baber/WOPTO huggingface dataset:
Patent GB-924397-A (GB)
Title: Magnetic device for use in magnetic memory
IPC: G11C19/08
Filed: 1960-10-26
Abstract: 924,397. Magnetic storage devices. HUGHES AIRCRAFT CO. Oct. 26, 1960 [Nov. 2, 1959], No. 36818/60. Class 38 (2). [Also in Groups XIX and XXXIX] In a bi-stable magnetic film member 10 (Fig. 4) having an initial stable remanent magnetism along an easy axis, an area 18 has its direction of magnetization reversed and is of such a size that the reversed magnetic state remains stable when the coercive force producing it is removed, the stable area 18 being extended to include the area 20, similarly magnetized by a current in conductor 14 (or shortened to exclude area 20 if it is formed as an oppositely magnetized region inside area 18), by making the distance between the edges of areas 18 and 20 so short that the residual magnetism therein switches during magnetization of these areas due to the biasing action of the magnetism in areas 18 and 20 and its own self-demagnetizing tendencies. A current passing at the same time through conductor 16 produces a reversely magnetized area 22 but this is too small to be stable and reverts to the initial direction of remanent magnetism when the current ceases. Shift register.-Fig. 8 shows the construction, and Figs. 9a to 9f the operation, of a shift register using devices of the above described kind. In these figures, 32 is an input conducting layer which is wide enough to produce, when energized, a stable, reversely magnetized area in magnetic film member 48 while the conducting members 36 and 38 are so narrow that the areas of film 48, which they switch when energized, are unstable. The distance between adjacent conductor members such as 36a, 38a is also less than the width required for a stable area. To record a binary " one " in magnetic member 48 which has a direction of residual magnetism to the right (Fig. 9a) a current is passed through 32 in a direction to switch an adjacent area to the opposite direction of magnetization producing the stable condition shown in Fig. 9b. A current in a first direction through conductor 38 switches a part 35 (Fig. 9c) of the stable area 33, the part 31 to the left of part 35 being too small for stability and therefore switching also. At the same time, the direction of magnetization in part 43 of the magnetic member 48 is switched to correspond with that of area 33 and, since the intervening part 41 is too small for stability, the direction of magnetism therein switches also. The stable area has thus moved to the right to include parts 41 and 43 and exclude parts 31 and 35. Successive currents in conductors 36 and 38 cause the stable magnetized area to move to the positions shown until it passes under the output winding 44, 52 (Fig. 9f) and produces an output pulse. A series of stable areas may be created and caused to move by a succession of pulses representing binary numbers. Fig. 10 shows a circuit for supplying conductors 36, 38 with a cycle of two opposite current pulses each comprising " and " gates 86, 88, 90, 92 fed from a clock pulse generator 68 through flip-flops 70, 80. Specification 857,289 is referred to.
Patent GB-898508-A (GB)
Title: Improvements in tuned circuits suitable for use in superheterodyne receivers
IPC: H03L1/00
Filed: 1959-10-30
Abstract: 898,508. Radio receiving circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 30, 1959 [Nov. 3, 1958], No. 36910/59. Class 40(5). [Also in Group XL(b)]. A tuned circuit for a superheterodyne receiver comprises a plurality of switchselected inductors for tuning to a. plurality of wavebands, connected in series with another inductor the inductance of which is high compared with that of the switch-selected inductors for tuning in the wavebands of highest frequency. As applied to the local oscillator of a television receiver the switchable inductors, such as 4, are connected in series with inductor 3, the combination being resonated by condensers 2, 5-8 of which 2 is the valve capacity 5 and 8 respectively parallel and series padding condensers of the temperaturecompensating type, 6 an adjustable trimming condenser and 7 a variable fine-tuning condenser. Inductor 3 is preferably air-cored and adjustable for trimming whereas inductors 4 may be of the pointed circuit type. The arrangement is such that on the higher frequency bands the inductance of inductor 3 predominates, reducing both the absolute value of the drift due to instability of the inductors 4 and also the relative frequency coverage of the fine tuning condenser 7. The arrangement may also be applied to a high-frequency bandpass filter (Fig. 2, not shown).
Patent GB-980826-A (GB)
Title: Improvements relating to brackets
Inventor: NEALE DAVID WARWICK
IPC: B60Q1/18
Filed: 1962-10-02
Abstract: 980,826. Clamps. RAYDYOT Ltd. Oct. 2, 1963 [Oct. 2, 1962], No. 37210/62. Heading E2B. [Also in Division F4] A bracket 10 for mounting a vehicle accessory 5 on a vehicle bumper 21 comprises a first part 9 for fixing to the accessory and a second part 13 pivoted to the first part and comprising a substantially rigid jaw of U-section, and a member 20 for passage through one of the limbs 14 of the jaw to clamp the bumper 21 against the other jaw limb 15. As shown, the first part 9 is hinged about a bolt 18 which also passes through aligned holes in a pair of lugs 16 projecting from the limb 14.
Patent GB-1125250-A (GB)
Title: Improvements in or relating to lampshades
IPC: F21V1/00
Filed: 1967-08-14
Abstract: 1,125,250. Lampshades. D. E. BUCHANAN, [trading as SASHA PRODUCTS]. 14 Aug., 1967, No. 37303/67. Heading F4R. [Also in Division B5] A lampshade is formed from a strip of thermoplastics material 2 bent round with the ends 5, 6 abutting and sealed along the join with a strip of thermoplastics material 7. The shade is then bound to two metal rings 8, 9 by decorative binding tape 10, 11, the upper ring 8 being made in one with a mounting ring 12 for supporting it on an electric light bulb. The outer surface of the shade may be covered with woven fabric 4 such as silk or artificial silk, or with unwoven fabric. The seal may be effected by application of high frequency electric current, with or without external pressure.
Patent GB-971578-A (GB)
Title: Improvements in wrapping machinery
Inventor: WILSON PETER GORDON
IPC: B65B51/10
Filed: 1962-10-02
Abstract: 971,578. Seaming non-metallic sheet material. FORGROVE MACHINERY CO. Ltd. Sept. 17, 1963 [Oct. 2, 1962], No. 37372/62. Heading B5K. [Also in Division B8] A heat sealing member, for sealing wrapped packages having uneven surfaces, comprises a heated rigid block 11, a sheet 13 of flexible material attached to the block 11 and extending over a face of the block and means for forcing air under pressure into the space 18 between the sheet 13 and the block 11 and for exhausting air from this space. The block 11 is made of metal and contains a heater 12. The sheet 13, preferably of glass fibre impregnated with silicone rubber, is attached to the block 11 by side plates (not shown) and end plates 16. The space 18 is connected by a duct 19 and a pipe 20 to an air cylinder 21 having a piston 22 actuated by a rod 23. In use, the sheet 13 is first pulled down by suction to contact the heated block 11 and air is then pumped under the sheet 13 to lift it from the block and contact the package to be sealed. The heater may be reciprocable towards and away from a package traversed past it by an intermittently moving conveyer, Figs 5-8 (not shown), or may remain stationary. Alternatively, packages 24 are continuously fed by a conveyer 25 synchronized to move with a conveyer 27 on which the sealing members 10 are mounted.
Patent GB-448518-A (GB)
Title: Improvements in and relating to couplings for railway and other carriages and wagons
IPC: B61F5/16
Filed: 1934-12-31
Abstract: 448,518. Non-automatic couplings for vehicles. DEVLIN, S. R., 9, Buller Street, Derby. Dec. 31, 1934, No. 37417. [Class 103 (v)] In an articulated railway &c. vehicle of the kind in which the ends of two adjacent vehicles are supported upon a common bogie the centre pivot or coupling comprises two half-cup shaped members 10, 10<1>, one on each vehicle, provided with substantially semicircular recesses 21, 21<1> and upstanding lugs 11, 11<1>, over which is placed a locking- ring 16 adapted to couple the vehicles together. The under surfaces of the members 10, 101 are of part spherical shape and accommodated in a corresponding concavity in a foot-step 19 carried by the bolster 18, an antifriction or wear plate 19<1> preferably being interposed. In order to prevent displacement of the ring 16, a bolt 15 is passed through the ring, recessed parts of the members 10, 10<1>. footstep 19, and bolster 18, and is secured at its lower end by a nut 25 and pin 29. A cover-plate 30 with leather dust-excluders attached to its sides may be fitted over the pivot, while oil passages 20 may be formed in the members 10, 101 for lubricating the bearing.
Patent GB-1291124-A (GB)
Title: Improvements relating to flexible skirt assemblies for air cushion vehicles
Inventor: WHEELER RAYMOND LESLIE
IPC: B60V1/16
Filed: 1969-07-25
Abstract: 1291124 Flexible skirt for air cushion vehicle BRITISH HOVERCRAFT CORP Ltd 24 July 1970 [25 July 1969] 37438/69 Heading B7K A segment for a flexible skirt of an aircushion vehicle is constructed from a single layer of flexible impermeable material, and that part which, in operation, is adjacent the surface over which the vehicle is travelling, has one or more additional discrete sheets of material. The segment may be formed from two pieces of material 17 and 18, joined along line 19, for example by riveting. One or more sheets of material 20 is then secured to the sheet 18 along line 21 by vulcanizing, stitching, stapling, riveting or bolting, as in Fig. 3 or in Figs. 4-7 (not shown). If the reinforced part of the segment becomes damaged the sheets 18 and 20 may be cut back to a semicircular line 26, Fig. 9, and one or more replacement sheets 27 sandwiched between the edges of the sheets 18 and 20 and secured in place. Alternatively the sheets or sheets 20 may be made replaceable by being secured to the sheet 18 by a heavy plastics sliding clasp fastener or by press-studs. The sheet(s) 20' may be of similar material to the remainder of the segment, or may be of metal, metallized fabric or plastics material, and may have at the lowest edge a strip of, for example, wood or metal. Segments may be attached either to rigid structure or to an upper flexible member which may be inflatable.
Patent GB-639934-A (GB)
Title: Improvements in and relating to variable speed gear of expanding pulley type
IPC: F16H9/16
Filed: 1948-01-19
Abstract: 639,934. Variable-speed gearing. HARTRIDGE, L. Jan. 19, 1948, No. 37441/46. [Class 80 (ii)] In a variable-speed gear of the type comprising four expanding V-pulleys, I on a driving shaft 1, II, III on a lay shaft 2, and IV on a driven shaft 3 the movable flanges 5, 6 of the pulleys II III being displaceable by a thrust member 12 between them, the input and output pulleys I, IV at least are of the type having radial sided slots 8 in the conical faces and have the outward movement of the movable flanges 4, 7 resisted by springs 10, 11. As shown, the pulleys II, III are also of the type having radial sided slots 8. Movement of thrust collar 12 is controlled by a lever 14 and screw and nut gearing 15, 16.
Patent GB-1164408-A (GB)
Title: Improvements in or relating to Tube Filling
Inventor: GORELIK ABRAM VLADIMIROVICH
IPC: H01J9/395
Filed: 1968-08-06
Abstract: 1,164,408. Lasers. A. V. GORELIK, B. P. MIRETSKY, E. P. OSTAPCHENKO, L. V. SOBOLEVA, L. I. KISELEVA and J. M. YAKOVLEV. 6 Aug., 1968, No. 37455/68. Heading H1C. A gas laser tube is aged artificially by filling an evacuated tube with gas, establishing an electrical discharge in the gas, and compensating for any pressure reduction in the tube caused by the electrical discharge by supplementing the gas with fresh gas until the required operating pressure is obtained. During the electrical discharge phase the tube is located in a resonator. Preferably the electrical discharge is produced by a radio frequency field the distribution of which is varied periodically by moving electrodes. A single gas filling may be used or a mixture of gases such as He-Ne. In the latter case one gas, e.g. Ne, is introduced into the tube first, followed by the second gas. After electrical discharge has taken place, the gas operating pressure is adjusted to the required value by adding an additional volume of the second gas.
Patent GB-1235312-A (GB)
Title: Installation for flame cutting metal slabs to predetermined lengths
Inventor: LITVINOV ANATOLY IVANOVICH
IPC: B23K7/00
Filed: 1968-08-06
Abstract: 1,235,312. Cutting by fusion. URALSKY ZAVOD TYAZHELOGO MASHINOSTROENIA. 6 Aug., 1968, No. 37457/68. Heading B3V. An apparatus for cutting an ingot 12 into predetermined lengths 12<SP>1</SP> comprises a set of flame cutting machines 1 each mounted on rails 2 and driven along the rails by an endless chain 7. The drive is transmitted from an electric motor 3 through a gear-box and the chain 7 to idler sprockets 9 which can be clamped by jaws (10), Fig. 2 (not shown). A brake 11 is provided on each machine to hold the machine in position after adjustment. Each machine has a pair of flame torches 13. In operation all but one of the clamps is disengaged so that one machine moves with the chain for adjustment. Similarly each of the machines is moved in turn, but all may be moved together.
Patent GB-1451867-A (GB)
Title: Accelerator pedal biasing arrangement in a vehicle
IPC: B60K26/04
Filed: 1974-08-28
Abstract: 1451867 Control linkages REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 28 Aug 1974 [20 Sept 1973] 37542/74 Heading F1B [Also in Division B7] Accelerator pedal biasing arrangement including a cable 6 indirectly connected via a resilient member 5 to an accelerator pedal 3, the cable being wound on a drum 8 coupled to a reversible motor 7, and control means 12 for causing the motor to rotate respectively in one of two directions when an operating parameter of the vehicle respectively exceeds or falls below a predetermined value, rotation of the drum in one direction causing the cable to be wound on to the drum so that, via the resilient means 5, the cable biases the pedal against depression. As shown the pedal is fully biased against depression, the spring 5 pivoting a lever 1 about point 1a to bias a rod 2 and pedal 3 rearwardly, and a rod 10 on the drum opens a contactor 11a to deactivate a relay 13a. If the operating parameter, e.g. the speed, of the vehicle drops below a given value a computer 12 shuts off a signal at output 12a and emits a signal at 12b. The signal travels via contactor 11b to relay 13b and causes contactor 15b to move and connect a motor terminal 17b to earth. The motor is then driven to slacken the cable 6, the slack being taken up by spring 9, thus reducing the bias force on the pedal. When rod 10 opens contactor 11b the signal from 12b is disconnected from 13b and contactor 15b breaks the earth connection and the motor is stopped. If the parameter now increases above the given value the signal at 12b ceases and a signal appears at 12a thus actuating relay 13a and causing the motor to be driven in reverse whereupon the cable is wound on to the drum and the bias against depression increased.
Patent GB-1154467-A (GB)
Title: Computer Unit for Obtaining the Logarithms of Binary Numbers
Inventor: COMBET MICHAEL
IPC: G06F7/556
Filed: 1966-08-22
Abstract: 1,154,467. Determination of approximate logarithms. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 22 Aug., 1966 [31 Aug., 1965], No. 37561/66. Heading G4A. A computer unit which determines the logarithm to a base of two of binary numbers N by using the approximation given whole number values of k and where o # x <1 by means of a shift register in which the value of x is formed by the repeated shift of N until the most significant digit is delivered by the register, the value k being obtained by counting of shift steps, is characterised in that the shift register is capable of cumulative adding and is connected to a correction system which adds various correction factors (constants and/or functions of x) to the value of x, dependent on the value of x and that for the purpose of establishing functions of x, a further shift register is provided. The preferred correction factors are as set out below: Correction = <SP>5</SP>/ 16 x when 0 # x < “ Correction = <SP>5</SP>/ 64  " “ # x < ¢ Correction = #x + <SP>3</SP>/ 128  " ¢ # x < ¥ Correction = “x " ¥ # x < 1 In the embodiment shown, the number N is fed under control of control unit 17 from an external source connected to terminal 11 into a sevenstage shift register 13, the shifting continuing until the most significant bit overflows into the first stage of a second seven-stage shift register 16. The bits remaining in register 13 then comprise the factor x. The factor k is determined using a counter 15 which is counted down step by step from the value 7, the counting effectively starting at the point at which the integral part of N is just loaded into the register 13. The particular correction to be applied is determined by outputs from the two most significant stages of register 13, which outputs are connected in the four possible normal and inverted combinations to AND-gates 18-21. Thus, when a timing pulse b is issued by control unit 17, one only of the gates 18-21 will be enabled and a corresponding one or ones of flipflops 22 set. These flip-flops are connected to further AND-gates, each of which is associated with a particular correction factor and each of which has a timing input from the control unit 17. Those AND-gates associated with functions of x have a third input connected to the most significant stage of a further shift register 14 which was fed with the same signals as register 13 (i.e. also contains x). The arrangement is such that, after the required function or functions of the most significant bit of x has or have been calculated and added into register 13, the register 13, 14 and 16 are stepped-on one position and the next bit of x dealt with. After the function of x corrections have been applied for all 7 bits in register 14, the amended value of x now located in register 16 has the constant corrections applied thereto.
Patent GB-1159519-A (GB)
Title: Improvements in and relating to business keyboard machines
IPC: B41J3/44
Filed: 1967-08-16
Abstract: 1,159,519. Typewriters &c. EICHNER ORGANISATION G.m.b.H. 16 Aug., 1967 [25 Aug., 1966], No. 37592/67. Heading B6F. [Also in Division B4] In a keyboard-operated machine such as a typewriter wherein each key 1 is releasably connected to a link 14 operating a control part of the machine, a member 7, 8 is provided, movement of which in one direction effects release of all the links from the keys and movement in an opposite direction causes re-engagement of all the links and keys. The upper end 14a of each link 14 engages a forked part 5 of a downward extension 25 of its key 1 which extension is movable by the key between flexible stops 3, 6 against the action of a spring 4. The links 14 pass through holes 9 in a plate 7 releasably attached by screws 10 to a member 8 pivoted at its lower end on pins 20. Anticlockwise movement of the member 8 causes disengagement of the link ends 14a from the parts 5, and reverse movement of the member causes re-engagement of the parts 14a, 5.
Patent GB-1476945-A (GB)
Title: Polyamides
IPC: C08G69/26
Filed: 1974-08-29
Abstract: 1476945 Polyamides PHILLIPS PETROLEUM CO 29 Aug 1974 [31 Aug 1973] 37808/74 Heading C3R A linear polyamide contains at least 80 wt. per cent of securing units where R is 5-methylnonamethylene, 2,4-dimethyloctamethylene or 2,4,6-trimethylheptamethylene, at least 50% being 5-methylnonamethylene, any remaining units being where R<SP>1</SP> is H or C 1-4  alkyl, R<SP>2</SP> is a divalent C 6-16  hydrocarbon radical R<SP>3</SP> is a divalent C 4-14  hydrocarbon radical, and if R<SP>1</SP> is H and R<SP>2</SP> is cyclic the group -NH-R<SP>2</SP>-NH is symmetrical about the axis through the NH groups, and contains less than 5 double bonds per 100 R groups, preferably less than 1 per 1000. The polyamides are useful for forming fibres or as moulding resins, for fibres the amount of plasticiser present, if any, is generally less than 2%. Examples illustrate the preparation of polymers from 1,4-cyclohexane dicarboxylio acid and a diamine mixture of about 89 wt. per per cent 5-methyl-nonamethylene and 11 % 2,4- dimethyloctamethylene diamines (I) without additives and (II) with acetic acid (M.W. modifier), manganese lactate (thermal stabilizer) and TiO 2  (delustrant). The polymers made with the specified diamine of the purity indicated by the low double bond content are stated to have low boiling water shrinking and good dyeability, crease recovery, wash wear properties and tenacity. Reference is made to Specification, 1,424,852 relating to similar terephthalamide polymers.
Patent GB-1024504-A (GB)
Title: Improvements in or relating to rotary piston engines
IPC: F02B53/00
Filed: 1962-10-05
Abstract: 1,024,504. Rotary-piston I.C. engines. A. CITROEN S.A. Oct. 5, 1962 [Oct. 7, 1961], No. 37832/62. Heading F1F. A rotary-piston I.C. engine of the trochoidal n and n+1 lobe type comprises a casing 5 having three lobes or cavities 7, each of which includes a combustion chamber 6 having a throat 8 and a spark-plug 9, fuel being supplied to each cavity through an injector 15. Gas inlet and outlet ports 10 for each cavity are situated in one or both of the end walls of the casing (Figs. 2, 3, 5, 6, not shown), lateralsealing rings 12 for the piston being lodged in grooves 12a (Fig. 3, not shown) which are formed in said walls radially outwards of said ports. The rings 12 are pressed against the piston by gases which enter the grooves 12a from the cavities 7. A ring 13 may be provided in each of said grooves to effect sealing of the ring 12 therein. Oil-sealing rings 14 are also lodged in grooves formed in the end walls of the casing, one of these rings being adjacent a stationary internally-toothed gear-wheel 4 which meshes with a pinion 3a at one end of a bearing member 3 fixed to the piston. Radial sealing strips or elements 11 are slidably lodged in grooves formed in the casing between the cavities 7, the strips being pressed against the piston by pushrods 11a which are biased by resilient means, e.g. springs or oil-pressure, situated externally of the casing.