be operated on, substantially as shown and described.

5. In a punching and shearing machine, the combination ,with a frame provided with standards, of a bar held to slide longitudinally in the said standards, abellcrank lever fulcrumed on the said bar, a lever pivotally connected with the said bell-crank lever, and also fulcrumed on the said bar, a link connected with the said lever, a holder held on the said link and adapted to engage the heads of the punches and the shear-arm to be operated on, and a rack formed on the said bar, a pinion meshing into the said rack, and a crank-arm turning the said pinion, substantially as shown and described.

6. In a punching and shearing machine, the combination, with a frame provided with a longitudinal beam having aseries of apertures, of shanks held to slide vertically in the said apertures of the said beams and carrying the punches, a shoulder formed on each of the said shanks, and a spring secured on the said beam and engaging with its free end the said shoulder so as to hold the said shank in its nppermost position, substantially as shown and described.

7. In a punching and shearing machine, the combination, with a frame provided with an apertured longitudinal beam, of a shank held to slide vertically in one of the said apertures, a shear-arm pivotall y connected with the said shank and fulcrumed on the said frame, a shear'block held on the said frame and operating in connection with the said sheararm, and a spring secured to the said longitudinal beam and engaging with its free end a shoul der formed on the said shank, substantially as shown and described.

8. In a punching and shearing machine, the combination, with the bar K, a sliding punchshank, and a holder for engaging said shank, of the lever H, pivoted to the bar K and having its short arm connected to said holder, the bell-crank lever O, pivoted to the said bar K and having its short arm 0 projecting under and resting against the long arm of the lever H, and the slotted link L, pivoted to the'long arm of the lever H and to the short arm of the bell-crank lever O, substantially as herein shown and described.

9. In a punchingand shearing machine, the combination, with a shank having a head and adapted to slide vertically in suitable bearings, of a holder adapted to engage the said head, a link carrying the said holder, a lever pivotally connected at its short end with the said link, a slotted link pivotally held on the long end of the said lever, a bell-crank lever carrying on one of its arms a bolt engaging the slot of the said slotted link, said arm of the said bell crank lever being also adapted to engage with its curved edge the curved bottom of the long end of the said lever, and a bar adapted to slide longitudinally and carrying the pivots for the said bell'crank lever and the said lever, substantially as shown and nescribed.

OLAUS WEBER. HENRY SCHNEIDER. \Vitnesses:

RATHBUN O. ToUsLEY, VALE P. THIELMAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3428097 *Jul 20, 1966Feb 18, 1969Schaefer Otto WWire straightening and cutting mechanism
US3497261 *Mar 7, 1968Feb 24, 1970Schares Hermann JosefJoint cutting machines
US4246771 *Jun 5, 1978Jan 27, 1981Covill John WCrimping tool having dual purpose ram
US6688199Jun 29, 2001Feb 10, 2004Acco Brands, Inc.Four-bar upright punch
US7584878Sep 8, 2006Sep 8, 2009Acco Brands Usa LlcPaper tool drive linkage
US7942298Jan 9, 2009May 17, 2011Acco Brands Usa LlcPaper processing tool with force reducing drive arrangement
US8122805Dec 12, 2007Feb 28, 2012Acco Brands Usa LlcPaper processing tool with three-lever actuation
Classifications
Cooperative ClassificationB26F1/04