US1895647A - Fender iron - Google Patents

Description

Jan. 31,1933. w. L. BRQWN 1,895,647

Ma/MMX Patented Jan.` 31, 1933 t,

UNITED STATES PATENT; OFFICE WILLIAM L. BROWN, or PHILADELPnre, 'rennasvrlviuvrA y f rnnnnnffmolv Application led November 11,- 1931. SerialNm 574,31Qi.

the metal of the fender iron is so disposed as to be thicker at the central portion of the arch than at the sides of the arch and preferably the thickened central portion of the arch tapers gradually into the sides. of the arch. Again, preferably, the disposition of the metal should be such as to form what is in effect an inwardly projecting rib at the center of the arch, with tapered sections eX- tending outward from the rib with diminishing cross section, in which they merge with the base portions of the arch. This construc- -25 tion imparts to the fender iron qualities of a stitl' beam, as a result of which impacts against the fender iron are well distributedV over the surface to which it is secured, while at the same time the center of the arch against which impacts are most likely to occur is of so massive a construction as to resist effectually forces tending to dent it in and to deform the fender iron. At the same time the resilient character of the metal which I preferablyuse in the construction of my fender iron permits a certain amount of deformation in the arch at the moment of impact without resulting in a permanent deformation.

By sodistributing the metal in the arch 49 that the thickened central portion tapers gradually into the upper side portions of the arch, I materially strengthen the structure against impact stresses coming in a more or v less lateral direction against it while the eX- ternal arch form of the fender tends to guide lCTI any ondtting bodyy the center of. arch and thusftolessenriany'y impact strains' which tend to wrench thefenderiron away 1 I from the structure to whichitisattached.

lFor some applications't lis advantageous 5d to vprovide a-plurality of arch shapedlpro; jections constructed as described, which are advantageously spaced from! each other' by flat portions, adapted to rest against the structureto be protectedsand'to serve as a means 55 for securing the fender to the structure additional tothe outerflanges. j l

My inventionwill be bettery vunderstood Ias described in connection with thedrawing5in, which .y l n Figure lis a crosssectional view vofya feng der iron embodying my invention., 3

Figures 2-and3are `similar' cross sectional views of modifications offthe structure shown in F ig. l, which alsofully embody myinven- Figure t is a ross sectional view,--illustrat' ing a .construction inwhich a pluralityl of arch shaped yprojections are formed,4 spaced from each other by tlat portions-adapted'like 70 i the `lateral flanges to restaga'inst the-structuretobe protected..r 4 y In the drawing-.A, A indicate outwardly extending edgelflanges adaptedto rest upon an'dflbejattached tothe structureto be pro- 75 tected. B, Fig. 1, Bf", Fig.2, and B3,'Fig. ,3, represent an intermediate 'archfshaped vportion vof the fender iron, which, as shown in the different views,has''e'zrteriorlyy the form of a segment of a circular cylinderbutfwhich mayA vary in exterioroutline so long as :au general arch-shaped contour is maintained. iC, C,etc., indicates a'thickened top portion of the arch, preferablyy forming,ias shown, an inwardly projecting rib connected by gradually tapering sectionsD, D,which mergefinally intothe base' portions E,; E of the arch. The base portions ofthe. side walls Aof thev arch, as indicatedjat' E, E, etc., aremuch the fender iron is attached. It will also be obvious'that the `mass of themetal at the top of the arch adapts the fender ironto resist the tendency of impact strains to indent of the metal inthe upper p'art of the arch, as

shown, that' is, sc that the, thickened crown,

of the arch tapers gradually into theV side connected by intermediate tapered sections to the portions of the arch orming its base. 5. A fender iron as called for in claim l, having a plurality of arch-shaped intermedi-V ate portions.

. 6. A fenderironv as called for in claim 1, having .a plurality of arch-shaped intermedi; ate portions spaced fromeach other by flat portions adapted to lie in contact With thel structure to be protected.

WILLIAMV L. BROWN.

Vor collapse the arch and'that the disposition s.; l

walls,y will impart great Vstrength to resist 1 y.

the tendency of lateral impacts to distort or Y deform the fender iron.l `The arch shape of the portionof the fender ironiwhich'is subjected to impact blows serves to direct any contacting bodyftoward the. center and strongest part ofthe arch and `thus to diminish blows tending to Wrench the fenderiron from the structure to which it is attached, while theV tapered -cross sectionof the side Walls of the arch'V makes available the resilient qualitiesofthe ferrousfalloy, whichV I preferably employ, enabling the archof the fender iron to yield lslightly Vtov deiormingv strainsfwithout bringing about permanent s deformation.

In Fig. 4 I have illustrated a construction y in which the fender iron is'formed with two archi-shaped projections, each similar'in'construction to that shown in Fig.1,the arches beingspa'ced by a flat portion A1 adapted to rest against the structure to be protected and to serve as do the flanges A, A as a means of securing the fender iron to the structure.

' Having now described myinvention, what -I claim as new and desire to secure" by Letters Patent,is:

'IL'A fender iron of a bendable ferrous'aln loy having lateral flanges adapted to'contact with the structure to be protected, andV an 4intermediate arch-shaped portion"extending from end to end V`of the 'fenderiron and-Which in cross sectionV is thicker at the top of the arch than at the lateralA sides connecting the upper portion of the` arch with the vlateral flanges of the fender iron. i

2. A fender iron as called for in claimll,

lwhih lha fenderjironis made upy of a re- Y silient ferrous alloy. f

3. A fender iron as called for in'claim 1,

in which the thickened central portion of the arch`- ltapers Vgradually in thickness as ity merges into the side walls of the arch.

Vin which the metal forming the lupper?V p0rtion of the'arch is so disposed as toform Aan inwardly proj ectingrb .at the top of the arch f ,4. A fenderiron as called V:tor in clairnrl, Y

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