US2498151A - Plural - stage stone - crushing mill with independent and arcuately swingable jaws - Google Patents

Description

21 19% J. L. BREQKLEY 294939353 PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT AND macummwswmsmm JAWS 4 Sheets-Sheet 1' Filed Jan. 23, 1948 Feb. 21 1950 ICKLEY 2,498,151

J. L. BR PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT AND ARCUATELY-SWINGABLE JAWS Filed Jan. 23, 1948 Y 4 Sheets-Sheet 2 I \0 N I I I I I m I Q Q I I 1% I t w I o o o o I: |I I I I g I I I o o e 0 6' II I I o q o I: q-

I I I I o o o s i w I I I I Q Q I I a b \I m l a 8 E I N I I I II LI m M t 3 E w t\ I JLJFrz'ckZgy INVENTOR ATTORNEYS.

Fe 21, 1950 J. L. BRICKLEY 2,498,151

I PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT AND ARCUATELY-SWINGABLE JAWS Filed Jan. 23, 1948 4 Sheets-Sheet 3 ATTORNEYS.

Feb. 21, 1950 J. L. BRICKLEY 2,498,151

PLURAL-STAGE STONE-CRUSHING MILL WITH INDEPENDENT AND ARCUATELY-SWINGABLE JAWS Filed Jan. 4 Sheets-Sheet 4 JZJSrz'citZey INVENTOH ATTORNEYS.

Patented Feb. 21, 1950 UNITED STATES PATENT OFFICE PLURAL- STAGE STONE CRUSHING MILL wrrn INDEPENDENT AND ARCUATELY SWINGABLE JAWS James L. Briokley, Spokane, Wash.

Application January 23, 1948, Serial No.3,921

action and grinding action takes place as the hammers swing.

Another object of the invention is to provide a machine which will permit the elimination of particles of finished product as soonas they are formed, thereby preventing the-accumulation of finished material forming a so-called cushion-to retard and hamper the" milling operation of the ."whi'ch appear as the deseription -prooeeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the elai'ms, it being understood:- that changeszinay :be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.-

"Referring to the. drawings:

Figure 1 is a sideelevational view stamaehim Fig. 7 is'a perspective view of one of the swinging hammers, forming a part of the invention.

'Fig.--8 is-a perspective view oi one of "the cups of the elevator wheel.

Referring to the drawin'gsin' detail, the comprises a body p'ortionor frame including a base indicated generally by the reference character 5 to which thesheet metal side members 6 of the body portion are secured, the upper ends of the sheet metal side members being held in spaced relation with respect to each othenby means of the cross" bars 1 disposed adjacentzto the ends of the side members.

The sheet metalside members are formed with outwardly disposed longitudinal flanges at the upper edges thereof, the flanges being indicated by the reference character v8', and to these flanges are secured bearings 9' that are bolted in position by means of tl ze*b"o'lt's i0. Transversely disposed shafts ll have their ends mounted in the bearings 9, and providesupports forthe-hanger arms I! which are'mouiite'd on the shafts I I, adiacent to theends thereof, thearms 12 providing sup- ;p'orts for the-hammers- 13 which enrbodyheavy weighted members, the heavy weighted members in the present showing comprising long metal bars l4 provided with hard steel eaps l5 that completely house" the side fades of the long metal bars, providing wear surfaces to contact the stone or rocks being treated.

As clearly shown by Fig. 3 of the drawings, these hammers are arranged one-above the other, and are three innum'ber, although the number of hammers 'supportedonthe hanger arms, may be varied "to meet various requirements.

The hammers are" arranged in parallel spaced relation with respect to each otherand are so mounted that they will swing freely towardsand away from each other, withthe result thatstones to the center of which are attached arms I8, the operating arms l8 or connection between the central hammer and operating arms being at the ends of the lowermost hammer element of the central hammer, as shown by Fig. 3 of the drawings.

These operating arms have their rear ends connected by means of the transverse bar l9 that has spaced bearing ears 28 between which the arm 2| is pivotally mounted, the arm 21 being pivotally connected to the lower end of the link 22 that in turn has pivotal connection with the pitman 23 that is pivotally connected with the shaft 24 mounted on the main frame 25 forminga part of the power element of the mill.

The rear'end of the'pitman 23 connects with the link 26 that in turn is connected with the crank arm 21 secured to the shaft 28 mounted terial deposited between adjacent hammers will be broken by the hammers moving towards each other. As the central'hammer moves rearwardly, the stones and material deposited between these hammers will be crushed by the action of the hammers moving towards each other.

The side members 6 are connected at a point intermediate their upper and lower edges, by

means of the bar 33, which bar is provided with openings through which the bolts 34 move, the bolts 34 providing supports for the coiled springs 35 that also bear against the bar 38. These springs and bars 33 and 36 provide a stop of a yieldable character, and against which the adjacent hammer engages as the hammers at this side of the central hammer move rearwardly.

Pivotally supported on bearings that extend inwardly fromthe side members 6, are hanger through openings in the movable trough 38, the

rods 31 having threaded ends 38 on which the nuts 48 operate whereby the angle of operation 'of the trough 38 may be regulated. This trough .rods 31 that have their lower ends extended 38 hangs directly under the hammers, and ex ,tends throughout the width of the body portion of the mill to receive material which has been crushed between the hammers, as the material falls from the hammers.

Extending forwardly fromthe front hammer lare arms 4| that are in alignment with the hanger rods 31 at the front end of the machine, so that as the hammers move forwardly, these arms 4| will engage the hanger rods disposed trough supported thereby, to shake the trough 38 and feed material to the lower .end thereof.

Extending into theupper portion of the body,

is a feed trough 42, to which material from the spout 43 is delivered, the material passing over..-

the feed trough 42 onto the hammers l3.

Directly in front of the discharge end of the rected into the trough 45.

Secured to the base,. and rising therefrom,

adjacent thereto, moving the hanger armsv and:

mounted on the upper end thereof, the bearing 41 providing the bearing for the shaft 48 on which the elevator wheel 49 is secured to operate therewith.

The elevator wheel is of a construction so that the cups 50 thereof extend forwardly from the ring 5!, the cups moving in a circle around the extended end 52 of the trough 42. Thus it will be seen that as the elevator wheel operates through the trough 45, material will be picked up by the cups 58 and deposited on the extended end 52 of the trough 42 where the material will by gravity, feed to the upper surfaces of the hammers which being in motion, will crush the material between the adjacent faces of the hammers, as the hammersaremoved towards each other.

A pulley indicated by the reference character 53 is secured to one end of the shaft 48 and receives its motion from a suitable power device not shown, through the belt 54.

In the operation of the mill, coarse mesh rock is fed through the spout 43 of the feed hopper, onto the feed trough 22, from where the rock is delivered onto the upper ends of the hammers l3. As the hammers are moved into and out of contact with each other "rapidly, the rock falling between adjacent hammers is crushed between the hammers and falls into the trough 38. As the trough is reciprocated by the action of the hammers, the material is fed into the trough or sump 45, where it is picked up and carried onto the feed trough 42 for further crushing.

With this mill, coarse mesh rock or material will be reduced to the desired grade with the minimum amount of wear on the mechanism of the mill.

Having thus described the invention, what is claimed is: I

1. A rock crushing mill comprising a body portion, a row of depending independent vertical swinging arms mounted on the body portion in horizontal spaced relation with respect to each other, a plurality of superimposed vertically spaced hammers mounted on each arm, the hammers of adjacent swinging arms being spaced apart, operating arms connected with the lowermost hammer of the intermediate arm of the row of hammers, whereby said hammers are moved into crushing relation with each other as the operating arms reciprocate, crushing stones delivered therebetween, and means for'deliveri'ng stone to the spaces between adjacent hammers.

2. A rock crushing mill comprising a body portion, a row of horizontally disposed shafts supported on the body portion, a row of depending swinging arms mounted on the shaft, rows of superimposed hammers spaced apart and secured to the arms at pointsbelow the pivot points of the arms, the hammers being disposed in vertical spaced relation with respect to each other, operating arms connected with the lowermost hammer of one of said arms, means for reciprocating the operating arms moving the hammers of adjacent arms into crushing relation with respect to each other, and means for cushioning the movements of the swinging arms.

3. A rock crushing mill comprising a body portion, a row of horizontally disposed shafts supported by the body portion, a row of depending swinging arms mounted on the shafts, superimposed hammers secured to the arms: below .the pivot points of the arms, said hammers being dis- "posedin vertical spaced relation with respect to are supports 46 which have the bearing 41 each other, operating arms connected with one 5 6 of said hammers, and means for reciprocating the Number Name Date operating arms moving the swinging arms and 257,852 David May 16, 1882 hammers crushing material delivered between the 308,234 Blake Nov. 18, 1884 hammers of the swinging arms. 439,374 Blake Oct. 28, 1890 JAMES L. BRICKLEY. 5 646,516 Brown Apr. 3, 1900 955,555 Sauerman Apr. 19, 1910 REFERENCES CITED 973,761 Cline Oct. 25, 1910 The following references are of record in the 1293188 Pfersch 1919 file of p t t: Pudan 23, 10 2,001,549 Sandy May 14, 1935 UNITED STATES PATENTS 2,094,465 Peterson Sept. 28, 1937 N'mnber Name Date AinSa July 15, 187,375 Hall Feb. 13, 1877 238,176 Speers Feb. 22, 1881 FOREIGN PATENTS 252,080 Dalton Jan. 10, 1882 5 Number Country Date 256,959 Blake Apr. 25, 1882 338,414 Germany June 17, 1921

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