mmprovements in Engine Governors.
Year: 1885

page_text: mmprovements in Engine Governors.
We, WILLIAM LUTHER COLLAMORE, of 94 North Main Street, Warren, in the
County of Bristol, Rhode Island, in the United States of America, Engineer';
and WALTER ACKROYD of 23, Spring Gardens, Bradford, in the County of York,.
Stuff Manufacturer, do hereby declare the nature of our invention for "IMPROVE-
MENTS IN ENGINE GOVERNORS," 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 certain improvements, in the ordinary, ball governor
of steam engine, or for other purposes, where such governors are usually employed,
whereby greater regularity in the running of the engine is attained than hitherto.
Our improvement consists in the first place of supplemental weights, which are
geared to the ordinary ball governor in such a manner, as when the governor is
revolving in the mean plane, the weight or weights have no effect whatever; but
as soon as the governor is obliged to rise or fall, the weight or weights come into
operation, by which weight is added to or.taken off the governor, thereby enabling
the balls to run at the same speed as when revolving in the mean plane.
In combination with the first named part of our improvement, we employ a dash
pot with an intermediate spring connecting the piston of the dash pot with the
moving parts of the governor; such dash pot and spring having a tendency to
prevent the governors rising or falling to extremes, when quick changes of the
load on the engine are effected in the factory or works.
The combination of the parts are more fully described in the following descrip-
tion and reference to the accompanying drawings; the invention having for its
object, the making of the revolutions of the governors isochronal, and the
prevention of the governors travelling too far when a sudden change in the load
takes place.
Fig. 1. represents an elevation of an ordinary pair of governors with our
improvements attached, Fig. 2. is an end view, Fig. 3. a plan of the portions
below the line a, b, and Fig. 4 is an enlarged detail partly in section, shewing the
connections between the governors and the adjustable weights.
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The governors are actuated and connected to the sleeve or collar A, in the usual
manner, which rises and falls on the spindle S, in accordance with the position of
the balls B. To the said collar is attached a rod D, the bottom portion of which
is cut with teeth which gear into the pinion E, mounted on a horizontal shaft

page_text: having its bearings in the projecting bracket F. On this shaft at one or both sides
of the bracket, we secure an arm on which we place an adjustable weight G,
which is in a vertical position or non-effective when the governor is revolving in
its mean plane; but should the position of the balls change to a higher or lower
plane, for any reason such as a change of load, or a variation in the steam pressure,
the collar A, will change its position on the spindle, and actuate the pinion E
accordingly, thereby causing the weight or weights G, to fall to the right or left as
shewn.by dotted lines in ig. 4; thereby adding weight to the governor, or taking
it off as the case may be ;, thus causing the governors to run at the same speed as
when revolving in the mean plane.
By the introduction of the dash pot H, of the usual construction, the governors
are prevented travelling too far when under sudden changes of load or pressure,
which is accomplished by securing to the before mentioned rod D, one end of a
spring J, the other end being attached in any convenient manner to the piston
rods K. By the introduction of the spring between the governors and dash pot,
the governors work with greater freedom than when rigidly connected with. the
plunger P, the spring allowing the governors to rise and fall rapidly when under
quick changes of load, thereby obtaining the advantage derived from the use of the
dash pot, without checking the governors abruptly when a sudden change of load
takes place.
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 of governors with the weight or weights G, so arranged
that the same are in a vertical position when the balls are revolving in the
. mean plane.
The combination of governors with the weight or
:
+
r weights G, as in claim one,
and dash pot H, substantially in the manner and for the purpose as hereinbefore
described.
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