US1922108A - Buffing wheel - Google Patents

Description

Aug. 15, 1933. J. w. MYERS ET AL BUFFING WHEEL Filed Feb. 21, 1930 II J! l dmz ATTORNEY.

Patented Aug. 15, 1933 umrso STATES PATENT OFFICE BUFFING WHEEL Joseph W. Myers and 1{lamest E. Murray, Jackson,

c I Application February 21, 1930. Serial No. 430,416

12 Claims.

. improved buillng wheel, which is cheap to inake and durable in use. We secure this object in the device illustrated in the accompanying drawing, in which:

Figure 1 is a face view of a bufiing wheel section.

Figure 2 is an edge elevation of a buffing wheel upon its spindle, the sections being broken away and sectioned, as indicated by the line II, II, II, II, II, Figure 1.

Figure 3 is a detail section on the line III, III Figure 1.

Figure 4 is a perspective view of a portion of the securing band.

Figure 5 is a face view showing a part of the textile strip of which the sections are made.

2 is the spindle. 3, 3 are the securing discs. 32 is a nut engaging one of the discs 3 upon the spindle 2. 4 is a bolt of which there are a number distributed around the peripheries of the discs, 3, 3 and extending between said discs.

A indicates the sections, of which there are six shown in Figure 2 laying side by side threaded upon the bolts 4 and constituting the but?- ing wheel. To make a section A, a strip of cloth of sufiicient width is taken and one edge is gathered in ridges 5a (Fig. 5). The strip is formed into a spiral by the gathering of its edge and the different spires are laid together to constitute the section A. This gives a ring construction with a circular periphery and the inner edge and the ridges formed by the gathers space the diiferent spires, or layers, apart from each other, so as to permit the passage of air for cooling the material. Each of the sections A has an aperture 5b for the entrance of air formed transversely through it towards its inner edge and the sections may be arranged so that these apertures may be in line, as shown at the top of Figure 2.

To bind the various layers, or spires, of a section firmly together we provide a strip of sheet metal 6, which consists preferably of an integral central portion with sharpened projections 6a extending from its sides. The projections 6a upon one side are staggered with reference to those upon the other side.

The strip 6 is placed around the inner edge of the spires, or layers, of a section and its edges, or projections 6a, are bent upward and clamped by dies against the layers, or spires, so as to bind the inner edges of the same firmly together, as shown most distinctly in Figure 3.,

-When a construction employing the sharp projections 6a, shown in the drawing, is used the outer ends of the projections are bent inward so that when the strip is clamped against the layers of the section, as above described, this sharp bent-in portion of the projection 6a will be pressed by the die into the textile material of the strip, as shown at 6a2. The projection 6a upon opposite sides being staggered, their sharp ends may extend past each other when pressed into the material of the section. The strip 6 is bent outward in one side of the central portion to form spacing lugs, or bulges 6b, which act to space the sections upon the spindle, as shown in Figure 2.

The sections may be quickly and cheaply made, as above described, and the assembled structure provides for the circulation of air between the sections and also through the apertures 51) between the layers and in conduits formed by the ridges, or gathers, 5:1. It is found that with this construction the material will last nearly twice as long as by the construction now in use.

The sections A are securedly clamped between the discs 3, 3, which are provided with apertures, as shown, to permit of the ingress of air for cooling.

What we claim is:

1. An annular buffing wheel consisting of a plurality of rings of cloth and a ring-shaped metal binding ring passing around the inner edges of said cloth rings and having its edges bent outward and towards each other so as to clinch the inner edges of said rings of cloth together firmly and permanently by the resilience of the material of said binding ring.

2. An annular bufling wheel section consisting of a plurality of layers of cloth and a sheet metal strip extending around the inner edges of said layers and having its edges bent outward and toward each other so as to clamp said layers together firmly and permanently by the resilience of the material of said strip.

3. An annular bufling wheel section consisting of a plurality of layers of cloth and a sheet metal strip extending around the inner edge of said layers and having its edges bent outward and toward each other so as to clamp said layers together firmly and permanently by the resilience of the material of said strip, said metal strip being provided with in-bent portions at its edges adapted to penetrate the material of said layers said portions extending into said layers.

i. A bufllng wheel consisting of a plurality of annular sections placed side by side each section consisting of a plurality of layers of cloth and a sheet metal strip extending around the inner edges 01' said layers and bent over upon and clamping said layers together, said metal strip being provided with a spacing lug at its side whereby an air passage is left between adjacent strips, as and for the purpose described.

5. A bufling wheel section consisting of a plurality of strips of textile material gathered at their inner edges so as to produce angularly spaced radially extending folds or ridges laid flat against each other and means for securing said strips in their relative positions, said section being provided with a transverse opening through their gathered portions for the purpose described.

6. An annular bufilng wheel section consisting of a plurality of strips of textile material gathered at their inner edges so as to produce ,angularly spaced radially extending folds or ridges and laid fiat against each other and means for securing said strips in their relative positions, conduits thus formed between the layers being open to the atmosphere at both ends.

7. A bufiing wheel consisting of ring shaped multiple layer unitary sections, each section being formed with a permanently aflixed metal ring-shaped binding strip around its inside edge, said ring-shaped sections being side by side over a centering hub contacting with the metal bound inside edge of the individual sections, said centering hub having a diameter greater than the spindle diameter of the bufling lathe and said sections being clamped together and to said spindle by flanges gripping the end sections at the metal binding strip and the rotating spindle near their centers.

8. A bufling wheel section consisting of a plurality of strips of textile material gathered at their inner edges and laid flat one upon the other, said section being provided with a transverse opening through its gathered portion toward its inner edge and securing discs having air passages therethrough communicating with the inner ends of the passages formed by the gathering of the material, for the purpose described.

9. A bufling wheel having radial passages therein open at both ends and discs for securing said wheel upon its spindle, said discs having air passages therethrough communicating with the inner ends of said passages, as and for the purpose described.

10. A bufling wheel consisting of ring-shaped multiple layer unitary sections, each section being formed with a permanently afllxed metal ringshaped binding strip around its inner edge having a spacing lug at its side whereby an air passage is formed between adjacent binding strips around its inside edge, said ring-shaped sections being side by side over a centering hub contacting with the metal bound inside edge of the individual sections, said centering hub having a diameter greater than the spindle diameter of the bufllng lathe, its interior communicating with the outside air and with the inner end of said air passage and said sections being clamped together and to said spindle by flanges gripp g the end sections at the metal binding strip and the rotating spindle near their centers.

11. A bufling wheel consisting of ring-shaped multiple layer unitary sections, each section being formed with a permanently aflixed metal ring-shaped binding strip around its inner edge having a spacing lug at its side whereby an air passage is formed between adjacent binding strips around its inside edge, said ring-shaped sections being side by side over a centering hub contacting with the metal bound inside edge of the individual sections, said centering hub having a diameter greater than the spindle diameter of the lathe, its interior communicating with the inner end of said passage and said sections being clamped together and to said spindle by flanges gripping the end sections at the metal binding strips and the rotating spindle near their centers, said flanges having apertures therethrough communicating with the outer air and the interior of said hub.

12. A bufling wheel consisting of a plurality of annular sections placed side by side, each section consisting of a plurality of layers of cloth and a sheet metal strip extending around the inner edges of said layers and bent over upon and clamping said layers together, said metal strip being provided with a spacing lug at its side struck up from the material of said strip. whereby an air passage is left between adjacent strips as and for the purpose described.

JOSEPH W. MYERS. ERNEST E. MURRAY.

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