baber/WOPTO huggingface dataset:
Patent GB-1047276-A (GB)
Title: Improvements in or relating to analogue-to-digital converters
Inventor: SMITH GEORGE MITCHELL
IPC: H03M1/00
Filed: 1964-06-26
Abstract: 1,047,276. A-D converters. GENERAL ELECTRIC CO. Ltd. June 24, 1965 [June 26, 1964], No. 26547/64. Heading G4H. An analogue current may take any value within +64 and - 63 and is combined with a bias current value- 64, whereby the biased analogue current lies between -127 and zero. This current is applied to a polarity detector 3, Fig. 1 (nor shown) together with the output of binary-weighted resistor network 7 which initially has the value + 64 (from R1 and gate G1). If the resultant current applied to detector 3 is negative, no output is produced (signifying binary 1) and gate 21 (enabled by digit 1 pulse D1) does not set trigger 8. At the end of D1, trigger 9 is set to produce an output + 96 from network 7 for the digit 2 comparison, and if the resultant current applied to detector 3 is then positive, a pulse is produced (signifying binary 0) to pass through gate 22 (enabled by D2) to reset trigger 9. The output of network 7 for the digit 3 comparison would then be +80 (from R1 and R3). The operation is similar for succeeding digit comparisons except that the least significant increment (+1) is applied directly during the final digit interval D7. A drift compensating circuit, Fig. 2 (not shown) may be included in the bias source.
Patent GB-207318-A (GB)
Title: Improvements relating to hydraulically operated clutches for change-speed gearing
IPC: F16D25/064
Filed: 1922-10-03
Abstract: 207,318. Stephens, A. J., (Mayer, D.). Oct. 3, 1922. Friction clutches comprise an inner pair of members c, c' which form together a cylinder and piston adapted to be thrust apart by pressure fluid so as to engage a pair of outer rigid clutch members d, d<1>. There are annular chambers w, w<1> of smaller area constantly supplied with pressure fluid while the clutch is in engagement through channels g, f. Directly the preesure fluid to the main clutch chamber is cut off, the chambers w, w' expand, disengaging the clutch. As applied to variable-speed gearing, control of the clutches is effected by a rotatable valve. Specification 208,278 is referred to.
Patent GB-268675-A (GB)
Title: Improvements in or relating to tuning devices for stringed musical instruments
Filed: 1926-10-26
Abstract: 268,675. Kern, W., and Kern, B. Oct. 26, 1926. Addition 'to 243,6-14. Stringed instruments, tuning-devices for.-The fine-tuning device of the parent Specification is provided With anchoring means consisting of lugs 86 entering the hole 88 in the tail-piece, and a string-receiving groove in a lateral part 80 inserted between the string and the tail-piece. The ends 90, 91 of the pressing-lever are turned under as shown.
Patent GB-427452-A (GB)
Title: Improvements in and relating to chain drives
IPC: F16H7/06
Filed: 1934-09-18
Abstract: 427,452. Chain gearing; sprockets. GEWERKSCHAFT EISENHUTTE WESTFALIA, L³nen, Westphalia, Germany. Sept. 18, 1934, No. 26752. Convention date, June 26. [Class 80 (i)] [See also Group XXV] A chain is composed of oval interlooped links provided with cross-bars 2 to engage the teeth 4 of a sprocket-wheel. Each tooth may be slotted to engage the bars on both sides as shown, or each bar may be displaced towards one end of the link to engage a single tooth on one side. The cross-bars may be shaped to give rolling contact with the teeth at engagement and disengagement.
Patent GB-1434897-A (GB)
Title: Fastening device
IPC: F16B13/10
Filed: 1974-06-17
Abstract: 1434897 Anchoring bolts A FISCHER 17 June 1974 [15 June 1973 23 June 1973] 26792/74 Heading F2H A fastener for anchoring in a building component 13 comprises an expansible sleeve 2, an expander member having an expander portion 3 rigid with a screw-threaded shank 4 which extends through the sleeve to project from the sleeve end remote from the expander portion 3, and a shaft 5 having an external diameter equal to that of the unexpanded sleeve and an axial bore 6 internally threaded to engage the projecting end of the shank 4, the end of the sleeve remote from the expander portion 4 having a cover cap 14 with a flange 15 surrounding the adjacent end portion of the sleeve 2. The fastener is inserted in a bore 12 in the building component, and the shaft 5 may have a head 7 to retain a member 13a against the component, or an externally threaded outer end portion to receive a retaining nut or a cap nut by which the shaft may be turned to anchor the fastener. In Fig. 1, the sleeve 2 is a closed coiled helical spring of soft metal such as copper. The expander portion 3 has a frusto-conical section 3a, and a stop flange 11 equal in diameter to the outside diameter of the unexpanded sleeve. A plastics cap 14 which is a friction fit in the bore 12 encloses the end of the sleeve remote from the expander portion 3. The thread in the shaft bore 6 stops short of the mouth of the bore, and the unthreaded portion 8 has an annular groove 9 housing a resilient plastics locking ring 10. The fastener 111 of Fig. 2 is used in a cavity brick 121, and has a sleeve 112 comprising a number of rubber-like tubular sections 112a joined-together by metal discs 122. The expander member has a cylindrical head 113. A modification, Fig. 3, not shown, replaces the tubularsections by expansible sections (212a) each comprising two end collars (230) joined together by a number of arms (231) which bow outwardly when the sleeve is axially compressed. In Fig. 4, the sleeve 312 comprises individual rings 312a having frusto-conical bores 332, longitudinal slits, and end chambers 333 which engage in and expand the frusto-conical bores 332 of the next-adjacent rings. The shaft 315 has a smooth counterbore 318 to the threaded bore 316 to house an internally threaded sleeve 335 retained in the counterbore 318 by corrugations 336. In a modification, the bore 316 is unthreaded.
Patent GB-339339-A (GB)
Title: A process for applying a metal coating to aluminium by galvanic means
IPC: C25D5/44
Filed: 1929-09-03
Abstract: 339,339. Trairup, M. K. de. Sept. 3, 1929. Metals, depositing.-The surface of aluminium is prepared for electro-plating with another metal or other subsequent treatment by electrolytic deposit of an amalgam. The preliminary bath may consist of 200 gms. caustic soda, 200 gms. sodamide, 40 gms. stannous chloride, 10 gms. zince chloride, 5 grms. mercuric nitrate, 10 gms. pure potassium hydroxide to 20 litres of water. The article is cleaned and pickled in the usual manner and then treated in the above bath for a few minutes at 1.5 volts. The article is then rinsed and may be plated with nickel, copper, gold, silver or other metal.
Patent GB-151285-A (GB)
Title: Improvements in cut-outs for electrical circuits
IPC: H01H85/26
Filed: 1920-09-20
Abstract: 151,285. Grob & Co., M. Sept. 20, 1919. [Convention date]. Fusible cut-outs.-A cartridge for a plug fuse is constructed to contain two fuse wires which may be interchanged by reversing the cartridge in the plug. An insulating body 11 has two bores containing fuse wires 17, 18 and end projections surrounded by contact rings 13, 14 and surmounted by caps 15, 16. Each cap is connected by a fuse with the contact ring at the opposite end. The base contact 4 of the fuse holder is cup-shaped and covered by a perforated plate 3 to admit an end projection of the cartridge and engage a ring contact 14, and connexion is established between a cartridge cap 15 and a flange 14 in the screw plug by an insulating ring 20 carrying a contact plate 21.
Patent GB-735887-A (GB)
Title: Crash helmet and method for making same
Inventor: ROTH HERMAN PAUL
IPC: A42B3/12
Filed: 1952-10-27
Abstract: 735,887. Head-sets. PROTECTION, Inc. Oct. 27, 1952, No. 26953/52. Class 40 (4). [Also in Groups V and VII] In a crash helmet earphones 20, 21 are located in recesses provided in the outer shell 4, each being carried by a yoke 22 secured to one end of a leaf spring 23 which is fastened at its other end by rivets 25 to the shell 4. A latching stem 26 extending through the shell 4 and provided with a notch 28 is also secured to the leaf spring 23, the notch 28 being adapted to engage the edge of an opening in a latch plate 30 to hold the earphone in a withdrawn position when putting on the helmet. A slight downward pressure on the ends of the stems 26 releases the notches 28 from the latch plates 30 and the leaf springs 23 swing the earphones against the wearer's ears.
Patent GB-839491-A (GB)
Title: Metal glazing bars
Inventor: MCKINLEY JAMES
IPC: E04D3/08
Filed: 1957-08-27
Abstract: <PICT:0839491/III/1> A metal glazing bar a (see Group X) of any cross-section is covered with a protective, coating b of a synthetic plastic material, e.g. polythene or polyvinyl chloride and is preferably made in a separate sheath by an extrusion process, to be drawn over the metal bar.  Narrow flexible flaps such as c, d may be formed on the sheath and act as weather seals in contact with the glass sheets e.  In an alternative construction the bar a has upstanding rigid parts from the base to support the glass sheets, the whole of the bar being enclosed in a covering b, which may be applied by dipping the bar in a bath of the covering material which liquefies by heat and hardens on drying.  Alternatively the material may be applied to the bar as a powder which is rendered adhesive and continuous when liquefied by heat.
Patent GB-927519-A (GB)
Title: Improvements in polyethylene compositions and their production
IPC: C08L23/06
Filed: 1961-07-25
Abstract: A polymer composition comprises substantially non-cross-linked polyethylene and 0,01 to 20% by weight thereof of a graft copolymer of cross-linked polyethylene and a vinylidene compound, e.g. acrylonitrile, methyl acrylate, ethyl methacrylate, vinyl acetate, styrene, vinyl pyrrolidone and 2-vinyl pyridine.  The crosslinking and grafting of the polyethylene are preferably effected by means of high-energy irradiation, e.g. accelerated electrons, pile radiation, and ultra-violet radiation in the presence of a sensitizer such as benzophenone.  The irradiation of the polyethylene may be carried out prior to contacting with the grafting monomer, or subsequent thereto. In the latter type of reaction the irradiation may take place in an oxygen atmosphere. The polyethylene to be used for cross-linking and grafting is preferably particulate in form, though it may be used in the form of films or sheets.  Alternatively the polyethylene may be cross-linked by chemical means prior to grafting.  The blending of the grafted polyethylene with the non-cross-linked polyethylene is performed at a temperature above the melting point of the latter. Both polyethylenes used in making the blends are preferably of the high density type.  The resulting polyethylene materials are stated to possess good clarity and dyeability.  Specification 904,985 is referred to. p
Patent GB-484566-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K1/50
Filed: 1936-10-05
Abstract: 484,566. Electric incandescent lamps. BRITISH THOMSON-HOUSTON CO., Ltd., DAVIES, L. J., WARREN, H. W. H., and HAMILTON, G. Oct. 5, 1936, No. 26976. [Class 39 (ii)] In a lamp wherein the filament is mounted in an envelope containing at its operating temperature a filling of gas or vapour or a mixture of gases or vapours at a pressure above atmospheric pressure, the volume of the envelope is small, having for a medium power lamp of, for example, 80 watts, a capacity of 1 to 10 cubic centimetres, whereby the small volume of the contents of the lamp reduces danger due to bursting and facilitates the production of a pressure above atmospheric in the lamp. The filling may comprise mercury, a predetermined amount of which is placed within the lamp, and the lamp shape and size may be so determined that, for example, the mercury is completely vaporized at two - thirds of the operating wattage. To prevent evaporation of the filament, or arcing, when the lamp is first switched on and the mercury pressure is consequently low, a separate heating- filament may be placed around the bulb, and a time-temperature operated switch so adjusted that the main filament is not switched on until the mercury has been sufficiently heated to reach the desired pressure A permanent gas such as argon or nitrogen, or a mixture thereof, at a pressure of about 300-600 mms. at atmospheric temperature, may also be added to the controlled quantity of mercury to prevent evaporation of the filament or arcing. Alternatively the lamp may contain argon, nitrogen or other inert gas, or a mixture thereof, at a pressure of one to ten atmospheres or more, and be fitted with a metal exhaust tube which is sealed off by pressing the sides of the metal together and then electrically welding them. The metal exhausting tube may be attached to the lamp by a glass-to-metal seal. In an example an 80 watt lamp with an internal volume of 1À5 cc. and a filling of 10 milligrams of mercury gives a working pressure of 15 atmospheres. The lamps may be of cylindrical form and made of quartz or hard glass ; an example is given, however, of a lamp of small diameter but of otherwise normal design with a spherical lead-glass bulb which withstands pressures up to 15 atmospheres. Specification 481,063 is referred to.
Patent GB-1502499-A (GB)
Title: Tunnel-type furnace having a flat roof structure
IPC: F27B9/32
Filed: 1975-06-25
Abstract: 1502499 Furnace roofs A ROLLA 25 June 1975 [12 July 1974] 27023/75 Heading F4B In a flat roof structure for a tunnel type furnace-comprising a plurality of self-supporting composite beams T arranged side by side and. extending between opposite side walls of the furnace, each beam comprises a plurality of trapezoidal section blocks 1 of refractory material joined together by means of expansion joints 2 and containing a metal core member 4 surrounded by a layer 3 of insulating material and embedded in the blocks 1, the core member 4 and the insulating layer 3 defining there between a cooling fluid passage 5 extending throughout the entire length of the beam. The cooling fluid is air and, as shown, opposite ends of the passages 5 are connected to supply and discharge pipes 6, 6<SP>1</SP> forming part of a cooling system. The core member 4 may have an I- or C-shaped cross section, and the insulating layer 3 may be or rock wool or kaolin wool.
Patent GB-699557-A (GB)
Title: Process for making stable silica sols and resulting composition
Inventor: RULE JOSEPH MCBATH
IPC: C01B33/148
Filed: 1951-11-17
Abstract: A stable silica sol is produced by adding an alkali metal hydroxide to a silica sol which contains amorphous, dense, non-agglomerated, spherical silica particles having an average diameter of 10-130 millimicrons, and which has a relative viscosity, measured at 10 per cent SiO2 and pH 10, of 1.15-1.55 and a specific conductance, measured at 10 per cent SiO2 and 29 DEG C, of less than 4 X 10-4 mho/cm; the amount of hydroxide added being enough to adjust the silica: alkali metal oxide mol ratio to from 130 : 1 to 500 : 1.  A solution of the alkali metal hydroxide may be added to a silica sol in which the size of the particles has been built up as described in Specification 667,154, and which has been treated with ion exchangers to remove anions and cations and thus lower the specific conductance. The final sol has a specific conductance of less than <FORM:0699557/III/1> mho/cm., where R is the silica: alkali metal oxide mol ratio.  By boiling under ordinary or reduced pressure, the sol may be concentrated to an SiO2 content of 50 per cent or more. When concentrated sols are to be prepared, it is desirable for the original sol to have an average particle diameter of 13-60 (referably 15-30) millimicrons, a relative viscosity of 1.15-1.30, and a specific conductance of less thtan 1 X 10-4 (preferably less than 6 X 10-5) mho/cm., and for the final sol to have a specific conductance of less than <FORM:0699557/III/2> mho/cm. and a silica: alkali metal oxide mol ratio of 150-300; preferably at least 80 per cent of the silica particles have a diameter 0.5-1.7 times the arithmetic mean diameter.  The hydroxide may be formed in situ by adding an alkali metal oxide or silicate.  Examples describe the stabilization of sols by the addition of lithium and sodium hydroxides.  The sols prepared are stable against gelation and are compatible with organic liquids, for example ethanol, isopropanol, ethylene glycol, acetone, methyl ethyl ketone, butyl carbitol, ethanolamine, trimethylamine, pyridine, and morpholine, and with organic polymers such as polyvinyl alcohol, gelatine and cellulose derivatives.  The sols containing organic liquids are resistant to freezing, and when frozen may be readily re-dispersed.  The products have film-forming properties and may be used for treating cotton, rayon, wool, and paper, or for plumping chrometanned leather; they may also be added to paints or wax emulsions.  Specification 645,703 also is referred to.
Patent GB-1458927-A (GB)
Title: Vehicle having steerable front and rear ground wheels
IPC: B62D7/14
Filed: 1974-06-19
Abstract: 1458927 Vehicle steering systems HARNISCHFEGER CORP 19 June 1974 [11 July 1973] 27084/74 Heading B7H A vehicle comprises a control system which enables the vehicle to be steered in a "conventional", "tight" or "crab" mode (represented by Figs. 6, 7; 8, 9; and 10, 11 respectively) by means of a single steering wheel. The desired steering mode is selected by operation of a mode selector switch MSL, and the control system includes means for automatically returning the rear wheels to their straight ahead position when the switch MSL is returned to its normal N position.
Patent GB-939062-A (GB)
Title: Alternating current machines
IPC: H02K21/24
Filed: 1959-10-28
Abstract: 939,062. Dynamo-electric machines. L.R. POWER CORPORATION. Oct. 28, 1959 [Oct. 28, 1958], No. 27097/63. Divided out of 939,061. Class 35. In a planar-air-gap machine in which a stationary disc-shaped winding lies between rotatable permanent magnets, part or all of the winding is movable to adjust the performance of the machine. The stator coils 40 (four as shown) are moulded into a disc of insulating material, adjacent coils being separated by insulating strips 44. The disc is clamped in a frame 162, 168 (Fig. 3) having grooves 163 permitting some radial adjustment of the whole winding body. Alternatively each coil may be moved separately outward from the centre, or half the winding may be so moved and the rest remain fixed. In Fig. 6, a fixed main coil 32 and a radially movable coil 172 are arranged in the air gap. Alternatively, mutually rotatable coils are arranged side-by-side in the air-gap (Figs. 7-11, not shown) and the movable coils may be spring restrained to make the machine self-adjusting for constant output. The stator windings may incorporate magnetic inserts.
Patent GB-878509-A (GB)
Title: Improvements in or relating to fuel injectors
Inventor: CARLISLE DENIS RICHARD
IPC: F23D11/38
Filed: 1959-08-08
Abstract: 878,509. Fuel atomizers. ROLLS-ROYCE Ltd. July 19, 1960 [Aug. 8, 1959], No. 27179/59. Class 75(1). A duplex fuel injector comprises a central pilot nozzle 12, a main nozzle 13 surrounding the pilot nozzle and a cowling 27 surrounding the outlet 26 of the pilot nozzle and adapted to divide the pilot fuel spray into a plurality of separate spray streams. The cowling 27 has a plurality of openended apertures 28 defining the spray streams. The pilot spray intercepted by the cowling is deflected downstream. The pilot fuel is fed by passages 16, 21, and tangential ports 25 to a pilot swirl chamber 24. The main fuel is fed by passages 15, 18 and tangential ports 31 to a main swirl chamber 30.
Patent GB-1017519-A (GB)
Title: Improvements in or relating to the drying of vegetables
IPC: A23L11/00
Filed: 1963-07-10
Abstract: 1,017,519. Drying vegetables. UNILEVER Ltd. July 10, 1963 [July 12, 1962], No. 27278/63. Heading A2D. Vegetables having a relatively tough, substantially continuous skin such as peas, broad or Lima beans and whole kernel corn, which are to be dried, are contacted with an edible water-soluble polyhydric alcohol under conditions such that at least 50% of the total amount of polyhydric alcohol taken up by the vegetable is localised in the skin, and the vegetable is then dried. Preferably the weight of polyhydric alcohol taken up by the vegetable forms from 3% to 30% of the weight of the dried vegetable. The vegetable may be partially dried before being contacted with the alcohol. Polyhydric alcohols: sugars such as sucrose, corn syrup, lactose and glucose, sorbitol, glycerol and propylene glycol. The polyhydric alcohol may be applied by dipping the vegetable into the alcohol or a solution thereof, by spraying, or by any other convenient method; to ensure that little or no polyhydric alcohol is deposited other than in the skin, there are employed short treatment times, relatively low dipping temperatures and dipping solutions with high polyhydric alcohol concentrations. Hot air drying, or vacuum- or freezedrying may be utilised. According to one typical example, blanched frozen peas were defrosted, perforated by the process described in Specification 783,974, and dipped for two minutes in an approximately equal weight of an aqueous solution containing 1.5% sodium carbonate and 0.5% sodium bysulphite. The peas were then dipped for 15 seconds in about an equal weight of 60% aqueous sucrose solution at room temperature and were drained for 5 minutes to remove excess liquid before drying. They were then dehydrated in a hot air drier for 2¢ hours at 65‹C. followed by 20 hours at 49‹C., to give a product which contained 7.5% moisture and had taken up about 15% of sucrose, based on the dry weight of the peas. The dehydrated peas exhibited little shrivelling of the skins and were readily reconstituted by cooking in boiling water containing salt.
Patent GB-1534589-A (GB)
Title: Starter drive for an internal combustion engine
IPC: F02N15/02
Filed: 1976-07-01
Abstract: 1534589 Starter drive FACET ENTERPRISES Inc 1 July 1976 [1 July 1975] 27423/76 Heading F1K A starter drive 1 adapted for use with an internal combustion engine and having a starting motor (not shown) drivably connected thereto includes a driving unit 19 drivably connected to the starting motor, the driving unit further including a cylindrical driving member 20 coaxially disposed with the engine crank-shaft 5 and having a helical spline 37 on an inner portion thereof, a driving clutch element 31 disposed within the cylindrical driving member for rotation therewith, the driving clutch element 31 having a helical spline 35 on its external surface and driving means for driving the driving clutch element 31 interposed between the cylindrical driving member 20 and the driving clutch element. The driving means includes a ring member 33 with a helical spline on the outside thereof, the helical spline being adapted to engage with the helical spline 37 on the inner portion of the cylindrical driving member 20, and the ring member further having a helical spline on the inside thereof, the helical spline being adapted to engage with the helical spline 35 on the external surface of the driving clutch element 31 whereby when a torque is applied to the cylindrical driving member 20 the ring member is moved towards a driven member 11. The drive also includes a clutch 31, 27, 40 between the driving unit and the driven member 11 and means for disengaging the clutch when the engine runs above a predetermined speed for disconnecting the driving unit 19 from the driven member 11 and for engaging the clutch when the engine runs below the predetermined speed for drivably connecting the driving unit 19 to the driven member 11. As shown the means for disengaging the clutch includes weights 47. The drive includes cushioning means 41 for absorbing starting torque, to avoid shock loads when the starting motor is first energized.