US1274366A

US1274366A - Buffing-machine.

Info

Publication number: US1274366A
Application number: US69453412A
Authority: US
Inventors: Lewis J Bazzoni
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1912-05-01
Filing date: 1912-05-01
Publication date: 1918-08-06
Anticipated expiration: 1935-08-06

Description

L. l. BAZZONI.

BUFFING MACHINE.

APPucATwN man 111AY1, 1912.

Patented Aug.l 6, 1918.

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LEWIS J'. BAZZONI, 0F SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, 0F PATERSON, NEW JERSEY,

A CORPORATION 0F NEW JERSEY.

peoic''ton of Letters Patent.

BUFFING-MACHINE.

Patented Aug. c, 191e.

Application mea'my 1, 1912. serial No. 694,534.

drawings indicating like parts in the several A figures.

This invention relates to abrading or polishing machines and is herein illustrated as embodied in a machine for buiing the bottoms of boots and shoes.

It is desirable that the bottom of a inished shoe shall be smooth and shall ossess what is known in the trade asa velvet finish. lt is almost universally the custom to buff the bottoms of shoes by presenting them in succession to two rolls located side by side upon a rotating shaft, and, when the velvet finish referred to above is desired, to subject them to the further operation of a pneumatic pad which raises the nap and thereby produces the desired finish.

@ne object of the present invention is to produce the nish without the additional operation, and to this end there are provided two buing tools arranged in proximity to each other whereby a shoe may be presented first to one and then to the other and means for causing the operative `faces of said tools to travel in opposite directions. In the illustrative embodiment of the invention these tools take the form of abrasive belts having operative faces of comparatively coarse and comparatively fine abrasive material respectively, the shoe being presented first to the coarse, which removes the grain of the leather and accomplishes the first part of the smoothing operation, and then to the fine which completes the smoothing operation and at the same time raises the nap to give the desired finish.

In all bufng machines a large quantity of dust is produced which, for obvious reasons, must be removed as effectively as possible,v and another feature of the invention consists in a plurality of abrasive belts arranged in PIOXmlty t0 each other and caused to travel in opposite directions and an ex haust pipe having its receiving mouth located in proximity to adjacent ortions of runs of the belts which are trave ing toward each other.

It is desirable, for reasons which will presently be set forth, that means be provided for pressing upon or supporting the belt'at selected localities, and other features of the invention consist of pressers which are caused, manually or automatically by the presentation of the shoe, to press upon the back of the belt and thereby support it in a selected locality.

These and other features of the invention including certain details of construction and combinations of parts will be described in connection with an illustrative machine and pointed out in the appended claims.

Referring now to the accompanying drawings Figure 1 is an elevation of a machine in which the present invention is embodied;

Fig. 2 is a perspective showing a portion of one of the abrasive belts, together with a shoe in the position which it occupies While the sole is being operated upon;

Fig. 3 is a rear elevation of a portion of one of the abrasive belts showing the position occupied by the presser to cause the the support while the top-lift of the shoe is being bui'ed.

' The base 1 of the machine is provided with a verticalarm 3 and two lateral arms 5 and 7. Pivotally mounted upon the arm 3 are two swinging arms 9 and 11 yieldingly upheld by springs 13 and 15 and carrying at their

outer ends pulleys

17 and 19. Cooperating with the pulley 17 are two smaller

fixed pulleys

21 and 23 mounted as shown, while

similar pulleys

25 and 27 coperate with the pulley 19. An abrasive belt 29 passes around the

pulleys

17, 21 and 23 and a similar belt 31 passes similarly around

pulleys

19, 25 and 27, it being understood that one belt has an operating face of coarser abrasive material than the other. Each belt/ thus has a horizontal run and two inclined or oblique runs. In the illustrative machine the

pulleys

25, 27, 23, and 21 are in alinement so that the lower or operative runs of the abrasive belts are located 1n a common plane. rIhis exact arrangement is, of course,

not essential provided that the operative portions of the belts are adjacent' so that a shoe may conveniently be presented first to are' driven by means of open and

crossed belts

43 and 45 respectively so that, as has been explained,the

abrasive belts

29 and 31 travel in opposite directions.

It frequently happens that there is a depression 1n the sole of a shoe and this is particularly liable to occur adjacent the breast of the heel'owing to the pressure exerted upon this portion of the sole during the heel- 'attaching operation.v In order to provide means .for buffing such depressed areas, pressers 63 and 65 in the form of frusto-conical wheels are angularly movable about pivots 67 and 69 and are arranged to be depressed against the .back of the belt by gravity.

when desired by treadles 71 and 73 which are connected by chains with the arms which carry the presser' wheels.. YSprings 72 and 74 normally hold the presser wheels in raised position. By using presser wheels of this particular shape it is possible, as will be evident from an inspection ofFig. 3, to bud 'a depressed area in the shank close up to the breast of the heel.

In buiing the toplift on a roll, as is commonly done, there 1s always a liability that the edges ofthe toplift will be rounded thus giving tothe finished shoe an undesirable appearance. If, in the present machine, the toplift were pressed against the unsupported belt a similarl effect, although probably of a less degree, might be produced. Ac-

cordingly, a flat' faced support 75 is pivoted at 77 to a bracket 79 which is clamped to the arm 7. Fast to this support is a heel rest 81 which extends along' the front face of the belt. The relative location of the pivot 77 andthe support 75 is such that the face of the support is .normally held lightly en now a Aheel of a shoe is placed upon said rest, as illustrated in Fig. 4, a force is thereby exerted to rotate the support about the pivot 77 and hence to press the support firmly against the back of the belt. Al-

though only one-such support has been 1 Lafrance shown, it is obvious that another'onesimibe mounted upon the other arm' lar to it may 5 if desired.' y K K It has been stated. above that one ofthe reasons .for locating the lower runs of the .belts as shownls to permit ready presentation ofashoe from'one to theother; This arrangement, however, serves 4the further purpose of yfacilitating the removal of the dust produced by the buling operation.' An

abrasive tool running athigh velocity draws with it in its movement a considerable amount-of the dust produced. In'the present machine, therefore, lthe dust will in a large part be drawn toward the center ont the machine'approximately in the direction of the travel. of the belts. In order to make use of this movement of the dust, an ex` haust pipe 83 connected with a blower 85'is provided with a flaring mouth which conforms to the adjacent outlines of the pulleys 23- and 27, said mouth, for the purpose of making the draft-more ei'ective, having a l partition 87 therein. The blower 85 may be driven in any convenient manner as, for example, by a belt 89 which passes over a pulley on the driving shaft 35. p

-Inorder to permit the"

abrasive belts

29 and 31 to be removed and replaced when de` sired, the arms 9 and 11 are'connected with treadles 91 and 93.

The operation of the device is as follows:

Considering that the right hand belt 29 has a surface of vcoarser- 'abrasive material than that of the belt 31 the shoe is rst presented to the lower run of the belt 29 in the manner illustrated in Fig. 2 and moved about by the operator until all portions in its surface have been' thoroughly dperated upon. If there are depressions in the sole, the operator depresses the treadle 73 yso as to bring the presser wheel 63 down upon the back of the belt and thereby force it into such depressions. During this part` of the operation the lgrain of the leather is removed but the ber or nap is all laid in one direction. rIhe sole is then presented to the left hand belt which completes the smoothing of the' surface of the sole and at the same time raises the nap to produce a velvet, inish. During this' timethe dustproduced by the operationof the belt is carried along to the'mouth of thev exhaust pipe 83 -through which it is drawn by the action of the. blower. In. orderto bul the toplift of a heel the shoe is pre-` .sented to the belt or belts in the manner illustrated in Fig. 4, and,- if necessary, a slight downward pressure is exerted upon the shoe so as to hold the support rigidly in place against the back of the belt.

Although the invention has been set forth inv connection with a particular machine, it should be understood that the invention is notv limited in the scope of its application to the particular machine shown and described.

Having thus described my invention, what I claim as newr and desire to secure by Letters Patent of the United States is 1, A machine of the class described having, in combination, a set of pulleys, la belt irunning around the pulleys of said set, a

second setof pulleys `having their ends inl substantially the same plane as those ofthe yfirst set, a second belt running around the pulleys of the second set, means for operating one pulley of each set to cause the operative runs of the belts to travel toward each other, pressers normally held out of contact with the back of the operative runs of said belts, said pressers being shaped to enter the angle between the sole of a shoe and the breast of the heel, and treadle operated means for moving said 'pressers into contact with the backs of said operative runs,

there being a free and unobstructed space beneath said operative runs to permit manual presentation of a shoe.

Q 'A machinel of the class described having, in combination, a plurality of butlin'g belts arranged in proximity to each other in position to permit a shoe to be presented manually first to the operative run of one and then to the operative run of the other, means for causing the operative runs of said belts to travel toward each other and an exhaust pipe common to the two belts and having its receiving mouth located in proximity to adjacent portions of the runs of the belts which are traveling toward each other.

3. A machine of the class described having, in combination, a plurality of buiiing belts arranged in proximity to each other in position to permit a shoe to be presented manually first to the operative run of one and then to the operative run of the other, means for causing the operative runs of said belts to travel toward each other, and a frusto-conical rotary member movable at will into and out of contact with the back of the operative run of one of said belts.

4. A machine of the class described having, in combination, a plurality of buiing belts having approximately horizontal operativey runs which are normally straight, there being a free and unobstructed space beneath said runs to permit manual resenta-` tion of a shoe rst to one belt an then to the other, means for causing said operative runs to travel toward each other, a presser located adjacent the backy of each belt at the operative run thereof and normally out of contact therewith, and treadle actuated means for causing either presser to contact instantly with the back of the respective belt and thereby force said belt downwardly at the point of contact.

5. A- machine of the class described havsupporting portion ing, in combination, a belt having an inclined run, a combined belt supporting and heel supporting member and a pivot connecting said member with the frame of the machine.

6. A machine of the class described having,.in combination, a belt having an inclined run, a fiat faced member pivoted to the frame of the machine and arranged to be held against the back of said belt by gravit said member being provided with a heel extending partially across the face of said belt.

A machine of the class described having, in combination, a belt having an approximately horizontal operative run, arranged to permit presentation thereto of the sole of a shoe, and an oblique run, means for actuating said belt, and a member having a flat face arranged to contact with the back of a portion of said oblique run and a portion for supporting the heel of a shoe with the toplift in contact with the face of said oblique run.

8. A machine of the class described having, in combination, two sets of pulleys arranged in the form of triangles with their bases approximately in alinement, belts arranged to travely one -around each set o pulleys, means for causing the operative runs of said belts to travel in opposite directions, yielding means'for sup orting one pulley of each set whereby the be ts are maintained taut, and treadle actuated means for moving said yieldingly supported pulleys in opposition to said yielding means.

9. A machine of the class described having in combination, a set of pulleys, a belt running around the pulleys of said set, a second set of pulleys having their ends located in substantially the same plane as those of the first set, means for rotating one pulley of each set in a direction to causel the operative runs of the belts to travel toward each other, said operative runs being approximately horizontal and terminating in upwardly extending runs, a pulley of one set being located in proximity to a pulley of the other set at the points at which the operative runs terminate, and an exhaust hood extending up between said last-named pulleys.

10. A machine of the class described having, in combination, a set of pulleys, an abrasive belt running around the pulleys of said set, a second set of pulleys having their ends in substantially the same plane as the Y back of the operative runs of said belts, said pressers being shaped to enter the angle between the sole of a shoe and the breast of Va heel, and manually operative means for e moving said presseis into Contact with the backs of said belts. ai

In testimony whereof l.' have signed my name to this specification in the presence of two subscribing Witnesses. v

,Y 'LEWIS J. Bazzom.4

Witnesses: v

' CHESTER ElRoGERs,

MABEL A. SWEET.