baber/WOPTO huggingface dataset:
Patent GB-1150495-A (GB)
Title: Push-Button Electric Switch Assembly
IPC: H03J5/32
Filed: 1967-10-30
Abstract: 1,150,495. Mounting switches; switches held set and freed mechanically. SCHOELLER & CO. ELEKTROTECHNISCHE FABRIK. 30 Oct., 1967 [14 Dec., 1966], No. 49175/67. Heading H1N. A push-button switch assembly comprises a channel member 1 having identical apertures 29 along one face and identical apertures 25 along the opposite face and extending into the base so that structures 4, carrying fixed contacts 18, may be fitted therein by means of clamp members 5 and 6. Grooves 26 in members 5 and 6 engage the edges of apertures 25 while projections 27 engage recesses 28 in members 4. Slides 3, having printed contacts (16, 17, Fig. 3, not shown) thereon, pass through apertures 29 into respective structures 4 and maintain respective gate members 8 in position between the apertures 25 and recesses 20 in the clamp members. A bent wire member 7 located in slots (11, 12, Fig. 3, not shown) in each slide 3 has one end co-operating with a conventional heart-shaped track (10, Fig. 2, not shown) in the associated gate member 8 and locates the slide 3 in two positions against the action of spring 9. A snap-action switch (Fig. 6) which may replace one or more of the structures 4 has its own contact slide 42 linked by snap spring 41 to an auxiliary slide 40 which is coupled by a hole 39 to a lug 38 on button slide 37 carried in the member 1, and special clamp members 36 have pins 49 engaging in recesses 48 on tabs 44 extending from the switch body and seating on shoulders 47. Tabs 45 are bent to retain the switch in the mounted position. A spring 50 restores slide 37 on release from a gate member (not shown) similar to members 8.
Patent GB-1383359-A (GB)
Title: Cartrdige-type fuse holder assembly
IPC: H01H9/10
Filed: 1972-10-26
Abstract: 1383359 Cartridge fuse holder assembly SQUARE D CO 26 Oct 1972 [8 Nov 1971] 49341/72 Heading H2G [Also in Division H1] A fuse holder assembly comprises a housing of insulating material with a rectangular socket 54 extending from an open front end 58, a wall providing a closed rear end 64 and a unitary removable fuse holder, having a body portion 76, received within the socket 54, a finger grip portion 78, means for positioning a cartridge fuse 44, 46 with its axis perpendicular to the socket end 64 and its caps 110 touching contacts 124 in side walls 60, 62 and a projection 134 which is held in position in socket 54 by resilient projections 136 when the holder 76 is fully inserted. The contacts 124 are connected to terminals 122 with screws 128 and wire clamps 130. The fuses 44, 46 are installed in recesses 86, 90 through an opening between side walls (94) so that the fuse caps 110 touch abutments 104 and are retained by detents (106, Fig. 4, not shown). Axial displacement is prevented by walls 96, 100. The caps 110 and contacts 124 do not touch when projection 134 is forward of the members 136. The fuse assembly may be associated with an electromagnetic switch for controlling a motor (see Division H1).
Patent GB-1328339-A (GB)
Title: Method of combining bitumen with a mineral aggregate
IPC: E01C7/18
Filed: 1971-10-25
Abstract: 1328339 Bituminous materials BRITISH PETROLEUM CO Ltd 25 Oct 1971 [16 Nov 1970] 49426/71 Heading C3N [Also in Division E1] A method of combining bitumen with a mineral aggregate comprises the step of agitating an aggregate having an optimum moisture content whilst spraying it with heated bitumen under pressure. The term "optimum moisture content" is defined as that condition where the aggregate has by admixture absorbed the maximum quantity of water that may be added without formation of a slurry. In an embodiment water is added to agitated aggregate until optimum moisture content is attained. The method is applicable to the treatment of in situ aggregate in soil stabilization or aggregate to be used in road construction. In the example aggregate (1¢ inch max.) is agitated with water until optimum moisture content is achieved after which bitumen (400‹ F.) is sprayed thereon at a pressure of at least 250 p.s.i. until a bitumen content of 3% by weight is attained.
Patent GB-1029079-A (GB)
Title: Method and arrangement to indicate faults of components in self-correcting translators
IPC: G06F11/277
Filed: 1963-12-13
Abstract: 1,029,079. Electric selective signalling. STANDARD TELEPHONES & CABLES Ltd. Dec. 13, 1963 [Dec. 18, 19621, No. 49427/63. Heading G4H. In a self-correcting translator matrix in which the output is given by a highest signal on one lead, a fault indicator is provided which compares the value of the highest signal with a reference value and a difference indicates the presence of a fault. The translator matrix BM1, Fig. 1, converts a binary scale representation on three pairs of mark and space leads e1, #e1, e2, #e2; e3, #e3 to an output on a corresponding one of eight leads. The output leads are connected to a correcting matrix PM1 of resistors weighted so that the input will cause an extreme value (24) on a corresponding output lead. The highest value is found by circuit El consisting of transistors T1-T8 having their emitters connected together and through resistor R1 to a positive source. The lead carrying the highest signal causes the corresponding transistor to conduct and the associated lamp L1-L8 lights. After one transistor has conducted the emitter voltages of the rest fall, preventing others conducting. If a fault develops in the output lead of matrix BM1 the correcting matrix produces modified signals, the correct lead still having the highest signal. Its value is now 15 instead of 24. The common emitter line is also connected to one side of a meter M, the other side of which is connected to a potential divider giving 24 units of signal. In the absence of a fault the signals on both sides are equal and the meter registers zero. If the marked output lead of matrix BM1 is opencircuit and the extreme value is only 15, the meter gives a negative reading. If one of the resistors of matrix PM1 is short-circuited an extreme signal higher than 24 may be obtained and the meter will give a positive reading. The meter may be replaced by a relay giving an alarm when a fault is detected. If the conversion was the other way round from a marking on one lead to a combination of markings on a number of leads, extreme value detectors will be necessary for each output pair (mark and space). Meters could be provided for each such pair or a switch may. be adapted to connect them in turn to a meter for fault indication. In the form of Fig. 4 (not shown) the extreme signal detector E4 gives outputs on leads b1-bm for successive conversions and in each case the value of the extreme signal is compared with a reference value B. The difference, if any, passes to register R having a cell for each output lead b1-bm, the difference being stored in the corresponding output position. When the register R is filled the values stored are passed to translator Z designed to indicate which element of the circuit is faulty by the distribution of difference signals on the register R.
Patent GB-497294-A (GB)
Abstract: 497,294. Electric alarm clocks. MOORE, H. E., and RICKETS, W. J. July 20, 1937, No. 20074. [Class 139] Alarm mechanism for electric synchronous motor clocks comprises a reed or armature 5 vibrated by the operative electromagnet of the motor or by an electromagnet directly connected across the supply mains and normally restrained or clamped by a shouldered sleeve 6a slidable axially on an alarm time-setting spindle 7, and when a projection or indentation 6b comes into angular coincidence with a coacting projection or indentation 10a on a member rotated by the time-indicating gear train of the clock, the reed is released to give an alarm. An arm 12a is adapted to be moved into the path of the reed to stop the alarm.
Patent GB-1526766-A (GB)
Title: Cable gland
IPC: H01R13/52
Filed: 1975-12-04
Abstract: 1526766 Cable glands M HAMACHER 4 Dec 1975 [4 Sept 1975] 49753/75 Heading H2E A cable gland comprises two plastics or metal parts 1, 2 screwed together and an annular rubber packing piece having an annular flange 6 which is held between respective shoulders 4, 13 of the parts 1, 2, and having a tapering portion 6a which seats on the conical inner surface of the part 1. As described a washer 14 protects a cable held in the gland from torsional forces, and the gland assembly is snap fitted into a hole in the casing into which a cable is to be carried.
Patent GB-1535056-A (GB)
Title: Measuring instrument
IPC: F16J15/40
Filed: 1975-12-05
Abstract: 1535056 Protecting movable measuring elements DR JOHANNES HEIDENHAIN GmbH 5 Dec 1975 [20 Dec 1974] 50044/75 Heading G1M [Also in Division F2]  In apparatus for measuring displacement of a workpiece, a reflector 11 is housed within an elongated vacuum chamber 20 and is coupled to the workpiece by a carrier 19 which extends through a longitudinal slit 22 in the chamber, the slit 22 being sealed by flexible elements 23, 24 and a sealing fluid 27 or F which lies between or around the contracting portions of the elements 23, 24, this arrangement permitting movement of the reflector within the chamber in accordance with movement of the workpiece. In the embodiment of Fig. 2, the fluid 27 is a vacuum oil. In all other embodiments, the fluid is a magnetic liquid F which is held in position by permanent magnets 125, 126, or by forming the carrier 19 as a magnet.
Patent GB-1094356-A (GB)
Title: Improvements in or relating to analogue-to-digital convertors
Inventor: MORRIS ADRIAN GERALD
IPC: H03M1/00
Filed: 1964-12-09
Abstract: 1,094,356. Analogue-digital converters. MULLARD Ltd. Dec. 9, 1964, No. 50108/64. Heading G4H. An unknown voltage analogue input signal is applied via a comparator amplifier 1 (Fig. 2) and delay networks to digit triggers 18, 19, 20, 21 and the output signal from each trigger successively fed back to the amplifier for comparison with the input signal. The triggers 18, 19, 20, 21 are operated in sequence from the least to the most significant digit until the output from the amplifier 1 changes polarity, when the sequence immediately recommences with the least significant digit. In one embodiment (Fig. 1, not shown) when the input signal ceases, switches 7, 27 are closed and switch 13 opened connecting the control voltage stored in the triggers with the output terminal 26. In a second embodiment (Fig. 2) the voltage stored in the triggers is connected to the output 26 when switch 13 is opened and switch 38 closed. This embodiment has the advantage that the control voltage can be continuously monitored.
Patent GB-1132857-A (GB)
Title: Electrical rotating machines
IPC: H02K23/62
Filed: 1965-11-26
Abstract: 1,132,857. Rotary electric machines having rotating brushes. E. PELLERIN. 26 Nov., 1965 [26 Nov., 1964], No. 50396/65. Heading H2A. A rotary electrical machine has relatively rotatable concentric inner and outer windings connected physically and electrically to respective commutators 10, 20 to which current is fed and taken via brushes 11, 19 fast with that winding other than the winding to which the commutator is connected. In the motor shown, the rotary armature 9 and stator field 8 are connected in series to supply conductors 12, 15 via the brushgear and a conductor 14, the brushes 11 being stationary and the brushes 19 being carried by arms 18 and supplied via sliprings 17 rotatable with the rotor shaft 13. The field brushes 19 (3 in Fig. 1) are grouped in pairs which individually short a coil 1 of the winding. In another embodiment the "stator" also rotates, and the Specification envisages applications to speed-changing mechanisms having gearing, and kinetic energy accumulators producing an electrical or mechanical output.
Patent GB-1485515-A (GB)
Title: Method and means to prevent cavitation erosion in propeller ducts
IPC: B63H5/07
Filed: 1974-11-21
Abstract: 1485515 Ducted propellers NORGES SKIPSFORSKNINGSINSTITUTT 21 Nov 1974 [4 Dec 1973] 50550/74 Heading B7V To prevent cavitation between the tips of a ducted propeller 6 and the inner surface of the duct 10, air is fed into this region via a plurality of tubes 14. The tubes 14 are welded to the inside of the duct to terminate on its inner surface.
Patent GB-1200468-A (GB)
Title: Improvements in or relating to knitting machines
Inventor: FLAD KARL
IPC: D04B15/78
Filed: 1967-11-07
Abstract: 1,200,468. Knitting-machines. K. FLAD. 7 Nov., 1967 [15 Nov., 1966; 19 July, 1967], No. 50581/67. Heading D1C. A pattern mechanism for a flat machine comprises an member displacable towards the ends of needle jacks and having means controlled at the distates of a pattern and held by electromagnets for selectively preventing their contact with the jacks. The displacable member 1 carries two rows 2, 3 of apertures oppositt needle jack 13. The apertures are selectively coverable by pivoted levers 5 actuated by electromagnets 9. Selected jacks are moved on displacement of member 1 by the surface 12 of levers covering selected apertures. The remaining jacks pass through the apertures. The levers may be locked in the positions shown. In the embodiment of Fig. 4 levers 21 pivotally mounted on member 27 are pivoted towards holding magnets 29 by cams 26 fixed to shafts 25. To prevent stray magnetic flux reaching the jacks the levers may include a non-magnetisable insert adjacent the jacks, or may be non-magnetisable with a magnetisable insert opposite the magnet. Alternatively the jacks may be non-magnetisable. The member 27 is of non-magnetic material. In a further modification the electromagnet influences a coupling connecting a drive to the members covering the apertures. To ensure the lever will fall away from the magnet when released it may be de-magnetised when held, by a pulse of opposite polarity or an alternating current of decreasing strength in the magnet, or a pulse applied to a second winding. The electromagnets may be controlled by perforated cords or film, or magnetic tape. The perforations required for each course may be arranged in several rows across one narrow cord.
Patent GB-1488494-A (GB)
Title: Bodies of rotation
IPC: D06B23/02
Filed: 1974-11-22
Abstract: 1488494 Rollers METZELER SCHAUM GmbH 22 Nov 1974 [22 Nov 1973 14 May 1974] 50720/74 Heading F2U A roller comprises a shaft 10 on which a pair of annular members 14 are mounted by spokes 12, strips 19 of fibre-glass fabric extending parallel to the axis of shaft 10 are adhered to and extend between the members 14 and have a settable synthetic resin applied to them, a layer (or layers) of helically wound strips of fibre-glass 24, each impregnated with settable synthetic resin, then being applied to form an accurate cylindrical shape, a reinforcing girdle of helically wrapped wire or tape 32 then being optionally applied before a finishing coat 25 of settable synthetic resin is applied. The coating 25 may be machined to give a desired finish or a yet further coat 33 can be applied and given a desired surface profile 29 by an embossing roll 34. An interchangeable sheet may be used in place of coat 33. Spacing elements 31, used as stiffeners during assembly may be removed from the finished roller. The annular end-members 14 each comprise an assembly of U-shaped cross-section members to provide an annular space which is filled with plastics material, possibly reinforced with glass fibres, the filling being smoothed and levelled at the surface 16. The shaft 10 is shown in two parts. The roller may be used in coating or for applying materials to carpets, floor coverings, textiles, woven, knitted or braided goods, paper or cardboard for dyeing or cleaning.
Patent GB-1370156-A (GB)
Title: Information recording and replay methods and apparatus
IPC: G03B1/56
Filed: 1971-11-02
Abstract: 1370156 Driving tape or film in cassette BELL & HOWELL CO 2 Nov 1971 [16 Nov 1970] 50844/71 Heading G5R A loop of information carrying tape or film is withdrawn from a cassette past a function performing station to a drive capstan about which the loop is disposed. The function performed can be the recording or display of picture information on film, the processing of film, the cleaning of tape or as described the recording or playback of information stored on magnetic tape 15 in twin reel cassette 13. Preparatory to insertion of the cassette, cover 80 is slid open in direction of arrow 81 and this movement drives an endless inclined belt 67 via rack 84, pinion 85 and gear 83 to a position in which a bracket 66 mounted on the belt moves an actuator 57 to dispose fingers 54, 55, mounted on carriage 51 running on a pivotable track 47, in the position shown in Fig. 1. On insertion of the cassette the tape 15 extending across an aperture in the cassette moves under the fingers as shown. On closure of the lid the endless belt is again driven initially rotating the bracket 66 about driven pulley 70. This movement is coupled to the fingers via actuator arm 57 and spring 60 and they move from the position shown parallel to the tape to a position transverse thereto. Further drive moves the bracket along the top run of the belt and draws the tape in a loop from the cassette. During this movement the inclination of the belt pivots the track 47 and ensures that the loop clears the capstan. As the bracket moves around the idler belt pulley 71, the fingers change direction and the loop is lowered over the capstan. Final closure of the cover moves the fingers into a retaining member 93, activates the drive by operation of switch 96 and finally moves the magnetic head 100 to position 104 in engagement with the tape.
Patent GB-1102099-A (GB)
Title: Improvements in or relating to teleprinter print-out mechanisms
Inventor: FEDIDA SAMUEL
IPC: B41J1/20
Filed: 1964-12-17
Abstract: 1,102,099. Selective printing. MARCONI CO. Ltd. 15 Oct., 1965 [17 Dec., 1964], No. 51410/64. Heading B6F. A teleprinter print-out mechanism comprises an endless flexible belt which travels across the printing line, the belt carrying embossed characters and provided with corresponding edge serrations 12 which, in conjunction with a coil 10 and core 11 generate impulses which are conveyed to a counter that registers the instantaneous number of pulses from a datum position of the belt. The datum position is registered by a particularly long impulse, generated by a larger serration 13. The coil 10 is mounted on a hammer carriage which travels in letter-space direction. The hammer is tuned to magnetically operate when the generated signal agrees with the input signal. As shown the characters on the belt are in reversed or positive type.
Patent GB-1358430-A (GB)
Title: Pigment print pastes
IPC: D06P1/607
Filed: 1971-11-05
Abstract: 1358430 Bis-polyether urethanes BADISCHE ANILIN- & SODA-FABRIK AG 5 Nov 1971 [7 Nov 1970] 51524/71 Heading C3R [Also in Division D1] Diisocyanate compounds based on diphenylmethane, hexamethylene and toluylene are reacted with polyoxyethylated alkanol under a nitrogen atmosphere in a molar ratio of 1 : 2 in presence of 0À1% by weight tri-n-butylamine. The polyoxyethylated alkanol may contain 80 to 470 oxyethylene groups and contain C 12-22  alkyl groups, e.g. i-tridecyl, stearyl and ndodecanyl.
Patent GB-1172087-A (GB)
Title: Machine Tool
Inventor: HAUTAU CHARLES F
IPC: B23Q1/01
Filed: 1966-11-17
Abstract: 1,172,087. Vertical lathes; grinding. BLACK CLAWSON CO. 17 Nov., 1966, No. 51627/66. Headings B3B, B3D, B3K and B3T. A machine tool for machining large rolls comprises a vertically extending frame 34, mounted on a base 29, adapted to receive a roll 70 with its axis extending vertically, poweroperated drive means 221, 222 and 240, 242 including a chuck 220, 245, 250 which grips the roll to rotate it about its axis, a bottom centring member 150 mounted on the frame 34 which engages in a preformed and aligned centre 115 in the lower end of the roll and a top centring member 160 which engages in the preformed centre in the upper end of the roll, the top centring member being movable vertically with respect to the frame 34 to permit engagement of the top centring member with the roll and for adjustment to accommodate rolls of different lengths. Vertical guideways 122 are provided in the frames for the cutting and grinding tool slides 127, 130 and means is provided for moving the tool slides along the roll surface while the roll is being rotated. The unmachined roll is delivered to the machine tool and is positioned and supported by rollers 68 on a loading carriage 42 in a horizontal position. The loading carriage is positioned adjacent the vertical frame of the roll turning means. A bridge unit 90 is positioned on the machine base 26 opposite the vertical frame 34 and is displaceable towards and away from the vertical frame and straddle the roll 70 when located on the horizontally disposed supporting carriage 42. The bridge member is provided with sensing means 292, 294 which, when the bridge member 90 moves astride the roll, rollers at the end of the sensing means contact the roll surface, the action of which is transmitted to means which subsequently actuate fluid means 66 to move the rollers 66 and the roll 70 into a correct alignment for machining. Clamping arms 76 are then actuated by fluid pressure to clamp the roll on to the carriage 42. The roll 70 having been correctly aligned, the bridge 90 is traversed to each end of the roll to machine with tools 101, the turning centres therein and also at one end to machine flats 116 by the milling cutter 102 for engagement by the driving chuck. When the roll alignment has been effected and the centres machined, the carriage 42 is pivoted about the shaft 45 at one end by an hydraulic ram 47 which positions the roll with its axis vertical between the upper and lower centring members which are actuated to engage the roll. The carriage is then lowered to its horizontal position and the final machining effected by the cutting tools 32 and grinding tool 138 on the tool slides on the vertical guides of the frame 34. The tools are adapted for independent operation and the movement of the components of the machine are effected by fluid motors incorporating a drive through a screw-and-nut mechanism. The machine may be actuated by tape control or by an operator using a console and positioned in a movable platform 39 on the vertical frame.
Patent GB-1535747-A (GB)
Title: Electron beam welder apparatus
IPC: H01J37/24
Filed: 1975-12-17
Abstract: 1535747 Automatic current control INSTITUT FUR KERNTECHNIK UND ENERGIEWANDLUNG EV 17 Dec 1975 [20 Dec 1974] 51713/75 Heading G3R Electron beam welding apparatus includes an electron gun connected in parallel with a tapped voltage divider across high voltage terminals. The impedance of a device connected in circuit with the gun is controlled by a signal fed to an electrode of the device and derived by a comparator in accordance with actual and desired beam current control signals. As shown in Fig. 1, an electron gun 2 has a cathode 4, anode 6, and control electrode 8 connected to one end of a voltage divider R3-5 across a high voltage supply 10. The cathode 4 is connected to a tap of the divider through a current blocking diode 16, and to the control electrode 8 through an electron tube 14. The impedance of the tube 14 is controlled by a comparator 20 receiving an actual beam current signal from a series resistor R2 and a desired value signal from an input signal source 22 through voltage frequency converters 24, 32 and an optical link including a light emitting diode 26, glass rod 28 and phototransistor 30. The source 22 may provide a constant voltage with start and finish ramps, a series of pulses, or a digital signal. Overcurrent protection contacts 40 are opened by a relay coil 363 if the actual beam current exceeds the desired current by more than the value of a threshold voltage supplied from a terminal 38 to a comparator 36. In another embodiment, the desired current signal may be related to the current which, during welding, penetrates the workpiece.