Improvements in Parallel or Joint Frames of Lamps.
Year: 1893

page_text: Date of Application, 3rd Oct., 1893
Complete Specification Left, 3rd July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Parallel or Joint Frames of Lamps.
I HENRY SALSBURY of 125 and 126 Long Acre, London, Lamp Manufacturer
do hereby declare the nature of this invention to be as follows:-
This invention relates to making the parallel links or arms and lugs of back and
socket plates of lamps that when the parts are placed in position they are held by
the springyness of the links and lugs, or either, without the use of the usual long
screws or other fastening devices.
According to my invention I make conical, cup shaped or similar joints to
parallel links or arms of lamps from plates (springy or not) which when coupled
up or engaged with similar shaped lugs or projections of the socket and back plates
(with or without leather or other washers between the cones, cups or similar
joints) they hold themselves in position by the springyness of the plates or by
the springyness of the lugs or ears on or of the back plate and socket plate.
By way of illustration I will refer to a cycle head lamp, although my invention
is applicable to all kinds of lamps for vehicles.
I stamp or otherwise prepare two plates with projecting ears, which I form
conical or cup shaped. These plates serve as socket and back plates of the lamp
with the ears bent inwardly.
I stamp or otherwise prepare parallel links, or arms, with corresponding lugs,
ears, or cups to engage in, or against those of the socket and back plates.
The lugs, ears, or cups may have lip pieces or tongues to be bent over the
opposite half joint to prevent separation during rough usage or from accidents,
or pins or bolts may fit in openings of the conical joints.
The parallel links, or arms, are made in one piece, or connected by a cross bar,
or bars, and may have the compensating spring attached for absorbing the vibration
when travelling over rough roads.
Dated this 3rd day of October 1902
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said H. Salsbury.
COMPLETE SPECIFICATION.
Improvements in Parallel or Joint Frames of Lamps.
I HENRY SALSBURY of 125 and 126 Long Acre, London, 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:-
This invention relates to making the parallel links or arms and lugs of back and
socket plates of lamps that when the parts are placed in position they are held by
the springyness of the links and lugs or either without the use of the usual long
screws or other fastening devices.
According to my invention I make conical, cup shaped or similar joints to
parallel links or arms of lamps from plates, springy or not, which when coupled
up or engaged with similar shaped lugs or projections of the socket and back
plates with or without leather or other washers between the cones, cups or similar
D

page_text: joints they hold themselves in position by the springiness of the plates or by the
springiness of the lugs or ears on or of the back plate and socket plate.
By way of illustration I will refer to a cycle head lamp although my invention
is applicable to all kinds of lamps for vehicles.
My invention will be clearly understood by reference to the annexed drawings
in which
Figure 1 is a side view of a parallel or joint frame with lamp and socket affixed
as shown in dotted lines and Figure 2 is a plan of the same construction of parallel
links or arms and in which the parts are held in position by the springyness of the
links.
Figure 3 is a side view of the same construction of parallel links showing the
turned down portion or extension of the cone or cup for further security against
the parting of the links from the lugs or lamp, and also shows the position of the
antivibrating spring.
Figures 4 and 5 are plan and side views respectively of parallel links having the
cones at the ends of two pieces of strip spring steel, the strips being connected to
a cross plate by rivetting.
Figure 6, is a plan of a different form of link and in which the lugs on the
back plate and socket plate are springy Figure 7 being a perspective elevation of
the springy back or socket plate.
I stamp or otherwise prepare two plates A. B, with projecting ears C which I
form conical or cup shaped. These plates serve as socket and back plates of the
lamp, with the ears bent inwardly.
I stamp or otherwise prepare parallel links or arms D..D, with corresponding
lugs, ears or cups E to engage in or against those C of the socket and back
plates A. B.
The lugs, ears or cups may have lip pieces or tongues F to be bent over the
opposite half joint to prevent separation during rough usage or from accidents or
pins or bolts may fit in openings of the conical joints.
The parallel links or arms D are made in one piece or connected by a cross
bar G, or bars and may have the compensating spring H attached for absorbing
the vibration when travelling over rough roads.
In some cases both the links and the lugs may be of a springy character and be
used together.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The improvement in parallel or joint frames of lamps substantially as
described and shown by the annexed drawings.
2. Making parallel links or arms and the lugs of back and socket plates of
lamps that when the parts are placed in position they are held together by the
springyness of the links and lugs or either, substantially as described.
Dated this 3rd day of July 1034.
Date HS Dr uay VI July 1034.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said H. Salsbury.