Oct. 1, 1946. 2,408,675 I ‘o. c. NORTON ‘ BLOWER FOR HANDLING DESICCATED MATERIAL Filed April 30, ‘1945 \\\\\\\\\\\\\‘\\\ IIIIIIIIIIIIIII V A I IIAVVENTOIAL @4; MMZM; m 2,408,675 Patented Oct. 1-, 1946 ._ ; UNITED .'_ _' w I, STATES '? PATENT _ OFFICE " I. ‘Q 2,403,675 . - Q I '. I BLowEa Fort'nANnLnvG n'EsIcoA'rEn Y p 4 ‘ MATERIAL I a ‘ Orlo'Clair Norton, Erie, Pal . . v r _ Application April 30, 1945, serial No.-591,024 solaims. (01. 3027-37) usually vertically and then laterally to the de sired point of discharge. Journaled in the cas ing is a rotary impeller 4. ‘ At. the left hand side of casing l is a biracketi-which may form the ‘sup’ My present invention relates to blowers and has for its object to provide a combined form-of air pump and blower particularly adapted for handling the distribution, of ?nely divided gran ular material in a dry state. The invention port for the apparatu's'and carries suitable journal bearings for the impellershaft 6 which is rotated from a suitable sourcieeof power and may be comprehends the method. of mixing a continuous stream of such material with a corresponding drivenby a pulley ‘I. _ ' ' stream of air at their point of introduction to ' The bearings shown comprise ball races 8 and 9 a revolving impeller and s0 acting upon the com which are held in spaced relation by a spring Ill, 16 bined streams in a centrifugal manner that a saidf'parts being". mounted in abox ll. compressional effect is produced which will cause 'At‘the right, ‘handside of the casing l is a, said material to travel for a considerable distance tubular inlet l2,'disposed axially of the impeller through a conduit with the expenditure of mini mum power. ‘ . . 1 Another object of ‘my invention is to provide a centrifugal form of blowing.‘ apparatus into which grain or similar ‘substances in a dry state may be fed continuously which discharges it into a conduitwith a proportionally seleotedrquan¢ tity of air with an initial force su?icient to cause it to travel, verticalaand lateral distances in ex 15 '4 and opening into the casing. At a point some what removed .from the casing the inlet has an opening in, its upperside and extending there from/and ?aring outwardly ‘is a receiving fun; nel 13, which forms a restricted discharge spout through: which grain or similar material passes into'_ the ‘inlet [2. The latter, directly below said spout, has an axially disposed opening for the introduction of air. ' Itis slightly ‘less in diam eter than that of‘ the spout and as a structural penditure of power greatly in excess of that which feature I surround it with a collar l4. my apparatus requires. Attached to the center of the impeller and ex To these and other ends my invention comprises 25 tending through the inlet [2 and for a distance further improvements and arrangement of parts into the collar I4 is a rotary member l5, shaped all as will be fully explained in the following hexagonally, or otherwise formed with a plu speci?cation, the novel features thereof being set rality of blades, against which material passing forth in the appended claims. 30 from 'the feed spout l3 impinges so that it is In the drawing: . broken up or separated and distributed evenly Fig. 1 is a longitudinal sectional view of a in the air stream which is drawn into the inlet. centrifugal blower illustrating one adaptation The impeller comprises the disc 4 which lies in of my present invention. close proximity to the side of the casing l away Fig. 2 is a cross sectional view showing a face view of the impeller, taken on the line ‘Zr-2a: of 35 from the opening of inlet l2. On its face the disc cess of those heretofore reached with an ex Fig. 1. ' has a number of ribs forming a series of chan nels a, b, c, d, e, 1‘ the arrangement and construc tion of which are important, and as they are ures indicate similar parts. similar a description of one will sui?ce for all. My conception which has resulted in a very sat isfactory type of blower for handling desiccated 40 In the drawing these channels are shown as being formed between the faces of opposing angle material resides in the creation of suitable appa irons riveted to the disc and of such height that ratus for mixing air and granular substances ini the two sides of the impeller have an operating tially and handling this mixture in such a Way clearance in the casing. The inner ends of the that I simultaneously increase the pressure and consequent ?uidity thereof up to the moment of 45 channels lie just within the circumference of the inlet l2, as indicated by the dotted circle in Fig. 2. its discharge, from a high velocity rotary mem They do not connect with each other, however, ber, into a conduit’ leading to the bin or other re-. one wall of each, as indicated at l6, serving to ceptacle located at a remote point. separate it from the next channel of the series. In carrying out my invention I provide an ap paratus comprising a narrow casing I, substan 50 I deem this arrangement desirable as it assures Similar reference characters in the several fig tially circular in exterior appearance the inner surface 2‘ of which is a volute curve leading to a discharge nozzle 3 which marks the point of at‘ the independent action of the channels. It will be noticed that the channels instead of being ra dially disposed are substantially each one half of a chord of the circular disc 4, said half falling on tachment of a conduit (not shown) which it is to be understood may lead in any direction, 55 its trailing side. Another important feature in 2,408,675 ' ~ - - 4 3 the channels’ construction lies in the fact that they taper outwardly. This is for the purpose of concentrating the mixture of granular material and air at the point of discharge during the rota tion of the impeller. 5 In summarizing, the practice of the method I T In a blower, the combination with a narrow‘ volute casing having a central opening for the in troduction of air and granular material, of a 1'0 tary impeller journaled in the casing provided with a plurality of separate independent channels opening at their inner ends into the central open employ for handling grain and like ?nely granu ing and extending tangentially of the central lated substances in conjunction with the de opening, said channels being tapered toward their scribed apparatus; I wish to point. outrthe, fol-1 outer.» extremities. . lowing. The: bladed" rotary elementin the, center 10 3. In, ablower,‘ the combination with a casing of the inlet imparts an initial rotary movement having a lateral discharge passage and provided and a mixture of air and grain at their point of’ with a central inlet for the reception of air and introduction to the impeller which eliminates ’ granular material, and a rotary device for mixing what I call breakage of the grain; i. e‘. anyhesi-w said elements before their entry into the casing, of tancy of the grain to take up the rotary move a rotary impeller in the casing having independ entnon-communicating passages leading tangen ment of the impeller and consequently prevents. any tendency to clog the inner ends of its chan tially from said inlet to its periphery which are nels. Having avoided this di?icultyI prevent any " graduated-in width from their inner ends out wardly to their point of discharge. tendency of the air at the center of the wheel? from tending to separate from the apportioned 20 4'.‘ In a blower, the combination with a volute quantity of grain, hence the pressure caused by casing having a lateral discharge opening and a the. weight of, the grain as it gathers tangential centralv intake opening, ‘and a- laterally‘ extending air and granularmaterial mixing chamber em velocity increases as it moves outwardly in each passage or channel and is discharged‘ there bracing the intake, of a. rotary‘ impeller in the from with great velocity with the result that there 2.5 casing,‘ a: mixing member rotating’ with the im is a'constant uniformv mixture of‘ air and‘ grain peller‘ lying in- said- chamber, said impeller hav ?owing continuously into, the delivery pipe or ing independent non communicating channels conduit. I have determined in practice that the located tangentially’ of the central opening» and mixture discharged by the impeller enters the arranged’ to receive separately at their inner discharge conduit. at a pressure severalv times that 30 ends- a mixed stream of air and granular mate Y rial from the‘ mixing member. 5. Ina blower, the combination wit-h av narrow volute casing having an; intake at one side for a mixture- of air and granular material, of an air I claim; ' 35 impeller journaled in the casing comprising a disc, pairs of spaced ribs» on the face of the disc 1. In a blower, the combination with. a casing of'the air alone and is, in proportion to, the speci?c gravity of the mixture and that it does not sepa rate, until entering a. distant bin or is passed through a special separator, for venting the air. having a laterally located discharge opening and disposed to’ form channels tapering from points a. combined inlet for air and granular material tangential‘ to the casing intake to the periphery of the disc, each of said channels being closed off‘ at its inner end from'the other channels. opening into its center, of arotary impeller pro Vided with a plurality of channels extending in wardly from its periphery having their open in ner ends located. opposite said inlet and each closed. off from the. channelsv at its inner ends. 40 ORLO CLAIR NORTON.