IMPROVEMENTS IN THE VALVE MOTION OF STEAM HAMMERS
Year: 1884

page_text: PROVISIONAL
SPECIFICATION.
I GILBERT GLOSSOP, of Heeley Bridge Foundry Sheffield in the County of
York Steam Hammer Maker do hereby declare the nature of my said Invention
for IMPROVEMENTS IN THE VALVE MOTION OF STEAM HAMMERS, to be as
follows:-
My Invention of improvements in the valve motion of steam hammers, has for
its object, to reduce the number of parts usually required for valve motions that
are worked from or by the tup, and thereby reduce the wear and tear, and to
obtain a more direct action.
In carrying out my Invention, I attach a vibrating slide rod to one side of the
tup, and preferably near to one of the edges, and passing through a short barrel
which forms part of a tumbler or crank. This tumbler is carried upon the end of
an eccentric shaft which projects through the body or standard of the hammer,
and is connected on the opposite side of the standard to a lever and handle, by
means of which, and the eccentric shaft, the tumbler may be raised and lowered, to
the extent of the eccentricity of the shaft.
The crank or short arm which forms part of the tumbler is connected to the
valve spindle by means of a short hollow link attached to the spindle; the end of
the crank or short arm being rounded to form a knuckle joint which works in
sliding gluts placed in the hollow link.
By this arrangement I dispense with a connecting rod, a lever, and a short stud.
I claim the direct acting arrangement of the valve motion above described.
ROBT F. DRURY,
Agent for the Applicant.

page_text: I GILBERT GLOSSOP of Heely Bridge Foundry Sheffield in the County of
York Steam Hammer Maker do hereby declare the nature of my Invention for
IMPROVEMENTS IN THE VALVE MOTION OF STEAM HAMMERS and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement, that is to say :-
My Invention of improvements in the valve motion of steam hammers, has for
its object, reducing the number of the working parts of such motions, thereby
simplifying the construction, reducing the cost and rendering the action. more
direct and effective.
And in order that my Invention may be clearly defined, and my Specification
fully understood, I shall refer to the annexed Sheet of illustrative Drawings in
which the same figures of reference will indicate similar parts in all the Figures.
Fig. 1. is an elevation of a steam hammer fitted with my improved arrangement
of valve motion.
Fig. 2, is a plan of the same motion.
In carrying out my Invention, I attach a vibrating slide-rod A, to one side of
the tup B, by means of a stud which passes through the tup, preferably in the
position shown in the Drawing, and I pass the slide-rod through a short barrel, or
tubular slide: C. which forms part of a tumbler or crank.
A similar tubular slide or bearing D forms the support of the tumbler, and, fits
upon the eccentric or crank end E of the shaft F, which usually passes through,
and is carried by the body or standard of the hammer, and is actuated by a
hand lever G.
The adjustment is effected by altering the position of the handle G, which may
be effected either while the hammer is at rest, or when it is in motion; this
movement' either raises or lowers the eccentric pin E, and thus alters the position
of the fulcrum of the tumbler, and with it the valve spindle I.
Projecting from the tumbler D, is a short arm H, keyed upon the tumbler by
preference, in order that it may be adjusted to suit the position of the valve rod;
this arm is for the purpose of actuating the valve rod to which it is connected by
means of an open link J, attached to the valve rod by a screw thread and
locknut K. The rounded end of the arm H, works in a solid side block L,
having an opening next the arm and sliding to and fro in the hollow link. In
the above described arrangement of a valve motion for steam hammers, as compared
with those of usual construction, I dispense with a connecting rod, a lever, a short
stud and two joint pins.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I wish it to be
understood, that I do not claim broadly, the use (in valve-motions for steam
haminers) of a tumbler motion actuated to the tup; but I declare that what I do
claim is :-
1st The arrangement and combination of the various constituent parts A. C. D.
E. H. J. L. forming a valve motion for steam hammers, substantially as herein-
before described and illustrated.

page_text: 2nd The use in valve motions of steam hammers of a slide block L in which the
top and bottom bearing surfaces are connected by a continuity of the metal, or a
back plate, substantially as before described and illustrated.
T
11
100
1
100
ROBT F. DRURY,
Agent for the Applicant.