US1419225A - Water heater - Google Patents

Description

W. COLEBRUOK.

WATER HEATER.

vAPPLICANON FILED SEPT. 2o, |920.

1,419,225. Patented June 13, 1922.

U Nl TE ib y `.fi "i" A 'il S Param omcaV WILLIHAM CQLEBROOK, OF OURBAN; NATAL, SOUTH AFRICA.

WATER Application lcd September stream by means of an apparatus which can be attached to any suitable water supply pipe. l

One of the objects of the present invention is to provide means tor heating water which is led into the apparatus and caused to iiow in a thin spiral stream around or near a source ot heat, consequently resulting in a continuous flow ot heated water directly the apparatus is set in action. The iiow. continues until the heat or water supply is cut oil". This has manifest advantages over the' known apparatus wherein a bulk ot water' (as distinct trom a. thin flowing stream) has to be slowly heated, used, the apparatus refilled, and action started again.

Any suitable source ot heat may be used in carrying out the principles indicated above,'and a practical example showing the use ot electric heating elements is hereinafter described and illustrated in the accompanying drawing, wherein:

Figure l is a vertical section.

Figure 2 is a detail elevation partly in section of two interior members detached;

and, e

Figure 3 is a fragmentary view section (Figure l) enlarged.

In the drawings, a is an inner core member which may be packed with asbestos or the like. This is surrounded by heat insulation packing lv, against which are arranged electric heating elements c enclosed in mica or other insulation (l. A further cylinder e fits over the heating element, and cylinder e is :Formed with a spiral projection f, which may be metal wire. `An outer composite cover consisting of cylinder g'and shell h fits tightly over the projection f, to leave a spiral passage therebetween.

Between g and 71, eXtra heating elements o and packing b are disposed. A conical or the HEATER.

specification of Lettersratent. Patented Juil@ 13, 1922 20, 1920. Serial vNo. 411,592.

water inlet i is secured to the bottom of the cylinder g, and a rim j on the bottom of the shell ,71. lies thereagainst when assembled. The bottom of cylinder@7 is closed at e, so that water entering at the union 7c travels into the spiral passage between e and g, and thence upwards to the exit Z, being heated in its passage by theelements c and c.

Any other means of causing a thin stream oi water to travel in a spiral passage over a source of heat continuously from inlet c' to outlet Z (such as a thin spiral tube) may be substituted. y l

A top cap m is secured to the outer shell 7L and a central screwed rod n completes the iitment. Oriiices o are proivded for the electrical leads from the elements c and c.

l. A water heater including a pair of tubular members arranged to provide a space therebetween7 a member arranged in said space between the tubular members to provide a spiral water passageway therebetween,

heat insulating means surrounding the outer "tubular member, electrical heating meansy embedded inthe insulation, a cap tor one end of the tubular members, an inlet spout carried by the opposite end of the tubular members and arranged in communication with the `outer end of the spiral passageway provided therebetween. and an exterior casing arranged between the said cap and the inlet spout.

2. A water heater including a pair of `tubular members arranged to provide a space therebetween,means arranged in said spa-ce between the tubular members to provide a `spiral water passage, a heat insulating covering for the inner tace of the inner tubular member, aninsulating covering for the outer tubular member, electrical heating means embedded in the insulation for both the inner and outer tubular members, a cap for one end ot the tubular members, a spout for the opposite end ot said members and means Ator holding the cap in assembled relation to said tubular members. l

A water heater comprising a core member, a layer ot heat insulation lying therearound, electric heating elements suitably insulated disposed on said heat insulation, a

i surrounding cylinder fitting over the aforesaid assembly of features against the heating elements, a spml projecten en Said Surrounding Cylinder, un outer @lnder tightly fitting agamst the Spiral projection to wonsituiie n spiral Water passage, and an outer casing spaced Vfrom the last mentionec outer Cylinder by heating elements, and heat inmlleiiifm, them being n mmble cover to the device, water inlet'. :md outlet :and means to lead off the eectl'ica] wires.

Tn testmouy Wl'el'eo'lf I have n'xed my signature hereto this Fust day of September, 1920.

XVILLIAM GOLEBROOK.

Images