US326427A

US326427A - Overflow device for pump-lamps

Info

Publication number: US326427A
Authority: US
Publication date: 1885-09-15
Anticipated expiration: 1902-09-15

Description

(No Model.) I 2 Sheets-Sheet 1.

T. W. HAMILTON.

OVERFLO-W DEVIGE FOR PUMP LAMPS. No. 326,427. Patented Sept. 15, 1885.

WITNESSES: INVENTOR QWMW I j BY ATTORNEY (No Model.) 2 Sheets-Sheet 2.

T. W. HAMILTON.

OVERFLOW DEVICE FOR. PUMP LAMPS.-

No. 326,427. Patented Sept. 15, 1885.

v I I Q3/2194 ATTORNEY u. PETERS, Pttwuttw m m Washington. u. c.

I Unrren STATES PATENT ()rrrcs.

THOMAS XV. HAMILTON, OF SPRINGFIELD, MASSACHUSETTS.

OVERFLOW DEV |CE FOR PUMP-LAMPS.

IJPECIFICATIQN forming part of Letters Patent No. 326,427, dated September 15, 1885.

Application filed July 13, 1885. (No model.)

To all whom it may concern:

Be it known that I, THOMAS WV. HAMILTON, a citizen of the United States, residing at Springfied, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Overflow Devices for Pump-Lamps, of which the following is a specification.

This invention relates to improvements in overflow devices for pump-lamps, the object being to provide for such lamps an improved adjustable overflow for conducting oil from one reservoir to the other, and improved means for regulating said overflow according to the number of hours the lamp may be required to burn; and, furthermore, to provide in such lamps improved means for preventing the wick from becoming deranged.

In the drawingsforming part of this specification, Figure 1 is a perspective View of a pump-lamp, showing a part of the side and top of the upper reservoir, the side of the wick-well, and a part of the burner broken away, embodying my improvements. Fig. 2 is a plan view of the lamp, indicating in dotted lines the form and location of certain parts in the interior thereof. Fig. 3 is a perspective view of the part of the lamp in which the overflow-pipe is located and of said pipe and its swinging connection with the lamp. Fig. 4 is a side view of thelifting-rod for'the overflow-pipe and of a part of the support for said rod, and a side view, partly in section,of the overflow-gage, showing its operative relation to said rod. Fig. 5 is a side view of the overflow-gage.

In the drawings, A is the lower or main oilreservoir of the lamp, on the top E of which is constructed the upper reservoir,having said top E for its bottom by securing the side piece, B, on thelatter and attaching the cover 'D to said piece B.

' The burner t is connected in the usual way with the cover or top D of the upper reservoir, and to the under side of the said top D is secured the circular wick-well h, which extends downward nearly to the bottom E, whereby oil is permitted to flow under and upward within it to the wick f. If need be,

openings 3 may be made in the lower edge of the wick-well to still further facilitate thefree flow of oil to the wick. The purpose of the well h is to cause the wick to retain the folded position shown in Fig. 1, and not to become twisted and deranged by the agitation of the oil, and from other causes, whereby its absorbent and oil-conducting qualities are more or less impaired. A metallic strip, m, extends between the side of thewick-well and the side B of the upper reservoir to prevent the oil, as it escapes from the pump 8 from being thrown on to the wire-gauze 8, Fig. 2, which covers the peek-hole in the top D, thereby serving to keep said gauze clean, so that one may clearly see the contents of the upper reservoir through it.

A suitable pump, 8, is fixed in the plate E, its lower end extending to or nearly to the bottom of reservoir A, and it is adaptedtobe operated in the usual way to draw oil from said lower reservoir and to discharge it into said upper reservoir.

The aforesaid gauze-covered peek-hole on the top D is provided with a pivoted cover, 7, which isshown swung off from said hole in Fig. 2. The usual screw-cap,5,is provided to stop the opening through which the reservoir A is supplied with oil.

An air-pipe, (I, is set in the plate E to facilitate the free movement of the oil from one reservoir to the other.

The hereinbelow-described adjustable overflow devices are provided for the purpose of drawing off all surplus oil in excess of a given quantity that may have been pumped into the upper reservoir from the lower one, whereby said surplusis returned to the latter, leaving a certain amount of oil in the upper reservoir to supply the burner t for a definite length of time,'be it more or less, said amount of oil for burning. being determined by the height of the open end of the overflow-pipe 6 above the bot tom of the upper reservoir, and the proper position of the end of said pipe is fixedby a variable gage which sets it to leave oil which will supply the burner for one or more or less hours, as may be desired.

A trough-like depression, a, is formed in the bottom of the upper reservoir, in which the overflow-pipe e is hung, so that its open end, when it lies at an incline, may be low enough to draw nearly, if not quite, all of the 5 oil out from said reservoir.

In the side of the trough a, at one end, is tightly secured a cylindrical piece, I), which serves the purpose of the barrel of a cook or faucet, for in said piece b is fitteditightly by grinding the hollow plug 0, (see dotted lines in Fig.3,) and said plug is secured to the end of the overflow-pipe 6, through the latter communicating with the hollow passage in the plug in such a way that liquid entering the open end of said pipe is discharged at the end of the plug a. plug 0 is placed in the piece I), as in Fig. l, and the end ofa spring, 6, is placed against the end of the plug, thereby holding it in close contact with said barrel -piece b, but leaving it free enough to be turned by the pipe 6. the bottom of the upper reservoir and within the lower one, A.

Near the side of the trough and to one side thereof, on the bottom of the upper reservoir, is fixed a support, 1;, having a tubular hearing or guide, a, thereon for the liftingrod y, which passes through it, as shown, said rod being properly fitted therein to move rather tightly, so that the rod willbe frictionally held in any position up or down to which it may be moved. Said lifting-rod yhas a flat arm, a, secured thereon near its lower end, in which is a slot, 9, with which a pin, an, attached to the end of the overflow-pipe e, engages, whereby said pipe has its free end moved up and down and set in different positions above the bottom of the upper reservoir by sliding the rod y up and down.

The foresaid gage for setting the end of the pipe 6 as above described is shown in Figs. 4 and 5, and is constructed and used as follows: A tube, 14, has a series of perforations, 15, therein-at different distances from the end. A plunger, 10, having a suitable head, is fitted to slide in the tube 14, and to the head thereof is secured a spring, 12, having a pin, 13, attached to it, whose point enters either of said perforations, thereby securing the tube on the plunger in different positions, whereby the. end of the plunger is caused to be nearer to or farther from the open end of the tube 14, the latter being adapted by its internal diameter to be placed on the end of the lifting-rod y and have its end brought down against the top of'the guide-bearingn. Thus, for example, (referring to Fig. 4,) the pin 13 being in a certain perforation in tube14, the end ofthe plunger is fixed at a distance from the end of the tube determined by the hole in which said pin engages. In practice, therefore, to prepare the lamp to be lighted and to give it oil, for, say,

two hours illumination, the upper end of the 55 rod y, which projects somewhat above the top D, is seized and drawn upward, thereby liftas shown, the passage.

The Y The discharge end of plug cis below I trough ing up the free end of the overflow-pipe e. The pump sis then operated to transfer somewhat more oil than is required for said term of burning from the lower to the upper reservoir. The said gage is then adjusted by sliding the tube on the plunger 10 and securing the two as aforesaid, so that when the end of the tube is placed on the end of the rod 9 and pressed against the end of the bearing n the rod is driven down by the impact of the end of the plunger therewith,and the open end of the pipe 0 is thereby moved down to such a height above the bottom of the upper reservoir as will, when all the oil in the latter which is above the level of the said end of the pipe 6 has run off through the latter, leave the required quantity to supply the burner t for the time to which the gage is set.

It is obvious that the end of the pipee may be set at different heights from the bottom of the upper reservoir, and thereby leave more or less oil in the latter without using the gage as aforesaid; but to attain accuracy it is preferable to employ a-gage.

What I claim as my invention is l. The hereindescribed lamp,having an upper and a lower reservoir, the pump a, the trough a in the bottom of the upper reservoir, the overflow-pipe e,having a hollow pivotal connection with the side of said trough, the lifting-rod y, connected with the free end of said pipe, and the lifting-rod support 1), combined and operating substantially as set forth.

2. The herein-described lamp,havi ng an upper. and a lower reservoir, the pump the a inthebottom of the upper reservoir,

the barrel lg, fixed in the side of said trough, the hollow plug c,fitting said barrel, the overflow-pipe e, connected to said plug, the liftingrod y, having thearms z engaging with the free end of said pipe, and the lifting-rod support 1), having the bearingn thereon,conib.ined and operating substantially as set forth.

3. The combination, with the upper and lowerreservoirs of the lamp and vibratory overflow-pipe r, of the lifting-rod support 0, having the bearmg n thereon,the lifting-rod 3;, connected with the free end of said pipe and passing through said bearing, and the pi peed jnsting gage consisting of the plunger 10,having the spring 12 thereon, provided with the pin 13, and the tube 14, fitting on said plunger and havinga series of perforations in its sides, substantially as set forth.

4. In a pump-lamp, the combination, with the vibratory overflow-pipe e, the lifting-rod y, and the support 1), having the frictional hearing it thereon, of the pipe-adjusting gage consisting of the perforated tube 14, and the plunger 10, having the spring 12 thereon provided with the pin 13 to engagein the perforations in said pipe.

THOMAS W. HAMILTON. Witnesses:

H. A. CHAPIN, J. D. GARFIELD.