Improvements in Stone Breaking Machines.
Year: 1889

page_text: Date of Application, 14th Jan., 1889
Complete Specification Left, 25th Sept., 1889-Accepted, 2nd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Stone Breaking Machines.
AUSTIN HILL Engineer 19 Watling Street Leicester do hereby declare the nature
of this invention to be as follows:-
My Improvement more particularly applies to those stone Breakers on the Jaw
principle which receive their motion direct from the eccentric, working in the top
of the stock or swing Jaw and hung upon the top of the frame of the machines.
Hitherto the weight of the stock or swing Jaw banging upon the eccentric shaft
has caused an undue amount of friction and wearing away of the bearings, in the
stock or swing Jaw, and a corresponding wear upon the eccentric shaft. To obviate
this, in place of the old toggle plate or hose piece, I fix on the front of the rocking
levers a segment of gearing, and a corresponding segment in the back of the bottom
of stock or, swing Jaw, and by means of adjustable links. or other suitable con-
nections or couplings, I couple the segment on front of rocking lover, to suitable
bosses or bearings at the top of the stock or swing Jaw, which gives the stock or
swing Jaw a self acting and lifting motion, by this means I take the weight off the
eccentric shaft, and reduce the friction and wear of bearings and shaft to a
minimum.
10 1000.
COMPLETE SPECIFICATION.
Improvements in Stone Breaking Machines.
AUSTIN HILL Engineer 19 Watling Street Leicester 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 :-
My improvement more particularly applies to stone Breakers on the Jaw principle
which receive their motion direct from the eccentric shaft working in the top of
the stock or swing Jaw and hung upon the top of the frame or bed of machine.
Hitherto the weight of the stock or swing Jaw hanging upon the eccentric shaft
has caused an undue amount of friction and wearing away of the bearings in the
swing Jaw and frame, and a corresponding amount of wear upon the eccentric
shaft. To obviate this I fix on the front of the rocking lever, a segment, or suitable
nose piece, with lugs. A (see drawing in Fig. 1) to fit in groove B (see drawing
in Fig. 1) or grooves at the back of swing Jaw. To nose piece A (see drawing
Fig. 6) I attach a rod-C-(see drawing Fig. 6) or suitable links or connections
with springs D (see drawing Fig. 1) which pass through or are connected with cross
head E (see drawing in Fig. 1) or brackets at top of frame or other suitable
place.
By these means I get a self lifting motion to the stock or swing Jaw which takes
the weight off the eccentric shaft, and reduces the friction and wear and tear to a
minimum.

page_text: Having now particularly described and ascertained the nature of my invention
and in what manner the same is performed-I do not claim any of the parts
separately which are well known-and in common use in machines of the type
forming the subject of the invention, but what I do claim is
The self Lifting motion to the stock or swing Jaw, by the novel mode of coupling
the Toggles nose piece, or rocking lever-to the top of frame or brackets in the
manner in which I have hereintofore mentioned.
Dated this 21st day of September 1889
AUSTIN HILL,
Engineer, 19, Watling Street, Leicester.