US2124487A - Double tapered steel post - Google Patents

Description

July 19, 1938. e. G. GREULICH DOUBLE TAPERED STEEL POST Filed July 25, 193.6

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Patented July 19, 1938 t UNITED STATES PATENT :oF-Ficiz DOUBLE TAPERED STEEL POST Gerald G. Greulich, Mount Lebanon, Pa.

Application July 25, 1936, Serial No. 92,659

4 Claims. (01. 189-23) This invention relates to steel posts generally from the point where the flanges coincide with and particularly to such posts for highway the side Walls l toward its opposite end to proguards. duce a relatively narrow cross-sectional area to The principal object of the invention is to make facilitate driving of the post in the ground withsuch a post in which the metal is distributed to out distortion of the metal and with a minimum provide the greatest stress resisting area at the disturbance to the soil. The Wide areas I3 of the critical point and also to secure a long life against lower section, being in contact with the ground,

corrosion. maintain the lateral soil pressures to a relatively Other objects and advantages will become aplow value under impact, while the piercing end parent as the description proceeds, in which: M of the section 4 is so shaped that it facilitates 10 Figure 1 is a side elevation of .the assembled post keeping the post in alignment during the driving showing the double thickness at the ground line, action and keeps the force required for penetra- Figure 2 is an elevational view at right angles tion of the soil to a minimum. t Figure 1, The upper section 2 is provided with the desired 1:, Figure 3 is a section on line III-III of Figure 1, bolt hole openings l5 for securing a cable (not in Figure 4 is a section on line IVIV of Figure 1, shown) on the post by means of any conventional Figure 5 is a section on line V-V of Figure 1, fastening device. I Figure 6 is a section on line VIVI of Figure 1, The complementary sections 2 and 3 have their Figure 7 is a detailed section showing the manends folded back upon said sections, as shown :0 ner of connecting the complementary sections toat l6 and I1, respectively, to provide a double J9 gether. thickness of metal adjacent the ground line. The In the drawing, the post comprises complefolded back portions of the upper and lower post mentary sections including an upper section 2, a sections are aligned to abut each other and are lower section 4 arranged in abutting relation to welded together at the point of abutment in any 51; form, at the ground line, an intermediate reconventional manner. The assembled post con- 1.: enforced section 5 having a double thickness of struction is then coated with zinc or the like metal. which makes the same highly impervious to cor- The upper section 2 comprises a conical memrosion at the ground line. ber gradually tapered throughout its length and While I have shown and described the preferred 2.) provided With flanges 3. These flanges 3 extend shape for. sections 2 and 4, it is to be clearly from the uppermost or free end of said section understood that the sections may be of other and taper toward the ground line to form an shapes; such as, for example, multi-sided conincreased flange width 6 above and below the structions in cross-section to produce a flat side ground line. for receiving the cable fastening means instead The lower section 4 comprises a cylindrically of the conical shape, as shown in the drawing, shaped cross-sectional member provided with The sections may be rectangular, hexagonal or a flanges 9 increasing in width at the ground line, five-sided construction. Said flan es tapering downwardly from the It is, therefore, apparent that a post constructground line to coincide with the side walls I!) ed in accordance with the present invention has 46 0f Said Section 4 at a point b w the ground ne, considerable advantages and design for use as a asclearly indicated in Figure 2 of the drawing. highway guard rail post, in that the greatest The complementary sections 2 and 4 of the post, metal area and greatest thickness is at the ground when abutted in end-to-end relationship with the line or point of greatest stress. Having the increas d fla e areas 5 d 9 at the ou d ne double thickness at the ground line assures longer and welded together as indicated at I2, produce life against corrosion. a uni ry structure h vin the greatest area and While I have shown and described one specific thickness of m a at the 'o line, thereby embodiment of the present invention, it will be assuring longer l e f t e post against corrosion understood that I do not wish to be limited exacta d Strains. The pp Section being eehieally ly thereto, since various modifications may be shaped, tapers toward its other end to pI'OdllCB a made without departing from the scope of the inr relatively smaller area at the top of the post where nti as defined by the following claims, the least area is needed. The top section 2 is I i large enough to accommodate all types of rail or 1. A steel post comprising an upper section, a cable fastenings and is easily visible. The lower lower section and a, ground engaging ection section being cylindrically p s cut away having a double thickness of metal formed by folding the ends of said sections back on themselves.

2. A steelpost comprising an upper section, a 7

selves each of said sections being substantially U-shaped in cross-section.

4. A steel post comprising an upper section, a

lower section and a ground engaging section having a double thickness of metal formed by folding the abutting ends of said sections back on themselves, said upper and lower sections being substantially U-shaped in cross-section and welded together at the point of abutment formed by the double thickness of metal.

GERALD G. GREULICH.

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