baber/WOPTO huggingface dataset:
Patent GB-1417857-A (GB)
Title: Ignition systems for internal combustion engines
IPC: F02P7/073
Filed: 1972-07-11
Abstract: 1417857 Ignition systems LUMENITION Ltd 21 June 1973 [11 July 1972] 32292/72 Addition to 1219833 Heading F1B The ignition system disclosed in the parent Specification is modified so that ignition occurs when the beam of radiation emitted by the radiation source 1 is permitted to fall on to the radiation-sensitive element 2 instead of when the beam is interrupted by the obturator 3. For this purpose, the output from the photo-transistor 2 is taken from the collector instead of the emitter. Diodes D1-D4, Zener diode Z2, inductor L and feedback resistor R6 are provided for the purposes explained in Specification 1330453.
Patent GB-1385330-A (GB)
Title: Connector for electrical terminals
IPC: H01R13/24
Filed: 1972-07-11
Abstract: 1385330 Two part couplings ESSEX INTERNATIONAL Inc 11 July 1972 [28 July 1971] 32357/72 Heading H2E A connector comprises contact carriers 2, 3 each holding stud contacts (30, 34, Figs. 3 and 4, not shown), an elastomeric contact disc 4, an outer coupling ring 1 and means for axially moving the carrier 2 after the ring 1 has engaged the carrier 3. Before the carrier 3 is engaged, the carrier 2 is held within the ring 1, against a spring 5, by engagement of flanges 19 below flanges 12. In mating, firstly the carrier 3 is inserted into the ring 1, flanges 25 passing between flanges 12. Ribs 44 and slots 45 prevent relative rotation of the carriers 2, 3. Then the ring 1 is rotated so that the flanges 25 pass beneath the flanges 12 to prevent separation. Upon further rotation, the flanges 19 reach the gaps between the flanges 12, and the spring 5 drives the carrier 2 axially. This provides a snap action which indicates that assembly has been completed. Rotation in the uncoupling direction is harder as the carrier 2 has to be driven back against the spring 5 by cams 21. The disc 4 is of silicone rubber. Portions 39, containing silver-plated copper spheres of 80- 200 Ám diameter, ensure reliable connection despite differences in the contact heights (Fig. 4, not shown). The disc 4 also provides a seal. Finger grips 13, 28 are provided. The contact heads (30, 34) are formed integrally at the ends of wires (31, 35) and are held by force-fitted sleeves (33, 37).
Patent GB-536655-A (GB)
Title: Improvements in or relating to coal-cutting machines
IPC: E21C35/20
Filed: 1939-12-18
Abstract: 536,655. Coal-cutting machines. ANDERSON, A., and ANDER'SON, BOYES & CO., Ltd. Dec. 18, 1939, No. 32409. [Class 68 (i)]  In a coal-cutting machine with a conveyer attachment which moves cuttings discharged from the cutter chain to a point clear thereof, the attachment has alternative power intake elements connected by gearing to rotate oppositely and either of which is connectible, by movement of the attachment on the machine, with a drive element driven by the machine motor so that the conveyer may be driven in the same direction in spite of reversal of the machine motor. A casting 3 supports a shaft 4 carrying a conveyer screw 5 operating in a casing 6, the shaft 4 being connected to a train of gears 10 ... 14 ; the casting 3 may be adjusted on the machine body 1 to bring dog-clutch elements on either of the gears 10, 11, into mesh with a dogclutch element on a shaft 9 driven by the machine motor through the shaft of cutter-chain sprocket 21. Specification 518,623 is referred to.
Patent GB-805928-A (GB)
Title: Improvements in or relating to wheel suspensions
IPC: B60G3/20
Filed: 1956-10-24
Abstract: 805,928. Hinges and pivots. THOMPSON PRODUCTS, Inc. Oct. 24, 1956 [Nov. 1, 1955], No. 32445/55. Class 65(2) [Also in Group XXXII] A road-vehicle spring-suspension (see Group XXXII) comprises a resilient joint consisting of a shaft 21, Fig. 3, mounted for rotation within a body 31 of resilient material supported in a housing 25 and arranged to be confined and compressed axially of the shaft 21 on lateral movement thereof. The resilient body 31 comprises a rubber sleeve which is journalled on the pin 21 by means of a sleeve 29 of nylon or polyethylene. The pin 21 has a head 21d with a spherically convex portion which engages, with the interposition of a nylon liner 35, a spherically recessed end-plate 28 of the housing 25. A lubricant retaining seal 19 is provided. In operation, free relative rotation between the pin 21 and the housing 25, is provided by the bearing action of the sleeve 29 and the liner 35. On relative lateral movement between the pin 21 and the housing 25, the convex portion of the head 21d rides up on the sides of the concave recess of the end-plate 28 and so loads the rubber sleeve 31 axially. In a modification, Fig. 2 (not shown), where a degree of friction damping is advantageous, the liner 35 is omitted. In a further modification, Fig. 6 (not shown), the head 21 is formed separately from the spindle, and has an axiallyprojecting cylindrical stud which engages a corresponding bore formed axially in the end face of the spindle. The head 21 when engaged with its stud in the spindle recess, may be freely rotatable relative to the spindle, or the engagement may be sufficiently tight for the head 21 and spindle to move as one. In a modification of the last construction, Fig. 7, the head 21 is replaced by a plate 182 having a conical shaped recess 183 in engagement with a conical shaped end-face 180 of the spindle, and a convex external surface in engagement with the recess of the end-plate 28. In a modification of the Fig. 2 construction, Fig. 4 (not shown), the convex portion 21d of the pin 21 is replaced by a concave recess in the head 21d which is engaged by an inwardly projecting covex surface of the end-plate 28.
Patent GB-333460-A (GB)
Title: Improvements in and relating to the distribution of wireless programmes
IPC: H04H20/76
Filed: 1929-10-25
Abstract: 333,460. Warwick, A., Taylor, J. A. A., and Holmes, H. C. Oct. 25, 1929. Relaying systems; receiving systems; thermionic amplifiers and detectors. - A dual-programme wireless receiver comprises a pair of high-frequency amplifying and rectifying units 1, 3, each with an individual high-tension supply 9, 10 and each completely screened, and a pair of low-frequency amplifying units 13, 14 connected respectively to the units 1, 2 and operating from a common high-tension source 15, so that two programmes can be reproduced at the receiver without interference. The units are housed in a single cabinet and operate from a common lowtension source 12 the negative lead of which forms the earth 7, 8 of the reception units. Each rectifying valve 20 is. connected to its lowfrequency amplifier by resistance-capacity coupling 21, 22 to eliminate cross-interference. between the receivers by induction. The output stage 18 of each low-frequency unit is fed with hightension current by choke-capacity 24, 25, 26 so that no direct current is impressed on service lines 23, 34, which are supplied through stepdown transformers 29 to reduce the voltage swing. One or both low-frequency units are detachably connected to its rectifier by bridges 35, 36 to permit the use of a gramophone pick-up or a microphone. Specification 319,984 is referred to.
Patent GB-988728-A (GB)
Title: Improvements in textile carding machines
Inventor: GRIMSHAW KEITH
IPC: D01G15/50
Filed: 1962-08-23
Abstract: 988, 728. Carding-engines. T. M. M. (RESEARCH) Ltd. Nov. 7, 1963 [Aug. 23, 1962], No. 32482/62. Heading D1N. Fibres are doffed in a carding machine by a doffer cylinder B arranged to provide a condensing action with a card cylinder A, doffer cylinder B being in its turn doffed with a condensing action by a doffing roller C that is followed by a single roller or a pair of rollers E, F which are not card covered. The doffed fibre web may be condensed into sliver form or may be retained in web form for delivery to the intake of a following carding machine.
Patent GB-1201871-A (GB)
Title: Fuel cell
IPC: H01M8/08
Filed: 1968-07-08
Abstract: 1,201,871. Fuel cells. VARTA A.G. 8 July, 1968 [8 July, 1967], No. 32493/68. Heading H1B. In a fuel cell with gas diffusion electrodes 2, 1 and adjacent fuel 4 and oxygen 3 chambers wherein liquid fuel-carrier 14 and liquid oxygencarrier 9 are decomposed on catalytically active layers of the electrodes to produce fuel and oxygen gas to power the cell, a rising main 12, 7 is provided between each liquid reactantcarrier storage chamber 13, 8 and its respective electrode, the volume of each rising main plus the volume of the conduit joining the rising main and its gas chamber being sufficient to take up all the gas produced at its electrode. As shown an alkaline fuel cell has aq. alkaline NaBH 4  fed to anode 2 where it decomposes to give H 2 , and aq. H 2 O 2  fed to cathode 1 where it decomposes to give O 2 . Liquid is displaced from chambers 4, 3 by the gas generated but the rising mains prevent gas leaking back to the storage tanks. In the case of a battery all the electrodes can be supplied with liquids or some may be supplied with gas produced at other electrodes. Excess gases may also be bled off and fed to another fuel cell or battery.
Patent GB-1372262-A (GB)
Title: Fluid flow control box
IPC: F16L37/32
Filed: 1972-02-10
Abstract: 1372262 Pipe couplings JOHN LAING & SON Ltd 10 Feb 1972 [4 Jan 1971] 32637/72 Divided out of 1372261 Heading F2G In a quick release pipe coupling for a detachable radiator, the insertion of spigot 62 into socket 55 opens valves 43, 43a, 50 and 50a. Locking balls 57 enter recess 63.
Patent GB-1589974-A (GB)
Title: Signal synthesiser spectrum contour scaler
IPC: G10L25/00
Filed: 1977-08-04
Abstract: A speech signal synthesizer features a time and frequency scaler for improved accuracy of signal synthesis. A digital signal representative of a first analog signal, such as a voice signal, having varying parameters, such as frequenty or amplitude, is converted by a synthesizer into an analog output signal which varies in substantially the same manner as the first signal. The synthesizer receives a transmitted digital signal representing the first analog signal and synthesizes the varying parameters thereof to provide the analog output signal. First, the digital input signal is applied to a serial-to-parallel converter and subsequently input to a modulated frequency generator controlled by the operation of a modulation controller. Digital data processed through the modulated frequency generator is time and frequency scaled, and it is this time and frequency scaling that provides improved accuracy in recreating the proper amplitude relationship of the first analog signal. Following time and frequency scaling, the processed digital data is input to an amplitude accumulator and subsequently converted into the analog output signal in a digital-to-analog converter. Time scaling is implemented by apparatus that utilizes the transmitted digital data information to interpolate between spectrum segments to present a smooth spectrum to the output analog signal. For frequency scaling, the frequency scaler interpolates between harmonic frequencies of the first analog signal in consecutive frames and the processed digital data of the time scaling. Both the time domain scaling and the frequency domain scaling are based on the value of a cosine squared function extending between adjacent data points on adjacent frames.
Patent GB-368747-A (GB)
Title: Improvements in and relating to the docking or un-docking of air-shipsí¬in windsí¬
IPC: B64F1/14
Filed: 1930-10-31
Abstract: 368,747. Shelters for aircraft. ROBERTS, R. D., 80, High Street, Epping Town, Essex. Oct.31,1930, No.32820. [Class 20 (i).] A combined wind shield and docking device for use in connection with airship hangars comprises a shield B of a length longer than the airship and formed of curved section and of such a depth that the air currents at the top and bottom are deflected above and below the surface of the airship A, and adjustable side struts 1 which contact with the ground on both sides of the shield to prevent its tilting, some of the struts being adjusted to support the airship. The shield is carried by a carriage K adapted to move on rails which divide in two directions from the hangars, A<1>, Fig. 2, so that the direction of launching may be varied according to the direction of the wind. The shield is formed of articulated sections so that it can adapt itself to any curvature, each section being formed as a braced structure covered with continuous or perforated sheeting or hinged flaps may be provided, and the struts 1 are hinged to both sides of the shield, throughout its length. These struts are telescopic and are positioned laterally of the shield by means of telescopic rods 4, pivoted to the supports for the shield and these rods and stays may be adjusted by hand or power. The struts may be provided with spiked feet U, Fig. 3, or ball-bearing casters as described in Specification 2973/13, [Class 52 (i), Furniture, Fittings &c. for], to contact with the ground during swaying of the shield as it is moved in and out of the hangar. Specification 15488/13 [Class 20 (i), Buildings and structures, Kinds &c. of], is referred to.
Patent GB-726967-A (GB)
Title: Improvements in or relating to parachute canopy structures
IPC: B64D17/00
Filed: 1952-12-29
Abstract: 726,967. Parachutes. FRIEDER, L. P. Dec. 29, 1952 [Jan. 23, 1952], No. 32836/52. Class 4. A parachute canopy is composed of flexible sheet material preformed substantially to the shape obtained by rotating of one half of an ellipse divided along its major axis about its minor axis. The ratio of the minor axis to the major axis is preferably between three-eighths and four-fifths, and is more preferably about three-quarters. A practical construction of the canopy is shown in Fig. 2, where a e is one sixth of a circle, centre g radius r, e f is one sixth of a circle centre j, radius R, and f b is one sixth of a circle centre h, radius r. The contour a e f b is said to be an accurate approximation to an ellipse. Formulae are given in the specification for computing rand R in terms of the desired semi-diameter a c and height c d. The portions a e and b f, and ef, may be made up from gores. Specifications 565,493 and 689,209 are referred to.
Patent GB-393302-A (GB)
Title: Improvements in the production of artificial filaments and threads in the form of hanks
IPC: D01D5/04
Filed: 1931-11-27
Abstract: <PICT:0393302/IV/1> <PICT:0393302/IV/2> <PICT:0393302/IV/3> <PICT:0393302/IV/4> Artificial threads are wound into hank form on a reel continuously with their production in such manner that the rate of drawing of the material from the extrusion orifices is constant and the rate of rotation of the reel is governed so as to maintain the rate of winding equal to the rate of drawing irrespective of the change of diameter of the package being wound.  Hanks can thus be obtained of any desired length of thread and of any desired size without variation of the denier of the thread.  The thread is taken round a feed-roller so as to ensure non-slipping contact between the thread and the feed roller which thus determines the speed at which the thread is drawn from the nozzle.  The reel may be cylindrical, or polygonal, or composed of radial arms, and provided with traversing mechanism to ensure cross-winding, and it may be collapsable so as to facilitate removal of the complete hanks.  As shown in Fig. 1, filaments 7 are drawn from the nozzles 8 by a roller 13 and taken up by a reel 14 around which the thread is wound in hank form.  A wick 29 applies water, oil, size, de-electrifying media, fugitive or other colouring materials, or other liquids to the filaments.  The wick may be supplied by liquid under pressure.  To compensate for the increasing diameter of the package being wound and the tendency for increased take-up, the reel is provided with a slipping friction drive 21, 22, 23.  A spring tension device 25 compensates for variation in tension due to the hexagonal shape of the reel.  As shown in Figs. 3 and 4, the thread 10 is led from the godet roller 13, round a guide roller 45, to a traverse drum 46 provided with a slot.  The drum 46 is in surface contact with a cylindrical reel 48 upon which the thread is wound.  Liquid is applied to the thread by a roller 55 which may be driven by a chain 57, or may be rotated by contact with the thread.  As shown in Fig. 5, a disc 65 is mounted on the end of the godet roller and a disc 69 is mounted on the end of the cylindrical reel 66.  A shaft 70 bears at its ends friction wheels 71, 72 of equal diameter, these wheels being in frictional engagement with discs 65, 69.  As the amount of thread on the reel increases, a roller 75 in fixed bearings pushes back the reel which is mounted on a pivoted arm 67.  The friction wheel 72 consequently engages the disc 69 at a point nearer to the periphery and the rate of rotation of the reel 66 is gradually decreased.  Specifications 165,519, 210,266, 244,947, [all in Class 2 (ii), Cellulose &c.], 344,528, 344,775, 346,267, 352,451, 385,978, 390,861, and 392,904 are referred to.
Patent GB-1397036-A (GB)
Title: Apparatus for the texturing of flat structures preferably of flat  textiles structures
IPC: D06M10/00
Filed: 1973-07-11
Abstract: 1397036 Irradiating with electrons TEXTILKOMBINAT COTTBUS VEB 11 July 1973 32985/73 Heading H5R A moving web 5 of material is irradiated with electrons through an endless belt having slotshaped apertures 7 which passes under the scanner of an electron accelerator transversely to the motion of the web. The speeds of the web and the belt are adjusted so that the points at which the radiation passes through to the web travel at the same speed as the web. The apparatus can be used to produce a textured pattern on textiles, the pattern being selectable by varying the shapes of the slots in the belt.
Patent GB-887683-A (GB)
Title: Improvements in loading apparatus for use on motor vehicles
IPC: B60P1/50
Filed: 1959-09-29
Abstract: 887,683. Guided skip hoists mounted on vehicles. VENZIANI, W. Sept. 29, 1959 [April 8, 1959], No. 33009/59. Classes 78 (3) and 78 (4). [Also in Group XXI] A skip formed with two surfaces 10, 11 (Fig. 1), runs on guides 4, 4a over the cab of a vehicle to deliver to the body 2. As shown, the portions 10, 11 are pivoted together and connected by a breakable strut 17. The ends of the guides 4, 4a are curved to facilitate picking up and discharging material. The operating table 13 passes to a winch driven either from the engine of the vehicle or independently. The guides 4, 4a may be of angle-section to receive plain rollers 12 or may be flat blades for engagement with flanged rollers. The strip may be carried by a carriage 11a (Fig. 4) relatively to which it has a short sliding motion. The skip may be provided with tines and with side walls.
Patent GB-1075146-A (GB)
Title: Electrophotographic recording members and processes of preparing same
IPC: G03G5/10
Filed: 1964-08-13
Abstract: An electrophotographic recording member comprises a paper substrate having coated thereon a photoconductor in an insulating resin wherein the reverse side of the paper has been coated with an aqueous solution of Na, Li, K or NH4 hydroxide.  This treatment is said to give a recording member with good properties in a wide range of humidities.  The aqueous solution preferably contains 0.5 - 10 wt.% of the hydroxide.  Coated surfaces have a resistance of 107 - 1010 ohms. per square.  Suitable photoconductors may be the oxide, iodide, sulphide, selenide or telluride of Zn, Sb, Al, Bi, Cd, Hg, Mo or Pb whilst Se, As2S3, PbCrO4 or Cd arsenide may also be used but the preferred photoconductor is ZnO.  The insulating binder may be an alkyl aryl silicone or a styrene-butadiene copolymer. The paper substrate is preferably coated using a roller applicator (Figure 1, not shown), with the aqueous alkaline solution with or without an added alcohol, prior to the application of a solution of the photoconductor and insulating binder in a organic solvent e.g. trichloroethylene or toluene.  The recording member is then dried.  A graph (Figure 4, not shown), comparing the properties of the treated and untreated members is given.
Patent GB-630208-A (GB)
Title: Improvements in induction coils for electro-therapeutical and other purposes
IPC: A61N1/32
Filed: 1946-11-07
Abstract: 630,208. Induction coils. OLIVER, C. R. Nov. 7, 1946, No. 33078. [Class 38 (ii)] [Also in Group XXXVII] In induction coil apparatus for electrotherapeutical or other purposes the electric supply from a source C to an inductance A through a variable resistance E is periodically interrupted by a mechanical make-and-break switch F, the energy in the inductance being conducted through a further circuit to the patient or other load at KL, in the form of a unidirectional pulse upon each break in the supply to the inductance. Contact O mounted on a spring-connection M is rotated on a spindle, Fig. 2 (not shown), so that it periodically allows contact between spring-mounted contact J and fixed contact H when current flows through the inductance A, and then lifts J from H so that the energy from inductance A appears as an impulse at terminal KL.
Patent GB-1534464-A (GB)
Title: Display device
IPC: G09F11/02
Filed: 1977-08-08
Abstract: 1534464 Changing displays PRISMA NEON AB 8 Aug 1977 [9 Aug 1976] 33137/77 Heading G5C A multiple triangular prisms 5 are rotatably mounted on axles 6 in parallel side-by-side relation for synchronous rotation by means of motors 11 and pulleys 9 and toothed belts 10, such that a recurring sequence of composite displays is shown by the prism faces.
Patent GB-172651-A (GB)
Title: Improvements in or relating to locking devices for doors, particularly to vehicle doors
IPC: E05C9/04
Filed: 1921-12-09
Abstract: 172,651. Dandois et Cie, J. B. Dec. 10, 1920, [Convention date]. Addition to 167,448. Multiple fastenings for doors; latches, sliding.-In a multiple fastening for the doors of vehicles &c. of the type described in the parent Specification, the latch bolt and vertical hook bolt mechanisms are arranged so that the door when latched car be reopened without first locking the door by the vertical hook bolts. The door being open, the hook bolts, which are connected by arms 13, 14 provided with racks co-operating with a toothed wheel 15 mounted on the same spindle as the latch-actuating cam 20, are held in the unlocking position, Fig. 4, with their ends pushed outwardly, by a projection 16 on the latch 17 engaging in a notch 18 in the arm 14. Secured to the spring- pressed latch 17 is an auxiliary bolt 19, which, when the door is shut, bears against the door jamb and prevents the latch being fully shot, so that the projection 16 does not re-engage with the recess 18, and the hook bolts can then be operated by turning the handle in the counter-clockwise direction. The hook bolts are then secured in the locking position by the projection 16 engaging another recess, below the recess 18 in the arm 14 and also by a second projection 16b on the latch 17 engaging a recess 18 in the arm 13<b>. A certain play is provided between the teeth of the pinion 15 and those of the racks to allow the cam 20 to withdraw the latch 17 sufficiently to free the projections. 16 and 16<b> from their recesses before the pinion 15 acts on the racks. When the door is latched, but is not locked by the hook bolts, the cam 20 is in its Fig. 4 position but the projection 16 is not in engagement with the recess 18 in the arm 14 and the door can be re-opened by turning the cam 20 in the clockwise direction, sufficient play being provided between the teeth of the pinion 15 and the racks to allow the cam to withdraw the latch fully without affecting the racks. The latch 17 can be locked in the shot position, when the door is closed, by a projection 22 on the key-operated bolt 21 engaging in a recess 23 in the latch.