An' Improvement in or applicable to Apparatus for Crushing Stones, Ore, and the like.
Year: 1896

page_text: Date of Application, 13th Nov., 1896
Complete Specification Left, 9th Aug., 1897-Accepted, 11th Sept., 1897
PROVISIONAL SPECIFICATION.
An' Improvement in or applicable to Apparatus for Crushing Stones,
Ore, and the like.
We JAMES EDWARD BROADBENT, and JOSEPH BROADBENT, both of Phoenix Iron
Works, Stalybridge, in the County of Chester, Managers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to that kind of apparatus for crushing stones, ore, and
the like, which consists mainly of a pivotted jaw or jaws worked by a rod or rods
connected to a pitman which is raised and dropped by an eccentric upon a con-
venient shaft, and the object of the invention is to improve the lubrication of the
eccentric in the step in the pitman in which it works.
For this purpose instead of making the lower half of the aforesaid step in the
pitman solid as usual, we make it in the form of a hollow shell enclosing between
its ends the ends of the eccentric, but all around the lower part of the latter leaving
a space in which oil may be held.
We provide also suitable means for keeping this hollow step in place in the
pitman, and for this purpose we propose to use a wedge shaped cotter (or cotters)
which passes (or pass) through the pitman and raises (or raise) the hollow step
against the packing between it and the upper step. Each cotter also passes into a
groove recess or its equivalent in the hollow step, so that the latter cannot move
endwise. Other means may however be provided for holding the hollow step in
place.
Thus the eccentric will always revolve in a bath or well of oil and will be
constantly lubricated, surplus oil being returned to the hollow step or bath and
not escaping at the ends of the eccentric as is at present the case, when ordinary
oil cups or the like are used for lubricating the eccentric.
101 1
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.
An Improvement in or applicable to Apparatus for Crushing Stones,
Ore, and the like.
We JAMES EDWARD BROADBENT, and JOSEPH BROADBENT, both of Phoenix Iron
Works, Stalybridge, in the County of Chester, Managers, 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:-
This invention relates to that kind of apparatus for crushing stones, ore, and

page_text: the like, which consists mainly of a pivotted jaw or jaws worked by a rod or rods
connected to a pitman which is raised and dropped by an eccentric upon a con-
venient shaft, and the object of the invention is to improve the lubrication of the
eccentric in the step in the pitman in which it works.
Our invention will be readily understood on reference to the accompanying
drawings.
Fig. 1 is an end elevation of the step end of a pitman with our invention applied
thereto. Fig. 2 is a side elevation of the said pitman, and Figs. 3 and 4 are
respectively transverse and longitudinal sections of the step end of the same.
a is the pitman, b is the shaft, and c the eccentric which is formed thereon as
shewn, d is the upper half of the step in the pitman.
Instead of making the lower half of the aforesaid step in the pitman a solid
as usual, we make it in the form of a hollow shell enclosing between its ends
the ends of the eccentric c, which is in the form of a boss as shewn, but leaving
a space in which oil may be held all round the lower part of the said eccentric.
We provide also suitable means for keeping this hollow step d¹ in place in the
pitman a, and for this purpose we propose to use a wedge shaped cotter e (or cotters)
which passes (or pass) through the pitman and raises (or raise) the hollow step d
against the packing d between it and the upper step. Each cotter e also passes
into a groove recess or its equivalent in the hollow step d¹ (see Fig. 4) so that the
latter cannot move endwise. Other means may however be provided for holding
the hollow step d' in place.
Thus the eccentric will always revolve in a bath or well of oil and will be con-
stantly lubricated, surplus oil being returned to the hollow step or bath d¹ and
not escaping at the ends of the eccentric c, as is at present the case when ordinary
oil cups or the like are used for lubricating the eccentric.
Oil may be supplied through the openings to the upper half of the step d,
and find its way into the lower part d¹.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what we
claim is:-
The combination with the pitman of a lower step made to hold oil and embrace
the ends of the eccentric boss on the shaft substantially as hereinbefore described
and illustrated by the annexed drawing.
Dated this Sixth day of August 1897.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.