US1227575A - Work-support. - Google Patents

Description

W. H. BORDEN.

WORK SUPPORT.

APPLICATION man SEPT. 24. 1914.

Patend May 29, 1917.

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WILLIAM'. H. BORDEN, OF WINCI-IESTER, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WORK-SUPPORT.

Specification of Letters Patent.

Patented May 29, 191W..

Application filed September 24., 1914. Serial No. 863,362.

To all whom it may concern:

Be it known that I, WILLIAM H. BORDEN, a citizen of the United States, residingat Winchester, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Work-Supports, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

The present invention relates to work supports and more particularly to work supports of the type used in connection with machines for successively inserting fastenings in boots and shoes while upon the last.

Substantially all work supports which are in use at the present time for supporting a shoe upon the last during the fastening inserting operation comprise a pivoted spindle arranged to be moved in an arc of long radius and carrying at its upper end a last pin which enters a last pin socket in the heel end of the last. Although jacks of the foregoing type have proved to be substantially satisfactory for heel seat and heel work it has been found that the range of adjustment of the pivoted spindle construction of jack is not sufficient when operating upon heels of extreme dimensions or unusual styles.

An object of the present invention is to provide an improved type of jack of wide adaptability.

A further object of the invention is to provide a jack which will have a large range of movement in its work presenting operations but which will at the same time maintain the surface of the shoe presented in substantially a horizontal plane. To this end the jack is mounted for movement in a horizontal plane in the direction of the feed of the work, is normally in a position to readily receive the shoe or to permit the removal of the shoe therefrom and is also arranged to be moved in a direction transverse to the horizontal movement to position the shoe with respect to the fastening inserting mechanism. Advantageously the points of support of the jack spindle are approximately in the same vertical plane as that in which the operations of the machine are performed, thus preventing the shoe from being crowded against the work gage, whereby the edge of the sole or heel of the shoe may be marred or, when the jack is used with a machine for inserting fastenings, the fastenings may not be located the desired distance froln the edge of the work.

Other objects and important features of the invention will appear from the following description and claims when considered in connection with the accompanying drawings in which a preferred embodiment of the invention is illustrated.

In the drawings,

Figure 1 is a side elevation of the work support of the present invention; and

Fig. 2 is a perspective view of the work support showing a shoe in position thereon and its relation to the machine.

In the embodiment of the invention herein selected for illustration 2 is a vertical :bearing on the column 3 of any well-known type of fastening inserting machine, for instance the machine shown in the patent to Goddu No. 1,030,775, granted June 25, 1912. A jack post 5, the lower end of which is connected to a treadle (not shown), is adapted to slide up and down in the bearing 2 and to the upper end of this post a depending jack frame is adjustably clamped by the bolts 6. This frame consists of two depending arms 8 and 9, the lower ends of which are formed to provide oppositely projecting horizontal arms 12 and 13 extending transversely of the machine or in the direction of the feed of the work and in approximately the same plane as the axis of the supporting jack post'. Two tracks 15 and 16, which are preferably round in cross section, are supported at their outer ends in a horizontal position by the upturned ends of the arms 8 and 9 and at the opposite ends by bosses formed on the arms of the jack frame and suspended from these tracks is a cradle 18 carrying a jack spindle 20. The ends of this cradle 18 are o'set to overlie the tracks 15 and 16 and are slotted to receive two grooved anti-friction rolls 21 and 22 which are mounted on pins in the ends of the cradle, one above the other so as' to engage opposite sides of the tracks thereby enabling the cradle to be moved easily over the tracks to position the work with respect to the machine, the lower rolls 22 preventing the cradle from being displaced from the tracks.

Since the cradle 18 and spindle 20 are suspended at one side of the tracks 15 and 1G the center of gravity of the cradle and spindle is so located that the last supporting spindle is normally in position for receiving the work or permitting the work to be removed therefrom as shown in Fig. 1 and the cradle and spindle may be tipped about the tracks 15 and 16 as a pivot to present the work to the operating mechanism. lntermediate between the ends of the cradle 18 is an upwardly projecting bearing 23 which receives the lower portion of thejack spindle 20, a key 25 on the spindle and a key-way 26 in the bearing being provided to prevent the rotation of the jack spindle. ln order to accommodate thickness of `work outside the range provided by the treadle mechanism the spindle 2O may be adjusted vertically on the cradle 18 by means of a hand wheel 29 which is threaded on to the threaded lower portion of the spindle 2O and confined against movement longitudinally of the spindle in a slot in the base of the cradle, the pitch of the threads on the spindle being such that a fine and positive adjustment is provided therefor.

A last pin holder 32 carrying1 a freely rotatable last pin 33 is pivoted at 35 in a slot in the upper end of the ack spindle and may be angularly adjusted relatively to the spindle accordingto the requirements of the work being operated upon by an adjusting screw 36 in any well-known manner. The upper end of the spindle 20 is offset so that the last pin 33 upon which the shoe is mounted presents the shoe in a substantially horizontal position t-o the fastening inserting mechanism and the plane in which the spindle 20 is supported on the jack is advantageously in approximate alinement with that of the driver 3S of the machine. rlhus the force required to insert the fastenings is received by the work in substantially a single plane which prevents the spindle with the shoe thereon from being forced inwardly against the work gage 39 of the machine with such force as to injure or scar the edge of the work and also prevent the fastenings from being unevenly spaced about the work.

ln practice the last carrying the shoe is applied to the last pin 33 and the last supporting spindle moved about the tracks as a pivot into position to present the shoe in a horizontal position to receive the fastenings. As the insertion of the fastenings progresses the jack may be readily moved along the tracks to present other portions of the shoe to the operating mechanism, the work receiving surface of the shoe being maintained in a substantially horizontal position without any manipulation of the shoe on the part of the operator to counteract the change of inclination of the spindle as the position of the shoe is changed.

llaving described my invention with particular reference to a preferred embodiment thereof, what I claim as new and desire to secure by Letters Patent is 1. ln a jack, a frame comprising two oppositely extending arms, a track supported in horizontal position on each of said arms, a cradle, the opposite ends of which engage the respective tracks, and a last supporting spindle adjustably mounted on the cradle intermediate between its ends, said cradle and said last supporting` spindle being movable over said tracks and tiltable on said tracks transversely thereof.

2. In a jack, a frame comprising two oppositely extending horizontal arms, a track supported in horizontal position on each ot' said arms, a cradle suspended at each end from said tracks, rollers carried by said cradle and bearing upon said track in such manner that said cradle may move freely over said track and may tilt about said track, an upwardly extending jack spindle mounted on said cradle and means for effecting a vertical adjustment of said spindle.

3. In a jack, a frame comprising two horizontal arms extending in opposite directions along the line of the feed of the work, a track supported in horizontal position on each of the respective arms, a cradle, suspended at each end from said tracks, said cradle being movable over the tracks and tiltable thereon and an adjustable last supporting spindle mounted on said cradle.

4c. In a jack, a frame, tracks supported by, said frame, a cradle supported by and movable over said tracks, said cradle being tiltable about said tracks, and a last supporting spindle adjustably mounted on said cradle. v

5. In a jack, a fra-me, tracks horizontally supported by said frame, a cradle suspended from said tracks, said cradle being movable over the tracks and tiltable about the tracks and a last supporting spindle mounted on said cradle.

6. A shoe supporting jack comprising, in combination, a last supporting spindle, a last pin and holder adjust-ably mounted upon said spindle and a supporting bed upon which said spindle is mounted for free horizontal movement to and fro through a single vertical plane and for free tilting movement about an axis coincident with the said line, said spindle and said bed being relatively constructed and arranged to locate the spindle and the bed in approximate vertical alinement whenever the last pin and holder are in work presenting position.

7. In a jack, the combination with a supporting bed, of a last supporting spindle arranged for horizontal movement to and fro through a single vertical plane extending in the direction of the feed of the work and for free tipping movement transverse to its horizontal movement, said bedbeing located in approximate vertical alinement with lon- 1,227,575 ggg gitudinal thrusts against said spindle when said spindle is in Work presenting position.

8. A jack for a shoe machine comprising, in combination, a supporting bed, a cradle suspended for horizontal movement over said bed, and a last supporting spindle adjustably mounted on said cradle at one side of said bed, the center of gravity of said cradle and said spindle being so located that position for receiving the Work or permitting the Work to be removed therefrom.

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

WILLiM l-l. BURDEN.

Witnesses ELIZABETH C. COUPE,

10 the last supporting spindle is normally in WILLIAM B. KING.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

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