IMPROVEMENTS IN CONNECTING LAMPS TO THE CHARTS OF DIAVO TINZAL DO חווה ADITAD
Year: 1882

page_text: LETTERS PATENT to Joseph Lucas of Birmingham in the County of Warwick
Manufacturer for an Invention of "IMPROVEMENTS IN CONNECTING LAMPS TO
THE CHARTS OF DIAVO TINZAL DO
חווה
ADITAD
PROVISIONAL SPECIFICATION left by the said Joseph Lucas at the Office
of the Commissioners of Patents on the 19th September 1882.
JOSEPH LUCAS, of Birmingham in the County of Warwick, Manufacturer
"IMPROVEMENTS IN CONNECTING LAMPS TO THE SHAFTS OF BICYCLES, TRICYCLES
AND OTHER VELOCIPEDES AND TO OTHER SHAFTS"
My invention has reference principally to the connecting of lamps to the shafts
of bicycles but is also applicable to the connecting of lamps to the shafts of tricycles
and other velocipedes and also to the connecting of lamps to rotating shafts
generally.
I will describe my invention as applied to the connecting of a lamp to the shaft
of a bicycle. To the middle of the shaft of the bicycle I fix a tubular collar having
a flange at each end. This collar is made in two halves hinged or jointed together,
After it has been closed upon the shaft its unjointed ends are secured together by
screws or otherwise and the said collar is thereby fixed to the shaft. Upon the
said fixed tubular collar is a light tubular frame which frame turns freely on the
said collar. The said tubular frame is made in two halves jointed together and
when put in its place on the tubular collar its unjointed ends are connected
together by screwing or otherwise The said tubular frame seats itself on
shoulders formed on the flanges of the tubular collar and while capable of freely
rotating thereon is incapable of lateral motion.
In attaching the lamp to the shaft of the bicycle the jointed clip at the head of
the lamp is made to close upon the light tubular frame and on the fastening of the
front of the lamp becomes seated securely thereon. In the travelling motion of

page_text: the bicycle there is little friction between the tubular frame and the collar on
which it works yet sufficient to prevent the inconvenient oscillation occurring when
the lamp can swing freely.
The tubular frame described may be dispensed with. In this case I attach two
ring like springs of steel or other elastic wire to the rear part of the clip of the
lamp. These springs engage in grooves in the flanges at the ends of the tubular
collar fixed on the shaft. These springs are capable of being tightened on the
collar by screws so as to produce any required amount of friction. The lamp can
be opened without liberating the said ring like springs from the collar.
By my invention the side check guards commonly employed to keep the lamp to
the middle of the shaft are rendered unnecessary.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Lucas in the Great Seal Patent Office on the 13th March
1883.
JOSEPH LUCAS of Birmingham in the County of Warwick, Manufacturer.
"IMPROVEMENTS IN CONNECTING LAMPS TO THE SHAFTS OF BICYCLES TRICYCLES
AND OTHER VELOCIPEDES AND TO OTHER SHAFTS "
My invention has reference principally to the connecting of lamps to the shafts
of bicycles, but is also applicable to the connecting of lamps to the shafts of tricycles
and other velocipedes and also to the connecting of lamps to rotating shafts
generally.
I will describe my invention as applied to the connecting of a lamp to the shaft
of a bicycle. To the middle of the shaft of the bicycle I fix a tubular collar having
a flange at each end. This collar is made in two halves hinged or jointed together.
After it has been closed upon the shaft its unjointed ends are secured together by
screws or otherwise and the said collar is thereby fixed to the shaft. Upon the
said fixed tubular collar is a light tubular frame which frame turns freely on the said
collar. The said tubular frame is made in two halves jointed together and when
put in its place on the tubular collar its unjointed ends are connected together by
screwing or otherwise. The said tubular frame seats itself on shoulders formed on
the flanges of the tubular collar and while capable of freely rotating thereon is
incapable of lateral motion
In attaching the lamp to the shaft of the bicycle, the jointed clip at the head of
the lamp is made to close upon the light tubular frame and on the fastening of the
front of the lamp becomes seated securely thereon. In the travelling motion of the
bicycle there is little friction between the tubular frame and the collar on which it
works yet sufficient to prevent the inconvenient oscillation occurring when the
lamp can swing freely.
The tubular frame described may be dispensed with. In this case I attach two
ring like springs of steel or other elastic wire to the rear part of the clip or barrel of
the lamp. These springs engage in grooves in the flanges at the ends of the
tubular collar fixed on the shaft. These springs are capable of being tightened on
the collar by screws so as to produce any required amount of friction. The lamp
can be opened without liberating the said ring like springs from the collar.
By my invention the side check guards commonly employed to keep the lamp to
the middle of the shaft are rendered unnecessary.
I will now proceed to describe with reference to the accompanying Drawings the
manner in which my invention is to be performed.
Figure 1 represents in front elevation, partly in section, a lamp connected to the
shaft of a bicycle according to one of the arrangements of my invention;. Figure 2
represents the lamp partly in side elevation and partly in cross section in the act of
being connected to the shaft; Figure 3 represents a cross section of the flanged
tubular collar and light tubular frame; Figure 4 represents a plan of the tubular
collar and Figure 5 a plan of the tubular frame; Figure 6 represents in front
elevation the same open and Figure 7 represents in front elevation the same closed.
The same letters of reference indicate the same parts, in Figures 1. 2. 3. 4. 5. 6
nd 7.
a is the bicycle shaft and b is the tubular collar fixed to the said shaft a, the said
collar being made in halves which are hinged together at c. The said tubular
collar b has a flange d at each end. After the collar, b has been closed upon the
haft a its unjointed ends are fixed together by the screws e e passing through the

page_text: lugs on the said unjointed ends f is the light tubular frame made in halves jointed
together at The tubular frame f is placed upon the collar b fixed to the shaft a
its ends bearing against the flanges d, d on the said fixed collar. When put in its
place the light tubular frame f is secured to the collar 6 by the screw at h (see
Figure 3).
In the front half clip or barrel i on the hinged front of the lamp is a slot k
through which the projecting joint or knuckle g of the frame f passes when the clip
or barrel of the lamp is closed upon the said frame f.
The frame fis thereby prevented from turning upon the fixed collar b. the latter
on the rotation of the shaft a moving within the said frame f. In the travelling
motion of the bicycle there is little friction between the tubular frame f and the
collar b yet sufficient to prevent the inconvenient oscillation occurring when the
lamp can swing freely.
Instead of making the tubular collar fixed on the shaft and the light tubular
frame enclosed within the clip or barrel of the lamp of separate parts, they may
form one connected article.
This modification is represented in front elevation, partly in section, in Figure 8
and end elevation in Figure 9 attached to the shaft. In Figure 8 the half clip or
barrel on the front of the lamp is shown turned back from the connecting
apparatus; Figures 10 and 11 represent the fixing or connecting apparatus
detached from the shaft.
In this modification the flanges 62 at the ends of the tubular collar 6 fixed on the
shaft a are cut away at 6³ (see Figure 10) for passing the said collar onto the shaft
and the body part of the collar has a jointed flap 64 for closing the collar after it has
been passed onto the shaft. Upon the flanges 62, 62 of the collar b, loose and larger
flanges c, c work. Each of these loose flanges is cut away at one side and is made
in two parts for securing it to the fixed flange 62 of the collar b. The collar b
without the loose flanges is shown in front elevation and end elevation in Figure 10
and the complete connecting apparatus is represented in longitudinal section and
cross section in Figure 11; Figure 12 represents one of the loose collars separately.
After the collar b has been passed onto the shaft and fastened by the flap b* the
loose collars c, c are turned until solid parts of them close the cut away parts in the
flanges b b. The apparatus is thus fixed on the shaft and the clip or barrel at
the head of the lamp is then closed upon the loose outer flanges c, c as described with
respect to the light frame f, the flanges 62 62 of the collar 6 rotating on the motion
of the bicycle or tricycle within the outer flanges c, c which are prevented from
rotating by the clip or barrel of the lamp.
Or the parts of the connected fixing apparatus may be arranged as represented
in plan of underside and end elevation in Figure 13; side elevation in Figure 14;
vertical section open in Figure 15 and end elevation, closed, in Figure 16.
b is the collar fixed on the shaft a and having cut away flanges b³, 63 and a
jointed flap b and c, c are the loose flanges within which the flanges 62, 62 of the
collar 6 work, the outer flanges c, c being connected together by the cross bar d with
which the clip or barrel of the lamp engages. The flanges 62 of the collar 6 and
the loose flanges c, c are engaged together in the manner represented in the section
Figure 15.
Figures 17 and 18 represent the arrangement of my invention in which ring like
springs are fixed to the rear part of the clip or barrel of the lamp; Figure 17 repre-
senting a front elevation of the lamp with the clip or barrel in section attached to
the shaft and Figure 18 representing a side elevation of the lamp with the clip or
barrel in cross section; Figure 19 represents a part of the lamp connection and
Figure 20 a section of one of the ring like springs.
bis the collar made in halves and fixed to the shaft a by screws passed through the
lugs on the said halves (see Figure 19). The flanges 62, 63 of the collar b are made with
circular grooves c, c in which the ring like springs d. d are engaged. Each of the ring
like springs d is connected to a screw pine by loops and the said screw pin works in
a screw box f fixed to the rear half clip or barrel h on the body of the lamp. By

page_text: turning the screws e e, the ring springs d, d may be compressed or tightened upon
the flanges of the collar b so as to produce any required amount of friction, or the
pressure of said springs upon the flanges may be relaxed. In this arrangement,
the collar b is the only part which is permanently fixed to the shaft a, the lamp
itself carrying part of the fixing apparatus. Before the ring like springs d, d can
be passed into the grooves in the flanges on the collar b it is necessary to slightly
relax the pressure on their free ends by turning the screws e, e so as to permit
the said rings to expand and after they have been passed into the grooves in the
flanges of the collar they are again tightened on the said flanges. The half clip or
barrel i on the front of the lamp is furnished with openings which pass over the
heads of the screws e, e when the front of the lamp is closed; or projections may be
made in the half clip or barrel i to pass over the said heads of the screws.
clip or barrel on the head of the lamp may be dispensed with and the ring like
springs d, d and the appliances connected with them be attached directly to the top
of the lamp.
The
Instead of using a complete elastic ring fixed to the rear part of the clip or barrel
on the lamp an inelastic ring made in halves jointed together may be used and the
other parts of the connecting apparatus modified in the manner illustrated in front
elevation (partly in section) in Figure 21; side elevation (partly in cross section) in
Figure 22 and in cross section with the lamp closed in Figure 23; Figures 24, 25,
26, 27 and 28 represent parts of the connecting apparatus.
The same letters of reference indicate the same parts in Figures 21 to 28.
a, b are the halves of the inelastic ring jointed together at c the half ring a being
soldered or otherwise fastened to the inside of the half clip or barrel & on the top
of the body e of the lamp. The jointed ring a, b is represented separately in
Figure 24 and the parts detached in Figure 25. The fixed half a of the ring carries
a guide tube in which a fastening screw g projecting from the head of the lamp
is supported, a stop piece h preventing the fastening screw being withdrawn from
the guide tube (see Figure 23). The inner end of the fastening screw 9 passes
through the lug a² on the fixed half a of the ring and takes into a hollow screw i
in the lug b2 of the moveable half 6 of the ring. This hollow screw i is so adjusted
in the lug 62 that its inner end projects slightly from it. By this means the closed
ring ab can be adjusted to fit the tubular collar fixed on the shaft k with the
greatest nicety.
The tubular collar fixed on the shaft is made in two parts 7, m shown separately
in Figure 26, the smaller part m being connected to the larger part 1 by a sliding
motion instead of by a joint as before described.
After the larger part 7 has been placed upon the shaft k the lips m² m² of the
smaller part m are engaged by a sliding motion with the grooves 12, 12 in the larger
part so that the collar completely encircles the shaft k as represented in Figures
22 and 23, the collar being fixed to the shaft by the binding screws n, n carried by
the smaller part m. The collar l, m fixed on the shaft k has at its middle an annular
rib p V shaped in cross section and the inner side of the ring ab secured to the
lamp, has a corresponding V shaped groove o made in it to fit upon the V shaped
rib p as seen in the combined collar and ring represented in longitudinal section in
Figure 27; a front elevation of the connected parts is also shown in Figure 28.
In order to connect the lamp to the shaft k according to this arrangement of my
invention, the lamp carrying the jointed ring a, b is opened and the rear half d of
the clip or barrel on the body e of the lamp is passed onto the fixed collar l, m on
the shaft k, the fixed half a of the ring seating itself upon the rib p on the said
collar as represented in Figure 22. The jointed front es of the lamp is now closed
on the body of the lamp in taking which position its half clip or barrel e³ closes
the half b of the ring upon the fixed half a, the lugs a², 62 of the closed ring
approaching one another to the extent permitted by the projecting part of the hollow
screw i as represented in Figure 23. The fastening screw g is now driven home into
the hollow screw i by turning it by its external handle and after the halves of the
ring have been fastened together the screw g is locked by means of the lock nut g².

page_text: "
As the shaft k rotates the V shaped rib p on the fixed collar l, m rotates in the
V shaped groove q in the ring a, b secured to the lamp-friction between the rubbing
parts being reduced by oil supplied to them from the lubricator on the lamp.
In order to detach the lamp from the shaft k it is only necessary to withdraw
the fastening screw g from the hollow screw i when the half ring b may be opened
from the fixed half ring a and the lamp lifted from the shaft.
Or in place of connecting the door or front of the lamp to the front half of the
clip or barrel d, e³, the door or front of the lamp may be hinged to the body of the
lamp and the fixed half ring a be attached to the top of the lamp, thus dispensing
with the clip or barrel d, e³.
Having now described the nature of my invention and the manner in which the
same is to be performed I wish it to be understood that I claim as my invention of
Improvements in connecting lamps to the shafts of bicycles, tricycles and other
velocipedes and to other shafts "
First The combination of the flanged jointed tubular collar b, d. fixed on the
shaft of the velocipede or other rotating shaft and the light tubular frame f placed
upon the said tubular collar, the lamp being connected to the shaft by the jointed
clip or barrel at the head of the lamp being closed upon the said light tubular
frame, within which light tubular frame the fixed collar turns on the rotation of
the shaft as hereinbefore described and illustrated in Figures 1. 2. 3. 4. 5. 6 and 7
of the accompanying Drawings.
Secondly The modification of the said tubular collar fixed on the shaft and the
frame enclosed by the clip or barrel of the lamp hereinbefore described and
illustrated in Figures 8 to 16 both inclusive of the accompanying Drawings.
Thirdly Attaching to the rear part of the clip or barrel of the lamp, or to the
top of the lamp, ring like springs dd which are made to engage with grooves in
the flanges of the tubular collar fixed on the shaft substantially as hereinbefore
described and illustrated in Figures 17. 18. 19 and 20 of the accompanying
Drawings.
Fourthly Attaching to the rear part of the clip or barrel of the lamp or to the
top of the lamp, a jointed ring made in balves and grooved internally, which ring
on attaching the lamp to the shaft is made to engage with an annular rib on the
collar fixed on the shaft, substantially as herein before described and illustrated in
Figures 21 to 28 both inclusive of the accompanying Drawings.
Lastly-The arrangement of parts hereinbefore described and illustrated in
Figures 22. 23, 24 and 28 of the accompanying Drawings for fastening the two
halves of the jointed ring together, when closed upon the rib on the collar fixed to
the shaft or upon the rib on the shaft itself, and for adjusting the distance to which
the halves of the ring may close upon the rib on the collar or the rib upon
the shaft.
In witness whereof I the said Joseph Lucas have hereunto set my hand
and seal this Twelfth day of March in the year of our Lord one thousand