Improved Means for Adjusting the Position of the Seats of Dog Carts and similar Two Wheeled Vehicles, Applicable also to the Saddles or Seats of Velocipedes
Year: 1888

page_text: Cate of Application, 9th Oct., 1888
Specification Accepted, 9th Nov., 1888
RESE
Improved Means for Adjusting the Position of the Seats of Dog Carts
and similar Two Wheeled Vehicles, Applicable also to the Saddles
or Seats of Velocipedes.
I PHILIP PEMBROKE ALEXANDER of 27 Bury Street St. James's S.W. Gentleman,
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 improved means for readily adjusting (in order to effect
the necessary balance) the position of the seats of dog carts and similar two wheeled
vehicles and is applicable also to the seats or saddles of velocipedes. It consists (as
applied to a dog cart for example) in attaching transversely to each extremity of the
seat or seats, or to the extremity of both, when made in one piece, an arrangement
of two parallel bars situate one beneath the other, and connected by swinging links
forming an acute angle with the horizontal line of the bars after the fashion of parallel
drawing rulers, the upper bars being attached to the underside of each extremity
of the seat or seats and the lower bars being secured one to each side of the vehicle.
In order to shift the position of the seat it is simply necessary to lift it forwards or
backwards as desired through a portion of an arc of a circle thus opening the bars
and closing them again with their links inclined in the opposite direction the amount
of movement of the seat or seats being regulated by the throw of the links.
In order to permit of the throw of the links being varied they may be provided
with slots preferably notched on one of their inner faces to ensure equal adjustment
of all the links their pivots passing through such slots and being maintained in the
required position by adjusting nuts. Provision may also be made for shifting the
lower or stationary bars backwards or forwards if desired.
In the accompanying drawings similar letters indicate corresponding parts in all
the figures.
Figure 1 of the drawings represents a transverse section of the body of a dog cart
illustrating the application of my invention to the seat thereof.
Figure 2 is a side view thereof with the side of the cart removed.
Figure 3 is a detached face view on a larger scale of the arrangement of parallel
bars connected by swinging links shewn as attached to the seat.
Figure 4 is a corresponding end view of the same.

page_text: A is the body of the dog cart, B the seat, CC the parallel bars connected by the
links D D swinging on the pivots E. FF are slots formed in the links D in order
that their throw may be altered if desired by shifting the position in such slots of the
pivots E the notches f forined in the slots ensuring equal adjustment of all the links,
and adjusting nuts G serving to maintain the pivots in place as shewn clearly in
Figure 3. The dotted lines in Figure 3 indicate the position of the seat when
swung forward.
In the drawings the front seat alone is shewn as connected with the parallel bars
but it is obvious that both the front and back seats may be connected therewith if
desired the bars in that case being of greater length or the back seat may be attached
to separate and independent sets of bars and links as found most convenient.
It is equally obvious that if desired I might dispense with the parallel bars C C
and attach the links D directly to the seat and body of the vehicle but I prefer the
arrangement shewn and described.
Figure 5 shows the application of my invention to a bicycle or tricycle saddle and
spring.
In this arrangement the links D are shewn as pivotted to lugs upon each side of
the two parallel plates C C₁ the saddle or seat B being suitably attached by an
ordinary saddle clamp H or otherwise to the top plate C and the spring I secured to
the lower plate C₁ by similar clamps K K.
The saddle or seat is shifted forwards or backwards as desired in the manner before
described with reference to the seats of dog carts.
It will be obvious that in this arrangement also the plates C C might be dispensed
with and the swinging links attached directly to the saddle and spring respectively but
I prefer the arrangement described and illustrated.
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 improved means for adjusting the position of the seats of dog carts and
similar two wheeled vehicles consisting in connecting each extremnity of the seat or
seats with the body of the vehicle by means of pivotted swinging links substantially
as described.
2. The improved means for adjusting the position of the seats of dog carts and similar
two wheeled vehicles consisting in attaching each extremity of the seat or seats to the
upper one of a pair of parallel bars connected by swinging links the lower bar of each
pair being secured to the vehicle substantially as described.
3. In a dog cart or similar two wheeled vehicle the combination with the seat or
seats B of the parallel bars CC₁ connected by swinging links D D arranged and
constructed substantially as specified and illustrated.
4. The application and use of my invention to and in connection with the saddles or
seats of velocipedes such application and use consisting in connecting the saddle
or seat with the spring by means of pivotted swinging links substantially as
described.
5. The combination with the seat or saddle B and spring H of the parallel plates CC¹
connected by swinging links D constructed and arranged substantially as described
and illustrated with reference to figure 5 of the drawings.
Dated the 9th day of October 1888.