Improvements in Wheeled Skips or Tip Boxes.
Year: 1889

page_text: Date of Application, 4th Sept., 1889-Accepted, 5th Oct., 1889
COMPLETE SPECIFICATION.
Improvements in Wheeled Skips or Tip Boxes.
We, LEONHARD BÖHM, Brewmaster, and KARL RUMPF, Machinist, both of Stettin
in the kingdom of Prussia and German Empire, 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
A tip-cart constructed according to these Improvements consists of a frame resting
on three wheels; the tilting part or box, resting by pivots on bearings carried by the
frame; and tilting and locking devices.
We will describe our Invention with reference to the accompanying drawings in
each of the Figures of which similar letters are employed to denote similar parts.
The frame B of the cart rests on three wheels and has on each side two open
bearings c and d. The tilting box A rests with its pivots a on the open bearings c
and it is so constructed that the pivots a are on the forward side of a vertical plane
passing through the centre of gravity of the box, hence the box will normally tend to
overbalance into the emptying position. The box is retained in a horizontal position
by means of the locking arms C and the lugs e and f between which the bars or
extensions g of the box A fit.
The locking arms C and the joints are mounted on the frame B so that the arms
may turn on the point i. The locking arms are joined or held together by an arm or
connection which consists of the middle piece k which has oblique ends and is fitted
with a handle k¹. The centre piece is connected with the locking arms by means of
two tension springs 1, which are enclosed in two pipes m firmly secured to the locking
arms C. The inner ends of the pipes m are also cut off obliquely and thus fit against
the similar oblique surfaces of the centre piece k so that when the handle is lifted
up, the two tubes m m are pressed aside and consequently also, the two locking arms C.
The locking arms then turn in the joints h.
The tilting arrangement consists of the levers D D on each side of the box A and
which are firmly connected with the locking arms by means of square pins and of
the levers FF which turn at the points a and n and connect the levers D D with the
box A.
Figures 1 and 2 shew the box in the state of rest, the locking devices are shewn in
section in Fig. 1.
The manipulation of the cart is as follows:-
After the box A has been filled and the cart has been drawn to the place where it is
required to be emptied, the handle k' is lifted and the locking arms are thereby pressed
aside. The extensions or projections g on the box A thus become free or out of contact
with the locking arrangement. The box has a tendency to overbalance as already
hereinbefore described and it therefore at once drops into the position shewn in Fig.
so soon as the parts g become disengaged, and the contents of the box are partly
emptied. To secure the complete emptying of the box, the locking arms CC are
pressed downwards by means of the connecting bar m km which brings the box into
the position shewn in Fig. 4 and the contents are thus completely discharged.
When the box has been emptied, it falls back into the position shewn in Fig. 3 from
which it is restored into the horizontal position by hand, when the arms open to allow g
to pass, and then close automatically and securely lock the box.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
(1) A tip-cart having its frame carried on three wheels. the tilting box mounted

page_text: and liberating device, constructed arranged and operated so that on the opening of the
locking arms the box falls into the position shewn in Fig. 3; substantially as herein-
before described with reference to the accompanying drawings.
(2) In a tip-cart; disengaging devices consisting of the middle piece with
the handle k', the tension springs 11 and the pipes mm, constructed arranged and
operating substantially as hereinbefore described with reference to the accompanying
drawings.
(3) In a tip-cart; a tilting arrangement consisting of the locking arms C and D
securely connected together, and the link F; all constructed arranged and operating
substantially as and for the purpose herein before described and as illustrated by the
accompanying drawings.
Dated this 3rd day of September AD 1889.
WILLIAM E. HEYS,
Agent for the Applicants.