the Manufacture of Boots and Shoes.
Year: 1888

page_text: the Manufacture of Boots and Shoes.
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 :-
My invention relates to a device for operating a reciprocating burnishing-tool
principally adapted for burnishing shoe soles.
Another object of my invention is to provide means for reciprocating the rubbing
edge of the tool in a direct horizontal plane.
Another object of my invention is to lessen the jar and noise occasioned by the
rapid reciprocation of the burnishing-tool, all of which I accomplish with the devices
shown in the accompanying drawings making a part of this specification, in which-
Fig. 1 is a perspective view of my invention applied to an ordinary supporting post.
Fig. 2 is a side elevation of the same. Fig. 3 is a diagram illustrating the movement
of one of the parts. Fig. 4 is a side elevation of the same showing the guides in
section. Fig. 5 is a central vertical section on line xx, Fig. 4, with the tension arin
in elevation.
1 represents the post of an ordinary supporting frame; 2, the bed plate of the
machine mounted thereon. 3 represents journal brackets rigidly secured to the table.
4 represents the driving pulley attached to the shaft journaling in said brackets.
5 represents a driving belt, which receives its motion from any ordinary transmitter.
I have shown two burnishing mechanisms and tools mounted on opposite sides of
the machine. They are both operated in the same manner. It is desirable to have
the burnishing-tools reciprocate in a direct horizontal plane. To accomplish this it is
necessary to convert rotary motion into a rectilineal reciprocating motion, and to
accomplish this, and to prevent jar owing to the change of motion, provide a

page_text: vibrating arm which accomplishes this movement. The parts are constructed as
follows: 6 represents a crank pin projecting out from the end of driving shaft.
7 represents a pitman journaling thereon. The wrist-pin 8 is journaled in front end
of said pitman. It also passes through a journal in the top end of arm 9, which has a
compound vibrating movement, which is produced by the pitman and spring tension
arm 10, one end of which is journaled on stud 11 to the table 2, and the other end
forms a journal support for the arm 9 by means of stud 12.
13 represents the spring tension screw, which taps up through bracket 14 and forms
a step support for the tension arm 10. The stud 12 is located contrally within the
gain or opening 15, formed in the arm 9, so as to have the support centrally within
the said arm.
The arm 9 passes through a guide or slot in the table. It is provided
with segmental guide-wings 16, formed on either side of the said arms which bears
against guides or ways 17 formed on the under side of the table. I prefer to make
the guides of anti-friction material inserted in recesses formed in the table, as shown
in section Fig. 4.
1.
18 represents the working edge or face of the burnishing tool, which moves in a
direct horizontal plane, the operation of which is as follows: The wings 16, being in
contact with the guides 17, depresses the arm 9 as it is moved by the wrist-pin. The
curve of the wings 16 is determined by a radius struck from point 18, which is the
face of the working tool, so that the point 18 is at all times on the line b, with the arm
in position shown in full lines in Fig. 3, or in the line cc or d d of the said figure,
the spring tension arm 10 being forced down as the wings 16 are rocked from the center
in either direction and as the guide moves in either direction from the center; hence
it is the yielding and retractile force of the arm 10 that gives the arm 9 its compound
and rectilineal motion and moves point 18 in a direct horizontal plane, (represented by
line b).
By proper adjustment of the screw 13 the tension arm can be adjusted so as to
yield to the movement of arm 9 and cushion or take up the shocks or jars due to the
change of motion.
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 :-
1. The combination, with the pitman 7 and its driving shaft, of the arm 9,
provided with the wings 16, and having a journal-support upon the spring tension-
arm 10, with a bearing on guides 17, substantially as specified.
2. The combination with the pitman 7 and its shaft, of the arm 9, provided with
wings 16 and having a journal-support upon the spring tension-arm 10, and the
burnishing-tool 18, supported on and carried by arm 9, substantially as specified.
3. The combination, with the pitman 7 and its driving mechanism, of the
reciprocoting arm 9, driven by said pitman, provided with segmental wings 16 and
supported on the adjustable spring tension-arin 10, substantially as specified.
Dated this 24th day of February 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.