IMPROVEMENTS IN VELOCIPEDES
Year: 1885

page_text: I JAMES RICHARD TRIGWELL 2, Avenue Place, Brixton Rise in the County of
Surrey Engineer do hereby declare the nature of my invention for IMPROVEMENTS
IN VELOCIPEDES to be as follows:-
My invention relates to improvements in the steering porton of Velosipeds and
is chiefly aplicible to the bicycle and Humber pattern tricycle the heads mostly
used are the Stanley pattern which are slotted out at the back to receive the
neck which is attatch to the back bone of the machiene the necks now in use are
bored through to receive the bearing pivots which are made of cast steel and lipt
hard theas pivots bearing on the balls at times break and let the rider down.
Now in my improved sistom I do away with the above mentioned hard steel
pivots I simply cone the neck at each end, leveing it quite soft I also use two rows
of balls in the bottom ball bearing center as the single one now used in larg
machienes with heavy riders weare verry quickly to obviate this I use two rows
of balls one row being in opposite place to the other makein of the weare one half
to that of one row the ball bearing centers are made of one or two rows of balls
the top of one the bottom mostly of two accordin to size of machien, the inner
portion of the center bearing is coned out in the center to receive the male cones
on the neck the outer serface is grooved to take a bearing on the balls which run
freely round in there respective grooves I use a screw at the small and lower end,
the head shouldering on the outer serface of the ball bearing center the above
screw working freely round with the center portion of the bearing which prevents
it from comming up and holding the balls in there respective groove makeing it
perfectly self contained.

page_text: Improvements in Velocipedes.
I, JAMES RICHARD TRIGWELL, of 2 Avenue Place Brixton Rise, in the County
of Surrey Engineer do hereby declare the nature of my Invention for "IMPROVE-
MENTS IN VELOCIPEDES," 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 improvements in the steering apparatus of velocipedes
and is chiefly applicable to bicycles and the Humber pattern of tricycles in which
the heads are mostly slotted out at the back to receive the neck which is attached
to the back bone of the machine.
The necks now in use are bored through to receive the bearing pivots and these
pivots are liable to breakage.
According to my Invention I form a vertical spindle along the front of the neck
this spindle being conical at each end and fitting into conical bearings which
revolve on one or more rows of balls placed in suitable cavity at the upper and
lower portions of the head.
My Invention will be readily understood on reference to the accompanying sheet
of drawings,
Figure 1. of which represents in section a head constructed on the Stanley
pattern, Figure 2 being a plan view thereof.
A is the head, slotted at the back to receive the neck B the front of which is
formed into a spindle C conical at each end. The conical ends revolve in bearings D
which are coned to the same angle as the spindle.
The bearings D are attached loosely by means of screws E to nuts F inserted at
the top and bottom of the head and a space or groove is left between the bearings
and nuts to receive one or more rows of balls G.
The bearings D revolve freely on the screws E and form a strong and durable
support for the spindle and neck without offering any resistance through friction to
the motion thereof, When it is desired to disconnect the neck from the head the
outer portion of the bearing or plug F is screwed out bringing with it the inner
portion of the bearing D the two being connected by the screw E so that there is
no possibility of the balls being lost. The bottom bearing consisting also of the
plug F and inner portion D may also be removed when necessary by means of a
wrench without separating the two parts.
A principal feature of my Invention is the construction of the spindle C of soft
metal the ends thereof being very slightly coned so that when placed within the
bearings D and properly adjusted they become firmly bedded therein the whole of
the friction being divided between the two parts of the bearings D and F and the
balls G. The spindle C thus possesses all the firmness of a hardened spindle
without brittleness or liability to breakage.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1st In velocipedes of the kind herein described the employment of bearings
consisting of a plag F screwed into the head and an inner portion D connected to

page_text: the said plug F by means of a screw E corresponding grooves being provided in
the two parts for the reception of the balls G, substantially as specified.
2nd The use in combination with the bearings above described of a soft conical
spindle C fitting into conical recesses in the inner portions of the bearings D,
substantially as specified.
3rd The improvements in the method of connecting the head and neck of a
bicycle or tricycle substantially as herein specified and illustrated by the accom-
panying drawings.