baber/WOPTO huggingface dataset:
Patent GB-711999-A (GB)
Title: Improvements in and relating to automatic washing machines
IPC: D06F33/02
Filed: 1952-04-24
Abstract: 711,999. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. April 24, 1952 [April 24, 1951], No. 10329/52. Class 38(3) [Also in Group VIII] In an automatic washing machine (see Group VIII) having a first electric motor 20 for driving separately a basket and agitator means, a second electric motor 36 driving a process timer controlling the duration and succession of the various steps of the washing operation, and a manually operated member for setting the process timer, the two motors are connected in parallel to form a first circuit branch to which is connected in series a second circuit branch comprising control means for the washing liquid supply, and means are movided for automatically eliminating the second circuit branch when a predetermined quantity of liquid is contained in the tub of the machine, so that the electric motors are fully energized for their operation after the supply of liquid is terminated. The impedance of the liquid supply means is substantially greater than that of the drive motor 20 and substantially less than that of the timer motor 36. When the drive motor circuit is interrupted and the liquid supply means connected directly in series with the timer motor, only the timer motor is operated. The liquid supply means includes a cold water solenoid 27 and a hot water solenoid 28 connected in parallel. The time motor drives a shaft 37 on which are fixed a series of cams 31 ... 35. By rotating the cam shaft 37 manually to the position shown, cam 32 closes switch contacts 32A and hot water is supplied to the clothes basket of the machine until liquid overflows into a surrounding tub to a depth sufficient to operate a switch 40 to open contacts 40a and close contacts 40b. When switch 40 is operated the water supply valves close and the drive and timer motors are energized. The drive motor 20 has a main winding 20b and a start winding 20a the latter being cut out by a centrifugal switch 20c when a predetermined speed is reached. The motor 20 rotates in one direction to oscillate an agitator for washing and rinsing, and in the opposite direction for spin drying. At the end of the agitation and spin drying periods cam 33 opens switch contacts 33a to stop the motor 20. and cams 34 and 35 operate switches 34A-34S and 35A-35S respectively to reverse the connections to the start winding 20a. When switch 33a is closed again the motor 20 is started in the opposite direction. Specifications 619.422, [Group VIII], 636,039, 678,669. [Group XXVI], 681,970 and 706,500, [Group XXIV], are referred to.
Patent GB-253296-A (GB)
Title: Improvements in or relating to fluid pressure indicating or recording apparatus
IPC: G01L7/00
Filed: 1925-04-21
Abstract: 253,296. Gregory, V. H. April 21, 1925. Elastic - diap,hragm pressuregauges. - Comprises a resilient diaphragm or capsule which, after a predetermined movement, is reinforced by a resilient member to prevent deformation or straining. In Fig. 1 two sensitive diaphragms 1 forming the capsule to the inside of which pressure fluid is admitted by way of the hollow boss 4 are reinforced by two resilient annular metal abutments 2 attached at their peripheries to the diaphragm. In a second form the abutments 2 are arranged inside the capsule which is submitted to an internal negative pressure. In another modification, one diaphragm 1 may be made stiff and the other sensitive diaphragm provided with a resilient reinforcing abutment.
Patent GB-990087-A (GB)
Title: Improvements in and relating to artificial flowers
Inventor: BENKERT BRUNO
IPC: A41G1/00
Filed: 1962-03-19
Abstract: 990,087. Artificial flowers. M. A. BENKERT. July 31, 1962 [March 19, 1962], No. 10431/62. Heading A4X. In an artificial flower comprising a support member 13 passing through aperture 11 in a plurality of petal elements 10 either the aperture edge or the outer surface 12 of the member 13 is serrated or both are serrated. A flange 14 on member 13 limits the distance through which the petal rings can be forced downwards. Specification 990,086 is referred to.
Patent GB-1337199-A (GB)
Title: Process and apparatus for curving a sheet of glass
IPC: C03B23/035
Filed: 1971-04-21
Abstract: 1337199 Bending sheet glass SAINT-GOBAIN 21 April 1971 [23 April 1970] 10509/71 Heading C1M In the bending of a glass sheet, the glass sheet is heated to bending temperature and is applied to a mould of the desired shape by reducing the atmospheric pressure between the opposed surfaces of the sheet and the mould and in the region surrounding the periphery of the mould so that the sheet is applied to the mould surface. A glass sheet 1 passes on rollers 7 through a furnace 3, a bending cell 4, conditioning cell 5 and removal area 6, the rollers 7 have separate transmission systems in each section and the heating means 8, 9 in furnace 3, 12, 13 in cell 4 and not shown in cell 5 are each controlled by thermocouples 10, 11; 14, 15 and not shown, respectively. In cell 4, a mould 16 or 24 is mounted in a shroud 17 on a column 19 movable vertically by a ram 20. The shroud 17 fits over the edges of mould 16 or 24 with a small clearance and is connected by pipes 18 to a suction device. The mould 16 may also be provided with small diameter ducts 23 (Fig. 5) to its operative surface and connected by duct 21 to a suction device. The mould may be convex or concave and in each case may have a complementary frame, as frame 28 (Fig. 13) or lower mould which may be solid or with ducts to a suction device. In operation, when the sheet 1b is curved by suction between mould 16 or 24 and the sheet, the ram 20 is operated to raise the mould and a carriage 22, on its own or with the complementary frame or mould, which has been pre-heated in cell 5, is moved into cell 4 on rails 33 and the mould 16 or 24 with attached sheet lowered to close to the frame, mould or carriage 22 and suction stopped so that the curved sheet drops by gravity, with suction from the lower mould if provided. The carriage 22 is then removed through cell 5 to the removal area 6. Particularly for convex mould 24 (Fig. 13), to assist bending of the edges, the frame 28 is used to press upwards by counterweights 29 mounted on pivots 30 on the carriage 22. Rollers 7 are preferably of small diameter and made of cast silica covered by a sleeve of woven refractory fibres such as silica fibres. The moulds and frames are of castable refractory cement or similar non-deformable material.
Patent GB-710594-A (GB)
Title: Improvements relating to rotary-piston engines, pumps, compressors and like machines
IPC: F04D9/04
Filed: 1952-04-25
Abstract: 710,594. Rotary pumps and engines; centrifugal pumps. WERNERT, K. April 25, 1952, No. 10549/52. Classes 110(1) and 110(2) The size of the working chamber of a rotary pump 9 (or engine) is varied by fluid under pressure acting upon the top of a stator- 4 against the action of a spring 10 and/or magnetic means. Inlet and outlet ports 11. 12 are provided, and a vane 3 is carried in a rotor 2 on a shaft 1. The pump may be used to prime a centrifugal pump having a rotor on the same shaft, lubricant for the rotary pump being supplied from a shaft bearing. A flexible diaphragm 8, preferably acid-resisting, may be acted on externally by delivery fluid from the centrifugal pump 7 to force the stator 4 downwards as the fluid pressure increases. In Fig. 4 the inlet 11 is connected' to a suction pipe 14 of the centrifugal pump 7 and sucks out the air to prime the pump 7. When the latter is filled with liquid it transmits pressure to the stator 4, through a pipe 16, gradually rendering the pump 9 non-effective. An automatic valve 15. which may be a ball-valve. remains open so long as there is no liquid in the valve housing, but when liquid from pump 7 enters, the ball valve closes. A return coil spring 10, for the stator, may be replaced by, or used in conjunction with, an electromagnet.
Patent GB-544097-A (GB)
Title: Improvements in or relating to wireless receivers comprising band-spread tuning means
IPC: H03J3/10
Filed: 1940-06-19
Abstract: 544,097. Wireless receiving apparatus. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 19, 1940, No. 10593. Addition to 536,412. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 23, 1940.] [Class 40 (v)] [Also in Group XXXVI] Relates to band-spread tuning arrangements as described and claimed in the parent Specification, in which one kind of reactance (condenser or inductance) is variable for coarse tuning and part of the other kind of reactance (inductance or condenser) is variable for fine band-spread tuning. According to the invention, the fine band-spread tuning device which also operates a pointer over a band-spread scale is provided with means for independently adjusting the starting point and the length of movement of the tuning member corresponding to the complete displacement of the pointer over the scale. In the arrangement shown in Fig. 4, the fine tuning is performed by the adjustment of a core 42 in an inductance coil 43. The core 42 is attached to a rod 39, which is guided in a sleeve 40 by a disc 41 and has a flange 4 urged against a plunger 3 by a spring, not shown. The core 42 is thus adjusted by the displacements of the plunger 3. The plunger 3 is adjusted on its carriage 1, by means of a screw thread on the plunger to adjust the starting position of the core 42. The plunger carriage 1 carries. a disc 6 bearing against a lug 7 on a lever 8 rigid with a lever 36 and a rod 37 and pivoting about a spindle 9. The rod 37 bears against a nut member 33 engaged by a screw 25 on the spindle 24 of a drum 26 adjusted by gearing 30, 31 operated by a knob on the spindle 32. The adjustment is transmitted to a pointer by a cable 27 and to the core 42 by the lever 8 co-operating with the disc 6. The disc 6 is on an adjustable screw 5, which in the starting position, is parallel with the lever 8, so that the adjustment of the screw 5 has no effect on the starting position. This adjustment, however, alters the effective length of the lever 8 and therefore adjusts the full displacement transmitted to the core 42.
Patent GB-1529946-A (GB)
Title: Silencers for centrifugal blowers
IPC: F02M35/12
Filed: 1976-03-03
Abstract: 1529946 Fan intake silencer FANS & BLOWERS Ltd 3 March 1976 [13 March 1975] 10612/75 Heading F1B A centrifugal fan has an intake silencer comprising a channel or tubular member 22, preferably open at both ends 30, and having at least one wall of a passage defined by the channel or tubular passage covered with sound absorbing material 36 e.g. polyurethane foam. The channel or tubular member 22 covers an intake port 20 of the fan. The member sidewalls may also be covered with sound absorbing material as may be the fan housing wall 14 defining the intake port 20. To prevent ingress of dirt a wire mesh 34 may cover each inlet 30.
Patent GB-1171601-A (GB)
Title: Mineral Mining Machines
Inventor: GUPPY GEOFFREY ALBERT
IPC: E21C27/34
Filed: 1966-03-10
Abstract: 1,171,601. Mineral-mining ploughs. COAL INDUSTRY (PATENTS) Ltd. 24 Feb., 1967 [10 March, 1966], No. 10614/66 Heading E1F. A cutter tool-carrying plate 5 is so associated with the ploughing head 1 of a mineralmining plough 2 that it is positionally adjusted relative to the head according to the operating conditions to be encountered by the plough. Preferably the plate may be slid relatively to the head by suitable powered means such as a double-acting, hydraulic operated ram 8.
Patent GB-106507-A (GB)
IPC: C21B7/18
Abstract: 106,507. Deutsche Maschinenfabrik Akt.-Ges. March 30, 1916, [Convention date]. Guided skip hoists.-A charging- bucket m is carried by a trolly f up the inclined track a and is transferred automatically to the supporting member w of a second transporting-device by the relative turning movement of the parts of the trolly at the upper end of the track. The two parts e, f of the trolly are connected by a pivot g and provided with rollers which run on the three parts b, c, d into which the track divides at the top of the incline. The hook i is formed with a projection o in which is a slot for the axle f<1>, and is pivotally mounted in a projection h formed on the part e of the trolly. A rod r connects the projection h and a crank q fixed to the axle f<1>. An arm s is fixed to the axle f<1>. When the bucket reaches its highest position, Fig. 1, the part x of the stem k is guided automatically into the supporting member w, but as the outer end of the part e continues to move upwards the relative movement of the parts e, f causes further rotation of the axle f<1>, and the arm s bears against the stop t. The projection o and hook i are then moved into the position shown in Fig. 2, in which the stem is free from the hook i.
Patent GB-710682-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K21/20
Filed: 1952-04-28
Abstract: 710,682. Alternating current motors. BRITISH THOMSON-HOUSTON CO., Ltd. April 28, 1952 [April 27, 1951], No. 10652/52. Class 35 A self-starting synchronous motor has the stator and rotor teeth of equal pitch, the rotor 1 comprising two laminated members 7, 8 carrying two groups of teeth 9 mutually displaced by half-tooth pitch, the stator comprising sections with teeth 16 so arranged that the teeth of a section are angularly displaced in relation to the rotor teeth when those of a neighbouring section register with the rotor teeth. The rotor also includes a magnet 2 polarized axially. The teeth 16 on each of the stator poles are advanced one-fourth-pitch from the teeth on the preceeding pole; thus there is half-tooth pitch difference between the teeth on opposite stator poles, e.g. teeth on poles 12, 14. Now, because of phase displacement caused by a condenser 24, Fig. 4 (not shown) and because of the stator teeth advancement, the rotor is caused to rotate as it experiences a repulsion on one set of its toothed members and an attraction on the other set, both these repelling and attracting forces assist the rotor to revolve in one direction. The stator core 11 is mounted on a non- magnetic, e.g. die cast, casing 17. Specification 641,243 is referred to.
Patent GB-1005776-A (GB)
Title: A device for laterally guiding running webs
IPC: D21F1/36
Filed: 1962-03-20
Abstract: 1,005,776. Guiding webs transversely. P. G. FADUM. March 20, 1962 [April 10, 1961], No. 10686/62. Heading B6B. A roller 1 for transversely guiding a web 14 comprises a hollow cylinder, e.g. of paper layers glued together which tapers slightly towards its ends. The cylinder 1 can tilt upon divergence of the web 14 about an axis A-A. A rod 2 is carried by stands 3, 4 and comprises tubes 5 screwed to a central sleeve 6, the tubes being prevented from rotating by a key 7, Fig. 5 (not shown). The rod 2, Fig. 2, is axially adjustable by a spindle 9 having a squared end 10. The sleeve 6 has hollow pivots 13 sloping forwards relative to the direction of travel of the web 14, Fig. 1, and carrying ball-bearings 15, Fig. 3, for supporting a sleeve 17. The sleeve 17 carries a ring 19 having a small clearance in the roller 1 and surrounding a ball-bearing 20. Gaskets 20, 21 enclose a space to which lubricant is supplied through conduit 22. A ring 23 of yielding material is compressed by a ring 24 to engage the inner surface of roller 1.
Patent GB-475266-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J43/02
Filed: 1936-04-14
Abstract: 475,266. Electron multiplier valve. BULL, C. S. April 14, 1936, No. 10717. [Class 39 (i)] To reduce the shot noise in a valve a secondary emitting cathode 5 is used which emits secondaries to primaries in the ratio of 3000 to 1; the elements of the cathode are of aluminium the surface of which is oxidized and provided with a very thin coating of caesium oxide. Primaries from a thermionic cathode 3 are accelerated by an anode 4 to impinge on the cathode the secondaries under control of a grid 6 in their path being collected by the anode. The primary electrons may be prevented from impinging on the anode by focusing or shading. The grid 6 may be supported on the cathode 5 by insulating material. The cathode 5 may be formed of one rod only or it may be in the form of a cylinder enclosing a cylindrical grid and anode round a central thermionic cathode. The voltages on the electrodes are specified. The secondary cathode when cylindrical may be cooled by immersion in liquid air.
Patent GB-664551-A (GB)
Title: Automatic frequency control systems
IPC: H03L7/12
Filed: 1949-04-22
Abstract: 664,551. Automatic frequency control systems. STANDARD TELEPHONES & CABLES, Ltd. April 22, 1949 [April 29, 1948], No. 10748/49. Drawings to Specification. Class 38 (iv). A reference oscillator of high stability, e.g. crystal controlled, is frequency-modulated by a low-frequency, e.g. mains voltage, and beat with the oscillator to be controlled in frequency and the difference frequency passed through a discriminator comprising a capacitor and resistor in series. It is shown mathematically that the output after detection is the modulating low-frequency shifted in phase by 90 degrees due to the differentiating action of the discriminator and of constant amplitude for large differences in frequency of the controlled and reference oscillators but diminishing amplitude for small differences, and of opposite phase for different senses of the frequency deviation. After a further 90 degrees phase shift by a tuned transformer coupling the lowfrequency is applied in equal phase to rectifier valves energized in push-pull from the lowfrequency source so that a D.C. voltage is derived of a polarity to correct frequency drift of the oscillator. Alternatively the detector output and low-frequency may be applied to a two-phase motor operating a frequency adjusting mechanism.
Patent GB-549888-A (GB)
Title: Improvements in and relating to aircraft
IPC: B64C33/00
Filed: 1941-08-23
Abstract: 549,888. Ornithopters. FISCHER, G. A. Aug. 23, 1941. No. 10766. [Class 4] A flapping wing machine comprises wings 1 mounted on leaf springs 7 carried by normally fixed but adjustable levers 9, cables 3 extending from the wings around pulleys 4 carried by a cross bar on a reciprocating rod 11 and, after passing over fixed guides, being anchored to the ends of the levers 9 of the opposite wings. A spring 6 acts on the cross-bar in opposition to the air pressure on the wings and the rate of flapping is determined by a power driven cam 5. The rear edges of the wings have slits 12 to form overlapping strips which separate on the upstroke and open mouthed conical or cylindrical pockets 9 are formed on the wings to trap air. The forward edges of the wings are downwardly curved. The position of the levers 9 is adjusted by arms 8 movable by gearing so as to alter the mean position of the wings, this being upwardly tilted for alighting, horizontal for normal flight and downwardly tilted for rising. The wings may be set in their horizontal position for gliding, and be movable forwards and backwards about pivots on the levers 9 for controlling longitudinal balance. According to the Provisional Specification the upward movement of the wings winds up a flat spiral spring.
Patent GB-129092-A (GB)
Title: Improvements in or relating to Apparatus for Obtaining High Tension One-direction Currents from Three-phase Currents.
Inventor: CORBINO ORSO MARIO
IPC: H02M1/30
Filed: 1918-06-29
Abstract: 129,092. Corbino, O. M., and Trabacchi, G. C. June 29, 1918. Commutator - switching arrangements.-Hightension unidirectional currents for X-ray work are obtained from an induction coil supplied from a three-phase system through a mercury jet interrupter, and a high-tension rotary selector switch is connected in the secondary circuit. The coil has six primary windings 1 - - 6 wound in the same direction and connected between the phase leads a, #, gamma and the contacts a - - of the mercury jet switch g, the jet of which is connected to the neutral N. The secondary winding of the coil is connected to the terminals R, R<1>, and the load circuit to the terminals U, U of the rectifying-switch. The switch has three rods spaced at the corners of an equilateral triangle and carrying contact arches h, h<1>, j, j<1>, &c. The shaft A is driven by a synchronous motor and carries a metal ring k with three aluminium arms m, n, p to engage the upper fixed contacts. Between these arms are arranged insulating-rods i with aluminium extensions a, b, c. A similar arrangement of contact-arms engages the lower fixed contacts, and the upper insulated contacts a, b, c are connected to the lower contacts a<1>, b<1>, c<1>. As the switch rotates, the horizontal connexions U', R' and R, U are completed, and then the vertical connexions R, U<1> and U, R'. In a modification, where no neutral conductor is employed, two connected mercury jets are used. In another modification, the connexions are such that current pulses to magnetize the cores in one direction only are permitted to flow through the primary windings.
Patent GB-1061635-A (GB)
Title: Measuring system
Inventor: HANKEN ALBERT FREDERICK GERARD
IPC: G01G7/06
Filed: 1964-03-13
Abstract: 1,061,635. Determining moisture content. INDUSTRIAL NUCLEONICS CORPORATION. March 13, 1964, No. 10819/64. Heading G1N. In an apparatus for the quantitative determination of at least one property e. g. moisture content of a dielectric material, electrical signals f 1 , f 2  at different respective frequencies from two sources 16, 17, are applied to the material M by a capacitive probe, 12 separate signals each influenced by both the mass of the material and its dielectric properties are derived from the probe, and combined to produce a continuous resultant signal that is a function of the ratio of the magnitudes of the separate signals, and the output frequency from one of the sources is arranged to be controlled in response to variations in the resultant signal, the adjustment to effect control being arranged to operate means for indicating the value of said property. The oscillator output signals are applied to a bridge 10 including the probe 12 and the unbalance signals are separated by filters 25, 26 after amplification in amplifiers 23, 24. The signals are rectified in detectors 27, 28, and applied to resistors 30-32, a signal being developed at wiper 31a in the event of a change of ratio, and being applied over a servo loop to adjust the frequency of signal f 2  to restore the ratio. Recorder 52 indicates the position of a frequency adjusting wiper which is indicative of moisture content. The capacitor may be of the fringe field type.
Patent GB-599266-A (GB)
Title: Improvements in and relating to folding racks for plates, saucers, cups and the likeutensils
IPC: A47J47/16
Filed: 1945-04-30
Abstract: 599,266. Making plate &c. racks. SMART, V.C. April 30, 1945, No. 10820. [Class 83 (ii)] [Also in Group VI] In a folding rack for plates &c., a pair of racks proper 1, 2 which are adapted to fold into a closed box 3, have plate supporting divisions formed by punching slots 27 in the surface of curved sheets of metal. The sheets are stiffened by having their longitudinal edges 28 beaded or spun so as to receive rods 29 secured at their ends to the end members of the racks. The Provisional Specification states that suitable metals are steel, aluminium and their alloys.