baber/WOPTO huggingface dataset:
Patent GB-1502620-A (GB)
Title: Hydraulic system for turning a roll-over plough
IPC: A01B3/421
Filed: 1975-12-05
Abstract: 1502620 Hydraulic control of turnover ploughs E HENGSTLER [trading as ERWIN HENGSTLER FABRIK HYDRAULISCHE HEBEZEUGE] 5 Dec 1975 [28 Dec 1974] 49941/75 Heading A1B A hydraulic control appliance 19 for controlling the inversion of a turn-over plough, is connected to a fluid reservoir 4 and via a single conduit 12 to a hand-operated change-over valve 15 supplied with pressure fluid by a pump 13, movement of the ram piston rod 5 being reversed by means of a reversing valve 23 operated in response to pressure changes brought about by manipulation of the changeover valve 15; at deadcentre when the pressures in the ram chambers 29, 30 are equal, the different piston areas cause the piston to move. Operation: In Fig. 2, the change-over valve 15 has just been moved to position 16 in which pressure fluid is supplied via conduit 12 and a throttle orifice 39 to conduits 27 and 28. When the pressure in the conduits 27and 28 reaches 100 bar, the reversing valve 23 remains closed but a retaining valve 24 is opened by a piston 49 so that as the piston 52 is forced upwards by the fluid in the conduit 28 fluid is forced from cylinder chamber 29 via the opened retaining valve 24, the chamber of the closed reversing valve 23, conduit 25, the opened pressure valve 20, and conduit 26, to the reservoir 4, which comprises nitrogen 35 under pressure acting on a diaphragm 34. When the piston has retracted to its end position corresponding to dead centre 11, the pressure in the conduits 27 and 28 continues to rise until at 130 bar, the reversing valve 23 opens whereupon the pressure valve 20 closes but the retaining valve 24 remains open. The pressures in the cylinder chambers 29, 30 are equal, but the faces of the piston 52 are of different area so that the piston rod is extended as far as a stop to complete the turn-over of the plough. The changeover valve 15 is moved to position 18 briefly, so that the conduit 12, the control appliance 2 and the reservoir 4 are vented to the tank 14. Relaxation of pressure in the conduits 25, 26, 27, 28 causes the retaining valve 24 to close and maintain the high pressure in the cylinder chamber 29, thereby keeping the piston rod 5 fully extended. The reversing valve 23 is now closed, and the reservoir 4 has discharged by opening non-return valve 21 and locking valve 22. The changeover valve 15 is returned to the neutral position 17.
Patent GB-1242503-A (GB)
Title: Improvements in or relating to handling pipes and the like
Inventor: KOOT NICK
IPC: E21B19/14
Filed: 1969-10-14
Abstract: 1,242,503. Boring earth &c. GLOBAL MARINE Inc. 14 Oct., 1969, No. 50468/69. Heading E1F. A rotating end guiding head 38 for kelly and drill pipe joints is moved rearwardly and forwardly by a parallel pair of telescopic assemblies 35, the head being designed and operated so that a joint passing rearwardly between the assemblies into the head may discharge from the head as the head moves forwardly. Each of the assemblies is pivoted to a post 33 and yieldably supported by a post 39 to permit vertical movement of the head whilst the joints are being connected or dis-connected. The assemblies each comprise a tube 41 attached to the head and reciprocable in a tube 40 by means of a chain 53 driven by a common motor 47 to move the head over a rotary table 26. The head has gripping jaws (not shown) mounted on a rotatable hub 79 having passage 97 which may be aligned with the passage between the assemblies. A stand of drill pipe 77 is moved rearwardly along rails 24 by a skate 25 until the rearward end of the stand is over the end of an arm 130. The end of the stand is raised by the arm and the travelling block so that the stand engages a guide frame 23. Further rearward travel of the skate causes the stand to approach the vertical to move along the passage between the assemblies and finally enter the passage 97 in the hub. After the stand enters the passage 97, the head is turned through 90‹ and the tubes 41 extended to permit the stand to be dropped into a mousehole (not shown). The drill string 133 in the rotary table is raised to expose the lower end of the kelly, and the head is engaged with the kelly and the hub is rotated anti-clockwise (or the table is rotated clockwise) to uncouple the kelly from the string. The head is moved over the mousehole, the kelly is dropped or stabbed into engagement with the stand, and the hub is rotated to join the kelly and stand. The kelly and stand are raised in the head, moved over the rotary table, lowered and rotated by the hub to join them to complete the string. The apparatus is mounted on a drilling vessel and may be used to remove pipe from the string.
Patent GB-1443212-A (GB)
Title: Carburettors for internal combustion engines safety control circuit
IPC: F02M1/00
Filed: 1973-10-30
Abstract: 1443212 Spray carburetters SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 30 Oct 1973 [30 Oct 1972] 50472/73 Heading F1B I.C. engine carburetter comprises an induction conduit, a Venturi passage 3, a main fuel supply delivering into the Venturi, a driver controlled throttle valve 2, an auxiliary throttle valve 5 moved by temperature responsive means towards its closed position when the engine is cold and means for temporary enrichment of the air-fuel mixture comprising an auxiliary fuel circuit having an outlet 13 which is downstream of the valve 5 in the closed position thereof and upstream of the valve 5 when it is open, the circuit including closure means 20 controlled by means 15 responsive to the pressure in the induction conduit downstream of the main throttle valve 2 and which close the closure means 20 when the engine is operating at low load and open the closure means when the engine is operating at full load and also including a well 10 connected to the float chamber 4 by a submerged jet 11 and having an air intake passage 28 the delivery end of which is lower than the fuel level in the float chamber, a fuel passage 12 of the auxiliary fuel circuit opening into the bottom portion of the well. Operation. When the engine is cold but operating under load the absolute pressure in the intake pipe is high and spring 19 moves diaphragm 15 and valve-member 20 off its seat and fuel is drawn off at outlet 13 by the depression at the edge of valve 5. Initially only fuel is drawn off to provide a rich mixture for acceleration, but as the fuel level in well 10 falls, air entering through an orifice 29 forms an emulsion with the fuel to weaken the mixture. When the engine temperature exceeds 20‹C the valve 5 opens sufficiently for the outlet 13 to be upstream of the edge of the valve and the only enrichment of the mixture is then due to the choking effect of valve 5 on the main jet system. At partial load with a cold engine, the low absolute pressure downstream of the main throttle valve acts on diaphragm 15 and closes valve 20. When the engine is hot a lever 25 secured to the spindle of valve 5 engages a piston valve 22 and moves it down to close the passage 12.
Patent GB-1082520-A (GB)
Title: Apparatus for use in determining average linear density of textile yarns
Inventor: ANDERSON SAMUEL LESLIE
IPC: G01N33/36
Filed: 1963-12-20
Abstract: In the determination of average linear density of a yarn (i.e weight per unit length or perhaps yarn count) a predetermined length or lengths of specimen yarn(s) is/are wound under tension and as a single, uniformly distributed layer upon a cylindrical drum which is rotated at constant speed with or around an internal, temperature-controlled, electric heater therefor.  The drum is stopped automatically, the yarn(s) severed, and the drum is rotated again for a time sufficient to ensure complete drying of the yarn. The yarn length(s) is/are then removed, as by cutting along the line of a straight groove in the periphery of the drum, and weighed directly on an adjoining device.  From the data thus available, and with an acceptable weight allowance for moisture content, the required density may be calculated.  The operation of an electric motor drive to the drum and a yarn-traversing guide and/or the heating elements is indicated by lamps.
Patent GB-1516869-A (GB)
Title: Laminated panes
IPC: C08L67/00
Filed: 1975-12-10
Abstract: 1516869 Transparent laminated pane with polyester interlayer SAINT-GOBAIN INDUSDUSTRIES 10 Dec 1975 [12 Dec 1974] 50618/75 Heading B5N A laminated sound-insulating age-resistant pane comprises two transparent sheets, e.g. glass, and an intermediate layer formed by copolymerizing (A) a polyester of a polyhydroxy compound, an unsaturated diacid or anhydride thereof, and a saturated aliphatic diacid, (B) 15-25 parts (wt.) per 100 parts polyester of a cross-linking vinyl monomer, e.g. vinyl acetate, and (c) 30-300 p.p.m. of the mixture of a polymerization inhibitor. Suitable components of the polyester and inhibitors are specified, and the resin may include a catalyst, and adhesion promoter and a plastifier. The laminate may be made by pouring the resin between the sheets whilst they are held spaced apart in air and inclined to the vertical, pressing the assembly in a horizontal position, and then subjecting it to thermal treatment.
Patent GB-1075126-A (GB)
Title: Data compression system
IPC: G01S13/90
Filed: 1964-12-14
Abstract: 1,075,126. Doppler radar; bandwidth compression systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 14, 1964 [Dec. 19, 1963], No. 50723/64. Headings H4D and H4R. In a side-looking airborne pulse radar, the rate of change of the Doppler frequency shift in echo signal trains received from a ground target depends, for a given aircraft velocity, on the distance of closest approach of the aircraft to the target and is converted by a signal processing system to a predetermined value such that when the processed signal train is applied to a matched filter a sharp output pulse is obtained from the filter, the degree of conversion required giving a high-resolution indication of target range. Signals from a long range target (13) and a short range target (14) will have time-varying Doppler frequency shifts (AXA<SP>1</SP>) and (BXB<SP>1</SP>) respectively (Figs. 1 and 2). The matched filter may comprise a series of band-pass filters which are connected to respective delay units whose delay times are such that when a signal train with one particular frequency-time slope is applied to the paralleled inputs of the band-pass filters the combined outputs of the delay units provide a sharp pulse. The frequency-time slope of all other received signal trains is converted to this one particular value by recording the echo signals in a data store at a real-time rate and subsequently reading-out the signals from the store to the matched filter at a different rate. An optical storage system (Figs. 3 and 4) is described, in which the echo signals are displayed as bright marks along a linear time-base on a cathode-ray tube (20), the display is photographed on a moving film strip (19), the film is developed, and echo signals are then read off from the film by a flying-spot scanner (23) and photomultiplier (25). The retrieved signals are impressed on a carrier wave to provide a suitable input signal for the matched filter, and the resulting compressed data pulses from the filter are displayed on a further cathode-ray tube 34 (Fig. 6) for visual interpretation. This displayed data may also be recorded if required. The scan rate of the flying-spot scanner (23) required for a maximum output from the matched filter serves to indicate actual target range and is set by a computer 38 which calculates the actual target range from input data representing ground range, aircraft altitude, aircraft velocity, and the aiming angle (which may be varied) of the radar beam with respect to the fore-and-aft axis of the aircraft. In alternative embodiments, the optical storage system may be replaced by a magnetic tape system or an electrostatic storage tube, and the matched filter may comprise dispersive ultrasonic delay lines or " all-pass " filter networks of passive components. The data compression system is stated to be applicable also to the decoding of phase-coded telecommunications signals.
Patent GB-1267787-A (GB)
Title: Metal link chain
Inventor: HEINKE WERNER
IPC: F16G13/08
Filed: 1970-10-26
Abstract: 1,267,787. Chains. GETRIEBEWERK WERNIGERODE VEB. 26 Oct., 1970, No. 50803/70. Heading F2Q. In an all metal link chain, each link comprises a pack 4 of plates or blades 7 contained in a sleeve 5 and disposed in apertures in longitudinal plates 1 which are interconnected by hinge pins 2, and the plates or blades 7 are supported in the direction of movement of the chain by disclike members 15 mounted on the hinge pins 2 and contacting the sleeves 5 of adjacent links. The sleeves 5 are secured against lateral displacement by lugs 6 which engage the plates 1. The blades 7 may be located within the sleeves 5 by apertured plates 9, Fig. 4, or apertured plates 14, Fig. 5. Alternatively, a pin 12, Fig. 7, may pass through slots 12 in the blades 7 and be secured to the sides of sleeve 5.
Patent GB-1366389-A (GB)
Title: Roller for a conveyor belt
IPC: B65G39/02
Filed: 1971-11-03
Abstract: 1366389 Rollers for supporting conveyer belts PRECISMECA GES FUR FORDERTECHNIK mbH 3 Nov 1971 [12 Nov 1970] 51119/71 Heading B8A [Also in Division F2] A conveyer belt roller 1a, 1c comprises an annulus 10 of hard polyurethane foam having a central shaft passage 13 with at its ends enlargements 4 to accommodate bearings 12, seals &c. The annulus 10 may be integral with a surface layer 11 of resilient foam (e.g. polyurethane) which may have integral rings 14 when used as a belt-return roller.
Patent GB-1391813-A (GB)
Title: Accumulator for and method of successively storing wire and  other flexible material
IPC: B65H51/20
Filed: 1972-11-06
Abstract: 1391813 Yarn storing and delivering; accumulator drum BRITISH INSULATED CALLENDERS CABLES Ltd 6 Nov 1973 [6 Nov 1972] 51128/72 Addition to 1191915 Headings D1F and D1J An accumulator for the temporary storage of wire or the like comprises a drum 6 detachably supported on a frame 1 and rotated by drive means 4, 5; a flier 7 mounted on a free end of the drum and driven by the drum via friction means 8 to exert tension in the wire; and an input guide 9 for guiding wire onto the drum; the arrangement being such that when wire passing from a supply to a take-up is caused to pass through the input guide 9, a length of the wire can be wrapped around the drum; and such that at any time whilst the drum 6 is stationary and accumulated wire is being drawn off the drum via the flier 7 the drum with the flier mounted thereon can be removed from the spindle 2 of the supporting frame 1. In the drawing the flier 7 is driven by the drum 6 via a friction coupling 8 in the same direction as but at a slower speed than the drum 6. The guide 9 is traversed by a screw-threaded spindle 3. The driving means may be a variable speed or variable torque motor 5.
Patent GB-1158718-A (GB)
Title: Process for the Manufacture of Modified Polymers of Fatty Acids
IPC: C08G63/66
Filed: 1966-11-16
Abstract: 1,158,718. Modified fatty acid copolymers. ERNST J€GER FABRIK CHEM. ROHSTOFFE G.m.b.H. 16 Nov., 1966 [16 Nov., 1965], No. 51290/66. Heading C3P. A copolymer of an unsaturated fatty acid derived from a drying or semi-drying oil and a vinyl or vinylidene monomer is reacted with a monoepoxy compound having a molecular weight of more than 70 in an amount such that the free carboxyl groups in the polymer are partially or fully reacted with the epoxy groups. Specified acids are those obtained from natural oils e.g. linseed, soya, safflower, wood, fish, castor and tall oils. The comonomer may be styrene, vinyl toluene, methyl styrene, divinyl benzene or (meth)acrylic acid and its derivatives. The monoepoxy compound is e.g. cyclohexene oxide, styrene oxide, a glycidyl ester or ether or epichlorohydrin The hydroxyl groups produced on reaction with the epoxy group may be esterified by carboxyl groups remaining in the copolymer or present in additional compounds. In Example I an oleic acid/linoleic acid mixture is copolymerized with styrene and acrylic acid using benzoyl peroxide as catalyst. The copolymer produced is reacted with 1-n-butoxy-2, 3-epoxypropane and may be reacted subsequently with a polyisocyanate to yield a polyurethane. The epoxy compound used in Example II is cyclohexene oxide and the esterified copolymer is post-esterified and also, if desired, cured by heating. In Example III, castor oil fatty acid is copolymerized with methacrylic acid and vinyl toluene, the copolymer produced being reacted with epichlorhydrin.
Patent GB-1322204-A (GB)
Title: Data storage system
IPC: G11C17/08
Filed: 1970-10-29
Abstract: 1322204 Digital data storage; read only memory LICENTIA PATENT-VERWALTUNGS GmbH 29 Oct 1970 [31 Oct 1969] 51506/70 Headings G4A and G4C A digital data storage system comprises bistable erasable storage elements 11, 13, 14 connected to read lines 41, 42, 51, 52, each correctly functioning element being permanently connected to only one of two lines (i.e. element 11 could be connected to line 41 or 42), the line to which each element is connected to serving as an indication of permanently stored information (i.e. line 41=0, line 42=1). A circuit (Fig. 2) detects this permanent information together with the erasable data in the elements. An element 12 is defective and is either connected to both lines 41, 42, or to neither, which condition is detected and can be used to invalidate the data read out. The store can be thin film, core, or semi-conductors formed as integrated circuits using etching or melting by heating.
Patent GB-519059-A (GB)
Abstract: 519,059. Statistical apparatus. BRITISH TABULATING MACHINE CO., Ltd. (International Business Machines Corporation). June 28, 1938, No. 31899/39. Divided out of 517,067, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 30, 1938. Drawings to Specifications. [Class 106 (i)] The apparatus is that described in Specifications 517,067 but claim is made to the method of recording the data on statistical record cards.
Patent GB-1098649-A (GB)
Title: Workpiece tension and shape control method and apparatus
IPC: B21B37/38
Filed: 1964-12-22
Abstract: 1,098,649. Rolling. WESTINGHOUSE ELECTRIC CORPORATION. Dec. 22, 1964 [Jan. 9, 1964], No. 52030/64. Heading B3M. [Also in Division G3] In a system for automatically controlling the thickness of rolled material at points across its width, a plurality of tension detectors arranged across the width control a plurality of tension adjusters which are also arranged across the width and are each responsive to signals from more than one detector. In one arrangement described, tension in rolled material is detected by five rollers pressing on the material across its width. Signals from, for example, strain gauges associated with these detectors are separately compared with signals representing desired tension and any errors, which may be in digital form, are applied to integrators. The output of each integrator, besides being applied to an indicator, periodically controls, through a limiter, an electric screwdown motor or hydraulic actuator applying force to the rolls at a position corresponding to that of the detector involved. In addition, a proportion of the signal applied to each screwdown device is also applied to adjacent sorewdown devices in such sense as to cancel the effect of the adjustment of the first mentioned screwdown device in adjacent zones. The average of all the error signals is also applied to adjust the speed of the motor driving the rolls in a sense tending to correct the tensions. The overall effect of the controls is to produce a flat sheet of uniform thickness. The error signals are also arranged to control the forces applied at the next roll stand in a multi-stand rolling mill. In another arrangement the signals from different pairs of tension detectors are compared and any differences control the forces and torques applied at appropriate points on the rolls to obtain constant tension across the width of the material. A single tension detector moved in succession to a number of positions across the material may be used instead of a plurality of detectors.
Patent GB-1510766-A (GB)
Title: Shield for use in driving tunnels
IPC: E21D9/087
Filed: 1976-12-15
Abstract: A tunnelling machine, consisting of a cutting head (3) and a drive unit (4), and a conveyor (2) for removing the material as well as a shield-advancing device consisting of pushing cylinders (5) and a thrust ring (6) are accommodated in the tunnelling shield (1). An erector (8) consisting of expandable jaws and a chain hoist is arranged in the shield tail (7) for the rapid and trouble-free shifting of the tubbing (9) forming the tunnel lining. The erector (8) is fastened to an erector arm (15) arranged in a cantilevered manner on the shield casing. The tubbing (9) is raised by the chain hoist of the erector (8); to insert a keystone in the tunnel invert, the erector (8) is lifted while its sliding jaws expand. <IMAGE>
Patent GB-1447385-A (GB)
Title: High energy screed assembly for a paver or the like
IPC: E01C19/48
Filed: 1973-11-12
Abstract: 1447385 Screeds for asphalt parers BARBER-GREENE CO 12 Nov 1973 [21 Nov 1972] 52500/73 Heading E1G A screed 15 for an asphalt parer comprises a screed plate 35, the trailing edge of which is supported by transversely spaced leaf spring assemblies 33 on bracket arms 20 extending from a transverse pivotally mounted tube 16, and the leading edge of which is subjected to vibratory motion by weights 43 eccentrically mounted on a shaft 42 which rotates in bearings fixed to the screed, whereby the degree of vertical vibratory motion decreases from the leading edge of the screed to the trailing edge. The rotation of the eccentric weights causes springs 46 above the leading edge of the screed to be compressed and release of this compression increases the energy of the downward stroke of the vibratory motion of the leading edge. A hand cranking device 26 is provided to adjust the angle of attack of the screed. A strike off plate 18 of adjustable attack angle and a spreader 14 is also provided.