US2197224A - Abrasive device - Google Patents

Description

April 16, 1940.

- 'A. BLPE E soN ABRASIVE DEVICE Filed June 11 1958 H .ll

INVENT OR.

Paw)? ATTORNEY.

Patented Apr. 16, 1940 UNITED; STATES ABRASIVE DEVICE I I Arthur B. Peterson, Chicago, Ill. V Application June 11, 1938, Serial No. 213,117

10 Claims.

This invention relates to a hand tool or abrasive device which may be used for various purposes, as in carpentry, cabinet work, or the like,

but one of the j particular uses is for cleaning eggs. It is well known'that in many cases it is necessary or desirable to clean'eggs by dry cleaning as distinguished from washing and the present invention is particularly useful for this pur pose.

The objects of the invention are to provide an improved hand tool of the character set forth which will be simple and economical in construction and which will be particularly durable and efiicient in use; to provide an abrading tool having means for holding a considerable supply of the abrading material, and means for moving and holding the strip of abrading material to T present new working surfaces; to provide an abrasive device having a working face and means for clamping a strip of materialat either end of the working face for holding the intermediate portion in position; to provide an abrasive or cleaning device for cleaning eggs, having a resilient supporting face or surface for supporting a -flexible abrading or cleaning element; and to provide such other improvements in construction and advantages in operation as will appear from the following. description.

In the accompanying drawing illustrating this invention, F'ig1 1r e,1,isasideview; a a

Figure 2 is aclongitudinalsectional view showing the parts in releasingposition or position'for adjusting the cleaning or abrading strip;

Figure 3 is a'view similar to Figure 2 showing the parts in normal or clamping position and also illustrating the means provided for permitting the cleaning strip to conform'to the surface of an egg or other curved surface;

Figure 4 is .a cross section taken 4-4 of Figure 3; and

Figure 5 is across section 5 -5 of Figure 3. 3

en' the line taken on the line In the particular fori'nof the invention .illustrated, .6 isa handle or' body member preferably formed of sheet meta'lfand channel shaped in cross section having a top I and sides or flanges 8. The sides are cut away or recessed'at one end to receive a cylindrical or tubular holder 9. This holder is split longitudinally as shown at ID to provide an outlet or passageway forthe abrading or cleaning strip, and is formed of resilient material so that the edges along the slot will serve to clamp the strip in adjusted position, The top portion 1 of the handle is bent to conform to the (Cl. 51-487) I tube 9 as shown-at [I and 'is' spot-welded or otherwisesecurely' fastened thereto on the side adjacent to the slot; I

The complete frame or supporting mechanism includes another cooperating handle and adjusting or clamping member l2. This member is also channel-shaped in cross section and has a flat wall or supporting plate I 3 with depending flanges ll. One end of the plate is curved'as shown at I5 to conform to and engage with the tubular holder 9 and is spot-welded or otherwise secured thereto adjacent to the slot Ill. The plate'or wall l3 has a longitudinal opening 16 and portions of the material cut out at either end of the opening are bent inwardly to provide projections l1 and I8 and small portions of the metal are also punched out adjacent these projections to form outwardly extending points or tangs l9 and 20. 1

One end 'of the plate or top 1 is bent inwardly and then upwardly to form a groove 2| with, a clamping portion 22 as shown particularly 'in Figures 2' and 3. Oneend of the adjusting or clamping member I2 is' also curved'inwardly as shown at 23 and provided with a slot or opening 24 which "takes over the adjacent curved or grooved portion 2| of the top plate and provides a cross strip or bar'25'which engages 'with the groove 2| when theparts'are in normal or clamping position as-sho'wn in- Figure 3, and which also provides 'a' tearing edge for tearingoiffthe used portionfofthe cleaning stri'p' 'as will presently be describedu' A compression spring 25 is interposed between the top plate I and" the coacting plateor'bottom member l2 and'is held in position by the projection It. This spring tends to spread theouter or free ends of-the plates apart and holdthem in normal clamping position. p

The lower frame or clamping member i2 is provided with' a block or strip 21 9f suitable'material to form a backing'or support'for thecleaning strip. This block "or backing is preferably formed of-resilient'material such as sponge rubber, and is partly held inposit'ionby the points or tangs *l9 and 20 whichpiercethe upper "surface thereof and'tend'to hold the 'block-in-the channel.

A'ny suitable "cleaning or abrading material may be used, some of such materials being commonly known as sandpaper, emery paper, or the like but I prefer to u'sea strip 28 of material of this character formed with a cloth backing such as emery cloth, which strip is provided in the form of a roll 29 which may be inserted in the holder 9 with the end of the strip projecting through the slot l0 and carried along the outer surface of the block or backing 21 and then over the curved end 22 of the plate I and under the cross piece 25 as shown in Figure 2. In ordercto adjust the strip or insert it in this manner the free ends of the frame members-are pressed together against the tension of the spring 26 which causes the slot I. to be opened by spreading apart the adjacent edges of the tube 9. This also causes the strip or cross piece 25 to be freed from the groove 2| so that the strip 28 may be inserted in the opening thus provided as shown in Figure 2. After the strip has been tightened the tension on the spring is released and the spring moves the adjacent parts to clamping position as shown in Figure 3.

The operation of the device when in use will be apparent but it may be noted that on account of the resiliency of the backing or block 21 and the yielding character of the abrasive cloth, the engaging surface will conform to the surface of the work-piece even if the work-piece is of irregular or curved shape. The slot or opening in the bottom plate also permits the rubber backing to be pressed upwardly therein as shown inFigures 3 and 5 so that the engaging surface may assume a concave shape to fit over an egg whereby the egg may be rapidly cleaned when the device is applied thereto. After the exposed section of the abrasive tape has been used a desired length of time the frame ends are again pressed together to open up the outer clamp and the slot in the holder clamp, and a sufficient length of tape drawn from the supply roll through the holder to present a new work surface. The clamping members are then released and the used end of the tape is torn off over the tearing edge 25 so that the tool is ready for further use,

I have disclosed a practical commercial form of'my invention but changes may be made without departing from the scope thereof as set forth in the following claims, in which I claim:

1. In a device of the character set forth, the combination of a handle member, a tube secured transversely to one end of the member and having a longitudinal slot in the outer portion thereof, the edges of the slot forming a clamp, an auxiliary member secured to the opposite side of the tube and extending longitudinally of the first named member and adapted to coact there- 2. In a device of the character set forth, the combination of a channel shaped handle mem-,

her, a holder for a rolled strip of material secured at one end of said handle member, an auxiliary channel shaped handle member connected with said holder and extending longitudinally of the first named member, clamping means for holding the strip adjacent to the holder, said first named handle member having a transverse groove portion at its free end extending through an opening in the free end of the auxiliary handle member to form holding and clamping means, a compression springinterposed between the free ends of said handle members .and tending to press them apart, and

, to open the slot, the free end of the auxiliary member'being bent inwardly and having an opening therethrough, a projection on the first named member extending through said opening and interlocking with the end of the auxiliary member and forming a clamp, said auxiliary member having a longitudinal opening therein and having projections extending inwardly and sharpened points extending outwardly at the ends of said opening, a pad of resilient material extending lontudinally of the outer surface of the auxiliary member and engaging with said points, a compression spring in.- terposed between the free ends of said handle members and fitting over one of said inwardly extending projections, a roll of said strip positioned in the holder and extending out through the slot and along the face of said pad with its outer end engaging with the clamp formed at the ends of the handle members, said strip being held by the clamping members at either ends of the handle in working position along the pad and being released.by the clamps when the free ends of the handle members are pressed toward each other.

4. A cleaning device of the character set forth, comprising two substantially parallel handle members hinged together at one end and having coasting jaws at the opposite end to form a clamp, said jaws being arranged to remain in interlocking position at all times and prevent the spreading of the ends of the handle members beyond a predetermined position, a spring interposed between the clamping ends of said members and tending to hold the jaws in closed position, a support at the hinged end of said handle members for supporting a rolled strip of cleaning material, said handle members also having coating jaws adjacent to the support through which the strip isdrawn, said jaws also being urged to closing position by the spring, the arrangement being such that" the strip of cleaning material may be drawn through the last-named jaws along one face of one of the handle members with its end positioned between the first-named jaws and held in working position along said face by said jaws, both of said pairs of jaws being operated simultaneously by the handle members.

5'. Ina device of the character set forth, the combination of two substantially parallel handle members having clamping jaws at each end thereof and hinged intermediate of said clamping jaws, and a spring interposed between said handle members and tending to hold the jaws at each end in closed positions, whereby both of said jaws will be operated simu'taneously by said handle members and a strip of material may be held in engagement with one of the faces of said handle members by said jaws.

6. In a device of the character set forth, the combination of two coacting substantially parallel members having pivotal connection adjacent to one end thereof, the endsof said members also coacting to form clamps at each end of the device which are opened and closed simultaneously by the movement of said parallel members, a spring positioned between said members at one end of the device and tending to urge the members into position to close the clamps,-

combination of a handle member, a holder for a rolled strip of material secured to one end of said handle member, an auxiliary member connected with saidholder and extending longitudinally of the first-named member, clamping means for holding the strip adjacent to the holder, said handle member having a transverse groove portion at its free end extending through an opening in the free end of the auxiliary member to form holding and clamping means for holding the ends in interlocked engagement and for clamping the strip of material, a compression spring interposed between the clamping ends of the handle member and the auxiliary member tending to press them to clamping position, and a pad of yielding material secured to the auxiliarymember and extending longitudinally thereof.

8. In combination, a receptacle for holding a .roll of material for polishing or abrading, said receptacle having a longitudinal opening through which the strip of material is passed, means at the opening for clamping thestrip to hold it in working position, an arm attached to the receptacle and extending laterally therefrom' and serving as a backing for the working portion of the strip, a second arm secured to the receptacle and extending along the first-named arm, the outer ends of said arms having interenga ing portions to form a clamp for holding the strip of material at such end, a spring positioned between the arms and urging them to I clamping position, the clamping portions or the 3 arms being such that the ends are always held against disengagement by the action of the spring,

the arrangement being such that when the ends are pressed towards each other against the tension of the spring both of the clamps will be released from the strip to permit the strip to be drawn from the supply roll along the b'acking to present a new working surface, and when the ends are released the clamps will engage with the strip to hold the working portionin position along the backing.

9. An abrading device comprising a holder for a rolled strip of abrading material, said holder having an outlet opening at one side thereof, clamps along said opening for clamping the strip, a pair of arms coacting with the holder and clamp and'serving to open the clamp when their outer ends are pressed towards each other, the

outer ends of said arms having inter-engaging portions forming a second clamp between which clamps the working portion of the strip of abrading material is to be held, said inter-em gaging portions being arranged so that they are always in connected relationship and prevent the spreading of the ends of the arms beyond a predetermined point, and yielding -means interposed between the arms for urging the arms apart, the arrangement being such that when the interengaging ends of the arms are pressed toward each other both of the clamps will be released, and when the ends are freed both of the clamps will be closed to hold the strip,

10. In a device of the'character set forth, the combination of a handle member, a holder for a rolled strip of material secured at one end of said handle member, an auxiliary handle member connected with said holder and extending longitudinally of the first-named member, clamping means for holding the strip adjacent to the holder, said first-named handle member having a transverse grooved portion at its free end extending through an opening in the tree end or the auxiliary handle member toform clamping means, a compression spring between the free ends 01' said handle members and tending to press them apart, and a pad of yielding

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