IMPROVEMENTS IN THE CONSTRUCTION OF FRAMES FOR TRICYCLES
Year: 1884

page_text: We HENRY MOORE Junior of No 68 Preston Street, Brighton in the County of
Sussex, Bicycle & Tricycle factor & MARTIN DIEDERICK RUCKER of Letchford
Buildings, Bethnal Green in the County of Middlesex, Bicycle Maker, do hereby
declare the nature of our invention for IMPROVEMENTS IN THE CONSTRUCTION OF
FRAMES FOR TRICYCLES to be as follows:—
Our invention relates to the construction of T frames for Tricycles such as are
now largely used for central geared machines and consists in making the bowsprit
tube that runs out from the cross tube of the frame, to the steering wheel, whether
behind or before the driving wheels, detachable from the other part of the frame so
as to reduce the size of the machine for convenience of stowing or packing.
We joint the two parts of the frame together so as to be readily detached from
each other, as follows:-
In the end of the bowsprit tube that is to be connected to the cross tube we
braze a solid piece in the shape of a cone and provided with a screw thread at its
extremity; on the cross tube of the frame we provide a taper socket, into which
the coned end of the bowsprit tube fits and which on being drawn up tight, by a
nut on the screw thread on the end of the coned piece, and fixed by a lock nut,
secures the two parts of the frame together.
We make this coned end, and the socket, either round or square, but if the
former we provide some means such as a dowel pin to keep the two parts in their
relative positions.
When the bowsprit tube carries the crank axle, and lower chain wheel, we
provide some means of disconnecting one link of the chain so as to allow the two
parts of the frame to come asunder.
ROBT ED PHILLIPS,
Patent Agent,
46, Southampton Buildings,
Holborn, W.C.

page_text: We HENRY MOORE Junior of No 68 Preston Street Brighton in the County of
Sussex, Bicycle & Tricycle Factor; & MARTIN DIEDERICH RUCKER of Letchford's
Buildings Bethnal Green in the County of Middlesex Bicycle Maker do hereby
declare the nature of our said invention for "IMPROVEMENTS IN THE CONSTRUCTION
OF FRAMES FOR TRICYCLES," and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
Our invention relates to the construction of T frames for tricycles, such as are now
largely used for central geared machines, & consists in making the bowsprit tube
that runs out from the cross tube of the frame, to the steering wheel, whether
behind or before the driving wheels, detachable from the other part of the frame,
so as to reduce the size of the machine for convenience of stowing or packing.
We joint the two parts of the frame together so as to be readily detached from
each other as follows:-In the end of the bowsprit tube that is to be connected to
the cross tube we braze a solid piece in the shape of a cone & provided with a screw
thread at its extremity; on the cross tube of the frame we provide a taper socket,
into which the coned end of the bowsprit tube fits, & which on being drawn up
tight, by a nut on the screw thread on the end of the coned piece & fixed by a
lock nut, secures the two parts of the frame together.
We make the coned end & the socket either round or square, but if the former
we provide some means such as a dowel pin to keep the two parts in their relative
positions.
When the bowsprit tube carries the crank axle & lower chain wheel, we provide
some means of disconnecting one link of the chain so as to allow the two parts of
the frame to come asunder.
In order that we may be fully understood we will more particularly describe
our invention making reference to the accompanying drawing on which similar
parts are marked with corresponding letters of reference. Figs 1 & 2 are a side
and a front elevation of our invention in which the bowsprit tube A which carries
the steering wheel is separate from the tube B carrying the pedal axle, the end of
the tube A is made cone shape & is provided with a screw thread & two lock-
nuts a, a. This coned end fits into a taper socket c on the cross tube C of the
machine. A sinall key or dowel pin is fixed on the taper end of the tube A to
take into a keyway in the taper socket c to keep the bowsprit tube A. in its proper
position. Fig 3 shows an arrangement in which the bowsprit tube A & the tube B
carrying the pedal axle are fitted together as one piece & are then secured to the
cross tube C by the cone & socket as before described.
Fig 4 shows an arrangement in which the tube B which carries the pedal axle is
carried forward to carry the steering wheel, & dispenses with the direct bowsprit
tube A.
Instead of using a cone & socket for joining the two parts of the frame together
we sometimes use a split sleeve as shown by Figs 5, 6, 7 & 8 Figs 5 & 6 are a
side & front elevation showing the equivalent to Figs 1 & 2 & Figs 7 & 8 are a
side & front elevation showing the equivalent to Fig 4. In this arrangement
a split sleeve c is fixed to the cross tube C of the frame & the detachable part of
the frame A or B as the case may be (A as shown in Figs 5 & 6 & B as shown in
Figs 7 & 8) is clamped to the cross tube by tightening the sleeve by means of the
screw or screws c¹. A key or dowel pin being provided to keep the respective
parts in their relative positions. When the arrangement as shown by Figs 3, 4, 7
& 8 are used, means are provided for disconnecting one of the links of the chain so
as to allow the two parts of the frame to come asunder.

page_text: The steering rod may be disconnected either by letting the rack run out of gear
with the pinion, or by disconnecting the joint by which it is attached to the
steering arm on the fork of the steering wheel.
The arrangement as shown & described relates to the frames of front steering
tricycles, but it is obvious that this invention is also applicable to the frames of
rear steering machines.
The relative position of the driving axle is shown in some of the figures, the
axle being marked x.
Having now particularly described & ascertained the nature of our said
Invention & in what manner the same is to be performed We declare that what
we claim is;-
First-The construction of T frames for central geared tricycles as & for the
purpose hereinbefore described & shown.
Secondly The combination of a cone on the end of the bowsprit tube carrying
the steering wheel, & a taper socket on the cross tube of the frame as & for
the purpose described.