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Publication numberUS1498176 A
Publication typeGrant
Publication dateJun 17, 1924
Filing dateMar 22, 1920
Priority dateMar 22, 1920
Publication numberUS 1498176 A, US 1498176A, US-A-1498176, US1498176 A, US1498176A
InventorsMaurice Lachman
Original AssigneeElectro Steel Products Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tapered metal pole
US 1498176 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

June 17, 1924.

M. LACHMAN 'PAPERED METAL POLE Filed March 22, 1920 UW/ENTOR M77 ur/ce Lac hm n 1 m A HORNE Y8 Patented June 17; 1924.




- Application filed March 22 1920. Serial No. 367,739.

To all whom it may concern.

Be it known that I, MAURICE LAOHMAN, a citizen of theUnited States, and a resident of New York, in the county of New 6 York and State of New York, have invented certain new and useful Improvements in Tapered Metal Poles, of which the following is a specification.

My present invention relates to the manu- 1 facture .of tapered meta-l telegraph, transmission and other poles and its object .isto simplify the method of manufacturing and.

the construction of such poles and thereby lower the cost of the finished article.

The invention relates more particularly to poles in which the body or main central portion consists of a web or plate having a flange at both edges of the said web inte al-therewith. v

he form of pole to which my invention more particularly relates may be otherwise stated to be, in its preferred form, of a form resemblingan -I-beam in cross-section with a web tapering from the base up or, in 25 other words, having a web of lessening width at sections of the pole made at different heights.

One of the special objects of my invention is to utilize for the construction of a pole of this character flanged structural shapes,

known commercially as flange and I-beams or plates usually made in a rolling mill and having the web part, as is well known, of substantially uniform width in such way that the metal constituting the web of said I-beam shall constitute the tapering web of the finished pole while the double flanges at'the edges of the I-beam shall constitute the double or other flanged edge or side of 40 said tapered pole. v

The invention consists in the method of manufacturing the pole as well as in the construction of the pole as hereinafter described and then specified in the claims.

In the accompanying drawings, Fig. 1 is a side elevation of a. length of rolled flanged section utilized in carrying out the invention.

Fig. 2 is an end view of the same.

Fig. 3 is a view similar to Fig. 1 after the section has been divided into two component parts.


Fig. 4 is a Side elevation of the finished the longitudinal edges may be employed.

In the drawings sucha section is indicated having a web 1 and flanges or Ts 2, 3 along each longitudinal edge. The size, proportions and weight of beam is determined upon according to the conditions required in the finished pole as will be obvious to those skilled in the art.

The beam is then separated into two' preferably duplicate longitudinal parts or members by a bias cut, indicated by the dotted lines 4, Fig. 1, through the web from one end of the beam to the other. This bias cut or severing of the parts is effected in any suitable manner. n

One of the parts is then reversed or upended with relation to the other part and the cut edges 4 of the webs 1 are brought together so that the wide and narrow ends of each part are at the same end of the finished pole and the webs are secured directly to one another at the cut edges. This re- \sults in a tapered pole with the joint between the parts running vertically and centrally through the web and in' which the web or body portion of the pole, tapered to make the tapering pole, consists essen tially of the web portlon of said I-beam.

as i and the sides or edges of the pole are flanged, said flanges consisting of the heads of said I -beams.

The edges 4 may be presented to each other and secured together in any desired manner: In the form shown in Figs. 4 and 5 one of the edges if offset and lapped over the other edge so that the two parts of the web lie" in substantially the same plane. The lappedv edges may then be riveted, spotwelded or joined in any suitable way.

If desired to lighten the pole, lessen the wind resistance or for' purposes of ornamentation, Openings 13 (indicated by dotted lines in Fig. 4) of any desired shape may be formed in the webs of each part or fications in the method of. securing the parts' consists'broadly in longitudinally dividing a rolled flanged section or I beam into two component parts by a bias out then reversing one of the parts and joining the webs.

of the two parts directly to one another in any suitable manner, and that many modidirectly to one another toform a flanged section consisting of two members only and tapering from one end to the other wherein the body or web of the pole consists of the web of the I-beamv andthe double flanges of said I-beam constitute flanged edges or sides of the pole integral with the web of said pole. v

2. A tapered metal telegraph or other pole comprising two duplicate flanged plates or members, the edgeof the web of each part running obliquely to the flange, and said parts being assembled with the cut edges of the webs meeting and secured directly to one another to form a tapered pole comprising two members only.

3. A tapered metal telegraph or other pole, consisting of two members only and comprising two flanged metal plates each havingits web or body part diminishing in width from end to end thereof and secured directly to one another with the narrower portions in apposition, the said web parts together constituting the web or body of the tapered pole and the flanges of said bars or'members integral with the web parts constituting the flanged edges or sides of the pole.

Signed at New York, in the county of New York and State of New York, this 19th day of March, A. D. 1920. v



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2454640 *Jun 30, 1945Nov 23, 1948Trail A Boat CompanyMast for marine craft
US2510867 *May 25, 1948Jun 6, 1950Danforth Richard SProcess for making anchors
US2762472 *Feb 8, 1952Sep 11, 1956Pittsburgh Des Moines CompanyHollow sheet metal panels and method of making the sections from which such panels are made
US2808296 *Nov 9, 1956Oct 1, 1957Stinson Mfg Co IncScaffold plank
US3123909 *Jun 13, 1960Mar 10, 1964 dorst
US3149598 *Nov 7, 1961Sep 22, 1964Rees Blow Pipe Mfg CoMethod of producing conical structures
US3263302 *May 7, 1965Aug 2, 1966Mc Graw Edison CoMethod of making a tapered structural member
US3276750 *Aug 10, 1962Oct 4, 1966Reynolds Metals CoRailing construction
US3365852 *Jun 20, 1966Jan 30, 1968Ronald J. PitilloStructural framing members
US4562950 *Apr 4, 1983Jan 7, 1986Oliver C. FullerMethod of forming tapered tubes
US4691891 *Sep 25, 1985Sep 8, 1987Robert DionneDevice for preventing unauthorized removal of portable objects
US6332515Sep 1, 2000Dec 25, 2001New York Air Brake Corp.Truck mounted brake beam
US6347447 *May 18, 2000Feb 19, 2002New York Air Brake CorporationMethod of manufacturing truck mounted brake beam
US8720153 *Jan 25, 2010May 13, 2014Keystone Tower Systems, Inc.Tapered spiral welded structure
US9475153Apr 8, 2014Oct 25, 2016Keystone Tower Systems, Inc.Tapered spiral welded structure
US20110179623 *Jan 25, 2010Jul 28, 2011Eric SmithTapered Spiral Welded Structure
U.S. Classification52/838, 29/897.33
International ClassificationE04H12/00, E04H12/08
Cooperative ClassificationE04H12/08
European ClassificationE04H12/08