Year: 1887

page_text: Date of Application, 25th Feb., 1887
Complete Left, 22nd Nov., 1887
Complete Accepted, 23rd Dec., 1887
We MARWOOD JOHN OLIVER, of Tremeer House, St. Tudy, Bodmin, Cornwall and
THOMAS TRELMAVEN of Gargus Tregony, Grampound Road, Cornwall do hereby
declare the nature of this invention to be as follows:-
This invention relates to providing two wheeled carriages with a safety adjustable
seat so constructed that the driven can instantaneously and with great facility and
without rising from his seat adjust the position of the seat forwards or backwards as
required to allow for the variations in the level of the roads and the seat is prevented
from becoming tilted, from the horse starting suddenly or the unevenness of the road.
For this purpose we provide the sides or ledge of the vehicle with toothed racks in
which work two pinions which have their bearings on the under side of the seat and
are connected with a pair of bevil wheels or their equivalent operated by a handle
conveniently placed within reach of the driver and whereby the seat can be moved
backwards or forwards as required. Suitable means are provided for preventing the
handle from being accidentally turned, such as a notched plate in which the handle
can engage. The end of the seat provided with a flanged plate which moves in
grooves parallel with the toothed racks whereby risk of the seat becoming tilted or
overturned is entirely obviated.
Dated the 25th day of L
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: A Safety
We, MARWOOD JOHN OLIVER, of Tremeer House, St. Tudy, Bodmin, Cornwall,
and THOMAS TRELEAVEN, of Gargus Tregony, Grampound Road, Cornwall, 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 an improved seat for two-wheeled carriages, the said seat
being so constructed that the driver can instantaneously and with great facility, and
without rising from the seat, adjust the position of the same forwards or backwards, as
required, to allow for the variations in the level of the roads; and that the seat is
prevented from becoming tilted owing to the horse starting suddenly or to the uneven-
ness of the road.
For this purpose we provide the sides or ledges of the body of the vehicle with
1oothed racks in which work two pinions having their bearings on the under side of
the seat and connected with a pair of bevil wheels or a worm and worm wheel or
their equivalent operated by a handle conveniently placed within reach of the driver ;
whereby the seat can be moved backwards or forwards as required. Suitable means
are also provided for preventing the handle from being accidentally turned, such as a
notched plate in which the handle can engage. Each end of the seat is provided with
a flanged plate which moves in grooves parallel with the toothed racks whereby risk
of the seat becoming tilted or overturned is entirely obviated.
In order to enable our invention to be fully understood we will proceed to describe
how it can be carried into practice by reference to the accompanying drawing in
which
Figure 1 is a side elevation, and
Figure 2 a back view of a two-wheeled carriage provided with a safety adjustable
seat according to our invention.
Figures 3 to 7 are detached views of some of the parts; figures 3, 4, 5, and 7 being
drawn to an enlarged scale.
Similar letters in all the figures indicate similar parts.
a, a are the toothed racks with which we provide the sides or ledges b, b of the body
of the vehicle.
One of the ledges b with its toothed rack and the grooves hereinafter more particu
larly referred to placed parallel therewith is shown in end elevation in figure 3, while
figures 4 and 5 show respectively a longitudinal elevation and a plan of part of the
same.
c, c are the pinions working in the racks a, a and fixed to a spindle or shaft d having
its bearings on the under side of the seat e.
and g are the pair of bevel wheels connected with the pinions c, c, the wheel
being fixed on the spindle d whilst the wheel g is fixed upon a spindle h and gear
with the other wheel f
7

page_text: The spindle has its bearing in a bracket i on the seat e.
jis the handle for operating the bevil wheels and thereby moving the seat e back-
wards or forwards as required, the said handle being for convenience placed within
reach of the driver as shown.
k-is the notched plate, in the notches a' of which a projection on the handle j,
is caused by a spring m to engage, for the purpose of preventing the handle
from being accidentally turned: figure 6 shows a detached plan view of the notched
plate k.
n, n are the flanged plates provided on the ends of the seat e; one of these plates
is clearly shown in figure 7, which is a rear view of one end of the seat with its plate n
and pinion c.
o, o are the grooves placed parallel with the toothed racks a, a in which grooves the
flanged plates n, n slide. These grooves are formned by flanged plates fixed to the
sides or ledges b, b of the vehicle as clearly illustrated in figures 3, 4, and 5, and by
their means, risk of the seat e becoming tilted or overturned from the horse starting
suddenly or the unevenness of the road is entirely obviated.
In order to adjust the position of the seat, it is only necessary for the driver, without
rising from his seat, to raise tho handle from the notch a' of the plate k in which it
is engaged and to turn it in the required direction according as he may wish to move
the seat backward or forward; by this action the bevil wheels g and fand pinions c, c
will be rotated and will move the seat e along over the toothed racks a, a the
flanged plates n, n of the seat sliding in the grooves o, o, on the sides or ledges b, b of
the vehicle.
It is advantageous to provide the flanged plates, or the seat rest or ledges with
friction rollers so as to reduce the friction to a minimum.
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 adaptation to two-wheeled carriages of a seat so constructed that the driver
can instantaneously and without rising from his seat adjust the position of the same
forwards or backwards, the said seat being prevented from becoming tilted or overturned
substantially as hereinbefore described.
2. A seat for two-wheeled carriages provided with pinions adapted to work in
oothed racks on the sides or ledges of the vehicle and arranged to be operated by
uitable means such as those herein referred to, substantially as and for the purposes
ereinbefore described.
3. The improved safety adjustable seat hereinbefore described with reference to the
ccompanying drawing.
Dated the 22nd