baber/WOPTO huggingface dataset:
Patent GB-121708-A (GB)
Title: Improvements in Machines for Cleaning Sheepskins and the like.
Inventor: GASS ROBERT LAMBERT
IPC: D06G1/00
Filed: 1918-08-02
Abstract: 121,708. Gass, R. L. Aug. 2, 1918. Carpets and the like, beating and cleaning mechanically. - A machine for cleaning sheep skins &c. comprises beaters which strike the skin suspended between them while washing liquor is sprayed upon the skin. The beaters ware mounted on linkages t, y, x which constrain them to a parallel motion, a slight play to allow for unevsnnesses of the skins being permitted by a pin and slot connexion between the links x and y. The links t are fixed to shafts q which are rocked through the medium of levers p by connecting- rods o pivoted at the top to a beam oscillating about a point k. The beam j is given a slow rising and a sharp falling motion by a cam i engaging a roller m thereon, the cam i being driven through gearing f, g by the power shaft d. In order to regulate the blow with which the beaterscome together when the beam j drops, a dash-pot 4 is provided having a piston 5 connected by a rod b with the free end of the beam j. A spring 8 is compressed on the rising of the beam, and an adjustable air-cock 10 regulates the force of the blow when the cam i allows the beam to fall. Spraying pipes 29 are located on each side of the skin 12 and are fed by a rotary pump drawing liquid from the vat c by a pipe 28. The skin 12 is suspended over a rod &c. 13 which lies loosely on supports and is given a to and fro moticn by means of a ratchet and pawl worked from an eccentric 16 and rod 17.
Patent GB-437118-A (GB)
Title: Improvements in and relating to control systems for alternating currents circuits
IPC: G05F1/32
Filed: 1934-04-26
Abstract: 437,118. Control systems for consuming devices. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. April 26, 1934, No. 12640. Convention date, April 26, 1933. [Class 38 (iv)] A plurality of load devices such as groups of lamps 3 are supplied in parallel from A.C. mains 1, 2 through saturable chokes 4 and boosting auto-transformers 5 which compensate for volts drop due to load currents, each circuit, A, B, C being operated in sequence by controlling the saturation of the chokes 4 by windings 7 each energized in accordance with the current in a preceding circuit, rheostats 11, 10, 14, 20 being provided for varying the relative times of sequence operation of each circuit. Each of the control windings 7 is energized, preferably through a rectifier 8, in series with a saturable choke 9 paralleled by a resistance 14, and in series with a resistance 10 across the voltage of its load 3 and part of its reactor voltage 4 as by direct connection to the reactor winding or by a potentiometer connection. The saturating winding 15 of each reactor 9 is supplied in a circuit through a rectifier 16 and a voltage sensitive circuit comprising resistance 20, 21, capacity 19 and self-saturable inductance 18 from across the voltage of the load 3 in the preceding circuit, that of the first circuit A being connected across the saturable reactor 4 of the last circuit C. The arrangement produces intermittent energization of the loads 3 which are energized in sequence, the times of increase, decrease and of current in each circuit and the time interval between de-energization of each circuit being controlled by the rheostats 11, 14 and 20. Some of the control circuits 17 may be paralleled on each other to produce coincident increase of current in their load circuits. Specification 430,084 is referred to.
Patent GB-1470269-A (GB)
Title: Container for liquid or pasty dentifrice
IPC: A46B11/00
Filed: 1974-03-21
Abstract: 1470269 Tooth brushes TRISA BURSTENFABRIK AG 21 March 1974 [7 Jan 1974] 12680/74 Heading A4K On introduction of a dentifrice containing cartridge 30 into the hollow handle 31 of the tooth brush described in Fig. 9 of Specification 1470268, a thorn 39 protruding from the piston 37 perforates the end-wall 30e of the cartridge. The cartridge may have a rectangular, circular or horse-shoe shaped cross-section.
Patent GB-641038-A (GB)
Title: Improvements in and relating to machines for grinding or refining paint, cellulose, chocolate and other substances
IPC: A23G1/10
Filed: 1948-05-10
Abstract: 641,038. Stationary-drum grinding machines. McINTYRE, J. May 10, 1948, No. 12763. [Class 59] In a grinding-machine wherein a rotor carrying resiliently loaded longitudinally extending grinding bars rotates within a fixed cylinder lined with longitudinal grinding bars, the rotor bars are capable of radial movement being urged radially outwards by resiliently loaded flexible bands which bear thereon. As shown. Figs. 1, 2, a rotor 14 having on its periphery open-ended radial slots 15 for the reception of skewed grinding bars 16 rotates in the jacketed cylinder 10, the inner surface of which is lined with grinding bars 12. Skewed plates 17 for the direction of material being ground into the openings between the rotor bars 16 are carried by the rotor at the rear of each group of bars. Spring steel pressure bands 18, each formed of semi-circular segments, bear on the inner faces of the rotating bars 16<SP>1</SP>, the end of each segment being secured by hinge members 19, 19a, Fig. 3, and pivot pins 20 to brackets 21, the two upper brackets straddling the cross bar 22, the two lower ones straddling cross bar 23, both bars passing through slots in the rotor. Rods 24, screw threaded at their inner ends 26, and sliding in guide lugs 25 of brackets secured to the rotor 14 are pivotally connected to the cross bars 22, 23, any radial adjustment of the rods by means of nuts bearing on the inner lugs 25 being transmitted to the grinding bars 16 through the cross bars 22, 23, brackets 21 and pressure bands 18. In a modification, Fig. 6, the radial movement of the rods 24 is effected by the links 27 which are connected to an internally threaded member 28 threaded on a spindle 29 which, on engagement of the pins 32 and disc holes 31, is rotated by the handwheel 35. In a further embodiment the nut adjustment 25, 26 is retained as a device for locking the rods in any desired position, but the rods are moved radially by hydraulic pressure acting upon two opposed rams located in a cylinder mounted axially within the hub of the rotor 14. Specification 636,829 is referred to.
Patent GB-1585730-A (GB)
Title: Gas-fuelled lighter
IPC: F23Q2/40
Filed: 1978-03-31
Abstract: The lighter comprises a cap (12), a single elastic locking system (21) which locks the cap in the open and closed positions and consists of a link (16) hinged to the cap and of a spring (24) pushing against the lighter body, and a valve (34) which opens or closes the circuit of the gas and is acted on directly by said link. <IMAGE>
Patent GB-1390553-A (GB)
Title: Dental unit
IPC: A61G15/14
Filed: 1972-03-20
Abstract: 1390553 Dental stands PENNWALT CORP 20 March 1972 [23 March 1971] 12832/ 72 Heading A5R [Also in Divisions E2 and F2] A dental unit comprises a base member 18 which supports a fluid and/or electrical supply system 12 for dental handpieces and an evacuation system 14 for remaining fluids, and a vertical post 20 partly within and extending from the base 18 and carrying a rotatable horizontal arm assembly 22, on which a tray 26 is rotatably mounted so that when retracted, the tray, at least in part, is disposed above the base 18. The evacuation system 14 is rotatable about a vertical axis on the base for adjusting its position and includes a saliva extractor (360) Figure 18B (not shown) and other evacuation instruments (358, 372), and interchangeably mounted on either of two opposite sides as desired, a cup filler/cuspider assembly 30. The components of the supply system are arranged in two modules 32, 38 hinged on the upright. so that the interior of the upright may be exposed for servicing. The supply system 12 when actuated by a foot control unit controls the supply of compressed air and water to dental handpieces (282, 284, 286) Figure 18A (not shown) and to the evacuation system 14 for operating venturis (364, 374, 392) Figure 18B (not shown) connected to the evacuation instruments and the cuspider. The post 20 is telescopically adjustable relative to an upright 16 in which it is guided by roller bearings (98, 100) Figure 10 (not shown) at least one of which is adjustable. A detent plate (88) Figure 11 (not shown) maintains the post in adjusted position and is releasable for lowering the post by a plunger (92) Figure 4 (not shown) operated by a pistoncylinder construction (90) on actuation of a switch 120 on the tray. The cant of the post may be adjusted by screws (116) acting on the bearing unit. A pair of rotatably interconnected arms (23, 25) are connected for rotation at the top of the post in an arm slightly less than 360. The connections between the arms and between the arms and the tray are such that they each permit a relative rotation of slightly less than 720. A dental handpiece holder 28 Figure 16 is movable on the tray through 90 about a vertical axis. Each handpiece is supported by a hanger 176, Figure 16, pivotal on the holder 28 against a spring 184. On removal of the handpiece, the hanger is pivoted upwardly by the spring 184 to abut a plunger 18F which causes operation of a valve (242) Figs. 18A-18C (not shown) permitting the supply of air which may be lubricated to the handpiece. The hanger may be latched in a downwardly pivoted position to prevent the operation of the plunger 188 when the handpiece is removed. The fluid and electrical systems are controlled by a foot control and may be selectively connected to operate the dental unit or a separate tooth cleaning (prophylaxis) unit by a selector switch (418) Figure 19 (not shown). A gas burner (50) Fig. 18A (not shown) may be included.
Patent GB-543893-A (GB)
Title: Improvements in or relating to locks
IPC: E05B15/10
Filed: 1940-08-12
Abstract: 543,893. Locks. TIBBLES, H. J., and RELY-ABELL BURGLAR & FIRE ALARM CO., Ltd. Aug. 12, 1940, No. 12884. [Class 44] In order to give a long throw to a bolt 9 operated by a revolving barrel lock a pinion 3 on the barrel 4 engages a sliding rack 2, movement of which is transmitted to the bolt through a pair of coaxial pinions 5, 6 respectively engaging rack 2 and a rack 8 on the bolt. The rack 2 may be wide enough to provide separate tracks for the pinions 3, 5 or separate teeth may be provided. The barrel lock screws adjustably into the casing 1. According to the Provisional Specification a locking pin may be provided engaging a groove 7 in the barrel casing to retain it in adjusted position, and the pinion 3 may directly engage the rack on the bolt, rack 2 and pinions 5, 6 being omitted.
Patent GB-844599-A (GB)
Title: Improvements relating to baffle devices in the fuel tanks of internal combustion engines
IPC: B60K15/077
Filed: 1959-04-16
Abstract: 844,599. Tanks. DAIMLER-BENZ A.G. April 16, 1959 [April 18, 1958], No. 12979/59. Class 69 (1). A fuel tank baffle, for damming up an adequate amount of fuel for an I.C. engine when acceleration forces are applied to a motor vehicle so as to cause a displacement of fuel in the tank, comprises a housing 12 set flush upon the bottom 11 of the tank and surrounding the intake end 13 of the fuel feed pipe, the housing consisting of inner and outer walls, the outer wall being a closed wall, except for an inlet aperture 18<SP>1</SP> opening into an annular passage limited by the housing walls and leading into the interior 12<SP>1</SP> of the housing. In a modification shown in Figs. 3 and 4 the housing consists of two pot-shaped parts 101, 102 which are flattened and welded together at 103. An aperture 104 is formed in the outer housing 101 and an aperture 106 is formed in the inner housing 102. Fuel flows from the interior of the tank through the aperture 104 into an annular passage 105 and through the aperture 106 into the inner housing 102. The fuel overflowing from an injection pump is returned into the fuel tank by a return pipe 141 (Fig. 1) or 1141 (Fig. 3) which discharges into the interior of the housing. A deflector 16 (Fig. 1) or 116 (Fig. 4) extends towards the fuel feed pipe. A strainer 117 (Fig. 3) surrounds the end 113 of the feed pipe 113<SP>1</SP> and is provided with a lip seal which embraces the feed pipe. A holder 108 supports the end 113.
Patent GB-1204843-A (GB)
Title: Improvements in or relating to heatable mirrors, for example for motor vehicles
IPC: H05B3/84
Filed: 1969-03-12
Abstract: 1,204,843. Control systems for electrically heated mirrors. WESTFALISCHE METALL INDUSTRIE K.G. HUECK & CO. 12 March, 1969 [14 March, 1968], No.13108/69. Heading H2H. An electrically heated mirror for a motor vehicle comprises a heating element 1 energized from a source 30 by way of a relay 5 provided with self holding contacts 7, the temperature of the glass of the mirror being sensed by a temperature responsive switch 6, 8 so that, when the glass is free of icing or clouding, the switch 6, 8 operates to de-energize the heating element 1. Energization of the element 1 is initiated by means of a push-button switch 4 which switch may mechanically co-operate with the selfholding contacts 7. The switch 6, 8 may comprise a thermocouple or bimetallic device. If desired a second heating element may be associated with the mirror to maintain the heating of the mirror after the first element has been switched off. This second heating element has a low power rating and is energized by way of a second relay provided with self-holding contacts and a contact on the first relay.
Patent GB-1013564-A (GB)
Title: A process for the production of aliphatic ketones
IPC: C07C49/04
Filed: 1962-04-05
Abstract: Ketones of formula R(R1)CH.CO.R2, where R, R1 and R2 are alkyl groups, are prepared by reacting an olefin of formula R(R1)C = C(R2)H with chlorine, bromine or iodine at elevated temperature in the presence of water.  The reaction medium may also contain a water-soluble halide, e.g. an alkali metal halide, and optionally, the corresponding hydrogen halide. Indicated molar ratios of water to halogen are in the range 300 : 1 to 50 : 1 and the reaction mixture is usually boiled under reflux for 1-10 hours.  The preferred starting material is 2-methylpentene-2. Specification 766,848 is referred to.
Patent GB-131568-A (GB)
IPC: G01B3/18
Abstract: 131,568. Watkins, A. April 17, 1919. Scales.-The reading of the gauge is expressed as an octaval or decimal fraction, each figure of which is taken directly from a separate scale. In the form shown for reading in octavals, the sorewec spindle a has a pitch of 32 and the index line A is divided into eights of an inch. The thimble edge scale C is divided into sixteen parts numbered in two series of 0 to 8. The vernier scale B has eight lines parallel to the index line, and oblique lines g are drawn as shown from each. graduation on the line A to a point on the eighth line opposite the next graduation. To read a measurement, the first figure is taken from the line A, the second from the line B, the third from the scale C, and, if a fourth is required, it is given by the ordinary use of the horizontal lines of scales B as a vernier scale in conjunction with the scale C. The reading in the example shown is 520. The two series of figures on scale C are differentiated by one line j or a pair of parallel lines i at the side. The body of the gauge has reference tables on both sides, giving the octaval equivalents of fractions with denominator 16, 32, or 64.
Patent GB-870411-A (GB)
Title: Improvements in and relating to injection moulding of plastic materials
Inventor: POYNER WILLIAM FRANCIS
IPC: B29C45/76
Filed: 1959-04-17
Abstract: 870,411. Injection-moulding machines. FOSTER YATES & THOM Ltd. April 1, 1960 [April 17, 1959], No. 13200/59. Class 87(2). An injection-moulding machine comprises sensing means responsive to the pressure of the plastic material fed to the mould and arranged to stop operation of the injection cylinder when the or each cavity is filled under pressure insufficient to cause flash, timing means for restarting operation of the cylinder after a predetermined interval and for a predetermined time and a cushioning device adapted to absorb a portion of the cylinder output. Plastic material is injected through channels 5 in the head 4 of a screw 3 from a cylinder 2 into an injection head 1 comprising blocks 6, 7 which cooperate to form a sprue passage 15. Nozzles 10 in block 7 communicate with nipples 11 leading to cavities in mould 12 to connect them with passage 15 which has a bore 16 at one end closed by a piston 18. The head 19 of piston 18 is engaged by a spindle 24 loaded by spring 27 to an extent adjustable by plug 22 and indicated by sleeve 23. When some moulding material enters bore 16, spindle 24 actuates microswitch 29 and stops screw 3. To avoid sinking of material a further injection at a higher pressure is then performed under the control of a timing device, Fig. 4 (not shown). The spindle 24 moves leftwards after actuating the microswitch so that material is absorbed while the screw 3 is brought to rest.
Patent GB-1457407-A (GB)
Title: Playback apparatus with speed correctionsystem
IPC: G11B3/10
Filed: 1973-03-20
Abstract: 1457407 Automatic control of speed RCA CORPORATION 19 March 1974 [20 March 1973]  13265/73 Heading G3R A speed-control system for video disc playback apparatus uses (i) a "low frequency" speed correction system 15 maintaining the average speed (as defined below) between the disc and a pick-up stylus 12 at a pre-set value and (ii) a "high frequency" speed correction system 20 that varies the position of the stylus with respect to the disc so as to maintain the instantaneous relative speed between them at the pre-set value. Signals in the pick-up playback signal are used to delay the operation of system 20 relative to the initiation of system 15. The average velocity is said to be the speed with high frequency errors averaged out. As shown, system 15 comprises a motor 13 tending to drive the disc overspeed and a brake 17, to control the disc speed to the pre-set value and energized according to the error between the average frequency of horizontal sync. signals in the playback signal and a desired frequency. After switching on, and to allow for initial positioning of the pick-up, system 15 is not energized until the first vertical sync. signal is received following a time delay corresponding to four horizontal sync. signals. After a further delay during which system 15 stabilizes the average disc speed; the system 20 is energized to afford control of the instantaneous disc speed. Details of the sync. separating circuit 21, and the circuit 76, that switches on the speedcontrol systems 15, 20 are given in Fig. 2 and 3 respectively (not shown). The pick-up 12 may capacitively sense a spiral groove on the disc.
Patent GB-133081-A (GB)
IPC: H04B1/16
Abstract: 133,081. Fessenden, R. A. May 21, 1917, [Convention date]. Subaqueous audible signals. - Low-frequency compressional impulses, particularly those emitted by submarines, are detected by converting the compressional impulses into electrical impulses, which are rectified and observed with a directcurrent indicator. As described, the impulses are received and converted by an oscillator 11 of the type described in Specification 18766/13, the electrical impulses being rectified by a commutator 14 of known type, and the rectified current observed with a micro-ammeter 23. The commutator is driven by a motor 24, the speed of which is regulated by a field rheostat 26. The frequency of the impulses may be determined from the speed giving a steady reading.
Patent GB-125624-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
Inventor: RICARDO HARRY RALPH
IPC: C10L3/02
Filed: 1916-09-21
Abstract: 125,624. Ricardo, H. R. Sept. 21, 1916. Four-stroke-cycle engines; materials, actuating. -In a four-stroke-cycle super-compression engine, the main charge is supplemented by an auxiliary charge of oxygen, hydrogen, or acetylene, with or without an inert gas such as cooled products of combustion. When applied to an airship, the engine works normally with an auxiliary charge of air, hydrogen being used when it is released from the envelope, and the fuel supply for the main charge being controlled accordingly. The auxiliary charges may be passed through a cooler on their way from the pump to the working cylinder.
Patent GB-311403-A (GB)
Title: Improvements in and relating to dental outfits
IPC: A45D44/18
Filed: 1929-04-30
Abstract: 311,403. Chaussade, M. May 11, 1928, [Convention date]. Boxes combined with cups; fittings, internal.- A teeth-cleaning outfit comprises in combination a syringe b, Fig. 4, for dentifrice, removably supported in a member a provided with sterilizing lozenges x, an outer casing e, Fig. 1, for the member a, constituting a rinsing cup, and a tight. fitting closure f for the casing, provided with a sleeve g having resilient holders h for brushes y. The tops of the brushes are held in orifices g<4> in a disc g<1> attached to the sleeve g. Sterilizing lozenges may also be placed in the cap g<3> of the closure f.
Patent GB-134819-A (GB)
IPC: A61F11/00
Abstract: 134,819. Riebe-Kugellager-und Werkzeugfabrik Ges. Nov. 5, 1918, [Convention date]. Tuning. - Apparatus for testing a person's memory and judgment of the tone and volume cf sound comprises a tuning-fork 2 kept in vibration bv an electro-magnet, the coil 7 of which may be adjusted relatively to the core 10 so as to vary the amplitude of the vibrations produced, and fitted with a damper 3 having adjustable jaws 3<a> in contact with the arms of the fork so as to vary their effective length and the pitch of the note produced. The instrument is set working, and one or both the adjustments having been altered, the person to be examined is required to re-adjust the instrument to give the original tone and volume of sound.
Patent GB-240408-A (GB)
Title: Arrangement for alternately grinding between dead centres and grinding internally
IPC: B23B3/04
Filed: 1925-05-23
Abstract: 240,408. Loewe & Co. Akt.-Ges. L. Sept. 25, 1924, [Convention datej. Work-holders.-A work headstock for a grinding-machine has means thereon whereby the work either may be driven on fixed centres or may be carried by a chuck, for internal grinding. The drive is taken from a shaft 1, through gearing 2, 3, 5, 6, 7, 9, to a set of gears rotatable on a fixed shaft 16, and in mesh with the set of gears are corresponding gears which, by means of a draw key 11, may be clutched to, and rotate, a shaft 12 carrying at one end a chuck. At the other end of the shaft 12 is a gear 13 driving a gear 14 formed as a driving disc for work mounted upon a centre 15 carried by the shaft 16, the gear 14 being rotatable on the shaft 16. In operation, for internal work, the headstock is positioned as shown, while for grinding work on centres the headstock is turned through 180‹ about a vertical axis and clamped by screws 17.
Patent GB-119090-A (GB)
Title: Improvements in Pumps.
Inventor: THOMPSON NELSON WAMSLEY
IPC: F04B1/02
Filed: 1917-09-20
Abstract: 119,090. Thompson, N. W. Sept. 20, 1917. Pumps for hot liquids; liquid-piston pumps; valves, arrangement of; valves at distance from pump.-Pumps for hot liquids &c. comprise one or two cylinders 15 connected at the ends to pipes 24, 27 containing liquid and provided with cooling means 30 and connected to a valve box 32, containing suction and delivery valves 42. The valves are at a higher level than part of the inclined pipes 24, 27. The suction valves are arranged below and the delivery valves above a passage 31 to which the pipe 24 or 27 is connected. The delivery valves are enclosed in a pressure chamber 35 provided with a flanged outlet 45, and the suction valves are enclosed in a chamber 36 provided with a flanged inlet 49, so that all the pressure chambers can be connected to form a pressure manifold with an outlet pipe 48, and all the suction chambers to form a suction manifold with inlet pipes 52.