Improvements in or connected with Adjustable Telescopic Parts of Velocipedes and similar Vehicles.
Year: 1899

page_text: Improvements in or connected with Adjustable Telescopic Parts of
Velocipedes and similar Vehicles.
1, BADEN FLETCHER SMYTH BADEN-POWELL, of 8, St. George's Place, Hyde
Park Corner, in the County of London, Captain Scots Guards, do hereby declare
the nature of this invention to be as follows:-
This invention relates to those parts of velocipedes, motor cycles, and similar
vehicles, that are rendered adjustable as to their length by being formed in two
portions one of which slides telescopically within the other.
The object of my invention is to facilitate the adjustment of such parts and
to ensure the correct angular position of the said portions relatively to each
cther.
According to my invention, when applying the same, for example, to the saddle
post of a velocipede, I provide a collar capable of sliding upon said post and of
being secured in any position thereon by a set screw, clamping bolt, or other
means. This collar is adapted to rest upon the end of the diagonal or other
member of the velocipede frame on which the saddle post is mounted. I provide
means, such as a projection on the collar fitting a recess in the end of the
diagonal, for ensuring the proper angular position of the saddle when the post
is in position. Or I may make the lower surface or edge of the collar inclined.
the upper edge of the diagonal being correspondingly inclined, so that not only
will the proper angular position of the parts be ensured but this position will
be automatically assumed by the parts when they are brought together.
It will thus be seen that the saddle and saddle post may be quickly removed
from the velocipede and as readily replaced in the original position without the
necessity of any re-adjustment or alignment of the saddle with the velocipede.
Moreover alteration of the height of the saddle can be much more readily effected
than heretofore since it is only necessary to loosen the collar, slide it along the
post to the desired position, secure it there and then push down the post into the
diagonal until the collar bears upon the upper end of said diagonal.
In order to prevent the accidental lifting or displacement of the saddle post, I
may provide a spring clip or catch, or I may employ the ordinary form of clamp-
ing bolt at the end of the diagonal.
It is obvious that the above described device is equally applicable to the adjust-
ment of the handle bar stem in the steering post; to the adjustment of the two
parts of a telescopic brake rod; and to any other adjustable parts constructed in a
telescopic manner.

page_text: Improvements in or connected with Adjustable Telescopic Parts of
Velocipedes and similar Vehicles.
I, BADEN FLETCHER SMYTH BADEN-POWELL, of 8, St. George's Place, Hyde
Park Corner, in the County of London, late Captain, but now Major, Scots
Guards, 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:-
:-
This invention relates to those parts of velocipedes, motor cycles, and similar
vehicles, that are rendered adjustable as to their length by being formed in two
portions one of which slides telescopically within the other.
The object of my invention is to facilitate the adjustment of such parts and
to ensure their correct angular position relatively to each other.
According to my invention I provide a collar capable of adjustment upon the
smaller or inner member of the telescopic part and of being secured in any
required position thereon. The said collar is adapted to bear upon the end of
the larger or outer member of the telescopic part. I form a projection on or a
recess in the collar, and a corresponding recess in or projection on the end of the
larger member, for the purpose of ensuring the proper relative angular position
of the parts when the said projection is brought into engagement with the said
recess. I also preferably so form the said projection and recess that the parts
will automatically assume the aforesaid proper position when the collar on the
smaller member is brought into contact with the larger member.
In order that my said invention may be clearly understood and readily carried
into effect. I will proceed to describe the same more fully with reference to the
accompanying drawings, in which :-
:―
Figure is a side elevation illustrating my invention applied, by way of
example, to a telescopic part comprising the saddle support or post of a bicycle
and the diagonal member of the frame.
Figure 2 is a detail front elevation shewing more clearly the aforesaid projec-
tion and recess.
Figure 3 is a side elevation showing a modification of my invention.
Referring first more particularly to Figures 1 and 2, A is the post of the saddle
pin and constitutes the smaller or inner member of the telescopic part. B is the
diagonal or "down tube" of the bicycle frame and constitutes the larger or outer
member of the said part. « is the aforesaid collar which is adjustable upon
the post A and is capable of being fixed in any desired position thereon by the
clamping holt a* or by other appropriate means. In the example illustrated
by these figures I have shown a clamping device at the end of the diagonal
tube similar to that usually employed for securing the saddle support in position.
The use of such a device in combination with the collar a is desirable in order
to prevent accidental lifting or displacement of the saddle post, but it is not
absolutely necessary since the friction between the telescopic members, or the
weight of the saddle and its support, will usually be sufficient to prevent
unintentional movement of the saddle post relatively to the diagonal tube.
In some cases I employ a spring clip or catch for connecting the collar to the
diagonal to prevent such movement.
In order to ensure that the members A and B shall assume their proper
relative angular positions (that is to say, in the present example, to ensure that
the saddle shall be in alignment with the bicycle when the saddle post is lowered
to the extent determined by the position of the collar upon the post), I provide

page_text: the said collar with the projection a adapted to enter the recess 6' in the end
of the diagonal tube (see Figure 2). Obviously however the projection may be
formed upon the diagonal tube and the recess may be in the collar. For the
purpose of enabling the parts to automatically assume the proper relative position
aforesaid, when they are brought together, I make the said projection and
recess V-shaped as shewn in Figure 2. The inclined sides of the said projection
and recess operate to guide the parts into their proper position in the event of
the movable member being slightly angularly displaced.
It will thus be seen that the saddle and saddle post may be quickly removed
from the velocipede and as readily replaced in their original position without the
necessity of any re-adjustment of the saddle with respect to the velocipede.
Moreover alteration of the height of the saddle can be much more readily
effected than heretofore, since it is only necessary to loosen the collar, slide it
along the post to the desired position, secure it there and then push down the
post into the diagonal tube until the collar bears upon the upper end of said tube.
I sometimes form two or more projections on the collar and a corresponding
number of recesses in the end of the diagonal tube.
Instead of constructing the collar and the diagonal tube with a projection and
recess of V-shape as illustrated in Figures 1 and 2. I may form the collar with
an inclined under edge as illustrated in Figure 3 and form the upper end or
edge 2 of the diagonal tube parallel with the said inclined edge 2. In this
case the projection comprises the portion of the collar protruding beyond the
dotted line (Figure 3) and the recess comprises the portion of the diagonal
tube removed below the line y y (Figure 3). In this figure I have shewn the
saddle post A slightly withdrawn from the diagonal tube B so that the said
collar a is removed from contact with the diagonal tube for the purpose of more
clearly explaining the construction of the aforesaid projection and recess.
It is obvious that my invention is equally applicable to the adjustment of the
handle bar stem in the steering post; to the adjustment of the two parts of a
telescopic brake rod; or to any other adjustable parts constructed in a telescopic
manner.
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 in velocipedes, motor cycles, and similar vehicles, is:-
1. The combination with a telescopic part, of a collar adjustably mounted
upon one member of said part and having a projection or recess adapted to
engage with a corresponding recess or projection in or on the other member of
said part, for the purposes specified.
2. The adjustable telescopic part constructed arranged and combined to operate
substantially as described with reference to either of the examples illustrated
in the accompanying drawings for the purposes specified.
Dated this 94th day of Wobry 1900
HASELTINE. LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.