US2210323A

US2210323A - Conveying rig

Info

Publication number: US2210323A
Application number: US118653A
Authority: US
Inventors: Walter E Lambert
Original assignee: MCMURRAY STRUCTURAL STEEL COMP
Current assignee: MCMURRAY STRUCTURAL STEEL COMP; MCMURRAY STRUCTURAL STEEL COMPANY Inc
Priority date: 1936-12-31
Filing date: 1936-12-31
Publication date: 1940-08-06
Anticipated expiration: 1957-08-06

Description

g- 1940- w. E. LAMBERT 2,210,323

- CONVEYING RIG Filed Dec 31, 1936 a Sheets-Sheet 1 w. E. LAMBERT 2,210,323

CONVEYING RIG Filed Dec. 31, 1936 3 Shee'tsSheet 2 &

Aug. 6, 1940.

g- 6, 1940- w. E. LIAMBERT 2,

CONVEYING Rm Filed Dec. 31, 1936 3 Sheets-Sheet 3 Patented Aug. 6,. 1 a

m G A BE S w te l nra g erttd," .ii f ia h n r -immm 21948 Application'Decembcl-fi,193G,Serial.No;-118,653

1 9 mm. (c1. 21 19) 1,

I This invention relates to an improvement in conveying rigs-of the type setrforth in my prior "application Ser. No. 734,387,.filed July 9, 1934, v

on, Conveying equipment, now Patent No. 5 2,062,227, granted November 24, 1936.

In conveying equipment of the type set forth in my former application, it has been customary to employ a rig mounted-on a'vehicle chassis in ,connection with a series of. skipswhich. may be individually-loaded ,with material, such as-dirt, rock, and .the like, while disconnected from the rig, and whichskips are then picked up by the rig and transported ,to the point of dumping, dumped and then returnedto be refilled. During ithe filling, the skips are not attached to the rig: but are separate in order to permit one rig to be ,usedin transporting and-dumping a number of skips, very often five or six. time and .cost.of operating the truck chassis, in-

zocluding the'driver thereof, is conserved Sothat the truck does not remainidle, while its con-x tainer is being loaded, and the truck-zmay opjerate continuously back and forth between thepoints of filling, and dumping in transporting the 25 various skips asthey are filled.

In the; conveying equipment set forth in the above-mentioned application-,; a cable hoist .was

employed in order to handle the skips, using cables wound on a'drum which were let out or .to which the-same is secured *a.rid"which 'is also secured to the sidebar 4-. The channels 5 of the ao wound up as occasion demanded in lowering or ;-raising the skips. r r

, The object of this invention is to improve the handling; of theskips, the attachment thereof to the rig or detachment therefrompfrom the 35 .standpoint of transporting and skips as theyare filledw I This is'accomplished in the presenteinvention. 1 by the use of a movable frame structure which is designated here as a shuttle-and which is op- 40'erated by .a hydraulic; hoist in order 'torais'e the .l same, the fluid being supplied by a suitable pump '-operated from a power take-offron the vehicle.

i-Thisshuttle has provision for'raising and lowering the skip in its" upward and .downwardmo've- 45 ment,;suchas by means of cables,-whichpass over sheaves. on the. shuttle, being: detachably -connected p at one endwith the-skip and being secured at the other end to alstationary part of therig so that upon raising ,the shuttle; and- The: rig. and ithe shuttle, irarneiarej sturdy j and rigid for 'smoothope'r'ationand yet securely 5 support the filled skips to the point of dumping.

In this way, the

dumping the Fig. 4 is a partial vertical sectional view, "taken I substantially on the line 4--4 of Fig. 3;

Fig. 5is a'sectional view through the hoist pump; and I'L'. K I I Fig. -6 is a horizontal-sectional "view through one ofthe 'cornerapost's'oifthe rig" 'frame;-

The invention is' -shown applied -to a vehicle chassis,havingthe usual chassis frame 1', supported on ground wheels 2, adapted-to bedriven ,by the usual engine 3, mounted in the chassis. a v The rig includes a" frame structure" mounted on thechassis, comprising side bars 4-,rigidly secured to the chassis name;- V The 'side' bars 4 preierablvare' channel guides turned edgewise .upon the chassis frame and rigidlyfs'cured thereto. Y At the I rear" ends-of the- "side bars 4, corner ,.;posts are securedand extend in an upward direction, substantially vertically each oiwhich comer posts consists "of an" upright channel bar or guide 5, carried and braced by an angle bar 6,

corner posts are turned inward toward each other to'receive a shuttle or cross head therebetween,

corner 'po'stsarebraced by brace bars: 8,:which mare. in the-form of angle-barspreferably;and

which extend fromthe side' 4 to points" near the upperends ofthe corner posts, the rear-ends ot the brace "bars 8 being" scuredto' thean'gle bars 6. Diagonal or cross braces lifeiiteird-be tween thebrace' bars-8 andhoid 'th'e safiiebroperly separated :in lateral leliirt iiiiii". -The upper] ends of:v the corner are strengthened and b further by means of'a transverse brace b which has its opposite ends securd -to 'tlief'brace bars 8:.at;the rearifacesiof' the channel guides 5,

as showm in -As=-'a furtherzim'ea'ris' of ,sflengthenlng the; frame; 'upright braces "I I Sex.- t enddrom thegtransverse brace? bar lz-llpwar dly to the, upper transverseabraceibar l l -,;=to.-:strengthenz thelatter and to facilitate the holding of the corner posts in proper relation, even when loaded.

The rig frame Just described is adapted to re ceive and guide a shuttle which comprises upright angle bars l2 having runners l3, secured to the outer faces thereof, as shown in Figs. 2 and 6, which runners l3 are received in channel guides 5 for sliding vertical movement. The angle bars l2 are braced at their upper ends by a plate l4 which extends therebetween and also by a cross bar l5, secured to the faces of the angle bars [2. A plate l6 extends vertically between the rear edges of the angle bars I2 to hold the same in properly spaced relation and to act as an abutment and shield for the skip and the dirt or other material therein.

The opposite ends of the cross bar l5 support brackets I1 between which are mounted swivels l3, carrying sheaves IS. A cable 20' passes over each of the sheaves and has one end permanently anchored to an anchor bar M, which projects laterally from and is secured to the corner angle bar 6. The opposite end of each cable 20 carries a hook 22 adapted for detachable fastening with an end connection 23 of a skip 24. The construction of this skip and the manner of operation thereof, is set forth fully in my pending application on Conveying skips, Ser. No. 8380, filed February 26, 1935, now Patent No. 2,085,029. granted June 29, 1937.

The cross bar I5 has a pivotal connection 25 with a piston rod 26 of a hydraulic power device having the usual piston operating in a cylinder 21, under fluid pressure, for raising the shuttle when it is desired to lift and transport the skip. The lower end of the cylinder 21 is carried by trunnions 28, journaled, such as in U-bolts 29, on thebracket 33 carried by the rear side of the transverse brace bar I, to which the bracket 30 is secured. .Tie rods 3| extend upwardly from the rearward edge of the bracket 30 to the transverse brace bar ID, in order to brace the bracket 30 and hold it in place.

The power device 21 is designed to be operated hydraulically by a charge of oil or other fluid from a suitable pump designated generally by the numeral 32. Any suitable pump may be used for this purpose, the one shown in Fig. 5

, being an ordinary gear pump which is well-known in Fig. 5, the fluid passing a check-valve 36 and a manually controlled valve 31, thence into the conduit 33, leading into the lower end of the i body of the pump 32 for the passage of the fluid power device. A by-pass 38 is provided in the g from the conduit 33 to the conduit in lowering pump and operated by a rod 40 leading to a suitable lever, .not shown, within convenient reach of the operator. l

The gears 35 of the pump are adapted to be driven by a drive shaft 4| having suitable driving connections and extending to a power takeoif 42 attached to a side of the flywheel housing of. the power plant 3, which housing encloses the usual flywheel, the gearing of which is geared through the power take-off to the pump shaft 4|. The conveying rig is designed to be used for transporting and dumping skips containing material such as dirt, rocks, etc., which skips usually are loaded manually. Inorder to prevent loss of time of the rig and its operator, this invention has provision for the individual transportation and conveyance of each of a plurality of skips, which may be conveyed as they are fllled for dumping and then returned to the point of filling. For this purpose, the rig may be detachably connected with the individual skips by hooking onto the flexible connections 23 with the hooks 22, while the shuttle of the rig is in its lower position, as shown in Fig. 1. Then upon operation of the pump 32, oil or other fluid is pumped into the lower end of the cylinder 21 forcing the piston upwardly therein and thereby raising the shuttle in the guides 5. Since the cables 20 are anchored at one end, this vertical movement of the shuttle and its sheaves I 3 causes movement of the cables 20 therethrough, shortening the rearward arms of the cables and thereby raising the skip against the rear side of the shuttle frame, substantially as indicated by dotted lines in Fig. l.

The skip is held in this position during transportation to the point of dumping, where upon release of a latch 24a, the door 24b of the skip opens and discharges the material, after which the skip automatically rights itself, closing the door and is ready for transportation back to the point of filling. The valve 31 may be moved to another position for interchange of fluid between opposite sides of the piston in the power device to lower the shuttle and permit disconnection of the skip therefrom, so that the rig may then be used for attachment to another skip as above described.

In order to relieve the pump and power device from supporting the weight of the skip during transportation and dumping, stop plates 43 are attached to the inner sides of the shuttle bars l2, and have pins 44, slidably mounted in guides 45 on the transverse bar Ill, in position to ride against the faces of the stop plates 43 when the shuttle is in its lowered'position and to engage under the stop'plates 43 when the shuttle is in its elevated position, so that these pins 44 assist in holding the weight of the shuttle and of the skip. The pins 44 are adapted to be pressed in a rearward direction by toggle levers 46 connected with the pins and pivoted together at 41, which pivot 41 has a rod 48 connected therewith, which rod 48 is acted why a spring 49 tending to move the pins 44 against the stop plates 43. A connection 50 leads from the pivot 41 to a position within convenient reach of the operator to permit him to withdraw the pins when it'is desired to lower the skip.- i

The construction described and illustrated provides a rigid and secure rig structure for the transportation and dumping of material by means of skips and both the rig frame and'the shuttle are sturdy and rigidly braced for the handling of the loads imposed thereon in the use of the invention. The connections between the structural parts of the structural frames are not illustrated because these parts preferably are welded together, although it is evident that they may be secured by rivets or bolts, as desired.

I claim:

1. In conveying equipment, the combination O a rig having an upright trackway thereon, a

an ons 3 shuttle operatively mounted in this trackway for up and down movement therein, one or more cable guides carried by the shuttle, a skip container of greater length than the width of the trackway, and flexible means laterally outside of the trackway and extending over the guide or guides and having one end thereof connected with the rig and the other end'having means for detachable connection with the skip forraising and lowering the same upon up and down movement of the shuttle.

2. In conveying equipment, the combination of a rig having an upright trackway thereon, a shuttle operatively mounted in the trackway for up and down movement therein, one or more cable guides carried by the shuttle, flexible means extending over the guide'or guides and having one end thereof connected with the rig and the other end adapted to support a skip for raising and lowering the same upon up and down movement of the shuttle, and hydraulic means pivotally connected directly with the rig and shuttle. respectively for moving the shuttle upwardly relative to the trackway.

3. In'conveying apparatus, the combination of a rig having an upright trackway thereon, a shuttle slidably mounted in the trackway for up and down movement relative thereto, cable guides secured to the shuttle on lateral outer sides of the trackway. a skip, and cables passing over the cable guides and each having one end permanently fastened to the rig and the other end detachably engaging an end connection of the skip for supporting the same.

4. In conveying apparatus, the combination of a rig having an upright trackway thereon, a shuttle slidably mounted in the trackway for up and down movement relative thereto, cable guides secured to the shuttle on lateral outer sides of the trackway, a skip, cables passing over the cable guides and each having one end permanently fastened to the rig and the other end detachably engaging an end connection of the skip for supporting the same, and a hydraulic power device having a piston rod connected directly with the shuttle for raising and lowering the same in the trackway.

5. In conveying equipment, the combination of a rig, including a frame having an upright trackway thereon, a shuttle slidably mounted on said trackway and having means connected therewith adapted to be connected with a skip a for raising and lowering the same, and a fluid power device including a cylinder and a piston pivotally' connected with the rig frame and shuttle.

6. In conveying equipment, the combination of a rig including a frame having an upright trackway thereon, a shuttle slidably mounted on the trackway and adapted to be connected with a skip for raising and lowering the same, and a power device including a cylinder pivotally connected with the rig frame and a piston and piston rod operatively mounted in the cylinder and connected with the shuttle for moving the same along the trackway.

'1. In conveying equipment, the combination of a rig having aframe and an upright trackway thereon, a shuttle slidably mounted on the trackway, means operatively connected with the shuttle and adapted to support a skip for raising and lowering the same, and a hydraulic power device including a cylinder pivotally connected with the rig frame, a piston slidably mounted in the cylinder, and a piston rod connected with the piston and pivotally connected with the shuttle for operating the same.

8. In conveying equipment the combination of a rig frame including an upright trackway, a shuttle slidably mounted on the trackway for up and-down movement relative to the rig frame,

said shuttle being adapted to be connected with a skip for raising and lowering the same, hydraulic. means carried by the rig frame and operativeiy connected with the shuttle for moving the same, pins carried by the rig frame in position to slidably engage under a portion of the shuttle in elevated position to lock said shuttle,

toggle levers connected with the pins, resilient means connected with the levers tending to move the pins to locking positions, and means con-' nected with the toggle levers for withdrawing the pins to release the shuttle.

9. In conveying equipment, the combination of a rig frame having upright guides on opposite sides thereof, braces for said guides, a shuttle having runners slidably mounted in the guides for "vertical movement of the shuttle relative thereto, anchor bars attached to the rig frame,

sheaves carried by the shuttle, a skip having end connections, cables extending over the sheaves and having one end secured to the anchor bars and the other end connected with the end connections of the skip, and a hydraulic power device including a cylinder pivotally supported by the rig frame and extending upwardly between the guides, said power device having a piston and piston rod operatively mounted in the cylinder and connected with the shuttle for raising or lowering the same.

10. In conveying equipment, a shuttle including upright bars having runners on opposite sides thereof adapted to engage in a trackway, a cross bar extending between the upright bars and connecting the same together adjacent the upper ends thereof, and a plate extending between the lower portions of the upright bars to hold the same in properly spaced relation.

1 1. In conveying equipment, the combination of a motor vehicle having a chassis frame, a rig frame mounted on the rear portion of the chassis frame and having upright guides on opposite sides thereof at the extreme rear end of said frame, a shuttle extending from side-to-side between the guides and having runners slidably mounted on the guides for upright movement relative thereto, a conveying skip having connections at opposite ends thereof, cable guides carried by the shuttle at opposite ends thereof, cables extending over the cable guides and each having one end attached to the adjacent end connection of the skip and the other end attached to the rig frame, and a hydraulic power device connected with the shuttle between the guides for operating said shuttle to raise and lower the skip relative to the rig frame.

12. In conveying equipment, the combination of a motor vehicle chassis having a source of power thereon, a rig frame mounted on the chassis at the rear portion thereof and having upright guides on opposite sides of said chassis at the extreme rear thereof, a shuttle extending from side-to-side'of the rig frame and having runners slidably mounted on the guides, a transverse bar carried by the shuttle rearwardly of the upright 19 the adjacent end connection of the skip and n the opposite end permanently fixed to the rig frame, and a hydraulic power device connected with the shuttle intermediate the upright guides for raising and lowering the skip relative thereto.

13. In conveying equipment, the combination of a motor vehicle chassis having a source of power thereon, a rig frame mounted on the chassis at the rear portion thereof and having upright guides on opposite sides of said chassis at the extreme rear thereof, a shuttle extending from side-to-side of the rig frame and having runners slidably mounted on the guides, a transverse bar carried by the shuttle rearwardly of the upright guides, cable guides carried by opposite end portions of said transverse bar, a conveying skip -having end con nections, cables extending over the cable guides and each having one end attached to the adjacent end connection of the skip and the opposite end permanentlyfixed to the rig frame, a hydraulic power device connected with the shuttle intermediate the upright guides for raising and lowering the skip relative thereto, said power device including a cylinder pivotally attached at one end to the rig frame and having a piston therein with a piston rod extending through the opposite end and pivotally attached to the transverse bar, and means for operating saidpower device from the source of power on the motor vehicle.

14. In conveying equipment, the combination of a motor vehicle having a chassis frame, a rig frame mounted on the rear portion of the chassis frame and having upright guides on opposite sides thereof, a shuttle extending between the guides and slidably mounted for upright movement relative thereto, a conveying skip container having connections at opposite end portions thereof, cable guides carried by the shuttle at opposite ends thereof, cables extending over the cable guides and each having one end attached to the adjacent end connection of the skip container and the other end attached to the rig frame, and a hydraulic power device connected with the shuttle for operating said shuttle to raise and lower the skip container relative to the rig frame.

-15. In conveying equipment, the combination of a motor vehicle having a chassis frame, a rig frame mounted on the rear portion of the chassis frame including upright guides at opposite side portions, a shuttle slidably mounted between the guides for upright movement relative thereto, a conveying skip container of greater length than the width of the rig frame and having connections at opposite end portions thereof, means laterally outside of the upright guides and connected with the shuttle and having detachable engagement with said end connections, and a hydraulic power device connected with the shuttle for operating said shuttle to raise and lower the skip container relative to the rig frame.

16. In conveying equipment, the combination of a motor vehicle having a chassis frame, a rig frame mounted on the rear portion of the chassis frame including upright guides at opposite side portions, a shuttleslidably mounted between the guides for upright movement relative thereto, a conveying skip container of greater length than the width of the rig frame and having connections .at opposite end portions thereof, means laterally outside of the upright guides and connected with the shuttle and having detachable engagement with said end connections, and means connected with the shuttle for operating said shuttle to raise and lower the skip container relative to the rig frame. v

1'7. l'n conveying equipment, the combination of a-motor vehicle having a chassis frame, upright guides mounted on the chassis frame, a shuttle slidably mounted on the guides for upward movement relative thereto, a conveying skip container of greater length than the width of the rig frame and having connections at opposite end portions thereof, said skip container being free from guiding movement on the shuttle for disconnection and bodily movement laterally-therefrom, means laterally outside of the upright guides and connected with the shuttle and having detachable engagement with said end connections for supporting, the skip therefrom, and means connected with the shuttle for operating said shuttle to raise and lower the skip container relative thereto.

18. In conveying equipment, the combination of a motor vehicle having a chassis frame, a conveying skip container, said skip container being bodily detachable from the chassis frame for filling separate from the vehicle and for bodily movement of the vehicle relative thereto, said skip container having connections at opposite end portions thereof, a device mounted on the chassis frame for upward movement relative thereto, said device having means laterally outside of the chassis frame for detachable engagement with said end connections, and means for raising said device to elevate the skip container onto the chassis frame.

19. Inconveying equipment, the combination of a motor vehicle having a chassis frame, a conveying skip container, said skip container being bodily detachable from the chassis frame for filling separate from the vehicle and for bodily movement of the vehicle relative thereto, said skip container having connections at opposite end portions thereof, a device mounted on the chassis frame for upward movement relative thereto, said device having means laterally outside of the chassis frame for detachable engagement with said end connections, hydraulic means for raising said device to elevate the skip container onto the chassis frame, and means on the chassis frame against which the skip container bears during transportation tending to prevent side sway of the container relative to the chassis frame.

WALTER E. LAMBERT.