US1036481A - Material-handling mechanism. - Google Patents

Description

G. A. PRAYER. MATERIAL HANDLING MEGHANISM. 'APPLIOATION FILED ammo, 1910.

1,036,481 Patented Aug. 20, 1912.

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COLUMBIA PLANOGRAPH cm, WASHINGTON. n. C.--

G. A. PRAYER.

MATERIAL HANDLING MECHANISM.

APPLIOATION FILED JAN. 20, 1910.

Patented Aug. 20, 1912.

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COLUMBIA PLANOGRAPH COUWASHINGNN, n. c.

O. A. PRAYER.

MATERIAL HANDLING MECHANISM.

APPLICATION IILBD JAN. 20, 1910.

Patented Aug. 20., 1912.

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ilTED STATES PATENT OFFTQ.

CHARLES A. PRAYER, OF TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE BUCYBUS COMPANY, OF SOUTH MILWAUKEE, W ISCONSIN, A CORPORATION OF WISCONSIN.

MATERIAL-HANDLING MECHANISM.

Applicationzfiled January 20, 1910.

This invention has utility when-embodied in drag line excavator and loading mecha nism.

Referring to the drawings: Figure 1' is a side elevation of the invention for drag line bucket adapted to discharge'into a skip; Fig. 2'isa sectional view looking down on the lower portion of the pivoted derrick frame and its supportingbase; Fig. 3 1s a perspective view of-the mast and boom carried by the derrick frame; Fig. 4 is a fragmentary view of the adjusting device for varying the inclination of the boom; Fig. 5 is a side elevation of the mast and boom, showing the bucket being elevated by the boom; Fig. 6-is a View similarto Fig. 5, but with the bucket in dumping position; Fig. 7 is an enlarged detail of the trip-and retaining devices, showing the parts of the bucket in dumping position; Fig; 8 is a longitudinal section ofthe bucket; and Fig. 9 is a front view of the bucket.

The platform or base 1 carries theframe the base 1 by guys 9. Extending through:

the uprights of the mast 8 and inclining'upwardly is the way 10 for the skip receptacle or dump car 11, the travel of which car along the way 10in transporting material 1s cont-rolledby the prime mover 7.

Freely swinging'outward from the frame 2 and over the lowerend of the way 10, is

the boom 12, pivotally mounted on the bar 13' in the mast 8. This boom has extending from near its outer free end, the guy 14. with divided sections 15 continuous over guides 16 on' the mast 8, to the after guy sections 17 which pass over the guide 18 carried by the boom 12, to be engaged by Specification of Letters Patent.

travels alongthe boom 12.

' Patented Aug. 20,1912.

Serial No. 539,047.

the rod 19, adjusted by the block 20. These divided or A-guys permit the boom to antomatically assume medial position down wardly inclined over the way 10, if clumpmg is to be into the skip car 11 instead of into vehicles or I other receptacles coming under the boom 12. The angle of this inclination. of the boom 12 is readily varied from the single adjusting block 20, owing to the guys being continuous. While normally'the boom assumes the medial position, it is free to swing laterally, due to the form of guys adopted. It is to be further noted that the three point bearing, has one of the points disposedcentrally of the mast 8. The single point of the bearing under the mast proper permits the free rocking of the mast. to vertical position instead of tilting to some inclined position which the forward portion of the base may assume. This operationis insuredby the guys 9.

Carried'bytheframe 2 is the prime mover 21, which through drum 22 controls the guide line 23, extending over guide 24t in the mast 8,

through guide 25 of bucket 26 to the remote section 26. Upwardly extending from the forward end of the bucket body 26 are the standards 35 for the guides 31, while from the rearward end of the bucket body 26 rise the standards 36 for the guides 25, 32.

Longitudinally extending along the under side of the body 26 are the vanes 37 serving to guide the bucket in its drag travel, as well as to score or loosen the material in order that it may more freely be gathered into the bucket in the subsequent bucket travels. The third drum 38, actuated by the prime mover 21, actuates drag line 39, extending through the movable guide block 40 to the adjustable connection 41 with the dumping bucket section 34:. The bucket section 34; is normally held in material retaining position as to the bucket section 26, by the latch 44, as the block 40 The lower end of the boom'12 has a deflected portion 42 serving as a stop to limit the downward travel of the block 40 along the way 43 of the boom. Accordingly as the drag line 39 man 27 to the dumping or inner telescopic section 34 of the bucket having the body hauls the assembled bucket sections toward the boom 12, the readily deflected boom, will be actuated by the block 40 to swing into line with the approaching bucket, and point between the upright standards 35, 36, as the bucket rides onto the boom. Guide rollers 31 and 32 roll along the top rib of the-boom- 12, While the bucket pushes the block 40 up the guide or way 43.

As the bucket latch 44 rides against the cam 45, the pivoted member 46 is lifted against the action ofits weight 47, which weight 47 normally holds the notch 48 of the member 46 riding on the pin 49 in the boom 12. The continued. travel of the bucket brings the bar 50 to-move against the cam 45, as the incline 51 of the member 46 coacts with the upwardly curved face 52 of the latch 44 as it rides past. Bar 50 now riding against the curved face 53 of the member 46, and aided by the action of the weight 47, forces the extension of the member 46 including the incline 51, into the opening 54 in the latch 44, while the latch is lifted by the incline 52 riding up the incline 55, thus resulting in a retaining device automatically operated, to maintain the body section 26 in held position.

The lifting action of the trip 55 releases the latch 44 from the bar 56 on the dumping section 34, so that continued actuation of the line 39 drags the dumping section through the body section 26 to effectively expel all material from the bucket. This automatic dumping, as well as elevating of the bucket is effectively accomplished by simple and ordinary manipulation of the single drag line 39. During this drag operation for filling and elevating aswell as dumping into the skip 11 for still further removal from the place excavated, the return line 29 has been running freely, while the guide line 23 may be controlled to pay out, take up slack, or still further shortened to have the bucket swing free of the material between the dead-man 27 and the mast 8, as desired.

With the bucket dumped, the drag line 39 is slacked, this of itself being effective to start the downward travel of the section 84. However for maximum speed in handling, thereby working the mechanism for greatest possible output, the return line 29 may accelerate the travel of section 34. As latch bar 56 goes back, it is guided by incline 57, to strike cam face 58 of the member 46, which action forces the member 46 out of the retaining position in the latch 44, thus allowing the latch to be forced by this cam face 58 into holding relation with the bar 56, thus locking the bucket sections assembled as they travel down the boom 12. The outward limit of travel of the section 34 as to the section 26 is limited by the stops 59 on the section 26.

All connections to the bucket are within the normal bucket width, thus permitting of close lateral working for clean removal of material, a feature of considerable value in many instances not only in time but in labor expense. Even without adjusting the frame to swing laterally on its bearings, the device has considerable range of action, for the boom 12 may, owing to its short bearing on rod 13 and to equalizing guys 15, 17, swing quite a little out of line tonose into and lift the approaching loaded bucket. As the approach line of the bucket is lowered, owing to the removal of material, the boom 12 may be adjusted to incline down farther to properly receive the bucket. By varying the point of connection of the drag line 39 to the connection 41 the angle of draw of the bucket into the material may be adjusted, so that a shallow cutting occurs, or a cutting of greater depth in the regular filling operation.

What is claimed and it is desired to secure by Letters Patent is:

1. A material handling mechanism comprising a vertically pivoted frame having at one side thereofa pivot bearing, and laterally of the pivot bearing a pair of bearings movable as to the pivot for sustaining the frame as to the pivot bearing, a vertical mast centrally of the pivot bearing point, a boom pivoted to said mast and extending away from said pair of bearings, a drag bucket, bucket actuating means comprising a line coacting with the boom and extending from the boom to the bucket, and a line extending from the bucket and away from the boom, said bucket actuating means being for drawing the bucket toward and from as well as along the boom, and flexible means extending from the boom to the mast to adjust the boom for bucket travel therealong.

2. A material handling mechanism com prising a frame, a bucket, drag and return lines for the bucket, a pivoted member mounted on the frame and provided with means to nose into said bucket toward and from which member said lines are connected to actuate said bucket, bucket guiding and dumping means carried by the member, and a controlling device for the bucket effective through the drag and return lines to actuate the bucket toward and from the dumping means.

3. A material handling mechanism comprising a frame, an overhanging member mounted thereon and provided with means to nose into and guide a bucket, a bucket guide line, and a drag line bucket movable in filling along said guide line to coact with the guiding means. of the overhanging member;

4. A material handling mechanism comprising a frame, an overhanging pivoted member mounted thereon and movable to nose into a bucket, said overhanging member provided with a guide and a trip, a bucket engageable by said member and movable along said guide to be dumped by the trip, a controlling line guide beyond the member, and a controlling line about the guide to actuate the bucket toward and from the member.

5. A material handling mechanism comprising a frame, an overhanging boom. mounted thereon, said boom movable to nose into a bucket and provided with an inclined guide and a retaining device, a bucket engageable by said boom and movable along said guide to be engaged by the retaining-device, a line guide beyond the boom, and a controlling line for the bucket coacting with the line guide to actuate the bucket from the boom.

6. A material handling mechanism comprising a frame, a boom mounted thereon, said boom movable to nose into a bucket and provided with an inclined guide, a trip and a retaining device, a bucket engageable by said boom and movable along said guide to be held by the retaining device during the dumping of the bucket by the trip, a line guide beyond the boom, and a controlling line for the bucket coacting with the line guide to actuate the bucket from the boom.

7. A material handling mechanism comprising a frame, "a boom mounted thereon, said boom movable to nose into a bucket and provided with a retaining device and a trip, a bucket engageable by said boom and movable to be engaged by the retaining device during the tripping of the bucket for dumping, a line guide beyond the boom, and a controlling line for the bucket coacting with the line guide to actuate the bucket from the boom.

8. A material handling mechanism com prising a frame, an adjustable boom mounted thereon, said boom movable to nose into a bucket and provided with an inclined guide, a bucket having guide coacting means spaced from the bucketbottom to permit bucket travel along the inclined guide engageable by said boom and a line guide beyond the boom, and a control line coacting with the line guide to actuate the bucket from said boom and along said inclined guide.

9. A bucket elevating device comprising a pivotally mounted boom provided with a bucket guide, a drag line for the bucket extending beyond the boom, a return line, a line guide beyond the boom with which said return line coacts, a bucket engaged by the line to be actuated toward the boom and along said guide, and adjusting means for directing the boom into receiving position for the bucket.

10. A material handling mechanism comprising a frame, a bucket, a boom pivotally I mounted on the frame for movement rela tively thereto, a block mounted to slide longitudinally of the boom, said boom provided with a guide to engage the bucket, means on. the bucket for embracing the guide on the boom in its movement along the same and a drag line from the bucket through the block to guide the bucket to the boom, said line drawing the bucket into position for the boom to nose into said means on the bucket and then cause the bucket to ride up the boom guide.

11. A material handling mechanism comprising a frame, a bucket, a boom pivotally mounted on the frame for movement relatively thereto, adjusting means for varying the position of the boom, said boom provided with a guide to engage and lift said bucket, means on the bucket for embracing the guide on the boom in its movement along the same, a block mounted to slide longitudinally of the boom, and a drag line from the bucket and through the block to draw the bucket into position for the boom to nose into said means on the bucket and then cause the bucket to ride up the boom guide.

12. A material handling mechanism comprising a frame, a boom mounted on the frame, said boom being laterally movable and having its free end downwardly extending, a blockreciprocable along said boom, a bucket, and a drag line from the bucket and through the block, to cause the block to deflect the boom in line with the approaching bucket.

13. A material handling mechanism comprising a frame, a boom pivotally mounted on the frame for movement relatively thereto, said boom having its free end downwardly extending, a block mounted to slide longitudinally of the boom, a bucket, a bucket guide on the boom, means on the bucket for embracing the guide on the boom in its movement along the same, and a drag line from the bucket through the block to draw the bucket into position for the boom to nose into said means on the bucket and then cause the bucket to ride up the boom.

14:. A material handling mechanism comprising a frame, a boom pivoted thereto, incline adjusting mechanism for the boom, including a flexible guy permitting lateral movement of the boom, a guide carried by the boom, a bucket movable along the inclined boom, flexible actuating means extending from the bucket and coacting with the guide, and a driving device to which the means is connected to haul the bucket toward the boom.

15. A material handling mechanism comprising a frame, an inclined boom pivoted thereto, guy connections permitting lateral movement of the boom, boom incline adjusting means for the connections, a guide carried by the boom, a bucket movable along the inclined boom, flexible actuating means extending from the bucket and coacting with the guide, and a driving device to which the means is connected to haul the bucket toward the boom.

16. A material handling mechanism comprising a frame, an inclined boom pivoted thereto, incline adjusting mechanism for the boom including a divided forward guy and an after guy having sections continuous with the forward guy, a guide carried by the boom frame, a bucket movable along the inclined boom, flexible actuating means extending from the bucket and coacting with the guide, and a driving device to which the means is connected to haul the bucket toward the boom.

17. A material handling mechanism comprising a frame, an inclined boom pivoted thereto, forward and rear guys from the frame to the boom, boom incline adjusting means for one of the guys to vary the angle of the boom relatively to the frame, a guide carried by the boom, a bucket movable along the inclined boom, flexible actuating means extending from the bucket and coacting with the guide, and a driving device to which the means is connected tohaul the bucket toward the boom.

18. The combination with a sectional bucket of an elevating boom, a bucket section assembling mechanism comprising a retaining device on the boom for a first bucket section having means to stop said section from forward travel and hold said section from backward travel, guiding means on the boom to permit actuation of the bucket sections into assembled material retaining position, said retaining device provided with holding'means for engaging the first bucket section, said second bucket section provided with releasing means coacting with the holding means as the second bucket section comes into assembled position relatively to the first bucket section to disconnect it from the retaining device, and a line operable to assemble said sections.

19. The combination with a guide of a bucket having a releasable body section movable along said guide, there being a dumping section for said bucket, holding means for maintaining said sections assembled, and bucket assembling mechanism comprising stopping means on the guide to engage and trip the holding means to release the sections to permit operation of the dumping section as to the stopping means, said stopping means having return prevention means engaging and holding the body section for re-assembling.

20. The combination with a guide of a sectional bucket movable along said guide, holding means for maintaining said sections assembled, a trip mounted on the guide to release the holding means to free the sections for relative movement by stopping one of the sections, and a bucket assembling mechanism comprising a retaining device on the guide engaging the holding means to thereby hold the stopped section from backward travel relatively to the guide, said device having releasing means operable by relative travel of the section.

21. The combination with a guide having a trip thereon, and bucket assembling mechanism comprising a retaining device, of a bucket having a releasable body section, a dumping section, and holding means for maintaining said sections assembled, said body section movable along said guide to be stopped by the trip as the dumping section is released by the trip, said body section being held from backward travel by the retaining device during the operation of the dumping section, thereby providing a positive holding of the body section when released from the dumping section for subsequent re-assembling.

22. The combination with a guide having a trip and bucket assembling mechanism comprising a retaining device on the guide, of a single working and sectional bucket, holding means for retaining the bucket sections in material retaining position, and a line to one of the bucket sections to actuate the bucket along the guide, said trip having means for disconnecting the section holding means and means for stopping one of the bucket sections independently of the others, said retaining device being provided with means for preventing backward travel of the stopped section to permit reassembling of the sections, said line connected bucket section provided with a release for the retaining device effective to bring about reassembling of the bucket sections on the return movement of the line connected bucket section along the guide to the stopped section.

23. The combination with a guide having a trip and bucket assembling mechanism comprising a retaining device thereon, of a sectional bucket, holding means for maintaining the bucket sections in material retaining position, a line to one of the bucket sections to actuate the bucket along the guide, said trip having bucket section stopping means to free the section holding means and release the sections, said retaining device having means to hold the stopped bucket section from movement along the guide, and a second line coacting with said sections and actuable to move the said sec tions into material retaining position, said line actuated section having means to free the held section from the retaining device in re-assembling.

24. The combination with a mast, and remote from the mast an anchor, of a line extending from the mast to the anchor, a bucket mounted on the line, drag and return lines for the bucket, a movable boom supported by the mast, and a line guide on the boom for the drag line, said boom deflected by the drag line toward the bucket and provided with a guide to lift the bucket.

25. The combination with a mast, and remote from the mast an anchor, of a line extending from the mast to the anchor, adjusting means for the line, a bucket mounted on the line, drag and return lines for the bucket, a movable boom supported by the mast, and a line guide on the boom for the drag line, said boom deflected by the drag 15 CHARLES A. FRAYER.

Witnesses:

GEO. KIRK, GLADYS J AMESON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

It is hereby certified that in Letters Patent No. 1,036,481, granted August 20, 1912, upon the application of Charles A. Frayer, of Toledo, Ohio, for an improvement in Material-Handling Mechanism, an error appears in the printed specification requiring correction as 'follows: Page 4, line 98, for the Word and read and, 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 Patent Oflice.

Signed and sealed this 17th day of September, A. D., 1912.

o. o. BILLINGS,

[SEAL] Acting Commissioner of Patents.

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