US2793477A

US2793477A - Abrading device

Info

Publication number: US2793477A
Application number: US535474A
Authority: US
Inventors: Charles D Gray
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-09-20
Filing date: 1955-09-20
Publication date: 1957-05-28
Anticipated expiration: 1974-05-28

Description

C. D. GRAY ABRADING DEVICE May 28, 1957 Filed Sept. 20, 1955 INVENT 'OR. 4 CfianesBGrqy M mor.

ATI'D RN EYS ABRADING DEVICE Charles D. Gray, San Francisco, Calif.

Application September 24 1955, Serial No. 535,474

2 Claims. (61. 51-486) This invention relates to a device for use in sandpapering various articles or surfaces.

The object of the invention is to provide a device which is adapted to be used for sandpapering furniture or other articles.

Another object of the invention is to provide a sand papering bar or device which does not have any adjustable parts and wherein the sanding device or sanding block of the present invention permits excess material to be readily removed while repairing damaged surfaces without disturbing the original finish so that a level surface can be provided.

A further object of the invention is to provide a sanding block which is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application, and in which like numerals are used to designate like parts throughout the same:

Figure l is a side elevational view of the sanding block of the present invention, with parts broken away and in section.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a side elevational view of the sanding block.

Referring in detail to the drawings, the numeral designates a base or bar which can be made of any suitable material such as wood, and the base 10 is provided with an annular recess 11 which has its ends spaced in-- wardly from the ends of the base It). A strip or sheet of sandpaper 12 is trained around the base 10 and the sheet of sandpaper 12 is secured as by means of glue or a suitable adhesive within the recess 11. The recess 11 defines annular end portions or runners 14 on the ends of the base 10.

From the foregoing, it is apparent that there has been provided a sanding block which is especially suitable for use in finishing various surfaces such as surfaces on furniture or the like. In use, the base 16 is cut away to provide the annular recess or groove 11, and then the sheet 12 of sandpaper is wrapped around the recess 11 and glued in place. Then, it will be seen that the outer surface of the sandpaper 12 is flush with the outer surfaces of the end portions 14 of the sanding block so that rough surfaces or the like can be readily smoothed away without damaging adjacent surfaces, since the end portions 14 can be used to ride on those surfaces which are not to be.

touched by the sandpaper. The recess 11 is of such a thickness that it corresponds to the thickness of the sandpaper 12.

Thus it will be seen that there has been provided a sanding bar which does not have any adjustable parts and wherein the bar is precision formed to use the correct size States Patent EQQ and grit of abrasive which is glued to the bar 10. The bar ltl may be either cylindrical or rectangular in shape. Usually the excess material to be removed while repairing furniture i of a very small'quantity so that after the bar has been used several times it may be discarded if desired. Furthermore, the device is very simple and inexpensive to manufacture. The sanding block permits a person to remove any excess material which may have been deposited while repairing damaged surfaces without disturbing the original finish and at the same time acquiring a perfect level surface. The base or bar 10 can be made of any suitable material such as wood and may be 1 /2 inches long with a inch diameter. The diameter of the base is lessened as for example of an inch which may be the thickness of the sandpaper 12 to be used. Then, the piece of sandpaper 12 of this thickness is fitted and glued into the recess 11. The ends 14 immediately become natural runners to maintain a perfect level surface because a track 3 of an inch deep or the thickness of the sandpaper 1.2 being used has been cut in the base for the sandpaper to ride in. This controls the abrasive action which cannot exceed beyond the level point of the surfaces 14 since the diameter of the surfaces 14 are of the original inch diameter.

The sanding block can be used on furniture and finished surfaces which has been damaged, nicked, scratched or dented and which are being repaired by filling them with putty, wood filler, or by melting lacquer sticks of the proper color. Since the correct amount cannot be deposited, the excess material must be sanded off. This process always does minor damage to the finish surround the repaired spot and for a perfect job a person must paint, varnish or spray a coat of lacquer or French polish over the entire piece. If the repaired part is not sanded perfectly level, considerable work is involved and if it is sanded too much, a gulley will appear and then it is necessary to. do the job over by refilling and sanding to get a perfect level surface. With the present invention the aforementioned shortcomings are eliminated.

I. claim:

1. In an abrasive device, a base, there being an annular recess in the outer surface of said base, said recess terminating short of the ends of said base to define a pair of annular runners, abrasive material arranged in said recess, said base being of cylindrical shape, said abrasive material comprising a sheet of sandpaper glued to said base, the outer surface of said sandpaper being flush with the outer surface of said runners.

2. An abrasive device comprising a base, there being a continuous recess in the outer surface of said base, said recess terminating short of the ends of said base to define a pair of runners, abrasive material arranged in said recess, said abrasive material comprising a sheet of sandpaper secured to said base, the outer surface of said sandpaper being fiush with the out-er surface of said runners so that rough surfaces or the like can be readily smoothed away without damaging the adjacent surfaces since the runners can be used to ride on those surfaces which are not to be touched by the sandpaper, said. recess being of such a thickness that it corresponds to the thickness of the sandpaper.

Almond Dec. 11, 1883 Wood Nov. 18, 1890