US130686A - Improvement in heel-trimming machines - Google Patents

Description

c. J. ADDY.

Improvement in Heel-Trimming Machines No. 130,686. Patented-Aug. 2'0,1872..

L i? I W M WITNES$ES INVENTOR [UNITED STATES i PATENT O IoE.

CHARLES J. ADDY, OF BOSTON, MASSACHUSETTS, Assienon 0E ONE-HALF E'Is EIGHT ro JOHN E. FOLSOM, OF SAME PL oE;

IMPROVEMENT IN HEEL-TRIMMING MACHINES.

Specification forming part of Letters Patent No. 180,686, dated August 20, 1872.

To all whom it may concern:

I, CHARLES J. ADDY, of Boston, in the county of Suffolk and State of Massachusetts, have invented a certain new and useful Improved Machine for Trimming Heels, of which the following is a specification:

The nature of the Invent-ion.

The nature of my invention consists, first, in hanging the cutter of the trimming-machine upon a swinging bar or arm, said arm being pivoted in or nearly in a line with the drivingbelt, so that the swinging of the arm does not interfere with the driving of the cutter-wheel second, in combination with the above swinging arm, a guide or pattern and an adjustable gage screw; third, in combining with. the swinging arm a link and treadle for operating the same; fourth, in the detail of construction of the holding-jack, which may be best under stood by reference to the drawing and specification.

Description of the Drawing.

Figure 1 is an elevation of the entire machine. Fig. 2 is a plan, showing the jack and its adjuncts. Fig. 3 is an enlarged section, showing a device for limiting the motion of the jack.

General Description.

Ais aframe or standard, to which the several parts ofthe machine are attached. B is a swinging arm, pivoted to the frame of the machine at e, or, if desirable, at either one of the holes 0 e, 850., it being desirable to have the swinging arm pivoted nearly in line with the drivingbelt. D is a revolving cutter, made fast to the shaft D, which runs in the swinging arm B. C- is a link, pivoted to the swinging arm B at C and to the foot-lever O at O, the foot-lever 0 being pivoted to the frame of the machine at c. Wis a counterpoise attached to the swinging arm B, and serves to throw up the cutter D from contact with the heel of the shoe S. h is a guide-screw screwing into the frame B, its head resting upon the guide-plate H The guide plate or pattern H is connected with the jack H, and revolves with it and the shoe. D is the main shaft of the machine, to which the driving power may be communicated. H, Figs. 1 and 2, forms apart of the jack, one end swinging upon a pivot at H and the other end swinging with the hollow journal K L is a hand-wheel attached to the journal K, and serves to revolve the jack H and shoe S so as to present all parts of the heel to the action of the cutter. L is an arm attached to the hand-wheel L and is provided with check screws 1 Z. (See Figs. 2 and 3.) These checkscrews strike upon the shoulders L and L and thus limit the motion of the jack and shoe. h, Fig.1, is a wedge-shaped key, which passes through the hollow journal K and through the end of the jack H, so as to hold them together and at the same time to act as an adjusting device for moving the. jack and shoe into prop-. er relative position with the cutter D. A coiled spring in a part of the jack H reacts against the wedge hl, so the jack is always held steadily in position. h is a screw having a disk which engages in a notch in the wedge h so that any motion of the screw gives a corresponding motion to the wedge or key h. M is a screw passing through the hollow journal K its end resting upon the inner sole of the shoe, opposite the center of the heel. M is a hand-wheel attached to this screw, and serves to operate it. K and K Fig. 2, are adjustable checks attached to the jack, and their ends pressing against the counter of the shoe, as shown in Figs. 1 and 2. These checks assist in centering the shoe.

To operate my machine I proceed as follows:

The proper gage plate or pattern H is fastened to the jack; then the adjusting gagescrew h is set so as to govern the motion of the swinging arm B, after which the shoe is placed in the jack and fastened by means of the screw M. When everything is ready the cutter is brought down into position by means of the treadle O, and the shoe is revolved so that the cutter may act upon all parts of the heel to be trimmed. v

I claim as my invention--,

1. The combination of the swinging bar B and revolving cutter D with the guiding device h H or its equivalent, substantially as described, and for the purpose set forth.

2. The combination of the swinging arm B and revolving cutter D with the treadle O and link 0 substantially as described, and for the purpose set forth.

3. The combination of the swinging arm B and the revolving cutter D with the adj ustable fulcrum e e e, &c., substantially as described, and for the purpose set forth.

4. The combination of the adjustable cheeks K K with the jack H, substantially as de scribed, and for the purpose set forth.

5. The combination of the hollowj ournal K the key-wedge M, the adjustable screw b and the jack H, substantially as described, and for the purpose set forth.

6. The combination of the shoulders I l with the jack H, operating substantially as described, and for the purpose set forth.

CHARLES J. ADDY,

Witnesses:

' H. FLOYD FAULKNER,

FRANK G. PARKER.

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