US1675464A - Shredder-type pulverizing hammer - Google Patents

Description

'to novel hammering Iatvented *.luly i.

- UNITED STATES PATENT `ol-*Flca WILLIAM at. rayon, E sfr.' Leurs, HissoRLAssIGN-on'ro `soncrHEai IANGANESE STEEL coMrANY, or sr. LOUIS, mssonnl, A coRroRATIoN or DELAWARE.

. sHREnDEn-TYPE rULvEnrzfrNo HAMMER.

Applicatin filed inne i0,

The vinvention pertains to hammers for pulverizing machines, and more particularly or bea-ting elements adapted to beattac d particularly to thef reels of an ore mill or pulverizing machine.

Difficulty has beenencountered in the usual ore machines providing .a hammer of such character that will force the crushed material through the grates so. that there will be no tendency of packing thel material on the grates if said material is crushed Vto when damp. In many instances, it is desirable that a particular kind of reducing element be provided for a peculiar kind or shape of ore, and itis of course impractical to have' reducing elements of different shapes be `substituted for other elements in an ore machine.

It is therefore an object to provide a novel,l convenient andainexpensive hammer for ore machines which will elfectively perform ore pulverizing functions.

Another object is to provide va hammer havin faces adapted to progressively contact tiie material to be pulverized. m Still another object is to provide a vhammer of such character that it may be readily reversed after some facesare worn to present unworn faces to the material acted on by the hammer. A further object is to provide a tool haying cutting ridges separated anddisposed 1n such a manner as Ito oier additional striking edges to the material to be acted on to there` by increase the working eiliclency of the hammer.

Other and more specific objects will readily occur from the detailed description, claims and drawings appended hereto.

In the drawings, whereinl like Areference characters are used to designate like parts`,.

Figure 1 is a 'partial sectional elevation, through an ore machine, 'showingthe appllcation of the present. invention to the reel thereof; v

Figure 2 is a side elevation on an enlarged scale of the improved hammer;

Figure 3 is a sectional end elevation of Figure 2, taken between theattaching armsv of the hammer; and

u Figure 4 is a bottom plan view of Fig-l ure2. e-

An ore machine 10 ott the usual type 1s provided with a longitudinal shaft 11 to` which the reels 12 are keyed. The ends of 1927. serial No. 1971300.l

these `.reels may be bifurcated and have pivoted thereto the improved hammer 13, pivoted by any means such as pins 14 passing through the bifurcated arms of the reels and through a hole 18 provided in the arm 17. The bottom of the machine is provided with a pluralityof grate bars 15 having portions so spaced that the` crushed or pulverlzed ore will passtherethrough.

yThe particular hammer 13, which is the sub'ect-matter of this invention, is formed wit 'a base portion 16 having spaced parallel opstanding arms 17 provided at either end thereof, said arms being provided with aligned holes 18 which, as already described,

are adapted to recei-ve the pivot 14. The

'base-is formed having a pluralityof stepped ridges, said ridges being shallower ad'acent the sides `of'the base and being gra uated t`o deeper rldges adjacentA the center. In other words, ridges 19,.2( )and 21 are' ro# gressively remote from wall 25 connec ing sides of j the hammer. These ridges are separated by slots orgrooves 22,23 and 2'4- respectively, said slots being in overlapping or staggered relation to slotsv between adjacent ridges.. ItA will be seen that, the corners of these slots provided in the striking end offer an additional strikingf edge which-basa tendencyto" increase the4 crushing effect of the hammer. Y

It `willreadily be appreciated that the old hammer ofthe slotted type becomes rounded and offers merely `a crushing efect, but with this hammer, due `to the disposition' of the videdas well as a crushing effect, which is very desirable as it has a reducing effect on the Vmaterial no matter what peculiar shape this material may take. A hammer having a plurality of faces of such character also more readily stirs up the material in the bot'- tom ofthe machine casing, causing the material to sift through the gratesl in spite of any'moisture therein whichvmay tend to cake or pack the materialin the bottom of said casing.

I do not wlsh to be limited by the exact embodiment shown, which is merely by way of illustration and not limitation, yas other and various yembodiments will of course be apparent to those skilled in theV art.

I claim:

series of stepped fades, slots provided in lprovided in said article and disposed between each row., the slots of one row being in overlapping relation to the slots in other rows.

4. As an article of manufacture, a hammer including a series of rows of stepped faces. graduated to dispose the deepest row at the center thereof, a series of slots provided in said article and disposed between each row, the slots of one row being disosed in overlapping relation to the slots mother rows, and attaching arms for said article. i l

5. In a device of the character described. the combination of a base having teeth, said teeth being in stepped relation to each other andfseparated by slots, and spaced attach ving arms formed on said base.

6. In a device of the character described, the combination of a base having ridges thereon, said ridges being separated by slots disposed therebetween.

7 In a device of the character described, the combination of a base having ridges thereon, said ridges being shallower adjacent each side than in the middle, said ridges being graduated from said edge to said middle ridges.

8. In a device of the character described, the combination of a base having ridges thereon, said ridges being shallower adjacent each side than in the middle. said ridges being graduated from said edge to said middle ridges, and slots provided'in said device separating said ridges.A

9. In a device of the character described, the combination of a base having ridges thereon, said ridges being shallower adjacent each side than in the middle, said ridges being graduated from said edge to said middle ridges, and a plurality of slotsv disposed in said device between ridges.

10. In adevice of the character described, the combination of a base having ridges thereon, said ridges being shallower adjacent each side than in the middle, said ridges being graduated from s/aid edge to said at intervals along middle ridges, and a plurality of slots disposed in said device vbetween ridgesfsaid slots being in staggered relation with slots between other pairsof ridges.

11. In a device of the character described, the combination of a base having ridges thereon, said ridges being shallower adjacent each side than in the middle, said ridges being graduated from said edge to said middle ridges, a plurality of slots disposed in said device between ridges, said slots being in overlapping relation with slots between other pairs of ridges.I and spaced aligned arms provided on said bar adapted to cooperate with an operating mechanism, saidv arms being pivoted to said mechanism along an axis parallel to said ridges.

12. A hammer including stepped striking elements, said elements having a greater depththan the distance between the striking faces of said elements.

13. A hammer including stepped striking elements, said elements having a greater depth than the distance between tbe striking faces of said elements. and means on said hammer for securing said hammer to a reel.

14. A hammer including stepped striking elements,y said elements being interconnected the striking y surfaces thereof.

15. A hammer including stepped striking elements, said elements being interconnected along the striking surfaces thereof, said elements having a greater depth than the distance between said striking surfaces of said elements.

16. A hammer including stepped striking elements, said elements being interconnected along the striking surfaces thereof, said elements having a greater depth than the distance between said striking surfaces of said elements, and means on said hammer for securing said hammer to a reel.. A

17. A hammer including stepped striking elements, said elements being interconnected at staggered intervals along the striking surfaces thereof. i

18. A hammer including stepped striking elements, said elements being interconnected atstaggered intervals along the striking surfaces thereof, said elements having a greater depth than the distance between sai striking surfaces of said elements.

Signed at St. Louis, Missouri, this 1st day of June, 1927.

WILLIAM M. PRYOR.

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