baber/WOPTO huggingface dataset:
Patent GB-355979-A (GB)
Title: Improvements in and relating to electric transformer tap changing systems
IPC: H01F29/04
Filed: 1930-09-20
Abstract: 355,979. Transformers. FERRANTI, Ltd. and NORRIS, E. D. T., Hollinwood, Lancashire. Sept. 20, 1930, No. 28185. [Classes 38 (ii) and 38 (iv).] Relates to means for changing the tap connections of deltaconnected transformers under load in which each phase comprises two windings normally in parallel with connections brought out to series switches for diverting current from each branch in turn while the tap connections are changed, and consists in an arrangement whereby the number of such connections brought out may be reduced as compared with the known arrangement according to Fig. 1 (not shown). According to the invention, the windings are divided into two permanently and separately connected deltas, one pair of adjacent delta junctions being connected together and to one line terminal O while at each of the other line terminals p, q, switches r .. u are inserted in each of the connections to the delta junctions. The invention may be applied either to three-phase transformer or to banks of single phase transformers in delta-connection.
Patent GB-511728-A (GB)
Title: Improvements in float-controlled apparatus for raising liquids by means of compressed air
IPC: F04F1/06
Filed: 1938-09-28
Abstract: 511,728. Raising liquids by compressed air. GOLLNER, D. Sept. 28, 1938, No. 28219. Convention date, Sept. 29, 1937. [Class 102 (ii)] In float-controlled apparatus for raising liquids by compressed air, in which the stop valve 10 of the exhaust opening 11 of the collecting tank 1 is closed in the uppermost position of the float 17, the stop valve is directly controlled by a closing force (weight or spring) which is independent of the float, said force being rendered inoperative during the period when the stop valve is to be kept open through a locking mechanism actuated by the float so as to release the closing force when the float reaches its uppermost position, the valve being then instantaneously moved into closed position by said force. In the form shown, compressed air is supplied by a pipe 8 to an annular nozzle or a number of nozzles 9 around a cone valve 10. the lower end of the stem of which is engaged by the free end 19 of a weighted lever 18. The valve stem is provided with an annular groove 20 which co-operates with a transverse pin 21 shiftable in the guide 12 of the valve stem and pivoted to a cranked lever 22 rotatably mounted in a bracket 23 on the guide 12. When the float rises a stud 16a on its lever 16, hits against the lever 22, the pin 21 is withdrawn, and the weighted lever 18 forces the valve 10 into its closed position. In a modification suitable for dealing with large quantities of liquid which have flowed into the tank by gravity and in which the compressed air is admitted only during the delivery period, a second valve is disposed in axial alignment with the cone valve, the one being opened when the other is closed. Specification 463,032 is referred to.
Patent GB-617142-A (GB)
Title: Improvements connected with breech bolts for small arms and cartridge extractor actuating springs therefor
IPC: F41A15/14
Filed: 1946-09-21
Abstract: 617,142. Cartridge extractors. ZBROJOVKA BRNO NARODNI PODNIK. Sept. 21, 1946, No. 28330. Convention date, Sept. 21, 1945. [Class 119] Radially movable cartridge extractors 2 are held in position on the bolt head 1 by a splitring spring 4 mounted in an annular recess 3 and prevented from rotation on the bolt by projections 5 engaging recesses 6 in the bolt head.
Patent GB-1345594-A (GB)
Title: Vehicular safety system
IPC: B60R21/264
Filed: 1971-06-17
Abstract: 1345594 Crash restraint bags NISSAN MOTOR CO Ltd 17 June 1971 [26 June 1970] 24818/71 Heading B7B A crash restraint bag inflated by hot gases is protected from damage by the hot gases by supplying cold air or other gas to the bag, Fig. 2 (not shown) through inlets, (23) into a space 16 between layers 11 and 12 of the bag. Alternatively, the bag may have a heat resisting interior layer (26), Fig. 4A (not shown). The cold air or gas is supplied by containers 17, 17<SP>1</SP> through valves 18, 18<SP>1</SP> opened by closure of a switch 20 of a control system responsive to vehicle deceleration; the switch 20 also detonates explosive 14 for producing the hot gases.
Patent GB-1365450-A (GB)
Title: Automatic feed control system for earth drilling machines
IPC: E21B19/08
Filed: 1972-06-19
Abstract: 1365450 Boring earth &c INGERSOLLRAND CO 19 June 1972 28526/72 Heading E1F In a drill having means for applying feed force to the drill string, means are provided to present the reaction of the force displacing the drill. The feed force is applied to the rotary drill string 16 by a jack 18 supplied with fluid from a reservoir 52 by a pump 84. Check and control valves 92, 86 are interposed between the pump and the jack 18, a relief valve 76 normally preventing return of fluid to the reservoir. The drill has a base 10 mounted for limited movement on levelling jacks 12 carrying valves 82, 82' having plungers 58 engaging the base. Excessive feed force displaces the base relative to a jack 12 causing a plunger to open a valve 82 or 82' so that a spool 100 in the valve 76 moves to the left to open the valve 76 and return fluid to the reservoir to reduce the pressure of fluid supplied to the jack 18. The spool is moved to the left by pump pressure acting on a poppet 102 and by the reduction of pressure in a chamber 114. If the pump pressure is excessive without the valve 76 being open, an adjustable relief valve 128 opens to reduce the pressure in the chamber 114 and open the valve 76 to reduce the pump pressure.
Patent GB-353768-A (GB)
Title: An improved detachable collar for personal wear
IPC: A41B3/04
Filed: 1930-09-24
Abstract: 353,768. Collars for personal wear. TSCHUDIN, C., 12, Chemin de Bonne- Esperance, Lausanne, Switzerland. Sept. 24, 1930, No. 28624. [Class 141.] A reversible double collar is rendered flexible at the fold line C by connecting the lining b<111> of the turndown B to the lining a<111> of the neckband A by means of tongues D. The slots between the tongues, which are arranged on the turndown side of the fold line, produce the desired flexibility. The tongues may be formed on either lining, or the two linings may be cut in one piece and suitably slotted.
Patent GB-707862-A (GB)
Title: Improvements in or relating to copying machine tools
IPC: B23Q35/18
Filed: 1952-11-14
Abstract: 707,862. Copy-milling. STARRFRASMASCHINEN AKT.-GES. Nov. 14, 1952 [Nov. 15, 1951 ; Sept. 23, 1952], No. 28759/52. Class 83 (3) A hydraulically-operated copying machine tool, such as a milling machine, has a work table 3 longitudinally fed by a motor 56 driving it through a differential gear 47 and change-speed gearing 59, the differential being connected on one side to a hydraulic regulating pump 42 whose delivery is controlled by the tracer valve 18 so that, according to the steepness of slope of the pattern 23, a corresponding part of the table drive is transmitted through the differential to the pump with a consequential reduction in the speed of the table feed. In the neutral position of the tracer valve 18, the lands 37, 38 cut off a return conduit 34 from the pump delivery conduit 40 so that it cannot rotate to draw fluid from the sump 33 and the full drive is then given to the table. Rotation of the. tracer valve owing to tracer reaction is converted into axial movement by a pin and helical slot 20 so that a pair of lands 26, 27 control the escape of pressure fluid from one or other side of the piston 9 controlling the copying movement of the milling head 5 and, at the same time, the lands 37, 38 open to allow the pump to rotate and reduce the table feed until, if the pump is allowed to pump free of pressure, the table drive is zero. In a modification, one pair of lands on the tracer valve control the supply of pressure to one or other side of the piston 9 and another pair of lands control the supply of pressure fluid to operate a spritig-loaded slide valve that opens the pump delivery conduit. Regulating valves 16, 41 are fitted in the piston cylinder and regulating pump lines.
Patent GB-263113-A (GB)
Title: Improvements relating to the treatment of penetrable substances by liquids
IPC: D06B3/20
Filed: 1926-11-16
Abstract: 263,113. Cohoe Processes, Inc., (Assignees of Cohoe, W. P.). Dec. 19, 1925, [Convention date]. Coating and damping machines.-A penetrable substance is subjected to the action of a stream of liquid produced by skin friction. The invention is described with reference to the dyeing of cloth. In Fig. 1 the cloth passes relatively slowly over rapidly rotating rolls 1, 2, 3, the film of liquid keeping the cloth from actual contact, at least up to the point of dissipation of the film, which, owing to the difference of speed between the cloth and a roll, is forced through the cloth. One or more of the rolls may be rotated in the opposite direction. Where the cloth passes alternately over and under the rolls, the liquid passes through the cloth successively in opposite directions. The container preferably has only small openings 6, 7 with flexible closures 8, 9, the parts 20 providing a head of liquid so that the action takes place under pressure. Air may be allowed to escape, or liquid may be added, at 10. The rapid rotation of the rolls circulates the liquid in the container. The rolls need not be completely immersed. A length of textile may be rapidly drawn through a liquid, and a body placed in the path of the layer of liquid moving with the textile, thus forcing the layer of liquid through the textile.
Patent GB-326755-A (GB)
Title: An improved detergent and cleanser and preparation thereof
IPC: C11D9/14
Filed: 1929-09-24
Abstract: 326,755. Brooks, D. D. Sept. 24, 1929. Cleansing-compositions; soaps. - Detergent compositions are made by adding to soaps, abrasives &c. a mixture of trisodium phosphate with saponin or sodium sesqui-carbonate or both. The compositions may be prepared in solid, flake, powder, paste or liquid form. In examples, the trisodium phosphate &c. is added (1) to powdered soap and an inert soluble abrasive e.g. sodium sulphate crystals, to form a scouring powder, (2) to borax and formed into tablets of bath salts, perfume and colour being added, (3) to an aqueous solution of gum tragacanth and borax to form a grease-removing paste, or (4) to ordinary soap to form a wool-scouring soap.
Patent GB-1399681-A (GB)
Title: On-load tap-changing arrangement for regulating transformers
IPC: H02M5/10
Filed: 1973-06-19
Abstract: 1399681 Transformers MASCHINENFABRIK REINHAUSEN Gebr SCHEUBECK KG 19 June 1973 [20 June 1972] 28982/73 Heading HIT A transformer on-load tap-changing arrangement comprises output means L 1 -L 2  connectable to each of two input connections U 1 , U 2  through a main path I, II comprising at least two switches in series I 1 -I 2  II 1 -II 2 , and an auxiliary path III, IV comprising at least two switches in series III 1 -III 2 , IV 1 , IV 2 . Between two switches in each auxiliary path III, IV there is connected a switchover resistance R 1 , R 2  comprising at least two resistors in series R 11 -R 12 , R 21 -R 22 ; and from the respective junction of each of these pairs a high resistance R 4 , R 5  is connected to the junction of two switches in the respective associated main switch path I, II. A further high resistance R 3  is connected between the two auxiliary switching paths III, IV in such a way as to be connectable to each input connection U 1 , U 2  through a respective one of the switch means III 2 , IV 2  of each auxiliary switching path. In the tap-changing sequence, e.g. from main path I to main path II, make-before-break switching occurs in the order I-III, III-IV, IV-II; any arc is self-extinguished at the first zero current passage after the opening of a switch. Each of the switchover resistances R 1 , R 2  is designed to drop a potential difference at nominal load current equal to the step voltage (U 2 -U 1 ); and each resistor R 11 ; R 12 , R 21 , R 22  is made equal to one-half its respective switchover resistance; in this way the recovery volrages of the switches in any path are made equal in magnitude. Where tap-changing has to be done under overload conditions, a further division of the swirchover resistances is made Fig. 6, so that the resistor R 2  is connected to the switches III 2  IV 2  through resistors R 13 , R 23 , which modify the distribution of recovery voltage among the switches of the auxiliary paths III, IV.
Patent GB-1515112-A (GB)
Title: Article-handling apparatus
IPC: B65G47/32
Filed: 1975-09-12
Abstract: 1515112 Collecting articles on a conveyer FMC CORP (UK) LTD 12 Sept 1975 [29 June Metal articles, e.g. cans (not shown) are collected in an area bounded by a part circular guide 14 by the action of conveyer belts 4, 6, 8, 10, 12 adjacent belts moving in opposite directions as shown by the arrows. When the area within the guide 14 is full a magnetic member 22 is lowered to pick up the cans and deposit them in a basket (24) (Fig. 2, not shown). By reversing the direction of the belts 4, 8, and 12, the arrangement can be used to discharge cans from the collection area.
Patent GB-1435143-A (GB)
Title: Scanning electron microscopes
IPC: H01J37/28
Filed: 1973-06-16
Abstract: 1435143 Scanning electron microscope ASSOCIATED ELECTRICAL INDUSTRIES Ltd 18 Sept 1974 [19 June 1973] 28998/73 Heading H4F A scanning electron microscope includes means (such as an auxiliary electrostatic or ferrite cored magnetic lens 26) for alternately focusing and defocusing the electron beam 16 to illuminate alternately a relative small region of the specimen 12 and a relatively extended region of the specimen, thereby causing the output signal from detector 24 (sensitive to electrons or X-ray) to alternate between a focused value, which depends on the nature of the small region currently being scanned by the beam as well as on the total electron current of the beam, and a defocused value, which depends on the total electron current of the beam but is substantially independent of its scanning, the successive focused and defocused values of the output signal being processed together so as to substantially compensate the focused value for variations in the total electron current of the beam. In the embodiment shown the electron detector 24 comprises a phosphor screen and a photo-multiplier. The lens 26 is alternately activated to focus the electron beam, so that it illuminates at least an area equal to nine times the area of illumination of the focused beam, by means of a squarewave signal from a multivibrator 28. The frequency of this square-wave signal is preferably equal to the frequency of the stepped waveform applied to the horizontal deflection coils 22 of the electron microscope. The outputs from multivibrator 28 are also used to alternately gate 30, 32 the output of detector 24 to sample and hold capacitors (included in gates 30 and 32) and via appropriately adjusted amplifiers 31 and 33 to a differential amplifier 34 the output of which is displayed 36. The differential amplifier 34 may be replaced by a circuit which divides the focused signal by the defocused signal thereby rendering unnecessary to equalize (31, 33) the focused and unfocused signals. Modifications include continuous horizontal scanning instead of step-by-step scanning, replacing lens 26 by an auxiliary winding on objective lens 20 or by varying the excitation current thereto, and synchronizing the focusing and defocusing to the frame scanning steps instead of the line scanning steps.
Patent GB-981000-A (GB)
Title: Pneumatic loadlifting and translating means
Inventor: COATES JOSEPH EDWIN
IPC: B60V1/00
Filed: 1963-07-23
Abstract: 981,000. Air cushion vehicles. DOUGLAS AIRCRAFT CO. Inc. July 23, 1963, No. 29083/63. Heading B7K. [Also in Division B8] An air - cushion device 12 for transporting pallets 10 comprises a base plate 42 provided on its underside with a yieldable pad of elastomeric foamed plastic 46 provided with an abrasive - resistant facing 48 and formed with a recess 60 which communicates with a bore 54 in the base plate. A pallet-supporting plate 36 is mounted on a bellows-type diaphragm 38 on the base plate 42 and is formed with a bore 52 communicating with the interior of the diaphragm. Air is supplied to the bores 52, 54 through flexible conduits 26, 28 connected to a compressor 22 mounted on a trolley 14 which is detachably coupled to the device 12. The air from bore 54 escapes round the periphery of the device in the form of a layer 62 and reduces the sliding friction between the device and the ground, and the air from bore 52 expands the diaphragm 38 to raise the plate 36 to engage and lift a pallet. Spring-biased castors 50 may be provided on the base plate 42 to assist in positioning of the device beneath the pallet. Chocks 40 are pivoted to the base plate 42 and may be raised to the dotted position to support the plate 36 in its fully raised position. In a modification, Fig. 3 (not shown), the bores 52, 54 are replaced by a single bore in the base plate 42 opening into both the interior  of the diaphragm 38 and the recess 60. In a further embodiment, Fig. 4, the base plate 42 is supported by six feet each of which comprises a plate 70 connected to the base plate 42 by four compression springs 68 and provided on its underside with a yieldable pad 72 as in the first embodiment, the recess 82 being connected to the bore 54 by a flexible conduit 78. The springs 68 may be replaced by a ball and socket connection as described in U.S.A. Specification 3,052,483. In a further embodiment, Fig. 6 (not shown), the air cushion device is provided with a U-shaped pallet-supporting plate which is supported by seven air cushion feet and which is adapted to engage a pallet comprising a rectangular plate supported by legs at each corner and at its centre. U.S.A. Specification 2,918,183 also is referred to.
Patent GB-629213-A (GB)
Title: A brick truck
IPC: B62B1/22
Filed: 1947-10-31
Abstract: 629,213. Hand trucks. MASON, G. J. A., and SIMPSON, F. L. Oct. 31, 1947, No. 29107. [Class 108 (i)] A hand truck for transporting bricks comprises a body of such a shape and size that it can be wheeled into a position in which it snugly engages a stack of bricks, and members pivoted to the bottom of the sides of-said body for lifting and supporting the bricks. The body sides, which are formed of braced rectangular frames 1<SP>1</SP>, 21 and steel sheet 3, have anglemembers 8 hinged to their bottom edges and operated by a link mechanism (Fig. 3, not shown.) T-members 20 are hinged to the front edges of the sides, turned over at 22 to assist in supporting members 8 and provided with a catch 23 to maintain them in the position in which they retain the bricks within tHe body. Wheels 6, handles 7 and lifting lugs 24 are also provided.
Patent GB-617410-A (GB)
Title: Improvements in or relating to tables, trolleys or the like
IPC: A47B31/02
Filed: 1946-10-01
Abstract: 617,410. Furniture combinations. HAWKINS, L. G., and HAWKINS & CO., Ltd., L. G. Oct. 1, 1946, No. 29196. [Class 52 (iii)] A trolley in which food may be warmed or kept warm comprises a box-like chamber supported by legs preferably having wheels, the chamber having recesses for the food containers, a flap or flaps adapted to cover the chamber or to be extended to serve as tables and heating means. As shown a trolley comprises tubular legs 1 having castors 7 and a compartment 8 the upper surface of which is adapted to be enclosed by two flaps 19, 20 fitting one above the other and each adapted to swing outwardly to an extended position to serve as a serving table. The flaps 19, 20 are hinged upon the frame members by means of their flanges 21, 22 which serve also as abutments to suppqrt the flaps in their extended horizontal positions. The upper surface of the compartment is provided with apertures within which are seated removable food containers 11, 12 which may be warmed by means of electric heaters 14 or by other means. A plate rack 15 for heating plates is provided to which access is provided through closure openings at each end of the trolley. A lower tier 28 is provided supported by angle brackets 29 from the frame members.
Patent GB-869234-A (GB)
Title: Transducer and vibratory diaphragm
IPC: H04R1/22
Filed: 1957-09-17
Abstract: 869,234. Microphones; diaphragms. KNOWLES, H. S. Sept. 17, 1957 [Oct. 11, 1956], No. 29214/57. Class 40 (4). The sensitivity of a microphone, particularly for use in a deaf-aid, is improved by connecting cavities on the two sides of the diaphragm by a tube of the type described in Specification 382,268. A rectangular capsule, Figs. 1 and 2, for use in a deaf-aid, has a restricted aperture 59 for the ingress of sound to a diaphragm 46 connected by a tube 72 to an armature 62 of a transducer. The tube 72 also, Fig. 4, connects the cavities on the two sides of the diaphragm, and may be made integral with the diaphragm 46. A number of short tubes 84, 86, 88, 90, Fig. 7, may be provided in the diaphragm and substantially normal thereto, or tubes may be provided in the plane of the diaphragm, Figs. 9, 11, 12.
Patent GB-707260-A (GB)
Title: Improvements in or relating to the tufting of mattresses
IPC: A47C31/02
Filed: 1951-12-13
Abstract: 707,260. Tufting mattresses &c. WHALEY, F. P. Nov. 21, 1952 [Dec. 13, 1951], No. 29221/51. Class 52(4) A mattress is tufted by tying the ends of a piece of tape into a bow 1, to form one of the tufts, leaving a loop 2 which is passed through the mattress and is secured to a second bow 3, forming the opposing tuft, by means of a hook 4. To ensure that the bows do not pass through the mattress cover a ring may be placed between the mattress and the bow. In an alternative construction the second bow may be formed with a short loop through which the longer loop is passed.
Patent GB-1283485-A (GB)
Title: A rescue device
IPC: B63C9/26
Filed: 1970-06-17
Abstract: 1283485 Life-lines L H LINDQVIST 17 June 1970 [18 June 1969] 29363/70 Heading B7U  A life-line is normally stowed in a weighted buoyant bag 3 which can be thrown to a person in distress as a unit with the line end 11 in the hand of the rescuer. Weight 2 and plastics material float 7 are attached to the bottom of the bag which is of a width no more than 25 times the diameter of the line. A grab handle 8 protruding from the bottom of the bag is attached tothe. line so that it. tightens on the wrist of the person being rescued. A hook 1 can be fastened to the handle 8 to facilitate carrying the line, and a further hook (not shown) fastened to the line near the bag end enables the line.to be secured around the waist of the victim. The mouth of the. bag is closed by a strap 9, and rope stop. 10 prevents the line from pulling out when the. mouth is closed. In a modification (not shown) this stop consists of a spike which can be driven into ice.
Patent GB-445430-A (GB)
Title: Improvements in or relating to chairs
IPC: A47C12/02
Filed: 1934-10-15
Abstract: 445,430. Step-ladders convertible into seats. HARDING, P. G., 160, Star Road, Peterborough. Oct. 15, 1934, No. 29474. [Class 20 (ii)] [See also Group XIV] A chair convertible into a step-ladder comprises a frame with legs 13, a seat 4 hinged at its rear to the frame, and a step structure 8, 9 rigidly fixed to the under side of the seat, so that when the seat is raised the steps are moved into position for use. When the seat is in its normal position the step structure lies within the chair frame and may be concealed by panels, and the top step 9 engages abutments 18 on the front legs. A catch comprising a transverse bar 15 holds the step structure in the raised position, the bar being secured to arms 16 hinged to the frame and counterweighted to assume a vertical position.