baber/WOPTO huggingface dataset:
Patent GB-946211-A (GB)
Title: Improvements in or relating to servo-assisted brake operating mechanisms
Inventor: BALLARD DONALD HENRY
IPC: B60T13/24
Filed: 1959-06-08
Abstract: 946,211. Fluid-pressure brakes. CLAYTON DEWANDRE CO. Ltd. June 2, 1960 [June 8, 1959], No. 19578/59. Headings F2E and F2F. In a servo-assisted hydraulic braking system comprising a servomotor 1, a separate hydraulic master cylinder unit 17, a pedal-actuated lever 18 controlling operation of a servo-control valve 13 through push-rod connection 16 and power lever 22 adapted to transmit the output of the servomotor to the master cylinder to boost the manual effort exerted by the brake lever, the servo-output is transmitted through a thrust transmission which includes a disc or block of rubber or similar resilient deformable material 28 which when subjected to compression is extruded in part into a bore of smaller cross-sectional area in transverse wall 29 of tubular member 25 connected to power lever 22 wherein the deformable rubber block 28 acts upon a thrust member 30 to exert upon the pedal actuating lever a " reaction " force proportional to the output of the servomotor determined by the relative diameters of the thrust member 30 and the rubber block 28. The servomotor 1 shown is of the atmosphere " suspended " vacuum type wherein in the inoperative position shown the servo control valve 13 is open to permit atmosphere to exist on both sides of the piston and the vacuum connection 8 is closed in this position. Upon actuation of the pedal lever 18 the pushrod connection 16 is urged by spring 21 to close the valve 13 and connects the right-hand side of a piston to vacuum supply to move the piston 4 to the right and through connection 6, 23 moves the power lever 22, pivoted on common pivot 19 with pedal lever 18, and thus urges tubular member 25 to the left to actuate the master cylinder 17 through the connection hereinbefore described.
Patent GB-1539158-A (GB)
Title: Process for the preparation of 7-(1,4-dihydro-4-oxo-1-pyridyl)acetamido-cephem derivatives
IPC: C07D501/04
Filed: 1977-05-11
Abstract: To prepare cephem derivatives of the formula I, a compound of the formula II is reacted with an acid of the formula Z-CH2-COOH, where the substituents have the meaning given in Patent Claim 1, or with a functional derivative, which is suitable for acylation, of such an acid. The resulting product is subsequently solvolysed and/or hydrogenolysed. Subsequent appropriate working up of the resulting compound of the formula I yields the readily cleavable esters and physiologically harmless salts thereof. The process is easy to carry out and the end products are obtained in good yield and at high purity. The end products which are obtained demonstrate antibacterial activity and can be used as drugs, in particular for controlling bacterial infections. <IMAGE>
Patent GB-698580-A (GB)
Title: An adaptor for use with the turntable spindle of a record changing mechanism
Inventor: COSTA HARRY DA
IPC: G11B17/14
Filed: 1951-08-23
Abstract: 698,580. Magazine gramophones. PLESSEY, CO., Ltd. July 17, 1952 [Aug. 23, 1951], No. 19859/51. Class 40 (ii). An adaptor for use with a record changer centre-post such as that in Specification 663,679, comprises a divided casing in which the lower part 1 is free to rotate with the turntable 21, and the upper part 2, 3 is stationary on the centre-post 22 and has a ledge 4 from which records 5 are unseated by a spring-loaded ejector 12 operated by the pivotal ejector 23 in the centre-post 22. Specification 663,793 also is referred to.
Patent GB-464609-A (GB)
Title: Valve oscillator circuit for use in superheterodyne radio receivers
IPC: H03B5/10
Filed: 1936-07-17
Abstract: 464,609. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE. July 17, 1936, No. 19879. Convention date, June 19, 1935. [Class 40 (v)] A local oscillator of the screen-grid type for use in a superheterodyne receiver has its frequency maintained constant despite variations in supply voltage by suitable proportioning of the anode voltage and grid bias potentiometer, or by a suitable bias resistance in the cathode lead. As shown in Fig. 2, a Hartley screen-grid oscillator is supplied with operating voltage by a potentiometer 4, 5 across the supply source. The resistance 5 supplying the grid bias is so proportioned to the resistance 4 supplying positive voltage to the anode and screen grid - that supply variations are compensated in their effect on frequency. In Fig. 3, a pentode valve 8 is used, and grid bias is supplied by the voltage drop in a resistance 7 shunted by a large condenser 9 in the cathode lead. The screen 6 may be held at a higher positive potential than the anode.
Patent GB-220794-A (GB)
Title: Improvements in and relating to telephone receivers
IPC: H04R3/04
Filed: 1923-08-03
Abstract: 220,794. Fuller's United Electric Works, Ltd., and Welch, A. P. Aug. 3, 1923. Receivers; systems for transmitting music.- By means of a multiple way selector switch or its equivalent, any one or more of a series of fixed condensers may be connected in parallel with a loud speaking telephone in order to adjust it for reception of different kinds of sound. The positions of the selector switch may be numbered, or may be indicated by words implying their suitability such as " Speech," " Orchestra," " Soprano " and the like. An example is given of suitable values of condensers. The selector switch and condensers may be mounted in the base of the telephone, but they may also be mounted in a separate case for use with any telephone circuit.
Patent GB-893535-A (GB)
Title: Reaction apparatus
Inventor: PINKOW HANS
IPC: B03D1/16
Filed: 1960-06-07
Abstract: 893,535. Agitating suspensions; flotation apparatus. SCHWERMASCHINENBAU THALMANN, E. VEB. June 7, 1960, No. 19922/60. Classes 82(2) and 86. An apparatus for agitating a sludge with air and/or a liquid reagent, primarily intended for use as a pre-agitating cell in a flotation plant, comprises a container 1 of square horizontal cross-section with inclined bottom 2 and having an extension forming a duct 4 accommodating a rotating vertical shaft 18 carrying a propeller 21. Air, and/or reagent from a calibrated container 8, may be admitted through valves 6, 7 respectively to a conduit 24 and thence through an axially adjustable stationary tube 32 to the interior of a vane wheel 22 attached below the propeller 21 and rotating therewith. The propeller shaft 18 can be adjusted vertically by operation of the handwheel 16; the tube 32 is arranged to follow the movement of the vane wheel 22 and to slide in a gland in the conduit 24, see Fig. 4 (not shown). Sludge enters at 30 and circulates as shown, being discharged at the outlet weir 31. A window 9 is provided for observation of the circulation and for adjustment of the angle of inclination of the propeller blades.
Patent GB-387924-A (GB)
Title: Improvements in or relating to the manufacture of dithiocarbamates
Filed: 1932-07-14
Abstract: Dithiocarbamates are manufactured by reacting two or more molecular proportions of a primary or secondary amine with one of carbon disulphide, the starting materials being in a gaseous or vaporous state or in a state of very fine subdivision and diluted with a carrier gas which does not react with the starting materials or the reaction product.  The process is advantageously carried out by separately vaporizing the carbon disulphide and amine by passing gases through them and then bringing the vapour-laden gases together. According to the vapour pressure of the amine and the dilution desired, larger or smaller quantities of carrier gas are employed. The vaporization may be effected at ordinary, reduced or elevated temperatures according to the vapour pressure of the starting materials.  In order to secure a constant output the vaporization is effected in baths of accurately adjusted temperature.  Amines which are gaseous at ordinary temperatures are simply mixed with the carrier gas.  The process may also be carried out by bringing the starting materials into vapour form by distillation or in the case of difficultly vaporizable amines effecting very fine subdivision by means of atomizing jets, and then diluting with the gases.  Suitable carrier gases are nitrogen, hydrogen, carbon monoxide and water gas, also air if care is taken to prevent ignition.  The gases after leaving the reaction can be conducted again through the vaporizer. The process may be carried out at ordinary, increased or reduced pressure.  If the reaction is too vigorous it can be moderated by cooling.  The products, which are precipitated in a very pure, finely pulverulent form and which are of a white colour, are advantageously suited for the rubber industry particularly where colourless or specially coloured kinds of rubber are required.  In examples: (1) commercial piperidine and carbon disulphide are vaporized by passing water gas through them and reacted to form piperidine pentamethylenedithiocarbamate; (2) cyclohexylamine and carbon disulphide are vaporized by means of nitrogen and reacted to produce cyclohexylamine cyclohexyldithiocarbamate; (3) dibutylamine (at 80 DEG  C.) and carbon disulphide are vaporized by means of hydrogen and reacted to form dibutylamine dibutyldithiocarbamate; (4) dicyclohexylamine is atomized by means of water gas through a nozzle into a reaction chamber where it reacts with a mixture of carbon disulphide and water gas to yield dicyclohexylamine dicyclohexyldithiocarbamate.ALSO:Dithiocarbamates, obtained by reacting two or more molecular proportions of a primary or secondary amine with one of carbon disulphide, the starting materials being in a gaseous or vaporous state or in a state of very fine subdivision and diluted with a carrier gas which does not react with the starting materials or the reaction product, are, on account of their white colour, advantageously suited for the rubber industry, particularly where colourless or specially coloured kinds of rubber are required.
Patent GB-682725-A (GB)
Title: Paint brushes
IPC: A46B15/00
Filed: 1950-08-14
Abstract: 682,725. Ferrules; bridles; paint brushes. LENG, A. S. Dec. 14, 1950 [Aug. 14, 1950], No. 20109./50. Class 19. A ferrule for a paint brush, of the kind in which a flat bunch of bristles the width of which is substantially greater than the thickness is secured at one end in a sheet metal ferrule attached to a handle and in which the whole of the face end of the bristles is inclined transversely of the axis of the handle, has its forward side edges each shaped to form.two parts, one of which extends over about one third of the width of the brush and is at right angles to the longitudinal axis of the ferrule, and the other part is inclined and wholly straight or consists of a curved portion terminating in another straight part at right angles to the said axis of the ferrule. Fig. 1 shows the ferrule a with part of the forward edge d at right angles to the axis and the remainder c inclined thereto while Fig. 5 shows the ferrule provided with one third of the forward edge d at right angles to the axis, a curved mid-portion c and another straight portion d. The two forward edges of the ferrule may each have a reinforcement e adjacent thereto. The side faces of the ferrule may be parallel or mutually inclined (see Fig. 4). The shaped forward edges of the ferrule serve to support the bristles in use.
Patent GB-1168033-A (GB)
Title: Gate Assembly
IPC: G07C9/02
Filed: 1968-04-29
Abstract: 1,168,033. Ticket operated gate assemblies with fluid pressure actuating mechanism. INTERNATIONAL BUSINESS MACHINES CORP. 29 April, 1968 [3 May, 1967], No. 20124/68. Headings E1J and E2M. A fare-operated. entry gate assembly comprises at least one gate 13, or 14, in the form. of a slidable rectangle or of an isosceles triangle pivoted at 15, 16 to turn in a vertical plane between a projected position as shown from a console 11 and a retracted position within the console, the movement being normal to a side of the console and effected by means entirely within the console, such as a pneumatic system under the control of apapparatus such as an electronic ticket reader which sends out electrical signals to the operating system to initiate the desired operations, Fig. 5. There may be one pair of gates 13, 14 in each console projecting in opposite directions and in parallel planes and overlapping one another when retracted, or the two gates may be on the same side of the consul and project from the same side, their operation being successive rather than concurrently as in the preceding pair. Consoles may be arranged spaced across an entrance with the spacing approximately equal to twice the projection of a door as shown, the first two doors being operated when a ticket is inserted in slot 27, and after being read or processed and is returned through ticket slot 28 and removal therefrom opens the rear gates. A slot. 29 is provided for reverse operation. When the ticket reads incorrectly and is invalid, a lamp 26 illuminates a panel 25 on each gate to indicate that the gates remain closed and if valid, the gates are retracted by the cylinder piston mechanism 20, 21. Passage of the person through a censor beam closes the gates under the control of a timing mechanism. Pneumatic or hydraulic pressure from the pump 43, Fig. 5, is applied to the lower end of the spool valve 44 to bias it in the position shown against the action of a compression spring 47. Valve 45, which controls the direction of movement of the gate by directing pressure to either the upper lower end of the actuating cylinders 21 and 20', and valve 46. which controls the speed of movement of the gate by switching a restriction orifice 48 into or out of the fluid exhaust circuit, are controlled by suitable solenoid actuators. In the case of a valid ticket, the ticket reader provides a signal to the direction control valve 45 which activates the solenoid and moves the valve spool to its up position, thus placing the gate operating means in the open condition. As the ticket holder clears the gates, the photosensor 31 provides a signal to the direction control valve 45 to activate the solenoid in the opposite direction and move the spool valve to its down position to place the operating means in the closed condition.
Patent GB-212485-A (GB)
Title: Improvements in connection with feeding devices for mixers and other machines
IPC: B01F15/00
Filed: 1923-08-07
Abstract: 212,485. Haddan, A. J. H., (Jackson & Church Co.). Aug. 7, 1923. Mixing in definite proportions.-A device for maintaining an even thickness of material on a conveyer belt fed from a hopper, for feeding mixing and other machines, comprises a feeler riding on the material and electrical means whereby the depression of the feeler operates, in succession, vibrating devices on the sides of the hopper, and an alarm. The feeler 9 is mounted on an arm 10 on a rock shaft 11 fitted with arms 17, 18, 19 adapted in turn to close contacts 14, 15, 16 whereby the vibrators 12 and alarm are operated. The alarm, which may consist of a gong or light, may also be operated when the feeler is raised by an excess of material.
Patent GB-1408831-A (GB)
Title: Hydroxymethylamino nitrile salts for quenching the fluorescence of optical brightening agents
IPC: D21H21/30
Filed: 1973-04-27
Abstract: 1408831 Hydroxymethylamino nitrile salts CIBA-GEIGY AG 27 April 1973 [27 April 1972] 20148/73 Heading C2C [Also in Division D2] Salts of hydroxymethylamino nitrile in dry powder form are claimed per se and are obtained by reacting HOCH 2 .NH.CN with the acid and water and drying (e.g. at < 100 C.) the resulting product. The acetate salt of hydroxymethylamino nitrile is prepared by reacting the nitrile, formed by reacting hydrogen cyanamide with formaldehyde, with glacial acetic acid, and drying the resultant product. Other salt-forming acids specified are formic, propionic, octanoic and citric acids, HCl, H 2 SO 4 , HNO 3  and H 3 PO 4 .
Patent GB-763388-A (GB)
Title: Mining machine for use in mineral seams
IPC: E21C29/20
Filed: 1954-07-09
Abstract: 763,388. Mineral-mining machines. DEUTSCHE KOHLENBERGBAU-LEITUNG. July 9, 1954 [July 17, 1953], No. 20160/54. Class 68 (1). In mining machines which are pulled by a chain along the working face, the ends of the chain are attached to hooks c formed on the ends of a bar b which is mounted slidably in the machine a and connected normally to it by a shear bolt d passed through a bush e in the machine and a bush f in the bar. The movement of the bar is limited by abutments g on the machine disposed in the path of the hooks. When the bolt d is sheared, the reduction in the resistance to the movement of the chain causes the driving means to accelerate thereby actuating either trip mechanism or an electrical control device to switch off the drive. The drive may be stopped manually by an attendant. In a modification the bar b is dispensed with and the chain is connected to the machine through a hinged pawl and shear bolt.
Patent GB-1033570-A (GB)
Title: Apparatus for metering and mixing a plurality of pumpable components and for dispensing the resultant mixture
Inventor: TRUMBRILL DONALD EDMUND
IPC: B01F15/04
Filed: 1965-05-13
Abstract: 1,033,570. Delivering measured quantities of fluent material. PYLES INDUSTRIES Inc. May 13, 1965, No..20338/65. Heading B8N. [Also in Division B1] An apparatus for metering and mixing a plurality of pumpable components, e.g. an accelerator and catalyst of a multi-part adhesive, comprises a metering chamber 102 for each component having a piston 112 therein movable by the pressure of the component which passes through an inlet 104 and outlet 222 under the control of valve means 118, 120, adjusting means 108, 228, 230 for varying the capacity of the chamber and a mixing chamber 160 having inlets 154, 156 for each component and an outlet 182 for dispersing the mixture. The piston 112 is slidable in a housing 100 and is provided with ports 116 which in the position shown communicate with the inlet 104. The valve means 120, 118 is controlled by a rod attached to a piston 124 normally loaded to the position shown by a spring 126 and moved by means of compressed air fed through an inlet 129; the valve 118 passes through a chamber 110 which connects with the mixing chamber 160 via the inlet 156 and a non-return valve 172; the second metering chamber is mounted alongside the first and connects with the mixing chamber via the inlet 154, Fig. 5 (not shown), and a one-way valve. In operation, a pressurized component is fed into the metering chamber 102 via the inlet 104 and ports 116. After a certain time, compressed air is fed through the port 129 to act on the piston 124 thereby moving the valve 118 so that a reduced diameter portion 120 thereof moves adjacent the outlet 222 and the end of the rod attached to the piston closes the ports 116. The pressure of the component material in the inlet 30 then acts on the piston 112 to force the material in the metering chamber through the outlet 222, port 156 into the mixing chamber 160; the other metering chamber is operated simultaneously in the same way so as to force its component material into the mixing chamber. A mixing impeller 176 is located in the mixing chamber and is operated by compressed air. As both component materials are forced into the mixing chamber, a measured amount of mixed material is forced through a dispensing nozzle 42, Fig. 6 (not shown), having a valve 214 connected to a compressed air actuated piston 206; the valve is arranged to cause a suction to prevent drooling of the mixture after a dispensing operation. Means are provided to facilitate the easy removal of the mixing chamber and nozzle and also for flushing the system with a cleaning solvent. The compressed air control circuit may be replaced by hydraulic or electrical means.
Patent GB-785599-A (GB)
Title: Improvements relating to shoes
IPC: A43B7/14
Filed: 1955-11-28
Abstract: 785,599. Boots &c. MACCARONE, F. Nov. 28, 1955 [Feb. 3, 1955], No. 20362/56. Divided out of 785,598. Class 17(2) A leaf spring 18 is provided in the shank of a shoe to cause the heel to cling to the foot during use. The spring is passed under a strap 26 formed by parallel slits in an insole 22 and pivots about its central portion causing the heel 36 to follow the foot as the weight is brought forward on to'the toes. The spring is covered by a sock lining 10, described and claimed in Specification 785,598. In a modification, the spring is fitted in a pocket formed between layers in the sock lining which may. be incorporated as a unit in an otherwise completed shoe.
Patent GB-483263-A (GB)
Title: Improvements in spring suspension arrangements for vehicles
IPC: B60G21/045
Filed: 1937-07-22
Abstract: 483,263. Spring suspensions for vehicles. TATRA-WERKE AUTOMOBILUND WAGGONBAU AKT.-GES. July 22, 1937, No. 20371. Convention date, Aug. 26, 1936. [Class 108 (ii)] A spring-suspension for a vehicle comprises a rigid doublearmed lever 9 mounted on the chassis between two axles 6, 7 by a horizontal pivot on a short bearer 8 transverse to the direction of travel, -and a torsion rod spring arrangement mounted on or in the lever and connected to the axles by lever arms 12, 13 extending transversely to the direction of travel. As shown, the wheels are mounted on half axles 6, 6<1> and 7, 7<1> connected to a central bearer 5. A short bearer 8 transverse to the bearer 5 has pivoted thereon tubes 9 forming a double-arm lever and containing torsion rods 10, 11, Fig. 2, provided with lever arms 12, 13 bearing on the half axles 6, 7. The adjoining ends of the torsion rods are interconnected by levers 14, 15 and a central pivoted lever 16 whereby part of the load on one wheel is transmitted to the other wheel. Each torsion rod may extend through the tube and be connected to the end thereof or a continuous rod having the levers 12, 13 arranged 180 apart may be used.
Patent GB-1336231-A (GB)
Title: Hydraulic double-acting piston pump
IPC: F04B1/02
Filed: 1971-04-19
Abstract: 1336231 Reciprocating pumps M T CHAVARRIA AND O RISSO 19 April 1971 [30 Jan 1970] 20460/71 Heading F1A A double-acting piston pump comprises a cylinder 3 disposed in a reservoir 1 of the liquid to be pumped, and having a piston 2 with a pin 4 projecting through a longitudinal slot in the cylinder and engaging a fork in a lever 7 pivoted on a shaft 8 and oscillated by a crank-pin 12 engaging another fork in the lever. The crank-pin 12 is rotated by a shaft 14 connectable to a driving pulley 16 by a clutch comprising a disc 17 non-rotatably slidable on shaft 14, and having a pin 19<SP>1</SP> engageable with pin 20 on the pulley when spring 22 is released by scissors 23 to move disc 17 towards pulley 16. Scissors 23 are controlled by a piston 24 which is subjected to the pump delivery pressure by a pre-set safety valve when the delivery pressure exceeds a predetermined value, the scissors acting to compress spring 22, permitting spring 21 to disengage the clutch. The pump supplies liquid to a consumer point with a plurality of valve-controlled outlets, and a valve-controlled return line to the pump, Fig. 4 (not shown).