Improvements in Boot and Shoe Jacks.
Year: 1897

page_text: Date of Application, 23rd Mar., 1897-Accepted, 12th June, 1897
Improvements in Boot and Shoe Jacks.
I, WILLIAM BAYHOUSE, of Boise City, in the County of Ada, and State of
Idaho, in the United States of America, Gentleman, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—
My invention has relation to boot and shoe jacks for shoemakers, and the object
is to provide a device of this class principally intended for repairers' use, though
new work may be finished upon it, that will be simple and cheap in construction
and very convenient and reliable in operation. To this end the novelty consists in
the construction, combination and arrangement of the several parts of the same
as will be hereinafter more fully described and particularly pointed out in the
claims.
In the accompanying drawings the same letters of reference indicate like parts
of the invention.
The figure is a perspective view of my improved jack as it appears set up ready
for use on nailed or pegged work.
A is the stand or base, and it consists of firm, solid casting, having an integral
socket B, in which the shank C of the jack E rests, and when in position, the jack
may be turned in any position on its axis in the socket, for convenient access to the
heel or toe of the shoe, as desired.
D is an upright standard formed integral with the base A, and the upper end of
said standard is provided with a horizontal socket d, into which the shank C of the
jack may be inserted, and the combined movement of the jack in the socket d and
the standard in the base permits the workman to have convenient access to any
part of the shoe.
The jack E consists of an upright casting P, terminating in a heel F, having a
longitudinal rectangular recess, into which the integral tongue of the last H
adjustably slides; and on the lower face of the tongue h is a recess i, which
receives the square upper end e of the vertical supporting lever I, the lower end
of which is fulcrumed on the pivot J, between the arms k k of the brace K, and the
extreme lower end c of the lever I is semicircular, so that one point of the semi-
circular end e rests upon the shoulder 6 of the socket B, and supports the blows
upon the last H, no matter in what position the lever I may be supporting the
last, as the intention is, when the jack is in use, to take all strain from the rivet or
pivot J and transfer it to the shoulder b, formed integral with the base.
L is a hand lever pivoted to the front face of the upright P, its inclined cam
face M pressing against the upright lever I, above its pivot J, so that as the
handle of the lever is operated, the upper end e of the supporting lever I will be
forced outwardly, carrying with it the last. This operation varies the distance
between the heel and toe of said last, to enable the last to be fitted snugly in a
shoe.
A flat V-shaped spring, located between the rack T and the lever I above its
fulcrum, serves to press said lever in towards the upright P, and keep said lever I
against the cam face M of the hand lever L at all times.
A side lever N is fulcrumed to the brace K at one side, and it extends forward,
terminating in a handle n. A portion of the side of this lever is cut away to form
a pawl n', which engages with the teeth t of the rack T, and a looped strap S is
י

page_text: secured to said lever in the recess n², its upper looped end extending around the
instep of the shoe to hold it in place on the last.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. A repairing jack of the class described, consisting of the base A, having a
rigid socket B and pivoted standard D, having a horizontal socket d, the jack E
having the shank C, and the wheel F having rectangular recess and the upright
lever I, in combination with the last H, integral tongue 1, recess i, and the lever L
provided with a cam face M and an operating handle l, substantially as and for the
purpose set forth.
2. A repairing jack, consisting of the upright P, integral heel F, having a
rectangular recess, the upright lever I, and the cam faced lever L M, in combination
with the removable last H, having an integral tongue and recess i, substantially
as and for the purpose set forth.
3. A repairing jack, consisting of the base A, having rigid vertical socket B and
pivoted standard D, having horizontal socket d, in combination with the upright P,
shank C, heel F, having a recess, the last H, having tongue and recess i, and the
upright lever 1, fulcrumed on the pivot J, and having a semi-circular bearing
end c, and the square upper end e and the cam faced hand lever L M, substantially
as and for the purpose set forth.
Dated this 23rd day of March 1897.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.