US2080759A - Lug strap - Google Patents

Description

May 18, 1937- J. H. cHADBouRNE ET AL 2,0802'759 LUG STRAP y Filed oct. 19, 193e ulg/gb. ff

@myriam ,475.59272 (gi'azzre j cracked and fell to pieces in use, and in both` Patented May 18, 1937 UNITI-:D STATES PATENT AOFFICE L UG STRAP Joseph H. Chadbourne, Pomfret, and Charles A. Burdick, Elmville, Conn., assignors to The Danielson Manufacturing Company, a corporation of Connecticut Application october 19, 193s, serial No. 106,4o9`

1 Claim.

Our invention relates to lug straps for` looms.

The pounding of the picker stick against the upon each other without any sheath, and saturated with an adhesive, and then moulded into final form.

-Both the above structures being sheathless,

instances the material employed had no greater resistance to longitudinal strainsthan to transverse strains with the result that the material adjacent the bolt slots was injured or the slots deformed.

The essential objects of the present invention are to overcome the above disadvantages; and

to attain the desired results in a tough, strong, light and inexpensive structure.

To the above ends primarily but not exclusively our invention consists in such parts and in such combinations of parts as fall within the scope of the appended claim.

In the drawing,

Figure l is a plan view of a sheath or strip of canvass or like material with a plurality of ller cords resting in a layer thereon,

Figure 2, an end elevation of the same after the cords are amassed,

Figure 3, a like elevation of th`e same after the sheath has been bound around the cords,

Figure 4, an end elevation of the compressing mould With the bound contents therein,

Figure 5, a perspective view of the moulded member after removal from the compressing mould,

Figure 6, a like view of a forming device in which the moulded member is mounted,

Figure 7, a perspective view of the member after removal from the forming device and after the finishing operations,

Figure 8, a horizontal section of the complete strap taken on line 8 8 of Figure 7,

Figure 9, a top plan view of the sheath in its initial position, a modied form of cord filling resting flat thereon, and v Figure l0,-an enlarged fragmentary detail of the cord lling shown in Figure 9.

Like reference characters indicate like parts throughout the views.

In constructing' our novel lug strap the initial step consists in placing loosely upon a .rectangular strip or sheath I5 of canvas or like material a layer I6 of filling material consisting of flexible cords Il composed of spun .fiber or staple, such, for instance, as cotton, wool, or the like. As shown in Figure l the cords I1 extend longitudinally of the strip I5.

The described layer I6 isgnow impregnated with an adhesive such as gelatnous glue, and

- the latter is also applied to the entire upper face of the strip I5. The mass I6 is then manually compressed ar'il manipulated in such a manner as to rest centrally of the strip I5 and longitudinally thereof. This position of the parts is shown in Figure 2.

The filling I6 is next bound or Wrapped in the strip I5 whose binding edges overlap as at 20, as shown in Figure 3.

This cylindrical package with exposed ends, being impregnated With adhesive, is of a consistency to enable transverse compression under pressure, and to this end the package is introduced into a mould 22 having a transversely rectangular moulding chamber 23 and is therein compressed. In Figure 4 the end of the mould and of the contained package are shown.

" The compressed member while still moist is next removed from the mould and is indicated in a general manner by the reference numeral 25 shown in Figure 5. This member is substantially oblong in shape, and in its-moist condition is subjected to a shaping step to impart a U-shape thereto.

In this instance this shaping is effected, as shown in Figure 6, by upper and lower clamping blocks 2.1 and 28 supplemented by the lateral clamping leaves 29 hinged at their upper end portions, as at 30, to the upper block 2I. This irnparts to the member `an arched yoke portion 32 erally integral character, their continuous extent, and their longitudinal disposition along the line of the greatest strain upon the lug strap,'are each an important factor in the strength of the completed structure, and contribute a measure of 39. The sheet 31 may be used instead of disexibility to the completed structure. connected cords as a filler in the lug strap, the The employment of a sheath I5 independent of manipulation bf this sheet and other steps in the the filler core I. completely surrounding the process of construction being analogous to that 5 neck and leg portions of the strap, and of a relaalready above described. l

tively tough and impervious character, excludes We claim:-

the moisture of the air to a great extent, pre- In a lug strap, a textile sheath, and a filler vents disintegration of the enclosed filler core, core including a plurality of separate initially and shields the strap from extraneous blows and unbound parallel cords lengthwise of the sheath 10 contacts. A and united by adhesive and enclosed by the lll In Figure 9 the wrapper or sheath I5 is shown sheath. supporting a fabric sheet 31 comprising cords JOSEPH H. CHADBOURNE.

38 loosely interwoven with threads or laments CHARLES A. BURDICK.

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