IMPROVE- MENTS IN SUSPENSION LAMPS FOR BICYCLES, TRICYCLES, AND LIKE VEHICLES."
Year: 1882

page_text: LETTERS PATENT to Henry Salsbury, of 125 and 126, Long Acre, in the
'
County of Middlesex, Lamp Manufacturer, for an Invention of "IMPROVE-
MENTS IN SUSPENSION LAMPS FOR BICYCLES, TRICYCLES, AND LIKE VEHICLES."
PROVISIONAL SPECIFICATION left by the said Henry Salsbury at the
Office of the Commissioners of Patents on the 1st February 1882.
HENRY SALSBURY of 125 and 126 Long Acre in the County of Middlesex
Lamp Manufacturer IMPROVEMENTS IN SUSPENSION LAMPS FOR BICYCLES,
TRICYCLES, AND LIKE VEHICLES.
The object of this Invention is certain detail improvements in suspension lamps
for bicycles, tricycles, and other vehicles. Said improvements consist
First Of a hooked strap on or from the top, said hook being of an irregular
segment of a circle to slightly grasp the axle of the wheel when hooked, on and
used in conjunction with the upper portion of the front door which is curved to
lap a short distance over it and held by a spring catches fitted on the segmental
hook. The Invention consists
Secondly Of a lip on the door capable of being fixed at any desired position of
a slot by a thumb button or screw head to punch or nip the under portion of the
wheel axle to prevent the lamp jumping when the vehicle is going over rough or
uneven ground. It consists
Thirdly Of stump ends screwed into a threaded socket at the outer end of the
guide rods to bear against the hub.
Fourthly It consists of flanges at the upper portion of the oil well or reservoir
to slide in grooves provided on the inner side walls of the lamp body to suspend
the oil well and burner from the upper part and to leave a clearance at the bottom
which is provided with air holes instead of having such holes at the sides.
Fifthly. It consists of a spring catch fitted at the side of the lamp body to
retain the oil well and burner in position while the lamp is being put into the
machine.

page_text: Sixthly It consists of a bow spring at the inner side of the door to press against
a knob on the oil well to push it in and to prevent it shaking while the machine
is running and as a buffer spring to force the door open when the top catches are
released.
Seventhly It consists of a weighted stem fixed on the top of the lamp to prevent
it oscillating while travelling.
The door is hinged at the bottom of the lamp body and so arranged that the
well can be filled or the wick trimmed without removing it from the machine as at
present:
For suspension head-lamps I form the side plates of the strap of metal tubes
with bent ends into which leathers are arranged in combination with end plates as
tubes and I fit a spring between from opposite corners to take up the jolting motion
which would otherwise to given to the lamp body.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Salsbury in the Great Seal Patent Office on the 1st
August 1882.
HENRY SALSBURY of 125 and 126 Long Acre in the County of Middlesex
Lamp Manufacturer IMPROVEMENTS IN SUSPENSION LAMPS FOR BICYCLES,
TRICYCLES AND LIKE VEHICLES.
The object of this Invention is certain detail improvements in suspension lamps
for bicycles, tricycles, and other like vehicles, said improvements consist,
First, as shown at Figures, 1, 2 and 3 of the annexed Drawings, of a hooked
strap A on or from the top B of the lamp, said hook A being of an irregular seg-
ment of a circle to slightly grasp the axle C of the wheel when hooked on and
used in conjunction with the upper portion D of the front door E which is curved
to lap a short distance over it and be held by spring catches F F fitted on the
segmental hook A. The leather A' in the top B' fills the space between the two
edge flanges, whereby a broad level bearing surface on the axle C is produced, the
touch of the leather A¹ on the axle being even throughout, giving steadiness from
the fair seating it obtains.
The second part of the Invention is also shown in Figures 1, 2 and 3 of the
Drawings, consisting of a lip G on the door E capable of being fixed at any desired
position, of a slot H by a thumb button or scrow head I to pinch or nip the under
portion of the wheel axle C to prevent the lamp jumping when the vehicle is going
over rough or uneven ground. Another advantage of this is, the lamp can be set
to fit any size or diameter of axle or hub, without cutting the leather as is now
generally done. The lip G may be fitted in the upper rear portion of the lamp.
The door is hinged at the bottom of the lamp body and so arranged that the oil
well can be filled or the wick trimmed without removing it from the machine as at
present.
The third part of the Invention, also shown in Figures 1, 2, 3 and in Figure 4 of
the Drawings consists of stump_ends J screwed into a threaded socket K at the
outer ends of the guide rods L L to bear against the hub of the wheel. The
threaded rods are adjustable in caps M M fixed on the top B' and can be locked at
the desired positions by lock nuts N, N. Instead of threading the rods L L above
mentioned they may be plain or fluted and be passed into recesses formed in the
top B' and be pinched firmly in position by a plate or washer P and screw nut N
working on the threaded stem Q, said nut N fixing both guide rods at once. This
will be understood by reference to Figures 4, 5, 6 and 7 of the Drawings. The
advantage of this plan is:-The facility of adapting the lamp to suit any width
of hub rings to prevent side motion of the lamp when the machine is travelling.
The fourth part of the Invention consists of flanges R R at the upper portion of
the oil well or reservoir S to slide in grooves provided on the inner side walls T
of the lamp body to suspend the oil well and burner from the upper part and to
leave a clearance U at the bottom which is provided with air holes instead of
having such holes at the sides as in lamps generally. The advantage gained by
suspending the oil reservoir is-The dust which enters the lamp with the air
to support combustion is retained under the oil well and is thus prevented clogging
the burner and diminishing the flame, neither is the flame affected by wind as
with lamps having side openings. A spring catch V fitted at the side of the lamp
body retains the oil well Sand burner in position while the lamp is being put into
the machine. The advantage of this is:-Should the lamp be swung while the
door is open the oil well is prevented from sliding forward or otherwise shifting
its position.

page_text: The fifth part of the Invention is shown in Figures
and 5 of the Drawings.
It consists of a bow spring W at the inner side of the door E to press against a
knob X on the oil well S to push it in and to prevent it shaking while the machine
is running and as a buffer spring to force the door E open when the top catches
F F are released.
The sixth part of the Invention is shown in Figure 4. It consists of a
weighted stem Y fixed on the top B of the lamp to prevent it oscillating while
travelling.
For head lamps I form the plates a a¹ of the strap, of metal tubes with bent
ends b b as at Figures 1 and 2 of the Drawings into which leathers are arranged
in combination with end plates c c as tubes and I fit an adjustable spring & and
nute on a stem or rod between from opposite corners to take up the jolting
motion which would otherwise be given to the lamp body. The lamp thus
constructed serves as a head or a hub lamp.
Having now described the nature of my said Invention and in what manner
the same is to be performed I declare that I claim as detail improvements in bicycle
and tricycle lamps.
First. Forming the hook A at the upper part so as to sit on the axle and
slightly grasp it and using therewith a lapped portion of the front door as and for
the purpose set forth and as shown in the annexed Drawings.
Secondly I claim. Fitting an adjustable lip G in or on the door or in the upper
rear portion as and for the purpose described and substantially as shown in the
Drawings.
Thirdly I claim -The plain or fluted rods with stump ends screwed in as described
and as shown in the annexed Drawings.
Fourthly I claim :-The appliances N P Q and method of fixing the rods of the
two buffers J J as shown at Figure 4. 5. 6 and 7.
Fifthly I claim-Fitting a bow spring W on the inner surface of a lamp door
as and for the purposes described and as shewn-in the annexed Drawings._
Sixthly I claim-The employment of a weighted stem at or from the upper part
of a suspension lamp as set forth and as shewn in the annexed Drawings.
Seventhly I claim-Any two or more of the several details hereinbefore
mentioned in combination, in or to a suspension lamp used with a bicycle,
tricycle, or other like vehicle as set forth.
Eighthly I claim :-Adjusting the spring d d of a head suspension lamp by a
threaded rod and nut e as described and as shown at Figure 1 of the annexed
Drawings.
In witness whereof. I the said Henry Salsbury have hereunto set my hand
and seal this Thirty first day of July. in the year of our Lord One
thousand eight hundred and eighty two.