IMPROVEMENTS IN APPARATUS OR APPLI- ANCES FOR FORGING OR SHAPING BOLTS, NUTS, RIVETS, AND LIGHT WORK
Year: 1878

page_text: LETTERS PATENT to Samuel Gallie, of Birkenhead, in the County of Chester,
Engineer, for the Invention of "IMPROVEMENTS IN APPARATUS OR APPLI-
ANCES FOR FORGING OR SHAPING BOLTS, NUTS, RIVETS, AND LIGHT WORK."
Sealed the 7th February 1879, and dated the 19th August 1878.
PROVISIONAL SPECIFICATION left by the said Samuel Gallie at the Office
of the Commissioners of Patents on the 19th August 1878.
SAMUEL GALLIE, of Birkenhead, in the County of Chester, Engineer. "IMPROVE-
MENTS IN APPARATUS OR APPLIANCES FOR FORGING OR SHAPING BOLTS, NUTS,
RIVETS, AND LIGHT WORK."
The object of this Invention is to provide apparatus or appliances whereby light
forgings, such as bolts, nuts, and rivets, shall be rapidly and efficiently forged or
reduced to the required shape.
For the above purpose I employ a hammer free to move to and fro, and give
motion to such hammer by means of a crank, excentric, or other suitable appliance,
secured on or to a revolving shaft. The revolving shaft works in bearings so
arranged that the whole of the working parts are free to be moved away from an
anvil or like appliance, and thereby allow of the introduction and removal of work
without arresting the motion of such hammer. The said working parts are held
up to the work by means of springs or weights, and are moved away when
necessary by means of a treadle or other suitable appliance.
The following is a description of mechanism suitable for carrying out my Inven-
tion On a base plate carrying an anvil four columns are secured; two of the
columns carry a piece which serves as a guide for the hammer shaft; the said
columns also carry sliding bearings in which a crank shaft revolves. The crank
pin is fitted with a sliding block which works in a yoke attached to the hammer
Unies Gl

page_text: shaft, and which is guided in its motion by the other two columns. The bearings
for the crank shaft and the yoke are connected. together by springs so as to prevent
undue strain on the crank shaft when the blow is being given. The working parts
above described are forced downwards by means of springs or weights acting on the
crank shaft bearing, and a treadle and lever are employed to raise the said parts out
of action when required. The crank shaft is driven by a belt and pulley.
The essential feature of novelty in my Invention is making the working parts
return automatically to position to do their work when left free.
It will be obvious that the working parts and framework may be constructed
and arranged in many ways.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Gallie in the Great Seal Patent Office on the 19th February
1879.
SAMUEL GALLIE, of Birkenhead, in the County of Chester, Engineer.
"IMPROVE-
MENTS IN APPARATUS OR APPLIANCES FOR FORGING OR SHAPING BOLTS, NUTS,
RIVETS, AND LIGHT WORK,"
The object of this Invention is to provide apparatus or appliances whereby light
forgings, such as bolts, nuts, and rivets, shall be rapidly and efficiently forged or
reduced to the required shape.
For the above purpose I employ a hammer free to move to and fro, and give
motion to such hammer by means of a crank, excentric, or other suitable appliance
secured on or to a revolving shaft. The revolving shaft works in bearings so
arranged that the whole of the working parts are free to be moved away from
an anvil or like appliance, and thereby allow of the introduction and removal of
work without arresting the motion of such hammer. The said working parts are
held up to the work by means of springs or weights, and are moved away when
necessary by means of a treadle or other suitable appliance.
DESCRIPTION OF THE DRAWINGS.
Figs. 1 and 2 are elevations partly in section illustrative of apparatus or appli-
ances constructed under my Invention; 1, base plate carrying the shaft 2 which
supports the rotating anvils 3; 4, stationary frame secured to 1. The said sta-
tionary frame 4 is provided with guides 5 through which the hammer shaft 6
works. Motion is given to the hammer shaft by means of the crank 7 which gives
motion to the sliding block 8 working between the guides 9 on the hammer shaft 6.
The crank and shaft 7 with the operating pulleys and fly-wheel 10 are supported
in bearings 11 on the framework 12. The framework 12 is held in position by
means of the springs 13 and 14, which act on the rods 15 and 16 secured to the
said frame 12; 17, excentrics secured to the shaft 18. The said excentrics vary by
their position the tension of the springs 14 so as to allow of the position of the
framework 12, and with it the position of the crank shaft and hammer being
altered at will. Motion is given to the said excentrics by means of pulleys 19, or
by means of a treadle or suitable appliance.
It will be seen that the hammer will move to and fro as long as the crank shaft
7 is caused to revolve, and that the position of motion will be nearer or, further
from the anvil 3, according as the tension of the springs 14 are increased or
diminished. As the tension of the said springs always acting to draw the working
parts towards the anvil, the said working parts are moved away therefrom
when necessary by the action of the excentric 17, assisted by the resilience of the
springs 13.
It will be obvious that apparatus or appliances under my Invention may be
constructed and arranged in many ways as long as care is taken to so arrange the
parts that springs or their equivalents are always acting to draw the hammer
towards the anvil.
Having now described my said Invention in such manner that others will be
enabled to carry my improvements into effect, I claim the improvements in forging
or shaping apparatus or appliances, substantially as herein set forth.
In witness whereof, I, the said Samuel Gallie, have hereunto set my hand
and seal, the Eighteenth day of February, in the year of our Lord One
thousand eight hundred and seventy-nine.
SAMUEL GALLIE. (L.S.)