USRE11436E - Central-draft lamp - Google Patents

Central-draft lamp Download PDF

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Publication number
USRE11436E
USRE11436E US RE11436 E USRE11436 E US RE11436E
Authority
US
United States
Prior art keywords
wick
tube
inner air
chimney
sleeve
Prior art date
Application number
Other languages
English (en)
Inventor
Frank Rhind
Original Assignee
P One
Publication date

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  • WITNESSES s Sheets-Shet 2. F. RHIND.
  • FIG. 1 is a central vertical section of my improved lamp, the inner air distributer and the wick raising mechanism being in elevation and the inner air tube and Wick partly in elevation;
  • Fig. 2 an elevation of the body of the burner the chimney gallery being at its normal position;
  • Fig. 3 a section of the body and the base, the wick tube being in elevation, and the chimney gallery in elevation and at the raised position Fig. 4, an elevation of the wick tube and the burner base detached;
  • Fig. 5 a plan view of the body detached;
  • Fig. 6 a plan view of the chimney springs and ring as blanked out;
  • Fig. 8 an elevation of the inner air distributer detached;
  • Fig. 9 an elevation of the inner air tube detached;
  • Fig. 10 an elevation of the removable sleeve detached
  • Fig. 11 is an elevation of the chimney gallery, standards and holding ring detached.
  • 1O denotes a series of elongated openings in the outer air distributer. These openings are placed obliquely so that vertical lines on the surface of the distributer must pass through one or more of the openings. By this means air is supplied to the flame in a sheet rather than in jets and serration of the flame is avoided. By making these openings elongated instead of circular the tendency of the air currents to'assume a whirling motion as they pass through the openings is wholly avoided. It is found in practice that to produce an intense white flame it is necessary to supply a large volume of air. A large number of small perforations has been found in practice not to supply the requisite volume of air owing to frictional resistance to the passage of air through the'perforations.
  • the wick raiser is provided with perforations 15 which are engaged by pins 16 on the periphery of a wheel 17 carried by wick raising shaft 18.
  • the outer end of shaft 18 is supported in a cap 19 which is threaded to engage a hub 20 andis provided with a finger piece 21 for convenience in operation.
  • the wick raising shaft extends downward into the reservoir diagonally, its lower end being journaled in an arm 22 extending outward from a collar 23 which is rigidly secured to the inner air tube.
  • wicktube I By threading the wicktube I gain an additional advantage in that a channel or gutter indicated by 30, see Fig. 1,is provided between the wick and the sleeve for the oil to run down, as the wick in practice does not sink down into the de pressions in the sleeve.
  • the lower end of the sleeve ordinarily in use rests upon a shoulder 25 on the inner air tube.
  • the burner as a whole is secured to the reservoir by means of lugs 27 on the inner sides of the burner collar which pass through slots 28 in the base and engage curved slots 29 in thebody.
  • the base fits closely within collar 2 and is held against turning by the engagement of lugs 27 with slots'28. It will be seen that when lugs 27 are in engagement with slots 29, the body and base are. both locked firmly to the reservoir. Rotation of the body backward causes lugs 27 to ride down the inclinesof the slots thereby disengaging at the lower end of the standards which slides over the wick tube thereby keeping the chimney gallery and standards perfectly firm in use so that the gallery and chimney carried thereby may be lifted up and down easily and smoothly and all looseness and wabbling motion of the gallery and chimney is prevented.
  • the outer air distributer fits closely within the .body at its upper end, said parts being rigidly secured together and slots 34 being provided to receive the standards.
  • This air distributer as a matter of fact has three functions. an air distributer it forms a rigid support for the upper end of the Wick tube thereby keeping said wick tube perfectly central in the lamp which is especially important in a burner having a lifting chimney gallery, and moreover serving as a cover to exclude cinders, burned matches, (be, from the chamber in the base, that is to say it'prevents any- In" addition to serving as thing from passing down between the wick tube and the body.
  • the chimney gallery, standards and ring 33 are formed from a single drawn shell, the upper end of this shell being turned outward at right angles to the standards to form the gallery and then turned downward at right angles again and curved,
  • a very important feature of my improved burner is that standards 32 are provided with perforations 38 which correspond exactly with perforations 9 in the body when the chimney gallery is at the lowered position as in Figs. 1 and 2.
  • This registration of perforations 9 and 38 I find to be very important in practice as it enables me to use any reasonable number of standards so long as sufficient room is left to insert a match in lighting, thereby insuring the greatest possible strength and rigidity, while at the same time it wholly prevents marking of the flame as it is called, owing to imperfect combustion where the outer air supply is interfered with.
  • I claim- 1 The combination with an oil reservoir, an inner air tube and a wick raiser, of a collar 23 secured to said air tube, an arm 22 extending from said collar, and a wick raising shaft the lower end of which is journaled in said arm.

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