US1536479A - Temperature-changing appliance - Google Patents

Description

y H. A. CUMFER 1536479 TEIPERATURE CHANGING APPLIAIIUE Filed may 15. 1922 2 sums-sunt z IIII QH fui@ *M im Patented May 5, 1925.

UNITED STATES PATENT oFFlcE.

HARRY A. CUMFER, OF CHICAGO, ILLINOIS, ASSIGNOR T-*'.,=GUYTON @L CUMFER. MFG. '00., A CORPORATION OF ILLINOIS.

TEMPERATURE-CHANGING APPLIANCE.

Application-filed May 15, 1922. Serial N'o. 561,235.

To all whom t may concern:

Be it known that I, HARRY CUMFER, a citizen of the United States, residing at Ohicago, in the county of .Cook and State of lspecification.

This inventlon relates to temperature changing appliances.

It will be explained as applied to amachine used in the manufacture yof prepared roofing, papers and the like.

In the manufacture of prepared sheet roofing,'for example, it is customary to impregnate a fibrous base and to apply thereto coatings' of asphaltum and similar compounds and mixtures. Many of these materials should be applied hot to give satisfactory results and it is often desirable to raise or maintain the sheet base at temperatures above ordinary atmospheric tempera.- tures. Also it is koften desirable to rather quickly lower the temperature to keep the applied compounds and mixtures from flowing over or ofi' the surface of the sheet. The necessary maintenance or changes 1n ternperature are ordinarily obtained by passing the sheet upon the surfaces of cooled or heated rolls.

One of the objects of this invention is to provide an improved temperature changing appliance.-

Another object is to provide a roll with heating and cooling attachments.

Another object is to provide a fluid heated roll wherein the fluid vapors or gases are effectively conducted away and can not escape into the operating room.

Another object is to provide heating and cooling apparatus which is simple, reliable, efficient and relatively inexpensive.

Another object is to provide for the ready circulation of a cooling or heating mediumJ Within and through a roll. i

Other objects and advantages will hereinafter appear. y

Embodiments of the invention adapted for both heating and cooling are illustrated in the accompanying' drawings, wherein- Fig. 1 is an end elevation of a part of a machine such as used in the'lnanufacture of prepared roofing and showing'two heating or cooling rolls.

Fig. 2 is a side elevation.

this invention.

Fig. 3 is a partial section of a roll, showing an attachment especially adapting it for cooling purposes.

Fig. t is an enlarged section of an attachment which may be used with either a heating or a cooling roll.

Fig. 5 is an enlarged section of the discharge apparatus for a cooling roll s uch as shown in Fig. 3.

The drawings do not show the parts of the machine for applying impregnating and coating material since they form no part of The heating and cooling rolls withl which this invention is shoivn incorporated may or may not be an integral part of the coating and impregnating machinery as desired. f

A pair of cooling or heating rolls 1 and 2 are supported and journaled in suitable bearings carried by framework pedestals 3 and 4. The sheet material 5 to be subjected to the heating or cooling effect of the rolls may pass under roll 1 and over roll 2 as shown in Fig. 1. Rolls 1 and 2 are driven in vthe proper direction to feed the sheet, by any suitable source of power acting through a counter shaft 6 and a gear train 7 Ordinarily both rolls will be arranged for either cooling or heating purposes. However, merely for the purpose of illustrating the features of the invention roll 1 is arranged especially for cooling the sheet and roll 2 for either cooling or heating the Sheet. Fig. 3 shows the general character of both rolls land 2. The roll comprises a generally .cylindrical drum 8 of metal or other suitable material. If the roll is for cooling purposes and water is to be the cooling agent, its walls ordinarily should be Water-tight. If the roll is for heating purposes and steam a.nd'hot' vvater'are to be the heating agents, its walls ordinarily should be steam and Water-tight. A

The ends of the drum may be closed by similar suitable heads 9. yBoth heads 9may `have an opening at the center so that the heating or cooling medium maybe injected and withdrawn from either end of the roll. The opening in one head is closed by a suitable trunnion 10 which serves to rotatably support one end of the roll in the bearings of the framework and to carry the roll driving gear Wheel of the gear train. 'I

When the roll is for cooling purposes only,' the other end of the drum may have a trunnion sleeve 11 secured thereto by suitable means, such as bolts 12. The inner end of trunnion sleeve 11 has an annular flange 13 which tightly fits against and Within a boss around the opening in the drum head. Suitable packing may be used if necessary.

Trunnion sleeve 11 supports the opposite end of the roll in the framework bearings and serves as a fiuid inlet and outlet for the roll. An inlet pipe '14 passes loosely through the bore of trunnion 11, extending downwardly toward an o posite corner on the inside. of the drum. The outer end of pipe 14 may be connected to any suitable source of cold water supply. The water passes through pipe 14 and out of its inner '1 end to the interior of the roll, cooling the walls thereof' by carrying the heat away. The outer end of trunniou sleeve 11 has somewhat funnel shaped outlet 15 secured thereto by suitable means such as bolts 16. Outlet 15 projects into a housing or outlet chamber 17 which is secured to the framework by a bracket 18. Housing 17 has a boss 19 through which pipe 14 projects and by which the pipe may be rigidly supported. The pipe may be kept from being turned by the body of water within the roll by a set screw 20. The opening in the inner wall of housing 17, being large enough to receive the iared end of outlet 15, maybe sufficiently closed at the bottom by a removable gutter 21 to prevent the water from overflowing.

' A waste pipe 22 may be tapped into housing 17 to take away the water.

The roll is thus equipped for the continuous supply, circulation and withdrawal of the cooling medium. The axial outlet serves to maintain the drum about half full of the cooling wat-er and, since the water is in the lower half of the drum. the hotter part of the water is removed. This arrangement is more efficient than the substantially full drums heretofore ordinarily used. Where the drum is substantially filled with water the cooler Water tends to collect at the center thereof and the cooling aci ion is greatly di- CII or rib 28. Aring 29 which is secured to a jacket tube 30 minished.

If the. drum is to be used for either cooling or heating purposes a trunnion, similar to trunnion 11, is bolted over the opening in the drum head. 'Io the end of this trunnion a sleeve 25 is secured.. The connection between the trunnion and sleeve 25may be made by bolting a flange 26 to the end thereof in precisely the same way as hereinbefore described for a cooling roll, so that one type 'of roll and trunnion may be used with either connection.

Sleeve 25 is externally threaded at one end to receive a cup shaped internally threaded nut 27. The bore of sleeve 25 is provided with an inwardly projecting annular flange On one side of flange 28 is a by a set screw 31.l On the other side of4 flange 28 is abeveled ring A beveled and flanged ring 33 is held in the outer end of sleeve 25 by nut 27. The space between the beveled ends of rings 32 and 33 is filled with a suitable compressible packing material 34.

The outer end of jacket tube 30 has an inlet and outlet housing or coupling 35, connected thereto.j Coupling 35 has an inlet chamber 36 to which a supply pipe 37, leading to any suitable source of fluid heating medium, may be connected. An outlet Ileeve 25 and nut 27 rotate with the roll. rIube 30, however, is held stationaryL by coupling 35 and consequently inlet pipe 40 is held against rotation. The packing box provided by sleeve 25, rings 32 and 33, nut 27 and packing 34 prevents the escape of the heating medium, although allowing relative movement between tube 30, pipe 40 and sleeve 25. Separation of the parts is prevented by ring 29.

The heating or cooling medium flows through pipe 37, chamber 36 and pipe 40 into the roll, and out through tube 30, chamber 38 and pipe 39 to the waste.

This type 0f coupling may be used for either a heating or a cooling roll. It is particularly adapted for heating rolls since the steam, vapor and other gases which may be given off bythe heating medium are confined within the circulating system and can not escape into the room. The inlet is jacketed by the outlet so that the heat loss is reduced.

Having described `my invention what I claim as new 'and desire to secure byA Letters Patent, is

A structure of the character described comprising a pair of .verticalv frame members; a pair of hollow drums rotatably mounted on the frame, one above the other; means for driving one drum; connecting means to drive the other drum in the same direction; a hollow trunnion supporting one end of each drum; a relatively fixed pipe extending into each trunnion, said pipes for connection to the same source of supply; and drainpipes connected to said trunnions for connection to a common drain conduit.

In testimony whereof I hereunto subscribed` my naine.

HARRY A. CUMFEIL

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