baber/WOPTO huggingface dataset:
Patent GB-674279-A (GB)
Title: Improvements in or relating to a method of bonding sintered powdered metal friction material to a steel backing plate
IPC: B22F7/04
Filed: 1950-05-03
Abstract: 674,279. Powder metallurgy. RAYBESTOS CO. May 3, 1950 [May 27, 1949], No. 10901/50. Classes 83 (ii) and 83 (iv). A method of bonding sintered friction material to a steel backing-plate comprises compressing a layer of powdered metal including 50-80 per cent iron and a relatively soft, lowmelting-point metal over which is spread a layer of the powdered constituents of bronze, so as to form an integral wafer, placing the wafer on a copper-plated steel backing member with the bronze layer in contact with the copper and then subjecting the composite sheet to pressure and to a sintering temperature. The sintering temperature is between 1400‹ and 1800‹ F. and preferably does not exceed 1500‹ F. The iron powder is mixed with copper or with zinc and tin and if desired with lead or graphite. The bronze powder layer of from 0.002 to 0.015 inch thick comprises 80-95 per cent copper, 0-15 per cent lead and 3-15 per cent tin. If desired, nickel may be substituted for the copper in the bronze powder. This mass is compressed at 10,000 to 25,000 pounds per square inch and while being sintered is subjected to a pressure of 100 to 500 pounds per square inch.
Patent GB-903458-A (GB)
Title: Binaural phonograph pickup
IPC: H04R17/08
Filed: 1959-04-01
Abstract: 903,458. Stereophonic pick-ups. ERIE RESISTOR CORPORATION. April 1, 1959 [April 23, 1958], No. 10991/59. Addition to 823,241. Class 40 (4). A piezo-electric rod transducer of cruciform cross-section with electrodes coated in the corners is polarized as shown in Fig. 4 or Fig. 5. In Fig. 5 the polarization is produced by connecting a potential across the commoned pairs of electrodes 28, 30 and 29, 31, while in Fig. 4, this step is also taken with the commoned pairs of electrodes 7, 9 and 8, 10, but a reverse potential is subsequently applied between electrodes 7 and 10. The transducer of Fig. 4 is shown applied to reproduction of 45-45 recordings with a stylus 5, flexure along the arrow 17 producing supporting voltages between earthed electrodes 8, 10 and electrode 7 but producing cancelling voltages on electrode 9 which remains at earth; while flexure along the arrow 18 leaves electrode 7 at earth and produces a signal on electrode 9. The transducer of Fig. 5 is also applied to 45-45 recordings, flexure along the arrow 17 producing voltage between electrodes 29 and 30 and flexure along the arrow 18 producing voltage between electrodes 31 and 30. Electrode 28 is disconnected. If one of the side electrodes 29 or 31 is earthed and signal voltages are taken from the top and bottom electrodes 28 and 30, vertical flexure of the transducer due to turntable rumble produces voltages in each channel which are out of phase and can be trapped by a low pass shunt between the electrodes 28 and 30. In the arrangement shown in Fig. 5 rumble may be reduced by connecting a lowpass filter between the electrodes 28 and 30.
Patent GB-678977-A (GB)
Title: Improved braking mechanism
Inventor: CHARLES MAXWELL ROSCOE DE BUIR
IPC: B60T7/20
Filed: 1950-05-04
Abstract: 678,977. Brakes. BERKELEY COACHWORK, Ltd. May 4, 1951 [May 4, 1950], No. 11060/50. Class 103 (i). Means to operate the surge brake on a trailer vehicle comprises a spring-loaded plunger 3<SP>1</SP> which bears on a finger 13 secured to a member 14 rockably carried in connector plates 15 and a second finger 17 secured to the member 14 to which a brake operating rod 20 is secured. Thus over-run of the trailer causes the fingers 13 and 17 to be rotated clockwise thereby applying the trailer brakes. To provide for hand-operation of the trailer brakes the connector plates 15 are themselves pivotally mounted on stub shafts 16 integral with plates 12 bolted to the tow bar housing. Thus raising the lever 23 causes counterclockwise rotation of the plates 15 and of the member 14 about the pins 16 and since the end of the finger 13 abuts the end of the plunger 3<SP>1</SP> the brake operating rod 20 is moved forwardly to apply the brake.
Patent GB-947755-A (GB)
Title: Rotary drum dryer
IPC: F26B13/18
Filed: 1962-03-22
Abstract: 947,755. Drying cylinders. RICE BARTON CORPORATION. March 22, 1962 [March 24, 1961], No. 11068/62. Heading F4G. [Also in Division F2] A rotary drying drum 20, Fig. 2, is formed of cast circular sections 20a ... 20e secured together as by a kerf therebetween in which is formed a weld of the same material as the drum rim so as to provide a rim through which runs a series of longitudinal cored ducts 22 for steam which passes thereinto from a conduit 24, pipes 28 into conduits 30 in the end spokes 32 of the drum, and a circular header duct 34. The ducts 22 have linings (not shown) of copper or other material of high heat transfer efficiency and are formed in each rim parallel to the axis of the drum and spaced about the circumference. Condensate is collected in a circular duct 36 at the other end of the drum for removal through siphons communicating through pipes 40 with a condensate line 43 concentrically mounted within the conduit 24. In another embodiment the circular duct 34, Fig. 9, has an adjacent circumferential steam inlet conduit 50 and the duct 36, Fig. 10, a steam inlet conduit 52. Ducts 34, 36 and conduits 50, 52 are divided into quadrants, the quadrants of the conduits 50, 52 being fed from four steam lines 30 and 50. Each quadrant of the conduits also is connected by an aperture 56, 60 respectively to the ducts 22 for passage of the steam therethrough to a corresponding quadrant of the ducts 36, 34 which in turn are connected to an exhaust line 42, by four outlet pipes 58 and 62. The steam therefore travels from both ends of the drum in alternate ducts 22 to provide an equal transfer of heat to the peripheral surface of the drum.
Patent GB-879691-A (GB)
Title: Stabilisation of ethylene polymers
IPC: C08K5/375
Filed: 1958-04-08
Abstract: Linear polyethylene having a density of at least 0,93 or a copolymer of ethylene having a degree of crystallinity equal thereto, is stabilized by admixing therewith a bis (dialkylphenol) sulphide.  The sulphide may be a mono- or di-sulphide and especially good are the mono- and di-sulphides of monohydric dialkylphenols in which each of the alkyl groups contains less than six carbon atoms, which have two of the positions ortho and para to the phenolic hydroxyl group.  A list of sulphides is given; the examples use 4, 41-thio-bis (6-tert.-butyl-meta-cresol).  It is preferred that the polyethylene contains up to 10% (especially 0,005%-5%) of the sulphide.  The composition may be moulded.  Specification 842,872 also is referred to.
Patent GB-183222-A (GB)
Title: Improvements in or in connection with ring spinning, ring doubling and like machines and spinning mules
IPC: D01H11/00
Filed: 1921-04-16
Abstract: 183,222. Williams, J. R. April 16, 1921. Cleaning machines.-Fluff &c. is removed from the roller beams, lappets, &c. of spinning machines by flannel pads a supported and traversed on the roller beam c by a cord b mounted on driving and tension pulleys h, j, i, k. and reciprocated by a winch handle n in the shaft m of the pulley h. The front edge of the flannel may be protected by a thin strip of metal f from catching the thread-guide wires g cf the lappets e. Alternatively, the pads may be traversed by winding the cords off one pulley on to another. The pads may be mechanically driven and automatically reversed by winding the cord over pulleys attached to gear wheels r, Fig. 6, mounted on a rocking frame w so as to engage alternately a driving-wheel s either by movement of a handle 3 or by the action of projections carried by the cords. The pads may be formed by winding the flannel on rollers, or bristles may be attached to the flannels. Reference has been directed by the Comptroller to Specification 6193/86.
Patent GB-1032717-A (GB)
Title: Improvements in kitchen utensils
IPC: A47J45/07
Filed: 1965-03-16
Abstract: 1,032,717. Detachable handles. HARNY A.B. March 16, 1965 [Dec. 17, 1964], No. 11110/65. Heading A4A. A detachable handle for a glass &c. lid for a casserole particularly when used inverted as a serving dish comprises a wire loop of chromium or nickle-plated spring steel having inturned ends to co-operate with flanges on the lid so that the lid can be lifted, a heat-insulating hand-grip 9 being provided. The handgrip is formed in upper and lower abutting parts, joined by co-operating projections and recesses and glueing or riveting, and one or each abutting face has two grooves forming channels receiving a part of the wire loop which is preferably closed by welding.
Patent GB-102466-A (GB)
Title: Improvements in or relating to Washing and Disinfecting Apparatus.
Inventor: HERBERT WALTER
IPC: D06F21/02
Filed: 1916-08-07
Abstract: 102,466. Herbert, W. Aug. 7, 1916. Washing-machines with enclosed rotary receptacles of the horizontal type with an internal rotary perforated drum described in Specification 19806/97, are provided with doors at both ends of the drum and of the casing in order that the goods may be inserted at one end and removed from the other, as is necessary when the apparatus is employed for disinfecting by the supply of steam in place of the washing-liquid. Fig. 4 shows the apparatus in plan view, the fixed cylindrical casing 1 having end doors 3, 18 and containing the drum 4, Fig. 6, mounted upon a shaft 7, which is divided by one or more partitions 6 into compartments, each of which has a door 5 at each end. For convenience in access to the doors, the driving-gear, which comprises the usual fast and loose pulleys 11, 12, 14, a threebevel reversing-gear 8, 9, 10, and a hand turning-gear 17, 15, is placed at a distance from the casing, the shaft 7 rotating within a fixed tubular sleeve 19. Inlet and outlet connexions 20 are furnished above and below for steam and liquor supply and discharge, a protecting guard may enclose the driving-mechanism, and the driving- mechanism may be placed in a different room from the machine, as shown in Fig. 4, or the machine may be built into a wall so that feeding and removal may take place in separate rooms.
Patent GB-251430-A (GB)
Title: Improvements in centrifugal moulds for casting metal pipes
IPC: B22D13/10
Filed: 1925-04-29
Abstract: 251,430. Stanton Ironworks Co., Ltd., and Lander, J. April 29, 1925. Casting - machines; moulds. - To facilitate replacement and avoid strain due to expansion the end flanges b, f of a centrifugal mould are self-centering and detachable. The flanges b, f have grooves x to engage smaller projecting rings on the ends of the body e and are retained, while allowing small variations in size, by flanges h', i', which may have a split ring n to engage a groove o in the body. The flanges b, f have grooves d for piston rings so as to make a water tight joint with a jacket surrounding the mould. The flange f carries a Pelton wheel used to rotate the mould.
Patent GB-787035-A (GB)
Title: Improvements in hearing aids
Inventor: CARLING FRANCIS ROCK
IPC: H04R25/02
Filed: 1955-04-20
Abstract: 787,035. Hearing aids. FORTIPHONE, Ltd. April 16, 1956 [April 20, 1955], No. 11453/55. Class 40 (4). A unitary construction hearing aid comprises a member for transmitting sound from an earphone to the ear of the user, said member having a lip sealing the ear canal from external sounds and also having a switch controlling the electrical system. The aid is designed for occasional use. The casing is made in two parts 11, 12, separated by a rubber sheet 17. The main body encloses a microphone 15, dry cell 13, amplifier 14, and earphone 16. An acoustic member 23, when not in use, lies in a recess and is retained by a spring detent 25. When the detent is depressed the member 23 swings about a pivot under spring action to form an acoustic path from the earphone 16 to a vertical passage 28. When the tip 32 of the member 23 is then pressed into the ear a sprung tube 31 is slid longitudinally to complete the acoustic path from the passage 28 to the ear. At the same time the end of the tube 31 engages an electrical contact 52 to complete a circuit to the amplifier. The tip 32 is made of rubber and is washable.
Patent GB-623320-A (GB)
Title: Improvements in and connected with photographic enlarging apparatus
IPC: G03B27/58
Filed: 1947-04-29
Abstract: 623,320. Photographic enlarging apparatus. BENFIELD, T. B. April 29, 1947, No. 11491. [Class 98 (i)] An enlarger is provided with (1) a negative film-holder having a hinged cover which is divided by transverse masking strips into spaces corresponding to successive exposures of the negative film and which is pressed against the film to retain it in the holder by spring fingers mounted adjacent its ends, and (2) a frame for the sensitive sheet which is sub-divided by crossing masking strips mounted on a cover hinged to said frame into rows of spaces, each row corresponding to those in the negativeholder and the said frame being movable in a stationary guide to bring successive rows of spaces beneath the enlarger head. As shown, the negative film-holder comprises a base 3 having a film strip locating channel and a cover 4, hinged to it at 5, provided with three spaced apertures, each equal to an exposure frame on the film. Leaf-springs 7 bear on the cover to hold the film against accidental movement while allowing it to be pulled forward. The frame for the sensitive sheet comprises a base 8 on which the sheet is located by pins 12, and a platen 10, hinged to the base at 11, containing three rows of three printing apertures. The frame is slidable in fixed guides 13 and can be located in each of three positions by a peg 16 on a spring arm 17 engaging in holes 15 in the base.
Patent GB-166727-A (GB)
Title: Improvements in the manufacture of disinfectants from sulphurated shale oils
Filed: 1920-04-26
Abstract: A sulphur-containing shale-oil (obtained by distillation of bituminous shales), or better, that fraction which distils below 320 DEG  C., is heated with chlorosulphonic acid until the evolution of gas ceases.  The soluble brown mass, termed "sulphothalassolic acid," thus obtained is then treated with a metallic oxide, hydroxide, or carbonate, either in the dry state or mixed with a little water; further water is then added and the colloidal solution purified by dialysis and filtration.  Sodium, potassium, and ammonium salts are mentioned, the last being termed "thalassol"; they are intended for use as disinfectants.
Patent GB-739194-A (GB)
Title: Improvements in and relating to cartons and like containers
IPC: B65D5/76
Filed: 1953-04-27
Abstract: 739,194. Dispensing measured quantities of granular materials. VOYCE, T. G. B. April 29, 1954 [April 27, 1953], No. 11552/53. Class 106 (5). A carton or like container 1, Fig. 1, comprises an internal partition 2 dividing from the main internal space of the carton a duct or passage communicating at one end 3 with the main internal space of the carton and at its other end with an outlet aperture 4 in the carton wall. The partition 2 and the container 1 may be of cardboard, the partition being provided with flaps which enable it to be secured to the carton by adhesive. Fig. 3 shows an alternative embodiment in which a partition 5 communicating with apertures 7, 10 is arranged adjacent a side wall of the carton. The apertures 4, 10 may be closed by flaps sealed to the container wall when the carton is initially filled.
Patent GB-796078-A (GB)
Title: Improvements in or relating to apparatus for contacting a liquid with another fluid
Inventor: GERHOLD CLARENCE GEORGE
IPC: B01D11/04
Filed: 1956-04-17
Abstract: 796,078. Extracts making. UNIVERSAL OIL PRODUCTS CO. April 17, 1956, No. 11617/56. Class 81 (1). [Also in Group XII] Apparatus in which two immiscible liquids of different densities, e.g. gasoline and water, are brought into intimate contact with each other has a column 10 with spaced perforated plates 14 supporting the denser liquid descending the column through the perforations of the plates and conduits 11 for the passage of the lighter liquid up the column successively through each area between two plates 14, each conduit 11 having an inner chamber 12 with an open end adjacent the bottom of the conduit and apertured at its upper end to communicate with the main part of the conduit, the cross-sectional area of the apertures being less than the cross-sectional area of the chamber and the arrangement such that the lighter liquid rising up the column passes through the chambers 12 into the conduits 11 free from entrained particles of the denser liquid. In a modification the conduit 11 is cylindrical and the chamber 12 is of annular cross-section and defined between the inner wall of the conduit and a central pipe, which is apertured at its lower end, in this apparatus the lighter liquid passes up the column through the perforations of the plates and the denser liquid descends the column through the conduits.
Patent GB-977914-A (GB)
Title: Improvements in or relating to transistor gating circuits
Inventor: LAMBOURN EDWARD HARRY
IPC: H03K17/60
Filed: 1962-03-27
Abstract: 977,914. Transistor gating circuits. STANDARD TELEPHONES & CABLES Ltd. March 22, 1963 [March 27, 1962], No. 11628/62. Heading H3T. In a transistor gating circuit in which a signal path includes the emitter collector path or paths of one or more transistors, blocked or unblocked by a signal applied to the transistor base or bases, the controlling and controlled inputs to the gate are isolated from each other during the period when the transistor or transistors are blocked by auxiliary semi-conductor devices connected in the circuit in which the base control current flows. A symmetrical transistor TM connected between input and output terminals A, B is caused to conduct by an input pulse applied to its base via transformer P so that the gate is opened, during which period capacitor C is charged by the base current Ib. When the input pulse ceases transistor TM is blocked by the voltage Eo developed across capacitor C and the gate is closed. In order that the base circuit does not connect with the gate terminals and is also completely floating such that a minimum holdoff voltage E 0  is required auxiliary transistors TA1, TA2 are connected as shown so as to be normally held non-conducting but rendered conducting by the input pulse at P. Thus at the end of the input pulse the base of transistor TM is disconnected from the collector and emitter of TM. Since capacitor C is now disconnected from terminals A, B the voltage E 0  is completely floating and may be a small valve. Diodes D1, D2 allow any hole storage current remaining to flow after cessation of the input pulse so that transistor TM becomes non- conducting without any delay. The circuit of Fig. 5 shows how the symmetrical transistor TM of Fig. 4 may be replaced by two non- symmetrical transistors TM1, TM2. In the circuit of Fig. 6 (not shown) the two non- symmetrical transistors TM1, TM2 are connected in parallel. Transistors TA1, TA2 and their accompanying diodes D1, D2 may be replaced by two diodes, Fig. 7 (not shown), the hole storage of which are matched to the main transistor.
Patent GB-1310751-A (GB)
Title: Digital arithmetic system for computation of square roots and squares
IPC: G06F7/68
Filed: 1970-04-09
Abstract: 1310751 Squarer or square rooter WESTINGHOUSE ELECTRIC CORP 9 March 1970 [9 April 1969] 11662/70 Headings G4A and G4H The invention relates to a digital arithmetic system for computing squares or square roots. Pulses at a frequency f are fed via gate 22 to a counter having flip-flop stages FFI-FFN. The pulses are also fed to a frequency divider which supplies pulses at frequency f/2 to a further N- stage counter X. Corresponding stages of the counters feed AND gates AI-AN which feed an OR gate 14. The OR gate feeds an N-stage counter Y. It can be shown that if counters X and Y commence at zero then the contents of Y are the square root of the contents of X. The contents of counter Y may be compared with the preset contents of a register (Fig. 3, not shown) and when agreement occurs the gate 22 is inhibited. The contents of X are then the square of the preset number. Counter Y may be coupled to a digital to analog converter feeding a differential amplifier also receiving a varying analog signal. When the differential amplifier inhibits the gate the digital value of the square of the analog signal is in the X counter. Alternatively the X counter may be coupled to the converter (Fig. 5, not shown) so that the square root of the analog signal is obtained in the Y counter.
Patent GB-656199-A (GB)
Title: Improvements in or relating to electric signalling systems
IPC: G08C19/12
Filed: 1948-04-28
Abstract: 656,199. Electric control systems. HADFIELD, B. M. April 28, 1948, No. 11709. [Class 40 (i)] A signalling system comprises a series of control relays adapted to respond marginally to the algebraic sum of two voltages derived from series connected circuit elements. The voltage output of one circuit element is dependent on the input frequency whereas the output of the second circuit element is substantially independent of frequency, the control relay to be operated being determined by the input frequency. As shown, Fig. 1, the output current frequency of a high impedance tetrode or pentode 10 is controlled by a variable frequency input 11 and the anode circuit contains serially connected primaries of transformers 16, 19. The voltage output of transformer 16 is rendered frequency dependent by a condenser 12, connected across the primary thereof, the output of 19 being substantially independent of frequency. The transformer outputs are rectified at 17, 21 smoothed at 18, '22 and applied to the serially connected control and biassing windings, respectively, of the marginal polarized control relays 13, 14, 15. The bias is made different for each relay by winding the biassing windings with different numbers of turns or by resistors 23 so that the relays respond selectively during signalling in dependence on the frequency of source 11. The control relays are retained at "break" between signals by transmitting a low frequency biassing current. In another embodiment, Fig. 2, the rectified outputs from the two transformers are applied in series addition across load resistors 31, 31a smoothed at 32, 33 and fed to a potentiometer 34. The potentiometer tapping is so adjusted that at a predetermined frequency the voltage applied thereby to a valve 35 is zero, and a control relay 37 in the anode circuit of the valve operates as the grid voltage rises through zero value. To reduce the change in grid voltage required to operate the signalling relay a cathode follower 39, the input to which is derived from the anode resistor 41, is provided to operate the signalling relay 38, relay 37 being dispensed with in this case. Additional potentiometers such as 44 are provided to control similar relay apparatus at different input frequencies. To effect operations responsive to frequency bands contacts of the various control relays may be arranged additively or subtractively in further control circuits.