US745516A

US745516A - Paper-cutter.

Info

Publication number: US745516A
Authority: US
Inventors: George W Perks
Original assignee: Webster & Perks Tool Co
Current assignee: Webster & Perks Tool Co
Priority date: 1903-05-13
Filing date: 1903-05-13
Publication date: 1903-12-01
Anticipated expiration: 1920-12-01

Description

110.745,51@ PATENTED 1320.1, 1903.

' G. WfPBRKs; y 'y R0 MODEL.

No. 745,516. I i Patented :December 1, 1903.

' UNITED STATES PATENT trice.

GEORGE W. PERES, OF SPRINGFIELD, OHIO, ASSIGNOR TO WEBSTER do PERKS TOOL CO., OF SPRINGFIELD, OHIO, A PARTNERSHIP.

PAPER-CUTTER.

SPECIFICATION forming part of Letters Patent No. 745,516, dated December 1, 1903- Applioation tiled May 13, 1963. Serial No. 156,915. (No model.)

fo all whom it may concern: The straight-edge is also preferably provided Be it known that I, GEORGE W. PERKS, a with a metal corner-piece e2, which forms a citizen of theUnited States,residing at Springwearingv and guiding surface, and this metal field, in the county of Clark and State of Ohio, corner-piece e2 projects over a portion of the 55 5 have invented certain new and useful Imgroove. The downwardly-projecting part c2, proveniente in Paper-Cutters, of which the which forms the guide or gage for the frame, following is a specification. is preferably undercut, as shown at a3, to My invention relates to paper cutters or forni a groove for embracing the inwardlytrimmers, and especially relates to that class projecting edge e3 of the metal part of the 6o :o of cutters which are intended to operate in straight-edge.

connection with a straight-edge for trimming Attached to the main frame at any suitable the edges of wall-paper and for similar purpoint is a spring o, which presses against the oses. upper surface of the straight-edge and tends The object of my invention is to provide a to hold the main frame in an upright position 65 15 paper-trimmer of simple and practical conwhen on the straight-edge. The frame o'. also struction, one which shall obviate the use of hasa downwardly-projecting flange co4, which. separate adjustable parts which are liable to bears against, the front edge of the straightbecome disarranged or out ofadjustment, edge, so that the top part of the metallic and which shall be economical in construcpiece e2 of the straight-edge is embraced be- 7o zo tion and at the same time effective in operatween the flange o4and the downwardly-protion. I attain these objects by the construcjecting part a?. tions shown in the accompanying drawings, The slotted or undercut portion a3 instead in whichof being straight or of a uniform width Figure lisa perspective view showing a dethroughout its length is beveled, as shown 7 5 2 5 vice embodying my invention in place and clearly in Fig. 5 and in dotted lines in Fig. 2, ready for operation in connection with the the rear end being of considerably wider distraight-edge. Fig. 2 is a rear side elevation mensions than the front end, which permits of the same. Fig. 3 is a transverse sectional the frame under pressure to be tilted downview on the line .fr to in Fig. 2. Fig. 'l is a secwardly and forwardly, so as to bring the cut- 8o 3o tional view of the same on the line y y in Fig. ting blade or disk b below the straight-edge 2. Fig. 5 is a detail view, partly in section, and in contact with the paper or other mateshowing the guide and yielding support. Fig. rial to be cut, this frame in tilting acting in 6 isd a side elevation showing a modification. the nature of a lever fulcrumed by the pro- Like parts are represented by similar letjecting parts of the gage portion, it being un- 85 35 ters of reference in the several views. derstood that such downward pressure will In the said drawings, a represents the main compress the spring c, which when the frame frame of the device, and b the cutting-disk, is released will return the frame and cuttingwhich is journaled on a spindle or arbor b' in blade to their normal positions,with the blade the main frame in any suitable and wellout of contact with the material to be out. 9c

4o known manner, but preferably formed screw- A suitable handle or thumb-piece o5 is prothreaded, as shown in Fig. a, and provided vided to manipulate the cutter in operation. with a nut b2, by means of which proper ad- The offset or gage portion e' of the frame justinent can be secured. This main frame may be cast integral, if desired, with the main n. is recessed to receive the'cutting-disk b body a; but the part o2 is preferably formed 95 45 and is provided with an odset portion a', in a separate piece, as shown in the drawings, which forms a guide or gage, but which is and secured by suitable fastening-screws ofi. preferably formed integral with the frame. The makingof this part in two pieces is This oset portion o has a downwardly-prodeemed more expedient for the purpose of jecting part 0.2 to tit in the groove of the manufacture, and it also permits a certain roo 5o straight-edge, the straight-edge being shown amount of adjustment for wear if the same in Fig. l at e and provided with a groove e'. l be needed, the screws being removed and a part of the metal removed by ling or other- Wise to make a more close adjustment. Y

In Fig. 6 I have shown a modification in the means for attaching the spring. In this case the spring c is attached to a lug a7, offset at the upper and forward portion of the frame. Itl is obvious that the spring might be attached in various Ways and correspondingly varying its shape to suit its location.

Having thus described my invention, I claim- 1. The combination with a rotary cutter and a supporti ng-frame therefor, of a gage portion immovablysecured to saidframe and adapted to form a fulcrum therefor upon which said frame is tilted to move said cutter in a vertical plane coincident with the line of travel of said cutter.

2. The combination with a rotary cutter and asupportng-frame therefor, of a gage portion immovablysecured to said frame and adapted to form a fulcrum therefor upon which said frame is tilted to move said cutter in a vertical plane coincident with the line of travel of said cutter, and a spring to return said frame and cutter to normal position after the same have been depressed.

A3. The combination With arotary cutter and a recessed frame in which said cutter is journaled, of a gage portion immovably secured to said frame and having a groove therein a Wall of which forms a fulcruln upon which said frame is tilted to move said cutter in a vertical plane coincident with the line of`travel of said cutter.

4. The combination with a cutter and a frame therefor, of a gage portion rigidly secured thereto having a tapered groove therein extending in the line ot' travel, a wall of Which forms a fulcrum upon Which said frame is tilted, and a spring to return said frame and cutter to normal position after the same have been depressed.

5. The combination with a straight-edge having a groove and an inwardly-extending ange, of a cutter and a supporting-head for said cutter having a gage portion rigidly secured thereto extending into said groove, and a groove in said gage portion to loosely engage said flange a wall of said groove forming a fulcrum upon which said frame is tilted to move said cutter in a vertical plane coincident with the line of travel of said cutter.

6. The combination with a straight-edge having a groove and an inwardly-extending flange, of a cutter and a frame to support said cutter having a gage portion immovably secured thereto extending into said groove and a groove in said gage portion tapered in the direction of its line of travel a wall of Which is adapted to engage said -iiange and form a fulcrum upon which said frame is tilted, and a flat spring to yieldingly support said frame.

In testimony whereof I have hereunto set my hand this 8th day of May, A. D. 1903.

GEORGE W. PERKS.

Witnesses:

PERCY NORTON, CHAS. I. WELCH.