Improvements in or relating to Wheels for Cycles or similar Vehicles.
Year: 1895

page_text: Date of Application, 20th July, 1895
Complete Specification Left, 20th Apr., 1896-Accepted, 27th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Wheels for Cycles or similar
Vehicles.
I, JAMES RICHARD TRIGWELL, of 146 Brixton Hill, in the County of Surrey,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to wheels chiefly applicable for use on cycles in which the
rim is made heavy and the rest of the wheel may be as light as practicable. This
may be done by placing at the sides of the rim heavy rings connected by arms.
preferably tubular with the centre of the wheel. In this construction of wheel
hitherto these tubular arms have been rigidly connected with the hub of the wheel
which was formed with stumps or projections upon which the tubes were brazed.
In carrying out my present improvements I make all these parts detachable from
the wheel and to do this I form in two parts a clamp each of which carries the
projections for all of the arms; I fasten the two parts of the clamp together upon
the hub by means of screw bolts or the like preferably placing them near the hub
so that they may engage with peripheral grooves or recesses formed for the purpose
so as to prevent any possibility of the clamp turning upon the hub.
Each of the tubular arms terminates near the rim of the wheel in a T-shaped
piece recessed on each side to receive the rings of metal before mentioned which
may be secured to the arms by screws or the like.
By this means I can remove the metal rings from one wheel to another without
disturbing the arrangement of the other parts and the tubular arms and clamp can
then be removed without disturbing the rest of the wheel so that the whole apparatus
can be applied to or removed from complete wheels which has not hitherto been
practicable.
The rings may if desired be made in segments joined together in any convenient
manner and connected to the arms by clamps or the like instead of as previously
described.
Dated this 20th day of July 1895
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Wheels for Cycles or similar
Vehicles.
I, JAMES RICHARD TRIGWELL, of 146 Brixton Hill, in the County of Surrey,
Engineer, 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 :-
This invention relates to wheels chiefly applicable for use on cycles in which the
rim is made heavy and the rest of the wheel may be as light as practicable. This
may be done by placing at the sides of the rim, heavy rings connected by tubular
arms with the centre of the wheel. In this construction of wheel hitherto these
tubular arms have been rigidly connected with the hub of the wheel which was

page_text: formed with stumps or projections upon which the tubes were brazed. In carrying
out my present improvements, as shown in the accompanying drawings, wherein
Fig. is side view of a wheel with the central part in section and
Fig. 2 a transverse section on the line 2-2 of Fig. 1, I make all these parts
detachable from the wheel and to do this I form a clamp A A¹ in two parts each
of which carries projections A 2 for some of the arms B. The two clamp-
parts A A need not be similar and may be connected to different members of the
arms B but I prefer, as shown in the drawings to form the clamp in two equal
parts and connect to each of these parts the same number of arms. I fasten the
two clamp parts A A' together upon the hub C by means of screw bolts or the
like D preferably placing them near the hub C so that they may engage with
peripheral grooves or recesses formed for the purpose so as to prevent any possibility
of the clamp turning upon the-hub:
-Each of the tubular arms B terminates near the rim E of the wheel E in a solid
T-shaped piece B¹ recessed on each side to receive the metal rings F before
mentioned which may be secured to the arms B by screws or the like G passing
transversely through the rings F and engaging with the central part B2 of the
T-heads Bi
By releasing the screws G I can remove the metal rings F from one wheel to
another without disturbing the arrangement of the other parts and after releasing
the screws D the tubular arms B and clamp A A¹ can be removed without
disturbing the rest of the wheel so that the whole apparatus can be applied to or
removed from complete wheels which has not hitherto been practicable.
As shown in Fig. 2 the rings F are supported free of the rim E' whereby these
two parts are capable of moving in relation to each other.
The rings F may if desired be made in segments joined together in any convenient
manner and connected to the arms B by clamps or the like instead of as previously
described.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is ;-
1. The combination with a cycle road-wheel of one or more detachable rings
such as F.
2. The combination with a cycle road-wheel of a solid ring and hollow arms
substantially as described.
3. The combination with a cycle road-wheel of a solid ring supported free of the
wheel rim whereby relative displacement may take place.
4. The combination with a cycle road-wheel of one or more rings such as F and
means for readily attaching or detaching them to or from the wheel.
5. The combination with a cycle road-wheel of one or more rings such as F of
nearly the diameter of the rim a clamp such as A. A¹ D to embrace the hub of the
wheel and arms such as B for connecting the rings to the clamp substantially as
described and illustrated in the accompanying drawings.
6. The combination and arrangement of parts constituting the complete cycle
road-wheel attachment substantially as described and illustrated in the accompanying
drawings.
Dated this 20th day of April 1896.
Dated this 20th day of April 1896.
J. K. TRIG WELL.
Boult & Wade,
Agents for the Applicant.