US254621A - Tagking-machine - Google Patents

Description

' UNrTa STATES PATENT Ormea;

JOSEPH E. CRISP, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE COPE- LAND TACKING AND LASTING COMPANY, OF PATERSON, NEW JERSEY.

TACKlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 254,621, dated March 7, 1882.

` Application illed January 6, 1882. (No model.)

To all whom it may concern:

Be it known that 1, JOSEPH E. CRISP, of Boston, in the county of Suffolk and State of Massachusetts, a citizen of the United States, have invented a certain new and useful Improvement in {Backing-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature, in which- Figure 1 is a side elevation of a machine containing my invention, with a portion of the jack-support broken out to show a feature hereinafter more fully described. Fig. 2 is avertical section, enlarged, of a portion of the jack-adjusting mechanism on the line a; of Fig. 3. Fig. 3 is a plan view of a cam used with said adjusting mechanism. Fig. 4is a front elevation of the j ack and said jack-adjustingdevice.

This inventionis an improvement upon those described in Letters Patent Nos. 246,437 and 248,544, both to Erastus Woodward, and in the pending application of the said Erastus Woodward, filed November 16, 1881, all relating to lasting and fastening machines. In said patents there are described various means for operating what is called the start-andstop-motion7 mechanism; and one portion ',of

my invention relates to an improvement uponr the devices for operating the start-and-stopmotion mechanism ot' said inventions.

The other portion of my invention is an improvement upon the jack -adjustug device most fully described in Patent No. 248,544. Instead of operating the start-and-stop-motion mechanism by an arm situated or located to be operated by the jack or work during the act of placing the work in position to receive the fastening, as is described in LettersPatent No. 246,437, or by the nozzle, as is described in Letters Patent No. 248,544, or by an independent treadle, as is described in said pending application, I use the same treadle that is employed for lifting the jack; but instead of discharging the machine or actuating the startmotion at theinstant the machine is in position to receive the fastening-that is, immediately under and pressed against the nozzle-I use the treadle for lifting the work to the nozzle,

while the work is being turned in presenting new sections to receive the fastenings. It is so organized, however, that the extent of lift yof the jack varies, it being necessary to lift the jack a greater distance at the shank than at the toe or heel; and this portion of my invention is designed to improve this feature, so that the lift of the jack shall at all times be substantially of the same extent. ThisI accomplish by means of cams or cam-surfaces interposed between the jack and the saidadjusting mechanism, as hereinafter specified.

I connect the latch A with the treadle B for lifting the jack by means of the rod b, which is suitably attached to the frame of the machine, and is adapted to have a vertical movement imparted to it by the treadle. The upper end of the rod is not rigidlyfastened to the latch, but has a limited-movement independent thereof sufficient to allow it to be brought in contact with the end of the nozzle.

Of course any desirable means may be used for accomplishing this result, and I show the latch provided with the slot a, open at its bottom, and the rod with a pin or slide, a', which projects into said slot and rides therein, the pin coming in contact with the upper end of the slot when the work is substantially in position to receive the fastening.

The lower end ot the rod b rests upon or is pivoted to the lever B. This lever B and its connections for operating the jack are like those described in said Patent No. 248,544, with this exception, that provision for lostl motion is provided in the jack-support or at some point between the treadle and the jack. I have represented this provision in the jack-support,

and its object is to allow the treadle B to be depressed further after it has fulfilled its function or ofce of lifting the work to the nozzle. This I accomplish by making the jack-support C in two parts, one of which slides in or upon the other, and byinterposin g between the parts a spring of sufficient tension to hold the Lipper part in a fixed position in relation. to the lower part or in a substantially fixed. position until the contact of the Work with the nozzle, when, by the further descent of the treadle, the spring may be compressed, and upon the release of the treadle the spring automatically returns the parts of the support to their original position.

In the drawings, c is one portion of the support. Its lower part, c', is hollow, and it is arranged to slide in the sleeve c2, which makes the other part of the support. The coiled spring c3 is interposed between the two parts and euters the hole in the portion c', as shown. A slot, c, in the sleeve, and a pin, c5, in the part c, which enters the slot, limit the range or eX- tent of the movement ofthe two parts in relation to each other.

In operation the foot is placed upon the treadle. The work is guided by the operator to the guide, and is lifted by the treadle until it comes in contact with the end of the nozzle. The treadle is then still further depressed, the work remaining stationary, and the machine thereby discharged. Upon the release of the treadle the parts resume their normal position.

The base D of the jack is adapted to turn upon the part D of the adjusting device. In Patent No. 248,544 these parts are shown as plane,.there being continuous contact of the two surfaces at all times. Instead of making them plane, however, I have made them of a shape shown substantially in Figs. l and 4- that is, of such shape in relation to each other' vthat as one part rides on the other it lifts or lets fall the jack, according to its position in relation to the other; and these cams/as they may be called, are so shaped in relation to each other that they lift most between the heel and ball ot' the last. In order that this lifting action may take place, it is necessary that the post d, instead of being secured to its holdingblock, as described in said Letters Patent,

,should have a vertical movement in the bevel- The operation of this part of my invention is as follows: On the revolution of the jack the part D rides upon the part D, and is changed in elevation or height in -relation thereto according to the shape which the cams bear to each other. This adjustment is in the nature of a compensating device, which overcomes, as above stated, some of the irregularity of the former adjusting devices in which the extent of the movement of thejack was varied, land. which ot' course called for varying movements of the treadle, it being desirable that the treadle should have substantially the same extent of movement at every operation, and that the range of movement of thejack be as limited as possible.

In lieu of the start-motion mechanism indicated, I may use of course any of the well-known start-motion mechanisms of ordinary machines, the feature of this portion of my invention being the manner of connecting it with the treadle, so that by the operation or movement of the treadle thejack is lifted aud put in position and the machine started.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination ofa jack for holding and presenting the last to an automatic fasteningdriving device, and. means, substantially as specified, for setting said fastening-driving device in operation, arranged or located to be moved after the placing in position of the last to receive the fastening by a further movement of the treadle used in placing the work in position to receive the fastening, all substantially as and for the purposes described.

2. The combination of the start-and-stopmotion mechanism of a fasteningdriving machine, a jack for holding and presenting the last to said fastening-driving device, a treadle, and intermediate connecting mechanism, substantially as specified, whereby upon the movement of the treadle the work is presented to the nozzle of the fastening-driving device, and upon its further movement the start-motion mechanism of the machine is actuated, all substantially as and for the purposes described.

3. The combination of the treadle B, the jack, and intermediate supporting mechanism, substantially as speciiied, whereby the jack may be lifted to a given position by the treadle and then become stationary, While the movement of the treadle may be continued to actuate the driving mechanism, all substantially as and for the purposes described.

4. The combination of the rotaryjack, the jack-support, and conversel y-arran ged cams or cam-surfaces upon or between thejack and its support, all substantially as and for the purposes described.

J. E. CRISP.

Witnesses:

F. F. RAYMOND, 2d,

W. O. Foce.

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