US1907043A

US1907043A - Electric light fixture

Info

Publication number: US1907043A
Application number: US500163A
Authority: US
Inventors: William P Crockett; Jr William P Crockett
Original assignee: HOSPO Inc
Current assignee: HOSPO Inc
Priority date: 1930-12-05
Filing date: 1930-12-05
Publication date: 1933-05-02
Anticipated expiration: 1950-05-02

Description

May 2, y1933. w. P, cRocKr-:TT ET AL ELECTRIC LIGHT FIXTURE Filed Deo. 5, 1930 3 Sheets-Sheet l Maly 2, 1933. w. P. CROCKETT ET AL 1,907,043

ELECTRI C LIGHT FIXTURE Filed Deo. 5, 1930 5 Sheets-Sheet 2 May 2, 1933. w, P 'CROCKETT ET AL- 1,907,043

ELECTRIC LIGHT FIXTURE Filed Dec. 5, 1950 3 Sheets-Sheet 5 47 we/z//b fg Patented May 2, 1933 @ETE VILLIAIJI P. CROCKETT AND WILLIAM E. CROCKECET, JR., OE ClCAG-G,

E13-N035 TG IOSEO, LNG, GF CHICAGG, l

istria ELECTRIC LGHT FIXTURE Application filed December 5, 1930. Serial No, EQGE.

rllhe invention relates to electric light f1xtures, and particularly to that type of fixture which may be removably attached to furniture, wall braclzets or other supports.

The primary object of the invention is 'to provide an electric light fixture which may be readily attached to or detached from a support so to furnish illumination to the user at the particular place or spot desired, and the invention is therefore particularly applicable for use in hospitals, physicians, sur- ,geons7 and dentists offices where close examinations and explorations are frequently made and wh-ere portability of the lamp is desirable. rlfhe invention is also of particular utility in laboratories, studios, garages, and in fact in any place where light must be brought close to the person or object to be examined. it will be obvious that the electric light fixture is also particularly adaptable for use as a reading lamp.

Another object of the invention is to provide the fixture with means whereby one portion of the fixture may be firmly attached to another portion of the fixture and locked into place so that it cannot be casually separated or removed., and yet by properly manipulatingl the locking` mechanism, the light fixture portion may be very readily detached from the clampiirgl or supporting portion of the fixture.

A further object of the invention is to provide a structure which will maintain the clamping` portion of the fixture and the handle and reflector portion thereof in locked relationship except on operation of th-e locking` mechanism involving coacting` locking features in both portions of the xture.

In connection with the detachable feature of the fixture to enable the lamp to be used as a hand lamp or portable lamp in connection with examinations or explorations, it is an import-ant object of the invention to be able to quickly and readily lift the lamp from its support, and quickly and readily replace it and lock it inposition, and therefore the support and the lamp fixture are provided with spaced coacting locking' means so that the lamp fixture may be. placed'at any one of a plurality of positions in the holder and locked into piace, and the reflector can thereupen be rotated 'to its desired position.

lt is a further oh ct of the invention to cri-case ne electric lifrht socket and 'the light cord in a cylinder adapted to serve the double purpose of providing a portion of the detach able locking` means and providingI a hande for the fixture so that the fixture may be readily grasped, removed from its holding and clamlriing portion and brought to the place or location for the examination and exploration by the physician, surgeon, dentist, nurse, or other person.

fr further object of the invention is to combine a rotating` reflector with the handle so that the direction of the light rays may be controlled.

lt is further object of the invention to construct the handle in such a manner that a. socket having` pull chains or cords for varying the volume of light from the lamp may be used.

An additional object of the invention is to provide adjustable clamping means for the supporting` portion of the fixture so that th fixture may be secured to any size or form of hed or other support.

A modified structure is shown and described, wherein the supporting` portion of the electric light fixture is permanently as sociated with and secured to a wall box, or fastened to the wall, or other place, as desired, but allowing` the ready adjustment of the lamp with its reflector and handle.

The invention will best be understood by reference to the accompanying drawings wherein the principle structure and the modification are shown, it being` understood that we do not limit ourselves to the exact constru tions shown and illustrated but in the claims hereinafter set forth intend to cover all variations and modifications thereof.

ln the drawings:

Figure l shows an assembly and side view of the electric light fixture with its clamp attached to the top rail of a bed,

Figure 2 is a disassembled view of the structure of Figure l and shows the manner of handling` the portable portion of the fixture as well as the clamping and supporting portion of the fixture,

Figure 3 is a horizontal sectional view of the clamping screws of the fixture on the line 3-3 of the right hand portion of F igure 2, l

Figure 4 is a longitudinal sectional view of the electric light xture illustrated in Figure l,

Figure 5 is a front view of the face of the supporting portion of the fixture shown clamped to the top rail of a bed,

Figure 6 is a front or face view of the end of the handle showing the studs which fit and lock in the clamping and holding portion of the fixture and showing the rear view of the refiector, A n

Figure 7 is an end view of a portion of the supporting part of the fixture and showing the lamp and handle in locked position,

Figur-e 8 is an enlarged sectional view of locking elements shown in Figure 4,

Figure 9 is a view showing the under side of the reflector and the handle and illustrates the pull chains in the handle,

Figure 10 is an oblique sectional view showing the locking connection between the handle and supporting portions of the fixture on the line 10-10 in Figures 5 and 6,

Figure 11 is a side elevation of the assembly of a modified form of electric light fixture with clamp attached to be permanently secured in a wall fixture,

Figure l2 is a disassembled side view of the electric light fixture and support shown in Figure 11, and illustrates the electric light fixture being held separately from the support,

Figure 13 is a longitudinal cross sectional view of a supporting portion of the modified form of fixture and support and Figure 14 is a top view of the electric light fixture in place in the modified form or' wall support.

Like parts throughout the various views are given the same reference characters.

As illustrated in Figures l to l() inclusive, of the drawings, the electric light fixture comprises the clamping mechanism generally designated 20, the support 2l, the handle generally designated 22, the latter carrying the reflector 23. The lamp socket 24 is shown in position in the handle and the lamp bulb 25 is in position within the reflector.

As shown the electric light fixture is clamped to the top square tube or rail 26 of the bed 27. It will be obvious that the fixture may be clamped to a round ytube or rail of a bed or in fact any portion of a bed to which the jaws of the clamp may be fitted. It will also be understood that the electric light fixture may be clamped to any kind of furniture, apparatus or support to which the jaws of the clamp may be fixed.

The clamp of the fixture is provided with a pair of

jaws

28 and 29 which preferably have the angularly disposed depending portions as shown. These depending portions or arms when brought toward each other by the means about to be described, securely clamp and hold the fixture to the bed or other support.

In order to assist the clamp in maintaining a secure grip or hold on the bed or support, protectors 30 and 3l of suitable form and material, such as sheet rubber, are used. By the employment of the rubber protectors, which preferably cover the entire inner faces of the clamp-arms, the electric light fixture is prevented from rotating or from any movement on the rail of the bed, however smooth it may be.

Each of the depending arms of the clamp are provided with hollow tubes which extend into each other and telescope so as to permit any desired adjustment of the two clamping arms. The outer clamping arm 29 is provided witlY two

telescopingtubes

32 and 33.

rlhe tubes

32 and 33 are driy en and permanently fit ed into apertures in the clamp arm 29, and extend entirely through the clamp arm 25) as particularly shown in Figure 3. it will be understood that the

tubes

32 and 33 are immovable with respect to the clamp arm The bore of the

tubes

32 and 33 is smooth ti. receive the closel.7 fitting tubes 34 aud 3i which are permanently iitted in the clamp arm 28 and extend entirely through the aper4 tures in the clamp arm 28, and through the U shaped member 36 on the inner side of which the tubes are turned and held.

The interior faces-ofi' the

tubes

34 and 35 are screw threaded to receive the long screws 37 and These screws are passed through the tub-

es

32 and 33 into the

tubes

34 and 35 to the desired position. The

clamp arms

28 and 29 are then brought to their desired position on the bed, table or other support. The

screws

37 and 38 are provided with the permanently attached

hexagonal heads

39 and 40, and also the cup shaped washers 4l and 42 to cover the apertures in the clamp arm 29 and the exposed ends of the

tubes

32 and 33.

it will be understood that the cup shaped washers may be screw threaded on the

screws

37 and 38, or they may be permanently secured to the screws against the

heads

39 and 40.

i ie rubber protector 30 is provided with apertures to enable the

tubes

34 and 35 to pass therethrough to enable the protectors to :,e Ilaced against the inner face of the clamp arm 28. The rubber protector 3l is also pre ided with apertures te enable the s and 33 to pass therethrough so that the rubber protector may be fitted against the iner ce ot the clamp arm After sliding the arm 20 and the tubular Leif/,043'

extensions 3Q and 83 on the extensions Sai and 35, the screws in the tubular extensions 3d and 35 meanwhile remaining in the position to which they have heen brought, the 5 clamp is set in position on the rail Q6, or other support, and the clainp arin 29 and

extensions

32 and 33 slide on the extensions and 35 until the arms 28 and Q9 clainp the rail 26.

rlhe screws

37 and 38 are thereupon screwed into the tubular extensions 361. and 35 to securely balance and clainp the arnis Q8 `and 29 against the rail Q6, or other support.

YAs a. general proposition in connection with hospital heds the clamp and holder will usually remain on the hed in the saine positic-n in which it was originally placed but it will be understood that the clamp and holder inay readily be moved to any part ot the bed, and the clanip bein adjustable may readilyY he itted and secured in position.

rlhe support 2l. d

is pivotally connected to the clainp generally designated 20 by niears Y. ll shaped nieinlier 35 and the pivot pin l screi' head The pivotpin el?) .is e with the head l5 and the reduced rl`he red ced stein i6 is to into the screw threads in prior ot the screw head le-fi. The screw Y "el is provided with a head The nvot nin ifi and the screw head la are eni bv the sleeve 4S.

.up Dort 2l is provided with the eX- ort-ions or flanges 49 which are apertured a d through wll `ch apertures the pivot pin `nd the screw head lll extend. The L red portions or flanges 4 9 are between shaped nicniher 36 and the heads @l5 anc. 7 ot )the pin 43 the screw head elfi, resp I tively. rThe screw head 47 when turned w' raw the nin so that tight and snug lit o the various parts will he inade.

support il is also provided with a it. ot keyhole rots 50, 5l. 52 and 53 iortne s eception or" the studs 54;, 5', 56 and 5? on the lainp iandle generally desand 59 are for the passage and c ifi/tion ot the locking` pin or stud 60 and the push button stein 6l. These studs or stems permanently ailised, as by solder, to fiat locking spring 62, riveted at 68 to the inain wall of the support 2l.

. i button stein 6l is provided with the hea il Gil which entends outwardly of the supa 2l and is positioned below the handle `e it is in nornial position i` the support 2l. The support 2l is also provided in its upper portion with the large slot 65 having the enlarged opening' 66. rlhe slot 65 is to enahie the cord 67 to be passed through it ano into the enlarged openingl 6G and thereupon permits the sleeve or thinible 69 to pass into and become seated the enlarged opening (3G of the support.

The handle 22 is composed of the cylindri cal container 69 which is formed with the annular reduced portion'70 at the lanip end. A ring 7l having,v an angular flange, is seated on the shoulder toi-ined by the reduced portion 70. fr washer' 72 is then placed on the ring 7l and the apertured reliector 23 is then placed in position against the washer.

Locking rings 73 are then placed in position against the reflector to hold the reflector 23 in place. The ring` 7l is provided with an out-ward screw thread and the rings 73 are provided with rcorrespending` interior screw threads. rldhe relieetor 23, the ring 7l with its ring` washer 72, and the locking rings .73 e arranged and held in such a position tiat the reliector is trictiona ly held in place, ont is perniitted to rotate 860 degrees by the application of' a suitable degree ot force.

t 24ris provided with the i i nble end 7 d which screw threaded on its interior to receive one end ot' the tubular cord extension pipe 7 5. The outer end portion of the tubular cord extension pipe has exterior screw threads tor connection with the end thinible 68. The end portion of the conductor 67 is passed through the thiinble 68, the tubular cord extension pipe 75, and to the lanip socket 24, where its end is properly connected to the lainp socket to supply current.

Th cylindrical holder 69 is provided with the longitudinal slot 76, the inner end of which slot enlarged to receive the pull chain thiinble 77 secured in the lamp socket The lainp pull

chains

78 and 79 extend through the thinible 77 into the socket 24 andA operate the lanip 25.

The cylindrical holder G9 is covered with several sections ot insulated liber tubing;` 8O and 8l. The section ot liber tubing 8O is placed on the outside ot the handle 69 beitore the socket Q41 is inserted into the handle. ^`liter the socket 24, the tubular extension and the cord 67 have been inserted in the handle they are placec at the end thereof, the pull chain thinihle pissing` along the slot 76. rlhe other section ot liber tuhinp; is passed along the cord 67 and placed in position abutting` the ber tubing section 80. The tiber tubes are cut out to fit around the pull chain thiinble.'

A metallic cap 82 is titted on the end of the handle anc is secured to the fiber tube 8l. i

and the metallic cylindrical holder 69, by a plurality of screws 823 which pass through screw-threaded apertures in the flange of the metallic cap 82, the liber tube section Sl and the inetallic holder 59.

The metallic cap 82 which has the

plurality oit studs

54, 55, 56 and 57, is also pr vided with plurality ot apertures Sil, 85, 86 and 87, which are for the reception of the locking` pin 60 on the flat spring 62. The apertures S4, 85, 89 and 87 are preferably spaced around the face of the metallic cap between the

studs

54, 55, 56 and 57. As shown more particularly in Figure l0, the

studs

54, 55, 56 and 57 have enlarged heads and reduced necks and are inserted and riveted into the metallic cap with portions of the necks with the heads thereon extending beyond the face of the metallic cap.

lt will thus be seen that after the lamp socket extension tube and cord have been inserted in the handle and the fiber tubes, and the metallic cap, with the light cord extending through it, has been secured in position by the said screws, lirst having the end of the cord extension tube screw threaded into the thimble in the metallic cap, the electric light fixture is complete as a portable lamp structure and may thus be used when the conductor is properly connected in the lighting circuit.

Vlhen it is desired to place the electric light lixture, which has been used as a portable lamp, in place in the support 2l, the conductor 67 is passed. into the slot 65, to the enlarged opening 66 and the portable iixture is then pushed into place against the support 2l. At this time the thimble 68 should be in alignment with the aperture 66, the heads et the .stubs 54, 55, 56 and 57, should be in alignment with the enlarged portions of the

keyhole slots

50, 5l, 52 and 58, respectively, and one of the

apertures

84, 85, 86 or 87 should be near the locking pin or stud 60.

The face of the support 2l is thereupon brought directly against theface of the metallic cap 82. n this position the thimble 68 and the heads of the

studs

54, 55, 56 and 57 extend through the aperture 66 and the

slots

50, 5l, 52 and 53, respectively, beyond the inner face oi the support 2l. rlhe lamp lixture is then slightly rotated in the keyhole slots and in the opening 66 until the studs pass to the end of the restricted or narrow portions of the

slots

50, 5l, and 53, whereupon the locking pin 60 attached to the flat spring 62 snaps into one of the

apertures

84, 85, 86 or 87.

In order to release the lamp structure from the support 2l, pressure is applied on the button 64, and the stem 6l secured to the flat .spring 62 to withdraw the locking stud or stem 60 from the

particular aperture

84, 85, 86 or 87. When this release has been effected the lamp structure is rotated slightly in the opposite direction around the thiiible 68 so that the

studs

54, 55, 56 and 57 pass frein the restricted or narrow portions of the lreyhole .

slots

50, 51, 52 and 53 to the enlarged portions of the slots whereupon the fixture may be withdrawn from the support, the thimble 68 passing through the opening 66 and the conductor 67 passing upwardly through th slot 65. rlfhe lamp structure thereupon again becomes a. portable one and may be used for exploration and examination as desired.

ln the modified structure illustrated in Figures ll to 14, inclusive, the same electric lamp structure and support as is shown in Figures l to 10, inclusive, is employed. The difference in the two structures is that instead ot having the fixture provided with a clamping portion such as the clamping portion 20, the fixture and support are attached to a U shaped member 88 which in turn is riveted to a wall plate 89 by means of the

rivets

90 and 91.

The wall plate 89 bearing the U shaped member which carries the support 2l and the electric light fixture is preferably inserted back of the ordinary wall plate 92 which covers the wall outlet box 93, with which the plug 94 is associated.

t will therefore be understood that in this last described structure the electric light fixture is portable but the iixture support and the connection with the wall plate is not portable but is permanently fixed in position.

The latter type of structure is especially adapted for physicians, surgeons and dentists7 ofiices, laboratories, garages and other places where only the portable light fixture itself needs to be moved about.

It will also be understood that in addition to the portability of the hol-der portion of both forms of electric light fixtures, in each case the holder portion may be swung downwardly or upwardly on the

pivot connections

43 and 44, if it is desired not to have the holder portion extending horizontally from the clamp and support.

Having thus described the invention what we claim and desire to secure by Letters Patent is:

l. In an electric light fixture the combination of a cylindrical holder, said holder being adapted to receive an electric light socket, said holder being adapted to receive a reflector and at the other end a cap, a support for said holder attached to a clamping mechanism, said support and the face of said cap being provided with coacting adjustable and detachable means whereby said holder and reflector may be held in various positions or may be entirely separated from said support and clamp.

2. In an electric light iixture the combinationy of a cylindrical holder, said holder being adapted to receive an electric light socket, said holder being adapted to receive a refiector at one end, and a cap at the other end, clamping mechanism, a support for said holder attached to said clamping mechanism, said support and the face of said cap beine' provided with coacting adjustable and detachable means whereby said holder and reflector may be held in various positions or may be entirely separated from said support and clamp, said adjusting and detaching means consisting of a plurality of studs and slots spaced in said cap and support.

support being provided with a plurality of keyhole slots, the enlarged heads of said studs on said being adapted to enter said keyhole slots in said support and on turning in said keyhole slots said studs beine adapted to engage and to be held by said support in various positions.

l2. In an electric light fixture, the combination of a holder, said holder being adapted to receive an electric light socket, said holder having a cap at one of its ends, a support for said holder, said cap being arovided in its 'face with a plurality of studs, said support being provided With a plurality of slots, said studs on said cap being adapted to fit in said slots in said support whereby said holder may be held in said support in various posi.- tions, said support being provided l lock comprising a spring pressed button, sari cap being provided with apertures, said spring pressed button being adapted to lock and unlock said holder and support.

13. In an electric light iXture the combination of a holder, said holder being adroted to receive an electric light socket, said holder having a cap at one of its ends, a support for said holder, said cap being p 1ovided in its face with a plurality of studs, said studs having necks and enlarged heads, said support being provided With a plurality of -eyhole slots, the enlarged heads of said studs on said cap being adapted to enter said keyhole slots in said support and on turning in said keyhole slots said studs being adapted to engage and to be held by said support in various positions, said support being provided with a lock comprising a spring pressed button, said cap being provided With apertures, said spring pressed button being adapted to lock and unlock said holder and support.

14. In an electric light liXture the combination of a holder, said holder being adapted to receive an electric light socket, said holder having a cap at one of its ends, a support for said holder, said cap being provided in its face With a. plurality of studs. said studs having necks and enlarged heads, said support being provided with a. plurality of keyhole slots. the enlarged heads of said studs on said cap being adapted to enter said keyhole slots in said support and on turning in said keyhole slots, said studs being adapted to engage and to be held by said support in various positions, said support beino provided further With a spring locking mechanism, said locking mechanism having a button for locking and unlocking said support and holder, the head of said button being beneath said cap when the holder and the support are in locked position, said cap being provided with a plurality of apertures and said spring lock mechanism being adapted to coact With either of said apertures to lock and unlock said holder and support in various positions.

l5. In an electric light fixture the combination ofa holder, said' holder being adapted to receive an electric light socket, said holder having a cap at one of its ends, a support for said holder, said cap being provided in its face With a plurality oi' studs, said studs having necks and enlarged heads, said support being provided with a plurality of keyhole slots, the enlarged heads of said studs on said cap being adapted to enter said keyhole slots in said support and on turning in said keyhole slots, said studs being adapted to engage and to be held by said support in various positions, said support being provided further with a spring locking mechanism, said locking mechanism having a button for locking and unlocking said support and holder, the head of said button being beneath said cap when the holder and the support are in locked position, said cap being provided with a plurality of apertures and said spring lock mechanism being adapted to coact With either of said apertures to lock and unlock said holder and support in various positions, the apertures in the face of said cap being spaced between the studs extending from said cap.

In Witness whereof, We hereunto subscribe our naines this 3rd day of December A. D.,

WILLIAM P. CROOKETT. WILLIAM I). CROCKETT, JR.