Improvements in or relating to Heeling Machines.
Year: 1889

page_text: Date of Application, 6th Dec., 1889-Accepted, 11th Jan., 1890
COMPLETE SPECIFICATION.
Improvements in or relating to Heeling Machines.
We, TOM PEBERDY, WILLIAM EARP and THOMAS HERBERT PARR, Boot and Shoe
Machinists, 45 Farnham Street Leicester, 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 has reference to heel building and attaching machines and embodies
improvements specially applicable to the machine described in the specification of
our Patent No. 618 of 1889.
The object of the invention is to provide mechanism for operating the plunger which
drives the pins through the heel; means for ensuring the heel building stand being
in its proper position at the ascent of the plunger; and means for securing the block
and die against accidental movement.
In the accompanying drawings Figures 1 and 2 are front and side elevations
partly in section of a heel building and attaching machine embodying our
improvements.
Fig. 3 is an elevation of the mechanism for operating the plunger, drawn to an
enlarged scale.
Fig 4 is a sectional plan through the centre of the collar A and movable block A'.
Figs. 5 and 6 are front and side views of the mechanism for ensuring the proper
position of the heel building stand.
Fig. 7 is an underside view of the hand wheel showing the recesses R¹.
Fig. 8 shows the hand wheel under the control of the vertical rod S.
The mechanism for operating the plunger consists of a flanged or recessed collar
or bracket A or equivalent carried on the shaft B and formed preferably in two
pieces so as to admit of receiving a block A¹ which is movable transversely to the
shaft B and constructed with projecting ends A2 and A³ which on revolving with the
shaft B respectively come into contact with an adjusting screw C₁ on the end of
the plunger C and a roller D.
The roller D is carried movably by and between two discs D' D¹ on the
driving shaft E the whole forming as it were, and hereinafter referred, as a cam
wheel D'.
The shaft B is revolved by means of a lever F engaging with the clutch G₁
formed on the side of the spur wheel G gearing with the pinion H as described in
the specification of our former patent No. 618 of 1889.
When the vertical slides J have been lowered by the eccentrics B¹ B¹ on each
end of the shaft B and the block K and die K₁ are thereby caused to remain
compressing the heel for a given interval, as described in our former patent, the
shaft B which is revolving brings the end A³ of the block A' into contact with the
roller D of the cam wheel D'; the block A' will thereupon rise on the collar or
bracket A and cause the opposite end-A² to engage with the adjusting screw C¹ on
the end of the plunger C thereby causing the latter to ascend and drive the pins
through the heel or leather under compression.
Immediately the end A³ has passed out of contact with the roller D of the
cam wheel D the spring A* will bring the block A¹ back to its original position.
The pinion H, spur wheel G, and clutch G₁ are constructed to bear such relation
to each other as to ensure the contact of the roller D of the cam wheel D¹ and the
projection A on the first descent of the latter.
In order to ensure that the plate L which carries the heel building stands L' shall
always be in the proper position when the plunger C ascends to drive the pins through
the heel, we employ the following safety mechanism.

page_text: The lower end M₁ of a vertical rod or bar M is pivotted or otherwise secured to
preferably the underside of the cam-bar M2 (referred to in our former patent) the
upper end being connected to a lever N fulcrummed at N¹ to the back of the bed-
plate O. The opposite end of the lever N is connected to the vertical spring-
encircled rod P passing through an opening in the bed-plate O.
It will be seen from this arrangement that when the cam-bar M2 is depressed by
the operator placing his foot on the treadle M³, the vertical rod or bar M will
descend, thereby communicating an upward movement to the vertical rod P which
being loosely pivotted at P2 to the lever N will enter the hole P¹ in the plate L and
remain in that position during the operation of the machine and until the operator
removes his foot from the treadle.
In order to ensure the block K and die K¹ being retained in a desired position
the hand wheel R is provided on its under surface with a series of recesses R¹ to
receive the upper end of a vertical spring-controlled rod S in the cross beam S¹
and prevent the wheel R making any accidental movement.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :
1. In a heeling machine the combination with a
rotating block, such as A¹
capable of reciprocation in a direction transverse to its axis of rotation,. of a
rotating cam wheel such as D D' D' or equivalent, whose speed is proportioned to
the speed of A¹ substantially as described and illustrated in the accompanying
drawings.
2. In a heeling machine a collar or bracket such as A mounted on a shaft B and
carrying a movable block such as A¹ a spur-wheel G pinion H and cam-wheel such
as D. D D operating substantially as and for the purpose herein described and
illustrated in the accompanying drawings.
3. In a heeling machine the combination with the plate L of a stop for ensuring
the proper position of the heel building stand at the time of the ascent of the
plunger substantially as herein described and illustrated in the accompanying
drawings.
4. In a heeling machine the combination with the die-carrying block K of a hand
wheel such as R provided with recesses such as R' into which the end of a spring-
controlled pin such as S is adapted to enter in order to secure the wheel against
accidental movement substantially as herein described and illustrated in the
accompanying drawings.
Dated this 5th day of December 1889.
TOM PEBERDY.
WILLIAM EARP.
THOS. HERBERT PARK.
W. P. Thompson & Boult
Agents for the Applicants.