Improvements in Machines for Forming Heel Stiffeners for Boots and Shoes.
Year: 1894

page_text: Date of Application, 20th Feb., 1894-Accepted, 30th June, 1894
COMPLETE SPECIFICATION.
[Communicated from abroad by LOUIS COTÉ, of St. Hyacinthe, in the Province of
Quebec and Dominion of Canada, Manufacturer.]
Improvements in Machines for Forming Heel Stiffeners for Boots
and Shoes.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 machines for forming heel stiffeners for boots and shoes,
and is an improvement upon the machines shown and described in the United States
Letters Patents Nos. 435,481, 447,944, and 469,774, granted September 2nd, 1890,
March 10th, 1891, and March 1st, 1892, respectively, and it consists in certain
novel features of construction, arrangement and combination of parts, which will be
readily understood by reference to the description of the accompanying drawings in
which,
Figure 1 of the drawings is a front side elevation of a machine embodying my
invention.
Figure 2 is an end elevation of the saine.
Figure 3 is a plan of the bed or table of the machine, and the side forming and
flange turning mechanisms.
Figure 4 is a vertical section on line 1, 1 on Figures 2 and 3.
Figure 5 is a partial vertical section on line 2, 2 on Figures 2 and 3.
Figure 6 is a plan of the former for re-shaping the heel end of the stiffener, and
the fixed arm for supporting said former.
Figure 7 is an end elevation of said former detached from its supporting arm.
Figure 8 is a plan of the mould carrying lever for shaping the heel end of the
stiffener.
Figures 9 and 10 are respectively a side elevation and an inverted plan of the
former for re-shaping the sides of the stiffener, to be used when it is not desired to
turn the flange or heel seat to fit the bottom of the last.
Figure 11 is a vertical section on line 3, 3 on Figure 10.
Figures 12 and 13 are respectively a side elevation and an inverted plan of the
former for re-shaping the sides of the stiffener, to be used when it is desired to turn
the flange or heel to fit the bottom of the last.
Figure 14 is a vertical section on line 4, 4 on Figure 13, and
Figure 15 is an elevation of the forked stop for locating the mould adjusting
Screw.
A is the main frame of the head of the machine, secured to the top of the
column B, only a small portion of which is shewn, and having firmly secured
thereto and to said column the table A' upon which are mounted the devices for
re-shaping the sides of the stiffener and turning the heel seat flange.
The frame A has mounted in bearings therein the shafts C, D, E, and F, and the
shaft C has mounted thereon the fast and loose pulleys G and G', and is connected
by the spur gear wheels a, b, c and d with said shafts D, E and F.
H and H are respectively the former and mould for performing the operation of
imparting to the flat blank both longitudinal and lateral curves.
The shaft F has mounted thereon the wedge like revoluble cam J, see Figure 2,
for operating the devices for re-shaping the side portions of the stiffener.

page_text: The table A¹ has mounted in pendent bearings thereon, the horizontal recipro-
cating rod T, Figures 1, 2, 3 and 4, to which motion is imparted by the crank pin k
set in the crank disc K, secured on the shaft k' Figures 2, and 3 mounted in a
bearing in the hub A², Figure 3, projecting horizontally from the foot or flange A³
of the table A', said shaft having secured thereon the gear wheel d' which is
engaged and operated by the gear wheel d, Figure 2.
The rod T is connected to and disengaged from the bracket or arm R which
carries the flange turner S, by means of the pivoted latch lever q.
So far the several parts are constructed, arranged, and operated substantially as
in said before cited Patents, except in some few matters of detail which will be
hereinafter explained.
In the machines described in said prior Patents the upper end of the frame had
mounted therein so as to be adjustable, but remain fixed when in operation, a mould
with which a revolving disc mounted on the shaft D co-operated to re-shape the heel
end of the stiffener.
In this present invention said disc is dispensed with and the hub or boss at the
upper end of the frame is removed therefrom; a cross-arm I, Figure 2, is bolted
firmly to the frame A so as to project laterally therefrom in opposite directions and
has adjustably set in one end thereof the heel shaped former 1', and has pivoted to
, its opposite end the crooked lever L, the free end of which has adjustably set
therein the mould L' which serves as a hammer-head-co-operating with the former I'
in re-shaping the heel end of the stiffener when the lever L is vibrated about its
pivotal connection to the arm I, by the action of the crank pin l, upon the sides of
the slot formed in said lever L as shown in Figure 2.
In the machines described in prior cited Patents, the former for re-shaping the
side portions of the stiffeners was made in two parts divided longitudinally and
vertically and pivoted together at or near its heel end and the opposite end was
acted upon by the wedge like cam J and a spring to vibrate said parts of the former
and cause them to co-operate with the moulds O, O, which were pivoted to the
pistons N N so as to be adjustable towards and from said former and having secured
thereto, the plates s which project into slots in the table A' as shewn.
In my present invention the former P is secured to the bed A', Figures 1 and 3,
in a fixed position and is not acted upon by the cam J and the moulds O O are not
pivoted to the pistons N but instead, the moulds OO are pivoted or fulcrumed at
about the middle of their lengths, upon the outer ends of the levers O', O' which
are mounted upon studs m m set in the pistons N N, Figure 4, and are provided at
their inner ends with anti-friction rolls, u, u Figure 3, upon which the cam J,
Figure 2 acts to move said levers about their fulcrums in one direction while the
spring m¹ moves them in the opposite direction and thus causes the moulds O 0 to
be moved towards and from the former P and strike a series of blows upon the
stiffener interposed between said former and moulds to re-shape its sides.
The under sides of the moulds O, O are made flat, and rest upon the table A³,
and each of said moulds has set in its inner end so as to be adjustable therein the
stop-pin n which, when the levers O₁ O₁ are being acted upon by the cam J to
move said moulds towards the former P, comes in contact with the side of said
former at or near its inner end, and limits the inward movement of the inner end
of said moulds O, O.
The former P is secured in position by the clamping bolt o, the thumb nut o¹ and
the pin o² set in said former and fitted to a hole in the bed A¹, said nut o' having
beneath it a metal washer o³ which rests upon the rubber spring of fitted to a
circular recess formed in the upper side of said former P as shown in Figures 11
and 14.
The moulds O, O have pivoted to their under sides at their outer ends the
segments p shown in full lines in Figures 1 and 2 and in dotted lines in Figure 3,
and constructed and arranged to operate in connection with the flange turning
plate S, carried by the bracket or arın R, substantially as described in the before
cited Patent No. 469,774, for the purpose of turning the heel seat flange.

page_text: The pistons N are adjusted towards and from each other by means of the screw
shaft N having formed thereon right and left screw threads which engage with
and act upon the nuts N2 set in the inner ends of said pistons as shown in Figure 4,
said screw shaft being operated by the handle n¹ and prevented from moving
endwise by the forked plate s set in the bed A' and engaging a circumferential
groove formed in said shaft at a point near the middle of its length.
A rubber spring n² surrounds said screw shaft outside of each of the pistons N,
against which the follower n³ also fitted on said shaft, bears and upon which the
wheel nut N3 acts to regulate the tension of the spring n all as shown in Figure 4.
The upper side of the heel end of the former P has a longitudinal groove formed
therein in which is adjustably secured the plate p₁ by means of a set screw p³ for
the purpose of varying the pitch or shape of the rear end of said former to adapt
it to stiffeners of different patterns.
It is necessary that the inner faces of the moulds L' and O should be made to
conform accurately to the shape of the formers l' and P or be parallel thereto
when the distance therefrom is equal to the thickness of the heel stiffener to be
shaped thereby, and to accomplish this result in a comparatively inexpensive way,
it is desirable that said moulds be chambered and that said chambers be filled with
Babbitt metal by casting it upon the former.
In order to accomplish this and have the mould of the right shape I make the
former in two or three parts, in the case of the former P in two parts, the line of
division being horizontal as shown in Figures and 12, and when it is desired to
cast the Babbitt lining into the moulds OO a thin piece of metal r is placed
between the upper and lower halves of said former as shown in Figure 11, and the
former is then placed in position on the bed of the machine and the moulds are
placed on each side of said former at the proper distance therefrom for the required
thickness of Babbitt, with a piece of metal beneath each mould of a thickness
equal to one half the thickness of the piece placed between the two parts of the
former and all the parts are firmly clamped in position on the bed of the machine,
when the Babbitt metal is poured into the mould while so clamped and the pieces
of the metal are removed from beneath the moulds and from between the two parts
of the former and the upper and lower parts of the former P are clamped firmly
together and to the table A when if a heel stiffener be placed on said former, and
the moulds O, O be pressed upon it, it will be found to conform thereto and shape the
stiffener to said former.
The former 1', is made in three pieces and expanded by placing thin pieces of
ne:al Figure 7, between the parts for use in casting the Babbitt lining into
the mould L' which pieces are removed when the former is placed in position
in the machine for shaping stiffeners.
The parts of the machine shown in the drawings and not referred to in the
foregoing description are constructed and operate substantially as described in the
cited United States Patent No. 469,774, and need not be described in detail here.
The operation of my invention is as follows:-
:-
"
The machine being set in motion by shipping the belt from the loose pulley to
the fast pulley a flat blank is passed endwise between the former H' and mould H
to form what is termed in the trade a "clam shell counter which is then placed
upon the former I' with the centre of said counter upon the highest part of said
former when the vibrations of the hammer like lever L and the mould L' will
impart repeated blows to the stiffener and cause its centre portion to permanently
assume a shape, substantially conforming to the former I'.
When this is done the stiffener is placed upon the former P with its edge
resting upon the table A when repeated blows will be imparted to the sides of the
stiffener to make said sides conform to the shape of the side portions of the former P
including the turning of the side portions of the bottom edge of said stiffener
heneath the former to form the heel seat, if the former shown in Figures 12, 13,
and 14, is in the machine, in which case at the proper time the plate S is moved
forward to turn the rear portion of the heel seat.

page_text: If a stiffener is to be re-shaped without turning the heel seat flange, the former P
shown in Figures 9, 10 and 11 is substituted for the one shown in Figures 12, 13
and 14 and moulds OO that conformn to the said former are placed in the machine
and the flange turner S is rendered inoperative by the bracket R remaining
.disconnected from the rod T.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, 1 declare that what I claim is :-
1st. In a machine for forming heel stiffeners the combination of the bed or
table A' having a cylindrical bore extending transversely through the same; a pair
of piston-like blocks N fitted to said bore and having the plates s secured thereto
and projecting upward through slots in said table; a nut set in the inner end of
each of said pistons; the screw shaft N'having right and left screw threads formed
thereon and fitted one to each of said nuts; the forked stop s¹ set in the table A¹
and engaging a groove in said shaft; the springs n²; the followers n³; the wheel
nuts N3; the lever n' or other means of revolving said shaft; the studs m set in
said pistons; the levers O'¹ mounted on said studs; the moulds O, O fulcrumed
upon said levers; a heel shaped former secured to the table A', in a fixed position;
the cam J; and means having provision for revolving said cam.
2nd. In a machine for forming heel stiffeners the combination with the table A¹
of the stud or bolt o set in said table; a heel shaped former fitted to said stud and
provided with the steady pin o² and a circular recess in its upper side and
surrounding said stud o; the rubber spring of the nut o' and the washer o³ all
constructed, arranged and operating substantially as and for the purposes
.described.
3rd. In a machine for forming heel stiffeners the combination with a pair of side
>moulds and means for operating said moulds; of a fixed former secured to the
table of the machine and provided with an adjustable piece fitted to a longitudinal
groove in the heel end of said former and adapted to be adjusted longitudinally
therein to form counters of different shapes.
Dated this 20th day of February 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.