baber/WOPTO huggingface dataset:
Patent GB-1420322-A (GB)
Title: Turntable rotation in a vacuum atmosphere
IPC: G11B25/04
Filed: 1972-04-19
Abstract: 1420322 Bearings RCA CORPORATION 18 April 1973 [19 April 1972] 18152/72 Heading F2A [Also in Divisions F1 and G3] The speed of a turntable supported in a vacuum chamber by a hydrostatic bearing is controlled by altering the flow of hydraulic liquid impinging on the turntable in accordance with the difference between the measured speed and a reference value. The arrangement is used in the production of a master video disc record where a coating is exposed to a video signal modulated beam of an electron microscope 32. The turntable 21 is mounted on a glass cone (90) forming part of the bearing which is itself mounted in a carriage 22 arranged for translation motion by lead screw 30 and supported on hydrostatic ways 78, (98). The turntable is rotated by jets of hydraulic liquid directed against its periphery from jets 60, 62 and is controlled by using electrically operated valve 41 to divert the liquid from jet 62. The pressure of the liquid is regulated, at 40, 42 using a tank of nitrogen 44 as the pressure reference. The speed of the turntable is sensed by optical sensors (130) which co-operate with radially scribed lines on a ring (134) located on the underside of the turntable, Fig. 5 (not shown). The output signals are compared in phase comparators with reference signals produced by a reference oscillator and the error signal passed to an adder before being applied to valve 41, Fig. 4 (not shown). The exhaust hydraulic liquid passes under the control of a float valve 70 into reservoir 72 which is kept under reduced pressure to prevent air entering the fluid when chamber 34 is opened. The jets 60, 62 are provided with a chamber there entrapped air can be expelled to prevent fluid from splattering on the recorder disc.
Patent GB-477536-A (GB)
Title: Improvements in the manufacture of sole leather
IPC: C14C3/24
Filed: 1936-07-01
Abstract: 477,536. Making leather. ROHM, O. July 1, 1936, Nos. 18295 and 18296. Convention dates, July 2, 1935 and Sept. 16, 1935. [Class 76] Hides, which may be pickled or unpickled, are tanned by first treating them with sulphite cellulose extract and then in a bath or baths containing silicic acid or an acidified silicate, e.g. water glass. Bichromates may be added to the sulphite cellulose extract. Silicic acid baths, except the first, may also contain sulphite cellulose extract. Small amounts of other tanning. agents may be added to the tanning bath, e.g. chrome or potash alum, aluminium formate or a condensation product of naphthalene-sulphonic acid and formaldehyde. The tanned hides may be further treated with hard fats or waxes, e.g. tallow, paraffin, carnauba wax, synthetic waxes, &c., or the grain side may be treated with neat's-foot oil. A mixture of paraffin and tetrahydronaphthalene is suitable for the greasing treatment.
Patent GB-903763-A (GB)
Title: Torque-measuring apparatus
IPC: G01L3/10
Filed: 1958-09-11
Abstract: 903,763. Measuring electrically. MESSENJASCHIN, G.A. Sept. 11, 1958 [Sept. 14, 1957], No. 18313/62. Divided out of 903,762. Class 40 (1). In torque-measuring apparatus of the type described in Specification 903,762, in which two rings of teeth are carried by the torsion shaft, the stator or stators are resiliently supported so as to permit movement in the event of eccentricity. In Fig. 1, toothed rims 31, 32 are respectively formed on a flanged sleeve 33 and the inner end of a cylinder 35. The stator coils 46 are mounted on carriages 43 supported on radial and axial ball races 42. The stator carriages 43, Fig. 4, are biased against the rotor bearing surfaces by springs 44a from an adjustable stator ring 50 clamped at 51. Alternatively, as in Fig. 2 (not shown), a single carriage 43 is biased by a spring from a fixed point and is provided with an adjusting screw. In Fig. 5, the toothed rim 32 is supported on the toothed rim 31 by a ring 56 riding on ball bearings. The stator carriage 55 is supported on conical section bearings 54. In each case the torque is determined by measuring the phase difference of voltages generated in the two sets of stator coils. Alternatively, the voltages may be derived by cyclic capacitance variations.
Patent GB-977890-A (GB)
Title: Sewing machine carrying case with hinged drop panel
IPC: D05B75/06
Filed: 1963-05-09
Abstract: 977,890. Sewing machines. SINGER CO. May 9, 1963 [May 14, 1962], No. 18330/63. Heading D1G. [Also in Division E2] A panel is hinged to a sewing machine carrying case base member of synthetic plastics by a hinge including a leaf 34 which is disposed within a cavity in a projection 60 of the base. The leaf 34 is formed of spring steel and has an end plate 41, side plates 42, 52 and H-shaped plates 44, 54 provided with prongs 47, 48, 57, 58. The base 16, shown inverted in Fig. 4 has a plastics projection 60 provided with a central cavity 61 receiving the plates 41, 42, 52, of the leaf 34, and the end of the other leaf 36 which is pivoted to the first leaf at 37 and is embraced by plates 42, 52. Side cavities 64, 74 receive the H-plates 44, 54 and the leaf 34 is retained in the projection by the prongs 47, 48, 57, 58. The leaf 36 emerges from apertures 83, 84, in the base and is secured at 38 to the flap 31. The movement of the leaf is limited in both directions by the engagement of the edge 40 of leaf 36 with the plate 41 of the leaf 34.
Patent GB-530426-A (GB)
Title: Automatic control system for television receivers
IPC: H04N5/52
Filed: 1939-06-23
Abstract: 530,426. Automatic gain control. HAZELTINE CORPORATION. June 23, 1939, No. 18349. Convention date, July 27, 1938. [Classes 40 (iii) and 40 (v)] The vision signal is detected by diode 24, and the lower envelope thereof is developed across the resistance 27. This envelope, together with pulses which are received from a valve 42 and which block out the synchronizing pulses in the signal, is applied to the triode section of valve 23. The output therefrom is developed across a resistance 30 and is applied to the reproducer 17, through an amplifier 31 and through circuit 16 which stabilizes the signal at its blanking level. The output from valve 23 is also applied in part to a diode 50 which develops across resistance 52 a potential dependent on the peak value which, as the lower envelope is being used, is the black level. This potential is used for gain control and is applied to the carrier frequency stages. The valve 42 is fed from diode 38 and produces pulses at the moments of the synchronizing signals, and applies these to the valve 23, to the separator 20 and thence to the line and frame generators 21, 22, and also to the reproducer 17 so as to prevent reproduction of synchronizing pulses in the vision signal from amplifier 31.
Patent GB-477549-A (GB)
Title: Improvements relating to door operating mechanism for railway and like vehicles
IPC: E05F15/56
Filed: 1936-07-03
Abstract: 477,549. Door-operating appliances. KERSHAW, A. G., LEECH, K. H., and WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. July 3, 1936, No. 18517. [Class 65 (i)] A fluid-pressure door engine is controlled by an electromagnetically-operated valve with mechanical means for setting the valve into a neutral position to allow operation of the door by hand. In the form shown, the engine 1 comprises two cylinders with pistons connected by a rack bar 6 engaging a sector on the door-operating lever 9. The outer ends of the cylinders are connected by passages 12, 13 to a slide valve 17 by which they are alternately connected to the atmosphere and to a pipe 19 leading from a vacuum (or pressure) reservoir. The valve 17 is operated to either extreme position by electromagnets 21, 22 under the control of driver's switches 26 and a conductor's switch 38, and mechanical means are provided at 41 whereby passengers can move the valve 17 to a central position, thus opening both cylinders to the atmosphere so that the door is balanced and can be moved by hand. A number of doors in a vehicle or train may be controlled from the same switches.
Patent GB-707658-A (GB)
Title: Improvements relating to high pressure compressors
Inventor: ELLIOTT RONALD BERNARD
IPC: F04B39/06
Filed: 1951-08-07
Abstract: 707,658. Compressors. HYMATIC ENGINEERING CO., Ltd. Oct. 28, 1952 [Aug. 7, 1951], No. 18551/51. Class 8 (1). In a high pressure compression, liquid or condensate is drained to a trap c, the lower part of which communicates with the delivery system g via a non-return valve f which opens when the pressure in the delivery system falls below the pressure in the trap and allows accumulated liquid to blow into the delivery system. The piston i of the high pressure stage of a three stage compressor is reciprocated in the cylinder k by means of a Scotch yoke. The cylinder is parted at b and communicates through a connection a with the trap c which also communicates with the inter-cooler through a pipe h. The cylinder k is extended to form an aftercooler and communicates therewith through a valve m spring loaded by a spring o in a cap n which forms a liquid trap in the after-cooler j. A relief valve p acted on by Belleville washers r is mounted in the end of the after-cooler j.
Patent GB-1088782-A (GB)
Title: Improvements in or relating to liquid atomizers
IPC: B05B1/34
Filed: 1966-04-27
Abstract: 1,088,782. Atomizing liquid fuel. BABCOCK & WILCOX CO. April 27, 1966 [April 27, 1965], No. 18566/66. Heading F4T. A liquid fuel atomizer comprises a first cylindrical whirl chamber 20, provided with a discharge outlet 21, a helical pattern of circular fuel inlet openings 17 and a slidable plunger 22 which may be moved to continuously increase or decrease the number of openings 17 supplying fuel to the chamber. Adjacent openings 17 are arranged so that they overlap in the axial direction of the chamber. The end faces 22A and 22B of plunger 22 are shaped to co-operate with the outlet 21 and a whirl bore in the plunger defines a second whirl chamber 25. A second discharge outlet 26 in the end of plunger 22 opens into the first chamber 20 and a second plunger 30 is a slide fit within the bore in the first plunger. Fuel enters the second chamber via openings 17 and openings 24 in a recessed portion 23 of the plunger 22. Openings 24 are arranged similar to openings 23. Movement of the plungers is limited by pegs and slots 43, 44 and a control rod 40 is connected to second plunger 30 and has disposed between itself and first plunger 22 a spring 42. Fuel enters inlet 12 and flows to the atomizing head through barrel 12. At full load the atomizer is as shown in Fig. 1 but for decreased load a knob 60, threaded to the end of rod 40, is rotated and the plungers 22 and 30 move axially together, without rotating in chamber 20 until faces 22A and 22B seat against co-operating faces surrounding outlet 21. Fuel is now supplied only to second chamber 25. Further rotating of knob 60 will cause plunger 30 to move within plunger 22 to close outlet 26. A block 65 prevents rod 40 being rotated by being guided between bars 55. A micrometer 66 is attached to block 65 to measure the rod's position. In Fig. 8 an atomizing fluid passes through a bore 28 in rod 40a to the second chamber from an inlet 12a.
Patent GB-709610-A (GB)
Title: Improvements in or relating to the preparation of hexafluorophosphoric acid
IPC: C01B25/10
Filed: 1952-07-23
Abstract: Hexafluorophosphoric acid is prepared by reacting phosphorus pentafluoride and hydrogen fluoride in liquid sulphur dioxide. Gaseous phosphorus pentafluoride may be passed through a liquid mixture of sulphur dioxide and hydrogen fluoride at -30 to -15 DEG C., although higher temperatures even above 20 DEG C. may be used. The ratio SO2 : HF should be 1 : 1 at -20 DEG C., or higher at higher temperature, and lower at lower temperature.  The sulphur dioxide is distilled off after the reaction leaving the liquid hexafluorophosphoric acid.  The reaction may be effected also between gaseous or liquid hydrogen fluoride and a solution of phosphorus pentafluoride in sulphur dioxide, or by adding hydrogen fluoride and phosphorus pentafluoride simultaneously to liquid sulphur dioxide. The phosphorus pentafluoride is prepared by heating water-free calcium fluoride with phosphorus pentoxide in a steel retort.
Patent GB-213488-A (GB)
Title: Improvements in cocks for hot water or steam heating plants
IPC: F16K1/52
Filed: 1923-07-19
Abstract: 213,488. Lombardi, M. July 19, 1923. Valves fitted with independently actuated supplementary valces.-A screw-down valve is provided with an additional regulating sleeve which may be separately set to determine the maximum flow and which is provided with a triple screw thread to receive the screwed spindle. The valve body is threaded at 2 for connection to a hot water or steam conduit, at 3 for connection to a radiator, and at 4 to receive a cap 13. The supplementary closure member 8, Fig. 9, is provided with a triple screw thread 10, and has its lower part 9 cut away at an angle. The main valve 11 is conical, and its stem 20, Fig. 6, is oval to allow accurate seating. The member 8 is secured by a cap 13, and is provided with a stuffing-box 14.
Patent GB-1300758-A (GB)
Title: Manipulating tool for nuclear reactor components
Inventor: SUVANTO ANTTI
IPC: G21C3/14
Filed: 1970-04-20
Abstract: 1300758 Tool for handling nuclear fuel elements ASEA-ATOM AB 20 April 1970 [21 April 1969] 18720/70 Heading B8H A tool 67 for raising and lowering a nuclear fuel assembly from or into a reactor of the kind having a fuel rod bundle provided with a handle and removably arranged in a shroud tube 112 provided with lifting holes 129 comprises a gripping member 68 having legs 69, 70 pivoted on a pin 71 and pivotally connected to a vertically movable operating rod 73 through arms 72, the legs 69, 70 having outward-facing hooks 76, 77, 80, 81 and inwardfacing hooks 78, 79, as shown in Fig. 15, each hook being provided with retaining claw 83 such that when it is required to remove the fuel assembly from a reactor the gripping member 68 is folded in by downward movement of the rod 73 and is moved down between the holes 129. The rod 73 is then raised thus causing the hooks 76, 77 to engage the holes 129 while the hooks 80, 81 abut the handle 124, as shown in Fig. 13. When it is desired to grip the handle 124 only the rod 73 is moved upwards thus moving the hooks 76, 77 away from the shroud tube 112, and the rod 73 is then moved downwards causing the hooks 78, 79 to engage the handle 124 as shown in Fig. 15. The rod 73 is connected to an operating device (74), Fig. 11b (not shown), which is suspended from a hoist (not shown), and the device (74) may be a pneumatic or hydraulic cylinder or an electromagnet. If on lowering a fuel assembly into a reactor the tool 67 should become excessively slewed, a magnet (94) which is mounted between relays (52) will deviate from its normal central position and break the current to the hoisting machinery, which also happens if the fuel assembly is lowered with an incorrect orientation with respect to the reactor core grid.
Patent GB-1444754-A (GB)
Title: Rotary actuators suitable for bladed rotors
IPC: F01D7/00
Filed: 1973-04-18
Abstract: 1444754 Semi-rotary actuators DOWTY ROTOL Ltd 26 March 1974 [18 April 1973] 18734/73 Heading F1F In a rotary actuator of the type described in Specification 1444753, means for preventing relative rotation between the main actuator components 15, 16 after they have reached a predetermined relative rotational position, comprises stops 40 on the peripheral surface 39 of the mem ber 38 splined to shaft extension 18 of component 15, which stops 40 co-operate at said predetermined relative position with rollers 45 held in openings 44 in an annular member 43 so that they sit in recesses in the member 28 fixed to component 16, the rollers 45 being axially movable with respect to member 28 by fluid-operated means between an operative position where the rollers are in the path of stops 40 and an inoperative position where they are not. Normally, balls 47 located in recesses 46 in member 43 are urged outwardly by centrifugal force and, due to frusto-conical surface 49 on member 28, force the rollers 45 to the left, Fig. 1, by acting on a vertical face 48 of the recesses 46. Thus if maximum pitch-lining is required the stops 40 and rollers 45 would be arranged to co-operate at a position corresponding to a O degrees pitch position. After landing, the negative pitch range is required and fluid-pressure is supplied to passages 52 in vanes 25 of component 16 to act on piston 50 in cylinders 51 each extending through a respective vane and the component. The pistons 50 act on member 43 to urge rollers 45 to the right, thus forcing the balls 47 inwardly and taking rollers 45 out of the path of stops 40. Bearing 27 by which component 16 is housed in the hub of the bladed rotor structure, is made of plastics.
Patent GB-210365-A (GB)
Title: Improvements in spinning frame mechanism
IPC: D01H5/46
Filed: 1923-07-20
Abstract: 210,365. Keay & Leslie, Ltd., D., and Ness, J. July 20, 1923. Rollers and roller heads.-In a spinning-frame in which a stirrup is provided for applying pressure to the non-rotatable member of the pressing roller bearing, the weight is suspended from a hook b at the end of the pressing roller lever a. The lever a is pivoted to an eye-bolt c, and transmits pressure through the bolt d and stirrup e. The ends f of the stirrup are provided with pins g adapted to rest on the frame of the machine, while the stirrup hangs on the lever a by means of a strap h when displaced for removing the roller. An adjustable nut k is provided on the bolt d.
Patent GB-320321-A (GB)
Title: Improvements in casting apparatus for destroying animals
IPC: A22B5/02
Filed: 1928-06-29
Abstract: 320,321. Fogelnest, C. S. June 29, 1928. Animals, stocks and like appliances for holding.-A casting machine for holding animals while being slaughtered comprises an opentopped pen 1, which can be turned by manually or power operated means 6 from a vertical to a horizontal position so as to cast the animal on its side, and which is mounted on a turntable 2 running on rollers 3 over a track 4 round a vertical axis 5, so that the pen can be rotated to facilitate delivery of the carcass at any desired point. The support for the turntable 2 is guttered at 29 for drainage purposes. The means for rotating the pen 1 comprise a geartrain 7, the last follower of which drives a shaft 8 carrying a worm 10 driving a worm-wheel 11, on the axis of which is a pinion 12 engaging a halfcircular rack 13, which is fixed to the pin 1 and is concentric with the hinging axis 14 thereof. In an alternative form, the pen 1 may be raised with respect to its support, and a gear wheel driven by the pinion 12 may be mounted on the hinging axis 14. The half-circular rack 13 may be duplicated or multiplicated. The pen 1 is provided with a rear self-closing door 17, a low front 16 arranged to move inwards under the control of a pin and rack 18 so as to be adjustable in cases where the animal refuses to advance to the front of the pen, a padded false side 22 adjustable by means of a screw 23 to suit animals of different widths, and a vertically restraining bar 26 or flexible member 26<a>. A part 24 of the side 21 which is uppermost when the pen is cast can be folded back, so as to facilitate removal of the carcass on the padded trolly 19, which is mounted on slide guides 30. The part side 24 is normally locked by bolts 28 which can be shot. by means of a lever 27.
Patent GB-1497003-A (GB)
Title: Clock or time switch drives
IPC: G04C15/00
Filed: 1976-05-07
Abstract: 1497003 Electric timing drives LGZ LANDIS & GYR ZUG AG 7 May 1976 [15 May 1975]  18919/76 Heading G3T In a clock or time switch drive comprising a synchronous motor 1 with a shaft 5 carrying a helical spring 6 as a drive worm, the latter engages a pinion 7 on a resiliently mounted connecting shaft 8 and the motor itself is resiliently mounted e.g. by springs 15-17. A worm 8a at the other end of shaft 8 drives a wheel 4 on output shaft 3. The shaft 8 is slidably supported in slots 9, 10 in bearing blocks 11, 12 and biased toward the motor by a spring 13 engaging a collar 14 loose on the shaft. Displacement of the motor is limited by stop 20 formed by a recess 19 in base plate 2. An alternative arrangement is described in which one end of the shaft 8 is restrained by a member attached to the motor 1.
Patent GB-902810-A (GB)
Title: Extrusion apparatus
Inventor: NICHOLLS JAMES
IPC: B21C35/04
Filed: 1958-06-13
Abstract: 902,810. Extruding. YORKSHIRE IMPERIAL METALS Ltd., and FIELDING & PLATT Ltd. Sept. 14, 1959 [June 13, 1958], No. 18950/58. Class 83 (4). An extrusion press for producing rods or tubes from metal billets extruded by a ram through a die supported by a bolster, has a discard removing device 7 comprising a punch 4 movable into the die orifice 18 to sever the discard 22 from the extruded product 19. At the end of the extrusion stroke the die 18 and is holder 17 are moved rearwardly by a long hydraulic motor (not shown) to a position outside the billet container and in front of the device 7. The latter is supported on telescopic guides 9, 10 for vertical movement by an hydraulic motor 8 from an inoperative upper position to a lower position in alignment with the die axis. If a discard shell is formed, this and the press disc 21 adhering thereto are first severed from the discard 22 by a horizontallymovable shear blade 16, Fig. 1, actuated by a piston 12. The shell and disc are supported during shearing by a piston 11. Thereafter the punch 4 is moved into the die 18 by an hydraulic piston 5 to sever off the discard. This is accompanied by slight elongation of the extruded product 19. The latter may be a tube or a rod.
Patent GB-1150511-A (GB)
Title: Improvements in Identification System by Finger-Print Comparison
IPC: G06V40/13
Filed: 1966-04-29
Abstract: 1,150,511. Identity verification systems; finger print impressions. SIBANY MFG. CORP. 29 April, 1966 [5 May, 1965], No. 18952/66. Headings B6A and B6R. [Also in Division G4] An identity verification system comprises, an identity card 7 upon which code lines 6 representative of a finger-print are printed, comparison means by which the card print is compared with an actual finger-print recorded at a finger printing station 24, and means for indicating an identity or lack of identity between said fingerprints. The code lines 6 may be on the card 7 shown or, as in Fig. 12 (not shown) may be on a film strip (52) secured within the housing 12 of the comparison means. The required section of the film (52) is fed into position either by setting the feed to an individual number or by a keying. The code lines 6 are of varying widths in accordance with the degree of overlap between a finger-print line 1, Fig. 1, and a reference line 4 which may be one of many shapes. In operation, identity is verified by the individual recording his finger-print in the solenoid-operated printing section 13. This comprises a guide channel for the finger in which is an opening below which is a thin polyethylene sheet 15 having a thickness of about 0À5 mil. The sheet, in strip form 15 layers above an inking tape 16 and when the solenoid 21 is operated an even imprint of the finger is made on the strip 15. The strip is then fed into the comparator 13<SP>1</SP> and light from a lamp 38 shines through the print and the print on the identity card inserted in the comparator. Suitable means are provided to oscillate the scanning head. If the lines on the film are black and the lines on the card are clear, the identity is established if a photo-electric cell records no light. The reverse arrangement is also described.