An Improved Manufacture of Flanged Studs for Application to the Bottoms of Boots and Shoes.
Year: 1891

page_text: Date of Application, 11th Mar., 1891
Complete Specification Left, 27th Aug., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
An Improved Manufacture of Flanged Studs for Application to the
Bottoms of Boots and Shoes.
I, HEINRICH FUHRBERG, of 301 Goswell Road, London, Furrier, do hereby
declare the nature of this invention to be as follows:-
This invention has for object, the manufacture of specially shaped flange studs
for application to the bottoms of boots and shoes without any special operation on
the leather except the punching of holes where the studs have to be placed.
For the purpose of my invention, I make each stud of india rubber, or its com-
pound with an elongated head, this gradually thinning down to the edge from the
centre to offer as little thickness as possible at the central part which might
otherwise interfere with the necessary level formation of the parts, between which
the flanges of several studs are arranged.
The studs are of such a depth as to project slightly beyond the wearing surface
of the leather in which they are fitted and in order that the outer face of the flange
and of the inner face of the leather be level one with the other, the leather may be
compressed at the parts to be occupied by the flanges.
Dated this 11th day of March 1891.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Heinrick Fuhrberg.
COMPLETE SPECIFICATION.
An Improved Manufacture of Flanged Studs for Application to the
Bottoms of Boots and Shoes.
I, HEINRICH FUHRBERG of 301 Goswell Road, London, Furrier, do hereby
declare the nature of my 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 has for object the manufacture of specially shaped flanged studs
for application to the bottoms of boots and shoes without any special operation on
the leather except the punching of holes where the studs have to be placed.
For the purpose of my invention I make each stud of india rubber or its com-
pound with an elongated head, this gradually thinning down to the edge from the
centre to offer as little thickness as possible to the central part which might
otherwise interfere with the necessary level formation of the parts between which
the flanges of several studs are arranged.
The studs are of such a depth as to project slightly beyond the wearing surface
of the leather in which they are fitted and in order that the outer face of the
flange and of the inner face of the leather be level one with the other, the leather
may be compressed at the parts to be occupied by the flanges.
The annexed drawings Figures 1 to 4 show iny invention of a sole stud and a
heel stud respectively.
Figure 5 represents in perspective the bottom or outer sole and heel of a lawn
tennis boot or a shoe with my studs in position.
A is the circular or other shaped stud.
B, the chamfered flange formed in a piece with the stud, the flange being
sufficiently thick at the centre to prevent it becoming detached therefrom; it is
also broad and is tapered outwardly to a fine edge to obtain a full surface contact

page_text: and positive location between the outer sole and the inner or liner sole by which it
is held securely when the outer sole is sewn on or the heel piece nailed on.
The outer face of the studs project beyond the surface of the sole as the tread
so that they come in contact with the ground.
The studs and the tapered flanges may be of any dimensions and be placed in
any desired order in holes already cut or punched in the sole or in the heel lift.
For that part of the heel where the first contact with the ground takes place I
purpose making the stud of oval shape as seen at Figure 5 and the flange
slightly longer in one direction than in the other but any shape or size of flange
may be arranged so long as it tapers from the stud to an outward fine edge.
I am aware that holes have been prepared in outer soles and that rubber plugs
have been pushed through from the inside so as to form a tread to the boot or shoe,
the back of the stud being of larger diameter to lodge in an enlarged portion of
the hole for retaining the stud in place and be flush with the inner surface of the
outer sole. I am also aware that tapered holes have been prepared in outer soles
and tapered plugs as studs have been placed therein also that an inner or liner sole
has been prepared with studs projecting therefrom for passing into a holed outer
sole. My invention differs from the foregoing in this respect-
1. The holes in the outer soles are simi ly made by a punoh and are of the same
diameter from inner to outer surface.
2. My studs have broad flanges tapered outwardly to a thin edge.
3. The flanges of my studs bear in contact with the inner surface of the
outer sole.
4. The broadness of the flanges bring their edges contiguous and constitute,
roughly speaking, a level surface for bearing against the inner sole or liner if one
be used.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The manufacture and employment in boot and shoe soles and heel lifts of studs
to pass into holes and with broad outwardly tapering flanges to rest upon the inner
surface of such a sole or heel lift as described and substantially as shown by the
annexed drawings.
H. GARDNER,
Patent Agent, 166, Fleet Street, London, Agent for the said H. Fuhrberg.