AN IMPROVED MACHINE POR POINTING OR DRAWING DOWN RAILWAY SPIKES, AND WHICH SAID IMPROVED MACHINE IS ALSO APPLICABLE FOR FORMING OR DRAWING DOWN THE SHANKS OF ORDINARY SPIKES AND OTHER ARTICLES OF IRREGULAR SHAPE
Year: 1865

page_text: PROVISIONAL SPECIFICATION left by Moses Bayliss at the Office of the
Commissioners of Patents, with his Petition, on the 1st March 1865.
I, MOSES BAYLISS, of the Firm of Bayliss, Jones, and Bayliss, of Wolver-
hampton, in the County of Stafford, and Gracechurch Street, in the City of
London, Bolt, Nut, Iron Hurdle, and Fencing Manufacturers, do hereby declare
the nature of my said Invention for "AN IMPROVED MACHINE POR POINTING
OR DRAWING DOWN RAILWAY SPIKES, AND WHICH SAID IMPROVED MACHINE IS ALSO
APPLICABLE FOR FORMING OR DRAWING DOWN THE SHANKS OF ORDINARY SPIKES AND
OTHER ARTICLES OF IRREGULAR SHAPE," to be as follows (that is to say):-
This I purpose effecting by two eccentric rolls, geared together, so that
their expanding and contracting surfaces shall simultaneously operate on the
iron intended to be drawn out by this process; and I also use lateral or side
rolls, that work by contact with the vertical rolls, and the iron which is being
reduced. The principal feature of novelty consists in advancing and retiring
the two side rolls to and from their work, so as to relieve or remove their
pressure, thereby permitting a momentum power to be acquired by the
revolution of a fly wheel with such machine, hereafter referred to, for as soon
as the pinch consequent on the pressing or drawing out of the metal is
passed, which may not occupy above one-eighth of the revolution of the rolls
its free action through the other seven-eighths permits the acquirement of
the momentum of the fly wheel.

page_text: As a general description I will state that on a solid base I secure or cast
with the same two vertical standards or carriages, in which are fitted top
and bottom shafts of corresponding size, and geared together by corresponding
spur wheels. The lower shaft has a reduced end for carrying the lower
eccentric roll, and with a further extended reduced part tapped and fitted
with a strong angular nut, by which the roll is secured. The top shaft at the
end that extends sufficient to receive the top eccentric roll also receives a
lateral cam, the said cam and roll being secured on the shaft as in the former
case with a strong nut. Between the two uprights or standards another
lateral cam is fixed on the top shaft, and between the two shafts and each
side of the eccentric rolls carriages work in grooves for carrying the side rolls,
which carriages are advanced and retired from their work by the lateral cams
herein before named. A portion of the top shaft extends beyond the spur
wheel before referred to for receiving a large spur wheel, which gears with
a pinion fixed on the main driving shaft, on which is placed the fly wheel
and driving pulleys fixed in a suitable carriage. From the relative size of
the pinion fixed on the driving shaft, and the large spur wheel fixed on the
top shaft carrying the eccentric rolls, the necessary speed according to
the power by.which the machine is actuated is arranged according to require-
ments.
The general details may be modified as required, and the thickness of the
eccentric rolls varied, or they may be laterally eccentric according to require-
ments, the lateral cams being also arranged for advancing and retiring the
side rolls as required.