US462597A - sherman - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

W. D. SHERMAN.

SEWER PIPE AND DRAIN TILE MACHINE.

No.42,597. Patented Nov. 3, 1891.

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(No Model.)

W. D. SHERMAN. SEWBR'PIPE AND DRAIN TILE MACHINE. No. 462,597. Patented Nov. 3,1891.

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(No Model.) 3 Sheets-Sheet 3.

W. D. SHERMAN. sEWEE PIPE AND EEAIN TILE MACHINE.

No. 462,597. Patented Nov. 3,1891-' f1 A? of we "sums PETERS cn.. runny-urna., wAsHmoun, o. c.

UNITED STATES PATENT OEEicE.

IILIJIS D. SHERMAN, OF OMAIIA, NEBRASKA, ASSIGNOR TO TIIE UNION HYDRAULIC DRAIN TILE COMPANY, OF SAME PLACE.

SEWER-PIPE AND DRAIN-TILE MACHINE.

SPECIFICATION forming part of Letters Patent No. 462,597', dated November 3, 1891. Application filed December l1, 1890. Serial No. 374,357. (No model.)

To LZZ whom it may conceive:

Be it known that I, XVILLIS D. SHERMAN, a citizen of the United States, and a resident of Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Sewer-Pipe and Drain-Tile Machines and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it ap pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to certain improvements in sewer-pipe or drain-tile machines,

and is designed as an improvement upon the" invention disclosed in Letters Patent granted to me in September 3, 1889, No. alOA. In said Letters Patent the sewer-pipe or draintile, composed of concrete or ccmentor other material, is formed upon a revolving table by means of tai'nping-bars, which are connected with a vertically-movable drum or cylinder, the said taniping-bars being reciprocated Ver tically within a mold secured to said table, whereby the concrete or cement is compacted into a homogeneous mass.

The object of the present invention is to improve the construction of the drum or cylinder which carries the taniping-bars and the devices by which said tamping-bars are actuated. It is also the purpose to limprove the construction of the machine generally, whereby superior advantages are obtained with respect to simplicity of the parts composing the same and the niode or manner of operation.

1 designates the base of the machine, to which are bolted or otherwise secured the lower ends of two columns or supports 2 2, said columns being preferably hollow and provided at their lower ends with fianges, by means of which they can be better secured to the base. A table 3 is pivotally secured to the base centrally between the columns, so that the pipe as it is being formed within the shell 4 upon the table may be slowly revolved or rotated under the ends of the stampers or tampngbars of the taniping mechanism above the table, The outer portion of the table is supported upon rollers, which are journaled in suitable bearings in the base 1. To prevent the accumulation of sand or cement upon the base aud table as the machine is operated they are cut away in any suitable manner to permit the material to pass through them,but notin such a manner as to interfere with the formation of the pipe, all as set forth in Amy Letters Patent before referred to. i

The taniping mechanism, which moves up and down in guides upon the inner faces of the columns 2 i, consists of a frame composed of two yokes G t', bolted or otherwise secured to vertical extensions 7 of the drum or cylinder S, which carries vertically-reciprocating slide-bars il, to which the taniping-bars 10 are connected, said slidebars being provided with radial recesses 12 for the reception of the upper ends of said taniping-bars. The object of having a plurality of these slots in each slide-bar is that thc tampiug-bars may be shifted so to conform to varying diameters of molds,whereby different diameters of pipe may be made. These slide-bars Q work in vertical recesses 1l in said drum or cylinder. I have illustrated eight slide-bars as being employed; but it is obvious that the number may be varied without departing from the invention. Mounted in the upper part of the head or cylinder is a series of bevel gearwheels 15, corresponding in number with the slide-bars. These bevel gear-wheels consist ofthe cogged head 16, shaft 17, having peripheral ange 18, and crank-pins 19, prefer ably all cast of a single piece of steel, and they rest and Work in radial slots or grooves in said drum or cylinder and are held in place IOO by means of the radially-grooved plate 20, secured to the head and cylinder. The grooves in the said plate and drum correspond in shape with the shaft 17 and flange 18, so that when in proper position they will closely embrace the same, forming bearings therefor. Pivoted to the crank-pins 19 of said wheels are the rods 2l, the lower ends of which are pivoted to the slide-bars 9. Passingcentrally through the hub 22 of the drum or cylinder, Fig. 4,- is a rotating shaft 23, having at its lower end a collar 24, secured thereto by a setscrew 25. This shaft carries a crown-Wheel 26,which meshes with the bevel-gears l5, and is provided with a feather which Works in a vertical groove 27, Fig. 1, in said shaft, so that as the latter is rotated the crown-wheel is also rotated,- which in turn rotates the bevel-gears to actuate the crank-rods, slidebars, and Acamping-bars. This shaft passes through the cross plate or piece connecting the upper ends of the uprights and is pro-.

vided with a cog-wheel 28, meshing with a similar wheel 29,carried by the vertical shaft 29, (Shown in dotted lines, Fig. l.)

Connected with hooks 30 in the yokes 6 are chains 3'1, which pass over sheave-wheels 32 at the upper part of the machine to one of the uprights 2, where their free ends are secured to a bar 33, which carries a number of removable weights 34, which act as counterbalances to the drum or cylinder, and by means of which the pressure of the tampingbars can be regulated. A The numeral designates themain drivingshaft journaled in one of the uprights2 and provided with a driving-pulley 36. The lower end of the shaft 29a is provided with a pinion 37, which meshes with the cogged rim 38 of the revolving table 3, and also has a beveled gear 39 meshing with a similar gear 40 ou the driving-shaft 35. rPhe inner end of said driving-shaft is provided with a spur-wheel 4l, which engages with a cog-wheel-42 upon a short shaft 43,which is journaled in bearings at the side of the column. Aclutch-wheel 44 is secured upon the shaft by means of a pin, so that it can be moved back and forth between two bevel-wheels 46 and 46, which are loosely secured upon the shaft and which engage with another bevel-wheel 47 upon the lower end of a rod or shaft 48, which is journaled in bearings in the side of the column. A bell-crank lever 49 is pivotallysecu red to the side of the column above the clutch, having one of its ends or arms slotted and passed down over the end of a handle pivoted in are engaged bythe tamping mechanism as it is moved up and down. The clutch mechanism and its lever mechanism just described are similar to those shown in my patent previously referred to and are not claimed herein.

The upper end of shaft 48 is provided with a short worm or spiral gear 53, which engages with a worm-shaft 54, journaled in the side of the column and which carries a sprocketwheel 55, connected by means of a sprocketchain 56 with a loose sprocket- 57 on the transverse shaft 58, journaled in bearings 59 in the upper end of the columns 2 2. The sprocket 57 is loose on shaft 58, and at one side thereof is a collar 58 and on the other a friction-disk 60, which is keyed on said shaft. The end of the shaft is provided with a sliding collar 6l and a screw-nut 62, and intermediate of the collar and disk is a coiled spring 63, for a purpose hereinafter explained.

Secured to the shaft 58 are two sprocketwheels 64, which are connected with sprocket- Wheels 65, journaled in the lower ends of the uprights 2 2 by means of sprocket-chains 65a. Each sprocket-chain is secured at one side to a vertically-movable cross-head 66, having slides 67 Working in guides in the uprights 2 2. This crosshead is adapted to be connected with this core of the mold, so that as said cross-head is elevated the core will also .be elevated and removed from the mold.

Pivoted to the lower part of the Jrampingframe are bent pawls 68, Fig. 4, the lower endsof which are formed into hooks 69, While the upper ends 70 extend outwardly. Secured to the inner sides of the columns 2 2 are adjustable stops 7l and 72, Fig. 4, with which the ends 70 of said pawis are adapted to engage to throw the hooked ends thereof into and out of engagement with studs 73 on the slides 67 of the cross-head 66.

The operation is as follows: The mold heing placed in proper position on the revolving table, the driving shaft and pulley are actuated from any suitable motor, causing the shaft 29a to be rotated,'which will rotate said table and also the shaft 23, journaled in the drum or cylinder 8. This will cause the crown-wheel 26 to be rotated, which in turn will rotate the gear-wheels l5 and actuate the crank-rods 21'. The slide-bars and tampingbars connected with said crank-rods will consequently be reciprocated to compact and compress the concrete or other material of which the pipe is to be ycomposed which is being fed to the mold. As the pipe is formed by the accumulation of material under the ends of the camping-bars, the entire tamping mechanism is gradually moved or lifted upward, the slides of the yokesmoving Within the guides upon the inner faces of the columns. When the pipe is completed, the frame is elevated to near the top of the machine. The operator now throws this clutch-wheel 44 into engagement with one ofl the clutch bevelwheels 45 or 46 and sets the shaft 58 and IOC IIO

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sprocket-wheels 64 in motion through the medium of shaft 4S, worm 53, shaft 54, sprocket- Wheels 55 and 57, and sprocket-chain 5G, by which the cross-piece 66 is elevated and with it the core is withdrawn from the completed pipe. Then the cross-head reaches the bottom of the tamping mechanism, it carries it along up with it until the top of the frame engages Ywith the upper stop or lever 52, and through it moves the rod 5l down, which throws the wheel out of engagement with the clutch bevel-wheel by means of the bell-crank lever. At the same time the ends of the pawls 68 will strike thelugs or stops 7l, which will cause their hooked ends 69 to be en gaged with the studs 7 3 on the cross-head, so that the latter will be connected with the drum or cylinder. The shell and completed pipe are now removed from the table andan empty shell placed instead, when the core is again let down by the operator actuating the clutch-wheel, so as to bring it in engagement with the opposite bevel-wheel, which will reverse the movement of the sprocketchains 65:. The tamping mechanism, being connected with the cross-head by the pawls 68 and studs 7 3, will be elevated with said crosshead until the lower end of the tamping mechanism strikes the lower lever 53, throwing the clutch-wheel out of mesh with `the bevel-gear and stopping further downward movement of the cross-head. At the same time the ends 68 of the pawls will strike the stops 72, which will disengage the pawls from the studs 73, thus allowing the tamping mechanism to rise independently of the cross-head when another pipe or tile is being formed in the mold, as before set forth.

The object of the loose sprocket 57 and friction-disk is to prevent any breakage of the machine in case of disarrangement of the cross-head, as by means of the coiled spring and screw-nut 62 the friction-disk 60 may be made to bear against the sprocket 57 with just suliicient force to raise the cross-head and its connections, so that iffrom any cause the cross-head should bind or become stuck in the ways in the columns the friction between said disk and sprocket would be overcome and the latter would turn on the shaft 5S.

Having thus described my invention, what I claim is- 1. In a sewer-pipe and drain-tile machine, the combination, with the revolving table and a vertically-movable cross-head, of a vertically-movable drum or cylinder having a central shaft, a crown-wheel carried by said shaft, a series of bevel-wheels journaled in said drum or cylinder, crank-rods pivoted to said bevel-wheels and to sliding vertical bars carried by said drum or cylinder, and the tamplsubstantially as described.

2. In a sewer-pipe and drain-tile machine, the combination, with the revolving table and a vertically-movable cross-head, of a vertically-movable drum or cylinder having a central shaft, acrown-wheel carried bysaid shaft, a series of bevel-wheels j ournaled in said drum or cylinder, and crank-rods pivoted to said bevel-wheels and to sliding vertical bars carried by said drum or cylinder and provided at their lower ends with radial recesses to receive the ends of tamping-bars, substantially as described.

3. In a sewer-pipe and drain-tile machine, the combination,with the vertically-movable cylinder, the sliding bars` the tamping-bars, and the crank-rods, of the central rotating shaft, the crown-wheel carried thereby, the bevelwheels having inwardly extending stems provided with circumferential anges adapted to iit in corresponding radial grooves in the drum or cylinder, and the securingplate having radial grooves adapted to fit over said stem and flanges, substantially as described.

4. In a sewer-pipe and drain-tile machine, the combination, with a vertically-movable drum or cylinder provided with tamping mechanism and the vertically-movable crosshead, of a transverse bar journaled in the upper part of the machine, having sprocketwheels thereon, sprocket-wheels in the lower part of the machine connected therewith by sprocket-chains, which are secured to the cross-head, the loose sprocket in said shaft, the friction-disk keyed on said shaft, the coiled spring and binding-nut, a sprocketchain passing over said loose sprocket-wheel, and means for actuating the same, substantially as described.

5. In a sewer-pipe and drain-tile machine, the combination, with a vertically-movable drum or cylinder provided with tamping mechanism and having pivoted pawls with hooked lower ends and outwardly-projecting upper ends, of the vertically-movable crosshead having studs thereon, and the stops secured to the columns of the machine, adapted to strike the upper ends of said pawls to en* gage the hooked ends thereof withsaid studs and to disengage them therefrom, substantially as described. g

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

VILLIS D. SHERMAN.

Witnesses:

Jos. L. CooMBs, BENNETT S. JONES.

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