US1683244A - Disintegrator - Google Patents

Description

Patented Sept. fi, 1928.

unirse srarris A 1,683,244 narrar orFICE' WILLIAM IVI. 'DUNCAL OF .AI/20N, ILLINOS.y l

IDL'SINTEGRTOR.

vApplication led August 1, 19g/i7. Serial No. 203,809.

vThis invention relates to' disintegrators, and more particularly to a disintegrator providedV with pivotally supported hammers which strike the materialV to vbe crushed, pulverized, or otherwise acted upon. Hammers of thi-S kind usually consist of va head'formed integral with an arm, or arms, vwhich are pivoted to a rotary carrier. rlhe hammer# heads are rapidly worn away by abrasion and the shocks they receive in service. 1t is, therefore, necessary to frequently renew the hammers, and in the ordinary structures this involves the 'cost of not only the worn haininer-head, but also t-he arms or the like connecting the head to the rotary carrier.

One of my objects is to reduce the maintenance costs by producing a hammer with a simple and inexpensive detachable head which can be renewed without renewing other parts of the hammer structure. n

A. further object is to easily and quickly accomplish this without removing the arms,

or the like, which support the head., thereby reducing the labor of making repairs.

Another object is to produce a strong and durable connection adapted to securely attach the hammer head, without danger of breakage or displacement when the device in service.

With the foregoing and other objects in view, the invention comprises the novel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention. However, it is to be understood that the invention comprehends changes, variations and modifications which come within the scope of the claims hereun to appended.

Fig. 1 is a side elevation, partly in section, illustrating a rotary carrier provided with detachable hammer-heads embodying the features of this invention.

Fig. 2 is a section on the line 2-2 in Fig. 1, with some of the parts in elevation.

Fig. 3 is an enlarged section on the line 3,3 in Fig. 2.

Fig. e is aperspective view of one end of the detachable hammer-head.

Fig. 5 is a perspective view of the plate and keepers which secure the detachable head to the yoke or stirrup.

To illustrate one form of the invention I have shown a disintegrator provided with a rotary carrier comprising pairs-of disks 1 secured to a rotaryshaftrQ, so as to rotate with the shaft.V The disks of each pair be located between smaller disks 3 znf1`d `at'opY .I

posite sides of .as pacing disk 1p/Fastening devices', such as'rivetsmay be used toconr nectvthe several disks in each group.

6 designz'ites'V han'nnerheads' which may necting said arms. One end of each arm 71s confined between a pair of disks 1'. A'pivot rod 9 passes through both pairs of disks 1 and alsothrough the arms 7' to pivotally secure the hammers to the rotary carrier. Each pivot rod l9 is secured by means of a tube 10 (Fig. 2) surrounding the rod, and a cotter pin .11 passing throughsaid tube and rod. The inner disks 1 cooperate with the ends of the tube 10 to prevent longitudinal displacement of the rod and tube. To illustra-te a suitable means for securing the detachable lhammerheads G, I have shown a plate 12 seated on the connecting member 8 of the U-shapedyoke. This plate 12 is parallel with the member 8, but its side margins extend from the sides of said member as shown in Figures 1 and 3. rlfhe hammer-head has a longitudinal recess 13 in which the connecting member 8 is located, and the side walls of this recess are provided with longitudinal grooves 14C (Figures 1, 3 and 4)' to receive the extended side mar- 1 gins of the plate 12. rllhe hammer-head is thus securely interlocked with its holder by means of interlocking elements which lie parallel with the aXis of the shaft 2.

To illustrate a suitable retaining device for preventing longitudinal displacement of the head 6, l have shown keeper bars 15 between the ends of the plate 12 and the inner faces of the arms .7. These bars 15 are arranged transversely of the connecting member 8, and

their end portions extend through notches 16 (Fig. 11) in the ends of the hammer-head to preventlongitudinal displacement of said head. Each bar 15 is thus located between one of the arms 7 and portions of the headV 6. The endsof these keeper bars 15 may be bent as shown in Figures 3 and 5 to lock the bars in their operative positions.v

1n removing` the hammer-head 6 it is only necessary to remove one of the keeper bars 15, and to then slide the head longitudinally of the plate 12. The space between the flanges 17 on the head 6 is wide enough to receive one of the arms 7 so the arm does not prevent removal of the lead.

The circle 20 in Fig. l indicates the grinding surface which supports the material to be acted upon by the hammers.

I claim:

1. In a disintegrator, a rotary carrier, a

' hammer-holder pivoted to said carrier, interlocking elementsextending from the sides of said holder', a hammer-head having interlocking elements slidable on the first-mentioned elements, and a keeper cooperating with said head and holder to prevent displacement of said head. 'l Y 2. In a disintegrator, a rot-ary carrier, a hammer-holder pivoted to said carrier, ahammer-head removably interlocked with said holder, said hammer-head being slidable in a line parallel with the axis of said rotary carrier, and a keeper cooperating with said head and holder to prevent displacement of said head.

3. In a disintegrator, a rotary carrier, a substantially U-shaped yoke comprising arms pivoted toksaid carrier and a member connecting said arms, a hammer-head having a longitudinal recess in which said connecting member is located, said head and yoke` being provided with interlocking elements detachably securing said head to said yoke, and a retaining device cooperating With said interlocking elements to prevent displacement of said head.

4. In a disintegrator, a rotary carrier, a substantially U-shaped yoke comprising arms pivoted to said carrier and a member connecting said arms, a hammer-head having a longitudinal recess in Which said connecting member is located, said head and yoke being provided With interlocking elements detachably securing said head to said yoke, said interlocking elements being arranged longitudinally of said head and in lines substantially parallel with the axis of said rotary carrier, and a retaining device cooperating with said interlocking elements to prevent displacement of said head.

5. In a disint'egrator, a. rotary carrier, a substantially U-shaped yoke comprising arms pivoted to said carrier and a member connecting said arms, a plate seated on said member and extending from thelsides thereof, a hammer-head having a longitudinal recess in which said connecting member is located, the side Walls of said recess being grooved toreceive the extended portions of said plate, and keeper bars arranged over said connecting member and between said arms and hammer head to prevent displacement of said head.

In testimony that I claim the foregoing I hereunto ailix my signature.

yWILLIAM M. DUNCAN.

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