baber/WOPTO huggingface dataset:
Patent GB-687785-A (GB)
Title: Improvements in and relating to domestic washing and like machines
IPC: D06F17/12
Filed: 1950-05-03
Abstract: 687,785. Washing-machines. PROCTOR, R. H., and LUMLEY, H. April 11. 1951. [May 3, 1950] No. 10975/50. Class 138 (ii). In a washing-machine wherein the clothes and washing liquid are agitated by means of compressed air, the washing compartment comprises a curved wall 4 located between spaced side walls, and deflecting means spaced from the curved wall and forming a chamber having inlet and outlet means for compressed air which is directed by the deflecting means along the wall to set up a rotary circulation of the liquid. The deflecting means may comprise a curved baffle plate 11 detachably secured in position by clip means 12, 13, the upper margin of the plate 11 being provided with perforations or slots 14 for the air. Air is supplied to the inlet 7 through a union 10 and conduit 8 provided at its lower end with an outlet cock 9. The washing compartment is closed at the top by a curved baffle plate 4a, having a straight portion 4b forming an inlet 6 for the clothes. A door 15 which is preferably transparent is slidable in guides 16. Compressed air may be supplied by a vacuum cleaner, or by a compressor or pump mounted on the machine.
Patent GB-857464-A (GB)
Title: Mechanical position to frequency converter
IPC: H02M7/5383
Filed: 1957-04-04
Abstract: 857,464. Position-measuring devices. KOLLSMAN INSTRUMENT CORPORATION. April 4, 1957 [Nov. 7, 1956], No. 11013/57. Class 40 (1). [Also in Groups XXXV, XXXIX and XL (c)] The position of a body is expressed in terms of a frequency by varying the cross-sectional area of the magnetic core of a transductor, thereby altering the value of current in the control windings at which the core saturates; the current is switched between two control windings so that the frequency of switching depends on the saturation flux value. In Fig. 1, the transistors 26 and 28 form a multivibrator passing current alternately through the windings 14 and 16 to saturate the core 12 alternately in the two directions, 18 and 20 being the feed-back windings which switch the circuit from one state to the other. The circuit is normally self-starting but if necessary a priming pulse can be injected at 33. The output is taken from winding 22. The core 12 is in the form of a ribbon (Fig. 3) wound together with the windings over a high-permeability fixed core 34, which is energized by a D.C. winding 36 or (not shown) a permanent magnet. The body whose position is to be measured is attached to a rod 40 whose axial position determines the coupling between cores 12 and 34 via the movable core 35. By suitable shaping of the cores 34 and 35 (Figs. 6 and 7, not shown), any desired law can be produced between the linear movement of the rod 40 and the output frequency. The transistors can be replaced by valves.
Patent GB-1001263-A (GB)
Title: Improvements in or relating to a device for the manufacture of coated sheet materialor plastic sheet
Inventor: BROWN NORMAN HENRY
IPC: B05D1/28
Filed: 1961-03-27
Abstract: 1,001,263. Web coating apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 14, 1962 [March 27, 1961], No. 11050/61. Heading D1L. A device for applying a coating composition to sheet materials consists of a coating head in the form of an endless carrier which conveys the coating composition and applies it to the sheet material, the surface of endless carrier being discontinuous and comprising a multiplicity of rods or bars. As shown trough 10 contains coating composition 11 and a coating head 12 rotates partly submerged in the coating composition. Sheet material 13 is unwound from a roll 14 and is brought into contact with the coating head at 15. The sheet then passes to a heating zone 17 where the coating composition is gelled and the final product is wound into roll 18. The coating head 12 may be formed as a series of spaced rods supported on end plates or the surface may be formed from metal mesh of rectangular, diamond &c. pattern. The coating head may also be in the form of an endless band supported on rollers. Specifications 788,547 and 895,433 are referred to.
Patent GB-541427-A (GB)
Title: Improvements in directional aerial arrays
IPC: G01S3/08
Filed: 1940-06-29
Abstract: 541,427. Directive wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 29, 1940, No. 11057. Convention date, June 29, 1939. [Class 40 (v)] The inclination to the vertical of incident radiation is measured, without error due to reflection from the ground, or radiation having zero amplitude in a plane adjustably inclined to the verticle is emitted, by means of four parallel dipoles A, B, C, D which are connected by pairs L. M, N of crossed conductors and are located at the angles of a parallelogram whose sides are each half a wave-length long. The parallelogram lies in a vertical plane and is deformable. It is shown that if radiation is incident in a direction P parallel to the arms AB, CD, it produces a null effect on a receiver R connected as shown, and also does the radiation reflected in a direction O from the surface of the earth. In order that the null position may be searched for, the parallelogram may comprise a linkwork having one angle D fixed in space which the opposite angle A slides vertically against a scale. The arms of the parallelogram may be made telescopic to permit of adjustment for different wave-lengths.
Patent GB-1043494-A (GB)
Title: Improvements in or relating to multi-stage centrifugal pumps
Inventor: SOLDAN JIRI
IPC: F04D1/06
Filed: 1965-03-16
Abstract: 1,043,494. Centrifugal pumps. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA NARODNI PODNIK. March 16, 1965, No. 11068/65. Heading F1C. In a multi-stage centrifugal pump with the impellers mounted on a common driving shaft 1, the firststage impeller 2 is not keyed to the shaft but is journalled on the shaft through a plain bearing and driven from the shaft at a reduced speed through gearing 14, 16, 18, 13. Gear 13 is formed on a hollow shaft 3 journalled on two ball bearings and coupled at 19 to the extended hub of the impeller 2. Pumped liquid, tapped after the first stage through grooves 4 in a spacer, passes through the impeller bearing to cool and lubricate it and returns to the suction chamber 6 through holes 5. Any liquid leaking past a packing 8 between the shafts 1, 3 is discharged through holes 11. Spaces A, B are filled with cooling water.
Patent GB-1121887-A (GB)
Title: Improvements in door catches
Inventor: JACQUES DAVID
IPC: E05C19/06
Filed: 1966-03-14
Abstract: 1,121,887. Push-pull catches. METROPOLITAN PLASTICS Ltd. 7 March, 1967 [14 March, 1966], No. 11068/66. Heading E2A. A door catch comprises a stud member 1 and a socket member 2 for attachment respectively to a door and a door jamb, the members being made from a solid plastics substance of a resilient character and a stud 3 of the stud member projecting integrally from a flat securing plate 4 with the stud axis normal to the plate and having a radiused lead-on nose 5 at its end portion extending from a body formed with an annular waist 6 of concave section, there being a diametral split 7 down the stud and the socket member having a sleeve 8 formed integrally on a securing plate 9 disposed parallel to the axis of said sleeve which latter has an internal diameter sufficiently large to receive the stud the sleeve having an entry end portion 10 for the reception of the stud and inside the sleeve there being flange means 11 lying at right angles to the axis of the sleeve at such a distance from the entry end whereby the flange means can grip the annular waist of the stud.
Patent GB-1184832-A (GB)
Title: Improvements relating to Battery Charging Apparatus
Inventor: AYLOTT JOHN
IPC: H02J7/14
Filed: 1967-03-09
Abstract: 1,184,832. Vehicle supply systems. WIPAC DEVELOPMENT Ltd. 7 May, 1968 [9 March, 1967], No. 11204/67. Heading H2H. Indicating apparatus 14, e.g. on a motor cycle, is connected between an alternator 11 and a battery 13 to show when the alternator voltage is below the charging level. A potential divider 18, 19 is connected in parallel with a lamp 15 and a transistor 16 across the battery terminals, and the midpoint of the divider is connected to the base of the transistor so that the latter tends to be biased into a conducting state, illuminating the lamp 15. The output of the alternator 11 is also fed to the transistor base through a resistor 20, and when this output builds up to a predetermined level, the transistor is rendered non-conducting and the lamp 15 is extinguished. The battery is charged from the alternator 11 through a conventional full-wave rectifier bridge (not shown).
Patent GB-1491560-A (GB)
Title: Reagent composition and method for determination of glycerol concentrations
IPC: C12Q1/48
Filed: 1975-03-18
Abstract: 1491560 Determination of glycerol DOW CHEMICAL CO 18 March 1975 [20 March 1974] 11212/75 Heading G1B A reagent composition for use in determining glycerol in biological fluids, or produced for example on hydrolysis of triglycerides as in Specification 1491559, comprises from 0À0009 to 0À074 molar proportions of magnesium ion source, from 5 to 30 pbw of adenosine-5-triphosphate, from 20 to 125 pbw NAD, from 0À5 to 5 pbw of a colourless tetrazolium dye which in an electron carrier catalyzed reaction forms a coloured reaction product with NADH, from 1000 to 10,000 I.U. glycerol kinase, from 5000 to 280,000 I.U. glycerol-1-phosphate dehydrogenase and from 1600 to 10,000 I.U. diaphorase, optionally dissolved in an aqueous buffer pH, 6À8 to 8À9. The composition may be prepared as a lyophilized concentrate.
Patent GB-111265-A (GB)
Title: Improvements in Electric Motor Control Systems.
IPC: H02P3/08
Filed: 1917-08-03
Abstract: 111,265. British Westinghouse Electric & Manufacturing Co., ( Westing- house Electric & Manufacturing Co.). Aug. 3, 1917. Systems for continuous-current motors only; systems for controlling reciprocating motion.-In a system of control for a motor 3 operating a planer or similar machine, two electro-magnetically operated reversing-switches 9, 10 are so arranged that the operation of one provides for a shunt circuit round the winding of the other being completed when the appropriate push button is depressed. A switch 6 controls the resistance 5 and carries an auxiliary contact 8 in the holding circuit of each reversing-switch. To start the motor in the forward direction, the button 15 is depressed, and current then flows from lead 1 through coil 11, button 15, lower contacts of switch 10 to lead 2. The coil 11 closes the switch 9 to complete the motor circuit and, when the motor speed reaches a predetermined value, the switch 6 rises to short circuit the starting resistance 5. A holding circuit for the switch 9 is established through the contacts 13, 8. With these connexions, the switch 10 cannot be closed by depression of the button 16 as the button and the coil 12 are shunted by the lead 18 and the closed contacts of the switch 9. Similar connexions are made by the switch 10 when the motor runs in the reverse direction. In a modification, interlocking contacts in parallel with the buttons 15, 16 are attached to the switch 6 and are employed instead of the contacts 13, 14. The push button 17 opens the circuit of the coil 7 of the switch 6 to stop the motor.
Patent GB-950901-A (GB)
Title: Improvements in or relating to driers
Inventor: PLUMB GEOFFREY RICHARD
IPC: F26B3/30
Filed: 1961-03-28
Abstract: 950,901. Drying apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 15, 1962 [March 28, 1961], No. 11293/61. Heading F4G. A rotary drying table e.g. for drying radioactive and/or toxic material comprises an annular turntable plate 101, Fig. 2, having an outer dished part 103a which is rotated by a shaft 107 and gear-box 113 by a motor (not shown) and which is mounted between stationary upper and lower casings 105, 106 secured together at their edges by bolts 136, Fig. 1B. The material is dried by a series of infra-red heaters 123 mounted in windows 125 of the top casing 105 and electrically-heated mats 124, 129 having handles 165, 130 secured between radially mounted support webs 122, 127 of the casings 105, 106 respectively. The material is fed to the plate 101 through a feed pipe 139 extending through the casing 105 above a roller assembly 140 comprising a housing 142 and a roller 141 on a shaft 143 connected to a gear-box 146 for distributing the material over the dished part 103a. A take-off pipe 151 extends through the casing 106 and is angularly displaced from the feed pipe 139 and roller assembly 140 to which the dried material is supplied by a spring mounted plough blade carried on an arm 179 connected to a post 180 on the casing 105. The material is also diverted to the pipe 151 by twelve scraper blades 132 fitted at equal intervals around the casing 106, twelve blades 133 on the turntable 101, four scrapers 134 on the underside of the plate 101 and four scrapers 135 on the underside of the casing 105.
Patent GB-356722-A (GB)
Title: Improvements in or relating to sound recording devices
IPC: G11B3/00
Filed: 1930-04-09
Abstract: 356,722. Sound-recording apparatus. HUGUENARD, E. A., 19, Rue Dupont de l'Eure, Paris. April 9, 1930, No. 11318. [Class 40 (ii).] Comprises a sound - recording device in which the recording tool is stationary and a film or like surface is caused to vibrate in contact with the tool under the influence of the sound vibrations. A film 1 slides between a guide 2 and the lower part of a cap 4 into which the sound is led through a horn 5 to vibrate a membrane 6 which bears against the film with the interposition of a part 7. The underside of the film is engaged by. the horizontal edge 8 of a stationary tool 9 which is secured to a heatinsulating part 10 and heated by a resistance 12 to which current is led by the leads 15, 16. The sound vibrations urge the film to a varying degree towards the hot tool so as to form a record groove of constant width and varying depth. A further construction is described which is applicable to electromagnetic recording.
Patent GB-589041-A (GB)
Title: Improvements in or relating to drawbars for tractors
IPC: B60D1/42
Filed: 1944-06-14
Abstract: 589,041. Couplings for road vehicles. SPENCER, C. J. June 14, 1944, No. 11367. [Class 103 (v)] A towing attachment for a tractor comprises extension bars having parallel horizontal and vertical limbs 2, 3 and 4 joined at the base by an integral foot plate 5 and spaced at the top by stays 6. The bars are secured to the tractor axle housing and drawplate by studs and bolts at 17 and 18 respectively. The ends of the horizontal limbs 2 may be curved downwardly. The vertical limbs 3 are formed with aligned holes 7 for the reception of a pin 14 by which a drawplate 8, 9 may be mounted on the bars at various heights. The drawplate is provided with holes for the attachment of the drawn vehicle to left or right as desired.
Patent GB-893394-A (GB)
Title: Improvements in and relating to buttons
Inventor: SILVER CECIL JAMES
IPC: A44B1/24
Filed: 1960-03-31
Abstract: 893,394. Buttons. SILVER Ltd., CECIL. Jan. 30, 1961 [March 31, 1960], No. 11417/60. Class 43. A button comprises an apertured member 1 formed on one side with a central shank or boss 8 having apertures therein registering with the apertures in the member to facilitate sewing to a garment or other article and a cover member 2 adapted to receive and retain the apertured member to conceal the apertures and present a plain or ornamental outer surface. The apertured member 1 has a central aperture with two diametrically opposed apertures which register with two apertures in the boss. The outer cover member fits in a groove 10 undercut in the rim 9 of the outer member. Two clamping jaws on pivoting arms clamp the parts together, at least one jaw having a pad.
Patent GB-203292-A (GB)
Title: Improvements in regulating devices for electrical apparatus
IPC: H01H37/68
Filed: 1923-04-27
Abstract: 203,292. Aktiebolaget Birka Regulator. Sept. 1, 1922, [Convention date]. Thermal switches. - Relates to electrically operated apparatus such as cooking apparatus or an electrically driven pump in which the supply of current is regulated by one or more thermal switches the circuit to which is closed by a switch automatically operated by changes in temperature, water-level, &c. According to the invention the thermal switches are inserted in the wall plug or like member by which the apparatus is coupled to the source of current. Fig. 3 shows a plug member which may either be inserted directly into a wall socket and connected by a plug cord with the cocking vessel shown in Fig. 2, or vice versa. When the temperature reaches a predetermined point, a thermal switch 6 arranged between two bottoms of the cooking vessel bridges springs 9, 10, thus connecting contacts 25, 27 and closing a circuit through the heating coils of thermal switches 35, 31. The switch 31 then opens its contacts 28, 29, thus breaking the circuit to the heating coil 3 of the cooking vessel. The switch 35 opens and closes intermittently allowing enough current to pass to the heating coil of the switch 31 to keep that switch open. When the temperature of the cooking vessel falls, the switch 6 opens, breaking the circuit to the heating coils of switches 35, 31, which close and re-establish the circuit to the heating coil 3. The device may be adjusted to act at any temperature by rotating a member 18 which carries at its end a cam determining the position of the pivoted member 13 which carries the springs 9, 10. The switches 31, 35 are enclosed in receptacles which are either evacuated or filled with an inert gas.
Patent GB-966285-A (GB)
Title: Reading amplifier for magnetic core memory matrices
IPC: H03K5/02
Filed: 1963-03-22
Abstract: 966,285. Transistor amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. March 22, 1963 [March 23, 1962], No. 11473/63. Heading H3T. An arrangement for amplifying opposite-phase outputs of a transducer while suppressing the effects of equal phase outputs therefrom comprises two input terminals for connection across the transducer and a balanced amplifier comprising two transistorized amplifier circuits connected in push-pull, the input terminals being connected differentially to each amplifier circuit, whereby there is obtained from each an output which is proportional to the difference between the signals at the input terminals. The arrangement is more particularly intended for amplifying the output from the read-out wire of a magnetic core matrix; one end E of the wire is connected via resistor R1 to the base of one transistor Tr1 and the other end E<SP>1</SP> to a tap on the emitter circuit resistor via resistor R<SP>1</SP>2 and a D.C. blocking capacitor C<SP>1</SP>1. The end E<SP>1</SP> of the wire 1 is similarly connected to the base of the other transistor Tr2 and the end E of the wire to a tap on the emitter circuit resistor via resistor R2 and a D.C. blocking capacitor C1. The transistors are biased so as to operate in class A.
Patent GB-1161455-A (GB)
Title: Improved Signal Gating Circuit
IPC: H03K3/356
Filed: 1967-03-13
Abstract: 1,161,455. Electronic counters; shift registers. RADIO CORPORATION OF AMERICA. 13 March, 1967 [24 March, 1966], No. 11576/67. Headings G4A and G4C. [Also in Division H3] A bi-stable circuit comprises a first pair of inverter stages 30, 31 a second pair of inverter stages 32, 33, and two pairs of gates 35, 36 and 37, 38 interconnected with the inverters so that for one state of an input signal at 1, 2 the inverters 30, 31 are reciprocally coupled, and for the other state of the input signal inverters 32, 33 are reciprocally coupled. With the signal input 2 a high level " 1 " and that at input 1 a low level " 0 " gate 35 is open to cross-couple inverters 30, 31 when the signals reverse gate 38 opens to cross-couple inverters 32, 33. Assume initially input 2 is high and the output from inverter 31 is at its " 1 " state, then this is fed via gate 37 (also opened by the high input 2) to inverters 32, 33 producing a " 0 " output at 3 and a " 1 " output at 4. When the inputs reverse, gate 38 opens and the " 1 " output from 4 is fed back to the input to inverter 32 to maintain the outputs in this state. At the same time gate 36 opens feeding the " 0" from inverter 32 to the input to inverter 30, thus changing the state of inverters 30, 31 to produce a " 0 " output from 31. The next reversal of the input signal opens gate 35 to lock 30, 31 in this new state, and opens gate 37 to apply a " 0 " to the input of 32, thus reversing the state of the outputs at 3, 4. The circuit forms a divide-by-two stage and a number of them may be cascaded as a counter. As described, Fig. 1 (not shown), the gates and inverters comprise field effect transistors, and in a modification, Fig. 3 (not shown), each gate is formed by an N-type FET, in parallel with a P-type FET, the emitters being connected to opposite polarity inputs. In order to form a shift register, Fig. 5, the circuit is modified by replacing the feedback connection from inverter 32 to gate 36 by an additional input 45, and taking an additional output 46 from inverter 31.
Patent GB-498454-A (GB)
Title: Fabric measuring machine
IPC: G01B5/04
Filed: 1938-04-14
Abstract: 498,454. Measuring fabrics &c. AESCHBACH, W. E., and MEASUREGRAPH CO. April 14, 1938, No. 11598. [Class 42 (ii)] In a measuring-machine provided with measurement indicators 12, 13, price charts 14, and printing mechanism 19, which prints a measurement card when the notching cutter 27 is depressed, means are provided for preventing the printing of more than one card at the end of each measurement. The cutter 27 can only be operated at predetermined times, e.g. after each one-eighth yard measured. The measuring roller 4 is geared to a disc 29 having notches 31 at intervals corresponding to, say, one-eighth yard measurements. A sliding bar 32 connected to a lever 33 can be pushed into any notch 31 by a spring 34 unless this lever is locked by lever 41 pivoted at 43 or by a catch 59 pivoted at 58 and engaging under the pin 36 in the lever 33. When the cutter 27 is depressed, a lever 38 and a lever 41 which has a pin-and-slot connection therewith are freed, and if the bar 32 is opposite a notch 31, the spring 34 moves the lever 33 and in so doing depresses the arms 44 and 50 of two levers pivoted respectively at 43, 49. The opposite end 42 of the lever 44 is thus moved against the spring 45 above the pin 46 on the cutter 27, allowing the cutter to be depressed fully. The pin 46 passing beneath the arm 42 moves the lever 44 further and also the lever 48 so that its projection 51 passes to the other side of the spring catch 53. A bent projection 56 near the top of the lever 48 now engages the catch 59 and if the knife 27 be now raised the lever 33 will lift and its pin 36 be caught by the catch 59. The lever 42 will then return to the position shown in Fig. 3 and further operation of the knife will not be possible until the indicators &c. have been returned to zero. When the resetting button 24 is depressed, it moves a lever 73, the inclined end 75 of which engages a second projection 54 at the top of the lever 48 and returns the lever 48 to its original position at the same time freeing the catch 59 from the pin 36 of lever 33. The catch 59 is also withdrawn when the indicator reading is zero by an arm 63 on a vertical shaft 64 which carries another arm 69 arranged to be displaced by an arm 70 on the shaft 72 of the indicator 12.when the latter is at the zero position.