US1923861A - Light - Google Patents

Description

Aug. 22, 1933.

B. S. FLORADAY LIGHT Filed Nov. 3, 1930 INVENTOR ATTORN EY/S Patented Aug. 22, 1933 I UNITED STATES Burton S. Floraday,

of Ohio LIGHT 7 Toledo, Ohio, assignor to The Data Company, Toledo, Ohio, a Corporation Application November 3, 1930. Serial No. 493,169 8 Claims. (o1. 240-4054) The invention relates to lights and refers more particularly to lights having bulbs adapted to be illuminated by electrical energy. One of the objects of the invention is to so construct the light that when it rests upon a support its'bulb will not ordinarily be illuminated, but when the light is removed from the support its bulb will be illuminated. Another object is to so construct the light that if desired its. bulb will be illuminated when the light rests upon the support. A further object is to sofconstruct the light that it forms a self-contained unit having the bulb, the source of electrical energy and the switch for controlling the flowof electrical energy to the bulb. These and other objects of the invention will be apparent from the following description, taken in connection with the accompanying drawing, in which Figure l is a side elevation, partly in section, of a light showing an embodiment of my invention; V

Figure 2 is a cross section on the line 2-2 of Figure 1.

I The light has the metallic base 1, the metallic tubular standard 2 and the dome 3, which latter is preferably formed of glass. The base is recessed at 4 and the standard is threaded into the top 5 of this base and. extends preferably axially upward therefrom. The dome 3 has the outwardly extending annular flange 6 which is clamped against the inwardly extending annular flange 7 at the upper end of the standard. This clamping'is accomplished by means of the sheet metal bulb socket 8 which has a force fit with the standard and which receives the base of the bulb 9. This bulb is located within the dome 3 and has one of its terminals in contact with the socket. I

"10 is'an electric battery within the standard 2 cells, the upper of which has its contact in engagement with the other terminal of the bulb 9. This battery is yieldably forced toward the bulb by means of the metal coil spring 11 hav-' rests upon and is' secured to the intermediate metal plate 13 which has the upwardly extending tongues 14 for clamping the base of the washer to the plateand the downwardly extending tongue 15 for resting upon the metallic bottom plate 16. These downwardly extending tween the bulb and the battery I have. provided" and formed in the presentinstance of two dry,

tongues 15 havetheir lower portions 1'? reduced in width and extending through and crimped over against the,bottom of the bottom plate 16, so that the shoulders at the sides of these reduced lower portions rest upon the bottom plate and support the tongues upon this plate. The bottom plate is fixedly secured to the lower side of the top 5 of the base by suitable means such as the integral rivets 18 die cast with the base.

For controlling the electrical connection be the following construction: 19 and 20 are respectively the stationary and movable contacts of a switch. The stationarycontact is formed of metal and has the base 21 whichis secured against the upper face of the washer 12 by the tongues 22 which extend through the central opening in this washer base and are crimped over against its lower face. The stationary con-- tact also has the upwardly extending resilient fingers 23 which near their upper ends are formed with the arcuate portions 24. The base 21 ofv the stationary contact engages the lower convolution of the coil: spring 11, which latter is clamped in place by' the struck-out tongues 22. The movable contact has the metal washer 25 atits upper end and the metal washer 26 at its lower end, these two Washers being separated bythe sleeve or bushing 27 formed of insulating material and being held incontact with the ends of this sleeve or bushing by the shouldered metal pin 28, which at its upper end is .headed or riveted over against the upper washer 25. The pin 28 has at its lower endthe extension 29 which slidably extends through the. bottom plate 16. The sleeve or bushing passes through the washer l2 and its length is such. that when the upper washer engages the con tact face formed by thebase 21 of the stationary contact the lower washer 26 is spaced above the bottom plate 16. 30 is a metal coil spring which is preferably spirally arranged sothat one convolution may. nest within another. .Thisv coil spring abuts the lower washer 26 and the plate 13 and yieldably forces the movable contact downwardly to normally hold its upp r washer against the basevof the stationary contact. a H With the parts in the position indicated in Figures l and 2, it will be seen that the bulb- 9 is electrically connected to the .battery 10 by reason of the battery contacting at its upper end with one terminator the bulbandcontact ing at its lower end with the coiltspring ll. which contacts with the base ofthe stationary. contact 19. This base is in contact with the 110 illuminated-when the light rests upon the supupper washer of the movable contact 20 and the upper washer is in contact with the shouldered pin 28, which in turn is in contact with the lower washer 26 engaging the spring 30. The spring 30 engages the plate 13, which contacts with'the bottom plate 16, the other termiinal of the bulb 9 contacts withthe bulb socket 8, which in turn contacts with the standard 2 and this standard is electrically connected to the'bottom plate 16 through the base 1,; It will A,

be seen that if the movable contact is longitudinally or axially adjusted to raise its upper washer 25 to a position intermediate the base and the arcuate finger portions of the stationary contact the electrical circuit is broken and that if this movable contact ismoved still further to engage its upper washer with the upper contact faces formed by the arcuate finger portions, the electrical circuit isagain made and at this time these fingers support this movable contact in this position.

The extension 29 of the shouldered pin 28 in the first mentioned position 01" the movable contact of the switch extends downwardly beyond the lower faces of the .pads 31 which are secured to the bottom of the base 1. The distance throughwhich this extension projects beyond the pads issuch that when the light is placed upon its support, such as a table or stand, the extension is engaged with this support and is moved upwardly thereby to raise the movable contact to an elevation .between the base and the arcuate finger portions of the stationary contact, at which time the electrical circuit is broken and the bulb is not illuminated. However, if it is jdesired to rest the light upon its support and at the same time to have the bulb illuminated, this is accomplished'by manually moving the extension' upwardly to force the upper washer of the movable contact past the arcuate finger portions of the stationary contact and'to' engage the uppercontact faces formed by these arcuate finger portions.

' It will thus be seen that -I; have provided a light which is'so constructed that when it rests upon a support its bulb will not ordinarily be illuminated. However, when "the light is re-' moved from its'support its'bulb will beautomatically illuminated. It will be further seen that the light is so constructedv that its bulb can be port.

What I claim as my invention is:

1. In a light, a bulb, a source of electrical energy; and an electrical connection between said bulb and source having a switch, said switch comprising a stationary contact having contact faces spacedfrom each other longitudinally of said stationary contact and a contact movable longitudinally of said stationarycontaet and having a contact "face engageable alternatively 'with said first mentioned contact faces and means automatically opertact intoengagement with one of the contact. faces on said stationary contact and upon resting the light on its support to efiect disengagement ergy; and

bulb and source having a switch, said switch able upon removing the light from its support for effecting movement of the movable conof the movable contact and latter contactifaces.

2; In a light, a bulb, a source of electrical enan electrical connection between said comprising a stationary contact having a base and fingers extending transversely of said base,

said base providing a contact face and said fingers providing a second contact face spaced longitudinally of said stationary contact from said base contact face, a movable contact engageable alternatively with said contact faces and means automatically operable for efiecting movement of said movable contact into and out of engagement with the base contact upon disturbing the position of the light relative to its support.

3. In a light, a standard adapted to contain an electric battery, a bulb carried by said standam, a switch for controlling the electrical connection of said bulb and battery, said switch comprising a stationary contact and a movable contact engageable with said stationary contact at spaced'points in their relative movement, and

a pin connected to said movable contact and depending ,therefrom and engageable with a support upon which the light may rest to hold said movable contact out of engagement with said stationary contact, said movable contact normally engaging said stationary contact upon removal of the light from the support and said pin being manually operable to engage said the light may-rest to move said movable con-:-

tact out of engagement with said last mentioned contact face and to a position longitudinally between said contact faces, said pin being manually l operable -to move said movable contact into engagement with the other of, said contact faces.

5. In a light, a standard adapted to contain an electric battery, a bulb carried by said standard, a switch for controlling the electrical connection of said bulb and battery, said switch comprising a stationary contact having a base and a resilient transversely extending portion, said base providing a contact face and ,said resilient transversely extending portion provid-' ing a second contact face spaced longitudinally of said stationary contact from said base contact face, and a movable contact engageable with said contact faces, means for normally retaining said movable contact in engagement with'said base contact face and a pin connected to said movable contact and engageable with .a support upon which the light may .rest'to move said movable contact out of engagement with said base contact face and to a position between said contact faces, said pin beingoperable to move said movable contact into engage-'- ment withsaid second contact face.

6.-.In a light, a casing, a base for said casing, a bulb,a. source of electrical energy, an electrical]connectionbetween said bulb and source having a switch, said switch comprising a stationary contact, a movable contact and a longitudinally movablemember for actuating said movable contact, spaced plates upon said base for guiding said actuating member, one of said plates supporting said stationary contact, and yieldable means between said plates acting upon said actuating member to normally move the same in one direction.

7. In a light, 'a bulb, a source of electrical energy, an electrical connection between said bulb and source having a switch, said switch comprising relatively movable contacts engageable with each other only at spaced points in their relative movement, means operable uponand source having a switch, said switch comprising relatively movable contacts engageable with each other only at spaced points in their relative movement, means for normally effecting relative movement of "the contacts into engagement with each other at one of said points, and means engageable with a support upon which the lightmay rest for holding said contacts out of engagement with each other at said lastmentioned point, said last-mentioned means be- 1 ing manually operable to relatively move the contacts into engagement with each other at the other of said points independent of the support.

BURTON S. FLORADAY.

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