Improvements in Heel-building Machines.
Year: 1893

page_text: Date of Application, 4th Mar., 1893
Complete Specification Left, 4th Dec., 1893-Accepted, 27th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in Heel-building Machines.
I, JAMES STONE, of 8, Chapel Street, Somer's Town, in the County of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved machine for building the heels of boots and
shoes and in which the several lifts are placed in their proper relative positions
without the necessity for introducing them separately into a fixed or rigid form or
mould as has heretofore been usual.
According to my invention I mount upon the table upon which the lifts are
placed a number of pushers or shakers, say three, and a block which may be adjust-
able, the said pushers or shakers and block being so shaped that when brought
together they will form what may be termed a mould of the required shape.
My pushers or shakers are advantageously attached to slides so that they may be
changed to suit different sizes and shapes of heels. The slides carrying the pushers
or shakers are operated by means of a treadle in such a manner that the pushers
or shakers can be brought against the lifts so as to shake them and place them
centrally against the fixed block over the usual nailing plunger, when they are
clamped in position in the usual manner. The treadle being released the pushers
or shakers are moved outwards by means of springs, or by other suitable means,
ready for the next operation, at the same time leaving the heel free so that it can
be readily removed by the fingers.
Dated the 4th day of March 1893.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Heel-building Machines.
I, JAMES STONE, of 8, Chapel Street, Somer's Town, in the County of London,
Engineer, 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 relates to an improved machine for building the heels of boots and
shoes and in which the several lifts are placed in their proper relative positions
without the necessity for introducing them separately into a fixed or rigid form or
mould as has heretofore been usual.
be
According to my invention I mount upon the table upon which the lifts are
placed a number of pushers or shakers, say three, and a block which may be adjust-
able, the said pushers or shakers and block being so shaped that when brought
together they will form what may be termed a mould having its walls in sections.
My pushers or shakers are advantageously attached to slides so that they may
changed to suit different sizes and shapes of heels. The slides carrying the pushers
or shakers are operated in such a manner that the pushers or shakers can be brought
against the lifts so as to shake them and place them centrally against the fixed or
adjustable block over the usual nailing plunger, when they are clamped in position
in the usual manner,

page_text: To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is a side elevation of my improved heel-building machine; and,
Figure 2 is a sectional plan of the same, the section being taken on the line 2-2,
Figure 1:
Figure 3 is a front elevation partly in section on the line 3-3, Figure 2:
Figures 4 and 5 are respectively a front elevation and a side elevation partly in
section illustrating a modification of my invention.
Similar letters of reference indicate corresponding parts in the several figures.
a is the framing or pedestal of the machine, b is the table, c, c, c¹ are the shakers
and c² is the block, which shakers and block are the sections which together form
the mould for receiving the lifts. The side shakers c, c are firmly attached to
slides d, d and the shaker c¹ to a slide d' respectively, the said slides working in
guides e, e, e fixed to the table b or otherwise suitably formed. The block c² is also
adapted to slide upon the table, a screw f working in a screw-threaded boss 9 on the
said block serving to effect the adjustment of the latter.
Any suitable means may be provided for moving the slides d, d, d¹ in order to
effect the movement of the shakers c, c, c². As shewn in the drawings each of the
said slides d, d, d¹ has a lug h projecting through a slot in the table b, the lugs h, h
of the slides d, d being connected by links i, i with bell-crank levers j, j and the lug h
of the slide d by a link with a bell-crank lever j', the said bell-crank lever j¹
being pivotted upon an axis k at right angles to the axis of the levers j, j. The
levers, are connected by rods 1, 1, with a treadle lever m pivotted to the
pedestal at m' so that when the said lever is depressed the slides d, d will be moved
laterally away from one another and the slide d' rearwardly. A spring n connected
at one end to the pedestal and at the other end to the treadle lever m serves to normally
hold the latter in a raised position with the shakers c, c, c¹ in their closed positions.
o is a screw operated by a hand-wheel o' and working in a swan-neck p fixed
above the table, the said screw having a pressing block o² serving to clamp the lifts
in the mould during the nailing operation.
""
The nailing mechanism is of ordinary construction, that is to say, in the bottom
of the mould is a plate or block q having in it a series of holes the positions of
which correspond with those which the nails are to occupy when driven, and below
the said plate is a plunger having a series of pins upon it which enter the said
holes and work therein in such a manner that when the plunger is raised the nails
will be driven out of the holes into the heel in the mould. The said plunger is
operated by means of a treadle-levers through the medium of a rod t, a spring u
normally holding the treadle in its raised position.
The operation of the apparatus hereinbefore described is as follows:-
-Nails are
introduced into the block 9 above the pins of the plunger r and the lifts to form the
heel are placed in the mould; the treadle m is then slightly depressed and raised,
two or three times, in order that the shakers c, c, c shall move backwards and
forwards in order to shake the lifts to bring them in their proper positions relatively
with each other. The screw o is then moved down to compress the lifts and the
treadle s is operated to drive the nails after which the screw o is released and the
heel removed.
When it is desired to attach the heel at the same time that the lifts are secured
to each other, it is necessary that the device for applying the pressure during the
nailing operation should fit the portion of the inner sole immediately above the
heel.
As some difficulty might be experienced if a screw was employed for ensuring that
the pressure-block should always come down in the proper position I advantageously
provide the pivotted pressure-block v shewn in Figures 4 and 5, which block can be
moved outwards to the position indicated by the dotted lines in Figure 5 when the
shoe is being placed upon it and then moved inwards to the position shewn in full
lines with the heel portion of the shoe above the lifts. In this case the upper part
of the block c² (which is indicated by dotted lines in Figure 5) is removed from the

page_text: lower part of the same to which it is attached by screws so that it shall not interfere
with the movement of the pressure-block and the shoe thereon the said lower part
and the screw being arranged below the top of the table. In these figures also
the plunger to which the pressure-block is pivotted slides in guides and is depressed
by means of an eccentric w operated by a hand-lever w¹ against a screw a screwed
into the upper end of the plunger, the said screw serving for adjusting the said
pressure-block relatively with the mould.
It is to be understood that this modified form of machine can also be used for
building heels only, in which case the pressure-block remaining in a vertical position
it is unnecessary to remove the block c².
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a heel-building machine a mould the wall of which is made in sections
adapted to be moved relatively to each other for the purpose of shaking the lifts
into position, substantially as described.
2. In a heel-building machine having movable side sections as referred to in the
preceding claiming clause, the provision of means substantially as described for
moving the said sections, as set forth.
3. In a heel-building machine the combination with the mould having movable
side sections of a pivotted pressure-block arranged substantially as described.
4. The improvements in heel-building machines hereinbefore described and
illustrated in the accompanying drawings.
This 1th dow of Doromban 1002
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.