US894807A - Buffing-machine. - Google Patents

Description

r I PATENTED AUG. 4, 1908. 'A. BATES.'

BUFI'ING MJLXGHIBTIEH APPLICATION FILED um; 27, .90s;

. 27 712. v I /7. W MT/V55555. Ava/ mma a holder, an abrading element carried by the umrnn STATES PATENT ore-Ion. I

ARTHUR BATES, 0F LEICESTER, ENGLAND ASSIGNOR TO-SIDNEY W. WINSLOW. TRUSTEE,

, OF BEVERLY, MASSACHUSETTS.

BUFFING-MACHINE.

Specification-of Letter s Patent.

Patented Aug. 4, 1908.

I Application filed September 27, 1906. Serial No. 336,493.

Leicester, in the county of Leicester, Eng

land, have invented certain Improvements in Buffing-Machines, ofwhich the following description, in connection with the accompanying drawings, isa specification, like reflike parts in the several figures;

This invention relates to buffing and the like machines and artioularly to machines em(ployed for finishing the bottoms of boots an shoes.

An object of the inventionis to provide a bufling device in which the acting face of the buffing or abrading element is yieldingly supported by means which is certain and re iablein its operation and simple and inexpensive in construction.

To this end an importantffeature of the erence characters on the drawings indicating I invention consists in a rotatable abradingdevice comprising a holder, an abrading element, and-yielding means for supporting the 'abrading device against pressure of the work during operation.

More specifically the invention consists 1n the combination with a rotatable support, of

holder, a reinforcing plate for the abrading element, and means for yieldingly supporting the reinforcing plate against pressure of the work durin operation of the machine.

In the i1 ustrated embodiment of the invention the buffing device comprises a holder secured to a rotatable sleeve, an abrading element, and a reinforcing plate or support for the abrading element having a stem 'sli'din 1y mounted in the sleeve and acted upon y'a spring which forces the plate or sup ort against the abrading device so that said device may yield to the thrust of the work. A pad or'backing of rubber, felt, or the like may be interposed between the abrading element and-thereinforcing late,

if desired, and referably when such a ack-' "ing is used it w 1 be arranged to extend over 'the lowerface ofthe holder as well as over the reinforcing late. Infthedrawings, which represent a preferred construction embody ng this invention, Figure 1 is a side elevation and Fig. 2 1s a central vertical section.

' The sleeve 2, which maybe connected-in anysuitable way to the means for actuating Burns, a sub-- I thebuifing device,'is' provided with a collar 4 on itslower end, which has screw-threaded I cessed as at 15 to receive the reinforcin plate 16, which is shown as having an u war ly exin the/hub 6. This provision of the block 17 guided'in the hub allows the reinforcing plate to slide vertically, but prevents'loose rocking or lateral movement of said reinforcing plate. The plate is also provided with a stem 18 which extends upwardly through the hub 6 and the sleeve? and is acted upon by a which may be reg ate by adjusting screw rubber, eather,.or the like,'is shown. as interposed between the abrasive covering'on one side and thelower face of the clamping member Sand the reinforcing late 16 on the other side. The pad thus ridges the joint or space between said member 8 and the reinforcing plate and presents a continuous supportfor the abrasive 'covering. The reinforcing plate yielding'ly supports the abrasive covering against the thrusts of work presented to the buifingjdevice.

l A bufling device made in accordance with this invention has many of the desirable characteristics of such a device in which the abrading element is supported by a pneumatic cushion, while having the advantag that it is simple in constructionandnot liab to get out of order.

It will of course be understood that any convenient form of abrading element and appropriate holder may be used with this invention;

Having now fully explained'the invention, '1 claim as new and desireto secure by Letters Patent of the United States: I 1. In an abrading device, a holder, an abradin element, and a single spring for yielding-y supporting the abrading element against pressure of the work upon it.

tSJprinEZO, the tension of The lower member of the holder is re- 7o tending.cylindrioalblock 17 whic is'received 22. A ad or backing 24, which may be of 2. In an 'abrading device, a holder, an abradingelement, a stiff reinforcing plate for the a-brading element, and means for yieldingly' maintaining the reinforcing plate in position to support the abrading element against pressure of work upon it.

8. In an abrading device, an abrading element, a holder comprising means for clamping the abrading element at its edge, a plate for supporting the acting face of the abrading element, and means for yieldingly maintaining the plate in supporting position 4. In an abrading device, an abrading element, a holder comprising means for securing .the abrading'elementin operative position and having provision for supporting the marginal portion of the acting face of said element unyieldingly against pressure 'of work'upon it, and a plate for yie dingly supporting thecentral portion of the abrading element against pressure of the work.

5. In an abrading device, a holder, van abrading element, a reinforcing plate for the abrading element, means for yieldingly maintaining the reinforcing plate in position to suppprt the abrading element, and a pad or bac 'ng of yielding material between the plate and abrading element.-

-6. In an abrading dei icc, a holder comprising means for securing the abrading element in operative position and having-provision. for supporting the marginal portion of the abrading element, a yieldingly mounted plate for supporting the central portion of the abrading element, and a pad or backing ofyielding material arranged between the abrading element and the yielding plate and bridging the space between said plate and holder.

7. In a machine of the class described tne combination with a shaft, of an abrading device having its working face arranged perpendicularly to the shaft and comprising a holder, a reinforcing plate, an abrading element extending ovcrthe plate and secured to the holder, and a spring arranged against the late to support the abrading element yieldingly.

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

ARTHUR BATES.

Witnesses:

GRACE HoLMns, ARTHUR ERNEST JERRAM.

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