US829331A - Lantern. - Google Patents

Description

PATENTED AUG. 21

W. S. HAMM.

LANTERN. APPLICATION FILED NOV. 2, 1904.

2 SHEE TSSHEET 1.

CQQQeQQ eooeaaa witneowo 5 7 61 than; 5

No. 829,331. PATENTED AUG. 21, 1906.

W. s. HAMM.

LANTERN.

APPLICATION FILED NOV. 2, 1904.

2' SHEETS-SHEET 2.

abhor/mugs THE NORRIS PETERS C0,, WASHINGTON, D. c.

UNITED sTA'rns PATENT orrion.

I/VILLIAMS. HAMM, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ADAMS AND WESTLAKE COMPANY, OF ILLINOIS.

LANTERN.

Specification of "Letters Patent.

Patented Aug. 21, 1906.

Application filed November 2,1904. Serial No. 231,104.

ToaZZ whom it may concern:

Be it known that I, WILLIAM S. HAMM, a citizen of the United States, residing at Ohicage, in the county of Cook and State of Illinois, have invented new and useful Improvements in Lanterns, of which the following is a specification.

This invention relates to means whereby the extinguishment of the flame is prevented as'the lantern is raised, lowered, or swung, as

in the actions of signaling, 01 when subjected to a sudden jerk or jar.

Heretofore when a railroad hand-lantern of the general class to which this improvement belongs but unprovided with my invention was subjected to jerks or jars the flame was immediately extinguished, the consequence often being that great danger resulted by the-failure of a signal to act at a critical moment, and, in fact, all lanterns, with the exception of certain of the tubular type, were exposed to this danger, the cause being that when the lantern was jerked or jarred the air was caused to move toward the top of the lantern and rush past the flame, thereby robbing the flame of the amount necessary to support combustion. I have therefore invented a device whereby air-currents entering the perforated hoop of the lantern at all times sufficiently feed the flame regardless of the sudden jerks or jars to which the lantern is liable to be subjected, and especially prevents a vacuum at the combus- I tion-point, which necessarily results in the immediate extinction of the flame.

In the accompanying drawings, Figure 1 is a vertical section of a lantern, showing my invention. Fig. 2 is a plan thereof. to 8, both inclusive, show modifications.

Similar reference characters indicate simi- 7 lar parts in the respective figures.

Referring more particularly to Figs. 1 and 2, 1 is the base-of the lantern, to which are attached guard-wires 2, connected with the annular hoop 3 in any suitable manner, the

wires extending upwardly to form the cor-j pensed with.

rect shape of the guard and uniting with the series of horizontal rings 4.

in the wall of which is a slot 7 of a bayonet- Figs. 3

To the upperf one of the latteris hinged the cap 5. Formed at'the lower part of the oil-pot 6 is a cup 6, 1

8, the free end of the spring being adaptedto fitover a pin 9, projecting from the hoop 3 and the slot 7 over a similarly-projectingpin 9 The hoop above the cup 6 which fits over it, is furnished with a row of perforations 10, through which the necessary supply of air is admitted to the interior of the globe 11 and to the flame to sustain combustion.

A represents a cap having an outer flange 12, which rests upon the upper edge of the hoop 3. The cap is furnished with a shoulder 14, which fits the interior of the hoop, and with a solid skirt 15. The top of the cap is perforated at 16, so as to fit in close proximity to the top of the burner-body, a space 19 being left between the cap and the burner for the admission of air into direct or intimate union with the flame. In this form of my invention the opening through which the air is thus admitted to the flame is provided by making the opening in the cap larger than the diameter of the part 20 of the burner; but an equivalent construction is seen in Figs. 3, 4, and 6, in which the air is admitted to the flame by means of a row of perforations 19 near said part of the burner. In each form the air is deflected and carried by the skirt through the opening or perforations into intimate union or contact with the flame, the operation in each case being substantially identicalthat is to say, as the lantern is jerked or jarred the air entering the perforations 10 in the hoop 3 instead, as would be the case were the cap A not used, of rushing up through the top of the lantern and robbing the flame of the air necessary to support combustion is directed or' deflected to thepoint of combustion, thus preventing a vacuumat that point and supplying the necessary air for the maintenance of the flame.

In Fig. 5 holes 17 are shown in the-cap A atv the base of the skirt, their function being to admit air to the interior of the globe to keep it from heating. These holes may be used with the cap in all of the forms shown, or dis As thus far described the cap A is intended to be removable from the body of the lantern as a separate adjunct thereto, it being clamped between the hoop and the globe ,but in Fig. 6 the cap is shown permanently fixed. to the lantern-body. When so used, air-openings may be employed in either of the forms here inbefore described.

In Fig. 7 the invention is shown used with that form of globe in which the lower flange is dispensed with.

While, as shown, the cap forms a convenient seat for the globe,,it is obvious that it is .not necessary it shall be constructed to serve such purpose. For example, the upper edge of the body-hoop may be made to form the seat for the globe and the cap may be attached to the body-hoop in any manner permitting of the performance of the functions herein described. Such a construction is shown in Fig. 8, in which the annular hoop 3 is offset at 3 there being formed a seat for the shoulder 14 of the cap A, and the upper portion 3 of the hoop constituting a seat for the globe.

Having thus described my invention, I claim 1. In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap having at its top means for admission of air into close proximity ,to the point of combustion, and walls for deflecting currents of air received within the hoop to that point, substantially as set forth.

2. In a lantern, a perforated body-hoop and an oilpot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap having at its top means for admission of air into close proximity to the point of combustion, and walls for deflecting currents of air received within the hoop to that point, said cap being further provlded with means for admitting air from within the hoop to the interior of the globe for the purpose of preventing overheating of the latter, substantially as set forth.

8. In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap forming a seat for the globe and having at its top means for admission of air into close proximity to the point of combustion, and walls for deflecting currents of air re ceived within the hoop .to that point, substantially as set forth.

4. In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap forming a seat for the globe and having at its top means for admission of air into close proximity to the point of combustion, and walls for deflecting currents of air received within the hoop to that point, said cap being further provided with means for admitting air from within the hoop to the interior of the globe for the purpose of preventing overheating of the latter, substantially as set forth.

5. In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oi1-pot, combined with a cap having a solid skirt portion and a top providing means for admission of air into close proximity to the point of combustion, the oil-pot and cap furnishing surfaces for deflecting or upwardly guiding currents of air received within the hoop to that point, substantially as set forth. I

6. In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap forming a seat for the globe and having a solid skirt portion and a top providing means for admission of air into close proximity to 1 the point of combustion, the oil-pot and cap furnishing surfaces or walls for deflecting or upwardly guiding currents of air received within the hoop to that point, substantially as set forth.

7 In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap forming a seat for the globe and provided with a solid skirt portion and a top furnishing means for admission of air into close proximity to the point of combustion, the oil-pot and cap constituting walls or surfaces for deflecting or upwardly guiding currents of air received within the hoop to that point, said cap being further provided with means for admitting air within the hoop to the interior of the globe for the purpose of preventing overheating of the latter, substantially as set forth.

8. In a lantern, a perforated body-hoop and an oil-pot and its burner supported thereby, an annular space being left between the hoop and the oil-pot, combined with a cap forming a seat for the globe and provided with a solid skirt portion and a top furnishing means for admission of air into close proximity to the point of combustion, the oil-pot and cap constituting walls or surfaces for deflecting or upwardly guiding currents of air received within the hoop to that point, said cap being further provided with means for admitting air within the hoop to the interior of the globe at its base for the purpose of preventing overheating of the latter, substantially as set forth.

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

WILLIAM S. HAMM.

Witnesses:

EDGAR ANDREWS, P. G. EMERY.

Images