US1755837A - Globe or shade holder - Google Patents

Globe or shade holder Download PDF

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Publication number
US1755837A
US1755837A US367173A US36717329A US1755837A US 1755837 A US1755837 A US 1755837A US 367173 A US367173 A US 367173A US 36717329 A US36717329 A US 36717329A US 1755837 A US1755837 A US 1755837A
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United States
Prior art keywords
globe
shade
split ring
screws
shade holder
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Expired - Lifetime
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US367173A
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Nicola C Petrillo
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages

Definitions

  • the object of my invention is to in ake a globe or shade holder to be used principally for large globes or shades, such as are used for street lights in cities. ⁇ A further object.
  • the globe or shade must be removed at regular intervals in order toclean the shade or globe and in order to replace burnt out electric light bulbs.
  • the globes or shades are supported in supports, which in turn are secured to the top of posts.
  • the actual. securing means between the post and the globe or shade are screws, which pass through the support or base and come into frictional engagement with the globe or shade.
  • the globe cr shade must be held rigid in the base.v This requires that the screws be drawn tightly. againstthe globe or shade. In practice the screws althoughv made'of brass or other nonfrusting material corrode, so that they may knot be turned with the fingers. In this condition it requires a pair of pliers to turn the screws.
  • f ⁇ My device may be made of few and simple lparts that lend themselvesA readily to multi ⁇ le production. e
  • Y Fig. 1V is a L iragmental front elevationof a globe or shield with 'my support therefor.I
  • Fig. 2 is a sectional plan on theline ofFig;y 1. l ⁇ Y Y Fig. Sis-a fragmental vsectional elevation onthe line 3-3 of Fig. 2. p
  • Fig. 4 is a plan viewv of the annular disc used in my device ⁇ partly in section in itsopen
  • Fig. 5 is an enlargedfragmental plan of the means of connectingv the ends of the an-' nular disc yshown in Fig. 4C. y p
  • FIG. 6 is afragmental sectional elevation onthe line 6-6 of Fig. 5. j .Y
  • Numeral Y7 Vindicates the globelor shade.
  • Numeral 8 indicates the base or supportl for the globe 7.
  • rlhe base or support 8 is annu'- ⁇ lar in shape having the upper internal flange ⁇ 9 and the outer wall 10 forming the annular recess 11.
  • Numeral 12 designates an annular depending yflange positioned below the: an:y nularrecess 11.
  • the base orfsupport 8 is sel cured to arpole, not shown, by means of the yannular dependingflange 12.
  • On the lower portion ofthe globeor ⁇ shade ..7 is formed the 0 conventional annular ange 13, which irests v inthe vannular recess 11. Radial tapped holes 14 areformed. inthe outer wall 10.
  • Numeral 16 designates a split ring of substantially the same diameter lon the annular iange 13. ⁇ The split ring 16 is formed 17.
  • Numeral 18 designates the lock generally 19C for selectively securing the free ends of the split ring ltogether.
  • the lock 18 is formed as follows:
  • Numeral 19 designates a clasp in threaded enga-gement in one ofthe free ends of the split ring 16. By means of the threads on the claspl9, it maybe screwed in and out of the-end of ythe-split -ring 16. VNear the free end of the'clasp 19 is formed the notch 20. In the other free end of the split ring 16 is secured spring 21, by means of the rivet 22. The free end of the spring 21 is bent at right angles inwardly into the slot 23 formed in the split ring 16. The spring 21 is norinally in the position showninFigG7 that isili-engagement inthe notch'20 in the clasp 19.
  • V-l. ⁇ lt ⁇ irneral 24kV designates a cylindrical hole 'fornedgin the'end and extending circumferentially inthe Vsplit ring16. It will be seen that when the clasp 19 screwed, so that the notch 'faces outwardly and the clasp 19 is .inserted inthe cylindrical hole 24, that the ends vofthe split ring 16 will be locked together by reason of the notch 20 becoming enga-gedwth the'free end of the spring 21. In .order to disengage the free ends of the split ring 1 6, it becomes necessary to press the spring-'21'outwardly out of engagement with thenotch 20, Invorder to facilitate this operation the slot 25 is provided.

Description

April 22, 1930. N, c; PETRlLLQ n 1,755,837
GLOBE 0R SHADE HOLDER Filed May 31, 1929 "atented Apr. 22, y Q
UNirn i STAT s J NICOLA C. PETRLLO, OF ST. LOUISYMISSOUR 1 GLOBE on SHADE :trotinen` Application' inea May s1,
The object of my invention is to in ake a globe or shade holder to be used principally for large globes or shades, such as are used for street lights in cities.` A further object.
areinmost instances large and expensive. p
l The breakage loss is very great in actual use.
The globe or shade must be removed at regular intervals in order toclean the shade or globe and in order to replace burnt out electric light bulbs. The globes or shades are supported in supports, which in turn are secured to the top of posts. The actual. securing means between the post and the globe or shade are screws, which pass through the support or base and come into frictional engagement with the globe or shade. The globe cr shade must be held rigid in the base.v This requires that the screws be drawn tightly. againstthe globe or shade. In practice the screws althoughv made'of brass or other nonfrusting material corrode, so that they may knot be turned with the fingers. In this condition it requires a pair of pliers to turn the screws. When the pliers are used for n this purpose, it is not possible to determine when the screws are sufciently tight. One or two turns of any of the screws, after the screw is in positive contact withthe shade. or globe, will crack the lower flange ofthe globe or shade, after which the globe or shade must be replaced, because it is unsafe to use such a globe or shade having such a fracture. At ythe fracture, the globeV subsequently breaks and the globe falls from its base. The specific purpose of my invention is to prevent the cracking ofthe lower flangey of the globe or shade by introducing a split ring against which the tightening screws 'come in contact. By this means in the ordi-y nary tightening vof the screws, the flange of the globe or shade will not be broken. Furthermore by my construction the pressurey on the globe at its lower flange is uniform over its entire periphery. This prevents the cracking .of the'V globe due to unequaled 50 strains to which the lower flange ofthe globe position.
in two` parts secured together by the hinge 1929. Serial N o. v367,1-732 is subjected when the screws rcomein. direct contact'withthe globepor shade.l Further- Y more l have provided'lmeans for adjustingk the length ofthe split ring to take care of Athe slight variation in the diameterof the lower flange of the`globe or shield.
f `My device may be made of few and simple lparts that lend themselvesA readily to multi` le production. e
llffiththese and other objects inrview'my invention has Arelation to certain novel features of construction and arrangement fof parts as willbehereinafter more fully del Y. i
scribed, pointed out in the claim and illustrated in the drawing, in which- Y Fig. 1V is a L iragmental front elevationof a globe or shield with 'my support therefor.I
' f. Fig. 2 is a sectional plan on theline ofFig;y 1. l` Y Y Fig. Sis-a fragmental vsectional elevation onthe line 3-3 of Fig. 2. p
Fig. 4 is a plan viewv of the annular disc used in my device `partly in section in itsopen Fig. 5 is an enlargedfragmental plan of the means of connectingv the ends of the an-' nular disc yshown in Fig. 4C. y p
' lFig. 6 is afragmental sectional elevation onthe line 6-6 of Fig. 5. j .Y
Numeral Y7 Vindicates the globelor shade. Numeral 8 indicates the base or supportl for the globe 7. rlhe base or support 8 is annu'-` lar in shape having the upper internal flange` 9 and the outer wall 10 forming the annular recess 11.`v Numeral 12 designates an annular depending yflange positioned below the: an:y nularrecess 11. `The base orfsupport 8 is sel cured to arpole, not shown, by means of the yannular dependingflange 12. On the lower portion ofthe globeor` shade ..7 is formed the 0 conventional annular ange 13, which irests v inthe vannular recess 11. Radial tapped holes 14 areformed. inthe outer wall 10. In these holes are placed in threaded engagement the screwsl. In'Fig. '2, four such screws are 95' shown. Numeral 16 designates a split ring of substantially the same diameter lon the annular iange 13.` The split ring 16 is formed 17. Numeral 18 designates the lock generally 19C for selectively securing the free ends of the split ring ltogether. The lock 18 is formed as follows:
c Numeral 19 designates a clasp in threaded enga-gement in one ofthe free ends of the split ring 16. By means of the threads on the claspl9, it maybe screwed in and out of the-end of ythe-split -ring 16. VNear the free end of the'clasp 19 is formed the notch 20. In the other free end of the split ring 16 is secured spring 21, by means of the rivet 22. The free end of the spring 21 is bent at right angles inwardly into the slot 23 formed in the split ring 16. The spring 21 is norinally in the position showninFigG7 that isili-engagement inthe notch'20 in the clasp 19. V-l.\lt`irneral 24kV designates a cylindrical hole 'fornedgin the'end and extending circumferentially inthe Vsplit ring16. It will be seen that when the clasp 19 screwed, so that the notch 'faces outwardly and the clasp 19 is .inserted inthe cylindrical hole 24, that the ends vofthe split ring 16 will be locked together by reason of the notch 20 becoming enga-gedwth the'free end of the spring 21. In .order to disengage the free ends of the split ring 1 6, it becomes necessary to press the spring-'21'outwardly out of engagement with thenotch 20, Invorder to facilitate this operation the slot 25 is provided. When the split ring 16 is placed in the Vannular flange 13 of the globe 7 as shown in Eig,y 3,thescrews 15 are tightened into the external circumferential slot 26 formed in the lf split Aring 16. By this means there is no contact between the screwsl `and the annular flange 13, the contact being between the split rin-g 16 and the annular flange 13.
What I claim and mean to secure by LettersPatentis c Y YAsplitring `hingedly secured together at two of its free ends and having a locking deviceysecured at its other `two free ends, said lockingl device comprising a spring secured tosaid split ring and having its free end normallyy penetrating into a slot in said split ring, formed in' the same end of the split ring in communication with the slot formed in said sp-litfring, a clasp in threadedengagement Y int-the other'free end of said split ring', said 'n clasp: having a notch formed at its free end fori passage into the cylindrical hole in the other free end of said split ring and for selectiveengagement with thefree end of said spring. p Y
\ In testimony whereof I aix my signature. 5 NICOLA C. PETRILLO.
a V:circumferential cylindrical hole j
US367173A 1929-05-31 1929-05-31 Globe or shade holder Expired - Lifetime US1755837A (en)

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