US1542843A - Digestion apparatus - Google Patents

Description

June 23, 1925,

W. H. SCOTT DIGESTION APPARATUS Filed Sept-- 1924 2 Sheets-Sheet 1 H BT mun/70R June '23, 1925.

MN r es s.

Patented June 23, 19 25.

UNITED STATES i 1,542,843 PATENTOFFICE.

WALTER 11.. soon, on DAYTON, OHIO, ASSIGNQR ToTHEnURIRon COMPANY, ma,

. A CORPORATION OF NEW YORK.

' DIGESTION APPARATUS,

Application filedfl September 2', 1924. Serial no. 735,3?2,

To'aZZ whom 'z'tcnay concern: Be it known that I, WALTER H. Soon, a

citizen of the United States, and a resident ratus, and particularly to apparatus for carrying away the fumes from the flasks employed in the well known Kjeldahl proc- It hasfor its principal objects the provision of an improved apparatus, (1) in which the flasks may be more easily and conveniently positioned with respect to the fume tube employed and removed from position, (2) in which a better fit is secured between the fume tube and the flasks, so that a smaller fan for carrying away the fumes than that ordinarily required, may be used; and (3) in which the flasks are less subject to breakage during the positioning of such flasks and their removal from operative relation with respect to the fume tube. One embodiment of the invention is shown in the accompanying drawings, wherein:

Figure 1 is a perspective view of the assembled apparatus. Fig. 2is a partial side elevation and partial longitudinal section through the novel formof fume tube which is employed. Fig. 3 is a section on the line IIIIII of Fig. 2, with the flask support and one of the flasks shown in dotted lines. And Fig. 4 is a transverse section through a modified form of fume tube having a set of nipples on each side.

Referring to the drawings, 1 is the fume tube and 2 is the flask support, which members are supported from beneath by the two sets of standards 3, 3,3 and 4, 4, 4. At the upper ends of the standards 3, 3, 3 are suitable T - shaped brackets 5, 5, 5 forked at their upper ends so as to fit around the fume tube. At the left hand end of the fume tube is a suction fan 6 having its inlet coupled to the end of the fume tube. The fan is driven froman electric motor 7, carried by the base 8, and the base is supported upon a pair of pipes 9, 9 having their upper horizontal ends secured in the casting 5. The fumes drawn through the fan are directed through a suitable outlet pipe 10 lead' brackets 11, 11, 11, having collars 12 through i I which the pipe standards 4,4, 4 extend, the brackets and the support 2 being held at any desired point of vertical adjustmentf b means of set screws 13 extending through the collars. The brackets 11 are also provided with laterally extending pipe sections 14, which areengaged at their'outer ends by brackets having collars 15, through which the standards 3 extend, the collars being provided with set screws 16 for holding the brackets in anydesiredposition of vertical adjustment. The ends'of the' pipe sections are secured in the brackets by means of the'set screws 17, the two setsof standards 3, 3, 3 and'4, 4, 4, being in this manner tied together and mutually braced brackets 11, and clamped in position by the set screws 22. The flask support may be adjusted vertically to bring the flasks 28 to proper position with respect to the fume tube, depending on the particular size of flask employed, and the gas burners may be adjusted vertically to give a maximum effioiency in heating effect upon the support v and the flasks carried thereby.

The fume tube l-is of novelconstruction, in that it is provided with laterally extending inclined nipples 23, integral with the tube section, each section being a unit cast from a corrosion resisting composition, such as high silicon iron, known commercially as duriron. ,As illustrated, the tube l is made in two sections A and B clamped together by means of a pair of flanges, such as the one marked 24 in Fig. 2. At the outer end of the section B is a header 25, also preferably of corrosion resisting composition, held in place by the clamp 26, having a bolt 27 engaging the header at its 3 center. Any number of tube sections may be employed depending on requirements.

In operation, the flasks 28 are seated upon the support 2 with their laterally opening ends or necks fitting over the nipples 23. The nipples are slightly tapering, so that the flask ends can be moved over them until a relatively close fit is secured. This arrangernent, with the nipples fitting into the flask ends, p'ro ides a substantial ifnprove inent over the ordinary arrangement, in which the flasks are supported directly beneath the fume tube, with thei'rends i-ojecting through openings in the lower wall of the tube. "With such an arrangement, the fit between the necks of the flasks and the Walls of the openings was not close, and considerable breakage was liable to oc jur ifi positloning and remevingthe flask-s. 71th the pr sent 'arrangeiment, the fit betweenthe make of the flask and the tube is impro ''d, sq that a smauer fan ma be emplofyecl to "give required suction, and the convenien e ifieiklem to positioning and removing the flasks by merely moving them laterally, is so 'incieased that the Breakage iiicideiit to these steps is reduced to a mini The "adjustments of the flask support I and burners, heretofore referred to, perinitsthe 'iis jo'f the "app ratus with flasks of Yai'ying l'feights and the fame tube by reason ofits ehstructi'on is practically inii'es'tiriictible. l a

If desired, the capacity of the apparatus ma be increased,- by proyidihg nipples 29 oil Both sides of the nine tube, as indicated in Fig. 4, in which case a flask support corresponding. to the support 2 is applied along each side of the tube, suitable heating means being also applied.

W hat I claim is:

l l 1. In combination in apparatus of the class described, a fui'ne tube having laterally and downwardly projecting, integral inlet nipples, suction for the tube, all ad:

jumble flask suppo ting m mberarall l; ing the tube and located below anfl to slide ,"ther'eof and adapted to "carry a series of flasks having laterally open-111g neck adapted to fit over the nipples, and heat-m means beneath'the'support. V

2. In combination a fume tube fixed thereon a of tapering nipples extefi'ding ateran freffl the side tl'i'er'eef i'nlihefldbwi'i 1y. H A f In testimdfi 'wlier of, 1 have liteurrt subscribed my name this 19th 1 day 61? Au gust,1924;

' WALTER H1 SCOTT.

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