baber/WOPTO huggingface dataset:
Patent GB-632374-A (GB)
Title: Improvements in discriminators and detector circuits for angle-modulated waves
IPC: H03D3/08
Filed: 1946-09-06
Abstract: 632,374. Frequency and phase modulation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 6, 1946, No. 26788. Convention date, Sept. 6, 1945. [Class 40 (v)] A discriminator-detector circuit for anglemodulated waves comprises a pair of series circuits 15, 14 and 16, 17 in parallel from the unlike but equal reactances 14, 17 of which at the carrier unmodulated frequency, a pair of rectifiers 20, 21 are fed developing variable opposed voltages across load resistances 30, 31, depending on the variation of the reactances with frequency. The circuits 15, 14 and 16, 17 may be series resonant at the unmodul.ated carrier frequency or, if not, the reactances 15, 16 and 14, 17 are made approximately equal to form a resonant tank circuit 8 tunable by one condenser 16, to which the other condenser 14 is ganged to maintain the output reactances 14, 17, equal at the unmodulated frequency. Alternatively the circuits 15, 14 and 16, 17 may each be series resonant at slightly different frequencies on opposite sides of the centre frequency. The inputs to the diodes are applied by way of condensers 23, 25 and vary in accordance with variation of the reactances 14, 17 with frequency. The input valve 1 may be an amplifier and/or limiter, feeding the discriminator by way of a D.C. blocking condenser 19 or, Fig. 2 (not shown), the tank circuit 8 may be atÀhigh D.C. potential and connected to earth by a condenser, a parallel resistance providing a non-inductive lead to the limiter valve anode and broadening the discriminator timing. With phase-modulated waves a de-emphasis correcting network follows the detector.
Patent GB-387625-A (GB)
Title: Improvements in and relating to means for controlling free wheel devices for motor or other vehicles
IPC: B60K20/00
Filed: 1932-09-27
Abstract: 387,625. Controlling motor vehicles. RENAULT, L., 8, Avenue Emile Zola, Billancourt, Seine, France. Sept. 27, 1932, No. 26832. Convention date, Oct. 29, 1931. [Class 79 (v).] A free-wheeling device is adapted to be locked by application of the brake-pedal so as to utilize engine-braking. The brake-pedal, when depressed, first opens the throttle, and then displaces a lever which engages a positive clutch between the engine and the wheels and simultaneously re-closes the throttle. In the form shown in Fig. 1, depression of the brakepedal 1 first causes a cam 3 to displace the lever 5, thus pulling a cord 8 and pulley 9 to the right and opening the throttle 15 ; further depression of the pedal causes the cam 4 to act on a bell-crank lever 21 thus pulling a rod 22, opening a valve 23, admitting suction from the induction pipe to a cylinder 26, rocking the lever 11 about its pivot 11a, and engaging the positive clutch 12. The movement of the lever 11 allows the pulley 9 to move back to the left and the throttle to close again. Alternatively the cam 4 may make the circuit of an electromagnet which rocks the lever 11, or the cam may act through a bell crank connected to the upper run of the cord 8. In the form shown in Fig. 3, the throttle is opened by the small cam 3 acting on a lever 5 which is held in the open position of the throttle by a detent 33 until the cylinder 26 rocks the lever 11 thus rocking a lever 37 and pulling a cord 36, which pulls the tail 35 of the detent and disengages it. In the form shown in Fig. 5 the cam 3 makes a contact 42 thus energizing a magnet 43, which opens the throttle. The cam 4 then makes a contact 44, thus energizing a magnet 45, which rocks the lever 11 and engages the clutch. The movement of the lever 11 rotates a lever 47 which opens a switch 48 in the circuit of the magnet 43, thus allowing the throttle to reclose. In a further form, Fig. 6 (not shown), the electromagnets 43, 45 are replaced by vacuum cylinders operated from the induction pipe, and the contacts 42, 44 and switch 48 by valves.
Patent GB-713934-A (GB)
Title: Improvements in or relating to high-frequency inductance coils
IPC: H01F21/00
Filed: 1952-10-27
Abstract: 713,934. Screw and nut gearing. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 27, 1952 [Oct. 30, 1951], No. 26931/52. Class 80 (3) [Also in Group XXXV] Continuous rotation in one direction of a shaft 33 drives a moving contact arm 19 in one axial direction along a helica path in engagement with a coi 9 and in the other axial direction out of engagement with the coil, alternately. In the posi tion shown in the Figures, shaft 33, rotating in the direction shown by the arrow 39, carries with it rods 27, a contact arm carrier 17 to which is secured a flange 35 with notches in which rods 27 engage, and a nut 13 having a left-hand thread. This nut is latched to carrier 17 by a spring-urged pawl 37. As nut 13 is threaded on a fixed screwed shaft 11 in which are cut both left- and right-hand threads, the nut and carriage move to the right, the contact arm 19 being withdrawn against pressure of spring 21 to the position shown in Fig. 2, so that it does not make contact with the main length of the helical coil 9. Eventually a rod 41 engages flange 31 carrying the rods 27, and is pressed against a spring 25 to the left relative to carriage 17 until a part 23 which it carries is disengaged from a recess 24 in contact arm 19. This contact arm moves out to engage coil 9 and by virtue of spaced recesses in it, rods 45, 47 both move to the left, so that nuts 13, 15 are respectively disengaged from and engaged to carrier 17. The carrier 17 is then driven by nut' 15 which has a right-hand thread, to the other end of the coil, with contact arm 19 describing a helical path in engagement with coil 9. At its left-hand end (Fig. 1) the last coil turn decreases in diameter so that contact arm 19 is'pushed in against spring 21 and rods 45, 47 both move to the right so that nut 15 is freed and nut 13 is relatched to carrier 17 to, repeat the cycle of movement. In a modification, the screwed shaft is outside the coil and both shaft and coil rotate, the contact carrier moving only axially relative to the coil. The coil end turn then has a radius greater than that of the other turns.
Patent GB-519184-A (GB)
Title: Improvements in or relating to machines for digging potatoes and the like
IPC: A01D19/00
Filed: 1938-09-15
Abstract: 519,184. Harvesting potatoes &c. SMITH, A. E., and BLACKSTONE & CO., Ltd. Sept. 15, 1938, No. 26968. [Class 6 (iii)] In the auxiliary spinner of a machine for digging potatoes &c. the tines 4, which may be of the single form, or of the twin form shown, have their ends 6 curved backwardly in relation to the direction of rotation of the spinner, so that potatoes are not damaged on coming into contact with the tines. The extreme ends 7 of the tines are tangential to, or within the circumference of, the circle swept out by the tines during rotation. Specifications 268,070, [Class 6 (iii)], and 383,044 are referred to.
Patent GB-260981-A (GB)
Title: Improvements in stop-motion devices for machines for opening textile fibres
IPC: D01G31/00
Filed: 1926-10-28
Abstract: 260,981. Filature de Coton T. Barrois, Soc. Anon. Nov. 5, 1925, [Convention date]. Stop-motions. - In an arrangement for stopping an opening machine on the passage of a foreign body between the calender rollers the upper roller 3, Fig. 1, is loose and is driven frictionally by the lap passing between the rollers and controls automatic means for stopping the lower driven roller when the speed of the loose roller is checked by the attempted passage of an obstacle. The upper roller 3 carries a ratchet-wheel 5 engaged by pawls 1<a> mounted on a cam 1 loose on the shaft 2. A second cam 7, controlled by a spring 8, engages the cam 1 and is driven by a gear 10 on the shaft 9 of the lower roller 4. When the roller 3 is stopped by the passage of a foreign body, the continued rotation of the cam 7 forces it away from the cam 1 and the gear 6 is moved over a gear 11 loose on the shaft 9, so as to rotate a cam 12 and operate the stopping-lever 17, Fig. 5. The cam 12 is provided with a cord 20 and weight 19 tending to rotate it in the opposite direction to its normal movement. The shaft 9 carries a gear 13, engaging a gear 15 on the lever 17 and after a stated time toothed arms 13<a>, 15<a> engage and force the lever 17 to one side to stop the machine.
Patent GB-1155069-A (GB)
Title: Conveying Device For Crushed Material, having a Pump and a Vacuum Suction Apparatus
Inventor: SCHNELL KARL
IPC: A22C11/08
Filed: 1967-06-13
Abstract: 1,155,069. Comminuted meat. K. SCHNELL [trading as FIRMA KARL SCHNELL MASCHINEN FABRIK]. 13 June, 1967 [30 June, 1966], No. 27158/67. Heading A4C. [Also in Division F1] A conveying device for comminuted material, e.g. comminuted meat, including a conveyer pump and a vacuum suction installation, wherein between the pump and a suction conduit of a vacuum apparatus an auxilliary pump is arranged to convey any commmuted material that has entered the suction conduit back into the conveyer pump in a direction opposite to that of the suction air. As shown, an internally-meshing gear pump having intermeshing gears 5, 6 conveys material from an inlet 3 to an outlet 4 and between the outlet and the inlet in the direction of rotation is disposed a suction conduit 7 connected to a suction apparatus (not shown) and fitted with a twin worm auxiliary pump 10. Air bubbles and any material clogging the gear teeth is sucked into the conduit 7, the material being returned by the pump 10 to the inlet 3 of the conveyer pump, in a direction opposite to the suction air flow, to be mixed with the incoming material.
Patent GB-817815-A (GB)
Title: Improvements in and relating to spinning mules
Inventor: KING BRIAN EDMUND
IPC: D01H3/04
Filed: 1956-09-05
Abstract: 817,815. Distant control switching systems. T.M.M. (RESEARCH) Ltd. Sept. 4, 1957 [Sept. 5, 1956], No. 27166/56. Addition to 732,665. Class 38 (4). [Also in Group IX] The spinning mule described in the parent Specification is provided with an improved control system for applying the voltage-shaping circuits to the carriage and spindle driving mechanisms, including a rotary selector switch and virtual earth amplifiers. Modifications of the mechanical driving arrangements of the mule are described (see Group IX) and the selector switch has six wipers which make stepby-step movements in synchronism through twelve positions to control, in association with carriage-operated switches, the various mechanisms of the mule. Control of movement of the carriage is effected in part by the circuit shown. The initial carriage speed is determined by the setting of a potentiometer P8. The anode output of a virtual earth amplifier V22 is taken to a cathode follower V23, the cathode of which is connected to a potentiometer P9 that is rotatable and driven mechanically by movement of the carriage. The voltage at the wiper of P9 is of opposite phase to that at the wiper of P8 and is fed into a phase-reversing virtual earth amplifier V25, thence through one bank of the selector switch to an electromagnetic slip coupling in the carriage drive. When the selector switch severs the connection in the feed bank link with V22, the further movement of the wiper of P9 will result in a decreasing carriage speed until the voltage reaches that set by a potentiometer P10 when a carriage operated switch S4 permits a potential acquired by a condenser C6 to leak away via R100, R104 and the carriage makes a slight, slow movement in reverse until it operates another switch S3 to connect the grid of the cathode follower V24 to the zero line, increase the negative potential of the wiper of P9 and stop the carriage. Interposed between the circuit shown and the carriage drive slip coupling is a further circuit to control the acceleration imparted to the carriage. In this, the signal from a neon tube V26 is applied through a series of virtual earth amplifiers and cathode follower where it is mixed with other signals as described in the parent Specification to appear as positive signals at the grid of a thyratron connected with the carriage drive slip coupling. The spindle drive control is stated to be similar. Specification 736,743, [Group IX], also is referred to.
Patent GB-162594-A (GB)
Title: An improved typewriter
IPC: B41J1/20
Filed: 1920-09-23
Abstract: 162,594. Darnley, P. H., and Richards, B. Sept. 23, 1920. Index type-wheel machines; toy machines.-In machines in which the types are formed on a flexible band secured to the periphery of a rotary carrier, the setting-arm is adapted to be coupled to the carrier at one of a series of points, corresponding to the selected type, and to be then rotated to bring the selected type to the printing- point. A simplified machine, intended particularly for use by children in learning spelling, is shown, each type b on the band c being adapted to print a letter, and a picture representing an object of which the name begins with the letter; or word-types may be employed. The band c of rubber or the like is secured to a disc a rotatable on a pin e which is secured to a boss on the base g. For securing the band, the disc may have projections d engaging holes in the band, and a wire d<1> may be passed around the band. The disc is rotated by means of a setting-arm h which can turn on the pin e and is formed with an aperture for engaging one or other of a series of projections i on the disc. An index-plate m is secured to the disc and is provided with index characters registering with the projections. A type is brought to the printing-point by placing the setting-arm over the corresponding character on the index-plate and in engagement with the adjacent projection, and then turning the setting- arm until it is arrested by a stop g<2> on the base. Hammer - impression arrangements; papersupports; strip-guiding arrangements. - Impression is effected on a strip of paper by means of an impression-hammer p, Fig. 2, which passes through a hole in a flange n secured to the base, and is operated by pressing inwards the fingerpiece v of a rod u which is attached to the hammer and passes between guides u<1> on the base. The strip passes over a pad or platen r and is engaged by two spring-fingers t. The platen is provided with a yoke r<1> passing over a lug q on the base and secured by screws. Roller inking-arrangements. - Inking-rollers y are mounted on springs z adjustably secured to projections g<1> on the base.
Patent GB-707104-A (GB)
Title: Improvements in or relating to liquid measuring and dispensing apparatus
Inventor: COLLIS ROBERT STUART
IPC: B67D7/32
Filed: 1951-11-20
Abstract: 707,104. Dispensing liquid. PARKWOOD ENGINEERING CO., Ltd, Nov. 17, 1952 [Nov. 20, 1951], No. 27243/51. Addition to 688,030 Class 116. In a modification of the liquid dispensing apparatus described in the parent Specification a limited degree of lost motion is provided between the primary control member and its rotary driving member to facilitate disengagement of the primary control member and the trip means controlled thereby. On the pivoted shaft 36, controlling the latching lever 30 co-operating with the spring-loaded lever 28 for closing the motor switch by moving lever 22 and rod 27, is a collar 40 having a boss secured by a screw 44 to the shaft 36. Pivoted to the collar is a pawl 41 movable upward through less than a right angle to allow for zeroizing as described in Specification 645,603, Mounted on a boss on the total shaft 8 which is geared to a sleeve on unit shaft 6, is a disc 43 having diametrically opposite projections or teeth 42 adapted to engage the pawl 41. A collar 50 carrying the boss is secured to the shaft 8 and has a pin 55 engaging in a slot in the disc 43. A spring 57 connects the disc 43 with a collar 52 secured to the shaft above the disc. When a tooth 42 contacts the pawl 41 and the pin 55 is in driving engagement with the disc 43 the shaft 36 is depressed and the lever 28 is. released to open the motor switch. In an alternative form, Fig. 7, a pawl 41<SP>1</SP> is mounted on a shoulder of a bar 36<SP>1</SP> to engage the tooth on the disc. A member 39<SP>1</SP> limits the upward movement of the bar. The spring 48, Fig. 3, 48<SP>1</SP>, Fig. 7, restores the shaft or bar to its initial position and by placing the nozzle on the rest 18 the levers 28 and 30 are latched. The rest is raised to close the switch. One end face of the lever 28 or 30 is inclined so that when disengaging an upward thrust is transmitted to the link 38 and consequently a downward motion to the shaft 36 thereby allowing the tooth 42 to disengage from the pawl 41, the operations being completed by the action of the spring 57. The collar 50 and a number of teeth can be adjusted to vary the movement and stage of interruption. The lost motion may' take place at the centre of the disc and the pawl may be replaced by a shoulder or collar.
Patent GB-1530067-A (GB)
Title: 3-m-hydroxyphenyl-1-propyl-3-pyrrolidine ethanol
IPC: C07D207/08
Filed: 1977-06-30
Abstract: 1530067 3 - m - Hydroxyphenyl - 1 - propyl- 3-pyrrolidine ethanol SANDOZ Ltd 30 June 1977 27306/77 Heading C2C The novel compound of the Formula I and salts thereof, may be prepared by removing the protecting group R from a compound II 3 - m - Benzyloxyphenyl - 1 - propyl - 3 - pyrrolidine ethanol is prepared by demethylation of 3-m-methoxyphenyl-5-oxo-3-pyrrolidine acetic acid to form 3-m-hydroxyphenyl-5-oxo-3-pyrrolidine acetic acid, which with benzyl bromide and base yields 3-m-benzyloxyphenyl-5-oxo-3-pyrrolidine acetic acid, which is reduced to 3-m-benzyloxyphenyl-3-pyrrolidine ethanol, isolated as its hydrochloride, followed by N-alkylation using propionaldehyde under reducing conditions. Pharmaceutical compositions of compound I or a salt thereof with the usual excipients are active against psychotic disturbances when administered orally or parenterally.
Patent GB-480188-A (GB)
Title: Improvements relating to wall and like plugs
IPC: F16B13/02
Filed: 1936-10-08
Abstract: 480,188. Wall plugs. RAWLINGS, J. J., and RAWLPLUG CO., Ltd. Oct. 8, 1936, No. 27321. [Class 89 (i)] A wall plug consists of a plurality of thin metal wires a, e.g. copper or iron wires, each having a covering b of asbestos fibres. The fibres may be twisted or wrapped round the wires or the latter may be coated with a composition containing asbestos fibres and an adhesive. In the construction shown in Fig. 2, fibre-covered wires c are used in conjunction with cords or strands d of asbestos. The plug is formed by uniting the sections a, Fig. 1, or c, d, Fig. 2, by means of an adhesive, such as sodium silicate, to which a filler, such as chalk, lime, or clay, may be added, and heating to a temperature above 150‹ C. The outer surface of the plug is roughened by plaiting the fibres or by the provision of a coating of pumice or silica or an outer sheathing of cotton braiding. A lubricant, such as graphite, is preferably applied to the interior surface of the plug.
Patent GB-1172449-A (GB)
Title: Improvements in or relating to Golf Balls
Inventor: WICKMAN AXEL CHARLES
IPC: A63B43/00
Filed: 1967-07-26
Abstract: 1,172,449. Detection of golf balls. A. C. WICKMAN. 24 July, 1968 [26 July, 1967; 8 June, 1968], Nos. 34223/67 and 27347/68. Headings A6D. [Also in Division H4] The Specification describes various systems for discovering lost golf balls, the golf balls being constructed to radiate or reflect detectable radiation. The normal golf ball comprises a molded plastic casing 11, Fig. 1, a wound rubber filament middle portion 12, an inner rubber shell 13 and a liquid composition core 14. A radio active substance 15, strong enough to be detected for some distance but not too strong to handle may be mixed with the liquid core 14, Fig. 1; with the outer casing 11, Fig. 2 or in a paint 25, Fig. 3 on the outside surface of the ball. The radiation is thus omnidirectional and may be detected by a Geiger counter 22 mounted on the end of a golf bag trolley. The Geiger counter is directional, and the trolley &c. is thus orientated for maximum received signal. The level of received signal is displayed on a meter 23 which may be calibrated in range. Earphones may alternatively be used. The golf ball may be provided with a radio wave reflective layer at any depth, providing the layers external thereto are transparent to radio waves, and the golf ball may be detected by a radio direction finder 29, Fig. 7, used in the same manner as the Geiger counter of Fig. 5, in conjunction with a radio transmitter 27. The golf ball may be provided with a miniature radio transmitter 26 Fig. 4 which is detected by direction finder 29.
Patent GB-680759-A (GB)
Title: Improvements in grabs
IPC: B66C3/02
Filed: 1950-03-31
Abstract: 680,759. Grab buckets. TAYLOR, W. March 31, 1950. No. 27882/51. Divided out of 680,712. Class 78 (iv). Links F<SP>1</SP>, F<SP>2</SP> between the buckets A<SP>1</SP>, A<SP>2</SP> of the grab illustrated ensure their moving in unison. The buckets are pivoted at a<SP>1</SP>, a<SP>2</SP> on two parallel bars B forming a crossbar which carries a bracket c on which is mounted a double acting hydraulic ram C. The ram has two pistons, the rods of which are pivoted to the buckets at points d<SP>1</SP>, d<SP>2</SP> which lie outwardly of the pivots a<SP>1</SP>, a<SP>2</SP> when the grab is closed. Each link F<SP>1</SP>, F<SP>2</SP> is connected at one end to the pivot d<SP>1</SP> or d<SP>2</SP> between a bucket and its piston rod and at the other end has a pin and slot connection with the other bucket. A lifting eye E is provided on the bracket c.