An Improved Cart.
Year: 1891

page_text: Date of Application, 25th July, 1891
Complete Specification Left, 25th Apr.. 1892-Accepted, 28th May, 1892
PROVISIONAL
SPECIFICATION.
An Improved Cart.
I, MARK ADDISON LIBBEY, of South Berwick, Maine, U.S.A., Inventor, do
hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in carts, and more especially to dumping-
carts; and the object of my invention is to provide a simple and convenient cart
that will be very easily constructed and operated that will combine lightness and
strength, that will occupy but little space, and that may be easily drawn.
To this end my invention consists in a cart having a cylindrical body, with a
sliding cover pivoted between the wheels of the cart, and in a gear mechanism for
operating said body.
The cylinder, forming the body of the cart, is made, preferably, of sheet metal,
and is formed with cone-shaped ends, which give to it additional strength, and with
a sliding cover. Each end of the cylinder has a thickened central portion and
projecting therefrom is an integral trunnion which projects into the hub of the
wheel, and to which trunnions a frame is pivoted. The frame is of U-shape and
its terminal ends are pivoted upon and supported by the trunnions. It extends
forwardly from the cylinder, and attached to the front part of the frame are the
shafts, although a pole may be provided if two horses are to be used.
One or both of the ends are also provided with an annular curved flange.or
pulley which is formed thereon or attached thereto, and to which are secured the
ends of the chain which passes over a sprocket-wheel fastened on the shaft, which
is supported by and turns in the lugs on the under side of the frame. A shaft
extends across the frame and the squared ends thereof extend beyond the sides of
the frame.
One end of the chain is fixed to an eye of the pulley and the other is attached to
the adjustable hook of said pulley, so that when the shaft is turned the sprocket-
wheel, chain, and pulley will turn the cylinder also. The hook has a screw-threaded
shank which fits in a lug of the pulley and is provided with a suitable nut to
prevent it from working loose in the lug, so that by turning the hook into the lug
the chain may be tightened.
Supported in an upright which rests upon a cross-piece of the frame, is a vertical
shaft, having a squared upper end, and having its lower end provided with a gear-
wheel which meshes with a gear-wheel on the shaft so that by turning the vertical
shaft the horizontal shaft and cylinder may be turned. The shaft is also provided
with two ratchet or cog wheels which are fixed thereto beneath the platform of the
cart, and pivoted to the under side of the platform, so as to extend horizontally
above said cog or ratchet wheels, are suitable arms having teeth upon their under
sides to fit the teeth of the ratchet wheels, and having at one end a vertical portion
which projects through the platform. The arms are held normally from engage-
ment with the wheels by springs which are attached to the bottom of the platform
and to a foot of the arms.
The cart is provided with a suitable seat supported by a spring-arm, which is
attached to the platform, and with a spring-draft whiffletree which is pivoted to the
under side of the frame and by which the cart is hauled.
Dated this 24th day of July 1891.
W. H. MUNNS,
Agent for Applicant.

page_text: COMPLETE
SPECIFICATION.
An Improved Cart.
I, MARK ADDISON LIBBEY, of South Berwick, Maine, U.S.A., Gentleman,
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:―
My invention relates to improvements in carts and more especially to dumping-
carts, and the object of my invention is to provide a simple and convenient cart
that will be very easily constructed and operated, that will combine lightness with
strength, that will occupy but little space, and that may be easily drawn.
To this end my invention consists in a cart having a cylindrical body, with a
sliding cover, pivoted between the wheels of the cart, and in a gear mechanism for
operating said body.
This construction will be hereinafter fully described and specifically pointed out
in the claims.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar letters of reference indicate corresponding parts in
all the figures.
Figure 1 is a broken inverted plan of the cart ;
Fig. 2 a side elevation of the same;
Fig. 3 a detailed view of the brake mechanism for fixing the position of the
main cylinder taken from the line. r of Fig. 1;
Fig. 4 a cross section on the line y y of Fig. 1;
Fig. 5 a transverse section of the cylindrical body with the cover open; and
Fig. 6 a plan view of a modified form of cart.
The cylinder A forming the body of the cart, is made preferably of sheet metal,
and is formed with cone-shaped ends A', which give it additional strength, and
with a sliding cover B; which has lugs a, formed upon the ends to overlap the edges
of the cylinder and hold the cover in position thereon, a flanged edge B which fits
upon the flanged edge 6 of the cylinder opening, and with a spring latch d, which is
attached to the cover and is engaged by the catch e on the cylinder, to hold the
cover in closed position.
Each end A of the cylinder has a thickened central portion A³, and projecting
therefrom is an integral trunnion A³, which projects into the hub of a wheel D, and
to which trunnions the frame E is pivoted. The frame E is of an U-shape and its
terminal ends are pivoted upon and supported by the trunnions A³. It extends
forwardly from the cylinder A and attached to the front part of the frame are the
shafts E, although a pole may be provided, if two horses are to be used. One or
both of the ends A' is also provided with an annular curved flange or pulley F,
which is formed thercon or attached thereto and to which are secured the ends of
the chain H, which passes over a sprocket wheel H fastened on the shaft J, which
is supported by the turns in the lugs f on the under side of the frame E. The
shaft J extends across the frame E and the squared ends J¹ thereof extend beyond
the sides of the frame E.
One end of the chain His fixed to an eye g of the pulley F, and the other is
attached to the adjustable hook h of said pulley, so that when the shaft. J is turned,
the sprocket wheel H, chain H', and pulley F, will turn the cylinder A. also.
The hook has a screw-threaded shank as shown, which fits in a lug ¹, of the
pulley F, and is provided with a suitable nut to prevent it from working loose in
the lug so that by turning the book into the lug the chain H' may be tightened.
Supported in the upright frame K, which rests upon a cross piece E* of the
frame E, is a vertical shaft L, having a squared upper end L', and having its lower
end provided with a gear wheel L' which meshes with a gear wheel M, on the
shaft J, so that by turning the shaft L, the shaft J and cylinder A, may be
tummod

page_text: The shaft J is also provided with two ratchet or cog wheels j which are fixed
thereto beneath the platform N of the cart, and, pivoted to the under side of
the platform N, so as to extend horizontally above said cog or ratchet-wheels, are
the arms O having teeth / upon their under sides to fit the teeth of the ratchet-
wheels, and having at one end a vertical portion O', which projects through the
platform N. The arms O are held normally from engagement with the wheels j
by the springs m which are attached to the bottom of the platform N, and to a
foot O of the arms O.
The cart is provided with a suitable seat P, supported by a spring arm P¹, which
is attached to the platform N, and with a spring draught whiffletree Q, which is
pivoted to the under side of the frame E, and by which the cart is hauled.
The cart is operated as follows: By applying a hand crank or wrench to the
squared end of the shaft L, or to the squared end J¹ of the shaft J, the shaft J
may be turned and this will turn the body A as described. When the cart is to be
loaded, the body A is turned in a position to bring the cover B on top, and when
it is filled the cover is closed. When the load is to be dumped, the cover is opened
and the body A turned bottom up in the manner described.
It will thus be seen that the cart may be instantly dumped. The cart will
be evenly balanced, and if the load shifts it may be changed by simply turning
the shaft L or J, and the position of the body A may be fixed by simply pressing
with the foot upon the vertical portion O' of the arm O, thus engaging the ratchet
wheel and preventing the shaft J and body A from turning.
The body A. affords a convenient and safe receptacle for tools, and occupies but
little space in proportion to the load it carries. It is evident that it may be applied
to a four wheeled cart as well as to one of two wheels.
In Figure 6 I have shown a modified form of cart in which the horse may be
placed very near the load to enable it to be handled with greater case. In this
case the frame E is shortened, it being just long enough to extend around the front
of the cylinder. The frame is connected with the body A and wheels D, in the
manner already described and one or both ends of the body are provided with
a gear wheel F, in place of the pulley F, and the gear wheel meshes with another
gear wheel R, on the end of the shaft S, said shaft being mounted in suitable
bearings n on the frame E, and having a squared end S', to which a hand crank or
wrench may be applied to turn the shaft. It will thus be seen that by turning the
shaft S the body A will be also turned by means of the gears F' and R.
1 do not confine myself to the precise mechanism shown for operating the body A,
as it is evident that it may be done in many ways without departing from the
principle of my invention.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A dumping cart having a hollow rotable cylindrical body mounted in a
suitable drawing frame, and provided with a sliding cover, substantially as
described.
2. A. dumping cart consisting essentially of a hollow cylindrical body having a
sliding cover attached thereto, and having trunnions upon its ends which project
into the wheel hubs of the cart, a suitable drawing frame pivotally attached to said
trunnions, a shaft mounted in said frame and having connection with said body
whereby the body may be revolved, substantially as described.
3. A dumping cart consisting essentially of a hollow cylindrical body having a
sliding cover attached thereto, and having trunnions upon its ends which project
into the wheel hubs of the cart, a suitable drawing frame pivotally attached to said
trunnions, a shaft mounted in said frame and having a sprocket wheel and chain
connection with said body whereby the body may be revolved, and a brake con-
nection with said shaft whereby the position of the shaft and of the body may be
fixed, substantially as described.

page_text: 4. The combination, with the rotable body A, having the sliding cover B, and
having the trunnions A³, and pulley F on the end thereof, said trunnions projecting
into the wheel hub as described, of the frame E pivoted to said trunnions, the shaft J
mounted in said frame and connected with the pulley F by the sprocket wheel H
and chain H' and a brake mechanism for fixing the shaft J and body A in position,
substantially as described.
5. The combination, with the rotable body A, having the sliding cover B, and
having the trunnions A³, and pulley F on the end thereof, said trunnions projecting
into the wheel hubs as described, of the frame E pivoted to said trunnions, the
shaft J mounted in said frame and connected with the pulley F by the sprocket
wheel H and chain H', the vertical shaft L having means as gear wheels Land M,
for connecting it with the shaft J, and a brake mechanism consisting of the wheel j,
and arm having teeth 1, for fixing the shaft J and body A in position, sub-
stantially as described.
A
$11000
W. H. MUNNS,
Applicant's Agent.