US894813A

US894813A - Concrete-conveyer.

Info

Publication number: US894813A
Authority: US
Inventors: Josiah William Buzzell; William H Larkin Jr
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-06-13
Filing date: 1907-06-13
Publication date: 1908-08-04
Anticipated expiration: 1925-08-04

Description

No. 894,813. I 1 [PATENTED A G. 4, 1908.

J.- w. BUZZELL & W. H; LARKIN,. JR.

CONCRETE GONVEYER.

APPLICATION FILED JUNE 131.1907. 4 3 SKEETB-BHEET 1-.

a0 l as INVENTORS ATTORN EY PATENTED AUG. 4, 1908.

. J. W. BUZZELL & W. H. LARKIN, J'n. CONCRETE GONVEYER.

APPLICATION FILED JUNE 13, 1907.

- 3 SHEETS-BHEET 2.

,2. I W W X I x j I, 344

ATTURN'EY No. 894,813. PATENTED AUG. 4, 1908.

J. w. BUZZELL & W. H. LARKIN, JR.

CONCRETE OONVEYER.

AlPLIdATION FILED JUNE 13, 1907.

3 SHEETS-SHEET 3,

INVENTORS fi BY {5M ATT RNEY distances.

' placed inside t UNITED STATES I PATENT oEEIcE.

JosrAn WILLIAM BUZZELL, OF EAST ORANGE, NEW JE SEY, AND WILLIAM H. LARKIN, JR.,

' OF Wo oEsTER, MASSACHUSETTS.

' GONCBE'IE-CONVEYER.

Specification of Letters Patent.

Patented Aug. 4, 1908.

Application filed June 13, 1907. semi No. 878,897.

To all whom 'it may concern:

Be it known that we, JOSIAH WILLIAM BUzzELL and WILLIAM H. LARKIN, Jr., citizens ofthe United States, and residents, res ectively, of East Orange, in the county of ssex and State of New Jersey, United "States of America, and of Worcester, in the lowing specification and point out its novel featuresin claims.

Referring to the drawings, Figure 1 is 'a side elevation, partly in section, of an apparatus which we have designed for carrying our invention into effect. Fig, 2 is aside elevation, partly in section, of an arrange-' ment for handling and conveying material in larger quantities. Fig. 3 shows in cross-sec tion a pressure-controlling valve which may be used in conjunction with the arrangement of parts shown in Fig. 2. Fig. 4 is an elevation of another form of our invention, showing a manner in which the apparatus maybe used for conveying niateria to considerable Fig. 5 is a plan view of some of the parts shown in Fig.4..

Like characters of reference designate corresponding parts in all of the figures.

designates a concrete mixer of wellknown construction; 1 1 is its charging and 12 its discharge chute. This is operated in the usual way and is arranged to discharge into a hopper .the lower end of which is'sealed by a plate 21. This plate is pivoted at 22. and is held up against the lower end of the ho per by a w'ei hted arm 23' which may e ie ho per if desired, or outside of the hopper as sl iown so that it may be manually operated.

' Below the hoppenZO is a pressure chamber 25 which, for convenience of manufacture,

maybe in alinement with and'of thesame shape as the ho per 20 so that. the same parts may form t e sides of both the hopper and the pressure chamber. A discharge ipe 26 is connected with the pressure chamlier, preferably at its lower end, and if desired, a valve 30 may be placed in this pipe.

l 31 designates a'lever which is' connected -valve 'may be operated.

35 is a condenser chamber in below the valve 30. v

40 designates a pipe from a suitable source of fluid pressure supply such, for example, as

the pipe 26 pipeisconnectedjwith the pressure chamber 25 at 41 at a point preferably above the seal of the hopper; A controlling valve 42 in the pipe 40 provides means for turning the pressure into or shutting it ofi from the pressure chamber 25. p v v 43 designates a relief pipe and-44 a manually operated valve in this pipe. At 45 is shown a pressure with thepressure chamber 25.

ed with the lower end of the'press'ure chamber 25, and 51 is a valve in this pipe to shut offlthe pi e or to control the flow of water through 1t.. v denser chamber is connected with the'water supply by a pipe 53 which is controlled by a valve 54. The nozzle 52 is alsoconnected with the steam or air pressure su ply by a pipe 46 in which is a controlling va ve 47.

vention which We have illustrated we will point out the operation of the apparatus which we have already described.

The matter to be conveyed is first placed in the hopper 20. If the apparatus is to be used. for conveying concrete the various inin the mixer 10, and from thence are discharged into the hopper in semi-liquid condition and designate character X. In the beginning of the-operation the" valves 30 and 42 n'iay be close and the fmixed concrete allowed to pass directly into the pressure chamber '25 by opening the seal 21. -If the valve 30 is close this will stop the outward flow'of the material so that the concrete will fill the pressure chamber. When a sufiicient uantity of'concrete has thus been placed wlthin the "pressure chamber, the seal 2l is closed, the discharge-con- ..tnolling-valve 30 opened, and valve 43 opened to admit pressure from the source of pressure sup ply to the ressure chamber. his will cause the material within the pressure chamber to be forced out through the discharge pipe 26.

gage conn'ected A nozzle '52 within the con Before describing the other parts of our in in the drawings by- ,the Y with the valve 30 and by means of which the steam -or compressed air. I This pressure 50 is a-water supply pipe which is conneetgredie'nts which form the concrete are placed condensation which will produce a partial I vacuum into which the concrete-from the 4 her through the water pipe 50 in order to pressure chamber will be drawn. This will prevent arching of the concrete in the lower contractedend of the pressure chamber and will facilitate the o eration of the a aratus. The jet of steam-w 'ch is introduce lnto the chamber 35 under pressure will also tend to carry along the moving mass within the discharge (pipe and thus act as a booster. Water un er pressure may be also forced into the condenser chamber and this will prevent the semi-liquid concret setting and will also aid in forcing it through the discharge pipe.

We also provide means for introducin water into the lower end of the pressure 0 amprevent setting and arching of the concrete at the lower contracted portion of the pressure. chamber. This water connection also furnishes means for filling the lower part of the pressure chamber with water when not in use, thus keeping the parts clean and preventing them from becoming incrusted with and clogged up by hardened concrete. The water may also-be forced out of the pressure I chamber by steam or air. pressure or under its own ressure, through the valve 30, condenser c amber 35 and discharge pipe 26 to flush these parts and-cleanse them.

While the part of the operation above described is taklng place, the hopper 20 may be gradually filled from the mixer 10 so that as soon as the material in the'pressure chamber has been forced out as described, a new supply of material may be quickly placed within 7 directly into the hopper 20'.

the pressure'chamber by opening the seal 21 Before doing this the valve 42 is closed to shut off the pressure supply from the pressure charnber and it may be necessary toopen the valve 44 to release the plressure, as the pressure within the chamber as a tendenc'y to maintain the seal in its closed position. The a paratus nay'be worked satisfactorily w-it out the use of the valve 30 in the discharge pipe but in man cases we find it advantageous to lace a va ve in the pipe not only for facilitating the (part of the operation which we have above escribed, but for controllin the quantity of material supplied at the disfiiarge oint.

In Fig. 2 we ave'illustrated. a modification of our invention. In this case two

hop pers

20 and 20"-areused. The mixer 10 in this case is so situated that it will discharge A chute 13 is provided, however, to lead the concrete discharged from the mixer into the hopper 20 when desired. The upper section 14 ofthis chute is pivoted at 15 as shown, andis'pro- Y 'vided with an actuating lever 16 by means of whichthe section 14 may be moved away from the discharge chute 12 of the mixer.

case.

a common piston rod 63.

through the with the controlling gear 72.

The lower end of thehop er 20 is sealed in the manner. before descri ed. .21, 23 and 25 designate corresponding parts under the other hopper'20. The discharge pipe from the pressure chamber 25 is designated in this case by the numeral 27. The

discharge pipes

26 and 27 from the two pressure chamers are connectedthrough a common condenser chamber 35 toa discharge pipe 28.

The nozzle 52 within this condenser chamber may be connected with the fluid pressure supply pipe 40 by a pipe 46, or with-water supply 'pipe bypipe 53 as in the previous 32 is a valve in the discharge pipe 27. It may be placed in alinement with the valve 30 and the pistons of both valves supported upon a common piston rod 32. A connect in'g rod 33 is arranged to connect this piston rod with a bell-crank lever 34 which is ivoted. at 34 and 'arran ed to be moved y an actuating rod 36. T e water supply pipe 50 is shown connected with the lower portions of both

pressure chambers

25 and 25, and

:two controlling valves 51 and 51 are provided as shown. Between the two pressure chambers, a valve is placed. This valve comprisestwo pistons 61 and 62 mounted upon The pressure pipe 40 is connected with this valve at its central portion. A pipe .64 is connected with the pressure chamber 25 and with the valve 60 ]ports 65 and 66. 67 is a pipe connecting t e pressure chamber 25 with the valve 60 through the

ports

68 and 69. 70 designates a manually operated crank by means of which and a pinion 71 a controlling gear 72 may be rotated. '17 designates a connecting rod which is arranged :to. connect the chute actuating lever 16 concentrically The actuating rod 36 for

valves

30 and 32 is siinilarlycqnnected with the controlling gear 72, as is also a connectin 4 rod 63 between the controlling gear and t e valve 60. In operating this form of our invention, when the parts are in the position shown in Fig. 2, the semi-liquid concrete or other material in the pressure chamber 25 is being forced out throughdisv charge pipe 26, through valve 30, and into and through condenser chamber 35 and the discharge pipe 28. The hopper 20 is shown filled, and the concretefrom the mixer 10 is being discharged into the hopper 20 and pressure chamber 25. During this part of the operation, pressure su ply pipe 40 is connected with the ,pressure 0 amber 25 through the port 66 of the valve'60 and the pipe 64, at the same time, the pressure from pressure chamber 25" is released through pipe 67 and port 68 of the valve 60. The parts may be so arranged that the weighted lever 23 is not sufliciently heavy to cause the seal 21 to remain closed when the additional weight of r the concrete in the hopper 20 is placed upon it if there is no pressure within the pressure valve 60, and at thesame pressure -to be admitted to pressure chamber 25 through port 69 and pipe ,67. The upper section 14 of chute 13 will be moved away from the. discharge chute 12 of the mixer 10 so that the concrete issuing therefrom will flow into hopper and through seal 21 into pressure chamber 25. The'pressure now admitted to pressure chamber 25 willcause the seal 21 to be automatically closed and will cause the concrete in this pressure cham- Inthis manner a charge pipe 28 to her 25 pipe 27,. valve 32, into and denser chamber 35 to be forced out through discharge through the cone forced through the disthe desired point of deliv ery, and a very large quantity of material may thus be conveyed during a given time in a simple manner.

In Figs. 4 and 5 we have shown another manner of carrying out our invention. In this casethe mixer 10 is placed midway between the two hoppers bers, and the concrete discharged from the mixer is led directly into one. or the other of the pressure chambers or into the hoppers above them by a pivoted chute 14. Beyond the condenser chamber 35

other condenser chambers

35 and 35 are shown in the discharge pipe 28. All the condenser chambers may be connected with the pipes 40 and as shown. Our apparatus may be used successfully for conveying material to conof concrete may siderable distances without the aid of these condenser chambers, but as these serve the purpose of preventing the concrete from setting during the operation, and also act as boosters, it may be seen that the'dischar'ge pipe may be that material'mayj be conveyed great distances ,through it. p The pipe line may be provided at intervals with sections 29 of flexible material so that it may be shifted without interruptin its service. Its outer end 28 may be exible and charge nozzle 28*, an

the valve 2SImay placed near the point'of discharge to facilitate the handling of the conveyed material at the By this apparatus the mixed concrete maybe carried any distance from the .mixer to the desired point of dis.- 5 discharged directly into 5 Thus algreat saving of .time and labor is accomplished and advan point of discharge.

chardge and may be mol s or forms.

tages gained over former methods used, such as b buckets, wheelbarrow's, carts, hoists, derrloks or telpherage systems. The: con

time will cause and discharge pipe 28. ractically continuous flow.

and pressure chaInpressure chamber, and

removable seal between the hopper I chamber, a discharge pipe connected. with extended any desired length and said chamber, and a pressure pi e cpnriected Iprovided with the dis-1 be i b our invention to show that we do not limit ourselves to anyspecific mechanism or app ratus .for' carrying 1t course, obvious that our invention is applicablefor conveying other material than concrete.

What we claim 1s.

' 1. The combination of a hopper, a chambetween'the hopperber, a removable seal and the'chamber, a discharge pipe'connected with the chamber, and meansfor maintaining pressure within the chamber.

2. Thecombination of a hopper, a chamber, a removable seal between the hopper and the chamber, a discharge pipe connected with the chamber, pressurewithin the chamber, releasing the pressure within the chamber.

3. In a conveyer, a chamber, a hopper, a

means for maintaining removable seal between the hopper and the. lpipe connected with.

chamber, a discharge the lovs er portion of sai chamber, a-valve in .the discharge pipe, a pressure plpe-connected with the upper portion of the chamber, anda valve in the pressure pipe. 4. The combination ofa pressure chamber,

and means forinto effect, and it is, of'

a discharge pipe connected with said chamber,

means for mtro'ducin'g; pressure into the additional means for directly introducing pressure into the discharge pipe.

5. In a conveyer, a chamber, a. hopper, a

removable seal between the hopper' and the I chamber, a discharge pipe connected with said chamber, meansfor introducing'pressu-re into the chamber, and means for introducing pressure into the discharge ipe,

6. In a conveyer, a chamber, a opper,. a

with the chamber and with-t e discharge pipe. 7. In a conveyer, a pressure chamber, a

hopper, a removable seal .between the hopper and the chamber, a discharge pciipe con nected with the lower portion of sai chamthe up er portion of the pipe connected with g p the. ischarge-pipe, a

chamber and valve in the pressure pipe in its connection with the pressure cham er, a valve in the discharge pipe, a pressure,

of the chamber, a discharge pipe for conveyingthe material away. from the chamber, and acondenser chamber in the discharge pipe. p 9. In a conveyer, a chamber, ahop er, a seal between the hopper and the cham er, a discharge pipe connected with said chamber, means for introducing pressure into the chamjber, a condenser chamber in the discharge pipe, means for introducing stealn into sald condenser chamber, and means for introducing Water .into'said condenser chamber. 10. In a conveyer, a chamber,.a' hopper, a removable seal between the hopper and the chamber, a discharge pipe connected with .the lower portion of said. chamber, a con- 'denser chamber in the dischargepipe, a pressure ipe connected with the upper portion of t e chamber, means for introducing steam into the condenser chamber, and means for introducing water into the condenser chamber.

11. In a conveyer, a ressure chamber, a discharge pipe. connected with said pressure chamber, ,a steam. pipe connected with the pressure chamber and with the discharge pipe, and awater pipe connected with the pressure chamber and with the discharge pipe.

\ 12. In a conveyer, a chamber,'a hopper, a removable seal .between the hopper and the chamber, a.discharge pipe connected vrith said chamber, a pressure pipe connected with .the chamber, and a water pipe connected with the chamber.

13. In a conveyer, a ressure chamber, 'a discharge pipe connecte with said pressure L 3 chamber, a condenser chamber in the charge pipe, a steam pipe connected with .the a pressure chamber and withthe condenser chamber, and a water pipe connected with; the pressure chamber and with the condenser chamber.

14. In a conveyer, a pressure chamber a discharge pipe connected with the pressure chamber, a pressure pi e connected with the pressure chamber, an connections between the pressure pipe and the discharge pi e at intervals alongthe length ofthe disc arge p1 e. 1 I i5. The combination of a plurality of pressure chambers, a discharge ipe, connections between the lower ends oft e chambers and .the discharge pipe, a valve in each of said discharge connections, a pressure pipe connected with the up er ortions of the pressure chambers a va lveetween the pressure ipe and each of the chambers, and means or actuating the valves for introducing ressure into any one of the chambers and. 0 or opening the valve in the discharge con.-

. nection of the same chamber.

1 6. The combination of a plurality of hoppers, a plurality of chambers associated therewith, .a removable seal between each hopper 5 .and its respective chamber, a discharge pipe dis- - lower portion connected with .,each of the chambers,and nfeans' foralternately' introducing pressure into one or another of the chambers.

17. The combination of a pers, a plurality of cham ers associated therewith, a removable seal between each hopper and its respective chamber-,a dis--' charge pi e, a connection between the lower portion 0 each chamber and-the discharge pipe; a valve in each of said discharge connections, a pressurepi ie connected'with the upper portion of the c ambers, a valve between the pressure pipe and its connection i with each of the chambers, and meansqfor "actuating the valve to connect the pressure pipe with any one of the chambers, to open the valve in the discharge connectionof, the same chamber, and to c chambers.

18. The combination ofa plurality of hop pers, a plurality of chambers associated with the hoppers, a counterbalanced seal between each hopper and its respective chamber,a discharge pipe,- a connection. between i the of each 'chambersand" the discharge pipe, .a valve in each of said discharge connections, a pressure pipe connected with the up er portion of eaich of said chambers, ,a

valve etween the pressure pi e and its. connections with each: of the c ambers, said valves being arranged to introduce, pressure 7 into one or-another of the chambers and to release the pressure from the others of said chambers, and means for actuating the pres-' sure pi e valves and the dischargeconnec'' 7 tion va ves together.

19. The combination of a plurality of pres? sure chambers, a discharge ipe, connections between the lower ends of t e chambers and the discharge pipe, a valve in each of said discharge connect1ons, a condenser chamber in the discharge pipe, a steam ipe connected with the upper' portions 0 the pressure chambers and with the condenser chamber, a

valve between the steam pipe and each of the chambers, and means for actuating .the. valves for lntroducingpressure into any one of the chambers and for opening the valve in the discharge connection of the same chamber.

20'. Tliecombination of a plurality 'of pressure chambers, a discharge plipe, connections between the lower ends of t the discharge pipe, a valve in each'of said discharge connections, a condenser chamber I in the discharge pipe, a steam pipe connected with the upper portions-of the pressure chain'- bers and with. the condenser chamber, :a water pipe connected with the lower portions of the pressure chambers and with the con denser chamber, a valve between the steam pipe and each of the chambers, a valve .between the water ipe and each of. the chain-1 bers, and means or actuating the valves for plurality of hoposethe valve in the .discha'rgel connections of the others of said e chambers and with the lower portions of the pressure chambers and with the condenser chambers, a

valve between the steam pipe and each of the chambers, a valve between the water pipe [scan] and each of the chambers, means for actuate,

ing the valves for introducin%pressure into j or opening the p an one of the chambers, vand va ve in the discharge connection of the same chamber, flexible omts invt he dischar e pipe and a flexible discharging end on t e dlS- charge pipe.-

In testimony whereof we have signed our respective names to this specification in the presence of two subscribln'g wltnesses.

William H. Larkin, jr., of Worcester, Massachusetts, for an improvement in Concrete Conveyors, an error appears in the printed specification requiring correction,- as f llows: In line 104, page 2, the word concentrically should read eccenirwallp; and that the said Letters Patent should be read with this correction therein that the same may. conform to'the record of the case in the E 'atent Qflice.

sighed and sealed this 29th day of December, D., 1908.

-o.- o; BI LLINGS, Acting Commissioner of Patents.

It is hereby certified that in Letters Patent No.i894,813, granted August 4, 19Q8, upon the application of Josiah William Buzzell, of East Orange, New Jersey, and

. with the lower portions of the pressure chambers and with the condenser chambers, a

sighed and sealed this 29th day of December, D., 1908.

-o.- o; BI LLINGS, Acting Commissioner of Patents.

Correction in Letters Patent No. 894,813

It is hereby certified that in Letters upon the application of Josiah William William H. Larkin. jr., of Worcester, Massachusetts, for an improvement in Concrete- 0011 veyers,

follows: In line 104, page 2, the word concentrically an error appears in the printed that the said Letters Patent should be read with this correction therei specifieation requiring should read eccenlrically;

correction, as

an d

n that the same '0. C. BILLINGS, Acting Comm ssioner of Patents.