Improvements in Cutters for Trimming the Soles of Boots and Shoes.
Year: 1895

page_text: Date of Application, 23rd July, 1895
Complete Specification Left, 23rd Apr., 1896-Accepted, 23rd May, 1896
PROVISIONAL SPECIFICATION.
Improvements in Cutters for Trimming the Soles of Boots and
Shoes.
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford,
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to improve the construction of rotary cutters
which are employed for trimming the edges of the soles of boots and shoes and
consists in forming the cutters in two parts which can be adjusted relatively to
each other upon the spindle which carries them so as to increase or diminish
the width of the cutter to suit the variations in thickness of the edges of boot.
soles upon which the cutter is to operate.
This is accomplished by forming the "lip" which trims the welt and the "bed"
which trims the edge of the sole in one piece and the "channel guard" in a
separate piece which is so made as to pass into the spaces between the teeth of the
"bed." Either the portion forming the "lip" and "bed" may be secured upon
the spindle and the portion forming the "channel guard" be made adjustable to it.
or vice versa.
The adjustment may be by means of a screwed nut which may either be made to.
engage a collar formed upon one portion of the cutter or compress a spring placed
between the two portions of the cutter, or other equivalent means, as for instance a
set screw, may be employed.
The greatest diameter of the "bed" of the cutter must be next the "lip" which
trims the welt.
00 1 1
T 1
1005
Improvements in Cutters for Trimming the Soles of Boots and
Shoes.
I WILLIAM HENRY DORMAN of The Hawthorns, Newport Road, Stafford,.
Engineer 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 :-
The object of this invention is to improve the construction of rotary cutters.
which are employed for trimming the edges of the soles of boots and shoes and
consists in forming the cutters in two parts which can be adjusted relatively to
each other upon the spindle which carries them so as to increase or diminish the
width of the cutter to suit the variations in thickness of the edges of boot soles
upon which the cutter is to operate.
This is accomplished by forming the "lip" which trims the welt and the "bed"
which trims the edge of the sole in one piece and the "channel guard" in a
separate piece which is so made as to pass into the spaces between the teeth of the
"bed." Either the portion forming the "lip" and "bed" may be secured upon
the spindle, and the portion forming the "channel guard" be made adjustable to it.
or vice versa.

page_text: 1
between the two portions of the cutter, or other equivalent means, as for instance a
set screw, may be employed..
My invention is illustrated by the accompanying drawings in which :-
Fig. 1. is a view partly in section shewing one form of my improved cutter.
Figs. 2 and 3. shew the portion of the cutter forming the "bed " and the "lip."
Figs. 4 and 5 shew the portion forming the channel guard.
Figs. 6 and 7 shew the sleeve guard.
Figs. 8, 9, 10 and 11 shew alternative constructions.
Referring-first-to Figs
to 7:
The spindle a. is shouldered down at a¹ to receive the cutter b. which is secured
in position by the "shield " c. and screw d..
The "bed" b¹ and the "lip". 62 are formed on the cutter b. which has also
formed upon it the cutting teeth 63, the cutter being in these respects similar to
that known as the "Busell" cutter.
I form the channel guard e. in a separate piece with projecting teeth e' which
pass into the spaces * between the teeth 63 of the cutter b. and so that this channel
guard may be adjusted nearer to or further from the lip 62 I make it with a screw
thread which engages a thread a² formed on the spindle a. to receive it. The
adjustment is made by slackening the screw d. so as to free the cutter b when by
revolving the cutter b. and the guard e the screw a² will cause the guard e to
advance or recede (according to the direction of turning) upon the spindle a.
relatively to the lip b
The sleeve guard f. is secured upon the body e³ of the channel guard e by means
of screws and is provided with openings f² for the escape of the cuttings which
come from the edge of the boot sole.
Fig. 8. shews a construction in which the adjustment of the channel guard e
relatively to the "lip" 62 is made by means of a screwed nut g. running upon a
thread a³ on the spindle at and engaging a collar h. upon the channel guard.
Fig. 9. shews a very similar construction only that instead of the collar h
a spring i. is employed to withdraw the guard e.
Fig. 10. shews a.construction in which the channel guard e remains stationary
while the "lip" and "bed" bare adjusted to and from it by means of the
screw and spring l.
Fig. 11. shews a construction in which the channel guard e¹ is made to slide
upon the cutter 15 and is maintained in any desired position by the set screws j.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed 1 declare that what I
claim is :
1. In the construction of cutters for trimming the edges of the soles of boots and
shoes the combination of the cutter 6 and shield c with an adjustable channel
guard e substantially as described.
2. Constructing cutters for trimming the edges of the soles of boots and shoes in
the manner herein described and illustrated by Figures 1 to 7.
3. Constructing cutters for trimming the edges of the soles of boots and shoes as
described and illustrated by Figure 8.
4. Constructing cutters for trimming the edges of the soles of boots and shoes as
described and illustrated by Figure 9.
5. Constructing cutters for trimming the edges of the soles of boots and shoes as
described and illustrated by Figure 10.
Dated this 22nd day of April 1896.
W. H. DORMAN.