Improvements in Stone-breaking Machinery..
Year: 1896

page_text: Date of Application, st Aug., 1896-Accepted, 5th Sent., 1896:
Improvements in Stone-breaking Machinery..
We, ALFRED PASQUET, JOHANNIS PIERSON, and OTTHO GÉRARD PIERSON,
all of 54 Faubourg Montmartre, Paris, France, Engineers, do hereby declare the
nature of this invention 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:
This invention relates to stone-breaking machinery of the kind in which the.
stones are broken as they descend between fixed jaws and reciprocating jaws
which are inclined to the fixed jaws, and the object is to economise power and
obtain other practical advantages by combining the motor directly with the
operating mechanism, the machine being thereby rendered self contained and
compact.
A machine as constructed with the improvements is shown on two accompanying.
sheets of explanatory drawings, Figure 1, on Sheet 1, being a longitudinal vertical
section, and Figure 2, on Sheet 2, a transverse vertical section. In these drawings.
the same reference letters are used to mark the same or like parts wherever they
are repeated; and parts not hereinafter specially referred to are to be understood
as being of an already known construction.
The fixed and movable jaws, A, B, are arranged in a usual manner within a
massive castiron framing, C, formed in one piece, the movable jaws, B, being acted
on by steel toggle plates, D, which are themselves acted on by bosses, E, rocking
on a shaft, F, carried in bearings bolted to the underside of the framing, C, at the
end thereof further from and lower than the part where the jaws, A, B, are placed..
The motor is of the Westinghouse or similar type, having the crank shaft; G, and
other parte enclosed in a box or casing, H, which is bolted down upon the
framing, C, at the part above the shaft, F. The motor shown in the drawings.
comprises two steam cylinders, J; the motor details may however be varied in
different cases. The crank shaft, G, as shown, is made with two diametrically
opposite cranks; and the cheeks, K, are, for the purposes of the present invention,.
shaped as eccentrics, the two cheeks of each crank forming a pair of equal
eccentrics, and having fitted upon them a pair of rings or "straps" L. Each pair-
of eccentric rings, L, is by a pin, M, jointed to the upper end of a rod, N, which
works through a stuffing box, P, in the bottom of the casing, H, and which has
fixed to its lower end a fork piece, Q, jointed by a pin, R, to a short massive-
lever, S, formed in the same piece with one of the rocking bosses, E, on the
shaft, F. With the improved construction which is shown in the drawings and
has been described, the crank shaft, G, of the motor acts in a very direct manner-
on the rocking bosses, E, which by means of the toggle plates, D, move the
movable stone-breaking jaws, B, towards the fixed jaws, A.
Having now particularly described and ascertained the nature of the said inven-.
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination of parts constituting the improved stone-breaking machine,.
the motor and operating parts being conjoined substantially as hereinbefore
described.
2. The fixing upon the main framing of a stone-breaking machine a casting-

page_text: containing motor details arranged to act directly on the stone-breaking mechanism,
substantially as herein before described.
3. In a combined motor and stone-breaking machine; transmitting the power
from the crank shaft by means of the crank cheeks shaped as eccentrics and fitted
with pairs of rings or "straps" substantially as herein before described.
Dated this Thirty-first day of July 1896.
EDMUND HUNT,
Applicants' Agent..