US739973A

US739973A - Electric-light mounting.

Info

Publication number: US739973A
Application number: US9379102A
Authority: US
Inventors: Samuel H Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-02-12
Filing date: 1902-02-12
Publication date: 1903-09-29
Anticipated expiration: 1920-09-29

Description

PATENTED SEPT. 29, 1903.

S. H. ANDERSON. ELECTRIC LIGHT MOUNTING. Afrmouion rum FEB. 12, 1902.

N0 MODEL.

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QPMZFW UNITED STATES latented September 29, 1903.

PATENT OFFIC ELECTRIC-L1G HT Mou'NTme.

SPECIFICATION forming part of Letters Patent 116,739,973, dated September 29., 1903. Application 516.1 February 12,1902. Serial No. 95.791. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL H. ANDERSON, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California,'have invented a new and useful Electric-Light Mounting, of which the following is a specification.

An object of this invention is to provide for electric-arc lamps a mounting adapted for use in railway and tram cars and other conveyances, as well as elsewhere, which can be quickly and readily attached to and detached from its support without the use of screws and without connecting or disconnecting any wires and also without turning or lowering the lamp after it is brought into contact, thus insuring perfect alinement and firm retention of the lamp in position.

Another object of the invention is to provide spring-controlled devices for holding the lamp in position independent of the springcontrolled contact device, so that the strain of holding the lamp in position is not brought on the electrical contact devices.

A further object is'to make provision for readily mounting, trimming, and repairing electric-arc lamps.

In carrying out this invention in its preferred form means are provided whereby the globe will be firmly held in position and will be allowed lateral play for the purpose of alining the same with the upper carbon, and

provision is also made for readily attaching and detaching the holder for the lower carbon and globe with and from the frame which carries the upper carbon, all of the detachable portions being positively held together.

-In order that an arc-lamp may be satisfactorily employed for lighting railway or tram cars or other vehicles, it is desirable that the.

same shall be positively and rigidly connected with an overhead support, that the globe shall be firmly supported by the frame, so

that there will be no looseness or rattling of position. All of these conditions are pro vided for in this invention by means of springcontrolled connections and contacts throughout, said connections being constructed to allow ready attaching and detaching of the parts for the purpose stated.

This novel lamp-mounting is not limited to use in ears and other vehicles, but is especially adapted for the same owing to the reasons stated.

This invention may be embodied in various forms, and in the accompanying drawings I have illustrated the form which I deem preferable for carrying out the principle thereof.

Figure I is an axial section on line I I, Figs. II, III, and IV, showing this invention furnished with a lamp and fastened to a ceiling or other overhead support. The magnet-winding of the lamp is shownbroken, and the carbons are shown intact. Fig. II is an axial section on line II II, Figs. I, III, and IV. Fig.

III is a plan of the mounting detached. Line III III, Figs. I and II, indicates the plane of this view. Fig. IV is a View looking up from line-IV IV, Figs. I and II. Fig. V is'a plan section on line V V, Figs. I and II. Fig. VI is a detail of the preferred form of springcontrolled means for making the forcible connection between the supporting portion and the detachablelamp-mechanism-carryingpor- .tion or frame.

aportion being broken away to expose the spring-band. Fig. XIis a fragmental elevation further illustrating the globe-holder.

1 designates a supporting portion constructed to be fastened by screwsfz or other suitable means to the ceiling or other overhead or elevated support 3.

4 designates in a general way a detachable frame portion constructed with a detachable lower-carbon holder, which is designated in a general way by the character 5.

G designates in a general way spring-controlled attachments for detachably connecting the said portions 1 and 4 together.

7 designates in a general way spring-controlled attachments for detachably connecting the lower-carbon holder with the main body 8 of the detachable portion 4.

51 designates a globe-holder carried cross-bar t of the frame.

0 designates a globeretainer furnished with an inward projection 10 and detachably connected with the globe-holder 51 by suitable means, as indicated bythe pins 52in the bent slots 91. The globe 11 is furnished with a neck 12, enlarged at its lower end, and a spring-band 13 encircles the neck above the enlargement and is engaged by the projection 10 of the retainer and is thereby pressed against the downwardly-expanding portion of the globe-neck when the retainer 9 is fastened in place on said globe-holder 51. The lower wall of the slot J1 is furnished with a notch 92 at its inner end to seat the pin 52 when the retainer 9 is turned into position for that purpose. The spring 13 lifts the retainer 5) thereby to bring the notch to the pin-seating position.

Preferably the spring-band 13 is a coil of wire, the ends of which are fastened together by suitable means, as indicated by the hooks 1-1 in Fig. X, and is of less diameter than the chamber of the retainer 9, so that it can be adjusted laterally therein. The neck of the globe plays laterally in the retainer.

15 designates in a general way the springcontrolled contact device which is carried by the supporting portion 1. One of these devices is connected with the positive and the other with the negative side of the line connection It. Said contacts may comprise a socket a, fastened by screws 1) or other suitable means to the supporting portion 1 and furnished with an internal shoulder c, a follower d, furnished with a stem 6, smaller than the main body of the follower and wholly chambered within the socket a, a spring f, around the stem 6, inside the socket between the main body of the follower and the shoulder c, and a screw g, screwed into the inner end of the stem to engage the shoulder o. By this construction the device is easily asby the 'sembled, and the contact-follower d plays freely back and forth in the socket a and is normally held pressed out by the spring f, which will yield to pressure when the follower (Z comes into contact with the contact point, plate, or terminal 7t of the detachable frame portion 4:, which carries the lamp mechanism.

1 designates insulation between the contact plates or terminals 71 and the frame portion a of the mounting.

j+ andj designate the electrical connections between the terminals h+ and 71.- and the positive and negative carbons, respectively.

711+ and 7tdesignate the two terminals of the line connection with which the upper porcatch member operated by a spring 12, which 7 is carried by a socket 0 in the supporting portion 1.

p designates a slot in the lamp-frame portion 4, throughwhich the head q of the catch may pass. 0' designates a notch in-said por tion 4, into which the head may catch after the same has passed through the slot and been turned part way around.

To attach the lamp to the supporting portion 1, the attendant will bring the portion 4 into position below the portion 1 and will then push the portion 4 up into place, with the heads (1 of the catch members passed through the slots; Then he will grasp the heads (1 and draw them downward through the slots against the pressure of the springs '21 and will then rotate them quarterway around to bring them. into the notches r and will then release the heads, thus allowing the spring at to force the portion 4 against the portion 1. In the operation just described the contact-plate It will press the contact-follower (l up against the force of the springs f, thus producing and maintaining a firm contact for the electrical connections.

The construction and operation of the detachable connecting devices 7 are substantially the same as just described. In the drawings the parts of the device 7 which correspond to those just described are designated by similar reference characters and an indice, the notch 0" being formed in the bar of the lower-carbon and globe holder.

The socket 0, in which the shouldered catch members m and their springs n are carried, is a tubular portion of the frame 8 and is furnished with a cap 8, which supports the spring and forms the end of the frame member a. The head q of the attachment supports the bar 25. An attachment is provided for each of the ends of said bar on the opposite sides of the frame.

a designates the cover for the globe.

To place the globe in position, the retainerwill be first put upon the neck 12, and then the spring-band 13 will be forced upon the neck inside the retainer. Then the globe will be brought into position on the globe holder or base 51-, and the retainer will be pressed down, thus forcing the spring-band down on the outwardly-sloping lower end of the neck. The retainer will then be turned to bring the notches 92 below the pins 52 and will then be released, whereupon the spring 13 contracts, sliding upward toward the narrow portion of the neck, and thereby lifts the retainer carbon holder, and the operation is reversed to release the same. 7

WVhat I claim, and desire to secure by Letters Patent of the United States, is-

1. Alamp-mountinghavingdetachableportions, spring-controlled attachments for holding said portions together, and spring-controlled electrical contacts independent of the I said spring-controlled attachments.

2. A lamp-mounting having detachable por- I tions and spring-controlled attachments for holding said portions together, said attachments comprising members movable independently of the lamp-mounting so as not to depend on rotation of the latter for fastening or unfastening.

3. A lamp-mounting comprising asupporting portion, a frame portion and spring-controlled means for detachably fastening said portions together, said attachments comprising members movable independently of the said frame portion so as not to depend on rotation of the latter for fastening or unfastenng.

-l. A lamp-mounting comprising a support ing portion and a frame portion, one of which portions is furnished with'a slot; a shouldered member pivotally connected with the other portion and constructed to be operated by hand and to pass through said slot and to engage the slotted portion when partially rotated; and a spring for actuating said member to effect such engagement.

5. A lamp-mounting comprising a supporting portion; a shouldered member carried thereby and mounted to turn and to move axially; a lamp-frame constructed to receive the shouldered member and to be engaged thereby; and a spring to operate the shouldered member to effect such engagement.

6. In a lamp-mounting, the combination of a supporting member furnished with electrical terminals; a lamp member furnished with corresponding terminals; and attaching means independent of the electrical terminals constructed to I force the two members together with the said terminals in appropriate contact. I V

'7. In a lamp-mounting, the combination of a supporting member furnished with electrical terminals; a lamp member furnished with corresponding terminals; and springcontrolled attaching means independent of the electrical terminals constructed to force the two members together with the said terminals in appropriate contact.

8. In a lamp-mounting, the combination of two portions constructed to be connected together, one of said portions being furnished with a slot and a seat for an engaging device; and the other portion to be attached thereto being furnished with a spring controlled shouldered device movable independently of the lamp-mounting portion on which it is mounted constructed to pass through the slot nished with electrical contacts to press uponsaid spring-controlled contacts; and springcontrolled means independent of the electrical contacts for fastening said frame to said support.

11. A lamp-mounting comprising a supporting .portion;a detachable portion constructed to carry the lamp mechanism; means operating independently of the rotation of the lamp mechanism for detachably holding portion and furnished at its upper end with an inward projection; a globe furnished at its lower end with a neck inserted in said globe-holder and enlarged at its lower end; and a spring-band around the neck above its enlarged lower end engaging said shoulder to firmly hold the globe in its seat.

12. A lamp-mounting comprising a supporting portion; a detachable portion conaround the neck above the enlargement andengaging said globe. I 7

13. In a lampmounting, the combination projection to firmly hold the of a base; a globe having a neck enlarged at .its lower end; a spring-band around said neck; and a retainer surrounding the neck and detachably connected with the base and furnished with an inward projection to press the spring-band down onto the downwardlyenlarged neck while allowing lateral movement of the spring and globe.

14. In a lamp-mounting, the combination of a base furnished with an upward projection a globe having a downwardly-enlarged said portions rigidly together; a globe-holder detachably connected with said detachable ICC neck; aspring-band around said neck; aretwo subscribing Witnesses, at Los Angeles, tainer surrounding the neck and engaging California, this 4th day of February, 1902.

the top of the sprin" and allowin lateral play v 1 0f the same; and nieans for fastening the re- SAMUEL ANDERSON 5 tainer on the base. \Vitnesses: I

In testimony whereof I have signed my JAMES R. TOWNSEND, name to this specification, in the presence of E. A. \VATERMAN.