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Publication numberUS490091 A
Publication typeGrant
Publication dateJan 17, 1893
Publication numberUS 490091 A, US 490091A, US-A-490091, US490091 A, US490091A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 490091 A
Abstract  available in
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Description  (OCR text may contain errors)

(No MOdel.)


No. 490,091. Patented Jamt 17, 1893.


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SPECIFICATION forming part of Letters Patent No. 490,091, dated January 17, 1893.

Application filed February 29, 1892. Serial Nol 423,266- (llo model.)

To all whom it may concern:

Be it known that I, Amon A. Wnirrnn, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Portable Footl-Varmers or Hot-Water Vessels for Carriages, dto.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

In the device forming the subject of my present invention the object I have had in view is to prod nce an improved portable hotwater vessel, the novelty of its construction and arrangement being such as torender it more especially adapted as a foot-warmer to be used in carriages, dac.

I-Ieretofore, it has been usual in heaters of the class just referred to to employ rubber bottles or bags adapted to contain hot water. There are objections to such rubber vessels because the action of hot water soon destroys the life of the rubber or holder so that after a while it becomes inelastic, the seams are liable to open and the walls are easily fractured. Even at their best such rubber vessels when filled cannot withstand much external pressure Without bursting. lVhile, as just stated, it is usual to employ Water bottles made of rubber or other suitable flexiblc material, yet I am aware that a portable warming apparatus, cylindrical in forni and made of' metal has been devised for the use of persons traveling, die. By means of my improved vessel or heater the disadvantages resulting from the use of rubber bottles are overcome. It will retain the heat longer than rubber vessels; it occupies but little room when in use; it is readily adjustable to carriages varying in Width; it is adapted and intended to sustain the weight of persons while they are enterinfT or alighting from the carriage; it can be quickly filled with hot-water; it can be handled with ease and safety, and it is more efficient and serviceable than carriagelieaters of this class heretofore produced. In

order to accomplish the advantages just enumerated I have devised a heater or footwarmer consisting essentially of a flattened and stiffened sheet metal shell arranged to be charged with hot water and provided with means whereby the heater can be adjustably fitted to the carriage, all as will be more 'fully hereinafter set forth and claimed.

In the drawings, illustrating myinvention, Figure l is a perspective view of a heater or foot-warmer embodying my improvement; Fig. 2 is a plan view, in horizontal section, showing the interior arrangement; Fig. 3 is an enlarged longitudinal sectional view, taken on line c: a: of Fig. 2, showing means for adjusting the length of the heater; Fig. t is a similar sectional View, taken on line o, o, of Fig. 2, showing the filling nozzle and cap screwed thereon; Fig. 5 is a partial transverse sectional view, taken on line t, t, of Fig. 2, showing perforated stays or partitions, and Fig. 6 is a transverse sectional View, taken through the bottom of a carriage, showing the heater in position, as in use.

It will be seen upon referring to the drawings that the Water-tight shell or body portion c of my improved heater A presents a comparatively large heating surface or area although its depth is quite small, thereby occupying but little floor space. In order to reduce its weight I preferably malte the shell of thin sheet metal, say copper having a bright or planished surface, and provide the interior or water-holding chamber with a series of snit-able stays or ties uniting the upper and lower sides of the shell.

In the drawings I have represented a numbei of thin partitions 29 arranged in a zigzag manner, these serve to prevent the sides from collapsing while the heater is being subjected to considerable external pressure, as when supporting the weight of a person. These stays or partitions may be perforated, as at u Fig. 5, or constructed and arranged in any other suitable manner to facilitate the circulation of water throughout the interior of the shell a. One end of the shell is provided with a screw-threaded charging nozzle d. communieating with the interior chamber; a similarly threaded cap-nut e being used to close the nozzle after the vessel is lilled. The cap is attached to the heater by a chain f.

As drawn the ends of the heater are pro- ICO vided each With two laterally separated projecting guide-tubes c united by a tie h which also serves as a convenient handle for carrying the heater about. The inner` ends of these tubes are closed; the outer ends are open and are provided each with an adj usting pin or hollow stop l? fitted to move endwise therein. An expansion spring s is attached to both the tube and stop, see Fig. 8. The purpose of theseyielding stops is to hold the heater in position when in use.

In service the heater A is, after irst being filled with hot Water, placed, .upon the iioork m (shown sectionallyin Fig. 6) of a carriage, the spring-resisted holding pins or stops?) then bearing against the inner side of the carriage frame m, as indicated. The shell a may be covered with cloth or felting or other suitable material if desired.' The ends ofthe pins b may be similarly covered or rough ened to prevent the heater from being accidentally moved When in position. It can be readily detached from the carriage by pressing the heater endwise and at the same time lifting it.

It `Will be seen that the heater can be used reversed and inverted Without aecting its efficiency, as both sides are alike and both ends are also substantially alike.

I Wo uld add that when it is usedin a carriage I prefer to place it upon the door just in front of the carriage seat so that a persons feet can rest directly upon its surface.

y I claim as my inventionl. A portable foot-Warmer for carriages, the

same consisting of a ilattened and stayed sheet-'metal vessel having a charging inlet communicating with the interior, and provided With yielding ends arranged to holdy In testimony whereof I have affixed my sigg naturein presence of two Witnesses.

ALICE A. WHIPPLE. lVitnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4238425 *Jul 13, 1979Dec 9, 1980Ngk Spark Plug Co., Ltd.Ultrasonic humidifier
US4849606 *Dec 23, 1987Jul 18, 1989S. C. Johnson & Son, Inc.Tamper-resistant container utilizing a flexible seal
Cooperative ClassificationA61F7/08