US766501A - Thread-cutting loom-temple. - Google Patents

Description

PATENTED AUG. 2, 1904.

A. A. HULL.

THREAD CUTTING LOOM TEMPLE.

APPLICATION FILED MAY 26, 1904.

N0 MODEL.

of the lay (which is an occurrence well known promptly as is desirable, the pull on the thread UNTTED STATES Patented August 2, 1904.

PATENT FFICE.

ALFRED A. HULL, OF KNOXVILLE. 'ITENNESSEE, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, B IASSAOHUSETTS, A CORPORATION OF MAINE.

THREAD-CUTTING LOOlVl-TEMPLE.

SPECIFICATION forming part of Letters Patent No. 766,501, dated August 2, 1904,

Application filed May 26, 1904:. Serial No. 209,831- (No model.

To all whom it 77mg concern.-

Be it known that I, ALFRED A. HULL, a citizen of the United States, and a resident of Knoxville, county of Knox, State of Tonnessee, have invented an Improvement in Thread- Outting Loom-Temples, of which the following description, in connection with the accompanying drawings, is a specification, like charaeters on the drawings representing like parts.

This invention has for its object the production of a thread-cutting loom-temple embodying certain novel features of construction whereby a very positive and certain cutting action on the thread is insured, the temple relating to the type forming the subject-matter of United States Patent No. 585,465. In the temple shown therein the head is slotted transversely at its outer end to receive an upright fixed blade and a cooperating movable blade, the outer end of the latter being bifurcated or slotted to receive the fixed blade, and the movable blade is also downturned or hooked at its outer end. \Vhen the thread is to be severed, the said blade is depressed to cause its hooked end to engage the thread, and then the blade is drawn into the head, thereby pulling the thread against the fixed blade to part it, the parting or severance of the thread partaking more of a break than a clean cut. The movable blade is actuated by or through the movement of the lay, and the vibration of the loom and slight changes in the stroke of to those skilled in weaving) sometimes will fail to eli'ect the severance of the thread as by the movable blade being insufiicient to break it across the fixed blade.

In my present invention 1 have devised means to positively cut the thread by a shearlike action,-the movable cutting-blade being yieldingly pressed against a relatively fixed plate, so that when the cutting-blade engages the thread the cutting edge of such blade is drawn across the thread with a shearing movement, the edge of the fixed plate presenting the resistance necessary to maintain the thread in position to be sheared. The cutting action is thus made certain and a sharp clean cut is made promptly and quickly and uninfluenced by loom vibrations or variations in the laystrokes.

The novel'features of my invention will be fully described in the subjoined specification, and particularly pointed out in the following claims.

Figure 1 is an inner side elevation of a threml-cutting loom-temple embodying my present invention. Fig. 2 is an outer side view thereof, the temple-stand being broken off. Fig. 3 is an end elevation of the templehead and adjacent parts, and Fig. 4: is a top or plan view thereof.

The stand A, the head comprising the pod B, cap B, the heel B, attached to the pod, and the toothed roll B rotatable on pivots carried by the cap, are in their general construction and arrangement substantially as in the patent referred to. The pod is slotted at 1, Fig. 3, to receive the lower end of an upright metallic plate 2,, preferably of steel and held fixedly in position by a screw 3, the upper end of the plate extending into the open end of a transverse slot& in the pod, the plate 2 and slot being shown in dotted lines, Fig. 4. The shank B, which carries the temple-head, has a lateral enlargement I) slotted in continuation of the slot L, and the cutting-blade 5 is inserted in the slots, the outer end of the blade being downturned or hooked, as at 6, and normally projecting beyond the outer end of the slot 4:, as shown.

A cutting edge 7, Figs. 1 and 2, is formed on the outer end of the blade at its under side, said blade being pressed against the side of the plate 2 by a spring 8, rigidly attached by a suitable screw 9, Fig. 1, to the inner side of the shank B, the free end of the spring bearing against the blade 5 behind the pod and cap, as shown.

A wire spring 10, spirally coiled at 11 to lit over a stud 12 on the shank B, has one end 13 bearing against a shoulder 1a thereon, the opposite end of the spring being downturned and bent into a loop 15, fitted over a lateral lug 16 on the heel 17 of the blade 5, all substantially as in said Patent N o. 585A65, the spring normally projecting the blade,as shown in the drawings.

The lateral enlargement 18 at the inner end of theblade acts to limit its spring-induced movement, a shoev 19, Fig. 2, on the blade sliding on the beveled under side 20 of the ear 6 to permit the shoe to slide and rock when the cutting-blade is operated.

As the lay beats up it first strikes the heel 17 of the blade 5 and immediately rocks the latter, depressing the hooked end 6 thereof, its cutting edge 7 wiping past the adjacent upright corner of the plate 2, and as the lay completes its movement the blade is drawn into the temple-head. If there is at such time a filling end between the selvage and the shuttle, such filling end will be caught by the hooked end of the blade 5 and drawn up against the plate 2 to be positioned thereby, and the cutting edge 7 by continued inward movement of the blade 5 draws across and shears or cuts the filling cleanly and sharply with an action similar to that of a pair of scissors or shears. The cut is made by the drawing action of the edge 7 across the filling instead of by pulling the filling across a fixed member till it breaks, and as the drawing action of the cutting edge is effected by engagement of the lay and the heel 17 it is not influenced improperly by vibration of the loom or a variation in the lay-stroke. The shearing nature of the cut is maintained by the spring 8, which always presses the cutting edge of the blade 5 against the side of the fixed plate 2, so that the filling is firmly supported immediately adjacent the cutting-point.

It is to be understood that the stand A will be provided with a suitable spring (not shown) to push the temple-head toward the back of the loom, the lay when beating up forcing the temple-head forward, as is common in reciprocating temples.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A temple-head provided with a toothed roll and having a transverse slot at its outer end, a movable blade located in the slot and having a cutting edge, a fixed support or stop for the filling-thread, extending upward in the slot, a spring to press the blade against the side of the said support, and means to operate the blade and draw its cutting edge with a shearing action past the support.

2. A temple-head provided with a toothed roll and having a transverse slot at its outer end, an upright plate fixedly mounted within the slot, a movable blade located in the slot and having a cutting edge, a spring to press said blade against the side of the plate, and means to operate the blade and draw its cutting edge with a shearing action pastthe front edge of the plate.

3. A temple-head provided with a toothed roll and having a transverse slot at its outer end, an upright plate fixedly mounted within the slot, a movable blade located in the slot and having a downturned hooked end normally projecting beyond the temple-head and provided on its under side with acutting edge, a spring to yieldingly press the blade against the side of the plate, and means to retract the blade and cause its cutting edge to wipe past the adjacent front corner of the plate.

t. In a loom-temple, a pod, a cap having a transverse slot at its outer end, an upright plate fixedly mounted in the slot, a movable blade having a downturned, hooked outer end provided on its under side with a cutting edge, a spring in sliding engagement with and serving to press the blade against the side of the plate, and means to operate the blade to cut with a shearing cut a filling end interposed between the front edge of the plate and the cutting edge of the blade.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED A. HULL.

Witnesses:

ADRIAN BRADLEY, D. F. Lovn'r'r.

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