IMPROVEMENTS IN THE CONSTRUCTION OF CARRIAGES USED WITH APPARATUS OR ELEVATORS POR ELEVATING STRAW AND OTHER PRODUCE.
Year: 1868

page_text: LETTERS PATENT to John Stafford, John William Stafford, and Daniel
Stephen Stafford, all of Nassington, near Wansford, in the County
of Northampton, Agricultural Implement and Machine Makers, for
the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF CARRIAGES
USED WITH APPARATUS OR ELEVATORS POR ELEVATING STRAW AND OTHER
PRODUCE.'
"
.
Sealed the 8th December 1868, and dated the 9th June 1868.
PROVISIONAL SPECIFICATION left by the said John Stafford, John
William Stafford, and Daniel Stephen Stafford at the Office of
the Commissioners of Patents, with their Petition, on the 9th June
1868.
We, JOHN STAFFORD, JOHN WILLIAM STAFFORD, and DANIEL STEPHEN
STAFFORD, all of Nassington, near Wansford, in the County of North-
ampton, Agricultural Implement and Machine Makers, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF
CARRIAGES USED WITH APPARATUS OR ELEVATORS FOR ELEVATING STRAW AND OTHER
PRODUCE," to be as follows:-
Heretofore carriages used for supporting and carrying straw and other
elevators have been made in such manner that the trough or spout along

page_text: which the produce is carried must always ride and be worked at one
given distance from the carriage at the commencement of the stack;
now according to our Invention the distance need not always be the
same, for at the commencement of a stack the elevator may be worked
with the spout or trough at the same distance from the ground as when
travelling, the carriage being close up to the stack, and as its height
increases it may be withdrawn therefrom. The elevator is also wholly
supported while travelling to and from work, and at other times while
not at work.
Our Invention consists in forming the carriages of two or more parts
and free to slide one within the other, or over and under each other, or
any other suitable form so as to be capable of being extended. We
prefer to impart motion to the frames by means of racks and pinions
thereon, but of course other machinery might be used, so that the frames
may be pushed up close together to occupy the space of an ordinary
carriage, or they may be extended to such a length as the trough or
spout may be, and thus to wholly support the same. By this arrange-
ment we are enabled to make the troughs much lighter, consequently
the whole apparatus is of easier draught and handled or worked with
much greater facility.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Stafford, John William Stafford, and Daniel
Stephen Stafford in the Great Seal Patent Office on the 9th
December 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
STAFFORD, JOHN WILLIAM STAFFORD, and DANIEL STEPHEN STAFFORD,
all of Nassington, near Wansford, in the County of Northampton,
Agricultural Implement and Machine Makers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of June, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said John Stafford, John William Stafford, and
Daniel Stephen Stafford, Her special licence that we, the said John

page_text: Stafford, John William Stafford, and Daniel Stephen Stafford, our
executors, administrators, and assigns, or such others as we, the said
John Stafford, John William Stafford, and Daniel Stephen Stafford, our
executors, administrators, and assigns, should at any time agree with, and
no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS
IN THE CONSTRUCTION OF CARRIAGES USED WITH APPARATUS OR ELEVATORS FOR
ELEVATING STRAW AND OTHER PRODUCE," upon the condition (amongst others).
that we, the said John Stafford, Jolin William Stafford, and Daniel
Stephen Stafford, our executors or administrators, by an instrument in
writing under our, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the
same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the said John Stafford, John William
Stafford, and Danicl Stephen Stafford, do hereby declare the nature of
our said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following
statement, reference being had to the accompanying Drawings, and to
the letters of reference marked thereon, that is to say :-
Heretofore carriages used for supporting and carrying straw and other
elevators have been made in such manner that the trough or spout along
which the produce is carried must always ride and be worked at one
given distance from the carriage at the commencement of the stack;
now according to our Invention the distance need not always be the
same, for at the commencement of a stack the elevator may be worked
with the spout or trough at the same distance from the ground as when
travelling, the carriage being close up to the stack, and as its height
increases it may be withdrawn therefrom. The elevator is also wholly
supported while travelling to and from work, and at other times while
not at work.
Our Invention consists in forming the carriages of two or more parts
and free to slide one within the other, or over and under each other, or
any other suitable form so as to be capable of being extended. We

page_text: prefer to impart motion to the frames by means of racks and pinions
thereon, but of course other machinery might be used, so that the frames
may be pushed up close together to occupy the space of an ordinary
carriage, or they may be extended to such a length as the trough or
spout may be, and thus to wholly support the same. By this arrange-
ment we are enabled to make the troughs much lighter, consequently
the whole apparatus is of easier draught and handled or worked with
much greater facility.
Figure 1 of the accompanying Drawings is a view in plan, and
Figure 2 a view in longitudinal section, of so much of a carriage con-
structed according to our Invention as will be necessary to illustrate the
manner in which it may be carried into effect,
a and b are two parts or frames of which the carriage is composed, the
frame a is stationary, and the frame b is movable. This latter frame b
has a toothed rack c attached to its under side, into the teeth of which
two pinions d, d, take, These pinions are mounted on a shaft e extending
across the carriage and supported in bearings attached to the stationary
frame a; now by communicating motion to the shaft e by a handle or
crank the pinions d, d, are caused to rotate, and the frame b is thereby
extended from the frame a or drawn up alongside or parallel with it,
according to the direction in which the pinions are caused to turn. fis
a groove or grooves (for there is one in each frame a) into which rollers,
not shown in the Drawings, fitted to the movable frame 6 take, so that
as the frame 6 is moved the rollers travel in the grooves f, and so
maintain the parallel motion of the frames, and both steady and guide
them as one moves along the other.
Figure 3 is a view in plan showing the frame extended, and Figure 4
is a similar view shewing it contracted or drawn together. Sometimes
we make the frames a and b to slide one above the other, and sometimes
we make them telescopic to slide one within the other, but we at the
same time prefer to make them as described with reference to the
Drawings. Motion may also be communicated to the two frames in
other ways, although we prefer the pinions and racks, for example, the
racks and pinions might be dispensed with altogether, and then the two
frames would be separated or extended and closed up by pulling one
from the other, or vice versa, their motion being regulated by the rollers
and guides.

page_text: And having now described the nature of my said Invention, and in
what manner the same is to be performed, we declare that we claim,-
First. The construction and employment of carriages used with
apparatus or elevators for elevating straw and other produce, so that they
may be extended or contracted when required, no matter what means
or appliances may be used to make them contract or expand, substan-
tially in manner and for the purposes herein-before described.
Second. The particular method or methods of communicating motion
to the frames of carriages used with apparatus for elevating straw
and other produce, substantially as described with reference to the
accompanying Drawings.
In witness whereof, I, the said John Stafford, for myself and on
behalf of the said John William Stafford and Daniel Stephen
Stafford, have hereunto set my hand and seal, this Fifth day of
December, in the year of our Lord One thousand eight hundred
and sixty-eight.
(L.S.) JOHN STAFFORD.