Improvements in Time Checking and Registering Apparatus.
Year: 1890

page_text: 'Date of Application, 19th Apr., 1890
Complete Specification Left, 17th Jan., 1891-Accepted, 21st Feb. 1891
PROVISIONAL SPECIFICATION.
Improvements in Time Checking and Registering Apparatus.
We, MAXWELL CROSBIE, Bridge Mills, New North Road, London, N., Drug
Grinder, and BENJAMIN WILLIAM WARWICK, 134, Highbury Hill, London, N.,
Electrician, do hereby declare the nature of this invention to be as follows:-
Our invention is essentially an electric contrivance or contrivances, which are
easily attached to and used with ordinary clocks for the purpose of enabling them
to send currents of any required duration at any required interval during each day
or other desired period of time.
From one pole of the battery proceeds a conductor terminating near the third
wheel or other part of the clock which revolves with moderate velocity. A pin on
this wheel insulated if desired pushes at each revolution this conductor against a
continuation of the conductor which is carried near to the escape wheel or other
quickly revolving part of the works, & contact is made at each revolution of this
part by means of a pin on the said part. From the other pole of the battery
proceeds the conductor through an electro-magnet to near a day wheel or other
slowly revolving wheel which may in some cases have to be added to the clockwork.
Contact is made between this wheel and the conductor by means of a specially
formed segment or segments on the said wheel. When this day wheel is part of
the frame the current passes when all three contacts are made. If desired special
electric connection may be provided between the rapidly moving aforesaid part &
the last named slowly revolving part. Any number of magnets may be operated
from the day wheel. The electro magnet acts on an armature & liberates a drum
or other suitable contrivance which is inade to move when liberated by a spring or
weights or other suitable means. The drum or similar contrivance carries paper
or other material to receive autographic or other desired record.
Dated this 18th day of Anvil 1800
W. H. MUNNS,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Time Checking and Registering Apparatus.
We, MAXWELL CROSBIE, Bridge Mills, New North Road, London, N., Drug
Grinder, and BENJAMIN WILLIAM WARWICK, 134, Highbury Hill, London, N.,
Electrician, do hereby declare the nature of this invention and in what manner
the same
to be performed, to be particularly described and ascertained in and
by the following statement:-
This invention is essentially an electric contrivance or contrivances which are
easily attached to and used with ordinary clocks for the purpose of enabling them
to send currents at any required interval during each day or other desired period
of time.
To show clearly how the invention is carried out we furnish drawings in which
the same parts are represented by the same letters throughout.
Fig. 1 is an external view of the apparatus.
Fig. 2 is a diagrammatic view explaining the method of working the apparatus.
Fig. 3 represents the interior of the recording part of the apparatus.
Fig. 4 is a view of the 24-hour wheel with segments secured to it.
Fig. 5 is an elevation of two segments.
On the escape wheel A is, a pin B which at each revolution makes contact with
spring piece C at points C1, C2. These points are so placed that contact is made
with C one or more beats after contact is made with C. Q is adjusting screw.
TDS17

page_text: Instead of one spring piece C carrying the two or more points C, C² there may be
two or more spring pieces each with its adjusting screw. The spring piece C and
conducting wires C³ are attached to and insulated from clock case or other supports
at D, D. On the third wheel E or other part revolving with moderate speed is
pin F, which at each revolution brings the spring pieces C C into contact with
each other for a few seconds. The spring piece C is insulated from wheel E. The
conducting wire C³ passes on to battery G and on through one or more electro-
magnets H to the spring piece C. J is a 24-hour wheel which in some cases may
have to be fitted specially on to the clock. On this wheel J are secured one or
more segments K which at each revolution make contact with spring piece C³ for
a certain period of time. These segments are removable and can be secured at any
part of the wheel J and make contact for a period of time varying with the size of
the projecting portion. Electric connection is made between wheels A and J
through the clock works. When all contacts are made the circuit is com-
pleted from wheel A through spring pieces, connecting wires, battery, coils, and
wheel J. The circuit being closed the electro magnet H attracts armature L
which is secured to support R and so withdraws catch M from tooth M on druin N.
The drum or drums N are then made to revolve by weight O and cord P or other
suitable contrivance till the catch M holds the next tooth M¹. Round the drums
is rolled paper or other suitable material for receiving autographic or other record.
As the drums revolve a fresh portion of paper is presented to receive such record.
The electro-magnet, battery, and drums are conveniently enclosed in case U.
In order to mark tampering with the machine it is convenient to present a fresh
portion of paper by means of two partial revolutions of drums N. This is effected
by the quickly following contacts made between pin B and points C and C², both
which contacts are made while contact is made between spring pieces C. The
pin B and points C, C² should be so arranged that contact does not take place
when the wheel A is at rest. Sis spring check on ratchet wheel T to moderate
the movements of drums N when freed and to prevent the drums moving
backwards. S is conveniently attached to the under side of the lid of the case U.
Instead of moving the paper a revolving shutter with one or more apertures
may be made to move over the fixed paper.
The weight W is employed to move the drum N in case the paper is prevented
from moving by force from without. The spring piece V pressing against tooth M
serves to moderate this movement.
More than one set of drums can be operated from the wheel J either parallel or
in series, and the drum N by means of contact pieces and connections can be used
as a relay to operate other drumis.
Any suitable disengaging gear can be employed with wheel J to allow it to be
set corresponding with the dial.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :
1. The contrivance substantially as described for sending currents at any required
interval for the purpose specified.
2. The 24-hour wheel fitted with specially formed segments substantially as
described for the purpose specified.
3. The multiple contact pieces C₁ C² on one or more spring pieces C. for the
purpose specified.
4. The arrangement of pin B with contact piece or pieces C¹ C² so that contact
is made only when the wheel A is in motion.
Dated this day of January 1891..
☐ MINNS
NN
Agent for Applicants.