Year: 1886

page_text: I WILLIAM GREEN HERBERT of Beresford Chambers Dale Street Liverpool in
the County of Lancaster Dealer in Works of Art do hereby declare the nature of
this invention to be as follows:-
The invention relates to elevators of the endless chain or band and bucket type
designed mainly for raising grain salt and like substances in bulk.
The objects are (a) to render more certain by the use of positive gearing the
action of the collecting and delivery appliances for the buckets in elevators
constructed substantially as described in the specification to British Letters Patent
No. 639 of the year 1884 granted to me (b) to regulate the speed of travel of the
said buckets between the bucket collecting and delivering devices (c) to enable the
chains to fold freely when buckets are collected one on the other (d) to enable
buckets generally to readily descend into the grain or other substance, and (e) to
facilitate delivery of grain or other substance from buckets to shoots.
The first part applies to elevators in which buckets are superposed or collected
substantially as set forth in the above mentioned specification; and consists
essentially in gearing the collecting and delivery wheels rollers or their equivalents
together by means of toothed wheels chains and chain wheels or other suitable
appliances.
Second. This part also applies to bucket collecting elevators and consists in
fitting friction clutches or equivalent mechanism on or between the collecting and
delivering devices to regulate the speed of delivery of the buckets.
The third part also relates to bucket collecting elevators and consists in carrying
the buckets whilst being collected in guides placed at an angle between the
vertical and horizontal preferably about 15°.
The fourth part relates to bucket elevators generally and consists in constructing
the bottom of such elevators with a cage made of bars or their equivalents curved
and arranged in the direction of travel of the buckets and in providing the spindle
or its equivalent around which the buckets are guided on the lowest part of their
course with agitating arms or blades so disposed as to travel between the buckets
and the bars of the cage, and to project beyond the said bars.
The fifth part consists in fitting the shaft carrying the buckets whilst delivering
grain to the shoots, or any equivalent shaft with vanes or their equivalents to
form a continuation to the shoot during delivery of the grain.

page_text: Improvements in and Applicable to Grain and like Elevators.
I WILLIAM GREEN HERBERT of Beresford Chambers, Dale Street, Liverpool, in
the County of Lancaster, Dealer in Works of Art, 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 elevators of the endless chain or band and bucket type
designed mainly for raising grain, salt and like substances in bulk.
The objects are (a) to render more certain by the use of positive gearing the
action of the collecting and delivery appliances for the buckets in elevators,
constructed substantially as described in the Specification to British Letters Patent
No. 639 of the year 1884 granted to me (b) to regulate the speed of travel of the
said buckets between the bucket collecting and delivery devices (c) to enable the
chains to fold freely when buckets are collected one on the other, (d) to enable
buckets generally to readily descend into the grain or other substance and (e) to
facilitate delivery of grain or other substance from buckets to shoots.
The first part applies to elevators in which buckets are superposed or collected
substantially as set forth in the above mentioned specification; and consists
essentially in gearing the collecting and delivery wheels, rollers or their equivalents
together by means of toothed wheels, chains and chain wheels or other suitable
appliances.
Second. This part also applies to bucket collecting elevators and consists in
fitting friction clutches or equivalent mechanism on or between the collecting and
delivering devices to regulate the speed of delivery of the buckets.
The Third part also relates to bucket collecting elevators and consists in carrying
the buckets whilst being collected in guides placed at an angle between the vertical
and horizontal preferably about 15°.
The Fourth part relates to bucket elevators generally and consists in constructing
the bottom of such elevators with a cage made of bars or their equivalents curved
and arranged in the direction of travel of the buckets and in providing the spindle
or its equivalent around which the buckets are guided on the lowest part of their
course with agitating arms or blades so disposed as to travel between the buckets
and the bars of the cage and to project beyond the said bars.
The Fifth part consists in fitting the shaft carrying the buckets whilst delivering
grain to the shoots, or any equivalent shaft with vanes, aprons, or bridges, or their
equivalents, to form a continuation to the shoot during delivery of the grain.
DESCRIPTION OF THE DRAWINGS.
Fig. 1. is a side elevation, Fig. 2. a front elevation and Fig. 3. a vertical section
of my improved elevator, and illustrates the five heads of my invention.
A metal frame 1. carries three cross shafts 2. 3. and 4, one near the top and the
other two near the bottom so disposed that when the frame rests on its base the
lower shafts are (for the purpose of allowing the chains carrying the buckets to

page_text: form loops as shown) in advance of the upper shafts-On these shafts are secured
chain wheels 5. 6. and 7. On the shaft 3. there is also a loose chain wheel 8.
capable of being made to grip the chain wheel 6. by means of friction.
The necessary friction is obtained by pressing the said wheel 8 against the
wheel 6. by means of the lever 9. pivotted at 10. The lever 9 is caused to bear
more or less against the boss of the wheel 8. by means of the screwed tie rod, 11.
and hand wheel nut 12. The tie rod 11. is connected to a lever 13. pivotted at 14.
and arranged to bear against the loose cap 15. on the shaft 3.-By this arrangement
end thrust on the shaft 3. is avoided. It will be evident that any usual friction
clutch arrangements might be used for causing the loose wheel 8. and wheel 6. and
shaft 3. to rotate together. 17 chain gearing the wheels 6. and 7 together.-On
the shafts 2 and 3. are chain wheels 18. 19. which carry the endless chains 20.
The said chains 20. are attached to the buckets 21. by means of pins passing
through the links 22. or the links 22 may be cast or formed with the buckets; and
lengths of chain used to connect such links from bucket to bucket. 23. are guide
pieces cast on rivetted or otherwise secured to the buckets. These also serve to
rest on the helical feathers 29. 30.
The buckets are made in any usual way or they may be made advantageously
with cast ends rivetted to sheet metals sides-On the shaft 2. is secured a
roller 24. carrying aprons 25. The aprons 25. are in number equal to the number
of buckets which pass the wheels 18. at each revolution and the said aprons are so
disposed that as each bucket is discharging its contents down the shoot 26. on the
frame 1. they form a continuation of the said shoot.-By this means the grain
or substance being elevated cannot miss the shoot.-27 are shafts carried in
bearings 28 on the frame 1. and provided each with a helical feather 29. 30.
The shafts 27. are geared to the shaft 4. by mitre wheels 31.
In the apparatus shown there are three aprons on the shaft 2. and the
wheels 18. 19. are of such diameter that three buckets pass at each revolution.
The chain wheels 5. 6. 8 are of equal diameters and the chain wheel 7. is of one
third the diameter of 5.-The mitre wheels 31. are of equal diameter and each
portion 29. 30. of the helical feather makes a complete revolution.-The pitch
of 29 being equal to the distance between the buckets, when they are piled on one
another, or thereabouts, and the pitch of 30. being equal to the distance from the
leading edge of one bucket to the leading edge of the next, when they are their
full distance apart. 32 is a cage of cast or wrought metal bars or other suitable
material; carried in bearings on the cage, is a cross shaft 33. having secured
thereon chain wheels 34 and arins 35 which project between the bars of the cage.
When the shaft 33. is caused to rotate these arms enter into and amongst the
substance to be elevated, so as to agitate it and cause it to freely pass between the
bars of the cage and enter the buckets. The number of arms on the shaft 33.
corresponds to the number of buckets which pass the wheels 34. at each revolution.
In the apparatus shown there are three ärins and the diameters of the wheels
are such that three buckets pass at each revolution; the arms should be so shaped
as to force any obstruction away from the cage. The lower ends of the endless
chains 20 pass round the wheels 34. Guide rods 36 are attached to the cage 32 and
fit within sleeves 37. which in turn fit in sleeves 38. 39 the latter passing through
bearings 40 on the frame 1. It will be evident that any other form of telescope
connection might be used between the upper and the lower parts of the elevator
such as lazy tongs and that the diameters of the wheels and proportions of the
parts of the apparatus may be altered to adapt them to various conditions.
41 represents any convenient carriers such as spars over a hatchway for supporting
the apparatus. A driving wheel is attached to one end of the shaft 2.
.
The elevator is used as follows:-It is placed on carriers such as 41 and is
secured in position by guy ropes, struts or other suitable agents. A driving band
from a deck winch or other convenient motor is passed round the driving wheel on
the shaft 2 or a motor may be geared thereto in any convenient manner. The
nut 12 is slacked off and the wheel 7 and shafts 3 and 4 and 27 are left free to

page_text: revolve. The weight of the cage 32 and connections on the chains 20 causes the
wheels 19 to revolve and with them the shafts 27, so that buckets pass from the
pile above down the helical feathers 29, and the chains lengthen out until the cage
reaches the grain or material to be elevated. The nut 12 is then tightened, the
shaft 2 is caused to revolve in the direction of the arrow and motion is given to
the chains and buckets. For each bucket raised and deposited on the pile a
bucket passes down the helical feathers of the shafts 27. The arms 35 stir the
grain salt or other substance beneath the cage and allow it to enter easily between
the bars and find its way into the buckets. As the work proceeds the nut 12 is
occasionally slacked and the cage allowed to descend by reason of the shafts 27
being free to revolve and pass buckets from the pile faster than they are deposited
thereon by having the feathers 29. 30 of two pitches each a complete revolution
there are always two buckets engaged therewith and any irregularity of action is
obviated.
When the chains are fully extended, extra lengths of chain and buckets may be
added if required by uncoupling the chains at any convenient place. It is advan-
tageous to have a ratchet wheel and pawl on the shaft 2 to prevent reverse motion.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is :-
First. The elevators in which buckets are superposed or collected, gearing the
collecting wheels 29 or their equivalents and the delivery wheels 19 or their equiva-
lents together by toothed wheels or other suitable appliances.
Second. In elevators in which buckets are superposed or collected fitting friction
clutches or equivalent mechanism on or between the bucket collecting and
delivering devices.
Third. In elevators having bucket retarding apparatus for the purpose set forth,
carrying the chain of buckets during part of its descent in an inclined position.
Fourth. The combination of the cage 32, shaft 33, wheels 34, and arms 35 for
the purpose set forth.
Fifth. The combination with the shaft 2 wheels 5 endless chain 20 buckets 21
and shoots 26 of the vanes aprons or bridges 24 for the purpose set forth.
Пятел the cleventh day of November 1000.
JU ARD UTUGADI UGT8(1
November Loo.
JAMES JOHNSON,
Agent,
Patent Office, 4, Clayton Square, Liverpool