US471974A

US471974A - Milk-cooler

Info

Publication number: US471974A
Authority: US
Publication date: 1892-03-29
Anticipated expiration: 1909-03-29

Description

(No Model.)

S. M. HEULINGS, Jr. & ELEVANS.

MILK'OOOLER. No. 471,974.-

Patented Mar. 29, 1892. :EEg- .zz...

. V wi NITED STATES PATENT SAMUEL M. HEULINGS, J R., AND ELLWOOD EVANS, OF HADDONFIELD, NEW JERSEY.

MILK-COOLER.

SPECIFICATION forming part of Letters Patent No. 471,974, dated March 29, 1892.

Application filed August 3, 1891.

T0 at whom it may concern:

Be it known that we, SAMUEL M. HEULINGS, J r., and ELLWOOD EVANS, citizens of the United States, residing at Haddonfield, in the county of Camden, State of New Jersey, have invented certain new and useful Improvements in Milk-Coolers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has reference to milk or other liquid coolers of that class which comprises a corrugated cooling surface and means connected therewith for applying water or any other refrigerant, and in detail in some respects the invention refers to such coolers when adapted for suspension.

Among the objects of the invention are to provide such a construction as will permit of a ready access throughout the entire surface of the corrugated plates for cleaning purposes and the rotation or semi-rotation of the entire apparatus to give access to both sides and all parts, thus further facilitating the operation of cleansing the same.

A further object is to provide means for suspension which will not only be pendulous, whereby the apparatus will automatically assume a perpendicular position, but which shall serve at the same time to receive and conduct in a desired circuit or direction and deliver from the apparatus the refrigerant employed.

It is also an object of the invention to firmly unite the two adjacent corrugated coolingplates by some means which shall leave the ends of said plates free and unobstructed, so that the hand or any cleaning device may pass completely along the corrugations when clea ning the plates. Heretofore such plates have terminated against standards or other parts, thereby forming at the end and within the corrugations recesses or places which were more or less difficult to be cleaned. Our improvement in this regard obviates this objection.

Other objects and advantages of the invention will be hereinafter described, and the novel features thereof will be particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a side elevation of a cooling apparatus con- Serial No. 401,551. (No model.)

structed in accordance with our invention. Fig. 2 is an end elevation with a portion of the frame-work removed. Fig. 3 is a detail in perspective illustrating one manner of securing the ends of the corrugated plates. Fig. 4 is an elevation of one end of an apparatus, illustrating a modification of our invention.

Like letters refer to like parts in all the figures.

' A A representthe cooling-surfaces of the apparatus, and each consists of a corrugated plate usually of sheet metal. For the purpose of uniting these plates we first place between them a filling A, which may be of metal, paper, or paper-pulp, plaster-of-paris, cement, or any other suitable material. This filling conforms to the inner surfaces of each of the plates and extends from one to the other and is arranged at such a distance from the end as will leave a pocket or recess extending from end to end, and into said pocket or recess We pour or flow or otherwise place solder or other liquid metal A and allow the same to harden. In this manner the two plates are secured firmly together, and no obstruction whatever remains within the corrugations or along the edges and upon the outer surfaces of the plates, so that every portion of said surfaces is readily accessible for cleaning p111- poses. We also by this method provide a filling-piece which exactly conforms to any irregularities in the corrugations of the plate, and thus produce not only a water-tight connection, but provide a support from all points for the plates. These results cannot practically be secured by cutting and fitting by hand a filling or spacer. When the filling A is of metal we find it necessary only to flow the solder or other liquid metal along the lines of juncture between said filling and the corrugated plates. This method of uniting the parts secures the same advantage of preventing any obstruction upon the outer surfaces and within the corrugations of the plates, whereby they are readily cleaned.

The upper and lower ends of the cooling I too fittings; but we do not limit our invention in this regard. At the top we mount or form the branches B and castings B which conform on their inner surfaces to the contour of the perforated receiving-trough O, the ends of which are soldered or otherwise secured to the castings. At the lower end and upon the branches or pipes B and we form castings D, which upon their inner surfaces conform to the contour of the trough E, provided with the discharge-pipe E, and said castings may or may not, as desired, be provided with feet D, upon which the apparatus may rest when placed upon the floor. Trunnions F are provided 011 the frame-work and serve for the pivotal connection with the apparatus of suspension links or hooks G, that are to be connected with brackets H, extending from a wall or other support. A ring H, or it may be lugs H only'one of which is shown formed on the frame-work, is or are provided for the purpose of connecting the links with the frame at a point above the trunnions, so as to prevent any undue oscillation of the apparatus. The ring is intended to remain in connection with the frame-work while the apparatus is suspended and disconnected and while it is being rotated or semi-rotated for access to opposite sides for cleaning purposes. It will be noted that in rotating the apparatus the pivotal connection of the links with the trunnion permits a movement away from the wall suflicient to allow the apparatus to turn. This could not take place if the links were rigidly connected at the trunnion s. The ring .H' is lifted from the boss or projection B in order to permit of the turning of the apparatus, and when the lugs H are employed a sidewise movement will release them from the link in order to permit the appara tus to be turned. The ring connection may be preferable as being less rigid than the lugs unless the latter are spaced so as to permit of a slight oscillation of the apparatus upon the trunnions in order that it may seek an tomaticallyits perpendicular; but in either case the apparatus would find its own perpendicular by reason of its suspension upon the brackets being practically pivotal. The trunnions F are hollow, as is the frame-work, and in order to secure a passage of the cooling-liquid from bottom to top and within the coolingplates a plug I is placed above one of the trunnions and below the opposite trunnion,

so that the liquid takes the course indicated 1 by the arrow.

\Ve do not limit our invention to the exact construction of trunnion shown, but illustrate one form which is acceptable. This form comprises a washer F and a coupling F placed upon the trunnion in the order named and outside of the link G, the coupling being screwthreaded or otherwise mounted upon the trunnion and adapted for connection with or insertion into a hose or other pipe.

It is evident that any of the well-known pipe connections which are employed where one part remains stationary and another rotates may be used at the trunnions of our apparatus.

Instead of employing a frame-work of piping, and in order to provide trunnions and links to apparatus of this class in which there are standards at the ends of the corrugated plates, we propose to apply trunnions F either solid or hollow, to said standards, as illustrated by dotted lines in Fig. 4. These trunnions may be placed either at or above the middle lengthwise of the standard, if desired, because the excess of weight of the cooling-liquid below the trunnions might facilitate the finding of an exact perpendicular when the apparatus is suspended. hen hollow trunnions are provided upon the standards, they may be hollow and communicate either directly with the space between the plates orwith a hollow chamber F cast or otherwise formed in the standard and extending down to the bottom of the plates and communicating with their interior, as at F. In this manner we secure an upward circulation of the cooling-liquid.

In some instances we provide the standards with a frame-work B Fig. 4, communicating with the space between the cooling-plates at the top or bottom by means of the pipe E 13. In this manner the trunnions and links and cooling-liquid-supply pipes may be applied to old forms of standards which have no chamber F formed thereon, whereby said forms of apparatus are adapted to be rotated for cleaning purposes without removing them from their brackets. The link-suspension and link-and-frame-connecting devices II II permit of the use of trunnions for turning the apparatus and at the same time retain pendulous support and action of the apparatus.

It is apparent to persons skilled in the art that the unobstructed corrugations may be secured without the use of the filling A in the operation of closing up the ends with molten metal by placing the plates and maintaining them by any desired means at the proper distance apart and dipping them into molten metal or solder a desired depth to secure the desired thickness of the metal filling A In this operation it is of course understood that while the inner surfaces of the plates are at their ends properly fluxed their outer surfaces are either oiled or in any other well-known manner treated, so as to prevent the adherence of the molten metal thereon. \Ve therefore do not limit our invention to a particular manner or method of forming the unobstructed corrugated cooling-plates and their end fillings.

IVhat we claim is- V l. The combination, with a rotatable cooling apparatus, of suspension-links, substantially as specified.

2. The combination, with a cooling apparatus having trunnions, of suspension-links and removable link-retaining devices, substantially as specified.

IIO

3. The combination, with the cooling-plates, of a hollow frame-work provided with hollow trunnions and suspension-links loosely connected to said trunnions, substantially as specified.

4. The combination, with the cooling-plates, of a hollow frame provided with hollow trunnions located between the ends of the frame, substantially as specified.

5. The combination, with the cooling-plates, of a hollow frame provided with trunnions and means for supporting the same on said trunnions, located between the ends of the frame, substantially as specified.

6. A cooling apparatus comprising plates corrugated transversely and supported in operative position by means located between the plates, whereby the ends of the corrugations on their outer surfaces are left free and unobstructed for cleaning purposes, substantially as specified.

7. The combination of corrugated coolingplates and an intermediate filling of metal, limited to the space between and simultaneously uniting the plates, substantially as specified.

8. The combination, with the cooling-plates, of a hollow frame-work having hollow trunnions, links pivoted on the trunnions, an-d nozzles connected with the trunnions, substantially as specified.

9. The combination, with the cooling-plates, of the frame 13, having pipes B, the trough ends B fitted to the pipes, and the trough C, substantially as specified.

10. The combination, with the corrugated plates A, of the frame B, having pipe 13, the trough O, and trough ends for supporting and shaping the trough, mounted on the pipes, substantially as specified.

11. The combination, with the plates A, of the frame B, having the pipes B the trough ends having feet D, and the trough E, substantially as specified.

12. The combination, with the coolingplates, of a frame-work provided with trunnions and suspension-links loosely connected to the trunnions between the ends of the frame-work, as set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

SAMUEL M. HEULINGS, JR. ELLWVOOD EVANS. Witnesses:

J AMES M. CASSADY, THOMAS B. FENER.