Improvements in or relating to Machinery for Paring the Heels of Boots, Shoes, or the like.
Year: 1889

page_text: Date of Application, 19th Feb., 1889
Complete Specification Left, 19th Nov., 1889-Accepted, 21st Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in or relating to Machinery for Paring the Heels of
Boots, Shoes, or the like.
We, Tом PEBERDY, WILLIAM EARP and THOMAS HERBERT PARR, of Farnham
Street Works, Leicester, Boot and shoe Engineers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to machinery for paring or trimming the heels of boots shoes
and the like.
Wo mount upon suitable framework a vertical standard or pillar adapted to receive
and allow of the working of a vertical plunger, carrying on its upper end a suitable
template or equivalent upon which the heel of the boot is placed.
The vertical plunger is caused to rise in the standard or pillar by means of an
eccentric operated by a treadle or equivalent mechanism and connected to the lower
end of the plunger by preferably an upright rod
The rising of the vertical plunger brings the heel of the boot into contact with a
plate on the lower end of a hinged arm depending vertically from the upper part of
the framework, thereby holding the heel firmly in position for the operation of paring
or trimming.
The paring mechanism consists of a suitably shaped knife fixed in a block or tool
holder mounted in the forked upper end of a vertical spindle and capable of adjustment
to any required angle.
The vertical spindle is connected to a horizontal shaft or equivalent carried in
bearings on a suitable bed plate, the inner or forward end of which moves on a centre
concentrically with the vertical pillar.
The outer end of the horizontal shaft carries preferably a weighted lever which in
conjunction with link plates keeps the tool holder or knife in contact with the heel
operated upon.
A suitably shaped guide plate or cam is provided which by means of a roller attached
to a lever at the bottom end of the vertical spindle serves to keep the knife at the
proper angle for cutting.
Dated this 19th day of February 1889.
W. P. THOMPSON & BOULT,
Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Machinery for Paring the Heels of
Boots, Shoes, or the like..
We, TOM PEBERDY, WILLIAM EARP, and THOMAS HERBERT PARR of Farnham
Street Works, Leicester, Engineers to the Boot and Shoe Trades, 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 paring or trimming the heels of boots &
shoes and will be understood by reference to the accompanying drawings in which
Fig. 1 is a perspective view of a heel paring machine constructed in accordance with
this invention. Figure 2 is a front elevation of the paring mechanism detached.
Fig. 3 is a central vertical section of part of Fig. 2, and Figures 4, 5, and 6 are detail
views hereinafter referred to.
The boot or shoe. to be operated upon is held firmly between the vertically
depending swing arm B and the template (1 on the upper end of the vertical
plunger and shown in position for paring in Fig. 1.

page_text: The swing arm B is pivotted at B' to the spindle B and may be moved outwardly
by hand to admit of the hoot or shoe being placed thereon and after being returned
to its vertical position again the template is brought up to its normal position and
clamps the heel against the lower end of the vertical swing arm B.
The lowering of the template C" is effected as follows. The said template C' is
mounted on the upper end of the vertical plunger C passing through the bed-plate A
and jointed at its lower end to a vertical rod (2 by a pin C³ the lower end of the said
rod being connected to a boss or socket D³ on the strap D² surrounding the
eccentric D on the horizontal shaft D, as shown most clearly in Figs. 5 and 6.
Fixed on the outer end of the shaft Dis a treadle E which when depressed by means
of the foot of the operator partially revolves the shaft D and causes the eccentric D₁ to
lower the rod (, plunger C, and template C¹. Immediately the foot of the operator
is removed from the treadle E the weighted arm E will effect the return of the tem-
plate C¹ to its former position and the heel will be held firmly between the template (¹
and swing arm B ready for being pared.
The rod C and plunger C, are jointed together at C³ to allow of a slightly lateral
movement of the lower part of the said rod when moving under the influence of the
eccentric D, and the rod C is preferably formed in two parts which are united by a
right and left handed screwed nut C, Fig. 1, which admits of the plunger being
adjusted in height to correspond with the position of the paring knife F.
In order to enable the machine to operate upon heels of various heights the arm B
is adjustable vertically by the slotted spindle 132, working on a feather and screw in
the part B operated by the hand wheel B.
The mechanism for paring consists of a knife F fixed to the block by screws Fi
carried in the frame or strap H. The position of the knife can be adjusted vertically
by means of a screw H2, the lower end of which is fixed in the block G, the upper end
entering the internally threaded thumb nut II' which on being turned raises or lowers
the block G carrying the paring knife as will be best understood by referring to
Fig. 3.
The frame or strap H carrying the block G is supported movably by screwed
centres in the forked upper end J' of the vertical spindle J (Figs. 2 and 3). As
shown most clearly in Fig. 1 the vertical spindle J passes through the sleeve K on
the plate K² and through the slot L' in the plate L and has on its lower end an
arm J on the terminating end of which a roller J³ or equivalent projection or stud
is carried.
The horizontal shaft K. is carried in bearings L L on the plate L, through one end
of which the plunger C passes, the said shaft K being connected by means of the
sleeve K to the plate K2 whose sides are formed at right angles to partly enclose the
plate Land admit of the horizontal movement of the former.
The bearing L³ is formed with a forked extension L in which is fulcrummed,
the lower end of the weighted lever M, the tongue M¹ of which, indicated by dotted
lines in Fig. 1, passes into a slot in the shaft K.
The paring mechanism can be kept out of contact with the heel by means of the
spring controlled caich lever N, fulcrummed at N', to the side of the plate L, one end
of the said lever N being hooked to engage with a pin or stud K³, or its equivalent,
on the movable plate K2 as shown in Fig. 1.
When the operation of paring is to be performed the spring controlled catch lever N
is disengaged from the pin or stud K³, and the weighted lever M, will descend and
move the shaft K and paring mechanism forward till the knife F is in contact with
the heel, and will hold it in that position during the process of paring. The paring
mechanism is also further controlled by means of the spring G.
The knife F being in contact with the heel the operator will cause the paring
mechanism to traverse round and pare the heel by means of the handle L. The
knife F is retained at a proper angle for cutting by means of the roller J³ moving
in contact with the edge O¹ of the fixed cam or guide plate O, Fig. 1.
The plates P and P¹ secured to the block by screws P², P³ are provided for
the purpose of being in contact with the part of the boot upper just above the

page_text: heel and the plate C¹ respectively, while the knife F is passing round the heel to
pare it.
The amount of leather removed from the heel of the boot by the paring knife F
varies according to the relation that the plate R bears to the cutting edge of the
former. This plate R is provided centrally on its opposite side with a screw R¹
passing through the block Ġ and into an internally threaded thumb nut S (Figs. 3
and 4) the turning of which will cause the plate R to move forward or backward,
and thereby alter its position in relation to the paring knife, the nut itself being
prevented from moving longitudinally by means of a plate S¹ secured to the block G,
and projecting into an annular groove S in the nut S.
The moving forward of the plate R will bring its face more nearly into the same
line or plane, as the knife F, and thereby decrease the amount of leather pared off
the heel; while moving the plate in the contrary direction will produce the opposite
result.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. As a means of operating the plunger of a heel paring machine the combina-
tion with said plunger of a rod eccentric D¹ shaft D treadle E and weighted
arm E substantially as described and illustrated in the accompanying drawings.
2. In a heel paring machine the combination with a vertical forked spindle such
as JJ carrying the paring mechanism of an arm J2 provided with a roller stud or
projection adapted to move in peripheral contact with a fixed cam or guide plate such
as for keeping the paring knife at a proper cutting angle substantially as described
and illustrated in the accompanying drawings.
3. In a heel paring machine the combination of a plate such as K² sleeve. K¹
vertical spindle shaft K weighted lever M and spring controlled catch lever N
substantially as and for the purpose described and illustrated in the accompanying
drawings.
4. In a heel paring machine the combination with the paring knife of a plate such
as R adjustable in relation thereto substantially as and for the purpose described and
illustrated in the accompanying drawings.
5. In a heel paring machine adjusting the paring knife F vertically substantially`
as described and illustrated in the accompanying drawings.
6. The improved machine constructed, combined and operating substantially in
the manner and for the purpose described and illustrated in the accompanying
drawings.
Dated this 18th day of November 1889.
TOM PEBERDY.
WILLIAM EARP.
THOS. H. PARR.
W. P. Thompson & Boult,
Agents for the Applicant.