IMPROVEMENTS IN FOLDING CARRIAGES FOR CHILDREN
Year: 1884

page_text: COMPLETE SPECIFICATION.
23
We WILHELM SINGER of Berlin in the Empire of Germany, Merchant, and
FRANZ HAVER HINTERLEITNER, also of Berlin, Mechanician, do hereby declare the
nature of our invention for "IMPROVEMENTS IN FOLDING CARRIAGES FOR CHILDREN
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:
According to this invention four parts we will call legs, and which constitute
the main fraining of the carriage are so formed by bending round bars of iron, steel
or other suitable material that each such bar after passing like a spiral spring
around the common axis of oscillation forms a C spring and finally terminates at
its lower end in a short angular part that forms the axle of the wheel so that each
of the said bars forms not only a portion of the framing of the body of the vehicle,
but likewise a supporting spring and wheel axle, all these parts being combined in
one piece.
The four legs are of similar length, and form two pairs (one at each side of the
vehicle) each pair comprising one front and one back leg which are capable of
being turned scissors like on the common axis,.and by their peculiar formation as
above set forth this result is attained without boring through or rivetting together
of the said legs, thus obviating weakening of the material and producing an
advantageous spring arrangement.
Referring to the accompanying illustrative drawings, Fig. 1 is a side view open,
Fig. 2 an end view, and Fig. 3 a side view folded.
As shewn, the legs a a¹ formed of round iron or other suitable material and
which constitute the sides of the carriage frame to the axis b, are each bent round
the latter in the manner of a spiral spring, and beyond b each forms outward
a supporting spring c or c', and terminates in a wheel axle d or d', so that the
side a, the supporting spring c, and the axle d are all comprised in one and the
same piece of metal.
The arrangement of these round bars, around the common axis b in the manner
of spiral springs allows the legs a a¹ with their further parts c c¹, d d', and also
with the wheels e e', on d d to fold together scissors like without necessitating
boring through, rivetting, or screwing together of the bars constituting the said
legs, thus there is no weakening of the material
The two legs of each pair are maintained in their extended attitudes by a
jointed oscillating rod g which is fastened to a at h by any safe and easily

page_text: detachable fastening arrangement. The body i made of woven material (canvas, &c.)
is sewn round the legs and connecting rods g.
The two legs of each end are connected together by transverse tie rods kk'.
When the carriage is to be folded the fastenings at h are undone, the rods g are
allowed to fall down by their joints, and the two pairs of legs are folded together
scissors like as shewn in Fig. 3.
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,-
In a folding child's carriage
1. The legs a bent spiral spring like around a common axis 6 consisting of one
piece comprising the side of the frame a, the bearing spring o, and the wheel axle d
substantially as described.
2. The use of a pair of legs a a¹ having a scissors like movement the
arrangement being such as to dispense with holes bored through the legs and
with connecting rivets or screws, substantially as described.
Dated this 19th dew of February 1884