baber/WOPTO huggingface dataset:
Patent GB-1382670-A (GB)
Title: Electromagnetic rotor position detector
IPC: H02K29/12
Filed: 1972-04-24
Abstract: 1382670 Dynamo-electric machines COMPAGNIE GENERALE D'ELECTRICITE 24 April 1972 [29 April 1971] 18966/72 Heading H2A A rotor position sensor in a brushless electric motor comprises a slotted stator carrying exciter and detector windings co-operating with a cam carried by the motor rotor. Fig. 1 shows a developed view of part of a 24 slot stator in which each detector winding, e.g. D1, occupies two adjacent slots, e.g. 2, 3, and the exciter windings comprise two overlapping series of coils having their coil sides in alternate slots. The sensor shown is for a motor having a twopole rotor and the cam has a single cut-out 25. For a six pole rotor motor the cam has three cut-outs, Fig. 4 (not shown), spaced at 120 degree intervals and the sensor stator has three groups of 12 detector windings, each group occupying 120 degrees of the stator periphery, and each winding is connected in series or parallel with two other windings at 120 degree spacing.
Patent GB-895833-A (GB)
Title: A circuit arrangement for converting and amplifying ignition impulses for grid-controlled vapour or gas discharge devices
IPC: H02M1/04
Filed: 1959-06-03
Abstract: 895,833. Converting. LICENTIA PATENTVERWALTUNGS G.m.b.H. June 3, 1959 [June 4, 1958], No. 18990/59. Class 38 (2). [Also in Group XL (c)] Pulses for controlling a gas or vapour discharge tube p2 are fed at a, b to a single-shot blocking oscillator comprising a transistor p1 whose emitter-collector circuit is connected to the primary winding of a transformer t1. This transformer is provided with a secondary winding t12 supplying the grid voltage to the tube p2 through a resistor r2 and with a feedback winding t13 connected to the base-emitter circuit. As shown, a valve n2 prevents the input pulses from being short-circuited by the feed-back winding. In an alternative arrangement this valve is bridged by a resistor and a voltage source is included in the feed-back circuit so that collector current is caused to flow exclusively through the base and not the emitter. A valve n1 and resistor r1 are provided to permit demagnetizing current to flow in the transformer during the blocking period. The magnitude and duration of the pulses to the valve p2 are constant being determined by the saturation of the transformer core and the dimensions of the feed-back branch.
Patent GB-530738-A (GB)
Title: Improvements in and relating to display devices
IPC: G09F13/24
Filed: 1939-06-29
Abstract: 530,738. Moving signs. EVERY, C. E. (Biolite Inc.). June 29, 1939, No. 18992. [Class 3 (i)] A display device of the kind in which a lowtemperature boiling liquid contained in a transparent display tube formed as a design, such as lettering &c. is caused alternately to vaporize and condense is characterized by the display tube forming part of a closed system through which the liquid continuously circulates. Fig. 2 shows a vaporizing chamber A connected by a tube C to a condensing chamber B which gives a pressure head to condensed liquid 13 which flows down a tube D to the display letters 37, 41, 45 and back to chamber A. Two or more immiscible liquids may be provided in the same circuit and they may be differently coloured. The liquids may pass through the display tubes in continuous phase or in disperse phase. Fig. 2 shows one liquid in disperse phase in part of the other liquid, but liquids which form a cloudiness in another may be employed, or others of such relative boiling point and specific gravity, as will form short alternating columns in the tubes. When a single liquid is employed, its visibility may be increased by adding colouring matter or by suspending in it solid particles. Mention is made of the following liquids as suitable, benzol, methyl and ethyl alcohol, with or without water.
Patent GB-716752-A (GB)
Title: Improvements in apparatus for dispensing liquids, creams and pastes
IPC: B05B11/00
Filed: 1952-07-28
Abstract: 716,752. Dispensing measured quantities of liquids. NEWTON CHAMBERS & CO., Ltd., and BOVILL, P. J. C. June 18, 1953 [July 28, 1952], No. 18996/52. Class 106(5) Apparatus for dispensing liquids creams and pastes such as soap pastes comprises a laterally squeezable elastic bag 1 confined within a housing 5 and furnished with a downwardly directed self-sealing discharge orifice 3, a non-return valve 6 for admitting some of the substance to be dispensed from a storage receptacle 12 into the interior of the bag, and means 7 for applying lateral pressure to the bag to force some of its contents through the discharge orifice. The means 7 comprises a pivoted handle with a hump 9 which passes through a slot 10 in the housing 5 when the handle is operated by the fingers of an upturned hand thereby delivering a quantity of the substance into the palm of the hand. Return of the substance to receptacle 12, which may be a bottle, is prevented by the valve 6 which consists of a loose disc co-operating with a cylindrical bore in its closed position and a lugged bore in its open position. To facilitate replacement of the bottle 12, the apparatus is pivotally mounted on a plate 14 and held in its normal position by a snap fastener 16. Alternatively, the apparatus may have means for detachably mounting it on a vertical surface.
Patent GB-1041841-A (GB)
Title: Improvements in woven fabrics and brassieres made therefrom
IPC: A41C3/00
Filed: 1963-05-14
Abstract: A fabric for making brassieres consists of a ground fabric of soft yarns, to which spaced monofils, or groups of monofils, are attached by the weft, the monofils being flexible but stiffer than the ground yarns.  The monofils may be of nylon or polyester, and the ground yarns may be of nylon, polyester, rayon, cotton, or silk.
Patent GB-249389-A (GB)
Title: Improvements in or relating to apparatus for delivering liquids in measured volumes
IPC: B67D7/16
Filed: 1925-04-28
Abstract: 249,389. Hardesty, B. F. April 28, 1925. Fixed-chamber apparatus.-In liquid measuring apparatus operating as described in Specification 249,346 the liquid supply pipe 41 is led above a spreader 46 which showers the liquid around the edge of the measuring float 45. The float is guided by the supply pipe 41 and the overflow pipe 43, the latter having fingers 47 at its upper end. The measuring chamber is formed of a base section 30, a cylinder 32 of metal or glass, and a top plate 33, the whole being bolted together. A belt or chain 48 which connects the float with th discharge-valve actuating gear passes over pulleys and through a belt duct 52. The float is made of aluminium.
Patent GB-390488-A (GB)
Title: Yellow screen for signalling purposes
IPC: H02K1/24
Filed: 1931-07-02
Abstract: 390,488. Colour filters. AVRIL, G., Saverne, Bas-Rhin, France. July 2, 1931, No. 19115. Convention date, Oct. 30, 1930. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 97 (i).] A filter for absorbing red light, intended particularly for signalling purposes, consists of a yellow glass layer combined with one or more layers of green, blue, or white glass, the supplementary layers serving for absorbing the excessive red rays transmitted by the yellow glass. The several layers may be welded together or merely placed one above the other.
Patent GB-1511354-A (GB)
Title: Distance measuring apparatus
IPC: G01S17/87
Filed: 1975-05-07
Abstract: 1511354 Optical distance-measuring NATIONAL RESEARCH DEVELOPMENT CORP 27 April 1976 [7 May 1975] 19218/75 Heading H4D Optical distance measuring apparatus comprises a master unit M and slave unit S, each with a laser L M , L S , and a modulating cavity C M , C S , for transmitting polarization modulated beams Mb 2 , Sb 2  over a path the length of which is to be measured, the beam Sb 2  being modulated in accordance with the modulation phase of the received beam Mb 2  and the path length being derived from the modulation phase of the received beam Sb 2 . Lasers L M , L S , provide beams Mb 1 , Sb, which pass through plane polarizers MP 1 , SP, and then modulating cavities C M , C S  to produce the polarization modulation of outgoing beams Mb 2 , Sb 2 . The beam Mb 2  passes through a variable light path device VP and is received by a telescope T S  of the slave unit S and directed on to a reflector SR 5 . Beam Sb 2  is received by telescope T M  of the master unit M and directed on to a mirror MR 5 . Beams Sb 3 , Mb 3  from reflectors SR 5 , MR 5  pass through modulating cavities C S , C M  which produce further polarization modulation in the outgoing beams Sb 4 , Mb 4  which are directed through plane polarizers SP 2 , MP 2  to produce amplitude modulated beams Sb 5 , Mb 5  which are directed on to photodetectors PD S , PD M  e.g. photo-multipliers. The output signal from detector PD S  modulates an HT generator (not shown) of the laser L S  producing an amplitude modulated beam Sb 1 , whilst the output from detector PD M  is amplified by an amplifier A and displayed on an indicator I. By changing the frequencies of modulation of the cavities CM, C S  and adjustment of the variable light path device VP until I indicates a minimum the distance measured is determined in fractions of a metre, then in units of metres, then in tens of metres and so on. Instead of device VP, the modulation frequencies of the cavities could be adjusted until I indicates a minimum. Polarization-modulation in the cavities C M , C S  is achieved by crystals which display the direct Pockels linear electro-optic effect. Each cavity C M , C S  contains two crystals with their x-axes perpendicular to each other, producing elliptical polarization of beams Mb 1 , Mb 3  and Sb 1 , Sb 3  respectively in accordance with the electric field applied and the length of the light path within each crystal. In alternative embodiments, lights of two or more colours may be used. A further modification, Fig. 4 (not shown), replaces the plane polarizers MP 1 , SP 1 , and MP 2 , SP 2  by circular polarizers, and the detector arrangement PD M  is modified to display Lissajous figures on an oscilloscope which figures are adjusted to give lines, by variation of the variable light path device VP, from which the path to be measured is determined.
Patent GB-577704-A (GB)
Title: Improvements relating to dumping grabs
IPC: B66C3/02
Filed: 1944-10-06
Abstract: 577,704. Grab-buckets. PRIESTMAN BROS., Ltd., and CHILD, A. Oct. 6, 1944, No. 19221. [Class 78 (iv)] In grabs of the type in which the sheave block travels on tubular telescopic guides which extend from the grab head to the inner ends of the jaws, the upper telescopic member h of each pair of guides h, k is pivoted to one end of a lever r, the other end of which is pivoted to the grab head a at s. Each lever r moves in a slot in a guide t. The tubes k pass through thimble-shaped guides p, q on the lower sheave block b, and terminate in fittings comprising a collar l, socket o and connecting plate n. These plates are mounted on the pivots g of the links m which connect the jaws c. Additional guidance for the telescopic members h, k is provided by a long bolt y, Fig. 2, which is secured by a stud y<2> to the base of the tube k and is passed through an aperture in a disc h<2> 'mounted at the bottom of the tube h. The pin and slot connection between the levers r and tubes h shown in Fig. 1 may be replaced by a construction in which a disc is mounted to rotate freely in the end of each lever rand carries an eccentric pin which engages with holes in the forked upper end of the corresponding tube h.
Patent GB-501496-A (GB)
Title: Processes of preparing liver extracts
IPC: A61K31/00
Filed: 1938-06-29
Abstract: 501,496. Liver extracts. KEIL, H. L. June 29, 1938, No. 19250. [Class 81 (i)] Liver extracts are freed from impurities, in particular from small amounts of proteins, glycogen, dextrins, glucose and lipoids, by mixing a paste of the water-soluble constituents of liver with aqueous alcohol of 60-80 per cent by volume and cooling the mixture to at least -15‹ F., preferably to 20‹F., and removing the insoluble substances which separate. The alcohol used is preferably of the strength of 70 per cent by volume. The alcoholic solution is evaporated in vacuo to. a thick syrup ; this is warmed and to each 100 grams ' are added about 800 cc. absolute alcohol; the mixture is allowed to settle, the alcohol decanted off and the residue dried under vacuum to a pasty consistency.
Patent GB-264741-A (GB)
Title: An improved lock striker or keeper
IPC: E05B63/12
Filed: 1926-08-04
Abstract: 264,741. Viehweger, A. F. W. Aug. 4, 1926. Locks, cases for; locks, preventing destruction of; striking-plates for locks.-To prevent tampering with locks having a portion of the casing 10 adapted to be received by the keeper 11, the bolts 12 are engaged by inwardly-facing hooks 15 on spaced parts of the keeper. The bolts 12 and recesses 17 form a dovetail connection, and one or both recesses are closed at one side by walls 18. The keeper has an attaching plate 19 with a flange 20.
Patent GB-1102415-A (GB)
Title: Improvements in vehicle lamps
Inventor: WALKER RONALD
IPC: B60Q1/04
Filed: 1965-05-07
Abstract: 1,102,415. Clamps. HILLCREST ENGINEERING Ltd. 5, May, 1966 [7, May, 1965], No. 19277/65. Heading E2B. [Also in Division F4] A vehicle lamp especially a reversing lamp for mounting on a vehicle bumper bar consists of a housing 10 supported by a mounting member which also provides a socket for the bulb and includes a pivot for mounting a pair of clamping members 46, 47 which grip the vehicle bumper. The members 46, 47 are T- shaped with turned-down ends 48, 49 (not shown) which are apertured to receive a bolt 45. The mounting member consists of two legs riveted inside the housing and a sleeve portion through which the bolt 45 passes. The housing is closed by a lens 12 of acrylic resin secured in place by screws adjacent the side walls which enter sockets in the housing. The front wall 35 of the lens may be ribbed internally.
Patent GB-287763-A (GB)
Title: Improvements relating to cigarette and like holders
IPC: A24F13/10
Filed: 1927-07-20
Abstract: 287,763. Drews, J. O. July 20, 1927. Cigarette holders.-In a cigarette or like holder comprising a mouthpiece and stem 1 and a cigarette holding portion 2, a device for ejecting cigarette ends comprises a weight or hammer 6 and an integral or separate striker pin 7, the weight sliding in a chamber 5 formed in the portion 2 by a restriction 8 serving as a guide for the pin 7. The weight and pin have a longitudinal smoke bore 10, or are fluted or polygonal in section. In modifications, the weight is a ball separate from the pin 7, the forward end of the part 1 being notched to prevent the draw passage 4 being closed, or the passage 4 being eccentric. The weight 6 may be cushioned by a light spring.
Patent GB-530802-A (GB)
Title: Improvements in or relating to welted foot-wear
IPC: A43B9/04
Filed: 1939-07-03
Abstract: 530,802. Boots &c. CHAUSSURES UNICUSINES FENESTRIER SOC. ANON. July 3, 1939, No. 19371. Convention date, July 6, 1938. [Class 17 (ii)] In a welted boot, a layer 20 of cork is arranged beneath the usual filling material 19, and is covered on its face and side edges by a sheet of crepe rubber or other flexible material 21. A crepe sole 24 is arranged beneath this sheet, and a crepe or other flexible strip 27, sewn in with the inseam, is stuck to the edge of the sole 24. The Specification as open to.inspection under Sect. 91, also describes a construction in which the lower edge of the strip 27 is turned outwards and sewn to the outer sole. This subject-matter does not appear in the Specification as accepted.
Patent GB-459454-A (GB)
Title: Improvements in or relating to ring and traveller apparatus for use in machines for twisting and doubling yarns, and for covering cores
IPC: D02G3/36
Filed: 1935-07-06
Abstract: 459,454. Covering cores by winding. GOSHAWK, E. R., HALL, H. W., and FINE COTTON SPINNERS' & DOUBLERS' ASSOCIATION, Ltd., St. James's Square, Manchester. July 6, 1935, No. 19373. [Class 109] [See also Group IX] In ring and traveller apparatus for covering cores, the ring rotates with the package from which the covering material is drawn, the traveller legs embrace the upper and lower tracks of the ring, and the material is engaged by the traveller on the outside of the ring, the traveller being so formed that a part is interposed between the strand and the ring and is adapted during operation to hold the strand clear of the ring. The traveller is of steel spring wire looped to form an eye 22 and legs 23, 24 embracing the rim of the ring, the eye being in the same plane as or perpendicular or inclined to the shank. The ring comprises a disc 16 with a rim 15, which carries the traveller and may be internally recessed to carry lubricant, and with a hub 17 suitably secured to a tube 12 on the spindle and extended to provide a projection 20 around which a broken end may wrap. The tube 12 may be provided with a mushroom head to which a radial internal flange of the ring may be secured. In the arrangement shown in Fig. 4, a core 36 is covered by strand or tape from a cross-wound cheese, the covered material being led to the upper side of a bobbin rotated by an intermediate roller 43 from the driving-roller 29 or to the lower side of the bobbin which is then driven directly by the driving-roller. If a wooden flanged bobbin is used to carry the supply package, the flange is recessed to permit free rotation of the traveller, and in the case of an aluminium bobbin the flange 56, Fig. 8, is spot-welded at 57 to a smaller flange 55 spun over from the barrel.
Patent GB-664653-A (GB)
Title: Improvements in and relating to electric pulse signalling systems
Inventor: LEVY MAURICE MOISE
IPC: H03K9/04
Filed: 1949-07-22
Abstract: 664,653. Pulse modulation circuits. GENERAL ELECTRIC CO., Ltd. July 21, 1950 [July 22, 1949], No. 19378/49. Class 40 (v). Time-modulated pulses are converted to amplitude-modulated pulses by establishing a datum charge in a capacitor at regularly recurring intervals, causing the charge to change thereafter until halted by a time-modulated pulse and preserving the resulting charge until the next datum-establishing time. In the embodiment described, each signal pulse is preceded by a close pair of synchronizing pulses of opposite polarity, these pairs occurring at regular intervals. The receiver 13 supplies the negative signal pulses to the cathode of diode 14 and the synchronizing pulse separator 15 feeds the pairs of synchronizing pulses to the point 16. The first and negative synchronizing pulse renders diode 18 conducting to discharge the capacity 20 which comprises a Miller integrator valve 21 having an output terminal 25. The immediately following positive synchronizing pulse charges condenser 26 through diode 19 and this condenser commences to discharge through diode 27 into the capacity 20 rendering the terminal 25 progressively more negative. When the following negative time modulated signal pulse arrives at diode 14 the diode conducts to discharge condenser 26 and thus render diode 27 non- conducting so that condenser 20 retains the charge thereon until the next pair of synchronizing pulses initiates the next cycle of operations. The discharge of condenser 26 into condenser 20 may be neutralized by applying a steady positive potential to terminal 16 between the synchronizing signals and connecting the terminal directly to condenser 26 through resistance 38. Distortion due to the triangular portion of the output amplitude modulated pulses may be reduced by reducing the resistance 38 to add a suitable amount of energy to each pulse. Alternatively the output pulses may be gated to remove the triangular portions. Specification 664,622 is referred to.
Patent GB-199616-A (GB)
Title: An improved force cup for clearing bath, sink and other traps and waste pipes
IPC: E03C1/308
Filed: 1922-07-14
Abstract: 199,616. Marsh, H. B. July 14, 1922. Cleaning, fluid-pressure processes for.-A forcecup for cleaning waste pipes &c. comprises a frame with a lower ring and an upper disc or its equivalent spaced apart., a rod adapted to slide through the upper disc and attached to an expansible bellows-like cup secured at its open end to the lower ring. In the construction shown, a disc 1 and lower flat ring 2 are rigidly spaced by staymembers 3. A tube 4 is clamped centrally through the disc and serves as a guide for the rod 5 which is fixed to the upper bellows plate 6. The latter preferably consists of two plates between which the cloth of the bellows cup 8 is clamped. The material of the cup is doubled over after passing the ring 2 and encloses a rubber ring 9, the whole being secured by a rivet through the ring 2 and an internal ring 10. The rubber ring may, however, be contained in a separate cloth pocket having a flange to secure it to the ring 2. A light helical spring 11 or a plurality of spaced-apart bands serve to prevent the cup from collapse.
Patent GB-859742-A (GB)
Title: Improvements in and relating to washing machines for lengths of flexible material inopen width
IPC: D06B3/20
Filed: 1958-06-18
Abstract: <PICT:0859742/IV (c)/1> <PICT:0859742/IV (c)/2> Material 3 is guided in a zigzag path around rollers 7, 71 disposed alternately above and in washing liquid, there being located in the liquid between adjacent runs of material freely-rotating rollers 9, 91 of non-circular cross-section about their rotational axes which are driven by contact with the material.  As shown in Fig. 1 rollers 9, 91 preferably have longitudinal ribs, edges or rods the rotation of which cause the displacement of material from its vertical path.  As shown in Fig. 2 the rollers 9, 91 may be disposed in upper and lower horizontal planes.  Rollers 9, 91 may be transversely spaced and successively located in upper and lower planes (see Fig. 1), those in the upper plane preferably extending partly out of the liquid.
Patent GB-1451330-A (GB)
Title: Hitch assembly
IPC: B62D53/02
Filed: 1973-09-04
Abstract: 1451330 Scraper bowls CATERPILLAR TRACTOR CO 4 Sept 1973 [5 Sept 1972] 19598/76 Divided out of 1451329 Heading E1F [Also in Divisions B7 and F2] A bowl scraper 15, Fig. 1 is supported on a tractor 13 by a hitch assembly, Fig. 2, comprising links 28, 33, 34, 35 and a self-levelling fluid suspension system, the system comprising a piston-cylinder unit 44, a hydropneumatic accumulator 45, 46, a source 50 of fluid pressure, a reservoir, and a valve spool 83, in a control valve 54, which places the chamber 44a of the unit in communication with the source or sink or isolates it, depending on the height of the unit, in response to movement of a height indicating linkage 155, 156 connected between the valve spool and one of the hitch links, the valve spool being releasably held by a detent (116, Fig. 3 not shown) so that there is lost motion at the linkage before height correction begins. This provides a "dead band" surrounding the mean height of the unit, to ensure that the levelling operation is not triggered by dynamic variations in the height of the unit, only by changes in the static load in the scraper. The height indicating linkage has a leaf spring 156. This may be arranged horizontally (Fig. 5 not shown) instead of vertically. Change in the height of the unit is accommodated by the leaf spring without movement of the valve spool until the force stored in the spring is sufficient to overcome the spring force holding a ball in a groove in the valve spool (Fig. 3). Parent Specification 1451329 has substantially the same disclosure, but claims a fluid suspension system with means for selectively connecting the normally vented rod chamber 44b to the chamber 44a to lower the piston. For Figures see next column