USRE19979E - Excavating dipper - Google Patents

Excavating dipper Download PDF

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Publication number
USRE19979E
USRE19979E US19979DE USRE19979E US RE19979 E USRE19979 E US RE19979E US 19979D E US19979D E US 19979DE US RE19979 E USRE19979 E US RE19979E
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United States
Prior art keywords
door
dipper
hinges
main body
upwardly
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
    • E02F3/4075—Dump doors; Control thereof

Definitions

  • My invention relates to new and useful im-" provements in excavating dippers, and more particularly to that type of excavating dipper which is mounted on the end of a handle or handles carried by a power shovel.
  • the shovel possesses mechanism for imparting both swinging ,and thrusting movements to the handle or handles, and hence to the dipper.
  • the main body of such a dipper is normally of a substantially cubical form, open at the top and bottom.
  • the handles are aihxed' to one side of the dipper, called the "back.
  • the opposite side of the dipper, called the "front, carries at its upper edge a digging lip and/or a row of dig ing teeth.
  • the bottom opening of the dipper is closed by a door, hinged at the back of the dipper, and latched at the front.
  • Figure 1 is a plan view of the door of my dipper, showing in section the rear portion of the hinges and the latch-keeper on the dipper proper. This view is taken along the line
  • Figure 2 is a lateral vertical section, taken along the line 2-2 of Figure 1.
  • Figure 3 is a longitudinal vertical section, taken along the line 33 of Figure 1.
  • H is the main body of the dipper proper.
  • dipper proper carries, on its back, lugs ii (of portion of the hinges lying to the rear of the door, is much shorter than in the conventional construction of the prior art.
  • the door carries the conventional latch l8, and the dipper proper carries the conventional latch-keeper l9, both of which may be of any well-known form.
  • the door may be provided with stiffening ribs 20; but, by virtue of the shape of the door, these m y be smaller and fewer than would otherwise berequired. 2
  • a main body having a back, two sides and a s5 front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a substantially flat bottom portion, a back portiontangent thereto and curving gradually upwardly therefrom, and side portions tangent to 1' therefrom, said side portions being less and less high as they approach the front of the door; combined hinges and stiffening ribs, extending beneath a portion of the bottom of the door; and pivots for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
  • a main body having a back, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear
  • a bottom door having a bottom portion substantially perpendicular to the front of the main body, a back portion curving gradually upwardly from the bottom portion, and side'portions curving gradually upward- I 1y from the bottom portion, said side portions being less and less high as they approach the front of the door; hinges extending beneath a portion of the bottom of the door; and pivots for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
  • a main body having a back, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a bottom portion, a back portion sloping gently upwardly from the bottom portion, so as to eliminate a substantial part of the lower rear door, and pivots'for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
  • a main body having aback, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear
  • a bottom door having a substantially flat bottom portion substantially perpendicular to the front of the main body, and having back and side portions curving upwardly to meet the back and sides of the main body
  • combined hinges and stiffening ribs extending beneath a portion of the bottom of the door
  • pivots for the hinges carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
  • a main body having a back, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear
  • a bottom door having a bottom portion substantially perpendicular to the front of the main body, and having back and side portions curving upwardly to meet the back and sides of the main body; hinges, extending beneath a portion of the bottom of the door;
  • main body having a back, two sides and a front, V
  • a bottom door having its rear portion sloping gently upwardly with respect to its forward portion, so as to eliminate a substantial part of the lower rear comer, of the dipper and having its side edges so sloped as to register with the edges of the sides of the main body; hinges, extending beneath a portion of the bottom of the door; and pivots for the hinges, car- 'ried by the back of the main body, closely adjacent the juncture of this back with the back of the door.
  • a door for an excavating dipper having: a bottom portion; a back portion, curving gradually upwardly from the bottom'portion; side portions, curving gradually upwardly from the bottom portion, said side portions being less and less high as they approach the front of the door; and hinges, extending beneath a portion of the bottom of the door, said hinges having their pivot points closely adjacent the upper edge of the rear portion of the door; the door being so' shaped, and the hingepivots sopositioned that the edges of juncture of the door to the dipper to which it is applied will slope upwardly from front to rear.
  • adoor for an-excavatingdipper having: a bottom portion; a back portion, sloping gently upwardly from.
  • said hinges having their pivot points closelyadjacent the upper edge of the rear portion of the door, the door being so shaped and the hinge-pivots so positioned that the edges of the juncture of the door to the dipper to which it is applied will-slope upwardly from front to rear.
  • a bottom dump door for an excavating dipper having its rear portion sloping gently upwardly with respect to its forward portion, so as to eliminate a substantial part of the lower rear corner of the dipper, and having hinges extending beneath a portion of the bottom of the door, said ,hinges having their pivot points closely adjacent the upper edge of the rear portion of the door; the door being so shaped, and the hinge-pivots so positioned, that the edges of the juncture of the door to the dipper to which it' is applied will slope upwardly from front to rear.
  • a bottom dump door for an excavating dipper having its rear portion sloping gently upwardly with respect to its forward portion, so as to eliminate a substantial part of the lower rear corner of the dipper, and having hinges conforming to the rear portion of the door, said hinges having their pivot points closely adjacent the upper edge of the rear portion of the door; the door being so shaped, and the hinge-pivots so positioned, that the edges of the juncture of the door to the dipper to which it is applied will slope upwardly from front to rear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Description

W. M. BAGER EXCAVATING DIPPER Original Filed April 26, 1954 May 26, 1936.
y Alforneys;
'Re'iuued May 26, 1936 a EXCAVATING DIPPER.
' William M. Bagel, Fox Point, Wilt, asalgnor to Bucyrus-Erle Company.
South Milwaukee,
Wis., a corporation of Delaware Original No. 2,018,628, dated October 22, 1935, SerlaiNo. 722,424, April 26, 1934. Application for reissue November 16; 1935, Serial No; 50,401
11 Claims.
My invention relates to new and useful im-" provements in excavating dippers, and more particularly to that type of excavating dipper which is mounted on the end of a handle or handles carried by a power shovel. The shovel possesses mechanism for imparting both swinging ,and thrusting movements to the handle or handles, and hence to the dipper.
The main body of such a dipper is normally of a substantially cubical form, open at the top and bottom. The handles are aihxed' to one side of the dipper, called the "back. The opposite side of the dipper, called the "front, carries at its upper edge a digging lip and/or a row of dig ing teeth.
The bottom opening of the dipper is closed by a door, hinged at the back of the dipper, and latched at the front.
It is the principal object of my invention to improve the construction of this door, and of the cooperating parts of the dipper proper.
In order for the door to swing clear of the lower opening of the dipper, it is necessary for the hinges to be pivoted well up on the back of the dipper, but this introduces two objectionable features, namely: (1) the hinge is weakened by the necessity of having a long portion. of the hinge extending from its pivot to its point 0! attachment to the door; and (2) this long portion interferes ,with' the dipper handle and dipper handle end casting when the debt swings open.
Furthermore I have found that, with the use of the conventional flat door in digging in sticky material, the door on opening merely breaks away from the bottom of the sticky material without dislodging'the material from the dipper proper; whereas, if the door he built up to contain some of the material, the exit of the material is started by. the opening of the door. And the provision of side walls on the door serves to direct and concentrate the fall of the material, instead of permitting it to scatter.
- However, if these side walls Join the bottom of the doorat an abrupt angle and/or ii' they extend clear to the open end of the door, they impede the dumping. Still furthermore, I have found that, for grading work, it is important to eliminate a substantial portion of the lower rear corner edge of the dipper, for the two purposes of 'eliminating'deadspace and of permitting the drawing back of the dipper close to the boom to start a grading cut.
7 With these eonsiderationsin mind, it is my object to attain the above-described advantages,
while avoiding the above-described disadvantages In addition to my principal object, ,1 have worked out a number of novel and useful details,
- which one embodiment is exemplified in the accompanying drawing, which is hereinafter particularly described and explained.
Throughout the description, the same reference number is applied to the same member or to similar members.
Figure 1 is a plan view of the door of my dipper, showing in section the rear portion of the hinges and the latch-keeper on the dipper proper. This view is taken along the line |--l of Figure 3.
Figure 2 is a lateral vertical section, taken along the line 2-2 of Figure 1.
Figure 3 is a longitudinal vertical section, taken along the line 33 of Figure 1.
Referring to the drawing, it will'be seen that H is the main body of the dipper proper. The
dipper proper carries, on its back, lugs ii (of portion of the hinges lying to the rear of the door, is much shorter than in the conventional construction of the prior art.
The door ,carries the conventional latch l8, and the dipper proper carries the conventional latch-keeper l9, both of which may be of any well-known form.
The door may be provided with stiffening ribs 20; but, by virtue of the shape of the door, these m y be smaller and fewer than would otherwise berequired. 2
Having now described and illustrated one form of my invention, I wish it to be understood that my invention is not to be limited to the specific form or arrangement of parts hereinbefore described, exceptdnsofar as such limitations are specified in the appended. claims.
I claim: 1
1. In an excavating dipper, the combination of: a main body, having a back, two sides and a s5 front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a substantially flat bottom portion, a back portiontangent thereto and curving gradually upwardly therefrom, and side portions tangent to 1' therefrom, said side portions being less and less high as they approach the front of the door; combined hinges and stiffening ribs, extending beneath a portion of the bottom of the door; and pivots for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
2. In an excavating dipper, the combination of g a main body, having a back, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a bottom portion substantially perpendicular to the front of the main body, a back portion curving gradually upwardly from the bottom portion, and side'portions curving gradually upward- I 1y from the bottom portion, said side portions being less and less high as they approach the front of the door; hinges extending beneath a portion of the bottom of the door; and pivots for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
3. In an excavating dipper, the combination of a main body, having a back, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a bottom portion, a back portion sloping gently upwardly from the bottom portion, so as to eliminate a substantial part of the lower rear door, and pivots'for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
4. In an excavating dipper, the combination of: a main body, having aback, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a substantially flat bottom portion substantially perpendicular to the front of the main body, and having back and side portions curving upwardly to meet the back and sides of the main body; combined hinges and stiffening ribs, extending beneath a portion of the bottom of the door; and pivots for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
5. In an excavating dipper, the combination of: a main body, having a back, two sides and a front, the bottom edges of the sides sloping upwardly from front to rear; a bottom door, having a bottom portion substantially perpendicular to the front of the main body, and having back and side portions curving upwardly to meet the back and sides of the main body; hinges, extending beneath a portion of the bottom of the door;.
from the outside, and having its side edges so portion of the bottom of the door; and pivots for the hinges, carried by the back of the main body closely adjacent the juncture of this back with the back of the door.
7. In an excavating dipper, the combination of:
a main body, having a back, two sides and a front, V
the bottom edges of the sides sloping upwardly from front to rear; a bottom door having its rear portion sloping gently upwardly with respect to its forward portion, so as to eliminate a substantial part of the lower rear comer, of the dipper and having its side edges so sloped as to register with the edges of the sides of the main body; hinges, extending beneath a portion of the bottom of the door; and pivots for the hinges, car- 'ried by the back of the main body, closely adjacent the juncture of this back with the back of the door. l
8. As a separate article of manufacture, a door for an excavating dipper, having: a bottom portion; a back portion, curving gradually upwardly from the bottom'portion; side portions, curving gradually upwardly from the bottom portion, said side portions being less and less high as they approach the front of the door; and hinges, extending beneath a portion of the bottom of the door, said hinges having their pivot points closely adjacent the upper edge of the rear portion of the door; the door being so' shaped, and the hingepivots sopositioned that the edges of juncture of the door to the dipper to which it is applied will slope upwardly from front to rear.
9. As a separate article of manufacture, adoor for an-excavatingdipper having: a bottom portion; a back portion, sloping gently upwardly from.
the bottom portion so as to eliminate a substanof the bottom. of the door, said hinges having their pivot points closelyadjacent the upper edge of the rear portion of the door, the door being so shaped and the hinge-pivots so positioned that the edges of the juncture of the door to the dipper to which it is applied will-slope upwardly from front to rear. 10. As a separate article of manufacture, a bottom dump door for an excavating dipper, having its rear portion sloping gently upwardly with respect to its forward portion, so as to eliminate a substantial part of the lower rear corner of the dipper, and having hinges extending beneath a portion of the bottom of the door, said ,hinges having their pivot points closely adjacent the upper edge of the rear portion of the door; the door being so shaped, and the hinge-pivots so positioned, that the edges of the juncture of the door to the dipper to which it' is applied will slope upwardly from front to rear. I
11. As a separate article of manufacture, a bottom dump door for an excavating dipper, having its rear portion sloping gently upwardly with respect to its forward portion, so as to eliminate a substantial part of the lower rear corner of the dipper, and having hinges conforming to the rear portion of the door, said hinges having their pivot points closely adjacent the upper edge of the rear portion of the door; the door being so shaped, and the hinge-pivots so positioned, that the edges of the juncture of the door to the dipper to which it is applied will slope upwardly from front to rear.
US19979D Excavating dipper Expired USRE19979E (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815958A (en) * 1996-12-30 1998-10-06 The Frog, Switch & Manufacturing Co. Excavator dipper latch assembly having removable tapered latch bar
US20110094130A1 (en) * 2007-12-12 2011-04-28 Swift Assets Pty Ltd. Excavator bucket
US10113293B2 (en) 2012-09-05 2018-10-30 Esco Group Llc Bucket for cable shovel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815958A (en) * 1996-12-30 1998-10-06 The Frog, Switch & Manufacturing Co. Excavator dipper latch assembly having removable tapered latch bar
US20110094130A1 (en) * 2007-12-12 2011-04-28 Swift Assets Pty Ltd. Excavator bucket
US8707589B2 (en) * 2007-12-12 2014-04-29 Esco Engineering Pty. Ltd. Excavator bucket
US10113293B2 (en) 2012-09-05 2018-10-30 Esco Group Llc Bucket for cable shovel

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