IMPROVEMENTS IN ELEVATOR OR DRIVE CHAINS AND ATTACHMENTS THERETO
Year: 1885

page_text: I, CHARLES EDWARD HALL, of the Standard Iron Works; Sheffield, Engineer, do
hereby declare the nature of my invention for "IMPROVEMENTS IN ELEVATOR OR
DRIVE CHAINS AND ATTACHMENTS THERETO" 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 link chains used for transmitting driving power from
one sprocket wheel to another or for carrying elevator buckets thereon, for the
transference of material from one place to another, and is designed to enable the
said chain to be readily put together to any required length upon the spot, and to
afford easy and convenient attachment of elevator buckets or other adjuncts
thereto.
In order that my invention may be the better understood, I now proceed to
describe the same, reference being had to the drawings hereto annexed, and to the
letters and figures marked thereon. Like letters refer to similar parts in the
different figures.
Figure 1. is a general elevation of my improved drive chain with the end link in
section.
Figure 2 is a plan of the said chain.
Figures 6 and 9 are an outside elevation and longitudinal section of one of the
above links fitted with attachment for a bucket.
Figures 10 and 11 are transverse sections, and Figures 12 and 13 are plans of
various modifications of attachments for buckets or other devices to my said drive
chains.
Figure 14 is a transverse section of a link with bucket attached thereto.
Figures 15 and 16 are an elevation and plan respectively of a pair of drive
chains with a carrier trough attached thereto.
Figures 17 and 18 are an alternative balf plan and section respectively of a
bucket with side lugs for convenient attachment to my said drive chains.
My drive or elevator chain consists essentially of a series of independent
rectangular links, each being provided at one end with a hook-coupling A, and at
the other end with a plain stirrup bar B, which the hook-coupling of the adjoining
link firmly holds and embraces. Any of the said links may be provided with side
lugs C, as shown in figures 10, 12, 14, 15 and 16, where it is desired to fix any
buckets or other attachments thereto, or are pierced with slot holes D through the
sides of the bars E to which the bucket or other attachment may be affixed as in
figures 10, 12, 14, 15 and 16. Thus the same drive link may have any form of
bracket or attachment C as desired without altering the link, as any such fastening
will fit into the same slot.
I make my links and bucket attachments of any suitable malleable material,
preferably of malleable cast iron for cheapness of construction, as compared with
го

page_text: wrought iron, which allows me to make the attachments of one link to another,
and of the buckets to their supporting pins secure, when desired, by turning over
the said material with a hammer or other instrument, when in place, as hereinafter.
more fully described.
The links A A jointed together in figures 1 and 2, are shown with the hook A of
the first link open, ready to receive the round bar joint B of the adjoining link,
When the links as constructed in this form are placed together, the hook joint A is
hammered over into the position shown by the other links Figures 1 and 2, to
make the joint secure, the malleable nature of the material permitting this
operation to be easily effected when the links are in place.
:
To the lugs C of the several links, are fixed pins or projections, to one end of
which the buckets G, at Figures 14, 15 and 16, are secured. In Figures 17 and 18
the buckets are made of steel and with malleable iron ends, with forked ends H,
into which the side bar. of the link is placed. The ends of the said forks may be
then hammered over as before described to make the said attachments secure to
the links.
The body of the buckets G Figures 15 and 16, may be conveniently made of
sheet iron or steel, riveted or otherwise attached to the said malleable cast iron
ends H, or attachments C.
The forked attachments of the buckets H H Figures 17 and 18, may be varied
in form, to suit the different angles of the elevator chain, and position of buckets
etc.; the method of attachment thereto being practically the same.
In Figure 11, H H are the forked malleable cast iron attachments, embracing in
this case, the side bars of my links, and which are as before described hammered
over in place to effect their secure attachment. In Figures 6, 10, 12, and 14, the
attachments C, are passed through holes or slots D, in the sides of my aforesaid
links, and are conveniently secured in place by the rivetting over of the ends of
the said bucket attachments, inside the link.
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
"
1st The combination of a series of links with attaching hook and stirrup bar of
a malleable material, with a series of buckets or other appliances of any convenient
form, the attachments thereon being also of a malleable material, and of such a
form, that the joint of the said links with one another and the attachments of the
said buckets to the said links, may be closed by a hammer or other instrument
when in place, substantially as described.
2nd In such an elevator or drive chain the construction of the links of the drive
chain of a malleable material with or without lugs or holes for the attachment
thereto of buckets, and with one end a long-nosed open hook joint, and the other a
plain bar, fitting in a similar hook joint of an adjoining link, the said hook joint
being closed by the hammer for after security, substantially as described.
:
3rd In such an elevator or drive chain, the construction of the buckets with ends
and forked attachments of a malleable material, which may be closed around the
supporting pins or sides of the drive chain, by the hammer when in place,
substantially as described.