Improvements in Lamp Brackets for Bicycles and the like.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Lamp Brackets for Bicycles and the like.
I, WILLIAM HANLON, M.A., of the Rectory, Innishannon, Co. Cork, Ireland,
Clerk in Holy Orders, do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to afford a means whereby the angle formed
by the upright part of the lamp bracket & the handle-bar-stem, or fork,-as
the case may be, of a bicycle or such like machine can be altered both to suit
the rake of the head, or fork, & to admit of the light of the lamp being
thrown at a variable angle.
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To effect this I provide a bracket with two parallel arms fitted to pass at
either side of the stem, so that the latter lies between them.-Through holes
in the ends of these arms passes a bolt with a nut behind the stem. In each
of these arms between the upright part & the ends is a vertical slot & a second
bolt with a nut passes through them in front of the stem. Between each of
these arms & the stem is placed a piece curved to take the latter, & presenting
a flat surface to the inside of the arms & with ends shaped to engage with the
bolts.
It is obvious that the bolts & nuts & the holes & slots admit of the bracket
being tightened on the stem at a variety of angles thereto.
Or, in an alternative arrangement the arms may be shorter & hinged by means
of a bolt & nut to the front ends of a clip encircling the stem; the tightening
of the said bolt & nut both securing the clip to the stem & holding the bracket
at the desired angle.
Analogous arrangements may be employed for attaching the bracket to the
fork with a like power of adjustment.
I, WILLIAM HANLON, M.A., Clerk in Holy Orders, of the Rectory, Innishannon,
County Cork, Ireland, 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:-
The object of my invention is to afford means whereby the angle formed by
the upright part of the lamp bracket and the handlebar stem, fork, or other

page_text: part of the bicycle or the like to which the lamp bracket is to be secured, can
be altered, both to suit the rake of the stem, fork or the like, and to admit of
the light of the damp being thrown at a variable angle.
And in order that the manner in which I attain my object may be properly
understood I will describe the same with the aid of the accompanying draw-
ings, wherein
Figures I and II show a side elevation and plan, respectively, of a lamp
bracket constructed according to my invention.
Figure III shows side and end elevations of a detail modification, and
Figure IV shows a side elevation of a further modification.
Like numerals indicate like parts throughout the drawings.
Referring to Figures I and II, I construct the bracket with two parallel
arms 2, 2 adapted to pass at either side of the handlebar stem or other sup-
port 3. Through holes in the ends of these arms I pass a bolt 4 provided with
a nut 5, the said bolt lying behind the stem or the like 3. In each of the
arms 2,2 between the upright part or tongue 6 and the ends, I make a slot ĭ,
preferably curving the said slot with the axis of the bolt 4 as centre. Through
the slots 7, I pass a second bolt S provided with a wing or other nut 9, the said
Bolt lying in front of the stem or the like 3. Between each of the arms 2, 2
and the stem or the like 3 I place a saddle piece 10, the inner face of which
is shaped to fit against the stem 3, and the outer face of which presents a flat
surface to the inside of the arm 2, the ends 11, 12 being recessed to engage
with the bolts 4 and S.
By assembling the parts as shown and tightening the nuts 5 and 9 on their
respective bolts, the bracket is firmly secured to the stem or the like 3. To
alter the angle or tilt of the bracket, the nut 9 is slackened and the tongue end
of the arms 2, 2 is raised or lowered as may be required; the adjustment is
locked by retightening the nut 9.
The positions of the holes and slots through which the bolts 4 and 8 respec-
tively pass may be exchanged. Instead of forming the slots 7 in the arms 2,
the recesses at the front or rear ends of the saddle pieces 10 may be slotted or
extended, as shown at 11 in Figure III. The said saddle pieces (like the arms
and tongue) may be conveniently made from sheet metal, also as shown in
Figure III.
As a further modification, the arms 2, 2 may be shortened and hinged by a
bolt and nut 13, to the front edges of a clip 14 encircling the stem or the like 3,
the ends of the arms lying outside the ends of the clip 14. Tightening the said
bolt and nut both secures the chip to the stem and holds the bracket at the
desired angle. The contacting surfaces of the clip and arms may be roughened,
or other well-known means may be adopted, to increase the friction between
these parts. Analogous means may be employed for attaching the bracket to
the steering fork or other suitable part of the bicycle or the like with similar
powers of adjustment. The bracket may be constructed with only one arm, if
preferred, to facilitate attachment to the stem of a bicycle having a plunger
brake or for other reasons. In this case a strap washer or like provision would
be made to receive the bolts as a substitute for the second arm.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. A lamp bracket, for bicycles and the like, provided with means for adjust-
ing the angle formed by the upright part thereof and the part of the bicycle or
the like to which the bracket is adapted to be secured.
•
2. A lamp bracket, for bicycles and the like, constructed, arranged and adapted
to operate substantially as herein described with reference to Figures I and II
of the accompanying drawings.
3. A lamp bracket, for bicycles and the like, constructed, arranged and adapted

page_text: to operate substantially as herein described with reference to Figure IV of the
accompanying drawings.
4. The modification described with reference to Figure III of the accom-
panying drawings.
Dated this 12th day of August 1899
DOUGLAS LEECHMAN, M.Cy.E.I.,
Fellow of the Chartered Institute of Patent Agents,
18, Hertford Street, Coventry,
9, Exchange Chambers, New Street, Birmingham, and
75, Chancery Lane, London, W.C.,
Patent Agent for the Applicant.