baber/WOPTO huggingface dataset:
Patent GB-1073062-A (GB)
Title: Brushless synchronous motor control system and circuitry therefor
IPC: H02P25/02
Filed: 1965-04-13
Abstract: 1,073,062. Switching circuits. WESTINGHOUSE ELECTRIC CORPORATION. April 13, 1965 [May 19, 1964], No. 15712/65. Heading H3T. [Also in Division H2] A brushless synchronous motor has a field 16 energized from an exciter 18 via rectifiers 34 ... 44 and a switching thyristor 46, which is triggered by a circuit 48 when the slip frequency in the field 16, which is connected to a resistor 68 for starting, is sufficiently small, and preferably at the optimum point in the cycle. At synchronism, the resistor 68 is disconnected by a thyristor 64, turn-off of which is assured by momentarily switching off the first thyristor 46 to induce reverse voltage in the field 16. Switching-off of thyristor 46 is effected by the discharge of a capacitor 122, by the switching-on of a third thyristor 120 by a circuit 132. Thryristor 46 is switched on again by a circuit 134. Loss of synchronism is. detected by a circuit 214, which causes thyristor 46 to switchoff and starting conditions to be re-established. All of the equipment within chain line 22 rotates with the motor shaft. A squirrel cage winding improves starting torque. Triggering circuit 48 for thyristor 46 comprises a thyristor (78, Fig. 2, not shown) triggered by a resistance/capacitance circuit (104, 96) energized by the slip voltage across field 16, clipped by Zener diodes (70, 72) and having a time constant adjusted to effect triggering of (78) when the slip frequency is sufficiently low. Thyristor (78) is in series with a unijunction transistor (86) whose emitter is connected to a second R/C circuit (110, 112), adjusted to prevent conduction until the end of a positive half cycle. The output is a pulse from a transformer (90). A similar circuit (132) has a breakdown diode (162, Fig..5, not shown) or unijunction transistor (198, Fig. 6, not shown) which provides a triggering pulse for 120 when the voltage at its input, across resistor 68, is unvarying for a relatively long time, which occurs at synchronism when 46 is conducting. The output transformer (164) has a second secondary (174) which supplies a gating pulse to a thyristor (176) in circuit 134, but this does not at first conduct because it is in series with a break-down diode (192); this conducts, to give an output pulse to re-fire switching thyristor 46, when the input voltage (across 68) is reversed, which occurs when 46 has been cut-off. Thus, this circuit effects the brief shut-off of thyristor 46. The drop-out detecting circuit 214 is connected across exciter A.C. terminals 216, 218, and comprises a breakdown diode (Fig. 3, not shown), or a unijunction transistor (Fig. 4, not shown) connected to an R/C circuit (226, 228) to provide an output to trigger 120 whenever the frequency is below that for synchronous speed.
Patent GB-862305-A (GB)
Title: Improvements in or relating to writing instruments
IPC: G05G7/08
Filed: 1958-05-16
Abstract: 862,305. Writing instruments. RITTER, J., and DOETTLINGER, A. May 16, 1958 [May 18, 1957], No. 15740/58. Addition to 785,249. Class 146(3). In a writing instrument of the general type described in the parent Specification the ball or other roiling body forming part of the locking means is restrained against radial deviation by metal surfaces. As shown; the writing unit 2 which is made of metal is formed with a circumferential groove 3 and is slidable in two sleeves 5, 6- made of synthetic plastic material and frictionally mounted in an externally threaded metal tube 1, e.g. of brass, which serves to unite the upper and lower portions of the pen barrel. The sleeves 5, 6 are formed with opposed, toothed cam surfaces which act on a ball 7 carried in the groove 3. Successive depressions of the unit 2 causs the ball 7 to engage alternately in deep and shallow recesses in the cam surface of the sleeve 5 to latch 'the writing unit in positions where the writing point is respectively retracted within the barrel and projected therefrom. Instead of uniting the barrel parts the tube 1 may be formed as a threaded tube for retaining a 'pocket clip, the groove 3 then being formed in a metal plunger operating on the writing unit. The unit 2 may have the groove 3 formed in a metal end piece attached thereto.
Patent GB-1377449-A (GB)
Title: N,n-bridged-bis-2-alkyl-2-hydroxy ethylamine compounds
IPC: C07C291/04
Filed: 1973-04-02
Abstract: 1377449 N,N<SP>1</SP> - bridged - bis - (2 - alkyl - 2- hydroxy ethylamine) compounds STERLING DRUG Inc 2 April 1973 15743/73 Heading C2C The invention comprises compounds of the formula wherein R is C 3  to C 15  alkyl or C 4  to C 7  cycloalkyl, R<SP>1</SP> is H or C 1  to C 4  non-tertiary alkyl, X is C 2  to C 12  alkylene with bonds to the nitrogen atoms at different carbon atoms or X<SP>1</SP>-Y-X<SP>11</SP> wherein X<SP>1</SP> and X<SP>11</SP> are C 1  to C 4  alkylene groups with bonds to Y and to the nitrogen atoms at the same or different carbon atoms and Y is C 4  to C 7  cycloalkylene with bonds to X<SP>1</SP> and X<SP>11</SP> at the same or different carbon atoms, phenylene, vinylene or ethynylene. The sum of the number of carbon atoms of R and X is at least 9. Z is H or, when R<SP>1</SP> is C 1  to C 4  non-tertiary alkyl; N- phenylcarbamoyl or N-phenyl carbamoyl substituted in the benzene ring by one to three non- tertiary C 1  to C 4  alkyl groups, halo or C 1  to C 4  non-tertiary alkoxy groups, or by a trifluoromethyl, acetamido, nitro or methyl-sulphonyl group. The compounds include acid addition salts. When Z is H and R<SP>1</SP> is non-tertiary alkyl, the compound can be an N,N<SP>1</SP>-dioxide, an N,N<SP>1</SP>- di(non-tertiary C 1  to C 4  alkyl) diammonium quaternary salt or an N,N<SP>1</SP>-dibenzyl diammonium quaternary salt. The compounds are useful as antibacterial agents.
Patent GB-510987-A (GB)
Title: Improvements in or relating to supply circuits for luminous electric discharge lampsand tubes
IPC: H05B41/232
Filed: 1938-05-26
Abstract: 510,987. Supply systems for discharge lamps. CLAUDE-GENERAL NEON LIGHTS, Ltd., and LARK, G. T. KINGSLEYMay 26, 1938, No. 15754. [Class 38 (iv)] In a supply system for two or more luminous electric discharge lamps or tubes which are effectively connected in parallel, each lamp or tube 1 is connected across the secondary of a close coupled transformer 2, the primary windings of these transformers being connected in parallel, either directly or through series capacities, in series with a common condenser 3 across the secondary of a leaky reactance transformer 4, or an equivalent transformer impedance combination, the primary of which transformer or combination is to be connected to the supply mains. In the example the transformers have a centre-earthed secondary winding. A condenser may be connected directly across the output terminals of the leaky transformer or transformer-impedance combination. The tubes may be of the cold cathode type or have thermionic electrodes which are heated at least when starting.
Patent GB-983936-A (GB)
Title: Improvements in or relating to shopping bags
IPC: B65D33/12
Filed: 1963-04-22
Abstract: 983,936. Carrier-bags. E. B. SMITH. April 22, 1963 [July 26, 1962], No. 15831/63. Heading A4G. A shopping bag operable from a folded flat condition and having handles 14 on the side walls is provided with a flexible protective cover 19 secured to the inside of a side wall adjacent the open end and extending towards the bottom of the bag a distance greater than the open width between the side walls. The handles are stapled at 16 to a reinforcing strip 17 and the tops of the side walls turned over at 18 to cover the staples. The cover end may be secured to the side wall at a position to form one of the reinforcing strips extending over one of the handle ends. In another embodiment the bag is provided with a liner one end of which is folded back on itself to form the cover and the liner may be of different colour from the bag to show up advertising matter formed by cut outs on the side walls.
Patent GB-379702-A (GB)
Title: Highly emissive thermionic cathode
IPC: H01J1/14
Filed: 1931-05-30
Abstract: 379,702. Thermionic cathodes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, BENJAMIN, H., 11, Bayrischer Platz, and EHRIG, E., 19, Blankenburgerstrasse, Niedersch÷nhausen, all in Berlin. May 30, 1931, No. 15857. Convention date, May 31, 1930. [Class 39 (i).] In producing cathodes by treatment with the vapour of an emissive substance such as barium, a core of tungsten, platinum, or nickel-chromium &c. is passed at a definite speed through a molten mass of potassium or sodium hydroxide, alkaline earth hydroxides, carbonates, potassium ferro-cyanide or ferricyanide or other compounds to form a preliminary conducting coating on the core prior to the vapour treatment. No subsequent heat treatment is required. If an electron-emitting compound is used as the preliminary coating, a mixture of emissive materials is produced on the cathode.
Patent GB-909127-A (GB)
Title: Method and apparatus for the production of cooked comestibles
Inventor: HUNTER HERBERT THOMAS
IPC: A21B5/00
Filed: 1959-05-08
Abstract: 909,127. Making doughnuts. DCA FOOD INDUSTRIES Inc. May 8, 1959, No. 15939/59. Class 28 (1). Yeast-raised dough pieces from a cutter 20 are deposited on perforated cloths 42, Fig. 4, each resting on a tray 34 to be fed into a proving chamber 21; thereafter, the pieces are removed from the cloth and fed through a fatfryer 24, from which they are received on second trays on a connecting conveyer which feeds them to a sugar glazer 28 and into a cooler 29 whence they pass to a packer 33. In the prover, the trays are received on supports on vertically moving conveyers 53 advanced intermittently by pawl-and-ratchet mechanism from an air cylinder 68 under the control of a timing device. The trays 34 and cloths 42 are separated by reciprocating fingers 114 which act to discharge the trays from the machine while the cloths are carried up a ramp 108 by hooks 111 which carry them and the dough pieces forward until the cloths are pulled round rollers 127. The dough pieces then fall into the delivery shoot 130 of the fryer through which they are advanced by paddles and are overturned at the halfway point. The cooked doughnuts are conveyed past the glazing unit and deposited on trays on which they are carried through a cooler similar to the prover. Specifications 767,255 and 780,125 are referred to.
Patent GB-1044534-A (GB)
Title: Rubber tipped needle valve and method of manufacturing the same
Inventor: GIFFORD ROBERT TAEUSCH
IPC: B29C70/76
Filed: 1963-04-23
Abstract: 1,044,534. Valves. VERNAY LABORATORIES Inc. April 23, 1963, No. 15955/63. Heading F2V. [Also in Division B5] A needle valve has a natural or synthetic rubber tip 11 moulded on to the metal body 10 by injection into the cavity of a mould which is engaged with the body and swages the peripheral edge 18 thereof so that substantially no flash is produced. The tip 11 is generally conical and has a doubleangled surface. The socket 14 of the body 10 is threaded at 15 and its surface may be treated with a parting compound to prevent bonding of the rubber.
Patent GB-1049824-A (GB)
Title: Hexahydropyridobenzodiazepine derivatives
IPC: C07D211/60
Filed: 1965-04-14
Abstract: Novel compounds of the general formula <FORM:1049824/C2/1> wherein R and R1 represent independently of each other hydrogen, a halogen atom, a low alkyl or alkoxy radical, R2 and R3 represent independently of each other hydrogen or a low alkyl group, or R2 and R3 form together with the adjacent nitrogen atom the 1-pyrrolidinyl, piperidino, morpholino, 1-piperazinyl or 4-methyl - 1 - piperazinyl radical, and n is an integer of from 2 to 5, and acid addition salts thereof with inorganic and organic acids, are prepared either by reduction of a carbonyl compound of the formula <FORM:1049824/C2/2> or by reaction of a compound of the general formula <FORM:1049824/C2/3> wherein X is a halogen atom, or a compound of the general formula <FORM:1049824/C2/4> with an amine of the formula HNR2R3.  Pharmaceutical compositions comprise a compound of the first general formula above or a pharmaceutically acceptable acid addition salt thereof and a carrier therefor.  They have analgesic, hypotensive, local anaesthetic, tranquilizing and anti-inflammatory action.
Patent GB-457710-A (GB)
Title: Laminated springs
IPC: F16F1/20
Filed: 1935-06-01
Abstract: 457,710. Laminated springs. REINZ, H., 9, Arysallee, Charlottenburg, Berlin. June 1, 1935, No. 15988. Convention date, June 2, 1934. [Class 108 (iii)] Between the laminations of a laminated spring for use on motor vehicles, railway wagons, and the like, compound fabric interleaves are inserted each comprising a soft, non - metallic, water-repellent,lubricantcontaining substance and metal wires, which form sliding surfaces for the laminations. In one form of fabric interleaf the warp which extends longitudinally or transversely relatively to the laminations, consists of bare metal wires and the weft of a plastic thread spun for example from cotton or asbestos fibres or the like which may have a wire core. The warp wires may be embedded in the weft threads. When the fabric is produced in a twill weave, Fig. 2, 3, portions 4 of the warp, of a length corresponding to a double bridging of the weft threads 3 and separated by the thickness of a weft thread, are exposed on the two sides of the fabric. To make the fabric water-repellent it may be steeped in a water-repellent substance, such as artificial resin, or water - repellent material may be employed for the weft threads. The fabric may then be charged with graphite by being drawn under high tension, between the rolls of a calender one of which may be heated and the other cooled. The Specification as open to inspection under Sect. 91 comprises also the following which forms part of the subject-matter of Specification 457,711. The fabric may be composed of any material having metal particles e.g. metal chips in its surface and saturated preferably with a dry lubricant. Prior to being charged with lubricant the surface of the fabric may be treated to increase its capacity for absorbing lubricant. The non-metallic substance may be composed of jute, artificial silk, or other textile materials. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1013069-A (GB)
Title: Process and apparatus for treating fluids
IPC: B01J47/022
Filed: 1962-04-26
Abstract: 1,013,069. Filters for liquids; ion-exchange. INTERNATIONAL ANALYZER S.A. April 26, 1962 [May 29, 1961], No. 16010/62. Headings B1D and B1J. During upflow of liquid to be filtered or treated, or of regenerating liquid, the free space 7, Fig. 1, above the bed 2, is eliminated by introduction of a fluid at 8, Fig. 2, to the region 5 between the outer cylindrical wall 1 and a resilient cylindrical wall 6, to prevent channelling of the bed. During upflow rinsing, the free space may be partially eliminated by the same means. A cylindrical resilient wall may be arranged within the bed along the axis to provide a central expandible region, Fig. 3 (not shown). The pervious wall 4 above the bed may be replaced by a layer of coarse granules of lower specific gravity than the bed, Fig. 5 (not shown).
Patent GB-974872-A (GB)
Title: Improvements relating to quick-lime dispersions
Inventor: KERMACK DEREK OGILVY
IPC: C08K9/04
Filed: 1962-04-27
Abstract: A quicklime composition comprises a solid dispersion of finely-divided quicklime in a wax having a melting point of 40 DEG C. or in a mixture of such a wax and an oil.  Proportions may be 0.05-10 parts of quicklime to 1 part of dispersing medium.  Up to 99% of the dispersing medium may be a mineral or fatty oil. Specification 890,262 is referred to.ALSO:A composition comprises a solid dispersion of finely divided quicklime in a wax having a melting point of at least 40 DEG  C. or in a mixture of such a wax with an oil.  Proportions may be 0.05-10 parts of quicklime to 1 part of dispersing medium.  Up to 99% of the dispersing medium may be a mineral or fatty oil.  Waxes specified are carnauba wax, paraffin wax and microcrystalline wax. Specification 890,262 is referred to.
Patent GB-874688-A (GB)
Title: Improvements in metal coffins
IPC: A61G17/00
Filed: 1959-05-11
Abstract: 874,688. Coffins. SCHENK, H., and SPRING, W. May 11, 1959 [May 12, 1958(2)], No. 16138/59. Class 18. [Also in Group VII] A metal coffin has parts that break down when buried in the soil. The coffin is made of sheet iron, zinc, aluminium or magnesium or a combination of these metals and may break at the joints or have grooves which break under the weight of the soil. The corpse can be covered with a wrapper of gas tight material which quickly decays, the wrapper being secured to the base by adhesive tape. A stirrup-shaped member raises the wrapper clear of the face. The wrapper is prevented from tarnishing on the inside.
Patent GB-612637-A (GB)
Title: Improved revoluble-headed centre for tailstocks of lathes and analogous uses
IPC: B23B23/04
Filed: 1946-05-28
Abstract: 612,637. Lathe centres. HAZLEWOOD, G. W. May 28, 1946, No. 16140. [Class 83 (iii)] A tailstock or like centre is provided with a revoluble head 1 mounted by a ball journal bearing 3 and a ball thrust bearing 4 upon a stationary shank 2. The journal bearing is disposed between a peg 2b on the shank and a cylindrical chamber 1c in the head, while the thrust bearing is interposed between a collar 2d on the shank and a facing le in the head which is secured over the shank by a nut 5.
Patent GB-1391187-A (GB)
Title: Process for treating a suspension of micro-organisms
IPC: C02F1/78
Filed: 1972-04-07
Abstract: 1391187 Treating aqueous suspensions RHONE-PROGIL 7 April 1972 [9 April 1971] 16235/72 Heading C1C [Also in Division C2] A process for treating an aqueous suspension of microorganisms (e.g. effluent), comprises (a) introducing the suspension into the top of a receptacle and gas (e.g. air, chlorine, ozone, or carbon dioxide) at a constant rate into the bottom of the receptacle (b) forming two superimposed layers separated by an interface in the receptacle by removing the suspension from the bottom of the column at a rate which is greater than its supply rate, the upper layer containing a greater proportion of gas and (c) then removing the suspension at a rate which is substantially equal to its supply rate. In step (c) the removal rate may be controlled by means (e.g. pressuremeasuring or optical means), sensing the position of the interface, any change in the interface's position indicating a change in the supply rate. A surface-active agent may be added to the suspension. The process may be an activated sludge process in which case the effluent from the receptacle is passed to a settler.
Patent GB-130322-A (GB)
Title: Improvements in Casting Individual Type.
IPC: B41B7/04
Filed: 1919-06-27
Abstract: 130,322. Lanston Monotype Corporation, (Assignees of Bancroft, J. S.). July 25, 1918, [Convention date]. Types. - To avoid the necessity of changing the mould in typecasting machines when casting type of different founts, the types are formed with an overhanging portion, as shown, on a body portion of constant point size by means of matrices having deep cavities. When the types are assembled, the overhanging parts are supported by low quads or strip material
Patent GB-727651-A (GB)
Title: Improvements in or relating to fibre drawing
IPC: D01H5/22
Filed: 1951-07-09
Abstract: 727,651. Drafting textile fibres. ASHTON F. July 9, 1951, No. 16249/51. Class 120(2). Fibres are drafted by passing them between two pairs of rollers that are vertically and horizontally adjustable in order to engage the strand of fibres with one roller of each pair to an extent sufficient to control the twist in the strand. In one form, two pairs of drafting rollers 1, 2, 3, 4, are adjustably mounted on frames 5. The roller 2 is supported in slidable members 8, 10 and the rollers 3, 4 are mounted on a horizontal slide member 12, carried by a vertical slide member 13. A traversing bar 22 carrying guide trumpets 23 extends over the full length of the machine. Cloth covered clearer rollers 24, 25, 26, 27 engage the rollers 4, 2, 1, 3 respectively, although in a modified form a single clearer roller may contact rollers 2, 4 Preferably, all the drafting rollers are covered with a synthetic or natural non-metallic material. Instead of a large self-weighted roller 4, a smaller roller loaded by a weight or a spring may be employed. An additional and preferably small pressure roller may operate in association with the roller 3, or the roving may be introduced to the drafting system by passing over the roller 4, then between rollers 3, 4 and under roller 3.
Patent GB-183434-A (GB)
IPC: B63H11/12
Filed: 1922-06-12
Abstract: 183,434. Nachenius, H. A. J. de B. July 21, 1921, [Convention date]. Addition to 175,861. Resistance to propulsion, reducing.-In a ship constructed as described in the parent Specification, gas outlets are provided at two positions in the bottom which are suitably spaced and in communication. The outlets are formed in tanks which fill with water when not used for gas jet propulsion and a set of valves is provided wherebv the water can be blown out ahead or astern when desired. Compartments b are arranged across the bottom of the shin with openings g in the bottom plate, these openings being controlled by plates l pivoted on a shaft h and actuated by the rod k which passes up through the main gas supply pipe a. According to the position of the plates l, water or gas is blown out ahead or astern for manoeuvring. In an alternative construction, the rocking arm actuates a sliding valve which in conjunction with internal guide surfaces deflects the fluids in the required direction.
Patent GB-980594-A (GB)
Title: 17ª-substituted 3-lower alkoxy-1,3,5(10)-estratrien-17ª-ol and production thereof
IPC: C07J1/00
Filed: 1963-04-25
Abstract: The invention comprises 17a -substituted 3-lower alkoxy - 1,3,5(10 - estratrien - 17b  - ols having the formula <FORM:0980594/C2/1> wherein R is phenyl, thienyl or thiazolyl and R1 is an alkyl group containing 1-5 carbon atoms, and the preparation thereof by reacting the corresponding 17-oxo-estratriene derivatives with an appropriate organo-metal compound, e.g. phenyl lithium, thienyl magnesium halide, or thiazolyl sodium.
Patent GB-357614-A (GB)
Title: Improvements in or relating to steering wheels for motor vehicles
IPC: B62D1/08
Filed: 1930-05-28
Abstract: 357,614. Hand-wheels. SMALE, W. J., 1A, Frogmore Avenue, and HOWELL, L. F., 1, Upton Terrace, St. Thomas, both in Swansea. May 28, 1930, No. 16422. [Class 80 (iv).] In motor-vehicle steering-wheels in which the rim can be shifted forward to a position eccentric to the boss, the spokes are arranged to be angularly movable about the boss. One spoke comprises a tubular part 27, which is secured by studs 28 in a slot in the rim 24 and telescopically receives a flat bar 30 having an eye 32 secured to the boss 26 and provided with a single notch 36. The other telescopic spokes comprise tubular parts 38, 38A, pivoted respectively at 42, 40 to the rim, and bars 44, 44A having eyes 48, 48A each provided respectively with two notches 50, 52 and 50A, 52A. The eyes 48, 48A are secured by a nut 58 for rotation on a reduced part 56 of the boss 26. A locking- trigger 66, mounted on a screw 62 and pressed by a spring 64, lies in a groove in the boss 26 and in aligned notches in the spoke-eyes, unless withdrawn by a finger-piece extension 70. When the wheel is in the normal position, Fig. 1, the trigger engages the notches 36, 52, 52A, but on releasing it and pushing the wheel forward, as shown in Fig. 2, it snaps into the notches 36, 50, 50A.
Patent GB-322481-A (GB)
Title: Improvements in or relating to television apparatus and the like
IPC: H04N3/34
Filed: 1928-06-06
Abstract: 322,481. Baird, J. L., and Television, Ltd. June 6, 1928. Drawings to Specification. Television.-The apertures in a scanning disc, instead of being circular or square, are either longer or shorter in the direction of motion than in the direction at right-angles thereto. Specification 312,406 is referred to.