Improvements in or relating to Speed Regulators.
Year: 1899

page_text: Date of Application, 29th Aug., 1899 -Accepted, 7th Oct., 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Speed Regulators.
We, ROBERT LUDWIG MOND, 48, Park Street, Mayfair, London, Chemical
Manufacturer, MEYER WILDERMAN, Ph.D., B.Sc., 2, Kensington Gardens
Square, Bayswater, W., do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention consists of improvements in or relating to speed regulators,
more particularly for use with scientific instruments or recorders. The object
of our invention is to provide a regulator which is so arranged as to be readily
removable when required and replaced by another regulator, and also to enable
the tension of the spring regulating the wings or vanes or the surface of the wings
to be adjusted according to the circumstances under which it is used. This is
effected through the medium of a spindle which carries the wings or vanes, this
spindle having a toothed wheel in connection with the rotating mechanism, and
being so arranged as to enable the spindle to be removed as required.
Referring to the annexed drawing:
Figure 1 is a side elevation shewing our invention.
Figure 2, plan view of braking arrangement.
Figure 3, side elevation of modified arrangement.
Figure 4, side elevation of further modified arrangement.
Figure 5, side elevation of a still further modified arrangement, showing the
front right hand van removed.
Figure 6, plan view of same.
Referring to Figure 1, in this case the spindle a is provided with the disc b
as shewn in the dotted lines, Figure 2; and the spring c carried upon the support d
will act as a brake when the catch piece or operating nob e is in the position
shewn, but by rotating this operating nob, the spring c may be removed from
contact with the disc b.
This arrangement we find convenient to employ in various modified construc
tions of the apparatus. f are the wings pivoted at g to the support h, which is
fixed to the spindle a. The sliding piece upon the spindle a is connected
pivotally through the medium of the rods ; to the wings f, and the adjusting
screw enables the tension of the spring / to be regulated as required through
the medium of the pivoted levers which are pivoted at to support carried
upon the sliding piece i. It will be seen that by this arrangement, the tension
of the spring may be varied or adjusted, and thus controlling the spreading of
the wing according to the rate at which the spindle a is to rotate. By this
construction, different wheels may be employed for driving the spindle carrying
the wings and the speed of the spindle regulated by altering the tension of the
springs 1.
f
In Figure 3, a modification is shewn in which the effective surface or area of
the wings may be varied, this being effected by forming the wings f in two
sections pivoted together at m to the sliding piece i. If it is required to increase the
effective surface or area of the wings, this may be effected by moving the sec-
[Price 8d1

page_text: tion in the direction of the arrow / and it may be secured in this position by the
Bet screw n. The screw spindle o and spring p are for the purpose of enabling
the required adjustment of the relative position of the sections f and f¹ to be
determined. In Figure 4, a further modification is shewn, shewing the brake
arrangement applied thereto. In this case the vanes are again formed in two
adjustable sections for the purpose of increasing the effective area or surface and
the tension of the controlling spring may be regulated through the medium of
the screw spindle q, spring r and pivoted levers to which the regulating spring t
is attached at one end, the other end being attached to the pivoted lever u and
which is moved by the can projecting v attached to the wing w. In this case the
effective area or surface of the wings may be increased or decreased and the
sections formed in the wings may be secured in the required position through
the medium of the set screw x. In this case the rotation of the spindle y will
tend to cause the wings w to rotate upon the spindle z in the direction of the
arrow 3. In Figure 5, the vanes m¹ are carried upon the spindles n' which are
provided with toothed wheels o', said spindles having bearings in the casing
or frame p². A central wheel ' engages with the wheels o¹, and is in connection
with arms or levers which may be secured in the required position, said arms r¹
having pins projecting through the slots in the plate s¹, and being secured in
position by means of lock nuts t. By this arrangement, the vanes m¹ may be
set at the required position, that is to say, intermediate between that shewn
by the dotted lines in Figure 6, the vane m¹, thus giving more or less re-
sistance to the rotation of the spindle a¹, and this again is driven by any con-
venient operating mechanism.
It will be seen that the essential feature of our invention consists in the
arrangement by which the tension of the springs controlling the vanes may be
adjusted, and also the arrangement by which the effective area or surface of the
wings may be varied as required and another feature consists in the inter-
changeability of the spindle carrying the wings or vanes, that is to say, one may
be substituted for another if desired.
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 :-
:-
1. In speed regulators of the class herein described, the combined construction
and arrangement of the various parts, substantially as illustrated and for the
.purpose set forth.
a
2. In speed regulators of the class herein described, a spindle carrying movable
wings or vanes, said wings or vanes being controlled by suitable springs, the
tension of said springs being adjusted through the medium of a screw spindle;
toothed wheel upon said spindle for the purpose of enabling the same to be driven
by the required mechanism, a spring or brake for engaging upon a disc attached
to said spindle when required, said spindle being removably carried in suitable
bearings for the purpose of substitution, substantially as described and illustrated
herein and for the purpose set forth.
3. In speed regulators of the class herein described, the employment of com-
posite wings or vanes so arranged as to enable the effective area or surface of
such wings to be increased or diminished, such adjustment being effected through
the medium of a screw spindle; a set screw for securing the sections and spring
or parts of the wings or vanes in the required position, substantially as described
and illustrated herein and for the purpose set forth.
Dated th: 001 .
.