Improvements in Heeling Machines.
Year: 1889

page_text: Date of Application, 11th Dec., 1889
Complete Specification Left, 11th Sept., 1890-Accepted, 11th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Heeling Machines.
I, FREDERICK CUTLAN, of Castle Hill, Wellingborough, in the County of
Northampton, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the mechanism for operating the plunger which drives
the rivets and fixes the lifts of the heel together. Hitherto in some of these
machines I have employed a cam operating upon a roller carried in the lower end
of the plunger and to clear the cam from contact with the roller when it was not
desired to operate the plunger the cam was generally moved longitudinally upon its
shaft so that it revolved in a different plane to that of the plunger roller.
In my present invention I employ both the cam and the roller but the operation and
construction of the roller are essentially different to that above described. In my
present invention the roller has a piece cut out of it so that when this mutilated
portion of the roller with the plunger at its lowest position is nearest to the cam, the
cam at its greatest throw clears the roller and for this purpose I prefer to make the
mutilated face of the roller a segment of a circle struck from a centre around which
the cam revolves.
For the purpose of turning the roller so as to cause it to engage with the cam
various devices may be employed but a simple and effective one consists in passing
around the periphery of the roller a steel or equivalent band or cord secured to the
roller at one end and at the other to a lever at a suitable distance. To cause the roller
to engage with the cam it is merely necessary to pull the lever; this has the effect of
partially revolving the roller so that its peripheral surface is presented to the cam
which thus takes hold of it and as it turns pushes up the plunger and also revolves
the roller so that I still obtain the rolling friction as in the older constructions. By
the time the cam leaves the roller the mutilated portion has been again presented
towards the cam so that upon the next revolution of the cam it will pass clear of
the roller unless the lever has been again operated and the peripheral face of the
roller be again presented to the cam.
To return the roller to its normal position, that is, out of gear with the cam,
any suitable means, such as a spring or weight may be employed, or this may be
effected by taking advantage of the elastic nature of the steel band already described;
or the roller may be caused to move with sufficient friction in its bearings or upon
its shaft to retain it in the position where it is left when it parts company with
the cam, such position being so arranged that upon the next revolution of the
cam it would pass through the mutilated portion of the roller.
To prevent the roller being carried too far round various means may be adopted
either in connection with the roller itself or the lever, but a convenient way of doing
this is to form a circular slot or recess in the roller and into this to fit a pin,
projection, or equivalent stop from the plunger which thus allows the roller to revolve
to the required limited extent and no further.
Dated this 11th day of December 1889.
W. P. THOMPSON & BOULT,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Heeling Machines.
I, FREDERICK CUTLAN, of Castle Hill, Wellingborough, in the County of
Northampton, 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 the mechanism for operating the plunger which drives
the rivets and fixes the lifts of the heel together. Hitherto in some of these
machines I have employed a cam operating upon a roller carried in the lower end
of the plunger and to clear the cain from contact with the roller when it was not
desired to operate the plunger the cam was generally moved longitudinally upon its
shaft so that it revolved in a different plane to that of the plunger roller.
In my present invention I employ both the cam and the roller but the operation and
construction of the roller are essentially different to that above described. In my
present invention the roller has a piece cut out of it so that when this mutilated
portion of the roller with the plunger at its lowest position is nearest to the cam,
the can at its greatest throw clears the roller and for this purpose I prefer to make
the mutilated face of the roller a segment of a circle struck from the centre around
which the cam revolves.
For the purpose of turning the roller so as to cause it to engage with the cam
various devices may be employed but a simple and effective one consists in passing
around the periphery of the roller a steel or equivalent band or cord secured to the.
roller at one end and at the other to a lever at a suitable distance. To cause the roller
to engage with the cam it is merely necessary to pull the lever; this has the effect
of partially revolving the roller so that its peripheral surface is presented to the
cam which then takes hold of it and as it turns pushes up the plunger and also
revolves the roller so that I still obtain the rolling friction as in the older
constructions. By the time the cam leaves the roller the mutilated portion has been
again presented towards the cam so that upon the next revolution of the cam it will
pass clear of the roller unless the lever be again operated and the peripheral face of the
roller presented to the cam.
To return the roller to its normal position, that is, out of gear with the cam, any
suitable means, such as a spring or weight may be employed, or this may be effected
by taking advantage of the elastic nature of the steel band already described or the
roller may be caused to move with sufficient friction in its bearings or upon its shaft
to retain it in the position where it is left when it parts company with the cam,
such position being so arranged that upon the next revolution of the cam it would
pass through the mutilated portion of the roller.
To prevent the roller being carried too far round various means may be adopted
either in connection with the roller itself or the lever, but a convenient way of doing
this is to form a circular slot or recess in the roller and into this to fit a pin, projection,
or equivalent stop from the plunger which thus allows the roller to revolve to the
required limited extent and no further.
In the accompanying drawings:-
Figure 1 represents a side elevation and
Figure 2 a front elevation of a machine constructed according to this invention;
Figure 3 represents a side elevation and
Figure 4a front elevation of a similar machine slightly modified, and.
Figure 5 is a detail of the cam and roller mechanism used in Figures 3 and 4.
Like letters represent like parts throughout the drawings.
A is the framework, B the operating table, C the plunger, D the crank or driving
shaft, E the treadle, and F the connecting rod between the treadle and the crank G.
H is the cam and I the plunger roller, a portion of which I' is cut away or mutilated as
shown in Figs. 2 and 5. In Figs. 1 and 2 this roller I is carried upon a short shaft J to
which the roller may be fastened, the shaft revolving in suitable bearings in the plunger C
or the shaft J may be a fixture in the plunger and the roller free to revolve upon it.

page_text: Upon the side extension of the roller I is secured the band or cord preferably a
metallic band K and which is connected with the lever L pivoted at L' to any suitable
part of the framework. Upon the shaft J is secured a spiral or other suitable
spring M for the purpose of returning the roller I to its normal position (as in
Figure 2) after it has been moved therefrom.
The operation of the instrument as indicated in Figs. 1 and 2 is as follows:-
The shaft is revolved either by the treadle E or by power through the pulley D¹
and this movement may either be intermittent and imparted when required or may
be constant. The cam H revolves with the shaft D in the direction of its arrow
in Fig. 2 either constantly or intermittently as above described without touching
the roller I or operating the plunger. When it is desired to raise the plunger (
the lever L is drawn forward thus by means of the strap K turning the roller I
in the direction of its arrow in Fig. 2 thus presenting its full diameter to the
cam H which quickly takes hold of it revolving the roller I and as the diameter of
the cam increases forcing up the plunger C as will be well understood. When the
point of greatest diameter H' is reached the cam ceases to be in contact with the
roller I which then returns to its normal position under the influence of the spring M
or by any other convenient means and thus presenting its mutilated portion towards
the cam the latter passes by without touching it until the roller I is again operated by
means of the lever L.
In the form shown in Figs. 3 and 4 the mechanism and operation are substantially
the same the only material difference being the means employed for starting and
returning the roller I. In this case the roller I is carried upon the long shaft J
which at its outer end carries the hand wheel N which is counterweighted so as to
turn the shaft J and roller I to their normal position which as previously explained
would be with the mutilated portion of I presented towards the cam H. The spring
or counterweight of this shaft J would have the same effect and both in this form and
that shown in Figs. 1 and 2 any convenient stop may be provided if desired to prevent
the roller I from being carried too far round or to fix the proper place for its normal
position. In the arrangement shown in Figs. 3 and 4 to raise the plunger the operator
turns the hand wheel N until the operative portion of the roller I comes into
contact with the cam H the counterweight returning it to its proper position.
In the case where the roller is frictionally retarded so as to cause it to stay
where left it may be turned by the operator by means of a shaft carrying a pulley or
roller preferably rubber covered by means of which the roller I could be started the
cam of course continuing to revolve it so far as is required.
Figure 5 serves to show the general arrangement of the cam H and mutilated
roller I and would be applicable to either Figures 1 and 2 or 3 and 4.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a heeling machine the combination with the cam which operates the plunger
of a mutilated roller such as II' substantially as and for the
described
purpose
and illustrated in the accompanying drawings.
2. In a heeling machine the combination with a mutilated roller such as I of a band
and lever K L and spring M substantially as described and illustrated in Figs. 1 and 2
of the accompanying drawings.
3. In a heeling machine the combination with a mutilated roller such as I I' of a
shaft J and counterweighted hand wheel N substantially as described and illustrated
in Figures 3 and 4 of the accompanying drawings.
Doted this 11th day of September 1890.
FREDERICK CUTLAN.
W. P. Thompson & Boult.
Agents for the Applicant