US654563A - Process of preserving meats. - Google Patents

Description

No. 654,563. V Patented Jul 24 |900.

F.- w. BRIGHT. y PROCESS 0F PRESEBVING METS.

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Patented July 24, |900.

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F; w. BRIGHT. Pnocress or PRESI-:Rvws MEATS.

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No. 654,563 Pate -t d l 2 I9 F. w; BRIGHT. n e "ly 4 ou 1 PBQCESS 0F PRESERVING` MEATS'. (no Model.) (Application led Apr. 14, 1900.)

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No. 654,563, Y Patented July 24, |900. F. W. BRIGHT. PROCESS oF PRESEHVING MEATS.

(Application led Apr. 14, 1900.)

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SPIFICATION forming part of Letters Patent No. 654,563, dated July 2li, 1900..

Appnanon'nea Apni 14, 19oc.` sentito. 12,785. (No specimens a citizen of the United States, and a resident of Kansas City, in the county of Wyandotte and State of Kansas, have invented certain new and useful Improvements in Processes of Preserving and Handling Canned Meats, of which the following is a specication.

My invention relates to a process for sealing, preserving, washing, and cooling cans containing meats.

'One object of my invention is to provide a process by which meats after being placed in cans are preserved and then the cans thoroughly Washed and cooled, all of said operations being performed automatically, thereby enecting a saving of time and labor.

A further object is to prevent loss of weight of the meats during the preserving process.

A further object is to effect a saving of steam used in the preserving of the meats.

A further object is to provide means by which the cans are conveyed throughout the different operations to which they are subjected without the agency of hand-labor.

A further object is to provide more eiiicient means for preserving, washing, and cooling canned meats than have been heretofore employed.

` Hereinafter the term processing will be used as a technical equivalent of the word preserving as applied to canned meats.

With these objects in view my invention comprises certain novel and superior features and the use of certain liquids, as hereinafter described.

l do not claim, broadly, the machinery employed in the process to be described; but said machinery is illustrated by drawings in order to admit of a more explicit description of Said process.

Reference is made to the accompanying drawings, in which- Figure l is a diagrammatic plan view of an equipment for carrying my invention into effeet. Fig. 2 is a central vertical longitudinal section of a processing-tank and the endless conveyer which carries the cans of meat through said tank. Fig. 3 is a central vertical longitudinal section of three can-wash ing tanks and the endless conveyer which car- 4partially processed.

ries the cans of meat through said tanks.

Fig. t is a vertical longitudinalsection of a machine for Cooling the cans when they leave the washingmachine. Fig. 5 is a perspective View of a set of conveyers forcarrying freshly- Sealed cans of meat from the sealing-machines into the processing-tanks. The number of processing-tanks required depends partly on the variety of meats to be processed and partly on the differences in the sizes of said cans. In Fig. l four of Such machines are repre sented. Fig. 6 is an elevation of the receiving end of one of Said process-tanks, together with part of the apparatus shown by Fig. 5.

A, The process-tanks and their conveyers will be referred to herein as process-machines. The Washing-tanks and their conveyer will be lreferred to as the washing-machine.

Heretofore the procedure in processing canned meats has been to leave open the vents in the lids of said cans until the contents were Then the cans were ren moved from the processing apparatus, the vents closed or sealed, and the contents processed again. This first processing involved a loss of several ounces of meat-jelly from each can through the vent thereof. The two separate processings involved a loss of time in handling the cans. My process prevents the escape of jelly from the cans and requires less time and labor than the old process. I seal the vents of the cans before processing their contents. The sealing is done by soldering up the vents in a vacuum created in vacuum-chambers of soldering-machines lLL 2'LL 3at 4a. When sealed, the cans are pushed upon chutes 7, leading from said machines to a table S, provided with openings in its top through which the cans fall upon a conveyerbelt 9. The top of table 8 has depending from its lower side a plurality of longitudinal partitions l0, running parallel with and close to the top of belt 9. `The object of said partitions is to keep separate the different sorts and Sizes of cans turned ont from the different soldering-machines. Side guards 15, secured to table 8, prevent the cans in the outer channels from falling off the belt.

By the arrangement shown in Figs. 5 and 'the cans to be processed in machine N o. 1 are sealed in vacuum-machinesla.'

Cans to "roo - themv into process-machine 1.

be processed in machine No. 2 are sealed in vacuum-machines 2a,-and so on.

The devices shown 'in the drawings for conveying'the'cans from belt 9 to the processmachines will next be described.

The partitions 10 extend downwardly atthe discharge end of table 8 and guide` the cans to an elevator-belt 12, driven by a pulley 11. Extensions of partitions 10 are secured close above belt l2 and extensions of side guards 15 are secured at thc sides thereof. Belt 12 is of the same width as belt 9 and is provided between said partitions and guards with sets of flights 13 for engaging the cans. The cans are raised by said elevator-belt to the upper pulley 14, from which they fall into four chutes 16, 17, 18, and 19. Chute 17 terminates directly above the receiving end of process-machine 2, as shown in Fig. 6. The other three chutes deposit cans upon different portions of a horizontal distributing-belt 20, mounted on pulleys journaled toa frame suitably supported above the receiving ends of the process-machines. Said frame consists of two central longitudinal partitions 21 and 22, cross-bars 23 forbracingsame, and four outer guard-plates 24: and 25 for preventing cans from leaving belt 20, except at certain points to be mentioned. Said partitions 21 and 22 divide this conveyer into four compartments, three of which receive cans from the chutes 16, 18, and 19, respectively. Cans from chute -16 are carried by belt 20 until theystrike afverti'cal' oblique plate 16 and areidiver'ted thereby into a chute which feeds In the same way cans from chutes 18 and 19 are diverted by plates 18 and 19 and are fed into processmachines 3 and 4, respectively.

Each process-machine consists of an endless-chain and basket conveyer and a tank through which the conveyer is driven at a veryv slow rate of motion. Each of said machines is driven independently and is provided with a reducing-gear and a variablespeed device connected with a source of power. Said process-conveyers move on tracks attached to the inner sides of the process-tanks, and also on tracks located beneath said tanks. The baskets 13 of said conveyers become inverted when theyare carried underneath the process-tanks. (See Fig. 2.)

An important feature of my invention is the use of a liquid for processing the meats. Prior to the employment of liquid for this purpose the meats were processed by admitting to the cans live steam in suitable retorts. These' retorts had to be opened whenever a batch of cans was placed therein or withdrawn, and during this time the retorts became partially cooled. When they were closed, more steam was required in order to raise the temperature in them to the required point. I attain a high economy of steam by confining the steam in coils of pipe located at or near the bottom of the process-tank. Processing liquid is heated by contact with said pipes to a temperature approximating 240 Fahrenheit. The essential characteristic or property of the liquid is that it shall vaporize but very slowly at the temperature named. No. l tallow possesses this property and is preferred by me for a processing liquid. Said liquid is maintained at the height of about nine (9) inches above the tops of the conveyer-baskets in the tanks. Each process-conveyer is run at a speed suitable for processing the kind of meat and size of package carried by itin the time during which any particular conveyer-basket is submerged in the processing liquid. The cansafter being processed are Withdrawn from the tanks by the conveyers, from which they fall upon a transverse conveyer 26, (see Fig. 1,) which conveys them to apoint above the receiving end of a washing-machine 5. This machine consists of a plurality of tanks, three being a preferred number, arranged end to end, but not in contact with one another, and an endless-chain and basket conveyer carried by sprocket-wheels mounted on said tanks,and rails secured to the inner sides of said tanks upon which the conveyer-chain travels. Thebaskets of said conveyer become inverted when they are drawn underneath the washing-tanks. (See Fig. 3.) The tank through which the cans are first passed is lled with a strong solution of sodium carbonate in hot water. The next tank is filled with a somewhat-weaker solution of the same elements. The third tank contains hot water only. The cans are carried through and below the level of the said liquids-in the order named and are thereby thoroughly cleaned. The washing-machine conveyer descends around a pair of sprocket-wheels at the discharge end of said machine, and here the cleanicans fall upon a transverse conveyer-belt 27, (see Fig. 1,) which carries them to a cooling-machine 6 and drops them into a chute 28. (See Fig. 4.) Thecooling-machine consists of a spray 33 of cold water, a cooling-tank 32, a pan 36, an endless-chain and basket conveyer, mechanism driving the conveyer, and devices for receiving and discharging the cans into and from said conveyer. The baskets of this conveyer are hung pivotally from the chains which drive them, so that said baskets maintain their normal positions when said chains are inverted and pass through said tank.

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From the chute 28, mentioned above, the

cans fall into said slowly-moving conveyerbaskets, which travel in the direction of the arrows, Fig. 4t. Being guided and supported by suitable tracks they descend into the tank 32, which receives a continual supply of cold water at the end from which the baskets emerge and is provided near the opposite end with an overflow-outlet 35, located several inches above the tops of said conveyerbaskets in the tank. The reason for placing said outlet at the point where the hot cans enter the Water will be readily perceived. By the time the cans are withdrawn from eses Y tank 32 they are partly cooled, and the conveyer passing over a pair of sprocket-wheels at this point the cans move slowly through a spray 33 of cold water falling from a perforated pipe 34. Said spray completes the cooling of the cans and their' contents and is received by a pan 36 open at one end, as shown in Fig. 4. The water falls from said open end into the tank 32.

The conveyer-baskets are driven at a rate of motion adapted to the time required for cooling the quantities and sizes of cans carried in said baskets.

Having fully described my process, l claim as new and desire to secure by Letters Patent-- 1. A continuous process for preserving and handling meats in metal packages,which consists in first hermetically sealing said packages in a vacuum, then processing said meats in a liquid which does not vaporize appreciably at a temperature of 240, Fahrenheit, said liquid being maintained at approximately said temperature; then automatically washing said packages in a solution of sodium carbonate and hot water, then passing them through a body of hot water,then cooling them in cold water, and further cooling them in a stream or spray of cold water, substantially as set forth.

2. A process for preserving and handling meats in tin cans or cases, Which consists in rst hermetically sealing said cans in a vacuum, then processing said meats by passing them through a bath oi No. l tallovsT having a temperature of 240, more or less, Fahrenheit, said temperature being maintained by a volume of steam confined in pipes in said bath of tallow; next, in automatically removing the grease from said cans by passing them through three cleaning-baths in sucf cession: the first being a strong solution of sodium carbonate in hot water, the next being a weaker solution of the same, and the last consisting of hot water only; finally, in automatically passing the cans so cleaned, through a body of cold water and then through a stream or spray of cold water, substantially as set forth.

In testimony whereof l affix my signature in the presence of two witnesses.

FREDERICK W. BRIGHT.

Witnesses:

R. C. BEAN, WM. Gandini..

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