IMPROVEMENTS IN STONE BREAKING AND CRUSHING MACHINES
Year: 1875

page_text: LETTERS PATENT to William Пaden, of Cliff Hill Quarries, Markfield,
near Leicester, in the County of Leicester, Manager, for the Invention
33
PROVISIONAL SPECIFICATION left by the said William Haden at the
Office of the Commissioners of Patents, with his Petition, on the
31st July 1875.
I, WILLIAM HADEN, of Cliff Hill Quarrics, Markfield, near Leicester,
in the County of Leicester, Manager, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN STONE BREAKING AND CRUSHING
MACHINES," to be as follows, that is to say.
My Invention has for its object increasing the durability in wear of
the part known as the "swing Jaw" of stone breaking and crushing
machines, thereby effecting a great saving in the expenso ordinarily
incurred in refitting or replacing the worn out swing jaws. Instead
of forming the swing jaw with vertical ribs on one side only, and

page_text: partly up such side sufficient to work with the fixed jaw, I form the
vertical ribs on both sides of the swing jaw, and up the entire length
thereof so that the swing jaw can be reversed, and a fresh wearing
surface presented four times, instead of the one wearing face only, as
usually employed.
I also add to the improved swing jaw a second pin hole on the
reversible end, and place the ring for the spring on the top of each end
of the swing jaw, and in addition to the usual cubing pieces at the
bottom of the swing jaw between the vertical ribs I form at the ends of
the top and bottom of the improved swing jaw and on both sides thereof
additional cubing picces to prevent any large pieces of stone escaping
though at the ends of the jaws into the screen until properly cubed or
broken.
SPECIFICATION filed in pursuance of the conditions of the Letters
Patent, and of an Order of the Lord Chancellor, by the said William
Haden in the Great Scal Patent Office on the 12th April 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
UADEN, of Cliff Hill Quarries, Markfield, near Leicester, in the County
of Leicester, Manager, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Hor
Letters Patent, bearing date the Thirty-first day of July, in the year
of our Lord One thousand cight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Ier heirs and suc-
cessors, give and grant unto me, the said William Haden, Her special
license that I, the said William Haden, my executors, administrators,
and assigns, or such others as I, the said William Haden, my executors,
administrators, and assigns, should at any tune agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for " IMPROVEMENTS IN
STONE BREAKING AND CRUSHING MACHINES," upon the condition (amongst
others) that I, the said William Haden, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the

page_text: said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office on or
before the Thirteenth day of April One thousand eight hundred and
seventy-six.
NOW KNOW YE, that I, the said William Haden, do hereby declaro
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement :-
:-
My Invention has for its object increasing the durability in wear of
the part known as the swing jaw of stono breaking and crushing
machines, thereby effecting a great saving in the expense ordinarily
mcurred in refitting or replacing the worn out swing jaws. Instead of
forming the jaw with vertical 1ibs on one side only, and partly up such
side sufficient to work with the fixed jaw, I form the vertical ribs on
both sides of the jaw and up the entire length thereof, so that the
jaw can be reversed, and fresh wearing surfaces presented four times
instead of once or twice only, as usually employed.
I also add to the improved swing jaw a second pin hole on the
reversible end, and place the ring for the spring on the top of each end
of the swing jaw, and in addition to the usual cubing pieces at the
bottom of the jaw between the vertical ribs I form at the ends of the
top and bottom of the improved jaw and on both sides thereof additional
cubing picces to prevent any large pieces of stone escaping through at
the ends of the jaw into the screen until properly cubed or broken.
I will now proceed to describe my Invention more fully in detail by
aid of the accompanying Drawings, reference being had to the letters
and figures marked thercon.
Figure 1 is an elevation of the part known as the swing jaw of stone
breaking and crushing machines. 1 form the swing jaw, Figure 1, with
vertical ribs (a) on both sides, shown more clearly in Figures 2 and 3,
and up the entire length thereof, and divided in the manner shown in
Figure 1.
Figures 2 and 3 shew more clearly the projections of the vertical ribs,
the middle ones (6) projecting slightly in front of the end ones (c), and
in addition to the usual cubing pieces at the ends of the swing jaw
between the vertical ribs I form other cubing pieces (d) to prevent any
large pieces of stone escaping into the screen until properly broken.

page_text: I also add to the improved swing jaw a second pin hole (e), Figure 4,
on the reversible end, and also the ring for the spring on the top of cach
end of the swing jaw, Figure 1 Figure 5 is a plan from the top showing
the improved swing jaw applied to the machine ready for use. By this
arrangement the jaw may be reversed, and a fresh wearing surface
presented four times instead of once or twice only as usually employed.
Having thus described the object and nature of my said Invention,
and the manner in which the same is to be carried into effect, I claim,
forming the part known as the swing jaw of stone breaking and crushing
machines with vertical ribs on both sides and up the entire length
thereof, and also the additional cubing pieces at both ends, as described
and herein more fully set forth and specified.
In witness whereof, I, the said William Haden, have hereunto
set my hand and seal, this Eighth day of March, in the year of
our Lord One thousand eight hundred and seventy-six.