baber/WOPTO huggingface dataset:
Patent GB-897652-A (GB)
Title: Improvements in or relating to electrical code translators
Inventor: LOUGHHEAD WILLIAM ALBERT EDWAR
IPC: H04Q3/42
Filed: 1960-02-17
Abstract: 897,652. Translators. ERICSSON TELEPHONES Ltd. Dec. 15, 1960 [Feb. 17, 1960; Aug. 18, 1960], Nos. 5563/60 and 28594/60. Class 40 (4). An exchange code translator comprises horizontal groups of cores 10 ... 12, 13 ... 15, 16 ... 18 threaded by wires 37 pulsed from a terminal 100 indicative of the exchange code, each core being provided with a switch 40, the switches of a group being enabled as required by pulses applied to leads 34, 35, 36 in synchronism with the pulses applied to the terminal 100, the outputs from switches in vertical columns being commoned. Each row may indicate the translation digit required and each column the value of the translation digit. Thus the wire connected to the terminal 100 may indicate a translation 121. The first translation digit is obtained by pulsing terminal 100 and lead 34 in synchronism to produce a " 1 " output from transformer 70. The second digit is obtained by pulsing terminal 100 and lead 35 to produce a " 2 " output from transformer 71 and so on. The transistor switch 40 is shown as being enabled over its base electrode and pulsed from the core over its emitter electrode, but may instead have those connections reversed, Fig. 4 (not shown). The translation digits may be required in coded form (e.g. on 2 out of 5 leads) in which case arrangements may be made to pulse combinations of rows of cores for this purpose. As described the cores are used simply as transformers, but square loop material can be used if a reset winding is provided.
Patent GB-658243-A (GB)
Title: Improvements in or relating to lubricating compositions and additives therefor
Inventor: HELMORE WILLIAM
IPC: C10M135/10
Filed: 1947-02-27
Abstract: Chromium and tin petroleum sulphonates for use in lubricants (see Group III) are prepared by reacting alkali or alkaline earth petroleum sulphonates or the free acids with salts of chromium or tin such as chrome alum or stannous chloride.  Mixed salts of chromium and tin are similarly prepared.  In an example, an alcoholic solution of calcium petroleum sulphonate is agitated with equivalent molecular proportions of stannous chloride or chrome alum, the precipitated calcium sulphate filtered off, and the alcohol evaporated.  The tin or chromium petroleum sulphonates are viscous liquids or solids.  In other examples, sodium petroleum sulphonate is heated with chrome alum and water at 100 DEG  C. and the mixture extracted with benzene. A compound containing 10 to 15 per cent chromium petroleum sulphonate, about 40 per cent sodium petroleum, sulphonate, and 45 to 50 per cent mineral oil is obtained.ALSO:A lubricating composition for use at high temperatures in internal combustion engines comprises a lubricating oil base containing minor proportions of organic compounds of both chromium and tin, at least one being a petroleum sulphonate.  A small proportion of alkali and/or alkaline earth petroleum sulphonates, chromium or tin oleates, naphthenates, and substituted phenolates, tin tetraphenyl, aromatic thio ethers and aromatic hydroxy substituted di- or poly-sulphides having carboxy or ester substituents (see Specifications 455,235 and 561,898), phosphite or thiophosphite esters (see Specification 574,445), tricresyl phosphate, tributyl phosphite, and mercaptobenzthiazole may also be present.  The proportions in which the ingredients are added are from 0.01 to 2.0 per cent, for example, about 1.0 per cent, by weight of the petroleum sulphonates of chromium and tin and less than an equal quantity of sodium and/or calcium petroleum sulphonate, together with from 0.1 to 1.0 per cent of other lubricant additive. When chromium and tin petroleum sulphonates are both present they are preferably in the relative proportions of 1 to 4.  Up to 4 times their weight of tin or chromium oleate, naphthenate, or substituted phenolate may also be added.  The chromium and tin compounds are prepared by reacting alkali or alkaline earth petroleum sulphonates with salts of chromium or of tin such as chrome alum or stannous chloride (see Group IV (b)), or these compounds can be prepared in admixture together with the desired proportion of sodium petroleum sulphonate by heating an aqueous solution of sodium petroleum sulphonate with chrome alum, chromium sulphate, or chromium chloride and with stannous chloride for 18 hours, extracting with benzene and evaporating the benzene off.  Specifications 398,222, 423,441, 431,066, 544,914 and 555,234 also are referred to.
Patent GB-717057-A (GB)
Title: Improvements in cathode ray tubes
IPC: H01J29/18
Filed: 1952-03-05
Abstract: 717,057. Cathode-ray tubes. ABBEY, A. (American Optical Co.), March 5, 1952, No. 5765/52. Drawings to Specification. Class 39(1) A cathode-ray tube having a fluorescent screen disposed adjacent the inner side of the tube face, has a non-absorbent transparent film on the outer surface of the tube face which is designed to reduce reflection of light rays emitted by the fluorescent screen and striking the outer surface of the tube face at angles less than the critical angle in the absence of the film. The amount of light transmitted through the tube face is increased and halation effects are reduced. The film has an optical thickness which is an odd multiple of a quarter wave length of incident light and a refractive index which is lower than that of the material of the tube face. The optical thickness may be in the vicinity of a quarter wave length and the refractive index may approach the square root of that of the material of the tube face or vary from a value of approximately one at the air interface to a value approaching that of the material of the tube face. A similar film may be provided between the fluorescent screen and the tube face. The film may comprise discrete, microgranular solid particles forming minute irregularities on the outer surface of the tube face. The film may be formed by the evaporation of calcium or other fluorides on to a glass surface or by wetting the glass with silicic acid and treating with hydrochloric acid to precipitate the silicon dioxide. Another type of film is made as a film of barium stearate which is produced by dipping the glass in water containing barium salts and having a layer of stearic acid on top; others are films of magnesium fluoride, calcium fluoride, sodium fuoride or sodium aluminium fluoride. Other films are decompositions of salts. One film may be formed of a composition consisting of a colloidal suspension containing discrete microgranular solid particles of anhydrous magnesium fluoride, lithium fluoride, strontium fluoride, calcium fluoride, barium fluoride or cryolite dispersed in a volatile liquid. This composition is then applied to a glass surface and subjected to heat to evaporate the liquid and to leave a dry coating on the surface. To avoid halation effects at the edges of the fluorescent screen due to fluorescent material being deposited on the side walls of the tube adjacent their junction with the tube face, a ring member may be inserted in the tube for limiting the image area, In addition, the outer edge of the tube face may be highly polished or coated with light-absorbing material such as a suspension of graphite particles in oil or cement such as Canada balsam, or black lacquer.
Patent GB-115082-A (GB)
Title: Improvements relating to Dyeing Machines, Washing Off Machines and the like.
Inventor: FARRAR JOSEPH
IPC: D06B5/20
Filed: 1917-04-25
Abstract: 115,082. Farrar, J., and Whitehead, A. R. April 25, 1917. Circulating or passing fluids through materials. -Relates to hank-dyeing machines, washing-off machines, &c. of the kind in which the dye or other liquor is caused to circulate from a circulating chamber under or over a division board and through spaces between circulating-boards into a vat in which the material is placed, and consists chiefly in means for removing the sediment which collects in the material during the dyeing operation. After the dyeing operation, fresh water is supplied to the vat A, Fig. 1, through apertures in a transverse pipe d, which is disposed slightly above the level of the circulating-boards b at the end of the vat remote from the circulating-chamber B; the prcpellers or other circulating-device being in action, any sediment that rises to the surface is drawn off with the overflow by pipes E passing through the outer wall of the circufating- chamber adjacent the top of the division board a. In place of the pipes E, a transverse trough or a pipe having a slit along its upper surface may be employed, disposed in the chamber B. The lid C or the vat, Fig. 5, from which the hank frame F is suspended, also carries spraying-pipes G,'which are connected by a flexible pipe to a water supply, so that the hanks may be sprayed with fresh water, either in the vat or after they have been lifted clear.
Patent GB-575659-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1944-03-29
Abstract: 575,659. Spray carburetters. PEACH, R. L. S. STEVENSON-, and WHITE, L. A. March 29, 1944, No. 5830. [Class 7 (iii)] In a carburetter in which a float-actuated valve adjusts the inflow of pressure-fed fuel to the float chamber to equal the outflow to the air-intake-into which the float chamber vents, the fuel conduit 33 to the float chamber is opened or closed by a second valve 34 actuated by a device responsive to the pressure difference between the float chamber and the air intake and adapted to close the valve when the former pressure exceeds the latter, and a third valve 21 is actuated by the fuel to close the vent 20 from the float chamber to the air intake, when fuel flows past it, when the total field of accelerations is negative and/or when the float chamber pressure exceeds by a predetermined amount the pressure in the air intake. Fuel under pressure enters a compartment 25 of a control device 24 and flows thence via the valve 34, passage 33 and inlet valve 14 into the chamber 10 containing the float 11 actuating the valve 14. The fuel leaves the chamber by a standpipe 18, well 19 and passage (not shown). A rigid partition 28 having an opening covered by a diaphragm 30 or a piston separates the compartment 25 from a compartment 26 open to the fuel well 19 and itself separated by a diaphragm 29 from a compartment 27 communicating with the air intake by a passage 38. The diaphragm 29 is connected to the small diaphragm 30 and valve 34. Normally a spring 36 in the chamber 27 displaces the diaphragm 29 to maintain open the valve 34 against the pressure of its spring 35. When a negative " acceleration field " closes the venting valve 21, pressure builds up in the float chamber 10 and compartment 26 to a point where the dia- .phragm 29 is displaced by it to close the valve 34. The diaphragm 30 is dimensioned to neutralise the pressures of the springs 35, 36 during this displacement. Preferably a bleed provides for a small flow of fuel past the valve 34 or through the diaphragm 30.
Patent GB-1421983-A (GB)
Title: Light exposure apparatus for formation of striped phosphor screens of colour picture tubes
IPC: H01J9/227
Filed: 1973-02-06
Abstract: 1421983 Luminescent screens HITACHI Ltd 6 Feb 1973 [7 Feb 1972] 5864/73 Heading H1D Light exposure apparatus for formation of a striped colour c.r.t. phosphor screen comprises a slot mask, a light source assembly for projecting exposure light through a correction lens and the slot-mask apertures, the assembly including a collimator means with a leading portion 18 arranged to act as a linear light source parallel to the bridged aperture slits (Fig. 2, not shown). Two or more slender leading portions (18a, 18b) may be provided (Fig. 7a, not shown), which may be aligned point sources (Figs. 8a, 8b, not shown). Fig. 1 (not shown) includes a h.v. Hg arc lamp, reflector (7), and collimator 8. The phosphor material may be applied for each colour by the slurry method for example. Dimensions are given for the colour selecting electrode and collimator.
Patent GB-588883-A (GB)
Title: Improvements in drying apparatus
IPC: F26B21/04
Filed: 1946-03-09
Abstract: 588,883. Drying apparatus. SHUFFLEBOTTOM, G. W. March 9, 1946, No. 5866/45. [Class 34 (ii)] Apparatus for drying pottery &c., in moulds d comprises a lagged chamber a locating an axial hot air inlet pipe b and a pair of peripheral air outlet pipes c<3>. A number of hollow annular shelves b' are mounted on the pipe b, in communication therewith, and are provided with aligned upper and lower holes b<2>, and apertures c<4> are also provided in the pipes c<3> and, if desired, in the pipe b at positions between the said shelves. In operation, moulds are placed upon the shelves above the holes b<2> thereof and below the corresponding holes in the-shelf above, whereupon air is circulated by a fan (not shown) successively through an electric heater, a conduit c<2> pipe b, shelves b' and chamber a, and thence to the pipes c<3> back to the fan or to a separate outlet in said chamber; simultaneously the pipe b is slowly rotated by a central shaft b'.
Patent GB-159815-A (GB)
Title: Process of crystallization and apparatus therefor
IPC: B01D9/00
Filed: 1921-02-21
Abstract: 159,815. Soc. GÚnÚrale d'Evaporation ProcÚdÚs Prache et Bouillon. March 5, 1920, [Convention date]. Separate heater and evaporator apparatus.-In evaporating liquids such as salt, electrolytic soda, or sodium sulphate solutions, the formation of crystals on the heating-surfaces is prevented by circulating liquid containing suspended crystals which exert a mechanical cleaning-action. The apparatus comprises an open or closed vessel 1 with a conical base 2 from which crystals may be discharged, connected by pipes 7, 8, with a tubular heater 4, through which liquid containing suspended crystals is circulated by a propeller 10. Specifications 112,943, 132,787, and 137,052 are. referred to.
Patent GB-977426-A (GB)
Title: Preparation of polyesters
IPC: C08G63/78
Filed: 1962-02-15
Abstract: Polyethylene terephthalate is made by (1) forming a slurry of terephthalic acid in an at least equal weight of ethylene glycol by feeding the ethylene glycol into a zone containing the terephthalic acid, the ethylene glycol, immediately before it enters the zone being at a temperature above its boiling point under the pressure in the zone, and (2) subjecting the slurry to esterification and polycondensation conditions.  The ethylene glycol, prior to entering the zone, is preferably in vapour form but may also be liquid.  The zone is preferably pressurized with an inert gas.  The reacting mixture may also include (a) further ester-forming components, e.g. isophthalic, adipic or sebacic acids, diethylene glycol, polyoxyethylene glycols, ethanolamine or dimethyl sodium 5-sulphoisophthalate; (b) pigments, e.g. titanium dioxide, carbon black, phthalocyanine or indanthrene pigments; (c) catalysts, e.g. compounds of Zn, Cd, Pb, Sb, Mn, Co, Fe, Ti, Zr, La, the alkali metals or the alkaline earth metals (such as sodium hydroxide or antimony oxide), possibly in admixture with phosphoric acid. Reference has been directed by the Comptroller to Specification 777,628
Patent GB-288009-A (GB)
Title: Improvements in or relating to the testing by falling weight of axles, tyres and other metal articles
IPC: G01N3/48
Filed: 1927-03-03
Abstract: 288,009. Brown, W. E. March 3, 1927. Testing hardness of materials. -In apparatus of the impact type for testing axles, wheel tyres, &c. the falling weight is made in two parts one of which is grooved to engage the guide rails and the other is adapted after impact to cause members carried by the weight to engage the rails and arrest movement of the weight during the first rebound to prevent successive blows on the object. As shown in Figs. 2 and 3, the weight is formed of two parts 3, and 7; the part 3 is grooved at 8 to engage the guide rails of the framework and the part 7 is wedge shaped and engages members 9 loosely mounted on a square supporting bolt 10 carrying the suspending eye 11. In use, when the weight strikes the object, the rebound thereof produces a wedging action between the part 7 and the members 9 to cause the members to press against the guide rails and maintain the weight suspended.
Patent GB-1186497-A (GB)
Title: Player Piano Key Actuating Assembly
Inventor: CANNON RICHARD LAURENCE
IPC: G10F3/00
Filed: 1969-02-04
Abstract: 1,186,497. Players for keyboard instruments. DALE ELECTRONICS Inc. 4 Feb., 1969, No. 5961/69. Heading G5J. A player-piano comprises two rows of solenoids, positioned either above or below a keyboard, having plungers 12 which operate the keys when the solenoids are energized. Each solenoid comprises a coil 35 insulated by a thin insulative tube 30 from an inner metal tube 24 containing a plunger 12, preferably of steel, into one end of which is pressed a push-rod 16 preferably of steel having a cushioning felt pad 22 on its end 20. Movement of plunger 12 is limited and cushioned by a rubber element 82, and, when the solenoids are placed beneath a keyboard, by a felt sheet 92 on a board 90 adjustably secured to channels 50, 50A. If the solenoids are placed above a keyboard, felt sheet 92 is replaced by biasing springs secured to each plunger 12 at a groove 14. The solenoids are mounted in two pairs of channels 50, 50A by an abutting insulating washer 32 clipped into a groove 34 at one end of tube 30, and also an adapter 40 pressed into the other end of tube 30 and clamped to a pair of channels by a nut 42. Adapter 40 has shoulders abutting the edges of the channels to prevent rotation of the solenoid. The channels act as magnetic paths and heat sinks, and the pairs of channels are joined via an insulating board 70. In an alternative arrangement (Fig. 3, not shown) two pairs of channels (100, 102) are arranged one vertically beneath the other, and are secured together at one side by a board (120). At the other side, terminal boards 122 are provided. The lower solenoids (116) have long push-rods (118) which extend upwardly between the upper pair of channels with their ends (108) level with the ends of the rods (106) of the upper solenoids. Movement of each rod is limited by an adjustably positioned collar (112) on the rod which abuts a felt collar (114) on top of the adapter (36).
Patent GB-494835-A (GB)
Title: Improvements in or relating to the transmission and reception of electromagnetic waves
IPC: H01Q19/12
Filed: 1937-03-01
Abstract: 494,835. Wireless signalling. BORMANN, O. March 1, 1937, No. 6082. Convention date, March 25, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 7, 1937.] [Class 40 (v)] A separate generator and detector, both enclosed by metal screening, are connected through a dielectric guide to a common shortwave aerial of the beam-forming type. The arrangement is used for the transmission and reception of centimetre waves, either on the same wavelength or on different but adjacent wavelengths. In the former case, a generator and a separate detector valve are brought alternately into circuit ; whilst in the second case, the two wavelengths are prevented from interfering with each other by using a resonant guide or transmission-line of the kind described in Specification 440,238. The coupling arrangements are of the kind described in Specification 493,695, [Group XX]. As shown in Fig. 2, a rod 108 projects into a parabolic reflector 107, and is coupled alternately to " resonator valves 111, 111<1>, which are of the Barkhausen-Kurz type and act either to generate outgoing waves, or to rectify incoming ones according to the potentials applied to their electrodes. The construction of the valves is described in Specifications 449,920, 452,490, and 460,700. In Fig. 4, either a generating valve 121 or a detector valve 1211 is projected into the transmission line 123, 124, at will, by operating a movable supporting bracket 127. Or the change-over from transmission to reception may be made by screening one or other of the two valves, Fig. 5 (not shown). Fig. 3 shows an alternative arrangement in which the two valves 105, 106 are coupled in parallel to the same aerial 117 through feed-lines 119, 119<1> of the kind described in Specification 440,238. These act as filters to decouple the two valves when working on adjacent wavelengths. The end of the tubular feed-line may itself serve as the aerial, or a reflecting surface may be fitted in its interior. The two valves 121, 121<1>, Fig. 8b, may be located on the focal lines of an elliptical cylinder 140. The feed-line may be made telescopic, and fitted with curved end-pieces to project over obstacles of different heights, Fig. 10 (not shown). According to the Specification as open to inspection under Sect. 91, the receiving and transmitting valves may both be mounted to project through a common opening made say in a thick wall of masonry. This subjectmatter does not appear in the Specification as accepted.
Patent GB-384494-A (GB)
Title: Improvements in anti-slipping horse shoes
IPC: A01L7/06
Filed: 1932-03-01
Abstract: 384,494. Horseshoes. CLEARY, J., Templeshannon, Enniscorthy, Co. Wexford, Irish Free State. March 1, 1932, No. 6154. [Class 67.] Renewable calks 8 are held in separate holding members 3 which are riveted to the ends of a shortened shoe 2.
Patent GB-1046721-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: STERLING HENLEY FRANK
IPC: H01L29/06
Filed: 1963-02-15
Abstract: 1,046,721. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Feb. 13, 1964 [Feb. 15, 1963], No.6258/63. Heading H1K. A P-N junction semiconductor device includes a body 1 of semiconductor material of one conductivity type having a layer 2 of semiconductor material of opposite conductivity type immersed in the body so that part of the body material surrounds and inwardly overlaps the layer material to expose a surface of the layer, the thickness of the overlapping portions of the body material being less than the spread of a space charge region set up by application to the junction of a reverse bias voltage such as to cause avalanche breakdown within the body material. The body material has a high resistivity compared with the layer material. The device may be made by depositing epitaxially a P-type silicon layer on a slice of N-type silicon, removing part of the layer by etching or air abrasion to leave an area corresponding in size to the required layer 2, and depositing a layer of N-type silicon on the slice to cover the P-type layer. Phosphorus pentoxide is then deposited on the lower face of the slice and heat is applied to diffuse the phosphorus pentoxide into the silicon to form a low-resistivity contact area 4 and to diffuse the P-type material into the surrounding N-type material to form the junction 3. The overlying N-type material is then excavated by etching or air abrasion to expose the layer 2.