US929898A - Glazed-cement-sewer-pipe machine. - Google Patents

Description

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4- SHE Fatented Aug. 3, 1909.

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APPLICATION FILED NOV. 17,'1

AZED CEMENT SEWER IIPE MACHINE.

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J. THOMAS. GLAZED CEMENT SEWER. PIPE MACHINE.

APPLICATION FILEDQNOV. 17, 190B.

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Patented Aug. 3

4 SHEBTS- J. THOMAS. GLAZBD CEMENT SEWER PIPE MACHINE.

APPLICATION FILED NOV. 17, 1908. 5329.898.

J. THUMASE GLAZBD CEMENT SEWER PIPE MAGHNE.

APPLCATION FILED NOV. 17, 1908.

Patented Aug. 3, 1909.

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ofl the core-carrying shaft 14 and serves to Y by the stub shaft 43, and the sprocket wheel center said core-carrying shaft on the adjacent revolving table.

Loosely mounted on the shaft 14 is a core member 28, the latter being preferably formed of sheet metal and having its adjacent longitudinal edges over-lapped at 29, thereby to permit expansion and contraction of the core. the core are aseri'es of arms or spiders 30, each terminating in a segmental plate 31 adapted to bear against a conical shaped bearing sleeve 32, loosely mounted on the shaft 14. The conical shaped bearing sleeves 32 are retained in position on the shaft 14 by means of spaced collars 33, the lower one of each/of which, by engagement with the adjacent segmental plates 31 serve to'withdraw the core 28 from within the mold when an upward pull is exerted on the shaft 14, as will be more fully explained 'hereinafter'. The core 28 rotates with the mold 23 on the table 17, while the shaft 14 remains relatively stationary, the sleeves 32 forming a bearing for the arms of the mold duringl the rotation of the table. It will thus be seen that when a. slight upward movement is imparted to the shaft 14, the Iinclined faces of the bearing sleeves 32 will engage the correspondingly inclined faces of the segmental plates 3l and thus permit the core to contract so that the same may be disengaged from theinterior wall of the pipe. 1t will also be noted that when a downward movement is imparted to the shaft 14, the inclined faces of the sleeves will exert a lateral pressure on the segmental plates 31 and thus expand the core soas to hold the same in frictional Contact with the interior wall of the pipe. The intermediate portion of the shaft 14 is threaded at 34, while the upper end thereof extends through the bearings 13 and is provided with a ring or eye to which is attached one end of a cord or cable 3G, the latter being extended over the wheels or pulleys 11 and provided with a weight 37 which forms a counterbalance for the core and itsassociated parts.

Journaled in a bearing 38 secured to one of the transverse bars l2 of the auxiliary supporting frame is a sleeve 39, the interior walls of which are threaded for engagement with the threads on the shaft 14, one end of said sleeve being provided with a handwhcel 40, while the opposite end thereof is formed with a beveled gear 41 meshing with a corresponding bevel gear 42 carried by a stub shaft 43, the latter being mounted in suitable bearings 44 on the main supporting frame, as shown. Arranged beneath the stub shaft 43 is a main driving shaft 45 carrying a gear wheel 4G and a sprocket wheel 47, the gear wheel 4G being arranged to engage a correspon-dingwgear-wheel 48 carried Secured to the interior walls of -lT being connected through the medium of a lsprocket chain with a similar sprocket wheel 49 also mounted on the'stubvshaft 43.

T he gear wheel 48 and the sprocket wheel 49 are loosely mounted on the stub shaft 43 and are keyed to the latter by means of a clutch 50 so that by actuating the operating handle 51 motion may be transmitted from either the member 46 or the member 47 to the shaft 43 and thus rotate the latter to raiseor lower the core member.

Mounted on the main' supporting frame is a motor 52 on the d'rivingshaft of which is secured a pinion 53, the latter being adapted to mesh with a master gear 54 keyed to the main shaft 45. Journaled in suitable hearings on the -main supporting frame is a` longitudinally disposed shaft 56, to one end of which is secured a pinion 57, which latter is arranged to successively engage the racks 22 on the tables 17, thereby to rotate the same. main shaft 45 to the shaft 5G through the medium of a sprocket chain 58, said chain passing over a. sprocket wheel 59 keyed to the shaft 5G and also over a similar sprocket wheel (30 loosely mounted on the shaft 45. A clutch (S1 is mounted on the shaft 45 for keying the sprocket wheel GO to said shaft Awhen it is desired to impart movement from the shaft 45 to the shaft 56. The pinion 57 is slidably mounted on the adjacent end of he shaft 56 and is moved to operative posi- Linn in engagement with the rack on the adjacent table 17 through the medium of a lever 2 pivotally mounted at 63* on one of thesills of the main frame. A hand-lever 64 Motion is transmitted from thtv is also pivotally mounted at 65 on the adja- I cent upright of the main supporting frame with its lower end pivotally connected to the lover (32 .so that by moving the handle 64 in one direction, the pinion 57 will be moved into engagement with the teeth on the adja- .-e1it table to rotate the latter, and by moving the lever (34 in the opposite direction, the pinion 57 will be thrown out of gear with thc rack 22 so as to permit the removal of the mold and the molded product.

Mounted on the main supporting frame at the rear of the track 15 is the mechanism employed for tan'iping the material in the mold, as the latter rotates with the table 17.v

zontally disposed Aframe comprising spaced bars 'G9 having their intermediate portions bolted or otherwise rigidlyY secured tothe upright GG and their opposite ends brought Extending between the vertical. uprights (3G of the tamping frame is a horitogether and rigidly united, as indicated at 7G. Disposed between and rigidly secured to the horizontal hars (39 at the 'forward end of the tamping traine is a yoke member il having' vertically alined openings TQ torined therein 'for the reception of a vertically mov able raek or tampingr member i2-l, the latter being provided with a terminal head "T4 adapted to enter the molding' eompartn'ient' and tamp the material in said molding oompartinent as the mold revolves.

rThe lmrizontal trame ot the tamping mechanism is reintoreed and strengthened by the provision ot upper inelined tie bars and Tt?, one ot which entends from an in-y clined perforated ear on the eap pieoe 68 to the yolte'l, while the other tie rod eX- tende from a similar inelined perforated ear on said cap piece to the rear ends ot' the bars (59 at their point ot attachment to each other. A tie rod 77 also preferably extends trom the rear ends ot the bars (S to the'4 mudar member or rin-gr '67, While another tie har To extends 'from the lower portion ot the yoke 7l to a transverse bar or bracket 79 connecting the uprights (36 ot the tamping.; trame. Pivotally mounted at 79 between the l'iorizontal bars 69 ot the tamping' trame is a Striking' bar tl() having its intermtuliate portion pirotally eonneeted at ttl with a pitman 82 earried by a oranti shaft 82%. The crank shat't S3 journaled in a bearing' Sel and has its opposite ends extended laterally beyond the vertieal plane of the members (3(3 to permit. the attaetnnent ot a balanee Wheel H3 and a pulley 86.

Motion is transmitted from the longitudinal Shaft 56 to the Crank sha'tt S?) through the medium ot a belt 8T, which latter passesaroulid a pulley SS on the shaft 5G tor eng'agementy with the pulley 86, there beine' a siinilarpulley tl'jonrnaled on the bracket 79 for engagement with the intermediate portion olf the belt, The pulley 'F39 not only 'torms a `:guide for the belt ST but also aets as a belt tile'htener` said pulley heine' adjustable longitudinally et' the brat-liet Til tor this purpose.

hiet-,tired to the striking bar SO at a point in advance ot the pivot 8l is a hanger llt) having its upper end reduced and provided with a hook 9i t'or erig'agement with the adjarent end ot a (foiled spring' @Qf the opposite end ot n'liirh fastened to one ot' the transverse bars 9,3 eonneetine' the uprights ot the tuinpamer as shown. "lhe spring' Q2 serves to assist in sustaining the Weight ot' the strikingv bar and also insures mit: return otsaid striking member utter each downward movement et the tamping member T23. Secured to the forward or tree end ot the striking bar ttt? ie a sleeve ttt in whieh is mounted a head 95, the tace et' which is formed with a series ot teeth or seri-ations l till? arranged. to engage the teeth 9G ot the tampingg har 73, there being springa 97 arranged lWithin the sleeves 9e tor normally and yieldahly sinniorting the teeth ot the head in engagement with the rack bar.

ylhe tension ot the spring 9T is such that under ordinary eireumstanees the tamping bar Til will be looked against; vertical morem nient., but as the rement. tills the eompartment et 'the mold, the head Til, coming in contact with the cement or eonerete will disengae'e the teeth on said rack from the teeth on the head 9.3 and. thus permity rerlieal movement otl the tampingv memher TP,

it will thus be seen that the adjustment ot the tamping;- member 7B is automatic, said member accommodatingr itself to the height ot the cone rete or (rement Within the molding ehamher. as the latter is tilted.

The etrilting' bar is preteral'ily reinforced and strengthened by the provision ot lateral truss rods tw there being-r longitudinal truss i'ods tlf) arranged above and below the striking bar and secured in any suital'ile manner to the opposite ends ot' the striking' bar SO.

The plate tt? together with the i'ertieal 'trame ot the tamping mechanism is mounted Vlor rotation on a base plate 100, the latter being' secured to the adiaeent sills ot the uniin eupi'iorting frame and provided with an over-hanging flange ltll arranged to bear against. the upper surface ot the plate-(ST tor preventing accidental displacement ot the same.

fi handle l0@ is extended longitudinally from the. bars (it) at their points of attachment to the yoke 7l so that said tamping trame may be rotated on the bed plate ltlt) to a position out ofthe path ot n'ioi'ement ot" the Carriage lt when iti is desired to remove the mold 'from the table. rThus it will be seen that by manipulating` the handle 102. the tamping' member TB may he moved to a position above the mold so as to tamp the eontents ot the molding chamber when the table Carrying the mold is rotated on the earriage.

'The material is fed to the molding rompartment through a trough or spout ltl leading' trom a hopper 104, the eonerete or other material being supplied to the hopper hy a eonvejy'er or similar device 105. rranged within the hopper i014 is a hori '/:ontally disposed shaft 10h to whirh is sa cured a plurality oit spaced mixing' blades or paddles l0? which serre to agitate the inaterial in the hopper and thoroughly mix the saule before feeding Ihe latter tothe molding' eompartment. litoiion is transmitted from the shaft. .3h to the shaft 101': through the medium of a beltv 'lS extending; vertieally ot the main supporting trame and passing over pulleys .lOl and llt), one ot whit-h is sernred to the horizontal shaft 10U. as shown.

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' -with spaced sprocket wheels 114 which serve tb actuate the conveyer to deliver the con` crete or other material to the hopper 104. An annulai member or pallet 116 is also preferably positioned on each revolving table to form the bottom ofthe molding coin partnient.

In operation the molds are placed in position onthe table 17 and the carriage 1G actuated to move the iirst mold to a osition below the core member, after which the clutch 5() is actuated to rotate the shaft 14 and thus lower the core meinber28 within the mold. The 'clutch' 61 is then operated to transmit motion from the shaft 56 to the adjacent table 17 so as to cause the mold together with the core to revolve with the table as the concrete or other mateiial is fed through the spout 103 into tlie'molding compartment. As the'shaft 56 revolves motion will be transmitted through the medium of the belt, 87 to the tamping member 73, thereby to reciprocate the same and thoroughly tainp the material within the molding compartment as the table and its asso; ciated parts revolve. After the molding of the pipe is effected the handle 102 is grasped by the operator and the tamping mechanism swung laterally to a position out of the path of movenent of the mold. The hand wheel 40 is then rotated manually to slightly elevate the shaft 1li which permits the core member 28to collapse or contract and thus become disengaged from the interior wall of the molded pi e. After the core 28 has thus been disengage from the interior wallof the mold` ed product, said core is locked on the shaft 14 y means of a hook 115 engaging the upper end of the core member, as shown. The hand wheel 4() is then rotated in the opposite direction which lowers Ithe shaft 14 and causes the conical bearing sleeves 32 to engage the segmental plates 31 and expand the mold intofrictional engagement with the inner face of the molded product. The core together. with the shaft, now -remain relatively stationary, while the table carrying the mold is rapidly rotated, thus causing the smooth exterior walls of the core to polish the inner wall of the pipe or tile and produce a glazed surface which is impervious to moisture. After the polishing or glazing operation is completed the clutch member i 50 is actuated to elevate the shaft 14 and thus lift the core from the mold so as to permit the carriage 16 to travel longitudinally ofthe track, until the mold on the adjacent table is positioned beneath the core member. The completed pipe may now be removed from one table, while the clutch 50 @eases is being actuated to lower the shaft 14 and core 28 within the mold on the mating table thus permitting the continuous operation of the machine.

Having thus described the invention what is claimed is 1. In a machine of the class described, a

""mold revolves at another stage of operation of the machine.

2. In a machine of the class described, a inold-carrier, a mold mounted on said carrier, a core movable to 'operative position within the mold, means for simultaneously rotating the mold and core 1n the same direction during one operation of the machine,` and means for locking the core against rota' tion while the mold revolves at another stage of operation of the machine.

In a machine of the class described, a mold-carrier, a mold mounted for rotation on said carrier, a core movable to operative position within the mold, means for simultaneously rotating the mold and core in the same direction, during one operation of the machine, means for locking the core against rotation while the mold revolves at another stage of operation of the machine and tamp ing mechanism movable to a position above the molding compartment and adapted to tamp the material in said compartment while the mold and core are rotating to gether.

4. In a machine of the class described, a mold-carrier, a vertically movable core, a plurality of molds mounted for rotation on said carrier and movable successively to a position beneath the core, means for lowering the core within said molds, means for simultaneously rotating the core and the adjacent inold in the same direction during one operation of the machine, and means for loc ,ing the core against rotation while the moldv` revolves at another stage of operation ofthe machine.

5. In a machine f the class described, a carriage, a plurality of tables mounted for rotation on the carriage, a mold mounted for rotation with each table, a core movable successively to operative position within each mold, means for successively rotating each mold, and the-core simultaneously in the saine direction,"during one operation of the machine, means for locking the core against rotation while the adjacent mold revolves duringanother operation of the machine, and tamping mechanism movable yto a posiie mold for tainping the niet@ titer as said mold is revolved.

machine or the class described, e 'table mounted for rotation on the i mold carried by und movable ien the mold revel l ves during another ,we fl.

operation of the machine. in e machine of the elass described, marriage, e. table inounted for rotation on the carriage, u mold carried oy eno mounted` 'for rote-tion with the table, e hollow movable to operative position Within mold, e. threzidet shaft secured to the coreq n ans operatively connected with. the shaft r entomuticsll-y raising end lowering the Core, end ineens independent oie the entonnitic ineens to): .manuallyraising and lo lng the eore, ineens for rotstino' the it and core' in the saine .dire-Stien during operation of the machine, e'nfl Ineens lorkingg` the core against. rotation while i ves et another stage of operation lliilillvllln.

in' e, machine of the Class descr i table mounted for rote' mold eerried by und mounted o "ion Wit-h the table, en expensible movable to operative position Within mold, threaded shaft carried by the sleeve having interior threads for nent with the threids on the sluitt p a `pinion on one end thereof,

1 on the other, o stub shaft haii- :or engagement. with the pinion means operatively connected i shaft for rotating the latter the vertical movement ot the eore, or rotating the table, and ineens for the materiel within the mold as the .vol i i moll revel of t y whine ot' the rloss described, a .i bl

:ige mounted for travel on the o unlimited i'or rotation on the taile, an exp-illisible core movable to operative position within the mold, means il dispos@J shaft, o pinion carried by the longitu Kinsl shaft and movable into :ind out of engagi ment with the teeth on the ret-.k of the ile, and e connection between the Ilongitin` `l shaft and the stub shaft :tor

in e machine et the. class described, e track, a carriage mounted tor travel on the rack, a trible mounted for rotation on the es-irriage and provided with a rack, a mold carried by and mounted for rotation with' le tehle, a core movable to operative posiu tion 'ithin the mold, a shaft 4carried by the core, e main driving, shaft, a master gear secured to the mein driving shaft, a motor having opinion arranged to mesh with the meister gear, s stub shaft operutiifely connected with the core carrying shaft, a con- "eetion letvte .n the main shaft and stub ift- ;t'or rotating the stub shaft to raise and louer the nere-carrying shaft, means independent ot the motor for raising and lowerthe eoi'e-enrrying shaft, a longitudinal shaft having e pinion for engagement with the teeth on the table, and u connection between the moin shaft sind the longitudinal shaft for actuating the latter, thereby to rotate the table.

il. in e machine of the olass described, e mold carrier, :i mold mounted on seid oarier, a core carrying shaft having spaced -collers secured thereto, tapered bearing sleeves journaled between said collars, an expansible core loosely mounted on said shaft and provided with radiating arms having correspondingly tapered inner ends for engagement with the adjacent bearing sleeves, means for raising and lowerino' the core carrying shaft, thereby to expandandcontrat-,t the sore, means for rotating the mold and core in the same direction during one operation of the machine, and means tor loekingthe core against rotation while the mold revolves et another stage of operation ,ot the machine.

li). ln a umehino oi' the class described, a mold, a rotary :t1-anne, a horizontally disposed frame forming a part of the rotary renie and comprising longitudinal bars having their opposite ends converged, a yoke interposed between the converged ends of the bars it one end of the frame and provided with vertically alined openings, :x Striking har pivotally mounted between said hars at the opposite ends thereof, :L tampiiri,T eleineni slidablv mounted in the :iliued opone; 1/ ings ot the yoke and actuated by the striking` bar, a crank shaft, and a connection between the frank shaft Aand striking bar.

if?. ln u machine of the class described, a mold. a rotary frame, a horizontal frame forming' a part of the rotary frame, a yoke serai-vd to one'cnd of the horizontal trame end provided with registering openings, a tnmping element mounted for vertical movement within seid openings und provided with a rack', n striking bar pivotally mounted on tin` horizontal frame, a sleeve secured to one ond of the seriking ber, a spring actuated rotating the former.

heed carried by the sleeve and provided with a serrated face adapted to engage the teeth -In testimony that I claim the foregoing on the tampng member, a crank shaft, a as my own, I have hereto axed my slgnapitman forming a, connection between the ture in the presence of two Wltnesses.

crank shaft, and striking bar, and a Spring l JAMES TIIOIIIAS. disposed above said strlkng bar and con- Witnesses: nected with the latter and with the 'rotary T. WV. HAMMOND,

frame, respectively. J. SONNEMA.

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