US352499A - Wire picture-cord - Google Patents

Description

(No Model.)

G.O.TATEJJL WIRE PICTURE (3031).,

Patented Nov. 9, 1886.

N. PETERS muuw n m Washingion 0.4:

NI/TED S ATES PATENT Orrtca.

GEORGE O. TATE, JR, OF MALDEN, MASSACHUSETTS.

WIRE PICTURE-CORD.

SPECIFICATION forming part of Letters Patent No. 352,499, dated November 9, 1886.

Application filed February 24, 1886.

To all whom it may concern:

Be it known that I, GEORGE (J. TATE, J r., of Malden, in the county of Middlesex' and State of Massachusetts, have invented certain new and useful Improvements in Wire Picture-Cords, of which the following is a specification.

My invention relates to picture-cords, and particularly to that class of such articles composed of a plurality ofwires plaited or braided together to form the cord, the object of the invention being to so improve awire picturecord of the character mentioned that it will not stretch when subjected to tensile strain, occasioned by hanging a picture or analogous article thereto, or be weakened by use or age, occasioned by the decay or disintegration of any of the component parts. I

My invention consists in an improved nonextensible wire picturecord composed of a straight flexible wire core having a plurality of wires plaited or braided therearound in such manner as to give body to the cord and aid in sustaining any tensile strain to which the cord may be subjected, all as hereinafter fully described, and subsequently pointed out in the claims.

In the drawings hereto annexed and forming a part of this specification, Figure 1 represents on an exaggerated scale a portion of my wire picture-cord formed in the way that I prefer to construct it. Fig. 2 is a cross-section thereof on the line 00 00, Fig. 1.

The same letters of reference refer to the same parts in both figures.

a represents the core of my cord,which core is composed of comparatively soft or yielding metal, so that it can be readily bent, and around this core I plait or braid a number of wires, b, preferably smaller or of finer gage than the core-min such manner as to cover the straight core and give body to the cord, and at the same time aid it in sustaining any tensile strain to which it may be subjected when a picture or analogous article is hung ,thereto, as is clearly represented in the drawings. I show nine strands of wire I) as plaited around the core a, though a greater or less number of such wires may be employed, according to the character and size of the picturecord it is desired to form.

Serial No. 193,096. (No model.)

IVire picture-cord as heretofore constructed has usually been composed of a number of small strands of wire braided or plaited together, as myimproved cord would be with out the straight core a,and while the requisite strength and flexibility of the cord are thus secured,it is open to the objection that it gradually stretches when a picture of any considerable weight is hung thereto, and the picture is thus thrown out of place or position. By my invention this difficulty is overcome, a cord being provided that will not stretch under the circumstances mentioned, and will yet'be as flexible and as easily bent as wire cords of ordinary or common construction. Besides this,the wires b, braided or plaited around the core a, give body or size to the cord, enhancing its appearance, and by being braided or pla ited around the core at a slight angle to its length receive a portion of the tensile strain to which the cord is subjected when in use, and so strengthen the same.

.I am aware that a picture or sash-cord has heretofore been constructed composed of a steel wire or core of required resistance to ten sile strain, around which was wound an ornamental wire and a waxed thread in close spiral coils, or a spiral of small pitch, sothat the covering wire and thread should not bear any of the strain to which the cord might be subjected.

I am also aware that a picture-cord has here- 1 tofore been manufactured consisting of a body of several strands or a single strand provided with a fibrous wrapping and having an outer wrapping or covering of wires braided thereon.

Neither of these cords, however, is composed wholly of wire, as is my cord; but both'contain fibrous material in their structure,which prevents them from being dipped in acid tocleanse them for the purpose of 'plaiting and- I for other reasons, as is necessary after the wires have been formed into a cord. Again, neither of the cords just referred to is as flexible as myimproved corda very desirable feature in the construction of picture-cords. Furthermore, my improved cord'can be easily and cheaply manufactured, and by reason of the fact that it can be plaited to keep it from corroding and be cleansed at any time by washing it with acid or any other liquid,

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there being no fibrous material in its compoing of a core of straight wire having a plurality sition to be destroyed or to decay, it maintains of wires of finer gage than the core plaited or its strength and appearance for substantially braided therearound, as set forth. I 5 an indefinite period. In testimony whereof I have signed my name 5 What I claim is to this specification, in the presence of two sub- 1. An entirely metallic picture-cord consistscribing witnesses, this 14th day of January,

ingofa core of straight Wire having a plurality 1886. of wires plaited or braided therearound at a slight angle thereto, to aid in sustaining any GEORGE TATE" r0 tensile strain to which the cord may be sub- Witnesses:

jected when in use, as set forth. ALBION L. F. MITCHELL,

2. An entirely metallic picture-cord consist- ARTHUR W. CROSSLEY.

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