IMPROVEMENTS IN APPARATUS FOR WEIGHING, AND ALSO IN CRANES OR LIFTING APPARATUS COMBINED WITH WEIGHING APPARATUS
Year: 1868

page_text: LETTERS PATENT to Michael Henry, of 68, Fleet Strect, in the Oity
of London, Patent Agent, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR WEIGHING, AND ALSO IN CRANES OR LIFTING APPARATUS
COMBINED WITH WEIGHING APPARATUS."-A communication from abroad
by Pierre Michaud and Louis Joseph Jay, both of 17, Boulevard
Saint Martin, Paris, France.
Sealed the 2nd March 1869; and dated the 11th September 1868.
PROVISIONAL SPECIFICATION left by the said Michael Henry at the
Office of the Commissioners of Patents, with his Petition, on the
11th September 1868:
I, MICHAEL HENRY, of 68, Fleet Street, in the City of London; Patëňt
Agent, do hereby declare the nature of the said Invention for "IMPROVE
MENTS IN APPARATUS FOR WEIGHING, AND ALSO IN CRANES OR LIFTING APPARATUS
COMBINED WITH WEIGHING APPARATUS," communicated to me from abroad by :
Pierre Michaud and Louis Joseph Jay, both of 17, Boulevard Saint:
Martin, Paris, France, to be as follows:-
In this apparatus a lever is employed, which lever or its axis works
on a knife edge or knife edges. One arm of the lever carries the article

page_text: or matter to be weighed, a tray, plate, pan, platform, or other support
or holder for such article being connected with or formed on the said
arm. The other arm of the lever carries or is formed or furnished with
a counterpoise or counterbalance weight. The lever works, rocks, or
. oscillates on the knife edge or edges, and it or its axis is connected with
or works appliances which actuate a pointer travelling over a graduated
dial to indicate the weight. When an article or matter to be weighed
is placed on or in one arm of the lever or beam the counterpoised or
weighted arm swerves from the perpendicular, being of course pendulous,
and by the arrangements in connection with it it acts upon the pointer
which indicates the weight on the dial.
In order that the Invention may be thoroughly understood I will
describe some arrangements by way of exemplification of its application.
A weighing machine may be thus constructed. The lever or beam
working on the knife edge has on its axis or on a part of its length a
friction roller or other appliance acting on a bent lever carrying a
toothed segment in gear with a pinion on the axis of a dial pointer, so
that when the counterpoise arm swings out of the vertical it works the
pointer, which thereupon shews the weight. The lever or beam may
be supported on a stand or standing frame, or it may be suspended on
a pendant arm or frame.
The Invention may be applied to a steelyard arrangement, in which
case one arm carries the counterpoise, while the other is connected on
by crank arms working on knife edges and supporting the tray, plate,
or platform for receiving the article or matter to be weighed.
In cranes or lifting apparatus combined with weighing apparatus the
latter is constructed according to this Invention, and one arm of the
lever or beam is weighted or carries a counterpoise as before, while the
other arm is connected by a bar or rod working on a knife edge or knife
edges formed on it to the jib or weight-supporting arm of the crane or
lifting apparatus, which is jointed, articulated at its lower end, or made
moveable, so that it may move or change its position as necessitated by
the weight, its change of position working through the connecting arm,
the lever or beam, and causing the counterpoise arm thereof to work
and transmit motion by bent lever and toothed segment or other ordinary
transmitting contrivance to the pointer on the dial.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Michael Henry in the Great Seal Patent Office
on the 11th March 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MICHAEL
HENRY, of 68, Fleet Street, in the City of London, Patent Agent, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of September, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Michael Henry, Hor special licence that I,
the said Michael Henry, my executors, administrators, and assigns, or
such others as I, the said Michael Henry, my executors, administrators,
and 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 APPARATUS FOR
WEIGHING, AND ALSO IN CRANES OR LIFTING APPARATUS COMBINED WITH WEIGHING
APPARATUS," communicated to me from abroad by Pierro Michaud and
Louis Joseph Jay, both of 17, Boulevard Saint Martin, Paris, France,
upon the condition (amongst others) that I, the said Michael Henry, 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 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 Michael Henry, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described, and ascertained in and by the
following statement thereof, as communicated to me, reference being had.
to the accompanying Drawings, and to the letters and figures. marked
thereon, that is to say :-
'
In this apparatus a lever or beam is employed, which' lever or leam
or the axis thereof works on a knife edge or knife edges. One arm of

page_text: the lever or beam carries the article or matter to be weighed, a tray,
plate, pan, platform, or other support or holder for such article or
matter being connected with or formed on the said arm. The other
arm of the lever or beam carries or is formed or furnished with a
counterpoise or counterbalance weight. The lever or beam works, rocks,
or oscillates on the knife edge or edges, and it or its axis is connected
with or works appliances which actuate a pointer travelling over a
graduated dial to indicate the weight. When an article or matter to
be weighed is placed on or in the tray or other support formed on or
connected with one arm of the lever or beam the counterpoise or
weighted arm swerves from the perpendicular, being of course pendulous,
and by the arrangements in connection with it the lever or beam acts
upon the pointer which indicates the weight on the dial.
In order that the Invention may be thoroughly understood I will
describe some arrangements by way of exemplification of its application.
A weighing machine may be thus constructed according to this Inven-
tion. The lever or beam working on the knife edge has on its axis or
on a part of the length of its weighted arm a friction roller acting on a
bent lever or arm carrying a toothed segment in gear with a pinion
on the axis of a dial pointer, so that when the weighted arm swings
out of the vertical it works the pointer, which thereupon shews the
weight. The lever or beam may be supported on a stand or standing
frame or it may be suspended on a pendant arm or frame.
The Invention may be applied to a steelyard arrangement; thus one
arm carries the counterpoise or weight, and the other is connected with
and acted on by crank arms working on knife edges and supporting the
tray, plate, or platform for receiving the article or matter to be weighed.
In cranes or lifting apparatus combined with weighing apparatus the
latter is constructed according to this Invention, and one arm of the lever
or beam is weighted or carries a counterpoise, as before, while the other
arm is connected by a har or rod working on a knife edge or knife edges
with the jib or weight-supporting arm of the crane or lifting apparatus,
which is jointed or articulated at its lower end, or made moveable, so. that
it may move or change its position as necessitated by the weight, its
change of position acting through the connecting arm on the lever or
beam, and causing the counterpoised arm thereof to work and transmit
motion by bent lever and toothed segment or other ordinary transmitting
contrivance to the pointer on the dial.

page_text: ร
The accompanying Drawings represent apparatus constructed according
to this Invention.
Figure 1 is a vertical elevation, partly in section, and Figure 2 a front
elevation of the apparatus arranged for weighing small articles. A is a
lever or beam centered on an axis working on knife edges a which rest
on a framework or support O forming a stand; one arm of the lever A
is weighted at b, and the other arm carries a tray B, on which the article
to be weighed is placed. e is a friction roller mounted on the axis of
the lever A. If preferred this roller may be fixed on the upper part of
the weighted arm of the lever A. The roller e acts against a curved arm or
lever i which works an arm k* carrying a toothed quadrant k, which is in
gear with a pinion 1. On the axis t of this pinion is a pointer or index
needle L, which travels over a dial M graduated to indicate weight.
When the apparatus is in a state of equilibrium the weighted end of the
lever A hangs in a vertical position, but when an article to be weighed is
placed in the tray B the beam or lever A works or oscillates on the
knife edge, and its weighted end 6 swings out of the vertical, and thereby
moves the roller e which works the arm i and causes it to act on the
toothed quadrant k, thereby moving the pinion l, axis t, and pointer L;
and the pointer travels over the dial a distance or to an extent indicating
the weight of the article in the tray B. It is generally found satisfactory
in practice that the respective lengths of the arms of the beam or lever
and the weight or counterpoise attached, to or carried by one end thereof
should be so regulated that the maximum of the weight to be indicated
should cause the weighted beam or lever, and hence the axis on which
it works, to travel only in an arc or curved path less than a quadrant
or quarter of circumference, of a circle.
Figure 3, is a front view, and Figure 4 a side view of the apparatus
shewn, as suspended,, instead of being placed on a stand C. In this
arrangement the working lever or beam A, which works as before on
a knife. edge. a, is supported on a framework a*, a*, hanging from a
hook, screw, or other means of suspension. B is the tray suspended from
one end of the arm A, as before. M, indicating. dial, and L, pointer;
b, weight fixed to. one end of the beam A, all as, before; e, roller
acting on the toothed quadrant k, which by means of the pinion and its
axis t works the pointer L, which travels over the dial. The method
of construction and action of this apparatus is similar to that of the

page_text: are differently placed with respect to each other, as appears from the
Drawing.
Figure 5 is a sectional elevation representing the apparatus combined
with a crane or lifting apparatus. The principle of construction and
action and general arrangement of the weighing apparatus are the same
as before described. m is the beam or lever which works on a knife
edge, as before described. That arm or end of the beam which is to
carry the substance to be weighed is connected by a tension bar n*
with the jib or main supporting barn of the lifting apparatus.. This
bar n* terminates in a knife edge at each end. The bar or jib n is
jointed at foot to the main post Q of the machine, so that it may
accommodate its position as required. The lever m works like the lever
or beam A, shewn in preceding Figures, on a knife edge axis, the knife
edges being mounted on friction rollers. p is the weight which is
suspended from one arm of the beam m and hangs in a vertical position
between the frame standards P when the apparatus is in a state of
equilibrium or rest. p* is the barrel, drum, or roller over which passes
the chain 9 which proceeds from the winch 1, and carries (and lifts)
the articles or goods to be weighed. It is preferred to place above this
barrel a ratchet wheel and catch or pawl, which if the chain g should
break would check and stop the fall of the articles or goods which are
to be raised. * is a hook and chain to hold and steady the chain g
while the articles are being weighed; s is a hook on the frame post P,
which engages in a ring 9 on the weight p and steadies it when the
machine is not at work. The vibrating motion of the knife-edged axis
of the beam or lever m is transmitted by this beam or lever to an arm or
lever by the friction roller e, and this arm u, which is similar to the
arm shown in previous Figures, works a toothed quadrant k connected
with it, and engaging with a pinion 1. On the axis of this pinion is
the index pointer L travelling over a graduated dial M, all as described
in reference to the preceding Figures. In this manner the weight of
the articles or goods which are being lifted is indicated on the dial. In
machines of this description it is best that the counterbalance weight p
should weigh about one-third of the maximum weight of the goods to
be lifted, so that the crane may be firm and steady, nevertheless this
weight may be reduced by making the arm m of the lever or beam
smaller and by increasing the distance between the axis of the barrel p*

page_text: and the top of the jib. The whole crane or lifting apparatus may be
jointed at foot or stepped so as to work on a pivot or joint, or it may
be mounted on a platform Q* travelling on wheels, as shewn in the
Drawing, or it may be a fixture or mounted in any desirable manner.
Figure 6 shews the apparatus applied as a steelyard.
is a lever or
beam;
from one end or arm of this lever or beam is suspended a rod y
connected with a crank z mounted on knife edges and worked by and
connected with a rod V*, with which are connected two other cranks 10, w,
also mounted on knife edges or knife-edged axes. These cranks 20, 20,
support a tray X, on which is placed the article to be weighed. Thus
the tray X is connected with the arm of the beam v by the cranks z
and w and rods y and V*. The effect of the weight acting on the beam
or lover and the parts in immediate connection therewith is transmitted
to the pointer L in a manner similar to that described in reference to
such transmission in the modifications described in the previous Figures,
and the pointer L travels over a graduated dial M and indicates the
weight thereon, all as described in reference to previous Figures. b is
the weighted end of the arm v, and C the supporting frame; 1, pinion,
k, toothed quadrant.
The weighted beam or lever used in the above arrangements or modi-
fications may transmit its motion to the index or pointer by a curved
lever or arm, as described in certain of the above arrangements, or it
may communicate its motion to such index or pointer for the purpose
explained by other ordinary piece or contrivance mounted on the axis
on which it works, or otherwise conveniently placed for the purpose.
Having now described the nature of the said Invention and in what
manner the same may be performed, I declare that I claim,-
First. The weighing apparatus herein-before described, in which a
lever or beam working as explained, and having one arm weighted or
carrying or formed with a weight or counterbalance weight or counter-
poise, and the other arm formed or provided with contrivances for
holding the article, substance, body, matter, or goods to be weighed
transmits motion to an index or pointer travelling over a dial or
graduated surface, substantially in the manner and for the purpose
set forth.
Second. The apparatus described in reference to Figures 1 and 2 in so

page_text: same consists, as herein-before explained and represented in the accom-
panying Drawings.
Third. The apparatus described in reference to Figures 3 and 4 in
so far as regards the arrangement and combination of parts of which
the same consists, as herein-before explained and represented in the 5
Drawings.
Fourth. The combined weighing apparatus and crane or lifting
apparatus herein-before described, having their parts arranged and
combined substantially in the manner above set forth and illustrated in
Figure 5 of the accompanying Drawings:
Fifth. The steelyard apparatus described in reference to Figure 6,
having its parts arranged and combined substantially in the manner
above set forth..
I
In witness whereof, I, the said Michael Henry, have hereunto set
my hand and scal,. this Eleventh day of March, in the year One: 1
thousand eight hundred and sixty-nine.
Witness,
E. DE PASS,
68, Fleet Street,
London.
M. HENRY. (L.S.)