AN IMPROVED MACHINE FOR SHEARING, FUNCHING, BENDING, AND OTHERWISE WORKING METAL AND METALLIC ARTICLES
Year: 1869

page_text: LETTERS PATENT to William Robert Lake, of the "International
Patent Office," No. 8, Southampton Buildings, Chancery Lane,
London, Consulting Engineer, for the Invention of "AN IMPROVED
MACHINE FOR SHEARING, FUNCHING, BENDING, AND OTHERWISE WORKING METAL
AND METALLIC ARTICLES."-A communication from abroad by Edward
Charles Bowen, of Sherbrooke, in the Dominion of Canada.
Sealed the 20th July 1869, and dated the 21st May 1869.
PROVISIONAL SPECIFICATION left by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition,
on the 21st May 1869.
1, WILLIAM ROBERT LAKE, of the "International Patent Office," No. S,
Southampton Buildings, Chancery Lane, London, Consulting Engineer,
do hereby declare the nature of the said Invention for "AN IMPROVED
MACHINE FOR SHEARING, PUNCHING, BENDING. AND OTHERWISE WORKING METAL AND
METALLIC ARTICLES," a communication, to be as follows:-

page_text: www
gumming saws.
In my machine the said levers are arranged in combination with
a cam, and all of the parts are mounted upon a strong frame.
The
said frame consists of two sides and a top and bottom cast in one
piece. A cam is placed between the two sides upon a fulcrum pin
or axis.
The first lever is fitted upon another pin, and its short end
works into the said cam. One of the shearing knives or blades is
attached to this lever, the other blade being fixed on the main frame near
the bottom of the machine. The second lever is connected to the long
end of the first lever by straps or links and to the main frame by other
straps. The third or hand lever is also connected to the second lever
by straps, and to the main frame by a bolt which forms the fulcrum of
the said hand lever. The straps or links are arranged in pairs, one on
each side of the machine. The operation of shearing is performed by
placing the iron or other metal to be cut between the knives and then
bearing down on the hand lever. The tire shrinker and stretcher consists
mainly of two blocks, one fixed and the other movable. The fixed block
is cast on the top of the machine and forms part of the main frame.
On the back of this block there is a projection against which the tire
rests, and which is provided with teeth at the end to keep the tire from
slipping. The movable block has a similar projection and is also
provided with teeth in the same manner as the other. The said moveable
block has a tooth on the under side working down into the cam, and this
block is moved in the operation of shrinking a tire by the hand lever
aforesaid. Upon each of the said blocks is a toothed eccentric for the
purpose of holding the tire while the movable block is being carried
towards the fixed block. The operation of stretching a tire is performed
by reversing the eccentrics and moving the lever in the other direction.
The socket for the punch is connected to a projecting piece of the cam
by a pin and passes through a guide. The die is placed under the said
punch and is confined in the main frame. Punches and dies of any
required form may be employed for ordinary punching, but in the
operation of "
gumming i saws the punch and die must be of a form
suitable for that purpose.
A guide is cast on the main frame near the
extremity of the long arm of the first lever to prevent displacement of
the said lever in the operation of cutting. A concave projection is cast
on the main frame, and a corresponding convex projection is cast og
"

page_text: otherwise fixed on the first lever.
These projections are arranger
opposite to each other, and are employed for bending iron or other mets!
into any required form.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Robert Lake in the Great Seal l'atent
Office on the 20th November 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the "International Patent Office," No. S, Southampton
Buildings, Chancery Lane, London, Consulting Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-first day of May, in the year of
our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Robert Lake, Her special
license that I, the said William Robert Lake, my executors, adminis-
trators, and assigns, or such others as I, the said William Robert
Lake, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Creat
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "AN IMPROVED MACHINE FOR SHEARING, PUNCHING, BENDING, AND OTHERWISE
WORKING METAL AND METALLIC ARTICLES," upon the condition (amongst
others) that I, the said William Robert Lake, my executors or adminis-
trators, 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 1, the said William Robert Lake, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement:-

page_text: The said Invention relates mainly to a peculiar combination of levers
which are adapted to effect the operations of shearing, punching, and
bending iron and other metals, shrinking and stretching tyres, and
gumming" (or cutting between the teeth of) saws.
"
In my machine the said levers are arranged in combination with a cam,
and all of the parts are mounted upon a strong frame.
The said Invention is illustrated in the accompanying Drawing, of
which Figure is a side elevation shewing the arrangement of levers with
the punching, shearing, and other devices; Figure 2 is a plan of the top
of a portion of the same.
The main frame of the said machine A, consisting of the two sides and
the top and bottom of the machine, is cast in one piece, the cam B being
placed between the two sides and hung on the pin C. The first lever D
works into the said cam, and is hung on the pin E, the knife F for
shearing being attached to this lever and the knife to the main
frame A. The second lever G is connected to the first lever D by the
straps H, and to the main frame A by the straps H. The third or hand
lever is connected to the lever G by the straps J and also to the main
frame A by the bolt K. The straps H, H, and J are in pairs, one on
each side of the machine. The operation of shearing is performed by
placing the metal to be cut between the knives F and F, and then
bearing down on the hand lever 1. The tyre shrinker and stretcher
consists of a block L, which is part of the main frame A. On the back
of this block there is a projection M, against which the tyre rests, and
which is provided with teeth at the end so as to keep the tyre from
slipping; there is also a movable block N which has a similar projection O,
and which is also provided with teeth in the same manner as the other.
The said movable block N has a tooth P on the under side working down
into the cam B, and is moved in the operation of shrinking a tyre by the
hand lever 1. Upon each of the blocks L and N is a toothed eccentric Q
for the purpose of holding the tire while the block N is being carried
towards the block L. The operation of stretching a tyre is performed by
reversing the eccentrics Q and carrying the lever the other way. The
punch socket R is connected to the cam B by the pin S, and passes
through the guide T, the die being confined in the main frame A. The
operation of "gumming" saws is performed by a punch and die made
especially for that purpose. A guide V is cast on the main frame A, so
as to keep the lever D from being forced off in the operation of cutting.

page_text: A concave projection W which is cast on the main frame A projects
about three inches therefrom, and the corresponding convex projection X
is cast on the lever D. These parts are used for bending iron into any
required form.
Having thus fully described my said Invention as communicated to
me by my foreign correspondent, I claim,-
First. The combination of levers, substantially as herein shewn and
described.
Second. The adaptation of the said levers to the purposes of shearing,
punching, bending, saw cutting, and tyre upsetting, substantially in the
manner described.
In witness whereof, I, the said William Robert Lake, have hereunto
set my hand and seal, this Twentieth day of November, in the
year of our Lord One thousand eight hundred and sixty-nine.
WILLIAM ROBERT LAKE. (L.S.)
Witness,
HARRY J. GEDGE,
Clerk to Messrs. Haseltine, Lake, & Co.,
S, Southampton Buildings,
London.