Improvements in Devices for Trimming the Heels or Soles of Boots and Shoes.
Year: 1891

page_text: Date of Application, 11th Aug., 1891-Accepted, 16th Jan., 1892
COMPLETE SPECIFICATION.
Improvements in Devices for Trimming the Heels or Soles of Boots
and Shoes.
1, AMBROSE STEPHENS VOSE, of Maverick Square, Boston, Mass., United
States of America, 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 :-
My invention relates to improvements in devices for trimming the heels or soles
of boots and shoes.
The object of this invention is to improve the construction of the trimmer whereby
advantages in simplicity and economy are secured.
The invention consists in the novel construction and combination of parts herein-
after fully described and specifically pointed out in the claims.
In the accompanying drawing-
Figure 1 represents a perspective view of a trimmer embodying my invention,
the parts being separated to more clearly illustrate their construction and relation;
Figure 2 represents a perspective view of the trimmer with the parts in operative
position.
Referring by letter to said drawing, A designates the wheel of the trimmer,
provided with the hub B, the annular groove or channel C, the series of inclined
throats D, having recesses E, at the mouths thereof, the periphery being provided
with a channel or grooves F and inclined annular flanges G, the purpose being to
conform to the knives and the character of the work. The wheel is also provided
with peripheral cleaning recesses or throats I, which receive the chips cut by the
knives. In the inclined throats D of the wheel are fitted the knives, blades or
cutters H, having the cutting edges J, and at one side cut out at K, and provided
with studs, pins or projections L. In the annular groove or channel of the wheel
is placed the annular ring or band M, having a series of kerfs or recesses N, in the
outer edge thereof to receive the pins or projections L, of the cutters H. This
ring or band is also provided with an aperture O, for the reception of a pin, key or
other instrument for the purpose of rotating the same. From this construction it
will be seen that by turning the ring by means of a pin or key, the knives will be
pushed in or out, as may be desired, and the cutting edges thereof adjusted to suit
the work, as will be readily understood.
The letter Q designates a screw threaded boss having a central aperture for the
passage of a driving rod or shaft to which it is secured. This boss is proved with
an annular flange P, of a greater diameter than the hub, so that when in place it
will project beyond the edges thereof and overlap the plate Mi, so as to retain it
in the groove C. Said flange being provided with a peripheral notch R, to receive
a pin or key by which it may be rotated in screwing it in and out of the hub B.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
In a rotary trimmer, the combination, with the wheel having peripheral recesses
and cutters, an annular groove upon one of its faces, an annular plate seated in said
groove, and an interiorly screw threaded hub, of the screw threaded boss having a
central aperture, and an annular flange projecting beyond the edges of the hub and

page_text: overlapping the annular plate in the annular groove in the wheel, substantially as
described.
Dated 10th day of August 1891.
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.