baber/WOPTO huggingface dataset:
Patent GB-896770-A (GB)
Title: Hybrid junction coupling arrangement
IPC: H01P5/20
Filed: 1960-12-14
Abstract: 896,770. Microwave hybrid junctions. WESTERN ELECTRIC CO. Inc. Dec. 14, 1960 [Dec. 28, 1959], No. 43014/60. Class 40(8). A microwave hybrid junction uses strip transmission lines of the "sandwich" type comprising two parallel ground planes 11 spaced on either side of a configuration of strip conductors. These may be printed or otherwise deposited on the inner faces of slabs of dielectric material arranged between the ground planes. A first branch 13 of the circuit is of U configuration, the limbs of the U being joined at their extremities to second and third branches 15, 16. Each of these comprises two parallel strips short-circuited at their ends to the ground planes by elements 20. The three branches 13, 15, 16 are each of one quarter-wavelength long so that the open and short-circuit impedances between various elements at the extremities of the branches are inverted at the common junction. Two further branches 18, 19 are connected to this junction. Between the parallel elements of branches 15, 16 extends a coupling conductor 21 having a central conductive bridging portion 31 which spans the extremity of the branch 13 and is insulated from it by a piece of dielectric material 32. Energy delivered to the end 22 of the branch 13 is divided equally between the branches 18, 19 in phase (i.e. the branches are in parallel). Energy delivered to either extremity of the coupling conductor 21 is divided equally between the branches 18, 19 in antiphase (i.e. the branches are in series). In a modification, the strip conductors are duplicated and form two identical, parallel layers which are electrically connected at intervals. In this case the elements of the limbs 15, 16 and the coupling conductor 21 are arranged between the ground planes 11 in the manner shown in Fig. 3.
Patent GB-1128973-A (GB)
Title: Facsimile printer with ferroelectric modulator
IPC: G03G15/32
Filed: 1965-10-11
Abstract: 1,128,973. Exposing photo-conductive layers. RANK XEROX Ltd. Oct. 11, 1965 [Oct. 20,19641, No. 43037/65. Heading G2H. [Also in Division H4] Apparatus for recording an electrical signal e. g. a video signal, on a xerographic drum comprises a monochromatic light source which is intensity modulated by means of an electro-optic crystal positioned between crossed polarizers across which an electric field is applied in accordance with the signal to be recorded, and a rotating polygonal mirror which reflects the light into successive linear traces upon the photo-sensitive surface of the xerographic drum which rotates at right angles to the direction of the traces. The electric field which is applied by means of opposed electrodes is preferably transverse to the path of the light beam within the electro-optic crystal. To superimpose a half tone modulation on the light beam a high frequency modulating source is applied to a second set of opposed electrodes disposed 90 degrees from the above electrodes, the frequency of which is variable to permit selection of the half tone grain. The polygonal scanning mirror is synchronized in rotation to a synchronization signal representative of the scan rate used to obtain the video signal, as is the rotation rate of the xerographic drum in order to maintain image linearity. The electrooptic crystal is preferably cuprous chloride.
Patent GB-1175720-A (GB)
Title: Leak Visual Warning and Detection Device
IPC: G01M3/12
Filed: 1967-09-21
Abstract: 1,175,720. Detecting gas leaks. GENERAL MOTORS CORP. 21 Sept., 1967 [22 Dec., 1966], No. 43060/67. Heading A5G. [Also in Divisions B1 and G1] A leak detection and visual warning device for signalling by means of a smoke tell-tale 11 the occurrence of chlorine leaking from a conduit 1 or a container, comprises a ribbon of an absorbent material soaked with ammonia solution and an elongated hollow envelope enclosing the ribbon. The envelope consists of a plastics film selected from the group consisting of polyamide resins formed by the condensation of dibasic organic acids with diamines, polyvinyl chloride, polyethylene polyester and cellulose acetate. The device, in the form of a tape 2, is wound around the conduit so that any escaping chlorine penetrates the envelope and combines with the ammonia to form a visible wisp of ammonium chloride gas. In a second embodiment, a second conduit 6 surrounds the tape wound conduit and the ammonium chloride gas formed as a result of a leak is viewed through a sight glass 8 in a conduit 7. An electrochemical detector 9 may also be used. The absorbent material is preferably cotton but asbestos or fibre glass may be used.
Patent GB-1089407-A (GB)
Title: Improvements in thyristors
Inventor: SADLER ALBERT JOHN
IPC: H01L29/08
Filed: 1965-10-13
Abstract: 1,089,407. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 6, 1966 [Oct. 13, 1965], No. 43430/65. Heading H1K. The lateral edges of a silicon thyristor are bevelled so that the parallel planes of the forward blocking junction B and reverse blocking junction C subtend equal acute angles in the range 10-50 degrees with the bevelled edges. The acute angle at the forward blocking junction B lies in the more lightly doped of the two regions 2, 3 comprising the junction, in order to minimize the deleterious surface field at this junction. A further highly-doped N<SP>+</SP>-type region (16), Fig. 2 (not shown), may be included between the P<SP>+</SP> and N regions forming the reverse blocking junction (C), in order to permit a higher forward blocking voltage and to limit the voltage across the junction (C).
Patent GB-1058945-A (GB)
Title: Improvements in or relating to steering wheels
Inventor: NOCK HOWARD
IPC: B62D1/06
Filed: 1964-10-23
Abstract: 1,058,945. Steering wheels. WILMOT BREEDEN (PLASTICS) Ltd. Oct. 21, 1965 [Oct. 23, 1964], No. 43438/64. Heading B7J. A dished steering wheel for motor vehicles comprises two rim segments 7 each attached to steel spokes 4 screwed to and radiating from an aluminium boss 1, Figs. 1, 2 (not shown), secured on a steering column core 8 by a nut 9, the rim segments 7 each comprising a cylindrical steel reinforcing rod 12 flattened and stepped at its ends 13, one of which is riveted at 6 to each spoke 4, and being provided with a foamed cellular layer 16 of polyurethane having an outer seamless skin 15 of polyvinyl chloride. Each skin 15 is rotationally cast in a seamless mould, cured and placed in a two-part retainer mould together with a rod 12 in which the polyurethane is foamed in situ and cured.
Patent GB-434641-A (GB)
Abstract: 434,641. Crochet needles. DOSSMANN, P., 12, B³rgergarten, Iserlohn, Westphalia, Germany. Jan. 29, 1935, No. 2858. [Class 112] A crochet needle has a tapered end bent back as shown at b to shield the hook and prevent it from catching in the threads as it is pulled through. The inner face of the hook is parallel to the tapered surface b and forms an angle of 30‹ to the axis of the stem.
Patent GB-1388324-A (GB)
Title: Dialysis of suspensions of animal tissue
IPC: A61K35/50
Filed: 1972-09-22
Abstract: 1388324 Dialysis of animal tissue R DEININGER and P BUCHMANN 22 Sept 1972 [24 Sept 1971] 43928/72 Heading ASB [Also in Division B1] A process for dialysing a suspension of ground embryonic animal tissue and/or placenta tissue, or other liquid which promotes bacterial growth and requires dialysis under sterile treatment so as to obtain a therapeutically active material from the suspension, wherein the entire liquid to be dialysed, except for a boundary layer which immediately adjoins the dialysis membrane, is cooled to a temperature below +4C, this boundary layer being maintained at a temperature of at least +4C. Preferably the entire dialysate, except for a boundary layer immediately adjoining the dialysis membrane, is cooled to a temperature below +4C. The liquid to be dialysed, and optionally also the dialysate, is constantly circulated or stirred during the dialysis so that the constituents only briefly remain in the boundary layer which is maintained at a temperature of at least +4C. The boundary layer of the liquid to be dialysed is prevented from cooling below +4C by convection heat transfer from the dialysate.
Patent GB-1156544-A (GB)
Title: Improvements in or relating to a Message Transmission Apparatus
Inventor: BEST DAVID
IPC: G08B25/01
Filed: 1966-10-01
Abstract: 1,156,544. Road signals for controlling traffic. SHORROCK DEVELOPMENTS Ltd. 29 Aug., 1967 [1 Oct., 19661, No. 43956/66. Heading G4Q. [Also in Division H4] A monitoring device at a substation can answer an incoming call, can establish a connection over an automatic telephone exchange in the event of an alarm condition and can select a pick-up associated with an appropriate magnetically recorded message to be transmitted. As described the device monitors visibility on a motorway but could alternatively or additionally be used to monitor the condition of ice or fog warning lamps. The visibility is detected by an infra-red transmitter and receiver spaced apart adjacent the motorway. The detector indicates the visibility level by enabling one out of six lines enabling a corresponding pick-up in the tape unit of a telephone answering device. The detector also gives an output on one of two output lines depending on whether the visibility is above or below a danger limit. A change in this output if it persists for more than two minutes is used to trigger a telephone alarm device and to select an appropriate magnetic tape within that device. The tape carries dialling pulses and a spoken message for a remote official. The telephone alarm device is arranged to re-establish a path through the exchange and transmit the message either a predetermined number of times or until called back by the official. If the official wishes to know the visibility level or if he has received an alarm call and wishes to terminate its transmission he dials the number of the substation. A ringing tone detector at the substation responds silencing the alarm device and enabling the answering device. The answering device transmits a verbal representation of the visibility level then shuts down. The visibility detector also controls a fog warning light and a speed limit indicator. The ringing tone detector may be supplemented by a voice-frequency tone detector which inhibits the operation of the response to a call to the substation until a predetermined tone signal is received from the official.
Patent GB-1242119-A (GB)
Title: Improvements in and relating to rotary impeller pumps
IPC: F04D15/00
Filed: 1968-09-16
Abstract: 1,242,119. Axial-flow pumps. BABCOCK & WILCOX CO. Sept.16, 1968 [Sept.15, 1967], No.43990/68. Heading F1C. A pump, e.g. for circulating coolant in a nuclear reactor, comprises an annular one-way valve formed by a row of stationary pivotal vanes 19 positioned upstream of an impeller 18. The vanes are shown in their closed position, but they will be opened by the forward flow when the pump is operated. If the flow through the pump should reverse due, e.g., to failure of the pump when connected in parallel with similar pumps, the vanes will close. The vanes abut one another in their closed position and abut stops 40 in their open positions in which they guide the forward flow axially of the pump. The radially outer ends of the vanes are curved to correspond to the curvature of the inner surface of surrounding wall 20A. The radially inner end of each vane is straight and extends substantially perpendicular to the pivotal axis of the vane. There may be eight vanes and the outer surface of a central tubular member 15 may be octagonal so that each flat surface thereof cooperates with the adjacent straight end of a respective vane. The vanes may be hollow or solid.
Patent GB-1200804-A (GB)
Title: Imaging matrix structure
IPC: G03G5/02
Filed: 1967-09-28
Abstract: 1,200,804. Semi-conductor imaging device. RANK XEROX Ltd. 28 Sept., 1967 [29 Sept., 1966], No. 44123/67. Heading H1K. An insulating support has a plurality of mutually insulated conductive elements embedded in the support, a first set of ends of the conductive elements being coplanar with one surface of the support and the other set of ends protruding from the support and a layer of field-effect semi-conductor material overlying the planar surface having the first set of ends. An electrode 51 supports a uniformly electrostatically charged paper sheet 19 in contact with the protruding pins of a pin matrix 5. A semi-conductor layer 9 of CdS, CdSe, As 2 S 3  or ZnO lies adjacent the pin layer and is built up by sputtering or evaporation. An insulating layer 13 of SiO or MgF 2  is evaporated on to the semi-conductor layer 9. If a charge pattern, either of one polarity or two polarities, is formed on the surface of layer 13 then the charge and the surface will act like a "gate" in a F.E.T. and will transfer charge from one place to another on the sheet 19 via the pins and the semi-conductor layer 9, thus producing a redistribution of the electrostatic charge on sheet 19 which corresponds to the charge pattern on 13. In a modification (Fig. 5, not shown) the semi-conductor and the insulating layer are replaced by a photo-conductive insulating layer e.g. ZnO, PbO or CdO. A composition of ZnO, copoly styrene-butadiene, chlorinated paraffin and a mixture of dyestuffs is deposited on the pin matrix or zinc is sputtered or evaporated on and subsequently oxidized. The charge pattern may be formed on the surface of layer 13 by: (a) using an electron gun to sweep the surface, (b) corona discharge with the pin matrix grounded and a shaped conductive screen interposed between the discharge and the surface or (c) dielectric breakdown between the surface and a shaped conductor with the pin matrix grounded.
Patent GB-1532308-A (GB)
Title: Fluid pressure operable vehicle brake system with variable load control
IPC: B60T8/18
Filed: 1976-10-25
Abstract: 1532308 Load responsive braking systems WABCO WESTINGHOUSE GmbH 25 Oct 1976 [3 Nov 1975] 44180/76 Heading F2F The pressure transmitted from a driver's valve 3 to the brake actuators 11 of the forward axle of a twin axle assembly is controlled by a load responsive valve 7. The pressure to the actuators 27 of the other axle is controlled by a proportioning valve 15 responsive to the load controlled pressure via line 18. The proportioning valve (Fig. 2, not shown) has three piston areas responsive to (a) inlet pressure at 16, (b) the load controlled pressure at 17, and (c) a pressure at 20 from a separate fluid pressure source 24 when an electrical valve 22 is opened in response to the pressure in line 14 being being higher than a predetermined value.
Patent GB-1114097-A (GB)
Title: Water-soluble cationic metal complexes of formazane dyestuffs and process for their manufacture
IPC: C09B44/02
Filed: 1966-10-04
Abstract: The invention comprises cationic metal complexes of formazane dyes of the formula <FORM:1114097/C4-C5/1> in which k1 and k2 are complex forming groups and are ortho to the azo linkages, R1 and R2 are arylene residues, R3 is a monovalent organic residue x1, x2 and x3 are alkyl, hydroxyalkyl, cyanoalkyl or haloalkyl containing 1-4 carbon atoms in the alkyl residue, or aralkyl or cycloalkyl, or 2 or 3 of these symbols together with the N atom form a monocyclic heterocyclic residue, A- is an anion, z is a bridge member, n is 1-3, m is 1 or 2, the sum of n and the charge number of the metal is at least 4 and the dyes contain no further dissociatable acid groups. The compounds may be prepared by reacting an agent yielding a metal with a formazane dye of the above formula either as such or simultaneously with its formation.ALSO:(41 - Hydroxy - 31 - aminophenyl) - trimethyl-ammonium chloride is prepared by the N-acetylation of 4-nitro-2-aminophenol, reduction of the nitro group, quaternization of the resulting amino group with dimethyl sulphate and hydrolysis of the acetylamino group with HCl. Triethylammonioacetic acid (41-hydroxy-31-aminobenzylamide) chloride is prepared by the quaternization of triethylamine with 4-hydroxy-3-nitro - N - chloroacetyl - benzylamine and reduction of the nitro group.  Methylmorpholinium-N-acetic acid (41-hydroxy - 31 - aminophenyl - amide) chloride is prepared by the quaternization of N-methyl-morpholine with 4-chloroacetylamino-2-nitro-phenol and reduction of the nitro group.  Trimethylammonioacetic acid (41-amino-31-carboxyphenylamide) chloride is prepared by the quaternization of trimethylamine with 5-chloroacetylamino-2-nitrobenzoic acid and reduction of the nitro group.ALSO:Materials may be dyed with metal complexes of formazone dyes of the formula <FORM:1114097/D1-D2/1> in which k1 and k2 are complex forming groups and are ortho to the azo linkages, R1 and R2 are arylene residues, R3 is a monovalent organic residue, x1, x2, and x3 are alkyl hydroxyalkyl, cyanoalkyl or haloalkyl containing 1-4 carbon atoms in the alkyl residue, or aralkyl or cycloalkyl, or 2 or 3 of these symbols together with the N atom form a monocyclic heterocyclic residue.  A- is an anion, 2 is a bridge member, n is 1-3, m is 1 or 2, the sum of n and the charge number of the metal is at least 4 and the dyes contain no further dissociatable acid groups. Examples describe the dyeing of polyacrylonitrile staple fibres from an aqueous acetic acid solution of dye, the dyeing of bleached human hair using an ammoniacal, an acetic acid or an alcoholic aqueous solution of due and the printing of polyacrylonitrile fabric from a bath containing dye, thiodiethylene glycol, acetic acid, water and a thickening agent.
Patent GB-1410858-A (GB)
Title: Switchint circuit
IPC: H03K17/62
Filed: 1973-09-21
Abstract: 1410858 Semi-conductor gating circuits; colour television SONY CORP 21 Sept 1973 [22 Sept 1972] 44451/73 Headings H3T and H4F A chroma signal C is amplified by a two stage amplifier Q10, Q13 which are gated off when a colour killer signal K turns off Q12. Stray coupling between input and output is thus reduced by having two transistors Q10, Q 13, whose stray capacities Cbc10, Cbc13 are in series. Current consumption when the amplifier is off is also reduced by having all the transistors turn off. Q12 is turned on and off by turning a further transistor Q11 off and on with the signal K. In a modification (Fig. 6, not shown) a cascade transistor (Q14) is included between Q10 and Q12 and is driven from Q12 base. An emitter follower (Q15) drives Q13. In a further embodiment (Fig. 7, not shown) a cascade transistor (Q16) again is connected between Q10, Q12 but is now biased from a potentiometer (VR1) which permits gain to be controlled thus providing a colour saturation control; and the cascade (Q16) is moreover connected differentially by emittercoupling with another transistor (Q17) which effectively shorts out any stray. colour signal until the colour killer signal gates the amplifier ON.
Patent GB-1042886-A (GB)
Title: Improvements relating to textile carding machines
Inventor: MACKIE JOHN PRINGLE
IPC: D01G15/90
Filed: 1962-11-26
Abstract: A stave to be employed in clothing the cylinders and rollers of carding machines and particularly for breaker cards is faced with a sheet of aluminium or aluminium alloy and the pins are located in holes drilled continuously through the facing and into the wooden body.  The facing may be approximately 3/32 inch thick and it is stated that the drilling speed for the composite lag may be the same as for a wood lag.
Patent GB-1216900-A (GB)
Title: Label punching machine
IPC: B26F1/38
Filed: 1968-09-19
Abstract: 1,216,900. Punching machines. BRILLANT PLASTICS N.V. 19 Sept., 1968 [16 Oct., 1967], No. 44664/68. Heading B4B. A machine for punching labels from a tape material driven at a constant velocity comprises an interchangeable punching unit 22, 23, driven by means of an eccentrically mounted shaft 17 which thereby produces a horizontal velocity component on the punches 22 of the unit during the actual punching portion of the stroke, and means for adjusting the magnitude of the horizontal component including a disc secured to the shaft and provided with a slot 27 in which a block 28 is slidable, the block being mounted on a motor-driven crank 30 movable in a horizontal direction perpendicular to the axis of the shaft. The punches 22 are carried by bar 20 secured to a pair of collars 19 freely rotatable on an eccentrically mounted shaft 18 and co-operating dies 23 are formed in a bar 21 secured to a pair of collars 19 freely rotatable on the eccentrically mounted shaft 17; the two shafts are connected by gears 37, 38. The crank 30 is journalled in a bearing 34 which can be moved along a track 36.
Patent GB-448967-A (GB)
Abstract: 448,967. Loft - ladders. SIEBER, H., 9, Brunnhalde, Lucerne, Switzerland. July 18, 1935, No. 20501. Convention date, July 6. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 20, 1936.] [Class 20 (ii)] A sliding loftladder 1 is counterbalanced by a weight 4 which travels upon a curved guide 5 so constructed that the vertical components of the weight always counterbalance the weight of that portion of the ladder which overhangs the loft opening. The weight is connected to the ladder by a cable 3 which passes over a pulley 7 mounted on an upright 8, and around a guiding roller 9. The ladder has a sliding connection with the hinged loft door 6 and slides upon a member 10 of hard wood which is attached to the loft floor 2. The inclination of the guide curve may be varied so that similar guides may be employed with ladders of different weights. The Specification as open to inspection under Sect. 91 comprises also various other devices for counterbalancing sliding loftladders. In one arrangement a cable from the ladder is passed over pulleys and connected to two weights adapted to come to rest upon the loft floor at different times as the ladder is raised. In another construction, a single heavy weight is used, the connecting cable being passed around a system of pulleys so that the weight moves only through a short distance. Another construction has a straight inclined guide for the weight, and in other constructions the cable is connected to a drum and is adapted to tension a spiral or a coiled spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-1007159-A (GB)
Title: A high-voltage direct-current transmission system
IPC: H02M5/42
Filed: 1961-12-15
Abstract: 1,007,159. Converting. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Dec. 15, 1961 [Dec. 19, 1960; April 20, 1961], No. 45024/61. Heading H2F. In a high voltage direct current power transmission system each of two transmission cables 5, 6 is connected to a current converter 2 through an isolating switch 3, 4. The isolating switches are of the change-over type to permit reverse power flow. In operation, the converter is controlled to zero current flow before the switches are operated.
Patent GB-1188836-A (GB)
Title: Improvements relating to Bridging Structures.
Inventor: LONG ALWYN EDWARD
IPC: E01D2/02
Filed: 1967-10-04
Abstract: 1,188,836. Metal bridge cock structures. MABEY & JOHNSON Ltd. 16 Oct., 1968 [4 Oct., 1967], No. 45210/67. Headings E1G and E1K. Bridge decking planks 1 are supported on transoms 3 through stringers 2 located by pairs of parallel stops 6-7, each stop 7 overhanging the stringer flange to limit rocking and having a pair of edge slots 7b receiving webs 2b whereby the adjacent ends of two aligned stringers are held apart. The parallel deck planks 1 are closely spaced by angle or T members, Fig. 6 (not shown), on the outermost stringers (2'). The planks are clamped to the outermost stringers, Fig. 5 (not shown) by superposed kerb members (4) housing inclined hook plates (5a).