US1049309A - Tool-support. - Google Patents

Description

STATES PATENT OFFICE A LGERNON W. MATTHEWS, or HA'VERHILL, MASSACHUSETTS, ASsIGNoR To UNITED SHOE MACHINERY COMPANY, or PATEESON, NEW JERSEY; A coEPoRATIoN or ANEIN JERSEY Toon-SUPPORT.

Supecication ofLetters Patent.

Patented Dee. 31,1912.

Application mea May 2, 1910.. serial No. 558,788.

Toall whom may concern.'

v Be it known that I, ALGERNON WV.' MAT- THEWS, a citizen of the 'United'. States, resid- .ing at Haverhill, in the county of Essex and State Lof Massachusetts, have invented certain Improvements in Tool-Supports, of jwhich the following description, in connection With the accompanying drawing, is a specification, like reference characters on the ldrawing vindicating like partis in the figure. Y

This invention relates to a4 tool support applicable particularly to edge trimming and burnishing machines.

The invention is herein shown appliled to j the shaft of the rand cutter of a heel trimming machine.

the sole or heel edges of boots and shoes toy 2Q upon A'the character vof the work being op- It is necessary lin trimming or burnishing use tools of different thicknesses depending erated -4upon;l and such machines therefore Y v have provision for s upporting'a. variety of tools of differentsizes. -In one constructionV .in general use in rotary edge trimming machilies,- the cutter isv supported on a screwthreaded'stud that projects from the end of` the rotary shaft, thestud being long enough to accommodate the thickest cutter, and the 'cutteris clamped against the end of 'the shaft by a screw engaging the threads of' the'stud. If it is desired to use a thin cutter, 'it is necessary to place one or more washers or collars back of 'the cutter to hold it for- .Ward in clamping relation to the screw-.f

These washers frequently are misplaced; and, 4in any event, the operation of changing from'one size' of tool toanother with this arrangement requires considerable time.

In order to' avoid these disadvantages and to produce a more reliable construction, the present invention purposes providing a 'tiool support that will adjust itself automatlcally to the thickness of the tool. The nature of this invention will be .clearly understood from the following de-l scription andthe figure of the accompanying drawing, which isa side View partly in section of a tool support embodying 'thls invention.

Referring to the drawing, the shaft 2,

' which may be mounted and driven in any i. suitable manner, is provided with a cylinspring 10 interposed between and projects beyond, the end of the latter. .in annular recess-6 is formed in the shaft around the stud and extends backward-.ly

from the end of the shaft for a considerable distance.A This recess preferably` is formed by making the shaft in two sections as indlcated 1n the drawing, one sectionconsisting o'f a sleeve a fitted tightly onto a reducedl portion of the other section b, thus leaving A a recess between the. stud 4 and the sleeve;

The two sections are turned ,down to a uniform diameter to adapt the shaft for mounting in suitable bearings.'

cess 6mavbe formed in theend ofk an'integral shaft with the aid of a suitable' tool.

I A tubular sleeve 8 Yittilflg .snugly onto the stud 4 extends into the recess and forms the If desired, the redirect support forthe tool. vThe sleeve is pressed outwardly with its end normally projecting beyond the end l'of the' stud by a the bottom of the recess and the inner end of the sleeve. In order to preventthe sleeve from turning dinally at 12 and a short screw 14: threaded into a radial aperture in the shaft is positioned in theslot. The studd-has an axial screw-threaded hole formed in ceive a clampin'gscrew 16;

its end to re- The cutter 18-is placed onthe sleeve y8 with the shield 201against its outer end and relative to the shaft it is slotted longitu-v' the screw 16 is then turned in with its head bearing against the outer face of the shieldl until it clamps the cutter firmly against the end of the'shaft- 2. The shield pressing upon the end of' the sleeve forces the latter in against the spring 10 until the cutter strikes the end of the shaft'. The drawing shows in full lines the'posiions of the parts with a thickl cutter secured in place. The 'dotted lines in the ligure indicate the positions of the parts when a thin cutter is in place. It

will be obvious thatin each case the sleeve f of the tool used.

The screwlt holds t-he cut-ter against the shaft'with sutiicient 'friction to prevent its turning on the sleeve, but if desired, the cutter may be -splined to the sleeve or securedagainst turning in. any other convenient manner. The distance thatthe stud 4 adjusts itself automatically to the thickness .projects beyond the end ofthe shaft preferautomatically to adjust combination with a shaft, of a tool having a bore formed therethrough, a ,support entering the bo're of said tool, said support 'that suicient clearance will be leftl thatis to be used so to enof the thinnest cutter inseam coperating with said stud for clamping said45 tool against the end of said shaft.

-r In a machine of th e class described the able the screw ltoclamp any cutter against ,combination of a rotary shafthaving a the' @mi @fiile Sima. i

Having described my invention, claim as new and desire to secure by Letters Patent of the United States is l'. lIn a machine of the class described, the

combination with a shaft, of a ltool and a' said tool, said support being carried by the shaft and being constructed and arranged to adjust itself automatically to theA thickness of'the'tool. n

'2. In a machine ofthe class described, the

supportentering being carried by said shaftnand being constructed and arranged toadjust itself auto-y matically tothe thickness ofthe ',tool, and

[means for securingsaid tool to the shaft for l, movement therewith.

3. In a machine of the class described, the combinatioi. withfa shaft, of a tool, a support for said tool, and means for clamping 'the-tool to the sha-ft, saidsupport being confio ^ ness of the tool,

structed .and mounted to adjust itself automatically to clamping means 'and said shaft.'

4; n a-inachine ofthe class described vthe combination with a shaft, of a -toola device entering said tool and supporting thel saine, said device projecting from the end of the shaft` and being mounted for movement itself to the thick-- and means for clamping said tool against the endv of said shaft.

5. 'In a machine of the class described the combination with a rotary shaft having 'a screw-.threaded stud projecting from' its end,

of a sleeve axially adjustable on said stud and arranged to telescopewithin said shaft, a tool positioned on said sleeve and means .fill the'.v space between said,

.screw-threaded stud proj ectin from its end,

in its eiid'surro-unding said stud, a sleeve eX- tendi'ng into said recess and slidable on said stud, a spring interposed between the bottom of said recess and the inner end ,l of said sleeve and means for preventing said sleeve from turning on said stud. 7. In la machine of thel class described the combination of arotary shaft comprisinga sec ion having a concentrically .reducedportionand a cylindrical stud projecting lconcentricallv from the end of said portion,

and another section of tubular form. fitted tightly ontothe redu'ced portion o'f the first section whereby an .annular recess is formed between said tubular section and said stud, said stiid having a screw-threaded hole formed n its end, a sleeve slidably mounted on said studoandpartially .positioned in said recess, a-spiing interposedbetween the bot-- tom of said recess and the inner'end ofsaid sleeve, said sleevevliaving a longitudinal slot formed therein, a screw vprojecting through said slot to` prevent the'sleeve from tiirning, a rotary cutter mounted on said sleeve, a shield bearing against the outer endof said -cutter and a screw having engagementwith the threads of said stud and having its head i bearing against saidr shi'eld'tol clamp the -cutter between `the shield and the end of said shaft.

In testimony name to this speciication in thefpresence of two subscribing witnesses. l

ALGERNON WV. 'lVIAT'IHEVYS Witnesses:

JOHN H. MoCRnAnY,

JAMES R. `HoDDER.

whereof I vhave signed my.

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