US994504A - Buffing-wheel. - Google Patents

Description

W. W. GROOKBR.

BUFPING WHEEL.

ArPLIoATIoN rum ooi'A 12, 1910.

994,504, Y Patented Jun`e6,1911.

.x 25.1# (17%.. 'cys UNTTED STATES PATENT orme-E.

WILLIAMVINSLOW CROOKER, 0F EVERETT, MASSACHUSETTS, ASSIGNOR 0F ONE- TO HENRY C. LITTLE, 0E WEST NEWTON, MASSACHUSETTS.

BUFFING-WHEEL.

Specification of Letters Patent.

Patented June 6, 1911.

Application filed October 12, 1910. Serial No. 586,705.

' tion of the upper which forms one side of the crease the enamel surface of the upper when the latter or any part thereof is made of so-called patent. leather. In repairing cracks in patent leather extending into the crease between the upper and sole or Welt, it

.is necessary te remove the glaze or enamelI in which the crack is formed and to dcnude the upper, not only along the crack, but on both sides thereof. y

The tool or appliance embodying my in# vcntion as hereinafter described, is adapted to enter the above-mentioned crease a'nd denude any desired portion of the upper, forming one side of the crease Without injury t0 the upper, or to the portion of the sole or welt forming the opposite side of the crease.

The invention consists in the improved tool or appliance hereinafter referred to as a buling wheel, which I will now proceed to describe and claim.

Of the accompanying drawings which form a'part of this specificatiom-Fiffure l represents a side view of my improved buffing wheel, taken from the inner side thereof and showing in section the shaft on which the wheel is mounted. Fig. 2 represents a section on line 2-2 of Fig. 1. Fig. 3 represents a perspective view of the compressible pad hereinafter referred to, forming a part of the bulling wheel.

Similar reference characters indicate the same or similar parts in all the figures.

In the drawings, 12 represents a rigid disk of any suitable material, preferably aluminum or other metal, the disk being (lished so that it has a projecting side and a recessed side. the former being preferably convex and the latter concave, as shown by Fig. 2. The sides of the disk converge from the center toward the periphery, so that the latter is reduced to a relatively thin edge 15 adapted to enter the crease between the upper l13 the sole 14 of a boot or shoe. The disk is provided centrally with a hub 16 which projects from the recessed side of the disk and is internally threaded to engage the threaded portion of a rotary shaft 17 which imparts rotation to the disk.

18 represents an annular pad of compressible elastic material, preferably rubber, said pad being substantially V shape in cross section and adapted to bear on the outer and inner sides of the disk and to cover the periphery of the same, the elasticity of the pad being such that it is adapted to be sprung into place upon the disk.

19 represents a flexible cover 0f any material suitable for the removal of the glaze from patent leather, the preferred material of the cover being textile fabric such as cotton duck or canvas. The cover is preferably composed of a single substantially circular sheet of greater diameter than the disk, the margin of the cover being preferably provided with a gathering cord or string 20 contained in a pocket formed by liemming the margin of the cover and adapted to contract the marginal portion of the cover and hold the cover bent or folded across the margin of the pad and disk. The central or body portion of the cover is placed against the projecting side of the disk and covers the same, the marginal portion of the cover being folded across the edgesof the pad and disk and then contracted by suitably manipulating the tying cord 20.

21 represents an annular clamping plate Which is adapted to surround the hub 16 and is movable thereon toward and from the recessed side of the disk, the outer edge of the clamping plate being adapted to bear on the contracted marginal portion of the cover and press the latter', together with the corresponding portion vof the pad 18 against disk to permit the application of the cover thereto.

The described appliance is `particularly adapted to remove the glaze from patent leather at one side of a crease as stated, the cloth cover acting when the appliance is rapidly rotated to quickly remove the glaze Without injuring the grained surface of the leather on which the glaze or enamel coating is formed. The pad 18 forms a yielding support for the portion of the cover which acts on the upper leather and also yieldingly supports the portion of the cover which is in rubbing contact with the Welt or sole so that the latter is not injured or abraded.

In practice, the glaze on the upper leather, is rendered brittle by applying a volatile solvent such as acetone to the portion of the glaze which is to be removed, just before the operation, the solvent rendering the glaze brittle so that it is adapted to be quickly abraded and removed by the cloth cover. Said cover is not an abradant of the grained surface of the upper leather nor of the grained surface of the Welt against which the cover rubs during the operation.

It is obvious that the described appliance may be used forvother purposes requiring the application of a rubbing surface to one or both sides of the crease between a boot or shoe upper and a weltor inner sole. lt is also obvious that any other suitable means may be employed in securing the cover in its working position.

I claim:

l. A bufiing wheel comprising a disk of rigid material having a thin periphery and dished to form a projecting side and a recessed side, an elastic annular pad substan` 'tially V shaped in cross section and adapted to bear on the rigid periphery and portions of the sides of the rigid disk, a flexible cover formed to bear -on the external surface of the pad, and means for detachably securing the cover to the disk.

2. A bufing Wheel comprising a disk having'a' thin periphery and dished to form a projecting side and a recessed side, an clastic annular pad'substantially V shaped in cross section and adapted to bear on the periphery and portions of the sides of the disk, a cover composed of a sheet of flexible material formed to cover the projecting side of the disk and the pad, the margin of the cover being ada ted to conform to die recessed side of tie disk, a clamping plate adapted to enter the said recessed side and

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