US 274947 A
Description (OCR text may contain errors)
(No Mod'el.)' 2 Sheets-Sheet 1. J. P. KIDDER.
KNITTING MACHINE. I Patented Apr.3, 1883.
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(No Model.) J P. KIDDER. 2 sheet- -sheet 2*.
' KNITTING MAOHINEQ No. 274,947. Patented Apr. 3, 1883.: S
WITNESSES: INVENTO'R n. PUERS, PMlo-Liihognplwv. Washington. a. c.
Nrreo "Tiaras ATENT Grates.
JEPHTHER 'P. KIDDER, OF PHILMONT, ASSIGNOR ()F ON EHALF TO GEO. WV.
l MOSELY, OF HUDSON, NEW YORK.
SPECIFICATION formingpart of Letters Patent No. 274,947, dated April 3, 1883,
I Application filed January 30, 1882. (No model.)
. Figure l is a side elevation of my improved knitting-machine; Fig. 2, a perspective view ot'a portion thereof; Fig. 3, a detail view of a modification of the 'cam'wheel; Fig. 4, a side view of Fig. 3 Fig. 5, a detaii enlarged view )5 of the cam-wheel shown in Figs. 1 and2; Fig.
6, aside view of the cam-wheel, showing one of the cams; and Figs. 7, 8, and 9 are diagram views of the dial-moving cams in different positions in which they are moved by the camwheel and cam-lever.
My invention relates to that class of circular-knitting machines of which the Patent No. 239,169, to W. D. Huse, March 22,1881, shows a specimen; and the novelty consists in the 2 construction and arrangement of parts, as will be more fully hereinafter set forth, and specifically pointed out in the claims.
The accompanying drawings represent some of the essential elements of a circular-knitting 0 machine in which two sets of needles are employed, one being a set of vertical needles mounted in a cylinder, A, and the other a set of horizontal needles mounted radially in a dial-plate, B, both sets of needles being driven,
in ainanner well understood, by means of a ring, yoke 1), and cam-plate E, and cams a b c, as fully shown and explained in the Bose patent, and it is therefore unnecessary to further describe them.
' 4o Attached to the ring 0 is the cain-wheel H.
a 4 5 corresponding part in the Huse patent, and is used for operating the lever that throws the dial-needles out of action in the same way.
At F is the base of the machine, through which rises the movable stop G, which is op erated and operates in essentially the same 0 way as in the Base machine.
' At 1 is a stop firmly and fixedly attached to the base F, and is so arranged and proportioned that it'will not afi'ect the small teeth of the cam-wheel H, which will readily pass by 5 it without touching it, but will act on the enlarged teeth when they are brought into posit-ion.
Attached to a standard, J, rising from the ring 0 is a spring, K, which, pressing on the backof the cam-lever L, forces the dial-needles instantly into action. Instead of the Hat spring shown, aspiral or some other form of spring may be connected with the lever.
When the machine is in operation the war \YiJBll passes clear of both the movable and tixedstops until the formeris raised,when one of the small teeth comes. in contact with the stop and turns the cam-wheel one tooth, or onesixth of a revolution, which gives the camdc- 7o ver one-half ofits motion in one direction and causes the next large tooth to assume the position shown in Fig. 5 when it comes in contact with the fixed stop I, and the wheel is moved another tooth, thus giving said wheel a movement equal to the space of two teeth in rapid succession, instead of requiringa revolution for the movement of each tooth. By this means the cam-lever hasits entire motion given to it in one direction, while the ring 0 is moved but a short portion of its circumference, and thus each diaLneedle is suddenly and entirely thrown out of action, so that'by this means only one row of stitches is formed onthehorizontalneedles,whilethreearet'ormed on the vertical needles, and when the continuedo'peration ofthe movable stop G has turned the cam-wheel H one more tooth, makingonehalfof a revolution, the spring-K, operating on the cam-lever L, throws the dial-needles in-- o stantly into action, when the loops that have been held on them during the time that they have been out ofoperation are knitted into the loops formed from the yarn now laid into said horizontal needles, by which means a close 5 welt or binding is formed,which will be found to be particularly adapted for use on the tops of hoseor the wristbands of shirts, bottoms of drawers, 85c.
-As a movable stop is only required to move the cam-wheel H a comparatively short distance (one tooth) when throwing the needles into action, it will be seen that itis necessary to provide means for moving it double that distance, or two teeth, when it is desired to throw the needles entirely out of action at one movement of the machine.
In order that the operation of the cams may be more clearly understood, I have shown them, in Figs. 7, S, and 9,inthe various positionsin which they are moved by the cam-wheel and thelever-connections. When the end of the lever L rests at the lowest portion of the camwheel at 1, Fig. 6, the dial-cams b c are in the position shown in Fig. 7; but when the camwheel has been moved one tooth by the movable stop the lever rests at 2 and moves the dial-cams b c to the position shown in Fig. 8, which, however, is only a temporary position, as the continued rotation of the cam-wheel, caused by the action of the stationary stop L upon the lengthened or widened tooth of the cam-wheel, causes the further movement of the same, so as to bring the end of the lever to the point 3 and move the dial-cams I) c to the limit of their inward movement, as shown in Fig. 9. At this point the dial-needles are so far inward that they will take no thread in the rotation of the machine, and they remain in this position until the cam-wheel is moved a single tooth. by the movable stop, so that the spring K will forcibly throw the cams b c and the dial-needles outward into the position from which they started to again take thread and form stitches in the regular manner.
From the above it will be seen that in my machine the action of the movable stop G and the fixed stop I against the cam-wheel moves the dial-needles entirely out of action at a single revolution of the machine, and the spring K instantly and forcibly throws them outagain when the cam-wheelis again turned, whereas in the machines heretofore used the cams are moved into the position shown in Fig. 8, in one revolution of the machine, at which they take the thread butdo notcasttheloops they already have over their latches, and it is necessary to makea second revolution of the machine in order to cause the cams to assume the position shown in Fig. 9, in which position of the cams the needles can neither take thread nor cast off loops.
1n the former machines the outward movement of the cams when they are again released is not instantaneous, but is gradual, and is not complete until about ten stitches have been formed, this'being caused by' rely ing on the action of the needles in the movement of the machine to operate said cams.
I do not wish to limit myself to the exact number'of teeth shown in the cam-wheel, as it might be made with three small teeth and one larger one, or with three or four large teeth, or even more, and with corresponding sets of small teeth, in which case the number of cams on its side should be made to correspond with the number of large teeth.
What 1 claim as new is-- 1. The combination, with the cams for moving the dialneedles, of the cam-wheel H, provided with a cam or cams for operating the dial-cams, and with peripheral teeth of different sizes, and means, substantially as described, l'or differentially operating the camwheel, as set forth.
2. The combination, with the dial-cams for moving dial-needles, of the cam-wheel H, provided with a cam or cams for moving said dialcams, and with large and small teeth, the movable stop G, for operating upon the small teeth of the cam-wheel, andthefixed stop I, for operating upon the large teeth, substantially as described.
3. Thecombination, with aknitting-machine provided with vertical and horizontal needles, of a cam-wheel provided with small and enlarged teeth, suitable connections between said wheel and the movable dial-needle cams, and movable and fixed stops constructed to operate on the wheel, substantially as described.
at. The combination, with the dial-cams, of a cam-wheel for moving the dial-cams inward, and a spring for forcibly and quickly moving the said dial-cams outward, substantially as described.
In testimony whereof I aifix my signature in presence of three witnesses.
JEP HTHER P. KIDDER.
H. P. HORTON, GEORGE W. MOSELY, EDWARD 0. WHEELER.