US936499A - Aseptic deflector-lamp. - Google Patents

Description

G. C. WERNER.

AASBPTIG DBFLEGTOB LAMP.

APrLIoATIoN rILm 1113.11, 1901.

Patented 001;. 12,1909.

HM. Z

l() A for many tion.

'UmTED STATES' PATENT OFFICE.

'GEORGE c.- wnitNEn, or NEW Yoan, N. Y.

Asnr'rr'c EFLECToa-LAM'P.

Specification of Letters Patent.

Patented oct. 12, 1909.

Application led April 11, 1907. Serial No. 867,536.

To all whom 'it may concern:

Be it known that I, GEORGE C. WERNER, a citizen of the United States,`residing in the borough of Brooklyn, in the city and State of New York, have invented a certain new 'and useful Improvement in Lamps of the class sometimes termed Aseptic Deliector-v Lamps, cation.

The improved apparatus is-capable of use purposes where a small amount of light will suffice. It is more particularly intended for surgical use in inspecting the interior of the throat, and also of other of which the following is a specifiparts, as the mouth, nose and ears. I have devised a construction which allows of easy and thorough cleaning. i

My invention provides means by which physicians may rapidly and conveniently vary the intensity ot the light. With incandeseeut tilaments a reduction of the current produces a red effect, and, my apparatus' allows the color to be thus varied within wide limits which greatly facilitates eX- aminations for diphtheritic, infiammatory or cankerous affections, in which the affected partsfpresent diiierent colors." It permits several changes-to be made during one insertion.

The following is a description of what I is an elevation of another portionimmedidrawing forms a part ately adjacent on the right thereof. .Figa 4 is a top view of a portion, of 'twice the size it appears in Fig. 1. Fig. 5 is a-corresponding view of anotherportion on the saine large scale.- Fig. G is av bottom view of the same spool-shaped ortion on an intermediate scale, and Fig. g is a diagrammatic representation of the two parts shown in Figs. 4, 5 and 6, and other intermediate andv connecting parts., Fig. 8 is a perspective view Aof a portion which may be substituted for the parts shown in Fi Similar letters of reference indicate corresponding parts in all the figures where. they appear.

I will describe-the construction as condition'ed for use but with the parts held in an upright position the working end upward.

A is the shank or main stem of the operating part a little reduced in diameter and screw-threaded near its upperend.

A1 is a thin piece of copper or other good conducting material, a fraction of a hollow cylinder inserted in a corresponding recess.

A2 is a conducting wire making Contact therewith, extending longitudinally through the shank A and making contact with a screw A3 of conducting material at its lower end.

A4 is apiece of metal corresponding to A1 and setnear it in the shank.` Als 1s a wire connecting it with a conducting screw AG. A curved springA"t of material making also a good conductor is secured by thls screw in theposition shown.

B is a removable cap adapted to be firmly 'engaged with such'screw-thread and having one face B1 widened and horizontally ridged.

forming a plate to serve usefully as a means for pressing down the tongue of the patient' in examining the throat. B2 is a lens set in an aperture in the top of this cap B.

D is an incandescent electric bulb ofthe proper small size and'equi pcd with a suitable filament to produce light. It may be what. is sometimes known as a scart-pin bulb. D1 and D2 are parallel conductors extending therefrom adapted to serve, one for the positive and the other for the negative current in the operating of the lamp.

Pockets are provided in the upper end of the shank A to receive these conductors and hold them in contacteaeli with oneot' the plates A1, A4.-

Whilethe cap B is in place the bulb 1s protected. When the cap is unscrewed and,

removed, the bulb is accessible and by being gently pulled by the 'thumb and finger the wires D1 D2 are drawn out from their sockets and the bulb is thus detached. Such detaching is useful for repairs or exchange.

The lower end of the shank A is enlarged l and screw-threaded as plainly shown in F ig. l and 4receives a hollowlv cylindrmal casing E of suicient length to afford room for a cylindrical rheostatto be presently'described. Thelower end of E isr closed by a removable and revoluble plug or swivel F which has a groove f extending quite aronnd atits mid-length which groove receives loosely the points of two screws Fil and E* set inthe casing E. The swivel F is ofnon- :"f number, are firmly set in the lower head GF,"

conducting material but is traversed longitudinally y a copper Wire F1 which contacts with a metallic screw F2 at ,the inner end. It is also traversed, well insulated therefrom, by another wire F3 which .cont-acts with a screw F1 which latter contacts with and rinly holds a spring F of good conducting inaterial. y G is a spool-shaped piece of hard rubber which performs important `functions. Its ends G1, G are larger than the mid-length portion and. it tightly in the interior of the casing E, the position being adjusted and lirmly maintained by lscrewgtlireading the upper head G1 into corresponding screw-v threads cut in tliednterior of E. ln a cen-` tral bore are two movable contact pieces H1,

H1 urged gently apart in the axial line by` a helical spring H, all of conducting material. These maintain' contacts under all circumstances, the movable piece H1 at the upper end with the screw-A3 and the movable piece H1 at -the lower end with. the

l screw F1. I

In the upper face of the upper head G1. is partially sunk a metallic ring G2. The

`spring AT is always in contact with the top of this ring. A wire G3 of German silver or other feebly conducting material, lcontacts with its lower edge and is coiled around 'the contracted inidlength portion of G Vto form a resistance coil, extending nearly, but not quite the whole length. A series of independent straight vwires Gshown as six in their lower ends projecting slightly below l` and their upper ends extending upward in good conducting metal.

i coat.

the narrow annular space between the resistance-coil G3 and the interior'of the casing E. These wi'res G* are of copper or other One extends the whole length and contacts directly with the ring G2 at any. convenient point not shown. The other five extend upward to diierent lengths and are made to electrically contact i, at different. heights on the helical resistance wire G3.I The partsLexcept where required to contact, are covered with an insulating J and K are respectively the positive and negative insulated wires twisted lightly together tolseive as flexible conductors for currents, the wire J contacting with the wire F1 andthe wire K contacting with the wire F3.v The battery, to be presently described, sends the positive current through the prac- F2. Thence 'it flows through the lower contact H1, the spring-conductor H and upper contact H1 to thescrew A3 andy wire A2 and -thence through the plate-contact A1 intothe wire D1, and thence through the ilament in the bulb D, and produces the light which shines out through the lens B1and performs the useful work required.

f lwith a turn of the wire G8 wires G11, and thus aord an easier route through a good. conductor for a greater or lesser part of the way.

As shown in turned into 'such position that its curved spring F 5 is in contact with one of the conducting wires G1,-the one which contacts at about the mid- Fig. 1 the swivel F has been.

.dle height. The current will flow with the moderate force dile to the resistance imposed by traveling one-half the length of the resistance coil G3. next turned so as to bring its spring-contact `Ffinto engagement with the longer wire G4 shown on the right, the resistance will be greatly decreased and the light made correspondingly more intense, because the current will now have to traverse but a smallportion of the 'e'sistance coil G3. Thus the swivel F and its connections as arranged serve as a 4'rh'eostat specially constructed to serve in a slender tube, by which to regulate the intensity of the light. The lower ends of the wires'G1 are shown as upset Ifthe' swivel F isV or thickened, producing on each a head withI its lower face rounder. They are mainly alike but one is less prominent and the form of the spring F5 is such that -`by turning the swivel F the spring may contact with that wire and give a weak light, o r if preferred by turning F a llittle beyond that position the spring F5 will rest on the non-conducting material of G and the' circuit will bel open,-there will be no light and no waste of the battery'power. This is the condition which will obtain all the time when the apparatus is notin use.

My dry battery M is 'inclosed in a metallic casing E which serves both as a protection and a-conductor. Its .positive terminal M1 projects at the top and gives 'its current to av contact N1 insulated in a pear-shaped plug N of ductor, and making electrical contact with the ositive wire J of the exible conductor leading to the wire F1 in the swivel F. The negative terminal is at the lower end of my -battery,-the current reaches it by using the case L as a conductor. The wire K brings the returning or negative current to the contact N2 which4 traverses the plug N completely insulated, and delivers the curwood or other tolerable non-con' rent to a metal screw-threaded sleeve N3 iso mechanically secured to the metal case L `and also electrically contacted therewith by pins L2.

The lower part of the case L is formed with two angularopen slots Z. wood Pdiametrically traversed by a metal pin P1 matches in the bottom by what is sometimes termed a bayonet-joint,-cngaging or releasing the casing L as it is partially turned. This plug carries a screw-stud P2 on whichl is a nut P3 securing a spring conductor P4. It will be seen that the returning current received from the wire K through the contact N 2 flows radially outward through the engaged metal sleeves L1 and N3 and thence through the pins L2 to the whole body of the casing L and thence radially inward by pin P1 and upward through the stud P2 and spring-conductor P* to.VV the negative terminal in the center of the base of the battery M.

It is of advantage in protecting the bulb and obtaining access and removing when required to make the working end of the casing and the parts carried thereon, removable. I'attach importance to the broad plate Bl beingA formed integral withth'e capl B and ridged transversely because it requires no ladditional culiar construction of part to be manipulated to depress and hold the tongue of the patient. I attach importance to carrying a rheostat in the instrument because it well controls the amount of the light and allows the color to be varied. I attach importance to the pethe rheostatbecause it allows of efi'icient serving in the available space and is specially simple in operation and also allows the device to serveas a switch to entirely stop the flow, and I attach importance to'the long and slender form of the battery and to making thev casing L a conductor as combined because it simplies and cheapens the construction and allows the inclosing case and the stem to be packed side by side in a small space suitable for carrying in the pocket without detaching the parts E and L from each other.

Fig. 8 shows a tip or cap which can bel substltuted for the part B in some' examinations, and especially for some otherwise dif-` A plugy of lficult den-tal operations.

In this the light from the bulb is mirror rcflectedvbackward to the eye of the operator. y I

Modifications may be made without departing from the principle or sacrificingthe advantages of the invention. Different sizes may be made but a single size will serve for a wide range of applications.

Parts of the invention may be used without the whole., The material may be varied. I can use hard rubber or the hard insulating material known in the electrical trade as fiber for the insulating parts, and for other parts can use met-al or other air-tight and water-tight material which will endure heat, for thorough disinfecting. I claim as my invention z* l. In an aseptic lamp the combination of a longitudinally extended casing inclosing a battery of small cross section and relatively great length, a slender stemcarrying a bulb and insulated electric conductors, 4a revoluble plug and a rheostat having wires of different leiwthsrevolved therewith, combined substantia lly as herein specified.

2.- In an aseptic lamp the combination of a long and slender battery, a flexible .electric conductor from' the same to a slender stem, a'n extended plate on such stem provided with transverse ridges, an incandescent electric lampvin its interior, a removable cap parrying a lens and adapted to protect such am detalehable screws in such stem and a rheostat formed by the aid of wires 'of different lengths carried in such -swivel and contacting with such helical wire, land a curved spring F5 kept in constant connection with the battery, all adapted to serve substan- `tially as herein specified.

Signed at New York city this 9 day ot April 1907.

' GEORGE' C. WERNER. Witnesses: p' f THOMAS DREW STETsoN, -S. I-I. STODDER.

a helical wire H, a swivel confined by

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