US2771909A - Loom reed and actuating means therefor - Google Patents

Description

Nov. 27, 1956 G. E. ULRICH LOOM REED AND ACTUATING MEANS THEREFOR Original Filed March 7, 1952 5 Sheets-Sheet l INVENTOR zsmrs 7 V4066.

ATTORNEY Nov. 27, 1956 G. E. ULRICH 2,771,909

LOOM REED AND ACTUATING MEANS THEREFOR Original Filed March 7, 1952 3 Shee'ts-Sheet 2 v NVENTOR @5741 5 5,: (AP

BY W 4 ATTORNEY Nov. 27, 1956 G. E. ULRICH 2,771,909

/ LOOM REED AND ACTUATING MEANS THEREFOR Original Filed March 7, 1952 5 Sheets-Sheet 5 INVENTQR fasmre A? axe/cm ATTORNEY United States Patent LooM REED AND ACTUATING MEANS THEREFOR GustaveE. Ulrich, Union City, N. J., assignor, by mesne assignmentgto Tapes, Inc., PatersomN. J., a corporation of Delaware 3 Claims. (Cl. 139-192 This invention relates to shuttleless looms for weaving narrow fabrics such as tape, ribbon and the like, and .has for its object to provide an improved reed or beater for packing the weft threads thereof. This application is a division of my co-pending application Serial Number 275,329, filmed March 7, 1952.

The principal object of this invention is.to provide an improved reed of lighter weight which is adaptable for. operation at substantially increased speeds, which will have precision movement and which will impose a mini: mum friction on the warp threads guided thereby.

Another object is to provide means for actuating the reed in a linear path, the means being of small mass and adaptable to precision movements with small inertia thereby providing a mechanism of long life which will operate 'with small maintenance.

' A specific object is to provide a reed having individually flexible blades so that they may accommodate themselves to the direction of the individual warp threads. It is, in part, by virtue of this flexibility that friction of the warp threads against the blades is held to a minimum.

Another object is to provide, a' reed having blades held together on a base but not connected at their outer ends. The reed thus does not contact the warp threads in any manner which will cause these threads to be'defiected vertically during their travel from the headles to the slider plate where the fabric takes form. It is by this freedom of the warp threads from vertically guiding action by the reed that fraction and undue vertical stresses on the threads is avoided. Machine wear on the threads is thus reduced to a minimum with the result that there is less thread breakage in the loom and, also, a stronger and more uniform product is manufactured by the loom.

Other objects and advantages will become hereinafter more fully apparent as reference is bad to the accompanying drawings wherein my invention is illustrated and in which:

Fig. 1 is a top elevation of a loom equipped with my improved reed or beater;

Fig. 2 is an elevation taken at the left side of Fig. 1; partially broken away to show the reed and reed actuating mechanism;

Fig. 3 is a front elevation of the loom;

Fig. 4 is an enlarged detail vertical section of the reed and its environment, taken along the line 4-4 of Fig. 3 and also along the line 44 of Fig. 5;

Fig. 5 is a vertical section taken along the line 5-5 of Fig. 4;

Fig. 6 is a top elevation of the reed;

Fig. 7 is a detail vertical exploded view of several reed blades and spacers;

Fig. 8 is a detail perspective exploded view of the reed blade ends and the end retainer plates therefor; and

Fig. 9 is a perspective of one blade spacer.

More particularly, the numeral 1 refers to the base of the loom which houses and supports, among other things, a shaft 2 having a cam wheel 3 fixed thereon. A cam groove 4 in the wheel 3 receives a roller 5 which is journalled on a bellcrank 6 pivotally mounted by means of a shaft 7 on the base 1. Rotation of the cam wheel 3 by a motor or other suitable source of power (not shown) actuates the bellcrank 6 imparting to its upper end 8 an oscillatorymovement.

The top plate- 9 of the base 1 has a reed carrier bed 10 secured-thereto and both of these. members 9 and 10 have aligned openings through which the upper end 8 of the bellcrank projects. The reed carrier 11 rests upon the bed 10.

The reed carrier 11 is best seen in Figs. 4 and 5, arranged in the form of a solid metallic member having a central vertical, opening 12 through which a pin 13 extends transversely. The pin 13 is engaged by the end 8 of the bellcrank, this end being bifurcated at 14 and equipped with a retainer plate 15, thus forming a yoke for the pin 13. The carrier 11, as shown in Fig. 5, has inclinedsidewalls which are in sliding contact with inclined guide blocks 16 and 17 secured to the base top 9. The block 17 is adjustable with respect to the top 9 and the carrier by virtue of an oversized slot which receives a hold down screw 18 together with a manually adjustable lateral screw 19. The carrier 11 is thus reciprocated along the path defined by the guides 16 and 17 on the bed 10. 7

Two clamp plates 20 and 21 hold the reed on the carrier 11. The plate'20 is essentially flat on both sides except for a machined ridge or. transverse lineal tongue 22 along the bottom thereof. The plate 21 has a flat horizontal portion 23 which underlies half of the plate 20 and which is'integral with a vertical wall portion 24. Screws 25 pass through the plate 20 and through the portion 23 and secure the clamps 20 and 21 to the carrier 11, the wall portion 24 lying against the front end of the carrier. A horizontal portion 26 integral with the vertical wall 24 has a ridge or transverse lineal tongue 27 on its upper surface which, along with the ridge or transverse lineal tongue 22 of the upper plate engages the blades and spacers of the reed. It will be noted that the bottom of the clamp 21 is supported above the bed 10, out of contact therewith as these clamps should not constitute a part of the surface sliding on the bed 10.

The reed blade assembly is assembled as a unit before being inserted between the clamps 20 and 21. Thus, a multiplicity of reed blades 28, each having a shape as illustrated, are assembled with a spacer 29 separating each blade from contact with each adjacent blade. All blades and all spacers have aligned holes therethrough so that bolts, screws or rivets 30 hold them in firm assembly. The spacers and the adjacent blade ends also have aligned grooves 31 top and bottom thereof for reception of the ridges or transverse lineal tongues 22 and 27 of the clamp plates 20 and 21. The transverse lineal tongues 22 and 27 and the coacting grooves 31 are so spaced from the rear ends of the reed blades 28 and the spacers 29 that the vertical wall portion 24 of plate 21 provides an abutment for the rear end of the removable and replaceable reed blade assembly for firmly maintaining the assembly on the carrier 11. Thus, as the carrier 11 reciprocates the reed, generally indicated by the reference character 32, the outer ends of the blades 28 recede from and approach the end of the fabric slide 33 fixedly mounted above the carrier 11.

The function of the reed is to cause the warp threads 34 to converge from their spread or fanned out formation, which they have as they emerge from the headles 35 (see Fig. l), and to press or beat each pass of the weft thread 36 as it is fed between the warp threads 34 by the needles 37, in the fabrication of the fabric 38.

Patented N av. 27, 1956 befound in theparent application of. which: this application is a division.

Since the reed functions to cause convergence of the warp threads; it is apparent that the blade s and artio-m larly those Blade's toward the outer ends of the reed; have rubbing c'ohtactwith the outer warps. It is 'animportant feature or this invention: that the Blade's flex laterally to relieve: the friction and also to cause the rubbingito occur against the surfaces rather than against the leading edges ofthe Blade's As sta'ted, the reed 32 is composed of the blades 28 and spacers 29-wliiclT'are he'ld-oii the carrier-1'1 by the clamping" plates Z W'an'd 21-; It. will be noted that the combined width of the blades and. s'p'acer'sne'ed' not correspond to the width of the plates 20 and 21 In Fig. 6 this width does' not correspond but, assho'wn in dotted liliestif the bolts- "30 'a're replae dby longer bolts then additional spacers 29and blades 2$ may be added. Since the: bolts hold the s1.t'21cers-arid bladesin assembly it is not 'neces'sar-y that all of the groovesal have-en agement with the ridges 22 and 27- of the clamping' plates.

Various alterations in the design of the' several parts may he made without departing from the spirit of my invention and I- therefore desire to be extended prot e'ctio'nasdefin'ed bythe scopeof the appended claims.

What I claim' is:

l. A" loo'mreed assembly comprising in combination with a reed carrier a pair of co'acting clamp plates, each of said plates having fiat parallel extending contacting portions, means extending through said portions and forming a fastening means for said plates on' said reed carrier; one of said plates projecting coplanar with the aforesaid fiat contacting portion thereof and the other of said plates having a right angular bend therein forming an abutment wall disposed in abutment with one side of said reed carrier, said last mentioned plate" havin'gan integral portion extending from said abutment wall in spaced offset parallel relation to the coplanar projection. of the aforementioned plate, lineally extendin'g: transverse tongues carried onthe aligned interior surface of the integral portion ofsaid second plate and the coplanar projection of said first plate, a reed assemv 4' Y bly comprising a multiplicity of reed blades and spacers disposed in alternate parallel. relationshipandfastening means for securing said reed blades and spacers together as a replaceable unit, said reed blades and spacers having aligned transverse grooves therein adapted to establish interfitting clamping relationship with said lineally extending transverse tongues when the flat parallel extending contacting portions of said plates are-mounted in contacting position with the" edges of said reed blades and: spacers and with the ends thereofv inabutting, rela'- tion: with: the abutment wall of said second mentioned plate.

2. A loom reed? assemblyv as setforth in claim l in wlii eli said li eally extending v'tft'tilsverse tongues. on said plates and said grooves in said reed blades andqspacers are polygonal in cross section and form interlocks for mounting said reedbl'a'de's and spacers as a unit with respect to said reed carrier.

3; A- loorn reed assembly as set forth inclain'r- 1 in which" saidreed 'cartieris s'lidable and has a perforation extending therethrou h, a pin extending transversely through: the perforation insaid reed carrier and substantially parallel to the abutment Wall ofsaid second mentioned clamp plate and a driving bell crank extend ing through the perforation in said ree'd' carrier; said bell crank being bifurcatedl on the end thereof for engagingi said pin and impartingv reciprocating movement to' s'aidre'e'd carrier ina direction coplanar with the direction of said reedblades.

References Cited in the file of this-patent UNITED STATES PATENTS 570381 Clark et al'. Obi. 27, l 8 9 6 919,023 Kendrick Apr.- 20 1909 1','6'0' 9,2' 72 Davis -l Nov. 30,1926 1',9'58,3'83 Winters May 8, 1934 2,294,368 Harte!- Sept. 1, 1942 2.396974 Turner -n Mar. 19 i946 FOREIGN PATENTS 3 19 303- Germany Mar. 10, 1922 353,722 Germany Mar; 24, 1922 3551222 Germany June 22, 1922

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