US1871023A - Street lamp cable securing device - Google Patents

Description

Aug. 9, 1932. o. ANKLAM STREET. LAMP CABLE SECURING DEVAICE Filed Feb. l, 1932 I9, such cables.

Patented Aug. 9, 1932 UNITED sra-res GTTO ANKLAlVL F MINNEAPOLIS, MINNESOTA STREET LAMP` CABLE "snotrnnve nnvronv Appliauoamea February 1,l 1932. Serin No. 590,148.

Y ,This invention relates to devices for securing the `cables from which street lamps are hung to such supports as posts, to prevent unauthorized persons from meddling with It is now the common practice to support street lamps from posts and similar supports by means; of cables which run over sheaves f carriedv by the supports,` A street lamp is Q attached to one endV of such a cable to'beV raised or lowered therebyandthe other enduof the cable is attached to the post or other sup- Y port. To lower the lamp, it is necessary to release the last mentioned or operating.A end i w of the cable `from 'its support. Mischievous boysV and other unauthorized persons have caused considerable annoyance and eXp/ense to power companies and other owners of such Y street lamps by releasingthe operating ends of such cables from their supports and allow- 'ing the lamps to drop to loweredposition. It is the purpose of this invention to pro.-

vide novel and Aimproved means for attaching the operating end of such a cable as above Y described to a support, such as a post,l to Yprevent unauthorized persons from releasing the said end of the cable yfromsuchV a support butpermitting authorized persons to, at times, release the said end of thercable from the .3G support. i

ing an embodiment of the invention in use for Al securing the operating end of astreet lamp cable to a post; Y Y g Y Fig. 2 is a view in front elevation of the r Y securing device shown in Fig. 1;

Fig. 3 isa horizontal section taken on the Y. line 3 8 of 2,'asindicated by the arrows;

,Fig i is a vertical section taken onthe line- 4-4 of Fig.` 2, as indicated bv the arrows, and p showing the device applied to apost, certain of the parts being shown in oneposition in `full lines andin another-'position liny dotted lines ;k and Fig. 5 is aview illustrating a key that may be used in connection with the device.

lReferring to the drawing, there is illustrated aV lamp post 6 having secured iadjacent its upper end thereto an outwardly pro-ll jectlngjarm 7v supported by a cable 8. A ,sheave v9 is mounted on post6 adjacent arm 7, while another sheave 10 is mountedat the outer endof the arm. A-cable 11 runs over v the two sheaves 9 and 10 and the upper endof this cable is connected to aA street lamp '12.

LThe lower end of the cable 11 is adapted to .a

be releasably attached as to the postl 6 and by releasing this lower end vof the cable from the post, it will be seen that thelamp 12 may be loweredfor inspectionor repair, whereupon the 4lamp can be againraised toits op-` erative position.

f `To releasably secure the lower end of a cable, such 1as the cable 11, to a support such as the post 6, I provide'in accordance with the invention, a block 13 of greater lengthv than width. This block 13 has a rectangular boss 13a which projects outwardlyjbeyond the main portion ofthe outer surface of the block and a tapped opening 13?) is formed in A "therblock .and this tapped opening extends centrally'throughv the boss 13a. Block 13 is securelyvfixed in place on post 6 usually .five orfjsiX feet from the' ground, as by means 0f spikes 14 which run through upper and lower openings in the block18, and have heads, the outer surfaces of which are disposed inwardly from the outer surface of boss 13a. A plate 15 of a width approximating the` greatestfwidth of block 131 and of considerably greater length than the block 13 overlies this block13 and has an elongated aperture latherein within which `boss 13a-and the heads of spikes 14.12115.- When the plate 15 overlies the block 13,'the sidesof the boss 13a strike the plate-to preventturning movement 'of the plate relative to theblock. Plate 15 has inwardly extending flanges yat its sides and upperendaboveblock 13 toform ahousing 15?) having an open inner side; A cable opent ing is cut through the end flange of housing 15]) to permit insertion ofthe lowel1 'ld" boss, bears against the :cutersurtace.osthe 7:

stud 16`carrying a washer 17 and screwthreaded within the housing b. An opening 15d is provided in the lower end of plate 15 to receivea .hookfnot .illustnated,) .Abar

18 of a length .corresponding to V"the jlengthfof the aperturela and ,having a central outwardly projecting apertured and recessed boss 13a and normally projects transversely 'across plate 15. This bar l158 'has inturnedlugs 18a atts twoends between whichV the lplate 15l will be received when the `bar`i`s extended `transversely of the plate andis disposed flush against the outer surface of theV bioss 13a. A

. .stud ..19 projects .through :the aperture .ot the bar 18,V1 .and is screwfthreaded within ,the .tapped opening .13b of block 13 .and `thisfstud v has `an enlarged lcylindrical head 'which .nor-

.to Athree, parts 13,515 and T18. YAs the heads fof Ainallyfits within the .recess .of .'the .boss :of -bar 18. A .polygonal-shaped socket .19a ,is proyvided in zthe outer surface Aofthe stud .1Q-to Vreceive-one .endota key20 also=of polygonal- Y ...shape in cross section.

-Under normal rcumstances-.to holdthe i loweriendof .thecable11securelyfattachedto ,the .post 6 and to .prevent .,detachmentfof the saine from fthe post ,by .unauthorized `persons,

.the variouspartswilhbe positionedas shown in Figs. .-1,23andfin (full lines Fig. 1l. When thepartsareginthi-s position, the post closes ,the rear side of the .housing 15b rand no Yacv cess may behad to the lowerend-of thecable 11. The lugs 18a-'of the-bar 18;,togetherwvith ithe boss 13a prevent .removalof the ,plate 15. from its position overlying the block`13 and A.also [prevent relative rotation-.between the the-spikes vll -are disposed within the aperture :15a of the plate 15;, access .to the spikes Vfor removalof the same cannotfbe .As the cylindricalhead of -the stud 19 tits tightly within fthe recessot theJboss-ofbar 18,.it.w1ll

"be impossible to loosen this ,stud uinless. the

peculiar shaped-key 21 is employed. It v:is :thus practically impossible for unauthorized persons @to release the tlower end of the cable -1`1 trom the post 6. j .l

When authorized per-sonsdesire -to .lower .thelamp 12 `for repair, a key such as the key '20, -will .be -rst inserted within the-socket 19a i of Vstud 19 whereupon 'the 4stud will beun- -screwed A'for a short 'distance-,or :until .the `inner ends of the lugs d8a .may -beswung over theouter faceof platel. The bar 187.1nay

` thenfbeswung-through 'QOOfrom its position shownuin full lines4 Fig. 4 to -itsjpositio'n shown in dotted lines Figfli.. Plate 15 may *then `lbe swung outwardlyto the dotted line :position shown ".inFi'gffl :and as this -occurs, ibar`18 will be .carri ed through lthe, aperture Y15a offfthe plate. A .hook to'w'hichk arope is l attached may now be 'connected lwi-th the plate disposed against said :boss lto project vacross 15 through the hook opening 15d, whereupon the lamp 12 may be lowered `for adjustment,

inspection or repair. It will be seen that the lower, end of the cable may be readily reattached in position on the post 6 after the. lamp -12 has been again elevated to its original position,V Y

The Apresent fdevice vsimple )in lconstruction and in operation. It has beensuccessfully demonstrated in actual practice. :It `|will, iof -,oourse, .be understood that various changes may be made in the form, de- `tails,"arrangement'- and proportions of the Various `-parts without departing from the scope ofthe present invention. I

Whatis claimed V.is,:-r .Y j 1. .A device for s ecuringa cable to fa support, comprising a blockinoimted Lon :said support, said block having, a bossfformed thereon projecting outwardly ffro'mfits cuter face, a plate-overlying said block and'ha-vin'gv ,an aperture therein within which said boss is received, a` ybar bearing against said boss l and normally-.straddllng Y said plate, means at one-end'of said platefor securing'a'cable thereinsecuring said Ibarjto said 'lolo .Y A

Adevice orsecuring a cable oit a street Vlamjg') .to a' support, comprising a.;bloek. at-

tached `to' the support'and having an o u't- 95 ad i thereto, and a studfhav-inga 'key o, ening" ing at one end 'thereofwithinwhich'the'end 100 'of the cable is secured, al bar 'havingintu'rnedl i lugsat the yends .thereof spaced `rornea'ch VAother a distance corresponding to thewidth of said'Y plate, said bar beinga'dapted to be saidmember with said lugs one at `each side of said member and .a stud :having awvrenh receiving opening at. its vouter .end Vpassing through saidbar. and screw threaded within rthe boss ofsaid plate.` Y Y 1 j y .3. A device forsecuring a cable oi'astieet lamp to a support,jcomprising af'block secured to said support, said lblock having an outwardly proj ecting, boss thereon, a plate. fitting against saidlolock land, having an 'aper- `ture Itherein within'swhichsaid Aboss. yis received, .said plateV form'inga housing acent one end which-housing is openv at its inner side, sa'id lhousing having an aperture thereture within lsaid block. Y

4. The structure delined .inY claim .3, .said

in through .which a cable may extend, `means 1 20 Y. :har being recessedto snugly rreceiue .the :head @o of said stud and said stud having a key re-v ceiving socket in its head.

5. A device for securing a cable of a street lamp to a support comprising a block, said block having an outwardly projecting boss i thereon, spikes securing said block to said support, a plate overlying said block and having an aperture therein within which said boss and the heads of said spikes are received, means at one end of said plate for OTTO ANKLAM.

Images