US1789342A

US1789342A - Globe or shade holder

Info

Publication number: US1789342A
Application number: US440924A
Authority: US
Inventors: Nicola C Petrillo
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-04-02
Filing date: 1930-04-02
Publication date: 1931-01-20
Anticipated expiration: 1948-01-20

Description

N. c. PETRILLO 1,789,342

GLOBE OR SHADE HOLDER Jan. 20, 1931;

Filed April 2. 1930 //v V: NTO P: lV/COLA 6'. PETRA .1. o.

I 5y Mwmaf 141- ro PM: )1

Patented Jan. 20, 1931 I urrsn TATES 4 NICOLA o. rnTRILLo, or ST. ];|OU1S,MISS0UR-I" GLOBE on snnnnnonnnn 7 Application filed April' 2,

The object of my invention is to make a globe or shade holder to be used principallyfor large globesor shades, such as are used for street lights in cities. A further object is to make a globe or shade holder, which will j prevent the breakage that now occurs in these globes or shades, which are made of glass or other fragile material. These globes are in most instances large and expensive. The breakage loss is very great in actual use. The globe or shade must be removed at reguglobe and in order to replace burnt out elec tric lightbulbs. 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 supment with the globe or shade.

port or base andcome into frictional engage- The globe or shade must be held rigid in the base. This requires that the screws be drawn tightly against the globe or shade. In practice the screws although made or" brassor other nonrusting material corrode, so that they may not be turned with the fingers. In this condition it requires a pair of pliers to turn the screws. When the pliers are used for this purpose, it is not possible to determine when the screws are suiiiciently tight. turns of any of the screws after the screw is in positive contact with the shade or globe will crack the lower flange of the globe or shade, after which the globe or shade mustbe replaced because it is unsafe to use such a globe or shade having such a fracture. At the fracture, the globe subsequently breaks and the globe falls from its base. The specific purpose of my invention is to prevent the cracking of the lower flange of the globe or shade by introducing an annular disc against which the tightening screws come in contact. By this means in the ordinary tightening of the screws, the flange of the globe or shade will not be broken. This prevents the cracking of the globe due to unequaled strains to which the lower flange of the globe is subjected when the screws come in contact with Y the globe or shade. Furthermore, I have provided means for adjusting the length of the globe or shade.

One or two 1930. seri no; 440,924.

the split to take care of the slight vari ation in'the' diameter of the" lower flange of A more specific objectof my invention is to make this split ring as cheaply .a's possible. To make the locking means at the free ends as elemental as possible; toprovide means for adjusting the length ofthe split ring by sim ply sliding a screw secured to onefree end in I j the slot of a finger "securedto the other free.

-end.' V lar intervals in order to clean the shade or -My device may be made of few-and simple parts that lend themselves readily tom'ulti-' ple production. lVith' these and-, other objects in View my invention has relationto certain novel features of construction and arrangement of parts as will be hereinafter more'fully described, pointed out in the claims and illustrated in the drawing in" which 1 Fig. 1 is afragmental frontelevation of a globe or shade with my support therefor. V Fig. 2 isfa sectional'plan view on the line 22 ofFig. 1..

Fig. 3 is a fragmental sectionallelevation on thedine 3.3 of 2 Fig. dis a plan view ofthe' split ring used Y in my device partly in section-in its openpoflange 9] and the outer wall 10 forming the annular recessll. t

;N11Il '161&l 12 designates an annular depending flangepositioned below the annular recess 11. The base 'or support 8 is secured to a pole, not shown, by means of the annular depending flange 12. On the lower portion of the globe or shade 7 is formed the conventional annular flange 13, which rests in the annular recess 11. Radial tapped holes 14 are formed on the outer wall 10. In these holes are placed in threaded engage- Jon ment the screws 15. In Fig 2, four such screws are shown. N umeral-16idesignates a split ring of substantially the same diameter as the annular flange 13. The split ring 16 is formed in two parts secured together by means of the connecting plates 17 one end of eachplatebeing securedto one free end of the splitring 16 by means of the screws 18 and the other end of the connecting plates 17 being secured to'the adj acentfreeend of the split ring 16 by means of one Qf-the screws 18. In order to make the split ring 16 adjustable in length, one of the connecting u plates 17 has the slot'19 cut therein. One of the screws 18 is in' sliding engagement inthe slot 19. It will be seen that in securing the split ring 16'initially to the globe'l', that the split ring must be opened at two places.

When it is positioned on theglobe', however all theadjusting or the circumference'of the split ring 16 is accomplished by sliding one I I of the screws 18. in the slot 19.v When the proper position is secured the screw 18 in the slot 19 is screwed tightly.

lVhen. the split ring 16 is placed in the annular flange 13 of the globe 7 as shown in Fig. 3,'the screws 15 are tightened into the external circumferential slot 20 formed in the split ring 16. By this means there is nocontact between the screws 15 and the annular flange 13.

WhatIclaimisi 1, A split ring having two of its free ends positively secured together by a connecting plate and its other free ends secured together by a connecting plate, which is secured at one of its ends to'one of the free ends of said split ring and that is in sliding engagement on the other free end of said split ring and means for selectively securing said connecting plate on said other free end of said split ring.

2. A split ring, two of the free ends of said split ring being secured together by means of fastening one of said connecting plates to the adjacent ends of said split ring by means of said screws. one of said connecting lplates having a slot formed therein and beingpositively secured to one end of said split ring by means-of one of said screws, the other end of said connecting plate being in sliding engagement on the adjacent end of said split ring by means of having one of said screws secured" to the end of said split ring through the slot formed in one of said connecting plates. 7 In testimony whereof I afiiX my signature.

NICOLA c. PETRILLQ,

connecting plates, screws,