Improvements in Edge-burnishers for Use in the Manufacture of Boots and Shoes.
Year: 1895

page_text: Date of Application, 2nd Apr., 1895-Accepted, 4th May, 1895
COMPLETE SPECIFICATION.
Improvements in Edge-burnishers for Use in the Manufacture of
Boots and Shoes.
I, AMBROSE STEVENS VOSE, of No. 3 Lewis Street, East Boston, in
the County of Suffolk, State of Massachusetts, United States of America,
Photographer, 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 :-
"..
My invention relates especially to a tool for burnishing or finishing the edges of
boots and shoes, its object being particularly to provide a tool easily adjustable to
the different thicknesses of shoe-soles and overcome the objections now incident to
the use of a separate tool for each thickness of sole.
In the accompanying drawing
Figure 1 is a side elevation,
Figure 2 an edge elevation looking from the left in Figure 1, and
Figure 3 a vertical transverse section of my improved edge-burnisher.
Figure 4 is a sectional view illustrating a modification,
Figure 5 is a side elevation, and
Figure 6 a vertical transverse section, showing another modified form of my
improved burnisher.
Figures 7 and 8 are sectional views illustrating further modifications.
Like letters and figures of reference indicate corresponding parts in the different
figures of the drawing.
The nature and operation of the improvement will be readily understood by all
conversant with such matters from the following explanation.
In the drawing, A represents the shank of the tool, which may be fitted to a
handle for hand use, or may be socketted to receive the rod or spindle of a burnishing
machine.
A head B is formed integrally with the shank, and a kerf d is cut vertically and
centrally through the said head. An undercut or dove-tail groove f traverses
the top of the head horizontally in the line of said kerf. A screw 9 having a
smooth shank is turned transversely through the head across the kerf, one end of
the said screw taking in one side of the head only, so that the halves of the said
head may be sprung together thereby.
The working face of the tool is formed in two blocks h, j, which are dove-tailed
at k to slide in the said groove and are held by the binding screw g. The said
working face is terraced and cut on an arc in the usual manner. These members h, j,
are held together by a screw p which has a long smooth shank as shown in
Figure 3, and which is threaded to turn into the member h. The said member his
chambered horizontally on its inner face and a spring r is disposed in the said
chamber around the screw p, the said spring acting expansively and tending to
force the members h, j apart when the screw p is loosened. That portion of the
working face of the iron which is formed on the member j is fitted to overlap the
member has at t.
In Figure 4 a form is shown wherein the spring r is done away with, the screw p
having, near its head, an annular groove v in which a pin w engages, so that, when
the screw is turned out, the members h, j may be separated accordingly.
In the use of the tool the working face m, when the parts are in normal position,
is fitted for a thin sole.
When it is necessary to employ the tool on thicker soles,

page_text: the screw g is turned outwardly, slightly relieving the dove-tail k; the screw pis
then turned out until the spring spreads the members h, j sufficiently to admit the
sole into the working face m when the screw g is again turned in, cramping the
walls of the head and binding the members h,j in this assumed position. The
form shown in Figures 5 and 6 represents the part designated as the member h
formed integrally with the shank and head, a portion of the working face being
formed thereon. This head is rabbeted at a and a member y is fitted to this rabbet
and is grooved to form the overlapping part of the working face at t.
Two screws p having smooth shanks pass through the head and have their points
threaded to enter suitable openings in the member or plate y. A set or push
screw is threaded into the head and abuts against the plate y centrally. By
turning out the screws p and turning in the screw q, the plate or member y may be
adjusted to regulate the width of the working face.
In Figures 7 and 8 still another form of adjustment is shown. The head and
shank are formed integrally, the head is rabbeted at 20 and a plate 21 is entered
into said rabbet and forms part of the working face as before. The outer walls of
the head and this plate flare slightly upward. The head and the plate or
member 21 are connected by screws p threaded sufficiently to turn into said head,
but having smooth shanks playing loosely in the plate 21. The said plate and
head around the screws are chambered, and coiled push-springs are inserted
in the said chambers for spreading the parts.
A sliding sleeve 25 works on the shank and is fitted to embrace the flaring head
and plate, so that, when pushed upward, it will bind these parts together.
In Figure 8, instead of a sleeve, a nut 26 is employed, this nut being turned onto
the shank which is threaded for this purpose at 27.
I do not confine myself to any of the methods shown for spreading the members
formed in the working face of the tool, the salient feature of my invention being
the construction of a burnishing tool with its working face divided into sections or
members, and devices for adjusting the said members laterally relatively to each
other, whereby the breadth of the working face of the said tool may be regulated.
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-
1st. An edge-burnishing tool having its working face divided into two members
adjustable relatively to each other, substantially as and for the purpose set forth.
2nd. An edge-burnishing tool having its working face divided longitudinally
into two members and provided with means for adjusting the said members
relatively to each other whereby the width of the working face may be regulated.
3rd. An edge-burnishing tool having its working face divided into two spring-
separated members and devices for holding the said members against the spring
pressure.
4th. An edge-burnishing tool having its working face divided into two members,
a screw connecting the said members, the said screw having a smooth shank upon
which one member may slide, and devices for separating the said members to the
limit permitted by the said screw.
5th. An edge-burnishing tool having its working face divided into two members
which are adjustably mounted in a shank-bearing head, the said head being kerfed,
and a screw for compressing the walls of the kerf to bind the said members in the
head.
6th. In an edge-burnishing tool, a kerfed head having an undercut groove, in
combination with two blocks, upon each of which a portion of the working face of
the tool is formed and which are fitted to enter the said groove, devices for
connecting and automatically spreading the said blocks, and means for cramping
the kerf walls and binding the said blocks in the said groove.
7th. In an edge-burnishing tool, the head B provided with the kerf d and
groove f, in combination with the spring-separated blocks h, j fitted to enter the

page_text: said groove, the said blocks being cut to conjointly form the working face of the
said tool, the smooth shank screw p connecting the said blocks, and the screw g in
the said head traversing the said kerf, substantially as and for the purpose set
forth.
°
8th. The modification of my edge-burnishing tool substantially as described with
reference to Figure 4 or to Figures 5 and 6, or to Figure 7, or to Figure 8 of the
drawing.
ocal 1100K
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.