Improvements in Heel-trimming Machines.
Year: 1886

page_text: Date of Application, 27th Sept., 1886.
Complete Left, 14th Dec., 1886.
Complete Accepted, 14th Jan., 1887,
Improvements in Heel-trimming Machines.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co. Patent Agents,
Southampton Buildings in the County of Middlesex, do hereby declare the nature of
this invention to be as follows:-
This invention relates to heel-trimming machines of that class in which a rotating
cutter, in combination with a rest for the edge and tread surface of the top lift of the
heel to be trimmed, and a guard which protects the upper from the cutter are
employed; both the top lift rest and the guard being independently adjustable and
provided with means for positively holding them in any position to which they may be
adjusted.
The present invention consists, first, in certain improvements in the construction of
the cutter; secondly, in the means for adjustably holding the guard; thirdly, in the
means for adjustably holding the top lift rest; and lastly, in certain minor details, all
of which I will now proceed to describe.
In carrying my said invention into practice I provide a pedestal for supporting the
frame or head having the bearings for the cutter shaft; said shaft is rotated by a
driving belt and has affixed to one of its ends a cutter. The knives of the cutter arc
formed separately, and are clamped between a collar-hereinafter termed a clamping
collar-which bears against a shoulder on the shaft and a second collar-hereinafter
termed the nut collar-which is formed by a nut, on the threaded end of the shaft
turned toward the collar. Said collars have grooves in their inner sides which receive
the bevelled edges of the knives.
The clamping collar has stops corresponding in number to the knives and supporting
the backs of the knives. The nut collar is recessed to receive the nut, and the latter
is provided with sockets to receive projections on a wrench.
By this construction a cutter is produced which has large internal spaces for the
admission of air and the egress of cuttings and which can be readily taken apart and
put together.

page_text: The top lift rest has a surface to support the tread surface of the heel, and a narrow
lip to bear against the margin of the top lift thus limiting the approach of the heel to
the cutter.
The top lift rest has a shank projecting horizontally from it. Said shank has a
groove in its underside, which fits upon a tongue on the upper side of the block. Said
block has a groove in its under side, fitting upon a tongue formed on a bracket or
arm, rigidly attached to the head or frame. The shank groove and block tongue are
at right angles with the block groove and shank tongue so that by sliding the
shank on the block tongue the top lift rest will be moved at right angles with the
axis of the cutter, and toward or from the latter as the case may be, while by moving
the block on the shank tongue the top lift rest will be moved laterally parallel with
the axis of the cutter, so as to overlap the same to any desired extent. The rest is
therefore adjustable only in two directions at right angles to each other, and cannot
swing as on a pivot. This arrangement keeps the rest with its lip at right angles with
the axis of the cutter, so that said lip is always in good working position.
The rest is positively held at any point within its limits of adjustment by a bolt-
secured in a bracket and passing through slots in the shank and block; said slots being
of sufficient length to permit the described movements of the shank and block within
the desired limits. When a screw is tightened its head bears upon the shank and
confines the shank and block against movement in any direction. A rest for the side
of the heel is attached to the bracket.
The guard for the upper is a ring, of sufficient diameter to encircle the outer end of
the cutter, and is attached to a shank. Said shank has a slot and is attached by a bolt
passing through said slot to one end of an arm which arm is pivotted to a fixed bracket
on the head. The bracket is slotted at its outer end to form two clamping plates
bearing on opposite sides of the arm and is of sufficient area to hold the latter firmly
when clamped against it by the bolt which passes through the clamping plates and arm.
The said slot and bolt permit the guard to be adjusted forward and back, to regulate
its forward projection from the front side of the cutter, and laterally to cause it to
overlap the cutter more or less; while the clamping plates and bolt permit the guard
to be readily moved out of its operative position when it is desired to expose the
cutter, and to be readily moved back to and held in its operative position.
The bracket has a stud or stop arranged within the slot or space between the
clamping plates. The margin of the arm within said slot or space is cut away to form
two shoulders, one of which strikes the stop and arrests the swinging movement of the
arm when the guard has been moved sufficiently away from its operative position,
while the other strikes said stop and arrests the opposite movement of the arm when
the guard reaches its operative position.
When the guard has been adjusted at the desired angle to the arm the act of
swinging said guard into and out of its operative position does not affect said adjust-
ment, so that in restoring the guard to its operative position after it has been swung
therefrom, it is only necessary to swing the arm forward until its movement is arrested
by the stop and one of the shoulders.
To the guard is affixed a hood which closes into the upper end of a trunk or passage
communicating with the casing of a blower, supported on the pedestal; the hood
therefore partly closes the open upper end of the trunk or passage and facilitates the
passage of cuttings etc, from the knife into said trunk.
The frame or head has bearings for a second shaft, which is located in front of the
shaft having the trimming cutter, and is driven by a belt connecting pulleys on the
two shafts.
The second shaft has affixed to it a cutter which is formed to trim the upper edge of
the heel, by entering the crease between the heel and the counter or upper of the boot
or shoe and cutting away a portion of the edge or upper surface of the heel that forms
one side of said crease; and also to trim the "heel seat" which is the portion of the
outer surface of the heel immediately adjoining said edge.
The cutter thus "rands out" the heel and trims or finishes the heel seat portion
thereof.

page_text: The cutter is composed of a web or body having a tubular shoulder projecting
from one side at its centre and an inclined peripheral flange which is formed with a
lip at one edge. In said lip and flange are formed a series of notches or recesses,
the rear sides of which are formed as cutting edges extending from the lip nearly,
but not wholly, across the flange, the recesses being not quite deep enough to extend
entirely across said flange, so that a part of the flange is left smooth or uninterrupted
at one end of each cutting edge, and said cutting edge is thereby prevented from
cutting into the outer surface of the heel sufficiently to form a shoulder thereon. That
portion of the cutting edge therefore that formed on the lip trims the upper edge or
rand surface of the heel, while the remaining portion cuts a thin shaving from the
outer surface of the heel just below said rand edge.
A circular plate is applied to the above described cutter as a guard, said plate being
provided with a slight marginal lip which extends around the margin of the lip of the
cutter.
The second shaft passes through the tubular shoulder and through a hole in the
circular plate and said plate and cutter are clamped between a shoulder on the shaft
and a nut secured thereon.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: improvements in Heel Trimming machines.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
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:-
This invention relates to heel-trimming machines of that class in which a rotating
cutter in combination with a rest for the edge and tread surface of the top lift of the
heel to be trimmed, and a guard which protects the upper from the cutter, are
employed, both the top lift rest and the guard being independently adjustable and
provided with means for positively holding them in any position to which they may be
adjusted.
The present invention consists, first, in certain improvements in the construction of
the cutter; secondly, in the means for adjustably holding the guard; thirdly, in the
means for adjustably holding the top lift rest; and lastly, in certain minor details, all
of which I will now proceed to describe.
In the accompanying drawings, forming a part of this specification
Figure 1 represents a perspective view of a heel trimming machine having my
improvements.
Figure 2 represents a top view of the same.
Figures 2 and 2' represent detail views.
Figure 3 represents a horizontal section through the cutter-head, the top lift rest
and the guard.
Figure 4 represents a front elevation of the top lift rest and its supporting devices,
detached.
Figure 5 represents a side elevation of the parts shown in Figure 4.
Figure 6 represents a section on line x, . Figure 4.
Figure 7 represents a side elevation of the cutter.
Figure 8 is a sectional view of the cutter and the upper end of the trunk or passage
which conducts the cuttings from the cutter.
Figure 9 represents a front elevation of a second cutter, hereinafter described.
Figure 10 represents an edge view of the same.
Figure 11 represents a section on line x, x Figure 9.
Figure 12 represents a section on line y, y Figure 10.
Figure 13 represents a section of the cutter applied to the shaft that rotates it, and
provided with its guard.
The same letters of reference indicate the same parts in all the Figures.
a represents the supporting pedestal to which is attached the frame or head a¹,
having the bearings for the cutter shaft b. Said shaft is rotated by a driving belt c,
and has affixed to one of its ends the cutter d. The knives 6, 6 of the cutter are
formed separately, and are clamped between a collar 7, which bears against a shoulder
on the shaft b, and a collar 8, which is forced by a nut 9 on the threaded end of the
shaft toward the collar 7. Said collars have grooves 10; 10, in their inner sides
which receive the bevelled edges of the knives 6.

page_text: The collar 7 has stops 11 corresponding in number to the knives 6 and supporting the
backs of the knives, as shown in Figure 7. The collar 8 is recessed to receive the
nut 9 and the latter is provided with sockets to receive projections on a wrench. By
this construction a cutter is produced which has large internal spaces for the admission
of air and the egress of cuttings and which can be readily taken apart and put
together.
f represents the top lift rest which has a surface 4 to support the thread surface of
the heel, and a narrow lip 5 to bear against the margin of the top lift, as shown in
Figure 3, thus limiting the approach of the heel to the cutter.
The top lift rest has a shank g projecting horizontally from it. Said shank has a
groove h in its underside, which fits upon a tongue i on the upper side of the block j.
Said block has a groove k in its under side fitting upon a tongue / formed on a bracket
or arm m rigidly attached to the head or frame a¹. The grove h and tongue i are
at right angles with the groove k and tongue I so that by sliding the shank g on the
tongue i the top lift rest will be moved at right angles with the axis of the cutter and
toward or from the latter as the case may be, while, by moving the block j on the
tongue the top lift rest will be moved laterally parallel with the axis of the cutter,
so as to overlap the same to any desired extent. The rest is therefore adjustable only
in two directions at right angles to each other, and cannot swing as on a pivot. This
arrangement keeps the rest with its lip at right angles with the axis of the cutter so
that said lip is always in good working position.
The rest is positively held at any point within its limits of adjustment by a bolt o
secured into the bracket m and passing through slots 9, 9 in the shank fand block j
said slots being of sufficient length to permit the described movements of the shank
and block within the desired limits. When the screw o is tightened its head bears
upon the shank fand confines the shank and block against movement in any direction.
A restr for the side of the heel is attached to the bracket.
s represents the guard for the upper which guard is a ring of sufficient diameter to
encircle the outer end of the cutter and is attached to a shank t. Said shank has a
slot u and is attached by a bolt v passing through said slot to one end of an arm w,
which arm is pivotted at y to a fixed bracket z on the head a¹. The bracket z is slotted
at its outer end to form two clamping plates 2¹, 2 bearing on opposite sides of the
arm to, and is of sufficient area to hold the latter firmly when clamped against it by
the bolt y, which passes through the plates z¹, z' and arm w.
It will be seen that the slot u and bolt permit the guards to be adjusted forward
and back to regulate its forward projection from the front side of the cutter, and
laterally to cause it to overlap the cutter more or less; while the clamping plates z¹, z¹
and bolt y permit the guard to be readily moved out of its operative position when it
is desired to expose the cutter, as shown in Figure 1 and in full lines in Figure 2, and
to be readily moved back to and held in its operative position as shown in dotted lines
in Figure 2.
The bracketz has a stud or stop w¹ arranged within the slot or space between the
plates 2, . The margin of the arm to within said slot or space is cut away to form
two shoulders, y', y' one of which strikes the stop 10 and arrests the swinging move-
ment of the arm wo when the guard has been moved sufficiently away from its opera-
tive position while the other strikes said stop and arrests the opposite movement of the
arm to when the guard reaches its operative position.
arm to,
It will be seen that when the guard has been adjusted at the desired angle to the
the act of swinging said guard into and out of its operative position does not
affect said adjustment, so that in restoring the guard to its operative position after it
has been swung therefrom, it is only necessary to swing the arm w forward until its
movement is arrested by the stop to and one of the shoulders y'.
To the guard is affixed a hood c¹ which closes into the upper end of a trunk or
passage d', communicating with the casing e¹ of a blower supported on the pedestal a;
the hood therefore partly closes the open upper end of the trunk or passage and
facilitates the passage of cuttings etc., from the knife into said trunk.

page_text: '
The frame or head a' has bearings for a second shaft A which is located in front of
the shaft b carrying the trimming cutter and is driven by a belt B connecting pulleys
on the shafts b and A.
The shaft A has affixed to it a cutter C which is formed to trim the upper edge of
the heel by entering the crease between the heel and the counter or upper of the boot
or shoe, and cutting away a portion of the edge or upper surface of the heel that
forms one side of said crease, and also to trim the heel seat, which is the portion of
the outer surface of the heel immediately adjoining said edge. The cutter C thus
"rands out" the heel and trims or finishes the heel seat portion thereof.
The cutter C is composed of a web or body 2 having a hub 3 projecting from one
side at its centre, and an inclined peripheral flange 4, which is formed with a lip 5
at one edge. In said lip and flange are formed a series of notches or recesses 6, the
rear sides 6¹ of which are formed as cutting edges extending from the lip 5 nearly,
but not wholly, across the flange 4, as shown, the recesses 6 being not quite deep
enough to extend entirely across said flange, so that a part of the flange is left smooth
or uninterrupted at one end of each cutting edge 61, and said cutting edge is thereby
prevented from cutting into the outer surface of the heel sufficiently to form a
shoulder thereon. That portion of the cutting edge, therefore, that is formed on the
lip 5 trims the upper edge or rand surface of the heel, while the remaining portion
cuts a thin shaving from the outer surface of the heel, just below said rand edge.
A circular plate F is applied to the above described cutter as a guard, said plate
being provided with a slight marginal lip which extends around the margin of the
lip 5 of the cutter. The shaft A passes through the bub 3 and through a hole in the
plate F, and said plate and cutter are clamped between a shoulder S on the shaft and
a nut N screwed thereon.
The cutter made in one piece, as shown, is simple in construction, can be easily
ground by means of a small wheel or other tool entering said recesses, and has ample
clearance (through the notches or recesses 6) for cuttings and chips. Being made
in one piece it does not require taking apart for sharpening nor adjustment after
sharpening.
•
It will be seen that the uncut portion of the flange 4 at the inner ends of the
notches 6, constitute guards which prevent the inner ends of the cutters 6' from
entering the surface of the heel. It is obvious, however, that said notches may extend
entirely across the flange 4, in which case a smooth surface collar or washer should be
clamped against the flange to act as a guard.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to me by my foreign
Correspondent I declare that what I claim is:
:-
First. The improved rotary heel trimming cutter-head composed of the shaft having
a shoulder and a threaded outer end, the collar 7 bearing against said shoulder and
having a groove in its inner side, the collar 8 movable upon the shaft and having a
groove in its inner side, the knives 6 inserted in the grooves in said collars, and
the clamping nut 9 engaged with the threaded end of the shaft, as set forth.
Second. The combination in a heel trimming cutter-head, of the shouldered shaft,
the collar 7 having the groove 10 and stops 11, the collar 8 having the groove 10, the
nut 9 screwed onto the threaded end of the shaft, and the knives clamped between the
collars and bearing at their rear edges against the stops 11, as set forth.
Third. The combination with the rotary cutter, of the top lift rest having the
grooved and slotted shank f, the slotted block j tongued on its upper side and grooved
at its lower side, the groove and tongue of said block being at right angles with each
other, the arm or bracket m having a tongue fitting the groove of the block j, and a
bolt o passing through the slots in the shank g and block j into the arm m²; as set
Fourth. The combination with the cutter, of the guard, the slotted shank t to which
the guard is affixed, the arm w to which the shank t is adjustably secured by a bolt v
forth.
-

page_text: passing through the slot of the shank, the arm or bracket z to which the arm wis
pivottally connected and clamped by a bolt y, and the devices for limiting the swinging
movements of the arm w, as set forth.
Fifth. In a heel trimming machine, the combination of the rotary cutter, the blower,
the trunk d communicating with the blower casing and having an opening at its upper
end, and the swinging guard having a hood c¹adapted to coincide with and partly
close the opening in the trunk, as set forth.
Sixth. A rotary cutter composed of a single piece comprising the web or plate 2,
the hub 3, and the inclined lipped flange 4 having the notches or recesses 6, the
rear sides of which, extending across the lip and partly across the body of the flange
form cutting edges adapted to trim both the rand and heel seat portion of a heel, as
set forth.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.