US1462311A - Pipe-forming plant - Google Patents

Description

July 17, E923- D. L. WILLIAMS PIPE FORMING PLANT 2 Sheets-Sheet 2 uF'iled May 19, 1920 l 61H0: um) Y mini@ l Innen/tov To all whomct may Patented July 17, 1923.

4'r1iut-roniirilve rLAN'r.

Apiiiianon med 'May' 19, 1920. seriai'no. 382,472.

concern.' Be it known that I, Davie L. citizenof the United States, residing at semer, in the county of Jefferson and State a of Alabama, have invented certainv new and useful Improvements in Pipe-Forming Plants, of which the following isr a specification. l

This invention relates to pipe forming male chines, and it comprises a turntable adapted to receive moulding flasks, a sand chute arp ranged above said turntable, whereby a flask arranged thereon may be turned to the proper position and filled with sand, the flasks being rammed while on said turntable, a conveyor table for receiving said flasks, a shakeout hopper arranged near said conveyor, said conveyor being adapted to `deliver the flasks to said hopper after the flasks have been poured, a second conveyor for returning said flasks to the turntable, and a conveyor hopper to a sand bin arranged near said chute; all as more fully hereinafter set forth and as claimed.

In the present invention, I have devised an apparatus for pipe making wherein a turntable is employed, the turntable being adapted to receive flasks for making pipes of ifferent sizes or diameters, and is so arrange that any of the flasks may be turned to the proper position for receiving the moulding sand from a sand chute. Vhen the necessary amount of sand has been delivered to the ask, the flow of sand from the chute may be cut ofi` and the flask turned to another position to permit filling of a second flask. The flasks are removed from the turntable after they have been rammed by an overhead crane and carried to one of two conveyor tables. When a sufficient number of liasks have been arranged on one of the conveyor tables, the metal is poured and the flasks conveyed to a shakeout hopper arranged near the end of the table. The moulded pipe is separated from the sand, the sand being returned to a bin from which it is fed to the hopper. Vhile one of the conveyor tables is receiving flasks which have been filled with sand, the empty flask from the other conveyor table may be returned to the turntable.

In the accompanying drawings, I have shown one embodiment of the invention. In this showing,

WILLIAM-s, ab'.

Be'svform supports for returning the sand from thev Figure 1 is al plan view of the apparatus. Figure 2 is a side elevation thereof. Figure 3is a plan view of the turntable.

v Figure 4l isa vertical sectionalview of the turntable, and" l A Figure 5 isa transverse vertical sectional view onthe line 5*'-5 of Figure .1Q

Referring 'to the drawings, comprises a base 1 which may cured to any foundation as at 2, and which is rovided with a central pin or shaft 3 upon which the rotating portions of the turntable are mounted. As shown, a plurality of arms l are arranged on the upper section of the turntable, and these arms are adapted to for the moulding Hasks. Each of the arms is provided with plates or flanges 5 arranged at the sides and adapted to hold the flasks. in position. Asand chute 6 is arranged immediately above the turntable. As shown in Figure 1, the chute is so positioned that sand may be delivered to a flask arranged on one of the arms of the turn table. The chute may be provided with suitable cutoff mechanism (not shown) to control the flow of sand. An elevator 7 communicates with the upper end of the chute and delivers sand thereto. This elevator receives the sand from a sand screen 8 which d communicates with a sand bin (not shown).

A guide plate 9 is arranged beneath the screen and is adapted to deliver the sand to the elevator.

Arranged near the turntable is a pair of conveyor tables 10 and 11. An overhead crane 12 is adapted to convey the flasks from the turntables to the conveyor tables. As shown, the overhead crane travels on a track 13 arranged over the two conveyor tables and one of the arms of the turntable. Any type of overhead conveyor may be employed an as shown` it is provided with a trolley wheel 14 and suitable holding means 15 to grasp the flasks and hold them while carried to the conveyor tables.

A shakeout hopper 16 is arranged near each of the conveyor tables. The shakeout hoppers are provided with a perforated top shown as a grating 17, and a screw conveyor 18 is arranged in eah of the hoppers. sand return pipe 19 is in communication with the hoppers through branch pipe 20, and the sand is adapted to be returned to the sand bin through this return pipe. In the drawings, I have shown the return pipe commuthe be suitably se-zthey are being .nCatiDg-fwitbtoely 91.165,01? the. hepprebet it What, lllaimviss,

1S apparenti that 'an yordinary branch pipe Ixnptipejoeieg Fleet@ mlsieg Plat- -20 k connection may be arranged between,l the form comprlslng abase, a turntable mounted other hopper andthe pipn19. The sand s to revolveon said base, said turntable comconveyed through pipe 1-9" by any suitable prisi-nga hub,'andl-ap1uralty of radial arms means. In the present instance, I have,A dis,- GXQDQI! therefrom; Saida'ms. being of Sub' closed the use of compressed air for return! 'stantia'lly 'uniform Wldth and adapted to sup- 25 ing the sand. As shown, ab compressed port, molding and retaining means pipe 2l s connected to thesand return pipe, comprising plates secured tothe sides of said @ir under: pressureibeinesuppliedo the-pip@ arms and projectlle @bere-the. Surfe, Seid "21 from anys aleseurce L ,Pletebeing;adapbedf9--qnteet withrhe-Sies Although If haya p1=efr`1fdtemb-0dment of, intentie@ it iS lhttstileeny whereof 1,; aix my Signature.' to be understood that various changes'in ttl-1e,` inY` presence: oQfgizlyWvov'Wltgflessesq p l shape,size,,andfanrangementot pants-,may be 1 v DAVID- L, WILLIAMSy resorted t0 Witholltfdpatng.fmmthespirit Witnesses; t ot'thezinuentinnprther-seep@Qf-thesuhjoined W. S. BLUE,

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