US846159A

US846159A - Sandpaper-holder.

Info

Publication number: US846159A
Application number: US31391606A
Authority: US
Inventors: Martin V B Stone
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-04-27
Filing date: 1906-04-27
Publication date: 1907-03-05
Anticipated expiration: 1924-03-05

Description

No. 845,159. I 1 PATENTED MAR. 5, 1907.

. M. V. B. STONE.

SANDPAPER HOLDER.

, APPLICATION FILED APR. 27, 1906.

'HE NoRR s 27ans co., wAsnlNnraN, n, c.

MARTIN V. B. STONE, OF SWAMPSCOTT, MASSACHUSETTS.'

SANDPAPER-HOLDER.

Specification of Letters Patent.

'.Patented :March 5, 1907.

Application filed April 27. 1906. Serial No. 313,916.

To a/ZZ whom, it may concern.-

Be it known that I, MARTIN V. B. STONE, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented a certain new and useful Improvement in Sandpaper-Holders, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention has for its object to provide a new and improved block or holder for abrading material-such as sandpaper, emery-cloth, and the like-which shall be provided with devices to hold the paper securely in place upon one face of the block in such a manner that the paper shall be kept smooth during use. It is also desirable that as little as possible of the paper bewasted at the points where the holding devices come in contact with the paper.

My improved sandpaper-block holds the paper securely upon the block, so that a very great saving in the amount of sandpaper used is effected. The sandpaper may be placed on the block and secured in place with great ease and little loss of time. The workmen can use the sandpaper much more rapidly and with less exertion than when no block is employed or when such a block is used as is commonly employed by carpenters, in which the sandpaper is folded over the block and both sandpaper and block are grasped by the workmen. My improved sandpaper -holder block affords a slightlyspringy or resilient backing for the sandpaper, which gives the sandpaper greater effectiveness when in use.

rIhe device embodying my invention is especially useful for sandpapering masts, spars, and the like, or large substantially plain surfaces, like floors, bottoms of boats, or clapboards on the sides of houses; but by reason of the fact that there are no projections whatever at one end of the block I find that it may be used conveniently in corners and similar places.

The invention will be fully understood from the following description, taken in connection with the accompanying drawings, and the novel features thereof will be pointed out and clearly defined in the claims at th close of the specification.

In the drawings, Figure l is a view in perspective of a sandpaper-block embodying my invention and having thereon a sheet of sandpaper. Fig. 2 is a view in perspective of the holding means separated from the block.

Referring to the drawings, at A there is indicated a block of any convenient shape or size. In practice, however, I find it convenient to make the block A of a size such that a sheet of sandpaper of standard size when divided into three equal parts will cover one of the large sides of the block, and there will remain in addition sufficient paper to fold over the ends for engagement with the holding devices. In practice I make the block A of resilient material, so that the surface of the block to which the sheet of sandpaper is applied will have a slight resiliency or springiness, which by its adaptation to the shape of the article makes the sandpaper more effective. For this purpose I find cork a very suitable material, since it has a sufficient degree of resiliency, is pleasant to the touch, and has the requisite strength and durability.

At B is indicated the piece of sandpaper which folds over the ends of the block shown at C. The sheet of sandpaper B is held in place by two end pieces D and E, which are held in contact with the ends of the block by one or more bolts or rods F, screw-threaded at one end and provided with thumb-nuts or other convenient tightening means H. I find it convenient to slot one end plate E, as shown at I, so that when the thumb-nuts I-I are loosened the end plate I may be wholly removed, which is convenient in putting in place the sandpaper. The through-rods if are suitably secured to the other end plates D in any convenient manner. it convenient to have the ends of the rods F fast to the end plate D and flush with its outer surface, and to this end I solder or rivet the said rods F of the said end plate D, so that there is no projection on the end of the end plate D which would interfere with also find it convenient to curve slightly the theuse of the device in small spaces or corners. I edges of the end plates D and E, as shown at K, which insures that the sandpaper is held firmly against the edge of the block A, so that less sandpaper to fold over the edges of block is required.

Thile I have described the two plates D and E as end plates-that is, plates of the size and shape of the end faces of the blockside plates-that is, plates of the size and shape of the side faces of the block-may be employed, if found desirable for any reason. I find, however, in practical operation that In practice I find ICO IIO

end plates are preferable, because by that means the amountof sandpaper wasted is reduced to a minimum.

When it is desired to change the piece of sandpaper on the block, it is only necessary to loosen somewhat the thumb-nuts H, when the end piece E and the old piece of sandpaper may be removed. By pressing the thumb-nuts II and rods F endwise the end plate D is separated slightly from the end face of the block A, and the end of the new piece of sandpaper may be inserted in its place, with its edge in contact with the rods F. The end plate D is then pressed firmly against the block A to hold the sandpaper andthe sandpaper folded over the face of the block and into its proper position, after which the plate E is replaced and the thumbnuts tightened so that the sandpaper is held firmly in place.

I am aware that blocks for holding sandpaper have been made heretofore but so far as I am informed these blocks all have complicated structures, are more expensive to construct, more likely to get out of order or to fail to hold the sandpaper firmly during use, less convenient for the workmen to hold, and less convenient for use in corners or narrow spaces, and are also more extravagant in the use of sandpaper.

What I claim is- 1. The improved sandpaper-holder, com- I prising a block of resilient material, a pair of plates for two opposite faces of the block,

and securing means for holding the said plates against the adjacent faces of the block said securing means comprising a rod passing through the block and engaging the said plates.

2. The improved sandpaper-holder, comprising a block, a pair of plates each provided with an incurved edge, and securing means for holding the said plates against the adj acent faces of the block.

3. The improved sandpaper-holder, comprising a block, a pair of plates for two opposite faces of the block, one of said plates being slotted for convenience of removal, and securing means comprising a rod passing through the block and a thumb-.nut for holding the said plates against the adjacent faces of the block.

4. The improved sandpaper-holder, comprising a block, a pair of plates for two opposite faces of the block, and securing means comprising a rod passing through the block and a thumb-nut for holding the said plates against the adjacent faces of the block, said rod being fixedly attached to one of the said plates with its end flush with the surface of the said plate.

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

MARTIN V; B. STONE.

Witnesses:

GEORGE I. DIKE, J. HENRY PARKER.