IMPROVEMENTS IN MACHINERY FOR MAKING RIVETS, BOLTS, NUTS, AND OTHER SIMILAR ARTICLES
Year: 1855

page_text: LETTERS PATENT to Samuel Greenwood, of Sunderland, in the County of
Durham, Engineer, for the Invention of "IMPROVEMENTS IN MACHINERY
FOR MAKING RIVETS, BOLTS, NUTS, AND OTHER SIMILAR ARTICLES."
Scaled the 25th September 1855, and dated the 3rd April 1855.
PROVISIONAL SPECIFICATION left by the said Samuel Greenwood at
the Office of the Commissioners of Patents, with his Petition, on the
3rd April 1855.
I, SAMUEL GREENWOOD, of Sunderland, in the County of Durham, Engineer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY FOR MAKING RIVETS, BOLTS, NUTS, AND OTHER SIMILAR ARTICLES," to
be as follows:-
My Invention consists of certain arrangements of machinery whereby a
piece or strip of iron or other suitable metal on being fed into the machine is
first cut of a proper length; after being so cut, it falls down a forked spout
or channel upon dies or moulds. The moulds or dies are carried upon a
horizontal platform made to rotate. The machinery is so arranged as to cause
two plungers, fitted with moulds or dies corresponding with those upon the

page_text: rotating platform, to descend, when the platform presents the moulds filled
with the iron which has been conducted thereto by the spout before named
immediately under them. After the rivet, nut, or other article has been
formed by the moulds and dies, a rod is caused to rise from the bottom of the
platform, and remove the finished article from the moulds. The spout or
channel is forked at bottom, and is thus made to conduct two blanks or pieces
of metal into two separate moulds, which on the rotation of the mould plat-
form come under the two plungers and dies before mentioned, and thus at
each stroke of the machine two rivets, nuts, or other similar articles are
formed and pushed out from the moulds, which again come under the mouths
of the forked spout to receive two blanks, and the operations are repeated.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Greenwood in the Great Seal Patent Office on the
3rd October 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
GREENWOOD, of Sunderland, in the County of Durham, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of April, in the year of our Lord One
thousand eight hundred and fifty-five, in the eighteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Samuel Greenwood, Her special licence that I, the said Samuel Greenwood, my
executors, administrators, and assigns, or such others as I, the said Samuel
Greenwood, my executors, 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 Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR
MAKING RIVETS, BOLTS, NUTS, AND OTHER SIMILAR ARTICLES," upon the condition
(amongst others) that I, the said Samuel Greenwood, by an instrument in
writing under my hand and seal, 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.

page_text: NOW KNOW YE, that I, the said Samuel Greenwood, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings hereunto annexed,
that is to say:-
My Invention consists of certain arrangements of machinery whereby a
piece or strip of iron or other suitable metal on being fed into the machine is
first cut of a proper length; after being so cut, it falls down a forked spout
or channel upon dies or moulds. The moulds or dies are carried upon a
horizontal platform made to rotate. The machinery is so arranged as to
cause two plungers, fitted with moulds or dies corresponding with those upon
the rotating platform, to descend, when the platform presents the moulds filled
with the iron which has been conducted thereto by the spouts before named
immediately under them. After the rivet, nut, or other article has been
formed by the moulds and dies, a rod is caused to rise from the platform, and
remove the finished article from the moulds. The spout or channel is forked
at bottom, and is thus made to conduct the blanks or pieces of metal into two
separate moulds, which on the rotation of the mould platform come under
the two plungers and dies before mentioned, and thus at each stroke of the
machine two rivets, nuts, or other similar articles are formed and pushed out
from the moulds, which again come under the mouths of the forked spout to
receive two blanks, and the operations are repeated. In the Drawings here-
unto annexed I have shewn the manner in which I carry my Invention into
effect.
Figure 1 represents a side elevation, Figure 2 an end view, and Figure 3 a
plan, of a machine for making rivets, bolts, nuts, and other similar articles
constructed according to my improvements.
A, A, is the sole or basement plate, and B, B,. the framework of the
machine; C, C, are two pairs of feeding rollers, mounted respectively upon
the shafts C, C2, turning in brasses in the framework B; D is a ratchet
wheel, keyed upon the upper shaft C¹; and D' is a paul, which takes into the
teeth of the ratchet, and is for the purpose of giving motion to the feed
rollers; E, E, are the strips or rods of metal out of which the rivets, bolts,
nuts, or other similar articles are to be formed; E¹ is a stop, which can be
regulated by the screw a to any distance required, according to the lengths
desired to be cut from off' the ends of the rods E, E; F is a cutter, which is
caused to rise and fall so as to sever off the lengths from the rods E, E;
G is a forked spout, down which the blanks or pieces cut off the rods fall, and

page_text: are by then guided and fed into the dies H, H. These dies H are arranged
in pairs around the revolving platform I. The shape of these dies corresponds
to the shape of the article to be formed therein. J, J, are two plungers or
stampers, which have a rising and falling motion imparted to them by means
of excentrics K, K, keyed upon the main shaft L. These plungers or
stampers are formed with dies in their lower ends, and serve to strike and
impress upon the metal in the lower dies the shape or head of the intended
rivet, bolt, nut, or other similar article. M, M, (in dotted lines) are rods,"
which pass up into the lower dies, and serve, after the rivets, bolts, nuts, or
other similar articles have been formed, to remove them from the dics, and
prepare them for the reception of fresh blanks from the spout G. The
manner in which I actuate the different parts of this machine is as follows:-
N is a shaft, on which are the fast and loose pullies O, O; P is a fly wheel;
Qis a spur pinion, keyed upon the shaft N, and gearing into the toothed
wheel R, keyed upon the shaft L; S is a bevil wheel also upon the shaft L,
which gears into a bevil wheel S¹, keyed upon the vertical shaft S³, fitted into
the centre of the revolving platform I. By these means the platform is
caused to rotate and alternately present the dies containing the blanks beneath
the dies in the stampers J, to receive the requisite blow to give the desired
shape to the head of the bolt, rivet, nut, or other similar article. T is a lever,
centred upon a pin c in the framework, one end of which is slotted out and
fits over a pin d, projecting from the plunger or stamper J. The opposite end
of this lever is also slotted, and receives the lower end of the rod T", the
This
opposite end of which is attached to a lever U, having its fulcrum at e.
lever U supports the paul D', which gives motion to the ratchet wheel D by
the rising and falling motion of the stamper J, and thus causes the rollers C, C,
to revolve and feed in the requisite lengths of the rods E, E, to form the
intended rivet, bolt, nut, &c. V is another rod, connected at its lower end to
the lever T, and at its upper end to the lever V¹, centred at f. This lever V₁
supports the knife or cutter F, and by the downward motion or fall of the
stamper J serves to cut off the required lengths of rods, which then fall into
the spout G, which delivers the pieces into the lower dies H. W is an
excentric upon the end of the shaft L, which has affixed to its strap the
rods X, X, the lower ends of which are attached to the cranks Y, Y, on
the ends of the shafts Z, Z, which carry the rods M, M, for removing the
finished rivets, bolts, nuts, or other similar articles from the lower dies H.
It is obvious that the shape of the upper and lower dies may be altered to
suit any desired form to be given to rivets, bolts, nuts, or other similar
articles.

page_text: And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that what I claim is, the
improved arrangement and combination of machinery for making rivets, bolts.
nuts, and other similar articles, as herein-before described, and represented in
the Drawings hereunto annexed.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that what I claim is, the
improved arrangement and combination of machinery for making rivets, bolts,
nuts, and other similar articles, as herein-before described, and represented in
the Drawings hereunto annexed.
In witness whereof, I, the said Samuel Greenwood, have hereunto set my
hand and seal, this Second day of October, One thousand eight
hundred and fifty-five.
nuts, and other similar articles, as herein-before described, and represented in
the Drawings hereunto annexed.
In witness whereof, I, the said Samuel Greenwood, have hereunto set my
hand and seal, this Second day of October, One thousand eight
hundred and fifty-five.
SAMUEL GREENWOOD. (L.S.)
SAMUEL GREENWOOD. (L.S.)