Improvements in or relating to Cart Doors.
Year: 1899

page_text: Improvements in or relating to Cart Doors.
EDWARD JAMES HITCHCOX, 9, Heathwood Gardens, Little Heath Charlton, Kent,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
The
My invention relates, to a new or improved door of a covered, low tipping
cart, to facilitate the discharge thereof. The door is worked on the principle
which in mechanics. is termed a parallel motion. The top set of lever's are
connected by a spindle across the cart & so arranged that they take the weight
of the door at once, the loose or lower lever's acting as guides. A seperate lever
is used (each side of the door) to make it secure and when unfastened fall,
touching the ground & working on the lower pin (of the door) as a centre
cart being tipped & the lever's coming in contact with the ground keep the
door up whilst the cart decends, the open door is made fast & kept in position
until discharged. When the door is let down the levers are put up perpendicu-
larly working from the lower pin as a centre, it clams a pin behind at the bottom
of the cart taking a leverage across the door, is made fast at the top by a small
coupling which is slipped over the lever & set up by screw's.
Manal +1 1900
Improvements in or relating to Cart Doors.
I, EDWARD JAMES HITCHCOX, of late of 9, but now of 97, Heathwood Gardens,
Little Heath, Charlton, in the County of Kent, Mechanical and Marine Engineer,
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 has reference to a new or improved means of supporting the door
of a cart so as to facilitate the opening of the door and the discharge of the
contents of the cart as I shall now describe with reference to the accompanying
illustrative drawings wherein Figs. 1 and 2 show respectively in side and end
elevation a covered low tipping cart provided with a door supported and operated
according to this invention. Fig. 3 is a part side elevation showing the cart
tipped and the door opened.
I is the body portion of a covered low tipping cart suitable for carrying house
D

page_text: and street refuse and provided with a discharge opening at its rear end through
which the refuse can be discharged upon tipping the cart. The opening is
controlled by a door 2 that is connected to the body of the cart by a parallel motion
device so that in opening and closing it will move up and down and be main-
tained parallel to the rear end of the cart. For this purpose the door 2 at its
upper part is jointed to and carried by an upper pair or set of lever arms 4 that
are fixed to a horizontal spindle 5 which is mounted in bearings 5ª on the body
of the cart across which it extends, and is provided with a hand lever 6 which
may be in one piece with one of the lever arms 4 as shown. The lower part of
the door is jointed to a lower pair of arms or links 7 that are pivoted to the cart
body at 8 so as to be parallel to the upper set of lever arins 4 and which serve
to keep the door at all times parallel to the rear end of the cart.
As will be seen the arrangement is such that normally the door 2 will hang in
the closed position shown in full lines in Figs. 1 and 2, against the rear end of
the cart so as to close the opening therein, and that by depressing the hand
lever 6 the door will be caused to move outward and upward into the position
shown in dotted lines in Fig. 1 so as to uncover the opening in the rear end of
the cart and allow of the removal of the contents thereof.
For the purpose of securing the door in the close position and for automa-
tically opening the door when the cart is tipped backward, there are pivoted to
opposite sides or edges of the door, two levers 9 each of which is formed with a
hook-like part 9 that is adapted when the door is raised and the lever turned
upward into the positions shown in Fig. 1, to pass over and engage with a pin 10
fixed to the body of the cart and secure the door in place, the two levers 9 being
of such length that when turned downward and backward and the door is tipped
they will come into contact with the ground and automatically move the door
into the open position shown in Fig. 3 and hold it in that position whilst the
cart is tipped and enable the contents of the cart to be readily discharged. Each
of the levers 9 can be fixed in its upper position with its hook portion 9ª in
engagement with the corresponding pin 10 by a coupling device which may con-
veniently consist of a metal loop 11 that is pivoted to the cart body at 12 so
that it can be slipped over the upper end of the raised lever 9 and is provided with
a set screw 13 by which the said lever can be fixed in place when engaged with
the pin 10.
As will be obvious the details of construction can be variously modified. Thus
the horizontal spindle 5 may work in a fixed sleeve 14 (Fig. 2) to protect it
and the bearing 5ª from the refuse in the cart. Also the door 2 may be stiffened
by a cross bar 15 that is fixed to it and to which the outer and lower ends of the
arms or links 7 and the levers 9 are jointed. When the cart is used for collect-
ing refuse material, it may advantageously be provided with a shoot 16 con-
structed and operating substantially in the manner and for the purpose set forth
in the specification of another application for Letters Patent filed by me No. 1184
of. 1899.
In some cases, as when it is not desired to automatically open the door upon the
cart being tipped, the levers 9 may be omitted, the door then normally resting
in the closed position by gravity and being locked, if desired, in that position,
by any suitable means. Also the door may open by a backward and downward
movement the door being then normally held in its raised and closed position
by a counterweight.
- Figs. 4 and 5 are side and rear end views of a cart the door 2 of which is
arranged to open by a backward and downward movement. The arrangement
of the lever arms 4 and arms or links 7 in this case is similar to that herein-
before described with reference to and shown in Figs. 1 and 2, except that the
levers 4 and arms or links 7 normally incline upwards and backward instead of
downward and backward and are normally held in this position with the door
in its raised and closed position by a weighted arm Ca fixed to one of the levers
for example the lever 7, as shown.

page_text: Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
1. A cart provided with a door mounted and operating substantially as herein-
before described with reference to the drawings annexed.
2. The combination with a cart having an opening at its rear end of a ver-
tically movable door, a pair of lever arms jointed to the body of the cart and
to the door and provided with an operating arm or handle, a pair of arms or
links also jointed to the body of the cart and to the door, a pair of levers jointed
to the door and adapted when turned upward to lock the door to the body of tho
cart and when turned downward to come in contact with the ground and auto-
matically open the door when the cart is tipped backward, and means for securing
the last mentioned levers in their raised and locking position, substantially as
described.
3. A covered low tipping cart provided with a door and means for opening
closing and securing the same constructed arranged and operating substantially
as herein before described with reference to and shown in the drawings annexed.
1 1
ו
D
1
1000
Dated fuay
TOOTHAO TO
1030
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.