Improvements in Locking Devices for Cycles.
Year: 1899

page_text: Date of Application, 31st Aug., 1899-Accepted, 18th Nov., 1899
COMPLETE SPECIFICATION.
Improvements in Locking Devices for Cycles.
We, ADOLF WESSNICK, of 9, Burgstrasse, Nuremberg, in the Kingdom of
Bavaria and Empire of Germany, Mechanic, and ADAM GUTOWSKI, of 12 Fnihaf-
strasse, Nuremburg, aforesaid, Manufacturer, do hereby declare the nature
of this invention and in what manner the same is to be performed, to bo
particularly described and ascertained in and by the following statement:-
This invention relates to improvements in appliances designed for locking
cycles and preventing their being used by strangers, the object of our invention
being to fold up and lock the handle bar which is made in two portions so that
it can not be used and at the same time locking the steering tube or head so
as to render the cycle entirely unridable.
Such being the nature and object of our said invention the following is a
complete description of same reference being had to the annexed drawings in
which:-
Fig. 1 is a sectional elevation of the hinged handle bar and locking device for
the steering tube or head.
Figs. 2 and 3 shew parts of the steering tube.
Fig. 4 is a cross section on line X. X, of Fig. 1.
or
According to this invention the steering tube A is formed on its
upper end with a hollow case 2 in which are pivoted the ends of
the handle bar 1 made in two parts each pivoted on studs
pins. The ends of the handle bar 1 terminate in two rollers 3 having
different diameters and both rollers are provided with teeth, the teeth on the
larger rollers 4 engage with each other and the teeth 4* on the smaller rollers
are a distance apart and are caused to engage with blocks 6 by the nut 23 being
turned on the bolt 5 thereby pulling the bolt 5 up and drawing the block 6
close up to the serrations or teeth 4 and holding the handle bar firm in any
position. When the nut 23 is unloosened the block 6 is pushed downwards
and away from the teeth 4* and the handle bar 1 can be folded up or moved as
desired.
The bolt 5 bears on its lower end a bar 9 furnished with a guide 10. In the
steering tube A are inserted bolts or pins 11 having flanged discs 12 mounted
thereon. Each of these flanged dises 12 has on its edge an opening 13 for the
passage of one of the pins 14 in the bar 9. To facilitate the operation of
adjusting the discs, the bolts 11 are furnished with heads 15 bearing pointers 16
corresponding with the openings 13 (see Fig. 3). Round the heads 15 some
characters Z N P F S GRA or numerals are arranged so that when the
pointers or fingers 16 point to any predetermined letters or combination of letters
or figures the locking device is in a position to be opened or fastened. Another
bolt 17 has a cam 22 which raises the bar 9 on the lower end of which is
mounted a bolt 18 which is pressed outwards by a spring 19 and when the bar 9
is moved down, the bolt 18 enters a groove 21 in the frame as shewn by the
dotted lines in Fig. 1.

page_text: The operation of the contrivance is as follows:-When the bicycle is to be
locked and secured from being used by strangers the heads 15 are turned until
their pointers 16 indicate the characters or letters at which the discs 12 must stand
so that their openings 13 are opposite the pins 14 of the bar 9. The nut 23 is
now loosened and this causes the blocks 6 to be pressed away from one another
by the spring 7 so that both parts of the handle bar 1 will fold down and the
bar 9 will move down in the tube A by the pressure of a spring round the
screw bolt 5. When the pins 14 of the bar 9 have passed through the open-
ings 13 the discs 12 (by means of the heads 15) are turned so that the pins 14
cannot be moved, and at the same time the bolt 18 enters the recess 21 and
locks the steering tube.
In order to unfasten the lock the heads 15 are turned so that their pointers 16
are set that the openings 13 are opposite the pins 14 and the bolt 17 can by
its cam 22 be moved to raise the bar 9 until the pins 14 pass the openings 13
and the nut 23 catches the bolt 5. The nut 23 is now turned and the block 6
is drawn upwards fixing the two portions of the bar 1 which has been raised to
its working position.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is: -
(1) The hinged or folding handle bar 1 mounted in the case
and having
on its inner ends rollers 3 the teeth 4* of which engage the block 6 the latter
being drawn upwards by a screw 5 as the nut 23 is tightened or loosened, all
in combination as and for the purpose herein described.
(2) The bar 9 extending from the bolt 5 and having on its lower end a bolt 18
pressed outwards by a spring 19 so as to enter the recess 21 when the bar 9 is
moved home, all in combination as and for the purpose herein described.
(3) The bolts 11 in the steering tube A bearing the discs 12 the edges of
which have openings 13 through which are passed the pins 14 on the bar 9
the said pins being then locked by turning the discs 12, all in combination as
and for the purpose herein described.
(4) The bolts 11 having heads 15 on which are pointers 16 to indicate the
positions of the discs 12 so that the latter can be turned to allow the bar 9 to be
moved and the cam 22 on the bolt 17 for effecting such movement, all in com-
bination as and for the purpose herein described.