Improvements in Cycle and other Lamps.
Year: 1893

page_text: Date of Application, 20th Apr., 1893
Complete Specification Left. 14th June, 1893-Accepted, 15th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Cycle and other Lamps.
WILLIAM HENRY FREEMAN & JOHN THOMAS & GEORGE ELSMORE 1 King
Alfreds Place Broad Street Birmingham Lamp Manufacturers do hereby declare
the nature of this invention to be as follows:-
:-
Our invention of improvements in cycle lamps & other lamps consists of the
bearings or joints connected with the back part of the lamp, being made of wood or
other hard substance. Hitherto these parts have been made of india rubber or
other soft substance, we therefore claim by this invention, that the lamp is more
free in action, will wear longer & not so liable to get out of repair.
11 1000
WILLIAM HENRY FREEMAN.
JOHN THOMAS.
GEORGE ELSMORE.
i
COMPLETE SPECIFICATION.
Improvements in Cycle and other Lamps.
We WILLIAM HENRY FREEMAN, JOHN THOMAS, and GEORGE ELSMORE
trading as Freeman Thomas & Co. of 1, King Alfreds Place Broad Street
Birmingham in the County of Warwick Lamp Manufacturers, 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 reference
being had to the drawings accompanying this Specification and to the figures and
letters shewn thereon:-
Our invention relates to lamps for bicycles tricycles and other velocipedes and
vehicles (and also to other lamps) our improvements being directed essentially to
the washers, blocks bearings or joints connected and interposing between the
carrying arms and the carrying sleeve portions, attached at the back of the lamp
and to the socket which holds the lamp upon the bracket of the cycle or other
vehicle. The object that we have in view is to provide a bearing that shall not be
liable to get out of order and that shall prevent vibration or jarring of the lamp
and its connecting parts when the machine or other vehicle is in motion.
In cycle lamps of all kinds it is necessary to interpose some kind of bearings,
cushions, or washers, between the parts liable to cause vibration etc., so as to cut off
the contact of metal to metal, and the usual methods employed have consisted in
interposing washers, tubes or cushions of india rubber, or other soft or yielding
material, between the ends or joints of the carrying arms, and the carrying
brackets connected at the back of the lamp and socket, also between the metallic
sleeves and crossbars. These india rubber or other "soft" washers or cushions
are liable to very quickly perish, by exposure to the weather, from the heat of the
lamp or other causes, the result being that rattling and vibration of the lamp and
its attachments takes place, and instead of the carrying arms working with a
parallel motion, lateral play and oscillation of the lamp is caused, thus in order to
keep the action perfect, the washers tubes or cushions have frequently to be
renewed which is a disadvantage. By our improved method, instead of india
rubber washers tubes or cushions of such like material, or other soft yielding
material we construct them of a material of a directly opposite nature to the above,
the substance we prefer to use being of hard wood, such as lignum vitæ, or other
suitable hard wood, or of ivory, bone, compressed paper, or other hard substance..

page_text: Figure 1. is a side elevation of a cycle lamp and connections.
Figure 2. shows a back elevation of same...
Figure 3. shows a plan of the bracket carrying arms and crossbars of same
passing through the bearings.
Figure 4. a side view of a bearing or washer.
Figure 5. a plan of same.
Figure 6. is a side view and plan of an alternative method of making the bearing.
Figure 7. a plan showing the alternative method of bearing in section in position
upon the crossbars of carrying arms.
For convenience sake we have illustrated our improvements as relating to cycle
lamps though be it understood such improvements will equally apply for like
purposes in other lamps, where washers or bearings may be required.
Similar letters of reference relate to similar parts on all the figures.
The lamp A. is carried and supported in the ordinary manner by parallel bracket
carrying arms B. or other suitable arms, (we prefer to use such as shown). The
cross bars B' of the carrying arms pass through the washers, blocks, or bearings C.
composed of lignum vitæ or other hard wood, ivory, bone, compressed paper, or
other suitable hard material as stated; these washers or bearings C. may be
countersunk and fit into or are encased within the transverse metallic sleeves D. D'
connected to the lamp A. and to the carrying socket E. thus effectively preventing
any contact between the metallic carrying arms B. B with the metallic
sleeves D. D¹.
As an alternative method the bearings C. instead of being made as shown in
Figures 1 to 5. may be constructed of one piece forming cylinders C³ Figures 6 & 7,
in which case they will entirely encircle the cross bars B₁ of the carrying brackets,
from end to end transversely; in either form the action and result will' be
practically the same.
By these means all possibility of the vibration or jarring of the lamp and its
adjacent parts is entirely obviated, and lateral play or motion of the carrying
arms, and friction of the parts between the cross bars of the carrying arms, and the
metallic sleeves is absolutely prevented and the lamp is much freer in its action
than by the methods hitherto used.
Our improved washers, bearings, or joints will be found to wear much longer than
other bearings, hitherto used or such as those of a soft yielding nature and
moreover will not be liable to get out of repair, as they are practically indestructible
and non-perishable from wear, exposure to weather etc., or from the heat of
the lamp.
In order to make the carrying arms work easily and freely within our improved
bearings, by using a few drops of oil on the parts (with which all riders of cycles:
are provided) free action of the lamp is given and possible friction reduced to a
minimum.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we wish it to be understood
that we do not limit ourselves to the precise arrangement and construction of the
parts herein set forth, as we may sometimes deem it necessary to vary the same as
occasion may demand without departing from the essential features and general
principle of our invention. We declare that what we claim is :-
"
Firstly. The combination with a cycle lamp. (or other lamp) and its accessory
parts of washers, blocks, bearings, or joints, composed of lignum vitæ or other
hard wood, or of ivory, bone, compressed paper, or other hard and suitable material;
such washers, blocks, bearings, or joints being interposed between the carrying
bracket arms and the metallic sleeve connections of the lamp, and so preventing the
contact of the metallic parts each to each, thereby entirely obviating vibration
jarring or friction, substantially and in manner as herein more fully set forth and
described.

page_text: Secondly. In a cycle lamp (or other lamp) and its attachments the combination
of cylindrical bearings as shown in Figures 6 & 7. composed of either of the hard
substances or their equivalents above described, which cylindrical bearings are
encased by and interpose between the metallic sleeves, and the metallic carrying
arms which pass through the said cylindrical bearings substantially and for the
purpose as herein more fully set forth and described.
Thirdly. We claim the improvements in the washers, blocks, or bearings, for
cycle lamps and other lamps where washers, blocks, or bearings are or may be used
for the purposes substantially as herein set forth.
Dated this 13th day of June A.D. 1893.
EDWARD J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicants.