Year: 1887

page_text: Date of Application, 20th Sept., 1887
Complete Left, 20th June, 1888
Complete Accepted, 20th July, 1888
I, JAMES TATE, of 33 Stanacre Place, Bradford, in the County of York, Foreman
Mechanic, do hereby declare the nature of this invention to be as follows :-
This invention relates to certain improvements in the means employed for indicating
the time run or speed of an engine or other machine by an apparatus so arranged that
a portion of the same may be placed in the office or other portion of the works out
of the control of the workmen, and constructed in such a manner that, the fingers of
the apparatus represent on the dial the number of hours and minutes run by the
engine or other machine during the day or week.
I accomplish my object in the following manner: In a suitable casing attached to
an electro magnet, I mount a ratchet wheel containing by preference the same number
of teeth as strokes, or revolutions the engine or other machine should make per minute,
and operate the wheel one tooth each stroke or revolution by a pawl attached to a
reciprocating bar. To some convenient portion of the said ratchet wheel I secure a
pin which comes in contact each revolution of the said wheel with a weighted arm on
a stud, the said pin carrying the weighted arm around the stud until it arrives in a
certain position, when it moves by gravity on the said stud about half a revolution,
causing a spring to move and complete an electric circuit the weighted arm being
retained clear of the spring until again operated by the pin secured to the ratchet
wheel.
By completing the electric circuit in the manner described, the current is sent
through the connecting wires to the dial portion of the apparatus in the office or
other portion of the works and therein operates a lever and pawl, which actuates a
ratchet wheel every time the circuit is completed, thereby moving the fingers on the
dial once every minute, so that the minute and hour fingers will indicate the time run
and show the number of minutes the engine or other machine has gained or lost
during the day or week.
1007

page_text: I, JAMES TATE, of 33, Stanacre Place, Bradford, in the County of York, Foreman
Mechanic, 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 certain improvements in the means employed for indicating
the time run or the speed of an engine or other machine, by an apparatus so arranged
that, a portion of the same may be placed in the office or other desirable portion of
the works out of the control of the workmen.
The invention consists in mounting within a casing, a ratchet wheel having by
preference the same number of teeth as revolutions required of the engine or other
machine; and is operated at each revolution by a pawl; and on the wheel is a pin
which carries with it for some portion of each revolution, a weighted arm to a certain
position, when it moves by gravity on its axis, causing a spring to complete an electric
circuit, and thereby to allow the current to pass through the connecting wires to the
dial portion of the apparatus in the office, and there to operate an armature, and a
ratchet wheel to move for some distance on its axis cach time the circuit is completed ;
the ratchet wheel being suitably geared or connected for operating the fingers or
pointers to denote the time run.
In order that my invention may be better understood, I will further describe the
same by aid of the accompanying drawings; in which Fig. 1. represents a front view
of the portion of the apparatus to be operated by the engine or the like.
Fig. 2. is a back view of the dial portion of the apparatus.
Fig. 3. a front view, and Fig. 4 a section of Fig. 2.
Within the casing A, I secure a stud B, on which is placed ratchet wheel C, a
weighted arm D, and a bell crank lever E. The ratchet wheel C contains by
preference the same number of teeth as revolutions the engine or other machine should
make per minute, and is operated the distance of one tooth every revolution by the
pawl hinged to one arm of the bell crank lever E, the latter being attached to and
operated by some convenient part of the engine, or other machine of which a record
is required.
To the face of the ratchet wheel C, I secure a pin H, which comes in contact with
the weighted arm D and carries it around with it, until it arrives somewhat near the
position in which it is shown by dotted lines; when by its own gravity the weighted
arm moves on the stud B, until it comes in contact with spring K, where it is retained
until the pin H again raises it to the position shown by dotted lines.
On the weighted arm D passing from one position to the other, it comes in contact
with the spring L, causing it to press against the end of terminal M, thereby com-
pleting the metallic connection between the two terminals M and M by which the
electric current is allowed to pass to the dial portion of the apparatus connected
therewith by wires; and placed in the office or other desirable portion of the
works.

page_text: When the circuit is completed in the manner described, the electric current on
passing through the magnets N, attracts the armature P, causing it to come in contact
with the ratchet wheel Q, and thereby to operate through a suitable train of clock
gearing, the minuto pointer R, the distance equal to one half of a minute; the
pointer R, being moved the distance equal to the other half minute on the circuit
being broken, which releases the armature P, and on the same falling to the
position shown, the ratchet wheel Q is moved the necessary distance for the
pointer R to complete the movement over the space equal to one minute; the gearing
between the shaft or spindle of the minute pointer, and the shaft of the hour pointer,
being of the ordinary description common to ordinary time clocks.
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:
The means herein shown and described for operating the pointers substantially in
the manner and for the purpose set forth.
The combination of the ratchet wheel C, with the weighted arm D, and the spring L
for the purpose hereinbefore set forth.
Dated this 19th day of June 1888
JOHN WAUGH,
Agent.