US1576127A

US1576127A - Pipe-forming machine

Info

Publication number: US1576127A
Authority: US
Publication date: 1926-03-09
Anticipated expiration: 1943-03-09

Description

March 9,1926.

W. c. AUSTIN PIPE FORMING MACHINE Filed April 24' 1925 4 sheets-Sheet W- C- Aus-r March 9 1926. 1,576,127

- W. C. AUSTIN a PIPE FRMING MACHINE Filed Aprl 24, 1925 4 Sheets-Sheet 2 aktozneq March 9 1926.

. w. c. AUsT|N PHE FORMING MACHINE Filed April 24, 1925 4 sheets-snaai 5 gmxmrof W C. AUSTIN, WM

March 9,1926. I 1,576,127

W. C. AUSTIN PIPE FORMI NG MACHI NE Filed April 24, 1925 4 sheets-Sheet 4 nvcnto/v M FIG-7 W CLAUSTIN,

@Het we Patented Mar. 9, 1926.

UNITED STATES WILLIAM C. AUSTIN, OF ANDERSON, SOUTH CAROLINA.

PIPE-FORMING MACHINE.

Application ined April 24, i925.

.Be it known that l, Tillmann C. AUs'riN, a citizen ot the Vnited States, residing at Anderson, in the county ot' linderson and State of South Carolina, have invented certain new and use ful Improvements in Pipe- Forming Machines, of which the Yfollowing is a specilication.

)ly invention relates to a machine t'or loru1in pipes with bell ends, which may be used as sewer pipes, or tor other purposes, and which are t'ormod ot concrete, or other plastic material.

An important object olf the invention is to provide means tor suitably packing or condensing the bell end ot' the pipe, without employing two movable or rotary tormers, whereby a simplified machine is produced.

A further object ot' the'invention is to improve the construction ot the rotary former, which produces the body .portion ot the'pipe, tor obtaining, lirst a rolling or lineading action upon the plastic material and subsequently a smoothing action.

)i further object of the invention is to provide means to lock the pallet within the bell end ot the mold, whereby it is removed trom the machine with the mold, upon the completion ot the pipe. Y

A `further object ot the invention is to provide the pallet with groove cutting means` whereby grooves may be formed upon the interior ot the bell end of the pipe, which operation voccurs after the pipe is completed, and removed t'rom the machine.

.le further object ot' the invention is to provide a machine ot' the character described, which is ot simplitied construction, strong and durable.

Other objects and advantages otl the invention will be apparent during the course ot the following description.

In the accompanying drawings forming a part ot' this specilication and in which like nun'ierals are employed to designate like parts throughout the same,

Figure l is a side lele/'ation ot a pipe 'forming machine embodying my invention, Figure 2 is an end elevation of the same,

Figure 3 is a horizontal section taken on line 3 3 of Figure l, n

Figure il is a horizontal section taken on line. e--l of Figure 7,

Figure 5 is a similar view taken on line serial No. 25,846.

5--5 of Figure T, with the cam levers folded, and looking downwardly,

Figure (3 is a similar view taken on line 5 5 ot Figure T, with the cam levers opened, and looking upwardly,

Figure T is a central vertical sectional view through the mold, and associated elements, parts broken away, and parts in elevation, and,

Figure 8 is a fragmentary vertical section through the lower end ot the mold and associated elements.

T he machine embodies a frame work, including base beams 10, such as I-beams, upon which upwardly converging standards 'll are rigidly secured. These standards are rigidly connected at their tops by transverse beams l2, and also by longitudinal beams lf3.

Disposed upon the tori'ard end of the beams l() is a floor 14, rigidly attached thereto, by any suitable means. This lloor supports a table l5. This table is held stationary upon the floor by any suitablel means. The table embodies a raised cylindrical portion 1G, having a tlat hori'fzont-al top 1T. The table also carries a marginal flange 1S. The table 'l5 is provided upon its periphery, and adjacent to its top with an annular groove 19, affording a tlat horizontal tace 20, and an inclined 'face or wall 2].. Beneath the tlat horizontal face 20, the table has an annular groove 22, for the reception ot spring bolts, to be described.

'lhe numeral 23 designates a mold, provided at its bottom with a bell end 24. This mold is preferably formed in two parts, which are detachably secured together by any suitable means. 'f For the purpose oi illustration I have shown the mold sections provided with apertured ears 25, connected by bolts 2G while any other suitable means may be employed for this purpose. The mold 23 is vertically arranged in use, and its bell end is provided at its bottoni with a reinforcing guide flange 27. This guide tiange is adapted to slidably receive the raised cylindrical portion 16 of the table. When the mold s3 is in the raised position, prior to the packing or condensing of the bell end of the pipe, the guide flange 27 fits or slidably engages about the flange of a pallet, to be described. The flange 27 is adapted to rest upon and be supported by yielding means, embodying a ring Q8, rest- .i end, with `rios ingnpon and attached to suitably stili' coinpressible coil springs 29, the lower ends cil. which are-held Within sockets gli), iforined upon the horizontal flange 18 ot the table. The springs 2S) are adapted to support the inold in this elevated position, but the niold inay be shifted longituiflinally or (ilcpresseil, in opposition to these springs, as will be described. t is obviousthat other toi-ius ot yieldiiig means may be einployed to support the inold to perinit ot its longitudinal shitting* or packing action.. The inold is provided upon its inner surlface, adfacent to upper 3l., which `are ad aptcd to 'torni zgrooves upon the exterior oi the sinall cud ot the pipe. l

Adapted to be arranged upon the upper end ol the mold 23 is a ring' or holding ineinber 32, liaviiia` a depending annulaitlange 33, receiving the upper end ot' the niold. rl`he concrete or other plastic material lied through the 'inn' 32 into the. upper end 'ot the inoldrby any suitable uieane. ',l`he holdin;l inemberor ringv l is provided at `dia inetricallyv opposite points with blocks 34, rigidly secured thereto. and these yblocks are adapted to engage beneath compression earns 35, pivoted between vertical arius or brackets 3(3,rattaclied to a horizontal transverse beain '37, in turn attached to the vtrent standards 1T'. The earns B5, ivhiehare ec"r centrically pivoted, are adapted Vto be turned upon there pivots by means oi a bail 8S. lt inipjht be stated at this point, that after the inold 2% is positioned in place upoiitl e table.'

the cains may he Vturned downwardly slightly, whereby the mold securely held in the raised position. Further (floivnwardly tur.n ing movement ot' the :anis will eil'ect a turther downward inoveinent of the inold. as is obvious. The holding nieii'iber or ring: 32 is provided at diaii'ietrically disposed points with apertured radially extending' ears receiving' vcrti al rodsI l0. which are adapted to slide vertically `through stationary guides il and All` carried by the traine.

r langjcd upon the cylindri al raised portion 1G ol the table is a tapered lor truste` conical pallet l2, decreasing;A in diameter iipivardly. This pallet provided at its top with an inwardly projecting horizontal annular` tlaiigje itl. and at its-lwttoin with an outwardly iinfojectingr annular flange fl-l. rlhe flange all is adapted 'tor insertion ivithinthe `e'ifoove'l 9. to be held therein. The, periphery of the flange l-l does not iuoicct be* yond .the peripheii'jv ot the cylindrical `raised portion 1G ot' thetable. and ythis flange adapted to pass into the bell end il ottlie inold. Vlfliepallet isstationary in ope 'ation` upon the inachine. nor does it function to support the inold.` which must. be tree to inove Longitudinally `with relation ,the feto.

The pallet is lprovided upon its periphery, see more particularly Figures 4:15?

and G, with eircuniterentially extending horizontal pairs of slots traktor receiving` curved groove cuttersA-(E, *which arepreijenbly the .levers 5() aresivung outwardly, as shown in Tifigure 6, they shiitt the groove cutters -l-.o oi'itiardly, and the cani heads all) contact with the interior ot the pallet. thus limiting' the further inovenient ot the levers in the saine direction. llfhen swung' to the outer positions, these levers may be eiiiplo \,'ed to turn the pallet whereby thevp'roove cutter.; will produce the `grooves upon the interior ot the bell end of the pipe. lt should be stated that he ijialletreinaiiis stationary dui ingits presence upon the machine, but when the pipe has been completed.' upon the inacliine, the mold 2 removed troni the niachineand placed upon a suitable support, at' `which tiine the pallet is turned by means olt the levers toproduce the grooves as de scribed.

rlfhe bell end 24: of the niold carries spring bolts 52, attached thereto at 5?, and these spring bolts have heads 53', projectingl radi ally vinwardly through ipenings in the bell end and intothe annular groove Q9 in the elevated portion of the table. The inner ends ot these heads 53 are beveled. as shown at 1t is therefore seen that when the niold 4is depressed to the lowerinost position. that the heads 59)". Will ride over the flange Lla'- of the palleuand then spring inv'ardly and engage Abeneath it, thereby holding' or locking` the pallet in, the bell end-,ot'lhe niold, so that it cannot niove downwardly. out ot the saine. 'lhese bolts niay be equipped with handles 5i'. by nieans ot' which they inay be inoved outwardly. to .release the pallet, aiter theinold is removed troni the machineT and it is desired to i'eniove theV pallet trein the saine.

The n'iachine `further einboilies a rotary iiorii'ier including1 a cyliudrial snuiotliing druni 59. which isrigidly mounted up on a vertiea drive shart G0. Thie drive shaft is slidably inoiinted Within a bearing? 61. rigidly attached to the bcain and ivithin a bearing (l2. rigidly a taclied to the beain lil. The drum 59 has its head il?) provided vvitli pivot elements or bolts (il. pass ingthrough openings therein. and throuejh openings in a cross head g .alfl'o preferably rigidly mounted upon the .driveshatt .60.

vDisposed between the bead 63 and cross bead lill are rotary rollers G6, pivoted upon the elements Get. These rollers have their peripheries preferably substantially `flush with the periphery oit the smoothing drum 5E). 7While the former bodily rotating the rollers (SG rotate upon their axes. and exert a rolling or kneading action upon the concrete or other plastic material. As the smoothing drum follows these rollers, it will exert a smoothing action upon the concrete previously treated b v the rollers. The 'Former is preferably provided with a lfiller (36. arranged between the parts (S3 and (S5, and attached thereto.

The drive shaft (it) is rotated by means of a pulley 6T, mounted upon the upper end ot the drive shaft, and splined thereon. so that it will rotate the shaft, but will permit ot the longitudinal movement oit the shaft. The pulley is held against vertical displacement by the bearings G2 and (32, as shown. rlhe pulley is driven by a belt (ST, engaging a pulley (3S, carried by a transverse sha'tt (39, journaled in bearings TO, which are attached to the upper beams 13. This belt passes downwardly and engages a pulley 7l, rigidly mounted upon a sha'tt T2, journaled in a bearing 73. The sha't't 'T2 is driven by a motor 74 or other source ot' power.

The drive shaft 60 and the rotary former carried thereby will be lowered by gravity, and the same may be raised by a cross head T5, having a hub 76, slidably receiving the shatt 50. A collar TT is clamped to the shaft 60 by a bolt 7S or the like, and is disposed above the hub 7F, to engage therewith. The cross head T5 has connection with cables 79, passed about grooved pulleys S0, secured to the upper portion of the trame and about grooved pulleys 8l, secured to the beams 153. These cables are attached to and wound upon drums S2, which are rigidly mounted upon the transverse sha'tt S8, liournaled in stationary bearings 84:. One drum S2 is equipped with a beveled gear 85, rigidly attached thereto, and this beveled gear engages a beveled gear S6, carried by the shat't 8T. journaled in a bearing SS. rl`hc shaft ST is disposed in end to end relation to the shatt 72. and is adapted to be connected therewith b v .means ot a il'riction clutch S9. which may be thrown out ot ac-v tion by a suitable lever 90. It is preferred to drive the winding drums by power but they may be manually operated. it desired.

The cross head is adapted to engage with stops 91, which may be clamped upon the vertical rods 40, at selected elevations. When the cross head engages beneath the stops 91, the rods l0 will carry the holdjing ring 32 upwardly, causingv the, same to disengage the mold. rhe purpose ot providing the friction clutch S9 is to prevent breakage ot parts 0f ythe machine, should the rods -lO be shifted to the uppermost position, while the shaft Si' is still being driven.

The operation ot' the machine is as follows:

The mold Q3 is placed in position with its bell end resting upon the `vielding means, embodying the ring` QS and 'springs 29, and such bell end receives the l'lange -l--Lt ot the pallet and the upper end of the elevated cylindrical portion 1K3 of the table. The mold may be retained in this elevated position by swinging the cams 35 downwardly slightly. The rotary former 5S is now in the lowermost position and the smoothing drum embodied therein is disposed within the pallet'. This former may be rotating. The concrete is now poured into the upper end ol the mold 2?. through the holding ring` 32 and will oit course pass into the bell end Q4: oit the mold. lVhen sullicient. concrete has been fed into the mold to lill the bell end of the mold and term the bell end ot the pipe. the mold 23 is depressed, which is accon'iplish'ed by swinging the bail 88 downwardly, to turn the cams 35 downwardly. This bail may be manually moved. or antomatically 'shi'ltcd by a movable part ot the machine. The mold is therefore given a con'ipressing or packing operation or movement. This movement may consist of a continuous dowi'iward movement, or a number ot reciprocatory movements. The mold 23 is finally moved downwardly to the lowermost position, which will occur when the heads 53 ot the bolts engage beneath the flange eli ot the pallet. In this manner the concrete between the bell end oit the mold and the pallet will be condensed or compressed. Further concrete is now poured into the mold, andthe former 5S is continuously rotated, while it is gradually elevated, for forming the body oit' t-hc pip-e. While the tormer is bodily rotating, the rollers 66 turn treely upon their axes, and they prolduce a rolling or kneading action upon the concrete, which followed by the smoothing action o'lE the rot-ating smoothing drum 59. lVhen t-he pipe is completed, the bail i8 is 'shi'lted upwardly so that its cams release the holding ring 32. and subsequently lo this. the continuous rise oit the ross head To. brings the same into contact with the stops 9i, whereby the rods ett) are elevated in turn elevating the holding ring and et'ecting a disengagement between it and the top ot the mold. The pallet 4t2 being locked within the bell end ot the .mold 2l-. is removed trom the machine with the mold, so that the mold and pallet may be positioned upon the table o't the machine to form another pipe. This removed mold with the finished pipe is suitably supported, and the levers 50 swung outwardly, Figure 6, and may be employed to rotate the pallet within the bell end 0f the pipe, causing the expanded `groove cutters liti to form the `srrooves upon the inner surfaces ot the bell end ot the pipe. titer this, the levers 50 re swung inu'ardly and the groove cutters automatically retract so that the pallet may be moved -from or vvithin thebell end of the pipe.V rlhe mold 223 is o'l" course 'separated into halves and` removed from the pipe, which is allowed to set and harden.

lt is to be understood that the form ot my invention herewith shown and described is to bo talien as a preferred example ot the saaie, and that various changes in the shape, size, and arrangement ot parts may be resorted to Without departing' :trom the spirit ot' my invent-ion or scope ot the 'subjoined claims.

Having' thus described my invention, I claim:

l. In a pipe l'nminp,"` machine, a mold having a bell end, a pallet held stationary in the bell end, means for effecting a packingyoperation ot the mold with relation to the pallet, andv a l'oriner operating,l within the mold to complete the body ot the pipe.

2. ln a pipe forming,` machine, a mold having' hell end, a pallet held stationary in the bell end, means for effecting' a lengt tudinal movement olf the mold with respect to the pallet, and a former for operation in the `mold to complete the body oi the pipe.

3. ln a pipe forming machine, a mold having); a bell end, a pallet arranged near the bell end, means tov move the mold longitudinally to #ard the pallet, and a former tor operation in the mold to complete the body of the pipe.

4. In al pipe forming' machine, a mold having a bell end, a pallet Within the bell end, means for eliecting a longitudinal moif'einent of tho mold, a rotary 'former for operation Within the mold, and means to move the itormer longitudinally of the mold.

In a pipe forming;- machine, a. mold having' a bell end, a. relatively stationary pallet adapted for receiving the bell end about the same, yielding- .means for supportingthe mold, means for moving' the mold longitudinally in opposition to the yielding n'reans, a rotary former lfor operation Within the mold, and means to move the rotary vlnmer an'ay from the pallet.

6. ln a pipe forming machine, a support, a pallet held relatively stationary by the support, an upstanding,- mold mounted upon the support and arranged above the pallet and having a bell end, means to depress the mold,

a rotary former for operation Within the mold, and means to move the rotary "former upwardly away from the pallet,

ln a pipe 'forming maelnne,.a support,

a pallet upon the support, an npstanda'ng` mold having a bell end, supporting means between the mold and support and adapted to permit of the downward movement of the engaging `the upper end off the mold, means to engage the holding,` rinv and to depress the same and hold the same depressed, a rotary former to operate within the mold, and means automatically operated upon the upward movement oli' the tor-mer to elevate the holdingring.

8. ln a pipe. forming machine, a support, yieldingmeans-arranged near thesupport, a mold having a bell end supported by the lyielding` .ineans, means tor depressing' the mold, a pallet carried by the support to cooperate with said bell end, and a rotary former for operation Within the mold to producethe body portion oiC the pipe.

9. In a pipe` forming machine, a longitudinally n'iovable mold having a bell end, a pallet adapted to enter said bell end, means ior holding;` the pallet relatively stationary, means :tor supporting the mold in place so that it may more longitudinally toward the relatively stationary pallet, and a former ,peratinfr within the mold tor producing,` thebody portion ot the pipe.

10. ln a pipe l'orniing machine, an elevated table portion, a pallet mounted upon the elevated table portion, a mold haviiml a bell end adapted to be moved dowmvardly about the ele fated table portion, means for eftecting` the longitudinal movement ot the mold, means to lock the pallet to the mold, and a former operating Within the mold to produce. the body portion el; the pipe.

1l. In a pipe toi-ming machine, a table, a pallet mounted upon the table, said pallet and table liaviingr interlitting'` parts, said pallet having a radially extendingl flange, a mold having a bell end lwhich is adapted to receive the flange ot the pallet` means tor srupporting` the mold and to eli'eet its longitudinal movement, catch means carried by the mold to engage beneath the itlangge ot the pallet when said mold is shifted longritudinally in one direction sulliciently, and a rotary former operating;v Within the mold to produce the body portion of the pipo.

l2. ln a pipe :Forming machine, an elevated table portion provided with a circunn -terential groove, an annular palletprovided near its lower end vvi'th a radial llaure to be seated Within said `groove` a mold havimgy a bell end to receive the palletand elevated table portion, spring catches carried by the mold and anapted to be automatically en- ,Qaged beneath the flange ot the pallet, means tor supporting'tlie n'iold and. of; Vingits doivnnf'ard movement, and a rotary 'former operating Within the mold to produce the body portion ot the pipe. said former having a part thereof adapted to telescope ivith the annular pallet.

i3. In a pipe forming; machine, a pallet mold, a holding ring held stationary in use, a longitudinal f' movable mold having a bell end recel 'ing all parts ol the pallet Within its bore, the 'bell llt? all

end of the mold co-acting with the stationary pallet to condense the bell end ot' the pipe being tormed upon the longitudinal movement ot said mold. and a rotary 'former within the mold lor producing the body portion ot' the pipe, said rotary former having a part to telescope with the pallet.

1l. ln a pipe forming machine, a mold having a bell end, means for holding the mold in position, a member within the bell end 't'or eo-action therewith, and a rotary former to operate within the mold to pro duce the body portion of the pipe, said rotary former embodying a trailing smoothing drum and rollers disposed in advance ot'd the drum, said rollers rotating bodily with the drum and also turning on their axes with relation to the drum.

l5. A rotary former for a pipe making machine, comprising a rotatable smoothing drum, and rollers arranged in advance ot the drum and connected therewith, said rollers rotating bodily with the drum and also turning upon their axes with respect to the drum.

1G. A rotary former tor a pipe making machine, comprising a rotatable smoothing drum, rollers connected with the leading end oit the drum and adapted to bodily rotate therewith and turn with relation thereto, said rollers having their peripheries substantially flush with the periphery ot the smoothing drum.

17. A rotary former for a pipe making machine, comprising a former head, rollers connected with the former head to bodily rotate therewith and turn upon their axes with relation thereto, and a smoothing drum connected with the former head to rotate bodily therewith.

1S. ln a pipe forming machine, a mold having a bell end, a pallet to be received within said bell end, groove forming means carried by the pallet to produce grooves upon the interior oit' the bell end ot the pipe, approximately oppositely arranged handles to project the groove 'forming means and also serving to remove the pallet, and a former operating within the mold to produce the body portion of the pipe.

19. In a pipe forming machine, a mold having a bell end, a pallet held within such bell end, groove forming means carried by the pallet, l'oldable means to operate the groove forming means, and a rotary former to operate within the mold, said rotary tormcr including a portion telescoping within said pallet, said oldable means permitting such telescoping action.

E20. ln a pipe forming machine, a mold having a bell end, a member supported within the bell end and havingl a groove or grooves, an outwardly movable groove cutting element or elements carried by the member and operating within the groove or grooves, means to shift the groove cutting element or elements outwardly, and a rotary toriner operating within the mold, said rotary former embodying a smoothing drum and rollers connected therewith, said rollers rotating bodily with the drinn and turning upon their axes with relation thereto.

21. ln a pipe torn'iing machine, a mol-l having a bell end, a pallet to enter the bell end, nonrotatable means carrying and snpporting the pallet, means for etlecting a relative longitudinal movement between the mold and the pallet for condensing the material in the bell end, and a 'toi-incr operating within the mold to complete the body ot' the pipe.

22. ln a pipe forming machine, a mold having a bell end, a nonrotating pallet within the bell end, means tor ellecting a relative longitudinal movement between the mold and the pallet tor condensing the inaterial in the bell end, and a :tormer i'or operation in the mold to complete the body o'tl the pipe.

9.3. In a pipe forming machine, a mold having a bell end, a nonrotating pallet within the bell end, means 'for effecting a relative longitudinal movement between the mold and pallet, means tor locking the pallet. to the mold upon such relatively longitudinal movement, and a former tor operation in the mold to complete the body of the pipe.

In testimony whereot' I al'lix my signature.

lVILLIAliI C. AUSTIN.

il S