US1671867A - Fastening device for guy ropes and other tensioning members - Google Patents

Description

May 29, 1928. l 1,671,867

' A. Z. MAMPLE ET AL.

FASTENING DEVICE iron GUY RoPEs AND OTHER TENS'IONING MEMBERS Filed Mlfch 17, 1927 Patented May 29, 1928.

uNlTEDsTA'rEs 1,671,867 PATENT OFFICE,

ADOLEH z. MAMPLE, OE GLEN Eoox, AND EDWIN :aUssELL HAEEALI., OE ENGLEWOOD, NEW JERSEY, AssIeNOEs` To THE 1 WESTERN UNION TELEGRAIH COMPANY, Or NEW YOEx, N. Y., A CORPORATION OF NEW YOEIL EAsTENING DEVICE EOE GUY EOPEs AND OTHER TENSIONING'MEMBEES.

- Application mea mirth 17, 1927. serial Nc, 176,071)- e the guy rods or anchorage used to brace poles, posts and other structures.

Among the objects of the invention are the provision of an improved end or head for post anchors which enables the bracing strand or cable to be fastened to` theguy rod asreadily as maybe done byr` providing the rod with an ordinary hook end,- the improvement bein such that the `disadvantages of eccentricity of stress, placed in an ordinary hook, are eliminated and `hence the extra wei ht of metal necessary togive an ordinary ook adequate strength an at the same time to provide a broad saddle for the guy rope, is not required; other improvements residing' in the provision of a novel form of anchor end wherein the major portion of the strain occurs as a shearin stress,

such small bending strains as may duced by the pull on the guy rope being in opposite directions so that they substantially counteract each other. A further ob'ect of our invention is to provide an anc oring head which permits the guy wire or` cable to be looped around the head or end, pulled up, fastened and cut off, 'thus Isaving thelabor of a preliminary out heretofore necessary in order to pass the guy through an eye of the usual form of anchor ro'dfand also climinating the wastage of guy wire or cable re"- sulting from the necessity of cuttin golffa portion of the end to the cable is fastened. 1

With these and other objects I in viewA ask `will be presently understood, the invention" will` now be particularly described in detail and i afterwards claimed, `reference i being made to the accompanying e drawings, wherein Figure 1 is a view showing the device as used in connection with a telegraph pole. Figure 2 is a face view of the head. Figure 3 is a side view of said head. Figure 4 is a rear view of the head. The invention is herershown as used in connection with a telegraph pole P and guy wire or cable G which has at its lower endv al loop Gs', ya clip C being used in ordinary manner to form this loop. This is connected to an anchor plate 11, t 1s being e prof Vmake a neat jo after y wire merely indicative of an suitable means for anchoring the lower en of the rod 10.

On the upper end of the rod 10 is thespecial arrangement of head forming the principal subject matter of this invention. It

will be seen, especially from Figure 3, that the `upper end of the rod 10 is offset at the portion 12. On this offset portion is formed a substantially triangular body 13 having the upper portion 14 of its rear face flat` tened and n with laterally extending thin` flanges or wings 15, which merge `into the central thickened portion by` easy curves, as at 16, to provide a groove which extends under the head, thereby forming a broad curved saddle for the loop of the guy rope or cable. e

lThelupperedges ofthe back faces ofthe flanges 15are offset from the center of the rod 10 to an extent substantially half the diameter of the gu G, to thereby bring the guy wire into axial alinement with the rod.

The body 13is provided with a downwardly7 extending finger 17 at its lower end, whic as" formed, is spaced from the rod 10` a dis-l tance at least equal to the diameter of the guy G, as indicated in dotted lines, so that the loop of the guy may be slipped over the head or body and pulled up` into the groove of the saddle. The rods are preferably made of malleable metal so that the finger 17 may be bent from the dotted line position 'shown in Figure 3 to the full line position by a blow of -a hammer, in order to prevent accidental disengagement of the loop from the head. i

With this construction it is obvious that it is not necessar to cutoff the material or guy wire from t e roll of wire or cable in order to thread it through an eye, since the guy strand or cable is simply looped around the curved saddle portion"12 and tensioned by means of the usual come-along or other suitable means. The clip G is then applied and the strand orcable cut olf close to the clip thus making only one cut necessa and eliminating all waste of strand or cab e.

Owing to the angular disposition of the offset part 12 and the head 13, the angular stresses tending to rotate the head are in opposite directions at the up er and lower ends of the head respective y and conse uently they counteract each other so that t ere is 4no effective tendency toward deforrnation of the head in either direction. The major strain on the head due to the pull of the rope or cable produces a shearing stress in the planeof the groove or saddle where the sectional. area of the metal is greatest. i

Our construction overcomes the objection to an eyeI which requires the rope tobe threaded there-through andrprovides all the advantages of a hook, yet without the weaknesses of a hook which requires a very greatincrease, in the thickness of metal in the hook tov withstand the stresses which constantly tend to bend the hook and to either disrupt the metal or bend it`into alinement with its support. Uur headv maintains the full strength of the rod with only a very slight increase in the cross section of metal at the offset portion and the strains are reduced to a shearing stress which occurs along the greatest`cross-sectional area. Fi-

nally the pull on the guy wire or rope is` broughtinto alinement with the longitudinalaxis of the rod. The curved saddle afi# ixedto they side of the rod provides a broad .surface to receive the loop of the tension member. A

vWhile we-have shownourl guy anchor appliedto the bracing of a pole or post it will be evident that our anchoring head may be,

y applied; to many other uses, wherever a looped fastening` of any tension member is required for bracing or supportingV pur-V poses.

Having thus described the invent-ion,.what is claimed as,newis:

1. In a fasteningdevice yfor guy ropesand other` tensioning members, a. rod having an offset portion at one end extendingangularly therefromand a flat head carried by said,

offset portion and merging therewith at its sides byeasy curves, said head having a relatively thiclrcentral portion` having a-l periph# eral grooved part forminga Saddle for thelarly therefrom, and a fiat head carried saidY offset portion and merging therewit which the loop is adapted to liest, the upper edges of the rear faces of the fianges terminating ata distance laterally oifsetfrom the axis of the rod substantially equal to onehalf the diameter ofthe guy rope, whereby the longitudinal axis of the rope is brought intovalinement with the axis ot' t-he rod.

3. In afastening device vfor guy ropes and othei tensioningmembers, a guy rod having an offset' portion' at one endextending angularly therefrom, and a head carried by said offset portion havin arelatively thick' central portion provide with a` peripheral groovedipart forming a saddle furthe loop of the guy rope and having relatively thin lateral flanges against the rear faces of which thefloopis adapted to bear, said head having, afinger projecting downwardly from its lower part at a distance from the rod at least equalto the diameter of the guy rope'.

r4. In a fastening device for guy ropes and other tensioningrmembers, a uy rod having anoflset portion at one en extending an` gularly therefrom, and a head carried by saidoifset portion havi arelativel thick central portion,V and mer gtherewit 1 at its sides by easy curves, said lhead having a relatively thickVV central (portion provided with a peripheral groove part forming a saddle for the loop of Athe guy ropev and having relatively thin' lateral rear faces of which the loop is adapted to bear,the upper'edges ofthe rear faces of the fianges, terminatingat a distance lateral- 1y v'offset from the axis of4 the Arod substan tiallyfequalto-onehalfthe diameter of the guy rope whereby thel guy-rope and the rod are alined,said head having albendable iinger projectingfrom its lower part ata dis` tancefromrthelrod at least equal tothe diameter of the guy rope,`whereby the finger may be Vbent. inwardly beneath the rope to hold` the loop from detachment.

In `testimony whereofwe ax our signah tures.`

ADOLI Z. MAMPLE. EDWIN HRRALL.

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