US1078650A - Shredding-hammer. - Google Patents

Description

M. F. WILLIAMS.

SHREDDING HAMMER.

APPLICATION FILED MAY 31, 1913 1,0'?,65,, Patented Nov. 18, 1 -913.

M'Meases I /m/e/770) M/lfon F MY/iams clear, and exact description, such as will en:

mills of the that the shredding members L which they are subjected.

CRUSHER dc I ULVERIZER 'CGMPANY, ST. LDUIS, MISSOURI, A. CORPORATION OF MISSOURI.

SHREDDING-HAIIIMER{ 1,0t8,650. Sp i ca ion (if Letters P en Patented-Nov. 18, 3 3 Application filed MayBl, 1913. Serial No. 771,107. I

desired that such pivoted shredding meme bars have weig 1t sufiicient to insure their acting effectively upon the material, which action is accomplished by theirbeing held out radially of the shaft by centrifugal force. The form of shredding hammer here in illustrated, and which I consider my invention, possesses these se addition to being economical to mannfac ture, easy to sharpen and repair, of effective form for various shredding operations, and self-clearing. i

As illustrated in Fig. 2, shredding hammer may be made up of a series of knife-like meinbersfirs i'vetcd to gether and having their points or'operating ends '10 bent 'or flared apart from one another. The end edges and points 11 are suitably sharpened or formed according to the particular use to which the hammer is to be put. A suitable means 12 is provided whereby the hammer may be mounted upon. the actuating member. The flared operating ends "'10. provide line shredding elements which are adapted to shred the material acted upon very finely. Placed. as they are closeto one another, and firmly held in this relationship, the shredding edges operate very effectively on material, as they co- To all whom it may concern 4 Be itknown that I, MILToN F; WILLIAMS, a citizen of the'United States, residing at St. Louis,'Miss'ouri, have invented a certain new and useful Improvement in Shredding Iammers, of which the following is a full,

able others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, forming part of this specification, in Which- I Figure 1 is a'sectional elevation of a r0 tary mill showing the application of my invention. Fig. 2' isa perspective view of one form of my invention. Fig. 3 is a perspective view of a modified form of my invention.

My invention relates broadly to milling and specifically to a form of shredding hammer for use in rotary mills.

The principal, object of my invention is to produce an economical andeflicient shredding hammer.

A further object or my inventionis to provide a rigid shredding hammer having small or fine shredding units, yet having the requisite weight to insure effective operation.

i further object of my invention is to provide a shredding hammer which will be self-clearing and not subject to clogging by shredded material.

Other and further objects of my invention will be obvious or hereinafter pointed out.

Referring to the drawings it will be understood that my improved hammer is for use in a rotar' mill 1 wherein mounting disks 2 are carried on the shaft 4, and the hammers 5 are pivotally mounted at 6 on the disks 2. A suitable concave Z is adapted to cotiperate with the hammers 5, in the reduc tion of thematerial which is introduced into the-feed hopper 8.

In the fine shredding of various materials it is essential that the cutting or shredding elements be quite thin or fine in order to shred the material to the desired degree of fineness. Moreover, in f rotary shredding sort illustrated it is essential possess a high degree of rigidity or stability'so as to prevent their being distorted, or their action diverted, due to the great force with which they. are operated, and the resistance to Moreover, itis material between them and hold it positively to the action of the respective edges.

T o avoid the possibility of finely shredded material becoming lodged in. the space between the blades 9, and the eiliciency of the hammer decreased, clearing apertures ll are provided through the blades 9, opening just below the line where the blades come into contact. Material which is forced between the blades readil escapes through these apertures, and the space between the blades is thereby kept clear.

As illustrated in Fig. be disposed parallel to but separated from one another, instead of flared apart. This form may be built up of separate blades 3, the blades 9'1nav spacing strips between them, or this form may be out out of a suitable bar.

From the fm'egoing desmiption it will be seen that my form of shredding hammer has decided advantages in that while the shredding elements are quite line. they are at the "eral attributes in my improved operate with one another to compress the.

same, time quite rigid, and in operation each has the benefit of the momentum. accruing Hi9 Gnon T0 witmans M rna? riveted or welded together with suitable the device may be made without'departing from the combined Weight of all. Moreover, members being provided with an aperture their relative location 15 such as to produce an intimate and effective cooperation be tween them whenthe device is acting upon material.

I am aware that further modifications in it and its adjacent operating members.

a concave, a shredding hammer mounted upon the shaft and Edit ted to cobperate with the concave, said shredding hammer :i'rom the scope of What I claim to be my invention, and it is my intention that the following claims be construed to comprehend aii such modifications.

I claim: p

1. -A shreddin hammer consisting of a plurality of kni elike shredding elements separated at their operating ends, and con joined in a common shank portion, certain of said shreddin elements being provided with apertures or the purpose described.

2. A shredding hammer comprising a shank portion divided at one end into a plurality of operating members disposed apart from one another, each of said operating members conjoined ina common shank portion and having their minimum width equal to the width of said shank portion, said operating members being provided with between them. I

In testimony whereof I hereunto afiix my signature in the presence of two Witnesses, this 26th day of lay, 1913.

MILTON 1?. winmans,

Witnesses:

M. P. SMITH, C. L. BUTLER.

communicating with the space intermediate 3. In combination with a rotary shaft andcomprising a plurality of thin shredding.

apertures communicating with the spaces

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