baber/WOPTO huggingface dataset:
Patent GB-435699-A (GB)
Abstract: 435,699. Regulating delivery of reciprocating pumps. SWINSON, E. A. S., 73, Upper Newtownards Road, Belfast. March 15, 1934, No. 8153. [Class 102 (i)] [See also Group XXIX] A byepass relief valve v<2> for use in connection with the pumps of agricultural spraying machines &c. is actuated by a plunger device d which is isolated from the corrosive liquids used, by two flexible diaphragms x<1>, x<2> adjacent its ends. The plunger is loaded by a spring externally adjustable in a flanged distance piece c, to the ends of which the diaphragms are clamped by a valve head h and a main valve body a respectively. A stainless steel ball valve v<1> seating on a seat of similar material cuts off the passage o leading to the spray guns and the pressure chamber beneath the diaphragm x<2> from the inlet passage s from the pump, when the guns are shut off or the pressure has accumulated in the usual air vessel av sufficiently to cause the nut n connected to the plunger stem y to displace the relief valve v<2> and open the passage p to the overflow w. In a modification, the passage p is replaced by a separate pipe connecting the head hand body a and the air vessel is at a remote point on the discharge passage o.
Patent GB-959334-A (GB)
Title: Improvements in or relating to the manufacture of junction transistors
Inventor: DAVIS BRIAN ANTHONY IVOR
IPC: H01L29/73
Filed: 1961-12-05
Abstract: 959,334. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. Nov. 19, 1962 [Dec. 5, 1961], No. 43588/61. Heading H1K. The collector region of a drift transistor is made in two stages. In the first stage it is diffused to a depth less than that required in the high resistivity face of a wafer having a low resistivity layer on its opposite face. The avalanche breakdown of the collector junction is then measured to determine the distance between the junction and the low-resistivity layer, and the depth of the collector region increased on the basis of this measurement to the desired level. In the embodiment a 20 ohm. cm. N-type germanium wafer 1 extends into a layer 2 of relatively low resistivity material produced by diffusion of antimony into the germanium wafer, and the layer 2 is soldered to the nickel base electrode plate 3. The P- type collector region 5 is obtained by alloying an initially spherical indium pellet into the wafer involving raising the temperature of the wafer to 600‹ C. at a rate of 70‹ C./min. and then allowing to cool. The avalanche breakdown voltage between the P-type region 5 and the nearest surface of the layer 2 is then measured and form an empirically determined relationship the thickness of wafer 1 separating these regions is known. The assembly is then heated under the same conditions as before to a temperature high enough to increase the diffusion of the indium into the wafer to produce the required wafer thickness between the region 5 and the layer 2. The emitter region is then formed by alloying into the wafer a spherical pellet of a alloy of indium and gallium, the process being carried out by raising the temperature of the structure to 450‹ C. at a rate of 50‹ C./min. and then allowing to cool. After a chemical cleaning the structure is encapsulated in a hermetically sealed envelope.
Patent GB-1180062-A (GB)
Title: Improvements in or relating to material-moving bucket machines
Inventor: BRIDEN HORACE
IPC: E02F3/60
Filed: 1966-09-30
Abstract: 1,180,062. Bucket scraping apparatus. H. BRIDEN. 13 Dec., 1967 [30 Sept., 1966], No. 43915/66. Heading E1F. A material-moving machine comprises a bucket having blades 21 which are reciprocated by hydraulic means. The movable blades 21 alternate with fixed blades along the transverse leading edge of the bucket, the two outer movable blades extending outwards at a small angle to provide clearance for the bucket. Each blade 21 is reciprocated by a hydraulic hammer 6 connected to the blade through a member 7 and controlled by a valve 9. Each member 7 has a collar 13 engaging a beam 14 held in position by hydraulic control cylinders disposed on either side of the member 7, whereby when a blade 21 is loaded beyond a predetermined value the pressure in the associated control cylinders will automatically start the hammer 6 connected to that blade. Alternatively, the pressure is shown on a gauge for manual control. The machine may be a dragline excavator.
Patent GB-1140776-A (GB)
Title: 2-phenylimino-2-oxazolidines and their production
Inventor: WOLLWEBER HARTMUND
IPC: C07D263/28
Filed: 1967-09-27
Abstract: 1,140,776. 2-Phenylimino-2-oxazolidine derivatives. FARBENFABRIKEN BAYER A.G. 27 Sept., 1967 [27 Sept., 1966], No. 43999/67. Heading C2C. Novel compounds of formula or salts thereof wherein R is C 1-4  alkyl, C 1-4  alkoxy or halogen, R<SP>1</SP> is C 1-4  alkyl and R<SP>11</SP> is H or one or more of alkyl, alkoxy, acyl, nitro or halogen are prepared (a) by alkylation of the compound of the above formula where R<SP>1</SP> is H or a tautomer thereof; (b) by reaction of an N-alkylethanolamine with a compound of formula or (c) by cyclization of a reactive ester of an alcohol of formula which optionally may be prepared in situ by reaction of an isocyanate with an N-alkylethanolamine then formation of the reactive ester group. 2,6-Dimethylphenyl isocyanide dichloride is prepared by chlorination of the isocyanide.
Patent GB-1261298-A (GB)
Title: Improvements in or relating to torque splitting differentials
IPC: F16H48/22
Filed: 1970-09-15
Abstract: 1,261,298. Differential gearing; driving multiple axles. DANA CORP. 15 Sept., 1970 [15 Sept., 1969], No. 44095/70. Heading B7H. [Also in Division F2] To provide a torque flow greater to the rear axle than to the front axle of a four-wheel drive motor vehicle in which a limited slip bevel differential inter-axle 34 is connected to the rear and front axles (not shown) of the vehicle through respective propeller shafts 54, 56, a multi-disc friction clutch 96, 98 is interposed between the differential casing 42 and a flanged sleeve 97 which is splined to the rear axle propeller shaft and drivingly connected via facial teeth 92, 94 to a bevel side gear 84 whereby in operation equal torques T 1  and T 2  flow to the front and rear propeller shafts 56, 54, in the normal manner by the equal diameter side gears 82, 84 and a further torque flow T 3  is provided at the rear propeller shaft via the friction clutch 96, 98 engaged by the axial thrust generated between the facial teeth 92, 94 of the side gear 84 and flanged sleeve 97, the arrangement thus unequally dividing the input torque within the differential 34 and utilizing the greater torque flow to the rear axle normally having the greater loading thereon. The differential casing 42 is driven via a chain 30 from an output shaft 14 of a shift box (not shown) providing two speeds for the axles of the vehicle.
Patent GB-1313379-A (GB)
Title: Static economizer circuit for power contactors
IPC: H01F7/18
Filed: 1970-09-16
Abstract: 1313379 Transistor switching circuits WESTINGHOUSE ELECTRIC CORP 16 Sept 1970 [24 Oct 1969] 44195/70 Heading H3T In an arrangement wherein the coil 14 of a power contactor is to be maintained energized through an "economy" impedance R6 this impedance is short circuited for a predetermined time for initial energization by a transistor circuit which includes at least two transistors connected regeneratively, and a capacitor and an impedance which together establish the predetermined time. In Fig. 1, when voltage appears on terminals 15, 16 transistor Q1 conducts, turning on Q2 which is back coupled to Q1 via R5 to provide positive feedback and hence rapid saturation of Q1, through which capacitor C is charged. The charging current maintains Q2 on, together with Q3, with which it forms a Darlington pair, and Q3 short circuits R6. Thus, Q3 carries the full energization current for coil 14 until C is fully charged, whereupon it is cut off. A diode CR5 protects the transistors from the inductive voltage surge. If the supply should momentarily fail, C rapidly discharges through diodes CR3, CR4 so that the contactor automatically recloses by repetition of the cycle when the supply is re-established. The capacitor voltage is held at the level of a Zener diode CR1 by a further diode CR2; this makes the arrangement insensitive to small supply fluctuations. CR2 ... CR4 may be omitted. In Fig. 2, the supply turns on transistor 20 which turns off 23, which in turn saturates 20 by feedback connection 27. When 23 is off capacitor 24 is charged from the supply via resistors 29, 30, the charging current turning on Darlington pair 25, 26. Typical components for both circuits are listed.
Patent GB-1152612-A (GB)
Title: Phase Locked Oscillator
IPC: H03B5/24
Filed: 1966-10-04
Abstract: 1,152,612. Automatic frequency control systems; discriminators; pulse modulation circuits. WESTINGHOUSE ELECTRIC CORP. 4 Oct., 1966 [28 Oct., 1965], No. 44295/66. Headings H3A and H4L. An automatic frequency control system wherein the output of a voltage controlled oscillator (16; Fig. 1, not shown) is divided in frequency and compared with the 60-cycle power supply frequency in a frequency and phase discriminator (28 and 30) the outputs of which are combined and fed through a control amplifier (36) to the oscillator (16), is characterized in that the control amplifier includes a feedback network (38) giving it an integrating characteristic so that the system is insensitive to transient frequency and phase changes in the power supply but responds to changes which persist for a number of cycles, e.g. ten cycles. Frequency and phase discriminator, Fig. 3.- The 60-cycle pulses and the 60-cycle power supply are fed to respective grounded emitter transistors 112 and 114 the collectors of which feed the phase and frequency discriminator. The phase discriminator comprises the two diodes 136 and 138; if either transistor conducts the potential at point 142 is zero and if both are non-conductive the point 142 rises to the power supply potential; the mean potential at point 142 is proportional to the phase difference, and is fed through resistance 144 to the input of the control amplifier. Capacitor 150 is discharged through diode 158 when transistor 112 conducts, and charges capacitor 170 when transistor 112 is cut off. Similarly, the equal capacitor 152 is charged by capacitor 170 and discharged through diode 164 when transistor 114 changes states, so the net charge on capacitor 170 is proportional to the frequency difference. Capacitor 170 is coupled through resistance 168 to the high gain D.C. amplifier which comprises a pair of matched transistors 180, 182 feeding a further transistor 188 and an emitter follower output 190. The feedback network 38 comprises a capacitor 174 in series with the parallel combination of capacitor 178 and resistance 176, and in conjunction with the amplifier approximates to an integrator. Pulse modulation circuits, Fig. 2.-The frequency of a unijunction relaxation oscillator 40 depends on the potential applied to the emitter through resistance 64 from terminal 63, and on the setting of potentiometer 52. The oscillator is coupled to a bi-stable circuit 18 feeding a further bi-stable circuit 20 which is triggered by the trailing edge of each half-cycle of the output from circuit 18.
Patent GB-1529195-A (GB)
Title: Coagulation rate method and apparatus
IPC: G01N33/49
Filed: 1975-10-28
Abstract: 1529195 Measuring blood coagulation time GEOMET Inc 28 Oct 1975 44450/75 Heading G1B The coagulation time of a fluid which has been combined with reagent capable of increasing its viscosity, for example of blood previously combined with reagent comprising in lyophilized form thromboplastin, gelatine and to make the composition porous for rapid dissolution, formed silica as an extender, is determined by introducing the fluid into one end of a hollow cylinder, supporting the cylinder so that the fluid moves downwardly and determining the coagulation time from the distance the sample travels before coagulation immobilizes it in the cylinder. The rate of descent may be controlled by means of a limiting orifice at the outlet end of the cylinder as shown or by means of projections on the inner surface of the cylinder or using a porous plug.
Patent GB-1327612-A (GB)
Title: Safety belts
Inventor: MINOLLA H K W
IPC: B60R22/28
Filed: 1970-09-18
Abstract: 1327612 Energy absorbing anchorages for safety belts HUPPAN GmbH 18 Sept 1970 [19 Sept 1969] 44565/70 Heading A3V [Also in Division F2] A safety belt anchorage comprises a housing 1, a rotary element 5 on which the and of a belt 11 is wound, a non-rotary element 8 in screw-threaded engagement with the rotary element, and a plastically deformable component 10. When a pull is exerted on the belt 11 the rotary component 5 rotates and movement along the axis of rotation is caused by the engagement between the screw thread on the non-rotary component 8 and the internal screw thread of the rotary component 5, which tends to compress the deformable component 10. Plastic deformation of the component 10 occurs when the pull on the belt exceeds a predetermined force, and results in the diccipation of kinetic energy. In other embodiments the component 10 may be omitted, the side walls of the housing being instead deformed either towards or away from each other.
Patent GB-919335-A (GB)
Title: Improvements in or relating to solid-electrolyte feed-through capacitors
IPC: H01G9/15
Filed: 1961-12-13
Abstract: 919,335. Capacitors. TELEGRAPH CONDENSER CO. Ltd. Dec. 13, 1961 [Feb. 15, 1961], No. 44605/61. Class 37. A feedthrough capacitor comprises a hollow bolt having a threaded shank 30 with a cupshaped head 22 into which is soldered a dry electrolytic capacitor element 40 wherein a cylindrical anode of anodized sintered tantalum oxide having anode leads 42, 44 is coated with manganese dioxide, a cathode layer of carbon, and a layer of silver 46 united by a layer of solder 54 to the inside of the shank, which is closed by a glass/metal seal having a ring soldered to the shank and an eyelet 38 soldered to the anode lead 44 passing through P.T.F.E. spacers 48. The cup is closed by a further glass/ metal seal 26 in which a peripheral ring 27 is soldered to the inside of the cup and an eyelet 28 is soldered to anode lead 42 passing through other P.T.F.E. spacers 48. The anode lead may be continued through the centre of the capacitor element. A ring of solder 50 is melted to run inside the shank and solder the outside cathode of the capacitor element to the inside of the shank, which may be fixed to a chassis by a threaded nut.
Patent GB-1206762-A (GB)
Title: Metal anode for mercury cathode electrolytic cells
IPC: C25B1/36
Filed: 1967-10-02
Abstract: 1,206,762. Anodes for mercury cathode cells. FARBWEKE HOECHST A. G. Oct. 2, 1967, [Sept. 30, 1966], No.44731/67. Heading C7B. A metal e.g. Ti anode for electrolyzing an alkali metal chloride e.g. brine in a mercury cathode cell comprises in profile a row of U-shaped members, each with one or more slots or holes 5 in the web portion 1 and with terminal portions 3 extending from the end of each flange 2 so that the terminal portions of adjacent members are inclined at obtuse angle e. g. + 120 degrees to - 120 degrees to each other and have a gap or slot 4 between their outer ends for electrolyte circulation. The anode may be shaped from a single metal sheet provided with the necessary holes and slots. The surfaces of the folded portions facing the cathode may be lined with a layer of Pt, Pt-Ir or Ir.
Patent GB-1371717-A (GB)
Title: Kerosene burner
IPC: F23D3/18
Filed: 1972-09-20
Abstract: 1371717 Refrigeration; thermostatic control of wick burner ELECTROLUX Ltd 28 Sept 1972 [7 Oct 1971] 44806/72 Headings F4H and F4T A kerosene burner, particularly for a refrigerator, has a fuel-feeding wick 10 located between guide sleeves 11, 12, Fig. 1, and a thermostat; there being a ring, 21 in Fig. 1, 54 in Fig. 3, disposed above the outer sleeve 12 and about an upper part of the wick 10 and movable up and down relative to the wick and turnable against a restoring force, provided by spring 25, the ring 21 being connected to a sleeve 23 which is rotatable by means 38 connected to the thermostat; and sleeves 12 and 23 having inter-acting camming devices 26, 27 whereby operation of the thermostat rotater sleeve 23 relative to sleeve 12, the camming devices 26, 27 thereby raising or lowering ring 21 relative to wick 10 so that the flame size is automatically varied by the ring 21 in response to the thermostat. The wick 10 is manually adjustable by knob 15 independently of the thermostatic operation of ring 21. Air enters the burner via apertures in a member 18 and flows upwardly outside sleeve 12 and, via aperture 20, inside sleeve 11. A temperature sensor located in the ambient atmosphere or in the refrigerator chamber is connected via a conduit to the thermostat and effects movements of a bellows therein resulting in movement of a connecting cable 38 and thus of the ring 21. The thermostat has a manually-operable adjusting knob. In an alternative construction, Fig. 3, the ring 54 is moved as above but comprises an upper cylindrical part, which is rotatable around a flange 53 on fixed outer guide sleeve 52 and has apertures 57 for air, and an intermediate frustoconical part leading to a lower cylindrical part 61 of larger diameter than the upper cylindrical part so that upward movement of the ring acts to throttle an annular air-passage between the ring and a casing 58. An annular flange (64), Figs. 5, 6 (not shown), may be provided on the outside surface of ring 54 to enhance the throttling. The ring (64) prevents flickering of the flame and ensures that the flame is blue when the ring is positioned for a small flame.
Patent GB-961701-A (GB)
Title: Improvements in dryer control systems
IPC: D06F34/08
Filed: 1960-12-30
Abstract: 961,701. Tumbler driers. MINNEAPOLISHONEYWELL REGULATOR CO. Dec. 30, 1960 [Dec. 30, 1959], No. 44883/60. Heading F4G. The control system of a gas-heated tumbler drier comprises both a bulb 13a positioned to sense the temperature of the air being exhausted from the drier, which bulb controls by a valve 13 the supply of gas through a main diaphragm valve 12 to a main burner 21, and also a manually adjustable thermostat 80 having a bulb 81 positioned in the drier so as to sense the air inlet temperature, which thermostat breaks contacts 74, 75 via a capillary tube 82, bellows 83 and lever 77 in a timer switch mechanism 32 at a preselected level of heat imput to the drier. The timer mechanism comprises a manuallyoperable, spring-urged cam bar 57 having an upper cam surface 57a which sequentially engages downwardly-extending tails 36c, 31c and 68b of movable contacts 36, 31, 38 respectively to lift or lower the arms of the contacts and so make or break the contacts formed thereon. The lower edge of the cam bar 57 has teeth 57c which are engaged by a bimetallic member 60 heated by an electric heater 61 connected at one end by a line 62 to the power line 33 and at the other by a line 63 and contacts 64, 65 to the movable arm 68 of the timer mechanism. On commencement of the drying operation the bi-metallic member 60 is heated and moves to move a tooth 68a thereon out of registration with one tooth 57c on the bar 57 and another tooth 60b thereon to register with the tooth 57c. Movement of the bi-metallic member breaks the contact between contacts 64, 65 to cool the heater 61 and so cause the teeth 60b, 60a to move backwards. The bar therefore moves to the left by alternate heating and cooling of the bi-metallic member to provide a timed operation of the contacts 36, 31, and 68. The initial effect of the cam bar of the timer renders the timer inoperative after the commencement of the drying operation by breaking the contact between contacts 31b, 68a on the arms 31, 68 respectively by the cam surface 57a passing under the tail 68b so that for the remainder of the drying operation the drier operates for a fixed period under the control of the bulb 13a in response to the outlet temperature. Movement of the cam-bar under the second tail 31c breaks contacts 31a, 36b on the arms 31, 36 respectively to close an on/off valve 14 in the gas supply line, which valve is connected in parallel with a valve 17 in the supply line to a pilot burner 23. Movement of the cam bar 57 under the third tail 36c breaks the contacts 36a, 37 so as to break the circuit from a door switch 43, which circuit includes a motor 27 driving a fan F to circulate air through the drier, the pilot valve 17 and an igniter 44 of the pilot burner 23.
Patent GB-1387609-A (GB)
Title: Bulk dyeing of plastics
IPC: C08K5/3465
Filed: 1972-09-29
Abstract: 1387609 Colouring plastics materials BAYER AG 29 Sept 1972 [30 Sept 1971] 45112/72 Headings C3P and C3R Plastics materials are coloured (bulk dyed) by homogeneously incorporating therein from 0À0005 to 1%, by weight of the material, of the dyestuff 8,8<SP>1</SP>-dihydroxynaphthazine of the formula Suitable plastics materials include polycarbonates, polyamides, polymethacrylates, polystyrene, polyesters, polyolefins, polyvinyl chloride and acrylonitrile/butadiene/styrene copolymers. To produce an opaque dyeing an inorganic pigment such as titanium dioxide can be additionally used. The dyestuff can be incorporated into the preformed plastics material or can be added to the monomeric material from which the plastics material is subsequently obtained by polymerization. In examples the dyestuff, with or without titanium dioxide, is incorporated into (1) a polycarbonate formed from 2,2 - (4,4<SP>1</SP> - dihydroxy - diphenyl) - propane and phosgene, (2) polymethyl methacrylate, (3) polystyrene, (4) monomeric methyl methacrylate which is subsequently polymerized in bulk, (5) a polyamide obtained by the polymerization of #-caprolactam, (6) ABS copolymer and (7) polyvinyl chloride.
Patent GB-1008173-A (GB)
Title: Isoxazole compounds and production thereof
Inventor: KANO HIDEO
IPC: C07D261/08
Filed: 1963-11-15
Abstract: The invention comprises compounds of the formula <FORM:1008173/C2/1> wherein R is an alkyl group having not more than 5 carbon atoms and each of R1 and R11 is an alkyl group having not more than 5 carbon atoms or R1 and R11 together complete a 5- or 6-membered heterocyclic ring and A is an alkylene group having not more than 5 carbon atoms and the acid addition and quaternary salts thereof.  Suitable values of R1 and R11, where R1 and R11 complete a heterocyclic ring, are pyrrolidino, piperidino, piperazino, N-alkylpiperazino, morpholino or thiomorpholino.  The compounds are prepared by heating a compound of the formula <FORM:1008173/C2/2> wherein X is a halogen atom, with an amine of the formula NHR1R11 in the presence of an inert solvent or, when the amine is a liquid, excess of the amine and optionally in the presence of an acid eliminating agent.  Examples describe the preparation of 3-piperidinomethyl-, 3-morpholinomethyl-, 3-diethylaminomethyl-, 3 - (b  - piperidinoethyl)-, 3 - (b  - morpholinoethyl)-, 3 - (b  - pyrrolidinoethyl)- and 3 - (b -diethylaminoethyl)-5-methyl-isoxazole.