baber/WOPTO huggingface dataset:
Patent GB-129101-A (GB)
Title: Improvements in or relating to the Metal Pots of Type Bar Making Machines.
Inventor: JEANS ALLAN EDGAR
IPC: B41B11/52
Filed: 1918-07-02
Abstract: 129,101. Jeans, A. E., and Hayes, P. T. July 2, 1918. Metal pots and pumps for type-bar-making machines. A stirrer for the molten metal is arranged on the plunger of the pump. As shown, the stirrer consists of a red or tube A which is secured to the plunger B and is formed with splayed perforated ends D.
Patent GB-1193821-A (GB)
Title: Improvements in or relating to Electrically Suppressed-Zero Measuring Arrangements
Inventor: LOMAX STANLEY
IPC: G01R15/00
Filed: 1966-03-14
Abstract: 1,193,821. Current and voltage measurement. RECORD ELECTRICAL CO. Ltd. June 5, 1967 [March 14, 1966], No.11023/66. Heading G1U. A suppressed-zero measuring arrangement consists of a bridge with Zener diodes ZD1 and ZD2 in opposite arms, and resistances R2 in the other arms. An input to be measured is applied across one diagonal and a transistor amplifier A across the other, the output from this being supplied to a meter 11 to provide the suppressed zero measurement. In the current measuring system of Fig. 1, a resistor Rs is connected across the source of current to be measured to provide a load for currents below the measuring threshold. A resistor R1 across the meter has a temperature co-efficient such as to provide compensation for variations in the amplifier output with temperature. It is shown in the Specification that the current suppression level depends on both the Zener voltages and the resistances in the circuit. By adjusting the resistors, the level can be altered. A voltage measuring system is formed by including a resistor in series with the source to be measured.
Patent GB-212150-A (GB)
Title: An improved adjustable spanner
IPC: B25B13/28
Filed: 1923-04-24
Abstract: 212,150. McGuigan, W. T. April 24, 1923. Pivoted-jaw wrenches.-A spanner of the kind having a fixed jaw 1 with a handle extension 3 and an adjustable pivoted jaw 2 is constructed with a spring 5 for maintaining the jaw 2 in its normal open position, the extent of the opening of the jaws being controlled by a link 4 which can be engaged in any one of the notches 1B - - 1E on the fixed jaw, and in one of a similar series of notches on the pivoted jaw.
Patent GB-957763-A (GB)
Title: Electrical switch mechanism
IPC: H01H73/30
Filed: 1962-03-23
Abstract: 957,763. Electrically tripped switches. SQUARE D CO. March 23, 1962 [June 9, 1961], No. 11137/62. Heading H2B. A protective switch comprises a housing formed from a plurality of sections 20, 21, 22, 23, one 23 of which houses a plunger operated, trip-free switch while the others each contain fusible current responsive devices 70 operatively coupled to one another and to the switch. The switch is reset by depressing plunger 25 so that an abutment 46 thereon forces a member 32 downwards (its pivot 34 sliding in a slot in the housing) until it is engaged by a latch 38. When the plunger is released the member 32 pivots away from 38 under the influence of a compression spring 44, and a projection 66 changing over a set of contacts 50a, 52, 50b. In the event of overload current flowing in the heater of any of the devices 70, a mass of solder melts to release a ratchet-wheel 72 allowing a pawl 74 to be rotated by a coiled torsion spring 80. Movement of any one of the pawls 74 causes a number of tripping members 86 to rotate, the one in section 22 adjacent to the switch disengaging the latch 38 by means of a projection 88 thereon. The tripping members 86 and thus the pawls 74 are restored during the resetting of the switch by a lug 94 on the lever 32. An opening 103 is provided such that the upper surface of lever 32 is visible when the switch is in the tripped position.
Patent GB-309910-A (GB)
Title: Improvements in or relating to gyroscope compasses
IPC: G01C19/38
Filed: 1929-04-10
Abstract: 309,910. Naamlooze Vennootschap Nederlandsche Technische Handel Maatschappij Giro, (Assignees of Anschutz & Co.). April 17, 1928, [Convention date]. Gyroscopic compasses.-In a compass such as is described in Specification 10440/11 in which a number of gyroscopes are employed, the gyroscopes are mounted with freedom to turn about vertical axes 4, 5, and means are provided whereby the angle a, Fig. 1, between the axes of the gyroscope is caused to vary automatically with changes of latitude for the purpose of maintaining constant the oscillation period of the compass over a wide range of latitude. To provide the variation in the angle a and the gyroscopes 14, 15, Fig. 2, may be controlled about their vertical axes by light springs 10 and 11 so that their axes assume equilibrium positions depending on the spring forces and on the effect, which varies with the latitude, of the earth's rotation. The adjustment is preferably such that the angle a is 180‹ when the gyroscopes are not rotating and is reduced to 126.5‹ when the gyroscopes are rotating at the equator. The spring forces may be provided by the torsion of wires by which the gyroscopes are suspended. The oscillation period is arranged to be about 84 minutes. Specification 108,677 also is referred to.
Patent GB-1186713-A (GB)
Title: Photographic Emulsions
Inventor: ILLINGSWORTH BERNARD DAVID
IPC: G03C1/485
Filed: 1967-03-10
Abstract: 1,186,713. Direct positive emulsions. EASTMAN KODAK CO. March 10, 1967 [March 11, 1966; Jan.17, 1967], No.11293/67. Heading G2C. Direct positive emulsions comprising fogged silver halide grains are characterised in that (i) an electron acceptor is absorbed on the surface of the grains and (ii) the grains are fogged to such an extent that after development they satisfy a specified chemical bleach test. The fogging agents, electron acceptors and emulsions may be of the type described in Specifications 1,186,711 and 1,186,712.
Patent GB-746437-A (GB)
Title: Pyrimidine derivatives and process for the manufacture thereof
Filed: 1954-04-20
Abstract: The invention comprises 3-phenyl-2H-pyrido[1,2-a] - pyrimidine - 2,4(3H) - dione of the formula <FORM:0746437/IV(a)/1> and salts thereof, and the preparation thereof by heating a di-(lower alkyl) ester of alpha-phenyl malonic acid with 2-aminopyridine.  The lower alkyl groups in the reactant each contain from 1 to 6 carbon atoms. The salts are formed by reacting the pyrimidine with an inorganic or organic base, e.g. sodium hydroxide, tetramethylammonium hydroxide or ethylamine. The reaction to form the substituted pyrimidine may be carried with or without an inert reaction solvent such as diphenyl ether. In the examples the compound of the above general formula is prepared and the sodium and ethylamine salts thereof.
Patent GB-606950-A (GB)
Title: Improvements relating to attachments for photographic cameras
IPC: G03B15/04
Filed: 1946-04-15
Abstract: 606,950. Photographic cameras combined with flashlights. MONTGOMERY, G. B., and CHURCHILL, J. H. April 15, 1946, No. 11446. [Class 98 (i)] A flashlight synchroniser attachment includes a casing 1 adapted for attachment as by a foot 2 engaging in a channel extending across the camera from back to front, a spring- urged conical cam 3 fixed to a shaft 5 journalled in the casing and protruding from it, a spring contact-arm 6 engageable with the cam, an insulated contact 7 engageable with the contactarm and connected to an insulated metallic distributor plate 8, a bell-crank lever 9 pivoted at or near its centre, one end of said lever being engageable with the cam and the other end 10 with the camera shutter release, and a spring-actuated plunger 12 adapted to engage the shaft 5 and hold it immovable when the cam has been moved into a " set " position, actuation of the plunger releasing the shaft and allowing the cam to cause closing of the flashlight circuit and operation of the shutter release. When the shaft 5 is pressed at its end nearer the groove 5A, it slides over the outwardly spring-pressed phmger 12 until the groove is adjacent the plunger when a shoulder on the plunger passes into the groove locking the shaft against axial movement. Further movement of the plunger beneath the shaft 5 is prevented by a suitably disposed stop. The fixed contact 7 is a screw adjustable relatively to the contact 6 and has a socket 7A for a plug connected to a source of current, the other pole of which is connected to a socket 17 on the plate 8. Lamps may be connected between sockets on the casing and further sockets on the plate 8. The bell-crank lever arm 10 carries an adjustable screw 11.
Patent GB-759303-A (GB)
Title: Control for synchronizing the operation of apparatus using strip record material
Inventor: DRESSER WILLIS ROBERT
IPC: G03B31/00
Filed: 1954-04-21
Abstract: 759,303. Sound and picture apparatus. VITARAMA CORPORATION. April 21, 1954, No. 11512/54. Class 40(2) [Also in Groups XX, XXXV and XL(b)] A number of machines for feeding record material for sound or kinematograph pictures are driven by separate motors all but one of which drive through differential gears into which also drive servomotors arranged to remove misalignment between a signal transmitter on the one machine and receivers on each of the others, adjustable means being provided between each receiver and the transmitter to vary their phase relationship. In the apparatus shown kinematograph projectors 11, 12, 13 project juxtaposed images on a screen 10 to the accompaniment of sound derived, preferably from multiple sound tracks, in the reproducer 21. The latter is driven by a motor 33 and drives a selsyn transmitter 36 the stator of which is connected to that of a receiver 50 at each of the projectors 11, 12, 13. Each projector is driven by a motor 43 through a differential 44 into which is also fed the drive from a servomotor 47 driven from a phase-sensitive amplifier 56 fed from the rotor of the receiver 50 so that the servomotor maintains the receiver 50 in synchronism with the transmitter 36. The connection between each receiver 50 and the transmitter 36 is made through a differential selsyn 66, rotatable by hand through worm gearing 70, 72, so that any one of the projectors may be advanced or retarded relatively to the others.
Patent GB-1521851-A (GB)
Title: Flat-bed knitting machine needle bed shift device
IPC: D04B7/04
Filed: 1976-03-22
Abstract: 1521851 Knitting machines UNIVERSAL MASCHINENFABRIK DR RUDOLF SCHIEBER KG 22 March 1976 [26 March 1975] 11522/76 Heading D1C A flat bed knitting machine has a shift device for moving a needle bed longitudinally comprising a plate 2 whose periphery is movable at right angles to the shift direction and carries a series of eccentrically mounted bosses 2 whose positions are adjustable and which engage in a guide channel on the needle bed to shift it the required amount. Plate 2 is shift the needle bed e.g. half a needle space. mounted on shaft 1 and is stepped on to engage the bosses between members 10 to Fine adjustment of the bosses is carried out by rotating them about the slightly eccentric holes through which the screws pass to secure them to facets of the periphery of plate 2.
Patent GB-1110685-A (GB)
Title: Projectile fuse
IPC: F42C15/18
Filed: 1966-03-16
Abstract: 1,110,685. Projectile fuze. INDUSTRIAL HOLDING ESTABLISHMENT. 16 March, 1966 [18 March, 1965], No. 11608/66. Heading F3A. The percussion fuze has an instantaneous primer 30 and a delay-action primer 31 carried in a holder barrel 11. This barrel is rotatable from a safety position, Fig. 3, by a pin 28 carried by a rotatable hood 2, to bring one or other primer in line with the striker 9. By a cam on the hood 2, this setting simultaneously tensions a driving spring 39 for a movable rack 12 which holds an additional primer (41), Fig. 8 (not shown). The setting also releases detent balls 14, 15 from a rod 17 {which on firing sets back against a spring 21 and is locked by a catch 35. The rod disengages from a pivoted spring-biased retaining bolt 10 for the striker but this bolt is still held by a detent ball 27 backed by a pin 27. A gap 37 in the rod 17 has now released a balance bar 37 connected through an escapement and gearing, Figs. 6 & 7 (not shown), with the rack 12 which moves to release the pin 27 and thence bolt 10 and striker 9. The additional primer (41) moves to the centre and the fuze is fully armed. The chain of primers is completed by a relay primer 53 adjacent the detonator 54. Should the rack 12 be moved prematurely, e.g. by sabotage, a sprung pin 58 thereon enters a hole 61 in the hood 2 and the fuze cannot be set for firing. In a modification, Fig. 15 (not shown) pin 58 is replaced by a pin (62) fast with the rack 12, and additional holes (63, 64) are provided in the hood 2 corresponding to the instantaneous and delay settings, whereby the parts are immobilized in the armed position.
Patent GB-437632-A (GB)
Title: Improvements in articulated rail cars
IPC: B61D3/10
Filed: 1935-04-15
Abstract: 437,632. Railway-vehicle couplings and undercarriages. BUDD MANUFACTURING CO., E. G., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Dean, A. G. ; c /o Budd Manufacturing Co. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) April 15, 1935, No. 11623. Convention date, April 13, 1934. [Classes 103 (v) and 103 (vi)] In an articulated railway vehicle, in order to relieve the end sills from taking substantially the whole of the stresses between adjoining cars, the main portion of each end sill is formed as a casting 14, 15, Fig. 1, having a downwardly and forwardly projecting arm 12, 13 that forms a part of the common centre pivot, and also having vertical arms 25, Fig. 2, which are rigidly secured to vertical beams 29 extending to the roof structure 36, the end sill and beams being further rigidily secured to the other frame members of the end wall so as to distribute stresses over the entire end wall and roof. Preferably the beams 29 are made of light gauge sheet metal, such as stainless steel, formed into hollow or box section parts which, as shown in Fig. 6, are telescoped over the arms 25 of a general I- section and are riveted thereto at 30. The casting also has a pair of inwardly extending arms 20, 21. Fig. 3, which are riveted to the two longitudinally extending centre sills 16, 17, the latter reaching a relatively short distance inwards from the car end and being tied to the upper ends of deep transverse beams 18, 19, Fig. 1. Additional members that are preferably formed integral with the end castings are projecting side bearings 27 and upwardly extending brackets 28 beyond the latter. The end wall framing comprises inner vertical beams 33 secured to the brackets 28, and interconnecting a series of transverse beams 34<1>, outer vertical beams 33, and a series of diagonal bracing members 34. The joint between the end wall and roof is strengthened by means of gussets 43, so that the end sills, end walls and roofs are rigidly tied together for resisting stresses communicated between adjacent cars.
Patent GB-684217-A (GB)
Title: Improvements in or relating to frequency and phase stabilising circuit arrangements
IPC: F01L7/08
Filed: 1951-05-18
Abstract: 684,217. Automatic frequency and phase control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 18, 1951 [May 22, 1950], No. 11666/51. Class 38 (iv). Relates to A.F.C. systems of the kind in which a wave source 1, 2 is controlled in frequency and phase by a reference source 9 by mixing the two waves at 8 and feeding the resultant through a filter 10, 11 to the grid of a frequency control tube 5; and consists in extending the " catching " zone by utilizing the voltage in the anode circuit of the control tube 5 to strike a neon tube 12 which creates a sweep voltage for application to the grid of the control tube. The control tube operates as a thermionic reactance across the tuned circuit 2 of the oscillator 1. If the frequency of the source 1 is beyond the catching range, excess current through the valve 5 raises the voltage across the anode resistor 15. This causes the neon tube to strike and creates a saw-tooth voltage across the network 13, 14 which is applied to the grid of the control tube 5, thus reducing the anode current and allowing the voltage across the network 15, 16 to fall until the tube 12 is extinguished. If the frequency sweep thus applied to the oscillator fails to produce locking, the cycle is repeated. In a modified circuit, Figs. 2 and 3 (not shown), a single pentode valve operates both as a wave source and as a frequency control, the neon tube being connected between the anode and grid circuits in such manner that it strikes when the anode current is at a minimum.
Patent GB-875710-A (GB)
Title: Magnetic susceptibility measuring instrument
Inventor: HILSUM CYRIL
IPC: G01R33/16
Filed: 1958-04-14
Abstract: 875,710. Magnetic tests. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 14, 1959 [April 14, 1958], No. 11756/58. Class 37. The magnetic susceptibility of a specimen is determined by inserting it in an air gap of a magnetic network which is energized with a magnetic flux source so that two points in the network have equal magnetic potential, the two points are joined by a magnetic link which contains a sensitive detector of magnetic flux. The magnetic susceptibility meter shown in Fig. 1 comprises a permanent magnet ABC in conjunction with which a soft iron bar D, E, F forms air gaps X, Y. The reluctance of gap Y is adjusted until no flux passes through the flux detector G, for example by moving a ferromagnetic body in the vicinity of gap Y or by altering the reluctance of the arm D, E by withdrawing or inserting iron screws. The specimen to be measured is then inserted into gap X so that flux passes through the detector G which measures the change. The detector may be an indium antimonide Hall effect element driven by a transistor oscillator with the Hall voltage amplified by a transistor amplifier. In the modification shown in Fig. 2, the permanent magnet ABC is associated with the detector G and four air gaps into any of which the specimen may be inserted. In a modification shown in Fig. 3, the flux produced from the magnet ABC is opposed by an equal flux produced by the winding H so that no flux passes through detector G. In a further embodiment shown in the Figure accompanying the Complete Specification two electromagnets having windings B and H are used, the fluxes being in opposition so that the detector G gives zero or a fixed datum output which changes when the specimen to be tested is inserted in either gap X or Y.
Patent GB-211756-A (GB)
Title: Improvements in or relating to air-filters
IPC: B01D46/18
Filed: 1923-05-01
Abstract: 211,756. M÷ller Ges., K. & T., and Mark, F. aus der. May 1, 1923. Filtering; dust-collectors.- A filter comprises a chamber containing an endless chain K, Fig. 2, the links of which are composed of a series of sheets a, b, Figs. 3, 4 and 5, arranged parallel to the direction of flow of the air and having V-shaped projections f, at an angle to the direction of the air current. The projections on adjacent plates are oppositely arranged, and the chain is adapted to pass through a trough containing an adhesive liquid some of which is scooped up by the plates on which the projections are upright. The air in passing through the spaces between the plates, is repeatedly deviated, and the dust adheres to the surfaces. The chain may be stationary, in which case the plates are rinsed from above with the adhesive liquid.
Patent GB-445144-A (GB)
Title: Improvements in or relating to pipe joints
IPC: F16L37/113
Filed: 1935-04-17
Abstract: 445,144. Pipe joints. BRITISH MANNESMANN TUBE CO., Ltd., Corporation Road, Newport, Monmouthshire, and ALBERT, W., 7, Richmond Villas, Swansea. April 17, 1935, No. 11876. [Class 99 (i)] Two pipes b, c, Fig. 2, are drawn together to compress a jointing ring a located between outwardly-extending flanges b<1>, c<1> on the pipes by relative rotation of a housing d and a cam e provided respectively with coacting lugs f and inclined surfaces h. As shown, the housing and cam are loosely mounted on the pipes and abut against the flanges thereof, the cam being slotted for the passage of the lugs f of the housing during assembly of the two parts. Fig. 3 shows a modified joint in which the flange c<1> is of partly spherical form.
Patent GB-437195-A (GB)
Title: Improvements in and relating to yarn winding machines
IPC: B65H59/04
Filed: 1934-04-20
Abstract: 437,195. Winding yarns. BRITISH TEXTILE FIBRES, Ltd., and HIRCHBERG, L. M., Glebe Mills, Hollinwood, Lancashire. April 20, 1934, No. 11886. [Class 120 (ii)] In order to maintain the tension of the yarn supply of a winding machine constant during the complete delivery of yarn, the spindle c of the supply bobbin or spool p carries a brake drum b embraced by a flexible supporting loop a connected by two links e, f and intervening spring g with the arm h of the usual compensating device ; the loop a is anchored in position by suitable means those shown comprising a link and spring connection k and a spring l adjustably secured by nuts and bolts n, m to parts of the machine frame. The upper link f is connected to the arm h by a V-shaped member j which is adjustable along the arm to suit the count or denier of the yarn being wound.
Patent GB-1358631-A (GB)
Title: Waveguide/coupler device
IPC: G02B6/34
Filed: 1972-03-15
Abstract: 1358631 Waveguide/coupler ALLIED CHEMICAL CORP 15 March 1972 [17 March 1971] 11949/72 Heading G2J Thin-film waveguides substantially insensitive to the frequency of the wave being propagated can be constructed from high refractive index material in a sandwich of low refractive index material by using the formulae presented in the Specification.
Patent GB-150254-A (GB)
Title: A new or improved combined electric switch and terminal
IPC: H01R4/30
Filed: 1920-04-30
Abstract: 150,254. Anderson, G. B., and Bucknall, B. April 30, 1920. Binding - posts combined with electric switches for use with lamps on motorvehicles. The head g of a screw binding- post f presses a spiral spring n on to an end piece l ou the end of the lead k thereby pressing the end-piece on to a brass washer o resting on the boss m of the base into which the post screws. When fully screwed in, the post makes contact with a plate b thereby completing the circuit from the lead k to the lead connected with the plate. When the post is screwed out, as shown, the circuit is broken, but the lead k is still held securely on the post by the pressure of the spring.
Patent GB-217888-A (GB)
Title: A process and apparatus for industrially removing the liquid medium from emulsion colloids
Filed: 1924-05-15
Abstract: 217,888. Pollak, F. June 22, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Moulds; processes.-Articles are produced from emulsion colloids by pouring into moulds which are permeable to the liquid medium but impermeable to the disperse phase, the material being allowed to dry in the mould with or without the application of heat. The moulds may be formed of porous material such as clay, wood, cardboard, porous metal or textile material, coated or impregnated with a substance forming a membrane permeable only to the liquid; or may be formed of a thick membrane. For removing water, cellulose ester varnish may be used as a membrane; or for alcohol or benzol, silica gels may be used.