baber/WOPTO huggingface dataset:
Patent GB-1225347-A (GB)
IPC: H02G5/08
Filed: 1969-03-31
Abstract: 1,225,347. Two-part couplings; distribution arrangements. SQUARE D CO. 13 March, 1969 [7 May, 1968], No. 16652/69. Headings H2C and H2E. Power bus-bars 30, insulated and supported by members 32, 33 are housed in an elongated bus-duct section of the kind described in Specification 1,143,602, the bus-duct including a separate uninsulated ground bus-bar 36 mounted in electrical contact with the inner surface of the housing wall 25. Recurring access openings alternately spaced in side walls 23 allow connectors (44, Fig. 4, not shown) to be plugged in to tap off power by engaging bared portions of the insulated bars 30; a ground connector jaw 39 secured to the bus-bar 36 is engaged by the ground connector element of the plug-in connector to provide continuity of the low impedance ground path. The power busbars 30 and ground bar 36 all extend into a joining portion 22 (Fig. 6) at which each section of the bus-duct can be connected to a like section in series. The portion 22 comprises tie-plates 57, insulating plates 58, 60, a bolt 50 with an insulating sleeve 52 and nut 51, spring washers 55 and a wave washer 56. A second embodiment relates to bus-duct section 70 (Fig. 9), of the kind described in Specification 1,143,601, and is formed of walls 75, 76 which may be identical, and members 77 which may also be identical and, comprises insulated power bus-bars 78 and a ground busbar 83. The construction of the joining section (Fig. 10, not shown] of this embodiment is generally similar to that of the first one.
Patent GB-1225430-A (GB)
IPC: H01J49/32
Filed: 1968-08-19
Abstract: 1,225,430. Mass spectrometers. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. 19 Aug., 1968, No. 39529/68. Heading HID. In a mass spectrograph unwanted background irons produced in the ion source 2 are eliminated in one or more quadrupole mass filters 4 interposed between the exit slit 3 of the iron source and the entry slit 7 of the analyser section proper which, as shown, comprises an electrostatic analyser 9 and a magnetic analyzer 10.
Patent GB-1227407-A (GB)
IPC: H03F3/343
Filed: 1968-05-21
Abstract: 1,227,407. Transistor amplifying circuits. CONSTRUCTIONS RADIOELECTRIQUES ET ELECTRONIQUES DU CENTRE. 21 May, 1968 [26 May, 1967], No. 24212/68. Heading H3T. A wide-band A.C. amplifier A, Fig. 1, supplied with a signal input at input terminal al from source E, is provided with a pair of impedances Z1, Z2 such at their common point C the signal voltage developed from the output terminal S is equal to that from the input terminal E. The residual signal at point C comprises dift in the amplifier A and this is amplified in an auxiliary narrow-band D.C. amplifier B of low drift and applied to a second input terminal a2 of amplifier A in such a sense as to reduce the drift. A current Ib1 may be introduced at point C to offset the zero of the system. In an embodiment, amplifier A comprises field-effect transistor Q1, Fig. 3, the source of which drives via capacitor C1 the base of junction transistor Q2. Transistor Q2 is in series with a further transistor Q3, the base of which is coupled to the emitter of transistor Q2 by means of Zener diode Z. The collector of transistor Q3 drives an emitter-follower output stage Q5, overall negative feed back being provided by means of a path comprising potentiometer Z<SP>1</SP>2, Z<SP>11</SP>2 and resistors Z1, Z2 which are shunted by capacitors. The auxiliary D.C. amplifier deriving its input from point C has as first stage a double field effect transistor Q6 the two transistors of which are connected as a long-tailed pair: potentiometer R3 is adjustable for cancellation of any residual differential input voltage. The double transistor Q6 drives a further narrow-band D.C. amplifier B<SP>1</SP> the output of which is applied to the base of transistor Q4.
Patent GB-1228326-A (GB)
IPC: B60G11/58
Filed: 1969-10-23
Abstract: 1,228,326. Road vehicle spring suspension. GENERAL MOTORS CORP. 23 Oct., 1969 [29 Nov., 1968], No. 52084/69. Heading B7D. [Also in Division F2] Suspension means for a motor vehicle comprises a coil spring 28 disposed between upper and lower spring seats 26, 24, and an auxiliary air spring 30 which is in radial contact with the coils of the spring 28 and axial contact with the lower spring seat 24 when inflated and collapses in concertina fashion when deflated to a position clear of the coils and the lower spring seat. As shown the springs are interposed on each side of a vehicle between a frame side rail 4 and a bracket 10 on a rigid rear axle housing 8. The air spring 30 is selectively connectible to an air pressure source 36 or to atmosphere through a manually operable valve 40 or a valve responsive to the suspension level. A suspension control arm 16 is pivotally connected to each side rail 4 and bracket 10.
Patent GB-1229799-A (GB)
IPC: H01H33/666
Filed: 1967-11-13
Abstract: 1,229,799. Vacuum switches; electromagnetic actuation of switches. ENGLISH ELECTRIC CO. Ltd. 12 Nov., 1968 [13 Nov., 1967], No. 51601/67. Heading H1N. A vacuum switch 10 or other interrupter is urged towards its open position by a magnetic force produced by a coil in series with its contacts, the magnetic force normally being overcome by the force of a holding device 15 but becoming sufficiently large, when an overload occurs, to drive the contacts to the open position. The vacuum switch is coupled by a lost motion device 22 to the armature 16 of the magnetic actuator 15 which comprises a permanent magnet providing a holding force and a flux diverting coil which may be energized to supplement the force to move the contacts to the closed position or to overcome it to release the contacts. The armature 16 is also coupled to an aluminium alloy disc 40 which co-operates with the series coil 36. On overload disc 40 is repelled by coil 36 to overcome the bias of the permanent magnet. Disc 40 may be replaced by a second coil, either shorted or connected to coil 36 in series opposition (Fig. 2, not shown) or alternatively by a coil attracted by coil 36 (Fig. 3, not shown). The permanent magnet may be replaced by an energized electromagnet which may serve as a no-volt release. Alternatively the actuating device 15 may be replaced by a bi-stable device having two armatures as described in Specification 884,726. A three-phase switch may have either a common or individual actuating devices 15.
Patent GB-1230526-A (GB)
IPC: G03G15/00
Filed: 1969-05-21
Abstract: 1,230,526. Electro-photographic apparatus. RANK XEROX Ltd. May 21, 1969, [May 24, 1968] No. 26001/69. Heading G2H. An electro-photographic apparatus has an endless photo-conductive belt 12 which is uniformly charged by a corona charging device 13, exposed imagewise at a station A to an original D, and before development of the belt is selectively discharged by a lamp LMP-5, whereby areas not required to be developed e. g. areas between latent images are discharged by the lamp LMP 5. The lamp LMP 5 is controlled by a circuit controlled by a logic (L) Fig. 3 (not shown) such that the lamp is maintained in "stand-by" condition to produce less than full illumination. A short duration pulse triggers the lamp to produce full illumination when required to effect discharge.
Patent GB-1230911-A (GB)
IPC: G01S7/28
Filed: 1969-03-07
Abstract: 1,230,911. Pulse radar discriminators. BURROUGHS CORP. 7 March, 1969 [8 March, 1968], No. 12135/69. Heading H4D. In dynamic hit-width discriminators for radar, a received video signal is supplied to quantizer 11 (Fig. 1) passing output to set input of flip flop 13 for input exceeding a threshold, and otherwise passing output to the reset input. Fip flop 13 energizes flip flop 15 with corresponding signals during the next clock period, while the set outputs of 13, 15 feed AND gate 17 to produce 1 or 0 output for similar or dissimilar inputs to AND gates 19 and 21, while inverter 23 produces complementary signal clearing down counter 25. The outputs from the counter stages are supplied to AND gate 27 enabled for all zero input, whose output is supplied direct to gate 19 and inverted to gate 21 which when enabled initiates the count down at 25, while gate 19 is enabled to signal a video hit when its inputs are similar. Initially, counter 25 is preset to a binary value corresponding to the normal pulse return by preset unit 29, which may comprise two input AND gates with one input set at 1 or 0 binary level and a second input from gate 19 enabling the gates for similar input to set a count. A table of binary presets for different pulse widths is quoted. For a normal width radar return, flip flop 13 is set by video signal exceeding threshold to provide 1 level output, and on next clock period flip flop 15 is set and gate 17 enabled. Inverter 23 applies complementary signal to clear counter 25 on reset of either 13 or 15, when 0 level signals are applied to enable gate 27 and apply 1 level signals to gate 19. Gate 19 is enabled from gate 17 to signal a hit and apply the preset to counter 25. Gate 27 is disabled and 1 level signal applied over inverter 31, to enable gate 21 and initiate a count. When the incoming signal value falls below threshold within normal return value, flip flops 13, 15 are reset and counter is cleared without countdown through zero, and the discriminator operates to convert normal return into a single pulse signalling a hit (Fig. 2, not shown). For a stretched video radar return, multiple hits are signalled at the rate at which the system is capable of generating separate video returns, and flip flops 13, 15 remain set for a time interval, and the first hit is signalled as above. The counter is enabled to count down through zero, at which the inputs to AND gate 27 are identical and a pulse is applied to gate 19 to a signal a further video hit and preset the unit 29 of counter 25. Simultaneously gate 21 is disabled by inverter 31 for a single clock period, and on preset the gate 27 is disabled, and gate 21 enabled to permit the counter to count down again. Reset of flip flops 13, 15 clears the counter without traversing zero, so that two hits are signalled for the stretched return (Fig. 3, not shown). Thus the system converts a normal return into a single pulse of width equal to a basic clock period, and a stretched return into pulses generated at a rate corresponding to that of normal video return generation.
Patent GB-1231021-A (GB)
IPC: C08K5/37
Filed: 1968-04-16
Abstract: 1,231,021. Hydrazides and ureides. ARGUS CHEMICAL CORP. 16 April, 1968 [18 April, 1967], No. 17857/68. Heading C2C. [Also in Division C3] Compounds having the structure or wherein X is O or S ; n is 1 or 2; R 1  is a bivalent group which is a C 1-2  alkylene radical, an alkylene radical including as substituents C 1-12  alkyl, C 6-10  aryl, hydroxy or halogen, a C 6-10  arylene radical or such a radical including the substituents named above, nitro and alkoxy of C 1-12  ; R 2  is H, C 1-12  alkyl, C 6-10  aryl or alkaryl or aralkyl of C 7-10 , or such a radical including any of the above substituents or mercapto or wherein Z is H, OH or mercapto and R<SP>1</SP> is H or C 1-4  alkyl and R 3  is H or -NHR 1 Z ; and wherein the R's and X's in the same compound may be the same or different are prepared as follows: (a) compounds of type (1), where X=O are obtained by reacting HSR 1  COOC 2 H 5  with H 2 NNHR 2  ; compounds of type (1) where X= S are obtained from HSR 1 CONH 2 , P 2 S 5  and H 2 NNHR 2  ; compounds of type (2) are obtained by reacting HSR 1 NH 2  ; with R 3 NHNCX ; compounds of type (3) are prepared from dithio-bis- (carboxylic acid esters) or thio or dithio bis-(thio acid amides) with a hydrazine; compounds of type (4) are obtained by reaction of a thio or dithio bis-amide with an isocyanate or isothiocyanate; compounds of type (5) are obtained by a combination of the previous methods as are relevant. Amongst the compounds prepared in the examples are mercapto acethydrazide, bis-mercaptoacethydrazide, # - mercaptopropiono - o - hydroxybenzoyl - bis - hydrazide, mercapto acetamido- N - o - mercaptophenyl - thioureide and N-#- mercaptoethyl-N<SP>1</SP>-salicyl-amidoureide.
Patent GB-1239359-A (GB)
IPC: G01J1/02
Filed: 1970-03-16
Abstract: 1,239,359. Photo-electric microscopes. ERNST LEITZ G.m.b.H. March 16, 1970. [March 27, 1969 No. 12549/70. Addition to 1, 055, 712. Heading G1A. [Also in Division G2] The microscope accessory forming the subject matter of parent Specification is modified for use as a two-path photo-meter. The modifying unit III is fitted between units II and I, the latter of which is mounted on the eyepiece of the microscope. Unit III comprises field lenses 21, 22 which with lenses 15, 16 of the other units, focus exit pupil P 2  of the microscope on the photomultiplier 17. Two optical paths are formed by a partially reflecting circular disc which as it rotates directs light from adjustable diaphragm 20, illuminated by source 18, alternately via prisms 28 and 27 and via mirror 31 and prisms 30 and 29, to the observation unit I, or light from the microscope back through these alternate paths to the photo-multiplier 17. Prisms 28, 30 and 27, 29 are displaceable for observation purposes.
Patent GB-1257040-A (GB)
IPC: C08F4/42
Filed: 1968-12-31
Abstract: 1,257,040. Polymerisation catalysts. SOLVAY & CIE. 31 Dec., 1968 [17 Jan., 1968], No. 61844/68. Heading B1E. [Also in Division C3] A catalyst for the polymerisation of olefins comprises an organic compound of silicon having at least one Si-H bond and a product resulting from the reaction, performed in the liquid phase and in the absence of moisture, in which inactivating overheating is avoided, wherein a compound of a transition metal of Group 1Va Va or VIa is bonded on to a solid support comprising particulate magnesium hydroxide.
Patent GB-1258033-A (GB)
IPC: G01N31/22
Filed: 1970-05-27
Abstract: 1,258,033. Dihydropyran derivatives. LONZA Ltd. 27 May, 1970 [29 May, 1969], No. 25355/70. Heading C2C. 3 - Haloacetyl - 6 - halomethyl - 2,4 - dioxo- 2,3-dihydro-4H-pyrans are prepared by halogenation of diketene to form a haloacetoacetic acid halide and reacting this with a mixture of an aliphatic carboxylic acid and a secondary amine. The products may be used as spray reagents in the chromatographic determination of amines.
Patent GB-1259261-A (GB)
IPC: A62C13/00
Filed: 1970-01-27
Abstract: 1,259,261. Pressurised fire extinguishers. COMPAGNIE CENTRALE SICLI. 27 Jan., 1970 [7 Feb., 1969], No. 3960/70. Heading A5A. A fire extinguishing head, as shown, includes a body 1 secured to a container 2 and a hollow handle 3 pivotally connected with the body 1 by means of a spindle 4 so that it can be pivoted and housed within a flanged extension 5 of the body 1. A capsule 6 is held within the handle 3, and the compressed gas is fed into the container via the tube 8. A valve 9 is provided in the tube and a hollow striker 10 screwed above the valve. The striker is surrounded by a frustoconical recess 11, with an annular packing 12 inserted in the annular groove adjacent the recess, to ensure sealing engagement with the lower end of the capsule when housed in the extension 5. The body 1 also includes a pipe 14, connecting the container 2 to the nozzle 15, part of which is yieldable.
Patent GB-1264737-A (GB)
IPC: C07C69/88
Filed: 1970-06-18
Abstract: 1,264,737. Salicylic acid derivatives containing sulphur. MERCK & CO. Inc. 18 June, 1970 [25 June, 1969; 20 April, 1970], No. 29538/70. Heading C2C. Novel compounds I (including anhydrides and salts thereof) where R is OH, NH 2 , alkoxy, mono- or di-alkylamino, dialkylamino - alkyl - amino, phenylamino, dialkylaminoalkoxy, hydroxyalkoxy, polyhydroxyalkoxy, alkoxy-alkoxy, optionally substituted phenoxy, phenalkoxy, hydrazino, morpholino, piperidino, pyrrolidino, hydroxyalkylamino or a N-attached radical derived from an amino-acid, R 2  is H, acyl, alkyl or alkoxycarbonyl, R 3  is H, halogen, alkyl, haloalkyl, alkoxy or cycloalkyl, each X which may be the same or different is H, alkyl, halogen, OH, alkoxy, haloalkyl, acyloxy, amino, mono- or di-alkylamino, NO 2 , acylamino, SH, alkylmercapto, alkylsulphinyl, alkylsulphonyl, aminoalkyl, sulphamoyl, sulphinylamido, alkylaminoalkyl, hydroxyalkyl, alkoxyalkyl, mercaptoalkyl, alkylthioalkyl, CN, CO 2 H, alkoxycarbonyl, CONH 2 , aryl, aralkyl or aryloxy and Y is S, SO or SO 2  are made by reacting a compound II (obtained, e.g. by demethylating the corresponding methoxy compound which is itself obtained, e.g. by interacting an appropriate benzenethiol sodium salt and a halophenol-ether in the presence of copper powder) with a carboxylating agent, e.g. CO 2 ; esters, amides and anhydrides are made according to standard methods and I in which Y is S can be oxidized to I in which Y is SO or SO 2  (the SO or SO 2  group can also be introduced at an intermediate stage of the synthesis, i.e. before the demethylation step). In general, compounds I may be converted one into the other if desired. p - Methylthio - benzotrifluoride, obtained by interacting p-methylthio-benzoic acid and sulphur tetra-fluoride, is demethylated in the presence of pyridine hydrochloride to afford p - mercaptobenzotrifluoride; 4- hydroxy - 4<SP>1</SP>- mercaptodiphenylsulphide, which is similarly obtained from p - (p - methylthiophenylthio)- anisole, is converted into p-(4-methylthiophenylthio)-phenol utilizing dimethylsulphate. Pharmaceutical preparations showing, in particular, anti-inflammatory action and also antipyretic, analgesic, diuretic, anti-fibrinolytic and hypoglycaemic action contain I as active ingredient; administration may be orally, rectally, parenterally or topically.
Patent GB-1266583-A (GB)
IPC: G03B43/02
Filed: 1969-06-19
Abstract: 1,266,583. Testing shutter speed photo-electrically. HOLDINGS OF BLACKBURN Ltd. May 5, 1970 [June 19, 1969], No.31016/69. Heading G1A. The shutter speeds of e.g. a photographic camera are tested photo-electrically. A phototransistor PT, forming part of the test circuit of Figs.2, 3, is mounted in a blackened tray which is clamped e.g. by rubber bands, on the back of the camera to be located centrally in the film frame. To avoid ambient light variations the camera back may be covered by a black cloth; the presence of such ambient variations may be sensed with switch SW1 in the SET A position. The circuit includes a switch SW2 which may couple the phototransistor output, when sensing light from a standard intensity lamp, via respective resistors, each corresponding to a particular shutter speed, to charge capacitor C1, the arrangement being such that the potential to which C1 is charged is the same for all SW2 positions (and thus shutter speeds). The potential on C1 is applied to high input impedance transistor TR2 of Darlington pair TR2, TR3, so that a drift free indication is obtained on meter MA. The latter is preferably calibrated with a centre zero and in percentage error values, the circuit being previously set-up such that for a camera with correct shutter speeds, zero indication is obtained. The setting procedure is by use of switch SW1. Firstly, with the shutter closed, and SET A position, R2 and R3 are adjusted to correct the mechanical zeroing of meter MA. Secondly switch SW1 is changed to the SET B position, the shutter is opened with maximum lens aperture and the standard lamp intensity varied until the meter deflection reaches a predetermined value. This is chosen such that correct shutter action or speed brings the meter pointer to the centre zero. Thirdly, the shutter is closed and SW1 changed to CHECK A, when if the meter does not return exactly to the mechanical zero, R3 may be adjusted to do this. The switch SW1 may now be changed to TEST to carry out the check on the shutter speeds. If the camera speeds do not correspond exactly with those of SW2, the nearest values are used and the meter reading corrected. After each reading, the switch SW1 is returned to CHECK A to discharge the capacitor. The apparatus is suitable for all types of shutters i.e. between-lens, diaphragm-type, focal plane etc. The detector may be fitted with a lens so as to be highly directional. The lamp is preferably wider than the maximum lens aperture.
Patent GB-1289206-A (GB)
IPC: H01G4/18
Filed: 1970-08-05
Abstract: 1289206 Capacitors SIEMENS AG 5 Aug 1970 [6 Aug 1969] 37704/70 Addition to 1220567 Heading H1M An X-Y capacitor network, defined in the Specification, is formed from a parent capacitor by making a cut 5 from one face stopping short of the other face to provide a conductive bridging piece between capacitor arrangements on each side of the cut, external connection being made to electrodes 1 and 11 of an X-region assembly at the end faces which are separated by the cut, and to electrodes IV and VI of a Y-region assembly at the same end faces, and to electrode VIII of the Y-region assembly at the opposite end face. The X- and Y-regions may each comprise multi-layer assemblies of dielectric foils 1, 2 and 3, 4 respectively, bearing the metallized electrode patterns shown interconnected at the metallized end faces. The metallized foils may have been wound on a large diameter drum and the end surfaces metallized prior to severing into individual parent capacitors and making the cuts which provide the network. Heat generated in cutting may form the insulating borders at the cuts. Contact wires may be welded to the end faces of the parent capacitors prior to cutting using two parallel wires which are then severed at the appropriate points. The connection to electrode or electrodes VIII is earthed, and the connections to electrodes I, IV and II, VI are taken to phase and neutral conductors respectively. Foils 2 and 4 may be narrower than foils 1 and 3 and the X and Y regions may be separated by insulating material.
Patent GB-1289459-A (GB)
IPC: F01D25/20
Filed: 1971-04-19
Abstract: 1289459 Lubricating WESTINGHOUSE ELECTRIC CORP 19 April 1971 [19 Feb 1970] 20369/71 Heading F2A [Also in Division F1] A lubrication system, e.g. for a turbo-generator unit 11 has a lubricant reservoir 30 and pumping means with its inlet disposed in the reservoir and its outlet connected to supply conduits 33 for the unit, there being a guard conduit surrounding at least part of at least some of the supply conduits, the guard conduit being in communication with the interior of the reservoir so as to permit any lubricant in the guard conduit to drain into the reservoir. The conduits and pumping means are attached to the surface of a plate 103 which is secured to the reservoir and covers an opening in the reservoir so as to facilitate assembly of the system. The lubricant reservoir may comprise a concrete channel splined with a material 91 impervious to the lubricant, e.g. an epoxy resin or a metal, which may be sprayed on to the concrete surface. The lubricating system has an oil pump 55 and an emergency back up pump 56, which feed oil to the supply conduits. The oil returns to the reservoir through conduits 64 which may also be contained in the guard conduit. The oil may be circulated from the reservoir through oil coolers 41.
Patent GB-1290454-A (GB)
IPC: B21C43/00
Filed: 1971-01-18
Abstract: 1290454 Coating apparatus M & B METAL PRODUCTS CO 18 Jan 1971 2286/71 Heading B2L [Also in Division B3] A wire 10 is given a lubricant retaining coating and heated by an electric current to bake the coating before it is pulled through a wire drawing machine. The wire 10 is first passed around descaling and straightening rolls 12-14 after which it is cleaned by endless abrasive belts 17. After cleaning, the wire is passed between pulleys 36, 37 during which a lime or borax solution is sprayed from a nozzle 54 onto the wire and the coating baked by passing an electric current through the wire. If movement of the wire 10 and pulley 39 ceases, a switch 63 is no longer driven by the pulley 39 causing electrical current to the wire 10 to be discontinued.