baber/WOPTO huggingface dataset:
Patent GB-777673-A (GB)
Title: Acoustic transmitting device
IPC: H04R1/22
Filed: 1955-10-21
Abstract: 777,673. Sound transmitting devices. STANDARD TELEPHONES & CABLES, Ltd. Oct. 21, 1955, No. 30160/55. Class 40 (4). An earphone comprises a yoked magnet 1 with coils 3 to excite a rocking armature 4 which is attached at one end to a membrane 5 which is mounted with and bears peripherally against a perforated disc 6. The earphone is contained in a casing 8 closed by a perforated front plate 7 and is characterized by a damping disc 9 engaged peripherally between the disc 6 and the plate 7, the centre portion of the damping disc resting against a projection 12 on the disc 6. The damping disc, which is of metal foil, may or may not be perforated; if it is, the perforations are arranged with respect to those in disc 6 and plate 7 so that there is no direct path from an aperture in disc 6 to an aperture in plate 7. A projection 25 on the front plate 7 holds the disc 9 against the projection 12. A thin plastic membrane may be disposed between the damping disc 9 and the front of plate 7 to protect the earphone interior. The magnet, and terminals 22, are mounted on one side of a ring 24 the other side of which has a plane surface against which the membranes and discs are clamped by the front plate 7, a skirt portion of which is turned over the rear edge of the ring 24. The casing 8 is secured by a skirt 29 turned over the front edge of plate 7. A curve (not shown) of the frequency response of the earphone is given in which the perforations in the disc 6 have an area of 100 mm.<SP>2</SP> while those in the damping disc 9 and front plate 7 each have an area of 25 mm.<SP>2</SP>. Specifications 606,012 and 666,408 are referred to.
Patent GB-210189-A (GB)
Title: Improvements in mud-guards for vehicles
IPC: B62D25/18
Filed: 1922-11-04
Abstract: 210,189. Fairclough, W. Nov. 4, 1922. Mud-guards. - A detachable mud-guard for road vehicles comprises transverse channelpieces 2 upon the guard adapted to slide on to brackets 3 on the vehicle and to be bolted by bolts 7 which are passed through the guard and engage with slots 6 in the end of the brackets. The nut 8 fits into a recess in the underside of the slotted part of the bracket 3. A flat spring 12 prevents rattle. Specification 135,446 is referred to.
Patent GB-234530-A (GB)
Title: Improvements in and relating to illuminating devices for simulating daylight
IPC: H01J61/40
Filed: 1923-11-30
Abstract: 234,530. St. Clair, A. R. Nov. 30, 1923. Overhead lamps for dust-laden atmospheres are provided with colour screens for simulating daylight. The lower portion of the casing is provided with an opening for cleaning purposes, and the upper sloping portion A terminates in a cylindrical portion A<3> containing baffles to prevent the deposit of dust by reason of the circulation of the air through holes in the plate A and the upper part of the cylinder A<3>. The holder for the screen may be hinged to the casing A.
Patent GB-1493274-A (GB)
Title: Door fastening device
IPC: E05C9/08
Filed: 1975-07-21
Abstract: 1493274 Rotary keepers FICHET-BAUCHE 21 July 1975 [6 Aug 1974] 30434/75 Heading E2A  A rotary keeper, mounted for instance on a door jamb, cooperates with a rotary bolt on the door to effect a tight seal. The rotary keeper 145 is mounted on a member 113 which can slide along passages 108, 109 of stationary mounting 102. Link 117 is pivoted to mounting 102 at 118 and to the keeper by pivot 153.  Bolt p is inserted into the keeper 145 until its end t forces ball 141 back against spring 137 so that the end 139 of plunger 136 is outside the passage of the keeper 145. This permits the keeper to be rotated by a handle with the bolt p. Such rotation causes the member 113 to slide towards the mounting 102, thus pulling the door, via bolt p, tightly against the jamb (Fig. 9). To open, the bolt is rotated in the reverse direction so that springs 121, 122 can push member 113 away from mounting 102. The bolt is rotated until the position of Fig. 1 is regained and then removed, allowing plunger 136 to re-engage keeper 145.
Patent GB-1516324-A (GB)
Title: Transport systems
IPC: B60L13/03
Filed: 1975-07-21
Abstract: 1516324 Magnetically levitated transport systems G HEIDELBERG 21 July 1975 [26 July 1974 17 Oct 1974] 30453/75 Heading B7L A transport system comprises a vehicle 9 which is magnetically supported by attraction of permanent magnets 1 for movement along a track defined by a polyphase travelling field stator member 2, the air gap 4 between the stator member 2 and pole faces of the magnets 1 being controlled by spacing means. The permanent magnets are spaced by a distance related to the pitch of the polyphase stator winding in such a way that a synchronous linear motor is defined. The spacing means maintain the air gap within limits which allow the synchronous linear motor to operate so as to propel the vehicle along the track. The spacing means may be electro-magnets 5 disposed as shown on Fig. 3 adjacent the magnets 1 on side arms 10 of the vehicle 9, variation of the current in coils 8 of the electromagnets 5 being utilized to weaken or intensify the field produced by the permanent magnets. The magnets, 1, 5 are attached to the body 24 of the vehicle 9 by resilient members 11 and stabilizing arms 12; and their pole faces are covered by plate 17 which provide sliding surfaces for possible contact with further non-conductive plates 17 on the underside of the stator 2. Stator 2 comprises vertically arranged laminations of ferro-magnetic material and has slots in its underside in which is located a three-phase winding, the conductors of each phase occupying every third slot and producing a linear motor effect to propel the vehicle. For lateral guidance of the vehicle, electromagnets 13 on the vehicle co-operate with laminations 15; and guide elements 20 and 21 of which the former element is retractably mounted on the vehicle co-operate with guide blocks 18. In a modification, Fig. 7 (not shown), the electromagnets 5 are extendable and retractable relative to the permanent magnets 1 so that the mean size of the air gap 4 may be adjusted to compensate for changes in vehicle weight, it being intended to minimize current in the electromagnet by equating the lifting force of the magnets 1 to the vehicle weight. Further electromagnets (6) may be provided on the vehicle 9 above the stator 2. An alternative form of spacing means is the use of wheels which do not normally support much, if any, of the vehicle weight which is substantially borne by the permanent magnets.
Patent GB-1190810-A (GB)
Title: Improvements in or relating to Gear Systems through which a Shaft is Driven
Inventor: FIRTH ARTHUR JOSE
IPC: B23Q5/48
Filed: 1967-07-03
Abstract: 1,190,810. Screw-cutting lathes. COLCHESTER LATHE CO. Ltd. 30 Sept., 1968 [3 July, 1967], No. 30482/67. Heading B3T. [Also in Division F2] A gear-box for a screw-cutting lathe provides a ratio between two shafts of 288: 7315 (very closely approximating to 1: 25À4) so that English and metric screw-threads can be cut on the same machine. The gear-box includes selectable auxiliary step-up or step-down gearing so that a range of multiples or fractions of the basic ratio can be obtained. In the drawings, the ringed numbers indicate the teeth numbers on respective gear-wheels. In Fig. 1, a lathe spindle 1 drives a gear-box input shaft 4 via gears 2, 3, 5. For metric threads, a clutch 7, 8 is engaged and a 4 T.P.I. lead-screw 14 is driven via a shaft 9, a shaft 16, and gears 19, 15. Either gear 18 is slidable to mesh any one of gears 20, or shaft 16 carries an array of gears (not shown), each having a number of teeth which is a multiple of 11, selectively driven by the gears 20. For English threads, a clutch 11, 12 is engaged, and gears 6, 17 meshed, to drive the lead-screw 14 via gears 6, 17, the shaft 16, the shaft 9, and the clutch 11, 12 (Fig. 2, not shown). To cut a 19 T.P.I. pipe thread, clutches 7, 8 and 11, 12 are both engaged for a straight through drive. The leadscrew 14 moves a nut 21 connected to a threadcutting tool.
Patent GB-1435407-A (GB)
Title: 2,10-disubstituted-3,4-diazaphenoxazines their preparation and  compositions containing them
IPC: C07D498/04
Filed: 1974-07-10
Abstract: 1435407 Diazaphenoxazines VSES N-I KHIMIKOFARMATSEVTICHE INST IM S ORDZHONIKIDZE 10 July 1974 30617/74 Heading C2C Compounds of the general Formula I (R = alkyl, aryl, dialkylaminoalkyl; R 1  = alkyl, aralkyl, dialkylaminoalkyl; X = O, S) and the hydrochlorides of those compounds containing a basic substituent are prepared by replacing Cl in the corresponding 2-chlorodiazaphenoxazine by RX, optionally followed by salt formation. The above compounds are pharmacologically active (I, RX = #-diethylaminoethoxy, R 1  = Me is an antidepressant) and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-442388-A (GB)
Title: A square and mitre attachment for carpenters rules and the like
IPC: G01B3/56
Filed: 1934-10-25
Abstract: 442,388. Squares. GOODING, M. C., 1, Barham Road, South Croydon. Oct. 25, 1934, No. 30631. [Class 97 (iii)] A triangular plate in the form of a 45‹ isosceles triangle has a stamped up flange b extending at right angles to the hypotenuse and a sliding member c is provided with an upturned edge c<1> so that a carpenters rule may be gripped between the two flanges c<1>, b and clamped by screw d. The edges of the plate are turned down as at a<1> to form bearing surfaces.
Patent GB-442310-A (GB)
Title: Improvements in or relating to locks
IPC: E05B65/00
Filed: 1934-10-26
Abstract: 442,310. Latches. PRESSED STEEL CO., Ltd., Cowley, Oxford, and TITMUSS, C. S. W., 26, Rosebery Road, Smethwick, Staffordshire. Oct. 26, 1934, No. 30717. [Class 44] A latch for a refrigerator door &c. comprises a spring-pressed latch mounted on the door jamb or the door and adapted to be moved out of the path of a cammed striker plate by a direct thrust imparted from a handle mounted respectively on the door or door jamb. A latch 15 having a bevelled end or carrying a ball or a roller 16 is slidably mounted in a cylindrical sleeve 13 on the door jamb and moves under control of a spring 44 within limits set by a screw 14 moving in a slot in the cylinder. When the door is shut the roller 16 engages a slope 46 on a striking plate 43 carried by the door and maintains the door tightly closed against a sealing strip 47. To open the door, a handle 57 is moved to project a member 39 against the end of the latch to force the latter out of the striking plate, the member 39 having an inclined end which forms a continuation of an inclined surface 45 on the striking plate so that the pressure of the roller 16 assists in opening the doors.
Patent GB-1076474-A (GB)
Title: Improvements in or relating to electromagnetic cut-outs
IPC: H01F7/08
Filed: 1964-08-04
Abstract: 1,076,474. Electromagnetic relays. DUCELLIER & CIE. Aug. 4, 1964 [July 29, 1963], No- 30717/64. Heading H2B. The range of operating voltage is adjusted by altering the flexibility of biasing a blade spring 5 carried by armature 4 and the operating voltage within the selected range is altered by varying the tension of the spring. Adjustment of stop 18 carried by a spring 16 alters the tension of spring 5 and adjustment of screw 17 alters the effective length and hence flexibility of blade 5. In an alternative embodiment a member deformable lengthwise and perpendicular to the blade provides the two adjustments. Alternatively a rotary cam with three segments lying in different planes to bear on blade 5 at different points provides the necessary adjustments. In another arrangement the blade spring 5 is of triangular section and is adjustable on the armature to engage a rotary cam with different parts of its width. As a modification the range may be varied by using interchangeable rotary cams which engage blade 5 at different parts of its length.
Patent GB-630059-A (GB)
Title: Improvements relating to the electric heating of hinged hollow doors
IPC: F24D13/02
Filed: 1947-11-20
Abstract: 630,059. Hinges. ELECTRIC PANELS, Ltd., and KEEFE, E. J. Nov. 20, 1947, Nos. 30774/47 and 5838/48. [Class 65 (ii)] [Also in Group XI] Hollow hinges used with an electrically heated hollow door comprise hinge member 5, Fig. 1, pivoting in bush 11 which has a flange 12 recessed in the lintel 13 of the door frame. A modified construction shown in Fig. 3 has a rising butt and Fig. 6 shows a hinge which is mounted on the side of the door, slot 44 and aperture 45 allowing cable to be led through into the door.
Patent GB-1372022-A (GB)
Title: Motor vehicle headlamp washer system
IPC: B60S1/48
Filed: 1973-06-28
Abstract: 1372022 Cleaning vehicle headlamp glasses GENERAL MOTORS CORP 28 June 1973 [11 July 1972] 30808/73 Heading A4F [Also in Division F2] In a motor vehicle headlamp washer system liquid is pumped from a reservoir to discharge nozzles via a pressure responsive valve in which a valve element 15, shown in its open position in Fig. 3, is retained in its closed position in sealing contact with a valve seat 13 by magnetic attraction until the pressure of pumped liquid reaches a predetermined value. The rubber ring 13 constituting the valve seat is surrounded by an annular permanent magnet 14 which attracts the valve element 15 which consists of an iron plate having a circular row of openings 16 therein for the passage of liquid when the valve is open. The total area of the openings 16 is the same as the cross sectional area of the valve inlet or outlet 11 or 12.
Patent GB-434576-A (GB)
Title: Improvements in or relating to filters, strainers and the like
IPC: B01D29/15
Filed: 1934-10-27
Abstract: 434,576. Filters. CHORLTON, F. O. L., Riverside Works, Bury. Oct. 27, 1934, No. 30862. [Class 46] A removable filter element of the type formed by winding wire in a discontinuous helical groove cut in longitudinal ribs or bars a<2>, Fig. 1, on a cage or former has end flanges a<4>, Fig. 2, which fit in seatings b<1>, b<2> of a casing B having an inlet b<3> and outlet b<5>. The wire used may have a cross-section of any of the forms shown in Figs. 6 to 13, which is such that the sides of the passageway between adjacent convolutions of the wire flares outwardly in the direction of the filtering flow. The flanges a<4> have apertures a<5> corresponding to the passageways between the ribs a<2> . Liquid from the inlet b<3> filters inwardly to these passageways and reaches the outlet b<5> either direct through the apertures a<5> in one end flange or through the apertures a<5> at the other end, a recess b4 and the interior of the cage or former. The filter element may be rotatably mounted and successive sections of the straining-medium cleansed by a reverse flow caused by a gear pump arranged as described in Specifications 352,553 and 392,548.
Patent GB-483849-A (GB)
Title: Improvements in and relating to spring upholstery
IPC: A47C27/07
Filed: 1936-11-12
Abstract: 483,849. Spring upholstery. HICKS, R. B., and RACO-EPEDA CO., Ltd. Nov. 12, 1936, No. 30928. [Class 52 (iv)] An assembly of interlaced springs has a border frame secured by passing around it coils of some or all of the peripheral springs. The frame may be notched to accommodate the turns of the springs. Specification 271,774, [Class 52 (iv)], is referred to.
Patent GB-984227-A (GB)
Title: Improvements in or relating to record-playing apparatus
IPC: G11B3/085
Filed: 1961-08-28
Abstract: 984, 227. Record changers. USINES GUSTAVE STAAR S.A. Aug. 28,1961 [Aug. 29, 1960], No. 30952/61. Heading G5R. In an automatic gramophone with means for detecting the size of records being released to the turntable, a feeler arm moves in a vertical plane to engage different steps in a pick-up setting lever according to the diameter of the record detected by the said feeler arm. When a 7 inch diameter record is released a feeler arm 12, Fig. 1, is unaffected and when the pick-up arm 1 moves inwardly, an arm 3 rigid therewith moves inwardly until arrested by a step 5<SP>1</SP>, Fig. 1a, on a spring-loaded pivoted setting member 4. When a 10 inch record is released, it encounters a straight surface 13<SP>1</SP> of feeler arm 12 and forces same substantially outwardly and only slightly downwardly to the position in Fig. 2a and sets member 4 accordingly. When a 12 inch record is released, it encounters a curved surface 13<SP>2</SP> of feeler arm 12 and forces same substantially downwardly and only slightly outwardly to the position in Fig. 3a and sets member 4 accordingly, as shown, for a 12 inch record.
Patent GB-143802-A (GB)
Title: Improvements in douche nozzles
IPC: A61M3/02
Filed: 1919-12-10
Abstract: 143,802. Jackson, W. J. Mellersh-, (Rose, J.). Dec. 10, 1919. Syringes; dilating-instruments. -Dilators 5 are hinged to a sleeve 7,which slides on a tube 2 having an enlarged end, in pockets 4 of which the dilators are housed when out of action. The sleeve 7 is slid by means of two rods 8 worked by a thumb-lever 12, springs 13 keeping it normally in its retracted position: These rods are housed in a tube 16 which has openings 19 for the dilators to pass through. The dilators have curved shanks which bear against the shoulder 18, so that as the sleeve 7 is advanced, the dilators are spread out. The lever 12 can be locked in position by a catch 15 kept in place by a spring pin.
Patent GB-781139-A (GB)
Title: Improvements in or relating to exposure meters for x-ray photography
IPC: G01T1/08
Filed: 1955-10-31
Abstract: 781,139. X-ray apparatus. MASSIOT & CIE. SOC. ANON., G. Oct. 31, 1955 [Nov. 8, 1954], No. 31102/55. Class 98(1) Means for measuring radiation dosage over a wide range of wave-lengths includes at least two photographic emulsions with different sensitivity characteristics over the range, in juxtaposition with filtering means of different characteristics. In Fig. 2, photographic films 1 and 2 are placed in juxtaposition with a copper sheet 6 and tantalum sheets 7, 8 and 9. In Fig. 10, a photographic film 21 is backed by a lead sheet 22 of 2 mm. thickness, a copper sheet 23 of 2.07 mm. thickness, and a tantalum sheet 24 of 0.1 mm. thickness. A second photographic film 25, which is three times as sensitive as film 21, is placed behind these sheets, and is backed by a lead wall 26. In Fig. 12, a photographic film 31 is backed by a lead sheet 32 of 0.2 mm. thicK- ness, a tin sheet 33 of 0.7 mm. thickness, and a lead sheet 34 of 0.2 mm. thickness. Behind these sheets is placed a second photographic film 35, ten time as sensitive as film 31, with a lead backing 36. The films and other Layers may be packed in a light sealed pocket carried on the person in a plastic packing. Alternatively, they may be placed in a lead lined box, which box is in turn carried in a casing 13, Fig. 7. A spring clasp 15 inserted in opposite slots 14 in the casing 13 serves to retain the lead lined box in the casing, and to act as a means of suspension.
Patent GB-1000303-A (GB)
Title: A method of improving the magnetic induction of doubly-oriented silicon steel strips
IPC: C22C38/02
Filed: 1961-08-30
Abstract: A double-oriented silicon-steel strip or sheet having high magnetic induction and low core loss in two directions at right angles is made by hot-rolling a steel stock obtained by melting e.g. in air or vacuum and containing 2-4% Si and 0.01-0.05% Al to a sheet 0.7-13 mm. thick, preparatory annealing the sheet at 700-1200  DEG C. in the presence of nitrogen contained in the sheet or surrounding, preferably neutral or reducing, atmosphere so that the hot-rolled sheet contains at least 0.002% N combined as AlN, then cold-rolling the sheet, e.g. with 30-80% reduction in one direction, preferably the hot-rolling direction, cross-cold-rolling it, e.g. with 20-70% reduction at right angles \sB 20 degrees, optionally subjecting the sheet to an intermediate anneal, e.g. at 850-1200  DEG C. with a final cold-roll with 50-80% reduction in either of the above directions, then subjecting the sheet to a final anneal at 1000-1300 DEG C., e.g. in a reducing atmosphere to develop the (100)[001] texture.  The intermediate anneal may be effected in two stages of which the first may be in a decarburizing atmosphere, e.g. of wet hydrogen, so as to lower the carbon content, preferably to below 0.005%.
Patent GB-898329-A (GB)
Title: Photographic camera with built in exposure meter
IPC: G03B7/06
Filed: 1958-10-01
Abstract: 898,329. Photographic cameras. AGFA A.G. Oct. 1, 1958 [Oct. 4, 1957], No. 31354/58. Class 98(1). In a photographic camera, in which the setting of the diaphragm aperture and shutter speed adjusts a follower mechanism of an exposure meter, resilient means control a lost-motion connection in the transmission from the adjustment means to the follower mechanism. As shown, shaft 8 is connected to diaphragm aperture and shutter speed adjusting rings on the lens mount of a camera and is rotated when they are adjusted to alter the exposure value. The rotation is transmitted to lever 12 by spring 14 which is turned by pin 11 on lever 10, the bush 9 of which is rotationally fast with shaft 8. Pin 15 actuates rack 19 to turn pinion 20 and therewith edge cam 28. Sliding cam follower 29 may adjust the follower pointer of an exposure meter (not shown), bring the exposure meter pointer to an index mark on its scale, or rotate the whole galvanometer. A pivoted cam follower may alternatively replace sliding cam follower 29. When re-wind knob 23 is withdrawn to expose an index mark on sleeve 24, the transmission may be adjusted for different film sensitivities marked on disc 26. This is effected by lifting disc 26 against compression spring 30 and re-engaging pin 27 in the appropriate hole 25. Spring 14 allows lost-motion between levers 10 and 12 if a strain is accidentally placed on the transmission by mishandling the camera controls.
Patent GB-984273-A (GB)
Title: Improvements in or relating to tunnel linings
Inventor: SWALLOW FREDERICK COLIN
IPC: E21D11/18
Filed: 1960-09-12
Abstract: 984,273. Tunnels. COLIN SWALLOW (MINING) Ltd. Dec. 12, 1961 [Sept. 12, 1960], No. 31412/60. Heading E1F. Blocks 1a, 1b, 1c for forming a tunnel support network comprising left and right hand helices, comprise hemispherical end members 2, 2a, 2b, 2c and hemispherical recesses 3 in the sides, each of the end members of one block being adapted to mate with a recess in an adjacent block when erected in the support. The blocks are of concrete and pressure pads are inserted in the recesses either during casting of the blocks or erection of the lining.
Patent GB-617716-A (GB)
Title: Improvements relating to the mounting of pedal controls in motor vehicle underframes
IPC: B60K23/00
Filed: 1946-10-23
Abstract: 617,716. Regulating motor vehicles. MORRIS MOTORS, Ltd., ISSIGONIS, A. A., and DANIELS, W. J. Oct. 23, 1946, No. 31442. [Class 79 (v)] [Also in Group XXXII] In a motor vehicle of the kind in which the body structure is united with a sheet metal base forming the floor, which takes the place of a separate chassis frame and from which extends forwardly a pair of girders which carry the engine, the brake and clutch pedal levers are journalled in one or the other of the projecting girders and pass through an opening in the toe board, the opening being shut off from the engine compartment by a box-like casing. A floor-plate 1, extending between two side sills (not shown) has its forward part 2 upwardly inclined to form a toe board and has welded to its underside by flanges 5, two forwardly extending girders 3 and 4. A transverse box-section member 12 is attached to the upper part of the toe plate 2 and the two rearwardly sloping plates 10, having their lower ends welded to the girders 3 and 4. Rectangular openings 7 and 8, in the toe board 2, are sealed off from the engine compartment by casings 9 extending between the toe plate 2 and sloping plates 10. A detachable plate 17 has side extensions 17a, which overly the openings 7 and 8 except for parts 7a and 8a, through which may project the clutch and brake pedal levers 14 and 15 journalled on a transverse pivot 16 in the girder 3. Pedal levers 14 and 15 may alternatively be journalled on a similar pivot 16 in the girder 4 and the construction thus provides for the transference of the controls necessary for a change from rightto left-hand drive or vice versa.