US392121A - hodskinson - Google Patents

Description

(No Model.) 2 Sheets-Sheet l.

J. H. HODSKNSON.

PBGGING JACK.

No. 392,121. Patentedot, 30 1888' VLEFI. Q

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(No Model.)

J. H. vHo1JsK11\Iso1\I.

v PBGGING JACK.

NO. 3921.21. Patented 0013. 30. 1888.

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ilNrTnD STATES PATENT Fries.

J. HARRISON HODSKINSON, OF SALEM, MASSACHUSETTS, ASSIGNOR OF ONEHALF TO JABEZ HODSKINSON, OF SAME PLACE.

PEGGING-JACK.

SPECIFICATION forming part of Letters Patent No. 392,121, dated October 30, 1888.

Application iilcd March 2. 1.888. Serial No. 265,977. (No model.)

the last-holding portion of the jack vertically adjustable, in order that the operator may depress the last before moving it away from the sole-pressing die and raise the last to the proper height for said die to act on it after the boot or shoe is jacked.

The inventionY has for its object to provide improved means for adjusting the jack vertically and for holding it positively at any position to which it may be adjusted.

The invention also has for its object to provide certain improvements in the last-support ing devices of the jack and in the means for adjusting the same to lasts of different length.

To these ends my invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of my improved jack. Fig. 2 represents a longitudinal section of the same. Fig. 3 represents an end elevation of the upper or adjustable portion. Fig. 4 represents a section on line :r x, Fig. 1. Fig. 5 represents a sectional view of the toe-rest and its holder, with means for adjusting the latter. Fig. 6 represents a modification.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents a supporting standard which constitutes the base of the jack, and is in practice suitably mounted on the sole-leveling machine, or other machine with which the jack is used.

b represents the adjustable section of the jack, the same comprising a socket, 2, which receives and is adaptedtoslide upon the standard a, and the horizontal arm 3, on which the spindle-holder 4 andtoerest holder 5 areadapted to slide.

c represents a wedge, which is adapted to lor the other.

slide horizontally in a slot, d, in the standard a, and has arack, e, formed on one of its ends, which rack engagesa worm or screw journaled in bearings in the standard a, and inabracket, g, attached thereto. Said worm is provided with a crank or handle, h, whereby it may be rotated to move the wedge c in one direction The socket b rests on the inclined surface of the wedge, and is adjusted verticallyby movements of the wedge, as will be readily seen. Provision is thus made for readily varying the height of the last supported by the jack and for holding the same at any point to which it may be adjusted, the engagement of the worm with the rack preventing any movement of the wedge, excepting such as is caused by the rotation of the worm.

To prevent the last from being raised too high by the rotation of the worm, I provide a stop-screw, j, which works in a lug, lc, on the wedge, and may be adjusted to bear on the standard a, as shown in Figs. 1 and 2, and thus preventthe wedge from moving in the direction required to raise the upper section of thejack beyond a given point.

The heel-engaging spindle m is pivoted at n to the holder 4, and is pressed forward by a spring, o, within said holder, which presses back the portion of the spindle below the pivot n, thus causing the spindle to automatically bind against the surface of the spindlen socket in the last.

The toe-rest p is formed with curved lugs or sockets q g on its sides, which are adapted to oscillate slightly upon curved bosses r r on the holder 5, so that the toe-rest can rock length wise of the last and conform to variations in the curvatures of the fore parts of different lasts. Screws s, at the center of oscillation of the toe-rest p, pass through the lugs r r and enter cavities in the sides of the toe-rest, as a means for preventing displacement of the toe rest.

The spindleholder 4 and toe-rest holder 5 are each provided with dovetail iianges tt, which engage the dovetail edges of the arm 3, and are adapted to slide thereon to vary the distance between the toe-rest and spindle, and thus adapt the j ack for shorter and longer lasts.

The tce-rest holder has a centrul nut, n, which projects downwardly through a slot, w, in the arm 3, nud is engaged by a screw, o, which is swiveled in an enr, u', on the arm 3. The rotation of seid screw moves the nut u and holder 5 lengthwise of the arm 3. The spindle-holder has a lug, b, at one end, in which is swiveled a screw, c,nhich engages a threaded orifice in the socket 2, and by its rotation moves the i@ holder 4t on the arm 3 toward and from the toerest holder.

It will be seen that the described improvements enable the joel; to be conveniently adjusted not only as to the height of its lastsup t5 porting spindle und toerest, but also as to the 20 formed in the socket and fitting against the sides of the wedge, so that the socket is' prevented frein turning on the standnrd c by the wedge.

The toetrest p may be made vertically ndz5 justnble by nienns of a wedge, A, operated by a screw or worin, ns shown in 5, the wedge being adapted to slide in n slot in the holder 5, and provided with a worm, B, meshing with a rack, C, on the wedge, said worm being 3o jonrnaled in bearings on the support 5.

I prefer to provide the spindle-holder in with :t screwthreuded sleeve, D, which furnishes a vertically-adjustable support for the last, seid sleeve being raised and lowered by turning it 35 on the holder 4.

In Fig. 6 I have shown as equivalents for the means above described for adjusting the section b of the jock a right-and-lett screw, H, jonrnaled in bearings in the lower section, a,

4o and two levers, I I, pivoted at J to the upper section, b, and having nuts K K swiveled to its lower ends and engaged with the right-andlcft screw. A rotation of said screw will cause the levers I Ito swing toward or from each 4.5 other, according to the direction of rotation,

and thus raise or lower the section b. It will be seen that the right-nnd-left screw II is n full equivalent for the worlnf, while the levers I I and their nuls are equivalents ofthe wedge and reel; ns n ineens for adjusting and positively holding the section b of the jack.

l claiml. In a jack, the combination of the supporting section or standard, the wedge, means for moving and holding the wedge, the uppcl` section supported by said wedge and provided with suitable last-supporting devices, and the adjustable stop j,whereby the upward :notion oi" the upper section is limited, as set forth.

In a jack, the combination of the supporting-section, a wedge, c, fitted to a slidein a slot in seid section and provided with arack, c, the worin or screw f, supported by the standard and engaged with said rack, and the upper section supported by said wedge and provided with lnstsupporting devices, as set forth.

In o jack, the combination of the section b, ineens, as described, for vertical] y adj nsti ng the sume, and the toe-rest and heclsspindle supported by the section Z), as set forth.

d. The combination ofthe vertically-Inoveblesection b, ineens, substantially as described, for adjusting the suine vertically and holding it at any position to which it maybe adjusted. nud the heel-spindle and toe-rest supported by said section b, and the devices for adjusting said spindle and rest toward and f rom each other, ns set forth.

The combination, with the verticallymovableseetion b, and menus, as described, lo' `zuljusting `und `holding the saine,iof the holders et 5, mounted to slide on the section I), the spring-pressed spindle m, pivoted to the holder 4, the toorest supported by the holder 5, and the operating-screws,whereby said holders may be adjusted and held, as set forth.

(i. In a jack, the combination, with a toerest, of the spindle-holder 4 and a verticallyadj ustablc collar, D, on said holder, as set forth.

In testimony whcreofI have signed my name to this specification, in thepresence of two sub scribing witnesses, this 27th day ot'Februnry, 1888.

J. HARRlSON HODSKINSON.

Vitncsses:

EDwrN W. SHANNON, HENRY M. Heini.

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