US2562688A - Ventilated spoke-wheel buff - Google Patents

Description

H. H. BAHR VENTILATED SPOKE-WHEEL BUFF July 31, 1951 2 Sheets-Sheet 1 Filed Dec. 16, 1948 INVENTOR. Have) 6. 6/1/70? y 1 H. H. BAHR 2,562,688

VENTILATED SPOKE-WHEEL BUFF Filed Dec. 16, 1948 2' Sheets-Sheet 2 1N VEN TOR. Maw/er 6'. 6mm

Patented July 31, 1951 Guaranteed Buff 00., Inc.,, New York, N. Y., a. corporation of New York .ApplicationJJecember.16, 1948, Serial No. 65,621

.10 Claims. (Cl. 51. l 93) The present invention is directed --to bufiing wheels, more'particularly to an improved -,c onstruction of such wheels Wh ereby long life-and adequate ventilation during operation are ob- 'tained.

In my co-pending application, SerialNo. 34,574, filed June 22,1948, which issued as Patent ;No.

2,559,385, dated July 3,1951, andentitled TGonstruction of Buffing Wheel, I have desc-ribedand claimed :a' buffing wheel in which aroll of fabric containinga plurality of layers is foldedon itself to form a cylindrical. roll and metal. pieces are introduced into the fold and extending below the same. The free ends of said metal pieces-are anchored in a suitable base which maybe ofdisk or annular form whereby the roll of fabric is formed into a series of folds with a space between the base and the inner edge of the fabric to provide ventilation. .Such .a construction has been found to'be practical and to have a long life. However, further developmentof the :type

ofstructure shown in-said applicationzfor. patent has been made and improved bufllng wheels have been produced.

It is among'the objects .of the present invention to provide a buffing wheelof the ;general type described above, in --which the means sfor mounting are simple ,and efiective to ihQld-the H fabric in its proper position without han er of displacement.

It is also among the objects of the present invention to provide astructure of the t pe. described in which a plurality of :foldedsetsof fabric may be mountedona single base to;pr ov ide a relatively wide and/or uroreuniform ;bn ffing I ,face.

predetermined number of turnsand then fold- ;ing the;roll of;fabric on;itselfatgapproximately its-transverse centerl-ine, thus doublingthe numberof layersor plies of;fabric. ,A series, of openings of suitable size and shape are madedn the fold of the roll for theapassage of. suitable metal or other pieces which act as mounting means for the fabric on thebase. 'I'hemetalpieces are preferably madeofwireusually cireularin crosssection andbent so as to be in the shape of a series of inverted jU s, the legs of which are, bent to form hooks or the like. Each-:of the ;:pieces is insertedthrough a pair of. openingsin theroll :with the hooks extending :below the; same- .:A

series pfholes are provided near the periphery 0f thedisk and the hook members are introduced into theholesa-nd clamped in position. Usually a line of stitching is provided just above the fold -in;thefabric,either beforeor after the Wire pieces are inserted,in order to prevent movement of, the

fabric with relation to the metal pieces and the friction resulti ngfrom such-.movement. Variations of such structures are. contemplated.

In the accompanying drawing constituting a part'hereof, and in which ;like\reference characters indicate like parts:

Fig. 1 is a side. elevational view of .a buffin wheel made in accordance with the present invention,some of the parts beingbrok 'en away for l nes Fig. 1-a is a fragmentary. cross-sectional .view

taken through the metalpieces of Fig. 1;

Fig. :2 is a vertical cross-sectionalview of .an

assemblyof a plurality ofbufilng wheels on-a shaft and adapted for operation,'.some .parts being shownin elevation and'otherparts being broken away;

Fig. 3- is a perspective View of a folded cylindrical roll of fabric prior tomounting the same o n the phase;

Fig. 4 is a view similar to Fig. 1, showing a somewhat modified formof the invention;

Fig. :5 isra, fragmentary perspectiveviewof a portion of the baseshowing the manner in which the U.-.-shaped metal pieces are anchored therein;

Fig. .6 is a fragmentary-elevational view taken alongthe line ii- 601 Fig. 4;

Fig.7 is aview similar to Fig. 4, showing a still further modification of the invention;

Fig.8 is an elevational view taken along the line 8-0 of Fig. 7;

Fig. :9 is a fragmentary perspective view of Fig. 7,. showing the manner in which the U-shaped metal pieces are anchored in the'base;

Figs. .10, li and- 12 are fragmentary perspective views of;the rol1, of'fabric-showing the folded ed ehereo an t 1 ar ou a ran me pan openin fo m u t n the U sh e i ee theremam 1131s rirasmeniarv; erspeei ve view-c a f r h .n ene r r .Ref r risat h modific on how i F ie 1'to 3, the: base-consists of gdisk l-rnounted on r h f I n h in se ie o rel e i eace ho e n a th pe phe a h ree A str ne bias 1011b fabric '4- is rolled into a cylinder of i one .---.or more layers and foldedat.5l30if01ma double number oflayers .of fabric presenting .the ,free

edges of. said fabric-etc; articles-:to-be buffed. ..A

'in contact with said shoulder.

series of openings 6 are formed along the fold 5 through all of the layers of fabric, the size and shape of said openings being of any desired type suitable for the purpose. There are provided a series of metal pieces I usually formed from round wire, having a pair of legs with a connecting portion, the legs extending through pairs of openings 6 and the connecting portion contactin with the inner side of fold 5, thereby holding the fabric with respect to the metal pieces I. Usually the metal pieces are first inserted into opening 6, as shown in Fig. 3, and then a line of stitching 8 is provided just above said pieces in order to prevent accidental displacement thereof. In some cases the line of stitching may be first made and the metal pieces inserted into the pairs of openings 6 thereafter.

The roll of Fig. 3 is then mounted on base I as shown in Fig. 1. A metal member having legs 9 and I and connecting portion II has leg 9 inserted in a hole 3 and the hook I2 thereof bent to anchor it in position. At the same time, leg I0 is inserted in a hole 3 spaced from the firstmentioned hole by two intervening holes and hook I2 bent to clamp the leg ID in position. Another metal member having legs 9 and III is similarly mounted with leg 9 in the hole 3 adjacent to leg III, and leg III in the hole 3' one removed from leg III. The next adjacent metal member has legs 9" and III" mounted in holes 3" ad- I jacent to legs 9' and I0, respectively. Similarly, the other metal members are anchored all around the periphery of base I. Each of the metal members is bent so that the connecting portions II,-

II, etc. are in a plane at an angle to the plane of disk I. Thereby the folds I3 of fabric 4 are at an angle to the plane of said disk. This spreads the buffing surface over a considerable area, many times greater than the thickness of the fabric when flat. Thus a highly satisfactory buffing surface is formed.

In mounting a plurality of bufling wheels for use on a shaft as shown in Fig. 2, the shaft is provided with a shoulder I4 and a flange I5 having a diameter approximately equal to the diameter of disk I is mounted on the shaft and Then a buffing wheel is mounted in contact with flange IS. A spacer disk I6 of the same diameter is placed against the opposite face of the mounted buffing wheel and a second buffing wheel mounted against the opposite face of spacer I6. Anouter flange I I is then placed against the outer face of the second buffing wheel and a nut I8 is tightened on the shaft to form a bufling unit having two bufling wheels operating as a single unit. Elements I5 and I8 have a vise-like clamping action on the disks and hooks. A single wheel may be thus mounted or a greater number may be placed on the shaft as required. The spacer may be of such thickness that the fabrics 4 of the wheels are spaced apart and just touch each other or the plurality of wheels may be so mounted that the folds I3 of one buffing wheelinterlock with the folds of an adjacent bufiing wheel, thus forming a more solid fabric bufllng surface.

In the modification shown in Figs. 4, 5 and 6, the base is a disk I having openings 3 but'the fabric is mounted on the U-shaped metal members in a different manner. A roll of fabric is formed as shown in Fig. 3, and ifdesired the metal pieces may be mounted therein before stitching is resorted to. The spacing of the pairs of openings in the fabric at fold 5 is :wider --than the distance between legs of the metal pieces I, thus forcing the fabric to form ruflies'. This way, instead of providing folds I3 in the fabric, the roll is rufiled to form rutlles 2D, and a line of stitching 2I holds the ruflles in position. The fabric containing the metal pieces is mounted on disk I, as shown more particularly in Fig. 5, with the plane of the metal pieces being adjacent to and practically coinciding with the plane of disk I. In the structure of Fig. 4 the number of holes 3 may be reduced to accommodate only the metal members as shown in said figure.

In the modification shown in Figs. 7, 8 and 9, a roll of fabric such as that shown in Fig. 4, is provided and is similarly mounted. A second roll of fabric 4 similarly mounted on U-shaped metal pieces and the like is mounted on disk I. The mounting of fabric 4' is from the opposite side of the disk. As shown in Fig. '7, metal pieces 22 of fabric 4 have the hooks thereof extending from the back of disk I and onto the face thereof. Metal pieces 23 of fabric 4 enter holes 3 on the -face of disk I and the hooks are bent around at the back thereof. In this modification the fabrics 4 and 4 may be in actual contact with each other or the metal pieces of the fabric 4 may be bent to one side of the plane of disk I as shown in Fig. '7 and the metal pieces of fabric 4 may be bent to the other side of the plane of said disk as shown in Fig. 7, whereby the fabrics are spread somewhat apart and provide a relatively wider face for buffing purposes, and a greater circulation of air.

In place of the rufiling as shown in Fig. 4, the gathering or rufiIes may be formed by the spacing of the openings at the fold of the roll of fabric. In Fig. 10 there is shown a series of openings 24, 25, 26 and so on all around the roll of fabric. These openings are equally spaced and the distance between them is greater than the distance between the legs of a metal piece as shown to the left of Fig. 10. When the legs of a piece are introduced into openings 24 and 25, it automatically causes a ruffling or wrinkling of the fabric so that the effect shown in Fig. 4 is thus obtained. If the holes are spaced equal to the distance between said legs, then the ruflles are formed between the adjacent metal members.

A further modification of the spacing of the openings is shown in Fig. 11. A pair of openings 21 and 28 is provided, the distance between them being greater than the distance between the legs of a metal piece. There is provided a pair of auxiliary openings 29 between openings 21 and '28 so that the connecting portion of metal piece I may be threaded through openings 29 andthen inserted in opening 23. By this'arrangement, the same wrinkling or ruffling effect is obtained as in Fig. 10 but the fabric is held more surely against displacement by the intermediate threaded portion. The adjacent sets of openings are similar to those just described and the opening 28 of one set is relatively closely spaced from opening 21 of the adjacent set in order to minimize the portion of the roll of fabric which is not ruflled.

In the modification shown in Fig. 12, the pairs of openings 38 and 3i of one set are quite close to opening 30 of the adjacent set as so to minimize the unrufiled portion of the fabric roll.

There are a number of advantages inherent in the present structure in that because of the relatively small diameter of the wire, a relatively small portion of the space between the fabric and the base is occupied, leaving more space'for structure and minimizes any tendency for relative movement between the fabric and the base. The use of wire greatly decreases the cost of production in that there is no waste, and the wire may be cut off-and readily bent to the proper shape on standard automatic machines. By the use of a U-shaped metal piece, the labor involved in assembling the buffing wheel is simplified. The anchoring of the metal pieces on the base may be accomplished by a single operation, thus reducing the labor involved in the operation. Because of the rounded surfaces of the wire, dust or lint is not easily deposited on'such surface and thus there is less danger of a stoppage of the flow of air due to clogging of the wires.

The use of flanges on the sides of the'bufiing Wheel to mount the same on a shaft provides greater strength and more rigidity in'ope'ration.

Although the invention has been described setting forth several specific embodiments thereof, the invention is intended to be broad and the several modifications are intended to illustrate the breadth of the invention. Various changes in the details may be madewithin the spirit of the invention, as for example the size and shape of the spacers between the multiple buifing wheels may be varied in order to give desired effects. The base need not be a simple disk but other forms of bases may be used, strengthening ribs may be formed therein-and flat rims may be provided thereon, if desired. Elementsmay be added to the structure, as for example in order to supplement the stitching of the fabric to hold the metal pieces in their proper positions or even in place thereof, clips may be pressed over the folded end of the fabric roll-and over the connecting portion of the metal pieces to grip the latter and prevent the movement thereof relative to the fabric. Such clips may be individual members for each metal piece or a continuous strip of material bent over and clamped atjsuitable intervals may be used; Eyeletsmay be provided in openings 6 to add'strength to the assembly. The buiiing'surface may be'made up of a series of folded or ruffled fabric units, each mounted on one or more metal-members secured to the disk. Or one small doubled-up roll of fabric may be mounted on one or more metal members, and a series thereor secured to the disk. Instead of the hooks on the metal members and holes in the disk, the ends of the legs may be welded or otherwise secured to the face of the disk; or two disks may be provided with the ends of the legs clamped between them, and such ends may have heads fitting into recesses or holes in the disks to anchor the metal members; and all these structures are considered to be the mechanical equivalent of the hook-and-hole arrangement.

Combinations of several of the features of the various modifications may be made, such a combination being shown in Fig. 13 in which the effect of the two pieces of fabric of Fig. 7 is combined with the fold arrangement of Fig. 1. In this case the roll of fabric is made larger than in Fig. 1 and it is associated with U-shaped hooks 1 so as to provide folds 32 at one side of 6 the plane of disk I with the hooks entering said side, and alternatefolds 33at the other side with the hooks'entering said other side.

I claim:

1. A buffing wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having :a plurality of sets of openings in said doubled up portion,

U-shaped metal members each having a substantially fiat base and a pair of legs, said legs'passing through said openings and said base being held in said doubled'up portion, said'hub having'holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between said members in said fabric being greater than the distance between the-sets'of holes into which the hooks of said members pass, whereby loose radial rufiies are formed'in said fabric. 7

2. A' buffing wheel comprising-a disk-like hub, a single cylindrical roll of-fabric doubled up along its center periphery and having aplurality of sets of openings in said doubled up portion, U-shaped metal members each having a substantially flat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between said members in-sa'id fabric being greater than'the distance-between the sets of holes into whichthe hooks of said members pass, whereby loose radial ruflles are formed in said fabric, the inside edge of said fabric being spaced from the periphery of said hub to provide air-passage into said ruffles.

3. A buffing wheel comprising a disk-like-hub, asinglecylindrical roll of fabric doubled up along its center periphery and having a plurality of sets of openings in said doubled up portion, U-shaped metal members each having asubstantially flat base and a pair of legs, said legs passing through said openings and said base beingheld in said doubled upportion, saidhub having holes at its periphery, theends of said legs having hooks thereon, fsa'id hooks passing through said holes,the distance between saidmembers in said fabric being greater than the distance between thesets .of holes into which the hooksof said members fpass,'whereby loose radial ruffles are formed in said fabric, the hooks of each member passing through non-adjacent holes with at least two intervening holes.

4. A bufling wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having'a pluralityof sets of openings in said doubled up portion, U-shaped metal members each having a substantially fiat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between said members in said fabric being greater than the distance between the sets of holes into which the hooks of said members pass, whereby loose radial rufiies are formed in said fabric, the plane passing through said base being at an angle to the plane of said hub and said rufiies being at said angle.

5. A buffing wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having a plurality of sets of openings in said doubled up portion, U-shaped metal members each having a substantially fiat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between said. members in said fabric being greater than the distance between the sets of holes into which the hooks of said members pass, whereby loose radial rufiles are formed in said fabric, the plane passing through said members being substantially parallel to the plane of said hub and said ruflies being parallel thereto.

6. A bufling wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery andhaving a plurality of sets of openings in said doubled up portion, U-shaped metal members each having a substantially flat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between said members in said fabric being greater than the distance between the sets of holes into which the hooks of said members pass, whereby loose'radial ruffles are formed in said fabric, the plane passing through said members being substantially parallel to the plane of said hub and said ruffles being' parallel thereto, alternate ruflles being on opposite sides of said hub plane. Y

7. A bufling wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having a plurality of sets of openings in said doubled up' portion, U-shaped metal members each having a substantially flat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between the legs of each member being less than the spacing of the corresponding openings in said fabric, whereby loose radial ruffies are formed in said fabric.

8. A hurling wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having a plurality of sets of openings in said'doubled up portion,

U-shaped metal members each having a substantially fiat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said 8 holes, the distance between the legs of each member being less than the spacing of the corresponding openings in said fabric, whereby loose radial ruffles are formed in said fabric, the plane passing through said members being substantially parallel to the plane of said hub.

9. A bufllng wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having a plurality of sets of openings in said doubled up portion, U-shaped metal members each having a substan-; tially fiat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes.

at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between the legs of each member being less than the spacing of the corresponding openings in said fabric, whereby loose radial rufiies are formed in said fabric, the plane passing through said members being substantially parallel to the plane of said hub, a second similar roll, said rolls being mounted on opposite sides of said hub.

10. A bufiing wheel comprising a disk-like hub, a single cylindrical roll of fabric doubled up along its center periphery and having a plurality of sets of openings in said doubled up portion, U-shaped metal members each having a substantially flat base and a pair of legs, said legs passing through said openings and said base being held in said doubled up portion, said hub having holes at its periphery, the ends of said legs having hooks thereon, said hooks passing through said holes, the distance between the legs of each member being less than the spacing of the corresponding openings in said fabric, whereby loose radial rufiles are formed in said fabric, auxiliary openings in said doubled up portion, said bases being threaded through said auxiliary openings.

- HENRY H. BAHR.

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

V UNITED STATES PATENTS Number

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