baber/WOPTO huggingface dataset:
Patent GB-556649-A (GB)
Title: Improvements in apparatus for and methods of measuring or controlling the value of ph, or of the conductivity of solutions or of oxidation reduction potentials and the like
IPC: G01N27/04
Filed: 1942-04-13
Abstract: 556,649. Voltage and resistance measurements ; determining physical qualities of materials. MARCONI INSTRUMENTS, Ltd., BARTLEY, W. B., and BROCKLESBY, C. F. April 13, 1942, No. 4850. [Class 37] In an arrangement for measuring pH or rH values or conductivity of solutions, a liquid X under test in container C1 is compared with a standard solution S in a container C2 in heatexchanging relation with C1, and electrodes E1, E2 are connected to the grids of valves V1, V2 forming part of a known symmetrical differential bridge comprising anode resistances, with an amplifier A, if desired, connected to +, and with a high-value cathode impedance Rk connected to -, the terminals being shunted by resistors R3, R4, the centre point of which is connected to a half-cell Ch and conventional salt bridge having electrodes B1, B2 in the receptive solutions. A resistance thermometer T in the tested solution makes a correction for temperature-changes thereof. The indicator is shown at 1. In Fig. 5, the half-cell Ch is connected by a movable slider P to a tapping on one, R5, of a pair of resistors connecting the cathodes together, the electrical mid-point of the resistors being connected to Rk. For balancing the bridge. the tapping is adjustable by a reversible motor M driven through a control system CS from the amplifier output, the tapping position indicating the quantity to be measured. In Fig. 4, the reference half-cell Ch2 is connected through ammeter A1 to resistances R3, R4, as in Fig. 3, but the half-cell Ch1 in solution X is connected to a point in a further shunt circuit acting as a feedback amplifier comprising a fixed impedance R7, a bias battery, and a variable impedance comprising a triode V3 having its grid connected to the amplifier A. A resistance-thermometer T is connected across the half-cells Ch1, Ch2. When the potential-changer at E1 upsets the normal balance, current flows through the ammeter A1 and thermometer T, and the reading of A1, compensated for temperature, is a measure of the potential-change. In measuring conductivity, a pair of electrodes are immersed in each of the liquids, as in the pH applications, a suitable standard solution being one of potassium chloride, which has substantially the same temperature coefficient as most of the unknown liquids met with in practice.
Patent GB-1002204-A (GB)
Title: Improvements in or relating to buckles
Inventor: HATFIELD JOHN EDWARD
IPC: A44B11/25
Filed: 1963-02-06
Abstract: 1,002,204. Bar buckles. IRVING AIR CHUTE OF GREAT BRITAIN Ltd. Feb. 3, 1964 [Feb. 6, 1963], No. 4867/63. Heading E2A. A bar buckle has means for resiliently urging a strap 9 passing round the bar 6 against that bar so as to provide frictional resistance to slipping of the strap around the bar. The bar buckle may be the slide member 1 of a two part buckle in which the member 1 with tongue 2 may be passed through a loop member 3 so that when the straps are under load the member 1 slides in the loop member trapping the strap against an abutment 8 in the loop member. The resilient means may take various forms but spring means are preferred. In Fig. 4, the resilient means consists of a leaf spring 11 with side flanges 12 which engage the outer edges of slots 4, 5 and cause the spring to bear against the strap 9 on the locking bar 6. The resilient means may also be a spring recessed into the rear slot 5 or a leaf-spring riveted to the top of the slide member and bearing down on top of the locking bar 6. Specification 949,611 is referred to.
Patent GB-830560-A (GB)
Title: Method of making garnet
IPC: C30B29/26
Filed: 1956-02-16
Abstract: A method of making garnet comprises compressing hornblende with a metallic dehydrator under a pressure of at least 27,000 atmospheres whilst heating the material to a temperature above the melting point of garnet, and subsequently cooling the material to a temperature below the melting-point of garnet while maintaining the material under a pressure of at least 27,000 atmospheres.  The metallic dehydrator may be of any metal (including silicon and germanium) except platinum, osmium, indium, palladium, rhodium, ruthenium, copper, silver, gold and mercury; tantalum or iron is particularly suitable.  In one method a tantalum reaction vessel is filled with powdered hornblende and subjected to a pressure of 40,000 atmospheres; the temperature of the reaction vessel is raised to 1300 DEG  C. for three or four minutes and then cooled to room temperature when the pressure is released.  In another method a mixture of 1 part of ion and 5 parts of hornblende are placed in a graphite reaction vessel and heated to 1300 DEG  C. for eight minutes at a pressure of 40,000 atmospheres.  The composition of hornblende is given as Ca2(Na,K) (Mg, Fe)4 (Al, Fe, Ti)3Si6O22(O,OH)2 where the ions in parentheses may be exchanged for one another; that of garnet is given as X3Y2(SiO4)3, where X is Mg++, Fe++, Mn++, or Ca++, and Y is Al+++, Fe+++, or Cr+++. Specification 830,210 is referred to.
Patent GB-123621-A (GB)
Title: Improvements in and relating to Automobile Alarms.
Inventor: WIDERBERG ADOLPH MARTIN
IPC: B60R25/10
Filed: 1918-03-21
Abstract: 123,621. Widerberg, A. M. March 21, 1918. Theft and like alarms.-Means for giving an alarm on a motor-car should it be operated by an unauthorized person. A contact maker is fitted en the axle and closes an electric circuit through a secret switch when the car is started. In the construction shown, a disk 2 carrying contacts 31, 32 is fixed on the axle 3 which passes through a plate 1 suspended by a telescopic device 4 from the body of the car and is provided with roller bearings. The plate 1 carries contacts 29, 33 which are engaged by the contacts 31, 32 once in each revolution, so ringing a bell 36. The switch 27 for controlling the circuit is placed in a position selected by the driver. The contact carriers 1 and 2 are enclosed in a dust-proof casing 23.
Patent GB-723133-A (GB)
Title: Oxidation-inhibited, silver non-corrosive lubricants
IPC: C10M141/10
Filed: 1952-02-26
Abstract: Zinc salts of esters of dithiophosphoric acid for use in lubricants are prepared by reacting P2S5 with an alcohol at about 120-200 DEG F. and treating the esters obtained with zinc oxide at 70-170 DEG  F. Mixed esters may be obtained using different alcohols, e.g. 3 mols. of methyl and 1 of hexyl alcohol to 1 mol. of P2S5.  In examples, isopropyl or sec. butyl alcohol and methylisobutylcarbinol are reacted with P2S5, and the product treated with zinc oxide, in one case in the presence of a petroleum oil as diluent.  Water of neutralization is removed with calcium sulphate or by blowing with air.ALSO:A lubricant comprises a major proportion of a lubricating oil, a zinc salt of an ester of dithiophosphoric acid in amount sufficient to inhibit oxidation, and calcium oxide or hydroxide dispersed in said oil in sufficient amount to inhibit the silver corrosivity, the dispersion being stabilized with a polyvalent metal sulphonate.  The oil may be mineral or synthetic, e.g. alkylene or alkylene oxide type polymers, dicarboxylic acid esters and liquid esters of phosphorus acids, examples being given.  The zinc salts are represented <FORM:0723133/III/1> p  where R, R1 are alkyl, aryl, alkaryl aralkyl or other cyclic hydrocarbon radicals, which may contain substituents such as Cl, Br, O and N in proportions such as not to alter substantially their hydrocarbon nature, and containing together 7-50 carbon atoms, R preferably having 1-25 and R1 6-25. Mixed esters wherein R is derived from an alcohol of not more than 4 and R1 from an alcohol of 6-18 carbon atoms are preferred. Many esters are specified.  The amount of zinc salt used is preferably .05-2 per cent by weight of the total but concentrates containing 50 per cent or more may be prepared.  The polyvalent metal sulphonates include calcium and borium salts of sulphonic acids from petroleum, polyolefins or alkyl aromatic hydrocarbons of molecular weight about 350-900.  The amount used is .1-10 per cent, and the amount of lime dispersed .02-7 per cent of the total.  The initial dispersion is effected by adding a dihydric alcohol such as ethylene glycol with the calcium oxide or hydroxide to the oil.  The sulphonate is then added and the mixture heated to remove the alcohol as described in Specification 718,714.  Oiliness, blooming, peptizing and thickening agents, V.I. improvers, and pour point depressants may be incorporated. Examples describe the preparation of zinc salts of mixed esters of diothiophosphoric acid with isopropyl or sec butyl alcohol and methylisobutylcarbinol, and with methyl and hexyl alcohols (see Group IV (b)).  The inhibiting effect of varying amounts of a dispersion in oil of calcium oxide stabilized with calcium petroleum sulphonate on the silver corrosion of a solvent-refined oil containing the zinc salt of a mixed ester of dithiophosphoric acid with sec butyl alcohol and methylisopropylcarbinol is illustrated.
Patent GB-476405-A (GB)
Title: Improvements in or relating to the operation of galvanic tin-depositing baths
IPC: C25D5/00
Filed: 1937-02-20
Abstract: 476,405. Electrodeposition of tin. SIEMENS & HALSKE AKT.-GES. Feb. 20,1937, No. 5164. Convention date, July 10, 1936. [Class 41] To prevent the formation of stannite in the operation of galvanic alkaline tinning baths for continuous or progressive working in which soluble tin anodes are used and the cathodes are suspended into the bath consecutively either singly or in groups, the cathode or cathodes which is or are first suspended in the bath are loaded to a higher current density than the normal working current density of the individual cathode surfaces. Thus, using a ring bath with 58 anodes on the outer wall 48 anodes on the inner wall and 15 iron plates each having an effective surface area of 0À8 square metre moving between the anodes, normally 120 amps. per cathode is required for tinning, the total ring bath current being 1800 amps. at full load. According to the invention the current supplied to the bath upon suspension of the first iron plate may be 200 amps., a further 200 being applied for each successive plate; thus, the full load is reached when only 9 plates have been suspended, and the remaining 6 are suspended with no further application of current. The initial load may be 300 amps., full load being reached on suspension of the sixth plate, or the full load may be applied on suspension of the first or second cathode.
Patent GB-1487813-A (GB)
Title: Fuel injection apparatus for internal combustion engines
IPC: F02M69/00
Filed: 1975-02-06
Abstract: 1487813 Controlling fuel injection NIPPONDENSO CO Ltd and TOYOTA JIDOSHA KOGYO KK 6 Feb 1975 [24 June 1974] 5164/75 Heading F1B An internal combustion engine 100, has an intake pipe 160, intake ports 150 communicated with engine cylinders 110 and intake valves 140 in the intake ports. Fuel is injected intermittently to each cylinder 110 via nozzles 600 from a meter 400 (mounted on the intake pipe and responsive to engine operation conditions) for periods which extend beyond the instant when each intake valve 140 closes. The fuel is distributed to the nozzles 600 via a rotary distributer 500 which has means (not shown in Fig. 1) to advance the time in the cycle at which fuel is injected adjacent each valve 140 as engine speed increases. Fuel metering. Fuel from a tank 200 is delivered through a pressure regulating valve 330 to the chamber 481 of a constant differential pressure valve 480 mounted on the meter 400. The meter includes a suction-operated spring-biased piston 432 which responds to intake pipe suction and moves a metering needle 440 (with a tapering groove 441 that co-operates with a sleeve 460 longitudinally, to vary the amount of fuel passing from the chamber 481 to a space inside a sleeve 460. The sleeve 460 is also spring-biased and moved longitudinally by a device 471 sensitive to fuel temperature. Outlet control ports 463 in the sleeve co-operate with an outlet duct 422 to meter the fuel according to engine temperature, which then passes through the other chamber 482 of the constant differential pressure valve 480 to a distributer 500. Distributer and injection timing advance. The distributer 500, Fig. 2, has a central shaft 520 rotated at ¢ crank-shaft speed and is hollow at one end 522 to receive fuel which is delivered through four delivery apertures (of which only two 502, 503 are shown) to four injector nozzles 600. Around the shaft 520 is a rotatable sleeve 530 with four apertures (of which only two 531, 532 are shown) each aperture constituting 90 degrees of the sleeve circumference and each co-operating with one of the delivery apertures 502, 503. The sleeve 530 is rotated with respect to the distributer body 501 to advance fuel delivery time in the engine operating cycle by means of a linkage 540 incorporating a cam-follower 545 operated by a 3-dimensional cam 552. The cam's axial position is determined by governor weights 554 and hence engine speed, while its radial position is determined by a lever 560 operated in tandem with the engine throttle valve.
Patent GB-588606-A (GB)
Title: Improvements in and relating to inclined-crank and wobbler mechanism
IPC: F16H23/04
Filed: 1944-03-20
Abstract: 588,606. Swash-plate mechanism. BLUM, H. L. March 20, 1944, No. 5165. Convention date, Feb. 10, 1943. [Class 80 (iii)] [Also in Groups XXIX and XXXIV] In crank and wobbler mechanism, the wobbler disc 29 carries a downwardly open spherical surface 69 engaging a ball race 65 on an axially adjustable member 59. As applied to a liquid meter, the wobbler has bearings 34 engaging the ends of piston rods 25 of pistons 23 slidable in cylinders 7, and rotary movement of the wobbler 29 is prevented by a fork 111 thereon engaging a fixed rod 113. A projection 85 on the wobbler 29 has a part spherical roller engaging a cylindrical bore 109 in a crank 101 on a.shaft 97 coaxial with the member 59. The shaft 97 also has a crankpin 99 which actuates a slide valve 21 and a yoke 103 on a driven shaft 105. Fluid enters the cylinder 7 through the ports 9, 11, to reciprocate the pistons and passes out through ports 17, 19, 15, thus actuating the driven shaft 105. Vertical adjustment of the member 59 by an adjusting screw 45 varies the inclination of the wobbler projection relative to the axis of the shaft 97 and thus varies the stroke of the pistons.
Patent GB-667627-A (GB)
Title: Improvements in or relating to mechanical joints
IPC: H01G5/12
Filed: 1950-03-01
Abstract: 667,627. Electric condensers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 1, 1950 [March 4, 1949], No. 5186/50. Class 37. [Also in Groups XXIV and XXXIV] The fixed plates 21 of a variable condenser are supported and insulated from the housing 29 by means of balls 17 of insulating material, preferably ceramic, rigidly held between trunnion members carrying the plates 21 and outer sleeves 41, 43, 45, 47. Rigid couplings 7 and 9 comprising insulated balls in grooves are also provided between parts of the shaft 1 of the movable plates 25 which is supported at one end by a ball bearing 31 and at the other by a single thrust ball 33 of insulating material. A trimming condenser with a spindle supported by insulated balls is also described. Specification 440,950, [Group XXXV], is referred to
Patent GB-539802-A (GB)
Title: Improvements relating to thermionic valve amplifiers
IPC: H03F1/16
Filed: 1940-03-21
Abstract: 539,802. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. March 21, 1940, No. 5267. [Class 40 (v)] In an amplifying system employing at least one valve of the tetrode or other multi-electrode type, a capacitative reactance is connected directly between the circuits of the anode and control grid to provide cancellation of the voltages set up across the inductive reactances which are common to both anode and grid circuits by virtue of the capacity existing between the valve elements, in order to eliminate oscillation at frequencies near the natural frequency of the anode and grid circuits. In Fig. 1 the external terminals of the anode, screen and control grids are shown as A, S and G while corresponding working points of the electrodes are shown as A<SP>1</SP>, S<SP>1</SP> and G<SP>1</SP>. The reactances of the screen and control grid leads are shown as Zs, Zc and the inter-electrode capacities are shown as Cs, Cg, Cga and Cgf. The tendency to produce self-oscillation is overcome by the provision of a condenser Cb connected directly between the grid and anode terminals. The application to a pentode is also described. The compensating capacity may be constructed by a transmission line of suitable length.
Patent GB-252085-A (GB)
Title: Projection of pictures, particularly cinematograph pictures, with quasi or psychic stereoscopic impression
IPC: G03B35/00
Filed: 1925-02-26
Abstract: 252,085. Cubitt, A. S. Feb. 26, 1925. Optical-projection apparatus; relief effects in kinematograph images, producing.-Relief effects in projected images, produced as described in Specification 236,639 by projecting alternating sharp and unsharp images from an ordinary positive, are obtained by periodically introducing a disturbing refractory member into the projection beam, or by moving elements of the lens. The disturbing member may comprise glass or quartz pieces, with plane parallel surfaces or with a cylindrical surface on one side, or a transparent or translucent textile such as drawn silk. drawn mercerized cotton, acetate celluloid, or the like. The member may be introduced in front of or behind the lens or between the lens elements. As shown in Fig. 1, glass or quartz members 3 are carried by a spindle 4 driven from the shutter shaft 5 by helical gears and a spindle 6 - - 10. The spindle 4, gears, &c. are carried by a member 14 which is capable of swinging on a bracket 11 carrying the shutter shaft and is normally held by a catch 15. A guard 18 is provided to protect the members 3. Fig. 7 shows disturbing elements comprising a pair of sectors 19 of different thickness from another pair 20, and a combination may be employed in which one of the sectors 20 is omitted and the other sector 20 is thicker than the sectors 19. Fig. 9 shows a projection lens in which the back element 24 is carried by a separate mount 25 on a pivoted member 26 which is caused by a cam 27, pawl 28, and springs 30, 31, to move to and from the element 23. The whole lens may be reciprocated axially, or a fluid lens of variable focal length may be introduced into the lens system. The lens may also be moved sideways and downwards at the same time as it is otherwise disturbed.
Patent GB-1454681-A (GB)
Title: Permanently magnetic stator for an electrical machine
IPC: H02K1/17
Filed: 1974-02-05
Abstract: 1454681 Making stators SIEMENS AG 5 Feb 1974 [5 Feb 1973] 05352/74 Heading B3A [Also in Division H2] In a stator wherein a cylindrical air gap surface 28 is defined by an alternating sequence of polepieces 7-10 and abutting circumferentially polarized permanent magnets 3-6, the forces of attraction between the polepieces and the magnets are sufficient to hold the polepieces and magnets together to form a self-supporting structure. In the stator shown, the magnets 3-6 are block shaped, the polepieces 7-10 are laminated and have air cooling ducts 25, and sets of radially polarized permanent magnet plates 11-14 and sheet steel yoke plates 15-18 are arranged on the outside of the polepieces. Casting resin (not illustrated), press plates (19, 20, Fig. 3, not shown), and axial bolts (21, 22) are also incorporated. The stator is constructed by positioning the various bodies around a cylinder 2 on the exterior of a further cylinder 1 of magnetic material, e.g. steel, the cylinder 2 serving as a centering device and having a resin repellant coating (not illustrated) thereon. Resin is then applied to fill any unoccupied spaces, and the assembly is heated to approximately 200‹ C. to cure the resin. At such temperature, any forces of attraction between the cylinder 1 and the bodies outside cylinder 2 are somewhat reduced and the pair of cylinders 1, 2 can then be removed.
Patent GB-232382-A (GB)
Title: Improvements in limb supports and splints
IPC: A61F5/058
Filed: 1924-03-03
Abstract: 232,382. Longden, R. March 3, 1924. Splints; limbs, artificial.- An adjustable splint comprises tubular uprights 7 carrying rotatable thimbles 9 which are threaded to receive screwed rods 8 carrying a stump support 5. The rods 8 are provided with lock nuts 10 and may be made in two parts united by a threaded piece 11. The support 5 consists of a metal ring 12 surrounded by a pad which may be made of sponge rubber. The pad is split to enable it to be fitted over the ring 12. The lower ends of the uprights 7 are bent inwards and support a foot plate 6, or other end-piece if the splint is to be used for supporting a fractured arm. The appliance may be enclosed in an outer casing and may be provided with a bucket to receive an amputated limb.
Patent GB-1198607-A (GB)
Title: A Device for Supporting Conveyors in Mineral Mines.
IPC: E21F13/06
Filed: 1969-01-31
Abstract: 1,198,607. Scissor hoist; endless conveyer. GEWERKSCHAFT EISENHœTTE WESTFALIA. 31 Jan., 1969 [11 Oct., 1968], No. 5386/69. Heading B8A and B8H. The discharge end 23 of a longwall conveyer 24 is supported by a platform 10 mounted on a scissor linkage comprising two pairs of arms 4, 5 each with a guide rail 16, 15 for engagement with a slidable member 17, 18. The members 17, 18 are pivotally connected by a spindle 19 attached to the piston 20 of an hydraulic ram 21, whereby actuation of the ram will move the members 17, 18 along the respective rails to open or close the arms 4, 5 and thereby raise or lower the platform. The apparatus is coupled to a rail 26 attached to the side of a roadway conveyer 25, into which the longwall conveyer is discharged, and is movable along the rail by an hydraulic ram 28.
Patent GB-1446821-A (GB)
Title: Composition resistors
IPC: H01C17/02
Filed: 1974-02-06
Abstract: 1446821 Resistors SIBIR NI INST ENERGETIKI and OPYTNOE PROIZVODSTVENNO TEKHNICHES KOE PREDPRIYATIE ENERGOTEKHPROM 6 Feb 1974 [28 Feb 1973] 05420/74 Heading HIS A method of manufacturing resistors having a protective coating comprises filling a mould formed between concentric cylinders 3, 4 with the protective coating material 5, and then removing the inner cylinder 4 whilst filling the remaining space with resistive material 11. The protective coating material may comprise Portland cement, high-silica sand, dispersed carbon, fibrous asbestos, water and polyvinylacetate emulsion and the mould is subjected to vibration as the material is fed in. The resistive material 11, comprises Portland cement having a moisture content of 6À5 to 10% and optionally dispersed carbon material and dielectric filler and as it is introduced inside its protective coating it is compacted by a mechanism 12, mounting plate 7 being simultaneously rotated. When the resistor is completed it is held at 15- 25‹ C. for 20-40 hours and is then subjected to hydrothermal and drying treatments.