Apparatus for Automatically Alternating Delivery of Liquid to Two Outlets or Receptacles.
Year: 1891

page_text: Date of Application, 1st June, 1891
Complete Specification Left, 14th Nov., 1891-Accepted, 19th Dec., 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by GABRIEL STOKES, of Salem, Madras, in the
Empire of India, Esquire.]
Apparatus for Automatically Alternating Delivery of Liquid to Two
Outlets or Receptacles.
I, FRANCIS CHRISTOPHER EARLE BLAND of 2 Inns Quay, in the City of
Dublin, Solicitor, do hereby declare the nature of this invention to be as
follows:-
..This invention relates to apparatus so constructed and arranged that a continuous
supply to it of water or other liquid causes it automatically to rock.at intervals of
time and to discharge overflow through outlets or into receptacles at opposite sidles
alternately.
The apparatus may be used in cases where it is desired to supply two vessels
alternately with liquid, or where it is desired to utilise the rocking movement for
agitation as well as for change of the contents, as for instance, for photographic
and other washing vessels or trays. The apparatus is in the form of an open vessel
poised. at the middle so that it can rock against stops cach way, It is divided by
two vertical partitions into a middle compartment and two end compartments; from
each of the latter there is a discharge outlet a little above the bottom.
From the one side, say the right side of the middle compartment, a passage leads
over a weir to.the left end. compartment, and from the other, the left side of the
middle compartment, a similar passage leads over a weir to the right end com-
partment.
The middle compartment being supplied with liquid, the apparatus works in
the following manner Assuming that the vessel has rocked over so that the right
end compartment is lowest and has emptied itself through the outlet at that end,
then, as the liquid rises in the middle compartment it overflows the right hand.weir
and passes into the left end compartment until the charge in that compartment is
sufficient to cause the vessel to rock over, bringing its left end compartment down
to be lowest and raising its right end. The liquid in the middle then overflows the
left hand weir, and charges the right end compartment, causing it to descend in its
turn. Thus, as long as liquid is supplied to the middle, the vessel rocks from the
one side to the other at intervals which are the shorter the more rapid the supply
of liquid.
Dated this 1st day of June 1891.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Apparatus for Automatically Alternating Delivery of Liquid to Two
Outlets or Receptacles.
I, FRANCIS CHRISTOPHER EARLE BLAND, of 2 Inns Quay, in the City of
Dublin, Solicitor, 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 :-
This invention relates to apparatus so constructed and arranged that a continuous
supply to it of water or other liquid causes it automatically to rock at intervals of
time and to discharge overflow through outlets or into receptacles at opposite sides
alternately. The apparatus may be used in cases where it is desired to supply two

page_text: vessels alternately with liquid, or where it is desired to utilise the rocking movement
for agitation as well as for change of the contents as, for instance, for photographic
and other washing vessels or trays.
Fig. 1 of the accompanying drawings, is a longitudinal section on the line X X
cf Fig. 2, which is a plan, of apparatus according to this invention.
An open vessel is poised at the middle B so that it can rock against stops C C
each way. It is divided by two vertical partitions D D'into a middle com-
partment A. and two end compartments E E' from each of which there is a discharge
outlet, which may deliver into a receptacle.
From one side of the middle compartment A a passage F
to the farther end compartment E¹ and from the other
compartment A, a similar passage F¹ leads over weirs
compartment E.
leads over weirs f
side of the middle
to the farther end.
HH are balance weights which may be more or less loaded and K Kare
battens of wood or other light material or they may be hollow bars of metal to
give certain buoyancy on the side where cach is submerged.
The middle compartment A being supplied with liquid, admitted by funnels GG¹
and passages the apparatus works in the following manner. The vessel having
rocked over to the position shewn in Fig. 1 so that the compartment E is lowest
and has emptied itself through the outlet at that end, then, as the liquid rises in
the middle compartment A it overflows the weir fand passes over the weir / into
the compartment E' until the charge in that compartment is sufficient to cause the
vessel to rock over, bringing its end compartment E' down to be lowest and raising
its other end compartment E.
The liquid in the middle then overflows the weirs and charges the com
partment E, causing it to descend in its turn. Thus, as long as liquid is supplied
to the middle, the vessel rocks from the one side to the other at intervals which
may be varied by adjusting the balance weights and floats and the rapidity of the
supply of liquid.
Having now particularly described and ascertained the nature of this iuven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Apparatus for automatically alternating delivery of liquid to two outlets or
receptacles consisting of a rocking vessel having a middle compartment continuously
supplied with liquid and two end compartments alternately receiving liquid over
weirs by passages from opposite sides of the middle compartment and discharging
it at the ends, substantially as described.
Dated this 13th day of November 1891.
ABEL & IMRAY,
Agents for the Applicant.