Improvements in Rope and Chain Gearing.
Year: 1889

page_text: Date of Application, 13th Mar., 1889
Complete Specification Left, 13th Jan., 1890-Accepted, 15th Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Rope and Chain Gearing.
SYLVANUS EDDINGTON and JOHN EVAN STEEVENSON both of Chelmsford in the
County of Essex, Engineers do hereby declare the nature of this invention to be as
follows:-
Our invention consists in fixing bosses or projections on a wire rope or chain at
intervals. The said bosses or projections working into corresponding recesses in the
driving or driven wheels these bosses or projections may be arranged for carrying
elevator buckets or any other attachments.
Also fixing the said bosses or projections by means of a pin driven through the
rope and metal run into recesses in the said bosses or projections and afterwards
forced in by pressure.
Also making the bosses or projections in two parts and secured to the rope or chain
by bolts either with or without a softer or elastic medium between the bosses or
projections and the rope or chain.
Also for joining the ends of the rope by making one of the bosses or projections in
two parts one of which is attached to each end of the rope and fixed together either by
screws, rivets, bolts or other device.
Dated this 10th 1000
SYLVANUS EDDINGTON.
JOHN EVAN STEEVENSON.
COMPLETE SPECIFICATION.
Improvements in Rope and Chain Gearing.
We SYLVANUS EDDINGTON and JOHN EVAN STEEVENSON both of Chelmsford in
the County of Essex Engineers do hereby declare the nature of this invention and
in what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :- o
Our invention consists in fixing bosses cogs or projections upon wire or metallic
ropes or cables at intervals so that the said bosses cogs or projections engage into
corresponding and convenient recosses formed in the driving or driven wheel or in
pulleys etc.
This arrangement is also applicable to elevators conveyors or dredgers and may
also be applied to the hanling of carriages trucks trolleys &c.
We are aware of the Letters Patent granted to Edward Marshall No. 6063 and
dated 19th December 1882 but we do not propose to use spherical projections nor do
we consider our invention to be applicable to the purposes set forth in the specification
attached to such Letters Patent.
In carrying out our invention we prefer to uso wire ropes and upon these we thread
or attach bosses, cogs or projections which are made with a core or way through them
to admit of the passage of the rope and when such are placed upon the said rope at the
desired intervals they are fixed or fastened as hereafter described.
.
Referring now to the accompanying sheet of drawings and to the figures and letters
of reference thereon :-
Figure 1 is an elevation of a rope shewing bosses or cogs in sections fitted
thereon.
Figure 2 is an elevation of part of a wheel or pulley showing the rope passing over
the same and the bosses or cogs fitting into depressions therein.
Upon the rope A we fix a boss or cog B which we prefer to form and fix as
follows:-The boss or cog B may be in the form of two discs connected by a barrel
Price 6d1

page_text: or cylinder B¹ as shewn in Figure 1 at a point in the barrel we drill or form a hole D.
The underside of the cylinder or harrel is hollowed out between and inside the discs
so as to leave a space E between the rope and this part of the barrel B'. Through
the hole D and the rope A we drive a metal or other pin F until it has passed clear
of the barrel or cylinder when the boss or cog is given a half turn so as to bring the
hole D away from the pin F wo thon pour through the hole molten metal and if
necessary force same by pressure thus consolidating the metal rope hoss and pin in
one piece and securely fixing the boss or cog.
In the periphery of the driving or driven wheel or pulley G we form recesses or
projections H extending below the groove or race 1 in which runs the rope A to
engage with the bosses or cogs fixed thereon.
In order to connect the two ends of a rope we attach to each end thereof a half boss
or cog preferably in the following manner. The half boss or cog J is placed on the
end of the rope A and a pin K driven into the centre thereof so as to spread the said
end molten metal is then poured or forced into all the spaces left so as to form a solid
mass. The opposite end of the rope being treated in a like manner the two ends are
bolted or screwed together in any suitable manner.
For use in elevating hauling and the like, we may use a solid boss or cog L having
its underside shaped to enter the recesses of the wheel or pulley but formed with a
flat top surface to which may be attached a plate or other device for securing the cups
of elevators or scoops of dredgers or various devices for conveying goods or for hauling
carriages trucks and the like.
Various metallic ropes may be used that may be suitable for treating with tin or
metal that may be used for filling the recesses and when a plain steel or iron wire is
used we prefer to tin the parts where the bosses or cogs are to be fixed. If desirable
an endless spun rope may be used and the bosses or cogs may be made in two portions
and bolted or otherwise secured to the rope a suitable liner being interposed. In
applying my invention to chains the boss may be made in two parts and bolted round
chain.
It will be seen that by means of our invention a cheap and durable rope in place of
an expensive bell may be used for various machinery and purposes which cannot slip
in working and is not liable to get out of order or to frequent breakage.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
1. For transmitting power to machinery and for elevating or conveying goods
hauling carriages trucks and the like or for dredging or other analogous purposes the
use or employment of bosses cogs or projecting blocks fixed or fitted at intervals on
to metallic ropes or cables and engaging in recesses on wheels or pulleys sub-
stantially as heroin described.
2. The method of fixing such bosses, cogs, or projections substantially as herein
described.
3: The method of and means for transmitting power to machinery of various kinds
substantially as hereinbofore described.
Dated thin 12th of Lunna….. 1800
POPPLEWELL & Co.,
Agents for the Applicants.