US1596455A - Lint clearing mechanisms for warpers, looms, and similar machines - Google Patents

Description

Aug. 17 1926. 1,596,455

F. E. ROWE, JR., El AL LINT CLEARING MECHANISMS FOR WARPERS, LOOMS, AND SIMILAR MACHINES Filed Oct. 23, 1924 2 Sheets-Sheet 1 INVENTORS I M 5 M,

*2; 21 L -ATTORFEY pended claims.

Patented Aug. 17, 1926.

UNITED STATES I 1,596,455 PATENT' OFFICE.

FRANK E. ROWE, JIL, OF WINCHESTER, AND GEORGE GOODCHILD, OF CHELMSFORD,

MASSACHUSETTS, ASSIGNORS T0 SACO-LOWELL SHOIS, OF BOSTON, MASSACHU- SETTS, A CORIfORATI ON OF MASSACHUSETTS.

LINED-CLEARING MECHANISM FQR WARPERS, LOOMS, AND SIMILAR MACHINES.

Application filed October 23, 1924. Serial No. 745,355.

This invention relates to warpers, looms and other machines designed to handle a multitude of threads, and-especially to machines of this character which include an automatic stop motion under the control of a detector mechanism.

In such machines a series of detectors or drop wires ordinarily is used,.each detector being supported on a thread, and the arrangement is such that if a thread breaks the detector which it has been supporting will drop and. initiate the action of the mechanism that stops the machine. It frequently happens that lint accumulates on the detectors in suflicient quantities to prevent their proper operation, and this is particularly likely to occur'in a high speed warper or any other machine in which the thread is travelling past the detectors at a relatively high speed. The present invention deals with this condition, and it has for, its chief object to devise a simple, inexpensive and reliable means for preventing such accumulations of lint. The invention is applicable not only to machines equipped with an automatic detector-controlled stop motion, but also to machines of the general types above indicated and which include combs through which the threads are guided,

or where the threads run in contact with stationary parts which for any reason must be kept clear of lint.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will .be particularly pointed out in the ap- Referring now to the drawings,

Figure 1 is a perspective view of certain of the parts of a beam warper equipped with a mechanism embodying this invention;

Fig. 2 is a cross-sectional view showing the relationship between the air trunk or conduit and the detectors or drop wires; and

Fig. 3 is a perspective view on a larger scale showing certain of the parts of the automatic stop motion and also showing a modified form of the invention.

In the machine shown 2 indicates the beam, 3 the front comb, and 4 the rear comb of a beam warper of a well known commercial form. In using this machine the strands I or bobbins supported on a creel, the threadspassing through the rear comb 4, over and under the usual guiding and take-up rolls,"

thence through the front comb 3 and over the roll 5 to the beam 2. Just before the threads reach the front comb 3 they pass under detectors or drop wires 6.

The stop motion shown is of the form known commercially as the Crompton & Knowles stop motion and operates in general like the mechanism shown in the Regan Re-issue Patent No. 14,829. Reference may be made to this patent for a detailed description of the construction and operation of this type of stop motion. This mechanism is under the control of a detector mechanism, one detector being mounted on each strand of thread. Each detector 6 consists of a thin metal plate having upper and lower slots 7 and 8, respectively, punched therethrough. Normally the detector rides on a thread indicated at S, Fig. 2. The entire series of detectors is supported between two rigid bars 99, and when athread breaks,

its detector drops until the upper reducedend of the slot 7 engages the oscillating bar 10. In this position the detector prevents further oscillation of the bar and thus trips in the mechanism which stops the machine. Referring more particularly to Fig. 3 it will be observed that the bar 10 is normally oscillated by connections with, a rocking lever 12 fulcrumed on a stud 13 and driven arm 16 of a bell crank lever that is'secured to the end of the bar 10. The other arm '17 adjustably secured to a latch 20 which is pivoted at 21 to a rocker arm 22. This arm is fulcrumed on the stud 13. As the lever 12 oscillates and thus operates through the connections just described to rock the bar 10, the pin 18 operates through the part 10 to swing the point 23 of the latch 20 out of the path of travel of the shoulder 24 on the lever 12. When the detector 6 drops, however, as above described, and prevents the bar 10 from oscillating, the arm 17 is also held against oscillation, and consequently when the lever 12 swings upwardly and the shoulder 24 moves toward the right, Fig. 3,

Aug 17 1926. 1,596,455

F. E. RQVVE,.JR EI'AL LINT CLEARIN MECHANISMS FOR WARPERS, LOOMS, AND SIMILAR MACHINES Filed 001;. 25, 1924 2 Sheets-Sheet 2 2 ATTORNEY INVENTO M" means holes through the Wall thereof to direct currents of air across said threads, and means for moving said conduit to traverse said currents of air over the threads.

6. In a machine having means for supporting a multitude of threads, a conduit located transversely of said threads and adjacent to them, a blower for forcing air through said conduit, said conduit having holes through the wall thereof to direct air across said threads, and means for oscillating said conduit about an axis extending longitudinally thereof.

7. In a machine havingmeans for supporting a multitude of moving threads, the

combination of relatively stationary devices engaging said threads, a conduit extending across said threads and located adjacent to them, a blower for forcing air through said conduit, and means for oscillating said conduit about an axis extending longitudinally thereof, said conduit having holes through the wall thereof to direct air across said threads in the neighborhood of said devices.

8. In a machine having means for supporting a multitude of threads and an automatic stop motion including a series of detectors mounted on the respective threads, the combination of a conduit extending across said threads adjacent to said detectors, a stationary blower for forcing air through said conduit, said conduit having holes through the wall thereof to direct air across said threads in the neighborhood of said detectors, and connections between said conduit and said stop motion for oscillating said conduit about an axis extending longitudinally thereof.

In testimony whereof we have signed our names to this specification.

FRANK E. ROWE, JR. GEORGE GOODCHILD.

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