US1047738A - Tamping-machine. - Google Patents

Description

Patented Dec. 17, 1912.

2 SHEETS-SHEET 1 A fjc. W. BRADLEY. TAMPING MACHINE. APPLICATION FILED 00T- 6, 1911.

G. W. BRADLEY.

` TAMPING MACHINE. A APPLIGATON'PILBD 00T. s, 1911,4

Patented Dec. 17,191.2. Y

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' 'errantes wnnannnr, or zoox RAPIDS, IOWA.

'murine-MACHINE. i

Lerares.

Specification of Letters Patent.

t patented Dec. 17,1912.

To'cZZ who-mit mafiylconcern:

Be it knownthat I, CHARLES WQBRADLEY,

citizen of the United States, 4residing atv Rock Rapids, iii thecount'y of Lyon .and Stat-e of Iowa, haveginvented certain new and useful Improvements in Tamping-Ma-- chinos, of ywhich the .following 1s a speciiiCatiOn.

This invention relates t ramping machines, and has for itscbject toprovide a simple and an eiiicient machine especially adapted to be used for t-amping plast-ic vmaterial, as for instance cement, mortar-I 'or 4clayin molds.

With this object in .view the l Iiitchine includes a frame adapted to' be positioned overa mold, which may be of anydesired struc ture, the said frame having ljournale'd therein a shaft provided with a series of cranks.

Frames are mounted for vertical sliding, movement upon the` first mentioned frame.

. and are located in the paths'of movement of the said cranks when the cranks are moving in an upward direction, butwhen the cranks begin to descend they pass beyond theends of the movable frames so that the vsaid frames and` their attachments may drop. Spacvd tamping rods `are carried'by each of the movable frames and tampi'ng heads are fixedl to the' lower ends of the lsaid rods and are adapted to operate upon Vthe material-in the mold. Means is provided lfor holding the tamping rods and movable frames in'elevated positions so that t-hey may not be lifted by the cranks when it is .desired that the tamping operation shall cease.

For a full understanding of the invention reference is to be'had to the following descriptio'n and accompanying drawings, inl which `Figure 1 is a side elevation oft-he taniping -inacliine; Fig. 2 is a front elevation of the same; Fig. 3 isl a perspective view of the same; and ffig.` i-is a horizontal sectional View of the same on the line 1f-4 of Fig. 2. Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying draw ings by the same 4reference characters.

The tamping machine'consists of a frame 1 which is supported in elevated position above a mold 2. The mold 2 may be of any desired pattern or forni. A shaft 3 is jour* nalednpon the frame 1 and isV rovided with albeit wheel L1 arorndwhich a' elt may l Application filed October (ci, 1911. Serial No. 65$,220.

i be trained for the purpose of rotating the shaft. The shaft 3 is provided with a series of cranks 5, preferably four in number, and these cranks are disposed in different directions about the axis of the shaft 3. Upon the pin 6 of each crank a roller 7 is loosely journaled.

Frames 8 are mounted 'for vertical sliding movement at the upper portion -of the :frame 4l and leachsaid frame 8 carries t'wo tamping rods 9, these rodsbeing spaced one from 'theothen y'Iamping heads 10are fixed t`o the lower ends of the rods 9 and are adapted tooperatein the mold 2 at the opposite side portions/ thefreof. All of the rods '9 are proc. n

vided on onje side with a lug 11. l fPlates 121 are hinge'dly mounted at their lower e'ndsnpon the lower port-ion of the frame 1 and 'extend up alongside-the lower portions ofthe rods 9. A rod 13! passes; transversely through the upper portions of y all of rthe plates `412 and is provided with stops 14 against which the sides of the said plates 12 bear. Coiled springs 15 are threaded upon the r`od13 between the plates 12 and the next adjacent stops 14: and serve as means for resiliently holding the plates 12 against those stops 14 upon which they bear.- The rod A13 projects at onej end portion -beyond the side'offthe frame 1 and the .intermediateportion of a lever 16 is vconnected with the projecting end portion of the said rod. The lever 16 is fulcrumed 4to the upper portion of the frame 1 and the lower end portion of the said lever is adapted to beengaged with a catch 17 Athat is c llocated at the lower portion of the frame l, whereby the lower end portion ofthe lever '16 is held away from the lower portion of the side of the frame 1;

"Vhen the machine is in operation the lower portion of the lever 16 is positioned away from the lower portion of the frame 1 as lastabove described, and therefore. the

upper ends of the plates 412 are'held out of, the paths of movement of the lugs 11.-

As 'the shaft 3 rotates the cranks 5 are carried around and the rollers 7 successively engage the lo\wer portions of the frames 8 and lift the same.' When the cranks 5 `assume'approxi'mately vertical positions' they pass from under the frames 8, whereby the said frames and their attachments are per- `mitted to fall and the heads lOtanip the Amaterial in the mold 2. During the time 'that the saidheads 1Q are operating uponv the material, more material may be supplied to the mold so that the tamping` operation may he continued during' the plaeing ot the 4 mold will preferably be so disposed beneath material in the meld and during the process ot' termine the article.

The vertically movable frames together with their ataehnients are ot. approximately the same ght and conse-fpiently the lamp ing o].ieration will be unilforni and the ma; terial in the mold will be conmressed to a unitori'n density, The sueressilje action ot the tamping heads will have a tendealey to i keep the material at or about the same level in the mold during' the talnpn'ur operation.

W'hen it is desired lo interruptr the tampine` operation without etopping` the 'rotation ot the shalt 3, the lower portion of the lever 16 disengaged from the outer end ot the catch t7 and the springs 115 Vtorce the upper ends ot the plates l2 toward the stops leland resiliently hold the upper or tree ends olf the said plates against the rods 9 when the parts are in the position as illustrated in Fig. -Conseqnently as the said lugs and the rods J to which they are attached are lifted above the upper edges of the plates l2, the said lugs will seat upon the upper edges otl the plates and the rods 9 and their attachments are prevented it'rom Atalling as the cranks 5 pass trom under the frames 8 as above described. This is done when the article inl the mold has been completed, so that the heads l() are held in ele,- va-ted positions, and the arlirle may be removed from the mold and the formation ot another article eontii'ined.

The frames are Composed ol side seetions which are spaced from each other and the said sections are rectangular in side elevation and tit snugly about the upper portion ol` the frame l. The rods are guided at the upper and lower portions of the Ytrame and consequently the upper portions ot' the said'rods and the lrames'S are so disposed about the upper portion of the trame 'l as to prevent the said trames 8 and the .rods from binding (hiringtheir reciprocatory movement with relation to the traine 1.

It will be observed `that the littii'iglrames ,S project forwardly above the grealer portion of the main trame, and the two trames are so relatively arranged that the lil'liirer trames are guided by the main 'trame and thereby aid in maintaining the tampers in a. vertical plane during their operation. The lifting frames project over the drive shaft which is arranged upon the main trame, so that the full lifting:r strength ot thevdrive shaft is utilized, and the tampers with the lifting frames to which they are secured nermitted to drop by gravity, so that the weight of the trames and the talnpers is utilized to pack the material in the mold.

t will be understood, ot course, that the the tanipers that the downward movement of the tampers will be arrested before the litting trames strike the driving,` shat't, and injury to said shattwill be thereby avoided. ll will, furthermore, be noted that the arresting plates or brakes by whirh the lamp ers are held in an elevated position are arranged between the tampers and extend up alongside the same. so that they do not project l'rom the main iframe or beyond the tampers, and therefore are not liable to be struek by objects which maybe brought near the app: 'atus, and injury to the said plates thereby prevented.

Havinp` thus described the invention what is claimed as new is:

l. A. tamping n'iaehine comprisingl an elevated rigid main trame having` upwardly and downwardly rxieuding portions, tampers guided vertically b v the upwardly andI downwardly extending` portions ol. the main trame, lifting trames secured to the upper i ends ol the tamp'ers and projecting above and below the upwardly extrnding portion ot the main Vtraine in front lhereot and slid ably engaging Ithe same, a driving shal'lv mounted on the main traine in advanre olE the upwardly extending portion ibereol', and lnoiei'liwus on said shalt adapted toengage the lower edp'es ol" the littine trames.

J. lamping;v machine comprising a supporting l'ralne, vertically movable lampers mounted in said l'rame, means l'or elleeling rerun-eration ol. tbe lampers, arrestingr plates mounted on the frame between the tampers and extending; upwardly alongside the same to engage andhold them in an elevaled posit ion, and yieldable means 'tor simultaneously moving,T all ol said plates into and out ot engagement with the tampers..

I, A lampine'machinecomprisingatrame, rods mounted l'or reeiprocatory movement in the trame, means for reeiprfmatingy the rods, lugs carried by said rods, plates hinged to the Ytrame between the rods, a rod passingr loosely through the plates, stops carried by the last mentioned. rod and bearing against the plates, springs interposed between the stops and the plates, and means for shitting the said rod.

ln testimony whereof l allix lny signature in presence ot two witnesses.

. CHARLES W. lile XDLEY.

lfVitnesses b'. D. l-rNiknn, LEONE Konn'rii.

a. Si

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