An Improved Regulator for Weight Motors.
Year: 1896

page_text: Date of Application, 13th Nov., 1896-Accepted, 19th Dec., 1896
COMPLETE SPECIFICATION.
An Improved Regulator for Weight Motors.
I, ADOLPHE ISIDORE VAN VRIESLAND of 78 Sarphatistraat, Amsterdam in
the Kingdom of Holland, Merchant, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
Weight motors are mostly only regulated by adjustment of the length of the
pendulum, or by alteration of the fly or air vanes. These devices however absorb
the major part of the active power stored up in the weights so that the effective
available power of such motors is in no proportion to the power applied.
These drawbacks are removed by the present invention which is shown in the
accompanying drawings in vertical sections.
The motor weight k, Fig. 1, which is suspended by a cord or chain, descends
into a vessel B. On the under face of the weight is arranged an indiarubber
bladder m which is half filled with glycerine. This indiarubber bladder mis
attached at the top to the ring or eyelet g of the weight by means of the filling
pipe h, and is closed by the said ring. Guides are arranged on the weight,
because the weight in this form of construction must be smaller than the vessel.
A pipe D is attached to the vessel B in such a way as to communicate at the
bottom at a with the said vessel. The upper end of the pipe D is provided with
an overflow 6 adapted to be regulated by means of a device d.
The mode of operation of this apparatus (Fig. 1), is as follows:-Water, or other
liquid of similar specific gravity is poured into the vessel B and on the surface ii
of said liquid, the bladder m filled with glycerine is pressed flat by the weight k
and thus serves as a washer against the walls of the vessel, so that neither the
weight can sink downwards into the liquid, nor the latter can rise upwards. By
the pressure of the weight the water is driven upwards in the communicating
pipe D, and the overflow b is so regulated that the weight must sink downwards
slowly or rapidly as desired, and in this manner the motor operated by the weight
is correspondingly regulated. The water discharged at b accumulates above the
weight k and increases the mass of the weight without however exerting any action
on its speed, because according to hydrostatic laws the difference of pressure
between the pipe and the vessel increases in the same proportions as the weight
sinks and as the quantity of water above the weight accumulates or increases.
When the weight has sunk to the bottom, it is again drawn up, and as the pressure
on the bladder m thus ceases, the latter will hang down and no longer have a
washering action, thereby allowing the water accumulated above the weight to fall
to the bottom through the interstice between the weight and the walls of the
vessel. The glycerine in the indiarubber bladder, owing to its specifically lighter
gravity, then again floats on the water, causing the bladder to again form a tight
joint and the operation re-commences.
In the modified form of construction, of the resistance regulator for weight
motors shown in Figure 2, the glycerine bladder m is replaced by a leather cup-
shaped washer m. In this case the return of the water, on the weight being drawn
up, is permitted by means of a back pressure valve n, the guides being dispensed
with

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed; I declare that what I
claim is :-
1. A regulating device for weight motors, characterized by the weight being
inserted in a vertical pipe or vessel and tightly washered therein so that on
descending it shall force liquid contained beneath it to flow through an opening at
the bottom of the vessel into an ascending pipe, from whence said water may
return into the vessel by means of an overflow or return flow opening which is
preferably adjustable substantially as described.
2. A weight motor regulator such as herein-described, characterized by an
elastic bladder or bag being employed for washering the weight, said bag being
filled with a specifically lighter liquid than that contained in the pipe or vessel,
substantially as described.
3. A weight motor regulator such as herein described, in which the washering of
the weight is effected by means of a leather cup-shaped washer and the return of
the water on the drawing up of the weight is permitted by means of a back pressure
valve, substantially as described.
1 AT.
1000
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicant.