baber/WOPTO huggingface dataset:
Patent GB-1150054-A (GB)
Title: Rotary Piston Internal Combustion Engine
IPC: F02B55/14
Filed: 1966-04-28
Abstract: 1,150,054. Rotary-piston I. C. engines. TOYO KOGYO K. K. April 28, 1966 [May 6, 1965; May 24, 1965], No. 18709/66. Heading F1F. In a rotary-piston I. C. engine of the trochoidal n and n + 1 lobe type at least one chamber 14 is or are, formed in the peripheral wall and/or the, or one of the, end walls 1, 2 of the casing, in which chamber or chambers any condensed fuel in a working chamber A adjacent an inlet port 5 is deposited by the scraping action of sealing members 11, 12 on the piston 8 while fuel-and-air mixture in the chamber A is being compressed, thereby rendering wetting of the said walls by the fuel minimal. When one of the sealing members adjacent the trailing end of the chamber A passes the, or each, chamber 14 the fuel collected therein is displaced into the adjacent working chamber C by the pressure of the compressed mixture in the chamber A, the displaced fuel being dispersed in the fresh charge of fuel and air. The chamber or chambers 14 in the wall 3 may be replaced by a chamber (16, Fig.4, not shown), formed within the wall 3, which chamber is connected to the adjacent working chamber, or chambers, by a plurality of holes (17). Unduly rich fuel-and-air mixture collected in the trailing portion of the working chamber B can escape to the chamber A through grooves or chambers 15 formed in the wall 3 and/or one or both of the walls 1, 2 in the region of a spark plug 7.
Patent GB-357241-A (GB)
Title: Improvements in or relating to cord circuit repeaters
IPC: H04M3/40
Filed: 1930-06-20
Abstract: 357,241. M a n u a 1 exchange systems. STANDARD TELEPHONES & CABLES, Ltd., LOWRY, L. P. and CONNOLLY, C. G., Columbia House, Aldwych, London. June 20, 1930, No. 18805. Addition to 340,567. [Class 40 (iv).] In the system described in the parent Specification in which repeatered cord circuits are inserted in connections by a repeater operator, the cords having single plugs at each end and switches which hunt for the connected trunks and connect up balancing networks, monitoring circuits &c., the trunks are multipled to two or more positions and arrangements are provided for preventing switches at more than one position from operating at the same time. Two-position system OP1, OP2, Fig. 1. The operator at OP1 inserts, into the calling trunk, plug P of the next idle repeater circuit indicated as described in the parent Specification, over a bank (not shown) of DMA1. Relays S, D, A, C operate and A holds over a2. When the switches (not shown) at the left-hand end of the cord have made the requisite connections, DMA1 takes a step and SS, DD, C pull up over plug PP which has been inserted in the outgoing trunk, slow-torelease relay A remaining held. When the righthand switches have operated DMA1 steps on to the next idle cord circuit and the operated relays restore. When A is operated, the corresponding circuit over B in position OP2 is opened. If cords are plugged simultaneously in both positions, a quickly operating relay C opens the circuit of B to give preference to OP1. Multi-position arrangement, Fig. 2. The operator at OP1 plugs into the calling and outgoing trunks as before. Relay A pulls up but S, D remain inert owing to the high resistance of A (lower). Relay X pulls up. Assuming that a master control switch MAS is not standing on contacts corresponding to position OP1, a locking circuit for A does not exist, and assuming further that that cord switches at positions OP2, OP3 are not hunting (B, C unoperated), MAS hunts over mas2 for the contact from which ground has been removed at a1. When this contact is reached A locks up, D, S operate, and it will be seen that MAS cannot be stepped until A is released after the cord switches at OP1 have completed the hunting movement, and consequently if a cord is plugged at OP2 or OP3, B or C operate without effect since the D, S relays at these positions remain inert. The switch MAS may be replaced by relay switching arrangements.
Patent GB-655856-A (GB)
Title: Improvements relating to optical apparatus for educational and demonstration use
IPC: G01M11/04
Filed: 1948-07-14
Abstract: 655,856. Optical benches. GEORGE & BECKER, Ltd., W. & J., and MORRIS, R. H. July 14, 1948, No. 18868. [Class 97 (i)] An optical bench comprises a slideway over which are slidably mounted saddles, each of which has rigid therewith a circular holder for an optical component, the centres of the holders being at the same height above the slideway so that the optical components carried thereby are located on a common optical axis. As shown, the bench consists of parallel guides 15 secured at the ends thereof in mounting blocks 16. Slidably mounted on the guides are saddles 18, each of which has at one end a bifurcated portion, the arms 18a of which are hooked over one guide 15 and are held thereon by a spring 19 carried underneath the saddle and pressing against the other side of said guide 15, and at the other end a recess from which projects a stud that rests on the other guide 15. Bolted to each saddle is a holder A, B, C or D, each incorporating an annular frame 17, the centres of which are at the same height above the guides 15; one saddle 18 carries an incandescent lamp 30. The holders A, C and D are similar and, as shown in Fig. 3, the annular frame 17 of each thereof is recessed at 17b. In this recess may be mounted a screen D1, Fig. 1, or an annulus A1 or C1 carrying centrally a pointer 23 or an object plate 25. The screen or annulus is held in its respective holder by a screw 20. The annular frame 17 of the holder B is also provided with a recess in which is turnably mounted an annulus 26 connected with the frame by a spring 28, Fig. 5. Pivoted to the frame 17 and annulus 26 are three arms 27, each provided with a grooved pad 27a for holding a lens or other optical component. The spring is so arranged as to tend to bring the pads 27a to a central position and a lens may be mounted in the holder by rotating the annulus 26 movably by means of a thumbpiece 26a and against the action of spring 28.
Patent GB-1107572-A (GB)
Title: Process for the manufacture of n-acyl taurides
IPC: C09K23/00
Filed: 1965-05-05
Abstract: N-Acyl-taurides of the formula RCONH-CH2CH2-SO3Me wherein R represents a C6- 22 aliphatic saturated or unsaturated branched or straight-chained radical, or a cycloaliphatic, aromatic, aromatic-oxyalkyl, or aliphatic-aromatic radical and Me represents an alkali or alkaline earth metal cation, are prepared by condensing an alkali or alkaline earth metal salt of 2-hydroxy-ethane-sulphonic acid with a carboxylic acid amide of the formula R-CONH2 in the presence of a catalytic quantity of an alkali or alkaline earth metal hydroxide or alcoholate at a temperature ranging from 190 DEG  to 250 DEG C., an inert gas such as nitrogen or carbon dioxide being passed into the liquid surface or through the reaction mixture from below while stirring, the water formed being removed from the reaction mixture.
Patent GB-627964-A (GB)
Title: Electroplating metals
IPC: C25D5/18
Filed: 1945-07-24
Abstract: 627,964. Electrodeposition of metals. POOR & CO. July 24, 1945, No. 18972. Convention date, April 14. [Class 41] A method of electro - depositing metals comprises passing a plating current of abnormal wave - form having peaks and valleys through an alkaline plating bath of a metal to be deposited, the valley value of the voltage being within the range of a maximum of 1.9 volts to a minimum of minus two-thirds of the positive peak value. As shown, an anode 2 comprising one or more electrodes, and a cathode 3 are in a circuit containing a rheostat 9, a lowvoltage direct current generator 8 and the secondary 4 of a transformer 5. The primary 6 is connected through a regulating autotransformer 7 to a source of alternating current. In one example of a method of electroplating, a plating bath containing cadmium oxide and sodium cyanide is subjected to a current in sine wave-form with four volts alternating current and six volts direct current. The valley voltage is just below 1.9 volts. In another example a plating bath containing copper cyanide, sodium cyanide, sodium hydroxide and potassium gluconate is subjected to current from an A.C. voltage of 7 volts superimposed on a D.C. voltage of 6 volts. Other examples are given in connection with electro-deposition of zinc and tin. Reference has been directed by the Comptroller to Specification 599,707.
Patent GB-1092825-A (GB)
Title: Improvements in or relating to vinyl-containing rosin copolymers
IPC: C08F22/00
Filed: 1965-05-05
Abstract: A copolymer may be made by polymerizing (1) a half-ester of an unsaturated dicarboxylic acid or anhydride rosin acid partial ester of a polyol, said half-ester having the formula <FORM:1092825/C3/1> where P is the residue of a polyol of hydroxyl functionality n esterifed with x equivalents of rosin acid R and y equivalents of an a ,b -unsaturated dicarboxylic acid or anhydride A, n being at least 2, x being at least 0.5 and not greater than (n-0.5), y being at least 0.5 and not greater than 2, and (n-x)-y ranging from 0 to 2.5, with (2) at least one polymerizable monomer containing the <FORM:1092825/C3/2> group, the amount of polymerizable monomer in said copolymer being from 10 to 90% by weight based on the total weight of (1) and (2). Component (1) may be formed by heating a polyol with a rosin acid at a temperature from 190 DEG  to 290 DEG C. to form a rosin acid partial ester of the polyol having an average hydroxyl functionality of at least 0.5 and then reacting the resultant partial ester RxP at 110 DEG  to 160 DEG  C. with an a ,b -unsaturated dicarboxylic acid or anhydride.  When component (2) is a monomer mixture it may be necessary and/or desirable to treat the rosin monomer with a carbocyclic dicarboxylic anhydride, the amount added being sufficient to react with any hydroxyl functionality of the polyol which has not reacted, or will not react, with the rosin acid and the a ,b -unsaturated dicarboxylic acid.  The copolymers may be thermoset by reaction with amino-formaldehyde resins, urea-formaldehyde resins, epoxy resins and isocyanate resins.  Two monomers (2) may be used, e.g. styrene and maleic anhydride.
Patent GB-886785-A (GB)
Title: Electric caliper
IPC: G01B7/12
Filed: 1960-05-30
Abstract: 886,785. Electric caliper gauges. SIMPLEX WIRE & CABLE CO. May 30, 1960 [June 10, 1959], No. 19079/60. Class 40 (1). An electric caliper gauge comprises two flexible resilient legs each including a flat spring and a strain-responsive impedance bonded to the spring, means securing one end of each leg so that the other ends are adjacent to one another, and a circuit responsive to changes in the impedances due to relative movement between the free ends of the legs but not responsive to common movement of the free ends. The device is particularly suitable for continuously gauging the diameter of a moving cable, and in this case four legs may be provided with the corresponding impedances connected to a circuit to indicate the average diameter or to two different circuits to show the diameters in planes at right angles to one another. The device is insensitive to cable vibration. By having two impedances on each leg errors due to temperature differences between one leg and another (which may occur if the cable is hot) are balanced out. In Fig. 1 four resilient legs (of which three are shown, 25, 27, 28) are arranged at 90-degree intervals around a cable C whose diameter is to be measured. Each leg is adjustably clamped at one end to a plate 12 and carries at the other end a contact tip 29 which engages the work. The legs comprise flat springs to which are bonded strain-sensitive resistance wires such as 25a, 25b, 27a, 27b so that an increase in diameter of the travelling cable C will compress the outer elements (25a, 27a) and subject the others to tension. The resistances are arranged in an automatically balanced bridge (Fig. 3) which is initially balanced for a standard cable diameter. In the simplest case resistors R1 and R2 are the elements 25a and 27b while R3 and R4 are fixed resistors, but it is preferred that the elements 25b and 27a be included as resistors R3 and R4 respectively, to cancel out differential temperature errors. A similar bridge is provided to measure the diameter sensed by the other two legs at right angles to the first two. Alternatively, the four bridge resistors are chosen from elements on all the four legs, so that the average diameter is measured. The remaining elements can then be connected in separate bridges to measure the vertical and horizontal diameters or in a single bridge so connected as to measure the difference between these two, i.e. ovalness. When the cable is being coated with insulation two such measuring devices, located one each side of the extruder, can be connected to indicate the difference between the corresponding diameters, i.e. thickness of coating. This can be done in both horizontal and vertical planes. Details are given of the strain-sensitive elements and their mounting. The device can be calibrated by inserting a steel rod of known thickness having a step of known dimensions.
Patent GB-147096-A (GB)
Title: Improvements in bearings for centrifugal machines
IPC: B04B9/12
Filed: 1920-07-07
Abstract: 147,096. Bechtolsheim, Clemens, Baron von, Bechtolsheim, Max, Baron von, and Bechtolsheim, Georg, Baron von. May 30, 1919, [Convention date]. Driving and balancing.-In a separator or other centrifugal machine supported on a fixed base, the bearing surface of the shaft engaging with the base or with the drum, or both these surfaces are curved, the radius of curvature being greater than the distance between the centre of gravity of the supported mass and the said surface, so that the centre of gravity of the supported part is raised when the shaft is tilted. A shaft a, Fig. 1, driven by a pulley e, is rotatable in a sleeve b, the spherical surface c of which rests on a plane support d. The sleeve is connected with the frame d by a ring segment f of leather &c. A head h with spherical surface g rests against the drum, being guided in an extension i and driving by a catch k. Alternatively, the surface d may be curved and c plane. In a modification, a shaft a, Fig. 3, rotates in a sleeve l having a collar m resting on a ring n which has two curved surfaces and rests itself on the frame. The surfaces of the ring n consist of two cylindrical surfaces with axes at rightangles, permitting a tipping movement in all directions. Fig. 5 shows a modification, in which the foot q of a stationary shaft p has a moved sole resting on a plane surface, the upper part of the foot being spherical and centred by a spring-pressed ring r. A hollow shaft o drives the drum through a connexion including a ring t similar in form to the ring n, Fig, 3, and is centred by a spherical nose v engaging a cylindrical bore in the ring t. In another modification, a fixed driving-shaft w, Fig. 6, drives a shaft a through a catch, the spherical base y of the shaft a resting in a hollow cylindrical head x of the shaft w. Crossed cords z hold the shaft a to get over the critical speed.
Patent GB-1141795-A (GB)
Title: Filling and sealing containers for pressurised fluids
Inventor: SPIELMANN ERICH ROLAND
IPC: F17C13/06
Filed: 1965-05-06
Abstract: 1,141,795. Sealing closures to containers. BRITISH OXYGEN CO. Ltd. 3 May, 1966 [6 May, 1965], No. 19181/65. Heading B8C. [Also in Divisions B3 and F4] A metal bulb 4 is charged with compressed carbon dioxide and is then sealed firstly by placing the neck of the bulb in sealing engagement at 15 with the lower rim of a cylindrical chamber 18 formed in a body 11 and having its upper rim covered by a hollow die 25 and a portion of strip metal 40, secondly by opening a valve 20 to admit compressed gas through a duct 17 to the chamber 18 and the bulb 4, thirdly by punching a closure element from said strip 40 through said die 25 by means of a member 34 which comprises an electrode and finally passing current through said electrode to weld the closure member to the bulb 4. A plurality of empty bulbs are mounted on an indexing table 3 and after a bulb has been sealed the body 11 which is secured by studs 12 to an upper body 10 is lifted free of the bulb, the next empty bulb is moved into position and body 11 is moved downwards into sealing engagement therewith.
Patent GB-290183-A (GB)
Title: Improvements in fuel pumps for internal combustion engines
IPC: F02M59/02
Filed: 1927-07-21
Abstract: 290,183. Hemmingsen, T. V. May 9, 1927, [Convention date]. Cam-and-lever actuated pumps; relief devices ; regulating delivery by opening bye-passes. - A fuel pump for internalcombustion engines has a bye-pass channel 10 between the pump barrel 6 and the suction chamber 3 which is closed by the plunger at the beginning of its delivery stroke. The plunger is actuated by a cam 14 and lever 13 provided with an adjustable screw 12 by means of which the moment of closing the channel 10 may be varied. A relief valve 9 is arranged at the end of the barrel 6. The bye-pass 10 prevents pressure from developing too quickly in the barrel 6.
Patent GB-1176716-A (GB)
Title: Disc Brake.
Inventor: PETTIFAR DAVID ROBIN
IPC: F16D65/095
Filed: 1967-04-27
Abstract: 1,176,716. Disc brakes. FORD MOTOR CO. Ltd. 27 April, 1967, No. 19352/67. Heading F2E. In a disc brake of the kind comprising a housing 1 containing a pair of pads 13 which are applied to a disc 15 by pistons 9 in cylinders 7 formed in respective halves 3, 5 of the housing, an opening 17, formed in the housing to permit withdrawal of the pads radially for inspection and replacement, is protected by a detachable imperforate shield 28 of spring steel which clips either on the housing or, as shown, over removable pins 19 which are threaded through apertures in the pad backing plates 11 and in the housing to retain the pads, the shield having arms 25 provided with recesses 27 adapted to engage the projecting ends of the pins 19 or similar abutments on the housing. The pins 19 are prevented from axial movement by split pins 21.
Patent GB-1192272-A (GB)
Title: Improvements in or relating to Exposure Devices for Copying Machines.
IPC: G03B27/54
Filed: 1968-04-24
Abstract: 1,192,272. Episcopic exposure device. W. ZINDLER, [trading as LUMOPRINT ZINDLER K.G.]. 24 April, 1968 [28 April, 1967], No. 19396/68. Heading F4R. [Also in Division G2] An episcopic exposure device for use in a copying machine (Fig. 1, not shown) has a reflector divided into a plurality of reflector sections, a parabolic reflector section 15 being arranged to screen the light source 24 from the exposure opening 1 and to reflect light there. from to a redirection reflector section 33 arranged to reflect direct and reflected light to the exposure opening (Figs. 5 and 4 respectively not shown). Light from two quartz-iodine lamps 24 is reflected as (a) a parallel beam by 15 being further reflected as a parallel beam by 33, (b) a random beam reflected by surfaces 34, 35, 36, 37 and (c) a further random beam reflected by surfaces 39, 40, 41 (Fig. 6, not shown). The surfaces 34-37 and 39-41 are plane but may be curved. An image opening is provided at 20.
Patent GB-194997-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F02F3/00
Filed: 1922-07-14
Abstract: 194,997. Thomas, W. T., Gwynn, C. V., Gwynn, A. E., and Williams, R. July 14,1922. Splash guards.-A concall diaphragm 1, having a central aperture 2, is fitted between the piston head and the gudgeon pin of an internal-combustion engine to pre vent lubricating o i 1 splashing on the piston head and carbonizing thereon.
Patent GB-1520533-A (GB)
Title: Pulse generating circuit for a timepiece
IPC: G04C13/11
Filed: 1976-05-12
Abstract: 1520533 Electronic timepieces SEIKO KOKI K K 12 May 1976 [22 May 1975] 19549/76 Heading G3T In an electronic timepiece wherein a stepping motor is coupled to a seconds hand and has a coil M, Fig. 1, energized via a CMOS transistor bridge circuit Q1 to Q4 controlled by the complementary outputs of a frequency divider 3 an early stage of which is a dynamic frequency divider, the motor coil M is connected in series with a capacitor C o  and is shunted by a normally open switch. Closure of the switch shorts the motor coil, thus stopping the motor and hence movement of the seconds hand for setting purposes. In Fig. 2, the normal driving current waveform is illustrated in line i and i' indicates the waveform of current flowing between terminals a, b when the switch is closed. It is demonstrated that integration of the respective current waveforms shows that the current consumption is the same in both cases.  A crystal controlled oscillator feeds the frequency divider 3 the remaining stages of which may comprise a binary counter.
Patent GB-478253-A (GB)
Title: Improvements in or relating to ships for carrying other craft
IPC: B63B9/00
Filed: 1936-07-14
Abstract: 478,253. Ships carrying other craft. WILLIAMS, G. H. KREASEL-. July 14, 1936, No. 19562. [Classes 113 (ii) and 115] Ships carrying other craft such as submarines or barges having a lesser radius of action than the mother-ship, the craft are mounted on or in a rotatable frame so that the craft may be launched in succession down a passage or slipway formed in the hull. As shown in Fig. 1, submarines 11 are mounted in a self-levelling fashion in a frame 16 which is rotated, for example, by ropes 21 to align the craft in succession with the shoot 2 which is continued by the outboard slipway 4 supported by the pontoon 5. In a modified arrangement, the submarines are launched from the ship below the water level. In another form, barges 28, Fig. 6, are hung from the frame 26 which is rotated by the gearing 33, 34. Aircraft may also be stored in galleries 47 and launched by means of the adjustable platform 48.
Patent GB-729397-A (GB)
Title: Electrical vibratory dental amalgam packer
IPC: A61C17/18
Filed: 1953-07-14
Abstract: 729,397. Dental instruments. SAMUEL, A. D. CLIFTON-. Nov. 2, 1953 [July 14, 1953], No. 19589/53. Class 81.(2). A dental amalgam packing appliance comprises a handle A carrying a lever R pivoted at G and carrying a packing head F at one end. The other end Q of the lever is vibrated by an electromagnet C which may be energised either by low voltage A.C. or by interrupted D.C.
Patent GB-478263-A (GB)
Title: Improvements in or relating to methods of and means for discharging electricity frommaterials
IPC: H05F3/04
Filed: 1936-07-15
Abstract: 478,263. Discharging electricity from fabrics &c. CHADFIELD, C. R. A. July 15, 1936, No. 19655. [Class 35] Means for discharging electricity from paper, fabric, &c. comprises an elongated member with a sharp edge extending along substantially its whole length and supported with the sharp edge touching or in close proximity to and transversely of the path of movement of the material. In the form shown in Fig. 4, a thin metal blade 6 extends along the interior of a tube 7 through a slot 7a of which the sharp edge 6a of the blade extends, the blade being resiliently supported in the tube 7 which is transverse to the direction of travel of the material to be treated. A series of apertures near and parallel to the blade 6 may be provided in the tube 7 for the issue of streams of ionized air supplied to one end of the tube 7. In the form shown in Fig. 5, the sharp edge is formed by the shaped edge 33 of the transverse tube 35 past which the paper or other material 1 passes.
Patent GB-1427654-A (GB)
Title: Method of preparation of hydroxylamine formate
IPC: C07C67/00
Filed: 1974-05-06
Abstract: 1427654 Hydroxylamine formate COMMISSARIAT A L'ENERGIE ATOMIQUE 6 May 1974 [18 May 1973] 19741/74 Heading C2C] Hydroxylamine formate is prepared by reacting an aqueous solution of a hydroxylamine salt with an organic solution of formate of an amine which is insoluble in water. Hydroxylamine sulphate, hydrochloride or nitrate may be used and the amine may be trilaurylamine. The reaction may be continuous in countercurrent flow contact in a multistage extractor.