baber/WOPTO huggingface dataset:
Patent GB-1534695-A (GB)
Title: Retaining device for an apparatus having semipermeable membranes
IPC: B01D61/24
Filed: 1975-12-18
Abstract: 1534695 Membrane separation apparatus RHONE-POULENC INDUSTRIES 18 Dec 1975 [18 Dec 1974] 51863/75 Heading B1X A retaining device for fluid treatment apparatus having a stack of membranes and spacers, such device comprising two rigid end plates and at least one side member, cooperating anchoring means carried by at least one of said end plates and said at least one side member comprising at least one opening and at least one co-operating projection insertable in the opening, the at least one projection and opening haying abutting faces at least one of which is inclined to the plane of the end plate, the side member and end plates being relatively movable in a direction parallel to the end plates to effect movement of the end plates towards one another under the action of said co-operating inclined faces. The surfaces of the inclined faces are preferably roughened or corrugated-various forms of ratchet arrangement are disclosed-so as to allow movement towards one another of the end plates so as to clamp the stack, and prevent movement in the reverse direction.
Patent GB-1182990-A (GB)
Title: Monitoring System for Frequency Division Multiplexed Communication Channels.
Inventor: ANDERSON CLEO DALE
IPC: H04J1/16
Filed: 1968-11-01
Abstract: 1,182,990. Monitoring carrier transmission systems. WESTERN ELECTRIC CO. Inc. 1 Nov., 1968 [2 Nov., 1967], No. 51921/68. Heading H4R. In a frequency division multiplex communication system a group of channels, e.g. in the band 60 to 108 kHz, has the power level monitored by a narrow band pass filter which is arranged to be swept across the frequency band of the channel group, the rate of sweep being controlled inversely with the filter output. Completion of a sweep across a group of channels is arranged to reset a timing device and to switch the monitoring arrangement to another group of channels. If the sweep is not completed within a predetermined time, set by the timing device, an alarm is given indicating that a fault exists in that group of channels. Fig. 1 indicates a system in which the output of one of a number of groups of channels each of frequency range 60 to 108kHz is connected via a stepping switch 12 to a modulator 11 which, being fed with a carrier which is swept over the range 110 to 158 kHz, transposes the input signal to sweep across the pass band of the filter 14, i.e. 1 kHz at 50 kHz. The output of the filter is rectified and filtered to provide a signal to control the rate of sweep of the sweep generator 17, reducing the rate as the signal level increases. The output from the sweep generator is fed to control the frequency of the carrier oscillator 13, and also to a Schmitt trigger 18 which fires and actuates a reset relay 19 when the sweep generator reaches a voltage corresponding to the completion of a sweep. The reset relay causes resetting of the sweep generator 17 to the sweep start position, resetting of the timer to its initial condition, and operation of the stepping switch to connect a different group of channels to the modulator 11. If, due to overloading of the channel signals, the sweep is not completed before timer 20 has timed out the timer produces an output signal which actuates, via switch 22, the appropriate one of the alarm relays R1 to Rn which magnetically holds until manually reset. The timer also actuates the Schmitt trigger to operate the reset relay so that monitoring of the other groups of channels may continue. Fig. 3 shows the sweep generator circuit in which a capacitor V c  is connected in a "bootstrap" circuit to charge linearly via transistor 34 and resistor 35. The output of the rectifier filter circuit causes a variable shunt to be placed across the capacitor V c  to control the rate of charge in dependence on the energy level, and contacts 30 are operated by the reset relay to reset the circuit. The time out circuit may be caused to operate either by a single narrow frequency band sustained high level overload, which stops the sweep altogether, or a wide band lower level overload which reduces the sweep rate for such a duration as to allow the timer to operate.
Patent GB-1176240-A (GB)
Title: Process for the Production of 2,5-Diacylamino-1,4-Benzoquinones
IPC: C07C271/06
Filed: 1967-11-15
Abstract: 1,176,240. Benzoquinone derivatives. J. R. GEIGY A.G. 15 Nov., 1967 [16 Nov., 1966], No. 51996/67. Heading C2C. [Also in Division C4] 2,5 - Diacylamino - 1,4 - benzoquinones, optionally halogenated in the 3- and 5-positions, are made by a process comprising (a) reducing 2,5 - diamino - 1,4 - benzoquinone, optionally halogenated in the 3- and 5-positions, to produce the corresponding 2,5-diamino-1,4-dihydroxybenzene, (b) reacting the latter with at least two equivalents of an acylating agent (or at least one equivalent each of two acylating agents) and (c) oxidizing the resultant 2,5- diacylamino - 1,4 - dihydroxybenzene to yield the corresponding quinone. The preferred reducing agent for use in step (a) is sodium dithionite, but other suitable reducing agents are specified also. The acylating agent used in step (b) may be not only a halide or anhydride of an aliphatic, araliphatic, aromatic or heterocyclic carboxylic acid but also a chloroformic acid ester, a halogenated triazine or pyrimidine derivative, a ketene or an isocyanate. Many suitable acylating agents are specified. The preferred oxidizing agent for use in step (c) is nitric acid, but other suitable oxidizing agents are specified also.
Patent GB-521338-A (GB)
Abstract: 521,338. Photograph mounts &c. MORGAN, J. G. Y. D. Nov. 17, 1938, No. 33388. [Class 11] Photographs, transparencies, and other articles are held in position on an album leaf or display card by two or more bands 9, Fig. 1, of elastic material, loops of which are passed through holes 11 in the leaf or card at each side of the article 7, and are retained by a metal wire &c. 12, Fig. 2, located on the back of the leaf. The ends of the bands may be attached by sewing or glueing, or they may have loops, which are retained by the outermost wires. Removable. index slips may be placed under the wires. For displaying transparencies, the leaf may consist of two layers containing apertures of different size to form recesses, in which the transparencies are retained by the bands.
Patent GB-1360408-A (GB)
Title: Device for controlling the needles or knitting accessories  of circular knitting machines
IPC: D04B15/32
Filed: 1971-11-10
Abstract: 1360408 Knitting machines ETUDES ET BONNETERIE SA 10 Nov 1971 [26 Nov 1970] 52164/71 Heading D1C In a cam box of a circular knitting machine are provided two counter cams 5, 6 with a space for the passage of needle butts 8 in which a cam 10 with two cam faces 11, 12 is pivotable between three operative positions to provide three tracks corresponding to knitting, tucking and non-knitting. Cam 10 is carried on a disc 22 with notches 24, 25, 26 which are engaged by locking pin 27 to hold it in its three position, cam 22 being manually movable axially to release it from pin 27 and rotate it into a different position. In a modification, both the cylinder and dial cam systems comprise two paths engaged by needle butts at different levels. Pivotal cams 10', 10" are placed respectively in each of the paths to produce the three positions for the needles.
Patent GB-1316475-A (GB)
Title: Light-emitting semiconductor device
IPC: H01L21/208
Filed: 1970-11-04
Abstract: 1316475 Semi-conductor light sources GENERAL ELECTRIC CO 4 Nov 1970 [12 Nov 1969] 52537/70 Heading H1K [Also in Division C4] A semi-conductor structure contains two or more pn-junctions which may each be forward biased in any combination, the light emitted by the forward-biased junctions being of different colours. The various layers are of A<SP>III</SP>B<SP>V</SP> material containing gallium and phosphorus, and at least an outermost one comprises as host material gallium aluminium phosphide. In the structure shown layer P 1  is of gallium phosphide doped with zinc and oxygen (deep level), layer N 1  is of gallium phosphide doped with tellurium, layer N 3  is of gallium aluminium phosphide doped with aluminium, and layer P 2  is of gallium aluminium phosphide predominantly doped with aluminium. J 1  emits green light (which is not absorbed by N 2  and P 2  because of the larger band gap of the gallium aluminium phosphide) and J 2  emits red light. Layer P 1  is confined in extent so that the areas of J 1  and J 2  are equal to thus ensure a good perceived yellow when the junctions are energized together. In variants the junction areas need not be equal or there may be three superposed junctions (each with its own colour), any combination of which may be energized.
Patent GB-1287012-A (GB)
Title: Manual and automatic transmissions
IPC: F16H61/04
Filed: 1969-10-29
Abstract: 1287012 Change-speed control NISSAN MOTOR CO Ltd 29 Oct 1969 [30 Oct 1968] 52933/69 Heading F2D In a two-, three- or four-ratio manual or automatic transmission on a motor-vehicle, a transistorized electrical device which operates during shift to indicate lack of and completion of synchronism, and to open or close the enginethrottle to produce synchronism, and also, if desired, to reduce servo pressure, comprises engine- and vehicle-driven alternators 11, 10, the bridge-rectified outputs of which feed respectively negative and positive speedresponsive voltages to lines 50, 49 of potential dividers, comprising resistors 16, 17; 18, 20 and 21, 22, controlling the base potentials and hence the conductivity of transistors 12... 15 energizing relay coils 23 ... 26, controlling switching circuits 36, 37, 38, actuating synchronism indicators and throttle control (not described). Fig. 1 shows the application of a four transistor set to a three-speed transmission with automatic shift by a governor, which may be that described in Specification 1,281,039, closing contacts 33, 34 and 35 for shift to first, second and third speed respectively. Upshift requires throttle closure, and a 1-2 shift, signalled by the governor opening switch 33 and closing 34, is as follows. Initially the bases of both transistors 13, 14 will be negative, since engine speed is above synchronism for second speed. Relay coils 24 and 25 are both energized, switching arms 63, 68 to energize a line 70 which indicates high engine speed and closes the engine throttle. On reaching, or slightly before, synchronism, the transistor 14 ceases to conduct, de-energizing the relay coil 25, which switches from line 70 to 71, indicating completion of synchronism and restoring throttle control. The 2-3 upshift, signalled by governor closure of the switch 35 and opening 34, is similar, using the transistor 15, relay coil 26 and throttle control lines 76, 77. Downshift is similar except that now the engine requires to be accelerated for synchronism, achieved by closure of throttleopening contacts 56, 64, which are initially closed because the respective relay coils are not energized. Transistors 13 and 12 operate for 3-2 and 2-1 downshift relay coils when synchronism is attained. Fig. 2 (not shown) uses two transistors, acting as above, to control three ratios, but synchronizes only the downshifts by switches 33, 34. The switch 34 can be used to synchronize a 1-2 manual upshift provided that the driver has first released the usual main clutch and accelerator-pedal, and the engine has decelerated to below second speed synchronism, which would then follow by automatic engine acceleration by the switch 34.
Patent GB-1157450-A (GB)
Title: Repeat Spacing Device for a Manual Typewriter
IPC: B41J19/42
Filed: 1966-11-29
Abstract: 1,157,450. Typewriters. OLIVETTI UNDERWOOD CORP. 29 Nov., 1966 [13 Dec., 1965], No. 53293/66. Heading B6F. A repeat letter-spacing device for a manual typewriter comprises a ratchet and pawl escapement mechanism and a control key (33), 33<SP>1</SP> which when operated raises a lever 31 so that, in the case of a rocker escapement mechanism, Fig. 3, a rocker 22 is permitted to pivot so that a movable pawl 21 is displaced from the ratchet wheel 16, the rotation of which causes the operation of a restoring pawl 41 which restores the rocker whereby pawl 21 again holds the ratchet wheel. If the repeat key is still held a spring 37 again pivots the rocker displacing pawl 21 and another letter space is effected. In the case of an anchor type pawl 47, Fig. 4, the restoring pawl 41<SP>1</SP> pivots a bell crank 32<SP>1</SP> which allows a pawl 47 to re-engage the ratchet wheel 161. If the repeat space key 33<SP>1</SP> is still depressed crank 32<SP>1</SP> presses pawl 47 to release position and the rotation of rachet 16<SP>1</SP> actuates the restoring pawl 41 again.
Patent GB-1313560-A (GB)
Title: Assembly comprising a conducting circuit sandwiched between two insulating plates
IPC: H05K1/16
Filed: 1970-11-10
Abstract: 1313560 Circuit assemblies, semi-conductor device assemblies CENTRE NATIONAL D'ETUDES SPATIALES 10 Nov 1970 [15 Jan 1970] 53458/70 Headings H1K and H1R An assembly comprises a conducting circuit sandwiched between two plates of insulating material 12, 13 which includes at least one diode (as 4) or semi-conductor device, one electrode of which is to be connected to a first point by a capacitive element and to a second point directly, one of said two plates carrying the circuit and receiving the diode and each of them carrying a metallized or metal plane connected to the first point, each of the planes forming a foil of one of two capacitors forming the capacitive element whose dielectric is composed of an insulating sheet 37 adhering to the plane and whose other foil, adhering to the insulating sheet, is connected to the second point. The other foil comprises a berylliumbronze plate 8 and aluminium plate 2. The components are held together by a spring 10 and screws 1 to a case 11. The adjacent faces of sheets 7 and 13, 3 and 12 are metallized constituting the first foil of the capacitors.
Patent GB-1211743-A (GB)
Title: Disc brake
IPC: F16D65/56
Filed: 1967-11-27
Abstract: 1,211,743. Spot type disc brakes. ALFRED TEVES G.m.b.H. 27 Nov., 1967 [16 Dec., 1966 (3)], No. 53878/67. Headings F2E and F2F. A moving caliper spot type disc brake has both pads operated by each of a pair of coaxial cylinder chambers fed by respective independent pressure lines and such that the end walls of each chamber are moved apart by either or both fluid systems. In Fig. 5 independent pressure lines I and II feed chambers 32 and 33 to separate a stepped piston 27 from a hollow piston 28. The left hand end of 27 operates the direct pad 23 and the right hand end an indirect pad via frame 30, the cylinder assembly being fixed. Feed II may be at right angles to the cylinder (Fig. 4, not shown). In Fig. 6 two hollow pistons 27, 28 are separated by fluid pressure in chambers 32 and 33 from lines I and II. In Figs. 1 and 2 (not shown) cylinders similar to Figs. 4 and 5 form part of a floating caliper. It is stated that the caliper could be of swinging type and that the pads could be operated via linkwork.
Patent GB-1490709-A (GB)
Title: Monitoring system for a telecommunications exchange
IPC: H04L25/02
Filed: 1974-12-18
Abstract: 1490709 Automatic exchange systems COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 18 Dec 1974 [20 Dec 1973] 54594/74 Heading H4K A scanning system for monitoring e.g. junctors and similar exchange peripherals comprises a memory containing data in respect of each junctor, an address counter for simultaneously addressing each junctor and its memory location in turn and a logic assembly of AND, OR and INVERTOR functions which manipulates current and past junctor data and provides outputs for updating the memory and controlling the junctors without the assistance of a common control. The AND/OR logic is formed by diode matrices (Fig. 4, not shown) assembled on printed circuit cards. The memory M is a 1024 word (each of 48 bits) circulating C/MOS integrated circuit in which each of 400 junctors has 2 words reserved thereto. The counter CR rotates in synchronism with the memory by grace of clock H and addresses the junctors (which are formed on printed cards) by a 3 digit code C, A, B, the code L representing the 1st and 2nd memory words for each junctor. Cycle time for the memory is 20 m.secs. The data stored is Word 1; Temthe period during which the junctor state has not varied (if this period exceeds a value recorded in the logic, an alarm is given); Log-free or engaged and receiving dial pulses; Num-dial pulses already received; De-called subscriber's number: Word 2; Nop-operator assistance required; Cat-caller's class of service; Dr-caller's number. The operation of the memory may be checked with a visual display CV. The logic ME accepts data from the junctor under observation J (and possibly other relevant circuits, e.g. G-switching network, Op-operator circuit, Aux-special circuits such as PBX or call transfer), the memory M and circuits ADT (a time delay adder), and ADN (dialling analyser). The AND/OR/INVERT logic ME manipulates the arriving data and as a result issues orders to the junctors &c. as well as updating the memory via AE. If there is no change required, the data in memory M is recirculated by AC and AE. A second logic matrix MD responds to requests for service from the G, Op and Aux circuits in conjunction with data from a comparator CP. The size of the logic ME may be reduced by combining data from the memory M in the pre-processing circuits ADT, ADN. Call charge data may be recorded by expanding the memory and logic.
Patent GB-1422346-A (GB)
IPC: H02H3/38
Filed: 1972-11-28
Abstract: 1422346 Line earth leakage protection GENERAL ELECTRIC CO Ltd 28 Nov 1973 [28 Nov 1972] 54834/72 Heading H2K An earth leakage protective device for protection within a predetermined distance of the device along a transmission line monitors the difference between a parameter such as the phase Voltage (or the voltage V OP  (R) which is related to the phase voltage plus the product of the line zone positive sequence impedance DL1 and the sum of line current and a constant K times the residual current) and a voltage Kx related to the zero-sequence voltage at the fault. As shown, voltages such as V OP  (R) are produced by transformers CT1 and VT1 with impedance ZLI, and with the value K equal to ZL0-ZL1 divided by 3 ZL1 (ZL0 being the zero-sequence impedance between the monitoring point and the end of the predetermined distance). V x  is the sum of V OP  (R), V OP  (Y) and V OP  (B).
Patent GB-1173323-A (GB)
Title: Plasticized Halogen-Containing Resins
IPC: C08L27/06
Filed: 1966-12-08
Abstract: 1,173,323. Saturated polyesters. MONSANTO CO. 8 Dec., 1966 [8 Dec., 1965], No. 55049/66. Heading C2C. [Also in Division C3] Saturated polyesters of the formula ROOC-X-COO(G-OOC-X-COO) n - R<SP>1</SP> where n represents 2, 3, 4, 5 or 6, X represents a saturated aliphatic radical (2-8C), G an aliphatic or oxyaliphatic group (2-6C), and R and R<SP>1</SP> are the same or different and are alkyl groups (4-20C), phenyl alkyl (7-10C) or phenoxy alkyl groups (7-10C) are prepared by reacting the saturated dicarboxylic acid, a glycol and the terminating alcohol in the presence of a catalyst such as titanium tetrachloride. The product is distilled at elevated temperature in a molecular still. Examples describe the reaction of 1,3-butanediol, adipic acid, and 2-ethylhexanol, isohexanol and isodecanol. The products are used as plasticizers for halogen-containing vinyl polymers and copolymers.
Patent GB-1145309-A (GB)
Title: Improvements in or relating to yarn wind-up means
Inventor: SWALLOW IAN HENRY
IPC: B65H54/34
Filed: 1966-12-08
Abstract: 1,145,309. Winding up yarns. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 Nov., 1967 [8 Dec., 1966], No. 55061/66. Heading D1J. A package driving roller 13 has one endportion 11 of reduced diameter, this end-portion 11 being connected with the main portion of full diameter by an intermediate frustoconical portion. The frusto-conical portion is formed with a screw thread 17. The package is wound on a tubular yarn holder 1 biased against the roller 13, the holder 1 having a notch 10 at one end. The yarn is traversed onto the roller 13 by reciprocable means (21, 23) Fig. 2 (not shown). In operation, the yarn end is inserted in notch 10 and the apparatus set in motion. A swivelling pin (25) Fig. 3 (not shown) delays movement of the yarn along the end-portion 11 whilst a yarn bunch is wound on the holder 1. Thereafter the yarn is caught up and traversed by the thread 17 to form a transfer tail an the holder 1. Thereafter the yarn is traversed by the aforesaid means (21, 23). The reduced end-portion 11 is stated to reduce the chance of the yarn adhering to the roller 13 and not the holder 1 at the start of a winding operation. The end portion 11 may have a mast-chromed finish and the full diameter portion 13 a bright chromed surface.
Patent GB-1244726-A (GB)
Title: Improvements in hub dynamos
Inventor: HILLYER ANTHONY WILLIAM
IPC: B62J6/12
Filed: 1967-12-06
Abstract: 1,244,726. Hub dynamos. RALEIGH INDUSTRIES Ltd. 13 Nov. 1968 [6 Dec., 1967], No. 55506/67. Heading H2A. In a hub dynamo comprising gearing between an armature part and a field poles part to give an increased speed of the part on the driven side of the gearing, and a device to permit over-run of the part on the driven side upon deceleration of the part on the driving side, the driven side part is carried by a bushing 17 having internal slots engaging splines 19 on a sleeve 20 slidable against the action of a spring 21 and under the action of a push-rod 23 into the bushing 17, whereby teeth 20a on the sleeve 20 either disengage or engage the gearing to respectively not provide, or provide, the speed increase. Whilst either part may be mounted in the hub shell 10, preferably it is the armature part in the form of coils 12, and the field poles part 18 in the form of permanent magnets is mounted on the bushing 17; coil terminals 13 lead to printed circuit output tracks 13A. A lever 22 rotates the push-rod 23 causing, by its threaded engagement with the hub spindle 15, axial movement of a key 26 abutting an end of the sleeve 20. The gearing, Fig. 3 (not shown), reverses the direction of rotation and, mounted in two plates 30, 31, terminates in a gear 29 meshing with the teeth 20a and a gear (32) meshing with an internal annulus 40 fixed to the shell 10. The over-run device, Fig. 4, is embodied in the sleeve 20 and comprises ratchet teeth 20D engageable in slots 20E. The armature coils 12 are wound on a reel 100, Fig. 5, having an axially slit annular cover 101 retained by displaced laminations 102 engaging grooves 103 and notches 104 to prevent relative rotation.
Patent GB-1397488-A (GB)
Title: Gyratory crushers
IPC: B02C2/06
Filed: 1973-12-03
Abstract: 1397488 Gyratory crushers VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT STROITELNOGO I DOROZHNOGO MASHINOSTROENIA 3 Dec 1973 55945/73 Heading B2A A gyratory crusher has a head 3 secured to a hollow shaft 4 which is mounted in a crusher framework 1 below the head by a spherical bearing 10. The hollow shaft 4 is connected to an eccentric 6 constituted by upper part of an eccentric shaft 5 passing through the hollow shaft 4. A drive means 9 is connected to the eccentric shaft below the crushing head. When the eccentric shaft 5 rotates the head 3 gyrates above a point 18 below the head 3. The crushing gap between the head 3 and bowl 2 is determined by adjustment of a worm 15 and worm wheel 14 connected to a nut 13 which displaces a screw 11. The screw 11 is hollow is connected with the hollow shaft 4 and is slidably mounted about a tubular guide 12 which is part of the crusher frame and surrounds the lower part of the shaft 5. Rotation of the worm thus moves the hollow shaft and with it the head 3. The eccentric shaft 5 includes a portion 17 serving as a counterweight.