US1443353A - Rope thrusting shovel - Google Patents
Rope thrusting shovel Download PDFInfo
- Publication number
- US1443353A US1443353A US489407A US48940721A US1443353A US 1443353 A US1443353 A US 1443353A US 489407 A US489407 A US 489407A US 48940721 A US48940721 A US 48940721A US 1443353 A US1443353 A US 1443353A
- Authority
- US
- United States
- Prior art keywords
- dipper
- cable
- handle
- support
- hoisting
- 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
Links
Images
Classifications
-
- 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
- E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/304—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with the dipper-arm slidably mounted on the boom
Definitions
- This invention relates tov power excavators, and more particularly, to power shovels' of that type in which the dipper handle ⁇ character of prime mover with which the shovel may be provided.
- Another object is the provision of a novel arrangement ot' parts, whereby the Working tension inftlie dipper hoisting cable may be utilized in effecting a shifting movement of the pivotal support for the dipper handle.
- Another object is the provision of an improved dipper shifting device in which a single cable associated with the prime rnover may be employed .for effecting a shifting of the dipper handle independently of the hoisting action of the hoist gear.
- Another object is the provision of a dipper shifting device that may be operated vand controlledlfrom the hoisting and dragline drums, such as are ordinarily provided in certain types of power excavators.
- Figure 1 is a side elevation ot' a power.
- shovel embodying the novel features ot' the present invention.
- Figure 2 is a detail view on a larger scale of a portionv of. the dipper shifting gear shown in Figure 1.
- Figure 3 is a plan view of a portion of the boom and associated parts.
- Figure 4 is a front elevation of the parts shown in Figure 2. i
- y Figure 5 is a detail Iview of a portion of a dipper handle shifting gear of somewhat dillierent form.
- the shovel selected vfor illustration includes a wheeled truck 10, provided with a turntable 11, supporting a rotatable platform 12 in the usual manner.
- a hoisting Winch 13 is mounted upon the platform 12.
- the hoisting Winch Iis driven fromf. any suitable p'rime mlover (not shown) through an appropriate gearing, a portion of which is shown at 14.
- the hoisting Winch includes a main drum 15 and auxiliary drum 16, such, for instance, as are commonly employed as hoisting and drag-line drums,respectively, in some Well known types of excavators. These drums are mounted for in- (not shown) of any standard or approved construction.y
- auxiliary drum 16 such, for instance, as are commonly employed as hoisting and drag-line drums,respectively, in some Well known types of excavators.
- a boom! 17 is pivotally mounted, as at 18, upon the platform 12.
- the boom 17 pret'- erably comprises a pair of longitudinal channel bars 19 rigidly secured together in spaced relation with their flanges 20 lturned outwardly.
- the boom is supported in the usual manner by-4 the cable 21 and sheaves 22.
- a clipper 23 of standard 'construction is carried by the boom.
- the dipper is provided With the usual dipper handle 24 rigidly connected therewith and mounted for swinging movement about a pivot 25.
- the pivot 25 is in the form of a pin or shaft carried by the carriage 26 of any appropriate construction mounted for Inovement in a suitable guideWa-y 27 secured upon the boom 17.
- the guideway 27 is made up of a pair of'ohannel.
- the present inventio'n has to do with the provision of novel means forv effecting and controlling the shifting of the dipper supporting pivot 25 along the guideway 27 to thus change the position of the dipper and dipper handle relative to t-he boom 1T. plished by the use of novel cable connections between the dipper and dipper handle and the main power unit. This may be ac-l complished in ⁇ various ways.
- a cable 31. end wrapped about the auxiliary drum 16 is connected with the carriage 26, as at 'I his calble is preferably passed over a sheave 33 mounted, asat 34, upon the end of one otl the channel bars 27.
- the a1'- rangement is such that when the cable 31 is drawn in under the action of the drum 16, the carriage 26, together with the pivot 25 and dipper handle 24, is shifted in one direction, preferably inwardly.
- Various provisions may be made for opposing the 31 so as to shift the dipper handle 24 in the other direction when this cable is paid out.
- the tension in the dipper hoisting cable 35 is utilized for this purpose.
- the hoisting cable may be arranged in various ii-'ayswith this end in view. In the shovel shown, however, this cable 35 is connected with the hoisting drum 15 in the usual manner and extends from the drum 15 over a sheave 36. preferably mounted adjacent the outer end of the boom 17, through a padlock sheave 37, connected with the.
- the dipper may be readily'shifted to an extreme outward position, such as shown in full line in Figure 1, and such as ⁇ might be required Afor dumping purposes, by merely releasing the drum 16.
- the pivot 25 and dipper are thus advanced in the manner above described. To return the dipper to lower position for a fresh bite, it is only neeessary to release the hoisting drum 15 and to shift the pivot rearwardly it is only necessary to rotate the drum 16 in a clockwise direction.
- the dipper handle 24 is pivotally supported, as at 25, on a carriage 26 reciprocally mounted in the horizontal gnideway 27,
- a drum controlled cable 31 is connected with the' carriage 26 to shift the carriage inwardly along the guideway' when this cablel is drawn in, and the tension in the hoisting cable 35 is utilized to shift the carriage outwardly when cable 3l is paid out.
- the hoisting cable passes over a sheave 38 around a sheave 39 carried by a bracket 40 secured to the carriage and having its end fixed, as at 41, at a fixed point, preferably on the guides 27a.
- the working tension in the hoisting cable 35 tends to shift the carriage and dipper handle outwardly.
- a powershovel the combination with excavating means including a clipper and dipper handle and a pivotal support for said handle movable substantially horizontally, of means actuated bythe weight of said excavating means/to/inove said support in one directiononly in any position of said support, and 'means for /controlling such movement and for moviii/gf said support in the other direction y 4.
- a power shovelA having a dipper and dipper handle, a pivotal support for said handle, a hoisting gear operable to swing said dipper about said support and consti tutii'ig the sole actuating means for shifting said support' in one direction only, in any position thereof, and means for controlling the position of said support.
- a power shovel having a dipper and dipper handle, a pivotal support for said handle, a hoisting gear operable to swing said ldipper about said support and coni stituting the sole actuating means for shitting said support in one direct-ion only, in any position thereof, and means including ,a line of cable for controlling the positiony of said support.
- a power shovel having a dipper and dippei' handle, a pivotal support for said handle, means including a line of cable associated with said dipper and dipper handle adjacent said support for shifting said support in one direction only when said cable is drawn in, and a dipper hoisting cable responsive to a release of tension in said cable for shifting said support in the other direction when said first named cable is paid out.
- a power shovel having a dipper and dipper handle, a pivotal support for ⁇ said handle, means including a line of cable for shiftingsaid support in one direction whenk said line of cable is drawn in, and means including a second line of cable operable by the weight of the dipper in any position of said support for shifting said support in another direction only when said first cable is paid out.
- a power shovel having a dipper andy .or said ⁇ dipper handle, a ypivotal support handle, means including a line of'cable for shifting said support in one direction, and means including a hoisting cable for raising and lowering said dipper and for shifting said support in another direction only, in-v dependently of whether saiddipper is beingl raised or lowered.
- a power shovel having a hoisting drum and an auxiliary drum, a dipper and dipper handle, a pivotal support for said handle.
- a power shovel having a hoisting drum and an auxiliary drum, aV dipper and dipper liandlea pivotal support for said handle, a line of cable connected with said hoisting drum and with said handle adjacent the dipper and support for shifting said support in one direction, and a line of cable connected with said auxiliary drum for shitting said support in another direction.
- a power shovel having a hoisting drum and an auxiliary drum, a dipper and dipper handle, ja. pivotal support for said handle, a line of cable connected with said hoist-ing drum and with said handle adjacent the dipper and support for shifting said support, and a line of cableassociated with said aux'liary drum for controlling the position of' said support.
- a power shovel having a hoisting drum, a dipper and dipper handle, a pivotal support for said handle,- a line of cable connected with said hoisting drum and with said -handle adjacent the dipper and lsupport tor shifting said support, and means for controlling the positionof said support.
- a power shovel having a boom, a dipper and ⁇ dipper handle mounted thereon for swinging and shifting movements, two drums mounted on said boom for rotation in unison, a dipper hoisting cable connected with one of said drums, mea-ns including a cable connected with the other of said drums and associated with said dipper handle through which said handle is biased toward shifting movement in one direction by the tension in said hoisting i;ble and means -ior controlling such shifting movement and toi-.shitting said handle in another directon.
- a power shovel having a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, means lincluding a cable for shitting said handle iu one direction ⁇ means including a cable Jfor shitting said handle in another direction,l
- a dipper hosting cable and a drum having portions ot different ldiameters connected respectively with said hoisting cable and one ot' said other cables whereby the working tension in said hoisting cable is utilized to shift said dipper handle.
- a power shovel having a boom, two interconnected drums of different diameters mounted thereon, a dipper and dipper handle mounted on said boom, for swinging and shitting movements, a dipper hoisting cable connected with the larger of said drums, a. second cable connected with the smaller of said drums and associated with said dipper handle to shift said handle outwardly, and means including a third cable associated with said dipper handle for shifting said handle inwardly.
- a power shovel the combination of ing cable for moving saidD an inclined boom, a dipper and dipper handle, a pivotal support therefor movable transversely of said boom, a dipper hoisting cable for swinging said dipper about said suppor-t and for movin said support in one direction only, independently of the angular relation between said dipper handle and boom,and means for controlling such movement and for moving said support in the other direction.
- a power shovel the combination of a' boom., ⁇ a dipper and dipper handle, a pivotal support therefor movable relative to said boom, meansincludinof a dipper hoistsupport in one direction only, and means operable to move said support in the other direction only but releasable to permit movement of said support under the influence of said hoisting cable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Description
Jan. '30, 1923.
W FERRI S.
THrwsT NG SHOVEL SHEETS-SHEET F r LED AUG MIT TOR/VEK.
Patented Jan. 30, 1923.
UNITED STATES PATENT OFFICE.
WALTER FERRIS, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO BUCYRUS COMPANY, OF
SOUTH MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN. I
ROPE THRUSTING SHOVEL.
Application filed August 3, 1921. Serial No. 489,407.
To all w/Lom- 'zit 'may concern Be it known that I, WALTER Fniuns, a citizen ot' the United States, residing at ltlilwaukee.` in thecounty of Milwaukee and State of lViscon'sin, have invented a certain new and useful Improvement. in Rope Thrusting Shovels, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.
This invention relates tov power excavators, and more particularly, to power shovels' of that type in which the dipper handle` character of prime mover with which the shovel may be provided.
Another object is the provision of a novel arrangement ot' parts, whereby the Working tension inftlie dipper hoisting cable may be utilized in effecting a shifting movement of the pivotal support for the dipper handle.
,Another object is the provision of an improved dipper shifting device in which a single cable associated with the prime rnover may be employed .for effecting a shifting of the dipper handle independently of the hoisting action of the hoist gear.
Another object is the provision of a dipper shifting device that may be operated vand controlledlfrom the hoisting and dragline drums, such as are ordinarily provided in certain types of power excavators.
Other objects and advantages will later appear.
'Two embodiments of the invention are iillustrated in the accompanying drawings,
in. which:
" Figure 1 -is a side elevation ot' a power.
shovel embodying the novel features ot' the present invention.
Figure 2 is a detail view on a larger scale of a portionv of. the dipper shifting gear shown in Figure 1.
Figure 3 is a plan view of a portion of the boom and associated parts.
Figure 4 is a front elevation of the parts shown in Figure 2. i
yFigure 5 is a detail Iview of a portion of a dipper handle shifting gear of somewhat dillierent form.
The shovel selected vfor illustration includes a wheeled truck 10, provided with a turntable 11, supporting a rotatable platform 12 in the usual manner. A hoisting Winch 13 is mounted upon the platform 12. The hoisting Winch Iis driven fromf. any suitable p'rime mlover (not shown) through an appropriate gearing, a portion of which is shown at 14. The hoisting Winch includes a main drum 15 and auxiliary drum 16, such, for instance, as are commonly employed as hoisting and drag-line drums,respectively, in some Well known types of excavators. These drums are mounted for in- (not shown) of any standard or approved construction.y A
A boom! 17 is pivotally mounted, as at 18, upon the platform 12. The boom 17 pret'- erably comprises a pair of longitudinal channel bars 19 rigidly secured together in spaced relation with their flanges 20 lturned outwardly. The boom is supported in the usual manner by-4 the cable 21 and sheaves 22. A clipper 23 of standard 'construction is carried by the boom. The dipper is provided With the usual dipper handle 24 rigidly connected therewith and mounted for swinging movement about a pivot 25. The pivot 25 is in the form of a pin or shaft carried by the carriage 26 of any appropriate construction mounted for Inovement in a suitable guideWa-y 27 secured upon the boom 17. The guideway 27 is made up of a pair of'ohannel. bars 27 extending between and secured to the inner faces of the i iii-limiti@ imi tension in cable channelbars 19. The anges 28 of the bars 27 are arranged to extend inwardly, thus constituting appropriate tracks or runways for the rollers 29 mounted upon and supporting .the carriage 26. In order to increase the strength and rigidity of the channel `bars 27, a cover plate 30 isl preferably employed, secured to the upper flanges 28. The construction and arrangement of parts thus far described is old and well known in the art so that a further or more detailed description thereof is deemed unnecessary.`
As above pointed out, the present inventio'n has to do with the provision of novel means forv effecting and controlling the shifting of the dipper supporting pivot 25 along the guideway 27 to thus change the position of the dipper and dipper handle relative to t-he boom 1T. plished by the use of novel cable connections between the dipper and dipper handle and the main power unit. This may be ac-l complished in `various ways. In the shovel shown, however, a cable 31. end wrapped about the auxiliary drum 16, is connected with the carriage 26, as at 'I his calble is preferably passed over a sheave 33 mounted, asat 34, upon the end of one otl the channel bars 27. The a1'- rangement is such that when the cable 31 is drawn in under the action of the drum 16, the carriage 26, together with the pivot 25 and dipper handle 24, is shifted in one direction, preferably inwardly. Various provisions may be made for opposing the 31 so as to shift the dipper handle 24 in the other direction when this cable is paid out. In this instance. the tension in the dipper hoisting cable 35 is utilized for this purpose. The hoisting cable may be arranged in various ii-'ayswith this end in view. In the shovel shown, however, this cable 35 is connected with the hoisting drum 15 in the usual manner and extends from the drum 15 over a sheave 36. preferably mounted adjacent the outer end of the boom 17, through a padlock sheave 37, connected with the. dipper 23, the other end of'the cable being wrapped about and anchored upon a drum 38. l second drum 38, preferably of smaller diameter than the drum 33, is secured thereto and conneeted with the carriage 26 by means of ai cable 35, having one end connected to the carriage and the other end wrapped about the drum 3S. The cable 35 is thus made to support the dipper and the resulting tension therein is made tovoppose the tension in the cable 31 by reason of the connection of cable 35 with thedipper handle through the medium of the'drums 38 andv 38a the cable'35 v The cable 35, under the action of the hoisting drum 15, performs the usual func! tions of raising and lowering the dipper way 27 AWithout This is accom-,
having one and and swinging the dipper handle about thei 16 and the dipper handle pivot 25 `may be shifted in either direction along the guiderequiring rotation ofthe hoisting drum. may be raised or lowered Vat will by the hoisting drum 15 in the usual manner.
To illustrate the operation of the shovel described, assume that the dipper is in the lower initialdigging position, such as illustrated in dotted lines in Figure 1, and that the drum 16 is lheld by its brake against rotation. Upon rotation of the hoisting drum 15 in a clockwise direction, the hoisting cable 35 is drawn in, the dipper is raised, and the dipper handle swung about the pivot- 25. As long as the drum 16 1s held against rotation. the. carriage 26 and pivot 25 are held against outward move,- ment along the guideway 27. As the digging progresses and it is desired to advance the effective swing of the dipper further into the bank.- this is accomplished by releasing the drum 1G so as to pay out the cable 31 to the desired extent. rlhis permits the carriage 26 and pivot 25 to shift outwardly along the guideway 2i' `under the influence of the tension inthe. cable 35 so that the dipper handle is moved outwardly and the effective swing of the dipper is advanced correspondingly. To return the pivot 25. and hence the dipperhandle., to the inner position, it is only necessary to rotate the drum 16 in a clockwise vdirection so as to draw in the cable 31. This action forces the carriage-X26 and pivot 25 inwardly. against the influence of the tension in the. hoisting cable 35.
Vihen the digging stroke has been completed' and the dipper is clear of the bank, the dipper may be readily'shifted to an extreme outward position, such as shown in full line in Figure 1, and such as `might be required Afor dumping purposes, by merely releasing the drum 16. The pivot 25 and dipper are thus advanced in the manner above described. To return the dipper to lower position for a fresh bite, it is only neeessary to release the hoisting drum 15 and to shift the pivot rearwardly it is only necessary to rotate the drum 16 in a clockwise direction.
In the arrangement shown in Figure 5, the dipper handle 24 is pivotally supported, as at 25, on a carriage 26 reciprocally mounted in the horizontal gnideway 27,
Furthermore, the dipper fixed to the boom 17. As in the shovel above described, a drum controlled cable 31 is connected with the' carriage 26 to shift the carriage inwardly along the guideway' when this cablel is drawn in, and the tension in the hoisting cable 35 is utilized to shift the carriage outwardly when cable 3l is paid out. In this instance, however, the hoisting cable passes over a sheave 38 around a sheave 39 carried by a bracket 40 secured to the carriage and having its end fixed, as at 41, at a fixed point, preferably on the guides 27a. Thus, the working tension in the hoisting cable 35 tends to shift the carriage and dipper handle outwardly. The operation of the shovel, equipped in this manner, is substantially the saine as that above described.
Various changes may be made in the einbodiments of the invention above described, without departing from or sacrificing any of the advantages of the invention as defined in the following claims.
I claim:
l. In a power shovel, the combination of a boom, a dipperfand dipper handle, a pivotal support therefor movable relative to. said boom, a hoisting cable connected adjacent the free end of said handle to swing said handle and adjacent the pivotal support to shift said support, and means for controlling the position of said support relative to the boonr f 2. In a power shovel, the combination of a boom, a dipper and dipper handle, a pivotal support therefor movable relative to said boom, a hoisting cable connected adjacent the free end of said handle to swing said handle and adjacent the pivotal support to shift said support, and means including a line of cable associated with said support for controlling the position of said support.
3. In a powershovel the combination with excavating means including a clipper and dipper handle and a pivotal support for said handle movable substantially horizontally, of means actuated bythe weight of said excavating means/to/inove said support in one directiononly in any position of said support, and 'means for /controlling such movement and for moviii/gf said support in the other direction y 4. A power shovelA having a dipper and dipper handle, a pivotal support for said handle, a hoisting gear operable to swing said dipper about said support and consti tutii'ig the sole actuating means for shifting said support' in one direction only, in any position thereof, and means for controlling the position of said support.
5. A power shovel having a dipper and dipper handle, a pivotal support for said handle, a hoisting gear operable to swing said ldipper about said support and coni stituting the sole actuating means for shitting said support in one direct-ion only, in any position thereof, and means including ,a line of cable for controlling the positiony of said support.
6. A power shovel having a dipper and dippei' handle, a pivotal support for said handle, means including a line of cable associated with said dipper and dipper handle adjacent said support for shifting said support in one direction only when said cable is drawn in, and a dipper hoisting cable responsive to a release of tension in said cable for shifting said support in the other direction when said first named cable is paid out.
7. A power shovel having a dipper and dipper handle, a pivotal support for `said handle, means including a line of cable for shiftingsaid support in one direction whenk said line of cable is drawn in, and means including a second line of cable operable by the weight of the dipper in any position of said support for shifting said support in another direction only when said first cable is paid out.
8. A power shovel having a dipper andy .or said` dipper handle, a ypivotal support handle, means including a line of'cable for shifting said support in one direction, and means including a hoisting cable for raising and lowering said dipper and for shifting said support in another direction only, in-v dependently of whether saiddipper is beingl raised or lowered.
9. A power shovel having a hoisting drum and an auxiliary drum, a dipper and dipper handle, a pivotal support for said handle. a
cable assoc'ated with said dipper handle adi,
jacent said support and adjacent said dipper and connected with said hoistingdrum for raising and lowering said dipper and for named line ofl .lot
shifting said support, and a cable connected i with said auxiliary drum and with said support for controlling the position of said support. v
10. A power shovel having a hoisting drum and an auxiliary drum, aV dipper and dipper liandlea pivotal support for said handle, a line of cable connected with said hoisting drum and with said handle adjacent the dipper and support for shifting said support in one direction, and a line of cable connected with said auxiliary drum for shitting said support in another direction.
1l. A power shovel having a hoisting drum and an auxiliary drum, a dipper and dipper handle, ja. pivotal support for said handle, a line of cable connected with said hoist-ing drum and with said handle adjacent the dipper and support for shifting said support, and a line of cableassociated with said aux'liary drum for controlling the position of' said support.
12; A power shovel having a hoisting drum, a dipper and dipper handle, a pivotal support for said handle,- a line of cable connected with said hoisting drum and with said -handle adjacent the dipper and lsupport tor shifting said support, and means for controlling the positionof said support.
13. A power shovel having a boom, a dipper and `dipper handle mounted thereon for swinging and shifting movements, two drums mounted on said boom for rotation in unison, a dipper hoisting cable connected with one of said drums, mea-ns including a cable connected with the other of said drums and associated with said dipper handle through which said handle is biased toward shifting movement in one direction by the tension in said hoisting i;ble and means -ior controlling such shifting movement and toi-.shitting said handle in another directon. 14. A power shovel having a boom, a dipper and dipper handle mounted thereon for swinging and shifting movements, means lincluding a cable for shitting said handle iu one direction` means including a cable Jfor shitting said handle in another direction,l
a dipper hosting cable, and a drum having portions ot different ldiameters connected respectively with said hoisting cable and one ot' said other cables whereby the working tension in said hoisting cable is utilized to shift said dipper handle.
15. A power shovel having a boom, two interconnected drums of different diameters mounted thereon, a dipper and dipper handle mounted on said boom, for swinging and shitting movements, a dipper hoisting cable connected with the larger of said drums, a. second cable connected with the smaller of said drums and associated with said dipper handle to shift said handle outwardly, and means including a third cable associated with said dipper handle for shifting said handle inwardly.
16. In' a power shovel the combination of ing cable for moving saidD an inclined boom, a dipper and dipper handle, a pivotal support therefor movable transversely of said boom, a dipper hoisting cable for swinging said dipper about said suppor-t and for movin said support in one direction only, independently of the angular relation between said dipper handle and boom,and means for controlling such movement and for moving said support in the other direction.
17. LIn a power shovel the combination of a' boom.,` a dipper and dipper handle, a pivotal support therefor movable relative to said boom, meansincludinof a dipper hoistsupport in one direction only, and means operable to move said support in the other direction only but releasable to permit movement of said support under the influence of said hoisting cable. f
18. In a power shovel the comb'nation of an inclined boom, a dipper and dipper handle, a pivotal support for said handle mounted on saidy boom for substantially horizontalmovement, a dipper hoisting cable, connections between said cable and support for moving said support in one direction only, and means including another cable for shifting said support in another direction.
I 19.- ln a power shovel the combination Vot' an inclined boom, a dipper and dfpperhandle, a pivotal support forsaid handle movable substantially horizontally, a dipper hoisting cable, connections between said cable and said support for moving said support outwardly only, and mea-ns for controlling such movement and for movng said support inwardly. 1
In Witness whereof, l hereunto subscribe my name this 23rd day of July, 1921.-
WALTER FERRIS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US489407A US1443353A (en) | 1921-08-03 | 1921-08-03 | Rope thrusting shovel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US489407A US1443353A (en) | 1921-08-03 | 1921-08-03 | Rope thrusting shovel |
Publications (1)
Publication Number | Publication Date |
---|---|
US1443353A true US1443353A (en) | 1923-01-30 |
Family
ID=23943727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US489407A Expired - Lifetime US1443353A (en) | 1921-08-03 | 1921-08-03 | Rope thrusting shovel |
Country Status (1)
Country | Link |
---|---|
US (1) | US1443353A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3206048A (en) * | 1962-06-05 | 1965-09-14 | Unicovske Strojirny Narodni Po | Shovel excavator |
-
1921
- 1921-08-03 US US489407A patent/US1443353A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3206048A (en) * | 1962-06-05 | 1965-09-14 | Unicovske Strojirny Narodni Po | Shovel excavator |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1443353A (en) | Rope thrusting shovel | |
US1917955A (en) | Excavator apparatus | |
US1457301A (en) | Rope-thrusting shovel | |
US1769991A (en) | Excavating apparatus | |
US2347456A (en) | Instantaneous truck loading shovel | |
US2633649A (en) | Dragline bucket and boom control | |
US1840550A (en) | Back digger swinging dipper type | |
US2267614A (en) | Dragline excavator | |
US1691100A (en) | Dragline arrangement | |
US2036386A (en) | Crane | |
US1857302A (en) | Excavating machine | |
US2498000A (en) | Hoe excavator | |
US2404926A (en) | Earth excavator | |
US1236691A (en) | Excavating-machine. | |
US1611195A (en) | Excavator | |
US1762523A (en) | Excavator trip | |
US2008190A (en) | Bucket excavator and loader | |
US1496976A (en) | Excavating shovel | |
US1891351A (en) | Dipper-stick control for excavating machines | |
US999953A (en) | Excavating-machine. | |
US1529395A (en) | Shoveling machine | |
USRE16022E (en) | Walter ferris | |
US1763617A (en) | Worm-drive crane | |
US1529397A (en) | Shoveling machine | |
US1430297A (en) | Rope-thrusting shovel |