US2539137A

US2539137A - Knitting machine guard

Info

Publication number: US2539137A
Application number: US80518A
Authority: US
Inventors: Laurence E Hunold
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-03-09
Filing date: 1949-03-09
Publication date: 1951-01-23
Anticipated expiration: 1968-01-23

Description

Jano 23, i951 L EQHUNOLD 2,539,137

KNITTING MACHINE GUARD Filed March 9, 1949 JNVENTOR.

LAURENCE E, HUNOLD MMM Patented Jan. 23, 1951 omiso stares OFFCE My invention relates to knitting machine guards and more particularly to a transparent An object of my invention is to provide a protective guard for enclosing the cam actuated knitting needles.

Another obiect of my invention is to provide a guard which operates as a guide for the yarn While being placed in contact with the knitting' needles, during their operation.

Still another object of invention is to provide a device that rotates with the cam. thereby guiding the yarn around the stationary needle support.

A further object of my invention. to provide a guard that is constructed oi a transparent material so that the knitting operation may be observed by the operator.

It is imperative in the operation of a knitting machine such as is described in my ccpending application for Letters Patent, Serial Number 14,192 dated March l1, 1948 and now abandoned, that the operator observed the operation of the knitting needles, and is the object of my invention to provide a transparent guard which acts as a guide for the yarn being manipulated by the knitting needle mechanism. The device is simple in construction, economical easy to manufacture yet serviceable for the purpose for which it is intended.

Other and further objects of rnv invention. will become more apparent as the description proceeds when taken in conjunction with the drawings in which:

Figure l is a perspective View of the device assembled onto, and. forming part of, a knitting machine.

Figure 2 is a perspective outer view of the combination guard and specified and claimed herein.

Figure 3 is a cross-sectional viewof the device as shown in Figure 2.

Figure 4 is a top view of the device.

Figure 5 is a bottom view of the device.

Figure 6 is a fragmentary perspective view of a portion of the knitting machine, showing the needle arrangement, and the guard in phantom mounted lonto the revolving carri Steeve, and

Figure 7 is a fragmentary cross-sectional top View of the guard mounted into position on the knitting machine.

Similar characters of reference indicate corresponding parts throughout the several views and referring now to the same, the character l@ 5 Claims. (Si. 66-8) shows a guard of conical contourv constructed of transparent material, closed at its upper end and open at its lov/,er end. The guard M3 is of a diameter equal to the outer peripheral surface of the revolving cam shown as ii, which forms a part or the knitting machine and which revolves around a guide or cylinder i2 supporting a plurality of knitting lles shown as i3. The cam i i has an outwardly projecting pin l which is arranged to engage an'open slot I5 at the bottom of the guard iii, to retain the guard in position onto the cam ii, and an angularly disposed aperture it within the side wall of the guard I8, permits the yarn shown as i l to enter the needle enclosure formed by the guard ID. The inner face of the guard it* is shown provided with an inwardly extending ledge Iii which prevents the needle latch from closing before the yarn engages the hook of the needle. This ledge i0 is shown below the aperture i6.

As the cam il is revolved by means of the crank i8 through the gear arrangements shown as I9 supported by the base 2s of the knitting machine, it will place the yarn I 'i in engagement withk the needles i 3, some of which are in a raised position during the opera-tion. and in this raised position they receive the yarn placed against their outer face due to the revolving of the guard iii. Obviously the yarn H is supported by the loops 2i and 2i as it is conveyed from the spool 22 into and through the aperture 1S in the side wall of the guard number i i3.

It is manifest to anyone amiliar with the art, iat knitting needes are guided by a cam slot which raises and lowers them in their manipulation of the yarn knitted. The device described claimed herein prcvides protection for the needles as Well as a guide for the yarn in placing it in Contact .vith the needles. The guard being transparent, also provides visibility for the operator to observe the operation, and it is therefore a distinct improvement over anything thus far portrayed in the prior art, and while have shown a particular shape and contour of the device, I am fully cognizantof the fact that the shape and contour or the device may be altered without affecting' its operativeness and reserve the right to make such changes without departing from the spirit of my invention or the scope of the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent in the United States is:

l. A device of the character described to be used in combination with a knitting machine having a cam member revolving around a stationary needle guide, said device consisting of a body forming an enclosure open at its lower end and closed at its upper end, the lower end of said body engaging the revolving cam member, said body member provided with an aperture near its upper end, said aperture providing a means of admitting yarn into said enclosure for contact with the needles of said machine during its revolving action.

2. A device of the character described to be used in combination with a knitting machine comprising a plurality of needles guided within a stationary needle support, and a revolvingr needle cam, said device consisting of a conical body forming an enclosure open at its lower end for engagement with said revolving cam thereby covering said needles, said body provided with an aperture acting as a yarn guide through its side wall near the upper end thereof.

3. A device of the character described to be used in combination with a knitting machine comprising a plurality of needles guided by a stationary needle support, and a revolving needle cam revolving around said needle support, said'device consisting of a, hollow conical enclosure of transparent material open at its lower end for engagement with the outer peripheral surface of said revolving needle cam, an angularly disposed aperture through the side wall of said enclosure to permit engagement of the yarn being manipulated by said knitting needles, said aperture being of a height to place said yarn in engagement with said needles during-the revolving of said cam.

4. A device of the character described to be used in combination with a knitting machine having a cam member revolving around a stationary cylinder acting as a needle guide, said device consisting of a body forming an enclosure open at its lower end, the lower end of said body engaging the revolving cam member on said knitting machine, the wall of said body member provided with an aperture near its upper end, said aperture providing a means for admitting yarn into said enclosure for contact with the needles of said machine, said body having an inwardly projecting ledge around its inner peripheral surface below the aperture admitting said yarn 5. A device of the character described to be used in combination with a knitting machine equipped with a plurality of needles guided within a cylindrical stationary needle support, and a revolving needle cam, said device comprising a conical body forming an enclosure open at its lower end for engagement with the revolving cam, thereby enclosing said needles, said body provided with an inwardly projecting ledge around its inner face, and an aperture through the side wall of said body, said aperture disposed above said ledge.

LAURENCE E. HUNOLD.

REFERENCES CITED UNITED STATES PAILNIS Name Date Simonson July 24, 1882 Number