IMPROVEMENTS IN MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF CUT NAILS
Year: 1874

page_text: LETTERS PATENT to David Wormald, of Leeds, in the County of
York, for the Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS
EMPLOYED IN THE MANUFACTURE OF CUT NAILS."
Sealed the 24th July 1874, and dated the 27th January 1874.
PROVISIONAL SPECIFICATION left by the said David Wormald at
the Office of the Commissioners of Patents, with his Petition, on
the 27th January 1874.
I, DAVID WORMALD, of Leeds, in the County of York, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN MACHINERY
OB APPARATUS EMPLOYED IN THE MANUFACTURE OF CUT NAILS," to be as
follows:-
My Invention consists in the application of a self-acting apparatus to
cut nail machines for feeding the "screeds" or strips of metal to the
cutters, saving thereby a considerable amount of time and experienced
labour, as hereafter described.
On a foundation plate I provide a carrier, on which is hinged a barrel,
through which I pass a shaft; on the end of the shaft is provided a
nipper or holder for the "screeds or strips.
"

page_text: In order to turn the " screeds" or strip over after every cut of the
machine I give an intermittent rotary motion to the herein-before men-
tioned shaft by means of a ratchet-wheel motion or its equivalent
through suitable gearing.
"
In order to feed the "screed or strip to the nail-cutting machine I
also give to the shaft a traversing motion. For this purpose I cut a screw
on the shaft, into which I gear a pinion, which screw serves as a rack,
and is acted upon by the pinion, motion being given thereto through
suitable gearing. On the "screed" or strip being turned over it is
necessary to raise it from the block on which it is to be cut; for this 1
purpose I give an oscillating motion to the barrel by means of a cam
eccentric or their equivalents. To admit of this oscillating movement
the barrel is hinged on the herein-before mentioned carrier.
I-provide an arrangement whereby the motion of the machine or
apparatus is stopped when the "screed" or strip is finished.
I also provide an arrangement for throwing the pinion out of gear
with the screw on the shaft herein-before mentioned in order that the
shaft may be drawn back quickly by the attendant, and a fresh "screed'
or strip placed within the nippers.
"
1
-SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Wormald in the Great Seal Patent Office
on the 27th July 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
WORMALD, of Leeds, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of January, in the
year of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc- 8
cessors, give and grant unto me, the said David Wormald, Her special
licence that I, the said David Wormald, my executors, administrators,
and assigns, or such others as I, the said David Wormald, my executors,

page_text: administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ircland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN MACHINERY OR APPARATUS EMPLOYED IN THE MANUFACTURE OF CUT NAILS,"
upon the condition (amongst others) that I, the said David Wormald,
my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said David Wormald, 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, reference being had to the accompanying Drawings,
and to the letters of reference marked thereon, that is to say:
My Invention consists in the application of a self-acting apparatus to
cut nail machines for feeding the "screeds" or strips of metal to the
cutters, saving thereby a considerable amount of time and experienced
labour, as hereafter described.
In order that my Invention may be completely understood referenco is
given to the accompanying Sheet of Drawings, in which Fig. 1 is a sido
elevation, Fig. 2 an end elevation, and Fig. 3 a plan looking on the top
of machinery constructed according to my Invention.
On a foundation plate a I provide a carrier b, on which is hinged the
barrel c by means of the bracket d and arm e. Through the barrel c I
pass a shaft f, on the end of which shaft is provided a nipper or holder
for the "screeds or strips.
"
I
In order to turn the "screed" or strip over after every cut of the
machine I give an intermittent rotary motion to the herein-before men-
tioned shaft by means of a ratchet wheel / actuated by the pawl i, the
required motion being imparted thereto from the rocking shaft j through
the lever and rod l. Other equivalent means may be employed to give
the required motion.

page_text: In order to feed the "screed" to the nail cutting machine I also give
to the shaft a traversing motion. For this purpose I cut a screw on
the shaft as shown, into which I gear a pinion m. The screw serves
as a rack, and is acted upon by the pinion m, motion being transmitted
thereto from the rocking shaft through the lever n, connecting rod o,
pawl p, ratchet wheel q, and gearing r, or by other equivalent means.
On the "screed" or strip being turned over it is necessary to raise it
from the block on which it is to be cut. For this purpose I give an
oscillating motion to the barrel by means of a cam, eccentric, or crank 8
coupled to the barrel as shewn at t by means of the connecting rod u.
To admit of this oscillating movement the barrel c is hinged on the
carrier 6 as shewn at d.
I also provide an arrangement for throwing the pinion out of gear
with the screw on the shaft herein-before mentioned in order that the
shaft may be drawn back quickly by the attendant and a fresh "screed"
or strips placed within the nippers. For this purpose I mount the sliding
shaft in suitable bearings on the bracket w.
0
On the end of the sliding
shaft vis provided the swing lever x, which is provided with a suitable
weight, as shewn at y. The swing lever x rests upon the shaft f until
the end f¹ of the shaft passes within the barrel, when the lever imme-
diately drops, and at the same time turns the shaft round. On
the shaft is provided a link z, through which is passed the end of
the lever 1, which lever is acted upon by the turning of the sliding
shaft v.
As the lever x drops the link z lifts the end of the lever 1, by
which means the pinion m is thrown out of gear with the screw on the
shaft f, and allows by this means the shaft f to be moved backwards and
forwards by the operator at pleasure.
In order to stop the machine when the "screed" or strip is finished I
provide a clutch box ¹ on the rocking shaft j, which is thrown out of
gear by means of the sliding shaft v, whereby the lever 2 is held in
position by the catch 3 at the end of the sliding shaft v.
It will be readily understood that by the shaft being turned over by
the action of the lever x the lever 2 is relieved from the catch 3. The
lever 2 is immediately afterwards acted upon by the springs 4 or their
equivalents whereby the clutch box j¹ is thrown out of gear and the
machine brought to a standstill.
The slides 5 and 6 are for regulating the herein-described machine
with respect to the nail cutting machine in accordance with the size of

page_text: the nails required; also for the purpose of varying the traverse of the
shaft change wheels are employed to take the place of the gearing r.
Motion is given to the herein-before mentioned machine or apparatus
by some suitable motive power.
Having now described the nature of my said Invention, and the
manner in which the same is to be performed, I do not limit myself to
the exact limits, details, and configuration of parts I have explained and
shewn, as the same may of course be varied or modified without in any
way departing from my Invention, but I do claim and desire to be
secured to me by Letters Patent,―
First. The arrangement, construction, and application of those parts
of the machine employed for feeding the "screeds" or strips of metal to
nail cutting machines, substantially as herein set forth.
"
Second. The arrangement, construction, and combination of those
parts of the machine for turning the "screed' or strip of metal over
after every cut, substantially as herein set forth.
Third. The arrangement and construction of those parts of the machine
employed for raising the "screeds" or strips of metal on being turned
over, substantially as herein set forth.
Fourth. The means employed for stopping the machine when the
"screed" or strip of metal is finished, substantially as herein set
forth.
Fifth. The arrangement, construction, and combination of the various
parts for giving the required motions for feeding "screeds" or strips of
metal to nail-cutting machines, substantially as herein set forth.
In witness whereof, I, the said David Wormald, have hercunto set
my hand and seal, this Twenty-fifth day of July, in the year
of our Lord One thousand eight hundred and seventy-four.