IMPROVEMENTS IN TRICYCLES AND OTHER VELOCIPEDES
Year: 1883

page_text: LETTERS PATENT to Walter John Lloyd of the firm of Lloyd Brothers of
Harborne in the County of Stafford Manufacturers for an Invention of
Tunno
737 ROTAAT TO
ARTER
TELATED"
PROVISIONAL SPECIFICATION left by the said Walter John Lloyd at the
Office of the Commissioners of Patents on the 3rd December 1883.
WALTER JOHN LLOYD of the firm of Lloyd Brothers of Harborne in the
County of Stafford Manufacturers "IMPROVEMENTS IN TRICYCLES AND OTHER
VELOCIPEDES
"
My invention has reference to the axles shafts or spindles of the travelling
wheels of tricycles and other velocipedes and my said invention consists in
constructing the said axles shafts or spindles in the manner hereinafter described.
By my invention great strength combined with lightness is obtained in the said
axles, shafts or spindles.
My invention is particularly applicable to the axles shafts or spindles of tricycles
and other velocipedes which are driven by means of a middle chain. wheel or
driving wheel but axles shafts or spindles constructed according to my invention
may be driven by a chain wheel or driving wheel at one or at both ends of the
axle or spindle.
I construct the axle shaft or spindle of a strong iron or steel tube and I connect
the middle chain wheel or driving wheel to the ends of the axle shaft or spindle
by means of wire ribs the series of wire ribs forming two cones the base of each
cone being the said chain wheel or driving wheel and its apex one of the ends of
the axle or spindle. The smaller ends of the double skeleton wire cone are
connected to the hollow axle or spindle by means of collars brazed or otherwise
fixed thereon. The wire ribs of the double skeleton cone break joint at their
connection with the middle chain wheel that is the junction of each wire rib of one
cone with the chain wheel is situated midway between the junctions of two wire
ribs of the other cone I make the middle chain wheel or driving wheel either of
a metal ring toothed on its outer edge or of a toothed disc fitting on the hollow
axis or spindle
When the tricycle or velocipede is driven by a chain wheel or wheels on its end
or ends a plain or untoothed ring or disc is substituted for the toothed ring or disc
described.
My invention is applicable to all kinds of tricycles and to velocipedes having
more than three wheels

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Walter John Lloyd in the Patent Office on the 31st May 1884.
WALTER JOHN LLOYD of the firm of Lloyd Brothers of Harborne in the
County of Stafford, Manufacturers "IMPROVEMENTS IN TRICYCLES AND OTHER
VELOCIPEDES"
My invention has reference to the axles, shafts or spindles of the travelling
wheels of tricycles and other velocipedes; and my said invention consists in
constructing the said axles, shafts or spindles in the manner herein after described.
By my invention great strength combined with lightness is obtained in the said
axles, shafts or spindles.
My invention is particularly applicable to the axles, shafts or spindles of
tricycles and othor velocipedes which are driven by means of a middle chain wheel
or driving wheel but axles, shafts or spindles constructed according to my
invention may be driven by a chain wheel or driving wheel at one or at both ends
of the axle or spindle.
I construct the axle, shaft or spindle of a strong iron or steel tube and I connect
the middle chain wheel or driving wheel to the ends of the axle, shaft or spindle
by means of wire ribs the series of wire ribs forming two cones, the base of each
cone being the said chain wheel or driving wheel and its apex one of the ends of
the axle or spindle. The smaller ends of the double skeleton wire cone are
connected to the hollow axle or spindle by means of collars brazed or otherwise
fixed thereon. The wire ribs of the double skeleton cone, break joint at their
connection with the middle chain wheel, that is, the junction of each wire rib of
one cone with the chain wheel is situated midway between the junctions of two
wire ribs of the other cone. I make the middle chain wheel or driving wheel
either of a metal ring toothed on its outer edge, or of a toothed disc fitting on the
hollow axle or spindle.
When the tricycle or velocipede is driven by a chain wheel or wheels on its end
or ends, a plain or untoothed ring or disc is substituted for the toothed ring or disc
described. My invention is applicable to all kinds of tricycles and to velocipedes
having more than three wheels. Figure 1 of the accompanying Drawing represents
in side elevation the driving axle, shaft or spindle of a tricycle or other velocipede
constructed according to my invention and Figure 2 represents a cross section of
the same taken near the middle chain or driving wheel. The same letters of
reference indicate the same parts in both Figures.
a is the strong iron or steel tube of the axle or spindle; b is the middle chain or
driving wheel consisting of a metal ring toothed on its outer edge; c d are the
two series of wire ribs on opposite sides of the middle chain wheel b by which the
said chain wheel is connected to the spindle or axle a near the ends thereof,
the wire ribs being secured at one end to the chain wheel b and at the other end
to the collars e, e fixed near the ends of the axle or spindle a. It will be understood
by an examination of Figure 1 that the base of each of the skeleton or ribbed
cones C, d is formed by the chain wheel b and the apex by the end of the axle or
spindle a. The wire ribs of the double skeleton cone c, d break joint at their
connection with the middle chain wheel b. This is best exhibited in Figure 2,
where it will be seen that the junction of each wire rib of the cone d with the
chain wheel b is situated between the junctions of two of the ribs of the other
cone c. The driving or travelling wheels of the tricycle or velocipede are fixed on
the ends a², as of the tube a of the double skeleton cone spindle in the ordinary
way and the said spindle may turn in ball bearings in the cases f, f supported by
the arms g, g which are fixed to the framing of the tricycle or velocipede.

page_text: A chain wheel consisting of a toothed disc has represented in Figure 3 may
be used in place of the toothed ring b Figures 1 and 2. The centre of the toothed
disch carries a bush or collar i which is fitted upon and is secured to the hollow
axle or spindle a.
In driving the tricycle or velocipede by means of a chain wheel on one end or by
a chain wheel on each end of the spindle a chain wheel or chain wheels is or are
fixed on the end or ends of the spindle beyond the fixing collars e, e of the double
skeleton cone c, d and a plain or untoothed ring or disc is substituted for the
toothed ring b or toothed disc h.
In place of the tube a represented in the drawing a solid rod may be employed.
By constructing the driving axles, shafts or spindles of velocipedes according to
my invention they possess great strength and rigidity or non-liability to bending
without undue increase of weight of the said axles, shafts or spindles.
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 ;-
The improvements hereinbefore described and illustrated in the accompanying
Drawing in constructing the driving axles, shafts or spindles of the travelling
wheels of tricycles and other velocipedes; that is to say, constructing the said axles
shafts or spindles of a strong iron or steel tube or solid rod and a middle ring or
disc either toothed or plain on its outer edge, the said middle ring or disc being
connected to near the ends of the tube or rod by means of wire ribs forming a
double skeleton wire cone the middle ring or disc when toothed serving as the
middle chain or driving wheel of the velocipede substantially as described and
illustrated.
In witness whereof I the said Walter John Lloyd have hereunto set my hand
and seal this Fourteenth day of May in the year of Our Lord one thousand
eight bundred and eighty four.
Witness,
GEORGE SHAW
WALTER JOHN LLOYD (L.S.)