provements in or relating to Machinery for Paring the. Heels of Boots and Shoes.
Year: 1889

page_text: Date of Application, 1st Jan., 1889
Complete Specification Left, 27th Sept., 1889-Accepted, 9th Nov., 1889
PROVISIONAL SPECIFICATION
Improvements in or relating to Machinery for Paring the. Heels of
Boots and Shoes.
I, WILLIAM FAIRBURN HART of the General Assurance Buildings, No. 1, East
Parade, Leeds, in the County of York, Patent Agent, do hereby declare the nature of
this invention which has been communicated to me from abroad by Charles Smith
Larrabee, of 8, Untermain Anlage, Frankfurt-on-Main, in the Empire of Germany,
to be as follows:-
This invention has reference to that class of machinery such as is used in the Boot
and Shoe Trades for paring the heels, and its object is to provide means or apparatus
for imparting to the boot or shoe (when fixed in the "Jack") what the communicator
terins a "horizontal cycloidal" motion whereby the operator is enabled to pare any
desired number of heels correctly to the same size and shape.
"
In machines as at present constructed a shaped template is made to work against
a round dise on one end of the cutter shaft, and the shape of the heel is obtained by
the operator more or less depressing the "Jack as the shape requires. Now according
to this invention in one of the arms of a "Jack" that may be raised or lowered by a
treadle is mounted a spindle which is armed with a template or dummy (shaped to
give the exact configuration of the heel), a flanged heel plate, and a lever against
which the sole rests when the boot or shoe is held in position for the paring
operation.
The portion of the spindle that fits into the arm of the "Jack" is preferably made
round, whilst that portion on the which the shaped template or "dummy" is mounted
may be square. The spindle may be placed at any required angle to the heel plate.
according to the shape or under set of the heel, and the template or dummy may
be placed in any desired position on the square portion of the spindle as well as any
required angle thereto.
The template or dummy is made to work in a hinged guide attached to a holder
carried below and parallel with the Cutter Shaft, in a bearing working in vertical slides,
so as to be capable of horizontal and vertical adjustment by means of a rack and worm,
or screw, or it or their equivalents.
To the vertical sliding bearing is attached a pin or finger which works over a
scale or guage formed on or is attached to one of the sides of the vertical slides.
Each spindle is numbered, and a table of sizes is arranged to correspond with the
number of the spindle, and the scale or guage on the vertical slide, so as to enable
the operator when he takes a spindle of a given number to know (by referring to the
table of sizes) to what height the bearing carrying the hinged carrier must be
adjusted in the vertical slide so as to pare the heel correctly.
A guage may also when preferred be provided for the adjustment of hinged carrier
in a horizontal direction in a similar manner.
3000
COMPLETE SPECIFICATION.
Improvements in or relating to Machinery for Paring the Heels of
Boots and Shoes.
I WILLIAM FAIRBURN HART of the General Assurance Buildings No. 1 East
Parade Leeds in the County of York Patent Agent, (a communication to me from
abroad by Charles Smith Larrabee, of S Untermain Anlage, Frankfort-on-Main, in
the Empire of Germany Engineer do hereby declare the nature of this invention and in

page_text: what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention has reference to that class of machinery such as is used in the Boot
and Shoe Trades for paring heels, and its object is to provide means or apparatus for
imparting to the boot or shoe (when fixed in the "Jack") what the communicator.
terms a
horizontal cycloidal "motion whereby the operator is enabled to pare any
desired number of heels correctly to the same size and shape.
In machines at present constructed a shaped template is made to work against al
round disc on one end of the cutter shaft, and the shape of the heel is obtained by
the operator more or less depressing the "Jack" as the shape requires.
In the drawings:-
Figures 1 and 2 are respectively a longitudinal elevation and end elevation of heel
paring machine with the improvements applied. Fig. 3. a plan of Jack with improved
holder applied. Figs. 4 and 5 are respectively an enlarged plan and elevation of holder.
Figs. 6 and 7 a plan and sections of template drawn on a reduced scale. Figs. 8 and 9.
enlarged side and end elevations of adjustable slide and carrier. Fig. 10 a transverse
section of framing and slide block. Figs. 11, 12, 13, and 14 are enlarged end and
front elevations of flanged plate. Figs. 15, 16, and 17 views of boot heel in three
positions whilst under operation.
Like parts in all the views are marked with the same letters of reference.
A is the machine head which may be mounted upon suitable legs or framework.
B the horizontal driving shaft carried in bearings a a' in the head A and armed at
one end with a cutter holder or block C and at the other with a driving pulley D.
E, E, E are the paring knives or cutters provided with cutting edges of a similar
shape to that of the contour of the heel to be operated upon. The cutters are attached
to the block C by screws or any other convenient means. F is a hinged shield or
protection (which partially covers the knives or cutters when in operation) which
is capable of being raised when the cutters require adjustment or attention. G is a
jack attached at one end by a universal joint to pillar H in such a manner that its free
end may be raised or lowered by the operator by means of a treadle and chain. In
the army of the bifurcated end of the Jack G is mounted a screw gl armed at one
end with a spiked pressing piece 2 aud at the other with a hand wheel g³. G is a
guide mounted on the end of shaft B against which the seat of the heel impinges.
All the above described parts and means for imparting a rotary motion to the shaft B
may be of ordinary construction.
is
Below the above mentioned shaft B and working in vertical slides a³, provided for
its reception in the front part of the machine head A, is a block I which may bo
raised or lowered by a screw i armed with a hand wheel or milled headed projection i¹.
To one side of aud at say about five inches above the block I is cast or attached a
horizontal cup or slide 2 (say about four or five inches in length and having an internal
diameter slightly larger than that of the diameter of the shaft) armed with a rack ³.
On the cup or slide is mounted so as to slide freely a carrier. The carrier
retained on the slide by means of the projecting lips as shown at Fig. 8. The
carrier is traversed to and fro on the slide by a pinion formed on or attached
to the spindle (diagonally mounted in the carrier as shown at Fig. 9) and made to
gear with the rack
In order to prevent the carrier from moving during the paring
operation a ratchet wheel is also mounted on the spindle into which a spring
catch or pawl (fixed to the carrier) is made to engage. To the front end of carrier
is pivoted a bearing to which is hinged a bifurcated piece for purposes to be here-
after described.
A finger or pointer it is also fixed to block I which works over a scale or guage
formed on or attached to one side of the vertical slide. Each spindle (to be hereafter
described) is numbered, and a table of sizes is arranged to correspond with the number
of the spindle, and the scale or guage on the vertical slide, so as to enable the
operator when he takes a spindle of a given number to know (by referring to the
table of sizes) to what height the bearing carrying the hinged piece 10 must be
adjusted in the vertical slide so as to pare the heel correctly.

page_text: A guage may also when preferred be provided for the adjustment of hinged carrier
in a horizontal direction in a similar manner. In the arm g of the Jack G is mounted
a spindle J which is armed with a template or dummy K (shaped to give the exact
configuration of the heel), a flanged heel plate L, and a lever M against which the
sole may if desired rest when the boot or shoe is held in position by spiked pressing
piece gand screw g¹ for the paring operation.
The portion of the spindle that fits into the arm g of the "Jack" is preferably
made round, whilst the portion on which the shaped template or dummy K is
mounted may be square or rectangular. Between the flanged heel piece L and
handle M is a block N which is held in position by pins n n¹, and countersunk screw n³.
In order to obtain the required "horizontal cycloidal " motion for paring any required
number of heels to a given shape one or all of the following methods may be adopted
(a) the spindle J may be attached or formed at any required angle to (above or below)
the horizontal plane, or (b) the heel piece L may be made cuneform with its
apex at the flange as shown by dotted line
1 fig. 13 when the cycloidal motion
is required to be given to the left, or when such motion is required to be given to the
right then the apex of the cuneform piece may be at the top as shown by dotted
line
fig. 13; or (c) the said movements may also be obtained by making the
block N taper upward or downward as shown at Figs. 11 and 12; or (d), the
template K may be mounted at any angle upon the spindle J as shown at Fig. 1.
When the latter method is employed the template is fixed upon the spindle in the
following manner. In the template is cut or formed a slot hole k which in width
is made to fit the square portion of the spindle. In the square or rectangular portion
of the spindle is a recess in which a double wedge shaped piece is made to work
against inclines formed on the inner side of a covering piece which fits the recess.
A slight horizontal sliding motion is imparted to the double wedge j³ by a screw j³
carried in bearings formed in the spindle J, and retained in position by means of
the cap O screwed on to the reduced end of the round portion of the spindle and
projection. By this means when the template has been placed at the required angle
upon the square or rectangular portion ¹ it may readily be locked thereon by turning
the screw until the wedges have forced the covering piece outwards thereby
jamming the sides of the template against that of the spindle and outer portion of
piece j*.
The template K is arranged to work between the bifurcated ends of the carrier (10
which by being hinged to the pivoted bearing is enabled to automatically adapt
itself to the template during its semi-circular movement.
When the spindle and template are arranged at a right angle to each other as shown
at Figs. 4 and 5, as the round portion of the spindle is made by the operator to
revolve in its axial bearing (in the arm g*) a rotary motion will be given to the boot
heel. But when the heels are underset as for instance in a Wurtemburg heel the
spindle or heel piece and template are placed at an acute or obtuse angle to the hori-
zontal plane; as the round portion rotates in its axial bearing a horizonal cycloidal
notion will be imparted to the heel. During which motion of the spindle by retaining
the template in the bifurcated end of the hinged carrier 10 and allowing the boot to
impinge upon the guide G¹ the position of the Jack may be regulated so that the
whole of the periphery of the heel may be presented to the action of the paring knives
or cutters,
By the above described arrangement any number of heels may be pared to a given
size and shape without readjusting the machine. But when it is required to adjust
the machine to another size or shape the block I and carrier may be readily set by
their respective guages or scales to the required-sizes and held there by ratchet wheels
and spring catches or pawls.
Having now particularly described and ascertained the nature of the said
invention (as communicated to me from abroad) and in what manner the same is to
be performed, I declare that what I claim is.
1. In a heel paring machine, as herein set forth, the means or arrangement of parts

page_text: substantially as described for obtaining the horizontal cycloidal motion for presenting
the whole of the perimeter of the heel to the action of the revolving cutters, said
means consisting of a spindle such as J mounted in axial bearings in one of the arms
of the Jack so as to work parallel with or at an angle to the horizontal plane of the
machine, said spindle being armed with an adjustable shaped template such as K and
inclined or parallel faced and flanged heel piece such as L arranged at a right or
any required angle to the spindle or horizontal plane or to each other, and the
means for adjusting the same to heels of various sizes or shapes substantially as set
forth and illustrated.
2. In a heel paring machine the combination of a spindle such as J, adjustable
shaped template such as K (and means for retaining the same in position on said
spindle) inclined on parallel faced and flanged heel pieces such as L, handle such as M,
and block such as N, all arranged at a right or any required angle to each other, as
and for the purposes set forth.
3. In a heel paring machine the combination of a tool for guiding the heel during
the paring operation having a spindle such as J, adjustable shaped template such as K
and inclined or parallel faced and flanged heel piece such as L arranged at a right,
acute or obtuse angle to each other or the horizontal plane of the machine, with
a sliding block such as I, horizontal carrier such as and parts connected there-
with, and with the Jack and revolving cutters, as and for the purposes set forth.
4. The combination of the various parts forming the heel paring machine as a
whole, arranged substantially as herein set forth and illustrated.
Dated this Twenty-fifth day of September 1889.
W. FAIRBURN HART.