US1170319A - Floor-scraper. - Google Patents

Description

W. A. PAPWORTH.

FLOOR SCRAPER.

APPLICATION FILED Arms, 1912.

1, 170,31 9. I v Patented Feb. 1, 1916.

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I fly THE COLUMBIA PLANOKZRAPH C L. WASHINGTON D c UNITED STATES PATENT ()FFI CE.

WALTER A. PAPWORTH, 0F SYRACUSE, NEW YORK, ASSIGNOR TO E. C STEARN$ &;

COMPANY, OF SYRACUSE, NEW YORK.

FLOOR-SCRAPER.

Specification of Letters Patent.

Patented Feb. 1, 191 6.

Application filed April 8, 1912. Serial No. 689,298.

To all whom it may concern:

Be it known that I, WALTER A. PAPwoR'rH, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented a new and useful Floor-Scraper, of which the following is a specification.

My invention relates to improvements in a class of tools in which a scraper blade is adjustably attached to a handle and has for its objects the provision of a strong and serv iceable tool of few parts having a universal ball and socket adjustment between the blade and the handle.

A further object is the provision of a universal ball and socket joint capable of.

being rigidly clamped in any position, composed of fewer parts than has heretofore been considered necessary for a device of this kind, and yetcapable of easy assembly.

These objects are attained by the device shown in the accompanying drawings in which Figure l is a perspective view showing my scraper assembled with portions cut away to show interior parts. Fig. 2 s a perspective View of the nut F. Fig. 3 1s a rear view of the scraper with the handle removed showing the method of assembling. Figs. '2 and 3 show the approximate relatlve shape of the parts to accomplish their functions of assembly, swinging, and clamping.

A pair of jaws A and B having portions of their contiguous surfaces substantially flat are drawn together upon the scraplng blade C by a screw D. In the rear jaw A a substantially spherical socket E is formed having anopening of somewhat less diameter than the greatest diameter of the socket.- In the socket E is a nut whose shape is, in general, that of a hemisphere but whose sides and top have been cut away just enough to allow it to be slipped into the socket E when it is turned to just the proper position. There is a threaded hole S through the said nut F so located and directioned that when a rod is passed through the mouth ofthe socket and screwed into the hole in the nut, the latter cannot be turned to the position which permits it to pass through the mouth of the socket, although it has a considerable freedom of motion in any direction.

G is a screw long enough to pass completely through the nut and clamp against the opposite side of the socket and pinned into the handle H with a pin I.

In operation, a scraper blade is clamped between the jaws, the scraper is seized by the handle with one hand and drawn over the floor or other object to be scraped, down ward pressure meanwhile being brought to bear by the other hand on top of the jaws A and B. In case either the nature of the wood or the cutting edge of the scraper are such that a greater or less inclination of the blade would improve the cutting, the handle is loosened, moved to any desired angle and rigidly clamped by a slight twist of the handle.

In scraping floors near walls, posts, or other obstructions the handle may be thrown over sidewise at an angle to enable the operator to conveniently manipulate the tool without scraping his knuckles.

Having thus described my invention 1' claim as new: 7

A tool comprising a member provided with a socket having an opening communicating therewith through an integral wall and of lesser diameter than the socket interior, a clamping nut of a form to permit of its entering the socket through said open ing and to assume a position within the 'socket'to span said opening, said nut having an aperture registering with said opening when the nut is turned into said spanning position, a handle element and a screw shank on the handle element fitted to the nut aperture'andadapted to exert a force onithe nut to effect a clamping engagement of the-nut and socket, to secure the parts I Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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