Abstract of
GB680253
680,253. Driving auxiliary parts on tractors. BERESFORD & SON, Ltd., J. June 11, 1951 [June 9, 1950], No. 14393/50. Classes 79 (i), 79 (ii) and 79 (iii) A pump unit for fitment to an agricultural tractor comprises a frame 15 adapted to have a three point attachment to the tractor including pivotal connections between the frame and power actuated implement lifting and lowering means 101 of the tractor, the frame supporting a pump 24 having means for coupling its rotor to the power take-off 103 of the tractor. The pump 24 is of the centrifugal type and is driven through a chain and sprocket speed increasing gear 22 from the powertake-off 103. The tractor lifting and lowering arms 101 are hydraulically lifted and lowered through rods 11. The third point of attachment of the frame 15 is a link 12 which is pivotally attached to a resiliently supported bellcrank 13 on the tractor frame. The arms 101 are pivotally connected to trunnions 251 on the pump frame 15 and the link 12 is pivotally attached to a pair of stays 25 on the frame 15. These stays are braced by a third stay 26. The extent to which the frame 15 can be lowered is limited by chains 28 which are attached to eyes on the frames and the upper ends of which are formed by a member 29 which engages one of the teeth of a coxcomb 30 bolted to the link 12. Trays 17 are provided on the frame 15 for reels of delivery hose and jaws 20 are provided for the suction hose. The speed increasing gear is connected to the power take-off of the tractor through universal couplings 105 and an extending shaft 104, 106.
Inventor: STARKE HANS-HELMUT (DE); WIEBEL WALTER (DE)
Applicant: HACOBA TEXTILMASCHINEN (DE)
EC:B65H54/28
IPC: B65H54/28;B65H54/28; (IPC1-7): B65H57/02
Publication info: DE2935620 - 1981-04-16
2
Sternradrechen
Inventor: SHIRER BISLEY ROBIN
Applicant: LELY NV C VAN DER
EC:A01D78/00D
IPC: A01D78/00;A01D78/00
Publication info: DE1292436 - 1969-04-10
Claims
What we claim is:-
1. A pump unit for fitment to an agricultural tractor incorporating a frame adapted to have a three point attachment to an agricultural tractor of the kind aforesaid, said points of attachment including pivotal connections between the frame and the tool and implement lifting and lowering means associated with the tractor, a pump supported by said frame, and means for coupling the rotor of the pump to the power " take off " of the tractor conveniently through the medium of a speed increasing gear.
2. A pump unit according to Claim 1 in which the frame is provided with a pair of trunnions adapted to be engaged in a pivotal relationship with the tool lifting and lowering means of the tractor for constituting two of the points of attachment and in which the frame is provided with an anchorage point for connection to a steadying link constituting the third point of A3 attachment and in which the third point of attachment is associated with the forward end of a longitudinal stay the rear end of which is anchored to the frame.
3. A pump unit according to Claim 1 in which check means is provided for limiting the degree to which the pump unit can be lowered whilst attached to the tractor.
4. A pump unit according to Claim 1 and Claim 2 in which the third point of attachment is provided at the juncture of 45 the forward end of the said longitudinal link and the upper ends of a pair of stays which have a pivotal connection to the sides of the frame at the forward end thereof. 50 5. A pump unit according to Claim 3 in which the check means is in the form of yoked lengths of chain which are anchored at one end to the front of the frame and at the yoked ends to a common anchorage 55 member adapted to be engaged with a coxcomb fixed to the steadying link associated with the tractor.
6. A pump unit for fitment to an agricultural tractor constructed, arranged and 60 adapted for use substantially as described herein and illustrated in the accompanying drawings.
C. L. WILSON, A.M.I. Mech. E., Phoenix Chambers, 84, Colmore Row, Birmingham, 3, and at Tudor House, Bridge Street, Walsall, Staffs.
Agent for Applicants.
PROVISIONAL SPECIFICATION Improvements relating to Pumps.
We, JAMES BERESFORD & SON LIMITFD, of Kitts Green Works, Mackadown Lane, Marston Green, Birmingham, a Company incorporated under the Laws of Great Britain, do hereby declare the nature of this invention to be as follows:This invention has reference to improvements relating to pumps and has for its object to provide a pump unit which can be fitted to an agricultural tractor of the kind which is provided with power actuated lifting and lowering means for the tools and implements, without necessitating any structural alteration thereto and which can be supported from and lifted and lowered by the said tool and impleg8jment lifting and lowering means and incorporating a pump adapted to be driven from the power " take off " of the tractor.
According to the invention the improved pump unit incorporates a frame adapted to have a three point attachment to an agricultural tractor of the kind aforesaid, said points of attachment including pivotal connections between the frame and the tQol and implement lifting and lowering means associated with the tractor, a pump sup- go ported by said frame, and means for coupling the rotor of the pump to the power "take off " of the tractor preferably through the medium of a speed increasing gear. 95 The invention also resides in a pump unit constructed, arranged and adapted for use substantially as will be described hereinafter.
An embodiment of the invention will 100 now be described in its application to a pump unit adapted for use in conjunction with an agricultural tractor of a well known proprietary make which is provided with a pair of rearwardly projecting arms 105 to the outer ends of which the tool carrying bar normally is attached, said arms being adapted to be lifted and lowered through the agency of hydraulic means and which is provided also at the rear 110 with a fixed centrally disposed anchorage fork.
According to the said embodiment of the 680,253 invention the improved pump unit incorporates a frame which is fabricated from metal plate and which is of a substantially triangular shape in plan with the apex 6 directed to the rear.
Mounted within the frame at the forward end is a speed increasing gear, preferably of the chain and sprocket type, the input shaft of which is adapted to be connected to the power " take off " of the tractor through a universal coupling of known proprietary make.
The output shaft of the speed increasing gear is coupled through a flexible coupling to the rotor of a self priming centrifugal pump of the multi-stage type.
At the front end the frame has eonnection to the lower ends of a pair of stays which incline upwardly and inwardly and which meet at their upper ends, said stays being referred to hereinafter as the transverse stays.
At their place of juncture these transverse stays are attached to the forward end of a longitudinally arranged stay hereinafter termed the longitudinal stay, the one end of which is anchored to the centre of a bracing member connected to the sides of the frame adjacent to the rear thereof, whilst the other end is adapted to be connected to the transverse stays at the common place of juncture.
At the said common place of juncture, there is provided a fork provided with a 36 pair of oppositely disposed holes whereby the said fork can be connected to an eye associated with a bracing link through the medium of a hinge pin, the other end of which is hingedly connected to the fixed anchorage point at the rear of the tractor also through the medium of a hinge pin.
The front of the frame preferably coincident with the lower ends of the transverse stays is formed with which are adapted to be engaged in pivotal association the rear end of the tool and implement lifting and lowering arms associated with the tractor.
The frame is provided around the outerside with positioning and supporting means for the suction length of hose and provision is made also for mounting two or more lengths of delivery hose at the sides of the unit.
The inlet and outlet orifices of the pump are provided with the usual screw cap and instantaneous plug for sealing the said orifices when required.
As the pump unit is adapted to be attached directly to and to be lifted and 60 lowered by the usual tool and implement lifting and lowering means incorporated with the tractor, it is not necessary for the pump unit to be provided with wheels although for convenience when the pump 65 unit is not in use the frame may with advantage be adapted to be supported on wheels or rollers when resting on the ground.
It will be appreciated that the three 70 point attachment of the pump unit to the tractor permits the said pump unit to be attached to the tool and implement lifting and lowering arms of the tractor and to the central anchorage point of the tractor in a manner similar to that adopted in the case of the agricultural tools and implements designed for use with the tractor in question.
In addition it will be appreciated that 80 as the pump is adapted to be driven from the power "take off " of the tractor, a separate power unit for the pump is not required.
Moreover it should be appreciated that 85 a pump unit constructed in accordance with the invention is particularly suited to the use in isolated countries where a higher output is required than is possible with the ordinary self-contained pumping 90 unit and it may be stated that in the case of the embodiment of the invention described, the proprietary make of tractor incorporates an engine which develops some eighteen horsepower and the pump unit a 95 five stage centrifugal pump and that with this combination the unit is capable of an output of six thousand gallons an hour at a delivery pressure of 100 lb. to the square inch. 100 Although in the embodiment of the invention, the pump unit has been described as applied to an agricultural tractor of known proprietary make, it is to be understood that the pump unit can be used with 105 agricultural tractors of other proprietary makes provided that such tractors are equipped with lifting and lowering arms analogous to the lifting and lowering arms referred to in connection with the particular agricultural tractor in association with which the invention has been described.
C. L. WILSON, A.M.I. Mech. E., Phoenix Chambers, 84, Colmore Row, Birmingham, 3, and at Tudor House, Bridge Street, Walsall, Staffs.
Agent for Applicants.
Printed for Her Majesty's Stationery Office by Wickes & Andrews, Ltd., E.C.4. 39/244.-1952.
Published at The Patent Office, 25, Southampton Buildings, London, W.C.2, from which copies may be obtained.
Description
PATENT SPECIFICATION
Inventor: BERNARD COOKSLEY.
Date of filing Complete k\ g H aSpecification: June 11, 1951.
Application Date: June 9, 1950.
Complete Specification Published: Oct. I, 1952.
Index it acceptance:-Classes 79(i), A3k; 79(ii), Cole: and 79(iii), A10.
COMPLETE SPECIFICATION.
Improvements relating to Pumps.
We, JAmES BERESFORD & SON LImiTED, of Kitts Green Works, MIackadown Lane, Marston Green, Birmingham, a Company incorporated under the Laws of Great Britain, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statea0ment:This invention has reference to improvements relating to pumps and has for its object to provide a pump unit which can be fitted to an agricultural tractor of the 15kind which is provided with power actuated lifting and lowering means for the tools and implements, without necessitating any structural alteration thereto and which can be supported from and lifted 20and lowered by the said tool and implement lifting and lowering means and incorporating a pump adapted to be driven from the power " take off " of the tractor.
According to the invention the improved pump unit for fitment to an agricultural tractor incorporates a frame adapted to have a three point attachment to an agricultural tractor of the kind aforesaid, said points of attachment including pivotal connections between the frame and the tool and implement lifting and lowering means associated with the tractor, a pump supported by said frame and means for coupling the rotor of the pump to the power 35" take off " of the tractor conveniently through the medium of a speed increasing gear.
The invention also resides in a pump unit constructed, arranged and adapted 40for use substantially as will be described hereinafter.
An embodiment of the invention will now be described with particular reference to the accompanying drawings which illus45trate the invention in its application to a pump unit adapted for use in conjunction with an agricultural tractor of a well known proprietary make.
f Price 2/81 680,253 No. 14393150.
In the drawings:Fig. 1 is a view mainly in side elevation 50 illustrating the pump unit attached to the tractor, sufficient only of the tractor being indicated as is necessary to an understanding of the invention whilst part of the pump unit is broken away where desirable 55 for the sake of clearness; Fig. 2 is a perspective view of the pump unit illustrated in Fig. 1 looking from the front; Fig. 3 is a perspective view of the pump 60 unit illustrated in Fig. 1 looking from the rear; Fig. 4 is a plan of the pump unit as illustrated in Figs. 1-3; Fig. 5 is a plan of the frame of the 65 pump unit illustrated in Figs. 1-4; and Fig. 6 is a front end view of the frame illustrated in Fig. 5.
In the drawings like numerals of reference indicate similar parts in the several 70 views.
As the agricultural tractor indicated in the drawings is of a well known proprietary make it will suffice to say that the said tractor incorporates:- 75 (1) a pair of rearwardly projecting arms 101 which are pivoted at their forward ends to the tractor frame and which are arranged one on each side of the tractor 10, 80 (2) hydraulic means operating through connecting rods 11 for effecting a lifting and lowering of the said arms 101, (3) a link 12 which is pivoted to one arm 85 of a bell crank lever 13 which is pivoted to the tractor frame and which is associated with a spring damped shock absorbing link 14, said link 12 being termed henceforth the 90 steadying link 12.
According to, the illustrated embodiment of the invention the improved pump unit incorporates a frame 15 which is fabricated from metal plate and angles said 95 frame 15 incorporating sides and a rear 680,253 end constituted by a length of metal plate bent to a substantially U-shape in plan with the curved end directed to the rear.
The sides of the frame are intercon5nected by cross members 16 as and where required.
Secured to the sides on the outside are trays 17 which serve for the reception of lengths of delivery hose 18.
Arranged adjacent to each end of a tray 17 is an upstanding flange member 19 the flanges of which serve to prevent endwise movement of the stored reels of delivery hose 18.
Secured to the flanged members 19 aforesaid are jawed members 20 which in conjunction with a similar jawed member which is supported by a strip metal strap 21 fixed to and projecting from the 20rear end of frame -15, - serve to carry lengths of suction hose 201.
Molnted within the frame at the forward end is a water cooled speed increasing gear 22, preferably of the chain and sprocket type, the input shaft 221 of which is adapted to be connected to the power "take off " shaft 103 of the tractor through a rod 104 in conjunction with universal couplings 105 of known pro30prietary make, said rod 104 being slidable within a sleeve 106 associated with the front universal coupling 105.
The output shaft 222 of the speed increasing gear is coupled through a flexible coupling 23 to the rotor of a self priming centrifugal pump 24 of the multi-stage type.
At the front end the frame 15 is provided with a pair of oppositely projecting trunnions 251 on which are pivotally mounted the lower ends of a pair of stays which incline upwardly and inwardly and which are in close proximity at their upper ends, said stays 25 being referred 45to hereinafter as the transverse stays 25.
At their upper ends these transverse stays 25 are attached to the forward end of a longitudinally arranged stay 26, hereinafter termed the longitudinal stay 26, SOthe one end of which is anchored to the centre of a cross member 16 connected to the sides of the frame adjacent to the rear thereof, whilst the other end is adapted to be connected to the transverse says at the 55common place of juncture.
The upper ends of the transverse stays constitute a fork the limbs of which are adapted to embrace the rear end of the aforesaid link 12 and are provided with 60oppositely disposed holes whereby the said stays 25 can be connected to the eyed end of the link 12 through the medium of a hinge pin 27.
The trunnions 251 are adapted to be en65gaged in pivotal association with the rear ends of the lifting and lowering arms 101 associated with the tractor 10.
The inlet and outlet orifices 241, 242 respectively of the pump 24 are provided with the usual screw cap and instantaneous plug for sealing the said orifices when required.
Secured to eyes 153 at the front end of the frame are lengths of chain 28 the upper ends of which are yoked to a 75 common anchorage member 29, having a transverse pin 291 which is adapted to be engaged with the-tooth of a coxcomb 30 bolted to the link 12.
As the pump unit is adapted to be 80 attached directly to and to be lifted and lowered by the usual tool and implement lifting and lowering arms 101 incorporated with the tractor, it is not necessary for the pump unit to be provided with 85 wheels although for convenience when the pump unit is not in use the frame may with advantage be-adapted to be supported on wheels or rollers when resting on the ground and in this connection it should go be pointed out that when the unit is attached to the tractor the transverse pin 291 is engaged with the coxcomb 30 so as, in conjunction with the check chains 28, to limit the degree of lowering movement 95 permitted to the pump unit when the arms 101 are lowered.
It will be appreciated that the three point attachment of the pump unit to the tractor permits the said pump unit to be 100 attached to the tool and implement lifting and lowering arms 101 -of the tractor and to the central anchorage point of the tractor in a manner similar to that adopted in the case of agricultural tools and implements designed for use with the tractor in question.
In addition it will be appreciated that as the pump is adapted to be driven from the power "take off " shaft 103 of the 110 tractor, a separate power unit for the pump is not required.
Moreover it should be appreciated that a pump unit constructed in accordajce with the invention is particularly suited 115 to the use in isolated countries where a higher output is required than is possible with the ordinary self-contained pumping unit and it may be stated that in the case of the embodiment of the invention described, the proprietary make of tractor incorporates an engine which develops some eighteen horsepower and the pump unit a five stage centrifugal pump and that with this combination the unit is cap- 129 able of an output of six thousand gallons an hour at a delivery pressure of 100 lb.
to the square inch.
Although in the embodiment of the invention the pump unit has been described 130 680,253 as applied to an agricultural tractor of known proprietary make, it is to be understood that the pump unit can be used with agricultural tractors of other proprietary makes provided that such tractors are equipped with lifting and lowering arms analogous to the lifting and lowering arms 101 referred to in connection with the particular agricultural tractor in association with which the invention has been described.
