Improved Method of Vibrating the Paper used in Siphon and other Recording Instruments.
Year: 1897

page_text: Date of Application, 3rd Dec., 1897
Complete Specification Left, 2nd Sept., 1898-Accepted, 5th Nov.,
1898
Improved Method of Vibrating the Paper used in Siphon and other
Recording Instruments.
1, ROBERT MILNE MURRAY, of 11, Chester Street, in the County of the City
of Edinburgh, North Britain, Physician, M.B., F.R.C.P.F., do hereby declare
the nature of this invention to be as follows:-
This invention relates to au improved method of vibrating the paper used in
siphon and other recording instruments, and consists of an arrangement of rollers
over which the paper is drawn by clockwork or other suitable means,
the
upper
rollers being so arranged as to be capable of fine adjustment so as to bring the
plane of the paper into the proper position in relation to the pen of the record-
ing instrument. The stand or bracket to which the frame carrying the rollers
is pivoted is provided with an arrangement whereby the frame can be readily
adjusted in altitude and in azimuth so as to raise or lower the paper and bring
its plane absolutely parallel with that in which the pen moves. The paper pass-
ing under the pen is kept in a state of rapid vibration by a lever actuated by an
electro-magnet whose rate of movement is determined by an adjustable electro-
magnetic interruptor connected in series with it.
Hated this 2nd day of Hono
1007
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.
Improved Method of Vibrating the Paper used in Siphon and other
Recording Instruments.
1, ROBERT MILNE MURRAY, of 11, Chester Street, in the County of the City
of Edinburgh, North Britain, Physician, M.B., F.R.C.P.E., 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 an improved method of vibrating the paper used
in syphon and other recording instruments, such as recording voltmeters, ane-
meters, waltmeters, and meteorological instruments such as recording barometers
& thermometer and consists of an arrangement of rollers over which the paper
is drawn by clockwork or other suitable means the upper rollers being so arranged
as to be capable of fine adjustment so as to bring the plane of the paper into the
proper position in relation to the pen of the recording instrument. The stand
or bracket to which the frame carrying the rollers is pivoted is provided with
an arrangement whereby the frame can be readily adjusted in altitude and in
71

page_text: azimuth so as to raise or lower the paper and bring its plane absolutely parallel
with that in which the pen moves. The paper pussing under the pen is kept
in a state of rapid vibration by a lever actuated by an electro-magnet whose
rate of movement is determined by an adjustable electro-magnetic interruptor
connected in series with it.
lu order that my invention may be properly understood and readily carried
into effect I have hereunto appended one sheet of drawings of which,
Figure is a front elevation of an instrument embodying my invention and
Figure 2 is an end view of the same suitable base or sole plate A. Mounted in
the piece B which has bevilled sides working in V-shaped recess and capable
of a horizontal transverse motion, is a pedestal or column C. Working within
the said hollow pedestal or column C is the cylindrical portion C' which has a
telescopic vertical movement obtained by a rack D and pinion E, Figure 2. To
the upper end of the said cylindrical portion C is connected an arm or frame F
on which are mounted the three antifrictional rollers G, H, and 1 which carry
the paper. The said arm F is capable of radial movement by its pivotal con-
nection J, to the transverse cylindrical arm K, which again is connected to a
pivotal boss L capable of adjustment and controlled by the screw stud M and milled
head N. The proper or approximately true position of the arm or frame Fis
obtained by a spiral spring O pressing against the arm P which is connected to
the pivotal boss L by means of the downward extension 7. The outward pressure
of the spring 0 is resisted by the screw stud M already referred to when it is
desired to slightly raise the paper . By the device last described the arm or
frame can be readily adjusted both in altitude and in azimuth in order to raise
and lower the paper i and bring its plane absolutely parallel with that in which
the pen of the syphon recorder moves.
The paper passing under the said
pen Q is kept in a state of rapid vibration by the R actuated by the electro-
magnets S, also mounted upon the said arm or frame F, whose rate of movement
is determined by an adjustable electro-magnetic interruptor 1 connected in series
with it, as shown in Figure 1. The vibrating lever R is capable of very fine
adjustment in its relationship with the paper i by the screw arrangement U.
And the antifriction rollers G and H may more or less be moved by the screw
adjustment V without imparting a corresponding movement to the roller I.
i
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:-
1. The method of vibrating the paper used in syphon and other recording instru-
ments, substantially as described and illustrated in the accompanying sheet of
drawings.
2. The arrangement whereby the frame can be adjusted in altitude and in
azimuth so as to raise or lower the paper and bring the plane absolutely parallel
with that in which the pen moves, substantially as described and illustrated ou
the accompanying sheet of drawings.
Dated thin lot day of Santambar 180R
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.