baber/WOPTO huggingface dataset:
Patent GB-1177567-A (GB)
Title: Improvements in and relating to Arrangements for Automatic Focusing of Projectors.
IPC: G03B21/53
Filed: 1967-09-07
Abstract: 1,177,567. Slide projectors; focusing. ERNST LEITZ G.m.b.H. Sept.7, 1967 [Sept. 10, 1966], No.40925/67. Heading G2J. [Also in Division G1] Automatic focusing mechanism for a slide projector using differently mounted slides comprises a motor 16 driving a slide carrier 11 through rack 10 and pinion 14, the motor being controlled by a photo-electric device 31 responsive to a light beam from source 26 reflected from the surface of a transparency or its cover glass when said surface is at the focal plane of projection lens 6, there being a further photo-electric device 33 sensing the presence or absence of a cover glass and over-riding the effect of reflections from the outer face of a cover glass when present. Slide carrier 11 and rack 10 are mounted on two leaf springs 8a, 8b, and are spring-biased towards stop 13. The nose of slide changer 20 contacts two switches which actuate a magnetic clutch connecting motor 16 to pinions 14, and which actuate two bi-stable flip-flops 34, 35 to start motor 16. The reflected beam sweeps across detector unit 25a until, when a glass-less slide is in the focused position, light passes slit 30 to reach cell 31 whereby a trigger 36 switches off the motor through flip-flop 34. The transmitted beam is undeflected and does not reach cell 33. In the case of a glass-mounted slide, the transmitted beam through the slide is displaced by refraction and is passed by mask 33a for detection by cell 33. A first pulse from cell 33 therefore activates gate 39 through trigger 37 to pass the delayed pulse from trigger 36 and multivibrator 38 to close flip-flop 35 and open flip-flop 34. Motor 16 therefore continues to run until the beam reflected from the rear face of the cover glass closes flip-flop 34 as above described. The transparency is substantially co-planar with said rear face, and is therefore focused. The rack-and-pinion drive for carrier 11 may be replaced by a motor driven cam system. In this case the control is entirely by reflected light, a double photo-cell being used.
Patent GB-1460121-A (GB)
Title: Preparation of phthalaaldehydic acid from pentachloroxylene
IPC: C07C67/00
Filed: 1974-09-20
Abstract: 1460121 Preparation of phthalaldehydic acids GRUPPO LEPETIT SpA 5 Sept 1975 [20 Sept 1974] 40984/74 Heading C2C Phthalaldehydic acid is prepared by a process for making phthalaldehydic acid comprising reacting pentachloro-o-xylene with water at 80 to 180 C. in the absence of an aromatic sulphonic acid or a metal halide and in the presence throughout the entire reaction of phthalaldehydic acid. The reaction mixture may be heated at its boiling temperature at atmospheric pressure or in a pressure vessel to a temperature above its boiling temperature at atmospheric pressure.
Patent GB-1366737-A (GB)
IPC: C07D203/08
Filed: 1972-09-05
Abstract: 1366737 1-Methylaziridine derivatives SHIONOGI & CO Ltd 5 Sept 1972 [10 Sept 1971] 41149/72 Heading C2C The invention comprises compounds of formulae wherein R is 5-indanyl, 1,2,3,4-tetrahydro-2- naphthyl, 5,6,7,8-tetrahydro-2-naphthyl or 3,4- xylyl. These compounds are prepared by (1) halogenating or sulphating the alcohol RCHOHCH 2 NHMe and treating with an alkali the thus-formed intermediate RCHXCH 2 NHMe, where X is halogen or OSO 3 H; or (2) reducing the oxime RC(Me):NOR<SP>1</SP> where R<SP>1</SP> is H or acyl, with an aluminium hydride complex and methylating the 1-unmethylated analogue of I so formed. Also prepared are 1-(p-nitrobenzyl)-2- (1,2,3,4 - and 5,6,7,8 - tetrahydro - 2 - naphthyl)- aziridines. Therapeutic compositions for treating neuropsychiatric diseases by (e.g.) oral or parenteral administration, comprise compounds of the above formula, which have tranquillizing and antidepressant activity.
Patent GB-1357402-A (GB)
Title: Arrangement for the uncoupling of rail vehicles having automatic  central buffer couplings
IPC: B61G7/04
Filed: 1971-09-06
Abstract: 1357402 Uncoupling rail vehicles GERMANY MINISTRY OF TRANSPORT 6 Sept 1971 41394/71 Heading B7T An arrangement for uncoupling rail vehicle automatic central buffer couplings comprises a trackside installation 4 carrying contacts 8, 9 and 10 and a carrier 3 on the vehicle carrying contacts 5, 6, 7, the arrangement operating such that if uncoupling is required a switch 11 in an operating circuit 12 is closed manually or automatically and as the vehicle moves along track 2 contacts 5, 6 and 7 respectively engage contacts 8, 9 and 10 thereby completing circuit 12 and operating relay 13 which closes switch 14, in an operating circuit 15, actuating motor 16 which effects uncoupling. Circuit 12 is completed through the vehicle, track 2 and cable 20. In this embodiment only motor 16 is carried by the vehicle. In the Fig. 3 embodiment relay 23 is carried on the vehicle and when operated by engagement of contacts 5 and 8 closes switch 22 thus energizing motor M by bridging cables 21, 21 extending the length of a train and energized by the tractive unit. A combination of both embodiments may be provided.
Patent GB-1086569-A (GB)
Title: Steel and articles made therefrom
IPC: B65D41/48
Filed: 1966-09-16
Abstract: Articles for use at sub-zero temperatures down to -195 DEG C. are made from a martensitic stainless steel having the following percentage composition:- <TABS:1086569/C6-C7/1> The steel may be annealed at 980 DEG C.
Patent GB-1010259-A (GB)
Title: Improvements in and relating to ring mechanisms for binding papers and the like
IPC: B42F13/26
Filed: 1964-10-12
Abstract: 1,010,259. Loose-leaf binders. R. KRAUSE, F. ROMANN, and E. ROTH, [trading as ROBERT KRAUSE KOMM-GES.,]. Oct. 12, 1964 [Oct. 10, 1963], No. 41583/64. Heading B6E. In a pivoted-arch file, comprising two arches a, b attached respectively to abutting plates c, d held within a covering bar e, the arch b is attached to the underside of its plate d. When the file is mounted in a cover, Fig. 2, the arrangement permits the sheets to lie flat on the cover, which has openings h to receive the attachment part b<SP>1</SP> of the arch b. In Fig. 4, the file is attached to the edge of a board x, and the arch b has an extended U-shaped part b<SP>2</SP> which allows the sheets to be turned through 360 degrees.
Patent GB-1482544-A (GB)
Title: Reading optical-recordings
IPC: G11B7/09
Filed: 1974-09-25
Abstract: 1482544 Optical playback heads PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Sept 1974 [28 Sept 1973] 41695/74 Heading G5R In an optical playback head containing a pivoted reflecting element 1, Fig. 1, or 10, Fig. 2, which is adjusted by means of an electromagnetic system including a permanent magnet 2 or 19 and a driving coil 5 or 13, the reflecting element is formed, e.g. by polishing and coating with aluminium, on one face of a flat magnetic plate 2 or 11.
Patent GB-1347448-A (GB)
Title: Multi-system circular knitting machine
IPC: D04B15/84
Filed: 1972-09-08
Abstract: 1347448 Knitting-machines FOUQUETWERK FRAUZ & PLANCK 8 Sept 1972 [9 Sept 1971] 41784/72 Heading D1C A cylinder and dial machine is provided with a series of pattern drums which are advanced at least twice per machine revolution by an appropriate number of cams on the cylinder, so that two or more pattern motifs are knit side by side. If for example two motifs are to be knitted, the butts relating to the motifs are arranged alternately in the drums. The two cams are spaced at 180, or other appropriate setting corresponding to the desired fabric width. Examples of three patterns of various widths and of four patterns are described,
Patent GB-1128699-A (GB)
Title: Vulcanizable compositions
IPC: C08K5/37
Filed: 1967-09-14
Abstract: 1,128,699. Thiophenol derivative. UNIROYAL Inc. 14 Sept., 1967 [13 Oct., 1966], No. 41908/67. Heading C2C. [Also in Division C3] p,p<SP>1</SP>-Oxybis(thiophenol) is prepared by reacting p,pl-oxybis(benzenesulphonyl chloride) with metallic tin in the presence of aqueous hydrochloric acid.
Patent GB-1528869-A (GB)
Title: Thiotriazinediones and their use as herbicides
IPC: A01N43/64
Filed: 1976-10-08
Abstract: 1528869 Thiotriazinediones E I DU PONT DE NEMOURS & CO 8 Oct 1976 [10 Oct 1975] 41987/76 Addition to 1435585 Heading C2C Novel thiotriazinediones of the formula: wherein R<SP>1</SP> is (C 3-6 ) alkyl; (C 5-8 ) cycloalkyl optionally substituted by one methyl group; cyclohexyl substituted by one trifluoromethyl or two to four methyl groups; cyclohexenyl; decahydronaphthyl; 3-trifluoromethylphenyl; or wherein P is hydrogen, methyl, chlorine or fluorine, and Q is hydrogen or chlorine; and R 2  is (C 1-4 ) alkyl, are prepared by either (i) reacting thiocarbonyldimidazole with a corresponding carbamoylguanidine of the formula: (ii) reacting a corresponding 6-methylthiotriazine of the formula: with an amine of the formula: or (iii) reacting a carbamidoyl chloride of the formula: with a thiourea of the formula: The novel compounds possess herbicidal properties.
Patent GB-420331-A (GB)
Abstract: 420,331. Cooling cylinders. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and LYON, G., Ranmoor, Fulmer Road, Gerrards Cross, Buckinghamshire. Oct. 27, 1933, No. 29909. [Classes 7 (ii) and 7 (iii)] [See also Groups XIII and XXXIII] In an evaporative cooling system, the vapour from a header, or a centrifugal separator 13, such as that described in Specifications 316,007 and 327,074, [both in Class 23], in the cooling water circulation system is led through a pipe 17 to a tank 18 disposed at the leading edge of an aircraft wing above the fuselage. On either side of this tank are arranged condensers 25 and 29 below and above the wing, vapour passing from the tank 18 to either the lower or upper condenser of each pair, thence to the remaining condenser of each pair, and then to a condenser 34 disposed above the fuselage. The tank and condensers are all provided with draining connections to a hot well 20, the connection 42 for condenser 34 having a non-return valve 43. A pump 21 returns water from the hot well 20 to the separator 13, and a pump 15 returns it from thence to the cylinder jacket. Heating charge.-The steam pipe 17 may include a jacket round the inlet manifold of the engine. Alternatively the jacket may be arranged in a valve-controlled byepass to pipe 17.
Patent GB-1393149-A (GB)
Title: Engine performance indicator
IPC: G07C3/00
Filed: 1972-09-11
Abstract: 1393149 Monitoring engine performance HOWELL INSTRUMENTS Inc 11 Sept 1972 [9 Sept 1971] 42050/72 Addition to 1351314 Heading G1N The condition of a gas turbine engine on an aircraft is monitored by measuring the exhaust gas temperature EGT and modifying the signal in accordance with ambient temperature to produce a normalized value corresponding to standard day conditions which is indicative of engine trim. The EGT is measured by a thermocouple 200, 202 Fig.7 whose output is fed to an amplifier 204 together with a zero correction from resistors 212, 214 and a correction for ambient temperature derived by manual or automatic adjustment of resistor 222, to control the gain of amplifier 224, producing a signal on line 226 representing #= ambient temperature/5 lq. The corrected EGT signal is divided at 206 by the #signal on line 226 to produce a normalized ratio output which is indicative of the engine trim. The circuit includes means for obtaining the normalized ratio RPM/## which is alternatively available as an indication of engine trim, by feeding the RPM speed signal on line 232 to a computation unit 230 where it is divided by a ## signal on line 234.
Patent GB-953969-A (GB)
Title: Subscription television system
IPC: H04N7/16
Filed: 1962-11-08
Abstract: 953,969. Radio signalling; distributing music &c. BRITISH TELEMETER HOME VIEWING Ltd. Nov. 8, 1962 [Nov. 9, 1961], No. 42301/62. Drawings to Specification. Headings H4L and H4R. In a subscription television system a single masking signal is combined at the transmitter with the programme signals to prevent unauthorized reproduction of both the video and audio signals. The video transmitter and sound transmitter provide carriers which are spaced by 4.5 Mc/s. in the example described, and a masking signal transmitter and barker sound transmitter (for programme information) provide carriers which also are spaced by 4.5 Mc/s. The masking signal frequency is chosen to be an odd multiple of half the line frequency and is below but closely adjacent to that of the video carrier. Furthermore the level of the barker carrier is at least 6 db. above that of the video carrier and the level of the sound carrier at least 6 db. below that of the video carrier. With this arrangement, before operation of the coin mechanism, or when an unauthorized receiver is tuned to the transmission, the masking signal causes objectionable interference in the reproduced picture and the barker audio signal will be reproduced by the intercarrier detector due to the F.M. capture effect, since it is 12 db. above the sound signal level and beats with the masking signal which is 4.5 Mc/s. away. On operation of the coin mechanism a crystal filter is introduced at the receiver attachment which removes the masking signal so that the video signal is received correctly and the barker carrier can no longer produce a beat signal of 4.5 Mc/s. thus allowing the audio programme to be received. Control information may be modulated upon the masking signal which is separately detected at the receiver to provide pricing information for the coin receiving mechanism. Transmission may be by line or radio. Specification 914,328 is referred to.
Patent GB-1518870-A (GB)
Title: Ultrasonic inspection system for a moving strip
IPC: G01N29/34
Filed: 1976-10-12
Abstract: 1518870 Ultrasonic inspection apparatus JONES & LAUGHLIN STEEL CORP 12 Oct 1976 [3 Nov 1975] 42347/76 Heading GIG In apparatus for the ultrasonic pulse-echo inspection of moving metal strip having a defect echo signal gate and a backwall echo signal gate adjusted to provide a backwall signal gate interval of fixed width and a fixed delay between the closing of the defect signal gate and the opening of the backwall signal gate, there is provided means for automatically varying the time of closing of the defect signal gate in response to changes in the relative position in time of the backwall echo signal with respect to the backwall signal gate interval so as to keep that gate interval in coincidence with the backwall signal. When commencing operation of the apparatus, a search is made for the coincidence of a backwall echo signal with the backwall gate interval by incrementally varying the time of closing of the defect gate, and when coincidence is detected this is verified over a predetermined number of pulses
Patent GB-1528904-A (GB)
Title: Continuous loop tape cartridges
IPC: G11B23/07
Filed: 1974-10-01
Abstract: 1528904 Tape cartridge RECAL ZONAL CASSETTES Ltd 30 Sept 1975 [1 Oct 1974] 42554/74 Heading B8M (Part B) A tape pack carrier in a tape cartridge of the general kind disclosed in Specification 1,528,903, e.g. for high speed magnetic or video tape, comprises at least one duct, preferably opening on the peripheral wall of the carrier hub, for conveying air to provide an air-bearing for the tape at least between the innermost turn and the peripheral wall of the hub. The duets may open in axially aligned or inclined groups of slots spaced around the circumference of the hub and optionally of an annular flange 22 of the hub also. Preferably a nozzle 28 is also provided for directing an air jet tangentially of the tape pack into the space between the outermost turn of the pack and length of tape pack and length of tape leading back on to the pack as the outermost turn. Air from the hub opening provides an air bearing during start up of the tape while air from the nozzle 28 is used alone or together with the former during full speed tape running. The hub 10 may be formed as a one-piece plastics cover member for disposition over a first hub of the tape cartridge so that the duet inlets of the hub are in register with corresponding ducts on the cartridge. Guide means for the tape may include a vacuum column 14 for maintaining a predetermined tension on a free loop of the tape.
Patent GB-976182-A (GB)
Title: Improvements relating to machines for the production of tufted carpets
Inventor: LORD JACK PRICE
IPC: D04H11/04
Filed: 1959-12-15
Abstract: Relates to machines of the kind shown in Specifications 658,791 and 704,335 for making pile fabric by folding yarns between blades on an endless chain and applying a backing to the peaks of the resulting corrugations in the yarns.  According to the invention, the return run of the endless chain is supported by rollers disposed in close succession, the rollers being mounted in one or more frames which can be adjusted in height at several points along the machine. Specifications 976,181, 976,183, 976,184 and 976,185 also are referred to.
Patent GB-978643-A (GB)
Title: Pressure reservoir
IPC: F15B1/10
Filed: 1961-11-29
Abstract: 978,643. Hydraulic accumulators. V. LANGEN, [trading as LANGEN & CO.]. Nov. 29, 1961 [Nov. 30, 1960], No. 42749/61. Heading F1P. An hydraulic accumulator of substantially spherical shape comprises two substantially hemispherical shells 1, 2, Fig. 1, one being larger than the other and having at its rim a cylindrical extension 3 which fits tightly over the outside diameter of the smaller hemisphere and is stiffened to offer greater resistance to expansion under internal pressure than does the rim of the smaller hemisphere. The end of the extension may be bent over a spring ring 7, which may fit into grooves in the shells, by a reinforcing ring 9. An inner ring 10, or a bent over portion of the rim of the smaller hemisphere, serves to strengthen the latter and to secure a packing ring or flexible partition 13 to the wall of the accumulator, the partition being used when it is desired to keep the liquid supplied through a port in one hemisphere from the gas supplied through a port in the other, and the packing ring being used when separation between the gas and liquid is unnecessary. The rim of the smaller hemisphere may have a cylindrical extension 4 or a curved portion 18, Fig. 3, which receives the packing ring or the bead 12 of the partition. The reinforcing ring may be clamped or shrunk on to the accumulator or the ring can be dispensed with and the end of the extension 3 be bent to stiffen the rim of the larger hemisphere.
Patent GB-1159448-A (GB)
Title: Thread Cutting Device for Circular Knitting Hosiery Machines and the like
IPC: D04B15/60
Filed: 1967-09-20
Abstract: 1,159,448. Knitting-machines. G. BILLI & C. S.p.A. 20 Sept., 1967 [30 Sept., 1966], No. 42818/67. Heading D1C. In a circular machine having a welt dial carrying a serrated thread cutting ring 44 the dial drive is arranged to advance the ring once a thread has been entrained so that the thread is cut with a smaller end. The dial is driven from the cylinder drive via a shaft 7 driving gear 17 loose on the dial shaft 5. A ring 19 carried by gear 17 has a peg 21 whose large diameter part engages a hole 25 in an arm 23 of shaft 5 when the dial in its normal, raised, position. When the dial is lowered the smaller diameter part 21A of the peg maintains the drive to the dial but allows relative movement. When a yarn has been entrained the top 37 and the shaft 5 is rotated by a two arm lever 33, controlled by cams 29, to advance the ring a distance X. The usual relative dispositions of ring and cylinder is restored when the dial is raised and the larger part of peg 21 re-engages hole 25.
Patent GB-1511134-A (GB)
Title: Manipulatable read-only memories
IPC: G11C17/06
Filed: 1975-04-16
Abstract: 1511134 Read-only memories HEIMANN GmbH 16 April 1975 [27 May 1974] 42862/77 Divided out of 1510731 Heading G4C [Also in Division H1] A manipulatable read-only memory comprises a plurality of row conductors and a plurality of column conductors arranged in matrix form, respective rectifiers and photoresistors bridging the crossing points of the conductors, each rectifier being constituted by a rectifying contact formed between one conductor and a semiconductor intermediate layer which forms an ohmic contact with the other conductor, the photoresistors and the semiconductor intermediate layers being formed of radiation transmissive materials. The photoresistors may be CdS, CdSe, CdS x Se 1-x  or PbS, the one conductor Ag, the semiconductor intermediate layer Se and/or Te, and the other conductor A1, Ga, In or SnO 2 . The conductors, the photoresistors and the semiconductor intermediate layers may be vapour-deposited on to a substrate. This Specification and Specifications 1,511,135 and 1,511,136 are divided from parent Specification 1,510,731.
Patent GB-1310816-A (GB)
Title: Oscillator circuit arrangements
IPC: H03B5/18
Filed: 1970-09-10
Abstract: 1310816 Oscillators SIEMENS AG 10 Sept 1970 [11 Sept 1969] 43265/70 Heading H3F An oscillator circuit arrangement comprises a parallel resonant circuit C 1 , L 1 , wherein the inductive arm L 1  further includes a series resonant circuit 2 whose resonant frequency is substantially equal to that formed by the direct connection of C 1  across L 1 . The introduction of a series resonant circuit 2 having a steep gradient of frequency versus reactance characteristics about the resonant frequency minimizes the frequency variations of the parallel tuned circuit C 1  L 1 , with load changes. The circuit 2 may be constituted by open ended quarter-wave cavity resonators (3, 4, Fig. 2, not shown) coupled via an annular slot in a further cavity resonator (1) forming the parallel resonant circuit. A thermionic valve (6) having an anode (7) and a grid connector ring (8) is enclosed within a cavity resonator (1).
Patent GB-999845-A (GB)
Title: Continuous separation of an isomer mixture containing ortho-, meta-and paradichlorobenzene and trichlorobenzene
IPC: C07C17/38
Filed: 1963-11-04
Abstract: A process for continuously separating ortho-and para-dichlorobenzene and trichlorobenzene from a mixture of ortho-, meta- and para-dichlorobenzene and trichlorobenzene wherein the mixture is distilled to give a residue consisting of orthodichlorobenzene and trichlorobenzene, which is separated by another distillation, and a distillate consisting of meta- and para-chlorobenzene which is conducted through a worm press in which is maintained a temperature gradient increasing towards the discharge opening from 0 DEG  C. to the melting point of para-dichlorobenzene, so that the liquid constituents of the mixture are removed through openings in the worm press and pure paradichlorobenzene is removed at the end of the worm press, the liquid fractions with a high paradichlorobenzene content are returned to the worm press and the fluid fraction with a low paradichlorobenzene content is cooled to form a crystal mass which is centrifuged to give solids which are returned to the worm press and liquid fractions with a high metadichlorobenzene content which are chlorinated until the meta-isomer is transformed into trichlorobenzene and the mixture thus obtained is returned to the distillation.  A suitable worm press process is described with reference to a Figure.
Patent GB-1142130-A (GB)
Title: A motor vehicle braking system
IPC: B60T1/06
Filed: 1967-09-25
Abstract: 1,142,130. Vehicle brake arrangements. DR.- ING h.C.F. PORSCHE K.G. 25 Sept., 1967 [18 Oct., 1966], No. 43506/67. Heading B7H. [Also in Division F2] In a motor vehicle braking system, the hand brake system (2), Fig. 1 (not shown), is operative on the vehicle rear axle differential gear 15. As shown, pivoting of the hand lever (10) is operative through linkage (11) and a lever 12, to rotate a shaft 13 supported in a limited slip differential housing 14 and carrying a cam 16 operating in a lug follower portion 17 of an arcuate V-shaped brake member 18, to apply the member against a V-shaped groove 26 in the differential cage 27. The vehicle braking system also includes a foot-operated pedal acting through two master cylinders (4), (5), having independent hydraulic lines, on tandem wheel brake cylinders operative on disc brakes on the vehicle wheels.