US2061846A

US2061846A - Loom temple

Info

Publication number: US2061846A
Application number: US65316A
Authority: US
Inventors: Ira W Noyes
Original assignee: Draper Corp
Current assignee: Draper Corp
Priority date: 1936-02-24
Filing date: 1936-02-24
Publication date: 1936-11-24
Anticipated expiration: 1953-11-24

Description

Nov. 24, 1936. ,w, NOYES 2,061,846

* LOOM TEMPLE Filed Feb. 24, 1956 'INVENTOR. /EA. W. Noyes.

ATTORNEY.

Patented Nov. 24, 1936 UNITED STATES LOOM TEMPLE Ira W. Noyes, Hopedale, Mass, assignor to Draper Corporation, Hopedale, Mass, a corporation of Maine Application February 24, 1936, Serial No. 65,316 7 Claims. (cries-303) The present invention pertains to loom temples and has more particular reference to such temples of the type embodying a thread cutting mechanism.

Temples of the type mentioned commonly include a reciprocably mounted bar carrying at its rearward end a laterally extending head. The temple head, in which a fabric engaging roller is mounted, includes a cap detachably secured to the temple bar, there being a guideway extend- -ing through the head for reception of a rocking and sliding cutter blade. In prior constructions, downward rocking movement of the cutter blade is limited by cooperating surfaces formed on the cutter blade and temple bar at the bottom of the guideway, while other cooperating surfaces on the cutter blade and the exterior of the bar limit rearward sliding movement of the cutter blade.

The prior construction as just described has proven unsatisfactory in two respects. First, since the roll pin on which the fabric gripping roller is mounted extends across the guideway, a wearing of the aforesaid surface at the bottom of the guideway permits the cutter blade to drop down into contact with the roll pin and wear the latter in two. Second, a wearing of the aforesaid exterior surfaces of the temple bar permits the thread cutter blade to project too far rearwardly out of the temple and to thus come into contact with the reed. Temples which become worn as mentioned can be satisfactorily repaired only by replacing the worn temple bar with a new one, the temple bar being a comparatively large and expensive part.

I propose to correct the aforementioned defects by providing, in a temple of the class described, cooperating wearing surfaces which support the thread cutter blade out of contact with the roll pin and which are formed on parts which are relatively cheaply and easily replaced. I further propose to provide, in such temples, cooprating surfaces for limiting rearward movement of the cutter blade, which surfaces are also formed on such replaceable parts.

4,5v In accordance with the invention, I have provided in a loom temple having a temple bar, head, detachable cap, guideway, and thread cutter blade 'as above described, a lug which projects into the guideway and which has a surface cooperating 50 with a surface on the cutter blade to support the latter out of Contact with the roll in; The lug may further be provided with another surfaceengaging the cutter blade to limit rearward movement of the latter. The lug is carried by the 65; detachable temple cap, wherefore when the lug becomes worn the damage can be repaired simply by replacing the cap with a new cap having a new lug therein or, if the lug is detachably. secured to the cap as herein disclosed, the damage can be repaired by merely replacing the worn lug with a 5 new one. In either event, the replacing of the cap or the lug is much simpler and much less expensive than replacing the larger part herein called the temple bar.

The preferred embodiment of the invention is 10 illustrated on the accompanying drawing, of which:

Fig. l is a plan view of the temple, with the cap partly broken away;

. Fig. 2 is a view in elevation of the rear face 15 of the temple;

Fig. 3 is a view in elevation of the outside face of the temple with the cap partly broken away and appearing in section; and 1 Fig. 4 is a view similar to Fig. 3 but showing 20 the thread cutter blade in a different position.

The temple shown on the drawing includes a housing I which is adapted to be fixed to a loom frame (not shown) in the usual manner. A bar 2 is reciprocably mounted in the housing I, the 25 bar extending generally longitudinally of the cloth C being woven. The temple bar has at its rearward end a laterally extending head which includes a pod 3, depending heel 4 and other parts, formed integrally with the part designated 30 generally as the temple bar.

The temple head also includes a cap 5 which is detachably secured to the bar as by means of a screw 6. The temple head has a guideway 1 extending therethrough from front to rear. guideway is generally parallel to the bar 2 and is formed partly in the bar portion and partly in the cap portion of the temple head. A cutter blade 8 is mounted in the guideway for rocking and sliding movements, the particular cutter 40 blade shown being constructed, and operating, as is more fully disclosed in patent to F. E. Douglas, No. 1,919,146, granted July 18, 1933. The temple head also includes a roll pin 9 which is carried by the end wall It of the cap and extends across the guideway l, on which roll pin the fabric engaging roller I I is rotatably mounted.

The temple as thus far described is of usual construction. The operation of the thread cutter blade is also conventional. however, that a spring I2 normally holds the cutter blade rearwardly with the rearmost end thereof well up in the guideway, and that when the cutter blade is given its operative stroke it first rocks about a horizontal axis, depressing its rear- 55 The 35- It may be here noted,

most end, and then slides bodily forwardly. After its operative movement the cutter blade is returned rearwardly by the spring if. It will be apparent that, in the absence of means preventing such occurrence, a wearing of the surfaces which limit downward rocking movement of the cutter blade would permit the latter to engage the roll pin, while a wearing of the surfaces which limit the rearward sliding movement of the cutter blade would permit the latter to project too far rearwardly out of the temple.

In prior constructions, the aforementioned wearing surfaces were formed on the thread cutter blade and on portions of the temple head which were integral with the bar. Thus, in order to repair such worn temples it has been necessary to replace at considerable expensenot only the cutter blade but also the entire temple bar. The present invention provides a part, in the form of a lug, having wearing surfaces for the purpose mentioned, which part can be replaced at substantially less expense than replacement of the temple bar.

The lug I3 shown on the drawing projects into the guideway I and is attached to and carried by the cap 5, preferably by the end wall l thereof. The lug has a horizontal surface [4 which cooperates with a surface on the thread cutter blade to limit downward rocking movement of the cutter blade and thereby support the same out of contact with the roll pin 9. Since the cutter blade 8 is of conventional form, with the surface 15 above the roll pin, the surface I4 is formed on the top of the lug above the roll pin. It will benoted that with this construction a Wearing of the cutter blade alone would not permit the blade to come in contact with the roll pin.

The lug l3, and the thread cutter blade may also be provided with cooperating surfaces limiting rearward sliding movement of the cutter blade.

The lug shown on the drawing is provided with of the cutter blade.

a vertical surface l6 forwardly of the roll pin which surface cooperates with the vertical surface l'l normally provided on the thread cutter blade, the surfaces limiting rearward movement It will be noted that the lug l3, including its surfaces I4 and I6 is entirely within the guideway, it being within that portion of the guideway which is formed in the temple cap.

The lug I3 is carried by the end wall ll] of the cap and is preferably detachably secured thereto. The means for securing the lug to the cap may include the roll pin 9. In the present embodiment, the roll pin is threaded as shown at l8 and the threads thereof engage in a threaded hole in the lug, the roll pin passing through the lug.

Thus, in this particular embodiment the lug may be replaced with a new one merely upon the removal of the roll pin, but even a replacement of the casting, of which the cap is in the main comprised, together with the lug carried thereby, is simpler and substantially less expensive than replacing the temple bar.

Having fully disclosed the preferred embodiment of my invention, I claim:

1. A loom temple comprising a temple bar, a laterally extending head including a cap detachably secured to said bar, said cap having an end wall, a guideway extending through the head parallel to said end wall, a roll pin supported by said cap and extending across said guideway, a thread cutter blade mounted in saidguideway for rocking and sliding movements, and a lug projecting from said end wall into said guideway, said lug and cutter blade having cooperating surfaces entirely within said guideway for holding said cutter blade out of contact with said roll pin and for limiting rearward movement of said cutter blade.

2. A loom temple comprising a temple bar, a laterally extending head including a cap detachably secured to said bar, said cap having an end wall, a guideway extending through the head parallel to said end Wall, a roll pin supported by said cap and extending across said guideway, a thread cutter blade 'mounted in said guideway for rocking and sliding movements, and a lug carried by said cap and projecting into said guideway, said lug and cutter blade having cooperating surfaces within said guideway for holding the cutter blade out of contact withthe roll pin, said lug and cutter blade having other cooperating surfaces within said guideway for limiting rearward movement of the cutter blade.

3. A loom temple comprising a temple bar, a cap secured to said bar, said cap having a guideway extending therethrough generally parallel to said bar, a roll pin supported by said cap and extending across said guideway, a thread cutter blade mounted in said guideway for rocking and sliding movements, and a supporting lug fixed with respect to and carried by said cap wholly within said guideway, said lug and cutter blade having cooperating horizontal surfaces supporting the cutter blade out of contact with said roll pin, said lug and cutter blade having other cooperating surfaces limiting rearward sliding movement of the cutter blade.

4. A loom temple comprising a temple bar, a laterally extending head including a cap which is detachably secured to said bar, said cap having an end wall, a guideway extending through said head from front to rear thereof, a roll pin supported by said end wall and extending across said guideway, a thread cutter blade mounted in said guideway for rocking and sliding movements therein, and a lug carried by said end wall wholly within said guideway, said lug and cutter blade having cooperating horizontal surfaces above said roll pin for limiting downward rocking movement of the cutter blade, said lug and cutter blade having other cooperating surfaces forwardly of said roll pin for limiting rearward sliding movement of the cutter blade.

5. A loom temple comprising a temple bar, a cap secured to said bar, said cap having a guideway extending therethrough generally parallel to said bar, a roll pin supported by said cap and extending across said guideway, a thread cutter blade mounted in said guideway for rocking and sliding movements, and a separate lug detachably secured to said cap within said guideway, said lug and cutter blade having cooperating surfaces supporting the cutter blade out of contact with said roll pin.

6. A loom temple comprising a temple bar, a laterally extending head including a cap which is detachably secured to said bar, said cap having an end wall, a guideway extending through said head from front to rear thereof, a roll pin supported by said end wall and extending across said guideway, a thread cutter blade mounted in said guideway for rocking and sliding movements therein, a separate lug positioned wholly within said guideway, said lug and cutter blade having cooperating surfaces supporting the cutter blade out of contact with said roll pin, and meansin eluding said roll pin for detachably securing said lug to said end wall.

"7. A loom temple comprising a temple bar, a

laterally extending head including a cap which is detachably secured to said bar, said cap having an end wall, a guideway extending through said head from front to rear thereof, a roll pin supported by said end wall and extending across said guideway, a thread cutter blade mounted in said guideway'for rocking and sliding movements therein, and a separate lug within said guideway,

said lug and cutter blade having cooperating surfaces limiting downward rocking movement of the cutter blade and. other cooperating surfaces limiting rearward sliding movement of the same, said roll pin having threaded engagement with said lugfor detachabh securing the latter to said end wall.

' IRA W. NOYES.