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Publication numberUS1249389 A
Publication typeGrant
Publication dateDec 11, 1917
Filing dateAug 18, 1913
Priority dateAug 18, 1913
Publication numberUS 1249389 A, US 1249389A, US-A-1249389, US1249389 A, US1249389A
InventorsGustav A Harter
Original AssigneeGustav A Harter
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric fixture.
US 1249389 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

2 SHEETS-SHEET I.

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ELECTRIC FIXTURE APPLICATION FILED $06.18, 1913.

Wme55e5/ G. A. HARTER.

ELECTRIC FIXTURE.

APPLICATION FILED AUG-l8. 1913- ]Pzmmed Dec. 11, 191?.

2 SHEETS-SHEET 2- GUSTAV A. HABTER, OF CHICAGO, ILLINOIS.

ELECTRIC FIXTURE.

recess.

Specification of Letters Patent.

Patented Dec. 11, 121W.

Application filed August 18, 1913. Serial No. 785,259.

To all whom it may concern.-

Be it known that I, .GUs'rAv A.,HARTER, acitizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Electric Fixtures, of'which the following is a s ecification.

This invention relates to a xture particularly adapted for use in connection with the electric lamps in which the lamp socket, and the lamp globes and shades may be separately adjusted and held relatively to each other.

The invention consists in the features of novelty in the construction, combination and arrangement of the several parts generally shown in the accompanying drawings and described in the specification but more particularly pointed out in the appended claims.

In the drawings, Figure 1 isa side elevation of a fixture with the shade and globe in sections embodying my invention; Fig. 2 is a sectional view of the socket clamping device; Fig. 3 is a detail view partly in sec tion of a part of the fixture; Fig. 4.-is a cross-sectional view of a locking device; Fig. 5 is a sectional elevation of the locking device; Fig. 6 shows the fixture supporting a ceiling plate with an adjustable eccentric support for the fixture; Fig. 7 is a detail of the eccentric adjustable support, and Fig.

8 shows the fixture in connection with the flerent form of shade or globe.

It is very desirable to have a sup ort for electric shades andglobes, as wel as for lamp sockets, which may be freely adjusted to accommodate various sizes and shapes of shades, globes and lamps, and also to provide means for facilitating the connection of the lamp socket with theplug or conduit to which the fixture issecured. The present invention-is for a fixture of this class.

A yoke member'lO comprises two arall'el extremities joined by a substantially flat perforated intermediate portion 11, the edges 12 of which are adapted to embrace an angular headed nut 13 which is inter-' nallythreaded throughout its length and externall threaded for a portion of its length, t e externally threaded portion being adapted to be inserted through the perforation of the intermediate portion 11.

The parallelextremities are formed ad- 7' jacent their ends with a portion 1t of'reduced width forming a shouldered head or extremity 15. Slidable up and down along the portion of reduced width are the extremities of a pair of socket clamping members 16 which are less in width than the length of the portion of reduced width so that they may be moved up and down with respect to the yoke member .10 for adjustment. These socket clamping members 16 are connected and clamped against the extremities of the yoke member by means of screws 17. A socket 18 is clamped by the screws in position between the clamping devices and the socket is separately movable with respect to the clampin members, and, of course, is movable with the members when they are adjusted with respect to the yoke member. The object of this adjustment is not only to raise and lower the lamp in the socket but is also toprovide a space between the yoke and the socket by means of which conductors 19, connected to the socket, may be joined to other conductors projecting through the plu or from a conduit 20 by means of whic the fixture is supported. A globe or shade-holding device comprises two parallel arms 21 vided with threaded perforations which extend'between the parallel extremities of the yoke member 10 and the fastening screws 17 on each side, and the extremities of the yoke member are also provided with unthreaded perforations, and screws 22 are inserted through the, yoke members and threaded into the arms 21, whereby the height of the shade-holding device may be adjusted independently, as desired. In order to lock the screws 22 in place a locking clip 23 is provided on each side of the yoke member which partially embraces the extremity of the yoke member and the arm 21, as shown more clearly in Fig. 4, and is slidable thereon with an enlarged portion 24 to en age the head of the screw 22 to prevent it from being disen aged from its connection. The shade-hol prises adjustable members 25 by means of which a globe or shade 26 may be held in position.

The fixture is supported by threading the member 13 upon the endof a plug or a conduit 20, and a shade 27 may be provided proing device also preferably com with an extending portion which covers the holding devices and also covers the adjustable members 25 of the globe'holders. This shade 27 is provided with a perforation which adapts it to be inserted over the member 13'with a washer 28 between them, and it is secured in place thereon by means of an outer lock-nut 29 with a washer 30 between them. These washers are of resilient or flexible material so that the shade will not be injured in securing it in position.

If desired, the globe or shade-holding device may consist of a threaded member 31 (see Fig. 6) to which the arms 21 are connected, and a threaded member 32 having a projecting flanged portion to which shadeholding devices 33 are adjustable to hold a shade of any size in position, the flanged portion also acting as a support for a ceiling plate 34:. In order to provide an ali ning means for a number of fixtures a support device comprising spaced members 35 and 36 is secured to the yoke member, and it in turn is secured to the ceiling or other support by means of screws 37 inserted through parallel slots 38 in one of the members. This same member is alsoprovided with an opening 39 extending in one direction from the center parallel with the slots 38 through which 80 the conduit 20 extends. By adjusting this support relatively with respect to the conduit it may be alined in any direction ani amount equal to the length of adjustment of the conduit in the slot 39. Another embodiment of the invention is shown in Fig. 8, in which the shade-holding device comprises a frusto-conical support 40 secured-to the arms 21 upon which the upper edge of a shade 41 is engaged. In this construction the yoke member is secured directly to conduit 20 and a hood 42 is adjustable uponthe conduit and held in place by a screw 43, the hood covering the fixture and engaging the screws 23 to pre vent their removal with the lower edge of the hood pressingagainst the globe or shade 41 to hold it firmly in position.

It is to be understood that this fixture is intended to accommodate globes and shades of various sizes and it is customary to have globes of various sizes with the same size su porting portion. Vhat I claim is:

-A device of the class described comprising a U-shaped yoke member, a pair of socket clamping members each having extremities to engage the edges of the extremities of the U-shaped member, and fastening means to adjustably secure the socket 560 clamping members together at both of their extremities and to permit the adjustment of i the members upon the extremities of the U- shaped member. 2. A device of the class described com as prising a single yoke member with parallel extremities, the parallel extremities of which are reduced in width adjacent the ends thereof, socket clamping members each having extremities to engage the edges of the yoke memberin the portion of the reduced width thereof, and means adjustably to secure the socket clamping members together adjacent the ends thereof.

3. A device of the class described comprising a yoke member with parallel extremities, the extremities of which are reduced in width adjacent the ends thereof,

a pair of socket clamping members adjustable with respect to each other and each havin extremities to engage the edges of the yo e member in the portion of the reduced width thereof, the clamping members bein less in width than the length of the reduce portion of the yoke member so that they are adjustable along the yoke member, and means to secure the clamping members to- -.gether for gripping a socket and to grip the edges of-the yo e member whereby they are adjustably positioned with respect thereto.

4. In a fixture device, the combination of a U-shaped yoke member having portions of reduced width adjacent the extremities thereof with a shouldered portion at the end, of socket clamping members adjustable along said portion of reduced width, and a single fastening device at each end to secure the socket clamping memberstogether to rip the socket and to clamp them against the extremities of the U-shaped member in the reduced portion, the shoulder preventing them from becoming disengaged from the yoke member.

5. In an electric fixture, a single rigid member with parallel extremities, a lamp socket, meansto give the socket a double vertical adjustment in the extremities, and a shade holding device having a vertically adjustable connection with the extremities of said member.

6. A device of the class described comprising a single rigid yoke-shaped member with parallel extremities, a shade-holding device with corresponding parallel holding extremities, and means to secure the corresponding parallel extremities together at different heights.

7. In a device of the class described, the combination of a rigid U-shaped member, a shadegholding device comprising parallel supporting arms, means to secure the par- 12o allel supporting arms to the extremities of the U-shaped member at different heights, and locking means for the said securing means.

8. In a device of the class described, the combination with a U-shaped member having a perforation" in each extremity, of a shade-holding device having corresponding supporting arms with threaded perforations therein, fastening screws -muirable freely naaaaea through the perforations in the tf-shaped member and en a 'ng in the threaded perforations, and 0c ing means disconnected from and movable over the heads of the screws to prevent their removal.

9. .][n a device of the class described, the combination with a U-shaped supporting member, of a shade-holding device adjustable with respect thereto, means for securing the device in any adjusted position, adjustable shade grippers in connection with the device, and means for .lockingthe securing means between the U-shaped member and the device and for covering the adjusted shade holder.

10. In a device of the class described, the combination with a porting member, of a socket. clamp adjustable at various heights in the member, and a shade-holder adjustable in height with respect to the member. a

11. ][n a device of the class described, the combination with a U-shaped supporting member, of an adjustable socket clamp comprising a pair of members adjustably secured together and gripping the extremities of the member, an adjustable shade-holder with parallel supporting arms extending betweenv the said securing means and the extremities of the. member, and means to secure the said arms adj ustably to the extremities of said member.

12. In a device of the class described, the combination of a U-shaped supporting memher having a flattened perforated portion intermediate the ends, and a headed nut threaded internally-and externally adapted to be inserted through the perforation in the member. and having an angular headed portion disposed adjacent the member, the sides of the member being bent over to engage the opposite angular faces of the head of the nut to'hold it firmly in position with respect to the member.

13. A device of the class described comprising a [Ll-shaped holder with a perforatedlntermediate portion, a fastening nut secured thereto and extending through the perforation, a shade-holder having upwardly extending arms, and means to secure and vertically adjust the shade holder in the extremities of the Ll-shaped member.

14. A device of the class described comprising a ttshaped holder with a perforated intermediate portion, a fastening nut secured thereto and extendin through the erforation, a vertically adjustable shade holder, and a vertically ad ustable socket clamp having fastening devices to secure it to the extremities of the U-shaped member.

15, A device of the classdescribed comprising a U-shapedholder witha perforated intermediate portion, a fastening nut secured thereto and extending through the.

perforation, a shade-holder comprising arms Single U-shaped supcorresponding to the extremities of the U- shaped "member, means adjustably to secure the holder to the said member, a socket clamp cbmprising a pair of members adjustable lengthwise of the U-shaped member, and fastening devices adjacent the ends thereof to secure the members adjustably together and to clamp the members in any adusted position against the extremities of the U-shaped me her.

16. In a device of the class described, the combination with a U-shaped yoke member having a perforated portion intermediate the ends, a eaded nut adapted to be inserted through the perforation threaded internally and externally and secured to the yoke mem-' her, a lamp socket, insulated conductors leadin therefrom and adapted to extend througdn the nut, a socket clamping device adjustable with respect to the member, means to clamp the socket adjustably in poshade disposed upon the nut, means upon the nut to protect the shade on both sides thereof, and a locking nut movable on the other nut to secure the shade in place against the yoke member.

18. ][n a device of the. class-described, thecombination with a U-shaped oke member having a perforated interme iate portion, of .a headed supporting member ada ted to be inserted through and extending eyond the yoke member, a shade-holding device comprising arms corresponding to the extremities ofthe yoke member, means adjust ably to secure t member, a lam ing therefrom t ough the supporting memher, a socket clamping device comprising a pair of members, and means to clamp them about the socket against the edges of the extremities of the yoke member, the socket being movable in the socket clam ing device and the socket clamping device h ratel adjustable with respect to the yoke mem er, a shade having a perforated portion through which the supporting member is adapted to extend, the shade inclosing the other members and device, washers disposed on both sides of the perforated ortion of the shade, and a lock nut movable on the supporting member and adapted to hold the shade in position. v

19. In an electric fixture the combination with a yoke member adapted to be centered e shade-holder to the yoke eing sepa int lllltit socket, conductors 'extenda justable shade-holding device, of avariable support for the yoke member comprising a plate having an elongated slot'extending from the center toward one side thereof, lateral slots, and fastening screws adapted to be inserted through said lateral slots for securing the mpport in position.

21. In a device of the class described, the combination with a yoke member having a perforated portion intermediate the ends a nut adapted to be inserted through the per foration threaded externally and secured to the yoke member through its perforation, a lamp socket, insulated conductors leading therefrom and adapted to extend through the nut, means to clamp the socket and to secure it adjustably in position with respectto the yoke member, a shade supporting device vertically 'adjustable with respect to the yoke member, and adjustable shade-holding members in connection with said shade supporting device.

22. An electric fixture comprising a rigid supporting oke, a lamp socket'clamp adjustable in t e yoke, and a shade holder adjustabl supported by the yoke.

23. n electric fixture comprising a supporting .yoke, a lamp socket clamp adjustable in the yoke, and shade holding means also supported by the yoke and adjustable wirespect thereto independently of the cla p.

24. In an electric fixture, the combination with a supporting yoke having arallel depending arms, asocket clamp a justable in the arms and securable thereto in gripping a socket, and shade holding means attachable also to the arms and depending below the extremities thereof and adjustable relatively to the clamp and the yoke.

25. In an electric fixture, a supporting yoke, shade holding means adjustable in the yoke, a socket clam adjustable in the yoke, a lamp socket slida le in the clamp for adjustment and held in adjusted osition when the clamp is secured to the yo (e.

26. In an electric fixture, a supporting yoke with depending arms, a socket clamp engaging the arms and adjustable therein, a socket engaged by the clamp and slidable in the clamp for adjustment, and a vertically adjustable focusing shade holder also supported by the yoke arms and independently adjustable with respect to the socket.

27. In an electric fixture, a supporting yoke with parallel arms, a lamp socket, and a socket clamp having portions to engage the socket and other portions to engage the arms and fastening means by which the socket and arms are simultaneously gripped.

28. In an electric fixture, the combination with a fixed support, of a shade holder supported thereby, and a vertically adjustable lamp socket clamp comprising a pair of members adapted to grip both the support and a lamp socket to focus a lamp with respect to the shade by the movement of the socket in the clamp and by the movement of the clamp.

29. In an electric fixture, the combination with a yoke having parallel arms, of a lamp socket, and a vertically adjustable socket clamp comprising a pair of members adapt-.

ed to grip both the arms and the socket to vary the position of a lamp with respect to the yoke by the movement of the socket in the clamp and by the movement of the clamp in the arms.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 8th day of August, A. D. 1913.

GUSTAV A. HARTER. Witnesses:

CHARLES H. SEEM, M. HARTY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3027450 *May 2, 1958Mar 27, 1962George W EverestIncandescent lamp protector for street lights
US4232361 *Dec 7, 1978Nov 4, 1980Mcgraw-Edison CompanyAdjustable light fixture
Classifications
U.S. Classification362/277, 362/285, 362/437
Cooperative ClassificationF21V17/02