US1404515A - Clamshell bucket - Google Patents

Clamshell bucket Download PDF

Info

Publication number
US1404515A
US1404515A US446668A US44666821A US1404515A US 1404515 A US1404515 A US 1404515A US 446668 A US446668 A US 446668A US 44666821 A US44666821 A US 44666821A US 1404515 A US1404515 A US 1404515A
Authority
US
United States
Prior art keywords
bucket
cable
carriage
frame
dog
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US446668A
Inventor
Ferry Daniel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US446668A priority Critical patent/US1404515A/en
Application granted granted Critical
Publication of US1404515A publication Critical patent/US1404515A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/06Grabs actuated by a single rope or chain
    • B66C3/10Grabs actuated by a single rope or chain and having buckets opening automatically upon the grab being lowered on to the dump of material

Definitions

  • My invention relates to clam shell buckets.
  • the object of my invention is to provide a simple and eflicient bucket of this character which is operated by a single rope, thereby doing away with the complicated mechanism ordinarily heretofore employed in operating buckets of this character.
  • Fig. 1 is aside sectional elevation of my improved bucket, showing the bucket halves open and the parts in position to close the bucket by the lifting of the cable;
  • Fig. 2 is a like view showing the bucket halves closed;
  • Fig. 8 is a like view showing the locking dog released so that on the lifting of the cable the bucket halves will'open; and
  • Fig. 41 is a like view showing the halves open to release the load.
  • the numeral 2 designates a suitable frame with the downwardly eX tending arms 3 which are pivotallv connected to the bucket halves 4 at 5.
  • the guide frame 6 With the vertical extending slot or guide 7.
  • the shroud 8 Secured to the lower end of the guide. frame 6 is the shroud 8.
  • Passing through said shroud 8 is the shaft 9 which is connected up to the bucket halves by the straps 10 pivotally connected to the ends of said shaft which are rounded, although the main portion of said shaft is square.
  • the rod 11 extending transversely of said shroud and parallel to the shaft 9.
  • the locking dog 15 mounteded on a. pin 14 on the carriage 12 is the locking dog 15, said lockin dog having the hook portion 16 which is a apted to engage the pin 11..
  • the dog 15' has the weighted portion 17 which tends to throw the book 16 into engagement with the pin 11 under normal conditions.
  • the locking dog 15 has the arm 18 which is in the path of move- Specification of Letters Patent.
  • the sheaves 21 around which the cable 22 passes are secured to the bars 23 on the frame 2.
  • the loop portion 2a of the cable 22 passes up through an opening in the upper end of the guide frame 6 en gaging the idle friction rollers 25 to relieve the wear; on said cable when the frame swings.
  • the loop 24 engages the pulley 26 in the pulley block 27 to which the main opcrating cable 28 is secured.
  • the lower end of the carriage 12 has the semi-circular recess 29 formed therein which engages the pin 11, there being a certain amount of play between said pin and said carriage. so that when said carriage is lowered slightly the hook portion 16 of the dog 15 will be lowered below the center .of said pin to permit the disengagement of said hook by the weight 19.
  • the slight lowering of the cable 28 will lower the carriage 12 until space 30 is taken up, as shown in Fig. 3, whereupon the weight 19 acts to throw the dog out of looking engagement with the pin 11.
  • the bucket In the operation of my improved bucket where it is desired to lift a load of coal, gravel or other material, the bucket is low cred, as shown, into the position shown in 1 Fig. 4 until the bucket halves come in contact with the material to be lifted, whcreupon by lowering on the cable 28 the carriage '12 is lowered to the position indicated in Fig. 1 with the hook 16 of the dog 15 engaging the pin 11. An upward movement is then applied to the cable 28 and the carriage 12 is lifted, and at the sametime the guide frame 6 rises and the bucket halves are gradually closed until they assume the position indicated in Fig. 2 with the material contained therein.
  • the bucket is then moved to the unloading position, whereupon the cable 28 is lowered until the bucket rests upon the pile of material orthe ground, as indicated in Fig. 3, whereupon by lowering slightly on the cable 28 the carriage 12 is lowered until it rests upon the pin 11, as shown in Fig. 3, which lowers the hood beyond the central point of the pin 11, while at the same time the weight 19, which has been held up by the locking dog 15, is free ing of the bucket halves.
  • a guide-frame connected to saidbucket-halves, a vertical movable carriage on said guide-frame, a cable, connections between said cable and said carriage, a swinging-dog onsaid carriage, an abutment on said carriage with which said 'dog is adapted to engage, and means operative by the lowering of'said cable to release said dog.
  • a clam-shell bucket In a clam-shell bucket, the combination with the frame, of the bucket-halves supported thereby and pivotally mounted foropening and closing, a guide-frame connected to sa1d bucket-halves, a vert1cal movable carriage on'said guide-frame, a cable, connections between said cable and said carriage, a Weighted swinging-dog on said carriage, an abutment on said carriage with which a hook formed on said dog is adapted to engage, and a pivotally mounted weight on said first-named frame in the path of said dog, whereby when said cable is lowcred said weight throws said dog out of engagement with said abutment.
  • a guide-frame connected to said bucket halves, a vertically movable carriageon said guide-frame, a swinging dog on said carriage, an abutment on said carriagewit-h which said dog is adapted to engage, sheaves on said, carriage, a cable passing around said sheaves, the free ends thereof connected to said first-named frame, a cable connected to said first named cable, and means operative by the lowering of said last-named cable to release said dog.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Description

D. FERRY.
CLAMSHELL BUCKET.
APPLICATION FILED FEB. 21. 1921.
Patented Jan. 24, 1922.
2 SHETSSHEET I.
D. FERRY.
CLAMSHELL BUCKET.
APPLICATION FILED FEB-2|. 1921.
Patented Jan. 24, 1922.
2 SHEETS-SHEET 2.
UNITED STATES PATENT OFFICE.
CLAMSHELL BUCKET.
Application filed February 21, 1921.
To all whom it may concern Be it known that I, DANIEL FnrmY, a citizen of the United States, and resident of Pittsburgh, in the county of Allegheny and tate of Pennsylvania, have invented a new and useful Improvement in Clamshell Buckets; and I do hereby declare the following to be a full, clear, and exact description thereof.
My invention relates to clam shell buckets.
The object of my invention is to provide a simple and eflicient bucket of this character which is operated by a single rope, thereby doing away with the complicated mechanism ordinarily heretofore employed in operating buckets of this character.
To these ends my invention comprises the novel features hereinafter set forth and claimed.
In the drawings, Fig. 1 is aside sectional elevation of my improved bucket, showing the bucket halves open and the parts in position to close the bucket by the lifting of the cable; Fig. 2 is a like view showing the bucket halves closed; Fig. 8 is a like view showing the locking dog released so that on the lifting of the cable the bucket halves will'open; and Fig. 41 is a like view showing the halves open to release the load.
In the drawings the numeral 2 designates a suitable frame with the downwardly eX tending arms 3 which are pivotallv connected to the bucket halves 4 at 5. ounted in the frame 2 is the guide frame 6 with the vertical extending slot or guide 7. Secured to the lower end of the guide. frame 6 is the shroud 8. Passing through said shroud 8 is the shaft 9 which is connected up to the bucket halves by the straps 10 pivotally connected to the ends of said shaft which are rounded, although the main portion of said shaft is square.
Mounted within the shroud 8 is the rod 11 extending transversely of said shroud and parallel to the shaft 9.
Mounted in the guide 7 of the guide frame 6 is the carriage 12 throu h which the guide pin 13 passes moving in the guide 7.
Mounted on a. pin 14 on the carriage 12 is the locking dog 15, said lockin dog having the hook portion 16 which is a apted to engage the pin 11.. The dog 15'has the weighted portion 17 which tends to throw the book 16 into engagement with the pin 11 under normal conditions. The locking dog 15 has the arm 18 which is in the path of move- Specification of Letters Patent.
Patented Jan. 24, 1922.
Serial No. 446,668.
ment of the weight 19 pivotally mounted at 20 on the frame 2, said weight acting to re lease said dog from the pin 11 in the manner more fully hereinafter set forth.
Mounted on the carriage 12 are the sheaves 21 around which the cable 22 passes, the free ends of said cable being secured to the bars 23 on the frame 2. The loop portion 2a of the cable 22 passes up through an opening in the upper end of the guide frame 6 en gaging the idle friction rollers 25 to relieve the wear; on said cable when the frame swings. The loop 24 engages the pulley 26 in the pulley block 27 to which the main opcrating cable 28 is secured.
The lower end of the carriage 12 has the semi-circular recess 29 formed therein which engages the pin 11, there being a certain amount of play between said pin and said carriage. so that when said carriage is lowered slightly the hook portion 16 of the dog 15 will be lowered below the center .of said pin to permit the disengagement of said hook by the weight 19. By referring to 2 it will be observed that the slight lowering of the cable 28 will lower the carriage 12 until space 30 is taken up, as shown in Fig. 3, whereupon the weight 19 acts to throw the dog out of looking engagement with the pin 11.
In the operation of my improved bucket where it is desired to lift a load of coal, gravel or other material, the bucket is low cred, as shown, into the position shown in 1 Fig. 4 until the bucket halves come in contact with the material to be lifted, whcreupon by lowering on the cable 28 the carriage '12 is lowered to the position indicated in Fig. 1 with the hook 16 of the dog 15 engaging the pin 11. An upward movement is then applied to the cable 28 and the carriage 12 is lifted, and at the sametime the guide frame 6 rises and the bucket halves are gradually closed until they assume the position indicated in Fig. 2 with the material contained therein. The bucket is then moved to the unloading position, whereupon the cable 28 is lowered until the bucket rests upon the pile of material orthe ground, as indicated in Fig. 3, whereupon by lowering slightly on the cable 28 the carriage 12 is lowered until it rests upon the pin 11, as shown in Fig. 3, which lowers the hood beyond the central point of the pin 11, while at the same time the weight 19, which has been held up by the locking dog 15, is free ing of the bucket halves.
What I claim is:
1. In a clam-shell bucket, the combination with the frame, of the bucket-halves supported thereby and pivotally mounted for opening and closing, a guide-frame connected to saidbucket-halves, a vertical movable carriage on said guide-frame, a cable, connections between said cable and said carriage, a swinging-dog onsaid carriage, an abutment on said carriage with which said 'dog is adapted to engage, and means operative by the lowering of'said cable to release said dog. I
.2. In a clam-shell bucket, the combination with the frame, of the bucket-halves supported thereby and pivotally mounted foropening and closing, a guide-frame connected to sa1d bucket-halves, a vert1cal movable carriage on'said guide-frame, a cable, connections between said cable and said carriage, a Weighted swinging-dog on said carriage, an abutment on said carriage with which a hook formed on said dog is adapted to engage, and a pivotally mounted weight on said first-named frame in the path of said dog, whereby when said cable is lowcred said weight throws said dog out of engagement with said abutment.
3. In aclam-shell bucket, the combination with the frame of the bucket-halves supported thereby and pivotally mounted for opening and closing, a guide-frame connected to said bucket halves, a vertically movable carriageon said guide-frame, a swinging dog on said carriage, an abutment on said carriagewit-h which said dog is adapted to engage, sheaves on said, carriage, a cable passing around said sheaves, the free ends thereof connected to said first-named frame, a cable connected to said first named cable, and means operative by the lowering of said last-named cable to release said dog.
In testimony whereof, I, the said DANIEL FERRY, have hereunto set my hand. f
- DANIEL FERRY.
l Vitnesses: 7
Boer. D. To'r'rnrr, JOHN F, Wren.
US446668A 1921-02-21 1921-02-21 Clamshell bucket Expired - Lifetime US1404515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US446668A US1404515A (en) 1921-02-21 1921-02-21 Clamshell bucket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US446668A US1404515A (en) 1921-02-21 1921-02-21 Clamshell bucket

Publications (1)

Publication Number Publication Date
US1404515A true US1404515A (en) 1922-01-24

Family

ID=23773429

Family Applications (1)

Application Number Title Priority Date Filing Date
US446668A Expired - Lifetime US1404515A (en) 1921-02-21 1921-02-21 Clamshell bucket

Country Status (1)

Country Link
US (1) US1404515A (en)

Similar Documents

Publication Publication Date Title
US1404515A (en) Clamshell bucket
US1494076A (en) Bottom-discharge bucket and the like
US1851923A (en) Tongs
GB183569A (en) Improvements in bottom discharge buckets and the like
US1051994A (en) Loading and unloading apparatus.
GB110990A (en) Improved Skip for Carrying Coal, Coke and other Material.
US870812A (en) Grab-bucket and operating mechanism.
US1376053A (en) Excavating mechanism
US1120440A (en) Grab-bucket.
US524553A (en) Hoisting apparatus
US1995770A (en) Automatic skip hoist
US692417A (en) Dredge or grapple.
US879972A (en) Excavating, hoisting, and conveying bucket.
US1055425A (en) Clam-shell bucket.
US747481A (en) Excavating-bucket.
US882844A (en) Clam-shell bucket.
US582052A (en) Hoisting-bucket
US1416768A (en) Grab
US735571A (en) Automatic dumping device for ore-buckets.
US1538969A (en) Grab
US1168279A (en) Grab-bucket.
US456332A (en) Island
US1989858A (en) Dumping bucket
GB266521A (en) Improvements in or relating to grabs
US1369895A (en) Operating device for automatic gates