US1009028A

US1009028A - Automatic shearing-machine.

Info

Publication number: US1009028A
Authority: US
Inventors: Edward Brown; Samuel Herbert Martin
Original assignee: MARTIN CORRUGATED PAPER AND BOX Co Ltd
Current assignee: MARTIN CORRUGATED PAPER AND BOX COMPANY Ltd; MARTIN CORRUGATED PAPER AND BOX Co Ltd
Priority date: 1911-03-23
Filing date: 1911-03-23
Publication date: 1911-11-14
Anticipated expiration: 1928-11-14

Description

E. BROWN & S. H. MARTIN.

AUTOMATIC SHEARING MACHINE.

APPLICATION IILED MAR.23, 19111 1,009,028. Patented N0v.14,1911.

Z SHEBT8SHEET 1.

E. BROWN & s. 11. MARTIN. AUTOMATIC SHEARING MACHINE.

APPLICATION FILED MAILZS, 1911.

1,009,028. Patented Nov. 14, 1911.

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COLUMBIA PLANOGRAPH couivnsumaroN, D. c.

UNITED STATES PATENT orro.

EDWARD BROWN AND SAMUEL HERBERT MARTIN, OF TORONTO, ONTARIO, CANADA, ASSIGNORS TO THE MARTIN CORRUGATED PAPER AND BOX COMPANY, LIMITED, OF TORONTO, CANADA, A CORPORATION.

AUTOMATIC SHEARING-MACHINE.

To all whom it may concern:

Be it known that we, EDWARD BROWN and SAMUEL HERBERT MARTIN, both of the city of Toronto, in the county of York, in the Province of Ontario, Canada, have, invented certain new and useful Improvements in Automatic Shearing-Machines, of which the following is the specification.

Our invention relates to improvements in automatic shearing machines and the object of the invention is to devise a machine of this class in which paper or cardboard as it passes through the machine may be cut off into desired lengths without stopping or slowing the machine feed and it consistsessentially of a feeding table provided with a ledger plate and a delivery table suitably supported, a shearing knife and means for imparting a combined downward and longi tudinal movement to the knife so as to impart to the knife a longitudinal draw, a gage device, a clutch operated by the gage device designed to be thrown in by the contact of the card with the gage thereby throwing in the knife operating mechanism as hereinafter more particularly described by the following specification.

Figure 1, is a general perspective view of our device. Fig. 2, is a longitudinal section through Fig. 1. Fig. 3, is a cross section.

In the drawings like letters of reference indicate corresponding parts in each figure.

A is the main frame provided with standards A having vertical slots A B is a longitudinal ledger bar and B is a ledger plate secured thereto.

D is a receiving table.

E is the delivery table having a central longitudinal slot E.

A is a cross bar connecting the top standards A A together.

, F and F are links swung upon the cross bolts F extending through the standards A A and the slots A G is a shearing knife provided with bearing brackets G and G to which the links F and F are pivotally connected by the cross pins H and H. It will be noticed on referring particularly to Fig. 3 of the drawings that the bracket G is slightly lower than the bracket G thereby imparting a slightly inclined set to the shearing knife in relation to the ledger plate B.

I is a series of spiral tension springs Specification of Letters Patent.

Applicationfiled March 23, 1911.

shaft J, and K Patented Nov. 14, 1911. Serial No. 616,495.

connecting the knife G with the cross bar A The tension springs serve to counterbalance the weight of the knife on its return or upward movement.

J is the main driving shaft journaled in suitable bearings J and provided with a driving pulley J J 3 is the operating arm of a clutch designed to throw the driving pulley J 2 into and out of engagement with the shaft J. We do not show the construction of this clutch as any suitable form may be used for this purpose.

K is a crank wheel mounted upon the is the link connecting the crank pin K of the crank wheel K to the cross pin K extending through the end of the knife G.

L is a lever pivotally secured at one end to the main frame of the machine.

L is a link connecting the opposite end of the lever L with the clutch arm J M is the main gage bar adjustably connected to the delivery table by set screws M.

M are lugs forming part of the gage bar and provided with holes M M is a supplemental gage bar provided with end brackets M slidably supported on the edge of the table E.

M are stems extending rearwardly from the gage bar M through the hole M of the main gage bar M.

M are compression springs surrounding the stems M downward between the lugs M and the brackets M M is a central depending socket forming part of the supplemental gage bar M*.

N is a rod extending through the socket M at one end and adj ustably secured therein by the set screw M.

N 2 is a link connecting the opposite end of the bar with the lever L.

Having described the principal parts involved in our device we will now describe the operation of the same. The card or paper is fed in a strip onto the receiving table from which it is fed by suitable means over the ledger plate onto the delivery table until the edge of the card strikes the gage bar M thereby compressing the springs M allowing the gage bar M to recede. This movement of the gage bar M draws the bar N longitudinally and swings the lever L on its fulcrum. This motion of the lever L pulls over the clutch arm J thereby throwing in the clutch and connecting the pulley J 2 to the shaft J. The crank wheel K then forces the link K and knife bar G longitudinally the links F and F carrying the bar downwardly imparting to the knife a downward and longitudinal draw co-acting with the ledger plate to quickly sever the card. The continued motion of the crank wheel serves with the aid of the compression springs I to quickly withdraw the knife out of the path of the card thereby preventing the knife interfering with the continuous feed of the card or paper in the shearing machine.

From this description it will be seen that we have devised a very simple machine whereby card or paper may be cut into any desired lengths without stopping or slowing the feeding of the paper there into.

What we claim as our invention is,

1. In an automatic shearing machine, the combination with the ledger plate, of a swingably supported knife bar and means for imparting a longitudinal movement to the knife bar, of a delivery table, a gage device supported on the delivery table, a clutch arm and means for operating the clutch arm to throw in the knife operating mechanism by the contact of the card with the gage device, as and for the purpose specified.

2. In an automatic shearing machine, the

Copies of this patent may be obtained for combination with the main driving shaft and the clutch arm designed to throw the same in and out of gear, of a delivery table, 7

a gage device comprising a stationary bar 'adjustably secured to the table, a supplemental gage bar, compressible means between the supplemental gage bar and the stationary bar, and connecting means between the supplemental gage bar and the clutch arm, as and for the purpose specified. 3. In an automatic shearing machine, the

combination with the main driving shaft and driving pulley, and a clutch arm for throwing the driving shaft into connection with the driving pulley, of a delivery table, a gage bar adjustably secured to the delivery table, a supplemental gage bar provided with stems extending slidably through the first mentioned gage bar, springs surrounding the stems and extending between the supplemental and first mentioned gage bars, a lever pivotally connected with the frame at one end, a link connecting the opposite end of the lever to the clutch arm, and a link bar connecting the supplemental gage bar to the lever, as and for the purpose specified.

EDWVARD BROWN.

SAMUEL HERBERT MARTIV.

WVitnesses:

B. BOYD, I-I. PRESTON.

five cents each, by addressing the Commissioner of Patents, Washington, I). O.