Improvements in Stud-feeding Mechanism.
Year: 1888

page_text: Date of Application, 12th Nov., 1888
Complete Specification Left, 12th Aug., 1889-Accepted, 12th Dec.,
1889
PROVISIONAL SPECIFICATION.
Improvements in Stud-feeding Mechanism.
We, WILLIAM Ross, of No. 3, Bedford Villas, Bowes Park, and JOHN BILBLE, of
No. 80, Queen Victoria Street, both in the County of Middlesex, Engineers, do
hereby declare the nature of this invention to be as follows:-
Our invention relates to mechanism for providing for and controlling the feed of
studs into the perforations of dies, from which they are driven by pistons adapted to
enter the said perforations, so as to drive the said studs therefrom, for the purpose of
inserting them in flexible material, e.g., sole-leathers.
It has hitherto been customary to feed the studs towards the dies by hand, or by
dropping them down filling tubes adapted to deliver them into the dies as the
perforations in the latter were made to coincide with the respective tubes. Or,
instead of having recourse to mechanical feeding devices such as the one just
described or others of equivalent aim and greater or less efficiency it has sometimes
been the practice to feed the studs into the dies by hand.
In carrying our invention into effect, we provide a box into which the studs may be
fed promiscuously or otherwise. A shaft is supported within the box in suitable
bearings in which it is rotated continuously.
The devices for stirring up the studs in the box and getting them into position for
dropping into the dies consists of a number of projections upon the shaft, around
which they are arranged preferably in the form of one or more spirals.
We do not confine ourselves to any particular type of projection, but may use strips
or continuous or partly continuous spirals. The distances and angles at which the
wires or strips are fixed may be varied as desired.
We may also, and do propose to, make use of a single or multiple gridiron device
for stirring the studs up. This device may be moved with either an oscillatory or a
rotary motion, and the box itself may be jigged also by any suitable mechanism.
We provide a fluted bar or bars or roller to which is imparted a rapid motion, with
the result that studs which are standing obliquely in the perforations are either lifted
out or shorn off, and studs of extra length will also be shorn off.
The above mentioned bar or roller device is mounted in the box in such a position
that the whole die surface shall pass under it after each filling.
Dated this 12th day of November 1888.
PHILLIPS & LEIGH,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Stud-feeding Mechanism.
Wo, WILLIAM Ross of 4, Tottenham Terrace, White Hart Lane, Tottenham, late of
No. 3, Bedford Villas, Bowes Park, and JOHN BILBIE, of 47, Tytherton Road, Tufnell
Park, late of 80, Queen Victoria Street, all in the County of Middlesex, Engineers,
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 :-
Our invention relates to mechanism for providing for and controlling the feed of
studs into the preforations of moving dies, from which they are driven by pistons
adapted to enter the said perforations, so as to drive the said studs therefrom, for the
purpose of inserting them in flexible material, e.g., sole-leathers.
It has hitherto been customary to feed the studs towards the dies by dropping them
down filling tubes adapted to deliver them into the dies, as the perforations in the

page_text: latter were made to coincide with the respective tubes. Or, instead of having
recourse to mechanical feeding devices such as the one just described, or others of
equivalent aim and greater or less efficiency, it has sometimes been the practice to
feed the studs into the dies by hand.
In carrying our invention into effect, we provide a box into which the studs may be
fed promiscuously, or otherwise. A shaft is supported within the box in suitable
bearings in which it is rotated continuously.
The device for stirring up the studs in the box and getting them into position for
dropping into the die consists of a number of projections upon the shaft, around which
they are arranged preferably in the form of one or more spirals.
We do not confine ourselves to any particular type of projection, but may use
strips, or continuous, or partly continuous, spirals of wires. The distances and angles
at which the wires or strips are fixed may be varied as desired.
We may also, and do propose to, make use of a single or multiple gridiron device
for stirring the studs up after the manner of the well known machine stirrers. This
device may be moved with either an oscillatory or a rotary motion, and the box itself
may be jigged also by any suitable mechanism.
We provide a fluted bar or bars or roller to which is imparted a rapid motion, with
the result that studs which are standing obliquely in the perforations are either lifted
out or shorn off, and studs of extra length will also be shorn off.
The above mentioned bar or roller device is mounted inside the box in such a
position that the whole die-surface shall pass under it after each filling.
In order that our invention, and the means by which the same is to be carried
into practical effect, may be thoroughly understood; we will now describe them in
detail, referring in so doing to the accompanying figures, which are to be taken as
part of this specification and read therewith.
Figs. 1, 1a, and 16 are, respectively, a horizontal section, sectional elevation, and
side elevation.
d is the box or hopper; and c, c, a series of transverse pieces producing a gridiron
bottom. is a clearance space inmediately under the gridiron bottom and above the
perforated die plate g-see Fig. 4a. The hopper d is intended. to be jigged with a
to-and-fro motion, so that the upper strata of the studs will rub upon the lower
strata, and thereby work them into proper position for entering the perforations in
the die plate, g.
Figs. 2, 2 a, and 26 are, respectively, a horizontal section, sectional elevation, and
elevation, illustrating the combination of a stirrer capable of both a rotary and
reciprocating motion with a hopper.
d'is the hopper without bottom of any kind. It fits down close upon the top of the
die-plate g. a is the shaft; and b, b, the projections, or arms, arranged spirally
around the said shaft, and preferably pointed. The shaft is rotated in its bearings
through the pulley e, and receives an intermittent endwise motion from a lever f
operated in any convenient way. The said endwise motion may be imparted by any
other equivalent device.
Figs. 3, 3a, and 36 are, respectively, horizontal section, vertical section and
elevation, illustrating a combination of hopper, stirrer, and movable gridiron bottom.
The stirrer is of the same construction as described with reference to Figs. 2, 2 a,
and 2b, but is rotated only. The gridiron bottom c is jigged by any suitable device
to-and-fro above the die-plate g, as the arms b move through the spaces in the
grid c.
Figs. 4, 4a, and 4b, are, respectively, horizontal section, vertical section and side
elevation illustrating a construction in which the rotary stirrer is dispensed with.
The gridiron bottom is of the same construction as the one illustrated in Figs. 3, 3 a,
and 36, and described therewith.
The sides of the spaces in the gridiron hopper bottoms above described are
preferably bevelled, as shewn in Figs. 1 and 1a, to prevent the studs jamming
between the die-plate and the said grid bottom, but they may be vertical as shewn in
Figs. 3, 3 a, 4 and 4a,

page_text: Tho object of the clearance spaco c' illustrated in Figs. 1a, 3a and 4a is to give
time to a stud that has dropped say-half way into a hole in the die plate y, to enter
the hole completely before the sides of the hopper can contact with it.
Fig. 5 illustrates the clearing roller. Each hopper is provided with two rollers
which are mounted in suitable bearings on the inside of the hopper so that the rollers
can be rotated rapidly. The cutting edges only just clear the surface of the die-
plate g, and as the axes of the rollers are across the hopper, transversely to the
direction of the motion of the die-plate, it follows that the whole surface of the latter
passes under the rollers, with the result that any stud which has not entered a hole in
the die-plate properly, or projects above it, will be either lifted out or shorn off.
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:
1. In stud-inserting machinery a hopper having a gridiron bottom and adapted to
be jigged upon the die-plate, as set forth.
2. In stud-inserting machinery, the combination of hopper and stirrer capable of
receiving a rotary as well as a to-and-fro motion, as set forth.
3. In stud-inserting machinery, the combination of fixed hopper, grid iron bottom
adapted to be moved with a to-and-fro motion, and a rotary stirrer, the grid and
stirrer receiving a to-and-fro motion as set forth.
4. In stud-inserting machinery, the combination of movable hopper, gridiron-
bottom, and rotary stirrer, the latter adapted to be jigged with the said bottom, as sot
forth.
5. In stud-inserting machinery, the combination of hopper, die-plate, and clearing
roller, as set forth.
Dated this 21st day of November 1889.
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, W.C., Agents for the Applicants.