USRE11512E - Discharger for pneumatic straw-elevators - Google Patents

Description

F. 1". Lufmlsl DISCHABGER FOR PNEUMATIG STRAW ELEVATORS. N .11,512.k

lReissued Nov. 12, 1895.

/NVENTOH jUNITED STATES PATENT OFFICE.

`DISCHARGER FOR PNEUMATIC SvTRAW-ELE'VAITORS.

SPECIFICATION forming part of Beiuued Letters 'Patent No. 11,512, dated vNovember 12, 1895. Original No. 512,567,1lated January 9, 1894. Application for reissue ledeptcmber 12, 1895. Serial No. 562,340.

To all whom it-may concern.- 1 Beit known that I, FRANK F. LANDIS, a citi-l zen of the United States, residing at lVaynesb0rough, i ,l it he countyof Franklin and State of Pennsylvania, have invented certain new and useful Improvements in Dischargers for Pneumatic Straw-Elevators, of which the following is a specification'.

This invention relatesto dischargers used in thrashing-machines in connection with the pneumatic straw elevators and siackers; and itconsists in the novel construction and com.- binaton ofthe parts, whereby varieusadvantages are secured, as will be hereinafter tully described and claimed.

Referring to the accompanying drawings,

which'are madea part `hereof 'anden which,

siinil'arlettei-s of :reference indicate similarY parts, Figure l is. a sectional view through the discharger or fan as seen when looking in 'the direction indicated by the arrowsy frein the dotted line l 1 in Fig. 3, showing aiso'the sur rounding casing and a portion oi.' the thrashing-machine or separator-casing. Fig. E. is a sideelevation of the fan or discharger casing separately; Fig. 3, a detail inside elevation of the discharger or fan separately, as seen from Irhe dotted line 3'3 in Fig. l, the casing being removed; andFig. 4, a detail en'd view of one blade of the discharger or fan. In sai'd drawings the portions marked A represent the casing of a grain separator or thrashing-machine; B, the fan or diseharger casing which is secured to the side of said separator; C, a shaft mountedin the lower rear endof lthe machine upon which the parts embodying the principal features of 'my present invention are mounted; D, ya barrel or drum` on said shaft; and E,the fan or discharger hub, also mounted onsaid shaft C.

The thrashing machine or separator, of which a fragment A of the casing is shown, is or may be of any ordinary or desired form or construction, and as it is not peculiar to luy present invention will not befurt-her described herein, except incidentallyin describing said invention. Y l

' The fan or discharger casing Bis secured to one side of the separator-casing A, near the lower side and rear end thereof, and incloses the discharger or fan. The outer end of said casing is inclosed by the preferably-removable plate B', and on the outside of this plate is secured thespider B, at the center of which is a hub b, which formsone ofthe bearings for the shaft C. Said plate and said spider are secured tothe casing prop er by the bolts 1g'. These parts are thus removable and ready acecssis thus provided to the' fau or discharger casing from the outside, and through the opening left when these parts are removed the discharger and attached, parts can be inserted and removed, as desired, which the otherorjinner side of thedscharger-casing an opening is provided, which leads int-o and chaff are thus enabled t`o be more readily moved from the straw-chamber into thedischarger-casing, as will be readily understood by an examination of Fig. l of the drawings. Saidopening is preferably surrounded by a lip '1), near which the edges of the fan-blades revolve. 'lhe casing' l5 develops into a discharge or outlet pipe B3, which is connected with the usual chute (not shown) leading to the point where the Straw isv to be finally discharged as in other pneumatic stackers.

The shaft (lis mounted in suitable bearings a. and 112, and isdriven by a suitable belt (not shownlrunning to the pulley C' thereon. lt carries the fan or disharger and the conveyor leading thereto.

. The barrel or convcyer-body D is mounted on the shaft C,and extends transversely across the straw-chamber within the separator-cas ing, as shown, and is preferably somewhat conical' in form. Secured to this barrel or body are inclined wings D', (known variously conveyerblades and conveyerilights,) by which the straw and chaif are urged transversely of the straw-chamber and, parallel with th e shaft, into the inlet of the discharger or fan casing. It will be' observed that by this arrangement the fan or discharger is a large portion of the obstruction which would otherwise exist in the straw-chamber,

while at the saine time, luy-means of the conis a matter of considerable convenience'. yOn

.located icone side of the se arator. reincvin' .struction --Thefan o r discharger consists, the conshown, ofa hub E, mounted on the shaft.C,'a disk cr'plate' E". on the outer side,

' andxwings E?, secured to said' hub and said y charger then resumes its original position auing the shaft C in its j The operation 4 scribed its-follows: The straw, after being' -thrashed in the .usual disk on the `inner side by bolts or rivets e e; butthe hub, the disk, and the blades may all becast inl one piece instead of being formed` separately and secured together, as herein shown. .As illustrated, the blades E2 have portions eextendingjnto a parallel `relation with'the disk E', while the inain portions of Said blades are at tieularly. in Fig. 4.

of my machine may be demanner, falls into the straw-chamberwithin thenceforeed into the fan or discharger casiugdby th'esuction of the fan and .the operationof the .inclined wings or conveyer blades or flights D. The' air and straw drawn vand forced .into the discharger-casing are forced up the outlet-pipe 'Ba by the action 0f Vthe re- 'lhe portions 'e2 ai?, and ,iS kept in motion thrown on with it. by the'diecharger; When a bunch of straw strikes the part e2 of a blade and is drawn between said' part and l'the lip b, the 'diseharger slides automatically away from; the lip and vpermits the straw t0 DESS. The dis,-

te'd by so mountbearings as to allow it to slide longitudinally in said bearings in one tomatically. This 'is permi direction, its movement in the other vdirection being limited by a suitable collar or shoulder, as C, which comes in contact with a suitable bearing, as the bearing. b2 on the spider B. The tendency of the force of the air-pressure in' the fan casing behind the disk E. is to move the discharger and its shaft endwise-and keep the collar in contact with the bearing; butit will yield suiiiciently when straw is jammed in between the discharger blades and the lip or throat around the ingress-opening to. permit the straw to. pass as above stated, after which the force of the airpressure returns it immediately to position.-

The straw which sdrawn in near the center of the discharger is caught by the portions e2, which prevent it from being thrown back into the inlet leading into the straw-chamber. I have ascertained that when the dischargerblades are constructed in this manner the diseharger will do at least as much work when drivenat a less velocity as it will when driven at a higher velocity if the blades are. con-A structed without the portions whereby channels are formed in their faces, besides securing the other advantages above specified.

Having thus fully described my 'said invenright angles with said disk,. as is clearly illustrated inthe drawings, parthe lower, rear portion. of v-the casing A. The straw andv chai are tion, what I claimas new, and desire to secure by Letters Patent, is-.` v I .,l. vThe combination, in a pneumatic straw elevator, with. thestraw chamber, of a. discharger or fan embodying. a'disk on one side, and a series of blades secured to one side of sai-:l disk; each blade beingprovidcd with a portion substantially ing together disk the sides and bottom of a channel in the face ofthe blade. f

2. A discharger provided with a hub, a disk on one side,.and'a series of blades, each said blade being provided with a portionsubstantiallyv parallel to the disk and forming, to` gether with the disk, the sides and bottom of a channel in the front face ofthe blade, substantially asset forth.

3. A diseharger provided with a central hub having a concavev plate, a flat .circular diskat the larger endof -s aid plate, and a separallel to the disk, and form- With'the adjacent portion or" the l ries of rearwardlycurved blades, each pro vided with al portion substantially at a rightangle to' the disk, and a portion substantially parallel with the disk, said. portions being 'eolmecfedtogethen substantially as set forth.

The combination,` in a pneumatic straw elevatonfof a' casing located atr one side of f the chamber into' which the straw. falls after being thrashed land havin an opening which 'communicateswith said c amber, acentrifugal discharger or fan located in said ca-sing, the 'shaft-5 whereof extends into said straw chamber, andinclined wings or conveyer blades o'rights carried by saidshaft, whereby the straw and' chai may be urged toward and into s aid discharger .or `fan casing.

5. Thecombination, in apneumatic straw elevator; of a casing. Seur'ed to one side of the straw chamber and provided with an opening leading into said chamber, of a fan or discharger located in said casing consisting' of adisk on the opposite side thereof from the opening, between it and said opening, a conveyer on the same shaft as the fan and locatedin the straw chamber vand which operates to move the straw and'chaif sidewise toward the fan or discharger.

6. The combination, with the chamber for receiving thestraw, of the longitudinally movable discharger shaft, abarrel secured on the said shaft inside the said chamber and provided With inclined projecting wings, the discharger casing provided with a conical inlet and a proj ectingannular lip, a discharger secured on the said shaft and provided with a flat disk on one side, and a collar secured on the said shaft and preventing the discharger from touching the set forth.

7. The combination, in a pneumatic straw elevator, of a casing located at one side of the chamber into which the straw falls after being thrashed and having an opening which communicates with said chamber, a centrifugal discharger or fan located in said casing,l

and wings secu-red to said disk said lip, substantially as roo IIC

barrel or drum in said straw .chamber -mountcd on the 'same shaft as the discharger or fan, and inclined wings or conveyerblades or flights secured to saidbarrel or drum,

whereby the straw and chaff may be. urged toward and int-o said discharger or fan casing.

8. The combination, with t-he discharger, of

tlie discharger casing provided with a-n inlet 0n one side and :m opening for inserting the discharger on the other side, aplate closing the sa-id opening, a spider having a. hub for supporting one of the discharger-shaft bearings, and bolts securing the said spider and plate to the casing, substantially as set forth.

9. The combina-tion, with the dscharger, of

the discharger casing provided with an inlet on one side and an opening for inserting the dscharger on the other side, af removable cover plate closing the said opening-fendl means for securing the cover pla-te to the casing, substantially as set forth.

In witnesswhereof I have hereunto vset my I hand and aixed my se'ah'at Indianapolis,

Indiana, this 7th day of September, 1895.

` FRANK F. LANDIS. Witnesses:

CHESTER BRADFORD, JAMES A. WALSH.

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