Year: 1888

page_text: Date of Application, 14th Feb., 1888
Complete Specification Left, 14th Nov., 1888-Accepted, 14th Dec., 1888
We JOHN HARWOOD SIMPSON, of 8 Park Place Villas, Paddington, in the county
of Middlesex, Engineer, and SAMUEL PORTER, of 90, Whitestone Lane, Birkenhead,
in the county of Chester, Engineer, do hereby declare the nature of this invention to
be as follows:
-
The invention relates to excavators in which a cutting and excavating shovel, or
scoop, has an oscillating motion about a fulcrum.
The object is to so construct such excavators that the oscillation of the shovel
or scoop may be varied in such manner that the depth of cut may be readily adjusted;
and that the area capable of being operated on by the said shovel or scoop may be
greatly increased.
Under our invention a crane, derrick, or suitable movable carrying and operating
apparatus, of any usual or desired construction is employed, and the shovel or scoop is
connected to a fulcrum, or centre, carried by the said apparatus, in such manner that
the distance of the shovel or scoop from the said fulcrum or centre may be varied.
Our invention is conveniently carried into effect as follows:-A cylinder secured to the
shovel or scoop is fitted with a piston having a rod coupled to the said fulcrum or
centre. Fluid pressure actuates the piston, and guides are provided for the piston
rod crosshead.
A further improvement under a further part of our invention consists in connecting
the fulcrum, or centre, above mentioned, to the crane, derrick, or apparatus so that the
said fulcrum or centre is movable as regards the said crane, derrick, or apparatus.
The above part of our invention is conveniently carried into effect by adapting the
said fulcrum or centre to slide in or on guides and in coupling it to the crane, derrick,
or apparatus by means of a piston and rod or equivalent motor actuated by fluid
pressure.
This Thi imouth 1000

page_text: We JOHN HARWOOD SIMPSON of 8 Park Place Villas Paddington in the county of
Middlesex Engineer and SAMUEL PORTER of 90 Whitestone Lane Birkenhead in
the county of Chester 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:-
The invention relates to excavators in which a cutting and excavating shovel
or scoop has an oscillating motion about a fulcrum.
The object is to so construct such excavators that the oscillation of the shovel
or scoop may be varied in such manner that the depth of cut may be readily adjusted
and that the area capable of being operated on by the said shovel or scoop may
be greatly increased.
Under our invention a crane derrick or suitable movable carrying and operating
apparatus of any usual or desired construction is employed and the shovel or scoop is
connected to a fulcrum or centre carried by the said apparatus in such manner that
the distance of the shovel or scoop from the said fulcrum or centre may be varied.
Our invention is conveniently carried into effect as follows. A cylinder secured to
the shovel or scoop is fitted with a piston having a rod coupled to the said fulcrum or
centre. Fluid pressure actuates the piston and guides are provided for the piston
rod crosshead.
A further improvement under our invention consists in connecting the fulcrum or
centre above mentioned to the crane derrick or apparatus so that the said fulcrum or
centre is movable as regards the said crane derrick or apparatus. The above part of
our invention is conveniently carried into effect by adapting the said fulcrum
or centre to slide in or on guides and in coupling it to the crane derrick or apparatus
by means of a piston and rod or equivalent motor actuated by fluid pressure.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is an elevation of an excavator under our invention. a is the framework of
a crane or derrick which is provided with a boiler and winding engine of any usual
or suitable construction. jib. e shovel or scoop. d fulcrum pivot or centre carried
by the jib b. e crosshead fitting around the pivot or fulcrum d. guide bars
attached to the shovel or scoop c and fitting around the crosshead e.
g cylinder
attached to the shovel or scoop c and provided with a piston the rod h of which
is connected to the crossbead e. i steam pipe and exhaust pipe coupled to, the
crosshead e. From the pipes ij ways lead to the valve k; from the valve a way
passes through the piston rod into the cylinder. Motion is given to the valve k
by a hand wheel and gear 1. The pipes are flexible and carried in movable
bearings
1
1
1
1

page_text: The valve and steam connections may be made in many ways and are of any usual
or convenient construction.
The action is as follows. Steam is admitted to the bottom of the cylinder whilst
the cut is being made, and to the top of the cylinder so as to draw the shovel or scoop
away from the cut when the said shovel or scoop is being lowered into position to take
a following cut. The elasticity of the steam allows the shovel or scoop to give when
any obstruction is met with during the cut.
Fig. 2 is an elevation of a modification of apparatus in which the fulcrum or
pivot d is attached to a block n free to move in guides o in the jib b, a cylinder
piston and rod p are used to give motion to the block n. The same letters denote
parts equivalent to those shown in fig. 1. Steam air or water power may be used in
the cylinders.
It will be obvious that the disposition of the cylinders and the means for connecting
rods to the crosshead and block may be varied in many ways to obtain the desired
result.
When apparatus under the second modification is used the angle of the cut may be
varied by causing the block n to slide up and down the jib.
I am aware that the Patents No. 2757 of 1887 and No. 16701 of 1886 have been
granted to Thomas Whitaker for "Improvements in or relating to excavating or to
machinery for excavating" and I wish to be understood that I do not claim anything
described or claimed therein.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what
we claim is.
First. The combination of a derrick or crane with a shovel or scoop stationary
fulcrum or pivot and cylinder and connections substantially in the manner and for the
purpose setforth.
Second. The combination with a derrick or crane of a shovel or scoop movable
fulcrum or pivot, and cylinders and connections substantially in the manner and for
the purpose setforth.
Third. Excavators constructed as herein setforth and as shown by the drawings.
Dated this 18th day of November 1888.

page_text: Date of Application, 14th Feb., 1888
Complete Specification Left, 14th Nov., 1888
Complete Specification Accepted, 14th Dec., 1888
We JOHN HARWOOD SIMPSON, of 8 Park Place Villas, Paddington, in the county
of Middlesex, Engineer, and SAMUEL PORTER, of 90, Whitestone Lane, Birkenhead,
in the county of Chester, Engineer, do hereby declare the nature of this invention to
be as follows:
The invention relates to excavators in which a cutting and excavating shovel, or
scoop, has an oscillating motion about a fulcrum.
The object is to so construct such excavators that the oscillation of the shovel
or scoop may be varied in such manner that the depth of cut may be readily adjusted;
and that the area capable of being operated on by the said shovel or scoop may be
greatly increased.
Under our invention a crane, derrick, or suitable movable carrying and operating
apparatus, of any usual or desired construction is employed, and the shovel or scoop is
connected to a fulcrum, or centre, carried by the said apparatus, in such manner that
the distance of the shovel or scoop from the said fulcrum or centre may be varied.
Our invention is conveniently carried into effect as follows:-A cylinder secured to the
shovel or scoop is fitted with a piston having a rod coupled to the said fulcrum or
centre. Fluid pressure actuates the piston, and guides are provided for the piston
rod crosshead.
A further improvement under a further part of our invention consists in connecting
the fulcrum, or centre, above mentioned, to the crane, derrick, or apparatus so that the
said fulcrum or centre is movable as regards the said crane, derrick, or apparatus.
The above part of our invention is conveniently carried into effect by adapting the
said fulcrum or centre to slide in or on guides and in coupling it to the crane, derrick,
or apparatus by means of a piston and rod or equivalent motor actuated by fluid
pressure.
T
1
TL th
Wh.. 1948

page_text: The valve and steam connections may be made in many ways and are of any usual
or convenient construction..
The action is as follows. Steam is admitted to the bottom of the cylinder whilst
the cut is being made, and to the top of the cylinder so as to draw the shovel or scoop
away from the cut when the said shovel or scoop is being lowered into position to take
a following cut. The elasticity of the steam allows the shovel or scoop to give when
any obstruction is met with during the cut.
Fig. 2 is an elevation of a modification of apparatus in which the fulcrum or
pivot d is attached to a block n free to move in guides o in the jib , a cylinder
piston and rod p are used to give motion to the block n. The same letters denote
parts equivalent to those shown in fig. 1. Steam air or water power may be used in
the cylinders.
It will be obvious that the disposition of the cylinders and the means for connecting
rods to the crosshead and block may be varied in many ways to obtain the desired
result.
When apparatus under the second modification is used the angle of the cut may be
varied by causing the block n to slide up and down the jib.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what
we claim is.
First. The combination of a derrick or crane with a shovel or scoop stationary
fulcrum or pivot and cylinder and connections substantially in the manner and for the
purpose setforth.
Second. The combination with a derrick or crane of a shovel or scoop movable
fulcrum or pivot, and cylinders and connections substantially in the manner and for
the purpose setforth.
Third. Excavators constructed substantially as herein setforth.