US940869A - Hoop sizing and clamping device. - Google Patents

Description

I... GIBBS.

HOOP SIZING AND GLAMPING DEVICE.

nrmcnxon rum) JAN. 10. 1901.

Patented N0v.23, 1909.

I Am I IQ I I uwnaw. a. GRAHAM ca. PHOTD-UTMOQRAFNERS. WASHINGTON, n. c

UNITED STATES PATENT OFFICE.

LEWIS GIBBS, OF CANTON, OHIO, ASSIGNOR 'IO T HE GIBBS MANUFACTURING COMPANY, OF CAN'I'ON, OHIO, A CORPORATION OF OHIO.

HOOP SIZING AND CLAMPING DEVICE.

Specification of Letters Patent.

Patented Nov. 23, 1909.

Application filed January 10, 1907. Serial No. 351,638.

To all whom 'it may concern:

Be it known that I, LEWIS GIBBS, a citizen of the United. States, residing at Canton, in the county of Stark and State of @1110, have invented certain new and useful Improvements in Hoop Sizing and Clamping Devices; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this speclfication, and to the figures of reference marked thereon, in which Figure l is a top view showing the clamping and sizing parts in proper relative position with reference to each other, showing the movable clamping heads or blocks separated or moved away from the sizing disk. Fig. 2 is a top View showing a hoop properly sized and clamped. Fig. 3 1s a transverse section .on line 33, Fig. 1 looking toward the top of the sheet. Fig. 4c is a section on line 4t4: looking toward the left hand side of the sheet. Fig. 5 is a View showing the clamp and sizing blockoperating levers. Fig. 6 is a transverse section of the tread bars and a section of the clamping plate tread bar guide.

The present invention has relation to hoop sizing and clamping devices and it conslsts in the novel arrangement, hereinafter described and particularly pointed out in the claims.

Similar numerals of reference indicate corresponding parts in all the figures of the drawing.

In the accompanying drawing, 1 represents the bed plate which is supported in proper elevation by a bench or frame as desired. The bed plate 1 is provided with a central opening 2 in which central opening is located the disk or block 3, which disk or block is formed of a size and shape corresponding with the size of and shape of the inner surface of the hoop, when the hoop has been brought to its proper size and the severed ends of the hoop brought into position to be connected together by any suitable adhesive substance and temporarily clamped by means of the clamping device 4.

To the bed plate 1 are attached the guide bars 5 and 6, which guide bars are connected by means of the screws 7 or their equivalents, said guide bars being provided with the beveled or grooved inner faces, which beveled or grooved inner faces 8 are for the purpose of holding and guiding the sizing disk or sizing head 3 and are so formed for the purpose of providing a means for producing a uniformpressure as between the sizing disk or head 3, and the clamping blocks or plates 9. Below the bed plate 1 are located the L shaped lever or hell cranks 10, which are pivotally attached to the flanges 11 or their equivalents, said flanges being secured or formed integral with the bed plate 1. The upper members of the L shaped levers or bell cranks 10 are extended through the slots 12 formed in the bed plate 1, and into the openings or slots 13 by which arrangement a pivotal connection is brought about as between the L shaped levers 10 and the plates or blocks 9.

To the inner ends of the L shaped levers 10 are pivotally attached the links 14:, which links are extended downward and their bottom or lower ends pivotally attached to the top or upper end of the tread bar 15, which tread bar is extended downward and is pivotally attached to the foot lever or tread 16, which foot lever or tread is pivoted at one end to the floor or other place by means of the flange 17 or its equivalent.

It will be understood that when the foot tread 16 is pressed downward it will move or pull the tread bar 15 downward, which in turn moves the links 14 downward carrying with them the inner ends of the L shaped levers '10, thereby bringing the upper ends of said L shaped levers 10 toward each other and by reason of the connection of said L shaped levers 10 with the movable plate 9, said movable plates are moved upon the bed plate toward the sizing disk or block 3. Prior to the time the blocks 9 are brought toward the disk 3 the ring designed to be clamped while in an open or disconnected condition is placed in the position illustrated in Fig. 1, after which the foot tread 16 is brought down and by reason of the connections between the foot tread and the clamp blocks 9 said clamping blocks are forced toward the disk 3, which movement brings the hoop to its proper size and shape and at the same time forces or brings the disconnected ends of the ring into proper position, after which the clamp 4 is placed upon the hoop at the point where the ends are lapped and the clamp permitted to remain on the hoop until the lapped ends have become properly set or held together and connected by means of any adhesive sub stance, after which the clamp can be re moved.

It will be understood that in use the hoop should be brought into such a position that it will be properly clamped and sized and in order to temporarily hold the hoop and at the same time force any portion of the hoop that may extend above the tops of the sizing disk 3, or pressing plates or blocks 9, the fingers 18 are provided, which fingers are slightly curved upward so that they will engage the upper edge of the hoop and as the plates or blocks 9 are moved toward the block or disk 3 they will force the hoop down and upon the bed plate 1, at all points, or in other words the fingers serve to bring the hoop into the same horizontal plane as that of the disk or head 3 and the movable clamping plates or blocks 9.

It will be understood that after the hoop has been properly sized and clamped as illustrated in Fig. 2, it will be located around and in contact with the sizing block or head 3 and will remain in its sized position by reason of the lapped ends being properly set or held together and connected by any suitable adhesive substance after the movable plates or blocks 9 are brought into the position illustrated in Fig 1.

In order that the hoop may be easily released and free to be removed for the re ception of another hoop the sizing disk 3 is moved downward and brought into a horizontal plane below the upper surface of the bed plate 1, thereby freeing the hoop. The downward movement of the block 3 is brought about by means of a rod 19, which rod is fixed to the disk or block 3 in any convenient and well known manner and toits bottom or lower end is connected the tread bar 20, which tread bar is pivotally attached to the foot lever 21, which foot lever is pivoted in substantially the same manner as the foot lever 16, said levers 21 and 16 being preferably located side by side as illustrated in Fig. 3. The rod 19 is located through the guide 22, which guide is held in fixed position and proper location by means of the bars 23, which bars are securely attached in any convenient and well known manner to the bed plate 1 or its equivalent.

For the purpose of automatically elevating the disk or block 3 after it has been lowered to release the hoop the spring 24 is provided, which spring is connected at its bottom or lower end to the foot lever 21 and its top or upper end to the bed plate 1 or its equivalent. A spring 25 is also provided and is attached in a similar manner as the spring 24 and is for the purpose of automatically moving the clamping plates or blocks 9 away from the sizing disk or block 3, when the foot lever 16 is released.

It will be understood that in order to give an easy movement to the plate or blocks 9 the guide bars 5 and 6 should be so adjusted that little friction will exist as between the plates or blocks 9 and the guide bars 5 and 6 should be so adjusted that little friction will exist as between the plates or blocks 9 and the guide bars 5 and 6 and for the purpose of providing for this adjustment they are provided with the slots 26,- through which slots the screws 27 are passed and after the plates 5 and 6 have been brought into the proper adjustment the screws 27 are set so as to properly clamp the guide bars 5 and 6 to the bed plate 1.

For the purpose of providing room for the proper setting of the clamp 4 the disk or block 3 is provided with the recess 28 and the overlapped parts of the guide flange 6 cut away as illustrated in Figs. 1 and 2, thereby providing sufiicient room to properly clamp the clamp l.

It will be understood that the fingers 18 should not be extended beyond the concaved such an extent that they will interfere with the placing of the hoops in position to be sized and clamped but should be so extended that as the clamping blocks or plates approach each other the fingers will come into action in advance of the sizing and clamping plates or blocks 9.

I have illustrated the invention as applied to the formation of round hoops, but the shape and size of the hoops when finished may be of any desired shape and any desired size and the clamping parts formed of a size and shape to correspond with the size and shape of the hoop when properly formed and clamped.

For the purpose of better holding and guiding the tread bar 15 the clip 29 is provided, which clip is connected to the tread bar 20, and of course moves up and down with the tread bar 20, but the tread bar 15 is free to move up and down independent of the clip.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

1. In a hoop sizing and clamping device the combination of a bed plate provided with guide ways, sizing blocks slidably mounted in the guide ways, the inner edges of said sizing blocks being curved to fit a hoop to be sized, a disk located intermediate the slidable sizing blocks, means for moving the disk at right angles to the movement of the sizing blocks, fingers having their free ends turned upwardly and secured to the slidable sizing blocks, the turned up ends of the fingers overhanging the edge of the slidable blocks, means for operating the slidable blocks, and means for independently operating the disk.

2. In a hoop sizing and clamping device, the combination of a bed provided with guide ways, a pair of slidable sizing blocks operating in the guide Ways said sizing blocks being curved on their inner edges to substantially encircle a hoop, a disk operating in an opening formed in the bed and project-ing above the latter in a plane with the upper faces of the slidable blocks, a crank lever for each slidable block a vertical rod connected to the disk, a treadle connection attached to the rod, and means for operating the crank levers to cause movement of the slidable blocks independent of the movement of the disk.

3. In a hoop sizing and clamping device, the combination of a bed plate provided with guide Ways, a pair of slidable sizing blocks operating in the guide Ways, and formed with seats, the inner ends of the sliding sizing blocks being curved to embrace a hoop, a disk operating in an opening formed in the bed plate, and normally projecting above the plane of the latter, a treadle connection of two Witnesses.

LEWIS GIBBS. Witnesses:

F. WV. PREYER, A. J. GIBBS.

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