IMPROVEMENTS IN MACHINERY EMPLOYED IN THE MANUFAC- TURE OF SHOVELS AND OTHER METAL FORMS."
Year: 1881

page_text: LETTERS PATENT to Thomas Titloy, of Leeds, in the County of York, for an
Invention of "IMPROVEMENTS IN MACHINERY EMPLOYED IN THE MANUFAC-
TURE OF SHOVELS AND OTHER METAL FORMS."
PROVISIONAL SPECIFICATION left by the said Thomas Titley at the Office
of the Commissioners of Patents on the 6th October 1881.
THOMAS TITLEY, of Leeds, in the County of York. "IMPROVEMENTS IN
MACHINERY EMPLOYED IN THE MANUFACTURE OF SHOVELS AND OTHER METAL
FORMS."
My Invention relates to machinery for cutting out shovel blades and other forms
from metal plates.
The framework of the machine is similar to that of the brick press, for which
Letters Patent were granted to me July, 27th, 1875, No. 2658, and I also employ
the vertical screw and nut, and in combination on the same shaft is provided
another screw of a different "hand." This latter screw works into a nut formed
by preference in the cutter head.
By this arrangement, when the machine is in motion, the cutter head is not only
moved down by the first mentioned screw, but simultaneously the additional screw
also causes the cutter head to move down to its work for shearing or cutting the
plates to the desired form, and the operation is much quicker than when only one
screw is employed, although when desired one screw only may be used.
In order to impart motion for the required downward movement, I actuate the
screw or screws through a worm and worm wheel.
The driving shaft carrying the worm and worm wheel has provided thereon two
pulleys, one of which is actuated by a cross and the other by a straight belt, and
consequently caused to move in opposite directions. These pulleys are loose on
the worm shaft, but when required are brought in gear therewith by friction
clutches, either by the attendant or automatically, thus giving motion to the worm.
and worm wheel, and bringing the cutter head thereby down to its work and
raising it therefrom at pleasure.
By the above construction of machine the entire shovel blade or other form may
be cut out at one stroke and in much less time than by machinery hitherto
employed,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Titley in the Great Seal Patent Office on the 6th April
1882.
THOMAS TITLEY, of Leeds, in the County of York. "IMPROVEMENTS IN
MACHINERY EMPLOYED IN THE MANUFACTURE OF SHOVELS AND OTHER METAL
FORMS."
My Invention relates to machinery for cutting out shovel blades and other forms
from metal plates.
The framework of the machine is similar to that of the brick press, for which
Letters Patent were granted to me, July 27th, 1875, No. 2658, and I also employ
the vertical screw and nut, and in combination on the same shaft is provided
another screw of a different "hand." This latter screw works into a nut formed
by preference in the cutter head. By this arrangement, when the machine is in
motion, the cutter head is not only moved down by the first mentioned screw, but
simultaneously the additional screw also causes the cutter head to move down to
its work for shearing or cutting the plates to the desired form, and the operation is
much quicker than when only one screw is employed, although when desired one
screw only may be used.
In order to impart motion for the required downward movement, I actuate the
screw or screws through a worm and worm-wheel.
The driving shaft carrying the worm has provided thereon two pulleys, one
being actuated by a cross and the other by a straight belt, and consequently caused
to move in opposite directions. These pulleys are loose on the worm shaft, but
when required aro brought in gear therewith by friction clutches, either by the
attendant or automatically, thus giving motion to the worm and worm-wheel, and
bringing the cutter head thereby down to its work and raising it therefrom at
pleasure.
By the above construction of machine the entire shovel blade or other form may
be cut out at one stroke and in much less time than by machinery hitherto
employed.
And in order that my Invention may be more completely understood, reference
is given to the accompanying Drawings and to the letters and marks thereon.
Fig. 1 is a front elevation; Fig. 2, a transverse section through A, B, Fig. 1;
Fig. 3, a part transverse section through C, D, Fig. 1; Fig. 4, a sectional plan
through E, F, Fig. 1.
a is a foundation plate on which is mounted the framework b of the machine,
such framework 6 being secured to the foundation plate a by bolts c. The cutter
head d is fitted within the framework b so as to slido freely, and retained in
position by the cape attached to the framework 6 by screws or bolts f. The
upper cutter or die may be of any desired form and carried at the lower end of the
cutter head d, and secured thereto by ordinary means. The lower cutter or die g
is carried on the foundation plate a, these dies upon being brought together on the
metal at a suitable pressure cut it or form it into shovels or other articles.
In order to impart the required motion and pressure to the cutter head d, I
employ a worm and worm-wheel i, and impart motion to the worm h from loose
pulleys and on the worm shaft m, such worm shaft m being carried in bearings
nand o on the framework b. In combination therewith I employ the vertical
shaft p, on which are cut or provided the right and left hand screws q and r.
this shaft is keyed the worm wheel i. I also provide a nut 8 secured within the
framework b for the upper screw g and another nut t, secured within the cutter
On

page_text: head & for the lower scrow 7. By this arrangement not only is the cutter head d
moved down to its work by the upper screw q being caused to turn in its not s
but simultaneously the lower screw r, turning in the nutt in the cutter head d
also causes the cutter head d to work down. By this means the upper cutter or
die is brought down and the form cut or pressed out in considerably less time than
by machines of ordinary construction.
I employ on one of the loose pulleys a cross belt and on the other a straight
belt, and in between them is provided a friction clutch , which is keyed on the
worm shaft m, the loose pullies and may be alternately brought in gear there-
with by the forks v or w, actuated by the bar a froin the hand lover y through
the connecting rod . By this means the machine can be readily put in motion
and reversed or stopped at pleasure.
The fly wheel 6 keyed on the upper end of the shaft 2) assists by its momentum
and weight in the cutting or forming operation. The fly wheel b and the worm-
wheel i are so keyed on the vertical shaft pas to allow it to slide up or down
through them.
Sometimes I employ the pins c₁ passing through the loose pulleys and 7, and
fitting in corresponding holes in the friction disc in combination with the friction
clutch arrangement. I would here remark that although I have shewn the appli-
cation of friction clutches to this machine, other clutches or driving gear may be
employed for imparting or transmitting rotary movement to the worm h.
Having now described the nature of my said Invention, and described with
the aid of Drawings how the same may be carried into practice, I would have it
understood that I do not limit myself to the precise details or configuration of the
parts I have described and shewn, as the same may be varied or modified without
departing from the nature of my said Invention; what I do claim is,—
First. The arrangement and application of shaft p with its screws q and r, and
the parts in combination therewith, for imparting motion to and pressure through
the cutter head d, substantially as and for the purposes herein set forth.
Second. The arrangement and combination of the various parts forming the
machine for cutting shovel blades & other forms from metal plates, substantially
as and for the purposes herein set forth.
In witness whereof, I, the said Thomas Titley, bave hereunto set my hand
and seal, this Twenty eighth day of March, in the year of our Lord One
thousand eight hundred and eighty two.
THOMAS TITLEY. (L.S.)