Improvements in and relating to Knitting Machines of the "Lamb" Class.
Year: 1892

page_text: Date of Application, 12th Apr., 1892
Complete Specification Left, 11th Jan., 1893-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Knitting Machines of the
"Lamb" Class.
I, GODFREY STIBBE, of 25 Jamaica Street, Glasgow, Lanarkshire, Manu-
facturer, do hereby declare the nature of my invention to be as follows:-
The object of this invention is to improve the reciprocating carriage and the
guiding of same in knitting machines of the Lamb class, and particularly to avoid
the tendency in such machines to a twisting movement of the carriage, which is
caused by the great distance between the points of attack and resistance and the
oblique position of the driving rod which reciprocates the carriage. The improve-
ment is also calculated to considerably lighten the carriage, and render the machine
more compact. In machines of the old style the carriage slides in grooves formed
in parallel bars, one on each side of it, and is further guided at its one end upon a
central round or prismatic rod or bar upon which it slides by means of a ring or
boss encircling the said rod. In order that the carriage may run true, it is necessary
that the three guide bars should be perfectly parallel to each other, but the oblique
position of the driving rod of the machine always tends to give the carriage a
twisted motion and to cause it to go heavily.
By my improvements the round or prismatic central guide rod is dispensed with,
and in its place I provide an equally sure and sufficiently long bearing and guiding
organ for the carriage by lengthening the front side guide bar of the machine, a
considerable distance beyond the opposite bar, upon which a lengthened bearing
arm of the carriage reciprocates. This lengthened arm or bearing nearly encircles
the extended side bar and is attached to the front plate of the carriage, or can be
made in a solid piece with the same. The carriage itself consists only of the front
and back cam boxes solidly bound together by means of central saddle-shaped bow
frames at each end. I further apply to the slide arm an adjustable organ which
enters into the groove of the extended front guide bar where the actuating rod is
attached, and which can be tighened by means of screws, and serves to recover any
play of the carriage and to compensate for ultimate wear.
Dah 111 A
+1
1000
COMPLETE SPECIFICATION.
Improvements in and relating to Knitting Machines of the
"Lamb Class.
"
I, GODFREY STIBBE, of 25 Jamaica Street, Glasgow, Lanarkshire, Manu-
facturer, do hereby declare the nature of my invention, and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement in writing, that is to say :-
"The object of this invention is to improve the reciprocating carriage and the
guiding of same in knitting machines of the "Lamb" class, and particularly to
avoid the tendency in such machines to a twisting movement of the carriage, which
is caused by the great distance between the points of attack and resistance and the
oblique position of the driving rod which reciprocates the carriage. The improve-
ment is also calculated to considerably lighten the carriage, and render the machine
more compact. In machines of the old style the carriage slides in grooves formed
in parallel bars, one on each side of it, and is further guided at its one end upon
a central round or prismatic rod or bar upon which it slides by means of a ring or
l'aine /1

page_text: boss encircleing the said rod. In order that the carriage may run true, it is necessary
that the three guide bars should be perfectly parallel to each other, but the oblique
position of the driving rod of the machine always tends to give the carriage a
twisted motion and to cause it to go heavily.
By my improvements the round or prismatic central guide rod is dispensed with,
and in its place I provide an equally sure and sufficiently long bearing and guiding
organ for the carriage by lengthening the front side guide bar of the machine, a
considerable distance beyond the opposite bar, upon which a lengthened bearing
arm of the carriage reciprocates. This lengthened arm or bearing nearly encirclės
the extended side bar and is attached to the front plate of the carriage, or can
be made in a solid piece with the same. The carriage itself consists only of the
front and back cam boxes solidly bound together by means of central saddle-
shaped bow frames at each end. I further apply to the slide arm an adjustable
organ which enters into the groove of the oxtended front guide. bar where the
actuating rod is attached, and which can be tightened by means of screws, and
serve to recover any play of the carriage and to compensate for ultimate wear.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood I have hereunto
appended an explanatory sheet of drawings in which
Figure 1 represents the knitting machine in perspective view with the improve-
ments applied, and
Figure 2 is an end view of the machine in the direction of the arrow in
Figure 1.
Referring to these drawings:-The improvements consist in the accurate
guiding of the carriage of a knitting machine upon two slide bars M, N, only, and
in improved arrangements serving to recover the play that is produced by wear.
The carriage is composed only of the plates K, K', united by the stirrup bars L,
in such a manner as to form one solid piece. The said plates K K¹ slide in the
grooves of the slide bars M and N. In order to give to the carriage a sufficiently
long guiding to prevent its getting play upon the slide bars M N, the plate K
carries a lengthened bearing which receives at P the motion of the connecting
rod P' driven by the hand lever P'; and the said lengthened bearing O encloses
the slide bar M completely as shown in Figure II in such a manner as to be
guided upon it in every direction the bars M being extended beyond the length of
the parallel bar N as shown. The points of contact O, O, are provided with
small hardened plates to resist wear. In order to compensate for the play pro-
duced by wear between the slide bar M, and the lengthened bearing O, a small
organ or washer Q, Figure II, is provided which penetrates into the groove of the
slide bar M and which can be tightened by means of screws R. The lengthened
bearing itself can be fixed to the plates K by means of screws as shown in
Figure I or it can be cast in a single piece with the carriage. It will be seen that
the provision made for guiding the carriage supersede the use of a third slide
bar or rod as ordinarily used in knitting machines, whilst preserving nevertheless
a long guiding organ M for the carriage, and above all, lightening its weight at the
same time.
Moreover the point of attack P being much nearer to the point of
resistance M than in ordinary mechines there is no twist imparted to the carriage
the movement of which is therefore made lighter.
Having now described and ascertained the nature of my invention I specially
declare that I do not limit myself in its application to the particular forms
dimensions, and proportions indicated in the accompanying drawings but reserve to
myself the right to vary the same as circumstances may require, but what I
claim is ;-
First. In knitting machines on the "Lamb" principle the application to the
carriage of such machines reciprocating and guided upon two slide-bars, of a
lengthened bearing, which receives the movement of the connecting rod and is
guided upon the same extended slice-bar with the carriage itself, substantially

page_text: as herein described and by way of application shown in the accompanying
drawings.
Second. In knitting machines on the "Lamb" principle the application in that
part of the lengthened bearing to which the connecting rod is attached of an organ
or washer made adjustable by means of screws for the purpose of compensating
for any play produced between the slide-bar and said lengthened bearing,
substantially as herein described in reference to and shown in the accompanying
drawings.
.
2 T
1000