baber/WOPTO huggingface dataset:
Patent GB-1247938-A (GB)
Title: A building structure
Inventor: BENTLEY CHARLES ALEXANDER
IPC: E04H6/08
Filed: 1969-11-17
Abstract: 1,247,938. Multi-storey building. PORTABLE PARKING STRUCTURES INTERNATIONAL. 17 Nov., 1969, No. 56117/69. Heading E1A.  A multi-storey building e.g. car-park, comprises a framework of columns and longitudinal beams 7 and cross beams 9 with a number of precast concrete slabs attached to the beams to form decks and connecting ramps, the slabs having cast-in fastener elements for ready attachment to the beams. Each fastener element comprises an angle member 17, 18 (Fig. 3) with a threaded sleeve welded to the lower flange for the reception of interconnecting bolts, each sleeve being joined to an anchor bar 25. During erection, the sleeve elements act as means of attachment of the slabs to e.g. a suspension cable of a crane. The space between adjacent slabs is filled with a removal sealant viz. plastics tube and sealant 30. The margins of the ramp slabs are provided with concrete rails 37 (Fig. 6).
Patent GB-1164270-A (GB)
Title: Apparatus for Electrical Measurement of the Speed of Rotation of a Machine.
IPC: G01P3/42
Filed: 1966-12-16
Abstract: 1,164,270. Measuring rotational speed, electrically. BROWN BOVERI & CO. Ltd. Dec. 16, 1966 [Dec,18, 1965], No. 56436/66. Heading G1N. An apparatus for the measurement or control of the speed of a rotary asynchronous machine Fig. 1 produces an alternating output voltage having speed-dependent frequency and speed independent constant amplitude. The apparatus comprises an A. C. generator 2, coupled to a shaft of the machine 1, and having separately excited rotor 3 fed through slip rings 5 from an A. C. source 6 with a square waveform voltage a Fig. 2 of constant amplitude at a frequency f h , which is relatively high compared with the rotational frequency of the rotor 3 and machine 1, and a three phase armature 4 which is stationary, or in an alternative embodiment Fig. 3 (not shown) may be rotated by a separate drive. The rotor field induces in the stator sinusoidally modulated A.C. voltages b Fig. 2 where the envelope frequency is proportional to rotor speed na. Demodulator means are provided for removing from the armature output voltage the component at frequency f h  to produce a constant amplitude signal at the rotational frequency. The rate of change of flux produced in the stator windings by the rotor rotation is small compared with the rate of change of flux due to the alternating voltage from source 6 and hence the voltage amplitude of the stator output is substantially constant. In an alternative embodiment Figs. 4 and 5 (not shown) the generator 2 has a stationary three phase stator and a three phase rotor, and the rotor is energized by an auxiliary A. C. source the output waveforms each phase of which are similar to that shown in Fig. 2, that is a square wave voltage at f h  modulated by a low frequency voltage. In a further arrangement, Fig. 3 (not shown), the stator is driven by a synchronous machine (9) while the rotor is driven by an asynchronous machine(1) connected to the same three phase source as machine (9). If the stator is driven in the same direction as the rotor than the filter unit (7) produces an output at the slip frequency of the asynchronous machine.
Patent GB-1299649-A (GB)
Title: Klystron
IPC: H01J23/00
Filed: 1970-11-27
Abstract: 1299649 Klystrons PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Nov 1970 [2 Dec 1969] 56480/70 Heading H1D A heat trap, for an air-cooled klystron in which a number of components 15, 16 &c. are stacked to form a series of individual resonators 4, 5, 6 &c., each provided with cooling ribs 14, comprises a thin-walled pipe 20 with cooling ribs 21 which is inserted between two resonators in the stack. The ribs 21 are of equal radial extent to ribs 14 and are provided with circumferentially arranged apertures 22 through which pass members 23 to provide support for the trap. The trap is preferably situated between the series of adjacent narrow-band resonators 5, 4 &c. and the output wide-band resonator 6. The tube 20 and support members 23 are preferably made of a poor heat conduction material, e.g. stainless steel or an Fe-Ni-Co.
Patent GB-1150185-A (GB)
Title: Improvements in Electrical Machines.
IPC: H02K15/16
Filed: 1967-12-13
Abstract: 1,150,185. Caulking. ROBERT BOSCH, G.m.b.H. 13 Dec., 1967 [17 Dec., 1966], No. 56572/67. Heading B3U. [Also in Division H2] The bearing bracket of an electric motor (see Division H2) is axially secured by locating radially extending tongues 30 in recesses 33 in the end of the motor casing. The edges of the recess are peened at 42, over the tongue by a cold chisel whose edge α tapers at radial angle #.
Patent GB-1391270-A (GB)
Title: Photolithography
IPC: G03F1/00
Filed: 1971-12-08
Abstract: 1391270 Photomask; photographic apparatus RANK ORGANISATION Ltd 6 Dec 1972 [8 Dec 1971] 56937/71 Headings G2A and G2X A photomask for exposing a spaced photosensitive element using transmitted or reflected light comprises (i) a pattern to be reproduced and (ii) at least one fiducial mark comprising a plurality of elements so arranged that, when illuminated with light of a predetermined wavelength, the diffraction effects at the adjacent edges of adjacent elements overlap and cancel to provide a single dense image of the or each fiducial mark. An apparatus for use in the manufacture of planar semi-conductors comprising means for mounting an element of semi-conductor material bearing a layer of photo-sensitive material, the mask as defined above, means for mounting the mask spaced from the said element in a predetermined relative orientation, means for illuminating the mask with radiation of said predetermined wavelength and to which the photo-sensitive layer is insensitive, and means sensitive to radiation which has been transmitted through or reflected from the mask and fallen on the element to detect the relative positions of the fiducial mark on the mask and a fiducial mark on the element and operative to effect, automatically, alignment of the two fiducial masks. The apparatus may operate in the same way as that described in Specification 1248564. Reference has been directed by the Comptroller to Specification 1275672.
Patent GB-1375299-A (GB)
IPC: F16B2/14
Filed: 1972-12-12
Abstract: 1375299 Cargo fittings LASH SYSTEMS Inc 12 Dec 1972 57229/72 Headings B7S and B7A [Also in Division E2] Cargo lighters or barges such as 12, 12<SP>1</SP> each have four corner posts 14 for vertically stacking the lighters one upon the other. Each corner post has a cap projection at its upper end having flat sides 15 and a base member 16 having a socket with walls 17 at its lower end complemental to the cap. Each base member has a wedgeway with an inclined wall 21 to receive a wedge 18. Coil spring 22 connected between the base member and the wedge urges and maintains the wedge against the cap projection and maintains locking engagement between the cap projection and its complemental base.
Patent GB-1281460-A (GB)
Title: Analog to digital converter
Inventor: KUCKEIN PAUL AUGUST
IPC: H03M1/00
Filed: 1970-12-03
Abstract: 1281460 A/D converters INTERNATIONAL BUSINESS MACHINES CORP 3 Dec 1970 [31 Dec 1969] 57386/70 Heading G4H An input analog signal is supplied to vary the frequency of a pulse generator 14, first and second counters 10, 12 are respectively connected to count the output pulses of generator 14 and constant frequency clock pulses 20, the two counters are each settable to a different variable calibration factor stored in a respective store 26, 28, and in operation the two counters are controlled to count pulses from the respective sources 14, 20 until the counter 12 reaches a predetermined count. The two calibration factors may be chosen so that counter 10 reaches a count of 0 and 1000 for the lower and upper limits of the input range. Calibration.-An automatic sequence of steps is performed under control of circuit 30 as follows:-(a) Counter 12 is set to a number held in register 28 via gates 53, this number being arbitrarily chosen or the result of a previous calibration, and counter 10 is set to zero. (b) Counter 10 is counted down with generator 14 connected to reference source 15 corresponding to the lower limit of the input range until counter 12 has been counted down to zero. (c) Counter 12 is counted up until counter 10 has been counted up from the previous count to a predetermined number, e.g. 1000, with generator 14 connected to a second reference source 17 corresponding to the upper limit of the input range. (d) The count then held in counter 12 is compared with the number in register 28, and if they do not agree to within an acceptable tolerance, the count is transferred to register 28 via gates 44. The process (a-d) is repeated until the count obtained in counter 10 is within the required tolerance of the previous count. Finally, counter 10 is counted down from zero at the lower limit frequency and the count attained when counter 12 has been counted down from its preset value to zero is transferred to register 26 via gates 49.
Patent GB-1293766-A (GB)
Title: Plant for continuously providing a flexible small diameter metal tube with an insulating sheath of expanded plastics material
IPC: B29C48/09
Filed: 1969-11-26
Abstract: 1293766 Coating tubes by extrusion BENTELER-WERKE AG 26 Nov 1969 [16 Dec 1968] 57804/69 Heading B5A [Also in Division F2] A metal tube 1, Fig. 1, is sheathed with expanded plastics, e.g. polyolefine expanded by 0À2 to 1À5 parts by weight of azodicarbamide, on passage through a crosshead extrusion die 4 located in a vertically descending path of the tube 1 which is helical and substantially of the same diameter as the tube coils 30, 30a of vertically spaced coaxial reels 2, 2a from which it is respectively drawn and fed to. The crosshead 4, Fig. 2, which is fed with plastics from a passage 22, includes a mandrel 19 which is axially adjustable in a nut 38 to vary the dimensions of the extrusion orifice 37 and contains a bore 18 of more than twice the diameter than the tube 1 which is guided therethrough along the curvature of its helical path by orifices 40, 41 of replaceable members 20, 39, the member 20 being clamped between parts 19a, 19b of the mandrel 19. The axes of the orifices 40, 41 are preferably tangential to the path of the tube 1 as in the Fig. 2 embodiment wherein the tube 1 passes through the orifice 37 at an angle to the axis thereof, but in the Fig. 3 embodiment (not shown), the orifices (40, 41) are arranged for the passage through the orifice 37 to be coaxial therewith. The bore 18 is connected at 15 to vacuum, which may extend to the orifice 37 via passages through the member 39. The tube 1 is fed to and drawn from the head 4 by means 3 and 3a. The extruded sheathing is smoothed by a device, Fig. 4, which comprises a plurality of upper and lower radially adjusted laminar blades 44, 43 provided with rounded smoothing edges, within a casing 31 into which controlled temperature fluid is admitted to function as a lubricant and as a fluid bearing for the pipe, the initial blades 44, 43 being sprayed with liquid from a ring nozzle 45. The tube is then cooled in two stages 11, 12, the latter using coolant of lower temperature and intermediate which is located a fluid bearing 33, Fig. 6, wherein the sheathed pipe is supported between opposed fluid jets which may be assisted by a ring nozzle 46 at the entry thereto. The cooled sheathed tube is thereafter supported on rollers 32 and passes through a device 35, 36 which detects a connector (1a), Fig. 8 (not shown), between consecutive coils and, after a delay, actuates a saw 34 which travels with the coated tube to cut through the connector.
Patent GB-1336628-A (GB)
Title: Feed arrangement for hot pilgrim rolling mills
IPC: B21B21/04
Filed: 1971-12-14
Abstract: 1336628 Pilger rolling mills MANNESMANN-MEER AG 14 Dec 1971 [14 Dec 1970] 58108/71 Heading B3M A feed arrangement for a hot pilger rolling mill comprises two carriages 2 and 4 which are slidably mounted on a bed 1 and are interconnected by a motor-driven threaded spindle 5. At the beginning of a rolling process, the carriages are positioned remote from the mill rolls (Fig. 1), and the carriage 2 is charged with a mandrel and bloom. The carriage 2 (and hence the carriage 4) are moved by hydraulic cylinders 11 towards the rolls, and the carriage 4 is locked to the bed by transversely movable locking pins 10 (Fig. 4) Further feeding movement of the bloom is controlled by the spindle 5 which is intermittently rotated by a motor (Fig. 3, in plan) through gearing 7. After the bloom has been rolled and the carriage 4 unlocked, hydraulic cylinders 12 return the carriages to their initial positions. The carriage 4 can be of elongated shape (Figs. 5a to 7, not shown) so that it embraces the carriage 2.
Patent GB-587727-A (GB)
Abstract: 587,727. Joint - making packing. PATELHOLD PATENTVERWERTUNGS- & ELECTRO-HOLDING AKT.-GES. Jan. 10, 1945, No. 863. Convention date, Nov. 25, 1943. [Class 122 (iii)] [Also in Group XL] A joint in a demountable electric discharge device comprises an annular closed sheet metal, for example steel ring filled with an inert gas preferably nitrogen under pressure. The jointing ring d is clamped between flanges e, f by screws m. The flanges are soldered or welded to metal rings h, i secured to the envelope portions a, b.
Patent GB-1453037-A (GB)
Title: Mechanisms for operating movable bodies
IPC: E05F15/10
Filed: 1973-12-20
Abstract: 1453037 Door raising mechanism CRAWFORD DOOR EUROPEAN CO AB 20 Dec 1973 [3 Oct 1973] 59131/73 Heading E2M [Also in Division H2] A door raising mechanism comprises a motor 3 which operates, via drive band 7, clutch disc 10, a chain 18 and a door drive chain 31, and includes a device 15 which acts in response to the revolutions of a shaft 9 to actuate a magnetic brake 16 when the revolutions go outside a predetermined range. A belt pulley 8 rotatable on shaft 9 is pressed by spring 11 against clutch disc 10 and acts as a safety mechanism to prevent damage to the motor. A mechanism comprising an operating arm 39, a spring biassed rod 23 and a coupling 22 can isolate drive gear 19 from shaft 20 to allow manual operation of the door. When the manual position is selected a switch 38 operates to isolate the motor. In addition to door drive chain 31, shaft 20 drives chain 33 which rotates a threaded spindle on which dogs 36 move to actuate a limit switch 37 in the upper and lower positions of the door. The magnetic brake is operated by device 15 should the shaft 9 increase in speed above a predetermined level due to a fault in the mechanism, or decrease in speed by reason of the door striking an obstacle. The brake can be operated manually.
Patent GB-591463-A (GB)
IPC: E03C1/04
Abstract: 591,463. Bath supply fittings. PEGLERS, Ltd., and EMBERTON, A. E. Oct. 20, 1944, No. 20356. [Class 26] [Also in Group XXIX] A water supply fitting comprises a hot water tap 10 and a cold water tap 11 with a common delivery spout 28. The cold water from the tap 11 is conveyed to the spout 28 through a tubular member 33 to a point in advance of the hot water so that a certain amount of suction on the hot water supply is created. The fitting is provided with an attached panel 15 for closing the opening in the wall or cover of a plumbing duct within which the fitting is arranged, this panel being secured by screws to eye-lugs 12, 13, integral with the bodies of the taps.
Patent GB-1365688-A (GB)
Title: Method for reducing coarsely granulated iron ores by means of a high temperature fluidized bed
Inventor: TAJIMA OSAMU
IPC: B01J8/24
Filed: 1971-12-21
Abstract: 1365688 Reducing iron ore NIPPON KOKAN K K and D KUNII 21 Dec 1971 [26 Dec 1970] 59494/71 Heading C7D Sponge iron is produced by granulating or crushing iron oxide-bearing material to grains having an average diameter of at least 3 mm, feeding the grains to a fluidized bed having a temperature of 900‹C-1200‹C and passing a reducing gas therethrough. The oxide material may be pre-heated before entering the reduction zone and the fluidized bed may be provided by a multi-stage apparatus. The reducing gas may be a reacted mixture of petroleum and air.
Patent GB-1361000-A (GB)
Title: Target for camera tubes and camera tubes utilising such targets
IPC: H01J29/45
Filed: 1971-12-29
Abstract: 1361000 Image pick-up tubes; semi-conductor devices THOMSON-CSF 29 Dec 1971 [30 Dec 1970] 60548/71 Headings H1D and H1K The target of an image pick-up tube comprises a compensated semi-conductor substrate (that is to say, one containing not more than 10<SP>12</SP>/cm.<SP>3</SP> N-type free charge carriers) with a transparent conductive layer on one side to provide an output connection and a mosaic of metal dots on the other side forming Schottky diodes which are scanned by the electron beam. The metal should have a high work function (i.e. greater than 4.7 volts) and the free charge carrier density should be sufficiently low for the space charge zone to extend across the thickness of the substrate, either by using material containing a very small impurity fraction or by compensating for the impurities by introducing impurities of the opposite sign.. In one example a single crystal of gallium arsenide having an impurity density of 10<SP>12</SP>/cm<SP>3</SP> is polished and scoured with sulphuric acid. The crystal is secured to a glass window by a transparent conductive film of tin oxide, and is chemically reduced to a thickness of about 20 microns, and gold is evaporated on to the free surface through a nickel grid having 80 meshes/mm. to a thickness of 1000Š.
Patent GB-1263900-A (GB)
Title: Game apparatus
IPC: A63H13/20
Filed: 1970-12-31
Abstract: 1,263,900. Indoor game apparatus. M. I. GLASS [trading as MARVIN GLASS & ASSOCIATES], 31 Dec., 1970 [19 Jan., 1970], No. 62011/70. Heading A6H. Apparatus for playing a game comprises a frame 10 in the form of arms 22 radiating outwardly from a central hub 16 and mounted for rotation in a base member 12, a lever catch member 32 being disposed adjacent the outer periphery of the frame and being movable by a player from an inoperative position to a "catch" position in an attempt to catch any or selected ones of the finger-like portions 24 at the ends of the arms. Character members 28 are removably mounted on the arms to provide means for scoring.
Patent GB-649274-A (GB)
Abstract: 649,274. Supply systems for discharge lamps. TURNER ELECTRICAL INSTRUMENTS, Ltd., E. Feb. 3, 1948, No. 3153. [Class 38 (iv)] Pulses of short duration are applied to a discharge lamp by the discharge of two series connected electrolytic condensers charged at a higher voltage through a path containing resistance which absorbs most of the excess voltage once the desired discharge voltage of the condensers has been attained. As shown, the network of rectifiers 3-6 and condensers 7, 8 gives an output to the condensers 9, 10 of the order of 1280 volts with a 230 volt input at terminals 1, 2 and the condensers 9, 10 discharge to the photographic lamp 18 at about 1000 volts, their common connection being connected to resistances 12-14, the discharge may be initiated by discharging condenser 21 through transformer 23, 24 when switch 22 is closed, the transformer secondary being connected to a triggering electrode 19. Specification 367,785 is referred to.
Patent GB-708356-A (GB)
Abstract: 708,356. Accounting-machines. UNDERWOOD CORPORATION. Oct. 16, 1951 [Dec. 13, 1950], Neo. 24129151. Class 106 (1) An adapter unit placed between typewriter and computing-base sections of an accounting machine has power means for transmitting key action of the typewriter to amount index ing means in the computing base. The power means also operates the typewriter, under the control of the computing section, in total-printing operations. The adapter unit is indicated at A, and the main components of the typewriter and computing base at T and C. The frame 48 of the adapter unit is provided with pins 98 fitting sockets 96 replacing the usual feet of the typewriter. The numeral keys 11 of the typewriter engage type-lever actuators 17 with a motordriven snatch roller 20. Pivoted members 86 fitted into the base of the typewriter couple the keys to the mechanism of the adapter unit which comprises a similar set of actuators 69 engageable with a motor-driven snatch roller 59. Ears 77 on the actuators are normally engaged by hooks 76 pivoted to levers 75 rockable on a shaft 56, each lever 75 extending under a tab 89 on the corresponding coupling member 86 whereby depression of a numeral key 11 engages the corresponding actuator 69 with the snatch roller. The actuators 69 are connected by means of the bell-cranks 63 and pivotally attached pendants 64 with the indexing mechanism of the base section C, this mechanism comprising a set of blades 42 secured to parallel rock shafts 65 having crank-arms engaged by the pendants 64. As successive digits of a number are typed, the corresponding actuators 69 are engaged and driven by the snatch roller 59 successively to lower the corresponding blades 42. At the same time, ordinal differential bars 37 are successively advanced to register their index pins 40 with the blades 42 so that the successive digits are indexed by projection of a corresponding pin from each bar 37. A universal bar 43 then advances the bars 37 differentially by engagement with the projected pins to enter the number into the totalizer 35. In total-printing operations, feelers 45 are advanced to contact spiral sets of digit stops on the totalizer wheels 35. The feelers are then cammed upwardly in succession by forward movement of the bars 37 and, through a set of blades 47, close the appropriate ones of a set of digital contacts 100 wired to solenoids 103. The armature of each solenoid is adapted to rock the corresponding lever 75, so engaging the actuator 69 with the snatch roller 59, whereupon a roller 90 on an extension of the pendant 64 actuates the corresponding coupling member 86 and numeral key 11. The typewriter keys 11 are thus operated to type the total as the feelers 45 are successively lifted by the bars 37. Specification 542,354 is referred to.
Patent GB-2000236-A (GB)
Title: Hydraulic master cylinder
IPC: B60T11/20
Filed: 1978-06-07
Abstract: The invention relates to two piston (e.g. tandem) master cylinders for use in vehicle hydraulic braking systems. Whilst pressure is building up in the primary chamber 115 for applying one set of brakes, pressure in the secondary chamber 121 is prevented from increasing by virtue of a control piston 125 trapping hydraulic fluid in a control chamber 139. Valve means including a valve member 143, washer 144 and plunger 146 control pressure in the control chamber so that when a predetermined pressure in the primary chamber is reached the control chamber pressure starts to reduce and eventually becomes equal to the secondary chamber pressure. The master cylinder is for use in a split system having drum brakes connected to the primary chamber and disc brakes connected to the secondary chamber. Delaying the build up of secondary chamber pressure allows the effect of the usual drum brake pull-off springs to be overcome without causing undue wear of the disc brakes. <IMAGE>
Patent GB-2016816-A (GB)
Title: Laminations for a magnetic core
IPC: H01F27/245
Filed: 1978-10-02
Abstract: A layer of laminations for a shell- type transformer core comprises an E lamination providing three legs 1, 2, 3 and a yoke 5. and an I lamination providing a yoke 4, the width c1 of the yoke 5 being greater than the width c2 of the yoke 4. The width b of the outer legs is greater than half the width f of the middle leg, and the sum c1 + c2 is greater than f. In the stacked core the E and I laminations may be in respective stacks, or alternate layers may be reversed (Figs. 2 and 3 not shown). The laminations may be secured by cementing, welding, or clamping. The arrangement permits nearly wasteless stamping. <IMAGE>