Improvements in Heel Stiffener Moulding Machines.
Year: 1895

page_text: Date of Application, 26th Apr., 1890
Complete Specification Left, 27th Jan., 1896-Accepted, 29th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Heel Stiffener Moulding Machines.
We, ALFRED POCHIN, trading as The Standard Engineering Co. of 43 Welford
Road, Liecester, Makers of Boot and Shoe Machinery, FRANK HOWARD POCHIN,
Draughtsman, and HENRY ADDISON, Manager, of the same address, do hereby
declare the nature of this invention to be as follows :-
This invention has reference to machines for moulding stiffeners for the heels of
boots and shoes, and is designed with the object of producing a machine for the
purpose named, which shall be simpler in construction, less expensive, and capable
of being operated by less skilled labour, than those at present in use.
According to this invention the mould in which the to-be-made stiffener is
shaped, is located on a suitable bed plate which may be supported either by suitable
standards or framing, or upon a bench.
To press the leather blank into the mould and subsequently form it into a heel
stiffener we employ an expansible block or plunger, carried, by preference, on the
end of a screw in a crosshead, the said screw and block thereon being raised and
lowered by means of a hand wheel.
When the said block is lowered by the hand wheel as described and forces the
blank into the mould, the said block is expanded so as to fit tightly within the
mould and impart the requisite pressure to all parts of the blank.
To form the inwardly extending flange on the bottom of the stiffener, plates or
wipers, preferably two in number, are caused to pass over the side or face of the
mould and turn inwardly the projecting portion, or marginal edge of the blank,
while under the action of the expanding block or plunger.
These wiper plates may be provided with cam slots, through which a fixed pin
or pins passes, to cause the said plates when actuated by a lever or other means to
move across the side of the mould as described.
The cam plates may, if desired, move in suitable guideways, or be otherwise
provided with means to overcome the resistance offered by the marginal edge of
the blank when passing over it to form the inwardly projecting flange of the heel
stiffener.
Dated this 28th dow of Anvil 1905
COMPLETE SPECIFICATION.
Improvements in Heel Stiffener Moulding Machines..
We, ALFRED POCHIN, trading as The Standard Engineering Co., of 43 Welford
Road, Liecester, Makers of Boot and Shoe Machinery, FRANK HOWARD POCHIN,
Draughtsman, and HENRY ADDISON, Manager, of the same address, do hereby
declare the nature of this invention and in what manner the same is,
performed to be particularly described and ascertained in and by the following
statement:-
to be
This invention has reference to machines for moulding stiffeners for the heels of

page_text: boots and shoes, and 18 designed with the object or producing a machine for the
purpose named, which shall be simpler in construction, less expensive and capable
of being operated by less skilled labour, than those at present in use.
Referring to the drawings accompanying this Specification.
Figure 1 is a front elevation and Figure 2 a horizontal section on the line X X
of Figure 1.
Figure 3 is a detail view hereinafter fully described.
The same parts are indicated by similar letters of reference throughout the
figures.
A represents the bed plate of the machine having thereon an upwardly extending
arm A terminating in a boss or bearing A 2 internally threaded to receive a
screwed spindle A 3 provided at its upper end with a hand wheel A 4 by which it
is traversed up and down.
At the bottom of the screw A 3 are two plates B B¹ fastened together face to
face by bolts B2, the boss of the upper plate being secured to the end of the
spindle A 3 and the boss of the lower plate having secured therein the shank of
the block C which latter is employed to press the stiffener into the mould as
hereinafter described.
The plates B B₁ have each at their rear a vertical extension plate B3 B4
respectively the edges of which are located in guideways formed between the
upward continuation of the plate A 8 Fig. 2 and two narrow plates A 9 A 10
respectively fastened thereon by bolts A 11 as shown in Figure 1.
D is a box fastened to the bed plate A by bolts D₁ passing through its side
extension plates D 2.
E is the mould maintained in position within the said box by bolts E' which
admit of the said mould being removed and another substituted for it when desired
for making a different size of stiffener.
The leather blank to be formed into a stiffener is placed, while in a damp and
pliable condition, within the mould and the block C is lowered on to it by means of
the band wheel A 4 so as to fix it tightly within and pressing against the sides of the
mould and leaving a marginal edge thereof projecting outwardly from the mould.
To form the said marginal edge into the usual inwardly extending flange on the
bottom of the stiffener a plate or wiper F is passed over it by means of a lever G
pivotally connected thereto at G' and fulcrummed at G2 to the bed plate A.
The wiper F has a curved or shaping edge F' to turn the projecting margin of
the stiffener blank inwardly to form the flange thereof and is movably located
within guide-ways formed between two narrow plates D 3 and the box D attached
together by bolts D 4.
A gas jet may be applied underneath the mould to heat it while the stiffener is
under pressure and partly dry the latter into shape, or the block C may be raised
and the stiffener removed from the mould and allowed to dry into its permanent
shape in the usual way.
Referring to the detail view Figure 3, the block there shown is combined with
means for expanding it within the mould so as to press the stiffener blank uniformly
against the sides of the latter prior to the wiper plate being passed over it to form
the flange as before described.
The block as shown is divided centrally into two parts C1 C2 connected to the
boss of the plate B¹ by spring plates C3 C4 respectively which keep them in
contact and move them up and down therewith.
On the bottom of the spindle A 3 which passes through the two plates B B¹
there is formed a cone or wedge shaped separator H adapted to enter a similar
opening in the upper end of the block C C 2 and press the latter apart and thus
expand it within the mould as before described.
A collar A 6 is secured on the spindle A 3 and between this collar and the boss
of the plate B a spring A 7 encircling the spindle A 3 is located.
Normally ie. when the block CC2 is raised out of the mould E or in the
position indicated in Figure 1 the boss of the plate B¹ is maintained resting on

page_text: the top of the expanding device H, by the spring A 7 but when the block C' C 2
touches the bottom of the mould the spindle A 3 and expanding device H continue
to descend a short distance independently of the plates B B' and block C C' as
indicated in Figure 3 and the device H enters the opening in the block and expands.
it within the mould as before described.
Instead of the single shaping plate F we may employ two plates each having a
cam slot or groove therein so that as the pin G¹ is moved within the latter by the
lowering of the opposite end of the lever G, the said plates would be brought together
and caused to pass over the projecting edge of the stiffener to form the flange
thereon.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In a stiffener moulding machine the combination of a mould to receive the
blank from which the stiffener is to be formed, a block to fit said mould, a wiper or
shaping plate and a lever for moving the latter past the mould substantially as and
for the purpose described.
2. In a stiffener moulding machine the combination of a mould for the reception
of the to-be-made stiffener, a block for fixing the latter in the said mould with its.
margin projecting, one or more wiper plates and a lever for moving the said plates
over the said margin to form the flange of the stiffener substantially as described.
3. In a stiffener moulding machine the combination of a mould, a divided block
therefor and means for separating or expanding the said block within the mould
substantially as and for the purpose described.
4. In a stiffener moulding machine the combination of a mould, a block such
as CC2 therefor and mechanism for expanding the latter within the said mould.
substantially as described and illustrated in Fig. 3 of the accompanying drawings.
5. The improved machine consisting of the parts constructed arranged and
operating substantially in the manner and for the purpose described and illustrated
in Figs. 1 and 2 of the accompanying drawings.
Dated this 24th day of January 1896.
Witness-
5
E. N. LEWIS,
Berridge Street Chambers,
Liecester.
FRANK HOWARD POCHIN.
H. ADDISON.
Boult & Wade,
Agents for the Applicants.