US843903A - Incandescent-gas-lamp bulb. - Google Patents

Description

PATENTED FEB. 12, 1907.

I G. M. LUNGREN. INCANDBSGENT GAS LAMP BULB.

APPLICATION FILED MAB. 28.1905.

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G. M. LUNGREN; v

INOANDESOENT GAS LAMP BULB. APPLICATION FILED MAR. 28,1905.

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PATBNTED FEB. 12, 1907.

0.- M. LUNGREN. INGANDESGENT GAS LAMP BULB.

APPLICATION FILED MAR. 28.1905.

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CHARLES M. LUNGREN, OF BAYONNE,

NEW JERSEY, ASSIGNOR TO THE SAFETY CAR HEATING & LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

INCANDESCENT-GAS-LAMP BULB.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed March 28, 1905. Serial No. 252,606.

To a. lull/07721 it Duty concern/.-

Be it known that 1, CHARLES M. LUNGREN, residing at Bayonne, in the county of Hudson and tate of New Jersey, have invented certain new and useful Improvements in Incandescent-Gas-Lamp Bulb, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to gas-lamps and the like, and more specifically to illuminating devices of this general type adapted for use in connection with car-lighting systems.

One of the objects thereof is to provide a device of the above type characterized by increased e'l'liciency, simplicity, and convenience.

Another object is to provide a device of the above type in which the globe, mantle, and associated parts may readily be detached or placed in position as a whole, with the chances of injury to the parts reduced to a minimum.

Another object is to provide a device of the type last above mentioned in which either the globe alone or the globe with the mantle is at will readily detachable.

Another object is to provide a practicable device of the above type in which rattling at the joints between the relatively detachable parts is obviated.

Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of ele ments, and arrangement of parts which will be exemplified in the device hereinafter described and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, wherein are shown one or more embodiments of the several features of my invention, Figure 1 is a sectional elevation of an ineandecent gaslamp. Fig. 2 is a similar view of the lower portion of a lamp-globe of different form. Fig. 3 is a sectional detail view of a part shown in Fig. 1. Fig. 4 is a plan of the same. Fig. 5 is a sec 'onal elevation of certain parts shown in Fig. 1, the same appearing isolated from the ccacting members. Fig. 6 is a sectional elevation of a slightly-different form of gas lamp. Fig. 7 is a detail view showing l i l j l l l l l certain parts appearing in Fig. 1 in another position.

Similar reference characters refer to similar parts throughout the several views.

As tending to render better understood certain features of my invention it may here be noted that in gas-lamps employing what is commonly known as an incandescent mantle the latter part is, on account of its fragile nature, often broken while being mounted upon aburner. The frequency of this occurrence is increased owing to the fact that it is generally impracticable to employ skilled labor to place these parts in position and with the ordinary type of incandescent gas-lamp the harsh use to which the mantle is thus subjected often proves disastrous. Moreover, I have found that it is frequently desirable to remove the globe, as for cleaning or replacing the same, and that in such treatment, with the ordinary type of lamp, the mantle is frequently broken, either through a direct blow or through the excessive jarring or shock to which it is subjected. I have also found that when incandescent lamps are employed. in car-lighting systems, to which use my inventi on is peculiarly adapted, the rattling of the parts on account of the vibration and jarring of a moving train is not only a constant source of annoyance, but is likely at any time to cause the breaking or chipping of the globe. The above and other defects are remedied 'n constructions of the nature of that hereinafter described.

Referring now to Fig. 1 of the drawings, there is shown at 1 a conduit having fixed thereon a casing 2 for a purpose hereinafter described. The lower end of conduit 1 or gas-nozzle, as this part may be termed, is preferably provided with. a coarse rolled thread adapted to coact with a similar thread formed upon the sleeve-like portion 3 of what may be termed a spider 4. It may here be noted that by the term gas-nozzle, as used throughout this specification and the following claims,is meant a part adapted to discharge gas in condition for use for illuminating purposes that is, gas which is in condition to be burned without further mixing with air or other treatment. This member, as shown more clearly in Figs. 3 and 4 of the drawings, comprises the arms 5, connecting the sleeve 3 with a ring 6, having a downwardly-turned lip or flange 7, preferably provided with a coarse thread for a purpose hereinafter described. Secured to the supporting member or spider 4 is a translucent globe 8, which may be of any desired shape. It may here be noted that the term globe is used throughout this specification and the following claims in a broad sense as denoting any member adapted to be used in conjunction with a source of light to protect the same, aid in combustion, or affect the quantity or distribution of the light emitted. Globe 8 is rigidly and yet detaehably secured to the downwardly-turned lip 7, preferably by means of a metallic band 9, cemented, as shown at 10, to theupper portion ofthe globe. This band, as shown in Fig. 5 of the drawings,

is preferably provided with a number of slots,

or cuts 11 and is formed of resilient material in such manner as to tend to spring out and firmly engage the coacting lip 7. Mounted upon the sleeve 3 of spider 4 is what may be termed a spool 12, having secured thereto a pendent mantle 13, adapted to coact with the gas-nozzle formed on conduit 1. Spool 12 is preferably threaded upon its inner surface, so as to engage with the threaded outer surface of the sleeve. By thus mounting the mantle upon the gas-nozzle, as above dofined, it is in condition to coact with gas discharged thereby without necessity for the interposition of mixing means or other devices. Secured to or formed about the casing 2 is a ring 14, provided with an outwardly-projecting flange l5, perforated as shownat 16 and 1.7. Pivotally mounted upon this ring is a latch 18, the downwardly-projecting end 19 of which is forced into its lowermost position by means of spring 20, this position being determined by a stop 21. The latch 18 is adapted to pass through the perforation 17, and formed in the ring 6 is a corresponding opening 22, adapted in certain positions of the spider to register with perforation 17. The casing 2 is perforated, as shown at 23 and 24, in order to permit a free circulation of air, which in this illustrative embodiment enters through perforations 16 and passes between the spider-arms 5, as indicated by the arrows, and circulates around the mantle 13, passing out through the openings 24 and 23. It will readily be seen that in this manner a free circulation is provided and the desired amount of combustion is fully provided for and yet substantially no light permitted to escape without passing through the globe.

It may here be noted that by the expres sion detachable connection, as used throughout the following claims, is meant a connection between two parts such that the same are readily detachable, and by the term inoperative, as used in connection such connection wherein the detachability of these parts is restricted.

The operation of the above-described em bodiment of my invention is as follows: Assuming that the parts are in their assembled condition and it be desired to detach the globe, together with the mantle and the parts con necting these members, the globe is merely turned relative to the conduit 1 or equivalent part, the spider 4 thus being turned about the gas-nozzle, and the entire globe spider, and mantle, or bulb, as these members may be collectively termed, is detached. Under these circumstances no relative movement takes place between the spider and the globe, inasmuch as the joint between the lip 7 and the band 9 is so tight as to hold these parts in fixed position, while the spider is turned about the conduit 1. This result is accomplished by virtue of the extreme pressure between these members by reason of the fact that the contacting surfaces thereof are considerably greater or that the distance from the axis of rotation exceeds that in the case of the oint between the spider and the gas-nozzle, any one of these factors being adapted to accomplish the desired result, but their combined effect rendering this action more certain. With the bulb detached, using the term as above described, a new bulb may be placed in position, with the chances of injury to the mantle reduced to a minimum.

The above method of operation is under the assumption that the parts are in the relative positions indicated inFig. 7 or that the latch 18 has been raised. If it be desired to remove the globe alone, as for purposes of cleaning, assuming, as will generally be the case, that the globe becomes soiled or clouded during the lifetime of the mantle, the latch 18 is left in looking position, in which it is snapped downwardly into the perforation 17 in the spider. The globe is then unscrewed, rotary movement of the spider being pre vented by the latch 18 and the globe alone, if the thread be formed upon the globe, or, in the construction shown, the globe with the band 9, is removed from the lamp. The globe may then be cleansed upon both its inner and outer surfaces. The globe is then again turned into its assembled position within the lip 7, as shown in Fig. 1.

It is intended in the preferred method of using embodiments of my invention that the bulbs will constitute separate articles of manufacture, as is at present the case with similar devices in electric-lighting systems, and that the same will be shipped in the form indicated in Fig. 5 of the drawings and used as separate units in connection with the lighting systems wherein they are installed. Thus if any of the parts of a bulb become with this expression, is meant the state of 1 damaged so as to render the same inoperative it is removed by turning about the gas- I the shield 33, and resting about the lower nozzle and discarded, returned to the factory, or any other desired disposition made of the same. A new bulb is then placed in position, the same being mounted upon the gasnozzle merely by turning it about the same until it rests against the flange 15 and is locked in' position by the latch 18.

It will thus be seen that I have provided a simple and efficient device well adapted to accomplish the objects of this invention. The several parts are of simple and inexpensive construction and yet durable and ellicient in action. Moreover, this device may be employed in connection with lighting systems now in use, slight alterations of the parts only being necessary. By means of a device of the above nature the chances of injury to the mantle are reduced to a minimum in the placing of the same in position, during shipping or storage thereof, or when the globe is removed. It will also be seen that by means of my invention the necessity for any handling of the mantle by unskilled labor is entirely done away with, as in the preferred method of using embodiments thereof the parts comprising the individual bulb are assembled at the factory and, excepting in the case of cleaning the globe, these parts are thereafter ban .l d as a unit. In fact, the entire device stands in a similar relation to gas-lighting systems to the relation of the incandescent-clectric-lamp bulb to systems of electric lighting and possesses many of the characteristic advantages of the last-mentioned device. It will also be seen that the bulb by reason of its mounting adjacent the gas-nozzle may be of the cheapest and most comp ct construction, as no mixing means thus required to be either formed upon the bulb and ti us attached and detached therewith or necessarily interposed between the point of attachment of the same and the mantle.

In Fig. 2 of the drawings is shown a slightly different form of globe 25, which is open to the air, as shown at 26, thus providing a free draft, but sacrificing some of the advantages oi' the construction. above described. A

In Fig. 6 is shown another embodiment of certain features of my invention, in which 27 represents a casing or chamber adapted to be secured directly to a gas-conduit, as shown at 28. The casing 27, which is provided with a suitable deflector 29, has tapped within its lower portion a gas-nozzle 30, this latter part supporting a sieve or screen 31 in a position adapted to perform its well-known functions. Secured to the lower surface of the casing 27, as by means of screws 32, is a ring or shield 33, having secured within its outer flange 34, as by means of set-screws 35, a globe 36. An annular support 37 is mounted beneath portions thereof is a threaded lip 38, formed upon what may be termed a spider 39, the lower portion of which has a threaded connection with the gas-nozzle 40. A mantle ll is mounted about gasnozzle 40 in a manner substantially identical with that of the mantle mounting previously described. Threaded upon the upper lip of the spider 09 is a band 42, cemented, as shown at 43, about an inner globe 44.-

The method of use of the last-described embodiment should be largely obvious from the above description thereof, taken in connection with that relating to the embodiment first described.

Several of the advantages of the firstde scribed embodiment are inherent in these later set forth.

As many changes could be made in the above construction and many apparently widely different embodiments of my invention could be mane without departing from the scope thereof, I intend that all matter contained in the above description or shown in the accoin mnying drawings shall be interpreted as illustrative and not in a limiting sense.

Having oescribed my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A de ach able gas-lamp bulb comprising a sup rorting member detachably secured to the lower end of a gas-conduit, a mantle mounted thereon, and a globe detachably mounted upon said supporting member and adapted to be detached without affecting the relation said gas-mantle and said gasconduit, said. member, mantle and globe being ada i. ed to be removed a unit from said conduit.

2. In a device of the class described, in combination, a gas-conduit, a supporting member detachably supported thereby, a mantle detachably mounted upon said supporting member, and a globe detachably secured. to said supporting member, said supporting member being free from coinmunication with the passage through said conduit, said member, mantle and globe being adapted to be removed as a unit from said conduit.

3. In a device of the class described, in ccmbinaticn, a conduit terminating in a gasnczzle, a sup orting member detachably mounted. upon the lc wer portion of said. conduit, a mantle detachably mounted upon said su iporting member, and a globe detacliably mounted. upcn said supporting member adapted to be removed without affecting the relative position of said mantle and said nczzlc, said conduit having an unbroken ,...ssage from the point at which said supporting member is mounted thereon to and through said gas-nozzle, said member, mantle and globe being adapted to be removed as a unit from said conduit.

4. A detachable gas-lamp bulb, com',.';ris .ing a supporting member, a translucent globe detachably mounted directly thereto, a mantle and a mantle-support, said mantlesupport being mounted directly upon said supporting member, said member, mantle and globe being adapted to be removed as a unit from a conduit.

5. A gas-lighting apparatus comprising in combination, a vertical gas-conduit terminating in a nozzle, a combined. globe and mantle-support carrier having a vertically-extending central hub adapted to be detachably secured to said conduit adjacent its termination, a mantle-support mounted upon said hub and a mantle arranged to interiorly receive the gas issuing from said. nozzle, said carrier providing an outer portion adapted. to carry a globe, and a globe detachably secured to said portion, whereby said globe, mantle and support may be removed as a unit from said conduit.

6. In a device of the class described, in combination, a conduit terminating at its lower end in a gas-nozzle, a supporting mem ber detachably mounted upon said nozzle, a mantle-supporting member mounted upon said supporting member substantially opposite said gas-nozzle, and a translucent globe detachably mounted upon said. supporting member, said member, mantle and globe being adapted to be removed as a unit from said. conduit.

7. A detachable ga -lamp bulb, comprising a supporting member having a centrally interiorly extending threaded portion, a mantle, a mantle-support upon which said mantle is directly mounted, said mantle-support being tapped upon the threaded portion of said supporting member.

8. In a device of the class described, in combination, a conduit provided with a gasnozzle, a supporting member having a detachable connection about mantle, a mantle-support upon which said mantle is directly mounted, said mantle-sumport being adapted to be mounted upon said supporting member with said mantle opposite said gas-nozzle and a translucent globe secured to said supporting member and detachable with reference thereto.

9. In a device of the class described, in combination, a conduit provided with a gasnozzle having a threaded portion, a supporting member provided with an internal thread adapted to coact with the threaded portion of said gas nozzle and with an external thread, a mantle, and a mantle-support having said mantle mounted directly thereon and provided with an internal thread adapted to act with the external thread upon said supporting member.

said gas-nozzle, a

10. In a device of the class described, in combination, a conduit provided with a gasnozzle having a threaded portion, a supporting member provided with an internal thread adapted to coact with the threaded portion of said gas-nozzle and with an external thread, a mantle, a mantle support having said mantle mounted directly thereonand provided with an internal thread adapted to act with the external thread upon said supporting member, said supporting member being provided with a depending portion having a thread. formed thereon and a globe provided with means adapted to coact with said lastmentioned thread and support said globe from said supporting member.

11. In a device of the class described, in combination, a supporting member adapted to be detachably connected to a relatively fixed member, a globe detachably connected with said supporting member, one of said detachable connections being normally inoperative, and means adapted simultaneously to render inoperative the other of said detachable connections and render said normally inoperative connection operative.

12. In a device of the class described in combination, a supporting member adapted to be detachably connected with a relatively fixed member, a globe detachably connected 9 with said supporting member, one of said. detachable connections being normally inoperative and a single means adapted simultaneously to lock the other of said connections, and render operative said normally inoperative connection.

13. In a device of the class described, in combination, a supporting member, a mantle, a mantle-support upon which said mantle is mounted, said mantle-support being mounted upon said supporting member and said supporting member being adapted to be detachably-connected with a relatively fixed member, a translucent globe having a detachable connection with said supporting member, one of said detachable connections being normally inoperative, and a single means adapted to render inoperative the other of said connections and render operative said normally inoperative connection.

14.. In a device of the class described, in combination, a supporting member having means adapted to mount the same upon a relatively fixed member and adapt the same to be detached from said fixed member by a relative turning movement, a globe mounted upon. said supporting member adapted to be detached therefrom by a relative turning movement and means adapted to prevent said relative turning movement between said supporting member and the relatively fixed member upon which it is mounted.

15. In a device of the class described, in combination, a supporting member, a relatively fixed member, means adapted to mount said supporting member upon said relal tively fixed member and adapt the same to 3 be detached from said fixed member by a 1 relative turning movement, a globe mounted upon said supporting member and adapted 1 to be detached therefrom by a relative turn- 3 ing movement, and releasable means adapted to prevent said turning movement be- I tween said supporting member and the relal tively fixed memb er up on which it is mounted.

16. In a device of the class described, in combination, a supporting member adapted l to be mounted upon a relatively fixed member, means adapted to release said supporting member from said fixed member upon a relative turning movement taking place in one direction and means adapted positively to lock said supporting member against movement in any direction and arranged to be brought into engagement With said member upon the same being turned in the opposite direction.

17. In a device of the class described, in combination, a fixed member, a supporting member adapted to be mounted thereon, means adapted to release said supporting, member from said fixed member upon being i turned in one direction with reference to said I fixed member, means adapted, upon being I turned in another direction, positively to lock said supporting member against movement in any direction, a globe mounted upon said supporting member and means adapted to render said globe detachable therefrom upon said supporting member being locked. l

18. In a device of the class described, in combination, a fixed member, a supporting member adapted to be mounted thereon, means adapted to release said supporting member from said fixed member upon being turned in one direction with reference to said fixed member, means adapted, upon being turned in the opposite direction with refer ence to said fixed member, positively to lock said supporting member against movement in any direction, a translucent globe mounted upon said supporting member, means adapted to render said translucent globe detachable with reference to said supporting member upon the latter member being looked, a gas-nozzle formed upon said fixed member, a mantle and a mantle-support upon which said mantle is mounted, adapted l to be detachably connected with said supporting member and hold said mantle in operative relation to said gas-nozzle. l

19. In a device of the class described, in combination, a conduit, a supporting member mounted thereon and adapted to be re leased therefrom by a relative turning movement, spring-pressed means adapted in opl erative position to lock said supporting member against said turning movement and a translucent globe mounted upon said supporting member and adapted to be detached therefrom by a relative turning movement.

20. In a device of the class described, in

combination, a conduit terminating in a gasnozzle having a threaded portion, a supporting member mounted upon said threaded portion and adapted to be detached therefrom by a relative turning movement, a spring-pressed latch mounted in fixed relation to said conduit adapted to engage and lock said supporting member against movement in any direction, a mantle, a mantlesupport upon which said mantle is mounted,

said. mantle-support being detachably mounted upon said supporting member about said gas-nozzle with said mantle in operative relation to said gas-nozzle, and a translucent globe mounted upon said supporting member adapted to be detached therefrom by a relative turning movement.

21. In a device of the class described, in combination, a conduit terminating in a gasnozzle having a threaded portion, a supporting member mounted upon said threaded portion and adapted to be detached therefrom by a relative turning movement, a spring-pressed latch mounted in fixed relation to said conduit adapted to engage and lock said supporting member against movement in any direction, a mantle, a mantlesupport upon which said mantle is mounted, said mantle-support being detachably mounted upon said supporting member about said gas-nozzle with said mantle in operative relation to said gas-nozzle, a globe and a threaded band fixed upon said globe adapted to coact with a threaded portion formed upon said supporting member.

22. In a gas-lighting apparatus, a combined globe and mantle-support comprising a tubular inner member having its end exteriorly and interiorly threaded, and an outer portion terminating in a downwardly-turned threaded rim adapted to carry a globe.

23. In a gas-lighting apparatus, an inverted burner having an exteriorly threaded lower end, and a combined globe and mantlesupport comprising a tubular inner member having interiorly-disposed threads adapting the same for attachment to said burner end,

and having exteriorly disposed threads adapted to detachably carry a mantle and an outer annular member adapted to carry a globe.

In testimony whereof I affix my signature in the presence of two witnesses.

CHARLES M. LUNGREN. WVitnesses:

A. C. MOORE, G. H. \VARFIELD.

TIO

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