baber/WOPTO huggingface dataset:
Patent GB-889798-A (GB)
Title: Improvements in or relating to magnetic detectors
Inventor: BUCKLAND ERNEST CLIFFORD
IPC: B61L1/16
Filed: 1957-12-23
Abstract: 889,798. Track apparatus. N.S.F. Ltd. Dec. 23, 1958 [Dec. 23, 1957; Sept. 23, 1958], Nos. 39873/57 and 30330/58. Class 105. [Also in Group XXXVI] An electromagnetic detector for detecting the wheels of railway vehicles passing along a track comprises a source of magneto-motive force, a pair of polepieces associated with the source, and a coil wound about at least one polepiece, the polepieces being so arranged that passage of a wheel through an air gap between the detector and a rail induces a voltage into an output circuit. A U-shaped magnet, Fig. 1, having polepieces 1 each carrying a coil 3 is mounted horizontally with the ends of the polepieces facing the head of a rail 9. The coils are connected in aiding relationship between the base and emitter of the transistor 12, Fig. 3, the base-collector circuit of which contains a relay 15. As a wheel flange 10 passes through the gap, between the polepieces and the rail, the relay 15 operates and contact 17 closes to operate a wheel counter (not shown). Contact 16 closes to operate relay 18 which is given a slow release by capacitors 19, 20. The time constant of this circuit is made such that relay 18 operates only once per train and the changeover contact 21 of the relay may be used to effect any required control action or alarm. In an alternative form of detector (Fig. 2, not shown), the U-magnet is mounted vertically and has only one coil. Circuits are also described in which two detectors are used, either connected in series or in parallel to complete the energizing circuit of a further device.
Patent GB-901778-A (GB)
Title: Stainless steel
IPC: C22C38/60
Filed: 1960-11-21
Abstract: In a hardenable straight chromium stainless steel comprising: .Cr.10-14% .C.0.07-0.14% .S and/or Se.0.001-0.5% .Mn.0.1-1.75% .Si.0.1-1.0% .Ni.up to 1% .Mo.up to 0.2% .W.up to 0.2% .N.up to 0.05% .balance Fe.1.  The variation of hardness as a function of tempering temperature is retarded by including 0.03-0.35% of columbium and tantalum with 0-0.5% vanadium.  The alloy can be made free machining by including .P.0.001-0.05% .and S.0.07-0.5%  The addition of up to 0.6% zirconium and/or up to 0.6% molybdenum for special purposes is also mentioned.
Patent GB-1086525-A (GB)
Title: Printing ink compositions
IPC: C08G18/40
Filed: 1964-10-02
Abstract: A printing ink composition comprises a solution in a volatile organic solvent of (1) a reactive mixture of a polymer containing hydroxyl groups and a prepolymer containing isocyanate groups, the initial ratio of isocyanate groups to hydroxyl groups being from 2:1 to 5:1, (2) a polymeric resin hardener for polyurethanes and (3) a pigment and/or a dye.  In examples, the polymers containing hydroxyl groups are polyhydroxy-polyesters of 1,4-butanediol and adipic acid, the prepolymers containing isocyanate groups are reaction products of tolylene diisocyanate, trimethylol propane and 1,4-hexanetriol, the hardeners are cellulose acetate butyrate and partially hydrolysed polyvinyl chloride-acetate resin, the pigments are titanium dioxide and red and yellow pigments, and the solvents are 2-nitropropane, n-butyl acetate, isopropylacetate and isobutyl acetate.  Other polymers containing hydroxyl groups mentioned are other polyester polyols, polyether polyols prepared by reacting alkylene oxides with polyhydroxy alkanes, trialkanolamines and polyamines, and castor oil and polyol derivatives of castor oil; other polyisocyanates and polyhydric alcohols are mentioned from which prepolymer containing isocyanate groups may be prepared; other hardeners mentioned are polyvinyl alcohol-acetate resin, polyvinyl butyral resin, cellulose acetate, cellulose acetate propionate and cellulose butyrate; other pigments and dyes are mentioned including carbon black, aluminium powder and bronze powder.
Patent GB-984243-A (GB)
Title: Improvements in transistor circuits
IPC: H03F1/52
Filed: 1961-11-09
Abstract: 984,243. Transistor circuits. SIEMENS & HALSKE A.G. Nov. 9, 1961 [Nov. 25, 1960], No. 40156/61. Drawings to Specification. Heading H3T. A transistor circuit is stabilized by means of a ceramic resistor connected in series with the emitter, the resistor having a positive temperature coefficient of at least 7% per ‹ C. and exhibiting a pronounced increase (e.g. 10<SP>2</SP> to 10<SP>3</SP> times) in resistance at a temperature approaching the safe upper temperature limit for the transistor. The resistor may be mounted within or in contact with the transistor housing. A further positive temperature coefficient resistor may be connected in the base circuit of a common emitter stage. Specification 714,965 is referred to. Reference has been directed by the Comptroller to Specification 747,784.
Patent GB-1163736-A (GB)
Title: Improvements in or relating to Dihalomethylene Substituted Steroids
IPC: C07J71/00
Filed: 1966-09-08
Abstract: 1,163,736. Dihalomethylene-substituted steroids. SYNTEX CORP. 8 Sept., 1966 [9 Sept., 1965; 20 Oct., 1965 (2); 22 Oct., 1965 (2)], No. 40196/66. Heading C2U. The invention comprises (1) a process for adding an α,α-difluoro methylene or -dichloro methylene group across the double bond of a 3-keto-#<SP>1</SP>- or 20-keto-#<SP>16</SP>-steroid or across the #<SP>6</SP>-double bond of a 3-keto-#<SP>4</SP>)<SP>6</SP>- or 3-keto- #<SP>1'4'6</SP>-steroid wherein the steroid is refluxed in a non-aqueous inert organic solvent with an alkali metal or alkaline earth metal salt of an acid WCX 2 COOH (where W is Cl, I or Br and X is Cl or F) at a temperature above the decomposition temperature of the salt; and (2) steroids of the formulµ wherein R<SP>1</SP> is H or CH 3 ; R<SP>2</SP> is H, Cl, F or CH 3 ; R<SP>3</SP> is H, F or Cl; R<SP>4</SP> is H, α- or #-CH 3 , α-OH or i together with R<SP>9</SP> alkylenedioxy; R<SP>4</SP> is H or CH 3 ; R<SP>5</SP> is H, acyl or t.h.p.; R<SP>6</SP> is H, alkyl, alkenyl or alkynyl; R<SP>7</SP> is H, #-OH, keto or Cl, R<SP>3</SP> being Cl when R<SP>7</SP> is Cl; R<SP>8</SP> is H, F, OH, Oacyl or Ot.h.p.; R<SP>9</SP> is H, OH or Oacyl or together with R<SP>4</SP> alkylenedioxy; R<SP>10</SP> is H, phenyl or fluoro-phenyl; and Z is a double or single bond. In the process any concomitantly formed #,#-dihalomethylene steroids may be removed by standard procedures. Hydroxy groups are generally esterified in the process, and to avoid this they may be protected. The products may be subjected to conventional steroid reactions. 17 # - Acetoxy - 5α - androst - 1 - en - 3 - one is prepared by dehydrobromination of 2α-bromo- 17# - acetoxy - 5α - androstan - 3 - one, prepared by bromination of the 2-unsubstituted compound. 16α -Methyl - 17α,20,20,21 - bismethylenedioxypregna - 4,6 - dien - 11# - ol - 3 - one is prepared by the conventional procedure from the 17α,21- diol-20-one.
Patent GB-877895-A (GB)
Title: Electrical insulating compositions
Inventor: SARGENT EDWARD HENRY GEORGE
IPC: H01B3/22
Filed: 1958-12-12
Abstract: Electrical insulating compositions comprise a microcrystalline wax, e.g. slack wax or petrolatum grease, an insulating oil and 1 to 5% by weight of the composition of a "low pressure" polyethylene or polypropylene.  The compositions may also comprise "high pressure" polyethylenes, high melting point Fischer-Tropsch waxes and polybutenes.  Compositions described comprise white petrolatum and mixtures of mineral insulating oils with microcrystalline waxes of melting point 72 to 82 DEG C. Specification 777,706 is referred to.
Patent GB-1073816-A (GB)
Title: Improvements in or relating to the mounting of hinged-sliding members such as doors
IPC: E06B3/50
Filed: 1965-09-21
Abstract: 1,073,816. Cabinets; tables. A. M. A. E. EGGERS-LURA. Sept. 21, 1965 [Oct. 9, 1964], No. 40257/65. Headings A4B and A4H. A hinged-sliding member, especially a cabinet door (14, 15) or a table leaf, carries two axially aligned pivot pins (12, 13) with projecting ends pivotally embedded in holes in fittings (7, 8) which are slidably engaged in grooves (5, 6) in the bottom and top walls (1, 2) of a cabinet, the inwardly arched free end of at least the lower pin (12) being releasably gripped by an adjustably spring loaded ball (19) carried in a tubular holder 18 fitted in the bottom wall (1). The doors (14, 15) are each slidable between a cabinet side wall (3) and an adjacent portion wall (11).
Patent GB-1088229-A (GB)
Title: Control device for precision gear production machines
IPC: B23F23/12
Filed: 1965-09-22
Abstract: 1,088,229. Gear-finishing. CARL HURTH MASCHINEN - UND ZAHNRADFABRIK. Sept. 22, 1965 [Dec. 9, 1964], No. 40307/65. Headings B3B and B3K. A gear finishing machine has means for compensating for temperature fluctuations controlled according to the deviations of a workpiece from desired dimensions. Cutting fluid is supplied to a shaving gear 19 through a pipe 23 from a centrifugal pump 27. Heat-regulating fluid is supplied from a heated sump 21 by a pump 20 to a heat exchanger 34 through a valve 37. The setting of the valve 37 or the heat of the sump is controlled according to the measurements obtained by gauges such as illustrated in Figs. 3 and 4 (not shown). In a modification, control is exercised by the setting of a valve 53, Fig. 5, or the heat of a coil 56 in a fluid sump 21, or the heat of coils 55 associated with a blower 54. In a further modification, the interior of a column (10), Fig. 6 (not shown), is sprayed. Radiant heat or heating pipes may be used. The tool 19 and headstock 15 may be sprayed with fluid.
Patent GB-1022043-A (GB)
Title: Metallised formazane dyes their production and their use
Inventor: STEINEMANN WILLY
IPC: C09B62/018
Filed: 1962-10-25
Abstract: The invention comprises metallized formazane dyes which in the metal-free form are of formula <FORM:1022043/C4-C5/1> wherein A1 is a phenyl or diphenyl radical which may be substituted and which may be the same or different in the two positions and X1 is an -OH or -COOH group in ortho position to the -N = N- or = N-NH-group.  The dyes are prepared (a) by reacting 2 moles of a diazo compound of an amine X1-A-NH2 with 1 mole of a compound of formula Z-CH2-CO-R wherein Z is -CN or -CO-R and R is a hydroxy, methoxy, ethoxy or amino group, with simultaneous or subsequent metallization or (b) reacting in 2 stages with separate amounts of 1 mol. of a diazo compound of the same or different amines and metallizing as above. Cyanoacetic acid is excluded as a reactant in process (b).  The dyes may be reacted at an intermediate or final stage of preparation with a component introducing a reactive group (i.e. a group capable of reacting with fibres bearing a hydroxyl and/or amino group to form a covalent linkage).  The dyes give red, blue, grey and black shades.
Patent GB-1212282-A (GB)
Title: Process for mixing a powdered polyvinyl acetal polymer with a liquid plasticiser
Inventor: SPURNIK VLADIMIR
IPC: C08K5/00
Filed: 1968-08-23
Abstract: 1,212,282. Plasticizing polyvinylacetal. REIFENHAUSER K.G. 23 Aug., 1968 [4 Sept., 1967], No. 40411/68. Heading C3P. A powdered polyvinylacetal is mixed with a liquid plasticizer by fluidizing the polymer preheated to 30-80‹ C., injecting the plasticizer at 30-150‹ C. and maintaining in a fluidized condition until solvation is effected. So-called solvating additives may also be added, viz. previously mixed polyvinyl acetal and completely solvated plasticizer, water or an aqueous dispersion or solution of a miscible polymer, e.g. polyvinyl alcohol. In examples, polyvinyl butyral is mixed with a triglycol dihexoate and optionally water.
Patent GB-1395807-A (GB)
Title: Compressed gas fuelled lighters
IPC: F23Q2/16
Filed: 1972-09-01
Abstract: 1395807 Gas lighters S T DUPONT 1 Sept 1972 [14 Sept 1971] 40525/72 Headings F4F and F4T A gas lighter comprises a burner b having an outlet O, a flame stabilizing member 9 disposed in the gas stream where it mixes with the surrounding air, said stabilizing member 9 being supported on legs 8 external of the burner b and mounted on a body B of the lighter to allow heat to be dissipated into the body B without flowing through the burner b. The flame stabilizing member may take the form of a single loop or crossed loops of wire, a prism, an inverted cone or a part on a lever controlling the gas outlet, in alternative embodiments.
Patent GB-1017802-A (GB)
Title: A textile card
IPC: D01G15/48
Filed: 1962-10-26
Abstract: In the removal of a carded web from a doffer, conveyer rollers are employed in co-operation a doffer comb.  The line of closest proximity of the rollers is approximately in the extended path of action of the doffer comb and the distance between the rollers is preferably such that the web is transported without being compressed.
Patent GB-1535116-A (GB)
Title: Method for heat treating fine-grain material
IPC: F27B7/32
Filed: 1976-09-30
Abstract: 1535116 Preheating and burning cement POLYSIUS AG 30 Sept 1976 [14 Oct 1975] 40566/76 Heading C1H [Also in Division F4] In a method of heat treating fine grain material such as cement raw meal wherein the material is preheated in a preheater 1 by hot waste gases from a rotary kiln 2, fuel in solid or liquid form is sprayed onto the surface of the material 17 immediately after its entry into the kiln from the preheater 1. Spraying is effected by means of a water-cooled lance 11 having a discharge opening which is arranged to direct the fuel substantially perpendicularly onto the surface of the material and is spaced between 0.3 and 1À5m, preferably 0À4 to 0.8m from the surface. Preferably the kiln is rotated at a speed of at least 35 m/min. As shown, the preheater is a multistage suspension preheater of the cyclone type. Alternatively (Fig. 3, not shown) the preheater may comprise a vertical shaft having a plurality of spaced apart constrictions (12, 13, 14) over each of which conical members (15, 16) are provided.
Patent GB-1309858-A (GB)
Title: System for providing an uninterrupted power supply
IPC: H02J3/30
Filed: 1970-08-24
Abstract: 1309858 Standby supply systems HEEMAF NV 24 Aug 1970 [16 Sept 1969] 40665/70 Heading H2H A standby supply for a single or polyphase system comprises an A.C. machine 12 having an automatic voltage control 12a, the machine acting as an A.C. motor when the main power supply is present and driving a flywheel 9 which, in the event of a main power supply failure, temporarily drives the machine as an auxiliary generator. The main power supply is connected to a conductor 1 and fed to a consumer load connected to a conductor 6 via a choke 3, a transformer secondary winding 4 and switches 2, 5. The A.C. motor drives the flywheel 9 via D.C. machines 10, 11 each provided with a field strength regulator 10a, 11a. In the event of a short circuit occurring in the main supply and before the switch 2 can be opened, the voltage supplied by the machine 12 at the point 14 is less than the machine voltage E and depends on the reactance of the choke 3 and the leakage reactance 15 of the machine. To increase the voltage supplied to the load to the voltage E, the transformer primary 16 is connected in parallel with the choke 3 and induces in the secondary winding 4 the necessary additional voltage. During the mains failure the A.C. machine 12 is driven by a diesel engine 7 or by accumulators. In a modification the choke is formed by the transformer primary winding.
Patent GB-1474901-A (GB)
Title: Fastener
IPC: F16L3/12
Filed: 1973-08-29
Abstract: 1474901 Cable fastener UNITED CARR Ltd 21 Aug 1974 [29 Aug 1973] 40757/73 Heading E2B A fastening device for tying together cables &c comprises two resilient, coaxial helical portion of opposite hand when unstressed and extending through at least one full turn of a helix, being self-supporting but able to be sprung open manually. As shown in Figs. 4, 5, the fastener 30 comprises helical portions 33, 34 wound on opposite hands and a base formed of plate 35, an arm 36 joining it to portions 33, 34 and stud portion 32 having two legs 37, 38 having shoulders 39, 40 for engagement with an aperture 41 in a panel 42. The fastener may alternatively have a screwhole (14, Fig. 1, not shown) for attachment to a support. It is preferably made from plastics e.g. nylon but may be metal or a metal alloy.
Patent GB-1406833-A (GB)
Title: Control means for vehicle washing machines
IPC: B60S3/06
Filed: 1972-09-04
Abstract: 1406833 Automatic control system KONELAMMINEN OY 4 Sept 1972 [2 Sept 1971] 40859/72 Heading G3R [Also in Division B7]  In a vehicle washing machine, the strain or dimensional change on a member supporting or driving a side or top brush is sensed to control the brush and/or machine movement so that the contact pressure of the brush on the vehicle is controlled. In the embodiment the torque on a motor shaft driving a rotating side brush is measured by an electrical strain gauge e.g. in a bridge, fed from a constant current source. The gauge output is passed through a differential amplifier and rectifying filter to comparators where it is compared with pre-set torque limits. If the sensed torque, proportional to the brush contact pressure, is not within these limits, the longitudinal motion of the machine is stopped and the brush moved towards, or away from, the vehicle e.g. by pneumatic or hydraulic means. The longitudinal motion is restarted when the torque re-enters the set range. The top brush may be similarly controlled by the measured horizontal and vertical components of the force on the brush. As an alternative to measuring the torque on the brush drive, the strain gauge (which can be replaced by a capacitative, inductive, Piezo-electric or semi-conductor device) may measure the torque on the brush shaft or the strain in a brush support member.
Patent GB-1116792-A (GB)
Title: A mine-face conveyor and means for moving the driving unit thereof
IPC: E21D15/60
Filed: 1965-09-24
Abstract: 1,116,792. Hydraulic apparatus. STAMICARBON N. V. Sept. 24, 1965 [Sept. 26, 1964], No. 40877/65. Heading F1P. The driving unit 1 of a mine face conveyer (not shown) is moved by a hydraulic jack 2, 3, 4 supplied with pressure liquid from a line 12 fed by a pump 5 by way of at least two mechanically coupled motors 8, 10 and at least one of which (e.g. 10) is capable of discharging into a lowpressure chamber e.g. a reservoir 20 whereby they drive the motor 8 causing it to operate as a pump and thus supply liquid of an increased pressure to the jack 2, 3, 4. The pressure liquid normally flows through both motors 8, 10 to the cylinder 3 but when an increased pressure is required a valve 17 is operated to connect the discharge from the pump 10 to the reservoir 20. A distributing valve 13 is disposed in the line 12 and is arranged to direct pressure liquid to one or other end of the cylinder 3 while connecting the opposite end to the reservoir 20. In a second arrangement wherein the low-pressure chamber is constituted by a second cylinder operable to move a lightly loaded part of the conveyer and continuously connected to the motor 10, the arrangement ensured that the volume flow to each cylinder is equal and hence the pistons thereof move in unison.
Patent GB-1174958-A (GB)
Title: Preparation of Acrylic Acid
IPC: B01J27/198
Filed: 1967-09-07
Abstract: 1,174,958. Oxidation catalysts. MITSUBISHI PETROCHEMICAL CO. Ltd. 7 Sept., 1967 [7 Sept., 1966], No. 40973/67. Heading B1E. [Also in Division C2] Catalysts used in the conversion of acrolein to acrylic acid in the vapour phase using molecular oxygen contain V, Sb and Ti together with P or Te or P and Te, these elements being present at least partly in the form of oxides. The catalyst may also contain one or more of Bi, Sr, Mo and W which are at least partly in the form of their oxides. The atomic ratio V:Sb:Ti:(P and/or Te) is preferably 1: (2-40):(5-4000):(1-80). In an Example a catalyst is prepared by mixing ammonium metavanadate, antimony oxide (Sb 2 O 3 ) in aqua regia, phosphoric acid and TiO 2  in the ratio 1:9:5:100 and the solution is evaporated to dryness. The remaining solid is then calcined at 540C and compressed into tablets having a specific surface area (BET) of 8 m<SP>2</SP>/g.
Patent GB-942355-A (GB)
Title: Improvements in or relating to electrical apparatus having a case or housing and a withdrawable frame or like support
Inventor: LEWIS HARRY STANLEY
IPC: H02B1/36
Filed: 1961-11-16
Abstract: 942,355. Two-part couplings; switch cases; switchboards. CHAMBERLAIN & HOOKHAM Ltd. Oct. 10, 1962 [Nov. 16, 1961], No. 40996/61. Headings H2B and H2E. [Also in Division H1] In electrical apparatus, e.g. meters, relays, comprising a frame 11 adapted to carry electrical components (not shown), removably supported in a case 10, a plurality of pairs of interconnectible contacts (not shown) being provided, one contact of each pair being mounted on the case and the other such contact being mounted on the frame so that the said pair can be interconnected only when the frame is fully engaged with the case, the case 10 is provided with a lock-barrel 12 and the frame 11 is provided with a coacting key 13, so that the full engagement of frame and case, and therefore the interconnection of the pairs of contacts, are prevented unless the key is the correct one to turn the lock-barrel; alternatively, the key may be mounted on the case and the lock-barrel on the frame. Turning the key with a tool 17 rotates a cylinder 14 having radial ribs 15; this enables the cylinder 14 to pass through an aperture in the frame having slots 16 through which ribs 15 pass, thus allowing full engagement of the frame in the case, as shown in broken lines in Fig. 3.
Patent GB-1036659-A (GB)
Title: A gas bearing assembly
IPC: F16C33/10
Filed: 1964-10-08
Abstract: 1,036,659. Bearings. BARDEN CORPORATION. Oct. 8, 1964 [Oct. 10, 1963], No. 41063/64. Heading F2A. A bearing assembly comprises a spherical fluid bearing combined with a cylindrical fluid bearing. In an embodiment, a spherical hydrodynamic fluid bearing 24 and a cylindrical hydrodynamic fluid bearing 42 have a common shaft 22, which carries an armature 20 of an electric motor 10 thereon. The bearing 24 has a two-part housing 28, 30 connected by a screw 34 and mounted in a casing 12 of the motor 10, and the bearing 42, which is self-aligning, has a spherical member 44, having a central bore 46 for the shaft 22, and has a two-part housing 50, 52 connected by a screw 56 and mounted in an end-plate 14 of the casing 12, the latter having a stator 16 therein. In another embodiment a spherical hydrostatic fluid bearing 70, Fig. 2 (not shown), and a cylindrical hydrostatic fluid bearing 88 have a common shaft 68. Pressurized fluid is supplied to a clearance 80 of the bearing 70, via an inlet 82, an annular space 84 and passages 86; and pressurized fluid is supplied to a clearance 94 of the bearing 88 via an inlet 102, an annular space 104, passages 106, annular spaces 108 and passages 110. The rotary movement of the spherical member 44, Fig. 1 (not shown), may be limited by pins 112, 114, Figs. 3 and 4 (not shown), mounted therein and co-operating with recesses 116, 118 in the two-part housing 50, 52.
Patent GB-1475363-A (GB)
Title: Wired broadcasting systems
IPC: H04H20/76
Filed: 1974-09-21
Abstract: 1475363 Wired broadcasting systems COMMUNICATIONS PATENTS Ltd 2 Sept 1975 [21 Sept 1974 30 Oct 1974] 41195/74 and 47066/74 Heading H4R A selector, for use in a programme exchange of a wired broadcasting system comprises a plurality of semi-conductor switches 15-18 each of which operates a respective electromagnetic switch 11-14 to couple a subscribers line 5 to one of four programme sources 1-4 via switches 7-10, the programme source providing a holding current for the respective transistor via the respective operated switch. Depression of a reset button 23 at the subscriber station turns off transistors 22 and 15- 18. At the end of the reset pulse charged capacitor 25 switches on transistor 15 to couple the subscriber's line to programme wire 1, which may transmit a picture signal giving information as to the programmes of the other sources. The subscriber dials the number of the programme required, the programme number being equal to the designation of the programme source minus 1, and the transistor chain steps to leave only the corresponding transistor conducting.