IMPROVEMENTS IN SLIDING PENDANTS FOR BURNING GAS, PARAFFIN, OR OTHER OILS
Year: 1877

page_text: LETTERS PATENT to John Moir Hewit, of Edinburgh, for the Invention of
"IMPROVEMENTS IN SLIDING PENDANTS FOR BURNING GAS, PARAFFIN, OR OTHER
OILS"
Sealed the 18th June 1878, and dated the 18th December 1877.
PROVISIONAL SPECIFICATION left by the said John Moir Hewit at the
Office of the Commissioners of Patents on the 18th December 1877.
"
JOHN MOIR HEWIT, of Edinburgh. IMPROVEMENTS IN SLIDING PENDANTS FOR
BURNING GAS, PARAFFIN, OR OTHER OILS."
This Invention relates to improvements in the construction of sliding pendants
which are applicable for burning gas, paraffin, or other oils. It has for its object to
lengthen or shorten the pendant, and to retain the inner sliding gas, oil, or burner
tube of the same in any desired position without the aid of the pulleys, weights,
and chains usually employed for that purpose. It consists in screwing or otherwise
securing to the upper end of the inner sliding gas, oil, or burner tube (in continuation
thereof) a conically shaped hollow plug, which fits into the upper split end of a
second surrounding tube sliding in the outer barrel of the pendant, in such a manner
that upon pushing upwards the inner sliding gas, oil, or burner tube (from its lower
or burner end) the conical plug is forced out of or away from the split end of the
second sliding tube, and the two tubes can then be pulled out or pushed into the outer
barrel (or the pendant lengthened or shortened) at pleasure.
Upon releasing the inner sliding gas, oil, or burner tube, it drops down and the
conical plug falling into the split end of the second tube wedges the latter tightly
against the inner wall of the outer barrel, the two tubes being thereby retained or
locked in the position to which they may have been brought.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Moir Hewit in the Great Seal Patent Office on the 18th June
1878.
JOHN MOIR HEWIT, of Edinburgh. "IMPROVEMENTS IN SLIDING PENDANTS FOR
BURNING GAS, PARAFFIN, OR OTHER OILS."
This Invention relates to improvements in the construction of sliding pendants,
which are applicable for burning gas, paraffin, or other oils, and has for its object
to lengthen or shorten the pendant, and to retain the inner sliding tube of the
same in any desired position without the aid of the pulleys, weights, and chains
usually employed for that purpose. It is illustrated by the accompanying Sheet
of Drawings, where Fig. 1 is a sectional elevation of the improved sliding
pendant.
A, represents the inner sliding tube carrying the burners a (or the oil lamps
with their reservoirs, as the case may be). To the upper end of the tube A and
forming a continuation thereof, is screwed or otherwise secured a conically shaped
hollow (or solid) plug B, which fits into the upper open split end 6 of a second
surrounding tube C sliding in the outer barrel D of the pendant, in such a manner
that upon pushing the inner sliding tube A in an upward direction (from its lower
or burner end) the conical plug B is forced up out of or away from the split end b
of the second sliding tube C, and the two tubes A and C being then held together
at their lower ends can be pulled down out of or pushed up into the outer barrel D
(or the pendant lengthened or shortened) to any desired extent.
Upon releasing the inner sliding tube A it drops down, so that the conical plug B
falling into the open split end b of the second sliding tube C, wedges the said end
tightly against the inner wall of the outer barrel D, the two tubes A and C being
thereby retained or locked in the position to which they may have been brought.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that what I consider as novel and original, and
therefore claim as the Invention secured to me by the herein-before in part recited
Letters Patent is, the combination of the conical plug B with the inner sliding
tube A, and with the second sliding tube C and outer barrel D in sliding pendants
for burning gas, paraffin, or other oils, substantially as and for the purpose herein-
before described, and illustrated by the accompanying Drawing.
In witness whereof, I, the said John Moir Hewit, have hereunto set my
hand and seal, this Sixteenth day of May, in the year of our Lord One
thousand eight hundred and seventy-eight.
TOUN MOIR UTWIT
JOHN MOIR HEWIT
(1.9.)