US1261788A - Reflecting-lamp. - Google Patents

Description

H. A. DOUGLAS.

REFLECTING LAMP.

APPHCATION FILED FEB. 19. I911.

1,261,788. Patented Apr. 9,1918.

2 SHEETS-SHEET H. A. DOUGLAS.

BEFLEC'HNG LAMP.

APPLICATION man ms. 19. m1.

1,261,788. Patented A r. 9,1918.

2 SHEETS-SHEET Z- 5 of Michigan, have invented a certain new Hector containing casing 2, this surfacobe- B and'uiusei'ul Improvement in Reflectinging suitably polished or' formed toihax the Lamps; of-which the following is' a full, desired capacity fo1-reflection. Therlefleetor olearg eoncise, and exact description. carrying easing includes a rearwartlly ex- My invention relates primarily toreflecttending cylindrical tubular continuatlon 3 19 ing lamps of the variety known as spot that constitutes a holder or mounting for 65 lights= though features thereof are not to the light/source. A spring tongue 4 is be restricted to such lamps andhas a number integrally formed with a shell 5 that conof objects and advantages in view. stitutes a holder for contact carriers, this In accordance with one feature of my inspring tongue having ample clearance at its vention the reflector carrying casing and the side margins to permit it freely to function. 70 handle are formed in separate pieces having Some part of the tongue, such as the rear interengaging formations that are forced free endthereoi, has a part 6 projecting iiitowigid engagement to make the'handle therefrom which i narrower than the bill, andhaclr element rigid with respect to each ance of the tongue and is slightly narrower other. Where a bracket is employed it is than a slot 7 in the holder 3 whereby this 75 heldoingplace by the aforesaid interengag portion may project into the slot while at ing formations of the handle and easing, the same time the side margins of the tongue being-preferably interposed between such 4 are adaptedto press against the s de formations. margins of the slot 7. The tongue thus The bracket has a suitable universal conpresses upon asurface of the holder 3 and, 80 motion; at its lower end, with a suitable where there is but one tongue, forces the anchorage and is held in relation with such shell toward the opposite side of the holder uainchorage by a pressure which is manually \vliereby the shell :is held in engagement with re ula blet the holder The'slot 7 is elongated so that 80 ydnvention also contemplates the comthe shell 5 may be moved back and forth in 85 bination with a movably mounted lamp, of its holder 3 whereby in the structure illusmirror employed in conjunction with the trated the position of the lamp bulb 8 which olmnp and having amounting upon which it is carried by the forward end of the shell is moved that is distinct. from the lamp in front of the reflector may be adjusted $5 mounting whereby this mirror may reflect with respect :to the reflector. The base!) 90 objeotstothevrear of the automobile carryof the lamp bulb 8 constitutes the forward ing the lamp without changing the angle contact carrier and as-the arrangement illus- Mi theilamp itself. Inthe preferred emboditrated is aidouble pole arrangement this conmentlofi the inventionthis mirror may also tact carrier 9 carries two rear contacts 10 act as fi p'edestal uponwhich the lamp may and 11. Thelam'p base or contactearrier 9 ,95

ED STATES PATENT orrrou,

time a I a t DOUGLAS, OF BBONSON, MICHIGAN, ASSIGNOE TO DOUGLAS 86 RUDDMI'G. 00.,

I t or BRONSON, MICHIGAN, A oonroimrron or MICHIGAN,

U BEFLECTING-LAMP.

Specification of Letters Patent. Patented A r g 1918,

if 1 Application filed February 18, 1917. Serial No. 148,670. 1

To ail iwltom it may concern: actors of reference throughout the rdifierent Bee-1i! known that I, HARRY A. DOUGLAS, citizen of' the United States, residing at Bronson, ih'zthefcount-y of Branch and State be supported at various angleswhen the A lamp l1S=,'l1S8d as an inspection lamp. I

or; {I mill-,explain my invention more fully reference to r the accompanying drawings figures. v .v

The concave reflecting part 1 of the structure may be the interior surface ,ofya reis provided with bayonet 'pins 12-engageable withili bayonet seats 13 constituting parts of" bayonet slots 14. The; rear con.-

k tea "carrying plug 15 within the casing 2 is showihgnthe preferred embodiment thereof andlimyvhioh Figure 1 is a side elevation, parhall 1 in section, of a reflecting lamp eonatalinmgufeatures oi my inuentiongfFigfl is-av longitudinal iew, partially in" 86612109. and

provid bindig ig screws 17 bywhich circuit wires may be secured to the terminal blocks. These -ter-' minal'blocks are cylindrical and the for- I ward ends thereof are tubular, springs 18 'with terminal blocks 16 hayingtloo partiallyminelevatmxiflgf portions of the; being'nelmd d iathe tubular portionsof tliefios structure illustrated i iflfliljig. 1; Fig; is: a, i terminal block and. operat ngto .piet s' .egnwem!on@ line--.3+Bm Fog-Awlligfint atactselt tflhif lfwfi cllitim fi ls ee s li t lt.

Wihwimmh eea-amtufigat anei i satiesth metemaaei haltef tbereeiphf a view on ine 5-5 of F1 being within the 0881115.

4. I e spm it Like parts are indicate% by similar charand the contacts 19 on QOth-us not hold the bayonet pins jun ' This head serve to establish circuit for the lamp but also operate to hold the lamp base 9 1n bayonet pin and slot connection with the shell 5.

The plug 15 is rotatable within the rear end of the shell 5 in order that it may orform its switching function and when t us movably mounted it is provided with bayonet pins 21 and which are receivable in alternate bayonet seats 22, 23, the plu bein inserted from the front end of the she I wit its pins passing along the bayonet slots 14 until they are in the zone that includes the bayonet seats 22, 23 whercafter the base of the lamp bulb is inserted in the shell with its pins 12 placed in the bayonet seats 13. The springs 18 12 in the seats but also serve to hold the bayonet pins 21 in the seats to which they are adjusted.

It will be observed that the complemcntal switching contacts 10 and 19 are eccentric with respect to the shell as are also the complemental switching contacts 11 and 20 so that as the plug is turned these contacts are either brought into engagement or are separated according to the direction of movement of the switching plug 15. \Vhen the lamp is in open circuit the contacts 19 and 20 are pressed against the insulating portions of the lamp base that are adjacent the contacts 10 and 11, the springs 18 continuing to press the contacts 19 and 20 forwardly to maintain the bayonet pins upon the switching plug and upon the lamp base in their respective bayonet seats. The shell and the parts within it are in front of the casing 2 and in order that the switching plug 15 may be turned or otherwise moved with respect to the lam base to out the lamp in and out of circuit I employ a motion transmitting connection, in the form of a switching rod 24, which is connected at its inner end with the switching plug and which is operable from the exterior of the casing. The outer end ofthis switching rod desirably has a gripping head piece 2521ssembled therewith by means of a pin 26.

iecc may be gripped in order that the rod 24 may be turned into on or off Lrcuit positions and may be moved in and to adjust the bulb.

switching mechanism which I have described is clan-nod in my co-pcndinp application, Serial No. 149,666, filed FOlHHtH'Y 19, 19.17. V

The holder 3 is continued roarwardly and constitutes-ta part of the handle 27by which the lamp may be manipulated, the

ortionof the handle which is graspcdbcmg larger than .the portion 3, which latter portion thus constitutes a neck .ortion. This arrangement affords suitable rccdom for the adjustment ing ample clearance at thus not only to serve to of the shell 5, there be-Q the rear of the shell side mama's between it and the surroundin part of the gripping portion of the han e. The enlar ement of the handle to the rear of the nee 3 thereof also afi'ords suitable space in which the conductors 28 that lead to the switching plu may be disposed and in which space t e inner ends of the conductors may readily move when switching occurs.

The ortion 29 of the bracket 30 is interposed etween the beads or flanges 31 of the handle. An annular space intervenes between these flanges or beads in which the rear of the. reflector and the bracket portion 29 are received and the flanges are firmly pressed into enga ement with these parts whereby the han le, refiecto'r and bracket are clamped into rigid relation. The lower end of the bracket 30 is in ball and socket connection with a s lit anchorage 32 between the split parts 0 which the lower end of the 'bracket is clamped by a clamping bolt 331 The clamp32 isclamped to any suitable support, such. as the wind shield 34, by clamping screws 35, By means of this bolt 33 the clamp may be loosened to enable the lamp to be placed in any selected adjustment and may thereafter be tightened to maintain this adjustment.

The frame 36 of the mirror 37 is, in the embodiment of the invention illustrated, )rovided with trunnions 38 that are received in the branches of the bifurcated support 39. "This support 39 is connected withsome part of the lamp structure, being preferably a continuation of the bracket 30 that extends beyond the lamp supporting portion of the bracket from the place of conncotion of the bracket with the lamp structure. The mirror is back of the casing and normally faces the rear so that it may reflect objects following the automobile carrying the lamp. it is not necessary, by means of the construction illustrated, to change the angle of the spot light in order to shift the angle of the mirror since tlieunirror may readily be turned in its bearings without shifting the lamp. This characteristic is an advantage over prior constructions having rearwardly facing mirrors connected with the lamps. The bearings in'whi-ch the mirror is journalod are desirably stitl' or of friction type so that when the lamp bracket is uncoupled the mirror may be used as a base upon which the lamp may be supported and with respect to which the position of the lamp may he changed as de- Slltd, for inspection. t will be observed that this mirror does not form a part of the casing, being supplied in addition there to, so that its movement with respect to this casing nowisc modifies the constructionand function of the lamp itself.

The conductors 28 are passed between the bars of the bracket 30 and find passage mamas at the rear of the neck 3 into the interior of the hollow handle.

The interiors of the reflector and handle are merged into one in which composite interior the light source is disposed and may be adjusted and in which the focusin and switching rod 24 may be moved an into which the head piece 25 may project to the extent required to secure the desired focal adjustment of the lamp, said switch being rotatable in any of its positions, to enable the switchin of the lamp into and out of circuit. he rear face of the casing or at least the upper part thereof may be ol ished to constitute it a reflecting surihee upon which objects at the rear may be reflected. As exhibited the lamp may readily be detached to be used as an inspection lamp.

\Vhile I have herein shown and particularly described the preferred embodiment of my invention 1 do not wish to be limited to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention, but having thus described my invention I claim new and desire to secure by Letters Patent the following:

1. In a reflecting lamp, the combination with a light transmitting cover; of a rcfiector carrying casing at the front of which said cover is disposed; a hollow handle; a bracket for supporting the lamp and which is clamped by the handle to the casing; a lamp bulb; and a shell carrying the lamp bulb and located in the part of the handle adjacent the casing.

2. In a reflecting lamp, the combination with a light transmitting cover; of a reflector carrying casing at the front of which said cover is disposed; a hollow handle formed separately from the casing; a bracket for supporting the lamp, the handle clamping the bracket and casing together; a lamp bulb; and a shell ca rryin the lamp bulb and located in the part of 510 handle adjacent the casing.

3. In a reflecting lamp, the combination with a light transmitting cover; of a reficctor carrying casing at the front of which said cover is disposed; a hollow handle; a bracket for supporting the lamp and which is clamped by the handle to the casing; a lamp bulb; and a shell carrying the lamp bulb and mounted to more in and out and located in the part of the/handle adjacent the casing.

4. In a reflecting lamp, the combination with a light transmitting cover; of a reflector carrying casing at the front of which lamp said cover is disposed; a hollow handle formed separately from the casing; a bracket for supporting the lamp, the handle clamping the bracket and casing together; a lamp bulb; and a shell carrying the lamp bulb and mounted to move in and out and located in the part of the handle adjacent 3 the casing.

5. In a reflecting lamp, the combination with a light transmitting cover; of a reflector carrying casing atthe front of which said cover is disposed; a hollow handle; a bracket for supporting the lamp and which is clamped by the handle to the casing; a bulb; and a shall carrying the lamp bulb and located iii the part of the handle adjacent the casing, the part of the handle containing the shell being reduced to form a neck in which the shell it received.

6. In a reflecting lamp, the combination with a light transmitting cover; of a reflector carrying casing at the front of which said cover is disposed; a hollow handle formed scpara tely from the casing: a bracket for supporting the lamp, the handle clamping the bracket and easing together;-a lamp bulb; and a shell carrying the lamp bulb and located in the part of the handle adjacent the casing, the part of the handle containing the shell bein reduced to form a neck in which the shcl is received.

7. In a reflecting lamp, the combination with a light transmitting cover; of a reflector carrying casing at the front of which said cover is disposed; a hollow handle; a bracket for supporting the lamp and which is clamped by the handle to the casing; a lamp bulb; and lichen carrying the lamp bulb and mounted to move in and out and located in the part of the handle adjacent the casing, the part of the handle containing the shell being reduced to form a nec' in which the shell is received.

8. In a reflecting lamp, the combination with a light transmitting cover; of a reflector carrying casing at the front of which said cover is dis osed; a hollow.handle formed separately romthe casing; a bracket for supporting the lamp, the handle clamping the bracket and easing together; a lamp bulb; aml a shell carrying the lamp bulb and mounted to move in and out and located in the part of the handle adjacent the casing, the part of the handle containing the shell being reduced to form a neck in which the shell is received.

In witness whereof, I hereunto subscribe my name this 31st day of January A. D.

HARRY A. DOUGLAS.

Images