US1765488A - Bridge structure - Google Patents

Description

June 24, 1930. P, E, HUNTER 1,765,488

BRIDGE STRUCTURE Filed April 50, 1928' Patented June 24, 1930 {UNITED .s'rA'rss earns 11 orrice 3 PERCY E. HUNTER, or rrr'rsnnnen, PENNSYLVANIA, Assrenon on ONE-HALF To" FRANK J. LANAHAN, or PETTSBURGI-I, PENNSYLVANIA BRIDGE STRUCTURE Application filed April 30,

a bridge railing structure of such form that theindividual' parts may be moreconveniently and cheaply made than those of the type heretofore employed. A

Another ob ect of my inventlon 1s to provide a ralling. structure ;.conta1n1ng panel members composed of parts which are indi I vidually of smaller dimension and lighter weight than those of older types, but the completed structure being of such form that is more effective than various older struc tures in withstanding impacts or shocks from moving vehicles, etc. I

Still another ob ect' of my invention is to simplify and improve generally the construc-' i g 11 and the'parts are rigidly clamped to- 16 on the upper:

tion and eifectivenessof bridge structures.

One form which my invention may take is shown in the accompanying'drawing,

wherein Figure 1 is a side elevational view of a portion of a bridge railing structure; Fig.

2 is a view taken on the line II 'II ofFig. 1; Fig. 3, is a view taken onthe line IIIIII of Fig. l; Fig. 4 is a view taken on theline IV-JV of Fig. 1; Fig. 5 is'a view taken on the line V-V ofFig. 2'; Fig. 6; is a View taken on the line VI-.-VI of Fig. 1; Fig. is a schematic plan viewoftwo panel mem-' bers of F ig. 1, showing relative positions occupied therebygln a cast ng mold,..andv Fig. 8 is a'modlfication showing another,

cross-sectional form of the intermediate rail of Figs. 1, 3 and 4e.

The railing structure main posts 10and intermediate; posts 11.

The endsof the bars 8 project slightly into the cap portions of posts :10 and are; thereby firmly supported against displacement. The

' bottom rails 9 are ofangular' form in cross section as shown more clearly'in Figs.- 3 and 4E, and their horizontal flanges are somewhat longer than their vertical flanges so vthatthe .end of the bolt. V I g Panel members 17 are suitably bolted to the flanges ofthefrails 18serveas strengthening includes top rails 8 and bottom rails 9 which are supported by 192s. Serial No. 273,874.

ries a plate 13 on its upper end that serves to I support intermediate portions of the top.

rails. At the lower portions of the posts 11 portions are cutout or omitted from the hori-.

zontal fianges of the bottomr'ails 9. The posts 10 are formed of upper and lower Y sections 10 and 10 that have webs which are 1 secured together by bolts 14, as shown more,

clearly in Figs. 5'and 6. This feature is claimed in my divisional application, Serial No. 402,073, filed Oct. 23, 1929. I

The intermediate posts 11 are composed of upper and lower sections 11-and11 that are secured together by a bolt 15 that eX-' tends through webs in the abutting ends of said sections 11 and 11 The upper end of the bolt 15 extends upwardly above the topof thepost 11? and through the plate 13 and a v collar 15 The'lower end of the bolt is in;

threaded engagement with the post section gether by means of the nut top rail 8 and bottom rail 9 as shown more clearly in Figs. 1 and 4:. These panels are Fig.3, the said flange being clamped in that tions ll an'd 11 as more clearly shown in positionby the lbolts, 15. The horizontal,

members to resist lateral thrusts. The ends and 10 inassembled relation and: are capable of withstandingihe severe impacts from mo'ving vehiclesor th-e like. The intermediate rail 18 not only serves to support the panelmembers 17 but, being disposedat the inner side of the railing structure and at a verti.

cally intermediate position, will also take the 1 direct impact of a vehicle huh, bumper, etc,

parts of the moldv cavity.

sectional forms than T-shape.

thus protecting the panels from damage. Furthermore, vehicles will usually strike the intermediate rail at such angle that they will be deflected in a direction generally longitudinally of the rail, thus preventing such sudden stopping of the vehicle that the railing structure is broken down.

In those cases where'no protection such as the intermediate rail 18 isprovided for the panels, the hub or other portion of a vehicle will catch against the panels thus breaking them out it they are not excessively heavy, or causing the wrecking of a vehicle if the panels are of sufficient weight and strength to withstand the shock. By my arrange- 1nent,thepanels may be considerably lightei=- than heretofore deemed necessary and the railing structure will nevertheless possess sufficient strength to withstand the blows to which it is frequently subjected.

i The rail 18 may be of various other cross- For example, it may be ofH section, as shown by the rail :18 of Fig. 8.

size that one man can handle them, whereas two men are ordinar ly required to handle a mold wherein a single piece panel is cast.

Again, as the panels. are rather thin, difilculty would be experienced in molding a full length panelasone piece, because the molten metal would not readily flow through all Various of those advantages above-enumerated, arising from the forming of each panel in two pieces result from the casting of the postslO and 11, each in two pieces. 'The lack of strength which would ordinarily be expected in a railing, structure made up of various relatively small parts, as above described, is avoided inmy'structure, by reason of the manner in which the various parts are vbolted and otherwise secured together.

I claim as my invention 1. Bailing. structure for} roadways, comprising posts,cupper and lower rails sup? ported by said posts, an intermediate rail of T form supported by said posts andhaving 7 its stein, flange disposedin azhorizontal plane and extendingrearwardlyof the railing,

' structure, and panel seach' composed'ofupper spectively.

andlower sections, the adjacent ends of the" panel sections being each secured to the rear side of one of the'head flangesof said intermediate [rail and their remoteends be ng secured to the upper and lower rails rc-.

2. Railing structure for roadways, comprising posts, upper and lower rails supported by said posts, an intermediate rail of T form supported bysaid posts and having its stein flange disposed in a horizontal plane and extending rearwardly of the railing structure, panels each composed of upper and lower sections, the adjacent ends of the panel sections being each secured to therear 7 side of one of the head flanges of said intermediate rail, and their remote ends being secured to the upper and lower rails respectively, and anintermediate post disposed between the first-named posts, the said intermediate post being composed of horizontally-divided sections cthat'are secured to the said stem flange.

3. Railing structure for roadways, comprising posts, 'upper and lower rails supported by said posts, an intermediate rail of T form supported by said posts and having its stem flange disposed in a horizo ntal'planef and extending rearwardly of the railing I structure, and panels each composedof upper and lower sections, the adjacentends of the panel sections being each secured to the rear side of oneof the head flanges of said intermediate rail and their'remote ends being.

secured to the rear sides of said upper and lower rails respectively. P

' 4. Railing structure for, roadways, com

prising posts, upper and lower rails support-1 ed by said posts, an intermediate rail of T form supported by said postsfand having its stem flange disposed in a horizontal plans and extending rearwardly of the railing structure,and panels eachcomposed ofupper and lower sections,the adjacent ends of the panel sections being in the form of laterallyspaced arms, and both arms being secured to one of the headflanges of the intermediate rail, and the remote ends of thepanels each being in the iormoi r a single arm, said ends being secured to theupper and lower rails respectively;

5. Railing structure prising posts, upper and lower rails supported by said posts, an intermediate rail of T form supported by said posts and having its stemflange disposed in a horizontal, plane for roadways, com-C 115 f vand extending rearwardly of the rail ng structure, and panels each composedotupper, I

and lower sections, the adjacent ends of the panel sections being each'secured to oneof the head flangesotsaid intermediate rail and their remote ends being securedto the upper andlower rails respectively, the lower endof the intermediate post being adapted to rest upon a supporting surfaceandi thevupper end thereof having connection with the upperrailh 6jRailing structure for roadways, coinprising posts, upper and lower rails supported by said posts, an intermediate rail of \T form supported by said posts and having its stem flange disposed in a horizontal plane, and panels each composed of upper and lower sections, the adjacent ends of the panel sections being each secured to one of the head between the first named rails and having engagement with said panel members, to afford lateral support therefor, the stem flange of the intermediate rail being disposed in a horizontal plane.

In testimony whereof I, the said PERCY E. HUNTER, have hereunto set my hand.

PERCY E. HUNTER.

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