US755388A - Buffing-roll. - Google Patents

Description

PATENTED MAR. 22,-1904.

M. PREVOST. BUPFING. ROLL. APPLICATION FILED NOV. 1. 1902.

'10 MODEL.

. PHOYO-LIT wnsummomn. c.

UNITED STATES Patented March 22, 1904.

PATENT OFFICE.

MAGNUS PREVOST, OF HAVERHILL, MASSACHUSETTS, ASSIGNOIR OF SEVEN-TENTHS TO HENRI E. PREVOST AND LOUIS F. ROGER, OF

HAVERHILL, MASSACHUSETTS.

BUFFlNG-ROLL.

SPECIFICATION forming part of Letters Patent No. 755,388, dated March 22, 1904.

Application filed November 1, 1902.

To all whom it may concern:

Be it known that I, MAGNUS PREVOS'I, of Haverhill, county of Essex, State of Massachusetts, have invented an Improvement in Buifing-Rolls, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a form of buflingroll for bufiing the bottoms of shoes.

The common form of buffing-roll in general use has the two semicylindrical sections thereof made of wood and hinged together by common strap-hinges the pivots of which are at the surface of said sections, the ends of the sandpaper or emery-cloth being bent in between the sections and held thereby when the sections are locked together. It sometimes happens that the locking means for these sections becomes detached while the machine is in operation, and as the speed at which the shaft rotates is very high the roll is thrown open with so much force as to loosen the hinges and throw the roll out of true, rendering it useless.

The object of my invention is to provide a form of bufiing-roll which shall be rigid and durable and which shall be so constructed that there is no liability of the roll being thrown out of true in case of accident.

A further object of my invention is to provide a convenient and effective means for securing a canvas strip to which the felt cushion is attached to the surface of the roll so that the strip may be drawn tightand secured in placeinsuch a manner that it will not be: come readily loosened.

For a more complete understanding of my invention reference is made to the accompanying drawings, in which Figure 1 is an elevation of a buffing-roll made according to my invention with certain parts thereof brokenaway. Fig. 2 is a central longitudinal cross-section thereof on the line 3/ yof Fig. 1. Fig. 3 is an end view showing the roll closed. Fig. 4: is a cross-section on the line y 3 of Fig. 1. Fig. 5 is an end View showing the roll open, and Fig. 6 is an Serial No. 129,662. (No model.)

1, 2, 3, and 1, respectively. Said sections .have overlapping ears 1", 2, 3, and 4:, re-

spectively, and a hinge-rod 5 extends longitudinally of the roll, passes through ears 1 and 3, and is secured at its ends in the ears 2 and 4c. Said rod is shouldered at the point where it enters the ears 1 3, so that when the parts are secured together the rod 5 cannot move longitudinally with respect to the roll, yet the sections 1 and 3 may swing thereon. The rod 5 is preferably clamped to the sections 2 and 4 by screws 5. The sections 2 and 4c are provided with integral rings 24 4: by means of which the roll may be secured to the shaft. Two stiff bars 6 and 7 are rigidly secured to the sections 1 and3 and 2 and 4:, respectively, at opposite sides of and closely adjacent to a plane through the axis of the roll and the center of the hinge-rod 5.

A pair of semicylindrical felt-supports 8 and 9, of stiff sheet metal, are rigidly secured at their ends to the sections 1 and 3 and 2 and 4, respectively, each support terminating at one side edge a short distance from the bars 6 and 7, respectively, so as to form slots 10 and 11 therebetween, as shown in Figs. land 5. Their other side edges are oppositely beveled and terminate at a short distance from each other adjacent the center of rod 5, so that when the roll is opened said edges will not come into engagement or pinch the canvas covering, to be described.

The bars 6 and 7 are set into notches in the collar-sections to which they are attached, so that their outer surfaces are substantially on a level with the outer surfaces of the supports 8 and 9. The bars 6 and 7 are each provided with a series of transversely-projecting teeth or brads 13 and let, which are rigidly secured therein, said brads being so arranged that when the roll is closed the brads of one bar will overlap and lie close to the surface of the other bar.

A strip of canvas 15 is tightly stretched over the surface of the supports 8 and 9 and cemented thereto, the ends of the strip preferably terminating at the beveled sides of the supports, as indicated in Figs. 3 to ,5, and said strip extending in opposite directions from these points through the slots 10 and 11 about the bars 6 and 7, and back upon itself, so that a doublethickness of canvas is provided over the supports. As the bars 6 and 7 are removable, the canvas may readily be placed in this position and drawn taut by the bars when they are secured in place. The doubled portions of this canvas are cemented together, as well as to' the surface of the supports, and a thick layer of felt 16 is then cemented to the surface of the canvas, the ends of said felt terminating at the edges of bars 6 and 7 and being secured to the bars by wire thread 17, which is passed through the slots 10 and 11 and "about the bars each time it is passed through the felt. 'Wires 18 may be passed throughapertures inthe supports 8 and 9, the convex'strip thereby providing additional securing means for said strip. A sheet of sandpaper '19is then wrapped over the felt and its ends'are inserted between the bars 6 and 7,

whichfirmly'grip the sheet and hold itin-place, the brads 13 and 14 also constituting additional securing-meanstherefor. The weight of the 'bars6and 7 is such that they will substantially counterbalance the pivot-rod 5, which is oppositely located therefrom. Small pieces of metal maybe attached to the inner surface of the supports 8'and 9 if the roll should not happen'tobeperfectly balanced, this construction making it easy and possible todo so.

From-the foregoing description it will be 'seenthat'a very-rigid construction is produced which'is capable of bearing any strain or usage to which it "is'likelyto be put without impairingits usefulness.

'The particular form .of pivotal connection between the two sections of the roll is an important feature of myinvention, as thiscon- 'nection will 'not be injured if the roll should become unlockedaccidentally while the roll is rapidly rotatin g.

Having thus described my invention, whatI claim as "new,and desire to secure by Letters Patent, is-

' 1'. Abufiingwoll-havingtwo semicylindrical "sections pivotally connected at one side of its axis, each section havinga longitudinally-extending slot opposite said pivotal connection, a textile strip passing over the surface of said sectionsa'bout'the meeting edges thereof-opposite said pivotal connection, and through said slots "with its end portions connected to its intermediate portions, and a cushion secured to said strip, substantiallyas described. :2. A -bufiing-roll having two sem icy-lindrical "sections pivotally connected at one side of its axis providing meeting edge portions at op posite sides of said axis, one of said edge portions consisting of a longitudinally-extendingbar removably connected to one of said sections, each section having a longitudinally-extending slot opposite said pivotal connection, a textile strip passing over the surface of said sections about said bar and the opposite meeting edge of the other section, and through said slots with their end. portions lying between said surface and the intermediate portions thereof, and a cushion secured to said strip, substantially as described.

3. A bufiing-roll having two semicylind rical sections pivotally connected at one side of its axis, a pair of clamping-bars removably connected to said sections at the opposite side of said axis and adapted to be brought into engagement when the roll is closed, a textile strip passing over the surface of said section, and about said bars, and a cushion secured to said strip, substantially as described.

1. A buffing-roll having 'two end collars, each comprising two semicircular sections having overlapping ears at one side of the axis of the roll, a rigid pivot-rod passing through each of said ears and means for holding said rod from longitudinal movement with relation thereto, a pair of removable clam-pingbars and a pair of semicylindrical sheet-metal supports, each bar and support being rigidly secured at one end to one section of one collar and at the opposite end 'to the corresponding section of the other collar, said bars being arranged opposite said pivot-rod, a textile strip passing over said sections and about said bars and a cushion connected to said strip, substantially as described.

5. A-buffing-roll having 'two end collars each comprising two semicircular sections having overlapping ears at one side of the axis of the roll, a rigid pivot-rod passing through each of said ears and having shoulders which engage the inner ears of said sections, a pair of clamping-bars and apair of semicylindrical sheet-metal supports, each bar and support being rigidly secured at one end to one section of one collar and at the opposite end to the corresponding section of the other collar, said bars being arranged diametrically opposite said pivot-rod, and their upper sides being substantially on a level with the surface of said supports and at such distance therefrom as to provide longitudinally-extending slots therebetween, a textile strip passing about said bars, through said slots and over the surface of said supports, to which it is secured, and a felt cushion secured to said strip, substantially as described.

'In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MAGNUS PREVOST. Witnesses: LoUIs H. HARRIMAN, MAUI) M. PIPER.

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