US1655882A - Ghtjse tts - Google Patents

Description

Jan. 10, 1928. 1,655,882

A. c. \IARNUM ET AL THREAD CLAMPING MECHANISM FOR LOOMS Filed May a. 1926 2 sheets-sheet 1 1111 111/111, e- 'IIIIIIIIIII IIII'IIIII ,ATi/a GTWr-num Dame-s .Zwvze s1- Fahiaal;

Jan. 10, 1928. 1,655,882

7 A. c. VARNUM ET AL THREAD CLAMPING MECHANISM FOR LOOMS Filed May 6. 1926 2 Sheets-Sheet 2 'IIIII/l.

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Aid-THUR G. VARN'UM .tll llll JAIVIEQ THREAD- GLAIMZFIING MIElCllF-lldltlfilld LFQIEt 1001015 Application :tilorl May 6, 1926. aerial No. 107,207.

This invention relates to a threadclam 3- ing; mechanism for looms and constitutes improvements over the device shown in our Patent No. lgttitlfltll), patented January 8, 192%. The principal object of this invention is to provide a self-aligning construc tion for a thread clamping device of the nature set forth in said patent so as to provide tor the automatic mljustment ot the roller with respect to the thread or other surface against which it comes into contact; and also to provide for applying the invention to other types of thread clamping mechanism than the one shown in said patent.

Reference is to be had to the accompany ingr drawings in which l ig. 1 is a transverse sectional. view of a. part ot a loom showing one ay in which the present improvements can be applied thereto; a

2 is a view in side elevation on onlarged scale of the thread clan'ipinp; mechanism by itself shown inopen position;

Fig. is a plan of the parts shown in Fig. 2;

l igg. 4t is a view similar to Fig. 2 showing the opposite or cutting position of the parts' 5 is an enlarged sectional view of one term ot the seltaligning roller;

b ip; ii is a. view similar to liig. 1 showing the application of the invention to a differout type of automatic filling replenishing;

looms;

r. l scale ol the term in Fig. 6; Fig.1; 8 is a similar view showing the part in a cutting position;

Fig. 9 is a bottom plan of the shine; and

10 is a sectional view showing one :torm of seltalig'ninp; roller.

lleterring :lirst to Figs. 1 to 5, we have shown the invention as applied to a loom having the usual. lay 11 carrying the shuttle hon 12 oscillated in the usual manner. The magazine 13 is shown. as co-operating with the wei't replenishing mechanism operated by a reel; shaft 14L The details oi this mechanism need not be described but a shuttle teeler member 15 is pivotallv mounted at lo and adapted to be maintained normally in operative position with respect to the lay by means of a spring 17. This spring acts through an arm 18 constitutinu a part of the :t'eeler member 15. A level- 19 lined on the rock shaft 14 is arranged to swing the itecler member 15 in the usual manner.

The upper end of the feeler 15 is provided with a Vshaped notch 20 to receive the filling thread when the feeler is moved into operative position with respect to the shuttle box. A fixed blade 21 is secured to the i'eeler 15 at the lower edge of the notch and a pivoted cutting blade 22 is mounted. to swing; on a stud 23 mounted on the feeler member. The blade 22 is provided with heel portion 24- adapted to be engaged by the lay in the usual. manner. This swings the blade 22 to part the thread between the cooperating; edges of the blades 21 and 22. The blade can be opened by means of its pin 25 as is well understood in this art. These parts of the loom areold and well. known and described in our above mentioned patent.

A plate 28 is held stationary by a fork 26 and pin 27, the heel portion 24: having a hole 27 :tor receiving}; the pin 27 and allowing; the blade 22 to swing. The opposite edges of the hole constitute limiting stops.

The heel portion 24; has an offset 31. and having in said. offset a roller 32. This roller as shown in 5 is of a hollow cylindrical ilorni mounted on a convex shaft 33 which is held at its ends in two openings in the otl'set 3ft. lit can be put in from one end and when the roller on it the roller will be free to swing slightly on account of irregw larities in the position of the thread. or other parts. This roller co-operates with the stationary plate 2% fixed on the stud 23 and held in stationary position by the pin 27. A spring 29 under the head of the stud 23 holds this plate and all the parts yieldingly together,

In operation, the parts being open as shown in Fig. 2,.the thread is passed through the notch 20 and over a horizontal projection on the end of the plate 28. The move ment of the pin upwardly by the mechanism of the loom as described in said patent results in swinging the blade 22, cutting the described and it will be understood that this is the-application of this invention to a different type of loom. In this case, the shuttle feeler member 35 operates in a well known way and has a notch similar to the notch 20. It also has a stationary blade 41 spaced from the notch40 and a stationary plate 36 provided with an offset and roller 32 like the roller above described but mounted on a barrel-shaped support 51 so as to be capable of yielding as in the other case. Between the fixedblade island the roller is a swinging blade42'cooperating with both. A spring 39 holds the parts in contact. Here the threadis cut between the stationary blade -Ill and swinging blade 42 as in the other case and the thread is held between the roller 32 and the other sideof the oscillating blade as above described.

This provides an automatic filling replenishing loom with means for clamping the thread comprising a self-aligning roller on a' pin or bushing so that the roller surface will adjust itself to the blade, plate or other flatsurfaee with which it comes in contact.

Although we have illustrated and described only two forms of the invention we are aware of the fact that other modifica- 11 tions can be made therein by any person skilled in the art to adapt it to other looms Without'departing from the scope of the invention' as expressed in the claims.

pair of blades adapted to have a relative movement, and a surface of revolution movable with one of them as a whole and mounted to tilt on its axis to accommodate itself to any irregularities.

2. In an automatic filling replei'iishing loom, the combination with a thread parler. of a pair of blades for cutting the thread and two relatively movable members for holding the end of the cut thread. spaced from the blades and comprising a surface of revolution for holding the thread between it and the other member for holding the end. said surface of revolution being mounted to tilt freely, for the purpose described.

3. In an automatic filling replenishing loom, the combination with a thread parter. a blade fixed with respect thereto and spaced therefrom. a tilting member having a blade cooperating with the first named blades to cut the thread, and a roller on a fixed axis for engaging with the spaced blade to hold the cut end of the thread, said roller being capable of tilting on a longitudinal axis to accommodate irregularities in the thread.

In testimony whereof we. have hereunto afiixed our signatures.

ARTHUR C. VARNUW. JAMES ERNEST BIRDSALL.

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