US1351290A - Heel-scouring machine - Google Patents

Description

R. L.-GREENLE[\F HEEL SCOURING MACHINE.

'APPLICATION' FILED JUNE 17, 1918.

1,35 1 ,290, Patented Aug. 31, 1920.

2 SHEETS-SHEET l- R. L. GREENLEAF.

HEEL SCOURiNG MACHINE APPLICATION FILED JUNE 17, 1918.

1,351,290. PatentedAug. 31,1920. 7

2 SHEETS-SHEET 2- avwwptoz A rfiu q, Mama s being removed;

UNITED A 5 EU 'ERT L. GREENLEAF, or cAMB aIneE, ivressncriusnrr's. I I

v Application filed June 17,

To aZZ'whom it may concern:

Be it 'known that I, RUPERT L.- GREEN- LEAF, a citizen of the United States, residing at Cambridge, in the countyof Somerset and State of Massachusetts, haveinvented certain new and useful Improvements in Heel-Securing Machines, of which the following is a specification. r

My invention relates to machines for scouring the breasts of shoe heels and its object is to provide a simple and easily operated machine by which all heels will be scoured alike, no feather edge will be left on'the heel, and the operator may finish the heel without moving from his position. Such a machine is illustrated in the accompanying drawings and will be hereinafter fully described, the invention residing in certain novel features which will be 'particularly pointed out in the claims.

In the drawings,

Figure 1 is a side elevation of a machine embodying the invention;

Fig. 2 is a plan view with parts in horizontal section;

Fig. 3 is a front elevation, the form plates Fig. 41 is a detail perspective view of a form plate and the plates by which the abrading members are secured thereto.

In carrying out the invention, I employ a substantialvv frame or standard 1 having its upper portion bifurcated, as shown at 2, and provided with bearings 3 for a drivingshaft 4. Fast and loose pulleys 5 and 6 are fitted on the driving shaft between the bearings 3 and, on the front of said shaft is a crank disk 7 On the front side of the frame a are projections 8 constituting guides for a reciprocatory carrier rod 9, and a link or pitman 10 has one end pivoted to saidrod and its opposite endpivoted eccentrically to the crank disk, as shown most clearly in Fig. 1.

Secured to and'projecting forwardly from the carrier rod 9, are supporting arms 11 having their front ends offset, as at 12,-

whereby the polishing or scouring instrumentality will be properly disposed for convenient and successful operation. The scouring or polishing tool comprises a form plate 13, a cushioning cover or pad 14, abrading members 15, and clamping plates. 16. The form plate is a rectangular metal blank curved or otherwise shaped transversely, as indicated. at 17, so that it will conform to nnnL-sconnmsiyracnmn.

c s ec fieantn (if teaeiseaea. Patented Aug'31,

1918. SerialfNo. 240,405.

f e-f tm;QE EJJ the shape of the heelbreasaitbeing ai' iii tention toprovide a plurality of formpl ates which may be used interchangeably. 1 The form plate is covered with felt "or other yieldable material to provide. the cushion or pad Hand the abrading membersl5, which are preferably strips of emery" paper, are drawn smooth'over the'pad. The clamping plates or strips 16 ofmetal or other rigid material are placed over the edges of the" abrading members against the back of the form plate and secured in placeby screws orbolts 18 and 19, the screwsl9 also secur ing the device to the offset ends 12 of the supporting arms 11.

member is finer than the lower member.

Below the scouring tool, a funnel '20 is provided, said funnel leading to a suction device so that the dust arising fromthe op- The upper abradingy eration of the machine will be carried off in,

a well-known manner. e I

The operation of the machine will be readily understood. The operator stands in front ofthe machine and holds the shoe against the scouring tool as indicated inv Fig. 2 and the tool reciproc'atesvertically a, smooth surface thereon. merely holds the heel against the tool and to finish the'heel simply lifts it to the higher abrading member.

In scouring machines now generally the work is done by wheels which travel constantly in one direction, and consequently, form a feather edge or bur on one .side so that the heel must be reversed and applied to a second wheel before it is finished. In my machine, the tool moves in both directions across the heel and no bur used,

is formed, the operator being enabled to finish the heel without leaving his position. 7 It is not necessary to mold the abrading cloth as it may be cut in lengths from the supply roll and placed directly against the, pad. The form plates will have the same curve as that originally given theheel and may be easily and quickly interchanged. 7

Having thus described myinvention, what is claimed as newis:

.. 1. Means for securing the breasts of shoe,

heels comprising supporting arms carrying a form plate of curved cross sectlon and of approxlmately uniform thickness 'throughout its extent,.a yieldable cover over the front face of the form plate, an abrading strip fitting over the cover with itslongi porting arms.

tudinal edges against the back of the form plate clamping plates 'fitted against the abrading strip-atthe back of the 1 formplate and extending longitudinally of the form plate, means for securing one clamping plate and the adjacent side edges of the cover and of. the abrading strip to the rfo'rmplate, and means for securing the other clamping plate and the adjacent side edge ofthe cover and of the abrading strip to the form plate and t0 the ends of thesupporting arms, thefirst mentioned clamping plate and .the parts held thereby being entirelyfree of the sup- 2. 71V eansifOr scouring the breasts of shoe heels comprising a vrelativelyzthin metallic vplate having; its outervface straight inlongiplate and-against the back of-the-tsame a support andxmeans for securing the side edges of the abrading strip to the back of the form plate, and one-0f said side edge securing means also securingathelform plate adjacent one side 5 edge to :the, support the opposite side edge 'of the .forni plate being free.

Intestimonyvthereofl aflix nl y signatn-re.

RUPERT L. GREENLEAF. j L. .S,

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