US2196431A - Stop means for knitting machines - Google Patents

Description

April 1 J. D. TEMPLETON 2.196331 STOP MEANS FOR KNITTING MACHINES Filed Jan. 15,-1938 2 Sheets-Sheet 1 In ve ritor By @Maaiizm Attorneys April 9, 1940- J. D. TEMPLETON 2,196.

' STOP MEANS FOR KNITTING MACHINES Filed Jan. 15, 1938 2 Sheets-Shet 2 Inventor A iiorneys Patented Apr. 9, 1940 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to new and useful improvements in automatic stop means adapted for use in conjunction with knitting machines.

.The principal object of the present invention 5 is to provide automatic stop means for knitting machines which will be positive acting and not susceptible to the ready development of defects.

Another important object of the invention is to provide stop means for knitting machines which can be installed readily on a; conventional knitting machine without altering the mechanism of the machine.

These and'various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:- 1

Figure 1 represents a fragmentary perspective view of a knitting machine showing the stop mechanism installed thereon.

20 Figure 2 is a vertical sectional view through the stop pin mount. v

Figure 3 is a perspective view with a portion broken away disclosing the stop pin bracket.

Figure 4 is a perspective view ofthe retaining 25 collar. 1

Figure 5 is a perspective view of the plunger. Figure 6 is a perspective view of the spring. Figure 7 is a perspective view of the stop pin. Figure 8 is a perspective view of the adjusting 30 arm.

Referring to the drawings wherein like nu-' merals designate like parts, it can be seen in Figure 1 that numeral 5 represents the usual dial portion of a knitting machine, of a type disclosed 35 in the Scott and Williams Patent No. 1,641,101 while numeral 6 denotes the usual cylinder cam ring which rotates in unison with the dial 5. The horizontal needles are denoted by numeral I. The stop mechanism is generally referred to by 40 numeral't and is located at the point where the needles draw in in the operation of knitting. The stop mechanism is intended to stop the machine when thread accumulates at the point where the needles draw in. An inverted L- 45 shaped bracket 9 is included in the stop mechanism and has the laterally extending portion I formed with the bore I for containing the coiled compressible spring I2. A smaller bore I3 extends through the portion Ill and through the 50 upper portion of the bracket 9 for slidably receiving the plunger l4. One endof this plunger I4 is threaded as at I and provided with a transverse opening I6 through which the stop pin i1 is slidably disposed. A nut I8 is feedable 65 on the threaded portion I5 and against the pin the machine screw 27.

ll to fix the pin in the proper adjusted position with respect to the plunger I4. The lower portionof the pin ,I'! is pointed as denoted by nu-' meral I9. r

The nut I8 abuts the upper portion of the 5 bracket 9 and onthe opposite end of the plunger I4 is located the collar 20 having the set screw 2| which is feedable against the plunger. I4. The spring I2 is located on the plunger I 4 and interposed between the collar 20 and the inner end of the bore II.

The lower portion of the bracket 9 is reduced as at 22 to define a shoulder 23 for rest upon the edge portion of the dial 5. This reduced portion 22 is provided with the slot 24 for receiving w the machine screw 25 which is driven into the side of the dial 5 as illustrated in Figure 1.

The intermediate portion of the bracket 9 is provided with the threaded bore 26 for receiving This machine screw is 2 disposed through the slot 28 of the arm 29 which is provided with the laterally disposed finger 30 bearing against the pin I1.

Numeral 3| denotes the stop arm extending laterally from the upper portion of the post 32 25 which is suitably secured as at 33 to the side of the cylinder 6. Stop arm 3| operates the conventional stop mechanism on knitting machines of the type illustrated. When thread accumulates at the point where the needles I are drawn 0 inwardly, this causes the stop pin I! to bear against the stop arm 3| a d thus operates the stopping mechanism.

Thus it can be seen, that in the event thread accumulates at the point where the needles draw 6 in, the stop means will be acted upon to'result in the stopping of the machine.

While the foregoing specification sets forth the invention in specific terms, it is to be understood 40 that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. In combination with a knitting machine including a stationary needle cylinder and a rotary dial cap, a pin rockably mounted on the dial cap extending vertically and laterally outwardly thereof, said pin bein normally free of the needles of the machine during normal operation thereof and arranged for engagement by a defectively functioning needle and a trip arm mounted for movement in synchronism with the pin and in the path of the swinging movement of said pin for actuation ereby.

2. In combination with a knitting machine including a stationary needle cylinder and a rotary dial cap, a pin rockably mounted on the dial cap extending vertically and laterally outwardly thereof, said pin being normally free of the needles of the machine during normal operation thereof and arranged for engagement by a defectively functioning needle, a trip arm mounted for movement in synchronism with the pin and in the path of the swinging movement of said pin for actuation thereby and adjusting means for said pin.

3. In combination with a knitting machine including a stationary needle cylinder and a rotary dial cap, a pin rockably mounted on the dial cap extending vertically and laterally outwardly thereof, said pin being normally free of the needles of the machine during normal operation thereof and arranged for engagement by a defectively functioning needle, a trip arm mounted for movement in synchronism with the pin and in the path of the swinging movement of said pin for actuation thereby and abracket for adjustably supporting said pin.

4. In combination with a knitting machine including a stationary needle cylinder and a rotary dial cap, a pin rockably mounted on the dial cap extending vertically and laterally outwardly thereof, said pin being normally free of the needles of the machine during normal operation thereof and arranged for engagement by a defectively functioning needle, a trip arm mounted for movement in synchronism with the pin and in the path of the swinging movement of said pin for actuation thereby, a bracket for adjustably supporting said pin, said bracket consisting of a standard having a hollow portion, a plunger extending through the hollow portion, a spring in said hollow portion acting on the plunger, one end of the plunger being threaded, said plunger being provided with an opening through the threaded portion thereof for receiving the pin and a nut feedable on the threaded portion of the plunger and against the pin to retain the pin on the plunger.

JOHN D. TEMPLETON.

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