Improvements in the Manufacture of Safety Velocipedes.
Year: 1887

page_text: Date of Application, 7th Apr., 1887
Complete Left, 30th Nov., 1887
Complete Accepted, 10th Feb., 1888
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Safety Velocipedes.
I JEAN STROBEL of Landwehrstrasse No. 18, in the city of Munich, Kingdom of
Bavaria, German Empire, Manufacturer do hereby declare the nature of this invention
to be as follows, reference being had to the accompanying sheet of drawings, in
which Fig. 1 is a side elevation of a bicycle, constructed in accordance with my
invention. Figs. 2 and 3 are respectively section and plan views to an enlarged
scale, illustrating details of the first part of my invention, and Figs. 4 and 5 are
respectively front and side elevations, illustrating the second part of my invention :-
According to the first part of my invention the steering tube or rod is separated
from the front fork, but is connected therewith by means of a connecting rod. On
the back-bone a slides the tube b, in the upper end c of which the adjustable saddle
tube d is adapted to slide. The front end e of the saddle tube d carries an adjustable
tube fi which is provided with the steering bar g. In the tube h, which forms an
extension of the front fork, a vertically adjustable tube is adapted to slide, and is
provided at its upper end with a projecting arm k, which is connected with the
steering bar g, by means of a link n free to move at its ends land m.
By this arrangement, it will be seen, that any movement of the steering bar g is
communicated through the link n, projecting arm k, and tube i to the front wheel.
In order to provide for the action of the brake upon the wheel, whatever the
position of the several parts, I employ the following arrangements :
The steering handle is centred at o to the steering bar g, its inner end being
connected to one end of a sliding bar q, which is so arranged that its fulcrum is not
in connection with the tube i. This sliding bar q is formed at its front end into a
presser piece q', which acts upon a roller mounted at the upper end of the brake
spindle s as shewn. The brake spindle s is contained within the tube i and is caused
to move vertically therein as the sliding bar q is moved backwards and forwards.
The brake spindle s passes at its lower end into another tube t which carries the
brake plate, which is so connected with the said tube t by means of a ring u fastened
therein that any outward motion of the sliding bar q and consequent pressing down
of the tube t will apply the brake to the wheel.

page_text: The brake spindles may be adjusted vertically as required. By these arrange-
ments the brake may be applied in a safe and efficient manner, altogether irrespective
of the positions of the steering bar g, projecting arm k, steering handle p and
sliding bar q.
The sliding tubes i and o are fixed in the required positions in their respective
tubes and by means of screws, and the tube is fixed in the required position in
the tube e by means of the screwed spindle w, which passes through the three
nuts xxx, the lowest of which is attached to the tube e and by screwing the upper
one with the screw spindle w, the tube f can be raised or lowered.
The adjustment of the driving chain, which has not up to the present time been
possible, especially during long rides, forms the second part of my present invention
and is specially illustrated in Figs. 4 and 5. yy are two pieces, connected together
by a bolt and nut, for example the lower piece y forming a strong link or, adjustable
frame forked at its lower end for carrying the crank axle. On the outer side of the
bearing rests a piece, through which the end of a rod or tube is passed, and screwed
thereto by means of nuts as shewn. By means of the adjustment thus afforded the
driving chain may be tightened up or loosened as desired by screwing the nuts
backwards or forwards.
In the above described arrangement in which the steering bar and the front fork
are separated, the tube e may either be carried by the saddle tube d as shewn, or may
be extended downwards and be carried direct by the back-bone a, and in this latter
case it may or may not be connected with the saddle tube d.
D
1 1
1 1
2 A
1 1000
LORENTZ ALBERT GROTH,
Crosby Hall Chambers, E.C.,
Agent to the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Safety-velocipedes.
JEAN STROBEL, of No. 18 Landwehrstrasse, in the City of Munich, and Kingdom
of Bavaria, German Empire, Manufacturer 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, reference being had to
the Figs. 1, 2 & 3 of the sheet of drawings accompanying my Provisional Specifi-
cation (Figs. 4 & 5 thereof being hereby cancelled), and to Figs. 4 & 5 of
sheet 2 hereto annexed, and to the letters of reference marked thereon (which relate
to like parts in all of the Figures), that is to say :-
Fig. 1 is a side elevation of a bicycle constructed in accordance with my invention.
Figs. 2 and 3 are respectively section and plan views to an enlarged scale illustrating
details, and Figs. 4 and 5 are horizontal section and side elevation respectively
illustrating a modification thereof-Referring to Figs. 1, 2 and 3 it will be seen that
the steering tube or rod is separated from the front fork, but is connected therewith
by means of a connecting rod-On the back-bone a slides the tube b, in the upper
end c of which the adjustable saddle-tube d is adapted to slide. The front end e of
the saddle-tube carries an adjustable tube f which is provided with the steering
In the tube h which forms an extension of the front fork, a vertically
adjustable tube i is adapted to slide, and is provided at its upper end with a projecting
arm which is connected with the steering bar g by means of a link n free to move
at its ends and m. By this arrangement it will be seen that any movement of the
steering bar g is communicated through the link n, projecting arm k and tube i to
the front wheel.
bar g.
is
In order to provide for the action of the brake upon the wheel whatever the position
of the several parts, employ the following arrangements-The brake handle
centred at o to the steering bar g, its inner end being connected to one end of a
sliding bar
which is so arranged that its fulcrum is not in connection with
the tube . This sliding bar is formed at its front end into a presser-piece q¹
which acts upon a roller mounted at the upper end of the brake spindle s as
shewn. The brake spindle 8 is contained within the tube i, and is caused to
move vertically therein as the sliding bar is moved backwards and forwards.
The brake spindle s passes at its lower end into another tube t which carries the
brake plate, which is so connected with the said tube t by means of a ring u fastened
therein that any outward motion of the sliding bar q, and consequent pressing down
of the tube t will apply the brake to the wheel. The brake spindle s may be adjusted
vertically as required. By these arrangements the brake may be applied, in a safe
and efficient manner, altogether irrespective of the positions of the steering-bar g,
projecting arm k, steering handle p, and sliding bar g. The sliding tubes i and c are
fixed in the required positions in their respective tubes n and b by means of screws,
and the tube is fixed in the required position in the tube e by means of the screwed
spindle w which passes through the three nuts xxx, the lowest of which is attached

page_text: to the tube e, and by screwing the upper one with the screw spindle w, the tube ƒ
can be raised or lowered.
In the above described arrangement in which the steering-bar and the front fork
are separated, the tube e may either be carried by the saddle-tube d, as in Figs. 1, 2,
and 3, or may be extended downwards and be carried direct by the back-bone a, as in
Figs. 4 and 5, and in this latter case it may or may not be connected with the saddle
tube d.
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 :-
First. In safety velocipedes the steering-bar and tube with brake lever, mounted
independently of the front wheel fork, and connected thereto by a connecting link,
substantially as hereinbefore described, and illustrated in the Drawings hereto
annexed.
Second. In safety velocipedes the means and devices for actuating the brake by
the brake lever on the steering bar, consisting of the sliding bar g, with its presser-
piece q adapted to operate the brake spindle without passing through the tube of the
front fork, substantially as hereinbefore described, and illustrated in the Drawings
hereto annexed.
יד
ليمن
1
T
1007