Improvements in Jacks" or Last Supports for Boots and Shoes.
Year: 1898

page_text: Date of Application, 21st July, 1898-Accepted, 15th Oct., 1898
COMPLETE SPECIFICATION.
Improvements in Jacks" or Last Supports for Boots and Shoes.
I, WILLIAM GORDON, of 92, Earl Street, Northampton, Foreman in Shoe Factory,
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 follow-
ing statement:―
The object of this invention is to provide a jack" or last support for use in
combination with a slugging or nailing machine which will enable an operator
to slug or nail a boot heel while the boot is on the last.
My invention is illustrated by the accompanying drawings in which:-
Fig. 1 is a side view of my improved "jack."
Fig. 2 is a back view of the same with one half in section.
Fig. 3 is a plan of the lower part of the "jack" with the stem moved to one
side.
Upon the ordinary post a of a slugging or nailing machine I provide a split
socket & which may be cramped fast by means of a cramping screw c. This socket b
has a jaw d which receives a tongue e formed on a flat circular plate f. Through
the upper part of the jaw d and tongue e passes a pivot g and through the lower
part of the jaw d, and a slot h formed in the tongue e, a cramping bolt i. By
this means the plate f may be tipped relatively to the nail driver of the machine
and cramped fast at the desired angle thereto.
The plate is provided with a rim j and an annular cover k. Within the
space, between the cover k and the plate f, is fitted a disc m which is free to
slide about indifferently in an approximately horizontal direction but is prevented
from parting company with the plate f by the cover k.
From the centre of the disc m rises a work supporting stem n, through the
centre opening o formed in the cover k for the purpose, and a ball pin p is carried
in a cup q formed in the top of the stem n. A cover r retains the ball s in the
cup g. Upon the pin p the last t and boot u are mounted.
The balls allows the boot heel v to be tipped a little in any direction, relatively
to the driver of the slugging or nailing machine, as the work may require, and the
plate f is set by the operator at such an angle relatively to the same driver, as
to ensure the slugs or nails being driven sufficiently inwards as not to emerge
on the sides of the boot heel. The disc m has sufficient liberty sideways to permit
any portion of the surface of the heel being brought under the machine driver.
Ordinarily the post a is supported by a spring, and depressed by a treadle for
the insertion and removal of the work.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
In a machine for slugging or nailing boot heels.
1. The use of a
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jack" consisting of a work supporting stem carried upon
plate upon which it is free to move in any direction without parting company

page_text: 2. The use of a jack" consisting of a work supporting stem carried upon a
plate upon which it is free to move in any direction without parting company
from it; the plate being capable of adjustment for the purpose of presenting the
boot heel at the desired augle to the nail driver of the machine, as described.
3. The use of a "jack" provided with a ball pin for supporting the last, as
described.
4. The use of a "jack" provided with a disc and stem having freedom to move
in a horizontal, or approximately horizontal, direction, as described.
£6
5. The use of a jack" provided with a tipping plate for supporting the disc
and stem, as described.
6. The use of a jack" having the combination of the tipping plate and the
sliding disc as and for the purpose described.