Improvements in Heeling Machinery.
Year: 1894

page_text: Improvements in Heeling Machinery.
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to machinery for building and attaching heels to boots
and shoes and is intended to be made use of in the following operations :-
Building and nailing together the lifts which form the heel. Pricking with awls
the heels. Inserting or loading into the built heel the nails for attaching to the
boot. Loading the heel with blinders. Attaching heels to boots whether nailed
from the inside or the outside of the boot. Sprigging or blinding on top pieces.
Fastening on metal tips. Or for performing any other compressing or nailing
operation in connection with the heels of boots or shoes.
The machine consists of a suitable frame to carry the various parts of the machine
which are arranged thercon in the following manner :-
At the back of the machine is a horizontal driving shaft carried in suitable
bearings and provided with a pulley by which it receives motion from any
convenient source.
The driving shaft is provided with two pinions which gear with two wheels
running loosely upon shafts and provided with clutches.
The gear shafts are carried in bearings and each shaft is provided at one end
with a sliding clutch adapted to engage the clutch upon the gear.
Either of the clutches can be pressed into engagement at will by means of
two treadles conveniently arranged so that the person operating the machine can
use them.
One of the gear shafts is situated above the driving shaft and is put into operation
for the purpose of putting pressure upon the boot heel or for driving nails from
above. The other gear shaft is below and is put into operation for the purpose
of putting on pressure or for driving nails or the awls into the boot heel from
below.
The upper gear shaft operates a beam, pivotted on the top of the machine frame,
actuating it by means of an eccentric and a connecting rod provided with a yielding
spring for safety against breakage.
From the front end of the beam depends a plunger or ram guided in the
frame and carrying at its lower end the blocks or plates which press upon the
heel or drive the nails.
The ram can be adjusted vertically by a screw and hand wheel for the varying
heights of the heels.
In some cases the ram may carry a leg or a last to go inside the boot.
The lower gear shaft is cranked and has a connecting rod to a pair of toggles
at the front of the machine which operate driving rods adapted to engage the
various devices so as to drive the awls or nails or to compress the heel as desired.
The toggles are guided upon a vertical post and a swinging table is provided
to carry the pricking and nailing devices or the lasts as may be required.
The throwing out of the clutches, which are put in operation by the aforesaid
treadles, is performed by the machine by means of switch cams.

page_text: The
The upper cam, which acts to arrest the top beam, is double so as to stop the
beam with the ram alternately in its highest and lowest position, the operating
eccentric on the gear shaft being then either on the top or bottom centre.
switch cam on the lower gear shaft is single and always arrests the crank when
the toggles are down and the driving rods in their lowest position.
These switch cams are compound. The main cam is a grooved cam fast upon
the shaft and engaging a roller on the lever which throws the clutch in and out of
gear. The other or switch portion of the cam is free to turn a little on the shaft
between two fixed stops on the main cam and is held forward by a spring against
the forward stop.
When the switch cam comes round against the cam roll on the throwing out
lever it is thereby arrested until the rear stop comes against it when the cam is
immediately forced forward so as to throw out the lever and withdraw the
clutch.
A spring provided for the purpose then raises the treadle so as to move the
cam lever and roll (which are connected thereto) clear of the point of the switch
cam which then moves forward again under the influence of its spring so that when
the treadle is again depressed the roll moves in again behind the switch, the clutch
is brought into gear and the main cam commencing to revolve engages the cam
roll so as to hold in the clutch until again thrown out by the action of the switch
cam.
The pricking and nailing devices drop upon stems and dowels in the swing
table and can be readily changed for different sizes of heels or removed to make
way for the inside or outside attaching lasts.
The head which presses upon the boot heel may be pitched by means of changing
wedges to suit different heels.
If desired the machine may be divided or constructed as two machines the one
to be used solely for preparing heels and the other for attaching them in which
case the parts not requiring to be used may be discarded in either machine.
Dated this 8th day of November 1894.
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford,
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 :-
This invention relates to machinery for building and attaching heels to boots and
shoes and is intended to be made use of in the following operations:-
:-
Building and nailing together the lifts which form the heel. Pricking with awls
the heels. Inserting or loading into the built heel the nails for attaching to the
boot. Loading the heel with blinders. Attaching heels to boots whether nailed
from the inside or from the outside of the boot. Sprigging or blinding on top
pieces. Fastening on metal tips.
The machine consists of a suitable frame to carry the various parts which are
arranged thereon in the following manner :-
At the back of the machine is a horizontal driving shaft provided with a pulley
by which it receives motion from any convenient source.
Upon the driving shaft are keyed two pinions gearing with two wheels which
run loose and are provided with clutch teeth.
Each of the shafts which carry the gear wheels is provided at one end with a
sliding clutch adapted to engage the clutch teeth upon the gear wheels. Either of

page_text: the clutches can be pressed into engagement at will by means of two treadles
conveniently arranged so that the person operating the machine can use them.
One of the gear shafts is situated above the driving shaft and is put into
operation for the purpose of putting pressure upon the boot heel or for driving
nails from above. The other gear shaft is below and is put into operation for the
purpose of putting on pressure or for driving nails or the awls into the boot heel
from below.
The upper gear shaft operates a beam pivotted on the top of the machine frame
actuating it by means of an eccentric and a connecting rod provided with a spring
for safety against breakage. From the front end of the beam depends a plunger
or ram guided in the frame and carrying at its lower end the blocks or plates
(hereafter called the presser head) which press upon the heel or drive the nails.
The ram can be adjusted vertically by a screw and hand wheel for the varying
heights of the heels. In some cases the ram may carry a leg or a last to go inside
the boot.
The lower gear shaft is cranked and has a connecting rod to a pair of toggles at
the front of the machine which operate driving rods adapted to engage the various
devices so as to drive the awls or nails or to compress the heel as desired. The
toggles are guided upon a vertical post and a swinging table is provided to carry
the pricking and nailing devices or the lasts as may be required.
The throwing out of the clutches (which are put in operation by the aforesaid
treadles) is performed by the machine itself by means of switch cams.
The upper
cam which acts to arrest the top beam may be double so as to stop the beam with
the ram alternately in its highest and lowest position, the operating eccentric on
the gear shaft being then either on the top or bottom centre, or the cam may be
single and arrest the ram only in its highest position. The switch cam on the
lower gear shaft is single and always arrests the crank when the toggles are down
and the driving rods in their lowest position.
These switch cams are compound. The main cam is a grooved cam fast upon
the shaft and engaging a roller on the lever which throws the clutch in and out of
gear. The other or switch portion of the cam is free to turn a little on the shaft
between two fixed stops on the main cam and is held forward by a spring against
the forward stop. When the switch cam comes round against the cam roll on the
throwing out lever it is thereby arrested until the rear stop comes against it when
the can is immediately forced forward so as to throw out the lever and withdraw
the clutch. A spring provided for the purpose then raises the treadle so as to
move the cam lever and roll (which are connected thereto) clear of the point of the
switch cam allowing it to move forward again under the influence of its spring
past the cam roll so that when the treadle is again depressed the roll moves in
again behind the switch, the clutch is brought into gear and the main cam
commencing to revolve engages the cam roll so as to hold in the clutch until again
thrown out by the action of the switch cam.
The pricking and nailing devices drop upon stems and dowels in the swing table
and can be readily changed for different sizes of heels or removed to make way
for the inside or outside attaching lasts.
The presser head (which presses upon the boot heel) may be pitched or inclined.
to suit different heels.
If desired the machine may be divided or constructed as two machines, the one
to be used solely for preparing heels and the other for attaching them, in which
case the parts not requiring to be used may be discarded in either machine.
My invention is illustrated by the accompanying drawings in which.
Fig. 1. is a side view of a heel building and attaching machine shewn as
performing the operation of attaching a heel by nailing from the inside of the
boot.
Fig. 2. is a front view of the same.
Fig. 3. is a sectional plan shewing the starting and stopping gear for the upper
pressure movement.

page_text: 1. is a sectional pran sewing the starting and stopping gear for the lower
pressure movement.
Fig. 5 is a view of one of the switch cams.
The machine frame a carries the driving shaft a¹ in the bearings a² a³ and the
driving shaft a¹ has mounted upon it the driving pulley a' and the pinions as a
which revolve in the direction shewn by the arrow.
The pinion a gears with the wheel running loose upon the shaft which is
carried in the bearings 6263 and the pinion a gears with the wheel c running loose
upon the shaft c¹ which is carried in the bearings c² c³.
Upon the wheels b and c are formed clutch teeth and c adapted to engage
with which are clutches b and c which are free to slide upon feathers in the
shafts and c¹ and can be put into gear by means of treadles * and c so as to
cause the shafts b and c to be driven.
The treadle (see also Fig. 3) is mounted on the pivot 6 in the frame a and is
connected by the rod 8 and joint pins & 10 to the lever b" which is mounted on
the shaft carried in bearings 314 in the frame a. The toothed segment 615
is mounted on the other end of the shaft and gears with another toothed
segment mounted on the shaft 618 carried in the bearing 619 in the frame a and
having mounted upon it the clutch fork 620 which engages the clutch 6. By
depressing the treadle the clutch is put into gear.
The treadle c (see also Fig. 4) is mounted on the shaft c' and has formed upon
it a toothed segment 8 engaging the toothed segment c which is mounted on the
shaft carried in the bearings elle in the frame a. The clutch fork ca being
mounted upon the other end of the shaft c¹ and engaging the clutch c. By
depressing the treadle the clutch c is put into gear.
The shaft is for putting on pressure or driving nails into the boot heel from
above and for this purpose is provided with the eccentric d and connecting rod d
the upper end of which is jointed by the pin 2 to the rear end of the beam d³ which
is carried on the pin d in the frame a and jointed by the crosshead d³ and screw d
to the ram d².
The ram d' is guided vertically in the frame a and can be adjusted up and down
to suit variations in the heights of boot heels by means of the screw d and hand
wheel d. It is bored at its lower end to receive the stem d of the pressure head
which is made in two pieces 10 d the lower of which d" can be pitched or inclined
to suit the boot heel and is cramped fast by the screw 2 which passes through the
slotted tongne d¹³ of the piece d" and the jaws of the piece d¹º.
The connecting rod d' is provided with a spring d which yields so as to prevent
breakage of the machine should undue pressure accidentally come upon it.
The shaft c is for putting on pressure or for driving nails or the awls into the
boot heel from below. It also serves to withdraw the awls and for these purposes
is provided with the crank e and connecting rod e jointed by a pin to the
togglese. This toggle motion is similar to that described in the Specification
of former Letters Patent granted to me No. 15540 A.D. 1891 and is as follows:-
The lower toggle ³ is mounted on the pin e in the post e which forms part of the
machine frame and the upper toggle e is jointed to a slide e' which slides upon the
post and carries two driving rods ee in the upper ends of which are formed
notches el el adapted to engage the ears e¹2 els formed on the attaching device els
which is carried on the swinging table el. Rotation of the crank e causes the
rods to move up and down and so operate the attaching device e" or other
device which for the time being occupies the machine.
In the drawings Figs. 1 and 2 the machine is shewn as operating an attaching
device e¹ of a usual construction but this device is readily removable to make way
for other devices and apparatus usually made use of in building and attaching heels
to boots.
In prior Specifications of Letters Patent granted to me (No. 15540. A.D. 1891
previously referred to and No. 699 A.D. 1893) various forms of heel building
pricking and attaching devices and apparatus for attaching heels to boots and

page_text: shoes are described and illustrated any of which in Specification No. 699 A.D. 189.;
and any of those illustrated on Sheets 3 and 4 of Specification No. 15540 A.D. 1891
are applicable to and intended to be used with this my present invention.
The throwing out of the clutches and after they have been put into
operation by the treadles b and c is performed by the machine by means o
switch cams ƒ and g. The upper cam f which acts to arrest the top beam d³ and
presser head d is shewn in the drawings Fig. 1 and Fig. 5 double so that it acts
twice during its revolution and stops the beam d³ and presser head d" alternately
in their highest and lowest positions. It is formed with two throwing out places f¹
and the former acting when the presser head d" is fully down and the latter
when the presser head d" is fully up.
The cam groove f³ engages the roll f carried on the lever f which is part of
the before mentioned lever ". The switch piece fo is free to turn a little on the
boss of the cam fand a coiled spring (see Fig. 5) serves to keep it in its
forward position against the stop until the time for throwing out arrives. The
cam revolving in the direction shewn by the arrow brings the incline f10 of the
switch into contact with the roll f which arrests the switch until the pojection f
formed upon the cam comes in contact with and forces the switch forward. The
incline pushes up the roll f* and lever f³ so as (through the shaft 612
segments 118 shaft 18 and fork 620 previously mentioned) to withdraw the
clutch from the gear b. The spring f" then acts to draw down the rod b³ so as
to lift the roll f clear of the switch point f 13 which then moves forward past the
roll (see Fig. 5) under the influence of the spring 8 until arrested by the
stop so leaving sufficient room behind the switch to allow the roll f' to
move in again to the position "when the clutch is again put into gear by
depressing the treadle 6. The other end of the switch facts in a precisely
similar manner in the opposite half f² of the cam when the presser head d" is in
its highest position.
The object of the cam and its connections is to automatically stop the machine
in the desired places and the switch pieces ff are made to spring forward after
acting so as to be out of the way of the cam roll f' when the same is again moved
inwards to the position 15 (Fig. 5) by depressing the treadle 66 to restart the
machine.
The cam g is exactly similar only single, acting to stop the machine when the
rods are in their lowest position. It acts through the cam roll g¹ and lever g²
(upon the shaft 7 segments c c shaft c¹ and clutch fork c¹³ previously mentioned)
to withdraw the clutch c³.
If the machine is made as two machines, the one machine for preparing heels
only and the other machine for attaching the same by outside nailing, the upper
movement is discarded in the one case and the lower movement in the other case.
The upper movement is comprised in the parts a 6 to 120 d to d d and f to f14.
When these are discarded the crosshead №³ must be carried by a suitable bracket
from the frame a.
The lower movement is comprised in the parts a c to c¹³ e to e¹ and 9 to 9².
When these are discarded the post e may be replaced by one of simpler
construction.
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. The upper pressure movement consisting of the eccentric, connecting rod,
spring, top beam, ram and presser head, as and for the purpose described.
2. The stopping cam with the switch or moveable piece furnished with one or
more acting points, substantially as described.
3. The combination of the switch cams with the treadles, clutches and con-
nections, substantially as described.

page_text: 4. The combination of the upper pressure movement with the lower pressure
movement and the switch cams, substantially as described.
5. The herein described and illustrated machine for building and attaching heels
to boots and shoes.
Dated this 2nd dor of Aum 1905
W. H. DORMAN.