Improvements in and relating to Velocipede Lamps.
Year: 1888

page_text: Date of Application., 16th Nov., 1888
Complete Specification Left, 9th Aug., 1889-Accepted, 14th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in and relating to Velocipede Lamps.
I, HARRY LUCAS of the Tom Bowling Lamp Works, Little King Street, Birmingham
in the county of Warwick, Lamp Manufacturer, do hereby declare the nature of this
invention to be as follows:-
My improvements relate to that type of velocipede lamp having its attaching socket
separate from the body of the lamp, and connected thereto by two or more parallel
jointed arms, whereby the body of the lamp is allowed an independent movement
which is controlled by a spring or springs, acting between one or more of the said
arms, and either the body of the lamp or its supporting socket, and it consists in a
new and improved spring for controlling the movement of the borly of the lamp.
My improved spring is made of a bow shape out of one or more plates or wires, one
end of this spring is hinged to one of the armis connecting the socket with the body
of the lamp at or near to its pivotal connection with the body of the lamp, and the
other end is hinged to the socket or the plate carrying it, at or near to its pivotal
connection with the said arm. If desired one end of the spring may be rigidly
connected to the arm, socket, or body of lamp. The spring is preferably attached to
the upper arm with its concave side uppermost, when its resiliency acts to support the
weight of the body of the lamp and restores it to its normal position after "dipping,"
due to the jolting or vibration of the machine to which it is attached. The spring can
be connected to the lower arm if desired, or a spring may be used on each arm.
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As a modification the spring or springs may be attached to the arm or arms and to
the body of the lamp, instead of to the socket as hereinabove described.
121
T
1000
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
Royal Courts Chambers, 70, Chancery Lane, London, W.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Velocipede Lamps.
I, HARRY LUCAS, of Tom Bowling Lamp Works, Little King Street, Birmingham,
in the County of Warwick, Lamp Manufacturer, 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:-
My improvement relates to that type of Velocipede lamp having its attaching socket
separate from the body of the lamp, and connected thereto by two or more parallel
jointed arms, whereby the body of the lamp is allowed an independent movement
which is controlled by a spring or springs acting between one or more of the said
arms, and either the body of the lamp, or its supporting socket, and it consists in a
new and improved spring for controlling the movement of the body of the lamp.
My improved spring is constructed and arranged as illustrated in the accompanying
drawing in which Figure 1. is a view in side elevation of a lamp with its attachment
fitted with my improved spring. Figure 2. is a broken view in side elevation showing
the spring compressed at the utmost limit of the movement of the body of the lamp,
and Figure 3. is a view in plan of the top arm and socket of the attachment with the
spring attached.
Throughout these views similar parts are markod with like letters of reference.
The body of the lamp A, the socket B, and the arms or links C C are all of the
usual type. The controlling spring D is made of a bow shape out of one or more

page_text: plates or wires. One end of the spring is hinged, or otherwise connected, to one of
the arms or links preferably the top one C, at or near to its pivotal connection with
the body of the lamp, and the other end is hinged to the barrel or other part of the
socket B at a short distance from its pivottal connection with the arm or link C.
Figure 1. shows one end of the spring D hinged to snugs cc on the forward part of
the arm or link C, and the other end hinged to snugs bb on the eye or barrel 6 of the
socket B. Figure 2. shows the one end of the spring rigidly fixed to the forward
part of the arm or link U by screws or otherwise, and the other end pivotted to
snugs bb on the eye or barrel b¹ of the socket B. The distance at which one end
of the spring D'is hinged to the supporting socket from the point of its connection
with the arm or link C, will depend upon the strength of the spring and the weight
of the body of the lamp.
It will be seen that as the point at which the spring D is hinged to the socket B
is not concentric with the point of attachment of the socket with the arm or link (,
the bow of the spring will be compressed as the arm moves downwards with the body
of the lamp, until the strength of the spring overcomes the weight of the body of the
lamp, and so elastically supports it.
It will be obvious that a spring may be used in connection with each of the arms or
links and C³, and also that the said spring or springs may be attached to the body of
the lamp and the rear end or ends of the arms or links, instead of in the manner
hereinbefore described and illustrated in the accompanying drawing.
I wish it to be particularly understood that I do not limit myself to the exact details
of construction hereinbefore set forth, but hold myself at liberty to make such changes
and alterations as fairly fall within the spirit and scope of any invention.
Having now particularly described and ascertained the nature of my said inven- 2
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
1st. The improvement in Velocipede lamps, as herein before set forth.
2nd. In a Velocipede lamp the body of which is connected to its supporting socket
by parallel arins or links, controlling the movement of the body of the lamp through
the motion of the arms or links, by moans of one or more bow shaped springs as
set forth.
בד
Dated this 10th day of August 1889.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
Royal Courts Chambers, 71, 71 & 72, Chancery Lane, London, W.C.,
Agent for the Applicant.