Valve Motion for Direct Acting Pumps, Engines and Machines.
Year: 1886

page_text: Valve Motion for Direct Acting Pumps, Engines, and Machines.
JOHN EDWARD HAINSWORTH, Mechanical Engineer Leeds Road, Dewsbury,
ALFRED THOMAS WINN Mechanical Engineer, No. 3 Savile Road, Savile Town,
Dewsbury, WILLIAM EDWARD HAINSWORTH Mechanical Engineer, Leeds Road,
Dewsbury, do hereby declare the nature of our invention for VALVE MOTION FOR
DIRECT ACTING PUMPS ENGINES AND MACHINES to be as follows:-
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On a piston rod, or rods is placed a projecting pin the eye of which is bored out
to fit, the rod or rods, and the projecting ends imparts a motion to a lever which is
swung on a pin, and at either end of the stroke the lever comes in contact with a
cam or tapit which gives motion to the valve or valves, on the cam or tapit are
placed, set screws wedges and small pin holes by which a short or long stroke may
be attained.
In our complete specification will be given plans shewing the nature of our
claims.

page_text: Valve Motion for Direct Acting Pumps, Engines, and Machines.
JOHN EDWARD HAINSWORTH, Mechanical Engineer Leeds Road, Dewsbury,
ALFRED THOMAS WINN, Mechanical Engineer No 3 Savile Road, Savile Town,
Dewsbury, WILLIAM EDWARD HAINSWORTH, Mechanical Engineer Leeds Road,
Dewsbury, do hereby declare the nature of our invention for VALVE MOTION, FOR
DIRECT ACTING PUMPS, ENGINES AND MACHINES, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement :-
On a piston rod, pump rod, or other rods combined, is firmly fixed two washers,
marked A A, on Figs. 1, 2, 3, 4, between which washers is loosely placed a steel
pin marked B on Figs. 1, 3, 4 the eye of which is bored out to fit easy on the
piston rod, pump rod or other rods, the projecting end is turned to fit in the long
slot in lever marked C on Figs. 1, 3, 4. Lever C is swung on pin marked D on
Figs. 1, 2, 3, 4, which pin is made to go through the whole length of the boss of
cam or tapit. Lever C gives motion to the recessed cam or tapit marked E on
Figs. 1, 2, 3, 4, by coming in contact with the projecting parts of the cam or tapit
at either end of the recess which imparts a motion to the valve spindle or spindles
by which means the steam is admitted to the steam cylinder and exhausted from
steam cylinder. The projecting end of the cam or tapit is turned to fit in the
bored out bracket marked J on Figs. 1, 2, 3, 4, which is parellel in one portion and
conical at the end near the cam or tapit, the extremity of the parellel end is
screwed on which is placed a washer marked F on Figs. 2, 3, and a nut marked G
on Figs. 2, 3, by which means the conical part of the cam or tapit projecting end,
can be drawn into the cone in bracket thereby the cam or tapit may be made either
tight or slack as desired, in the raised lug of the cam or tapit is firmly secured a
small pin marked H on plans 1, 2, 3, 4, to which is coupled the valve rod or rods
for communicating the desired motion to the slide valve or valves, on the recess
cam or tapit at the two points marked X on Fig. 4, are placed wedges, for regu-
lating the length of stroke if desired, at the two points marked Y on Fig. 4, are
placed set screws for regulating the length of stroke if desired, and at the various
points marked Z on Fig. 4 are small pin holes for inserting a pin by which means
a short or long stroke may be arranged if desired.
Having now particularly described and ascertained the nature of our Inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
Firstly. That by the motion imparted to the swinging lever, by the projecting
pin which is fixed on the piston rod pump rod, or other rods, and the lever coming
in contact with the raised portion of the recessed cam or tapit, when the pin has
taken the lever to its furthest extremity, it is then able to exert such a power from
the fulcrum pin as to impart a motion to the cam or tapit, which is communicated
to the valve or valves as before described.
Secondly. The mode and design of the cam or tapit so as to cause the two
projecting parts to meet the lever at the one and same time as before described.

page_text: Thirdly. The mode of regulating the amount of motion to be given to the slide
valve or valves, which is performed either by tightening or slackening the nut
at the end of the projecting portion of the cam or tapit which passes through the
conical bored bracket thereby either drawing the taper in the cone or releasing it
as before described.
Fourthly. The mode of reducing or lengthing the stroke of pumps or Engines, can
be arranged as desired, by either the Wedges, Set Screws, or pins, which reduces or
increases the vacant space for the swinging lever to travel in before coming in
contact with either the Wedges, Set Screws, or pins, so as to give a motion to the
cam or tapit that is to say by making the points of the Wedges, Set Screws, or
pins either by themselves or combined, either on one side or both sides of the cam
or tapit nearer to the swinging lever, the stroke is either shortened or lengthened,
pe before dosemibed.
Dated this Twentieth day of October 1886.
JOHN EDWARD HAINSWORTH.
ALFRED THOMAS WINN.
WILLIAM EDWARD HAINSWORTH.