US908801A - Alfalfa-grinder. - Google Patents

Description

Patented Jan. 5, 1909.

2 SHEETS-SHEET 1.

@nvcwfot .Th 'eoclore P T. PONSAR.

ALFALFA GRINDER, APPLIOATION rnnn nov.21,19oe.

Patented Jan. 5, 1909.

2 SHEETS-SHEET 2.

Theodore Rvnsar; Quwutoz.

' ;-fectively: cuttingand breaking. up the stems g a'nd tougherportions of the material, means for. quickly removing the material from the grinding-cylinders as soon as itis reduced to .partiiclesgofthe desiredsize, thereby av0idmgundue pulverization of the leaves and more-fragile ortions ofthe material, means- .for. keeping t e material within the grinding cylinders constantly in the pathof greatest QWentingclogging' of the cylinders by too -.-rap1d..feed1ng=-of moist and tough materials inclosed space between the same and the 'toothedconcave plates and perforated metal screens.

4 ncisor-3,1301".

-,T0 all-whom it may concern Be it ,knownthatl, Tnnononn -',@itiZGn.Qf the United States, and a resident of ;Sou.th Omaha, inthecounty of Douglas and .Stateiof N ebraska, have invented certain new* and useful.Improvements in Alfalfa- Grinders, of. which-the following is a specification.v :7. 1

ingalfalfa clover or other foliage crops, and -.-1-t 1s the-QbJect thereof to provide in a mathe feed. chute 17, as shown.

PONSAR, a

My invention relates to machines for grindchine of this classmeans for quickly and efdestructiye action, automat1c vents for pref nppljcation meanness Serial n6. i i i was QM HA IW BM KA Ilett er a latentl with a suitable'exllaust fan..." The upper portions of the casing are hinged to the lower portions and may be swung outwardly, as'indicated by the dotted lines in Fig. 1, to give access to the concave plates and screens.

Secured to the shafts '3 and 4, adjacent-the side plates 1, arethe spider wheels 32. Said wheels areprovided on, theirouter rims with slotted radiallyextending lugs 30,. to which der bars 21 are vadjustably secured by the screws22 passing" through theslots in the lugs. On the ends of the shafts 3 and 4. are the belt ulleys 23 by which the cylinderh are driven, oth cylinders being arranged :to evolve in the same direction, as-indicateclj by the arrows A,A in Fig.1..

the longitudinally extending toothed cylin- I The teeth on the barsxof each cylinder -are so-,arranged as; to

pass between the teeth onthe: bars of the the cylinders. The teeth on the concave plates are arranged, to extend between the fifomthe machine any'pieces of metal or other dent fedinto the machine, and certain other novel constructions as will .be more fully setforth hereinafter. a p I Constructions embodying my invention are shown in the accompanying drawings in which Figure 1 is a longitudinal sectional view of g the mechanism, Fig. 2 is a sec tional plan view 1 ofthesame, Fig. 3 is a partial side elevation l thereof, and Fig. 4 is a detail section of a portion of one of the perforated metal screens.

In the drawings 1, 1 represent suitable side plates having formed therein bearings 2 for the cylinder shafts 3 and 4. The toothed concave plates 5, 6, 7, S and 9, and the perforated metal screens 10, 11, 12, 13, 14 and 1'5 aresecured between the side plates 1, be-

At the lower side of the machine 1 the said casing 18 merges into the exhaust chute 19 which is extended to and connected.

other cylinder at the arcs of,intersection of teeth of'the cylinder bars, andatthe ends of the cylinders toothed rings 24 are'secured to.

theslde plates. 1, the teeth on said rings extending into notches in the ends of the cylinder bars, as shown in Fig. 2.

secured the fan blades 25, the, same being so.

; arranged that the forward faces thereof lie in the same planes'as the faces of the corresponding cylinder blades. When the mac ine is 111 operation these blades 25, together with the cylinder blades, serve to Reepthe m'ateria'ls thrown outward from the centers of the cylinders, thus bringing said materials against the screens and into the interengag- 'ing teeth of the cylinder blades and concave plates. The said blades also assist in cans mg currents of air to be drawn into the central parts of the cylinders through the openings 26 in the side lates 1, and thence driven outwardly througi the screens and the erforations in the concave plates, the sai air currents carrying the material through the screens and plates as soon as it is reduced to .3 particles small enough to pass 'throughthe 5 perforations in the same.

One of the c *linders is of greater length than the other, the ends of the longer cy der extending into the projecting ortions 27 of the side plates 1, as shown inig. 2. In

On the radial arms of the spider wheels are the side of each of said pro'ecting portions 27 is an opening over which ts a gate 28 which is hinged above the openlng and provlded with a weight 29, arranged as shown in Figs.

2 and 3, the said weight normally holding the gate in closed position. When the machine is overloaded the excess of material tends to collect around the ends of the longer -nel 30 which is extended through the side plates 1, the openings to the channels being closed by plates 31, as shown in Fig. 3. The said channels are for thepurpose of collect- I ing any particles of metal, rock or other refractory materials which may beby accident fed into. the machine. Any of such materials which collect in the channels may be readilyremoved by taking off the plates 31 on each side of the machine and pushing a 7 rod through the channel fromend to end.

material passing endwise through the perforations of the screens I prefer to corrugate' To lessen the probability of stems of the or roughen the inside of said perforations. The] most convenient way in which this cor- ,rugation may be effected is by threading the perforations in the screens, as shown by the enlarged detail view thereof in Fig. 4.-

cylinder casings comprising alternately ar- Now, having described my invention, what I claim and desire to secure by Letters Pat-.

entis:

1.. In a machine of the class described,

' v ranged screens and toothed! concave plates,

toothed cylinders revoluble in intersecting arcs,.;the, teeth of each cylinder being ar-.

ranged to interengage with cutting action with the teeth of the [concave plates and of the other cylinder, an inclosed exhaustspace surrounding the screens and concave plates, and fan blades carried by the cylinders for the purpose set forth.

'2. In a machine of the class described, toothed cylinders 'revoluble in intersecting arcs, a perforate casing surrounding said cylinders,- said casing having teeth interens gaging with cutting action with the teeth of the cylinders, an inclosed exhaust s ace surrounding said perforate casing, sai exhaust space having an outlet for removal of the materials passing thereinto through theperforate cylinder casing, air inlet openings adjacent the axes of the cylinders,and means for drawing air into said openin s and driving the same out through the perforate cylinder casing.

3. In a machine of the class described, cylinder casings comprising perforated metal screens and toothed concave plates, the eri forations of the screensbeingcorrugate or roughened as described, cylinders revoluble within the casings, toothed bars carriedby the cylinders and adj'ustably secured thereto, the teethon the said bars passing with cutting action through the teeth of the concave plates and adjacent the inner surfaces of the screens, and fan blades on the cylinders ad-' jacelrlit the toothed bars for the purposes set fort In testimony whereof I have hereunto subscribed my name in the presence of two-witnesses.

' THEODORE PONSAR'. Witnesses:

D. O. BARNELL, A. J .LOWRY.

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