Improvements in and relating to Supports for Bicycles.
Year: 1899

page_text: Date of Application, 9th Mar., 1897
Complete Specification Left, 7th Dec., 1897-Accepted, 5th Mar., 1898
Improvements in and relating to Supports for Bicycles.
We, HAROLD DAVIDSON, Surgeon, and GEORGE EDWIN DIXON, Doctor of Medicine,
of the White House, High Street, Teddington, and 31B, Snow Hill, London, E.C.,
respectively, do hereby declare the nature of this invention to be as follows:
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Our invention has for its object to provide convenient and effective means for
maintaining a bicycle when at rest in an approximately vertical position, the said
means also serving as a "lock" to prevent the bicycle from being ridden or wheeled
away against the wish of the owner.
According to our invention we provide a pair of swinging rods or
legs which are pivoted to a clump or similar device that is capable
of being securely attached to the diagonal stay or other suitable portion of
the frame of the bicycle. The said clamp is preferably formed with sloping or
cam surfaces where the rods or legs are pivoted thereto so that the pivoted rods or
legs when in a horizontal or raised position and out of use will lie parallel and in
proximity to each other but when turned down into an approximately vertical posi-
tion with their free ends resting on the ground such ends will be directed outwardly
or away from each other and thereby give a firm support to the bicycle.
The said swinging rods or legs may be made tubular and be composed of steel,
aluminium or other suitable material. They may also be made with sliding or
telescopic portions that are adjustable for the purpose of varying their length.
The aforesaid clamp is preferably provided with an automatic locking device so
arranged that when the said pivoted rods or legs are turned down into their vertical
position they will be rigidly locked in such position and cannot be released again
except by the use of an appropriate key possessed by the owner.
For this purpose
we may employ spring actuated bolts engaging in suitable slots when the said
rods or legs are turned down into their vertical position, the said bolts being so
formed that they can only be released from the said slots by means of the aforesaid
key.
The arrangement of the aforesaid rods or legs is such that when in their support-
ing position they will lie in the path of the cranks, and therefore prevent the latter
from revolving until the rods have been unlocked which can only be effected by the
aforesaid key. By this means the bicycle is protected from being ridden or wheeled
away against the wish of the owner.
Instead of employing a pair of swinging rods as above set forth we may use a
single rod or leg of similar construction, the locking device being modified
accordingly.
In order to retain the legs in their horizontal or raised position we may employ
any appropriate means such as a strap or clip to connect them to the horizontal or
other suitable member of the bicycle frame.
Dated this 9th day of March 1897

page_text: extremities of the pivot pins d². The inclination of the said pins is such that the
legs are caused, when turned down, to diverge to the extent required to properly
support the bicycle.
e is a sleeve adapted to fit over the block d. The ends of this sleeve are inclined
relatively to each other as in Figures 7 and 8 to correspond to the inclination of the
legs in their turned down position.
ff are spring bolts which are adapted to automatically enter holes a" in the
bosses as when the legs a are in this latter position, thus securing the said legs in
their locking position which as stated is that in which they "lock" the machine by
obstructing the pedals.
Thus as long as the bolts f are in engagement it will be impossible for anyone to
raise the legs a in order to set the pedals free so as to be able to ride off with the
bicycle.
The bolts are arranged in cavities in the block d and have situated between
them a pinion f¹ adapted to engage with a series of annular ridges or projections f
serving as rack teeth on the bolts, this pinion being held in place by a hollowed out
block or filling piece f.
A coiled wire spring f³ acts on the axle f of the spindle, and tends, through the
medium of the pinion, to force the spring bolts f into their outward position so that
they engage in the holes a5. This spring is situated in a cavity de which terminates
in slots extending to the end of the block.
The spring bolts can be drawn back by means of a suitable key inserted through
a keyhole e' in the sleeve e, this key being adapted to fit a square or block on the
end of the axle f* and enable the pinion f¹ to be turned in the opposite direction to
that in which the spring f³ turns it.
When the legs are thus unlocked they may be placed either in an approximately
horizontal position or in an inclined position, as indicated by dotted lines Figure 1.
The said legs may be maintained in this position by clips or catches or by any other
suitable means.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
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1. A bicycle support comprising a pair of legs so arranged that when in their
operative position they obstruct the motion of the pedals, substantially as and for
the purpose described.
2. A bicycle support of the kind referred to in the previous claim, having the
legs thereof secured to a clamping device by means of inclined pivot pins and pro
vided with means for automatically locking the said legs in their operative position,
substantially as described.
3. Our improved bicycle support constructed and operating substantially as
described with reference to the accompanying drawings.
Dated this 7th day of December 1897.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.