provements connected with Elevators.
Year: 1898

page_text: PROVIDIUNAL DIECIFICATION
Improvements connected with Elevators.
I, GILBERT LITTLE, of The New Conveyor Co. Ltd., Brook Street, Smethwick,
in the County of Stafford, Chairman and Managing Director of the said Company,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to elevators of the well known kind in which the
material is elevated by a series of buckets on a band or chain passing round a
drum or pulley in the elevator boot or base and round a corresponding drum or
pulley at the top. Heretofore no efficient means have been provided for ensuring
a regular feed of the material into the elevator buckets in the boot and conse-
quently the buckets have been liable to become jambed in the elevator boot and
the elevator band or chain broken. This defect is overcome by my invention
which ensures a regular feed of the material into the elevator boot and buckets
and my invention is carried out as follows:-
Adjacent to the inlet in the elevator boot or base I provide an open topped
inclined shaking feed trough the upper or lower end of which is carried by brackets,
rods, chains or ropes the height of which can be regulated so as to alter the inclina-
tion of the feed trough. The front of the feed trough is immediately over the inlet
to the elevator boot and a vibratory motion is transmitted to it by means of cams,
cranks, eccentrics or levers or other suitable means. Above the feed trough is a
hopper the sides of which are shaped to extend down the trough on to the bottom
of the same so that the bottom of the feed trough also forms the bottom of the
hopper. At the front of the hopper is an outlet the area of which is regulated
by a sliding door.
The material to be elevated is pitched into the hopper or conveyed thereto by
mechanical means or conducted from hoppers through shutes to it and when the
sliding door is opened the vibratory motion of the trough causes the material to
move down through the outlet and along the trough and into the elevator boot
and buckets, at a regular flow according to the inclination or speed of the trough
and the amount the sliding door is open. The inclined feed trough receives
motion from the driving shaft of the elevator or from any other convenient source.
Dated this 29th day of October 1898.

page_text: 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 fol-
lowing statement:-
-
This invention has reference to elevators of the well known kind in which the
material is elevated by a series of buckets on a band or chain passing round a
drum or pulley in the elevator boot or base and round a corresponding drum or
pulley at the top. Heretofore no efficient means have been provided for ensuring
a regular feed of the material into the elevator buckets in the boot and conse-
quently the buckets have been liable to become jambed in the elevator boot and
the elevator band or chain broken. This defect is overcome by my invention
which ensures a regular feed of the material into the elevator boot and buckets and
my invention is carried out as I will describe by referring to the accompanying
drawings on which Fig. 1 is a sectional elevation of my invention applied to an
ordinary elevator; and Figs. 2 and 3 are respectively a plan and end elevation of
the same.
Some of the
The arrows shew
The same letters of reference indicate the same parts in all the figures.
A is an ordinary elevator, boot and a¹ is the inlet to the same.
elevator buckets are indicated by dotted lines and marked B.
the direction in which the elevator is intended to run.
Adjacent to the inlet a¹ in the elevator boot or base A I provide an opened
topped inclined shaking feed trough C the lower end of which is carried by two
chains or ropes marked d¹ from the cross bearer E the length of these chains
or ropes being adjustable in any ordinary manner.. The back of the inclined
trough has a pivot pin f fixed underneath it which engages in the step or bearing
block G which is adjustable for height along the stationary bracket H by means
of the nut J and screw I which is fixed to the block G. Thus the height of the
inclined shaking feed trough C can be regulated so as to alter the inclination
of the same.
The front of the feed trough is immediately over the inlet a¹
to the elevator boot A and vibratory motion is transmitted to the trough C by any
suitable means as for instance by the grooved cam K which is fixed upon the
horizontal shaft ¹ and which receives rotary motion by the chain on the chain
wheel L from any convenient source. On the underside of the feed trough C
there is a block M made with a projecting pin m to take into the groove of the
cam K this groove being shaped so as to cause the trough C to vibrate sideways.
Above the feed trough C I provide the hopper N which is open at the bottom
and its sides n¹n n³ are shaped so as to extend down to the inclined bottom of
the trough C which thus forms the bottom of the hopper N. At the front of the
hopper is an outlet O the area of which is regulated by a sliding door P.
The material to be elevated by the elevator is pitched into the hopper N or
conveyed thereto by mechanical means or conducted from hoppers through shutes
to it or otherwise fed into the hopper N and when the sliding door P is opened
the vibratory motion of the trough C causes the material to move down and
through the outlet O and along the trough and through the inlet a¹ into the
elevator boot A and buckets B at a regular flow according to the inclination of the
trough C or the speed at which it vibrates and the amount the sliding door is
open.
The accompanying drawings illustrate what I consider to be the best means
for carrying my invention into practice but it is to be understood that my inven-
tion is not limited to the precise details shewn as for instance, without departing
from the nature of my invention, other means than those shewn may be employed
for carrying the inclined shaking feed trough C and for imparting the necessary
vibratory motion to it.
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:-
The combination with the base or boot of an elevator of the kind herein

page_text: referred to, of a hopper to contain the material to be elevated and made with an
open inclined bottom and an outlet at the front with regulating door, an inclined
shaking feed trough suspended and made adjustable for height and forming a
bottom to said hopper, the lower end of said trough being immediately above the
inlet to the elevator boot or base, and means for imparting vibratory motion to
the inclined shaking feed trough so that the material will pass through the outlet
from the hopper down the feed trough into the elevator and buckets in regular
quantities, substantially as set forth.
Dated this 28th day of July 1899.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.