GB662468A - Improvements in miners' lamps - Google Patents

Improvements in miners' lamps

Info

Publication number
GB662468A
GB662468A GB6708/49A GB670849A GB662468A GB 662468 A GB662468 A GB 662468A GB 6708/49 A GB6708/49 A GB 6708/49A GB 670849 A GB670849 A GB 670849A GB 662468 A GB662468 A GB 662468A
Authority
GB
United Kingdom
Prior art keywords
ring
fount
dome
neck
rods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6708/49A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koehler Manufacturing Co
Original Assignee
Koehler Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koehler Manufacturing Co filed Critical Koehler Manufacturing Co
Publication of GB662468A publication Critical patent/GB662468A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21LLIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L23/00Non-electric hand-lamps for miners

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)

Abstract

662,468. Miners' safety lamps. KOEHLER MANUFACTURING CO. March 11, 1949 [Dec. 20, 1948], No. 6708/49. Class 75(iv) In a miner's safety lamp the height of the chimney 6 and bonnet 13 is less than the distance between the dome 16 and a lock ring 20, which is removably fastened to the fuel fount 2 from which a wick extends, the remaining space between the dome and lock ring being filled by spacing and ring numbers and the parts being held together by a pluralty of removable retaining rods 18, which are anchored to the dome 16 and lock ring 20, and the effective length of which can be altered by a screwthread adjustment. The slotted heads of the rods 18, which are in the form of elongated bolts, are received in countersunk holes in the lower side of the ring 20 which is screwed on to an integral, annular neck 3 of the fount. The rods pass through spacing tubes 21, through a middle ring 14, the bonnet 13, a top ring 15, short spacing tubes 22 and the dome 16, finally receiving nuts 23 which rest in depression in the top of the dome. Both the rings 14,15 have numerous air inlet holes. Air inlet slots 4 are formed in the neck 3 of the fount, and an air admission ring 5 resting on the fount inside the neck 3 provides a seat for a gasket 7 and a glass chimney 6, on the top of which another gasket 9 and ring 8 are carried. The flanged base of the inner gauze cone 10 is clamped to the ring 8, while the flanged, cupped base of the outer cone 12 rests on the flange of the inner cone. A spring ring' 26 inserted between the middle ring 14 and the flange of the outer cone 12 compensates for any expansion or contraction of the parts due to changes in temperature. To service the lamp the fount 2 is removed by unscrewing the neck 3 from the ring 20, whereupon the retaining rods 18 can be removed.
GB6708/49A 1948-12-20 1949-03-11 Improvements in miners' lamps Expired GB662468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US662468XA 1948-12-20 1948-12-20

Publications (1)

Publication Number Publication Date
GB662468A true GB662468A (en) 1951-12-05

Family

ID=22068250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6708/49A Expired GB662468A (en) 1948-12-20 1949-03-11 Improvements in miners' lamps

Country Status (1)

Country Link
GB (1) GB662468A (en)

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