|Publication number||US1630293 A|
|Publication date||May 31, 1927|
|Filing date||Oct 9, 1924|
|Priority date||Oct 9, 1924|
|Publication number||US 1630293 A, US 1630293A, US-A-1630293, US1630293 A, US1630293A|
|Inventors||Fish Lewin B|
|Original Assignee||American Telephone & Telegraph|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (5), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
-May 31,1927. I I .1.. B. FISH STE? PQR P oLEs v'Failed oct, 9, 1924 III .HNI
. I' ml" I III ,III IIII III A .I lIl I IIIII II" IIIIII :I II
uvvENTlole4 I removed. y .I I l wi This and further` objects of the invention 'Patented May si, 19257."
" e TnLnGnArir `fcoMrANY,"A oonro'nafrron or" 'NEW YORK."
y E STEP Foa Poniss.
r This invention relates to `'steps for vtelephone or other. poles, and more particularly to steps'of the detachable type.
One o ftlieobjecfts of the invention istlie provision of apole-step that lmay be readily inserted in and removed from a base-plate vwhich may .be permanently secured to a pole, and-to forni the base-plate Vso that it cannotbe usedby unauthorized persons for climbing Vthe pole when the pole-step is will be .apparent from the `following/"description, when considered in .connection with the' accompanying drawingiii which one embodiment thereof is illustrated.
In `the drawing, Figure 1 illustrates a ypole having `a baseJplate secured thereto,
f vspectively, provided at either' end of the y dimension and a number of these steps may. 1 V9i? with the detachable step in position; Fig. 2 is a front view of thebase-plate lying in a horizontal position ;.'Fi`g. 3 is a view of the step which is adapted to'pbe attacliably positioned intlie base-plate, and Fig. 11 is a` sectional view of the step taken on the Vline 4 4 of Fig. 3.
Referringfto the drawing, the numeral 5A indicates a pole'pivliicli 'is illustrated for. the purpose of showing the applicationv oftlie improved arrangement.. The base-plate 6 may be `permanently attached to the poleV 5 by nieansof bolts or screws andS, which pass through transverse holes 9 and 10 rebase-plate 6. The upper vertical portion 11 of the basefplate 6 rests flatly-against the surface of the pole 5 for a suiiicient distance to 4 perinittlie seating;- ofthe flat inner surface vof the head of the bolt or screw 7. The plate 6 is bent slightly atthis point so that, the portion 12 extends outwardly therefrom in a sloping direction .to a lateral shoulder, which projects Vhorizontally from the lower vertical portion 13. The portion 13 is formedsimilar tothe portion 11 of the plate 6, and likewise rests. flatly against the pole 5 for a sufficient` distance to permit the seating' of tlie flat surface of tlie head` of the bolt or screw 8. f
The portionV 12 of thel plate is provided Witli a transverse opening 14, which is substantially circular, and a longitudinal Vslot- 15 extends downwardly therefrom. The opening and slot are provided forl tliezre- Vception of the step 16, which isv adapted to be` detachably associated therewith. The i FISH, oF'MAPLEWoon, NEW JERSEY', Assistme rofAi/innioAN TELEPHONE ,l
step 16 is cylindrical in formfaiid `is pro? y vided with an H-sliaped 1 port-ion .atI vone end, which is. formed by the lcutaway .portionslA In the iapplicatioiijof the stepu16 tothe. l .base-plate 6, the end of tliestep; having the cutaway'portions is inserted inl the circular n Y y opening- 14, said end extending intoa chamber 1.8, Which-is lprovided betweenther'pole.
5 and-the declined portion 12 of the plate y, i
6. vlWhen the step .is/inserted a. sufficient distance, itis turned'fso l that ,its-cutaway' portions 17 are in aline-nient with the-edges ot' the slot 15', after Wliicli'the'stepjis pressed downwardly in .said slot'until one off-the 70;
rounded surface portions formed/between the cutaway portions 17. is seatedintlieiffi rounded portion at the bottom ofthe slot?? 15. `The Width lof the slot/.15 is vslightly greater than the; thickness ofthe portion".-
formedbetiveen tlielcu'taway portions 17 ,of` the stepllb so that tlie step .is readily per'- yinitted to enter and register securely vvithin" the'Y slot, in such manner yas not togbecome displacedi'vlien lsubjected tothe Weightof al person climbing the pole. Astlie portion 12 of the base-plate is.' declined, the step slightly tilted ,upvvardsgor at an inclined piositio'nvto prevent the linemans foot from slipping off the end of .the step and will afford perfect security tothe foot in climbing or While standing on the-step.
It will be seen that thestep is of small be readily carried about and useduponfdif- V16 when positioned-in thel slot [15 yWill be ferent poles. InV attaching the steps for the purpose ofl climbing poles, it is .onlynecessary to attach the step Vto ,the base-plate as previously described, andA in,v descending the' 7 v 95.
operator may Withdraw the steps from the permanently positioned base-plates. After.
the steps'l'iavev been removed` from ythe, basef platetliere Will be no'means afforded for the i climbing,` of vthe poles by unauthorized per.-
soiis,as"the foot Would slip off the base-plate in any attempt to rest it thereon.
- Itwill be obvious from'` the*foregoingV description that, by means of this invention, the carryingof ladders or the use of cliinbing' irons by linemen for lthe purpose .ofj
k o, reachingV the lowest permanent step' of a;` l
pole, which is usually some considerable dis#l y ,tance from tlie ground, Will be eliminated.
lli'at is claimed is:
' 1. The combination of a'bas'e-plate'adaptsVv I ed te permanent@ttacned to ed: noie and lnavivngja1 declined offsetcentral portion provided With'ekey-ho1e's10t, and a. cylindrical ste havinodetaehable inter-locking` ineens Y neel' one end/t9V 'e0-operate 'with said .kev-
vv holeslot lso that itjiney be aiixedl to Vsaid plate inra'njinclined vposition withV respect,
fedto be permanently :it'taehetto a geleend Y A' i havingaldeciined offset' VCent-i111 poitionpioividedwith mikey-holeS10t,'andzi cylindrical to the pole, `aid 'interlockingYineansrbeing vof a 'diainetei not exceedingurejthzitrreftfeziidg lstep.r
' 2; Y The eonibintin oi :i baise-'pirater dptstep edaipted tribe detaeiaioiy afifixedx to said Vplate-in' an'nclinedposition forgthe pin"- 'pose of climbing .said pole and removed tiieiei'iin Vupon descending; said pole, said step having tiansveiieelsnl-otg, at. right angles toit-s axis andvoneaehside thereo near one end 0i the StepV Said Slots being positioned te" n `form a neck portion'which registers with the keyhole "Sinti`
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|US6170842||Dec 23, 1998||Jan 9, 2001||Bad River, Inc.||Step system on vehicle bumper for accessing truck beds and methods of making and operating the step system|
|US6378822 *||Jan 9, 2001||Apr 30, 2002||Senior Industries, Inc.||Step assembly for hollow poles and the like|
|US6840526||Aug 5, 2002||Jan 11, 2005||Nissan Design America, Inc.||Bumper step|
|International Classification||E04H12/32, E04H12/00|