Improvements in Metallic Wearing Plates (Protectors), Applicable to the Soles and Heels of Boots, Shoes, and other Coverings for the Feet.
Year: 1889

page_text: Date of Application, 4th June, 1889-Accepted, 13th July, 1889
COMPLETE SPECIFICATION.
Improvements in Metallic Wearing Plates (Protectors), Applicable
to the Soles and Heels of Boots, Shoes, and other Coverings for
the Feet.
We EDWARD DUERDEN Weaving Master and JOSEPH CHEETHAM Spinning Master
both of Ismailofski Manufactory, Ismailove near Moscow, Russia do hereby
declare the nature of our said invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement
This invention relates to an improved construction of and means of attaching
metallic plates or patches technically called protectors to any part of the wearing
surface of a boot or shoe and thus to increase the wear or durability of that particular
part.
"
As applied to the heel the improved protector is in a circular form and is capable
of being turned around a central axis so as to present a fresh wearing surface as
required from time to time.
And in order that this our said invention may be the more readily understood and
carried into practical effect we have hereunto annexed a drawing illustrative of our
improvements in boot and shoe wearing plates and of their practical application and
will now proceed to describe the same with the assistance of the various Figures and
letters of reference marked thereon.
Fig. 1 represents the underside of a boot having our improved wearing plates
applied thereto the circular heel plate being represented by the letter a and the sole
plates by the letter b. Fig. 2 is a side sectional view of the heel part of Fig. 1.
Fig. 3 is a separate plan view showing one face and Fig. 4 a similar view showing
the other face of the improved circular heel plate and Fig. is a transverse section
of Fig. 3 on the line a-b. Fig. 6 is a side sectional view of one of the improved sole
plates taken across the line c-d.
Our improved circular heel plate is constructed of cast metal by preference of
malleable iron or steel and is formed hollow or with a circular cavity c in the centre
surrounded on its inner edge by a projecting flange or ledge cas seen more clearly
in Fig. 5. This cavity is designed to be filled in with one or more thicknesses or
layers of leather or other suitable wearing material d, d and which latter is or are
secured to the heel e of the boot as seen more clearly in Fig. 2 by being pegged
screwed, nailed or spiked thereto in the ordinary manner of building up the heel of a
boot or shoe. The outer edges of these layers d, d extending over the flanged
portion c¹ of the heel plate whilst their centres are secured to the boot heel proper as
herein before described so serve to secure such plate in position upon the heele without
necessitating any separate means of fastening the same. This mode of attachment as
aforesaid enables the circular heel plate e to be turned around its axis independantly
of the fixed central portion d so as to present a fresh segment of such circular plate as
one part after another wears down and thus the entire circle of the metal plate c can
be utilised as wearing surface.
A convenient means of turning the heel plate c is afforded by a series of holes ff
and by employing such an instrument as indicated in Fig. 7. By inserting the
point g of this instrument in either of the holes and bringing the other point / into
contact with the outer edge of the heel plate c a leverage is obtained which enables
the user to turn such heel plate to any desired extent or so as to present any desired
segment thereof as wearing surface at any particular part of the heel.
In the case of the sole plates 6 they only differ in shape from the heel plate a and
not being required to turn round may be made of any desired size or shape and to
suit the part of the sole to be protected. As indicated by sectional view Fig. 6 these

page_text: sole plates 6 are provided with the same flanged cavity (which is the essential feature
of our invention) designed to be filled with leather and secured to the sole in precisely
the same manner as herein before described with reference to the heel plate a.
We wish it to be distinctly understood that we make no claim to metallic plates
for the purposes aforesaid save and except when formed with a flanged cavity filled
and secured in position as hereinbefore described.
Having thus particularly described and ascertained the nature of this our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1st. In the construction of metallic sole and heel plates the employment of cavities
surrounded by an internal flange or ledge and filled with leather or other suitable
wearing material substantially as and for the purpose hereinbefore described.
2nd. The improved combination of metallic wearing plates or protectors with a
cavity internally surrounded by a flange or ledge with the cavity filled in with leather
or other suitable wearing material and adapted to be secured in position substantially
as and for the purpose herein before described.
3rd. The improved construction of metallic heel plate or protector with a circular
cavity internally surrounded by a flange or ledge and so filled in with leather or other
suitable wearing material and secured in position as to be capable of being turned
around its central axis substantially as and for the purpose hereinbefore described.
Dated this 3rd day of June 1889.
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent for the Applicants.