US2263506A - Spoil tipping conveyer - Google Patents

Description

Nov. 18, 1941. J. '5. LANE SPOILYTIPPING CONVEYER Filed Feb. 2'7, 1959 3 Sheets-Sheet l Nov. 18, 1941. J. s. LANE SPOIL TIPPING CONVEYER Filed Feb 2'7, 1939 3 Sheets-Sheet 2 Fig. 6.

Inventor M v Attorney Nov. 18, 1941. 5 LANE 2,263,506

SPOIL TIPPING CONVEYERI A ttorney Patented Nov. 18, 1941 2,263,506 SPOIL TIPPING CONVEYER John Skelding Lane, Brierley Hill, England Application February 27, 1939, Serial No, 258,842 In Great Britain May 21, 1938 Claims.

This invention relates to a tipping conveyer for stacking colliery or quarry refuse, crushed stone or gravel, or the like material into piles to form storage banks. The object of the invention is to enable the conveyor to be extended beyond the normal length without having to dismantle the head end as is usually the case. Furthermore, a broad pathway is made sufliciently firm to support the conveyor when it has been extended beyond the supporting legs or standards. This is advantageous since extraneous elements are liable to undermine the conveyor structure and cause its distortion or even collapse.

According to the invention, the tipping conveyor consists of a main jib provided with a telescopically extending jib ,boom and a supplementary extension jib section or sections adapted to pass over the extending jib boom for connection longitudinally to the end of the main jib whereby the jib boom can be projected through the extension jib section or sections.

In the accompanying drawings:

Figures 1 and 1A are a side elevation of a tipping conveyer showing the main jib and the telescopic extending jib.

Figure 2 is a section on line 2--2 of Figure 1.

Figure 3 is a cross section on line 3-3 of Figure 1.

Figure 4 is a perspective view showing the conveyor jib and telescopic jib extending therefrom,

Figure 5 is an enlarged detail elevational view of the locking means for the jib boom, and

Figure 6 is a plan of same.

In carrying the invention into effect, the conveyor consists generally of a tail belt-storage section I, a main jib 2, a telescopic jib boom 3 located Within the jib 2 and an extension jib section or sections 4.

In the tail belt-storage section I is a conveyer belt 5 which after passing over a floating tension drum 6 and driving drum 1, whereby it is sandwiched with varying pressure according to the load, is deflected by a roller 8 and passes upwards to the top side of a storage belt drum 9 rotating in longitudinally slidable block bearings in a guide rail It), the driving drum 1 being operated by a power unit I I. After passing over the belt drum 9, the conveyor belt 5 passes rearwards under a deflecting roller l2, thence to a floating tail drum l3 rotating in a loaded bogie l4 running in guides l5 in the frame of the tail belt-storage section I whereby the tail drum l3 can be moved rearwards to the dotted position indicated. After passing over the tail drum l3, the conveyer belt 5 contacts with a reaction roller I6, thence beneath a collecting chute ll fed with material by an automatic feeder I8 from a hopper l9. By

this means, the length of the belt is doubled in the belt-storage section relatively to-the length required to be payed out to allow for the extending action of the jib.

The forward run of the belt 5 is supported by transversely troughed idler rollers 20 located at close intervals upon bearers 2| fixed in the upper part of the main jib 2 and frame of the beltstorage section I to dish the belt and prevent spillage of material contained thereon. The troughing effect may be obtained by a series of rollers disposed end-0n to each other and set in angular relation as shown in Figure 2. The return side of the belt is supported by horizontal rollers or idlers 22 fitted in the jib boom 3, main jib 2 and tail frame.

The belt-storage section I, main jib 2 and extension jib section 4 are pivotally connected by pivot pins 23 so that these members can be raised or lowered through an arc of plus or minus 5 degrees without causing the structure to become misaligned in a lateral direction from the line of direction originally set. The one pivoted section, can thus be set at an angle to the preceding section, this feature having the advantage that when it is required to start away from the horizontal position, one or more of the sections at some point ahead may rise or fall to angles relatively to adjacent sections. This has the further advantage in allowing for the inclination of the conveyer to be set for a varied acclivity to suit the nature of the site on which the bank is to be formed or to suit'the boundary lines of the site.

Within the main jib 2 is located the telescopic jib boom 3 which is formed of channel side members fitted withcross bearers 24 in which are mounted end-on rollers 25 transversely troughed similarlyto'the rollers 20 and for the same purpose, these rollers 25 carrying the outward running loaded belt 5 when the jib boom 3 is extended forwards from the extension jib section 4. A discharge head 28 is mounted on the end of the jib boom 3 for distributing the spoil.

At intervals upon the inner sides of the main jib 2 are flanged guide rollers 29 engaging with the upper side of the jib boom 3 for guiding same in its-slidable movement.

Each of the extension jib sections 4 is provided along their upper edges with trackway rails 30 so that when an extension is required, it can be mounted on detachable bogie wheels and ride on the rails 30 along the preceding extension jib sections 4 and be hauled to its position in line with the main jib 2 by a steel Wire rope operated by a capstan 3| which may be placed at the forward end of the belt-storage section I. Upon the same shaft as that of capstan 3|, a similar capstan may be mounted for paying out the conveyer belt, and a further capstan for extending the telescopic jib boom 3.

The side members of the jib boom 3 are slotted wherein pivoted double-armed catches 32 are mounted to act through a horizontal plane, these catches being subject to springs 33 bearing upon one arm so as to force the other arm into the path of a stop plate 34 on the endstr-utof the main jib 2 and 4. The object of these catches is to hold the jib boom 3 rigidlyin any pre determined extended position and prevent the same tending to slide backwards through the main jib 2 and 4 due to the reaction thrust of the load.

To give extra strength to the structure and at the same time to prevent a'smouldering bank from injuring the conveyer. belt 5, pressed steel corrugated plates 35 are fitted to the underside of the main jib 2 and 4, and the jib structure as a whole is supported by standards 36. I

In practice, when it is desired to extend the jib structure beyond the normal length obtainable'by the main jib 2 and projected jib boom 3,

"the belt 5 is disconnected and run back and the supplementary extension jib '4, devoid of the bottom rollers 2'! and plates 35, is moved forward upon the trackway rails 30 of the preceding jib sections 4 and. along the jibboom3-and placed in longitudinal alignment with the main jib 2 and inembracing relation to the jib boom 3. V L

With this arrangement, the jibboom 3 can be telescoped through the new supplementary extension jib section 4 to the required extent. When this extension jib section 4 is irlplace. a new length of belt connected up on the top side only is passed over the upper troughing rollers with a tubular centre spindle 2112) located by,

bolt rod 21E passing the'rethrough and through holes in the frame runners '2, and held in position by nuts ZiF threaded on the ends of bolt rod 21E. After securing therollers 21 in place,

the corrugated plates '35 are connected to the U frame runners 2 by nuts and bolts A spaced at suitable intervals.

What I claim is: 1. A tipping conveyer comprising a plurality of jib sections pivotally connected togetherin.

end to end relation, each of said sections having side frames, upper guide rollers and lower support rollers carried by the side frames of each section, a jib boom telescopically mounted with respect to said sections and being slidable along said guide and support rollers to project beyond the outermost of said sections, and upper troughed belt carrying rollers on said jib sections and jib boom.

2. A tipping conveyer comprising a plurality of jib sections pivotally connected together in end to end relation, each of said sections, having side frames, upper guide rollers and lower support rollers carried by the side frames of each section,

. trackway rails mounted on said side frames, a jib boom telescopically mounted with respect to said sections and being, slidable along said guide and support rollers to project beyond the outermost of said sections, and upper troughed belt carrying rollers on said jib sections and jib boom.

3. -A tipping conveyer comprising a plurality of jib sections pivotally connected together in end to end relation, each of said sections having side frames, upper guide rollers and lower support rollers carried by the side frames of each section, a jib boom telescopically mounted with respect to said sections and being slidable along said guide and support rollers to project beyond the outermost of said sections, straight lower belt carrying idler rollers on said'jib sections and jib boom, and locking means on the jib boom for holding the latter rigidly in any predetermined extended position '4. A tipping conveyer comprising a'pluralityof jib sections pivotally connected together in end to end relation, each of said sections having side frames, upper guide rollers and lower support rollers carried by the side frames of each section, a jib boom telescopically mounted" with respect to said 'sections'and being slidable along said guide and Support rollers to project beyond the outermost of said sections, a discharge head on said jib boom, a conveyer belt operating over said jib sections and jib boomand including a storage section, and means for paying out additional belt from the storage section as required.

5. A tipping conveyer comprising a plurality of jib sections pivotally connected together in end to end relation, protective plates fitted toand covering the underside frame-work of said jib sections, each of said sections having side frames, upper guide rollers and lower support rollers carried by the side frames of each section, a jib boom telescopically mounted with respect to said sections and being slidable along said guide'and support rollers to project beyond the outermost of said sections, a conveyer-belt operating over said jib sections'and' jib boom andincluding a storage section, a driving drum for said belt, and

a tension drum in engagement with the storage belt section and movable with respect to the driving drum to regulatethe work carrying length of said belt.

JOHNS. LANE.

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