US939485A - Canning apparatus. - Google Patents

Description

T. H. EIDSON.

I GANNING APPARATUfi. APPLIOATION FILED JAN. 17, 1908.

. Patented NOV. 9, 1909.

2 SHEETS-SHEET 1.

THOMAS H. EIDSON, OF ELKIN, NORTH CAROLINA.

oANnIue APPARATUS.

Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed January 17, 1908. Serial No. 411,348.

To all whom it may concern:

Be it known that I, THOMAS H. EIDsoN, a citizen of the United States, residing at Elkin, in the county of Surry and State of North Carolina, have invented a new and useful Canning Apparatus, of which the following is a specification.

This invention relates to canning apparatus and more particularly to means for steaming and boiling the cans immediately prior to the seaming operation, so as to insure the expulsion of air from the cans.

The principal object of the invention is to provide a boiler of novel form, designed to be used in connection with a furnace of any well known or special type, said boiler being so constructed as to utilize practically all of the generated heat for raising the temperature of the water contained within the boiler, the body of Water being so disposed as to insure the most efiective heating re sults from the heating medium.

A further object is to provide simple means whereby the heating of the water can be conveniently regulated.

With these and other objects in View the invention consists of certain novel details of construction and combinations of parts,

hereinafter more fully described and pointe'd out in the claims.

In the accompanying drawings the pre ferred form of the invention has been shown.

In said drawings :F igure 1 isa central vertical longitudinal section through the apparatus, including the furnace thereunder said section being taken on the line AB Fig. 2. Fig. 2 is a plan view of the apparatus, a portion of the boiler being shown in section. Fig. 3 is a central vertical transverse section through the apparatus said section being taken on the line (,D Fig. 2.

Referring to the figures by characters of reference 1 designates a furnace of any preferred type and the top of which is designed to be closed by the boiler constituting the present invention. This boiler, which has been indicated at 2, is formed of side walls 4., and front and rear walls 5 and 23 respectively, said boiler being provided with a bottom 3, which is slightly shorter than the side walls 4, so as to form an outlet port 6, extending throughout the width of the boiler. A flue 9, preferably rectangular in cross section, is arranged longitudinally within the boiler and spaced from the bottom thereof, said flue being provided at each end with a head 7 projecting throughout the width of the boiler, one of said heads bemg designed to receive products of combustion from the port 6, while the other head opens into an outlet stack 21, which is detachably mounted upon a short tube or thimble 20, extending from the front wall 5.

As shown in the drawings each head 7 consists of a horizontal wall and a vertical wall, the two walls cooperating with the bottom and walls of the receptacle or boiler 2 to form chambers.

Asheretofore stated, the heads 7 extend throughout the width of the boiler 2, whereas thefiue 9 connecting said heads is spaced both from the bottom 3 and from the side walls 2. The spaces or pockets 12 formed between flue or duct 9 and walls 4:, and the space 10 formed between said flue and the bottom 3 will thus be filled with water poured into the boiler 2, and will therefore quickly absorb the heat radiated from the line 9 and the bottom 3 during the passage of the products of combustion from the furnace l to the stack 21, as hereinafter set forth.

The rear wall of the rear head 7 of the boiler consists of a damper 25, hingedly mounted as at 24 upon the lower portion of the rear wall 23, there being a rod 26 secured to this damper and journaled within eyes 28. This rod extends beyond one side of the boiler and terminates in a handle or loop 27, whereby the damper can be readily opened or closed, for the purpose hereinafter set forth. A valved outlet 22 may be provided for the purpose of draining the tank.

Standards 14 extend upwardly from the side walls 4, and are notched, as indicated at 15, for the reception of cross-bars 18. These bars are mounted in the upper ends of arms 17, extending upwardly from the sides of trays 16, the bottoms of which are apertured so as to permit water to freely circulate therethrough. Preferably two of these trays are utilized, and the bars 18 can be placed in any of the notches, so as to sup port the trays at desired elevations within the tank 2.

In using the device here described it is first necessary to provide a furnace having an open top and the boiler 2 is then placed thereon so that products of combustion will be free to pass upwardly from the furnace and into the rear head 7 through the port 6. Water is placed within the boiler and will fill the spaces below and at the sides of the flue 9, and the cans to be steamed and boiled are then placed within the trays 16. These trays are supported within the upper portion of the boiler and preferably with their apertured bottoms slightly below the level 'of the Water. The products of combustion passing from thefurnace will escape to the stack 21 by way of the flue 9 and its heads 7, and heat radiating from the flue and from the bottom 3 of the boiler, will be quickly taken up by the water and the temperature of the Water quickly raised to the boiling point. When it is desired to prevent overheating of the boiler and the too rapid evaporation of the water, the damper 25 can be opened by means of the loop or handle 27 and the products of combustion will therefore flow directly from the furnace and through the rear head 7 into the surrounding atmosphere and Without passing through the flue 9 and into the stack 21.

Importance is attached to the fact that the boiler constitutes a complete article which can be sold for use in connection With furnaces of dilferent styles. Another important feature resides in the fact that the water contained within the boiler completely surrounds the flue 9 and contacts directly with the bottom 3 of the boiler, so that practically all of the heat radiating from said parts is absorbed by said water. The particular means utilized for controlling the heat is also important. By so con structing the boiler as to cause the water to extend completely around the flue, the side walls of the boiler are prevented from becoming overheated, and it becomes possible therefore for the operator to perform the necessary duties in connection with the apparatus with less discomfort than would otherwise be the case.

Obviously various changes may be made in the construction and arrangement of the parts Without departing from the spirit or sacrificing the advantages of the invention.

What is claimed is 1. In canning apparatus a boiler having a longitudinally extending flue therein and spaced from the bottom, said flue terminating in heads extending throughout the width of the boiler at each end thereof, one of said heads having an inlet port for the reception of products of combustion from a furnace, an outlet stack extending from the other head of the flue, there being spaces between the sides of the flue and the sides of the boiler for the reception of water contained in the boiler, a damper constituting one wall of the inlet head of the fine, means for actuating the damper, and a tray detachably and adjustably supported within the boiler.

2. In canning apparatus the combination with a furnace open at the top; of a boiler mounted upon the furnace, a line extending longitudinally within and spaced from the bottom of the boiler, said fine having terminal heads extending throughout the width of the end portions of the boiler, one of said heads having an inlet port opening into the said furnace for the reception of combusti n products, a stack connected to the other head, a damper movably mounted upon the boiler and constituting one wall of the receiving head of the damper, said flue being spaced from the sides as well as from the bottom of the boiler, and a tray detachably and adjustably supported within the boiler.

3. In an apparatus of the class described, the combination with a boiler having a. fiat bottom provided with an opening extending transversely across one end thereof, a horizontal wall in the boiler at one end thereof: and disposed over the opening, a vertical wall cooperating with the first wall to form a head and provided with an opening, a head in the opposite end of the boiler and provided with an opening, a fine having its ends connected with the openings of the heads, a tubular member extending out of the boiler and communicating with the second mentioned head, and a stack removably supported on the said tubular member.

4. In an apparatus of the class described. the combination of a receptacle having a Hat bottom provided with an opening extending transversely across one end thereof, a horizontal wall in the receptacle at one end thereof and disposed over the opening, a vertical wall cooperating with the first wall to form achamber and provided with an opening, a chamber in the opposite end of the receptacle and provided with an opening, a duct formed on the bottom of the receptacle and having its ends connected with the openings of the chambers, a short tube extending out of the receptacle and communicating with the second-mentioned chamber, and a stack removably supported on the said tube.

In testimony that I claim the foregoing as my own, I lHUO hereto afiixed my signature in the presence of two witnesses.

THOMAS H. EIDSUN.

Vitnesses Jas. M. \VALKnn, Var. J. NEALE.

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