US516225A

US516225A - Fourths to christopher a

Info

Publication number: US516225A
Authority: US
Publication date: 1894-03-13
Anticipated expiration: 1911-03-13

Description

(No Model.)

' -F. J. PERKINS..

WOOD S URAPER.

No.- 516,225. PatntedMar. 13, 1894.

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UNITED STATES,

FRANKLIN J. PERKINS OF WOBURN, MASSACHUSETTS, ASSIGNOR OFTHREE- FOURTHS TO CHRISTOPHER A. BLACKBURN, OF SAME PLACE- WOOD-SCRAPER.

SPEGIFICATIONforming part of Letters Patent N 0. 516,225, dated March 13, 18 94.

Application filed September 14. 1893- Serial No. 485.447. (N model.) I

To aZZ whom it may concern:

Be it known that I, FRANKLIN J. PERKINS,

. a citizen of the United States, residing at Woburn, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Wood-Scrapers, of which the following is a specification, reference being had therein to the accompanying drawings.

In finishing floors and other wooden surfaces a scraper is frequently employed. The

blade of the scraper which comes in contact with the wood is usually made from a flat piece or plate of steel which is sharpened at one edge. For effective work this blade should be held at an angle to the surface of the wood, the line of the end of the scraper forming on one side thereof an acute'angle with the surface of the wood and on the other an obtuse angle. The blade of the scraper moves When doing its work in a direction opposite to that in which a cutting blade, as for example, that of a plane, moves. 7

It is desirable in finishing floors and the like, that the blade of the scraper should project in such a manner that itmay be employed in corners or close to the edge of the floor at the wall.

My invention has for its object to provide a scraper which maybe conveniently held at the proper angle in such manner that the workman may exert his full strength on the implement and which may be used over the whole of the surface to be scraped as well at the corners or edges as upon the other portions and it consists in the device which is hereinafter more fully set forth, and the novel features of which are pointed out in the claims which are appended hereto and made a part hereof.

I have shown my device in the best form now known to me in the accompanying drawings in which Figure 1 is a side elevation. Fig. 2 is a plan view. Fig. 3 is a lengthwise section on line 3-3 Fig. 2. Fig. 4 is a plan view of the device with the upper handle and blade removed. Fig. 5 is a plan view of the upper handle and its supporting frame attached. Fig. 6 is an end-view thereof.

same side as the blade as shown atg to form a support for the hand, and to prevent the hand from slipping when the scraper is turned towardthe user. This downwardly projecting portion 9 is also preferably of sufficient length so that'when it rests on the fioor or surface being scraped, the portion f of the handle will bea sufficient distance from the floor to permit it to be grasped by the hand without the fingers coming in contact with the floor. When used in this way, the end of the part g will slide on the floor and greater pressure and force may be exerted by the workman. The length of the part g should also be such that when it rests on the floor the scraper-blade will be at the correct angle with the floor for the most effective work. In this way the downwardly projecting end 9 of the handle serves not only to give the workman a better grasp on the handle, but also serves to raise the handle a proper distance from the floor to protect the fingers of the workman, and also to set the blade at a proper angle for the most elficient work. The under side of the handle f is rounded preferably and its upper side is hollowed out as shown at h to reduce the weight of the implement and to lessen its cost. The part at of the holder which is provided with the handle f as previously stated, is preferably forked at its forward end as shown, Fig. 4, the forward ends of the forks being connected by a cross portion j. This is provided on top with two or more screw holes is in order that the other part of the holder may be secured thereto. The part j is extended slightly at either end, and the face l thereof formed on a bevel, the angle of the bevel corresponding with the angle which the blade is to form with the floor, when the handle 61 is The ends of the part in a horizontal position. j are beveled on their rear sides as shown at m to form cam surfaces which receive correspondingly beveled projections n, on the other part 19 of the holder. The part 1) of the holder is adapted to fit over the top of the part j and over the face Z, thereof, and it is provided at either end with rearwardly and downwardly projecting parts n which fit on the beveled portions m of the ends of the part j so that the blade a. of the scraper may be placed between the face land the corresponding downwardly projecting portion of the part 1) and securely held, the part p being secured on the part j by means of screws g which pass through the part 19 and into the holes 70 in the part j. The holes in the part p through which the screws q passare slightly larger than the screws so that as the screws are set down, the arms n which co-act with the bevels on may slides lightly on said bevels and thus act to wedge the blade at between the facel and the corresponding portion of the part 19 thus securing the blade firmly in place. At the ends of the part 19 and projecting upwardly therefrom are the curved arms 75 which serve as supportsfor the upper handle 8. The upper handle 8 may be of wood or other suitable material and is of a shape to permit the operator to grasp it securely; or the handle 5 may be of metal and may be cast integral with the part 19 of the holder. The holder is preferably cast in two parts, namely the part p and the part (1.

The device is simple in construction and may be readily taken apart or put together in case it is desired to remove the blade and put another in its place.

The handle 8 is located almost directly over the blade 0, and this is important since power may be applied at that point with greatest efficiency. In use, the workman would ordinarily grasp the handle f with the left and the handle 3 with the right hand, thus obtaining the full power of both arms and enabling him to do the work more speedily and easily than with any otherimplement of this kind now known to me.

Since the blade at projects from the holder and is, at or near the scraping edge, wholly clear of and free from a frame or similar part, any work may be done with the implement which may be done if the scraping blade alone were held in the hand of the workman, and this is important since all scraping implements, the blades of which are surrounded by a frame or holding part after the manner of a plane, are objectionable, because the frame interferes with the blade not only when working in corners but also when working upon a surface which is not perfectly flat since the blade in such an implement cannot get into slight depressions.

What I claim is- 1. A scraper comprising a blade, and a holder for the same, consisting of two parts, each of which is provided with a handle, each of said parts also havingafixed beveled face between which beveled faces the blade is held and means for securing the said two parts together and thereby clamping the blade in place, substantially as set forth.

2. A scraper comprising a blade and bolder consisting of two parts having opposing surfaces between which the blade is placed one of said parts having cam portions m and the other of said parts having portions n for engaging said cam portions, and securing devices for securing the two parts of the holder together whereby as the securing devices are tightened the blade will be firmly gripped and held in consequence of the action of the cam portions m upon the engaging portions n substantially as set forth.

'3. A scraper comprising a blade and a holder, said holder having a rearwardly extending portion provided with a handle and having a portion rearwardly of the handle extending on the same side as the blade and to such an extent as to constitute a gage and hand-hold substantially as and for the purposes set forth.

4. The combination in a scraper with the blade 0, of a holder comprising a part d, having a beveled face Z, and beveled portions m, a part 19 having beveled projections 91, and securing screws (1, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANKLIN J. PERKINS.

Witnesses:

WM. A. MACLEOD, A. H. MoRRIsoN.