US1701520A - Heddle frame - Google Patents

Description

Feb. 12 1929. 1,701,520

J. WALKER, JR

HEDDLE, FRAME 1 Filed Feb; 25, 1928 2; I $5 T 120 T Inventor (707m Wwker;

Patented Feb. 12, 1929.

UNITED 'sT 'J'OI-IN WALKER, JR.,'

Tas

MELROSE PARK, PENNSYLVANIA, ASSIGNOR 'JIO WALKER MANUFACTURING COMPANY, INC.,- A CORPORATION OF PENNSYLVANIA.

HEDDLE "FRAME.

Application filed February 25, 1928. Serial N o..256,83 1.

' The object of the invention is to provide improvements in textile machinery, andmore particularly heddle frames for looms.

Another and more specific object is to provide in heddle frames means for stiffening the oppositely positioned rails and for supporting the heddle bars at one or more regions intermediate their end portions wherev their main support is provided.

A further object is to provide an improved stay rod connecting the oppositely positioned rails of the frame to prevent them from springing or flexing out ofa predetermined relation with ea chother, and to efficiently sup port the usual heddle bars intermediate their ends and prevent their becoming curved or bent, which would permit the bank or series of heddles carried thereby to become shifted at the center out of their common plane.

Still another object'is to'provide a simple yet highly efficient connection between the re-- spective rails of the frame and the ends of the stay rod, whereby the latter effectually resists any tendency of the former to move either toward or away from each other, at the same time permits the ready disengagement ofthe rod from the frame members.

And a still further object is to provide a stay rod of this character with a substantially centrally positioned apert-ur e,'opening laterally through one edge and so shaped as to permit the ready insertion of a heddle bar and prevent its accidental removal laterally therefrom, yet permitting the disass ociation of said rod and bar in a predetermined manner;

Vfith these and other objects inmind, the present invention comprises further details of construction and operation, which are fully brought out in the followin g description when read in conjunction with the accompanying drawings in which Fig. 1'is a front elevation of a heddle frame comprising top and bottom rails and heddle bars connected by a stay or brace embodying and secured in position by features comprising the present i'nx' e'ntion'; Fig. 2 is an enlarged fragmentary portion of the device as shown in Fig. 1" and partly in section; Fig. 3 is a vertical section on the line 33 of Fig; 2; and Fig. 4 is a perspective view of the lower end portion of the improved stay rod. I

Referring to the drawings, a heddle frame is here shown as comprising parallel oppositely positione'd top and bottom rails land 2,

connected at their ends by anysuitable means su'chas straps 3. Heddle'supportingbars 1 and 5 extend longitudinally of the frame parallel with and spaced slightly from the neighboringframe'rails 1 and 2, and operatlvely supporting a bank or series of heddles 6, which are attached thereto in any wellknown manner.

The stay rod in the present instance is preferably a metal strap which extends transversely in aplane perpendicular to the plane of the rails 1 and 2 and comprisesva central portion 7 which adjacent to its opposite ends is bent angularly to provide feet 8 bifurcated by centrallypositioned slots 9, which extend longitudinally inwardly from the respective ends of the red, the terminal portions 10 of each foot being angularly bent in opposite directions so as to be in alignment with each other and therefore substantially parallel with the central portions 7.

In their adjacent surfaces. the respective rails '1 and 2 are provided with recesses 11,

terminating in one direction in shoulders 12 and in the opposite direction in other shoulders 13, between whichshoulders are normally positioned the end portions or feet 8 of to provide ofi-sets 14, to receive the toes or terminal portions 10 of said feet;

Each .of said rails is'furthermore provided with a bolt 15,extending therethrough, and

[the stay rod, while-adjacent to said lasti named shoulders, said recesses are deepened in substantial alignment with each other,v

each bolt having ahead 16'a-dapted to engage the normally outer surface of'oneof the feet 8,'while each bolt is also provided beneath its head with an enlargement 17, which is smaller than the head but larger in cross section than the shank of the bolt, being also of greater extent; in one direction than in other, so as to fit snugly within the slot 9 of the foot, to prevent the latter from turning.

This bolt also normally secures the foot witliin the recess 11, the adjacent toes 1.0 within the deeper off-set 14, and the foot as awhole between the shoulders 12 and 13. r

Itwill also be notedthat the stay rodad- 'jafcent to its end portions is provided with centrally disposed apertures 18, through which the heddle bars are adapted to extend,

each of said apertures being guarded by a finger 19 to prevent abar accidentally escapingtherefrom, but opening laterally beyond the free end of said finger to permit the ready removal of the bar through the outlet 20 when desired.

With this construction, the stay rod is normally secured in operative position by the bolts 15 and is prevented from turning by the enlargements 1'? within the foot slots 9, and from movement with respect to said rails by the shoulders 12 and 13 in cooperation with the bolts themselves. However, to detach the stayrod from the frame rails, said bolts upon being loosened and moved longitudinally towards each other permit the respectively adjacent foot to be freed from said bolts and from the rails, upon effectively shortening the rod or the distance between its ends by bending or flexing it centrally at the same time permitting relative movement of the heddle bars towards the open ends of the apertures 18, whence they too are freed from engagement with the stay red.

It will also be noted that the foot termini are tapered by converging the transverse ly opposite sides thereof, said termini being adapted to be drawn by the attaching means 15 into the body or" the frame n'ien'ibers 1 and 2, when only the major portions 11 of the recesses are [)IOVlflGtl tor reception of the angular-1y disposed feet 8. in any such case the toes or termini 1O tend also to contract the slots 9 and thereby bind tighter the enlaro'ed )ortions 17 of said attachin means V m h lo, and positively prevent even a slight axial oscillation of said rods.

-. Having thus described my invention, what I claim and desire to protect by Letters Patent of the United States is r 1. In a heddle frame, the combination of a rail having a recess defined by oppositely positioned shoulders, with a stay rod having a bifurcated angularly directed end portion positioned in said recess between said shonlders, and means engaging said rail and extending; through the bifurcated portion or said rod to normally secure said rail and said rod in operative relation, said means when loosened permitting said. rod to be separable therefrom by moving said end portion transversely of? the adjacent portion of said means.

2. In a heddle frame, the combination of a rail. having a recess in turn. having an ottset portion. with a sta red having a bit catod foot section positioned in said recess and having: an angular y bent portion extending into said oli'set portion, and fastening means extending through said rail and through the bifurcation of said foot section to prevent the accidental separation oi said rail from said roe, said means when loosened a rail, with :1 st

permitting said rod to be released therefrom by longitudinal movement or" said foot section transversely of the foot-engaging portion of said means.

In a heddle frame, the combination of a rail having a recess in turn having an offset portion, with a stay rod terminating in an angularly bent toot divided by a slot and positioned in said recess, the portions of said foot upon opposite sides of said slot being singularly bent with respect to said foot and being positioned in said otl'-set, and fastening means extending through said slot and having a transversely enlarged portion engaging the opposite sides of said slot to prevent said rod and said means from turning axially.

4. In a heddle frame, the combination of a rail havinga recess defined by oppositely positioned shoulders and in turn having an oil-set portion, with a stay rod terminating in an angularly bent foot divided by a slot and positioned within said recess between said shoulders, the divided terminal portions of said foot being angularly bent with respect to said foot'and normally positioned in said recess oii-set, and a bolt extending through said rail and having a transversely enlarged portion engaging the opposite sides of said slot to prevent said rod and said foot from turning axially and to prevent said foot from being accidentally withdrawn lon gitudinally from said recess.

5. In a heddle frame, the combination of a rail having a recess defined by oppositely positioned shoulders, with a stay rod terminating); in an angular-1y bent foot divided by a slot and positioned within said recess between said shoulders, and a bolt extending through said rail and having a transversely enlarged portion engaging the opposite sides of the slot to prevent said rod and said bolt from turning axially and to prevent said foot from being accidentally withdrawn longitudin ally from said recess.

6. in a heddl'e frame, the combinationof rod comprising a rectilinear body portion extending at an angle to said rail and a footportion having a slot and positioned para lel with said rail, and fastening; means carried by said rail and extending through said slot'in said foot to normally secure said toot and said rail together, said toot and said rail being: separable by relative longitudinal. movement of said toot and transverse movement oi the teething-agingportion of said means.

lit)

signature.

JOHN EVALKER, as.

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