Improvements in and relating to Metallic Sole and Heel Plates for Boots and Shoes.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Metallic Sole and Heel Plates for
Boots and Shoes.
We HERBERT SAMUEL LITHGOW residing on 8th Street, above Lehman, and
HENRY HEISLER ROEDEL residing on the corner of 5th and Cumberland Streets,
both in the City of Lebanon, County of Lebanon and State of Pennsylvania, one
of the United States of America, Manufacturers, 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 :-
This invention relates to footwear for use in foundries, furnaces, quarries and
like places where the wear of the sole and heel of boots and shoes is excessive and
has for its object. certain improvements in the construction of sole and heel
protectors which will be hereinafter described and particularly pointed out in the
claims.
In the accompanying drawings which form part of this Specification
Figure 1, represents the bottom or sole of a boot or shoe having an improved
protector attached.
Figure 2, an enlarged section on line x, x, Figure 3.
Figure 3, an enlarged detail of a section of the sole protector, and
Figure 4, an end view of the toe section.
Reference being had to the drawings and the letters thereon, A, indicates a boot
or shoe sole to which is attached a sole plate B, of metal or other material made in
sections a, a, the number and dimensions of which vary according to the size of the
boot or shoe.
The sections are preferably made of sheet metal such as steel, and stamped into
shape in suitable dies, or they may be cast in chills, as is common in the production
of metallic articles having hardened wearing surfaces, and are preferably secured to
the soles and heels by nails as b, near the ends of the sections, or in any other part
of the section, and which have their heads sunk into the plate so that the outer
surface of the head is below or on a level with the grooves of the plate. The nails
are preferably driven through the outer sole of the boot or shoe, to and through
the inner sole and clinched, to prevent the plate coming off should the outer sole
become dry.
The wearing surface of the sole plate consists of elongated projections c, and
grooves d, running diagonally across the plates, the projections being of different
heights as shown in Figure 2, and overlapping each other lengthwise of the shoe.
By this construction a continuous roughened surface is presented for wear from the
time the plate is put on until it is worn down to the sole or heel of the shoe. As
the highest projection wears through, the metal presents the edge thereof which
continues to wear down until the next projection is worn through, and so on until
the plate is worn out; this construction also provides cells e, which are formed in
the rear side of the plate and which may be filled with asbestos or any other
nonconducting material to prevent charring of the leather.
The plates being in narrow sections, the flexibility of the sole of a boot or shoe
is not impaired. The front or toe section may be provided with a vertical flange f,
which surrounds the edge of the sole and affords protection thereto.
When the plates are made of sheet metal, steel of number 16 to 20 gauge will be
of sufficient thickness and will be very light compared with the hob-nails and cast
iron plates in common use.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
First. A metallic protector for boots and shoes comprising a series of plates
having rows of elongated projections and intervening grooves on the outer surface,
and having the inner surface hollow or concave and provided with cells to receive a
suitable filling.
Second. A metallic protector for boots and shoes comprising a series of plates
having rows of diagonally arranged and laterally elongated projections of different
heights and overlapping each other lengthwise of the shoe and intervening grooves
on the outer surface.
Third. A stamped sheet metal protector for boots and shoes made in sections
constructed to be secured at their ends separately and provided with diagonally
arranged elongated projections overlapping each other lengthwise of the shoe..
Dated this 13th day of October 1891.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agente.