Improvements in Lamps, applicable for Cycles and other purposes.
Year: 1893

page_text: Date of Application, 20th Nov., 1893
Complete Specification Left, 20th Aug., 1354-Accepted, 20.h Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Lamps, applicable for Cycles and other purposes.
I, GUSTAVE WILHELM MÖHRSTÄDT of 42 Howard Street Birmingham
Mechanical Engineer and Manufacturer do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to lamps or lanterns for cycles, carriages or portable
lanterns, and has reference:
:-
1. To a more efficient, durable and lighter support or carrier for cycle or other
lamps (technically called the guide i.e. that part or portion of the lamp which is
attached to the back of the lamp at the one end, and formed to receive the bracket
or holder at the other). This I accomplish by means of two or more pieces of
metal-one fixed to the back of the lamp and one formed with a clip or holder to
receive the bracket on which the lamp is fixed both these pieces of metal are bent
to form a channel or groove in which work concealed springs and both the said
pieces of metal have their outer edges or ends brought close together and formed
into a bracket or guide to receive the ends of two or more connecting bars or links
which said connecting bars work one above another in a parallel position and at an
angle to the back of the lamp so as to give the parallel motion to the lamp and at
the same time dispense with the objectionable indiarubber or other linings.
2. To a method for fixing or fastening the collar containing the lens in that part
technically called the bell at the front of the lamp by means of a groove impressed
into the outer circumference of the bell and a flat spring fastened on the bell
opposite to the groove, by this means the lens can be removed quickly and easily
from the lamp for cleaning and other purposes and at the same time give a neater
appearance to the lamp.
3. To a method for holding or fastening the lamp to a cycle or any other support,
by means of a spring clip, instead of the present mode of fastening with indiarubber
lining.
Dated this 18th day of November 1893.
GUSTAVE WILHELM MÖHRSTÄDT.
GUSTAVE WILHELM MÖHRSTÄDT, of 42 Howard Street, in the City of
Birmingham Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention relates to lamps or lanterns for cycles, carriages or portable
lanterns, and has reference to a more efficient durable and lighter support or carrier

page_text: •
for cycle or other lamps (technically called the guide, that is, that part or portion
of the lamp which is attached to the back of the lamp at the one end, and formed to
receive the bracket or holder at the other). This I accomplish by means of two or
more pieces of metal, fixed to the back of the lamp and formed to receive the
bracket or holder; these pieces of metal are bent to form a channel or groove in
which work the springs, and both the said pieces of metal have their outer edges
or ends formed into a bracket or guide to receive the ends of two or more rods or
connecting bars, which said rods or connecting bars work one above another in a
parallel position and at an angle to the back of the lamp, so as to give the parallel
motion to the lamp, and at the same time dispenses with the objectionable india-
rubber or other linings.
Also a method for fixing or fastening the lens in the bell at the front of the lamp,
by means of a groove impressed into the outer circumference of the bell, and a flat
spring fastened on the bell opposite to the groove, by this means the lens can be
removed quickly and easily from the lamp for cleaning or other purposes, and at
the same time give a neater appearance to the lamp.
Also a method for holding or fastening the lamp to a cycle or any other support
by means of a spring clip arrangement instead of the present mode of fastening
with india-rubber lining.
In order to more fully explain this my invention, I have appended hereunto an
illustrative sheet of drawings upon which are figures and numbers of reference,
similar numbers referring to the same thing or part, throughout the several views.
Fig. 1, is a part sectional side elevation of this my improved lamp.
Fig. 2, is a plan view of the connecting bars, and attachment device.
Fig. 3, is a rear elevation of the attachment device.
Fig. 4, is an enlarged detailed sectional view of the joint by which the connecting
bars are attached to the brackets.
Fig. 5, is a detailed sectional view of the bell front, with the lens removed.
Fig. 6, is a detailed sectional view of the lens.
7, is a plate which is bent and shaped so as to form the brackets 7 and 7º, and
which is secured to the back of the body of the lamp 8, by soldering or otherwise.
To these brackets are connected the bars 9 and 10, which in their turn are further
attached to the attachment bracket or plate 11. These bars are jointed to the
brackets 7 and 7b and to the plate 11, by first indenting them as shown in detail
in Fig. 4, so that on the reverse side a rounded projection is formed which shall
correspond to and fit into a similar indentation made in the brackets 7, 7b, and
plate 11.
These bars are now further secured to each other and in their position
by means of the adjusting pin 12, having the screw nut 13. This pin is made fast
(by soldering or otherwise) in the bar at 9" (see Fig. 2) and is free to move in a
plain hole in the bar at 10, hence when the nut 13, is screwed up the bars on either
side are forced outwards so that the rounded projections are pressed into the
indentations upon the plate 11, and the brackets 7, and 7b, until the required
frictional contact is attained. This friction can be adjusted from time to time.
14, is the bell of the lamp, in which is formed the groove 15, which is carried for a
required distance around its interior.
At the opposite side of the bell an opening or slot 16, is formed, to receive the
spring 17, which is secured to the body of the bell at 18. 19, is the lens which is
suitably prepared at its periphery so that one side may be passed into the groove
and then the other side pressed in against and under the spring until the latter bas
secured it as seen in Fig. 1. When required the lens may be readily withdrawn
by the reverse action, that is, by first raising the spring 17, and pulling forward
the lens.
Again. 20, is the securing pin, which is made fast to the plate 11, and upon
which is carried the spring 21, the tendency of which latter is to expand itself
between the plate 11, and the clip 22, so that the latter is always forced outwards
by the spring 21. This clip is made longer than wide, its width being limited so
that when turned longitudinally with the slot or opening 23, upon the lamp

page_text: carrier 24 (shown in dotted lines in Fig. 3) it may be readily passed therethrough,
then turned at right angles as shown in Fig. 3, when the whole may be firmly
gripped to the carrier 24, by the screw nuts 25 and 26. One of such nuts only may
Le used if desired, but I find it preferable to use the fly nut 26, as a lock nut upon
the nut 25.
27, is a spring which acts between the body of the lamp and the bars 9 and 10,
and the rear part mechanism in the well known manner by which the body of the
lamp is always held in an upward direction, so as to accommodate the vibrating
effects of travelling. I am aware that joints for the parallel motion or anti-
vibration devices of cycle lamps and the like have been formed by stamped projec-
tions fitting into stamped indentations in combination with certain other parts, and
therefore I do not claim such joints.
Having now particularly described and ascertained the nature of this my said
invention, and the manner in which the same is to be performed, I declare that
what I claim is :-
1. In lamps such as are herein described, the combination with the body of the
lamp, and the connecting bars 9 and 10 the plate 11, and the brackets 7 and 7b, of
the adjusting screw pin 12, all substantially as set forth and shown.
2. In lamps such as are herein described, the combination with the bell 14, of
the groove 15, and spring 17, and removable lens 19, all substantially as set forth.
and shown.
3. In lamps such as are herein described, the combination with the attachment
plate 11, of the pin 20, spring 21, clip 22, and nuts 25 & 26, all substantially as set
forth and shown.
Dated this 17th day of August 1894.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.