baber/WOPTO huggingface dataset:
Patent GB-1153888-A (GB)
Title: Regulators for Alternators
Inventor: REVAL HARDEV
IPC: H02J7/14
Filed: 1965-09-29
Abstract: 1,153,888. Automatic voltage control. C.A.V. Ltd. Nov. 17, 1966 [Sept.29, 1965], No.41310/65. Heading G3R. The output voltage of a multi-phase alternator, supplying a D.C. load over full-wave rectifiers including controlled rectifiers SCR1, SCR2, SCR3, Fig. 1 (not shown) is regulated by varying the firing angle of the controlled rectifiers. As shown, the output terminals 9, 10 of the alternator are connected over a current sensing resistor RS to a battery 9a and the battery voltage is sensed by a voltage divider R10, P2 associated with a Zener diode Z3 and transistors T6, T7. Triggering pulses for thyristors SCR1, SCR2, SCR3 are produced by respective firing circuits such as that for SCR1, which includes a blocking oscillator constituted by a transistor T1 and a saturable transformer L1 and which produces triggering pulses when the voltage on a timing capacitor C3 reaches a predetermined value. The capacitor C3 is connected over resistors R19, R18 to phase 1 of the alternator and is thus charged during one half cycle, and is discharged during the other half cycle to a value determined by the voltage sensing circuit which is connected to the capacitor over a diode D4. The arrangement is such that if the output voltage is too high, Z3 will conduct and, acting through transistors T6, T7, will cause the "initial" voltage on the capacitor to be lowered, so that it will take longer to charge up to the value necessary to initiate the production of firing pulses; the thyristor SCR1 will then be triggered later in the half-cycle of applied voltage. The firing circuits T2, L2 and T3, L3 for thyristors SCR2, SCR3 operate similarly, the firing circuits being balanced by adjustment of potentiometers P3, P4, so that the output of the alternator is controlled in the desired manner. If the output current exceeds a predetermined value a signal derived from the resistor RS is applied to the base of transistor T7 over a circuit including Zener diode Z1, resistor R1, transistor T4, Zener diode Z2 and transistor T5 whereby the output is again limited as described above.
Patent GB-1077729-A (GB)
Title: Process for the thermal treatment of textile yarns
IPC: D02G1/02
Filed: 1965-09-29
Abstract: Before synthetic yarns which have spin-finish applied to them are heated in a texturing-e.g. false-twist crimping-or stabilizing process to the spin-finish is removed by forming the yarns into a sheet which is passed into a vat containing a solvent for the spin-finish.  The sheet of yarns after thermal treatment-e.g. in an oven-may have spin-finish re-applied to them.
Patent GB-1409794-A (GB)
Title: Core for use in casting metals and a method of producing cored  castings
IPC: B22C1/08
Filed: 1972-09-06
Abstract: 1409794 Graphite compositions HOWMET CORP 6 Sept 1972 [17 Sept 1971] 41393/72 Heading C1A [Also in Division C3] A core for use in the casting of metals is formed by moulding a composition containing graphite, a polysiloxane and a catalyst for curing the polysiloxane to a pre-formed core configuration, curing, baking and firing the pre-formedcored configuration to convert the polysiloxane to a siliceous material to bond the filler together and define a dimensionally stable core. Suitable catalysts include zinc acetate, lead stearate, lead 2-ethylhexoate, calcium stearate, dibutyl triacetate, stannous octoate, lead oxide, zinc oxide, benzyltrimethyl ammonium 2-ethyl hexoate, tetramethyl ammonium acetate and benzoyl peroxide. In the specific Examples 9 and 10 where graphite is used it may be all of size -200 mesh (Tyler) or a mixture of -200 mesh (Tyler) flour and 30-100 mesh (Tyler) particles. The composition is formed into the desired core shapes and heated, suitably at 100‹ F. per hour to 1200‹ F., which temperature may be maintained for 4 hours; thereafter the core is heated at 100‹ F. per hour until the core reaches 2050‹ F. and is held at this temperature to complete the baking and firing cycle and convert the polysiloxane to a siliceous material to bond the ceramic filler particles together.
Patent GB-1221465-A (GB)
Title: Wear and abrasion-resistant material
IPC: C22C16/00
Filed: 1968-09-04
Abstract: 1,221,465. Nitrided alloys. SURFACE TECHNOLOGY CORP. Sept.4, 1968 [Sept. 5, 1967; Aug.27, 1968], No.41953/68. Heading C7A. A nitrided alloy consists of at least one metal from each of the Groups I, II and III where Group I = Nb, Ta and V, Group II = Zr, and Zr with up to 97% (by weight) of its content replaced by Ti, and Group III = Mo and W; and, subject to the following definitions: - where (a) Group II = 1-50% of the alloy, (b) max. Group I = C (90D + 75E) + 88B + 85A, (c) Group II # 17À5 (A+ B) +C (3E + 17À5D), --------- Group III Group III # A(2F+4G)+C[4G+2F(D+ ----------- (d) Group I 2E)] + B[4G + F(D + 2E)], + Group I #E (0À7A + 1À5B + 0À7C) ----------- (e) Group II + D (A + 1À5B + 0À7C), (f) When Group II > 37%, Group III > Group II - 35. Broad compositional ranges for the six Zrcontaining ternary alloys are as follows (many specific examples being given): The following examples of higher alloys are given: - (a) Nb 47, Mo 19, Ti 21, Zr 13; (b) Nb60, Mo20, Ti 8, Zr 12; (c) Nb 60, W25, Ti 5, Zr 10; (d) Nb 30, Ta 30, Mo 20, Zr 20; (e) Nb 30, Ta 30, W20, Zr 20; (f) Nb 30, Ta 30, Mo 10, W10, Zr 20; (g) Nb 30, Ta 30, V10, Mo5, W5, Zr20; (h) Nb 30, Ta 30, V10, Mo5, W5, Ti 10, Zr 10; (i) Ta 60, W15, Ti 10, Zr 15; (j) V40, W40, Ti10, Zr10; (k) V58, Mo10, Ti@<SP>@</SP>, Zr6. Nitriding may be effected in nitrogen at 2600- 3600 F. (depending on the particular alloy) and at atmospheric pressure, so that the nitrogen pick-up is at least 1 mg/cm<SP>2</SP>, the surface micro-hardness is at least 1000 DPN, and the reaction depth to which such hardness is developed is at least 0À5 mil. Uses. Rotary files and burrs, taps, drills, dies, rotary seals, nozzles and tube liners.
Patent GB-918227-A (GB)
Title: Apparatus for cutting metal strip into sheets
Inventor: BANDY KENNETH L
IPC: B23D25/00
Filed: 1961-11-25
Abstract: 918,227. Shearing. McKAY MACHINE CO. Nov. 25, 1961, No. 42233/61. Class 83 (4). An apparatus for cutting continuously moving strip into predetermined lengths comprises power-driven means to advance the strip and to measure the advance thereof, a flying shear and means to accelerate it to the speed of the strip, a clutch connecting the power source to a driving member which accelerates the shear, clutch actuating means controlled by the measuring means, and means to return the shear at the end of a cycle. Strip from a coil 11 passes through entry rolls 14, a roller leveller and exit rolls. One of the exit rolls is an idler, the remainder are driven by a motor 12. The idler roll drives a transducer 16 generating electrical impulses which are counted by conventional means and used to initiate actuation of the shear accelerating mechanism. A reciprocating press 18 is mounted on the base of the leveller and comprises a die-set which slides in guides in the press 18 and is actuated by a driving member which carries a cam follower running in the track of a drum-type cam 22. The cam is rotated by a shaft 26 which has keyed to it the driven element 34 of an air-operated clutch. The driver element 31 of the clutch is continuously driven by a motor 33 through a worm reduction gear 20. Also mounted on the shaft 26 is the driven element 36 of a second airoperated clutch 37, the driver element 38 of which is driven by a shaft 39 from the leveller rolls. The cam is driven in a direction to advance the die set in the same direction as the strip by the clutch 37 and is returned by disengaging the clutch 37 and engaging the clutch 32. In order to stop the cam in exactly the same position to re-start the cycle there is a stop-plate mounted on the cam which engages an abutment carried by the frame, a detent in the periphery of the cam is engaged by a roller mounted on the piston of an air-cylinder as the cam reaches its rest position, so that rebound of the cam is restrained and it is rocked into the precise predetermined position.
Patent GB-1016119-A (GB)
Title: Electric motor
IPC: H02K23/04
Filed: 1964-10-16
Abstract: 1,016,119. Electric motors. TOKYO KAGAKU KABUSHIKI-KAISHA. Oct. 16, 1964 [Oct. 16, 1963 (3)], No. 42422/64. Heading H2A. A small electric motor has permanent magnets 19 mounted in a cube-shaped casing having a detachable end-cover carrying the brushes. The rotor bearings 1, 10 are located in the casing and end-cover respectively. The casing is of sheet-metal or plastics. The wire brushes 11 are carried on helical springs 12 round axial pins 15 whose rear ends 13 project to form terminals. The end-cover is secured by bentdown lugs 25.
Patent GB-1359182-A (GB)
Title: Charging method in electrophotographic process
IPC: G03G5/10
Filed: 1971-09-10
Abstract: 1359182 Electrostatic charging FUJI PHOTO FILM CO Ltd 10 Sept 1971 [11 Sept 1970] 42431/71 Heading G2H A web 1 is fed past a charging device 10, exposure station 12, developing station 15 and another charging device 13; a trailing portion of the web being charged with a first polarity at 10 while a leading portion of the web is simultaneously charged with the opposite polarity at 13. The provision of device 13 obviates the need for earthing the web during charging at station 10. Optionally exposure station 12 may precede charging device 10.
Patent GB-1007635-A (GB)
Title: Fluid-distribution mechanism
IPC: B05B1/08
Filed: 1963-10-28
Abstract: 1,007,635. Spray-producers. D. B. MclNTYRE. Oct. 28, 1963 [Dec. 6, 1962], No. 42445/63. Heading B2F. Hot adhesive fluid is intermittently sprayed from a continuously rotating nozzle comprising inner and outer metal cylindrical members 1 and 3. The intermittent nature of the discharge is accomplished by effecting relative axial movement of the members whilst they rotate, such movement arising from the reciprocable actuation of a fork-member 21 secured to the rear end of the member 1. The fork-member is operated by an air cylinder 19 controlled from a synchronizer 23 which' defines the programme of actuation of the nozzle through its control of the air cylinder and a motor which rotates the combined members 1 and 3. The latter are prevented from relative rotation by a connecting slot-and-pin arrangement 15<SP>1</SP>, 15 which allows the necessary degree of relative axial movement. This degree is defined by the axial movement necessary between the members 1 and 3 to alternatively cut-off and connect the alignment between adhesive discharge openings 2<SP>1</SP> and 3<SP>1</SP> in the respective members. The members rotate within a stationary fluid supply housing 9 in bearings 19 and fluid passes from annular cavities 11 to four equiangularly spaced apertures 3<SP>11</SP> in the member 3 from whence it flows to an axial bore 2 in the member 1 through an annular recess 7, formed between the members, and four equiangularly spaced apertures 2<SP>11</SP> in the member 1.
Patent GB-972923-A (GB)
Title: Improvements in or relating to farrowing pens for pigs
IPC: A01K1/02
Filed: 1962-11-13
Abstract: 972,923. Farrowing pens. R. H. BENSON. Oct. 4, 1963 [Nov. 13, 1962], No. 42850/62. Heading A1M. A farrowing pen comprises a framework 1 closed at one end by a fixed door 2 provided with anticrush bars 3 fixed at such height that beneath them is defined a free floor space into which the piglets can fall at birth. An opening through which the piglets have access to the sow is provided, the upper edge being defined by a heavily spring-loaded telescopic bar 5 selectively engaged at its ends in holes 6. The frame, which is of galvanised steel tubing, may be attached to a hard wood base or cemented into the floor of the farrowing quarters. The door 2 may comprise a panelled-over tubular trame structure and the other end of the pen may be closed by a simillar door or by standing the pen against a wall.
Patent GB-1387737-A (GB)
Title: Process for the continuous production of vinylidene fluoride
IPC: C07C21/18
Filed: 1972-09-15
Abstract: 1387737 Continuous production of vinylidene fluoride KALI-CHEMIE AG 15 Sept 1972 [15 Sept 1971] 42939/72 Heading C2C Vinylidene fluoride is obtained by a continuous process comprising two separate, parallel stages wherein in one stage 1,1-difluoroethane is chlorinated to 1,1,1-chlorodifluoroethane and in the second stage 1,1,1-chlorodifluoroethane is pyrolysed to give vinylidene fluoride, the reaction products from the two stages are combined, hydrogen halides formed and excess chlorine are removed to give a mixture of halogenated hydrocarbons, and vinylidene fluoride, 1,1,1-chlorodifluoroethane and any unreacted 1,1-difluoroethane are separated from the mixture, and the separated 1,1,1-chlorodifluoroethane is delivered to the pyrolysis stage, any separated 1,1-difluoroethane being delivered to the chlorination stage. Preferably complete chlorination is effected in the first stage in a photochlorination reactor and the second stage pyrolysis is effected in a nickel tube.
Patent GB-1104101-A (GB)
Title: Improvements in or relating to apparatus for controlling the path of a device carried by a moving vehicle
Inventor: MATTHEWS JOHN
IPC: G05D1/02
Filed: 1964-10-21
Abstract: 1,104,101. Square rooting circuit. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 18 Jan., 1966 [21 Oct., 1964], No. 42985/64. Heading G4G. [Also in Divisions E1 and H4] A circuit for providing an output voltage across lines 50, 51 which is the square root of an input D.C. voltage comprises three series resistor-diode circuits connected to points of a resis. tor 58 across which is applied a constant D.C. bias voltage. The values of the components are given. The circuit allows for decreasing wave amplitude with distance in a wave-energy position finding system (see Division H4).
Patent GB-1175831-A (GB)
Title: Improvements in Squee-Gees
Inventor: BROCK GEORGE
IPC: E01H1/10
Filed: 1965-10-11
Abstract: 1,175,831. Cleaning floors and windows. G. BROCK. 9 Jan., 1967 [11 Oct., 1965], No. 43017/65. Heading A4F. A squeegee comprises a rubber or like blade 13, a back support 10 for the blade, a clamping member 14 between which and the back support the blade is sandwiched and a tubular handle 12 attached to the back support, the handle being inclined from the normal to the scraping edge of the blade and being connectable to a source of water supply so that water is discharged in front of the blade. The support 10 and the member 14 are made of metal or plastics, the support 10 having a spigot 11 to which the handle is attached. A plate 15 provided with a slot or hole forms, in conjunction with the member 14 and a pair of end plates, a duct 16. A valve (not shown) may be provided to control the water flow to which detergent or disinfectant may be added and the blade may be grooved along the edge. In a modification, the blades are parallel and are mounted perpendicular to a back plate. The duct may be formed in the rubber blade and suction apparatus may be provided when the squeegee is used in areas from which drainage is difficult.
Patent GB-1202440-A (GB)
Title: Improvements in or relating to timing control systems
Inventor: PHILLIPS KENNETH RICHMOND
IPC: G04F3/00
Filed: 1967-09-22
Abstract: 1,202,440. Control systems for cooking ovens. SMITHS INDUSTRIES Ltd. 13 Sept., 1968 [22 Sept., 1967], No. 43134/67. Heading H2H. A system for controlling the temperature and the energization or de-energization time of the heating means of an electric cooker comprises a heat control means 1 and a time control means 2 together with a mechanical interlock including a lever 4, the arrangement being such as to prevent one of the control means being set if the other of the control means is set above a predetermined value. Rotation of the cam 3 of the heat control means 1 sets the operational temperature of the cooler heating means and if this is set at any position between OFF and a point X, the interlock lever 4 assumes a position wherein a pawl 11 engages the teeth on a ratchet-wheel 10 associated with the time control means 2. The time control means 2 can then be set manually by rotating an arm 9 clockwise, the ratchet-wheel 10 being moved by the abutment of the arm 9 on a peg 13. When a desired time has been set by the means 2 the ratchetwheel 10 is held by the pawl 11 on the arm 4. During the timed period the arm 9 moves back to its original position whereupon the end of the arm 9 engages a plate 12 carried by the arm 9. The lever 4 then lifts to disengage the pawl 11 from the ratchet-wheel 10 whereafter the heating means for the cooker is energized. Should the heat control means 1 be set above a given temperature setting where the cam follower 6 is on the camming surface 7b the time control means 2 cannot be set since the pawl 11 is disengaged from the ratchet wheel 10. The time control means may alternatively be arranged to time the energization period of the heating means.
Patent GB-1519817-A (GB)
Title: Fusing apparatus
IPC: G03G15/20
Filed: 1975-10-21
Abstract: 1519817 Heat fuser apparatus XEROX CORP 21 Oct 1975 [13 Jan 1975] 43159/75 Heading B6C The apparatus is of the kind in which a copy sheet bearing a toner image is passed between. a heated fuser roll and a co-operating back-up roll to fuse the image to the sheet. A means for applying a release material solid at ambient temperature, such as low molecular weight polyethylene, is periodically moved into and out of contact with the heated roll, e.g. twice a minute.
Patent GB-1234996-A (GB)
Title: Ethylene/propylene terpolymer compositions
IPC: C08K5/09
Filed: 1968-09-11
Abstract: 1,234,996. Ethylene-propylene terpolymer compositions. DUNLOP CO. Ltd. 11 Sept., 1968 [16 Sept., 1967], No. 43180/68. Heading C3P. A vulcanizable composition of improved rate of vulcanization comprises an ethylene/propylene terpolymer, 1 to 20 parts by weight of sulphur per 100 parts of terpolymer and 2 to 30 parts by weight of an unsaturated liquid per 100 parts of terpolymer, the liquid being capable of cross-linking. The unsaturated liquid is exemplified by liquid natural rubber, gutta percha extract, styrene-butadiene rubber, polybutadiene, α, #-polybutadiene dicarboxylic acid, α,#-polybutadiene glycol, soya bean oil and cotton seed oil. The compound which confers unsaturation on the terpolymer may be a non- conjugated diene exemplified by 1,4-hexadiene or dicyclopentadiene. The composition may also include such compounding ingredients as stearic acid, zinc oxide, carbon black and clays.
Patent GB-1302317-A (GB)
IPC: F16C33/58
Filed: 1971-09-16
Abstract: 1302317 Making bearings; stamping RIVSKF OFFICINE DI VILLAR PEROSA SpA 16 Sept 1971 [27 Oct 1970] 43233/71 Headings B3A and B3Q A method of manufacturing a rolling bearing comprises forming a sheet of material into an annular element having two annular portions of different diameters, shaping the two said annular portions to have the shape required to act as races for the elements, and separating the two portions in such a manner as to provide radially inner and outer rings for the bearing. In one embodiment, race rings 1, 2 (Fig. 1) are produced by dividing an element of the shape shown in Fig. 2 along the annulus 5. The element may alternatively be S-shaped in crosssection. In another embodiment, race rings 6, 7 (Fig. 5) are provided with races 6a, 7a by inserting a rubber ring in an element of the shape shown in Fig. 6 and applying pressure axially to the ring whilst the ring is supported in a die (Fig. 8, not shown). The part 8c of the element 8 may be retained as a radial flange on one racering, or removed.
Patent GB-912226-A (GB)
Title: Improvements in or relating to ultrasonic testing of materials
Inventor: HANSTOCK RAYMOND FORD
IPC: G01N29/04
Filed: 1959-12-21
Abstract: 912,226. Ultrasonic inspection methods and devices. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 8, 1960 [Dec. 21, 1959], No. 43420/59. Class 40 (7). In ultrasonic testing of materials a signal is transmitted through a region under examination from one position, signals initiated in that region by the transmitted signal are received at a plurality of positions, and the relative strengths of the output signals are compared to determine the characteristics of any defect in the region under examination. Piezo-electric test probes 1 ... 4 are aligned on faces F of a pair of steel plates 5 butt-welded such that the faces lie in a common plane, the probes being equi-spaced at distances equal to the plate thickness. Probes 1, 4 propagate waves at 45 degrees to the faces, and transmit intermittently in alternating sequence. Probes 1, 4 act as transmitters and receivers, and probes 2, 3 as receivers only. In one arrangement a cathode-ray tube indicator is connected to the receivers in turn, Fig. 2 (not shown). In another arrangement gates G1 ... G8 are opened by corresponding and adjustable delay line outputs and receiving amplifiers A1 ... A4 are connected as shown to pen recorder 18. The probes are adjustably mounted on a support 20 and are moved along the run of the weld, rotation of chart drum 19 being synchronized therewith. A table showing the relative strengths of received signals to be expected from different types of flaws is given, Fig. 3 (not shown).
Patent GB-950687-A (GB)
Title: Air cooling of close-coupled pump and motor units
Inventor: STEPNICA VLADIMIR
IPC: F04D29/58
Filed: 1961-12-06
Abstract: 950,687. Cooling electric motors. SIGMUND PUMPS Ltd. Dec. 4, 1962 [Dec. 6, 1961], No. 43738/61. Heading H2A. [Also in Division F2] In a pump for pumping hot liquids and comprising an impeller 3 driven by an electric motor 2 through a common shaft 4 sealed where it extends through the pump housing by packing in a stuffing-box 10 located in a housing 11, 13, the stuffing-box is cooled by air circulated through the housing 11, 13 by an air impeller 27 on the shaft 4. The impeller 27 is separated from the housing part 13 by a shroud 28 having a sleeve 29 surrounding the shaft. Air drawn into the stuffing-box housing through two apertures 21 is led via the sleeve 29 to the eye of the impeller 27 whence it is discharged to the atmosphere through holes 25 in the impeller casing 22.