Improvements in Seat Supports and Handle-bars for Bicycles and the like.
Year: 1897

page_text: Date of Application, 22nd Oct., 1897 --Accepted, 1st Jan., 1898
COMPLETE SPECIFICATION.
Improvements in Seat Supports and Handle-bars for Bicycles
and the like.
I, BRUCE WALKER RAVENEL, Draughtsman, of number 1510 Gervais Street,
Columbia, in the County of Richland, and State of South Carolina, one of the
United States of America, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
This invention has reference to a novel construction in a support for upright
posts forming a part of bicycles and the like, for instance, the seat-post or the
handle-bar portion, and its object is to provide a ready means for adjusting said
posts vertically to accommodate the bicycle for use by different persons, or by the
same person under different conditions.
The invention consists in the features of construction hereinafter described and
specifically claimed.
In the drawings forming part of this specification,
Figure 1 is a view showing the upper part of the bicycle frame with my improve-
ment connected therewith.
Figure 2 is a horizontal section on the line a-x of figure 1.
Figure 3 is an elevation of the seat post detached.
For convenience of illustration, a seat support and post has been selected and is
illustrated in the drawing, although it is understood that the invention is applic-
able equally as well for the post or the handle-bar. Referring to the specific
form illustrated, 1 is a part of the bicycle frame to which my improved socket or
attachment is applied. 2 is the socket connected with the frame by means of a
bolt 3. The socket 2 is provided with recesses in which are seated spring bolts 4, 4,
each operated by a thumb or finger lever 5,5, the bolts being held in working
position by means of spiral springs 6, 6. The seat post 7 which fits within the
socket is provided on opposite sides with longitudinal grooves 8 to receive the
ends of the spring bolts 4. In the bottom of the grooves are the openings to
receive the ends of the spring bolts, and into any one of which the said bolts can
pass. The longitudinal grooves serve to protect the seat-post from rotating, so
that the spring bolts can always easily find a pair of openings. In order to adjust
the seat to any desired height, the operator with thumb and finger vibrates the
levers 5,5, withdraws the bolts 4, 4, and at the same time raises or lowers the
seat-post to the desired position and permits the bolts to seat in the proper recess
or perforation in the seat-post.
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:.
1. The combination of a bicycle frame, a socket or support for a post provided
with spring bolts, and means for operating said bolts, and a post provided with
nations substantially on decombed

page_text: 2. The combination of a post socket, a pair of spring bolts, and a finger or
thumb lever for each member of the pair of bolts, substantially as described.
3. The combination of a post provided with recesses or perforations, a socket
provided with spring bolts for interlocking with the seat post, and means for
withdrawing said bolt to release the seat-post, substantially as described.
Dated this 21st day of October 1897.
F. BOSSHARDT & Co.,
4 Corporation Street, Manchester, Agents to Applicant.