US1251101A - Cutter. - Google Patents

Description

' 1. T. QUIGLEY.

CUTTER.

APPLICATION FILED DECl 8. i915.

1,251, 101 Patented Dec.'25,1917.

da? gs.

UNITED STATES PATENT onirica.

JOHN T. QUIGLEY, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO COSTMETER COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

CUTTER.

Specification of Letters Patent.

Patented Dec. 25, 1917.

To all whom t may concern:

Be it known that I, JOHN T. QUIGLEY, a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Cutters, of which the following description, in connection with thel accompanying drawings, is a. specification, like characters on the drawings representing like parts.

This invention relates to cutters and its purpose is to provide a cutting implement with which material can be quickly and accurately cut in straight lines.

My invention will be best understood by referring to the following description taken in connection with the accompanying drawings showing an illustrative embodiment of my invention, wherein- Figure l is an edge View of the cutter;

Fig. 2 is a plan view of the cutter opened viewed from the right of Fig. 1;

Figs. 3 and 4 are views respectively of the inner and outer sides of the guide at tachment.

The ordinary and most convenient form of hand-cutting tool for light materials is a. pair of scissors or shears. The construction of this implement, however, is such that it is almost impossible to cut with them in a reasonably accurate straight line.

This defect is commonly noticed when an attempt is made to cut several superimposed sheets of paper. It is then found that while a ruled line on the upper sheet may with care be followed that the under sheets are invariably pulled away and have a curved or -iagged edge. It may readily be demonstrated that, if a. sheet or strip of paper is firmly held at its ends, a cut across it will always turn out from the. perpendicular although the cut may be very short.

In my Patent No. 1,080,165 dated Dec. 9, 1913, I have disclosed a system wherein a record of the cost of an operation is obtained by marking off a length of paper tape the linear dimensions of which directly measures said cost. In the use of the system a record tape is obtained bearing thereon marks pertaining to several operations orl rather, representing in itself the sum of the costs of the several operations. The pieces of tape from several recording machines are brought together, cut into pieces representmg separate operations, the pieces relating to a `given piece of work collected and collated with a linear scale lof money value, this collation at once measuring and com puting the cost of the operation.

It will Ybe apparent that it is necessary to cut the tapes exactly at right angles totheir length if accuracy is desired. In the practical construction of machines to carry out this system a dollar in money is represented by 6.288 (twice pi) inches so it will readily' be seen that slight inaccuracies in the cutting appreciably effect theaccuracy of the computation.

Therefore, while my invention is susceptible to 'many variations and capable of many uses, it is particularly desirable to employ it in connection with such a system and I shall here explain an embodiment thereof adapted fo-r such a use.

In the specific embodiment of the invention chosen forillustra-tion I have shown a cutting implement which might be of various forms but whichis here shown as a pair of scissors 1 having the relatively movable blades 2 pivoted together at 3. A .guide 42 to determine the. angular presentation to Jthe blades of the material to be cut is associated with the implement'. and I have here shown it as a separate member secured to one of the blades 2. Obviously the guide i might be fastened on in various ways but I illustrate one in which there is provided a carrying member or ange 5 secured to the side of the blade. This member 5 is preferably concaved as shown at 6 to fit the:

blade and is provided with a slot 7 and lugs 8. A strap 9 is riveted across the lugs 8 and forms a recess to receive the point of the blade. The slot 7 receives the pivot pin 3 and is held by the nuts thereof. It will be apparent that a member such as described can be readily slipped on to the blade from the point and quickly secured in place. The lugs 8 also subserve another function which will be explained later.

Extending from the carrying member 5 at any desired angle according to the users purpose but generally as shown at a right angle, is the guide proper l0. This may conveniently be secured by providing the carrying member 5 with an integral flange 11 here shown as channeled with the side flanges 12. The guide member 10 may have any suitable form but as shown is a channeled member tting into the channel l1 and having a bottom forming a supporting plate 18 preferably disposed substantially flush with the edge of the blade and lateral Vflanges 14 one or both of which serve as guides.

In the use or the cutter with paper tape such as 1 have referred to the channel is made a little wider than the tape to be cut. The scissors are held in the usual way in the right hand and the tape fed lengthwise through the channel with the other hand, the thumb holding it against the supporting plate 123 with the edge resting against the nearer flange 14e. The tape is consequently held absolutely perpendicular to the blades and a straight line cut at right angles to the edge is assured.

On reference to Fig. 2 it will be noted that the lug 7 which extends inwardly lies in the path of the opposite blade. The parts are so proportioned that when the edge ot that blade has moved past the guide, completely severing the paper, it contacts with this lug which acts as a stop. Any useless eilort in cutting is therefore avoided and the blades not being completely closed are easier to open again. The lug also prevents the use of the scissors t'or other purposes which might tend to impair their accuracy for the specific use for which they are intended.

It will be noted that the illustrative embodiment shown is a cutter which is essentially a hand tool. By this I mean not only a tool which is worked by hand instead of by power but one that is readily taken up and applied to its purpose by the hand in contradistinction to one that is secured to or placed on a support and manipulated. rlfhus, for example, when used to cut record tapes of the kind referred to the operator can move her hands and drop the pieces cut oil into convenient piles or into compartments, asserting them as she cuts them. 1 do not wish to be understood as implying that my invention is in all respects limited to such a tool but desire simply to point out that this aspect thereof is an important one. The device is simple, not cumbersome and provides for rapid and accurate cutting of material in straight lines and, if desired, at right angles to its edge.

Having described one specific embodiment of my invention, which it will be understood is susceptible ot variation therefrom within its scope, what I claim and desire to secure by Letters Patent is 1. A hand tape cutter for severing a tape strip into portions at right angles to its length, comprising a pair of hand scissors having relatively movable shearing blades and having gripping devices by which the blades are both manually held and closed on each other, and a channeled tape guide attached to one blade and having opposed, parallel guiding anges extending at right angles to the line of shearing cut adapted to guide opposite edges ot the tape whereby a tape strip may be guided through the channel with one hand and severed along parallel, transverse lines by the scissors while the latter are held in the remaining hand.

2. A hand tape cutter for severing a tape strip into portions at. right angles to its length, comprising a pair of hand scissors having relatively movable shearing blades and having gripping devices by which the blades are both manually held and closed 0n each other, and a. tape guide attached to one blade and having a supporting plate and parallel guiding walls at opposite sides of the plate at right angles to the line of shear* ing cut, said guiding walls being separated by substantially the width of the tape to be cut, whereby a tape may be m-oved along the supporting plate in successive steps while guided by said guiding walls and severed along parallel, transverse lines by the scissors while held by the gripping devices.

3. A. tape cutter comprising a pair of hand scissors having relatively movable shearing blades and an attachment therefor comprising a member adapted to be secured to one blade and having a flanged guide projecting therefrom to control the angular presentation ot the tape to the blades, said member having a terminal enlargement presenting a recess to receive the end ot the blade and projecting in the path of the other blade to form a stop for the same when it has passed the guide and means to secure the other end oir' said member.

1n testimony whereof, 1 have signed my name to this specification, in the presence of two subscribing witnesses.

JOHN T. QUIGLEY. l/Vitnesses:

ROBERT H. KAMMLER, E. EDNA SPUF.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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