baber/WOPTO huggingface dataset:
Patent GB-1007579-A (GB)
Title: p,p-trifluoromethyl-azobenzene and -azoxybenzene and process for the production thereof
Inventor: JUCKER ERNST
Filed: 1961-12-18
Abstract: The invention comprises p,p1-trifluoromethyl-hydrazobenzene and p,p-trifluoromethyl-azoxybenzene, and the process of reducing p-nitrobenzotrifluoride with an alcoholic alkali metal hydroxide solution in the presence of a catalytic amount of a hydrogen transferring ketone and reducing the resulting azoxy-compound to the hydrazo-compound.
Patent GB-215162-A (GB)
Title: Improvements in diaries, pocket books and the like
IPC: C10L11/04
Filed: 1923-03-26
Abstract: 215,162. Smith, Ltd., T. J. & J., Smith, T. E., and Spurin, R. M. March 26, 1923. Card cases.-The tubular loops c for attaching refills to card cases are moulded from the lining of the cover at the bend, and loops d to coact with the loops c, are similarly formed on the refill, or formed by attaching tabs to the back of the refill. The member for securing together the interfitting loops may be a bone or like pin f having a hooked end.
Patent GB-464530-A (GB)
Title: Manufacture of acid amides substituted at the nitrogen atom
Filed: 1936-03-23
Abstract: Amides having a basic substituent linked to the nitrogen atom are obtained by treating a carboxylic acid or a metallic salt thereof, in the presence of an inorganic acid halide, with a polyamine in which a primary or secondary amino group and a tertiary amino group are linked by an open chain.  The reaction may be effected at about 100 DEG  C. in the presence or absence of a solvent.  Examples are given in which diphenylacetic acid, benzoic acid, and N-allyl-2-quinolone-4-carboxylic acid are treated with diethylaminoethylamine, in the presence of phosphorus oxychloride, to yield the corresponding diethylaminoethylamides.  Specification 438,659 is referred to.  N-Allyl-2-quinolone-4-carboxylic acid is obtainable from carbostyril carboxylic acid and an allyl halide in the presence of sodium hydroxide.  The Specification as open to inspection under Sect. 91 mentions acetic acid, palmitic acid, and oleic acid on the one hand, and piperidinoethylamine, diethylaminoethylethylamine, and bis-(diethylaminoethyl)amine on the other hand, as starting materials for the process of the invention. This subject-matter does not appear in the Specification as accepted.
Patent GB-595549-A (GB)
Title: Improvements in and relating to the starting of free piston type i.c. engine-driven compressors
IPC: F02B75/02
Filed: 1943-05-31
Abstract: 595,549. Free-piston gas generators. ENGLISH ELECTRIC CO., Ltd., and WELSH, R. J. May 31, 1943, Nos. 8650 and 13306. [Class 7 (i)] A free-piston type internal-combustion gasgenerator forming one of a number of generators delivering to. a common manifold 10 has automatic starting means including a valve 16 which, when the generator is at rest shuts off the generator outlet 9 from the manifold and a second valve 19' which connects the engine cylinder 1 either to atmosphere or to a vessel in which a predetermined pressure is maintained, both valves being automatically reversely operated in response to the starting of the generator. Air enters the compressor cylinders 2 of the generator through inlets 7 and compressed air is directed through pipes 8 and ports 1a to the cylinder, and. exhaust passes through ports lb to the pipe 9. The generator may be started by admitting air to the buffer cylinders 6 by means not shown. When the generator is at rest the pistons are set in starting position by a barring piston 11 which is moved against spring pressure by a fluid pressure device 23, which together with a running indicator 15 operates as described in Specification 595,547. The valve 16 closing the exhaust 9 is operated against an opening spring 17 by pressure in the pipe 14 in response to the stopping of the generator. Pressure in pipe 14 also acts against a spring 20 to open a valve 19 thus venting the pipe 8 either, as shown, to atmosphere or to a vessel at predetermined pressure. Both these valves are actuated automatically when the generator stops. When the generator is restarted valve 16 is first opened against spring 22 but the running indicator 15 causes removal of pressure from pipe 14 so that valve 16 is fully opened by spring 17 and valve 19 is closed by spring 20. The valves 16, 19 may be inter-connected and actuated by common actuator and the valve 16 may be closed before, but opened after the actuation of valve 19. The pressure in line 14 may act through hydraulic relays and the valves 16, 19 may be moved in both directions by fluid pressure.
Patent GB-1119376-A (GB)
Title: Thermoelectric assembly
IPC: F24F5/00
Filed: 1966-02-28
Abstract: 1,119,376. Refrigerators. T. M. ELFVING. 28 Feb., 1966 [22 March, 1965], No. 8679/66. Heading F4H. [Also in Division H1] A plurality of semi-conductor thermocouples (See Division H1) are arranged with their cold (or hot) junctions in contact with a liquid conduit and their hot (or cold) junctions in contact with tubular members (which may, but need not, surround the conduit) provided with fins. In Fig. 14 two such arrangements are used in a refrigerator with a cool compartment 171 and a freezing compartment 172, which are insulated from each other. In the freezing compartment, the conduit 189 is on the hot and the fins 191 on the cold side of the thermocouples so that the air in the compartment is cooled and the liquid heated. In the conduit 177 of a like arrangement outside the refrigerator the liquid is cooled and the ambient air heated. The cooled liquid passes, via conduit 184, provided with heat exchanging fins 187, through the compartment 171 so cooling it before returning to the thermocouple cooling arrangement in the compartment 172.
Patent GB-587881-A (GB)
Title: Improvements in line drop compensation of voltage regulators for alternating currentpower circuits
IPC: H02J3/12
Filed: 1943-05-31
Abstract: 587,881. Automatic control systems for electric supply. BRITISH THOMSON HOUSTON CO., Ltd. May 31, 1943, No. 8692. Convention date, May 29, 1942. [Class 38 (iv)] Voltage.-Regulators in separate circuits jointly supplying a load through a common line are compensated in respect of line drop and circulating current by means responsive to these values independently. Fig. 1 shows regulators 4 ... 7 for coils of three delta-connected tapchanging transformers supplying a load circuit 3 wherein current transformers 12 supplying the compensating circuits of the regulators are associated with a zig-zag transformer 13 and polyphase reactor 14 which, as regards any circulating current, have respectively low and high reactance. In consequence, all zero sequence, or circulating current, components flow through the compensating transformers 10 and all positive sequence currents flow through the line drop compensators 11. Relays 9 disable the regulators with conditions of excessive circulating current. Fig. 3 shows three parallel connected circuits 21 ... 21<11> which supply a common load by connections not shown. Auxiliary close-coupled current transformers 22 have their secondaries connected in series in a closed circuit so that the whole of the circulating current components are forced to flow through the compensating transformers 10 and effects of circulating current are neutralized. In a modified arrangement (Fig. 4, not shown), the transformers 22 used are no less than the number of paralleled circuits 21.
Patent GB-330905-A (GB)
Title: Improvements in vehicle brake mechanism
IPC: F16D51/56
Filed: 1929-03-18
Abstract: 330,905. Clark, D'A. M., (Bendix Brake Co.). March 18, 1929. Block and shoes acting on drums; compensating for wear.-In a brake comprising a first shoe serving to apply a second shoe and having a guide controlling one of the shoes, the position of the guide is adjusted while the brake is applied and means are provided to hold the guide in adjusted position. The slot 34 in the unanchoned shoe 14 is engaged by lateral projections 36 on an arm 38 clamped by a bolt 40 to the back plate. This bolt is loosened, the brake applied, and the bolt again tightened to adjust the position of the guide, a spring 42 connected to the anchored shoe 18 drawing the guide against the lower edge of the slot. A steady rest 48 may be formed on the upper end of the bolt 40, and a steady rest 32 is provided for the shoe 18. In a further modification a roller on a pin on the shoe 14 is guided in a slot in a member clamped to the back plate by two bolts, about the upper one of which it is pivoted by spring means when the bolts are loosened and the brake applied for adjustment purposes. In a further modification the slot is in the shoe and the pin is on the member and is provided with a steady rest for the shoe.
Patent GB-1153967-A (GB)
Title: Paint Containing Elemental Zinc
IPC: C09D5/10
Filed: 1968-02-22
Abstract: 1,153,967. Zinc dust paints. W. R. GRACE & CO. 22 Feb., 1968 [27 March, 1967], No. 8769/68. Headings C3B and C3R. [Also in Division C4] A paint comprising a phenolic, epoxy ester or epoxy polyamide resin vehicle and zinc dust contains 1-5% by weight of a zeolite. The zeolite may be of type A or type X (see Specifications 777,232 and 777,233) in powder form of particle size less then 5Á The zinc may be extended by ZnO in a ratio Zn: ZnO of 4: 1 and the total pigment content of the dry film may be at least 80%. Examples 1, 2 and 3 relate to epoxy ester, epoxy polyamide and phenolic base paints respectively, the other ingredients being Zn dust, xylol, naphtha, clay, ethanol, Co and Ca naphthenates, and an anti-skinning agent.
Patent GB-1200059-A (GB)
Title: Improvements in anode assemblies for the cathodic protection of metal structures
IPC: C23F13/10
Filed: 1967-02-24
Abstract: 1,200,059. Anode assembly for cathodic protection. MORGAN BERKELEY & CO. Ltd. and J.H. MORGAN. Feb.21, 1968 [Feb.24, 1967], No.8893/67. Heading C7E. Anode assembly for cathodic protection of e.g. a ships hull comprises several spaced apart electrically connected elongated anodes 10, insulating connecting elements 11 and an insulating shield 19a, 19b, 19c, end portions 19c being preferably half elliptical. Pb-Ag alloy anodes 15 are moulded into a resin glass fibre support 12 and welded to ships hull 18 via studs 17. Anode shield 19 is clamped between hull 18 and underside of support 12. End of each anode is electrically connected to adjacent anode by a cable passing through connector 11. Shield 19 and connectors 11 are made of resin glass fibre.
Patent GB-916393-A (GB)
Title: Improvements in or relating to multiplex pulse transmission systems for use in communication installations
IPC: H04J3/20
Filed: 1960-03-14
Abstract: 916,393. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. March 14, 1960 [March 13, 1959], No. 8940/60. Addition to 836,756. Class 40 (4). In a resonant transfer system in which a normal connection between subscribers involves the pulse interconnection of a plurality of highways in tandem, resonances of the type described in the parent Specification, to ensure discharge of the highways at the end of the pulse period, are arranged not only for normal connections but also for other connections such as tone signals, or operator's intrusion which involve a different number of highways. As shown a normal connection is established between subscribers Ab1, Ab2 via primary highways Tp1, Tp2 and secondary highways Ts1 Ts2 by pulsing contacts Ka1, Ka2, Kps1, Kps2 and Kss, so interchanging the charges on the capacitors C. Tone signals may be applied to circuit L<SP>1</SP>, C<SP>1</SP> connected by contacts Ki to Tpl. In the event of the tone signal being of the intermittent kind, the interruptions may be effected by failure to pulse contacts Ki during these periods. The values of the capacities Cp and Cs are therefore chosen in such a way that the highways are in the discharged state at the end of the pulse period in .all of the following cases: (a) Subscriber Ab1 connected to highway tp1 alone. (b) Subscriber Ab1 connected to tone signal source Sign via Tp1. (c) Subscriber Ab1 connected to subscriber Ab2 via Tp1, Ts1 Ts2, Tp2. This is achieved by adjusting the constants so that the resonant frequencies of the circuits involved are various multiples of the L, C circuit resonance frequency. If it is required for Cp to be larger than Cs (because of the capacities of the large number of Ka switches) it is shown that this can be arranged by using a larger value of C<SP>1</SP> (and consequently a smaller value of L1). Provision for operator intrusion by means of a circuit L<SP>11</SP>, C11, Fig. 2 (not shown), connected by a pulsed contact to Ts2 is also made. Here again C<SP>11</SP> has to be larger than C and L<SP>11</SP> smaller than L. Mathematical formulµ are provided.
Patent GB-544871-A (GB)
Title: Improvements in and relating to gas blast circuit breakers
IPC: H01H33/08
Filed: 1941-07-16
Abstract: 544,871. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. July 16, 1941, No. 8965. Convention date, July 16, 1940. [Class 38 (v) ] In a gas-blast switch, for example, as shown in Specification 544,017, prevention of the emission of flame in the wake of the movable contact 2 as it is withdrawn from the contactfingers 1<SP>1</SP>, is achieved by the creation of a space 11 above the hole 6' in the barrier' 6, which space is in direct communication at 10 with the blast-conduit 5, whereby a separate stream of air traverses the space 11 into the chute-passage 12 and either acts as a barrier to flame or drives the flame into the chute. The wall 14 is extended in the direction of contact-separation to provide the equivalent of a contact-pause. In a modification, Fig. 2 (not shown), the space 11 has no outlet passage 12 for the air from conduit 5, so that a higher pressure prevails in that space than in space 13 and prevents the entry of flame into the former space.
Patent GB-273793-A (GB)
Title: A device or apparatus for gripping or manipulating wire netting and the equivalent
IPC: B21F33/00
Filed: 1926-04-06
Abstract: 273,793. Trawford, C., and Coe, J. C. C. April 6, 1926. Appliances for erecting fencing; wire, &c. strainers comprises an appliance for manipulating wire netting &c. As shown in Figs. 1 and 2, the end of the wire netting is gripped by two L-shaped members a, b, the member a being provided with trunnions c for engagement in slots in lugs provided on the member b. Arms f secured to the arms are attached by chains to a straining device, such as that described in Specification 232,809. As the tension is applied the corner of the member b is pressed towards a face of the member a. More than one pair of arms may be provided. In addition the members a, b may be gripped at one or more portions of their length by means of screws h and nuts i as shown in Fig. 10. The L-shaped members may be replaced by circular members movable about eccentrically-disposed pivots, or by flat strips with arms similar to the arms f.
Patent GB-1153422-A (GB)
Title: Balancing of Rotatable Bodies
Inventor: JACKSON ERNEST RICHARD
IPC: G01M1/22
Filed: 1965-03-03
Abstract: 1,153,422. Measuring electrically. JACKSON & BRADWELL Ltd. June 2, 1966 [March 3, 1965], No.8988/66. Heading G1N. [Also in Division G4] In a dynamic balancing machine, the approximate magnitudes of the corrections required in two arbitrarily positioned balancing planes are computed in a circuit comprising two sets of potentiometer networks to which two signals are applied representing the two unbalance forces in two spaced bearing planes. The potentiometers are manually adjustable in accordance with the relative positions of the four planes and the sliders of the potentiometers of each network are connected to a rotatable knob carrying a scale movable over a fixed scale, the two scales being calibrated in units of the two parameters determining the position of one balancing plane with respect to the two bearing planes, the two parameters being set in register with each other. As described for a rotating body (D, Fig.1, not shown), the computations are based on the approximate equations:- where m and n are the corrections required in balancing planes (M) and (N) to correct unbalance forces x and y in bearing planes (X) and (Y), the bearing planes being spaced a distance A apart and the balancing planes (M) and (N) distances B 1  and B 2  from the bearing planes (Y) and (X) respectively. The two signals representative of x and y are supplied to terminals L, R, Fig.3, each connected to a three way switch S1 which is switched between first and second positions for computing the valves of m and n repsectively. As shown, for computing m, the signal representative of x is connected across a centre tapped potentiometer R1 and the signal representative of y is connected across centre tapped potentiometer NR2 whose slider is adjusted according to the value of B 2 -A / B 2  so that a signal representative of y B 2 -A / B 2  appears across leads E and is added to that from potentiometer R1. The sum is applied to network NL1 which multiplies it by factor A/B 1  to produce a signal representative of the required correction m which is amplified and indicated at MM. In an exactly similar manner the value of n is obtained with the switches S1 in their second positions. The sliders of potentiometers P1-P4 of network NL1 and potentiometer NL2 are ganged together to be driven by rotation of knob K1 Fig.2, carrying a scale calibrated in units of the distance A, which moves over a fixed scale calibrated in units of the distance B 1 . Similarly the sliders of the potentiometers of network NR1 and potentiometer NR2 are driven by rotation of knob K2. Thus by setting the values of A, B 1  and B 2  in register, the networks NL1 and NR1 multiply by A/B 1  and A/B 2  and potentiometers NL2 and NR2 by B 1 -A / B 1  and B 2 -A / B 2
Patent GB-622631-A (GB)
Title: Improvements in or relating to electric plug and socket couplings
IPC: H01R13/68
Filed: 1947-04-02
Abstract: 622,631. Two-part couplings. GENERAL ELECTRIC CO., Ltd., and SMITH, K. C. April 2, 1947, No. 8990. [Class 38 (i)] A fused " spider " plug comprises a flat insulating body 1 along the side edges 3, 4 of which flat contacts 5, 6 are secured by screws 8 and urged outwardly by springs 9. Also secured by the screws 8 are right-angled members 25 which engage the end caps 19 of cartridge or like fuses 11 arranged in inclined bores 16, 17 in the body, the other end caps 18 engaging washers 21 located in stepped portions 20 of the bores and to which the cores 22, 23 of a cable 12 are soldered, the said cable being secured in a slot 15 in the body by a clamp 14. Only one of the cores may be fused, the other core being passed through its respective bore to the other screw 8.
Patent GB-1071479-A (GB)
Title: Indole derivatives and processes for their production
IPC: C07D471/18
Filed: 1965-03-03
Abstract: The invention comprises polycyclic indole derivatives of the general Formula I <FORM:1071479/C2/1> wherein R1 and R2 represent hydrogen or methoxy and both X and both Y represent hydrogen or both X represent an additional bond corresponding to the dotted lines and both Y represent hydrogen or both X and both Y represent additional bonds corresponding to the dotted lines.  These compounds may be prepared by treating a C1 to C7 alkyl sulphate, alkyl sulphonate, aryl sulphonate, trifluoroacetate or nitrobenzoate of an alcohol of the general Formula II <FORM:1071479/C2/2> with an acid binding agent having a dissociation constant KB greater than 1 x 10-5, said treatment being performed in an inert solvent or diluent, and, if desired, reducing the reaction product so obtained until one or two molar equivalents of hydrogen has been taken up. The alcohols of Formula II may be prepared by reduction of esters of the general Formula III <FORM:1071479/C2/3> by means of complex hydrides and said alcohols then be esterified to the required ester reactants by, for example, reaction with acid halides or anhydrides in the presence of a base.  The compounds of Formula I may, together with at least one pharmaceutically acceptable carrier, be employed in pharmaceutical compositions, for example oral or parenteral compositions, having central depressant activity.
Patent GB-260165-A (GB)
Title: Improvements in means for securing tubes in headers or the like
IPC: F22G3/00
Filed: 1926-04-06
Abstract: 260,165. Spearing, A. H., and Hamlyn, W. R. April 6, 1926. Jointing tubes to flat headers. - In a heat exchanger, for example a superheater, a plurality of tubes 3 are secured at each end to a header at the upper surface by means of unions 4 detachable, as by screwing, from the tubes, spigotted into the header 1, and held in position by yokes 7, one for each tube, connected to the header, or parts fixed relative thereto, by bolts 8 external to the union. The unions 4 are preferably enlarged at their outer ends to a diameter equal to that of the tube 3 and the tube ends are screw-threaded to an extent only equal to the screw threading of the union.
Patent GB-671356-A (GB)
Title: Improvements in or relating to the production of solutions containing dissolved gallium and to the production of gallium therefrom
IPC: C01G15/00
Filed: 1948-03-31
Abstract: Alkali metal aluminate solutions containing gallium are treated, e.g., by the addition of say, lime or alkali metal hydroxide and a calcium salt, to the solution at a temperature above 100 DEG F to precipitate calcium aluminate, and a more concentrated solution of the gallium is produced, either by evaporation of the solution, or by precipitating and redissolving the gallium.  Precipitation may be effected by an acid material, e.g. carbon dioxide or sodium bicarbonate as in Specification 674,036, and the mixed alumina-gallium oxide may be calcined and dissolved in an acid or alkaline solution, e.g. caustic soda The solution may be electrolyzed for the production of metallic gallium (see Group XXXVI).  If desired, part of the dissolved aluminium may be precipitated as aluminium hydroxide prior to concentration of the gallium.
Patent GB-1179465-A (GB)
Title: Method and apparatus for Testing Circuits
IPC: G01R23/00
Filed: 1967-02-27
Abstract: 1,179,465. Measurement of harmonic distortion. WANDEL U. GOLTERMANN. Feb.27, 1967 [March 5, 1966], No. 9175/ 67. Heading G1U. The amplitudes of the harmonics generated by a test circuit x when a signal of frequency f s  is passed through it are measured at an intermediate frequency f f  after mixing the output of the test circuit with the output of a heterodyne generator 32 fed by two oscillators, one of which oscillates at the intermediate frequency and the other at the sum or difference of the intermediate frequency and the fundamental frequency of the signal f s , the output of the heterodyne generator being a frequency given by af s  Œf f  where a can take any integral value corresponding to the ordinal number of the harmonic being measured. The amplitude of the i.f. signal is indicated after the signal is passed through an i.f. amplifier and rectifier. In a modification, Fig. 4 (not shown) the second oscillator (410) feeding the heterodyne generator oscillates at a multiple of the above sum or difference frequency and its output is fed through frequency dividers (411, 415, 416) to a switch (412) either directly or through frequency converters (413, 414) which add to the outputs of the frequency dividers a multiple of the intermediate frequency f f ; by this means the switch is able to select one of several heterodyne signals depending on which harmonic of f s  is being measured. In another modification, Fig. 5 (not shown), the signal f s  is derived from the outputs of the two oscillators feeding the heterodyne generator, the output of the second of these oscillators being varied by a sawtooth waveform (512) and the amplitudes of the harmonics of f s  are measured on an oscilloscope supplied by a similar waveform (515). In a final modification the measurement of the harmonics is remote controlled by applying suitable control voltages to terminals (604, 605, Fig. 6, not shown) on a frequency divider and frequency multiplier in the heterodyne generator circuit.