baber/WOPTO huggingface dataset:
Patent GB-272201-A (GB)
Title: Gas heater for curling irons
IPC: A45D4/16
Filed: 1927-05-28
Abstract: 272,201. Ducart, G. June 4, 1926. Iron-heating stoves.-A gas-heater for curling- irons comprises, in a single unit, one or more heating-tubes for holding the irons, a gas burner and a thermostat for controlling the gas supply to the burner. The construction shown comprises end plates 1, between which are mounted an outer casing 2, the heating-tube 3, the burner 4, and a thermostat comprising a tube 5 containing a rod 7 of relatively inexpansible material. A sleeve 6 encloses the thermostat and heating- tube 3. The device for controlling the gas supply comprises a cylindrical body 8 to which gas is supplied by a pipe 9. The gas passes through apertures 20 in a cup 18, and thence through apertures 14 in a block 11, the latter apertures being closable by a valve 16 which, until the desired temperature is attained, is held open by a rod 12 forced by a spring 22 into contact with the end of the rod 7. The expansion of the tube 5 allows the rods 7, 12 to move to the left, closing the valve 16; a reduced supply of gas then passes to the burner through apertures 21 in the valver and a groove 12' in the rod 12. The temperature of operation is controlled by a screwed knob 19 which, on rotation, displaces longitudinally the cup 20, and with it the block 11, and so alters the position of the seating of the valve 16.
Patent GB-239464-A (GB)
Title: Stitched buttonhole
IPC: A41F1/02
Filed: 1925-06-04
Abstract: 239,464. Singer Manufacturing Co., (Assignees of Allen, E. B.). Nov. 4, 1924, [Convention date]. Buttonholes.-A button-hole for knitted fabrics is formed by a zigzag needle thread having alternately depth stitch and slit stitch loops 5, 4 concatenated by two looper threads 7, 9 which alternately enter and are entered by the depth stitch and slit stitch loops and vice versa. The seam formed on the one side of the work by the concatenated needle and looper threads ties down a filler 12 of soft yarn, this being flattened out as shown in Fig. 3. A similar filler 14 may be used on the other side of the fabric. The ends of the seam are overlapped to form a fly-bar.
Patent GB-273265-A (GB)
Title: Improvements in and relating to systems of electric supply
IPC: H02H7/22
Filed: 1927-05-31
Abstract: 273,265. British Thomson-Houston Co., Ltd., (Assignee of Weinfield, R. S.). June 28, 1926, [Convention date.]. Running generators in parallel; systems depending on two or more machines; regulation, automatic.-A dynamo-electric machine regulated for constant current output under normal conditions is regulated for a lower output under predetermined abnormal conditions, such as high temperature of the machine or reversal. Means may be provided to disconnect the machine and reduce the excitation upon a still higher temperature being reached and to restore its excitation' and reconnect the machine upon subsequent cooling. The connection of the machine to the circuit may be controlled by a relay responsive to the polarity of an exciter coupled to the machine. The invention is described as applied to a rotary transformer unit 1 working from supply mains 3 and in parallel with other sources of current on direct current mains 6. Starting is manually controlled at 8 but is automatic and the system comprises a lock-out time-delay relay 32, an automatic voltage-balance parallelling device 18, a polarity relay 30, a contact voltmeter 35 for constant voltage regulation below the load limit, which is superseded by a contact ammeter 36, regulating for constant current at that limit with means 42, 51 to change the calibration of the last under the control of a thermal switch 39 and a reverse current relay 50 respectively. The excitation of the machine is under the control of a reversible-motor-actuated rheostat 12 with relays 24, 21 for lowering and raising excitation and an excitation accelerating relay 15 operative during starting up. Under reverse current conditions the excitation lowering and raising relays have their circuits interchanged by the reverse current relay 50. The excessive temperature thermal switch 44, effects the disconnection and re-connection of the d.c. side by controlling the circuit of a relay 46 controlling the d.c. circuit breaker 7 and the voltage lowering relay 24. A relay 23 prevents the operation of the voltage-raising relay or the closure of the d.c. circuit breaker unless the rheostat 12 shall have been initially brought to minimum excitation position. The relay 46 also controls the lock-out relay 32 in conjunction with auxiliary contacts in the circuitbreaker 7.
Patent GB-849835-A (GB)
Title: Fiber feeding apparatus for drum driers or the like
IPC: F26B17/28
Filed: 1957-05-08
Abstract: 849,835. Drying fibrous materials. FLEISSNER, H., FLEISSNER, H., and FLEISSNER, G., [trading as FLEISSNER & SOHN MASCHINENFABRIK]. May 8, 1957 [June 8, 1956], No. 14677/57. Class 34(2) In feeding loose fibrous material to a drum drier, the material is loosened by a plucking mechanism and then allowed to fall freely upon an intermediate drum which conducts it to the first perforated drum of the drier. As shown, material from a conveyer 1 passes through feed rollers 2 and 3 to a plucking wheel 4 rotating at from 500 to 2,000 R.P.M. and is thrown down on to an intermediate drum 5 which feeds it to a perforate suction drum drier 6 having cover plate 10. The drum 5 may be unperforated or perforate, in the latter case it has cover plate 1'1 and a suction fan (not shown). In a modification, the plucking wheel is replaced by a hopper and a pin-studded conveyer belt.
Patent GB-117188-A (GB)
Title: Improvements in and relating to Electric Switches.
IPC: H01H33/14
Filed: 1917-10-11
Abstract: 117,188. British Thomson - Houston Co., (General Electric Co.). Oct. 11, 1917. Oil switches.-A switch giving four breaks in series has a pair of fixed contacts carried by each of two insulating supports, the members of each pair being mounted at opposite sides of a separating or barrier portion of the support. Pairs of contacts 13, 14 and 15, 16 are mounted on insulating bushings 3, 4 at opposite sides of barrier portions 11, 12. Contacts 13, 16 are permanently connected by wire 21, and contacts 14, 15 are connected to terminals 5, 6 respectively. The moving contacts 17, 18 are carried by slidable rods 19, 20. The contacts are immersed in oil in a casing 1.
Patent GB-1462691-A (GB)
Title: Circuit breaker
IPC: H01H73/42
Filed: 1974-04-03
Abstract: 1462691 Automatic circuit breakers MATSUSHITA ELECTRIC WORKS Ltd 3 April 1974 [5 April 1973 6 April 1973] 14756/74 Heading H1N A circuit breaker has an insulating casing divided by a horizontal partition 3, the upper compartment housing the actuating mechanism D (forming the subject of Specification 1,462,692) and the lower compartment housing the contacts B and overload trip C (shown from below in Fig. 8). Arc overload-trip armature 25 and a shift element 22 pass through slots in the partition 3, the shift element effecting movement of the contacts. Rotation of the control lever 57 to ON position results in clockwise rotation of arm 40, the end 40a engaging shift element 22 to move it against the spring 23. Contact arms 12 pass through slots in the shift element 22 and are thus moved with it to close the contacts. Energization of any of the trips C results in attraction of armature 25, a projection thereon striking member 49 (Fig. 7) thus disengaging it from the latch 42 to release the arm 40 and shift element 22 which is returned by the spring 23 to open the contacts. The arrangement is "trip-free" and the handle is fitted with a plate to indicate the operating condition of the breaker.
Patent GB-863648-A (GB)
Title: A history-indicating radar system
IPC: G01S7/24
Filed: 1958-05-08
Abstract: 863,648. Pulse radar. RAYTHEON CO. May 8, 1958 [May 9, 1957], No. 14822/58. Class 40(7) In mobile radar apparatus. the video echo signals are recorded by modulating an electron beam in an information-storage device having a storage surface swept by the beam, whose sweep axis is moved in correspondence with the vehicle's course and speed. The stored information is read into a display tube thus affording a display of the recent history of target positions, and may be of the same form as that stored or may be a relative bearing display. In a ship's pulse radar, transmitter 4 provides a synchronizing pulse to trigger switching matrix 6 and plan-position-indicator (P.P.I.) sweep generator 7. Azimuth stabilizer 15 produces a signal representing the angle between the instantaneous direction of the radiated beam and true north and a resolver applies corresponding quadrature signals to sweep generator 7 to cause the radial trace to rotate such that the position on the face of storage tube 10 corresponding to true north is stabilized. The electrical centre of the storage tube P.P.I. sweep is moved in correspondence with the ship's course and speed by two off-centering voltages from "true motion" unit 16 impressed on to deflection coils 9 through amplifier 8. The video echo signals from amplifier 13 are gated in each radar recurrence period for a time corresponding to the radar range required and are written as an electrostatic charge pattern on tube 10, this information being read out spirally by sweep generator 20 for application to short-persistence display tube 12. It is arranged from switching matrix 6 that amplifier 13 is prevented from passing signals for a period of thirty seconds in every 6¢ minutes the track of a moving object on the display thus being broken and the speed thereof ascertainable from a measurement of a "dash" length in nautical miles. Whilst signals are being written in the storage tube range rings 34 from generator 18 are displayed on tube 12. After the termination of the writing period matrix 6 causes spiral sweep generator 20 to read out the stored information for application to display tube 12, also scanned spirally, and to disable the range ring generator. By manipulation of knobs 21, 22 the centre of the P.P.I, sweep is caused to move vertically and horizontally and thus the displayed point representing the ship is maintained on the storage and display tubes. In a modified display the ship's position is displayed centrally and the displayed ship's heading is at the zero mark at the top of the tube thus affording a relative form of display, Fig. 3 (not shown); in this case the range in the display is made one-half that in the storage tube.
Patent GB-856420-A (GB)
Title: Method of making hydrogen peroxide
IPC: C01B15/023
Filed: 1957-05-10
Abstract: In the production of hydrogen peroxide by the successive catalytic hydrogenation and autoxidation of a quinone in a solvent medium, the quinone is 2-ethyl tetrahydroanthraquinone containing 0 to 125% by weight of 2-ethyl anthraquinone and the hydrogenation is terminated before it is more than 55% complete. The degree of hydrogenation should in general be above 20% and may be 44% (Example I) or 54.9% (Example II).  Solvents specified are methyl cyclohexyl acetate alone or together with benzene, diethyl benzene or triethyl benzene, and di-isobutyl, di-n-propyl, diamyl, dihexyl, ethylhexyl, and ethylamyl ketone.  The concentration of tetrahydroanthraquinone may be 40-100% of saturation.  The temperature of hydrogenation may be 50-125 DEG F. The catalyst may be palladium supported on alumina.  After reaction of the hydrogenated solution with air at about 120 DEG F. and extraction with water to remove hydrogen peroxide, the quinone solution may be passed through a bed of active alumina and then subjected to further hydrogenation &c.  Specifications 465,070 and 671,524 are referred to.
Patent GB-560946-A (GB)
Title: Improvements in or relating to the manufacture of electric condensers
IPC: H01G4/228
Filed: 1942-10-23
Abstract: 560,946. Condensers. HUNT, Ltd., A. H., and GROUSE, R. A. Oct. 23, 1942, No. 14927. [Class 37] A condenser is wound of paper 12, 13 metallised with aluminium or magnesium, the edges of the strips being turned over as at 15, 16 to expose the metal at the ends. Copper or silver is sprayed on to the metallising as at 17, preferably through a stencil, while a number of rolls are held in a jig, connection terminals being attached as by solder to the contacts 17. Specifications 485,965, [Group II], 558,687 and 558,688 are referred to.
Patent GB-673851-A (GB)
Title: Improvements in or relating to electrical filter circuits
Inventor: BRAIN ALFRED EDWIN
IPC: H03F1/50
Filed: 1949-06-03
Abstract: 673,851. Electric filters. ELECTRIC & MUSICAL INDUSTRIES, Ltd. June 5, 1950 [June 3, 1949], No. 14986/49. Class 40 (viii). [Also in Group XL (c)] In an electrical filter having input and output shunt capacities, part of these are constituted by the electrodes of a condenser having a movable element which can be adjusted to vary their ratio and also their total. As shown, part of the input and output shunt capacities of a valve coupling network are due to the inherent capacities of valves 15 and 17. The capacity of the left-hand components of variable condenser 16 is connected in parallel with the capacity of valve 17, while the capacity of the right hand components of condenser 16 in series with coupling circuit 14 and 20 is in parallel with the capacity of valve 15. These variable capacities permit ready compensation adjustment of the filter when fresh valves are substituted for valves 15 and 17 with consequent slight alteration in capacity. The filter is completed by resistance 7 and inductance 6, a condenser 12 grounding this part for alternating current. The condenser 16 may be of the kind described in Fig. 2 of Specification 648,228, [Group XXXVI].
Patent GB-409515-A (GB)
Title: Improvements in motor tractors and trailers
IPC: B62D53/08
Filed: 1933-05-24
Abstract: 409,515. Tractor-trailer combinations. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, HUGH, P. G., and SCAMMELL LORRIES, Ltd., 52, High Holborn, both in London. May 24, 1933, No. 15048. [Class 79 (iii).] In a combined tractor and trailer a centrally located steering wheel of the tractor is combined with means for compensating for differences in inclination of the two vehicles when they are being coupled and means are provided for automatically releasing and locking an auxiliary supporting wheel of the trailer when the two vehicles are unlocked, the compensating means consisting of a transverse oscillatable beam carried by the trailer and formed with rollers adapted to be slid into engagement with ramps carried by the tractor. As shown, a turntable 5, Figs. 5, 6, on the trailer is provided with lugs 7 and bolt 28 which passes through an enlarged hole in the centre of a transverse beam 8 carrying ramp wheels 4. The upper side of the beam is provided with a recess on each side of the bolt 28 adapted to form a fulcrum with a bolt 29 on the turntable when the rollers 4 engage the ramps 3 on uneven ground. Springs may be attached to the beam 8 and turntable 5 to maintain the bolts 29 in the recesses in the beam. Rollers are provided on the beam 8 for engagement with spring or manually operated catches on the tractor. The trailer is supported, when uncoupled, by wheels 10 carried by struts 9 pivoted to the turntable or beam 8. The strut 9 is connected to toggle levers 19, 20 pivoted on a rod 16 which carries a roller 17 and locking catches 23. In coupling the ramps 3, Fig. 3, engage the rollers 4 to lift the front end of the trailer, and a curved ramp 18 engages the roller 17 and also strikes a plate 26 on the tail of the hook 23 whereby the toggle is broken and the wheels 10 turned about the pivots of the struts 9, the wheels being maintained in the raised position by the roller 17 riding on the ramp 18. The rollers 4 ride upon the ramps 3 until they strike buffers 6 and the coupling hooks engage. The pivot of the turntable is hollow to receive a slotted plate 66, Fig. 6, through which the trailer brakes are operated from the tractor. The front steering wheel of the tractor, Fig. 8, has a slight castor action and is mounted to rotate on an axle 37 fixed to levers 34, one end of each lever being supported by a spring 36 anchored to the lever and fork 35 and the other having a damping pivot comprising either side plates and interposed rubber &c. washers or a cylindrical brake block 42 embraced by the end of the lever and a band 44 permanently tensioned on the block by a spring 48. Specifications 405,426, [Group XXXII], and 409,417 are referred to.
Patent GB-501639-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/02
Filed: 1937-06-01
Abstract: 501,639. Thermionic valves. BULL, C. S. June 1, 1937, No. 15162. [Class 39 (i)] Relates to hard thermionic valves with rodlike cathodes and control electrodes. Each or the single control electrode is coextensive with and in the same plane as its associated cathode and spaced therefrom by a minimum distance of two-and-a-half times the diameter of the cathode. In embodiments comprising a plurality of control elements and /or cathodes, each cathode is spaced effectively between two oppositely disposed control elements and midway between the boundaries of the complete control element assembly. Thus, in one embodiment, three coplanar cathodes 10, Fig. 4, are spaced between four control electrodes 11 arranged in the same plane in the manner stated above. The circular anode 12 surrounds the whole assembly. In other similar embodiments, a single cathode co-operates with one or two control elements. The cathodes may be of rectangular cross-section. A screen electrode assembly comprising rods 14, Fig. 6, and plates 15 may be provided, the rods 14 being aligned with the rods 11 comprising the control electrode. In a further embodiment, Fig. 5, the cathodes 10 and control electrodes 11 are arranged alternately on a cylindrical surface, and the cylindrical outer anode 12 may be supplemented or replaced by an inner cylindrical anode 12a. The valves may be given variable-mu characteristics by making the control electrode 11, Fig. 8, of non-uniform cross-section, e.g. conical, or the control electrode may be bent, Fig. 9, to provide variable spacing from the cathode 10. Similar modifications may alternatively be made in the cathode structure, Figs. 10 and 11 (not shown). The control electrodes may be cooled by the attachment of radiating fins or made hollow to allow the passage of cooling liquid or may be terminated in liquid-cooled metal blocks.
Patent GB-634086-A (GB)
Title: Improvements in or relating to hydraulic control systems for trailing-edge flaps and the like, for aircraft
IPC: B64C13/00
Filed: 1946-05-20
Abstract: 634,086. Hydraulic control systems. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M. May 20, 1946, No. 15247. Convention date, May 2, 1942. [Class 69 (ii)] [Also in Group XXXIII] In a hydraulic control system comprising a differential area jack A having one end 54 permanently in communication with an accumulator 60 while the other end 53 is selectively connected to the accumulator or to exhaust by means of a valve 62, the jack A has an additional chamber 50 containing a piston 40, the piston rod 45 of which passes through a partition 42 to contact the main differential piston 51 to operate it over part of its stroke. The piston 40 divides the chamber 50 into chambers 43, 44. The chamber 43 is selectively connected to the accumulator or to exhaust through a valve 63 and the chamber 44 is open to atmosphere through a vent 49. Further pistons and chambers may be added to increase the number of control positions. Specification 625,913 is referred to.
Patent GB-838530-A (GB)
Title: Improvements in or relating to manually operated devices for rotating the platen of typewriters or like machines
Inventor: CASTLETON ALBERT EDWARD
IPC: B41J19/80
Filed: 1958-05-13
Abstract: 838,530. Typewriters &c. LAMSON PARAGON Ltd. Nov. 7, 1958 [May 13, 1958], No. 15314/58. Class 100(4) A manually operable device for attachment to the knob of a platen to rotate it for long feeds comprises a base block 1 and a sleeve 10 capable of being screwed together to clamp the device to a platen knob 16. A crank arm 6 having a handle 9 is pivoted by a pin 7 in a recess 4 at the end of the base block 1 and is urged by a spring 8 to the inoperative position shown. The handle 9 can be depressed against the spring 8 until the arm 6 engages a slot 5 in block 1 for rotation of the platen. According to the shape of the knob a plate 14 may be provided for engagement by a flange 13 on the sleeve 10 and washers 20 may be placed between the knob and the block 1. Grub screws 19 may provide additional fixing means. In a modification the sleeve may be clamped to the periphery of the knob in which case its inner end may be made somewhat flexible by the provision of axial slots and may have lugs to engage the inner face of the knob.
Patent GB-806509-A (GB)
Title: Improvements in or relating to electromagnetically driven resonance relays
IPC: H01H51/32
Filed: 1957-05-14
Abstract: 806,509. Electromagnetic interrupters. WESTERN ELECTRIC CO. Inc. May 14, 1957 [May 17, 1956], No. 15330/57. Class 38 (5). A resonance relay in a casing forming part of the magnetic circuit on an insulating plug 11 has two vibratable reeds or tines 39, 40 fixed at one end 36 of a frame 34 supported on a plate 32. A non-magnetic clip 17 on the plug 11 supports a permanent magnet 23 and a coil 26 between plates 27, 28 and a copper damping washer 33. A core member 21 has recesses 20 for prongs 18, 19 of the clip 17 and passes through the magnet 23 near its centre magnetic pole to form a polepiece 41 near the ends of the tines 39, 40 and support the plate 32. The tine 39 carries a contact 44, 45 which, when the tine is vibrated by the A.C. energization of the coil 26 at the resonant frequency, engages a resilient member 46 having one end fixed to an insulated adjustable stud 48 and bearing on an offset cam portion 54 of a further adjustable stud 52. The first stud is used primarily for adjustment of the force between the contacts on engagement and the second stud for adjustment of contact gap. The contacts 45, 46 complete a circuit including plugs 15, clip 17, core 21, plate 32, frame 34, tine 39, stud 48, wire 51 and plug 13. Weights 42, 43 may be adjusted on the tines to set the resonant frequency. The frame 34 is shaped so as to have considerable rigidity in a direction parallel to the flexing plane of the tines, whilst in other planes and in torsion it is relatively flexible. The permanent magnet 23 may be replaced by two magnets having like poles on each side of the core member (Fig. 8, not shown). In Fig. 7, plugs 61, 62 are provided at each end of the casing 60 and the fixed contact is a resilient member 92 fixed at one end to a loop 93 and bearing on the straight end 94 of the loop. The contact gap is set by rotation of a stud 96 on which the loop 93 is mounted and the contact force is set by twisting the loop itself (Fig. 9).
Patent GB-1241994-A (GB)
Title: An improved u-shaped metal joist and assemblies obtained therefrom
Inventor: CAPPELLEN RAOULVAN DER
IPC: E04C3/06
Filed: 1968-03-30
Abstract: 1,241,994. Joists, wall shuttering. COMPAGNIE D'ENTREPRISE C.F.E., 31 March, 1969 [30 March, 1968], No. 15432/68. Headings E1K and E1S. A joist of trapezial shape and U-shape transverse section has plates 3 at each end of its longer side and contains holes 4, 5. End plates 3 are each half the length of the shorter side of the trapesium. Members (6, Fig. 4, not shown) space the webs of two joists. Joists may support shuttering (10, Fig. 5, not shown).