US 872129 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
PATENTED NOV. 26, 1907.
A TTOR/VE Y5 *UNIT? 1 D s'rAr'Es aosER'r ALLEN HEFFLEY, or DENVER, coLoRAno.
Specification of Letters Patent.
Patented Nov. 26, 1907.
Application filed August 11.1906. Serial No- 830,198. Renewed October 16.1907. Serial No. 397.676-
T all whom it may concern:
Be it known that I, ROBERT ALLEN HEE- FLE a citizen of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented a new and useful Water-Heater, of which the following is a specification. I
This invention relates to a device for heating water, other liquids, and air by the use of steam or other suitable heating media, and it relates more particularly to a device of this character which isof simple, inexpensive andpractical construction, and highly eflicient, in operation. I
One. of the objects of the invention is the provisionof a heater in which the fluid to be heated is adually brought to the point of entrance 0 the steam and is then returned so as to .prevent rapid condensation of the pltcalmi and effect a more even heating of the ui A further object is the employment of a plurality of concentric tubes and a'common distribution chamber arranged to receivethe fluid'being heated as it passes out of the inner set of tubesand to deliver the fluid, after the same has been completely min led, to the outerfset of; tubes. 'This cham er enables the fluid 'or liquid to be freed from impurities and also permits of the temperature of the liquid being equalized before passing to the outer tubes. Another object of the invention is to provide separate chambers'at one end of the de-,
vice .by which the cold water enters and.
heated water leaves, the arrangement being such that the cold water passin through the inner tubes is subjected to the eatin efi'ect With these. objects in view, the invention comprises the various novel features ofconstruction and arrangement of parts, which will'be more fully described hereinafter, and
set forthwith particularity in the appended claims.
In the accompanying drawing, illustrating right, is. a cas' one of the embodiments of the invention, is shown a longitudinal section of the device with portions broken away.
The present device is designed for several uses, such as a water heater and purifier to be used in connection with boilers, a water or air heater for heating buildings, or for drying devices, or sea hot water heater for furnishg water for scrubbing purposes, laundry work, and the like. a p
. Referring to the drawings, 1 desi nates a steam cylinder or acket-having hea s 2 suitably secured thereto and each provided with a threaded flange 2- for engagement with the correspondingly threaded ends of the cylinder, as shown. The cylinder is preferably made of iron and may be of any desired size. Extending longitudinally of the cylinder are a plurality of tubes 3 that pass at their ends through the heads and are expanded down upon the outer surfaces thereof. Steam or other heating fluid is admitted to the cylinder at one end through the inlet conduit 4 and circulates freely around the tubes 3 to effectively heat thesamel The lower, or opposite, end of the cylinder is provided with a valved drain 5 to permit the water of condensation to be drawn oil.
At one endof the cylinder, preferably the lower, when the cylinder is to be used up- 6 which is extended below and 1s preferab y formed integral with the lower head 2, said casing bem with a cap 7 having a removab e cover 8. The cap- 7, and short casing 6 are each provided with a circumferential flange 9 perforated to receive bolts 10 which hold the two together. Intermediate the flanges is a gasket 11 for preventing leakage. The upper end of the short cylinder or casing 6 isprovided with the flange 2 sons to screw on the external thread 12 on the lower end of the .The casing 6 isdi provided vic ed into separate chambers or compartments by means of a partition 13, preferably formed integral with the cap 7 such partition forming a-headforsupporting the inner tubes 14. The lower ends of the inner tubes are threaded, or otherwise suitably secured, in the wall 13, and from thewall the tubes extend upwardly through the chamber 15' of the casing 6 and into the outer tubes 3, said inner tubes being extended slightly short of v their respective inclosing outer tubes.
the upper ends of the outer tubes and provided with spring fingers 15 which bear against the outer tubes and serve to center said inner tubes. The inner tubes are thus in communication with the lower chamber or compartment 16 of the cap 7, and the corresponding ends ofthe outer tubes are in c.0mmunication with the upper compartment 15. The upper ends of the inner tubes are open, so that fluid can flow between said tubes and 11 order to e'fl'ect a better heating of the water, or'other medium to be heated, with less condensation of thesteam, the water is led into the steam space of the cylinder by means of the set of inner tubes, and-hence the compartment 16 forms an inlet chamber to which the water is admitted by the conduit 1.7. The compartment 15, which forms the outlet chamber of the device, discharges the heated water through the conduit 18.
At the upper end ofthe cylinder a distrib uting chamber is provided with which the upper ends of the tubes communicate. This chamber 19is formed by a cap 20 that is screwed on or otherwise suitably secured to a flange on the upper head of the cylinder 1.
When the cap is screwed on, as shown, a squared extension 21 is provided for the reception of a wrench for removing or replacing the cap. One of the objects of the chamber 19 is to permit of the scum and impurities in the water being collected therein. An outi let conduit 22, which is rovided with 5. valve serves to draw off the impurities.
(not shown) pierces t e extension 21 and,
In operation, steam is admitted to the jacket 1 through the pipe 4, the quantity of steam being controlled in any suitable man ner. A The steam filling the s ace around the outer tubes 3 and between t e heads 2 operates to heat the water passing through the outer tube and through the chambers 15 and 19. The water flowing into the device asses up through the inner tubes 14 and is eated indirectly by the steam through the heated water passing through the space between the inner and outer tubes. Since both the inner and outer tubes are in communication with the upper chamber 19, the water can freely pass from the inner tubes to said chamber and the several streams thoroughly intermingle. This permits of the water in the diflerent parts of the chamber 19 being equalized as to temperature'before passing down through the outer tubes. This is an important feature, for the reason that one side of the heating device may be exposed, insome cases, to a greater degreeofcold, so that the water in flowing u the tubes along" the relatively cold side wi be heated to a less extent. The lower or outlet chamber 15 has the same function of equalizing the temperature of the water before passing out through the discharge pipe. From the up-' the heating efl'ect of the-steam, so that by the time it reaches the outlet chamber 15, it will be heated to the desired extent. It will be noted that the lower portions of the inner tubes will have a cooling effect on the hot water in the chamber 15. This is not' objectionable, for the reason that it permits of the water being heated to such a" high degree as it passes down through the steam cylinder as to free it of alkaline substances or other impurities and germs, and to-be cooled by the cold water passing through the lower end of the inner tubes, so that the water canbe used for such purposes as scrubbing, without being too hot for the hands. a
I have described the principle of operation of the invention, together withthe apparatus which i now consider to be thebest embodiment thereof, but I desire to have it understood that the apparatus shown is merely illustrative, and that various changes may be made, when desired, as are within the scope of the invention. What is claimed is 1. In a device of the class described, the
combination of a jacket, a compartment at one end thereof, and sets of telescopic tubes communicating at corresponding ends with each other and with the compartment.
2. In a device of the-class described, the combination of a jacket, separate compartments atone end, a single compartment at the opposite end of the jacket, and a set of tubes extending from each of said separate compartments and communicating withthe said single compartment. j
v3.In a device of the class described, the
combination of a cylinder adapted to containa heating fluid and having oppositely disposed heads a distributing chamber disposed above one oi the heads, tubes connecting said heads, a casing at theoppositefhead of the cylinder, a partition dividing the casing into separate compartments, and tubes secured tubes communicating with the said chamber and the inlet compartment.
5. In a device of the class described, the
combination of a cylinder adapted to contain a heating fluid, a casing secured at one end of the cylinder and composed of separate sections removably secured together and having a wall between them. for dividing the-easing into two separate eom artments, an inlet conduit leading to one the compartments, an outlet conduit leading from the other compartment, separate sets of tubes communieatin with the said compartments, and a 1 the cylinder, a 'intoseparate in cham er between one other.
6 In a device of the class described, the
set of tubes and the combination of a cylinder adapted to contain a heating fluid, a casing secured to one end of tubes communicate, and means arranged to permit impurities to be discharged from the said chamber.
7. In a device of the class described, the
" combination with a cylinder adapted to contain a heating-fluid, a casing secured to one inder and communicating with the inlet comendof the cylinder, a partition dividing the easing into separate inlet and outlet compartments, tubes extending through the cylpartment, tubes extending through the first mentioned tubes and communicating with partition dividing the easingv the inlet compartment, spring fingers carried by some of the tubes and bearin against the interior walls of the ad'aeent tu es, a chamber at the opposite en of 'the cylinder with which the inlet and outlet tube communicate, and means arranged to permit impurities to be discharged from said chamber.
8. In a device of the class described, the combination with a cylinder adaptedto. contain a heatin fluid, a casing secured to one end of 'the ey inder, a partition dividing the easing into separate inlet and outlet compartments one of which is provided With a detachable cover, tubes extending throu h the cylinder and eommunieating'with t e inlet compartment, tubes extending through the first mentioned tubes and communieating 'with inlet compartment, the inner tubes terminating short of the outer tubes and having laterally extending spring fingers adapted to bear against the interior walls of 'said outer tubes, a chamber at the opposite end of the cylinder with which the inner and outer tubes communicate, and means for permittin the discharge of impurities from said cham er. I I
In testimony that I claim the foregoing as my oWn, I have hereto affixed my signature in the presence of two Witnesses.
ROBERT ALLEN HEFFLEY.
PATRICK MONAMARA, ALONZO H. LAYTON.-