CERTAIN IMPROVEMENTS IN MACHINERY FOR BURNISHING THE HEELS OF BOOTS AND SHOES
Year: 1871

page_text: LETTERS PATENT to Vivian Kimball Spear, of Lynn, in the County of
Essex, and State of Massachusetts, United States of America, for the
Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR BURNISHING THE
HEELS OF BOOTS AND SHOES."
Sealed the 5th May 1871, and dated the 21st March 1871.
COMPLETE SPECIFICATION filed by the said Vivian Kimball Spear at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 21st March 1871, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, VIVIAN
KIMBALL SPEAR, of Lynn, in the County of Essex, and State of Massa-
chusetts, United States of America, send greeting.
WHEREAS I am in possession of an Invention of "CERTAIN IMPROVE-
MENTS IN MACHINERY FOR BURNISHING THE HEELS OF BOOTS AND SHOES," and
have petitioned Her Majesty to grant unto me, my executors, adminis-

page_text: trators, and assigns, Her Royal Letters Patent for the same, and have
made solemn declaration that I am the true and first Inventor of said
Invention.
NOW KNOW YE, that I, the said Vivian Kimball Spear, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the said Invention, and
in what manner the same is to be performed, in and by the following
statement taken in connection with the accompanying Drawings, in
which Figure 1 is a plan, Figure 2 a side elevation, Figure 3 a rear end
clevation, and Figure 4 a vertical and longitudinal section of a machine
embodying my Invention, Figure 5 a front view of the jack, so called,
which will be duly explained.
This Invention relates not only to the introduction bodily with heel
burnishing machines of one or more devices for effecting purposes not
heretofore accomplished in such mechanism, but to improvements in
details already in existence.
1. I have in the Invention herein to be explained combined as an
organized combination, first, devices for clamping and firmly supporting
a boot or shoe, and presenting the heel thereof to the burnishing tool,
this element of the combination being termed a "jack," and consisting
of an upright vibrating rod guided by suitable ways, stepped at bottom
upon a proper pivot, and carrying upon one arm of its forked top an
adjustable clamp or sliding arbor for confining the heel of a boot between
itself and the opposite arm of such fork, the traverse movements of
the arbor within its bearings being effected by a circular wedge in
combination with a spring, as herein-after explained, the whole being
designed to economize the time and reduce the labor inevitable in the
use of machines heretofore in use.
2. And, secondly, as a member of this combination I have adopted
a travelling "edge guard," so called, which follows the motion of the
burnishing tool as it travels about the circumference of a heel, the pur-
pose of this guard being to protect the extreme edge of the tread of
the heel against the action of the burnishing tool, which heretofore in
machines of like character has had the effect of turning over a lip or
burr upon such tread, the result of which is to injure the appearance
of the work and increase the labor upon the same.

page_text: 3. A third element which enters into this combination is the general
arrangement and method of support of the burnishing tool, and consists
not only in pivoting the rear end of the carrier of such tool (to the base
or frame which upholds it) in such manner that this carrier may vibrate
upon its pivot, and acquire by this means grcat freedom of motion to
accommodate itself to the variable curve or outline of the circumference
of the heel, but as well in swivelling the burnishing tool in its turn to
the carrier, in order that such tool may adapt itself with equal pressure
to the entire width of the edge of the heel with peculiarities and
advantages herein-after referred to.
4. The fourth element in the organization of this machine consists in
the mechanical devices whereby I obtain such a variable or yielding
motion of the burnishing tool in the arc. of a circle as not only to enable
it to travel at one uninterrupted and even movement entirely about
the curved portion of the circumference of the heel, but to adapt itself
to any irregular or eccentric curve which the outline of the heel may
describe, whereby I successfully accomplish much more beneficial results
in a machine in which the heel is held fast and the tool travels about
it than in any heretofore known to the art, and to this end this fourthi
portion of my Invention consists in attaching to the extreme rear end
of the spindle which carries the burnishing tool a pinion which meshes
into a segmental rack making part of an upright sectional plate, this
latter plate being pivoted at its bottom to the main standard or column
of the machine, and operated by a crank and pitman in manner as
herein-after stated, the vibrations of the segmental rack imparting semi-
revolutions to the burnishing tool about the heel, with results presently
to be understood.
5. I have introduced as a fifth component part of this combination a
means of imparting continuous heat to the burnishing tool, in order
to enhance the polish imparted by it to the heel, this portion of the
Invention consisting in the employment of a gas pipe which is applied
to the tool carrier, and terminates within the cavity of the tool, the pipe
being conducted from a suitable quarter whence the proper supply of
gas is obtained to maintain the requisite heat.
Sixth, and lastly, these improvements consist in applying in a peculiar
manner to the heel receiving arm of the furcated standard or jack of the
machine, an adjustable form or pattern plate whereby the edge of the

page_text: heel is preserved intact from the crushing or spreading action of the
burnishing tool, which but for it or its equivalent would result in great
injury to said heel.
In the Drawings herein-before alluded to as illustrative of my Invention.
A, represents the main support or standard of the machine, and which
consists of a cylindrical tapering column with a broad substantial
foundation and surmounted by a cap consisting of a base or bed plate. B,
and two end standards or uprights C, C¹, the plate B, and uprights C, C¹,
being substantially after the form of the head stock of a lathe, the
similitude being further carried out by the addition thereto of an arbor
or spindle, as shown at D, and which carries the burnishing tool carrier
to be herein-after alluded to.
1. In carrying out the first portion of these improvements in the classi-
fied order above premised, I apply to the front side of the column A, an
upright vibratory rod or staff E, the upper part of which is furcated and
divided into diverging arms or branches F, G, while its extreme lower
end is stepped within a sleeve H into the lower end of which a feed
screw I is screwed in order to vary the relative height of the "jack” so
called, which the standard with its fork produces, the sleeve H being
pivoted to the lower part of the column A in such manner as to freely
vibrate or oscillate upon its bearings, while the upper part of the rod E
as well as the inner arm F is guided within ways or guides J and K,
extending laterally from the column, the termination of the former con-
stituting a stop or boundary to the extreme outer vibration of the "jack."
The branch or arm G of the jack may be said to resemble the "tail
stock" of a lathe, inasmuch as it carries at top a horizontal tubular
head L, within which plays a cylindrical spindle or rod M, such spindle
being forced to and fro within its bearing by a curved or segmental
wedge N, which enters a slot O cut through the spindle immediately
in rear of its bearing or head L, the base of such wedge being pivoted
to the arm G at one side of, and below the head L, and provided
with a handle P for partially rotating it about its pivot. A coiled
spring R encircles the spindle M, and is situated between its outer
end or knob S, and the bearing L, and serves by its expansion to
force the spindle outward as fast as relcased by the withdrawal of the
wedge N. The purpose of the spindle M is to clamp the heel of a boot
or shoe firmly between it and the upper part of the arm F, as shown

page_text: in Figure 4, the wedge N serving when advanced or turned in the
right direction upon its pivot to drive the spindle with great power
toward the heel supporting abutment or arm F, which is to be of a form
to correspond to that of the tread of the heel, but slightly less in cir-
cumference. The jack thus constructed and carrying a boot or shoe as
represented in said Figure 4 is presented to the action of the burnishing
tool as herein-after explained and constitutes the first part of these
improvements.
"
2. In order to prevent the bearing down or spreading action of the bur-
nishing tool upon the outer edge or boundary of the heel, and thus carry
into effect the second portion of these improvements, I adopt what I
term an "edge-guard or protector, which consists of a rod T inserted
within the bore of the arbor D herein-before mentioned, such rod being
advanced by a spring of suitable nature placed within the bore of the
spindle and carrying at its front extremity a short arm a which is pivoted
to it and extends longitudinally from it, the outer end of this arm being
preferably bent into the form of a hanging lip b, which bears against the
extreme edge of the heel, and which travelling immediately below and
in company with the burnishing tool serves to keep the edge of the heel
up to such tool, and entirely prevent the formation of a "burr upon
the tread of the heel the removal of which otherwise is a matter of some
trouble. In fact, this burr cannot be removed without defacing the
edge of the heel, hence, the edge guard is an object of considerable
value in machines of this character, and constitutes the second feature in
these improvements.
""
3. To carry out the third portion in order of these improvements, I
mount upon the upper part of the arbor D, before named, a horizontal
bar or carrier c, the rear end of which is pivoted to a dog d clamped to
the rear end of the arbor, the said carrier extending forward over the
heel rest or abutment e, and terminating thereat, a plate spring f being.
applied to the upper surface of the carrier, for the purpose of depressing
it toward the heel rest or a heel when applied thereto, the extent of this
depression of the carrier being determined by an adjustable stop. or pin.g,.
which is screwed into the under side thereof, and bears upon the arbor D
at such times as the jack may be turned away from the heel rest or is
not supplied with a heel.
In machines herein-before constructed the carrier or a substitute therefor
has been a rigid bar to which a short and rapid intermittent movement.

page_text: has been imparted and the heel of the boot moved about beneath it to
receive the desired polish. In this my machine, however, the burnishing
tool to be herein-after explained travels by the functions of the machine
entirely about the curved portion of the heel at one single movement in
one direction, and at a correspondingly slow rate of speed, although in
machines of carlier date a rapid intermittent movement of the burnishing
tool was considered necessary. I have found, however, by long con-
tinued experiments that a slow motion with great pressure and with a
continuous sweep entirely about the curved edge of the heel has
decidedly the best effect thereupon. By pivoting the carrier cas
described it is enabled to describe a curve tangential to or eccentric with
the arc of a circle which its revolution with the arbor would otherwise
compel it to do, and I am thus able to follow the convex form of. the
heel, no matter what curve it may possess.
The burnishing tool is represented in the accompanying Drawings
at has a metallic block pivoted at its rear end to the front end of the
carrier c, a plate spring i being secured at the top of such carrier and by
pressing upon the tool serving to depress the latter toward or upon a
heel when such is presented to it, as shown in Figure 4. As the purpose of
pivoting the carrier c to the arbor is to accommodate it to the curved
longitudinal outline or circumference of the heel as it travels about the
latter, so the purpose of pivoting the burnishing tool to its carrier is to
enable it to adapt itself to the transverse curve or concavity of the heel
as well as for a more important purpose, which is that its pressure upon
the upper or inner edge of the heel may be lessened as were the rigidity
of the carrier prolonged to its extremity the force exerted by it upon the
heel would tear away or separate the "lifts of the latter. In my
system the greatest pressure is exerted upon the outer portion of the
heel, and is so directed as to bear inward toward the boot, which tends
rather to solidify or condense the heel than to separate its lifts. In this
manner I obtain very desirable results, and complete the third clause of
my present improvements.
,,
4. To carry into practice the fourth feature of these improvements I
mount upon the extreme outer end of the arbor D or such portion
thereof as protrudes rearward beyond the standard c¹ a toothed pinion k,
while below this pinion I dispose a sectional arm or plate 7 carrying at
top a segmental rack m, into which the pinion / meshes, and from which
such pinion derives motion, the sector being pivoted upon a horizontal

page_text: "
stud n projecting from the rear side of the column A, and near the upper
part thereof. The sector is prolonged below its pivot into an obliquely
disposed arm p to the lower extremity of which the upper end of a
pitman r is swivelled, the lower end of such pitman in turn being pivoted
to the wrist pin 8 of a crank or crank wheel t, which is mounted upon
and revolves with a horizontal driving shaft u duly supported in proper
boxes or standards wo and x, erected upon or making part of a bracket or
extension Y, which springs from the rear side of the column A and
about the middle of its height, the arbor D, post n, driving shaft u, and
"jack spindle M being, practically in the same vertical plane and
alignment and with the axis of the said column A, the shaft u being
provided with fast and loose pulleys a¹, b', in the ordinary manner.
A continuous rotary motion of the driving shaft of the machine in cither
direction imparts through the agency of the crank wheel t, pitman »,
sectoral rack m, and pinion & reciprocating sweeps of the burnishing
tool and its carrier c in a semicircular or eccentric path about the heel
rest e, and it is the peculiar motion, thus obtained in combination with
the mechanical devices I have just described for producing it that con-
stitutes the fourth portion of my Invention, and enables me to avoid the
undulating or wavy surface which the short quick intermittent move-
ment of the burnishing tool in a limited space formerly impressed upon
the heel.
5. In order that I may carry out the fifth portion of these improvements
and in so doing impart a certain and continuous degree of heat to the
burnishing tool h, I convey from a suitable locality through the rear
part of the bore of the arbor D a gas pipe c³, such pipe rising behind the
dog d, and being carried alongside or over the carrier c and into the
cavity d of the burnishing tool, where it terminates in a suitable jet.
Gas being suffered to flow from a suitable source into the pipe c¹ and
inflamed at its jet imparts such a degree of temperature to the burnishing
tool as to greatly increase the polish and hard surface deposited upon
the heel, the employment of gas for the purpose ensuring an uninterrupted
supply of heat.
6. Sixthly and lastly, I complete these improvements by applying in
a ready and peculiar manner the movable form or pattern guide which
supports the tread of the heel, it being understood that one such guide is
required for each size of boot or shoe which may be subjected to the
action of the machine. This pattern guide or plate is shown at fas a

page_text: thin plate of a form corresponding to the tread of a heel, and as provided
on its back with a dovetailed spline g to enter a correspondingly shaped
groove cut in the front face of the abutment or heel rest e, a shelf i¹
projecting outwardly from such abutment, which serves as a stop to
ensure the correct position of the plate f¹, and to serve a like office for
the heel of the boot. The case and certainty with which the various
forms may be applied to or removed from the abutment e convert this
apparently insignificant detail into a point of considerable value in the
operation of the machine, and constitutes the sixth and last portion of
these improvements.
The operation of the machine is described in brief as follows :-
Supposing as a starting point the "jack "to be at its extreme outward
position and ready to receive a boot or shoe, the curved wedge N
lowered, and the spindle M by the action of the spring R also retracted
to its greatest extent. A boot or shoc, as the case may be, is presented
to the jack in such manner that the tread of its heel abuts against and is
supported by the rest c or the pattern plate f¹ thereof, and with its
toe hanging directly downward, as shown in dotted lines in Figure 2.
The workman now elevates the handle of the wedge N, and by advancing
such wedge drives the spindle forward and against the heel, thus
clamping the latter firmly between such spindle and the rest e. Con-
tinuing the operation the workman now advances the jack until the heel
carried by it has reached its proper position beneath the burnishing
tool n, the jack and heel being firmly held up to this position by the
workman. The belt shipper is now seized and moved in the right
direction and the driving shaft put in rotation, which, by means and in
manner heretofore stated, compels the burnishing tool to travel or sweep
around the entire curved portion of the edge of the heel and impart
thereto a brilliant polish, the edge guard travelling with such tool about
the edge or boundary of the tread of the heel, and serving, as before
stated, to prevent the said tool from turning over a burr upon such edge.
The motion of the driving shaft is continued until the sweep of the
burnishing tool has been described one or more times, according to
the character of the work or other circumstances; when it is stopped the
“jack" is retracted, the spindle (by the lower handle of the curved wedge)
also withdrawn, and the boot or shoc, with its finished heel, removed

page_text: CLAIM.
I claim the above described machine for burnishing the heels of boots
5 and shoes in principle or as a whole, or any details or modifications of
the same.
I claim the above described machine for burnishing the heels of boots
5 and shoes in principle or as a whole, or any details or modifications of
the same.
VIVIAN KIMBALL SPEAR. (L.S.)

page_text: 15
In the Matter of Letters Patent granted to VIVIAN KIMBALL SPEAR, of Lynn, in
the County of Essex, and State of Massachusetts, United States of America,
for the Invention of CERTAIN IMPROVEMENTS IN MACHINERY FOR BURNISH-
ING THE HEELS OF BOOTS AND SHOES," dated the 21st. March, A.D. 1871,
No. 762, which Letters Patent and all right, title, and interest therein are
now vested in the Blake and Goodyear Boot and Shoe Machinery Company
(Limited), of 1, Worship Street, Finsbury, in the City of London.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed to be
entered by the said Company.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters Patent,
bearing date the 21st day of March, in the year of our Lord One thousand eight
hundred and seventy-one, did for herself, her heirs, and successors, give and grant
unto the said Vivian Kimball Spear, his executors, administrators, and assigns, the
sole privilege of making, using, exercising, and vending within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and the Isle of Man, the said
Invention for "CERTAIN IMPROVEMENTS IN MACHINERY FOR BURNISHING THE
HEELS OF BOOTS AND SHOES," for and during the term of fourteen years thence
next ensuing:
And whereas by an assignment dated the 18th December, 1874, and registered in
the Great Seal Patent Office aforesaid 1st March, 1875, the said Letters Patent and
all right, title, and interest therein became vested in the Company under the then
name of the Blake Sole Sewing Machine Company (Limited), which name was
afterwards duly changed to the present name of the Company :
And whereas since the said assignment was made the said Company has been
advised that certain portions of the description in the said Specification may be
objected to on the ground of their ambiguity, and that these portions of the descrip-
tion and the claiming clause in the said Specification might be construed as
claiming more than was or is intended to be claimed under the said Letters Patent:
NOW KNOW YE therefore, that we the said Blake and Goodyear Boot and
Shoe Machinery Company, Limited, by and with the leave of Her Majesty's

page_text: Solicitor General, do alter and amend the said Specification as follows, that is to
Say:
Referring to the Queen's Printer's copy of the said Specification on page 2 and
in line 13 we strike out the words "not only," and the words 'the introduction
bodily with"; and in lines 14 and 15 we strike out the words of one or more
devices for effecting purposes not heretofore accomplished in such mechanism, but
to"; we also strike out of line 15 the word "in," and the whole of the following
line 16; and we insert in line 15 the words "and comprises the following"; and
we strike out the whole of the matter following line 16 to the end of the same
page. We strike out the whole of the matter on page 3, and the 1st, 2nd, and 3rd
lines of page 4.
And we strike out of lines 13 and 14 of the last-named page the
words "in the classified order above premised; and, finally, on page 9 we strike
out the 3rd, 4th, 5th, and 6th lines constituting the claiming clause.
And in order that the effect of the said Disclaimer and Memorandum of Altera-
tion may be fully understood, we annex a copy of the Specification as it will appear
when such Disclaimer and Memorandum of Alteration have been made, omitting
the introductory clause thereof.
"
" NOW KNOW YE that I, the said Vivian Kimball Spear, do hereby declare
"that the following Complete Specification under my hand and seal fully describes
and ascertains the nature of the said Invention and in what manner the same is
" to be performed in and by the following statement, taken in connection with the
accompanying Drawings, in which Figure 1 is a plan; Figure 2, a side elevation;
Figure 3, a rear end elevation; and Figure 4, a vertical and longitudinal section
"of a machine embodying my Invention; Figure 5, a front view of the jack, so
called, which will be duly explained.
"
"
"
"This Invention relates to heel burnishing machines, and comprises the following
"improvements:—
"
"In the Drawings herein-before alluded to as illustrative of my Invention,
"A represents the main support or standard of the machine, and which consists of
a cylindrical tapering column with a broad substantial foundation, and sur-
"mounted by a cap consisting of a base or bed plate B, and two end standards or
uprights C, C, the plate B and uprights C, C, being substantially after the form
" of the head stock of a lathe, the similitude being further carried out by the addition
"thereto of an arbor or spindle, as shown at D, and which carries the burnishing
"tool carrier to be herein-after alluded to.
*
"
1. "In carrying out the first portion of these improvements I apply to the front
"side of the column A. an upright vibratory rod or staff E, the upper part of which
" is furcated and divided into diverging arms or branches F, G, while its extreme
"lower end is stepped within a sleeve H, into the lower end of which a feed screw
". I is screwed in order to vary the relative height of the "jack" so called which
"the standard with its fork produces, the sleeve H being pivoted to the lower part
" of the column A in such manner as to freely vibrate or oscillate upon its bearings,
"while the upper part of the rod E as well as the inner arm F is guided within
ways or guides J and K extending laterally from the column, the termination of
"the former constituting a stop or boundary to the extremne outer vibration of the
"jack." The branch or arm G of the jack may be said to resemble the "tail
"stock" of a lathe, inasmuch as it carries at top a horizontal tubular head L within
"which plays a cylindrical spindle or rod M, such spindle being forced to and fro
"within its bearing by a curved or segmental wedge N which enters a slot O cut
through the spindle immediately in rear of its bearing or head L, the base of such
"wedge being pivoted to the arm G at one side of and below the head L and pro-
"vided with a handle P for partially rotating it about its pivot. A coiled spring R
." encircles the spindle M and is situated between its outer end or knob S and the
bearing L, and serves by its expansion to force the spindle outward as fast as
"released by the withdrawal of the wedge N. The purpose of the spindle M is to
clamp the heel of a boot or shoe firmly between it and the upper part of the arm
"Fas shown in Figure 4, the wedge N serving when advanced or turned in the right
"
$8
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page_text: "direction upon its pivot to drive the spindle with great power toward the heel
supporting abutment or arm F, which is to be of a form to correspond to that of
"the tread of the heel but slightly less in circumference. The jack thus con-
"structed and carrying a boot or shoe as represented in said Figure.4 is presented
" to the action of the burnishing tool as herein-after explained, and constitutes the
"first part of these improvements.
<<
2. "In order to prevent the bearing down or spreading action of the burnishing
"tool upon the outer edge or boundary of the heel and thus carry into effect the
"second portion of these improvements. I adopt what I term an
" edge-guard" or
protector, which consists of a rod T inserted within the bore of the arbor D herein-.
"before mentioned, such rod being advanced by a spring of suitable nature placed
"within the bore of the spindle and carrying at its front extremity a short arm a
"which is pivoted to it and extends longitudinally from it, the outer end of this
"arm being preferably bent into the form of a hanging lip b which bears against
"the extreme edge of the heel, and which travelling immediately below and in
"company with the burnishing tool serves to keep the edge of the heel up to such
"tool and entirely prevent the formation of a "burr" upon the tread of the heel,
the removal of which otherwise is a matter of some trouble. In fact this burr
"cannot be removed without defacing the edge of the heel, hence the edge-guard is
an object of considerable value in machines of this character and constitutes the
"second feature in these improvements.
"
"
"
3. "To carry out the third portion in order of these improvements, I mount upon
"the upper part of the arbor D before named, a horizontal bar or carrier c, the rear
"end of which is pivoted to a dog d clamped to the rear end of the arbor, the said
"carrier extending forward over the heel rest or abutment e, and terminating
thereat, a plate spring f being applied to the upper surface of the carrier for the
purpose of depressing it toward the heel rest, or a heel when applied thereto, the
"extent of this depression of the carrier being determined by an adjustable stop or
pin g, which is screwed into the under side thereof, and bears upon the arbor D
"at such times as the jack may be turned away from the heel rest, or is not
supplied with a heel.
"
<
"
<<
<<
"
[[
In machines herein-before constructed, the carrier or a substitute therefor has
"been a rigid bar to which a short and rapid intermittent movement has been
"imparted, and the heel of the boot moved about beneath it to receive the desired
"polish. In this my machine, however, the burnishing tool to be herein-after
explained travels by the functions of the machine entirely about the curved
portion of the heel at one single movement in one direction, and at a correspond-
ingly slow rate of speed, although in machines of earlier date a rapid intermittent
"movement of the burnishing tool was considered necessary. I have found, how-.
ever, by long continued experiments that a slow motion with great pressure and
"with a continuous sweep entirely about the curved edge of the heel has decidedly
"the best effect thereupon. By pivotting the carrier c as described, it is enabled to
"describe a curve tangential to or eccentric with the arc of a circle, which its
"revolution with the arbor would otherwise compel it to do; and I am thus able
to follow the convex form of the heel, no matter what curve it may possess.
"The burnishing tool is represented in the accompanying Drawings at h, as a
"metallic block pivotted at its rear end to the front end of the carrier c, a plate
spring i being secured at the top of such carrier, and by pressing upon the tool
serving to depress the latter toward or upon a heel when such is presented to it,
as shown in Figure 4. As the purpose of pivoting the carrier c to the arbor is to
"accomodate it to the curved longitudinal outline or circumference of the heel as.
"it travels about the latter, so the purpose of pivoting the burnishing tool to its.
"carrier is to enable it to adapt itself to the transverse curve or concavity of the
"heel as well as for a more important purpose, which is that its pressure upon the
upper or inner edge of the heel may be lessened, as were the rigidity of the carrier
prolonged to its extremity, the force exerted by it upon the heel would tear away
or separate the "lifts" of the latter. In my system the greatest pressure is.
CC
<<
<C
te
<<

page_text: " exerted upon the outer portion of the heel, and is so directed as to bear inward
"toward the boot, which tends rather to solidify or condense the heel than to
"separate its lifts. In this manner I obtain very desirable results, and complete
"the third clause of my present improvements.
$6
cr
cc
<<
4. "To carry into practice the fourth feature of these improvements, I mount
upon the extreme outer end of the arbor D, or such portion thereof as protrudes
"rearward beyond the standard c¹, a toothed pinion , while below this pinion I
dispose a sectional arm or plate l, carrying at top a segmental rack m into
"which the pinion k meshes, and from which such pinion derives .motion, the
"sector being pivoted upon a horizontal stud n projecting from the rear side of
"the column A and near the upper part thereof. The sector is prolonged below
"its pivot into an obliquely disposed arm p, to the lower extremity of which the
" upper
end of a pitman is swiveled, the lower end of such pitman in turn being.
pivoted to the wrist pins of a crank or crank wheel t which is mounted upon
"and revolves with a horizontal driving shaft u duly supported in proper boxes
or standards and x, erected upon or making part of a bracket or extension y
"which springs from the rear side of the column A, and about the middle of its height
"the arbor D, post n, driving shaft u, and "jack spindle "M being practically in
"the same vertical plane and alignment and with the axis of the said column A,
"the shaft u being provided with fast and loose pulleys a¹, b', in the ordinary
<< manner. A continuous rotary motion of the driving shaft of the machine in
either direction imparts through the agency of the crank wheel t, pitman r,
"sectoral rack m, and pinion, reciprocating sweeps of the burnishing tool / and
"its carrier c in a semicircular or excentric path about the heel rest e; and it is the
peculiar motion thus obtained, in combination with the mechanical devices I
have just described for producing it, that constitutes the fourth portion of my
Invention, and enables me to avoid the undulating or wavy surface which the
short quick intermittent movement of the burnishing tool in a limited space
formerly impressed upon the heel.
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5. In order that I may carry out the fifth portion of these improvements, and
"in so doing impart a certain and continuous degree of heat to the burnishing
"tool, I convey from a suitable locality through the rear part of the bore of the
"arbor Da gas pipe c¹, such pipe rising behind the dog d and being carried along-
side or over the carrier,c and. into the cavity d¹ of the burnishing tool, where it
"terminates in a suitable jet. Gas being suffered to flow from a suitable source
into the pipe c¹, and inflamed at its jet imparts such a degree of temperature to
the burnishing tool has to greatly increase the polish and hard surface deposited
upon the heel, the employment of gas for the purpose ensuring an uninterrupted
supply of heat.
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6. Sixthly and lastly I complete these improvements by applying in a ready
"and peculiar manner the moveable form or pattern guide which supports the tread
"of the heel, it being understood that one such guide is required for each size of
"boot or shoe which may be subjected to the action of the machine. This pattern
guide or plate is shown at f' as a thin plate of a form corresponding to the tread
"of a heel, and as provided on its back with a dove-tailed spline g to enter a
correspondingly shaped groove h¹ cut in the front face of the abutment or heel
rest e; a shelf projecting outwardly from such abutment, which serves as a
"stop to ensure the correct position of the plate f¹, and to serve a like office for
"the heel of the boot. The ease and certainty with which the various forms may
"be applied to or removed from the abutment e convert this apparently insigni-
"ficant detail into a point of considerable value in the operation of the machine,
" and constitutes the sixth and last portion of these improvements.
"

page_text: "receive a boot or shoe, the curved wedge N lowered, and the spindle M by the
"action of the spring R also retracted to its greatest extent. A boot or shoe, as the
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case may be, is presented to the jack in such manner that the tread of its heel
"abuts against and is supported by the rest e or the pattern plate f¹ thereof, and
"with its toe hanging directly downward, as shown in dotted lines in Figure 2.
"The workınan now elevates the handle of the wedge N, and by advancing such
"wedge drives the spindle forward and against the heel, thus clamping the latter
firmly between such spindle and the rest e. Continuing the operation, the work-
man now advances the jack until the heel carried by it has reached its proper
position beneath the burnishing tool, the jack and heel being firmly held up to
"this position by the workman. The belt shipper is now seized and moved in the
right direction and the driving shaft put in rotation, which by means and in
manner heretofore stated compels the burnishing tool to travel or sweep around
"the entire curved portion of the edge of the heel, and impart thereto a brilliant
polish, the edge guard travelling with such tool about the edge or boundary of the
"tread of the heel, and serving as before stated to prevent the said tool from
turning over a burr upon such edge. The motion of the driving shaft is con-
"tinued until the sweep of the burnishing tool has been described one or more
times, according to the character of the work or other circumstances; when it is
stopped the "jack" is retracted, the spindle (by the lower handle of the curved
wedge) also withdrawn, and the boot or shoe with its finished heel removed from
"the machine. The whole operation is effected very expeditiously, and the heel
finished to perfection."
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"5
In witness whereof, we Ebenezer Pocock and Charles Frederick Gardner,
Directors of the Blake and Goodyear Boot and Shoe Machinery Company,
(Limited), have on behalf of said Company set our hands and seals, and
caused the seal of said Company to be hereunto affixed.
I hereby grant my fiat giving leave to the above-named Ebenezer Pocock
and Charles Frederick Gardner, on behalf of the Blake and Goodyear Boot and
Shoe Machinery Company (Limited), the Assignees of the said Patent to file in
the Great Seal Patent Office, with the Specification to which the same relates, the
above-written Disclaimer and Memorandum of Alteration.
HARDINGE S. Giffard,
Solicitor General.