Improvements in the Manufacture of Boots and Shoes.
Year: 1890

page_text: Date of Application, 10th June, 1890
Complete Specification Left, 10th Apr., 1891-Accepted, 10th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Boots and Shoes.
I ALFRED ADDISON BLANDY M.D. of 58 Brook Street Grosvenor Square
London in the County of Middlesex do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in the manufacture of the soles and heels
of boots and shoes.
The uppers are lasted as usual upon the insole in this case advantageously
assisted in securing them water proof by adding a fine fabric covered with a
vulcanized substance such as that for which I received the grant of Letters Patent
dated the 28th day of February 1889 No. 3591 and known as "Blandite" this thin
proofing is placed between the insole and the upper then a thin metal plate is sewn
or rivetted upon the whole and extending over the entire sole.
This plate is stamped out and perforated with holes near the edge for the nails
or rivets or for the sewing; small slots are also punched (when stamping out the
said plate) or formed at short distances and as near the holes or edge as strength
will permit, these slots enable a second plate to be securely attached by the latter
having corresponding tongues stamped or formed therein to accurately fit in the
said slots the two plates thus are firmly joined together and so fixed as to have but
one movement in adjustment one half of this second or tongued plate meeting the
other half at the front end of waist and is there fixed either by screws or what
perhaps is more advantageous a sort of hinge or knuckle locked by a pin extending
through from side to side and is capable of an almost invisible finish. The front
half carries the fore sole and is drawn home from the toe end towards the waist
while the heel and waist part is pressed home from the heel and the two being
secured by means of the pin or screws as they come together as before described
and each has the same even fixture upon each other and is free from wear and
invisible in the finished boot. Thus they can be placed and removed without
difficulty and very expeditiously. To these moveable plates can readily be secured
either ordinary leather (so as to give the same effect and appearance as shocs now
in use) or these said plates may carry rubber gutta percha or imitations of the
latter or of leather for instance my present invention will be found very advan-
tageous for use with the before mentioned vulcanized compound known as.
"Blandite," which latter would thus act as a substitute for leather resisting water
hard usage and heat and moulded and pressed or otherwise formed into the desired
shapes and is therefore capable of retaining its union with the said moveable plates
upon which can be formed the shapes and forms of every change in fashion. The
wearing surfaces may carry within the substance any desired metal or protecting
substance to resist wear and tear.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Boots and Shoes.
I ALFRED ADDISON BLANDY M.D. of 58 Brook Street Grosvenor Square
London in the County of Middlesex 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 improvements in the manufacture of the soles and heels
nt and choos

page_text: The uppers are lasted as usual or in any suitable way upon the insole in this
case advantageously assisted in securing them waterproof by adding any water-
proof material as for instance a fine fabric covered with a vulcanized substance
(such as that for which I received the grant of Letters Patent dated the 28th day
of February 1889 No. 3591 and known as "Blandyte ") this thin proofing is placed
between the insole and the upper then a thin metal plate is sewn or rivetted or
otherwise suitably secured upon the whole and extending over the entire sole.
This plate is stamped out and may be perforated with holes near the edge for
the nails or rivets or for the sewing; small slots are also punched (advantageously
when stamping out the said plate) or formed at short distances apart and as near
the holes or edge as desired or as strength will permit.
A second plate is also stamped out or otherwise suitably formed advantageously.
in two parts and is securely attached to the aforesaid plate on the insole by means
of tongues (corresponding to the said slots) stamped or formed therein to accurately
fit in the said slots; these tongues may widen from the point to the base so that
when pushed home in the said slots they will afford great strength-the said plates
are thus firmly joined together and so fixed.
The tongued plate is formed in two parts so that one half of this second or
tongued plate meets the other half at the front end of waist and is there fixed by
any suitable fastening for instance screws or what perhaps is more advantageous a:
sort of hinge or knuckle joint locked by a pin extending through from side to side
and is capable of an almost invisible finish.
The front half carries the fore sole and this "forepart" is drawn home from the
toe end towards the waist while the heel and waist part that is the "back part' is
pressed home from the heel and the two being secured by means of the said
fastenings as they come together as before described.
Thus these removable parts can be placed and removed without difficulty and
very expeditiously and new parts can be readily substituted when it is desired.
To these movable plates can readily be secured any suitable substance or material
for instance either ordinary leather (so as to give the same effect and appearance as
shoes now in use) or these said plate may carry rubber gutta percha or imitations
of the latter or of leather-for instance my present invention will be found very
advantageous for use with the compound invented and patented by me and known
as "Blandyte" which latter would thus act as a substitute for leather or gutta
percha resisting water hard usage heat and cold and is moulded and pressed or
otherwise formed into the desired shapes and is capable of retaining its union with
the said movable plates. By these means the shapes and forms of every change in
fashion can be readily obtained.
The aforesaid compound "Blandyte" or other like material may be moulded
upon the aforesaid tongued plates and the material thereafter vulcanised on the
said plate thus obtaining an important feature of economy.
The wearing surfaces may carry within the substance any suitable metal or
protecting substance to resist wear and tear-if desired.
And in order that my present invention may be easily understood and readily.
carried into practice I will proceed to further describe same with reference to the
drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation of a boot manufactured in accordance with my
present invention-parts being broken away to show my improvements.
Figure 2 is a cross section on line 1-1 Figure 1.
Figure 3 is an underside plan of the boot with the two movable parts (i.e. (1) the
outer sole and (2) the heel and waist) removed.
Figure 4 is a cross section on line 3-3 Figure 3.
Figure 5 is a plan of the inner surface or "inside" of the removable "forepart"
or outer sole.

page_text: Figure 6 is a cross section on line 5-5 Figure ɔ.
Figure 7 is a plan of the inner surface or inside of the removable "back part "
or heel and waist.
Figure 8 is a cross section on the line 7-7 Figure 7.
Figure 9 is an underside plan of the complete boot-showing the join where the
outer sole meets the waist.
Figure 10 is a local view in plan of the underside surface or inside of the fore-
part and waist just where the latter meets the former and are joined-the method
illustrated being a kind of hinge joint.
Figure 11 shows the pin used in this hinge joint.
Similar letters of reference indicate corresponding parts throughout.
a is a metal or other suitable plate secured to the insole and upper b by sewing a
(or rivetting or other suitable means) any suitable waterproofing or waterproof
material being introduced under this plate a as desired.
ce are slots or openings cut or formed in the plate a one edge of each slot being
raised somewhat as shown at d Figures 3 and 4 so as to readily receive the tongues or
projections stamped up or formed on the plate e secured (similarly to a) to the
inside surface of the outer sole or fore part and similarly on the back part Figure 7-
the only difference being that the raised edges d and tongues f in the back part are
arranged in the opposite direction to those of the forepart see Figures 35 and 7.
The direction of these openings c d and of the tongues fall being approximately
parallel with the length of the boot or shoe.
The larger tongue g is a guiding tongue or projection which enters the slot h in
the plate a when the forepart is drawn on from the toe-the enlarged tongues ƒ¹ & ƒ³
at the toe and heel respectively also serving as guiding tongues.
The back part Figure 7 is drawn on from the heel towards the forepart the
tongues on both parts (Figure 5 and 7) entering the slots c respectively so that
when the waist and forepart meet and are securely joined to one another as herein-
after described (see Figure 10) these tongues will thus securely bind and secure
and thus fix these two said parts (Figures 5 and 7) to the body of the boot or shoe
whilst at the same time same are readily detachable again when required.
These two parts Figures 5 and 7 may be joined by forming a sort of hinge joint
as shown in Figure 10 (the removable pin of which is shown in Figure 11) so that
such joint is practically invisible or they may be secured to one another or to
the body of the boot or shoe (or both) in any other suitable or desired manner.
As a mere modification of my present invention said two removable parts
(Figures 5 and 7) may be secured to the
e body
of the boot or shoe by other forms
of fastenings similar or equivalent to the tongues and slots or openings c`d.
A further obvious modification of my present invention is as follows:-
The tongues may if desired be struck up or formed on the plate « secured to
the body of the boot or shoe while the corresponding slots or openings c d to receive
these tongues would in that case be formed or arranged on plate e attached to the
removable part or parts.
I wish it to be clearly understood that I make no claim whatever broadly to the
sliding on of either the outer sole or waist or heel of a boot or shoe as I am
fully aware that several Letters Patent have already been granted for such
inventions.
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 :-
In the manufacture of boots and shoes the fixing of the sole heel and waist by
first fastening to the uppers a metal plate containing slots operating in different
directions as shown in Figure 3-secondly fastening the leather or substitute for
leather which is to be used for the sole and heel and waist to two metal plates as
shown in Figures 5 and 7 carrying tongues constructed so as to engage in the slots

page_text: or the metal plate in Figure 3 in opposite directions and thirdly fastening together
the two parts of the sole by means of a pin as shown in Figure 11 or by any
mechanical equivalent for the same.
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