IMPROVEMENTS IN THE JAWS OF MACHINERY OR APPARATUS FOR BREAKING STONES AND OTHER HARD SUBSTANCES
Year: 1871

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn Fields,
in the County of Middlesex, Gentleman, for the Invention of
"IMPROVEMENTS IN THE JAWS OF MACHINERY OR APPARATUS FOR BREAKING
STONES AND OTHER HARD SUBSTANCES." -A communication from abroad
by Hugh Junor Browne, of Melbourne, in the Colony of Victoria,
Merchant, and Arthur Hope, of Prahran, in the same Colony,
Engineer.
PROVISIONAL SPECIFICATION left by the said John Henry Johnson
at the Office of the Commissioners of Patents, with his Petition,
on the 28th December 1871.
I, JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County
5 of Middlesex, Gentleman, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE JAWS OF MACHINERY OR APPARATUS
FOR BREAKING STONES AND OTHER HARD SUBSTANCES," a communication to me

page_text: In some cases in lieu of causing the flutings or channels to run into
ridges or projections as above described, it is proposed to incline their
direction laterally towards the bottom of the jaw.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Henry Johnson in the Great Seal Patent
Office on the 28th June 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of
Middlesex, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of December, in the
year of our Lord One thousand eight hundred and seventy-one, in the
35th year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Henry Johnson, Her special license
that I, the said John Henry Johnson, my executors, administrators, and
assigns, or such others as I, the said John Henry Johnson, my executors,
administrators, or assigns, should at any time 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 THE
JAWS OF MACHINERY OR APPARATUS FOR BREAKING STONES AND OTHER HARD SUB-
STANCES," a communication to me from abroad by Hugh Junor Browne,
of Melbourne, in the Colony of Victoria, Merchant, and Arthur Hope, of
Prahran, in the same Colony, Engineer, upon the condition (amongst
others) that I, the said John Henry Johnson, my executors or adminis-
trators, by an instrument in writing under my hand and seal, should
particularly describe and ascertain the nature of the 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 within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Henry Johnson, do hereby
declare the nature of the said Invention, and in what manner the same

page_text: is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Drawings and to the letters and figures marked thereon, that is to say :-
The said Invention relates to certain peculiar constructions of the
jaws of machines employed in breaking stones and other hard substances,
and consists partly in making flutings upon both the back and front
faces of the moveable or vibrating jaw in order that when one side or
face is rendered useless by wear the jaw may be reversed and the new
face brought into action.
In order to secure a more effectual action in the lower moving or
parallel sliding jaw in the cubing machine for which British Letters
Patent were granted to me, the said John Henry Johnson, on behalf of
the said Hugh Junor Browne and Arthur Hope, bearing date the
Eighteenth of March One thousand eight hundred and seventy-one,
No. 741, the said jaw is according to the present Invention fitted
with a series of projecting punches which correspond to the openings
in the fixed jaw, and the said punches in some cases work through
openings in an intermediate plate situate between the two jaws in
order that when the punches withdraw they shall present no obstacle
to the free descent of the stone or other hard substance under treatment.
The pieces of stone are directed into the proper position to be acted upon
by the punches by wedge-shaped guides having their apices pointing
upwards. At the lower portion of the two jaws there is formed a toothed
grating composed of interlocking triangular bars or teeth carried
respectively by the fixed and parallel sliding jaw, the object of such
grating being to allow of the escape of the screenings as the grating
opens and closes with the jaws. The most important feature of this
Invention however consists in forming a curved, straight, or angular
offset on the bottom edge of the acting face of the fixed jaw with
alternate serrations, the flutings or channels in the face of the fixed jaw
in lieu of extending direct through to the bottom of the jaw being made
to run into or to coincide or be in line with projections or ridges on the
lower portion of the same jaw, so that although the ridges in the face or
upper part of one jaw coincide with the flutings or channels of the
opposite jaw above an imaginary horizontal line drawn a little way from
the bottom of the jaw, the tips of the ridges or projections below that
line coincide with the tips of the ridges or projections in the opposite
jaw, whereby a simple and economical cubing action on the stone is

page_text: obtained. The ridges and flutings in the moveable jaw run vertically
and straight from top to bottom, and the bottom may be rounded or
made to recede slightly so as to correspond to the projecting part on the
fixed jaw below the said imaginary horizontal line.
And in order that the said Invention may be fully understood, I shall
now proceed more particularly to describe the same, and for that purpose
shall refer to the several Figures on the annexed Sheet of Drawings, the
same letters of reference indicating corresponding parts in all the
corresponding Figures.
Figure 1 of the Drawings is a sectional elevation of the new double
faced moving jaw for ordinary stone breaking machines. A represents
the moving jaw, and a, a, are the corrugations or flutings upon its
two faces.
Figure 2 is a sectional elevation of the improved sliding jaw for cubing
machines, and Figure 3 is an inner face view of the corresponding fixed
jaw. B represents the sliding jaw, and C the fixed jaw; b, b, b, are
punches fitted into the sliding jaw, which by their forward thrust force
the stone through orifices or dies in the opposite or lower fixed jaw C;
c, c, represent the improved triangular toothed grating or screen, which
is so constructed that the teeth fitting between each other and being
attached to the sliding and fixed jaws open and close with the action of
the sliding jaw, thus allowing the escape of the screenings. d (Figure 2)
is a plate which is introduced between the moving jaw B and the fixed
jaw C. This plate has orifices corresponding with the position of the
punches 6 in the sliding jaw B. When the sliding jaw is at its extreme
backward movement the points of the punches bare flush with the face
of the plate d, thus preventing the lodgment and riding of stone upon
the punches, and consequent obstruction of the action. e, e, (Figure 3)
are guides, which being wedge-shaped lead the stone into position for
the action of the punches.
Figure 4 is a vertical section of the improved vibrating and fixed jaws
for producing stone of a cubical form.
Figure 5 is an enlarged view of the acting face of the improved fixed
jaw; Figure 6 is a similar view of the acting face of the vibrating or
moveable jaw; Figure 7 is a horizontal section of the two jaws taken
along the line 1-2 in Figure 5; and Figure 8 is a similar view taken
through the upper part of the pair of jaws. A is the moving jaw having

page_text: vertical angular ridges a in its acting face, which acting face is continued
at its lower extremity in the form of a receding curve 6 (see Figure 4);
B is the fixed jaw, the face of which is vertical for nearly its whole
length, or as far as the dotted line 1-2 (Figure 4), from which point it
is of a curved or angular form, as shewn at 6' in Figure 4; c, c, in
Figures 5 and 8 are the points of the ridges in the upper portion of the
fixed jaw; and d, d, are the bottoms of the recesses between the said
ridges above the line 1-2; e, e, in Figures 5 and 7 are the points of the
ridges; and f,f, are the bottoms of the recesses between the said ridges
in the offset or that part of the face which is below the line 1-2. It
will be observed that the points of the ridges above and below the
line 1-2, are alternate, and these are continued in their respective lines
until they terminate in the recesses. In Figure 7 the faces of the two
jaws are shown below or on the line 1-2, when closed, at which part the
points e of the ridges in one jaw coincide with and meet the points a of
the ridges in the other jaw. In Figure 8 the two faces above the
line 1-2, are shewn, at which part the points c, c, of the ridges of one
jaw coincide with or are opposite to the recesses or hollows of the
opposite jaw. The action of jaws of this description above the line 1-2,
is in fact similar to that of those now generally used, and the addition of
the set-off portion or off-set below the line 1-2, combined with its
alternate action upon the stone prior to discharging the same imparts a
cubical form thereto. Jaws of this peculiar description are applicable to
any stone breaking machine now in use.
Having now described and particularly ascertained the nature of the
said Invention, and the manner in which the same is or may be used or
carried into effect, I would observe in conclusion that what I consider to
be novel and original, and therefore claim as the Invention secured to
me by the herein-before in part recited Letters Patent is,―
First. The application and use to and in stone breaking machines of
a double faced moveable jaw, substantially as and for the purpose herein-
before described and illustrated by Figure 1 of the Drawings.
Secondly. The application and use of a sliding jaw for cubing purposes,
fitted with punches in combination with a fixed jaw having corresponding
openings therein, substantially as and for the purpose herein-before
described.
Thirdly. The combination with the above of an intermediate plate

page_text: situate between the moveable and the fixed jaw, substantially as and for
the purpose herein-before described.
Fourthly. The application and use of the peculiar triangular toothed
grating or screen, substantially as and for the purpose herein-before
described.
Fifthly. The construction and use of jaws for stone breaking machines
with a curved, straight, or angular offset, and with alternate serrations,
as and for the purpose herein-before described and illustrated by
Figures 4 and 5 of the Drawings hereunto annexed.
Sixthly. The combination of the above described peculiar jaw with a
jaw having straight parallel serrations extending from top to bottom,
and made to recede slightly at the bottom edge, as herein-before
described and illustrated by Figures 4, 6, 7, and 8 of the Drawings
hereunto annexed.
In witness whereof, I, the said John Henry Johnson, have to this
my Specification set my hand and seal, the Twenty-eighth day of
June One thousand eight hundred and seventy-two.
J. HENRY JOHNSON. (L.S.)

page_text: and
In the Matter of Letters Patent granted to JOHN HENRY JOHNSON, of
47, Lincoln's Inn Fields, in the County of Middlesex, Gentleman, for the
Invention of "IMPROVEMENTS IN THE JAWS OF MACHINERY OR APPARATUS
FOR BREAKING STONES AND OTHER HARD SUBSTANCES." A communication
from abroad by Hugh Junor Browne, of Melbourne, in the Colony of
Victoria, Merchant, and Arthur Hope, of Prahran, in the same Colony,
Engineer.
DISCLAIMER AND MEMORANDUM OF ALTERATION proposed as to be
entered by David Stratton, of Edinburgh, Road Surveyor, and David Gray, of
Sunnyside Engine Works, Coatbridge, Lanarkshire, Scotland, Engineer, the
registered proprietors of the said Letters Patent, pursuant to the Statutes in
that case made and provided.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters Patent,
bearing date the Twenty-eighth December, One thousand eight hundred and
seventy-one, and numbered 3508, did for herself, her heirs, and successors, give
and grant unto the above-named John Henry Johnson, bis executors, admini-
strators, and assigns, the sole privelege and of making, using, and vending the said
Invention for "IMPROVEMENTS IN THE JAWS OF MACHINERY OR APPARATUS FOR
BREAKING STONES AND OTHER HARD SUBSTANCES," within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and the Isle of Man, for and
during the term of fourteen years then next ensuing:
And whereas, in pursuance and performance of a proviso in the said Letters'

page_text: Patent contained, the said John Henry Johnson did, within six calendar months
next after the date of the said Letters Patent, cause a Specification in writing under
his hand and seal, particularly describing the nature of the said Invention, and in
what manner the same was to be performed, to be duly filed in the Great Seal
Patent Office:
And whereas the said Letters Patent have become and now are vested in us, and
we are the registered proprietors thereof:
And whereas since the filing of the said Specification and since the said
Letters Patent became vested in us we have ascertained that some of the matters
claimed in the said Specification are not useful for practical purposes, and we are
therefore desirous of disclaiming the sanie:
NOW KNOW YE, therefore, that we, the said David Stratton and David Gray, by
Solicitor
and with the leave of Her Majesty's Attorney General, and for the reasons afore-
said, do hereby disclaim, alter, and amend the said Specification by introducing
after the paragraph ending in line thirty on page 5 of the said Specification the
following words-To the parts and combinations as above described, and as shewn
in Figures 1, 2, and 3 of the Drawings, no claim is made as forming part of this
Invention, and by striking out entirely the first four claiming clauses in the said
Specification, commencing at line 30 on page 6 down to line 5 on page 7, and also
by striking out the word "Fifthly" in line 6 on page 7, and the word "Sixthly
in line 10 on the same page, and substituting therefor the word also.
"
And in order that the effect of the Disclaimer and Memorandum of Alteration
may be clearly understood, as we annex a copy of the Specification as it will appear
after our said Disclaimer and Memorandum of Alteration have been made.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN HENRY
JOHNSON, of 47, Lincoln's Inn Fields, in the County of Middlesex, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters Patent
bearing date the Twenty-eighth day of December, in the year of our Lord One
thousand eight hundred and seventy-one, in the Thirty-fifth year of Her reign,
did for Herself, Her heirs and successors, give and grant unto me, the said John
Her special licence, that I, the said John Henry Johnson,
A
Henry Johnson, my executors, administrators, and assigns, or such others as I, the
said John Henry Johnson, my executors, administrators, or assigns, or-such-others-as
I should at any time 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 THE JAWS OF
MACHINERY OR APPARATUS FOR BREAKING STONES AND OTHER HARD SUBSTANCES," a
communi- cation to me from abroad by Hugh Junor Browne, of Melbourne, in the
Colony of Victoria, Merchant, and Arthur Hope, of Prahran, in the same Colony
Engineer, upon the condition (amongst others) that I, the said John Henry Johnson,
my executors or administrators, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the 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 within six calendar months next and immediately
after the date of the said Letters Patent.
manner
A
NOW KNOW YE, that I, the said John Henry Johnson, do hereby declare the
nature of the said Invention, and in what the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement, reference
being had to the accompanying Drawings and to the letters and figures marked
thereon, that is to say :-
The said Invention relates to certain peculiar constructions of the jaws of
machines employed in breaking stones and other hard substances, and consists

page_text: wear
partly in making flutings upon both the back and front faces of the moveable or
vibrating jaw, in order that when one side or face is rendered useless by ware the
jaw may be reversed, and the new face brought into action.
locking
In order to secure a more effectual action in the lower moving or parallel sliding
jaw in the cubing machine for which British Letters Patent were granted to me,
the said John Henry Johnson, on behalf of the same said Hugh Junor Browne
and Arthur Hope, bearing date the Eighteenth of March One thousand eight
hundred and seventy-one, No. 741, the said jaw is according to the present Inven-
tion fitted with a series of projecting punches which correspond to the openings in
the fixed jaw, and the said punches in some cases work through openings in an
intermediate plate situate between the two jaws, in order that when the punches
withdraw they shall present no obstacle to the free descent of the stone or other
hard substance under treatment. The pieces of stone are directed into the proper
position to be acted upon by the punches by wedge-shaped guides, having their
apices pointing upwards. At the lower portion of the two jaws there is formed a
toothed grating composed of interlopping triangular bars or teeth carried respec-
tively by the fixed and parallel sliding jaws, the object of such grating being to
allow of the escape of the screenings as the grating opens and closes with the jaws.
The most important feature of this Invention however consists in forming a curved,
straight, or angular offset on the bottom edge of the acting face of the fixed jaw,
with alternate serrations, the flutings or channels in the face of the fixed jaw, in
lieu of extending direct through to the bottom of the jaw, being made to run into
or to coincide or be in line with projections or ridges of the lower portion of the
same jaw, so that although the ridges on the face or upper part of one jaw coincide
with the flutings or channels of the opposite jaw above an imaginary horizontal
line drawn a little way from the bottom of the jaw, the tips of the ridges or pro-
jections below that line coincide with the tips of the ridges or projections in the
opposite jaw, whereby a simple and economical cubing action on the stone is
obtained. The ridges and flutings in the moveable jaw run vertically and straight
from top to bottom, and the bottom may be rounded or made to recede slightly, so
as to correspond to the projecting part on the fixed jaw below the said imaginary
horizontal line.
on
A
And in order that the said Invention may be fully understood, I shall now pro-
ceed more particularly to describe the same, and for that purpose shall refer to the
several Figures on the annexed Sheet of Drawings, the same letters of reference
indicating corresponding parts in all the corresponding Figures.
Figure 1 of the Drawings is a sectional elevation of the new double faced moving
jaw for ordinary stone breaking machines. A represents the moving jaw, and a, a,
the corrigations or flutings upon its two facings.
Figure 2 is a sectional elevation of the improved sliding jaw for cubing machines,
and Figure 3 is an inner face view of the corresponding fixed jaw; B represents the
sliding jaw, and C, the fixed jaw.; b, b, b, are punches fitted into the sliding jaw
which by their forward thrust force the stone through orifices or dies in the
opposite or lower fixed jaw C; c, c, represent the improved triangular toothed
grating or screen which is so constructed that the teeth fitting between each other
and being attached to the sliding and fixed jaws open and close with the action of
the sliding jaw thus allowing the escape of the screenings. d (Figure 2) is a plate
which is introduced between the moving jaw B and the fixed jaw C; this plate has
orifices corresponding with the position of the punches b in the sliding jaw B.
When the sliding jaw is at its extreme backward movement the points of the
punches 6 are flush with the face of the plate d, thus preventing the lodgment and
riding of stone upon the punches and consequent obstruction of the action.
e, e, (Figure 3) are guides which being wedge shaped lead the stone into position for
the action of the punches.

page_text: To the parts and combinations as above described, and as shewn in Figures 1, 2,
and 3 of the Drawings, no claim is made as forming any part of this Invention.
Figure 4 is a vertical section of the improved vibrating and fixed jaws for pro-
ducing stone of a cubical form.
1-2
Figure 5 is an enlarged view of the acting face of the improved fixed jaw;
Figure 6 is a similar view of the acting face of the vibrating or moveable jaw;
Figure 7 is a horizontal section of the two jaws taken along the line 1-2; in
Figure 5 and Figure 8 is a similar view taken through the upper part of the pair of
jaws; A is the moving jaw, having vertical angular ridges a in its acting face,
which acting face is continued at its lower extremity in the form of a receding curve b
(see Figure 4); B is the fixed jaw, the face of which is vertical for nearly its whole
length or as far as the dotted line 1-2 (Figure 4), from which point it is of a
curved or angular form as shewn at b¹ in Figure 4; c, c, in Figures 5 and 8 are the
points of the ridges in the upper portion of the fixed jaw; and the d, d, are the bottoms
of the recesses between the said ridges above the line 1-2; e, e, in Figures 5 and 71
are the points of the ridges; and ff, are the bottoms of the recesses between the
Baid ridges in the offset or that part of the face which is below the line 1-2.
It will be observed that the points of the ridges above and below the line
alternate, and these are the continued in their respective, until they terminate in
the recesses.
In Figures 7 the faces of the two jaws are shewn below or on the
line 1-2 when closed, at which part the points e of the ridges in one jaw coincide
with and meet the points a of the ridges in the other jaw. In Figure 8 the two
faces above the line 1-2 are shewn, at which part the points c, c, of the ridges of
one jaw coincide with or are opposite to the recesses or hollows of the opposite jaw.
The action of jaws of this description above the line 1-2 is in fact similar to that
of those now generally used, and the addition of the set-off portion or off-set below
the line1-2 combined with its alternate action upon the stone prior to discharging
the same imparts a cubical form thereto. Jaws of this particular, description are
applicable to any stone breaking machine now in use.
lines
peculiar
▲
are
Having now described and particularly ascertained the nature of the said Inven-
tion and the manner in which the saine is or may be used or carried into effect, I
would observe in conclusion that what I consider to be novel and original, and
therefore claim as the Invention secured to me by the herein-before in part recited
Letters Patent is,
-
The construction and use of jaws for stone breaking machines with a curved,
straight, or angular offset, and with alternate serrations as and for the purpose
herein-before described and illustrated by Figures 4 and 5 of the Drawings hereunto
annexed.
and made to recede slightly at the bottom edge
Also the combination of the above described peculiar jaw with a jaw having
straight parallel serrations extending from top to bottom as herein-before described
and illustrated by Figures 4, 5, 6, 7, and 8 of the Drawings hereunto annexed.
A
In witness whereof, I, the said John Henry Johnson, have to this my Specifi-
cation set my hand and seal, the Twenty-eighth day of June One thousand
eight hundred and seventy-two.
In witness whereof, we, the said David Stratton and David Gray, have
hereunto set our hands and seals, this Ninth day of May, in the year of
our Lord One thousand eight hundred and seventy-seven,
Witness,
JAMES FRENCH.
WILLIAM DUNCAN.
D. STRATTON.
DAVID GRAY.
(L.S.)
(L.S.)

page_text: I hereby grant my fiat giving leave to the above-named David Stratton
and David Gray, as Assignees of the Letters Patent, to file in the Great Seal
Patent Office, with the Specification to which the same relates, the above-written
5 Disclaimer and Memorandum of Alteration.