Improvements in or relating to Brackets or Holders for Velocipede and other Lamps.
Year: 1893

page_text: Date of Application, 29th July, 1893
Complete Specification Left, 17th Apr., 1894-Accepted, 19th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to Brackets or Holders for Velocipede
and other Lamps.
I, JOHN JAMES HENRY STURMEY of No. 19 Hertford Street Coventry in the
County of Warwick Journalist do hereby declare the nature of this invention to be
as follows:-
My invention relates to brackets or holders provided with a tongue or the like
for carrying velocipede and other lamps provided with a socket or the like to receive
such tongue or the like and has for its object the production of a simple and
efficient bracket at small cost, that may be readily attached to and detached from
the velocipede or other object and may automatically hold itself, and the lamp
which it is constructed to carry without any assistance beyond the inherent
properties of such bracket and lamp.
I will describe my invention as applied to the carrying of a lamp of the kind
having a socket to fit on to the tongue of a lamp bracket and commonly known as
the headlamp, on the handle bar stem or head tube of a velocipede of the kind
commonly known as the rear driving safety bicycle." I take a strip of flat spring
steel or other suitable material and of suitable dimensions, and bend it about the
centre above its greater axis so as to double it flatwise. The bend in the centre
takes the shape of a curve forming more than a semi-circle and less than a
complete circle and having a radius slightly less than the radius of the handle bar
stem or head tube on to which the bracket is to be fitted; and at each end of this
curve there is another curve in the opposite direction causing the two parts of the
strip to be parallel or approximately parallel to each other. The doubled strip is
preferably somewhat tapered from the curve to a point at a convenient distance
from the bend and here each part is turned through 90° on its own axis, that is,
from the vertical to the horizontal. The horizontal portions are then bent at such
an angle to the remainder of the strip that they will be in a vertical or approxi-
mately vertical position when the bracket is in place on the velocipede and form
tongues to fit into the socket on the lamp. Finally the tongues are bent back upon
themselves along their greater axes at an acute angle. The bracket is placed on
the handle bar stem or head tube of the velocipede so that the stem or tube is
partially embraced by the bent part in the centre of the strip; but as the radius of
the bend is less than the radius of the stem or tube, the bracket has a spring grip
on the stem or tube and the "arms or tapered parts of the bracket next to the
before mentioned curves depart at an angle instead of parallel from such curves so
that the vertical parts of the tongues measure more between their extreines
horizontally than the interior of the socket on the lamp when similarly measured.
The difference in the radii of the bracket and the stem or tube respectively and the
elasticity of the metal are made sufficient to hold the bracket in its position without
compressing bolts or nuts or other extrinsic assistance. The tongues are then
caused to approach each other sufficiently to enter the socket of the lamp.
This springs the arms of the bracket back into a more or less parallel position
and increases the grip of the bracket on the stem or tube enough to enable it to
carry the lamp.
ور
When the lamp socket is placed on the tongues they are partly released and
grip the socket by their springing outwards so far as the limits of the socket allow.
The socket is further gripped by the acutely bent back parts of the tongues,
the socket being of such dimensions as to close them inward from their normal
positions.

page_text: The vertical parts of the tongues are so set as to lie more or less evenly in one
plane when enclosed by the socket of the lamp; and when a brake rod or tube is
carried in front of the head of the machine the bracket is preferably arranged to
allow such rod or tube to pass between the arms thereof.
Dated this 28th day of July 1893
W. B. MAXFIELD,
Applicant's Agent.
•
COMPLETE SPECIFICATION.
Improvements in or relating to Brackets or Holders for Velocipede
and other Lamps.
I, JOHN JAMES HENRY STURMEY of No. 19, Hertford Street, Coventry in
the County of Warwick, Journalist, 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 invention relates to brackets or holders provided with a tongue or the like
for carrying velocipede and other lamps provided with a socket or the like to
receive such tongue or the like, and has for its object the production of a simple
and efficient bracket at small cost that may be readily attached to and detached
from the velocipede or other object and that may automatically hold itself and the
lamp which it is constructed to carry without any assistance beyond the inherent.
properties of such lamp and bracket.
I will describe my invention as applied to the carrying of a lamp, of the kind
having a socket to fit on the tongue of a lamp bracket and commonly known as the
"head" lamp, on the handle bar stem of a velocipede of the kind commonly known
as "the rear driving safety bicycle"; and in order that the same may be well
understood I append a sheet of drawings which show the general form and arrange-
ment of the parts thereof when so applied, but modifications may be made without
departing from the spirit of my invention.
Similar numerals refer to similar parts throughout the several views :-
Figure 1 is a view in elevation of a strip suitable for forming a lamp bracket
constructed according to my invention and adapted to be attached to the handle
bar stem of a velocipede.
Figure 2 is a plan of the strip doubled.
Figure III is a side view of the strip doubled and having certain parts twisted.
Figure IV is a side view of the finished holder in place on the handle bar stem.
Figure V is a plan of the same viewed from a point or. points perpendicular to
the line 0-0 in Figure IV.
Figure VI is a plan of the same viewed from a point or points perpendicular
to the line 1-1 in Figure IV with a socket of a lamp embracing the tongues of
the holder.
I take a strip such as (Figure 1) of flat spring steel or other suitable material
and of suitable dimensions and bend it about the centre along its greater axis so
as to double it flatwise as shewn in Fig. II. The bend 2-3 in the centre takes
the shape of a curve forming more than a semi-circle and less than a complete
circle and having a radius 4-2 slightly less than the radius 4-5 (Fig. V) of the
handle bar stem 6 to which the holder is to be attached; and at each end of this
curve 2-3 I make another curve, (2--7 and 3-8 respectively), in the opposite
direction, so as to cause the two parts 9, 11, 13 and 10, 12, 14 of the strip to lie
parallel or approximately parallel to each other. The doubled strip is preferably
somewhat tapered from the curve 2-3 to a point at a convenient distance from
the bend and here each part is turned through 90 degrees on its own axis, that is
from the vertical to the horizontal, as shewn in side elevation and in plan in
Figures III and V respectively. The horizontal portions 11, 13 and 12, 14 are

page_text: then bent up at or near the points 15, 16 at such an angle to the remainder of
the strip that they will be in a vertical or approximately vertical position when the
bracket is in place on the velocipede, and form tongues to fit into the socket 20.
on the lamp 19 (Fig. VI). Finally the tongues are bent back upon themselves.
along their greater axes so that the parts 13, 14 lie at an acute angle to the
parts 11, 12 respectively.
33
To attach the bracket, it is placed on the handle bar stem 6 so that the stem is
partially embraced by the bent part 2-3 in the centre of the strip (Fig. V);
but as the radius 4-2 of the bend is normally less than the radius 4-5 of the
stem 6, the bracket has a spring grip on the stem; and the "arms or tapered!
parts 9-10 of the bracket next to the before mentioned curves 2-7 and 3-8.
depart at an angle instead of parallel from such curves so that the vertical parts.
of the tongues 11, 12 measure more between their extremes 17, 18 (Fig. V).
horizontally than the interior of the socket 20 of the lamp 19 when similarly
measured. I make the difference in the radii 4-2, 4-5 of the bracket and stem.
respectively and the elasticity of the metal sufficient to hold the bracket in its
position without .compressing bolts and nuts or other extrinsic assistance. The
tongues 11, 13 and 12, 14 are then caused to approach each other sufficiently to.
enter the socket 20 of the lamp 19. This springs the arms 9, 10 of the bracket back
into a more or less parallel position as shewn in Fig. Vi and increases the grip of the
bracket on the stem 6 enough to enable it to carry the lamp. When the lamp
socket 20 is placed on the tongues 11, 13 and 12, 14 they are partly released and
grip the socket by their springing outwards so far as the limits of the socket allow..
The socket is further gripped by the acutely bent back parts 13, 14 of the tongues,
the socket being of such dimensions as to close them inward from their normal
positions.
To detach the bracket, the socket 20 of the lamp 19 is first removed from the
tongues 11, 13 and 12, 14, this allows the arms 9, 10 to resume their relatively
angular position, the bracket may then be readily pushed back and sprung off the
stem 6. The vertical parts 11, 12 of the tongues are preferably so set as to lie
more or less evenly in one plane when enclosed by the socket of the lamp; and
when a brake rod or tube, such as 21 (Figures IV, V and VI) is carried in front
of the head of the machine the bracket is preferably arranged, by bending or
otherwise forming the parts, to allow such rod or tube to pass between the arms.
thereof. If desired the bent back ends 13 and 14 may be dispensed with; and the
bracket may be built up of more than one piece. The bracket may be adapted to
be attached to the head tube or other suitable part of a velocipede or to other
suitable objects and in such applications of my invention I proceed as in applying
the same to a bracket for carrying a head lamp on the handle bar stem of a rear
driving safety bicycle as herein before described but making any modifications that
may be required by such applications.
I prefer to employ spring steel for the manufacture of my lamp bracket and I
am careful to select a class of metal that will allow of making the acute bends.
between the parts 11, 12 and 13, 14 respectively of the tongues (if the ends 13, 14
are employed) and that will, when hardened and tempered, possesss sufficient
strength and elasticity. The strip may be suitably perforated to reduce weight, or
the bracket may be constructed of a suitable quality of narrow strip material, wire
or the like arranged more or less in skeleton or outline form.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A bracket or holder, provided with a tongue or the like, for carrying a lamp,
provided with a socket or the like to receive such tongue or the like, on the handle
bar stem, head tube or other suitable part of a velocipede or other object, and made
from a single or built up strip of metal or other suitable material and formed so
that it holds itself on the said handlebar stem, head tube or other suitable part of a

page_text: velocipede or other object without any assistance beyond the form and elasticity of
the holder substantially as herein described.
D
2. A bracket or holder, provided with a tongue or the like, for carrying a lamp,
provided with a socket or the like to receive such tongue or the like, on the
handle bar stem, head tube or other suitable part of a velocipede or other object, and
made from a single or built up strip or the like of metal or other suitable material
and formed so that it holds itself and the said lamp on the said handlebar stem, head
tube, or other suitable part of a velocipede or other object without any assistance
beyond the form and elasticity of the holder and the form of the socket or the like,
substantially as herein described.
3. In the kind or kinds of bracket or holder referred to in Claims I and II,
making the same readily attachable to and detachable from the velocipede or other
object substantially as hercin described.
4. A bracket or holder for velocipede and other lamps constructed from a single
piece of suitable elastic material and having a bend such as 2-3, adapted to engage
with the stem 6 or other suitable part of the velocipede or other object, arms such
as 9 and 10, tongues such as 11 and 12 or 11, 13 and 12, 14 adapted to engage with
the socket or the like of the lamp, substantially as and for the purpose or purposes
set forth.
5. The improvements in or relating to brackets or holders for velocipede and
other lamps substantially as herein described, and as illustrated.
Dated this 16th day of April 1894.
WILLIAM BESTWICK MAXFIELD,
Registered Patent Agent,
19, Bowling Green Street, Leicester, Applicant's Agent.