baber/WOPTO huggingface dataset:
Patent GB-551993-A (GB)
Title: Improvements relating to the production of laminating and composite textile fabrics
IPC: D06M17/00
Filed: 1941-09-16
Abstract: 551,993. Artificial silk etc.; compound fabrics. BRITISH CELANESE, Ltd. Sept. 16, 1941, No. 11838. Convention date, Oct. 24, 1940. [Class 2 (ii)] [Also in Group VIII] A laminating fabric adapted to be united to another fabric or fabrics by the application of heat and pressure is obtained by ageing in a moist atmosphere at an elevated temperature a fabric containing filaments, fibres, or yarns of an organic derivative of cellulose, and a plasticizer therefor. The process facilitates absorption of the plasticizer by the cellulose derivative fibres and in the case of fabrics containing non-thermoplastic fibres as well as cellulose derivative fibres it facilitates migration of the plasticizer from the. other fibres to the cellulose derivative fibres and removes any greasiness due to unabsorbed plasticizer. The ageing treatment may take place in a chamber maintained at 30-70‹C. The humidity may be maintained at 30 per cent. relative humidity up to saturation. Live steam may be introduced into the ageing chamber to maintain the desired humidity. The laminating fabric may contain 25-35 per cent. of cellulose acetate or other cellulose ester or ether fibres together with fibres of cotton, regenerated cellulose, linen, silk, or wool. The fabric may be made by weaving, knitting, knotting, or netting, preferably in such manner that the cellulose derivative fibres form floats on the surface of the fabric. The plasticizer may be incorporated to the extent of 90-140 per cent. of the cellulose derivative. The plasticizer may be a sulphonamide, phthalate, tartrate, phosphate, or triacetin. Pigments may be incorporated in the cellulose derivative filaments during their manufacture. A composite fabric may be obtained by wetting with water or steam an assembly of fabrics including the laminating fabric and then subjecting to heat and pressure, or by subjecting the assembly to heat and pressure in the absence of liquids or in the presence of solvents or swelling agents. Laminated or composite fabrics may be made for use in making collars, cuffs, neckbands, sweat bands for hats, visors for caps, gauntlets for gloves, stiffening material for coats, or headpieces for gas masks. Specification 502,701, [Group VIII], is referred to.
Patent GB-664626-A (GB)
Title: Improvements in or relating to under-arm safety shavers
IPC: B26B21/10
Filed: 1949-05-04
Abstract: 664,626. Shaving appliances. WALKER, J. S., and FRASER & GLASS, Ltd. March 9, 1950. [May 4, 1949] No. 11892/49. Class 30. In an underarm shaver, having a longitudinally curved support 1, provided with lateral comb teeth 3, 4 and a handle 2, at one end, a double-edged razor blade 9 is clamped to the support by a cover plate 8 and the surfaces of the teeth, on which the blade partly rests, are provided at a point 6 with a step or projection of a depth equal to the thickness of the blade. The teeth are curved or tapered towards their free ends from the point 6 and the head of the bolt 12 which with the nut 11 secures the cover plate and blade to the support, may be affixed to, or imbedded in the plate.
Patent GB-377230-A (GB)
Title: Improvements in electric protective arrangements
IPC: H02H3/42
Filed: 1931-04-22
Abstract: 377,230. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and MATHEWS, P., 7, Bilton Rise, Rugby. April 22, 1931, No. 11936. [Class 38 (v).] Polyphase electrical apparatus, such as generators and transformers, having an earthed neutral point are protected against an earth fault on the apparatus by a wattmeter type relay so connected with the phase currents and the neutral current that it is not responsive to earth faults outside the apparatus itself. One of the coils p of the wattmeter relay R2 is connected to three current transformers a, b, c in the phases supplying the apparatus. This coil p is connected with the second coil q and the remaining free ends of the two coils p, q are connected to a current transformer d in the neutral connection of the apparatus to earth so that both windings, in series, are energized by the transformer d. To obtain the desired selectivity, the nominal secondary current of the phase-current transformers is made slightly higher than that of the earth-current transformer.
Patent GB-1200512-A (GB)
Title: Improvements relating to information transmission systems
Inventor: GRAVINA TIMOTHY JAMES
IPC: H04Q9/04
Filed: 1968-03-12
Abstract: 1,200,512. Selective signalling. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. 11 March, 1969 [12 March, 1968], No. 11968/68. Heading G4H. A data transmission system as claimed in Specification 1,012,469, is modified in that the group of items for transmission/reception at the one station is divided into sub-groups, the subgroups and the items in a sub-group being selected by series connected counters advanced by the stepping signals. Groups of address gates AG and transmission gates TG1-TG3 are selected by sequencer 21 and have outputs to corresponding gates CTG11-CTGN8. A sub-group such as CTG11-CTG18 is scanned by a counter 4 and the serial outputs are passed by the sub-group selection gate CTG1-CTGN which is currently enabled by counter 5. On completion of a group scan, a reset signal is generated by counter 5 to cause sequencer 21 to select the next group of items. Reception is similar, sequencer 21 selecting output registers for each group of items. The items transmitted may include a command (preferably in the first sub group) to terminate the scan after a given number of sub-groups, detected by the corresponding stage of counter 5 holding a "1".
Patent GB-165282-A (GB)
Title: A new or improved truck frame for self laying track vehicles
IPC: B62D55/092
Filed: 1920-04-30
Abstract: 165,282. Blackstone, G. M., Carter, F., and Carter, E. April 30, 1920. Endless-track vehicles.-The trucks comprise an inverted V-shaped sheet-metal trough a<1>, the sides of which are braced by the truck roller axles d mounted therein. The driving-sprocket f<1> and idler g are mounted in castings f<2>, g on the truck frame, the top of which carries a track-supporting roller k. The truck rollers are lubricated by pipes h<1> leading from a lubricator h. Specification 141,963 is referred to.
Patent GB-859561-A (GB)
Title: Method for joining parts, at least one of which is of glass, and article made by said method
Inventor: CARPENTER FREDERICK CHARLES
IPC: H01B1/00
Filed: 1956-04-20
Abstract: 859,561. Soldering. SMITH & SONS (ENGLAND) Ltd., S. May 16, 1957 [April 20, 1956], No. 12115/56. Class 83 (4). [Also in Group XXXVI] In soldering two members, at least one of which is of glass, the glass member is coated in the region of the joint with an adherent metal layer, a conductive layer is provided on the glass contiguous with the metal layer, coatings of solder are provided on both the metal layers and the other member in the region of the joint, the solder coatings are placed in contact and an electric current is passed effectively between the conductive layer and the solder coating on the other member in the region of the joint until the solder softens and then the members are forced together. The heated top and base cylindrical glass parts of a case for an electrically energized instrument, the top having its closed end worked to provide a viewing aperture and the base having leads sealed thereto, are sprayed with a tin containing solution to provide conductive coatings. Silver containing paste, e.g. of silver powder, silver oxide and silver resinate is applied over the conductive coatings to the annular surfaces at the open ends of the parts and spaced therefrom, as bands to the cylindrical walls of the parts and the parts are heated to produce silver coatings. Soft solder is flowed on to the annular surfaces. The instrument is mounted in the lower part and with the parts engaged a current source is applied to the silver bands on the external walls to melt the solder. The parts are forced together and the source disconnected. U.S.A. Specification 2,118,795 is referred to.
Patent GB-710173-A (GB)
Title: Spray booth construction
IPC: B05B14/465
Filed: 1950-05-16
Abstract: 710,173. Washing gases; paint spray booths. MAHON CO., R. C. May 16, 1950 [Sept. 10, 1949], No. 12219/50. Class 55 (2). [Also in Group X] A paint spray booth (Fig. 1) comprises a housing 14 in which there is arranged above a water tank 10 a water washed screen 16 consisting of two series of vertically disposed channel-shaped elements 38 and 50 (Fig. 7) through which paintladen air is forced to pass to a washing chamber 32, and thence through eliminator 18 to an exhaust chamber 22. The elements 38 and 50 are rigidly secured to transverse members and are positioned in the housing by hooks 44 and 56, attached to the transverse members and which engage over trunnions 46 and 58 respectively. A baffle plate 62 and a tray 84 prevent the air bye-passing the screen 16. Water is recirculated from the tank 10 over the screen via a trough 20 and the spray pipe 70, the nozzles 72 of which are arranged to spray both series of elements 38 and 50. Paint removed from the air washed collects on the surface of the water in the tank 10 and flows over a weir 96 into a compartment 98 from which it is removed by an ejector 24. Specification 675,815, [Group I], is referred to.
Patent GB-559789-A (GB)
Title: Improvements in or relating to nautical logs
IPC: G01P5/16
Filed: 1942-09-01
Abstract: 559,789. Nautical logs; indicating. HOWLAND. E. R. Sept. 1, 1942, No. 12278. [Class 69 (i)] [Also in Group XIX] A nautical log for boats or relatively small ships comprises a Pitot tube, of which the impact orifice projects approximately through the mid-line of the bottom of the boat &c., a static orifice flush with the bottom of the boat &c. on one or both sides of the tube, pressure chambers below the draught line inside the hull and connected to the impact and static orifices, a yielding diaphragm forming an air compartment within each pressure chamber, and tubes connecting each compartment with a differential pressure gauge, forming part of a speed indicator. A Pitot tube A of oval section extends through the keel through a fitting B with a gland and a valve permitting removal of the tube, and a static orifice C is provided on each side of the keel, the tube A and orifices C being connected respectively to pressure chambers E, D, placed below the waterline, air traps B<SP>3</SP>, C<SP>3</SP>, being provided. Each chamber D, E, comprises a rubber &c. diaphragm D<SP>2</SP>, E<SP>2</SP>, held by a cover D', E', so as to form an air compartment connected by a capillary tube D3 or E<SP>3</SP>, to a differential pressure gauge actuating a spindle G' and pointer G of a speed indicator. Distance travelled is indicated by means of an electric motor J energized through a relay by a clock H and driving through worm &c. gearing a rotatable member J<SP>1</SP> acting through a link J<SP>2</SP> to rock a bell-crank lever J<SP>3</SP>; the lever J<SP>3</SP> has a pin J<SP>4</SP> adapted to rock an integrating lever K through an arc controlled by a cam O on the spindle G<SP>1</SP>, the lever K acting through pawl K', ratchet wheel L and gears L' to drive recording mechanism M. The member J' is formed as a cam controlling a further contact P whereby the motor circuit is broken after one revolution of the member J<SP>1</SP>. A clockwork motor with suitable escapement mechanism may replace the electric motor.
Patent GB-705542-A (GB)
Title: A process for the recovery of germanium from tar residues
IPC: C01G17/00
Filed: 1952-05-15
Abstract: At least the bulk of the organic constituents of a tar residue is first removed, and the remaining mixture containing the inorganic constituents is then worked up for the recovery of germanium, with or without titanium, vanadium, or other valuable elements contained in the initial tar residue.  The organic constituents may be removed by combustion of the tar residue with simultaneous sublimation of the germanium compounds, if desired with the addition of agents promoting sublimation, by volatilization, by extraction with solvents, or by oxidation treatment with acids.  The inorganic remainder contains a relatively high proportion of carbon in the form of pitch coke which, in the further treatment, reduces the germanium compounds. The further treatment may be carried out in stages between 95 DEG  C. and 450 DEG  C.
Patent GB-965041-A (GB)
Title: Improvements relating to knitting machines
IPC: D04B11/04
Filed: 1962-03-30
Abstract: 965, 041. Knitting. GEB. SCHELLER TEXTILMASCHINENFABRIK G. m. b. H. March 30, 1962 [April 1, 1961], No. 12351/62. Heading D1C. A straight-bar rib machine has twice as many frame needles 2 as machine needles 3 and when knitting rib work the machine needles 3 are shogged half a needle space after the machine needles 2 have been lowered so as to receive the loops 20b deliberately avoided by the alternate frame needles 2b which loops drop on to the machine needles from the sinkers, Figs. 5a, 6a. The shogging of the machine needles aligns them with the alternate frame needles which have been rendered imperative by auxiliary pressers causing them to miss the yarn. The machine and frame needles are thereby evenly spaced and a rib fabric having a more uniform loop structure is thereby achieved. The machine needle bar 23 is supported by arms 29 carried by levers 24 which are operated from the main cam-shaft to impart the knitting motions to the needles. The levers 24 are secured to a shaft 8 carrying an end-faced cam 13 co-operating with a similar cam 7c on a vertically movable arm 7 actuated by a cam on the cam-shaft to cause the arm 7 to lower and thereby shog the shaft 8 and machine needles 3 at the appropriate stage in the knitting cycle.
Patent GB-720952-A (GB)
Title: Hair curling device
Inventor: WEAVER RUTH KAHAN
IPC: A45D2/10
Filed: 1953-05-04
Abstract: 720,952. Hair curlers. GAYLORD PRODUCTS, Inc. May 4, 1953, No. 12355/53. Class 131. A hair curler, on which hair is wound and subjected to a cold permanent wave process through to the final drying stage, includes a spool of one-piece skeletal construction having a number of U-shaped ribs with their medial portions radially disposed and circumferentially spaced about the outer periphery of a ring-shaped hub to define an annular groove to receive a wound tress of hair. Ribs 5, connected together in pairs a, b, c, d at their outer ends, are joined to a central hub 4 and are interconnected in pairs by braces 9 to provide a skeletal spool 2 allowing free passage of liquid through the hair wound in the annular groove 6 and retained by a locking cap 3 having legs 14 interconnected by arms 12 and provided with scalp-contacting feet 17 engaging beneath the braces 9.
Patent GB-780648-A (GB)
Title: Improvements in or relating to alkyl-substituted tetrahydronaphthindanones
IPC: C07C49/813
Filed: 1956-04-23
Abstract: Novel alkyl substituted tetrahydronaphthindanones having a musk-like odour are prepared in three steps: (1) preparation of alkyl substituted tetrahydronaphthalenes; (2) condensation of the latter with b -chloropropionyl chloride to the corresponding b -chloroethyl ketones; and (3) cyclization of the latter with elimination of hydrogen chloride.  4,6,6,9-Tetramethyl - 6,7,8,9 - tetrahydro a  - naphthindan-3-one is prepared by reacting methyl magnesium iodide with 5-p-tolyl-hexan-2-one to yield 2-methyl-5-p-tolyl-hexan-2-ol. The latter is added to 93 per cent sulphuric acid at 0 DEG  C. and 1,1,4,7-tetramethyl-1,2,3,4-tetrahydronaphthalene is produced. To this product is added b -chloropropionyl chloride, anhydrous aluminium chloride and ethylene dichloride.  The crude b  - chloro - ethyl - 1,1,4,7 - tetramethyl - 1,2,3,4 - tetrahydronaphthyl - 6 - ketone so obtained is heated to 70 DEG  C. with 93 per cent sulphuric acid and the product extracted with benzene and crystallized from alcohol.  5,5,8,8-Tetramethyl - 5,6,7,8 - tetrahydro - b  - naphthindan - 1 - one and 4,6,6,9,9-pentamethyl - 6,7,8,9 - tetrahydro - a  - naphthindan-3-one are prepared by a similar method using 1,1,4,4 - tetramethyl - 1,2,3,4 - tetrahydronaphthalene, and 1,1,4,4,6 - pentamethyl-1,2,3,4 - tetrahydronaphthalene respectively in stage 2.  In the cases of the preparation of 4 - ethyl - 6,6,9,9 - tetramethyl - 6,7,8,9 - tetrahydro - a  - naphthindan - 3 - one and 4 - isopropyl - 6,6,9,9 - tetramethyl - 6,7,8,9 - tetrahydro - a  - naphthindan - 3 - one from 2,5-dichloro - 2,5 - dimethyl hexane and cumene respectively, anhydrous ferric chloride is used to prepare the alkyl substituted tetrahydronaphthalene.
Patent GB-494734-A (GB)
Title: Improvements in radio receivers
IPC: H03J7/02
Filed: 1937-04-30
Abstract: 494,734. Automatic tuning correction. MURPHY RADIO, Ltd., and BAKER, G. B. April 30, 1937, No. 12375. [Class 40 (v)] To prevent the automatic frequency control of a radio receiver from seeking an adjacent strong signal when the desired signal fades, the error detector is made inoperative, when the signal falls below a predetermined limit, by means of a valve or thermionic impedance controlled in dependence on signal strength. In the Figure, the thermionic reactance 17 is connected across tappings, formed by blocking condensers 16, on the inductances 14 of the two tuned circuits 1, 2 of the discriminator ; these are tuned above and below the true I.F. and are coupled to the I.F. amplifier 4 over condensers 3. The preferred inductance ratio of portions 15, 14 is 1 : 9. The valve 17 is biassed as shown, from the potentiometer 23, 22 across the anode-cathode circuit of the low-frequency pentode 20. With no signal, pentode 20 is biassed to cut-off by resistance 21, (its suppressor grid being then at earth potential) and valve 17 has in these conditions a small negative bias. When 20 becomes operative on reception of a signal of sufficient strength, its anode voltage falls, valve 17 is thereby biassed to cut-off and the error detector becomes fully operative. When 17 is operative, it acts as a low-impedance path for I.F. currents across the two discriminator circuits and there is thus no resultant voltage across the two diode load resistances 6; there is still a signal voltage developed across each resistance 6 but these are equal and opposite when 17 is operative even if the receiver is off-tune, the voltage across one resistance being employed to release the muting of pentode 20 by raising its suppressor grid bias. The valve 17 may be controlled by A.V.C. potentials instead of by the muting circuit, Fig. 1 (not shown) ; it may be associated with any other kind of error detector, and may be shunted directly across one circuit of the discriminator 1, 2, to bring it in tune with the other and thus reduce the A.F.C. voltage to zero or weak signals, Fig. 3 (not shown). The muting range of the pentode 20 may be made very narrow by conductive reciprocal coupling between the anodes and grids of valves 17 and 20. Specifications 443,423 and 453,858 are referred to.
Patent GB-1151391-A (GB)
Title: Vehicle Rear Suspension
Inventor: MOULTON ALEXANDER ERIC
IPC: B60G3/14
Filed: 1967-03-16
Abstract: 1,151,391. Vehicle independent suspensions. MOULTON DEVELOPMENTS Ltd. 23 April, 1968 [16 March, 1967], No. 12428/67. Heading B7D. A vehicle has a rear suspension system comprising two wheels each carried on a trailing arm 1 formed at its forward end as a sleeve 2, which is journalled on a shaft 4, the shaft extending transversely across the vehicle and having its ends attached to the vehicle sprung structure by resilient mountings 6, a pair of casings 7 which are each fixed to the shaft 4 and mount an hydraulic displacer unit 8, crank means 10 on each trailing arm associated, for example by a push-rod 11, with a respective displacer unit so that deflection of a wheel is accompanied by a deflection of a displacer unit occasioning torque in the transverse shaft 4 and an arm 20 rigidly fixed to the shaft 4 and extending radially therefrom to a flexible mounting 21 on the sprung structure to resist said torque. The height of the rear of the vehicle may be adjusted by a resiliently mounted manually- or electricallyoperated screw jack between the free end of the arm 20 and the sprung structure.
Patent GB-551678-A (GB)
Title: Radio receivers
IPC: H03G3/22
Filed: 1941-09-26
Abstract: 551,678. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. Sept. 26, 1941, No. 12491. Convention date, Oct. 4, 1940. [Class 40 (v)] In a radio receiver means are provided for controlling the gain in inverse proportion to the amplitude of the received carrier the degree of the control being in proportion to the rate of variation of the amplitude of the received carrier. The invention is shown applied to a single side-band receiver in which the output from the high-frequency stage 12 is fed to two paths including a side-band filter 13 and a carrier filter 14. The side-band channel includes an amplifier 16, detector 17 where the signal is demodulated by a carrier source 18, and an audio-frequency amplifier 19. The output from carrier filter 14 feeds three paths, an amplifier 20 and A.V.C. rectifiers 21, 22. Rectifier 21 includes a diode 23 having a load circuit 25, 26 for feeding to the high-frequency stage a slow acting A.V.C. voltage by line 15 to give a preliminary levelling of the output of stage 12. The output from amplifier 20 is fed through an amplifier 30 having a linear grid characteristic of the sharp cut-off type to a rectifier circuit 33, 35 which through a filter 36 provides a fastacting A.V.C. voltage to amplifiers 16 and 20. Rectifier 22 includes a diode 27 which produces across its load 29 a voltage dependent on the varying carrier amplitude. This voltage, when passed through. a high pass filter 39 and rectifier bridge 42 produces across resistance 44 a voltage which is proportional to the rate of variation in carrier amplitude, subject to a maximum set by a biased diode limiter 52. A voltage is taken from a tapping 48 on resistance 44 through filter 50 to apply a fast-acting A.V.C. to amplifier 30. Thus the A.V.C. voltage applied to amplifiers 16, 20 is less when the carrier is varying rapidly. The voltage applied to 16, 20 is the sum of the voltages across 35 and 44, so that the decrease in the voltage across 35 due to variation in the carrier is compensated by the increase in voltage across 44 due to the same cause. When the carrier is changing slowly there is no voltage across 44 and amplifier 30 supplies an A.V.C. voltage in accordance with the carrier level. When the carrier is fading very rapidly, voltage from 44 blocks amplifier 30 and the voltage applied to 16 and 20 is just the fixed voltage across 44, which maintains a fixed output level. For intermediate conditions the A.V.C. voltage applied to 16 and 20 is a combination of the voltage supplied by amplifier 30 and the voltage across 44. This is stated to meet the problem of selective fading on short wave signals.