baber/WOPTO huggingface dataset:
Patent GB-1245687-A (GB)
Title: Electric motor propulsion system
IPC: H02K41/025
Filed: 1969-06-04
Abstract: 1,245,687. Linear motors. MERLIN GERIN. 4 June, 1969 [14 June, 1968], No. 28146/69. Heading H2A. In a propulsion system for a number of independent vehicles, e.g. trucks of a conveyer, each having an armature 14, Fig. 4, co-operating with the stator 10 of a linear induction motor carrying a polyphase winding, the winding is divided into a number of electrically separate reactors 16, 16<SP>1</SP>, 16<SP>11</SP> which are cyclically connected to the supply 24, e.g. by sets of diodes such as 18, 18<SP>1</SP>, 18<SP>11</SP> so as to produce a travelling field having zones in each of which the field is of varying strength so as to retain an armature 14 within a zone. In this way, an armature tends to travel in the portion of a zone appropriate to the load in its associated truck. If the truck tends to slow down, the armature enters a portion of the zone of greater field strength and vice versa. Collisions are thus avoided. The varying field may be produced by varying the pole pitch of each winding section or varying the supply frequency or voltage. Fig. 5 shows a waveform produced by varying the supply voltage in which each zone comprises three steps. Alternatively, two steps only may be provided or a sawtooth waveform, Fig. 7 (not shown). Control of the rectifiers in Fig. 4 may be governed by selective switching means and a proximity detector for the armatures so that only the winding sections adjacent the armatures are energized.
Patent GB-439585-A (GB)
Title: Improvements in or relating to locks
IPC: E05B9/06
Filed: 1934-10-03
Abstract: 439,585. Lock cases &c. PARKES & SONS, Ltd., J., and FRYER, E. C., Union Works, Willenhall, Staffordshire. Oct. 3, 1934, No. 28272. [Class 44] For securing a sheet of stainless steel or other metal to the front of a pin tumbler lock or other lock casing or part thereof, or piece of door furniture or part thereof, rivets or studs are welded to the rear of the sheet and pass through holes formed in the flange of the pin tumbler lock or other lock casing &c. and are riveted or otherwise secured behind such flange or part. A plate B is shown secured to the flange a of a pin tumbler lock bv hollow rivets b welded to the back of the plate. Alternatively the rivets may be solid or bifurcated, or studs drilled and tapped axially to take. set screws, or screwed to take nuts, or drilled transversely to take cotters, may be used.
Patent GB-1364962-A (GB)
Title: Power transmission
IPC: F16H47/04
Filed: 1972-06-16
Abstract: 1364962 Variable-speed gear ORSHANKSKY TRANSMISSION CORP 16 June 1972 [21 June 1971] 28280/72 Heading F2D A split-torque hydro-mechanical variablespeed gear on a motor vehicle or machine tool, providing two; three or four stages of operation during each of which a hydrostatic variable drive in one branch is cycled through its full range to permit selective synchronous clutching of the succeeding stage, comprises a planetary assembly having an input member, e.g. first carrier 30; two coaxial output members, e.g. first ring gear 34 and second carrier 37; and a common reaction member, e.g. first and second suns 33, 41; and speed varying means such as a variablestroke hydraulic pump 24 and fixed-stroke motor 46 for causing the speed of one planetary output member 34 or 37 to increase whilst that of the other simultaneously decreases whereby the planetary output members can be clutched synchronously to a final output shaft 50 to provide continuous ratio variation as the variable gear is cycled through its range in both directions. In a two-range form, shown in Fig. 1, the common reaction suns 33, 41 are geared at 43, 44 to the motor 46; the connected first carrier 30 and second ring 36 secured to a wheel 28 meshing a wheel 34 which can be clutched at 25 to a shaft 23 of the pump 24, driven constantly by a main input shaft 20; and the two output members, first ring 34 and second carrier 37 are selectively clutchable at 54, 52 respectively to a main output shaft 50. A wholly hydrostatic starting phase, followed by two hydro-mechanical stages are provided as follows. For the starting phase, forward or reverse, the clutch 25 is released and a clutch 49 engaged to provide hydrostatic drive in the appropriate direction depending on the direction of adjustment of the pump stroke, from the motor 46 through wheels 47, 48, 26, 28 to the input carrier 30, and also through meshing wheels 44, 43 to the common suns 33, 41, drive issuing to output 50 through the clutch 52. At the end of hydrostatic range stage 1 is entered by releasing the clutch 49 and engaging 25 synchronously so that the first carrier 30 is now driven mechanically from the input-driven pump shaft 23, whilst the common suns 33, 41 are driven hydraulically by the motor 46 through the meshing gears 44, 43. The clutch 52 is engaged for the first stage, and the variable gear cycled through its range after the clutch 52 can be released and 54 engaged synchronously for the second stage, during which the hydraulic gear is cycled back through its range. Fig. 5, not shown, provides an additional output train with a reaction brake for a third stage, whilst Fig. 8, not shown, has two such output trains for four stages.
Patent GB-1427480-A (GB)
Title: Electric switch device responding to a load
IPC: H01H35/00
Filed: 1974-06-26
Abstract: 1427480 Limit switches SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 26 June 1974 [15 Sept 1973] 28305/74 Heading H1N An electric switch for detecting the load on a vehicle seat has a switching member 20, Fig. 2, coupled to a seat spring 12 through an actuating rod 15 which is frictionally slidable within the switching member 20 whereby excess motion is taken up to prevent damage to the switch. The switching member 20 may be made of elastic material and has slots 21 to provide additional resilience in the region of the frictional grip and a cam face 22 which holds spring blade contacts 18, 19 separated until the seat spring 12 is depressed. One end of the rod 15 carries a plastic sleeve 14 having an open eyelet 13 for releasable attachment to the seat spring 12. The other end of the rod 15 has a punched section 16 to prevent its withdrawal from the casing 25.
Patent GB-172180-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B15/00
Filed: 1920-10-06
Abstract: 172,180. Baral, K. T. Oct. 6, 1920. Brush stocks.-A brush comprises a back 1 having a recess 12 to receive a brush stock comprising two sections 5, 6 provided with spaced bristlecarrying members 9, the brush back being provided w i t h a spring - pressed latch 16 and socket 13 for engagement respectively with a notch 15 and stud 14 formed on the brush stock. The ends of the bristle-carrying members 9 are prefera b 1 y bevelled, as shown at 10, to engage with undercut edges 11 formed on the side portions 7 of the sections 5, 6. The sections are preferably made of metal to withstand a sterilizing degree of temperature and the action of cleansing-compositions. The side portions 7 may also carry bristles.
Patent GB-1062019-A (GB)
Title: A yarn winding apparatus, a method of distributing yarn along the axis of a rotatingbobbin, and a yarn package
IPC: D01H1/36
Filed: 1964-07-09
Abstract: The ring of a spindle of a spinning machine is reciprocated between two cam surfaces of a shape as specified precisely in the Specification and which are rotated, so that the limits of the reciprocation of the ring are cyclically varied to produce a package having a cylindrical central part, tapered ends, and a smooth varying curvature between the central part and the tapered ends.  A hydraulic cylinder reciprocates one or more rings, either directly or through a bell crank lever, the cylinder being reversed by micro-switches which are attached to the ring and are actuated by direct or indirect contact with the cam surfaces.
Patent GB-533936-A (GB)
Title: Improved multiple airscrew drive
IPC: B64D35/04
Filed: 1939-10-21
Abstract: 533,936. Driving aircraft propellers. HERRING, A. E. Oct. 21, 1939, No. 28414. [Class 4] A pair of propellers mounted on a single shaft are driven in opposite directions by gearing mounted in the hub of one of them. The propeller 8 is mounted directly on the engine shaft 9 and may have means for varying the pitch. The propeller 7 is mounted by ball bearings 60, 61, on a cage 53 which is fixed to the engine casing and has ball bearings 58, 59, between it and the shaft 9. The cage 53 carries a plurality of pinions 48 gearing with an internal gear 46 in the propeller hub and a spur gear 47 fixed to the shaft 9.
Patent GB-1280354-A (GB)
Title: Nitrofuran derivatives
Inventor: HOYLE WILLIAM
IPC: A23K1/16
Filed: 1969-06-05
Abstract: 1280354 Antimicrobial compositions containing nitrofuran derivatives CIBA-GEIGY AG 5 June 1970 [5 June 1969] 28421/69 Headings A5B and A5E [Also in Division C2] Antimicrobial nitrofuran derivatives of formula I:  (in which R 1  is H or COR 3  where R 3  is H, C 1-3  alkyl or C 2-6  alkenyl, and R 2  is H, C 1-3  alkyl or C 3-4  alkenyl, provided that R 1  and R 2  are not both H) may be mixed with pharmaceutically acceptable carriers to form pharmaceutical compositions, or added to animal feedstuffs as growth-promoting substances, or used to treat an organic material susceptible to bacterial or other microbial attack to protect the material from such attack. The organic material may be a natural or synthetic polymeric material, a proteinaceous or carbohydrate substance or a natural or synthetic fibre or textile material prepared therefrom. The pharmaceutical compositions have antibacterial, anthelminthic, coccidiostatic, tryponocidal and antimalarial activity and may be in a form suitable for topical or oral administration. The compositions may also contain other active ingredients such as 8-quinolinol derivatives, sulpha drugs, chloramphenicol or tetracycline or other antibiotics, halogenated salicylanilides, carbanilides, benzoxazoles or benzoxazolones, polychloro-hydroxy-diphenyl-methanes, halogenhydroxydiphenyl sulphides or ethers, quaternary ammonium compounds, or dithiocarbamic acid derivatives. Specific compounds are named. Carriers which themselves have pharmacological activity, e.g. sulphur and zinc stearate, can be used.
Patent GB-846435-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: G01G1/26
Filed: 1958-09-04
Abstract: 846,435. Weighing apparatus. DE IONGH, J. H. Sept. 4, 1958 [Sept. 5, 1957], No. 28442/58. Class 143 In a weighing apparatus comprising a beam 1 on which the load acts in one direction and is counterbalanced by a weight 4, spring or the like tending to rotate the beam in the other direction, balance of the beam is effected by varying the point of application of the weight 4 and on the beam 1 by displacement of a transmission member 9 along said beam without displacing the weight 4 per se, the member 9 transmitting a constant force due to the weight 4 whatever its position along the beam, and the displacing force being an outside force, not furnished directly by the out of balance of the beam, which does not per se exert any reaction forces on the beam. As shown the weight 4 is supported on a vertical arm 5 of a parallelogram linkage 5, 7, 8, the arm 5 having a lateral extension 6 parallel to the beam 1 and providing an upper track for a carriage 9 which has rollers 10, 11 bearing respectively on the extension 6 and the beam 1. The carriage 9 is carried at one end of a rack 12 operable by a pinion 14 to move the carriage along the beam. The pinion 14 may be operated by an electric, pneumatic, hydraulic or like motor controlled by the out of balance condition of the beam in known manner. Fig. 4 shows an arrangement wherein the balance weight 4 is suspended by a spring 30 from one end of a plate 29 which is pivotally anchored at its other end to overlie the beam 1, the undersurface of the plate forming the upper track for the carriage 9. A dashpot 33, 34 may be associated with the weight 4.
Patent GB-728950-A (GB)
Title: Improvements in and relating to electric contact making devices
Inventor: ROMMEL FREDERICK EMIL
IPC: H01H1/34
Filed: 1950-11-28
Abstract: 728,950. Making electric contact springs. TELEPHONE MANUFACTURING CO., Ltd. Nov. 28, 1950, No. 28498/53. Divided out of 728,891, [Group XXXVII]. Classes 83 (2) and 83 (4). Contact springs for an electric contactmaking device as set forth in Specification 728,891 are adjusted by bending the fixed springs in alternate directions with a decreasing deflection until they are accurately spaced from each other.
Patent GB-976116-A (GB)
Title: Improved method and apparatus for preventing the formation of devitrification lumps in sheet glass drawing chambers
IPC: C03B15/06
Filed: 1962-07-24
Abstract: To prevent devitrification in the free flow zones of a sheet glass drawing chamber, the glass melt 4 in the vicinity of the bottom section 7 disposed below a drawing nozzle 6 and in the vicinity of corners of the chamber formed between the bottom section 7 and adjoining wall sections 2, 3 is additionally heated not by electrodes but by means of heater elements 8 protected against attack by the glass melt, the additional heat being such as to compensate for heat losses due to radiation from the chamber.  The elements 8 are individually arranged in protective tubes 9 having internal insulation, each having a separate connecting cap 10 for the current. <PICT:0976116/C1/1> <PICT:0976116/C1/2> The are arranged as shown, extending parallel to the end wall 2 along the bottom 7 and superposed along the wall 2 to maintain the areas, shown hatched, at a temperature 20-30 DEG  C. above the upper devitrification point of the glass.  The tubes 9 may be of steel protected by a flame sprayed coating of, for example, aluminium oxide.  Positions of the heating elements are also shown for a nine-drawing chamber arrangement.
Patent GB-1501308-A (GB)
Title: Method of regenerating a weak base anion exchanger material
IPC: B01J49/00
Filed: 1976-07-08
Abstract: 1501308 Ion-exchange HOOGOVENS IJMUIDEN BV 8 July 1976 [9 July 1975] 28506/76 Heading B1J The regeneration of a weak base anion exchanger in the form of a particulate mass is effected by passing a slurry of lime in water having a calcium hydroxide concentration in the range of 1 to 5% by weight upwardly through the mass while the mass is in a compacted state, with a flow rate of at least 10m<SP>3</SP> per hour per m<SP>3</SP> of the mass. The flow rate is such as to compact the resin bed at the top end of the vessel. Thereafter, the regenerating agent is displaced and the mass rinsed with water. Rinsing may be effected with the mass still in a compacted state, but preferably is effected while the mass is completely expanded and preferably while introducing air. The method allows the use of as little free space above the bed as 30% of the space occupied by the mass. It is particularly applicable to macroporous exchangers. The spent resin may have been used for desalination of brackish water which has already passed through a strong acid cation exchanger. Reference has been directed by the comptroller to Specification 1471162.
Patent GB-1006399-A (GB)
Title: Improvements relating to decorative laminated wood panels
IPC: B27D1/00
Filed: 1963-07-18
Abstract: 1,006,399. Laminates. ASAHI TOKOSHU GOHAN KABUSHIKI, KAISHA. July 18, 1963 [July 18, 1962], No. 28544/63. Drawings to Specification. Heading B5N. An adhesive bonded, laminated, decorative wood panel comprises a base wood member, a decorative face veneer layer and a fibrous interlayer having a thickness of from 0À04 to 0À3 mm. The base may be a single wood layer or plywood made from, e.g. Lanan or Douglas Fir. The fibrous interlayer may be a woven or non-woven sheet preferably made from regenerated or other cellulosic fibres such as cellulose acetate or viscose rayon, although natural cellulosic fibres such as cotton and hemp, inorganic fibres such as glass or metal, or synthetic fibres such as polyamide, polyester, polyolefine and polyacrylonitrile may be used. When a woven fabric is employed, the ratio warps: woofs is preferably of the order 30/70 : 70 to provide greater strength in the woof direction; the woof direction is then arranged at right angles to the direction of the wood fibres of the base. Suitable adhesives for uniting the layers are thermoplastic resins such as polyvinyl acetate or thermosetting resins such as melamine-urea formaldehyde, urea formaldehyde or melamine formaldehyde; alternatively, a mixture of a thermoplastic resin and a thermosetting resin may be used. In assembling the laminate, a wet process may be employed whereby an adhesive impregnated interlayer is placed between a base layer and a face veneer and the whole is subjected to heat and pressure; alternatively, the adhesive may be applied to the base and allowed to dry, whereupon the interlayer is applied by hot pressing, a face veneer is then applied either by the wet or dry process. In examples, the wet process is carried out using an adhesive prepared by mixing 70 parts of a melamineurea resin (solids content 70%) and 30 parts of a polyvinyl alcohol; the dry process is carried out using an adhesive comprising 50 parts of a urea resin adhesive (solid content 70%) and 50 parts of polyvinyl acetate (solids content 50%), drying being effected at 20‹ C. for 5 hours.
Patent GB-248083-A (GB)
Title: Improvements relating to voltage regulating systems for alternating-current feeders
IPC: G05F1/24
Filed: 1924-11-28
Abstract: 248,083. Johnson, E. M., Ryder, C., Benton, L. C., and Metropolitan- Vickers Electrical Co., Ltd. Nov. 28, 1924. Drawings to Specification. Systems depending on static transformers. - Dangerorus or inconvenient disturbances in feeder voltage, consequent upon the switching in or out of a transformer or auto-transformer used for boosting, are avoided by shunting the primary 'by an impedance element during the switching operation. This may be supplemented by shortcircuiting the primary or secondary windings and, 'in addition, an impedance element may be used in series with the primary windings. In an arrangement employing all a short-circuit upon a resistance shunting the primary is re- - moved simultaneously with the connection of the primary with the mains through a resistance; the series resistance is then short-circuited and the shunt resistance open-circuited. These operations are reversed upon switching out. They are automatically controlled by a voltage solenoid in shunt with the feeder which controls electromagnetic switches interlocked with each other. Various arrangements are described. The impedance elements may be inductive or non-inductive or they may be reactances. The system is applicable to single-phase, two and three wire, circuits and to polyphase, three or four wire, circuits. The boosting transformers may be indirectly energized through permanently connected transformers. The Provisional Specification also describes an arrangement for an autotransformer involving automatic switches which first remove a short-circuit on the secondary and then short-circuit a resistance in series with the primary to bring the transformer into operation.
Patent GB-813264-A (GB)
Title: Improvements in and relating to modulating circuit arrangements particularly for voice frequency telegraph systems
Inventor: LEITH ANDREW ALLAN
IPC: H04L27/04
Filed: 1955-10-07
Abstract: 813,264. Keying carrier frequencies. ERICSSON TELEPHONES Ltd. Oct. 7, 1955, No. 28580/55. Class 40 (5). [Also in Group XL (b)] In a modulating circuit for a carrier transmission system in which a source of pulsating current is connected to the input of a ring modulator and the output of said modulator is divided and applied to separate parts of a primary winding of a transformer whose secondary winding is connected to the carrier transmission system, the connection in one way of the poles of a direct-current source to the modulator and transformer causes pulsating current to be suppressed from the transmission system, the connection of the poles of the D.C. source in the reverse way to the modulator and transformer permits pulsating current to pass to said transmission system, and pulsating current is suppressed automatically from the transmission system at all times that the said D.C. source is disconnected from said ring modulator and transformer. When the telegraph transmitter contact is on S the applied positive potential renders the elements MR9, MR10 and MRB2 of low impedance, whilst the elements MR 11, MR12 together with the bridge MRB1 are of high impedance. The voice-frequency current applied at OS1, OS2 to the primary winding of the transformer TA flows to the primary winding of the transformer TB from which it is impressed on the windings 1, 2 of its secondary winding.. Owing to the low impedance of the rectifier bridge MRB2 current flows through the winding 3 of the transformer TC and a current flow takes place in the opposite direction through resistor R and the winding 4 so that a very low output passes from the secondary winding of the transformer TC to the leads CL1, CL2 and the passage of tone current to the carrier equipment is virtually suppressed. When the contact of the D.C. transmitter is changed over to M, the rectifiers MR9, MR10 present a high impedance and MR11, MR12 have a low impedance. Also the bridge MRB1 is of low impedance, whilst the bridge MRB2 assumes a high impedance. The current through the primary winding 3 of the transformer TC is relatively small whilst the current passing through the primary winding 4 and the bridge MRB1 shunted by a relatively high resistance R1 is considerable so that tone current passes to the secondary winding of the transformer TC and over leads CL1, CL2 to the carrier equipment. When the D.C. keying arrangement is disconnected the elements MR9 ... MR12 have equal impedance and with the ring modulator shown no appreciable current flows through the primary winding of the transformer TB and current from the tone source is unable to pass to the leads CL1, CL2 and the carrier equipment.
Patent GB-213514-A (GB)
Title: Self-loading motor truck
IPC: B60P1/38
Filed: 1923-11-13
Abstract: 213,514. Haney, E. H. Nov. 13, 1923. Roller-way conveyers.-The floor of a vehicle is formed by two or more sets of rollers 2, 3, which are rotated on spindles 2<a>. The several sets of rollers are driven from a shaft 13 by a wide pinion 12 which may be adjusted to engage one or more pinions 9, 10 each driving one set of rollers through chain-and-sprocket gear. The forward set of rollers may thus be stopped when the forward part of the vehicle has been loaded. The shaft 13 may be driven from the engine of the vehicle through change-speed mechanism.
Patent GB-957312-A (GB)
Title: Improvements in or relating to bathroom construction
IPC: A47K4/00
Filed: 1960-08-18
Abstract: 957,312. Baths, basins &c. R. ROTHMAYR. Aug. 18, 1960 [Aug. 20, 1959], No. 28627/60. Heading A4N. A wash-basin 7 partially overlapping one end of a bath 2 is arranged obliquely thereto being supported by a hollow triangular plinth 3. The bath and basin have a common water supply controlled by a change-over valve 9. A cabinet 19 is carried by a hinged door 18 providing access to the plumbing. A further change-over valve 10 is provided to control a spray. The whole arrangement may be in the form of a preassembled unit. A toilet bowl 24 is also arranged obliquely to the bath.
Patent GB-243012-A (GB)
Title: Improvements in or relating to bogies for railway cars and the like
IPC: B61F5/30
Filed: 1925-11-13
Abstract: 243,012. Aktiebolaget Svenska Kullagerfabriken. Nov. 17, 1924, [Convention date]. Axle-trucks and bogies; springs, arrangement of, and mounting bodies on.-A bogie frame 1 is supported on longitudinal side beams 4 by means of springs 3. The side beams are rigidly connected together by cross-members 5 and the end of each beam is suspended from a lug 7 on an axle-box 2 by a pin 6. Each beam 4 may consist of two parallel bars. Thus, the rigid frame 4, 5 is suspended from all the journal boxes at positions immediately below the axes of the axles received in the box, and the latter will be permitted to turn about the axes of the pins 6 with respect to the frame 4, 5 but are prevented from individual tilting transversely of the frame.