IMPROVEMENTS IN APPARATUS FOR REGULATING THE VALVES OF STEAM AND OTHER ENGINES, ALSO APPLICABLE FOR REGULATING THE WEIGHTING OF DRILLING AND OTHER MACHINES to be as follows:
Year: 1884

page_text: I WILLIAM STEVENS of Rook Nest, Stanley near Wakefield in the county of
York Engineer do hereby declare the nature of my Invention for "IMPROVEMENTS
IN APPARATUS FOR REGULATING THE VALVES OF STEAM AND OTHER ENGINES, ALSO
APPLICABLE FOR REGULATING THE WEIGHTING OF DRILLING AND OTHER MACHINES
to be as follows:-
"
I employ a strap and eccentric the eccentric
pivotted on a plate or indicator
disc, made to fix on to the fly wheel shaft in two pieces, secured to each other by
bolts or other means, the eccentric has a finger and there are indicating numbers
upon the indicator disc, projections on the back of the indicator disc carry a spindle
screwed or threaded and passing through a projection on the finger of the eccentric,
this finger is moved backwards or forwards in a slot in the indicator plate by means
of the screwed spindle the eccentric being connected to the slide valve rods the
cut off of the valves are regulated to any nicety, in applying the regulator to
drilling machines, I attach the plate or disc to a boss or pap on the bevel wheel of
the drill spindle the eccentric and indicator being constructed as before described,
but instead of the screwed spindle and projection on the indicator, a pin and nut
may be used an arm is connected to the eccentric and operates a catch engaging
with a ratchet wheel, and regulates the weight to the drill spindle, by this application
all throwing in and out of gear is avoided.
JOHN E. WALSH,
Crossley Street, Halifax,
Agent for the Applicant.

page_text: I WILLIAM STEVENS, of Rook Nest, Stanley, near Wakefield, in the county of
York, Engineer, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN APPARATUS FOR REGULATING THE VALVES OF STEAM AND OTHER ENGINES,
ALSO APPLICABLE FOR REGULATING THE WEIGHTING OF DRILLING AND OTHER
MACHINES," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The object of my invention is in steam and other engines, to regulate the motion
imparted to the valves, to the utmost nicety, without breaking the cover; so that
when the pointer is at one end of the indicator, the valve has no movement, but
commences and increases as moved forwards, when at the other end the valves are
fully opened, and when applied to drilling and other machines, it similarly regulates
the weighting, cut, feed, or forward movement of the tool and tool holder.
DESCRIPTION OF DRAWINGS.
Fig, 1, is a front elevation of my apparatus shewing it applied for regulating the
valves of steam engines.
Fig, 2, is an end elevation of Fig, 1.
Fig, 3, is a plan of Fig, 1.
Fig, 4, shews the two halves of the excentric, detached.
Fig, 5, is an end view of excentric.
Fig, 6, is a back elevation of plate or indicator disc.
Fig, 7, shews part of an ordinary drill with my regulator attached.
Fig, 74, is a plan of part of Fig, 7.
I employ a strap A, and eccentric B, the eccentric is pivotted to a plate or
indicator disc C, the indicator disc is made preferably in halves, and attached to
the fly wheel shaft D of the engine by bolts E. E, or other means, or it may be
whole and keyed on to the shaft D; the eccentric carrying the strap A is also in
halves, so as to cross the joint of the plate, and its position on the plate or indicator
disc C, is regulated by a threaded or screwed spindle W, carried at the back of the
plate or indicator disc C, by projections or studs F. F. the threaded portion of the
spindle passing through the projection or head G of a regulating bolt H, the screwed
spindle is adjusted by box key W₁ (see Fig, 3,) or by a regulating bolt alone, this
regulating bolt H. passes through a slot J, in the plate and through the eccentric,
and secures the position of the eccentric on the plate, by the nuts or lock nuts K,
both the eccentric and the plate are prolonged or have arms L, and are pivotted
together at M, and secured by stud N, and pin N'; the strap of the eccentric is
connected by the slide valve rods R and R' to the slide valve R³, the eccentric on
its top side has a pointer or finger P, the position of the eccentric on the plate is
regulated by turning the screwed spindle one way or the other, this moving the

page_text: regulating bolt (in the slot) and the eccentric; the finger P indicating the amount
of motion imparted to the slide vale R, and so the cut off is regulated to any
nicety, without breaking the cover; the lower numbers on the indicator plate are
for use when the apparatus is applied to other machinery, and the higher one's
when applied to engines.
It will be seen that the halves of the eccentric (see Figs, 4, and 5.) are secured
together by studs S, holes T, and taper pins V, forming a perfect ring or circle
outwardly, and inwardly, and by turning the screwed spindle one way or the
other, it is made more or less eccentric to the shaft D, or centre of the plate.
In applying the regulator to a drilling machine (see Figs. 7. and 7) the indicator
(with eccentric and strup) is attached to the boss or pap on the bevel wheel X of
the drill spindle, there is a connecting rod R³, from the strap to a plate Y, pivotted
on a shaft or stud Z, on which is a ratchet wheel Z' operated by a catch Z³, on the
plate Y; a worm and worm wheel, bevel wheels, or other suitable gear connect the
shaft Z with the upright spindle which imparts motion to the drill spindle or other
machinery requiring a forward movement, cut, or feed motion.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what
I claim is
(1) The employment of an adjustable ring or eccentric and indicator or plate
pivotted and secured together so that the ring or eccentric can be easily and readily
adjusted, so as to be more or less eccentric to the shaft upon which the plate is
fixed, and so operate more or less the valve slide or other machinery, as shewn
and described.
(2) The eccentric or ring in halves constructed so as to form a perfect circle, as
shewn and described.