baber/WOPTO huggingface dataset:
Patent GB-1098554-A (GB)
Title: Transducers
IPC: H01G7/02
Filed: 1966-02-16
Abstract: 1,098,554. Electric solid-state devices. FORD MOTOR CO. Ltd. Feb. 16, 1966 [March 5, 1965], No. 6758/66. Heading H1K. [Also in Division H3] A transducer consisting of a conducting film 4 on a ferroelectric body 1 operates on the principle that the charge carrier density in the film depends on the state of polarization of the body. The illustrated device consists of a barium titanate body 1 polarised by a potential applied between terminal 3 and one or both terminals 5, the changed charge carrier density in the film 4 being detected as a change in resistance between the terminals 5. Gold and bismuth are quoted as suitable film materials for such a device. A device consisting of a film or films of tin on a body of triglycine phosphate is also described, the change in charge carrier density in the tin being used to bring about a change in its superconductive transition temperature. The Specification also mentions the following properties related to charge carrier density and which could therefore constitute the controlled variable in a device according to the invention: Hall voltage, transmission and reflectance of light, Curie temperature (of a ferromagnetic material), Mossbauer effect. Other possible film materials are antimony, arsenic and selenium; another possible body material is potassium dihydrogen phosphate.
Patent GB-436079-A (GB)
Title: Improvements in or relating to composite plaster boards or slabs intended particularly for building purposes
IPC: E04C2/04
Filed: 1934-03-02
Abstract: 436,079. Plaster boards; walls; ceilings. MACTAGGART, E. F., MARGETSON, O., and JOINTLESS WALLS & CEILINGS, Ltd., 46, Bedford Row, London. March 2, 1934, No. 6777. [Classes 20 (iv) and 87(i)] Walls and ceilings are formed by securing to studding and joists plaster boards with cut-away edges on the exposed face to key with the plaster filling in the joints. The boards consist of an inner plaster layer a with paper or like coverings b, c and a plaster facing d applied during manufacture. The edges of the facing d are bevelled or rebated to form grooves between adjacent boards to receive plaster filling j. The boards may abut or be spaced apart, and are secured by screws n and metal strips or washers o; perforations may be made through the rebated edges to receive nails.
Patent GB-1367060-A (GB)
Title: Substituted acetonitriles and their use as odorants
IPC: C07C255/45
Filed: 1973-02-12
Abstract: 1367060 Substituted acetonitriles L GIVAUDAN & CIE SA 12 Feb 1973 [12 Feb 1972] 6800/73 Heading C2C [Also in Division A5] The invention comprises 4-isopropenyl-#<SP>1,α</SP>- cyclohexan-acetonitrile and 4-isopropylidene- #<SP>1,α</SP>-cyclohexan-acetonitrile. The compounds are prepared by cyanomethyleneation of the appropriate 4-substituted cyclohexanone.
Patent GB-1437736-A (GB)
Title: Apparatus for directing fluid flow into different delivery  ducts
IPC: F04B49/00
Filed: 1974-02-14
Abstract: 1437736 Valves ROBERT BOSCH GmbH 14 Feb 1974 [15 Feb 1973] 6814/74 Heading F2V [Also in Division G3] A change-over valve 3 for dividing the fluid flow from a constant delivery pump 1 between a working cylinder 12 and a reservoir 2 is actuated by an independent fluid pressure medium acting on a piston 7. The supply of the medium from a pump 18 to either side of the piston is controlled by pilot valves 15, 16 which are electro-magnetically actuated through an electric pulse generator 19. The time one valve is open while the other is closed depends on the length of the pulses relative to their frequency. The pulse length and frequency can be varied to such an extent that one valve is always open while the other is closed. A first pressure limiting valve 4 is included in the input conduit and a second such valve 17 is included in the conduit from the pump 18.
Patent GB-679158-A (GB)
Title: Improvements in and relating to the "muted" performance of brass musical instruments
IPC: G10D9/06
Filed: 1950-03-20
Abstract: 679,158. Brass wind musical instruments. ROOPE. J. W. T. March 19, 1951. [March 20, 1950] No. 6825/50. Class 88 (ii). A mute comprises a cylinder 1 of metal or plastic closed at one end and clipped at the other end to the bell 4 of the instrument. Inside this cylinder 1 and secured to a flange 2 at its open end is a second cylinder 5 of spongy rubber, closed at its other end and enclosing a volume of air equal to that enclosed by the instrument. Sound-absorbing material 6 is packed between the two cylinders. In the open end of the mute is suspended a microphone 7 supplying, through a volume control and an amplifier, headphones worn by the player.
Patent GB-803505-A (GB)
Title: Improvements in electromagnetic eddy-current couplings
IPC: H02K49/04
Filed: 1957-03-01
Abstract: 803,505. Dynamo-electric machines. EATON MANUFACTURING CO. March 1, 1957 [March 12, 1956], No. 6835/57. Class 35. An eddy current coupling C comprises an annular stationary field coil 31 mounted on a magnetizable hollow sleeve 27 extending axially from one end of a spider 23 having openings 25 between its spokes, a magnetizable annular rotatable assembly 89, 97 of generally C-shaped axial half-section almost enveloping but spaced from the coil 31 and sleeve 27 and being keyed at 81 to an output shaft 41 and having interdigitated magnetic pole teeth 91, 95 radially outside the coil 31, a magnetizable inductor drum 75 radially surrounding the assembly 89, 97 and being rotatable with respect to the shaft 41, a casing 1 surrounding the inductor drum 75 and having air outlet openings 117 and extending from one end a hollow end bell 13 having an air inlet opening 115, and a rim 71 supporting the inductor drum 75 and having blades 73 to induce air flow from the end bell opening 115 through the spider openings 25, the sleeve 27 and the assembly 89, 97 to the casing outlet openings 117. The output shaft 41, borne in bearings 37, 39, carries the permanent magnet rotor 111 of an A.C. generator having a stator winding 109, and is coupled by the coupling C to a driving motor M. The motor comprises a wound stator supported on casing ribs 5, and a squirrel cage rotor 49 having cooling fins 55 and supported by a quill 47 borne by bearings 43, 45 on the output shaft 41 and carrying the rim 71. Blades 73 also draw in cooling air through end bell and casing openings 65, 63 and cause it to pass through the nozzle 19 of a septum 17, the motor rotor to stator air gap, openings 59, 61 and the quill bore, and the bore of another septum 57 separating axially the motor and the coupling. Specifications 614,091, 743,400 and 779,484 are referred to.
Patent GB-421306-A (GB)
Title: Improvements relating to locking devices for vehicles
IPC: B62H5/14
Filed: 1934-03-03
Abstract: 421,306. Locking vehicle wheels. ROSENGARTEN, A., 28, Jesenskeho, Mahrisch- Ostrau, Czecho-Slovakia. March 3, 1934, No. 6870. [Class 79 (iii)] To prevent unauthorized use, the hub 18 of a bicycle or other vehicle wheel is adapted to be locked to its fixed axle 19 by a slidable collar 17 having polygonal or other non-circular relation with the axle to prevent rotation thereon and also formed with a non-circular periphery for engagement with a correspondingly formed opening 30 in the co-operating hub part 28. The collar is mounted on an extension 33 of the usual fixed bearing cone 31 and carries a pin 37 passing through slots 42 in the extension and axle, serving not to prevent rotation but to take the thrust of a spring 39 housed in an axial bore and which tends to force the collar into the opening in the hub closure cap 28. The action is opposed by a slidable pin 36 controlled by a rotary barrel lock 43 threaded on the axle end. The rotary barrel 44, Fig. 6, acts upon the pin 36 by means of a cam-shaped end with a stop face 46 and is locked in either of two positions separated by an angle of 90‹, two sets of retaining plungers being provided for this purpose. The bearing cone 31, which is screwed on the axle 19, is locked by a nut 64 and washer 65, a reduced non-circular part 58 of the extension 33 carrying a dust-cap 59 and being engaged by an arm 61 bolted to a sleeve on the adjacent fork arm of the cycle frame. The lock 43 is formed with an internally threaded extension 43<a> for attachment to the end of the axle 19, a polygonal shoulder 47 on the extension engaging a corresponding aperture in a yoke 49 which is also apertured to permit passage of the shank 53 of the usual eyebolt for adjusting the chain tension. When assembled, the yoke 49 straddles the eyebolt and mudguard stay 54 and lies in the bifurcated end of the frame member 50, the parts being clamped by a nut 51. The lock 43, which is provided with a dust-cap 55 and may serve as a footstep, thus cannot be removed without dismounting the wheel.
Patent GB-548811-A (GB)
Title: Safety and remote control devices for controlling the flow of liquids and gases
IPC: F16K31/122
Filed: 1941-05-29
Abstract: 548,811. Stop valves. GODDARD, A. S. May 29, 1941, No. 6892. [Class 135] The valve a of a water or gas main is opened and maintained open by compressed air supplied through an adjustable valve e to a cylinder or cylinders d, the air supply pipe which comprises glass tubes being arranged in close proximity to the main so as to be fractured by an explosion likely to break the main and thus allow the valve a to close. The air pipe may also be used to operate the valve from a remote point.
Patent GB-385794-A (GB)
Title: Improvements in or relating to buzzer arrangements for converting direct current into alternating current
IPC: H01H51/34
Filed: 1931-09-17
Abstract: 385,794. Induction coils. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Sept. 17, 1931, No. 6990/32. Convention date, Oct. 8, 1930. Divided on 386,619. [Class 38 (ii).] Means for generating an alternating current for use in a telecommunication system comprises a primary winding 21 and secondary winding 26 on a closed core 29 which is also arranged to form a flux path including an air gap, the flux therein being utilized to operate an interrupter 28 in circuit with a part of the winding 21 and battery 25 for producing calling or signalling current. The device is also adapted for transmitting speech current, the whole of the winding 21 being used in conjunction with a microphone 23. Specifications 4166A/05 and 4167/05, [both in Class 38, Electricity, Regulating &c.], are referred to.
Patent GB-198455-A (GB)
Title: Improvements in automatic control valves
IPC: F16K3/24
Filed: 1922-03-09
Abstract: 198,455. McGrew, J. A., and Loree, J. T. March 9, 1922. Relay or power apparatus.-In a valve device particularly applicable for use in connection with the control mechanism of vehicle propulsion units whereby pressure is admitted to a booster motor synchronously with the entrainment of the motor transmission gear with the driven axle, the valve comprises a spring loaded piston 11 and is connected by a spindle 12 to a rocking member carrying an intermediate toothed wheel adapted to couple a toothed wheel 16 on the driving shaft 15 to a driven wheel 19. The outlet port of the valve is of greater width than the diameter of the cylinder around which it extends to form side pockets 8 having a tapered part 9 so that in the event of the teeth not engaging when pressure is admittted to energize the motor and entrain the gear only a small supply of pressure fluid is allowed to pass. This supply is sufficient to turn the motor to permit the full engagement of the teeth and at the same time permit a full supply of steam. Specifications 194,928, 197,120, and 198,456 are referred to.
Patent GB-310611-A (GB)
Title: Improvements in or relating to low pressure steam generators or water heaters
IPC: F24H1/38
Filed: 1928-03-07
Abstract: 310,611. Clarkson, T. March 7, 1928. Water-tube boilers.- A low pressure steam boiler and water heater consists of two similar water chambers A, B with inwardly projecting, tapering closedended tubes F placed opposite to one another to form the sides of the heating space, which is rectangular in crosssection and which has a larger cross-sectional are at its lower end. than at its upper end. The plates A<3>, B<3> forming the outer walls of the chambers may be removable. The tubes may be formed integral with the inner walls of the chambers.
Patent GB-279700-A (GB)
Title: Improvements in magazine pencils of the self feeding type
IPC: B43K21/08
Filed: 1927-03-14
Abstract: 279,700. Feldman, E. D. March 14, 1927. Pencil holders. - In a magazine pencil holder, a fixed split guiding-member for the lead extends into the lower end of an inner tube rotatable in the outer casing and co-operating with means carried by the guiding-member for projecting or withdrawing the lead. The inner tube 3, which forms the magazine, is rotatably mounted in the casing 1 by means of a ferrule 4, rotation of the inner tube being effected by means of a two-part cap. The part 6 of the cap is secured to the ferrule 4, and the other part 7 screws on to the open end of the inner tube. The lower end of the tube 3 is provided with an internally screw-threaded ferrule 9 engaging pinions 14, 15 carried by a member 12. The pinions 14, 15 are formed with a corrugated or toothed circumferential groove for engaging the lead 16. The member 12 is formed integral with a part 17 forming the bottom of the magazine, and with an upper and a lower leadguide 18, 19 respectively, and is secured in the pointed lower end of the casing by a tip 21. The parts 17, 18, 19 are split and a spring ring 23 tends to contract the split parts and cause the pinions 14, 15, to grip the lead.
Patent GB-634027-A (GB)
Title: Improved silencer for the exhaust gases of internal combustion engines
IPC: F01N13/16
Filed: 1948-03-08
Abstract: 634,027. Exhaust silencers. SUCKLING, C. March 8, 1948, No. 7125. [Class 7 (ii)] A straight-through silencer has an expansion chamber K containing coaxial tubes E of wire mesh or expanded metal. A section C of asbestos piping is inserted before or after the expansion chamber.
Patent GB-568070-A (GB)
Title: Improvements in windows
IPC: E06B3/50
Filed: 1943-05-06
Abstract: 568,070. Windows. CLARK, G. May 6, 1943, No. 7164. [Class 20 (iii)] The upper and lower corners at one edge of a window sash 5 are provided with pins 4 pivotally mounted in supports 3 which are slidably mounted in the slotted upper and lower members 2 of the stationary window frame whereby the sash can be rotated, for cleaning, and simultaneously moved along the slots so that what was the loft-hand side of the sash can be moved to become the right-hand. In a modification pinions may be formed on the pins to engage racks in the stationary frame members and locking means for the sash at opposite ends of its travel may be provided. In another form the supports are interconnected by a system of cables and pulleys.
Patent GB-946521-A (GB)
Title: Magnetic core matrices
IPC: G11C11/06
Filed: 1962-02-23
Abstract: 946,521. Circuits employing bistable magnetic elements. KIENZLE APPARATE G.m.b.H. Feb. 23, 1962 [Feb. 23, 1961], No. 7201/62. Heading H3B. [Also in Division G4] Non-destructive scanning of the columns of a core matrix by regeneration is controlled by a magnetic core pulse distributer, the scanning pulses being derived from the charging and discharging of the interstage capacitors (Fig. 2) or, if a longer delay between read-out and readin is required, from the transfer windings and the interstage capacitors (Fig. 5). In Fig. 2, the charging of capacitor 82 provides a current pulse - Hm on line 15/2 which reads-out the cores 2a to 2d on to lines 16a to 16d. Half-write currents are provided where appropriate on lines 17a to 17d the other current coming from the discharging capacitor. A more sophisticated pulse distributer is described with reference to Fig. 4 (not shown). If a longer delay between read-out and read-in is required the circuit of Fig. 5 is used. The transfer winding A1 is coupled to the second column of cores, as is capacitor 82. When core 31 switches a current - Hm is applied to the cores 2a to 2d reading them out. It is only when core 32 switches that capacitor 82 is effective, first to apply a current of - Hm which is ineffective, and then the half-write current. The delay between read-out and regeneration depends on the frequency of input pulses to the pulse distributer. Right shift of the columns of a matrix is shown in Fig. 6. Similar features of Figs. 5 and 6 are similarly lettered. Activation of transfer winding A1 clears column 4 and when A2 clears column 3 the coincident energization of the write drivers and line B2 writes column 3 into column 4. Vertical shift by transposing the write drivers outputs relative to the read amplifiers inputs is also described (Fig. 7, not shown). Specification 802,152 is referred to.
Patent GB-1392775-A (GB)
Title: Drive box of an oscillatory doffer comb for textile industry  carding plants with a protective labyrinth of the oil seal  packing arranged around the rotary shaft
IPC: D01G15/48
Filed: 1973-02-14
Abstract: 1392775 Drive box seal for carding machine doffer combs M CIOFI 14 Feb 1973 [16 Feb 1972] 7227/73 Heading DIN A drive box containing the oscillatory drive of the doffer comb in a carding machine has a drive shaft 7 which enters through an annular oil seal 10, the oil seal being protected from loose fibres by a labyrinth formed between the box casing 1 and a member 9 on the drive shaft. The member 9 may be a drive pulley for the box.
Patent GB-564150-A (GB)
Title: Improvements relating to the lubrication of internal combustion engines
IPC: F01M1/08
Filed: 1943-05-07
Abstract: 564,150. Lubricating systems. GARDNER & SONS, Ltd., L., GARDNER; J. H. S., and GARDNER, J. K. May 7,1943, No. 7284. [Class 12 (iii)] [Also in Group XXVI] In force - feed lubricating systems for internal-combustion engines, the cylinder wall h is lubricated by a jet through a hole g in the piston, the jet issuing from holes f in the connecting-rod b and sleeve e when the piston is at its top dead centre. The oil may rebound from the cylinder wall onto ribs in the piston interior so as to assist in cooling the piston.
Patent GB-253600-A (GB)
Title: Improvements in apparatus for stacking biscuits and similar articles
IPC: B65B23/12
Filed: 1925-03-18
Abstract: 253,600. Baker, Perkins, Ltd., (Finsk-Engelska Biscuit Fabrik Aktiebolaget). March 18, 1925. Packeting biscuits &c. in receptacles. -Apparatus for stacking biscuits and similar articles in position to be readily grasped for packing operations comprises a conveyer a, Fig. 1, adapted to receive the biscuits in haphazard arrangement, which feeds them forward to three series of rollers c - - c<2>. The first series e is more widely separated than the second and third, and all are rotated in a direction opposed to that of the oncoming .biscuits so as to arrange them in spaced rows. The conveyer passes round a knife edge a<3>, at which point the biscuits are delivered in rows, to an upward extension h<3> of a table h divided into troughs h<1>. Wheels e rotate on a spindle f in slots in the table, curved radial plates g collecting the biscuits and forwarding them along the troughs in a vertical position or on edge.
Patent GB-664525-A (GB)
Title: Improvements in or relating to the separation of hydrocarbons and oxygenated compounds from mixtures
IPC: C07C9/14
Filed: 1949-03-17
Abstract: Mixtures of hydrocarbons and oxygenated compounds produced by a Fischer-Tropsch synthesis are treated with a selective solvent for the oxygenated compounds, the raffinate is treated with a selective solvent or adsorbent for the aromatic, condensed ring, and conjugated hydrocarbons, and olefins are separated from the second raffinate. They may be polymerized to lubricants using Friedel-Crafts' catalysts.  A synthetic naphtha may be treated with alkali to remove acidic compounds, and distilled to separate a 100-600 DEG  F. fraction which is subjected to the solvent extraction. Alternatively, the acid-freed naphtha is extracted with the solvent for oxygenated compounds, and the raffinate distilled to separate fractions of up to 400 DEG , and 400-600 DEG  F. The latter is extracted with the solvent for cyclics, and the raffinate freed from solvent and mixed with the former fraction to give a feed for lubricant synthesis.  The product obtained from CO and H2 in the ratio of 1.5-1.8 : 1, using a Group 8 metal or oxide at 500-650 DEG F. and 300-500 p.s.i. with a recycle ratio of 2-5 : 1, may be distilled to separate a 100-600 DEG  F. fraction which is treated with aqueous methanol or a mixture of alkali hydroxide, alkali petroleum sulphonate and a hydrocarbon of lubricating oil boiling range to remove oxygenated compounds. The raffinate may be treated with liquid SO2 to remove aromatics, which are recovered and freed from olefines, e.g. by aluminium chloride treatment.  Other solvents for oxygenated compounds specified are aqueous acetone and acetic acid, mono- and di-ethylene glycols.  Solvents for cyclic and conjugated hydrocarbons include phenol, aniline, tri- and hexa-ethylene glycols, sulpholones, sulpholenes, and furfural. Diluents such as n-pentane or butane may be mixed with a solvent such as liquid SO2 to cause separation of aromatic and non-aromatic constituents.  A selective adsorbent such as silica gel may be used instead of a solvent for removal of cyclic and conjugated hydrocarbons.  Examples illustrate the improvement in yield and quality of lubricating oil obtained by polymerizing an olefinic product separated by the present process.  The Specification as open to inspection under Sect. 91 comprises the treatment of mixtures other than Fischer-Tropsch products, for example, products of hydrocarbon oxidation, and the use of silica gel instead of a solvent for removal of oxygenated compounds and cyclic and conjugated hydrocarbons.  This subject-matter does not appear in the Specification as accepted.
Patent GB-575974-A (GB)
Title: Rove stop mechanism for spinning, twisting, and like textile machines
IPC: D01H13/18
Filed: 1944-04-21
Abstract: 575,974. Rove-stop mechanism for spinning &c. machines. BOYD. Ltd., J. & T., and WARNOCK. M. April 21, 1844, No. 7388. [Class 120 (ii)] In a rove-stop mechanism for the spinning &c. of flax &c. of the type including a detector 5 operative on breakage or failure of the yarn or rove, the detector 5, pivoted at 6, bears with adjustable pressure on the yarn or rove just above its entry into the flyer 4, and is connected by a link 7 to a pressure lever 8, pivoted at 8 <3>, which is linked at 11 with a weighted lever 12 applying pressure to the top rollers 9, 10. On breakage of a yarn or rove, the detector 5 swings to the left, allowing the link 7 to fall under the force of the weighted lever 8, a further weight 14, having a cam surface 14<1> then coming into action on the pin 14<3> so to provide the additional force necessary to lift the weighted lever 12 to separate the rollers 9, 10. Simultaneously, the projection 14<2> on the weight 14 moves inwardly to clamp the rove against the stationary face 15. During piecing, the detector 5 is swung to the right, allowing the rollers 9, 10 to come together and deliver yarn, whereafter it is again swung to the left to contact with the pieced yarn.
Patent GB-552968-A (GB)
Title: Magnetic cores
IPC: H01F1/22
Filed: 1942-06-02
Abstract: 552,968. Coating surfaces. STANDARD TELEPHONES & CABLES, Ltd. June 2, 1942, No. 7457. Convention date, March 8, 1941. [Class 95] [Also in Groups XXXV and IV] Magnetic dust covers in which ferro magnetic particles are held together by a binder are provided with an insulating protective coating by applying a mixture of an alkyd resin and titanium dioxide particles, heating to mature the resin, tumbling with steel balls to smooth the surface, applying a further mixture of the above materials and again heating to mature the second layer. The resin may be a reaction product of phthalic acid and glycerine or of other polybasic acids and polyhydroxy alcohols and is modified with a fatty acid derived from a drying oil such as linseed or tung oil.