Improvement in Electro-Magnetic Engines. Page: 2 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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125,504
UNITED STATES PATENT OFFICE.
WILLIAM G. THORNTON, OF VICTORIA, TEXAS.
IMPROVEMENT IN ELECTRO-MAGNETIC ENGINES.
Specilication forming part of Letters Patenut No. 125,504, dated Aprl 9, 1872.Specification describing an Improved Elec-
tro-MIagnetie Engine, invented by WILLIAM
G. THOnNTON, of Victoria, in the county of Vic-
toria and State of Texas.
Figure 1 represents a side elevation, partly
in section, of my improved electro - magnetic
engine. Fig. 2 is a plan or top view of the
same. Fig. 3 is a horizontal section of the
same on the line c c, Fig. 1.
Similar letters of reference indicate corre-
sponding parts.
This invention relates to a new practical ap-
plication of electro-magnetism to machinery
br the purpose of moving the same and keep-
iug it in motion, and developing a degree of
force which is only limited by the reduced pro-
portion of power applied. The invention con-
sists principally in the transmission of electro-
magnetic power through compressed air for
motor purposes, and the mechanism and com-
bination of machinery necessary for that pur-
pose.
A in the drawing represents a lever pivoted
to a fulcrum-standard, B. 0 is an air-pump
with al necessary valves and fixtures, to be
worked by the lever A. D is an atmospheric
receiver or fuel-chest with all necessary con-
necting-pipes, valves, &c. The lever A is to
be worked by electro-magnets E E in conjunc-
tion with gravitation-the electro-magnets to
lift the piston and gravitation to drive it down.
The length of stroke is regulated by a set-screw,
a, in the head of a slotted standard and guide,
F. The electro-magnets E E are arranged in
pairs on a line under the lever, their top ends
all being on a level. G G are armatures sus-
pended from the lever by arms b b that extend
upon each side of the lover, and are connect-
ed by a cross-bar, d, which is movable, and
fastened to the arm by nuts e. By these nuts
the arms can -be lengthened or shortened, as
maybe desired. The cross-bar d forms an edge
at thelower side like a scale-pivot, so that it may
swing with little friction. Every bard is con-
fined in place by a pair of projecting guards or
guides fo the lever A. These guards extend
upward at such angles as give freedom of mo-
tion to the suspended armature, and will allow
free motion to the lever after each armature has
reached its respective pair of magnets. These
guides falso insure the return of each arma-
ture to its proper place on the lever after thestroke is completed asd while the lever is mov-
ing up to its starting point. The distance at
which the first armature antd pair of magnets
should be fixed from the fulcrumn of the lever
will depend upon the strength of the magnets.
The first pair of maagnets have little more to
do than to lift the piston of the air-pump. The
next pair of magnets, bein g of the same power
as the first, will be able to continue the move-
ment, owing to mechanical advantage in length
of lever, and so on, each pair of magnets gain-
ing mechanical power as the distance from the
fulcrum increases, thus enabling them to meet
the constantly increasing resistance of the air
during the whole time of magnetic action.
It must be understood that the first pair of
magnets-that is, those nearest the fulcrum-
will bring down the lever so that the next a'-
matnre will be brought under the influence of
the next pair of magnets. When the first ar-
minatre, therefore, has reached its magnets, it
will remain idle during the continuance of the
stroke; and so with each armature, one after
the other. They all will become idle and stand
upon the magnets until the stroke is finished
and the circuit opened. When the circuit is
opened, the weight of the piston at the oppo-
site end of the lever, aided, if necessary, by
an extra weight or spring, will lift this end of
the lever to the starting point, and, as it rises,
each armature will be taken up in its turn, and
they will all assume their places on the lever
ready for another stroke, at which time the
circuit will be closed by automatic tender,
and the action repeated, and so on.
The extra or overbalance weight H, when
necessary to sink the piston, should be hung
near the fulcrum of the lever A, as shown. If,
on the contrary, extraweight can be allowed on
the power end of the lever, this weight should
be near the end of the lever. The circuit-tend-
er I is a slotted plate or frame with a cross-
board to receive a set-screw, h, through the
cross-bar, and another set-screw, i, through the
bottom, as shown. The two screws point to-
ward each other, and can be set to shorten or
lengthen the distance between their points.
The frame I is, by a jointed rod, j, which works
in guides 1 , suspended from the lever A, near
the fulcrumn of the same, as shown. The cir-
cuit-lever J stands at right angles to the main
lever, or has an arm standing thus at right
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Reference the current page of this Patent.
Thornton, William G. Improvement in Electro-Magnetic Engines., patent, April 9, 1872; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth165332/m1/2/?q=%22Science+and+Technology%22: accessed June 8, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.