US2572092A - Wheel for buffing - Google Patents

Description

Oct. 23, 1951 H, H, BAHR 2,572,092

WHEEL FOR BUFFING Filed March 26, 1948 5 Sheets-Sheet l Jrroewzr Oct. 23, 1951 BAHR 2,572,092

WHEEL FOR BUFFING Filed March 26, 1948 3 Sheets-Sheet 2 'g a 5w A; 3

IN V EN TOR. f/t/vey /7. 64/? Oct. 23, 1951 BAHR 2,572,092

WHEEL. FOR BUFFING Filed March 26, 1948 3 Sheet s-Sheet 5 Zy-/% j INVENTOR. fi H 54am Patented Oct. 23, 1951 ATEN T @F F1 C E WHEEL F 3. BUFFING Henry H. Bahr, New York, N. Y assignor to Guaranteed Bui j 00., Inc., New :Y ork, N. Y., a

corporation of New York Application March 26, 1948, Serial No.'17,249

(open-193) Claims.

The present invention is directed to buffing wheels, more particularly to an improved type of wheel which is adapted for many purposes.

Bufiing wheels of various structures have been known for a considerable timeand they have been inzuse one large scale. The tendency in buffing operations is to provide wheels which operate at high speeds inorder to increase the efficiency of the operation and to decrease the time necessary for obtaining the results. In View of'this, prior structures have been .found to be defective in asnumber of respects. .Foriinstance, at the high speeds, there is a tendency for the fabric to ravel andquickly wear out. At the high speed of operation, a very considerable amount of heat is generated, often resulting in burning or deterioration of the fabric.

The present invention is' intended and adapted to overcome the di'fiiculties and disadvantages inherent'in'prior structures, it being am'ong'the objects of the present invention toprovide awheel structure for buiiing purposes wherein a number of metallic elements aremounted on the central disk and provide means for anchoring the fabric bufling surface.

It is also among the objects of the present invention to provide'a structure of the type described wherein there is provided a series of bundles or groups of fabric pieces, each group being held between metallic members so as to give a firm anchorage;

It is further among the objects of the present invention to provide a wheel structure which is relatively simple and which may be quickly assembled without the-necessity of utilizing highly skilled labor and to provide a bufling wheel which is sturdy and strong and which will understand considerable usage.

It is still further among the objects of the present invention to provide a buffing wheel structure whichhas adequate ventilation with the passage of air through the same to prevent undue rise in temperature during operation.

In practicing the'present invention, there is provided 'a base which is usually in the form of a disk. There is also provided a plurality of rim sections which are adapted to be placed in a position somewhat above the periphery of the disk with a space between said periphery and sections. Each of the sections is at anangle to the plane of the disk, such angle being in some cases about 45'degrees. A group of pieces of fabric is placed between two adjacent rim sections and wires or other means pass through the bases of the fabric pieces and anchor the 2 same'to the rim sections. Said sections are usu-' ally assembled in pairs by passing bolts or rivets through flange portions thereof and through the disk itself.

The invention is imore fully illustrated. in the accompanying drawingconstituting a partnereof, in which like reference characters indicate like parts.

Fig. 1 is aside elevational view of-a buffing wheel'made in'accordance" with the present invention. some parts :being' omitted for clearness;

Fig. Z'is a fragmentaryperspective View of the base'showing an assembly-of a pair of rim sec tions;

Fig. 3 is a fragmentary side elevational VlEW' of a bufiing wheel showing the manner in which the ends of thewireswhich-hold'the fabric pieces are anchored;

Fig. 4 is a fragmentary top plan View of a buffing wheel without-showing the-fabric pieces;

Figs. 5 and 6' are perspective and transverse sectional views of rim section;

:Figs. '7 and 8 are views of a-still furthermodified form of :rim section;

Figs.9 and '10 are plan'and perspectiveviews, respectively-of another embodiment of the invention;

Figs. 12 and .13 are fragmentary side elevational cross-sectional views of a further modification of the'invention; 1

Fig. 14 is a front elevationalview of one of the rim sections;

'Fig. 15 is .a fragmentary view 'of the base of Fig- 13 and Fig. 16 is a fragmentary view-of a different formof base.

-Referring to the form of the invention-shown in Figsil to 4, there is provided a base -I in the form-of adisk having a central opening 2 for mounting the'same on a shaft. Rim sections '3 and 3' have openings 4 therein and. a series of wires 5 are-threaded through the same. Each rim section has a. flange 6 and rivet I passed throughopenings in flange 6 and through corresponding openings-8 in base 1 to hold a pair of rimsections 33' in'position, as shown in-Fig. 2. A'space Sintervenesbetween the lower edge In of each section and the periphery H of the base. This allows a rapid circulation of air along the rim of the wheel when it is in motion.

A plurality of pieces of fabric I2 is inserted be tween adjacent rim sections as 33' and each of said pieces has a series of openings [3 through which wires 5 are threaded. The ends of the wires are anchored, as shown in Fig. -3, wherein said ends are passed downwardly, separating one of the bundles of fabric pieces into two parts I4 and I5. One of the ends of wires 5 is then bent as shown at Hi to contact the lower side 16 of the adjacent rim sections and the other end of said wires crosses the first named end and is anchored at H to the adjacent rim section.

Because of such anchorage, even at high speeds of the buiiing wheel, wires 5 are held in position by reason of the pressure between ends [6 and I1 and the rim sections which they contact with. Because the rim sections are spaced but a short distance apart, the anchorage of the fabric pieces in the rim section is firm and strong. There is no tendency for the fabric pieces to bulge outwardly as would be the case if the rim sections were not used. Because such sections are at an angle to the base, there is a more continuous contact of the fabric pieces with the articles being buffed and a better operation results. It is a simple matter to assemble the entire structure to complete the wheel.

In the modification shown in Figs. 5 and 6, the necessity for the use of wires 5 is eliminated. Each pair of rim sections has a base l8 and a flange I9 having openings therein which face each other. Rivets passing through base I may thus anchor pairs of rim sections 2| and 2| in adjacent position on the base as shown in Fig. 1. The rim sections have slots or openings 22 formed therein near the outer periphery thereof. Each rim section is provided with a plurality of tongues 23 which preferably are integral with the sections and which bend into positions parallel with the periphery ll of base I. The free ends 24 of tongues 23 are bent radially inward and the extreme ends 25 thereof are at right angles to said radial portion and are inserted into slots 22 of the adjacent rim section.

Such a structure simplifies the manufacturing operations in several respects. It eliminates the necessity for separate wires and for threading the same through the several elements. The tongues and slots may be stamped out of a single piece of metal simultaneously with the sections themselves and be bent by simple dies into the final position. Bundles or groups of fabric pieces may be assembled on each of the sections and the sections assembled on the base with ends 25 almost automatically falling into slots 22.

In the modification shown in Figs. '7 and 8, each of the rim sections has its base 26, flange 21 and openings 28 for the rivets which secure the sections to the base I. Rim section 29 has a series of extensions 30 at the upper end thereof with tongues 3| projecting from such extensions and providing a series of shoulders 32 against which the pieces of fabric are adapted to be held. Spaces 33 are provided between adjacent extensions. A series of openings 37 is formed in rim section 29 by punching projections 38 inwardly therefrom. Outer ends 34 of tongues 31 are bent radially inward and the extreme ends 35 thereof are adapted to be inserted into openings 3'! similarly to the structure shown in Figs. 5 and 6. A bundle 36 of fabric pieces is threaded onto tongues 3| so that they abut against shoulders 32.

In this structure provision is made for passage of air radially outward between adjacent bundles of pieces of fabric. This is accomplished by the provision of a space 31 between section 29 and bundle 3B. This space is maintained by projections 38 which bear against the fabric and hold it in position. In operation, when the wheel is operating at its normal speed, the angular position of base 26 of each rim section propels air into space 3'! and the higher the rate of rotation, the greater is the amount of air so propelled. The air passes radially outward through spaces 33, coming in contact with bundles 36 and keeping the several bundles relatively cool. Thus burning or deterioration of the fabric is practically eliminated.

Figs. 9 and 10 illustrate a modification in which the pairs of rim sections 3 and 3' are provided with holes 46 along the upper portion thereof. Bars 4| have oppositely extending hooks 42 and 43 at the ends thereof. Holes 40 are somewhat wider than the width of said bars and the hooked ends of said bars may be readily inserted into the holes as shown in Fig. 10. In making the assembly, ends 42 are inserted in holes 40 of section 3', pieces of fabric 12 are threaded onto said bars similarly to Fig. 7, and ends 43 are inserted in the holes of section 3. The sections are then twisted at say a 45 angle to disk 1, thereby looking the bars in position, and the bases of the sections then mounted on said disk.

In Fig. 9 there are shown bars 44 which are relatively long so that they pass through two rim sections by being threaded through holes 45 and 46 therein. The ends 41 and 48 are inserted in end rim sections with fabric pieces l2 between all said sections, and locked in place as described above. Such bars 44 may be of such length as to span any convenient number of rim sections from three up.

Referring to Figs, 12-15, a base 50 having an annular periphery, a dished side 5! and a disklike central portion 52, is mounted on shaft 49. As shown in Fig. 15, a series of pairs of slots 53 is formed in the periphery, said slots being diagonally located and each pair being on one line. Usually such slots are at 45 to the plane passing through the center line of base 50.

Each rim section consists of a member 54 having a series of openings or slots 55 near the upper edge thereof and having a pair of depending legs 55 along the lower edge. These terminate in feet 57 which are adapted to pass through slots 53. Shoulders 58 on legs 56 limit the position of the sections by contact with the outer surface of periphery 50. The upper face 59 of feet 51 is sufficiently below shoulders 58 so as to accommodate the thickness of the periphery of base 50. When in position as shown in Fig. 15, the ends 51' of sections 50 are bent, thus anchoring the sections in position on the base. The heels of feet 51 pre vent longitudinal movement of member 54. Pieces of fabric 60, preferably cut on the bias, are held between adjacent rim sections in any of the manners heretofore described in connection with the other figures of the drawing.

In the modification shown in Fig. 16, the base consists of a pair of disks 6| having a central opening for mounting on shaft 49. The disks are held together by rivets or the like 62 and there are provided integral annular rim members 63 which together form the periphery of the base. One of each of the pairs of slots 53 is formed in one of the members 53 so that sections 54 will be anchored. in both portions 53 of the periphery. A depending flange may be formed on each part 63 to strengthen the structure.

As shown in Figs. 1 and 12, fabric pieces l2 are cut on the bias with the ends of the warp and weft threads on the perhiphery of the buihng surface. Such an arrangement gives a greater efficiency in operation.

Instead of providing a bundle of fabric pieces with theirxfaces in 7 contact, other; arrangements vmay be used. Foriinstance, the pieces maybe wider and the side edges thereof; may be placed :together to give a wavy ,bundlewhich isifixedin :position on the .sectionsas described above, .or

one may provide a longstrip of :thefabricyroll the same into a flat. bundle and mount 'it as .de-

scribed herein; and if desired, the 'bundlemay'be formed into a'wavy. mass. The :fabric pieces may .be made of practically double-width and the side edges folded in until they substantially touch "and such a structure may "be compressed to iform -a wavy bundle. Instead of staggering .eachifabric piece of aibun'dle 1 to give :the angular effectythe individual pieces-of a bundlemay be in thesame .line but adjacent :bundles may :be staggered .to

give :a similar effect. ,In'such case, when *one :mounts two orimore bufiing wheels to form a unit, the bundles of adjacent wheels will interlock and give an unbroken bufiing surface.

Although the invention has been described with several specific embodiments thereof, they are intended to illustrate the many forms which can be devised within the principles herein set forth,

:and not to limit the invention. Therefore, the

invention is :to be broadly construed and .to be :limited only by the character 'ofthe claims appended hereto.

. mr ,1. A buffing wheel comprising a hub having a circular periphery, a'plurality of rim sections secured: to said hub and extending beyondsaid periphery, the plane of said sections being at an vangle "to the plane of said hub, a plurality of pieces of fabric in the spaces between adjacent sections, eachlpiece of fabric beingsubstantially in azplane passing through the'center of said hub,

saidfabric constituting a buffing surface, and

means for securing said pieces tosaid sections includingtongues inssaid sections,'said piecesbein stacked 'fromthe face of each section into contact withtheface of the adjacent section,extend ing peripherally of said hub, saidpieceshaving openings complementary to said tongues, the letter passing throughsaid openings.

2. A buiiing wheel comprising a hubhavingxa circular periphery, a plurality of rim sections secured to said hub and extending beyond said .pe-

riphery, the plane of said sections beingat an angle to the plane of said hub, a plurality of pieces of fabric in the spaces between adjacent sections, each piece of fabric being substantially in a plane passing through the center of said hub,

said fabric constituting a buffing surface, and

means for securing said pieces to said-sections including tongues in said sections, said piecesbeing 'stacked'from the face of each section into contact with the face of the adjacent section, extending sections, each piece of fabric being substantially ina plane passing through the center of said hub,

said fabric constituting a bufiing surface, and

means'for securing said pieces to said sections including tongues in said sections,'said pieces being stacked from the face of each section into contact with theiface ofujthe adjacent section, extending peripherally ofxsaidhub, said pieces having open *ings :complementary to said ftongues, the :latter passing through said open'ings rand anchored in recessesziin zthe adjacent section, the endsv of said tongues being offset.

1 4. A buffing'wheel comprising :a hub havingra circular periphery, 'a'plurality of rim sections secured to said hub-land extending "beyond said periphery,- :theip'lane of said-sections being at an angle toithe plane of said .hub, :a plurality of piecescf :"fabricin the spaces "between adjacent sections beyond'said periphery, each piece .of

fabric being substantially in a plane passing through :the center ofsaid hub, said fabric constituting abuffing surface, and means for securing said pieces'to said sectionsy-said pieces being stacked from the'face of each section-into contact with the vface'of the adjacent section, said "pieces and sections being at about 45 to said hub. I

;5. I A buffing wheel-comprising a hub having a circular periphery, a; plurality of rim sections secured to -said hub-and extending beyond said peripheryithe plane of saidsections'being at an angleto the plane-of said hub, :a plurality'of pieces of fabric in the spaces between adjacent sections, each piece of fabric being substantially in a plane passing through the center of said hub,. said fabric constituting :azbu-ffingsurface, andmeans for securingsaidpiecesto said sections including tongues in said sections, said pieces being stacked frorn'theface ofeach section into contact with cured to said hub and extending beyond said periphery, the plane of said-sections being at an angle to the plane of said hub, a plurality of pieces of fabric in the spaces between adjacent sections, each piece :of fabric being substantially in a plane passing through the center of said hub, said fabric constituting a bufiing surface, .andmeans for 'securingsaid pieces to said sections including tongues in said sections, saidpieces beingstacked-from the face of each section into contact with the face ofthe'adjacent section,.extendingiperipherally of said hub, said pieces :having I openings complementary to said tongues, the latter passing through saidopen- ,ings, said openings-being formed by displacement ofsaidtongues from saidrsections.

'7. Abuflingwheel comprising'a hub having a circular periphery, a plurality of-rim sections secured to said hub and extending beyond said perhiphery, the plane of said sections being at an angle to the planeof said hub, a plurality of pieces of .fabric in the spaces between adjacent sections, said fabric constituting a bufl'lng surface, said pieces and sections having corresponding-openings, bars passing through said openings, the ends of said-bars being hooked, said hooks being locked against a pair of said sections for securingsaid pieces to'rsaid sections.

8. A'bufiing wheel-comprising a hub having a circulariperiphery, aplurality of rim sections secured "to-said hub and extendingbeyond said periphery, .thepla'ne of said sections being at an angle to the planeof saidhub,-a plurality of pieces of fabric in theispaces between:adjacent sections,

said fabric constituting a buffing surface, said pieces and sections having corresponding openings, bars passing through said openings, the ends of said bars being hooked, said hooks being locked against a pair of said sections for securing said pieces to said sections and said bars passing through at least one additional section.

9. A buffing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, the plane of said sections being at an angle to the plane of said hub, a plurality of pieces of fabric in the spaces between adjacent sections, said fabric constituting a buffing surface, and means for securing said pieces to said sections, said hub having an annular periphery having pairs of alined diagonal slots in said periphery, each said section having a pair of depending legs fitting into a pair of slots, angular feet on said legs adapted to be bent to anchor said section.

10. A buiflng wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, the plane of said sections being at an angle to the plane of said hub, a plurality of pieces of fabric in the spaces between adjacent sections, said fabric constituting a bufling surface, and means for securing said pieces to said sections, said hub having an annular periphery having pairs of alined diagonal slots in said periphery, each said section having a pair of depending legs fitting into a pair of slots, angular feet on said legs adapted to be bent to anchor said section, and shoulders on said legs to limit the lower position of said section.

11. A bufiing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, the plane of said sections being at an angle to the plane of said hub, a plurality of pieces of fabric in the spaces between adjacent sections, said fabric constituting a buffing surface, and means for securing said pieces to said sections, said hub having an annular periphery having pairs of alined diagonal slots in said periphery, each said section having a pair of depending legs fitting into a pair of slots, angular feet on said legs adapted to be bent to anchor said section, and shoulders on said legs to limit the lower position of said section, the upper edges of said feet being a distance below said shoulders about equal to the thickness of said sub.

12. A buffing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections, said fabric constituting a bufling surface, said sections having cooperating openings, and means passing through said openings and fabric for securing said pieces between adjacent sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery.

13. A bufling wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces be- ,tween adjacent sections, said fabric constituting a buffing surface, said sections and fabric having openings therein and wires substantially concentric with said periphery and passing through the openings for securing said pieces to said sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery.

14. A buifing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, the plane of said sections being at an angle to the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections, said fabric constituting a buffing surface, said sections and fabrics having openings therein, and wires passing through the openings for securing said pieces to said sections beyond said periphery, the ends of said wires being crossed and underlying two of said sections to anchor said wires against displacement.

15. A bufiing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery, said fabric constituting a bufling surface, said sections having cooperating openings, and means passing through said openings and fabric for securing said pieces between adjacent sections, flanges on said sections, said flanges lying on said hub and being attached thereto.

16. A buffing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery, said fabric constituting a buffing surface, said sections having cooperating openings, and means passing through said openings and fabric for securing said pieces between adjacent sections, flanges on said sections, said flanges lying on said hub and being attached thereto by fasteners passing through openings in said hub and sections.

1'7. A bufiing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery, said fabric constituting a buffing surface, said sections having cooperating openings, and means passing through said openings and fabric for securing said pieces between adjacent sections, flanges on said sections, said flanges lying on said hub and being attached thereto by fasteners passing through openings in said hub and sections, pairs of adjacent sections having their flanges on opposite sides of said hub and being secured by the same fasteners.

18. A buffing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections beyond said periphery, a providing air space between the inner edges of said pieces of fabric and said hub periphery, said fabric constituting a bufiing surface, said sections having cooperating openings, and means passing through said openings and fabric for securing said pieces between adjacent sections.

19. A bufiing wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lying across the plane of said hub, a plurality of substantially flat, contacting pieces of fabric in the spaces between adjacent sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery,said fabric constituting a bufling surface, said sections having cooperating openings, and means passing through said openings and fabric for securing said pieces between adjacent sections, and spaces for air circulation between groups of pieces.

20. A bufling wheel comprising a hub having a circular periphery, a plurality of rim sections secured to said hub and extending beyond said periphery, providing air space between said sections and hub periphery, said sections lyin across the plane of said hub, a plurality of substantially flat, contacting pieces of fabrics in the spaces between adjacent sections beyond said periphery, providing air space between the inner edges of said pieces of fabric and said hub periphery, said fabric constituting a buffing surface, said sections having cooperating openings and means passing through said openings and fabric for securing said pieces between adjacent sections, projections on said sections extending into contact with said pieces to provide spaces for air circulation between groups of pieces,

HENRY H. BAHR.

I REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 310,799 Compton Jan. 13, 1885 455,277 1 Cummins June 30, 891 596,014 Condon et a1 Dec. 21, 1897 603,259 Compton May 3, 1898 648,890 7 Williams May 1, 1900 1,011,323 Courtney Dec. 12, 1911 1,475,074 1 McLaughlin Nov. 20, 1923 2,290,236 Hall July 21, 1942 FOREIGN PATENTS Number Country Date 12,399 Denmark Aug. 2, 1909

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