Improvements in Penstocks and Sluice Valves.
Year: 1894

page_text: Date of Application, 1st Aug., 1894-Accepted, 20th Oct.,
1894
COMPLETE SPECIFICATION.
Improvements in Penstocks and Sluice Valves.
I MOSES JAMES ADAMS Engineer Peasholme Green York 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 :-
My improvements consist in the introduction of a flap lid instead of a sliding lid
or door and in the special mode of opening and controlling the lid or flap of a
penstock or sluice valve or of other valve used for regulating the outflow of a body
of liquid or of gas. In the penstocks which have been used heretofore and also in
the sluice valves the lid has been raised upwards gradually by the action of a screw
and nut and as the screw is rotated by hand wheel or key the lid is raised upwards
thus giving an opening of greater or lesser size according to the requirements of the
user and being regulated by the number of turns the hand wheel or key shall make.
I desire also to open a passage way through my valve but for the added value of a
quickened rise of the lid or flap and a more promptly effected opening or passage
way particularly of value where the valve or penstock is used for flushing purposes
I arrange my lid or flap on a novel plan as will be seen by reference to my drawings
the projection Fig. 1 and the section Fig. 2 being similarly lettered for ease of
reference.
Simply described the apparatus consists of a flap or lid A hung by pin B in
connection with saddle piece C and screwed spindle D working up and down in a
slot shewn by E in guide F on frame G on the flap or lid A as shewn at I a wedge
is placed which wedge pressing upon pin J as the screw spindle D revolves is drawn
upwards and serves to keep the face of the lid A and the face on frame G close
to one another at H and L are if required additional wedges. H being fixed on
the frame of the apparatus and L on the lid or flap as shewn by drawings.
It will be apparent that in drawing up the lid or flap A by the rotating of
spindle D the wedges H and L will come in contact and also assist to hold the
faces of the valve lid A and frame G together and it is evident now that if the
screwed spindle D be reversed in its rotations the flap or lid will drop downwards
and will be freed from the control of the respective wedges L and H and the water
or gas pressure will cause it to open outwards as a flap. To accelerate this opening
at M sometimes add a projection shewn and it will be seen that the projection
holds the Hap or lid upwards by the pin J and the screwed spindle D being still
rotated instead of allowing the lid or flap to slide downwards only throws it
outwards also as shewn by dotted lines N and thus controls the movement of the
flap or lid which whether there be pressure or not to assist its opening of gas or
water is actuated at will and its opening much or little or its closing is regulated by
the person who actuates the screwed spindle.
I may in some cases hold the spindle in the frame and allow a screwed nut to rise
or fall upon it so actuating the flap or lid and I may at times modify the apparatus
in detail as necessity demands but for practical purposes the arrangements shewn
and described are the special features of my invention.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is-
1st. The use of a lid on a valve or penstock which lid shall be hung as the lid of
a flap valve and which shall in closing be brought under control of wedges suitably
hi ha tenon of the list at Han and at frame together.
1

page_text: 2nd. The use of a valve or penstock with flap or lid opening outwards so hung
that the bolt or pin on which it is hung shall rise and fall by the rotation of a
screwed spindle or other equivalent contrivance.
3rd. The combination of a flap valve itself with wedges for keeping the face of
frame and lid in contact.
4th. The combination of flap valve A with slotted guides E screwed spindle D
wedges LH projection M and guide pin J.
5th. The use of the valve and flap wedges guides and spindle shewn herein and
fully described or their equivalent though differing in conformity substantially the
same.
MOSES JAMES ADAMS,
Peasholme Green, York, Engineer.