US756549A - Sap-evaporator. - Google Patents

Description

No. 756,549. PATENTED APR. 5, 1904.

s. WIBRINGA.

SAP EVAPORATOR.

APPLIOATION FILED DB0. 2s, 190s.

N0 MODEL.

2 SHEETS-$311111 1.

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No. 756,549. PATENTED APR. 5, 1904. S. WIERINGA.

SAP EVAPORATOR.

APPLICATION FILED DBO. 2a. 190s.

No MODEL. 2 SHEETS-suma.

@wi-themen MM f2 LLM 7,/ l ,e2 7 /p- J5 /4 Patented April 5, 1904. V

UNiTEn STATES PATENT OEEICE.

SAMUEL VVIERINGA, OF IATSEKA, ILLINOIS.

SAP-EVAPORATOR.

SPECIFICATION forming part of Letters Patent No. 756,549, dated April 5, 1904.

Application led December 23, 1903. Serial No. 186,396. (No modal.)

T all whom it may concern.:

Be it known that I, SAMUEL WIERTNGA, a citizen of the United States, residing at Ivatseka, in the county of Iroquois, State of Illinois, have invented certain new and. useful Improvements in Sap-Evaporators; 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.

This invention relates to evaporators, and more particularly to Vthose for use in evaporating sorghum or other sap, and has for its object to provide a device in which the sap will be heated during the process of evaporation, and in which the sap will receive a preliminary heating before reaching the evaporating-pan, this heating also assisting the sap to circulate through the pipes before reaching the eVaporating-pan.

A further object is to provide a construction which will be simple and cheap and in which the sap may be agitated in the pan without varying the temperature to which it is subjected.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a side elevation of the complete device. Fig. 2 is a longitudinal section of Fig. 1. Fig. 3 is a top plan view. Fig. 4 is a top plan view of the furnace with the evaporating-pan removed, and Fig. 5 is a section on line 5 5 of Fig. 1.

Referring now to the drawings, there is shown a furnace 6, having a slanting bottom 7, front and rear walls 8 and 9, and sides 10 and 11. rIhe sides extend below the bottom 7 of the furnace and are conveXed at their lower edges, thus providing a pair of rockers l2, upon which the entire device may be moved. The points of greatest convexity of the rockers are toward the forward end of the furnace in a position to support the weight of fuel which is disposed in this end of the furnace, and thus maintaining the device normally in a horizontal position.

a Between the sides and 11 and below the bottom 7 of the furnace are a number of transverse braces 13 and also a plurality of tieirons 14, which are provided with turnbuckles for operation to draw the sides together at the bottom to compensate for spreading thereof.

In the end 8 of the furnace there is a firedoor 16, through which fuel may be introduced, and projecting from the rear end 9 is a thimble 17, to which piping may be attached to form a fine.

In connection with the furnace just described there is employed an evaporating-pan 18, such as is usually found in similar devices, and which has secured to its bottom a pair of angle-irons 19, which receive the upper edges of the sides 10 and 11 of the furnace therebetween. Within the evaporating-pan are a series of baffle-plates 20, which cause the sap to follow a tortuous passage down the pan.

As mentioned above, one of the particular features of this invention is the arrangement of the pipes which conduct the sap to the evaporating-pan, the object being to give the sap a preliminary heating and to facilitate the circulation of the sap through the piping. To obtain this result, there is a pipe 21, which passes through the side 11 below the bottom 7 of the furnace and is then turned upwardly and connected, by means of a union 22, to another section of pipe 22', which passes upwardly through the opening 7 in the bottom 7 and which is attached at its upper end to a considerably larger pipe 23, which is disposed vertically within the furnace and which is connected, by means of a second union 24, to a pipe 26, which passes outwardly through the side 11 and is curved upwardly and over the evaporating-pan 18. By reference to the drawings it will be seen that the pipe 23 is disposed within what may be termed the firebox77 of the furnace, and is thus subjected to thc heat thereof. To the upper end of the pipe 21 there is connected a tank or other receptacle 27.

yIn use a fire is built in the furnace at its forward end and a sufficient quantity of sap is placed in the receptacle 27, through which it flows downwardly through the pipe 21 to `the pipe 23,V where this pipe having been heated by the lire it is quickly raised to a high temperature and by reason of this heat and of the pressure of the sap in the tank passes upwardly through the pipe 26 to the evaporating-pan 18, which is also heated by the fire in the furnace.

The furnace being mounted on the rockers l2, it is possible to oscillate the device to cause the sap to flow downwardly in the pan 18, and it thus agitated and thoroughly heated. From this point the operation is continued, as is customary in sugar production.

By reason of the connection of the pipe 22 with the pipe 21 through the medium of the union 22 and of the connection of the upper end of the pipe 23 with the pipe 26 through the medium of the union 24 the pipe 23 may be easily and quickly removed from the furnace to permit of the substitution of a new pipe therefor when the pipeV is burned out through its subjection to the heat of the furnace.

In practice modilications of the specific construction shown may be made and any suitable proportions and materials may be used without departing from the spirit of the invention.

What is claimed isl. An evaporator comprising a furnace, an evaporating-pan disposed thereon, a sap-conducting pipe connected at one end with a sapreceiving Vessel and passing upwardly through the bottom of the furnace, an enlarged pipe removably connected with the first-named pipe and disposed vertically Within the furnace, and a third pipe removably connected with the upper end of the enlarged pipe and having its free end directed into the evaporating-pan.

2. An evaporator comprising a furnace, an evaporating-pan removably disposed thereon, and a sap-conducting pipe connected at one end with a sap-receiving vessel and passing vertically through the furnace and having its remaining end directed into the evaporatingpan, the portion of the pipe within the furnace being enlarged.

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

SAMUEL WIERINGA.

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