baber/WOPTO huggingface dataset:
Patent GB-1368017-A (GB)
Title: Method and installation for irrigation
IPC: A01G25/06
Filed: 1972-09-05
Abstract: 1368017 Irrigation systems P NIEDERWEMMER 5 Sept 1972 41156/72 Heading A1B Water (e.g. treated sewage) is supplied by surface ducts 1, 2 to an underground irrigation system. The system comprises pipes 3 each provided. with apertures in its lower surface and supported non-horizontally by a gravel layer 11 disposed on an impermeable layer 9 connected to the ducts 1, 2 to form a trough. Openings 12, 14 permit flow of water from the ducts 1, 2 to the gravel layer 11. The fields may be drained of flood water through the irrigation system. The pipes 3 may be of circular, semi-circular or semi-elliptical crosssection. The impermeable layer 9 may be a plastics or fabric sheet, or an emulsion of asphalt, bitumen or resin sprayed onto the soil. The concrete ducts 1, 2 contain valves (56 in Fig. 14) each comprising two slotted plates which are relatively movable to control the flow of water and which aerate the water. The valves may be closed to cause water to overflow the layer 9 and wash and desalt the irrigation zone. Steps may be. provided in the ducts 1, 2 to accommodate a gradient in the ground surface which is terraced. Storage tanks are provided at 57 in Fig. 14 for natural warming of subsoil water. The water may be further aerated by aerators 57 (Fig. 14) each comprising an upright perforated cylinder in which the water falls successively between three troughs having perforated bases. Artificial fertilizers may be introduced into the cylinder through the air holes in it. Mechanically-treated sewage liquid is passed under gravity through a single or double stage aerobic filter comprising filter material such as slag, stone or coke contained in exchangeable units. Hot air is supplied under pressure to the filter. The liquid passes from the filter into a settling tank having apertures in its side through which the purified liquid passes into a surface duct 1 or 2. In Fig. 14, the access roads 49, 50 between the fields, are planted with bushes and trees, and the main supply ducts 51, 52 are connected to the secondary ducts 53, 54 (like ducts 1, 2 in Fig. 1) connected to pipes 55 (like pipes 3 in Fig. 1). The pipes 55 may contain valves. Artificial fertilizers may also be added and their concentrations measured at 58.
Patent GB-1400780-A (GB)
Title: Insulated gate field effect transistors
IPC: H01L29/00
Filed: 1972-09-05
Abstract: 1400780 Semi-conductor devices SONY CORP 5 Sept 1972 [8 Sept 1971] 41162/72 Heading H1K The concentration of charge carriers stored in the gate insulation of an MIS memory element is caused to vary across the width of the channel between elongate p<SP>+</SP> source and drain regions 1, 2 by the application of a bias between elongate N<SP>+</SP> regions 3, 4 which, with the regions 1, 2, define an open-cornered rectangle in the n-type substrate. Charge is stored by the simultaneous application of the bias between regions 3, 4 and of a bias between the gate electrode 8 and the substrate. The polarity of the gate-substrate bias determines the polarity of the stored charge and hence whether the channel functions in the enhancement mode across its entire width with threshold voltage varying as a function of distance across the channel, or in the depletion mode over part of its width and the enhancement mode over the remainder. The electrodes 15, 16 are used only for prebiasing in the writing mode, and hence may require no external connection thereto if the element is permanently to store the same information. For purposes of erasure and rewriting, however, external connections are necessary. For a silicon device the gate structure may be aluminium-aluminium oxidesilicon dioxide, although silicon nitride on silicon dioxide may alternatively be used as the gate insulation. In both cases charge storage occurs at the interface between the two insulating materials. Since the non-uniform distribution of stored charges across the width of the channel region causes the channel width to vary as a function of gate voltage, the device may function as a voltage-variable capacitance. Optionally a further p<SP>+</SP> strip 17 may be located diagonally across the rectangle defined by the regions 1-4, terminating at an electrode 18. The element then effectively presents a variable resistance between the electrode 18 and the source electrode 11, the value of the resistance depending upon the gate voltage. In a modification the single diagonal p <SP>+</SP> strip 17 is replaced by a series of p<SP>+</SP> strips (17a-17e), Fig. 26 (not shown), parallel to the source and drain regions (1, 2) and extending progressively greater distances across the channel region. The conductivity types of the substrate and regions may be reversed.
Patent GB-1149198-A (GB)
Title: Improvements in or relating to compacting presses
IPC: B30B11/02
Filed: 1966-09-15
Abstract: 1,149,198. Compacting powders. CINCINNATI SHAPER CO. 15 Sept., 1966 [28 Oct., 1965], No. 41290/66. Heading B5A. In a multi-platen powder compacting press for producing stepped articles 50 within a die 60 by the compression of a motor driven eccentric actuated upper punch 16, the die 60 is supported in an upper platen 13 and is provided with a lower core punch 18, and with a plurality of telescoped lower dies 61, 62, 63 which are respectively mounted on an intermediate platen 14, a lower platen 15 and the bed of the machine; the platens 13, 14 and 15 are floatingly mounted on heavy guide rods and are supported by fluid pressure so that they float downwardly under the effect of the punch 16 until, at the termination of the compression stroke, the platens 15, 14 are successively halted upon engagement with stop rods 24, 23 respectively whereafter, upon continued descent of platen 13, the stop rods 24, 23 are successively engaged by adjustable rods 26, 25, dependent from platen 13, and simultaneously released from engagement with their respective platens so that the top surfaces of die 62 on platen 15 and then die 61 on platen 14 are successively brought into alignment with the top surface of die 60 and then move together into alignment with the fixed lower punch 63, for ejection of the article 50 after core 18 has been withdrawn by hydraulic actuation. The rods 25, 26 are vertically adjustable to vary the timing and order of the ejection sequence from a pair of cranks (30, 31), (Figs. 4 and 5, not shown) mounted on platen (13) and the rotation whereof, via a pinion drive, rotates pinions 42, 43 in the threaded bores whereof are engaged externally threaded portions of the ejection rods 26, 25. Diametrically opposed pairs of each ejection rod 26, 25 are provided for co-operation with diametrically opposed pairs of the stop rods 24, 23.
Patent GB-1176900-A (GB)
Title: Process for the production of Novel Carbamic Acid Esters
Inventor: GAUB WALTER
IPC: C08G69/42
Filed: 1968-08-29
Abstract: 1,176,900. Carbamic acid esters. FARBENFABRIKEN BAYER A.G. 29 Aug., 1968 [29 Aug., 1967; 23 Feb., 1968; 8 May, 1968; 24 May, 1968], No. 41316/68. Heading C2C. Novel carbamic acid esters of the formula wherein Y is H or alkyl, A and B which may be the same or different, or each H, halogen, NO 2 , C 1-4  alkyl or C 1-4  alkoxy, R is an optionally substituted aliphatic, aralkyl or aryl radical or a heterocyclic radical and m and n are 1 or 2 are prepared by reacting the corresponding amine with a carbonic acid derivative of the formula R-O-CO-D in which D is halogen, -OR<SP>1</SP>, or OCO.OR<SP>2</SP>, R<SP>1</SP> and R<SP>2</SP> may be the same or different from R and have the same range of meaning or R followed by, if desired, subsequent transesterification, or compounds in which R is HOCH 2 CH 2  and o-HO-C 6 H 4 - may also be obtained by reacting the appropriate amine will glycol carbonate or pyrocatechol carbonate. 2 - (Pyrazolyl - (1)) - H - nitrobenzimidazole and 1 - methyl - 2 - (pyrazolyl - (1)) - 5 - nitrobenzimidazole are made by condensing 1,1,3,3- tetramethoxypropane with 2-hydrazino-4-nitrobenzimidazole and 1-methyl-2-hydrazino-5- nitrobenzimidazole respectively. 2 - (4 - Methoxypyrazolyl - (1)) - 5 - nitrobenzimidazole and 2-(3,5-dimethylpyrazolyl-(1))- 5-nitrobenzimidazole are obtained by condensing 2-hydrazino-5-nitrobenzimidazole with 2- methoxy - 3 - dimethylaminoacrolein and acetylacetone respectively. 2 - [Pyrazolyl - (1)) - 4 - aminobenzimidazole, 1 - methyl - 2 - (pyrazolyl - (1)) - 5 - aminobenzimidazole, 2 - (pyrazolyl - (1)) - 5 - aminobenzimidazole, 2 - (4 - (methoxypyrazolyl - (1)) - 5 - aminobenzimidazole, and 2 - (3,5 - dimethylpyrazolyl - (1)) - 5 - aminobenzimidazole are all prepared by the reduction of the corresponding nitro derivatives. Pharmaceutical compositions, effective against worms and fungi and suitable for oral or parenteral administration, contain one or more of the active novel carbamic esters as the active ingredient.
Patent GB-1205264-A (GB)
Title: Improvement in uniformly twisted yarn
IPC: D02G1/02
Filed: 1967-09-11
Abstract: 1,205,264. Spinning and heating yarns. G1JUTSU KENKYU KUMIAI AMAIKIE KENKYUSHO and DAIDO KEORI K.K. 11 Sept., 1967 [16 Sept., 1966 (3)], No: 41369/67. Headings DID and D1F. In a process for producing uniformly twisted yarn, e.g. of wool or nylon, Fig. 2, a cop 4 of yarn 3 to be twisted is rotated and yarn continuously removed therefrom passes through a guide 8 and a false-twisting device 13, thence to delivery rollers 9a, 9c, positioned adjacent thereto, the false-twisting device rotating in the same direction as, and at substantially the same speed or a speed only slightly different from, the cop. The twist effect of the false-twisting device is concentrated between the device and the delivery rollers, whilst sufficient control twist is retained or imparted to the ballooning yarn portion. The yarn may be set, e.g. by heating, directly following the process or the processed yarn may be wound into a cop which is subsequently unwound for a separate setting treatment. Thus, from delivery rollers (30) the yarn may pass through a cylindrical heater (24) into which hot air, steam or a chemical agent is introduced, thence through a second falsetwist device (13a) to wind-up, Fig. 11 (not shown) or the processed yarn is withdrawn from a cop (4a), passes through a guide and a tension compensator, thence through a heater (24) and false-twisting device (13a) to wind-up, Fig. 7 (not shown). The rotating cop may be encased in a cover which rotates therewith and transmits a drive directly to the false-twisting device. A heat-setting device, Fig. 9, comprises a pair of parallel drawing rollers 31, 31a, in a box 27a. In another apparatus, Fig. 14, the yarn passes between driven endless belts 35, 35a, of wire net (whilst setting medium is applied from nozzles 36, 36a) which prevents movement of twist along the length of yarn: similar preventive effect may be achieved by a peripheral wire net cover 38 on a rotating cylinder 37, or by a V-groove in the cylinder
Patent GB-1194680-A (GB)
Title: Improvements in or relating to Heat Exchangers
Inventor: TAYLOR PETER ANTHONY
IPC: F22B1/06
Filed: 1966-09-16
Abstract: 1,194,680. Steam generators. BABCOCK & WILCOX Ltd. 15 Sept., 1967 [16 Sept., 1966], No. 41442/66. Heading F4A. Liquid sodium entering at 11, Fig. 1, flows through the annular space between shell 10 and casing 13 before entering the casing 13 in which it flows over water tubes 25, whereby the liquid sodium is cooled by heat exchange through the wall 13 before contacting the tubes 25. The U-shaped tubes 25 are connected to a tube plate 12 above which is arranged a partitioned chamber forming a water entry chamber 26 and steam collector chamber 27. The liquid sodium flows upwardly through holes 20 in the right hand half of flange 14 and then flows downwardly through limb 18 of chamber 13 and upwardly through limb 19 towards exit nozzle 21, the limbs 18, 19, being separated by a baffle 17. A pocket of inert gas, e.g. argon, is maintained above the level of the sodium in chamber 36 which the sodium enters through tube 23. In Fig. 2, a drum 50 around a central pipe 52 is provided with an inner casing 58 and with an annular baffle 54, U-shaped water tubes 57 being arranged in the annular spaces on opposite sides of the baffle. The sodium entering at 60 flows around the outside of casing 53 before following over the water tubes 57 and escapes through the tube 52.
Patent GB-1015823-A (GB)
Title: Sewing machine driving device
Inventor: GREULICH ROBERT GEORGE
IPC: D05B69/34
Filed: 1964-10-14
Abstract: 1,015,823. Sewing machines. THE SINGER CO. Oct.14, 1964, No. 41990/64. Heading D1G. An arrangement for driving the main shaft of a sewing machine comprises a wheel journalled on said shaft and having pulley means for driving connection with a treadle, a drive element journalled on said shaft and operatively connected to an electric motor carried in the sewing machine, first clutch means for selectively coupling said wheel and drive element, second clutch means for selectively coupling said wheel and shaft, and a pair of handles each shiftable axially of said shaft and operably connected to said first and second clutch means respectively. The arm shaft 14 of a sewing machine is journalled in a bearing 13 and has rigidly secured thereto by a pin 17 a sleeve 18 formed with an inner, counterbalance flange 19. A handwheel 21 has a hub 23 journalled on sleeve 18, a manuallyengageable rim 24, and a pulley portion 25 having a circumferential groove 26 for a treadle-driven belt 33. The outer face of wheel 21 has a dished portion 27 extending into a cylindrical recess 28. The base of the latter abuts a shoulder 30 on a spacing collar 31 on shaft 14, collar 31 abutting sleeve 18 and a nut 32 screwed on the end of shaft 14. An electric motor 40 drives a worm 45 meshing with a worm wheel 46 journalled on hub 26. A spacing disc 48 and a clutch disc 50, journalled on hut 23, enclose a spring 53 one end 54 of which enters aligned holes 55 in wheel 46 and disc 48, and the other end 56 enters a hole in 57 in disc 50 for coupling the latter to wheel 46. A cut-shaped handle 62, slidable in recess 28, carries three clutch pins 60 axially slidable in pulley portion 25 and engaged by respective friction washers 64. When handle 62 is pushed inwards and wheel 21 is simultaneously rotated by hand, the pins 60 enter respective ones of a series of apertures 65 formed in disc 50 to couple wheel 21 with motor 40, uncoupling being effected, for treadle drive, by an outward pull on handle 62. Clutch means selectively coupling wheel 21 with shaft 14 comprise a U-shaped member 70 slidable in axial grooves 16 formed diametrically in shaft 14. The inner ends of member 70 carry radially-directed lugs 75 slidable in slots 76 in collar 31. Inward pressure on a handle 73 on member 70 engages lugs 75 with respective ones of a series of apertures 29 formed in the base of recess 28 for coupling wheel 21 with shaft 14, uncoupling being effected by an outward pull on handle 73. In a modification rim 24 of wheel 21 is removed and handle 62 is enlarged to provide a manually-engagable rim.
Patent GB-1516086-A (GB)
Title: Method of and apparatus for continuously feeding and cutting sheets of material
IPC: B65H37/04
Filed: 1975-06-05
Abstract: 1516086 Joining sheets into webs J E THOMPSON 5 June 1975 [6 March 1974] 42051/73 Heading B8R Individual sheets in an overlapped, butted or spaced relationship, are joined by staples, adhesive tape or hot-melt adhesive to form a web which is fed to cutting presses. As described, sheets of board are separated from a continuously or intermittently raised pile 40 by suckers 44 and are fed on by rollers 45A, 45B. The leading edge of each sheet is registered with the trailing edge of a previously separated sheet which has been joined to the web, such that gaps are provided between the sheets in the web. Heads 41 insert wire stitches between the sheets. Pawls 46 which engage the gaps, and intermittently operated nip rollers 24 register the web with two cutting presses 42, 43 which cut each sheet into a jigsaw puzzle or carton blank. Mechanism 48, 50 trims and packages the finished articles.
Patent GB-1399513-A (GB)
Title: Method and circuit for timing singal derivation from received data
IPC: H04L7/033
Filed: 1972-09-12
Abstract: 1399513 Synchronizing digital data receivers MARTIN MARIETTA CORP 12 Sept 1972 [25 Oct 1971 19 April 1972] 42314/72 Headings H3A and H4P A locally generated clock signal is synchronized with a received data signal by modifying the clock frequency at a first rate of change until synchronization is attained within predetermined limits and thereafter modifying the clock frequency at a second rate or change, less than the first, for stable maintainance of synchronization, the clock frequency being modified in response to the direction of a predetermined bit pattern in the data signal. As described, the arrangement is used in a paging system, in which a receiver clock generator is synchronized with a received data signal by means of a special signal transmitted before the message signal. The special signal consists of twelve zero bits followed by the code 1101 and groups of thirtytwo 0's transmitted alternately. The received data signal is applied to a transition generator 522 which produces an output pulse each time the data signal changes level. During the initial twelve bit "acquisition" state a bi-stable circuit phase detector 526 receives a clock input from clock generator 536, a high level zero signal on line 507 causes all of the pulses from generator 522 to be gated through AND gate 524 to the reset input of bi-stable 526, and both gates 528, 530 are enabled giving rapid acquisition of synchronization. The Q output from bi-stable 526 is thus fed through both gates 528, 530 to integrator 532, 534, 538 which develops a control signal for clock generator 536. Upon recognition of a 1101 code or its complement by a sync pattern detector 600, Fig. 5, the zero signal assumes a low level inhibiting AND gates 561, 568, 570 and enabling AND gate 566. Thereafter the bi-stable 526 is clocked by a signal CL2 derived from divider 542 which is coupled to the clock pulse generator output. Bistable 526 is thus reset on every other transition pulse. In addition gate 528 is inhibited increasing the time constant of the integrator 532, 534, 538, thereby reducing the bandwidth. When the sync pattern detector 600 recognizes a 1101 code, a mode bi-stable 584 and a counter 580 are both reset, and if subsequent codes 20 not appear at the correct location, the counter produces an incorrect count which returns the circuit of Fig. 4 to its acquisition state. In order that circuit should not be returned to the acquisition mode for small changes, the bi-stable 584 may be replaced by an up/down counter (714, Fig. 8, not shown) which prevents return until a predetermined count is reached. Detector 600 also detects the complement of the 1101 code, and if this occurs, indicating 180 degree phase shift, a signal P1C is produced which controls gate 568 so that the bi-stable 552 is reset by D2 and D3 signals derived from divider 542. This changes the timing of resetting of bi-stable 526.
Patent GB-913848-A (GB)
Title: Fluid jet control devices
Inventor: ZALMANZON LEV ABRAMOVICH
IPC: F15C1/08
Filed: 1959-12-15
Abstract: 913,848. Calculating-apparatus. PNEUMOHYDRAULIC AUTOMATIC CONTROL LABORATORY. Dec. 15, 1959, No. 42551/59. Class 106 (1). [Also in Group XXIX] A pneumatic switch, relay or amplifier comprises a power gas jet nozzle 1, Fig. 1, the jet stream from which is normally biased by a boundary layer effect along the surface of an adjacent body 2 but can be diverted therefrom by the application of a control gas jet to a transverse passage 3 in the body 2. A receiving nozzle may be provided for the diverted main jet stream. A second control nozzle 7<SP>1</SP>, Fig. 2, may be provided in addition or in place of the passage 3. In another example the main jet stream is normally received by a capacity chamber until it is diverted by the build-up of pressure in the chamber. In Fig. 6, a bi-stable device is formed by providing a second central nozzle 120, a capacity chamber 11 and a feedback connection 12 from the chamber 11 to a transverse passage in the body 200<SP>1</SP>.
Patent GB-1518389-A (GB)
Title: Sheet checking device
IPC: B65H7/06
Filed: 1976-10-14
Abstract: 1518389 Sheet sensors POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 14 Oct 1976 [21 Oct 1975] 42705/76 Heading B8R A sheet sensor which measures capacitance across a sheet feeding nip and thus detects absence of, or double sheets 9, comprises a transport roller 1 which protrudes through a slot in a feed table (3), Fig. 1 (not shown), and against which an outer annulus 6À2 is urged. The annulus 6À2 is rotatably supported by balls or rollers 6À3 on an inner annulus 6À1 fixed by an insulating ring 5 to a support 4. The inner annulus is connected electrically to suitable circuitry which determines the capacitance between the inner annulus and the earthed transport roller 1.
Patent GB-888820-A (GB)
Title: Improvements in toy train construction
IPC: A63H17/00
Filed: 1959-12-16
Abstract: 888,820. Toy railway cabs. ROSBRO PLASTICS CORPORATION. Dec. 16,1959 [Dec. 26, 1958], No. 42800/59. Class 132(3) [Also in Group XXXII] A car for a toy train has coupling means pivotally connected to an axle unit for motion about a substantially vertical axis, the coupling means being adapted to be releasably connected with a corresponding coupling means on an adjacent car and the connection being at a point between the cars. As shown toy train cars 10, 12 are each formed in one piece of plastics material, e.g. polyethylene, with separately moulded plastics wheels 32, axle units 18, Fig. 5, and coupling links 42, Fig. 6. The axle units have reduced portions 28 on which the wheels are rotatable and rectangular end portions 30 which are retained by lugs 31 in rectangular openings 16 in brackets 14 integral with the car, each axle unit having a projection 22 with a reduced neck 24 on which the coupling link pivots. The parts can be assembled by snapping them into position due to the resilience of the plastics material from which they are made. The coupling link is pivotable within the confines of a slot through which it projects from the car and is rigidly connected with a similar coupling link by interengaging pins 50 and apertures 52, the pin on one of the engaging links pointing upwardly and the pin on the other pointing downwardly, the pivotal mountings of the coupling links to the axle units allowing the cars to follow a curved track. All the wheel and axle assemblies are similar and are interchangeably used on various types of car and on the front or rear thereof. A car simulating an engine may be provided with a battery powered electric motor.