Year: 1888

page_text: Date of Application, 19th Jan, 1888
Specification Accepted, 24th Feb., 1888
[Communicated from abroad by GUSTAV FRIEDRICH GROSSER, of Markersdorf,
near Burgstadt, in the Kingdom of Saxony and Empire of Germany,
Manufacturer.]
I, LORENTZ ALBERT GROTH, of No. 3 Tokenhouse Buildings in the City of London,
Civil Engineer, 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 :-
These improvements relate more particularly to arrangements whereby hose
material of any width can be made on the "Lamb" machine without using stoppers
for regulating the cam on pulling the lever. In order to make hose material in the
"Lamb" machine, it is necessary to work alternately with the hinder and front
disposition of needles (Fonteur) and for this purpose the middle lifter portions of the
front and hinder cams must be alternately thrown out of action. This has been
effected by means of stoppers fixed at the left and right sides of the machine, and
against which the middle parts of the cams stopped.
By my present invention no stoppers are required, and furthermore the cams are
regulated automatically. The improvements will be more clearly understood by
referring to the accompanying drawings. The principal parts of the machine remain
as before, but the cams are modified, more particularly so in their middle parts, the
cam or triangle a (see Figure 1) has one angle b detached, the point o being in so
high a position that the feet of the worked-off needles will always come to lie beneath
the same The part a is now made in the lock or guide d and is kept in its lowest
position by means of a small spring f.
α,
The operation of the needles and the cams is as follows:-Supposing that the work
is being carried on from right to left, then the needles, on the entire surface of the
part
will slide and work as usual; but in the reversed direction, the first of the
working needles will stop against a point (determined by the position of the side
lever) on the surface p. c. of the part a, and the part a will now be pushed upwards,
in the lock or guide à, by the friction of the said needle on its surface p. c, into so

page_text: high a position that it can slide over the feet of the needles (fig. 4). On the last
needle passing, the part a is at once restored to its normal position by means of the
spring f.
This middle part will thus, in working from right to left, act upon the feet of the
needles, but whilst working in the opposite direction, they will remain at rest.
Fig. 2 shews the arrangement of two such cams on the "Lamb" machine, working
in the direction of the arrow, the front cam being in the working position, and the
hinder one at rest. When working in the reversed direction the action of the cams
will also be reversed, namely, the hinder one will work, and the front one be at rest.
Fig. 3 shews the cam at the moment when the first needle reaches the surface p. c,
of the part a, in order to raise it.
Fig. 4 shews the cam in its resting position being retained therein by the feet of
the needles sliding over it.
Fig. 5 shews the cam in its working position, that is to say, the reverse position to
that shewn in Figs. 3 and 4.
The detached portion
is movable in the cam plate, whereby the part a can be
brought back to the middle part, and these parts can then be worked as by the old
machines.
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
--
A "Lamb" Knitting machine in which (for the purpose of producing hose
materials, for example), the cams are automatically regulated, without the employment
of stoppers, whereby the necessity of further movement of the carriage is avoided,
the work being passed from one needle-row to the other, substantially as hereinbefore
described, and illustrated in the Drawings hereto annexed.
Dated this 10th dox of Tanu 1888
LORENTZ ALBERT GROTH,
Agent for the Applicant.