GB1592032A – Stone spreading trailers
– Google Patents
GB1592032A – Stone spreading trailers
– Google Patents
Stone spreading trailers
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Info
Publication number
GB1592032A
GB1592032A
GB194578A
GB194578A
GB1592032A
GB 1592032 A
GB1592032 A
GB 1592032A
GB 194578 A
GB194578 A
GB 194578A
GB 194578 A
GB194578 A
GB 194578A
GB 1592032 A
GB1592032 A
GB 1592032A
Authority
GB
United Kingdom
Prior art keywords
boom
conveyor
trailer
hopper
chassis
Prior art date
1977-01-20
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
Application number
GB194578A
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.)
Doggett P F
Original Assignee
Doggett P F
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.)
1977-01-20
Filing date
1978-01-18
Publication date
1981-07-01
1978-01-18
Application filed by Doggett P F
filed
Critical
Doggett P F
1981-07-01
Publication of GB1592032A
publication
Critical
patent/GB1592032A/en
Status
Expired
legal-status
Critical
Current
Links
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Global Dossier
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Classifications
E—FIXED CONSTRUCTIONS
E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
E02F—DREDGING; SOIL-SHIFTING
E02F5/00—Dredgers or soil-shifting machines for special purposes
E02F5/22—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling
E02F5/223—Dredgers or soil-shifting machines for special purposes for making embankments; for back-filling for back-filling
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
B60P1/36—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using endless chains or belts thereon
Description
(54)IMPROVEMENTS IN OR RELATING TO STONE SPREADING TRAILERS
(71) I, PETER F. DOGGETT, a citizen of the Republic of Ireland, of Grangegeeth,
Slane, County Meath, Republic of Ireland, do hereby declare the invention, for which I pray that a patent may be granted to me, and the method by which it is to be performed to be particularly described in and by the following statement: The present invention relates to improvements in stone spreading trailers and conveyors therefor.
Until now, stone spreading trailers have been provided with short conveyor booms only, which limits the distance from the trailer to which stones can be spread and the height from which they can be spread.
It is an object of the present invention to provide a conveyor for a stone spreading trailer which overcomes these limitations.
According to the invention, a stone spreading trailer comprises a chassis on which is .mounted a hopper having an outlet in a lower
region thereof, a conveyor boom which is
pivotally secured at or adjacent one end
thereof by means of a first pivot to the chassis at a position underneath said hopper outlet and extending transversely of the chassis and substantially at right angles to the lengi- tudinal axis of the chassis, wherein the boom comprises a first lower section and a second upper section which are articulated together by means of a second pivot, a first pair of hydraulically operated, rams connected be- tween said first lower section of the boom and the chassis and operable to swing the b.oom as a whole in a vertical plane about said first pivot, and a second pair of hydraulically operated rams connected between said first lower section and said second upper section of the boom and operable to swing said second upper section about -said second pivot in a vertical plane relative to said first lower section through approximately a right angle between a position in which the two sections are codinear and extend transversely of the trailer-and a position in which the second section is substantially vertical and positioned alongside the hopper. S’uitably the boom ‘as a whole when fully extended is swingable about said first pivot through an angle of at least 30 but preferably 40 to the horizo.ratalJ The conveyor boom carries a conveyor belt extending between two drums rotatably mounted at either end of the boom.The door in the hopper is preferably openeabje and closable by means of a hydraulic ram, The various hydraulic rams may be powered by a pump on the tractor via control valves or by a separate pump powered by the powder take-off shaft of the tractor.
A counterweight is mounted on the chassis of the trailer on the opposite side to that of the boom to counteract the weight of the boom when it is unfolded and extends transversely from the trailer to its fullest extent.
Advantageously, the drive means for the conveyor belt comprises a hydraulic motor which drives the belt via a speed reduction gear. The hydraulic motor is mounted directly on to the casing of the reduction gear,
The invention will now be more particularly described with reference to the accompanying drawings wherein::
Figure 1 is a front view of the trailer with the boom of the conveyor in the folded position for transportation;
Figure 2 is a similar view to that of Figure 1 with the boom of the conveyor filly ex- wended for operation; Figure 3 is a similar view to that of Figure 1 with the boom of the conveyor raised to its maximum height; and
Figure 4 is a diagrammatic drawing of the hydraulic circuits used in the trailer of
Figures 1 to 3.
Referring to Figures 1 to .3 of the drawings, a trailer 1 adapted to be towed by a tractor (not shown) has -a hopper 2 mounted on the chassis 3 of the trailer which is provided with two wheels 4, one on either side of the chassis, for transportation. A conveyor 5 has a boom -comprising a lower short section 6 and a longer upper section 7 and the two sections are articulated at a pivot 8 as to be able to move relative to one another in the same vertical plane.The lower end of the short section 6 is attached to the chassis at a pivot 9 and is able to swing .in a vertical plane transversely of the trailer, Tte pivot 9 is located on the chassis of the trailer in such a position that the lower end of the conveyor is directly underneath an opening 10 in the bottom of the hooper through which stones
stored in the hopper can fall on to the belt 11 of the conveyor. The opening 10 in the hopper may be completely closed or openable to a variable extent by means of a sliding door 12 engaged in grooves secured in the hopper and operated by means of a hydraulic ram 13.
The relative – angular position of the short section 6 and the longer section 7 of the boom of the conveyor may be altered by means of two hydraulic rams 14 the cylinders of which are pivotally mounted at the upper end of and at the side of the short section 7 of the boom and the pistons of which are pivotally mounted at the lower end of the longer section 7.
The height of the boom of the conveyor is adjusted by means of two hydraulic rams 15 located on either side of the short section 6 of the boom at its upper end. The cylinders of the rams 15 are pivotally secured to one side of the chassis of the trailer and the pistons are pivotally secured to the top of the upper end of the short section 6.
A conveyor belt 11 extends along the boom of the conveyor and rotates around a drum
17 rotatably mounted at the upper end of the longer section 7 of the boom and around another drum 18 rotatably mounted at the lower end of the short section 6. The conveyor belt has cleats (not shown) attached to ‘its upper surface which may engage in stones lying on the belt. The conveyor belt 11 is moved by the drum 18 which is powered by means of a hydraulic motor 19 via a reduction gear 20. The motor output shaft is journalled directly on to the input shaft of the reduction gear and the motor is secured by bolts to the casing of the reduction gear. This arrangement is effected by boring a blind axial hole in the input shaft of the reduction gear and inserting the output shaft of the motor therein, the two shafts engaging by means of a key.This arrangement simplifies the mounting of the motor on the reduction gear and eliminates the necessity of using a belt drive between the motor and the reduction gear and consequent alignment required.
A small hopper 21 is mounted at the upper end of the longer section 7 of the boom and
receives stones discharged by the belt as it
rotates round the drum 17. This hopper discharges the stones on to the required location.
As shown in Figure 4 the pipelines carrying
hydraulic fluid to the hydraulic rams are all
led to one location 22 at the front end of the
chassis of the trailer and three control valves
25 are mounted thereon. The control valves
are connected to a hydraulic pump on the tractor by means of flexible hydraulic pipes.
Alternatively, a separate power take-off driven pump may be mounted on the tractor or on the trailer and connected to the control valves by hydraulic pipes.
The trailer operates in the following manner. The trailer is towed to the location where it is to be used with the boom of the conveyor in its folded position as shown in
Figure 1. The two sections of the boom of the conveyor are then aligned by operation of the hydraulic rams 14 the longer section 7 pivoting about the pivot 8 until the end faces 23, 24 of the two sections 6, 7 are in abutment as shown in Figure 2. The height of the conveyor may be adjusted by operation of the hydraulic rams 15, and Figure 3 shows the conveyor raised to its maximum height, the boom elevated to an angle of 40 to the horizontal.The conveyor is moved by means of the hydraulic motor at a suitable speed and the door at the bottom of the hopper opened a suitable distance so that stones stored in the hopper fall on to the conveyor belt and are carried to the hopper 21 at the end of the conveyor boom and are discharged therefrom.
Stones may be loaded into the hopper from another vehicle (not shown). The trailer is towed by means of a tractor at a suitable speed so that stones are distributed along a pipe (for example) located in a trench in the ground as the trailer moves. Cleats secured to the conveyor belt engage in stones lying on the belt and assist in raising the stones especially when the conveyor is raised at a large angle.
A counterweight 16 is mounted on the chassis on the side opposite that of the boom 5.
WHAT I CLAIM IS:
1. A stone spreading trailer comprising a chassis on which is mounted a hopper having an outlet in a lower region thereof, a conveyor boom which is pivotally secured at or adjacent one end thereof by means of a first pivot to the chassis at a position underneath said hopper outlet and extending transversely of the chassis and substantially at right angles to the longitudinal axis of the chassis, wherein the boom comprises a first lower section and a second upper section which are articulated together by means of a second pivot, a first pair of hydraulically operated rams connected between said first lower section of the boom and the chassis and operable to swing the boom as a whole in a vertical plane about said first pivot, and a second pair of hydraulically operated rams connected between said first lower section and said second upper section of the boom and operable to swing said second upper section about said second pivot in a vertical plane relative to said first lower section through approximately a right angle between ‘a’ pb’sition inXwhich the two sections are colinear and extend trans- versely of the trailer and a position in which
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (7)
**WARNING** start of CLMS field may overlap end of DESC **.
located on the chassis of the trailer in such a position that the lower end of the conveyor is directly underneath an opening 10 in the bottom of the hooper through which stones
stored in the hopper can fall on to the belt 11 of the conveyor. The opening 10 in the hopper may be completely closed or openable to a variable extent by means of a sliding door 12 engaged in grooves secured in the hopper and operated by means of a hydraulic ram 13.
The relative – angular position of the short section 6 and the longer section 7 of the boom of the conveyor may be altered by means of two hydraulic rams 14 the cylinders of which are pivotally mounted at the upper end of and at the side of the short section 7 of the boom and the pistons of which are pivotally mounted at the lower end of the longer section 7.
The height of the boom of the conveyor is adjusted by means of two hydraulic rams 15 located on either side of the short section 6 of the boom at its upper end. The cylinders of the rams 15 are pivotally secured to one side of the chassis of the trailer and the pistons are pivotally secured to the top of the upper end of the short section 6.
A conveyor belt 11 extends along the boom of the conveyor and rotates around a drum
17 rotatably mounted at the upper end of the longer section 7 of the boom and around another drum 18 rotatably mounted at the lower end of the short section 6. The conveyor belt has cleats (not shown) attached to ‘its upper surface which may engage in stones lying on the belt. The conveyor belt 11 is moved by the drum 18 which is powered by means of a hydraulic motor 19 via a reduction gear 20. The motor output shaft is journalled directly on to the input shaft of the reduction gear and the motor is secured by bolts to the casing of the reduction gear. This arrangement is effected by boring a blind axial hole in the input shaft of the reduction gear and inserting the output shaft of the motor therein, the two shafts engaging by means of a key.This arrangement simplifies the mounting of the motor on the reduction gear and eliminates the necessity of using a belt drive between the motor and the reduction gear and consequent alignment required.
A small hopper 21 is mounted at the upper end of the longer section 7 of the boom and
receives stones discharged by the belt as it
rotates round the drum 17. This hopper discharges the stones on to the required location.
As shown in Figure 4 the pipelines carrying
hydraulic fluid to the hydraulic rams are all
led to one location 22 at the front end of the
chassis of the trailer and three control valves
25 are mounted thereon. The control valves
are connected to a hydraulic pump on the tractor by means of flexible hydraulic pipes.
Alternatively, a separate power take-off driven pump may be mounted on the tractor or on the trailer and connected to the control valves by hydraulic pipes.
The trailer operates in the following manner. The trailer is towed to the location where it is to be used with the boom of the conveyor in its folded position as shown in
Figure 1. The two sections of the boom of the conveyor are then aligned by operation of the hydraulic rams 14 the longer section 7 pivoting about the pivot 8 until the end faces 23, 24 of the two sections 6, 7 are in abutment as shown in Figure 2. The height of the conveyor may be adjusted by operation of the hydraulic rams 15, and Figure 3 shows the conveyor raised to its maximum height, the boom elevated to an angle of 40 to the horizontal.The conveyor is moved by means of the hydraulic motor at a suitable speed and the door at the bottom of the hopper opened a suitable distance so that stones stored in the hopper fall on to the conveyor belt and are carried to the hopper 21 at the end of the conveyor boom and are discharged therefrom.
Stones may be loaded into the hopper from another vehicle (not shown). The trailer is towed by means of a tractor at a suitable speed so that stones are distributed along a pipe (for example) located in a trench in the ground as the trailer moves. Cleats secured to the conveyor belt engage in stones lying on the belt and assist in raising the stones especially when the conveyor is raised at a large angle.
A counterweight 16 is mounted on the chassis on the side opposite that of the boom 5.
WHAT I CLAIM IS:
1. A stone spreading trailer comprising a chassis on which is mounted a hopper having an outlet in a lower region thereof, a conveyor boom which is pivotally secured at or adjacent one end thereof by means of a first pivot to the chassis at a position underneath said hopper outlet and extending transversely of the chassis and substantially at right angles to the longitudinal axis of the chassis, wherein the boom comprises a first lower section and a second upper section which are articulated together by means of a second pivot, a first pair of hydraulically operated rams connected between said first lower section of the boom and the chassis and operable to swing the boom as a whole in a vertical plane about said first pivot, and a second pair of hydraulically operated rams connected between said first lower section and said second upper section of the boom and operable to swing said second upper section about said second pivot in a vertical plane relative to said first lower section through approximately a right angle between ‘a’ pb’sition inXwhich the two sections are colinear and extend trans- versely of the trailer and a position in which
the second section is substantially vertical and positioned alongside the hopper.
2. A stone spreading trailer as claimed in
Claim 1, wherein the boom as a whole is swingable through an angle of at least 30 to the horizontal.
3. A stone spreading trailer as claimed in
Claim 1, wherein the boom as a whole is swingable through an angle of at least 400 to the horizontal.
4. A stone spreading trailer as claimed in any one of the preceding claims, wherein the boom carries a conveyor belt extending between two drums rotatably mounted at either end of the boom.
5. A stone spreading trailer as claimed in
Claim 4, wherein the drum nearest the chassis is driven by means of a hydraulic motor through a reduction gear, the motor output shaft being journalled directly onto the input shaft of the reduction gear.
6. A stone spreading trailer as claimed in any of the preceding claims, wherein a counter weight is attached to the chassis on the opposite side to that of the boom.
7. A stone spreading trailer substantially as hereinbefore described with reference to
Figures 1 to 3 of the drawings.
GB194578A
1977-01-20
1978-01-18
Stone spreading trailers
Expired
GB1592032A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IE11477A
IE44584B1
(en)
1977-01-20
1977-01-20
Improvements in or relating to stone spreading trailers
Publications (1)
Publication Number
Publication Date
GB1592032A
true
GB1592032A
(en)
1981-07-01
Family
ID=11007159
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB194578A
Expired
GB1592032A
(en)
1977-01-20
1978-01-18
Stone spreading trailers
Country Status (2)
Country
Link
GB
(1)
GB1592032A
(en)
IE
(1)
IE44584B1
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2144393A
(en)
*
1983-08-03
1985-03-06
Balfour Beatty Ltd
Placing material into trenches
US4923359A
(en)
*
1987-10-21
1990-05-08
Stephen Leonard Foster
Extendable boom for belt-conveyor
US5044867A
(en)
*
1990-07-06
1991-09-03
Pettijohn Michael J
Mobile hydraulic conveyor
US5193971A
(en)
*
1992-02-28
1993-03-16
Pettijohn Michael J
Mobile hydraulic conveyor
US5443351A
(en)
*
1992-02-28
1995-08-22
Pettijohn; Michael J.
Mobile hydraulic conveyor
US5782020A
(en)
*
1996-11-13
1998-07-21
Shumaker; L. Wade
Method and equipment for simultaneous excavation and land refill with minimum operating labor
1977
1977-01-20
IE
IE11477A
patent/IE44584B1/en
not_active
IP Right Cessation
1978
1978-01-18
GB
GB194578A
patent/GB1592032A/en
not_active
Expired
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2144393A
(en)
*
1983-08-03
1985-03-06
Balfour Beatty Ltd
Placing material into trenches
US4923359A
(en)
*
1987-10-21
1990-05-08
Stephen Leonard Foster
Extendable boom for belt-conveyor
US5044867A
(en)
*
1990-07-06
1991-09-03
Pettijohn Michael J
Mobile hydraulic conveyor
US5193971A
(en)
*
1992-02-28
1993-03-16
Pettijohn Michael J
Mobile hydraulic conveyor
US5443351A
(en)
*
1992-02-28
1995-08-22
Pettijohn; Michael J.
Mobile hydraulic conveyor
US5782020A
(en)
*
1996-11-13
1998-07-21
Shumaker; L. Wade
Method and equipment for simultaneous excavation and land refill with minimum operating labor
Also Published As
Publication number
Publication date
IE44584L
(en)
1978-07-20
IE44584B1
(en)
1982-01-13
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Legal Events
Date
Code
Title
Description
1981-11-04
PS
Patent sealed
1983-02-09
746
Register noted ‘licences of right’ (sect. 46/1977)
1986-08-28
PCNP
Patent ceased through non-payment of renewal fee
