IMPROVEMENTS IN DOUBLE FOLDING PERAMBULATORS to be as follows:-
Year: 1884

page_text: I JAMES ROBSON of 20 London Street Fitzroy Square in the county of
Middlesex Builder do hereby declare the nature of my said invention for
"IMPROVEMENTS IN DOUBLE FOLDING PERAMBULATORS to be as follows:-
"
The object of this invention is to so construct and arrange the seats arms,
springs, and wheels of a double perambulator that they can all be folded in a
small compass on the release of side bars which slide upwards within the back
proper.
For the purpose of my invention I hinge the two seats to the back and also
the arms so that they can be folded downwards. The springs are hinge jointed
to the bottom frame at their outer ends and at their inner ends to bars which slide
up within the back.
The wheels on each side are not in the same line consequently those with the
narrow base can "close in "between those of the wider base.
When the several parts are expanded or opened out they are locked rigidly by
a bolt.

page_text: "
I JAMES ROBSON of No. 20 London St. Fitzroy Sq. in the county of Middlesex,
Builder do hereby declare the nature of my said invention for "IMPROVEMENTS
IN DOUBLE FOLDING PERAMBULATORS and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement—
The object of my invention is to so construct or arrange the parts of a double
perambulator that the two seats, one at the back and one at the front by a jointing
of the main frame at or about the centre can be firmly set and made rigid when
the frame is expanded and to be contracted or folded into small compass, the
bandle bars being also jointed as to be turned up close to the body for stowage 1
such as when not required for use.
The particular construction or arrangement of my double perambulator will
be clearly understood by the annexed drawings in which Figure 1 shows the
perambulator in an opened out or expanded condition. Figure 2 shows the same
in a half folded state by which the movable parts are well seen. Figure 3
represents it in a folded condition.
A, A¹, are the back and front seats respectively formed in a piece with side
rails B, B¹ hinged to the back support C at D and capable of folding downwards
when the locking bolt E is released, this being at the side and held firmly by the
spring F as shown at Figure 1.
The two seats A, A¹, and their frames B, B¹, are in a piece with the foot
boards G, G¹, respectively and move with their undersides of the footboards
serving as supports to rest upon the ground when the perambulator is folded as
shown by Figure 3.
H, H, are small rollers to prevent abrasion of the carpet or flooring should the
perambulator be moved when folded.
The wheels I, I, of which there are four, are in pairs and of the same diameter
and these are carried by springs J, J¹, whose outer ends are linked to the two
footboards G, G³, and at the inner end to blocks K at the central part said blocks
being attached to a cross bar bolted to the bars L, L, which have a sliding motion
governed by the cross bolt D of the back support C, C, as at Figures 2 and 3 or
drawn out to the full extent as at Figure 1 at which position the locking bolt E
secures them as well as the seat frames
The wheels I, have an axle stretching across the perambulator, but the wheels I¹,
have only short arms, the discs of which are enclosed by socket straps attached
to the springs J' so that the other pair of wheels I can fold well inside between
them as indicated by Figure 3.
The seat frames B, B¹, have props M, M¹, hinged to them and these have the
arms N, N¹, hinged to their upper ends to enable one to fold upon the other the
arms N, N¹, having their fulcrum on a bolt P.
The handle bars Q are centred or pivotted at R and tongues S can be thrown
above the swivel T to lock it in the position shown at Figure 1 but can be released
for folding up as at Figures 2 and 3 when the swivel is removed. I prefer to
balance this swivel so that it acts automatically to lock or to unlock the handle
bars when the perambulator is being opened out or folded up.
There are several advantages to be derived from this particular construction or
arrangement of double perambulator.
1. The springs are of such a length as will offer sufficient flexibility to the
machine.

page_text: 2. The machine is more sightly in appearance than any double folding
perambulator.
3. It is less likely to overturn having four wheels of wide base.
4. It occupies a smaller space when folded than any perambulator.
5. It occupies only as much space on the footway as a single perambulator.
If the back frame or back support be dispensed with the perambulator can be
used for an invalid who can be laid along upon the two seats.
said
Having now particularly described and ascertained the nature of my
invention and in what manner the same is to be performed, I declare that what
I claim is
The improvements in double folding perambulator as described and as shown
in the annexed drawings.
Secondly. Arranging the two seats back to back and in such a manner that
they and their respective wheels may fold towards each other guided
by side bars which slide within the back portion as described and as
shown.