Portable Lift or Loading Platform.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Portable Lift or Loading Platform.
WILLIAM THOMAS ROUNSIVELL, Mechanical Engineer, of 25, Kitto Road, Nun-
head, London, S.E., do hereby declare the nature of this invention to be as
follows:
The object of my invention is to provide a means for unloading goods from
vans, carts, or the like and conveying them on the same apparatus to any other
place for storing same. The invention consists of a horizontal frame work of
iron or wood, mounted on wheels so arranged as to be capable of guiding frame
work in any direction. At each corner is a post fitted with a vertical screw.
At bottom of screw suitably arranged on framing are four sprocket wheels, one
to each screw. These four wheels are connected together by means of a pitched
chain or other suitable means in order to compel them to work simultaneously.
At top of one post is fixed a pair of bevel wheels and crank handle for the pur-
pose of giving a revolving motion to the screw. This screw by means of the
chain referred to above revolves the other screws at the same time. Built in
between the vertical posts and made to slide freely is a platform. This is pro-
vided at its corners or near to corners, with nuts engaging into the vertical screws,
thus when handle is turned all four screws are put in motion and platform is
raised up or down in a level position. Instead of four posts and screws three
may be used with the same effect.
Dated this Eighth day of November 1898.
WILLIAM THOMAS ROUNSIVELL.
Portable Lift or Loading Platform.
WILLIAM THOMAS ROUNSIVELL, Mechanical Engineer, 25, Kitto Road, Nunhead,
London, S.E., 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: —
The object of my invention is to provide a method for unloading goods from
vans, carts or the like and conveying them on the same apparatus to any other
place for storing purposes. The invention consists of a horizontal framework
of iron or wood A mounted on three or four wheels B1 B2 B3 B one or two of
them being fixed in a pivoted bracket or brackets C1 C2 bolted to frame work.
At each corner is an upright post of angle iron or any suitable section or
material D1 D2 D3 D4. In each of these corners is fixed a vertical screw E¹ E² E³ E'.
The moving platform F is constructed to fit in the frame A and at each corner is
Price 8d1

page_text: fitted with a nut engaging into the four vertical screws E¹² E3 E4 of any suitable
shape such as vee or square. At the top end of one of these screws at either
corner as convenient is fitted a bevel wheel and pinion G1 G2 carried in a
bracket H and provided with a handle I. At the lower ends of the screws is
fitted four sprocket wheels J1 J2 J3 J4. A chain K of any suitable design connects
all these together in order to make them revolve simultaneously. A tightening
wheel L is also provided to take up the slack chain. The action is as follows.
To move the cradle or platform F up or down the handle I is revolved, this
turns the screw and bevel wheel G¹, this screw in its turn communicates its
motion to the other three screws by means of the chain K thus causing them all
to revolve in the nuts fixed on the platform and so raising it up or down as desired.
If required an arrangement for propelling the complete machine can be also
applied.
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 application and combination of parts as herein and before described and
illustrated.
2. The same combination of parts embodying the same idea as herein and
before described but designed to meet the various commercial requirements.
Dated this Fifth day of August 1899.