US1632284A - Shears - Google Patents

Description

June 14, 1927- A. GARD lNER SHEARS Filed July 9, 1923 r e m m G r a m A WITNESS:

Patented June 14, 1927.

UNITED STATES 1,632,284 PATENT. OFFICE.

ARTHUR GABDIIJER, OI MIDLAND JUNCTION, WESTERN AUSTRALIA, AUSTRALIA.

BHEABS.

Application fled m 9, 1923. Serial No. 850,551.

The object of my said invention is the provision of shears or snips designed more particularly for use in cutting tin and other sheet metal and embodying a peculiar and advantageous construction and combination invention consists in the improvement as hereinafter described and definitely'clain ed. In the accompanying drawings, forming part of this specification Figure 1 is an elevation showing one side of my novel shears which have been reduced to actual practice and successfully1 used.

Figure 2 is an elevation of t e opposite side of the same.

Figure 3 is an elevation showing the inner side of one blade of the'shea'rs and the construction adjacent said blade.

Figure 4 is a similar view of the inner side of the'other blade.

Figure 5 is an edge view of the blade shown in Figure 3.

Figure 6 is an edge view of the blade shown in Figure 4.

Figure 7 comprises disassociated views-in cross-section of ,the construction where the blades are pivotally connected together, the section being taken in the plane indicated by the line Z-Y of Figure 2.

Figure 8 is a detail cross-section showing the relative arrangement of the blades when the shears are closed.

Similar numerals of reference designate corresponding parts in all of the views of the drawin The bla es of the shears are designated" A and B, and the handles are designated 1 and 2, respectively-i. e., the handle of the blade A is numbered 1 and the handle of the blade B is numbered 2.

As will be readily appreciated from Figures 1 and 2, one material advantage of my novel shears resides in the fact that the hand of the workman is positioned above the work by the offset in the handles 1 and 2 enabling the workman to cut clear throu h any widt of sheet metal with but little e ort and with no danger of injuring his hand. In this connection it will be noticed that the handles in addition to the offset portions are provided with straight rear portions spaced apart and having inwardly directed end portions 1" and 2*, respectively, adapted when the shears are closed to abut against each other. Another ractical advantage resides in the eculiar joint best shown in Figure 7, said ]0iI1t contributing materially to the strength and durability as well as .to the ease of operation of the shears, and a still further material advantage resides in the blade A being recessed at t e joint, so as to allow the work to pass smoothly across the full width of the blades, the heel of the blade B being rounded off slightly as a clearance, at 3 so 1131s to afi'ord improved results in practice.

3' will-be noted that the blade A is provided for the said joint with an aperture 4, surrounded b a boss 5, and that the blade B is provide with a lateral journal 6 for arran ement in said aperture 4 and boss 5 the ournal 6 being provided with a threade socket 7 to recelve the threaded shank 8 of a headed screw 9 through the medium of which the blades are strongly maintained in connected and r0 er working position. At its outer side t e lade A is reenforced as indicated by 10 in Figure 2, and at its outer side theiblade B is .reenforced as indicated b 11 in Figure 1. The recesses in the bladev at the pint is designated by 12, and is best shown in Figure 5, and by comparison of Figures 5 and 6 it will be noted that the blade B isshaped at the joint to fit and work in the said recess. The outer edges of the blades A and B are lettered M and N, and are preferably shaped as shown in Figures 1 and 4.

Notwithstanding the practical advantages of my novel shears as pointed out in the foregoing, it will be manifest that the particular reference to Figure 7 it shears are simple and inexpensive in construction, are susceptible of being produced as readily as ordinary shears extant, and are well adapted to withstand the usage to which shears for sheet metal are ordinarily subjected.

I have entered into a detailed description of the construction and relative arrangement of the parts embraced in the present and preferred embodiment of my invention in order to impart a 'full, clearand exact understanding of the said embodiment. I do not desire, however, to be understood as confining myself to the specific construction and relative arrangement of parts inasmuch as in the future ractice of the invention various changes an modifications may be made such as fall within the e of my invention as defined in my appen ed claim.

Having claim an 5 181- descrlbed my invention, what I desire secure by Letters-Patent,

Shears including a pair of ofrposed handle members, cutting blades bein aterally offset at the outer ends of said han es, one of said offset portionshaving an internally threaded 1 0 socket project of, an ape from the inner side thereboss formed on the offset portion of the other handle member and adapted receive therethrough the threaded socket to form a pivot for the handles, and a headed screw adapted to be assed through the boss and threaded into t e socket with I In testimony whereof I afiix my signature.

ARTHUR GARDINER.

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