US2009502A - Shears - Google Patents

Description

July 30, 1935. E. c. LAMBERT 2,009,502

' SHEARS Filed Sept. 8, 1934 Jwoentoz Earl afiamzerii Patented July 30, 1935 I l V I UNITED STATES P-ATENTQOFFICE, 2,009,502

' snEAns Earl C.' Lam bert, Application September's, 1934, serialn nazss v1 Claim. roi. 20-13) The present invention relates to shears or scis oeive the fingers of the hand, oneof said loopsv or. sors and more particularly, to barbers shears eyes being provided with a hook-shaped extenwherein the blades are detachablyconnec-tedto sion 4. The opposite ends of each handle-meme. the handle of the shears, in order that re-sharp-' ber are enlarged and of substantially rectangular- 5 ened or new blades may be immediately and Configuration in plan view, having .a flattened. 5 readily connected, thus permitting the handles surface 5 at the'normallyoutersideuthereofi and to be used indefinitelyv or' until they become adapted tobe pivoted ntogetherp. The oppositebroken, materially reducing the costthereof, as face or normallyinner side of thisspivot end, of the blades which are subject to wear may be. each handle is provided with arecessG also. of

readily and easily replaced. o rectangular configurationand having two oftits: 10

It is the primary object of the present invensides open, leaving :anabutting end shoulder-pr; tion to provide shears of the character afore- Wall land a projecting flange 8-.which extends said in which the handle members. aremade of, at right angles to'the shoulder I. This pivot end one grade of materiaL-and the blades made of of eachlhandle is provided witha medially ara diiferent or more expensive grade of material, ranged opening 9 through which is adapted to 15 thereby giving unto the user of the shears, more extend the pivot bolt or screw 10, which latter efficient cutting blades at a much reduced cost. pivotally connects the handlestogether. 7

It is likewise another important object of the The blades H of this shear are to be of stand- 7 present invention to provide shears of this charard formation whereby they may be readily subacter with an improved and more rigid connection stituted for either handle of the shear. Each 20 between the blades and the handles therefor, consists of a flattened substantially straight end whereby new cutting blades may be readily subportion, as is indicated at l2, which'is adapted stituted and when connected to the handles, will to be seated within the recess 6 formed in the be so connected as to hold the blades firmly and pivot end of either one of the handles l or 2.

5 rigidly to the handles, as if each handle and blade This end portion l2 of the blade is provided with therefor were made from an integral piece of an elongated slot I3 which is adapted to register metal. intermediately with the opening 9 of the handles,

Other objects of the invention will be in part whereby the pivot bolt l0 may extend thereobvious and in part pointed out hereinafter. through. The elongated slot I3 is adapted to be In order that the invention and its mode of engaged with corresponding projections pref- 30 operation may be readily understood by persons erably formedbodily with the normally inner skilled in the art I have in the accompanying surface of the pivoted ends of the shear handle illustrative drawing, and in the detailed followmembers and disposedon each side of the pivot ing description based thereon, set out several Op W e the extreme pp end P possible embodiments of the same. tions of said slot are made to register with a pair 35 In the drawing: of screw threaded openings l5, formed in the Figure 1 is a side elevation of the shears empivoted end portion of the handles and adapted bodying the present invention; to receive the set screws l6. These set screws 16 Figure 2 is a perspective disassembled view of are adapted to have threaded engagement with 40 a portion of one of the handles and its blade, the openings formed correspondingly within the 40 together with the means for forming a connection opp s pivoted handles in Order that the Cutting therebetween; blades may be attached thereto; The cutting Figure 3 is a cross section taken along line blades pr extend from d are f d n- 33 of Figure 2; tiguous with the flattened end portion [2 and,

5 Figure 4 is a similar sectional view, taken along of Course, y be of a le th Suitable for the line 44 of Figure 2, and handles to which they are to be attached. These Figure 5 is a section taken along line 5-5 of ad s are p bly st a ht and pr vided with Figure 1. a cutting edge l1, being tapered towards their Referring now more particularly tothe accominner ypanying drawing wherein like corresponding Formed upon that portion of the blade diamet- 50 parts are designated by similar reference charrically opposite the cutting edge I! thereof is an acters throughout the several views, I have hereofiset projection I 8, which, as more clearly shown in shown a pair of shears, such as are employed in Figures 1 and 2 of the drawing, is made to exby barbers and composed of two handles I and 2, tend substantially throughout the entirelength I having loops or eyes 3 at their free ends to reof the blade. Upon reference to the drawing, it 55 before described. In this manner, the shears be manufactured at a greatly reduced cost and yet give the purchaser shears to which new cut ting blades may be easily and readilyconnected.

should the latter become worn or broken.

In providing the projecting flanges or shoulders 1 and 8 upon each pivot end of a handle adapted to receive the correspondingly shaped end llof each blade, and by forming upon the relative parts of the handles and blades cooperating projections and recesses therefor, it is obvious that when the pivot bolt or screw l0 ex-' tends therethrough, a. rigid connection. is estab-. lishedibetween'each handle and its blade. Small set screws. l4 are: employed for attaching each blade 'toits'handle, but the set screws would not be capable of establishing a permanent and rigid connection between the blades and the handles therefor, if itwere not for the projecting flanges.

or 'shoulders and I, and the cooperating engageable projections andrecesses l3, l4 and l8"; 19,

respectively. Therefore, it will be seen that the set screws I4 are only connecting members between each blade and its handle, whereas the real shearing forces between the blade and its handle are transmitted through the shoulders or flanges and cooperating locking projections and recesses.

Manifestly, the construction herein shown is capable of considerable modification and such modifications as come within the scope of my claim, I consider within the spirit of my inven- I' claim:

A pair of shears comprising pivoted handle members, the pivoted end portions of said handle members being enlarged and having each a recess therein, blade members the inner ends of which are fastened to conform with the recesses in the enlarged ends of the handle members and having two faces thereof to lie flush with corresponding walls of said recesses, a detachable pivot member extending through pivot openings formed in the enlarged pivot ends of said handles, elongatedprojections formed bodily with the normally inner surfaces of. the pivoted ends of said handle members and disposed parallel to the longitudinal axis and abutting, each with one end on the pivot or the aperture thereof, said blade members having each an elongated slot for receiving the projection'formed with its companion handle member and said detachable pivot member and set screws arranged at the opposite sides of said detachable pivot memberfor detachably connecting said blade members to the pivoted end portions of said handle members.

' EARL C. LAMBERT.

Images