Improvements in Machines for Screwing the Soles of Boots and Shoes or other Leather Work.
Year: 1896

page_text: Date of Application, 22nd Dec., 1896
Complete Specification Left, 22nd Sept., 1897-Accepted, 23rd Oct., 1897
PROVISIONAL SPECIFICATION.
Improvements in Machines for Screwing the Soles of Boots and Shoes
or other Leather Work.
I, WILLIAM HENRY DORMAN of the Green Hall, Stafford, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention is intended to improve the work feeding arrangement in
machines which are used for screwing together the soles of boots and shoes or
for other work of a like character the principal object being that light or soft
middle soles may be more efficiently fed and that the distance inwards of the screws
may be regulated from the feather of the boot instead of from the edge of the sole.
Instead of the methods of feeding the work usually employed I make use of a
feeding foot which may be operated by a suitable cam and spring connection.
The foot is moved up and down so as alternately to be thrust down upon the
work and raised again therefrom; while at the same time another cam, or an
already existing lever, through other suitable connections gives to the foot a
forward feeding movement while it is down on the work, and a return movement
when it is raised from the work. The cams are suitably shaped and timed to give
these movements of proper amount and at proper times to co-operate with
the other movements of the machine to which the feeding arrangement is applied,
and an arrangement is made by which the amount of the feeding movement may
be varied at pleasure and if desired the amount of the up and down movement
of the foot also.
In the screwing machine generally known as the "Rapid Standard Screw
Machine" I mount a cam upon a convenient rotating shaft of the machine so as to
operate a short beam pivoted upon the head frame and having at its outer end a
pendulous bar which carries at its lower end the feeding foot. A spring keeps the
cam roll in contact with the surface of the cam and the foot is moved up and down
as the cam rotates.
Upon a convenient oscillating lever of the machine I mount a segment which
operates another segment pivoted in the head frame and connected to a short
pendulous lever which engages the bar previously mentioned and to which it
upon which the first mentioned segment is mounted.
communicates a to and fro swinging movement derived from the machine lever
Slots in the levers with adjustable pins therein allow of varying the amount
of the feeding movement.
The details of construction may be varied to suit the requirements of differently
constructed machines and give the feeding movement to the foot.
I also employ an adjustable gauge which takes against the feather of the boot
and regulates the distance in from the feather at which the screws are driven.
The gauge may be mounted on a lever pivoted to a fixed part of the machine and
be kept up to its work by the pressure of a spring.
Dated this 21st day of December 1896

page_text: Improvements in Machines for Screwing the Soles of Boots and Shoes
or other Leather Work.
I, WILLIAM HENRY DORMAN of the Green Hall, Stafford, Engineer do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
This invention is intended to improve the work feeding arrangement in
machines which are used for screwing together the soles of boots and shoes or
for other work of a like character the principal object being that light or soft
middle soles may be more efficiently fed and that the distance inwards of the screws
may be regulated from the feather of the boot instead of from the edge of the sole.
Instead of the methods of feeding the work usually employed I make use of a
feeding foot which may be operated by a suitable cam, and spring connection.
The foot is moved up and down, so as alternately to be thrust down upon the
work and raised again therefrom; while at the same time another cam, or an
already existing lever, through other suitable connections, gives to the foot a
forward feeding movement, while it is down on the work, and a return movement
when it is raised from the work. The cams are suitably shaped and timed to give
these movements, of requisite amount and at the proper times to co-operate with
the other movements of the machine, to which the feeding arrangement is applied,
and an arrangement is made by which the amount of the feeding movement may
be varied at pleasure, and if desired the amount of the up and down movement
of the foot also.
To regulate the distance inwards from the feather of the boot at which the
screws shall be inserted I make use of an adjustable gauge suitably operated which
takes against the feather of the boot instead of against the edge of the sole.
The accompanying drawings illustrate my invention as applied to the machine
generally known in the trade as the "Rapid Standard Screw Machine."
Fig. 1 is a side view shewing my invention.
Fig. 2 is a front view of the same and
Fig. 3 is a back view of the same.
I mount a cam a upon a convenient rotating shaft, of the machine, as b, so as to
operate a short beam c which is mounted on a pivot d upon the head frame e and
has at its outer end a pendulous bar f which carries at its lower end the feeding
foot g which may either be made with a serrated under surface to hold the work
or with a point to enter the work. A spring / keeps the cam roll i in contact with
the cam a and the foot g is moved up and down as the cam a rotates.
h
Upon a convenient oscillating lever of the machine, as j, I mount a segment k
which operates another segment / mounted on a shaft m in the head frame e, the
shaft m carrying also a pendulous lever n which engages the bar f to which it
communicates a to and fro swinging movement derived from the machine lever j
upon which the segment k is mounted. Slots o and p in the levers allow the pin q
to be adjusted so as to vary the amount of the feeding movement,
The gauge which takes against the feather of the boot I prefer to make in the
form of a roll r and it is horizontally adjustable by means of a rack s, pinion t and
hand wheel u to and from the centre of the machine spindle r. It is mounted on
a lever v which is pivoted on a pin preferably in a slide w operated, so as just
to release the gauge r at the time of the feeding movement, by a cam x levers y. y¹.
and connecting rods y³. y³.
The spring z keeps the gauge r up to the work.

page_text: The details of construction may be varied to suit the requirements of screwing
machines of different construction to the one herein in part described and
illustrated.
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 screwing machines of the kind herein referred to and used for the purposes
mentioned.
1. The employment of a feeding foot or point for feeding forward the work,
the feeding movement being derived from the machine as described.
2. The employment of a gauge for regulating the distance inwards at which the
screws are inserted which gauge takes against the feather of the boot as described.
3. The combination of a mechanically operated feeding foot and feather gauge
as herein described and illustrated.
4. The use of a feeding point, operated by the machine which enters and feeds
forward the work, but the holes made by it do not coincide with those made by the
insertion of the screws as described.
5. The combination of a feeding point operated by the machine, and which
enters and feeds forward the work, but the holes made by it do not coincide with
those made by the insertion of the screws with a gauge which enters the feather
of the boot and is adjustable for the purpose of regulating the distance inwards of
the screws from the feather of the boot."
6. The feeding mechanism and the mechanism constituting the feather gauge
as described and illustrated.
..
1. 1907