US2716314A - Buffing wheel comb - Google Patents

Description

0, 1955 c. R. UPHAM 2,716,314

BUF'FING WHEEL COMB Filed March 16, 1954 IN V EN TOR. CHARLES R. UPHAM ATTORNEYS United States PatentO The invention described herein may be manufactured and used by or for the Governmentof the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

This invention relates to bufiing wheel combs and more particularly to a comb or wheel dresser for butting and polishing wheels for breaking up the hard glazed surface "Ice vention consists of a guide plate 11 having a pair of handles 12 and 13 extending from the opposite ends thereof and provided with four relatively large openings such as 14 in the corners thereof through which the fastening elements or spacing means 15, 16, 17, and 18 extend. Guide plate 11 is also provided with a plurality of relatively smaller openings through which a large number of pins 19 extend, preferably arranged in uniform rows as shown.

The pins 19, which may be common nails or special pins formed of hard abrasive resistant material, are provided with pointed ends extending beyond the guide plate 11 and at the opposite end are provided with heads 22 which are secured between a base plate 23 and a backing plate 24. Plates 23 and 24 constitute pin holding means by virtue of the engagement thereof with the headed ends of the pins. The base plate 23 is provided with a plurality of openings aligned with those in the guide plate 11 through which the pins 19 extend.

The fastening elements 15, 16, 17, and 18 are rigidly held in the corner openings, such as 14, of the guide plate formed by use of the wheels with bufiing and polishing compounds and restoring the wheels to their original condition.

Many devices have been used for this purpose in the past including combs formed with a plurality of channel shaped members with serrated teeth and a block of wood with nails or similar pointed projections extending therethrough. However, these devices, being subject to severe use, would break down and wear rapidly and had to be replaced at frequent intervals.

The present invention, as illustrated herein in one preferred embodiment, comprises an elongated guide plate which is provided with a plurality of openings therethrough. An elongated pin extends through each opening and beyond each side of the plate. Means are provided to fixedly secure one end portion of each pin to the plate at predetermined selected distances from the plate. Thereby the other end of each pin may be positioned beyond the plate at selected distances, within limits determined by the length of the pin, and rigidly secured to the plate in any such selected position.

One object of the present invention is to provide a rugged and rigid construction for a buffing wheel comb, which will withstand the strains of severe use for which it is intended.

Another object of the present invention is to provide a bufling wheel comb or dressing tool which can be adjusted from time to time so that the cleaning pins may be extended to vary the depth of penetration or compensate for wear during use of the comb against the abrasives commonly used on bufiing and polishing Wheels.

A still further object of the present invention is to provide a buifing wheel comb which presents a large number of projections thus doing a much better job of breaking up the hard glazed surface formed on bulfing and polishing wheels and restoring the wheels to their original condition, but is light and easy to use for its intended purpose.

Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:

Fig. 1 is a perspective view of a butting wheel comb illustrating one preferred embodiment of the present invention, with portions broken away and one of the fastening elements with its associated nuts exploded to show the details of construction; and

Fig. 2 is a section taken on the line 2--2 of Fig. 1.

Referring now to the drawings in detail, the preferred embodiment of the bufiing wheel comb of the present in- 11 by nuts such as those shown at 25 and 26 (see particularly Fig. 2).

The fastening elements 15, 16, 17, and 18 also extend through similar corner openings such as those shown at 27 and 28 in the base plate 23 and the backing plate 24.

Nuts such as those indicated at 31 and 32 are threaded on the fastening elements 15, 16, 17, and 18 on opposite sides of the base plate and backing plate. Nuts 31 and 32 secure plates 23 and 24 to the pins and to the spacing means 15, 16, 17, and 18. It will be apparent that the inner nuts 31 may be threaded toward the guide plate 11 and the outer nuts 32 tightened down to extend the pins further through the guide plate 11.

The guide plate 11, base plate 23, and backing plate 24 are preferably made of a lightweight metal such as aluminum to withstand the severe uses encountered but still provide a light and easily manipulated tool, or it may be made of any other desirable material which is strong enough for the particular usage.

This arrangement provides an extremely rigid and strong structure which may be pushed up against the buffing or polishing wheel by pressure of the body of the operator against the backing plate and may be guided by the handles. As the pins wear down in use by contact with the abrasive compounds used in bufling and polishing wheels, or by breakage of the end portions thereof, or if it is desired to vary the depth of penetration of the pins into the wheel, the comb may be adjusted without disassembly. It is to be noted that the pins, when the comb is in use, are fixed to the guide plate in the openings thereof.

Obviously many modifications and variations of the present invention are possible in the light of the above teachings. It is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.

What is claimed is:

l. A buffing Wheel comb comprising a guide plate, a base plate adjustably mounted in spaced substantially parailel relation to said guide plate, a backing plate mounted adjacent said base plate in substantially parallel relation thereto, a plurality of headed pins extending through said base plate and said guide plate and extending outwardly beyond said guide plate, and means for clamping the heads of said pins between said base plate and said backing plate.

2. A bufiing wheel comb comprising a guide plate having a handle extending from each of the opposite end portions thereof, a base plate mounted in spaced relation to said guide plate, a backing plate mounted adjacent said base plate, a plurality of headed pins extending through said base plate and said guide plate and having pointed ends extending outwardly beyond said guide plate, the heads of said pins being positioned between said base plate ;andsaid. backing plate, and. fastening elements extending through said plates and provided with adjustable IBCaHSfOI clamping the heads of said pins between said base and backing'plates and for securing said plates in substantially parallel spaced relation.

3. A buffing wheel comb comprising an elongated guide plate having a handle extending from each of the opposite end portions thereof, a base plate mounted in spaced substantially parallel relation to said guide plate,

abacking platelmounted adjacent said base plate in substantially parallel relation thereto, a plurality of headed pins extending through said base plate and said guide plate and having pointed ends extending outwardly beyond said guide plates, the heads of said pins being positioned between said base plate and said backing plate, and threaded elements extending through said plates and provided with nuts on opposite sides of said guide plate and on opposite sides of said base and backing plates for securing said plates in substantially parallel spaced relation.

4. A bufling Wheel comb comprising a guide plate having a plurality of rows of openings therethrough, a pin extending through each of said openings, and adjustable means rigidly securing said pins in said openings to compensate for wear on said pins and vary the depth of penetration.

5. In a device of the class described, a guide plate, a plurality of elongated pins extending substantially normal to and projecting beyond ats least one face of said plate, pin holding means engaging said pins, spacing means fixedly secured to said plate, and means to fixedly secure said pin holding means to said pins and to adjustably secure said pin holding means'to-said spacing means whereby said pins may be secured to said plate in a plurality of adjusted positionsrelative thereto.

6. In a device of the class described, a guide plate having a plurality of openings therethrough, a plurality of pins respectively extending through said openings and beyond each side of the plate, and adjustable means to fixedly secure one end portion of each pin to the plate at a predetermined selected-distance therefrom, whereby the other end portion of each pin may be adjustably positioned beyond the plate and fixedly held to the plate in such adjusted position.

ReferencesCitedin the file of this patent UNITEDSTATES PATENTS 1,146,529 'Scott July 13, 1915 1,280,639 Beier ,et al. Oct. 8, 1918 1,829,531 Neilsen Oct. 27, 1931 1,832,509 -Sc0tt Nov. 17, 1931 2,032,507 Scott Mar. 3, 1936 2,672,677 Von Arx Mar. 23, 1954

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