USRE14420E - Poration - Google Patents

Description

' Reissued Jan. 8, 1918.

E. S. STIMPSON.

TEMPLE THREAD CUT TER FOR LQOMS. APPLICATlON FILED DEC. 7. I917.

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Edward 5.5i'unpson y we UNITED STATES PATENT oEEIo EDWARD S. STIMPSON, OF I-lIOPEDALE, MASACHUSETTS, ASSIGNOR TO DRAPEB COR- PORATION, 'OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

TEMPLE THREAD-CUTTER FOB. LOOM IS.

Specification of Beissued Letters Patent. Reissued Jan. 8, 1918- Ofllinfl No. 1,244,791, dated October 30, 1917, Serial No. 176,432, filed June 22, 1917. Application for reissue filed December 7, 1917.. Serial No. 206,102.

To all whom it may concern:

Be it known that I, EDWARD S. S'riMPsoN, a citizen of the United States, and resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Temple Thread-Cutters for Looms, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawin representinglike parts.

his invention relates to improvements in temple thread cutters for looms and the object thereof is to provide a simple form of thread cuttin device in which the stationary blade 01%)11td83 may be more securely anchored than in previous constructions.

A further object of the invention is to provide a temple thread cutter with a novel form of means for forcing the moving blade into engagement with the stationary blade whereb an efl'ective shearing action upon the filling end will be insured.

Other objects and features of the invention will more fully appear from the following description and the accompanying drawings and will beparticularly pointed out in the annexed claims.

In the drawings:

Figure 1 is an end elevation of a temple head and adjacent parts, and,

ig. 2 is a vertical sectional view of the temp e tliread cutter on line 2-2 Fig. 1,

Fig. 3 is a sectional detail of the blades on the line 3-3 Fig. 2.

The present invention contemplates a modification of the usual thread cutting temple to permit the stationary cutting blades to be supported by the cap of the temple instead the pod as in the usual construction. By reason of this change in structure the stationary cutting blades can be much more securely fastened to the temple and also means conveniently provided for forcing the movable blade firmly against the stationary blade so as to insure a proper shearing cooperation between said blades.

The temple thread cutter shown in the accompanying drawing comprises a bar 1 carrying at its end a head comprising the pod 2 which is integral with said bar and a cap 3 which is secured to the pod, the toothed being rotatably mounted between said pod and cap in the usual manner. A heel 5 which depends from the head of the temple is adapted to be struck by the lay upon its beat up to move the temple forward in the usual manner.

The body and cap are substantially of usual construction and provide a guideway 6 in which the cutter carrier 7 is pivotally and slidably mounted.

The cutting blade 8 of U-shaped form is rigidly secured to the front end of the cutter carrier while the rear end of the cutter carrier has a downward extension or heel 9 adapted to be engaged by the moving lay to operate the cutter, the heel 9 being nor mally located in advance of the heel 5 of the temple.

The cutter carrier and cutter are normally maintained in the extended position illustrated in Fig. 2 by a spring 10 connected at one end to a post or stud 11 on the bar 1 and at theop'posite end to a stud 12 projecting from the cutter heel 9, the action .of the spring being such as to force the cutting blade 8'beyond the front end of the temple.

The construction thus far described is of the usual character. In the usual construction of temple thread cutter the stationary blade which cooperates with the ivotal and forwardly and backwardly mova le blade 8 is secured in a slot in the pod and extends vertically upward. across the mouth of the guideway 6 in which the movable blade reciprocates. While this construction is commonly employed in loom temples having a single stationary blade the base portion 13 of the pod beneath the guideway 6 is found to be weakened too much if a second slot for the supplemental blade or spring is made in it. 1

Since, in the operation of the loom the lay passes closely beneath the temple, no room is afforded which will allow the'thickening or reinforcing of the base portion 13 of the pod to give sufiicient strength to support an additional stationary cutter I or spring.

In order to obviate this diiiieulty the present invention contemplates the provision of means for supporting the stationary blade or blades of the temple thread cutter from,

the cap portion insteadof the pod. To this end the portion 14 of the cap is thickened or preferably provided with a boss 15 of sulficient thickness and strength to enable the same to be slotted to receive a stationary blade and in addition thereto a spring plate which may cooperate with the backward and forwardly moving blade and which will serve to maintain the movable cutter in constant shearing relation with the stationary blade and which also may if desired provide a second cutting blade. Inasmuch as no movable instrumentality passes over the temple thread cutter in close proximity to the cap thereof any desired thickness of metal may be provided to effect the purpose set forth.

As illustrated in the drawing parallel slots 16, 17 are formed in the boss directly above the mouth of the guideway 6 in which the movable blade reciprocates and a staobtained than usual in temple thread cut tionary cutting blade is seated in the slotv16 in cooperative relation to the movable cutting blade. The lower end of the stationary blade preferably engages the bottom wall 19 of the guideway and also abuts against the vertical side wall 20 thereof. If desired a slot for the lower end of the stationary blade 18 may be formed in the pod, but usually this will be found. unnecessary and undesirable.

By reason of this construction the station- ,ary blade is very rigidly supported adjacent the end of the temple roller and may be placed as near the path of the edge of the fell of cloth as may be desired.

In order to maintain a constantcontact between the reciprocating blade .8 and the stationaryblade 18 to insure proper shearing action, a spring plate or blade 21 is seated in the slot 17 and caused to bear against the blade 8 in such a manner as to force it firmly in contact With the reciprocating blade 18. The spring plate 21 is illustrated herein as provided at its upper end with an offset portion which is seated in the slot 17, the free lower portion of the SPIlIlV blade 18 bearing against the side of the blade in the manner aforesaid. The stationary blade 18 and the spring plate 21 may conveniently be anchored and retained in the slots 16 and 17 respectively by a single screw 22.

The cooperating edges of the movable blade 8 and the stationary blade 18 desirably are beveled to present sharp cooperating edges illustrated in Fig. 3 while the spring plate '21 is without a beveled edge. If however, a double cutting action isdesired the plate 21 may be beveled in the opposite direction to that of the blade 18 and the movable blade be constructed to present a square edge to both beveled stationary cutters. By reason of the present inventio'n a much more-rigid construction is tors and a proper shearing cooperation between the reciprocating and stationary blades insured.

It is to be understood that the invention disclosed herein is illustrative in character and that various modifications in form and arrangement of'parts maybe made within the spirit and scope of the following claims.

Having thus described my invention what I claim as new and desire to secure by Let ters Patent is:

- 1. A thread cutting temple for looms comprising a pod and a cap, a guideway in said cap and pod, a slidably mounted cutter backwardly and forwardly movable in said guideway, and a stationary cutting blade rigidly secured to said cap at the mouth of said guideway in cooperative relation to said movable cutter.

ting blade rigidly secured in said slot in cooperative relation to said movable cutter.

3. A thread cutting temple for looms comprising a pod and a cap, a guideway in said cap and pod, a cutter backwardly and forwardly movable in said guideway, a stationary cutter rigidly secured to said cap at the mouth of said guideway in'cooperative relation to said movable cutter and resilient means for forcing said movable cutter into engagement with said stationary cutter whereby an effective shearing action between said cutters is insured.

4. A thread cutting temple for looms comprising a pod and a cap, a guideway in said cap and pod, a cutter backwardly and forwardly movable in said guideWay, a sta- 'tionary cutter rigidly secured to said cap at the mouth of said guidcway in cooperative relation to said movable cutter and resilient means maintained in said cap engaging said movable cutter and maintaining the same in engagement with said stationary cutter whereby efl'ective shearing action between said movable andstationary blades is insured.

5. A thread cutting temple for looms comprising a pod and a cap, a guideway in said cap and pod and a cutter backwardly and forwardly movable in said guideway, a boss on said cap above said guideway, vertical slots in said boss at the mouth of said guidcway, a stationary cutter secured in one of said slots in cooperative relation to the.

movable cutter and a resilient member se cured in the other slot bearing agalnst said movable cutter and operating to maintain the same in effective shearing relation to the on said ca 'above said guideway, vertical slots in sai boss at the mouth of said guideway, a vertical stationary cutter fixed at its upper end in one of said slots and seated at its lower end against the wall of said guideway in said pod, a resilient member seated at its upper end in the other slot and having a lower free end engagingthe movable blade and adapted to maintain the same in shearing engagement with the stationary blade whereby an effective shearing; action between said blades is insured.

7. A thread cutting temple for looms comprising a cap and a pod, a guideway in Said cap and pod and a cutter backwardly and forwardly movable in said guidewa-y, a boss on said cap above said guideway, vertical slots in said boss at the mouth of said guideway, a vertical stationary cutter fixed at its upper end in one of said slots and seated at its lower end against the Wall of said guideway in said pod, a resilient member seated at its upper end in the other-slot and having av lower free end engaging the movable blade and adapted to maintain the same in shearing engagement with the stationary blade whereby an effective shearing action between said blades is insured, said'stationary blade and said resilient member being secured to said cap means.

In testimony whereof, I have signed my name to this specification.

EDVARD S. STIMPSON.

by a common fastening

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