US935259A - Floor-scraper. - Google Patents

Description

F. M. ISRAEL, FLOOR SGRAPER.

APPLICATION FILED JULY 13', 1907.

Patented Sept 28, 1909.

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FREDERICK M. ISRAEL, OF WORCESTER, MASSACHUSETTS.

FLOOR-SCRAPER.

Specification of Letters Patent.

Patented Sept. 28, 1909.

Application filed July 13, 1907. Serial No. 383,572.

To all whom it may concern:

Be it known that I, FREDERICK M. ISRAEL, a citizen of the United States, residing at lVorcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Floor-Scraper, of which the following is a specification.

Several forms of devices have been invented for the scraping of floors by dragging or pushing along the floor a Weighted frame having a shaving-blade. These have usually been open to one or more of the following objections. In some cases, they have been so constructed that it is necessary to drag or pull them ac 'oss the floor, and consequently they could not reach the wall on either side of the room. Also in some cases a dead weight has been applied to the scraper in order to secure the desired pressure thereon, and there has been no way in which this weight could be adjusted. They have also been of much more expensive construction than is necessary in a simple device of this character.

The principal objects of this invention are to provide a construction which will be simple and inexpensive to make, and which will have substantially no parts which are liable to get out of order, in which the handle will be reversible so that the device may be either pushed or pulled so as to reach the Walls of the room on both sides; to provide means whereby pressure may be transmitted directly from the handle in either one of its positions to the cutting blade, that pressure being of a yielding nature; to provide adjustment for the scraper so as to scrape along the side walls of the room; and generally to improve and simplify the construction and operation of devices of this character.

Reference is to be had to the accompanying drawings which illustrate a preferred form of the invention, and in which F igure 1 is a side view of such a preferred embodiment showing the device in position for pushing across the floor, and also indi eating in dotted lines the position of the handle when it is to be pulled across the floor. Fig. 9. is a similar view showing a form of spring which is desirable when the device is to be pushed. Fig. 3 is a front elevation showing the parts in position f shown in Fig. 1. Fig. 4 is a plan with certain'parts in section, and Fig. 5 is a side.

elevation of a blade.

Instead of adopting a weightmounted on the frame of the machine for holding the scraper in position, this device is constructed with a heavy roller 10 which constitutes the supporting wheels for the frame and the weight for the blade. It is preferably c011- structed of a heavy iron casting, and may be provided with a pair of circumferential grooves, holding solid rubber or other tires or rims 11 which will bear on the floor and reduce the noise of operation. Through this roller passes a shaft 12, the roller freely turning thereon. The roller is cut out at the ends to form counter-sunk openings 13 into which sit a pair of projections la constituting colpreferred form of scraper lars, and preferably integral with a pair of side frames 15 with which the handle 16 is connected. The shaft, of course, passes through these collars and constitutes a pivotal connection for the handle, the collars being adapted to turn thereon.

0n the ends of the shaft or stud 12 a frame 20 is mounted by means of a pair of collars 21 with which it is provided. Set screws 22 or other fastening means secure these collars to the ends of the stud so that the frame is pivotally supported by the roller and is free to swing about its pivot. The frame is provided with a cross bar which holds its lower ends together, and with a rod or shaft 2% on which is pivotally mounted a scraping blade-holder 25. This holder is provided with a clamping plate 26 which, by means of clamping screws 27 holds the scraping blade 28 in position on the holder. If it is desired to provide for extending the blade out beyond the side of the frame of the machine, the same is provided with longitudinal slots 29 so that it may be adjusted sidewise as shown in dotted lines in Fig. 3. It will then scrape up to the wall on one side, or if desired the blade may be made a little longer than the frame is wide, in which case the same operation will take place, but it is preferred that the blade be of a length substantially the same as the width of the frame and blade holder. On this blade holder is pivotally mounted by means of a shaft or stud 30 a head 31. This head is intended to be connected with the handle in both of its positions, in such a manner that a yielding pressure may be transmitted from the handle to the head in order to force the blade against the lioor with any desired degree of pressure, the weight of the roller 10 being of such a nature and in such a position as to permit this result to be accomplished whether the handle is in the position shown in full lines in l or in that shown in dotted lines. in order to accomplish this result, the head 7 3i is provided with a clamping plate and with clamping screws in the same way the handle is provided With a pair of clamping heads and clamping screws 86. A pair of springs lt), shown bow-shaped, are mounted between the heads 31 and 35 and clamped thereto.

in the position shown in full lines in l, in which the device is to be pushed along the floor, downward pressure on the handle, which is the natural way of applying pressure thereto, will force the blade down with a yielding pressure in such a way that the operator may exert any desired amount of pressure in accordance with the character of the floor on which he is operating. This is a great advantage over those constructions in which a uniform dead weight is employed, as it enables the operator to vary the pressure in accordance with the kind of work upon which he is engaged, and permit the use of the same machine without adjustment or change for all kinds of Work. When the device is to be employed in the manner shown in Fig. 2, in which it is to be pulled along the floor, the natural tendency of the operator is to lift the handle instead of depressing it, consequently, a pair of springs ll is employed having a general bow-shape, but being of such a character as to cause a rising motion of the handle to force the blade yieldingly against the floor.

It will be seen that a floor scraper constructed in accordance with the principles above set forth in the particular form illustrated or otherwise, has many advantages over the prior art, and accomplishes the results above indicated.

IVhile I have illustrated and described a particular form of the invention I am aware that many modifications may be made therein by any skilled mechanic without departing from the scope of the invention as set forth in the claims. Therefore I do not wish to be limited to the particular form illustrated, but

What I do claim is 1. A floor scraper having a frame, a scraping blade-holder movably connected therewith, a handle pivotally connected with the frame, and resilient means attached to the handle and to the blade-holder for transmitting pressure from the handle when it is being swung upwardly to the blade-holder to press the blade-holder downwardly.

2. A. floor scraper having a swinging frame, a blade-holder pivotally mounted thereon, a movable handle, and springs movor pulling,

able independently of the frame for connecting said blade holder with the handle and transmitting pressure from the handle to the blade holder to move the blade holder independently of the frame.

3. A floor scraper having a movably mounted blade holder, a pivoted handle connected with said blade-holder and capable of swinging so as to project toward the front and rear thereof, whereby said scraper may be operated by the handle by pushing or pulling, and resilient means movably connected with said blade holder for connecting the handle therewith, whereby the pressure of the blade on the floor may be controlled directly by the handle.

4. A floor scraper having a scraping blade, a handle pivotally mounted and movable to a position on either side of the blade, whereby the scraper may be operated by pushing and resilient means for connectand handle, and for transmitting pressure from the handle to the blade-holder in both positions of the handle.

In a floor scraper, the combination of a movable scraping blade holder, a pivoted handle adapted to be swung both to the front and the rear of said blade holder, springs for connecting said handle with the bladeholder, and means on the handle and bladehoider for the attachment of said springs.

6. In a floor scraper, the combination of a pivoted scraping blade-holder, a movable handle, springs for connecting the blade holder and handle, and means pivotally mounted on the blade-holder for the attachment of said springs.

7. In a floor scraper, the combination of a scraping blade holder, heads pivotally mounted on said blade-holder, a movable handle, and bow springs connecting the handle with said heads.

8. In a floor scraper, the combination of a movable scraping blade holder, a shaft, said holder extending from the shaft in one direction, a weighted roller journaled on said shaft for supporting the floor scraper, a handle extending from the shaft in the opposite direction, and means extending from the handle over said shaft and connecting the blade holder and handle for yieldingly transmitting pressure from the handle to the blade-holder.

9. In a floor scraper, the combination of a shaft, a movably mounted scraping blade holder extending from the shaft in one direc tion, a handle extending from the shaft'in the opposite direction, and means extending across said shaft for yieldingly transmitting pressure from the handle to the blade holder.

10. I11 a floor scraper, the combination of a movable scraping blade holder, a shaft on which the same is pivoted, said holder extending from the shaft in one direction, a

ing the blade holder handle pivoted on said shaft and extending therefrom in the opposite direction, and means connecting the blade-holder and handle for yieldingly transmitting pressure from the handle to the blade-holder.

11. In a floor scraper, the combination of a heavy roller, a shaft or stud projecting therefrom at its center, a frame pivotally connected with said shaft or stud and extending to one side of the roller, a shaving blade holder pivotally mounted on said frame, a handle pivotally mounted on said shaft or stud, a spring pivotally connected with said blade holder, and means for connecting the spring with the handle.

12. In a floor scraper, the combination of a heavy roller, a shaft or stud projecting therefrom at its center, a frame pivotally connected with said shaft or stud and eX- tending to one side of the roller, a shaving blade holder pivotally mounted on said frame, a handle pivotally mounted on said shaft or stud, a spring connected with said blade holder, and means for connecting the spring with the handle, said spring being detachable from the blade-holder and from the handle, whereby it may be replaced by a different spring to accommodate an adjustment in the position of the handle.

13. In a floor scraper, the combination of a heavy roller, a shaft passing therethrough, said roller being rotatable on said shaft and having counter-sunk openings in its ends, a

handle having a frame provided with inwardly projecting hubs or collars extending into said counter-sunk openings and adapted to turn on said shaft, a frame having collars secured to the ends of said shaft outside of said first named collars and extending downwardly therefrom, and a holder mounted on said frame.

14. In a floor scraper, the combination of a frame comprising side pieces, a heavy roller j ournaled between said side pieces for supporting them, and a handle having a fork journaled between the roller and the two side pieces whereby the frame extends beyond the outside surfaces of the roller and handle.

15. In a floor scraper, the combination of av frame comprising side pieces, a heavy roller journaled between said side pieces for supporting them, a handle having a fork journaled between the roller and the two side pieces whereby the frame extends beyond the outside surfaces of the roller and handle, and a blade mounted on the frame and adjustable so as to project beyond either side thereof.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

FREDERICK M. ISRAEL. l/Vitnesses:

Joi-IN MANN, CHARLES L. PETERS.

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