baber/WOPTO huggingface dataset:
Patent GB-1196893-A (GB)
Title: Production of Spherical-Particle Powders of Metals
IPC: B22F9/00
Filed: 1969-01-10
Abstract: 1,196,893. Making metal powders. MITSUBISHI KINZOKU KOGYO K. K. Jan. 10, 1969 [Jan. 10, 1968], No. 1633/69. Heading C7X. Producing metal powders with spherical particles, which may be used in powder metallurgy for making oil-occluding bearings, filters or oil burner wicks, in flame spraying or as catalysts, by contacting a melt of the metal with a substance which gives off hydrogen when it is thermally decomposed (e.g. ammonia, methanol, formaldehyde, urea, methanol amines, ethylene glycol or glycerine), the melt being at a temperature above the decomposition temperature of the substance, whereby there is a transitional formation of the metal hydride which decomposes to give the spherical metal particles which are recovered from suspension in the reaction gases. The reactive gas may be diluted with Ar, H 2  or N 2 . Care must be taken that the reactive gas does not decompose prior to contacting the melt surface.
Patent GB-957315-A (GB)
Title: Storage racks and similar assemblies
Inventor: THOMPSON GEORGE
IPC: A47B57/34
Filed: 1961-01-14
Abstract: 957,315. Shelves. THOMPSON & CO. (GREAT HORTON) Ltd. March 12, 1962 [Jan. 14, 1961], No. 1648/61. Heading A4B. A rack or shelf assembly has spaced pairs of vertical rails 1 and horizontal rectangular shelves 3 locked together by transverse metal laths 4 projecting from beneath the shelves and meshing in the spaces formed between the rails and the legs of cranked metal brackets 5 detachably housed in horizontal saw-cuts 2 in the inner faces of said rails. The shelves 3 have rebated corners to engage the rails 1, and may have a frame 3A covered with plywood or hardboard. The brackets 5 are rebated at 5A to give correct location on the rails, while brackets 6 support the outer ends of outer shelves. The whole assembly may be dismantled for storage. Contiguous rails may be joined by brackets 5.
Patent GB-276877-A (GB)
Title: Improvements in the treatment of cellulosic materials
IPC: D06M15/05
Filed: 1927-01-21
Abstract: 276,877. Potts, H. E., (Arnold Print Works). Jan. 21, 1927. Yarns, treating with liquids; fibres, treating.- Cellulosic materials such as artificial silk, jute, linen, ramie, wood, cotton, &c. in the form of fabrics, yams, or fibrous stock are treated with a caustic alkali and thereafter the materials con. taining the alkali are subjected to the superficial action of cuprammonium solution. The treatment imparts to the materials previously mercerized or not, a resemblance to linen and increased hardness, smoothness, stiffness, and lustre, with removal of fuzz. Light fabrics are rendered more transparent. After treatment with the cuprammonium solution, the material may be stretched and is then treated with dilute sulphuric acid and washed. Pattern effects may be produced by applying the cuprammonium solution by spraying, printing, stencilling, or by means of resists.
Patent GB-812306-A (GB)
Title: Improvements in or relating to the manufacture of balls for ball bearings
IPC: B24B11/02
Filed: 1957-01-17
Abstract: 812,306. Grinding balls. HUTTON, H. W. Feb. 18, 1958 [Jan. 17, 1957], No. 1802/57. Class 60. A method of grinding steel balls in a differential grinding apparatus comprises applying to the balls, during grinding, a liquid maintained at all times at a temperature of or above 80‹F. The balls are ground between annular surfaces which rotate at different speeds to provide the differential grinding effect. The liquid, which may be a mineral oil or an aqueous dispersion of an emulsifying or wetting agent, is supplied by a pump to the apparatus from a storage tank having electric or other means for heating the liquid. Thermostatic control maybe employed to maintain the liquid at a uniform temperature. The liquid after use, may be collected in a tray or trough and returned by gravity to the storage tank. Spent abrasive and the like may be removed from the liquid by allowing it to settle in a separate compartment or by passing the liquid over a series of weirs.
Patent GB-271365-A (GB)
Title: Fabric measuring machine
IPC: G01B5/04
Filed: 1927-01-21
Abstract: 271,365. Vanderveld, A. Jan, 21, 1927. Measuring.-The fractions-of-a-unit dial 15 of a machine for measuring long lengths of fabric is mounted on a horizontal shaft driven by gearing 9, 10, 12 from the cloth roller 7, and the units dial 36 is mounted on a vertical shaft Immediately over the measuring roller 7 and is moved step by step at each revolution of the dial 15 by a one. toothed pinion 19 and a crown wheel 35. The dial 36 is carried by a horizontal plate 20 pivoted to one side of the machine and at the other side pulled by a spring 26 which normally keeps the crown wheel 35 in engagement with the pinion 19 and the crown-wheel drum 34 against the spring friction grip 42. At the limit of operation of the machine the tail 52 of a lever 51 enters a rotch in the circular rib 54 beneath the dial 36 and the other end of the lever then falls into a notch in the end of the cloth roller 7 and locks it. Zeroizing mechanism. The dial 15 is returned to zero by turning the knob 46 and the spindle 11, and the dial 36 by the coiled spring 37 when the plate 20 is moved by depressing the knob 46 to take the drum 34 out of contact with the brake 42. A spring buffer 39 for the drum 34 is provided. The knob 46 can be depressed only when the dial 15 stands at zero and the presser roller 56 has been lowered to free the fabric. To ensure this, a vertically sliding bar 70 pivoted at 72 to an arm 67 which is pivoted to the frame at 69 can only fall to bring its notch 73 in front of the part 28 of the plate 20 when the end 68 of the arm 67 falls into a notch 17 in a disc 16 on the shaft of the dial 15 which can happen only when the dial reads zero, and when a pin 79 carried bv an extension 77 of the cam 64 for lowering the presser roller 56 is moved into the position shown in Fig. 8 when the roller 56; is lowered.
Patent GB-723330-A (GB)
Title: Improvements in and relating to the decolorisation of sulphonic acid esters
Inventor: CRAWFORD JOHN WILLIAM CROOM
IPC: C07C309/63
Filed: 1952-01-23
Abstract: Vinyl chloride polymers are plasticized by means of esters of sulphonic acids having plasticizing properties and obtained by reacting the sulpho-chlorination products of kerosene, boiling range 160 DEG  to 280 DEG  C., and Diesel oil, boiling range 245 DEG  to 345 DEG  C. with hydroxy compounds, e.g. phenol, cresylic acid or nonanol, the esters being decolorized by treating them at elevated temperatures with a dienophilic compound of specified type and then removing the reaction products together with any unreacted dienophilic compound from the purified ester by treating with aqueous caustic alkali solution (see Group IV (b)).ALSO:Esters of sulphonic acids obtained by reacting the sulpho chlorination products of kerosene, boiling range 160 DEG  C. to 280 DEG  C., and diesel oil, boiling range 245 DEG  to 345 DEG  C. with hydroxy compounds, are decolorized by treating the esters at elevated temperatures with a dienophilic compound and then removing the reaction products together with any unreacted dienophilic compound by treatment with aqueous caustic alkali solution, the dienophilic compound being an acid having the formula X1X2C = CX3X4, or an anhydride thereof, where X1 is a hydrogen atom or an alkyl group; X2 is a hydrogen atom, an alkyl group or a -CO.OH group; X3 is a -CO.OH group; and X4 is a hydrogen atom or an alkyl group when X2 is a carboxylic group or if X2 is hydrogen or alkyl, is a -CX5X6 COOH group where X5 and X6 are each either a hydrogen atom or an alkyl group. Specified dienophilic compounds are maleic anhydride, fumaric acid, citraconic anhydride and itaconic acid.  The esters are generally heated with 1 to 5 per cent by weight of the dienophilic compound at 100-160 DEG  C. for 2-24 hours.  Removal of the reaction products and unreacted dienophilic compound may be effected with dilute aqueous caustic alkali and separating the resulting two layers or with highly concentrated alkali and filtering off the solid product, often removal of water by calcium chloride, alumina, sodium sulphate or other dehydrant.  The esters may be further decolorized by charcoal treatment.  Examples describe the decolorization as above of esters obtained by reacting a kerosene with sulphur dioxide and chlorine in the presence of ultra-violet light and reacting the resultant product with cresylic acid in presence of ammonia.  In place of cresylic acid, phenol or nonanol may be used.  The ammonia may be replaced by caustic soda.  Such esters may be used as plasticizers for polyvinyl polymers.
Patent GB-1383250-A (GB)
Title: Apparatus for controlling the electric power transmitted by a group of n phase conductors
IPC: H02M1/08
Filed: 1972-01-14
Abstract: 1383250 Controlling AC power supplies SOC ANON FRANCAISE DU FERODO 14 Jan 1972 [15 Jan 1971] 1959/72 Heading H2H Apparatus for controlling the alternating current supplied to a load 10 by a group of N (where N > 2) phase conductors 13a, 13b, 13c comprises a respective thyristor 16a, 16b, 16c in each conductor, synchronizing circuits 18 for generating a synchronizing pulse at the zero crossings of the supply voltage of each conductor, a switching circuit for producing from the synchronizing pulses N successive sequences of thyristor firing pulses which render the corresponding thyristors conductive for full halfcycles of the alternating current, each sequence consisting of a + Nb firing pulses (where a is a positive whole number and b is zero or a positive whole number) and a phase selector 55 which causes the first firing pulse of each sequence to be supplied to a different one of the thyristors. The power supplied to the load is determined by the setting of a variable D.C. source 27 connected to a voltage-to-frequency converter 28 which supplies pulses to an up/down counter 30. On a low setting for the power to be supplied to the load, when the counter reaches a count of one it supplies an output on a conductor 32 which causes a monostable circuit 24 to supply a 10 millisecond enabling pulse to gates 20a- 20c of the switching circuit. The monostable output also decreases by one the count in the counter 30. The first and second synchronizing pulses from the circuits 18 are therefore fed through the gates to fire the corresponding thyristors but the third, fourth and fifth pulses are blocked due to the removal of the mono. stable circuit output. The synchronizing pulses passing through the gates are also supplied to the input 56a, 56b or 56c of the phase selector which sequentially energizes its outputs 57b, 57c or 57a so that the sixth synchronizing pulse passes through the enabled one of the AND gates 53a, 53b, 53c to re-excite the monostable circuit 24. A further two firing pulses are therefore supplied to the thyristors and the system enables sequences of two firing pulses to be supplied, i.e. a = 2, b = 0. For higher power settings the counter provides an output on conductor 33 when the count equals or exceeds three thereby causing a 35 millisecond monostable circuit 43 to excite the monostable circuit 24 for three successive 10 millisecond pulses. Eight consecutive conductive half-cycles of the thyristors are therefore produced, i.e. a = 2, b = 2, in each sequence. Diodes 15 may be replaced by thyristors or controlled valves.
Patent GB-538522-A (GB)
Title: Oral therapeutic and prophylactic
IPC: A61K8/73
Filed: 1940-02-01
Abstract: 538,522. Medicinal salves. BOX, W. M. Feb. 1, 1940, No. 1975. Convention date, Aug. 8, 1939. [Class 81 (i)] An oral therapeutic preparation of salve-like nature comprises a normally solid mineral oil, e.g. petrolatum and a powdered water insoluble oxygen evolving substance, e.g. magnesium peroxide, the composition being prepared by heating the oily vehicle above its melting point for at least 1 hour, heating the oxygen evolving substance and other ingredients in finely powdered form for at least 5 hours at about 150‹ F. and mixing the powdered constituents with the vehicle at 150‹ F. Gum karaya and tricalcium phosphate may be added to the oxygen evolving substance.
Patent GB-346476-A (GB)
Title: Improvements in or relating to pneumatic wheels for vehicles
IPC: B60B9/20
Filed: 1930-01-20
Abstract: 346,476. Pneumatic wheels. CONIGRAVE, M. R., 153, Richmond Street, Leederville, near Perth, Australia. Jan. 20, 1930, No. 1979. [Class 144 (i).] Spring wheels.-In a wheel in which the pneumatic chamber is formed by a flexible tyre 24 and a pair of discs 10, 11, rubber &c. packing rings 16 are fitted between the discs and the hub flange 12, similar rings 20, 21 being fitted be. tween the tyre edges 22 and distance-pieces 19 and the discs, respectively. The hut bolts 14 are fitted with collar: 12a recessed into the flange 12 so that the outer disc 10 may be detached without demount ing the other parts of the wheel.
Patent GB-364358-A (GB)
Title: Improvements relating to automatic traffic signals
IPC: G08G1/097
Filed: 1931-01-21
Abstract: 364,358. Road signals. CHANCE BROS. & CO., Ltd. and SPAINK, J. H. ABBINK-, Lighthouse Works, West Smethwick, Staffordshire. Jan. 21, 1931, Nos. 2004 and 2005. [Class 118 (ii).] An amber coloured or other warning light is brought into action at some predet rmined time such as in the night or when a failure occurs in he main signal system to show that the signal is not working. The current is supplied to the signal system by leads a, b from terminals d, e to which are adjacent fuses f, g. Conductors h supply current to the various parts of the signal apparatus. The warning lights i are in a circuit i containing fuses k, l and connected to the terminals d, e or between these and the fuses f, g. The circuit contains a switch m normally held open by an electromagnet n connected across the main. leads on the signal system side of the fuses f, g. On one of the fuses f, g blowing the elec romagnet n is no longer excited and the lamps i come on. In addition or alternatively the leads a, bare provided with switches o, p or with one only. On the terminal side of the fuses f, g is a circuit containing an electromagnet r and a contact device s controlled by a clock which opens and closes the contact s at certain times. A switch t in parallel with the switch m is actuated by the electromagnet r. When the contact s is closed, the electromagnet r opens the switches o, p putting the signals out of action and closes the switch t to bring the warning light i'into action. On opening the contact device s, the switches o, p are closed and the switch t opened.
Patent GB-376659-A (GB)
Title: Improvements in depolarising electrodes for electric batteries
IPC: H01M12/06
Filed: 1932-01-22
Abstract: 376,659. Galvanic batteries. SOC. ANON. LE CARBONE, 37, Rue de Paris, Gennevilliers, Seine, France. Jan. 22, 1932, No. 2080. Convention date, Dec. 14, 1931. Application for Addition. [Class 53.] Air has access to a hollow carbon electrode 4 by means of a tube 13 which is outside the electrode and leads into 'the lower part of the cavity through the bottom of the electrode or through one of the side walls. An exit tube 12 is provided.
Patent GB-212366-A (GB)
Title: Improvements in means for filtering and distributing acetylene gas
IPC: C07C7/00
Filed: 1923-01-25
Abstract: 212,366. Baird, N. Jan. 25, 1923. No Patent granted (Sealing fee not paid). Purifying acctylene.-The filter is independent of the lamp or generator but may be attached thereto. It comprises a cylindrical chamber a fitted with an inlet pipe or pipes c shaped to receive the ordinary rubber piping, and provided with a screwed-on cap e which closes the chamber and carries the outlet connections l which may be arranged as shown, or may project radially from the cap. The chamber is charged with filtering-material which for convenience may be packed into a liner m. Reference has been directed by the Comptroller to Specifications 6099/08 and 12998/12.
Patent GB-317290-A (GB)
Title: Improvements in lock nuts for bolts, studs and the like
IPC: F16B39/286
Filed: 1929-01-23
Abstract: 317,290. Lavick, A. H., and Bailey, F. Jan. 23, 1929. Locking nuts.-A nut a has an extension a<1> separated therefrom bv a slot b and the extension has lugs f, f<2>, separated by a slot d but adapted to be clamped by a screw g.
Patent GB-524131-A (GB)
Title: Improvements relating to soap holders
IPC: A47K5/04
Filed: 1939-01-23
Abstract: 524,131. Holders for sticks of soap. STEINER, L., and BERGER, A. Jan. 23, 1939, No. 2317. [Class 18] A holder for a stick 9 of soap comprises a casing 1 provided with a spring 7 which presses the stick up against an abutment 5 at the open end of the casing. The abutment may be provided on an integral or removable lathering cup 4 which has a removable cover 6. A follower 8 is interposed between the spring and the bottom of the soap. The bottom of the casing may be removable and it is provided with an air inlet 3.
Patent GB-588943-A (GB)
Title: Improvements in or relating to devices for forming trueing, reshaping or reconditioning valve seats
IPC: B23C3/05
Filed: 1945-01-30
Abstract: 588,943. Portable turning-apparatus. HOLLINSHEAD, P. C. Jan. 30, 1945, No. 2320. [Class 83 (iii)] Cutters.-A device for reconditioning valve seats comprises a head portion coned at one end to correspond with the conicity of the valve seat for engagement therewith, a depending pilot stem integral with or separate from and keyed or otherwise secured to the head, and made to slide in the bore of the valve spindle bush, a socket or slot in the head opening endwise into said coned surface, a cutting tool with a single cutting edge projecting from said coned surface, means for adjusting said cutting tool and for securing it in the slot, and means for imparting a rotary motion to the device relatively to the work under an axially directed force. The stem 4 of the device is arranged to be a sliding fit in the valve guide 5 and carries a head portion 2 with a guide surface 9 complementary to the seating in the engine or other work to be reconditioned. This guide surface which is preferably hardened is gapped at one place to accommodate a cutting tool 3 with an edge 12 which is guided in an oblique slot 11 in the head and is adjusted by a screw 13 and clamped by a set-screw 16. A tommy bar 10 passing through the head is used to rotate the tool and apply axial force for cutting a seating. The pilot stem may be detachable so that stems of different sizes to suit different guides may be used with the same head, and the tommy bar may also be part of an extension where the seating to be cut is sunk below the level of other parts of a cylinder block or the like. The work may be rotated, such as in a lathe, and the tool held stationary during cutting.
Patent GB-470755-A (GB)
Title: Improvements in lighting accessories for photographic purposes and the like
IPC: G03B15/06
Filed: 1937-01-25
Abstract: 470,755. Lighting - apparatus for photographic &c. apparatus. COHEN, A. Jan. 25, 1937, No. 2374/36. [Classes 75 (ii), 75 (iii), and 75 (iv)] Lighting apparatus enabling the illumination of an object to be varied at will, particularly for use in photographic studios, comprises a lamp housing 1 and a plane reflector 22 mounted to be individually slidable along and rotatable about a single vertical or horizontal bar 18 and also to be rotated each about an axis perpendicular to the bar. The housing 1 may be cubic and contain a silvered glass parabolic reflector 8, the reflector 22 may have an opaque white surface for diffusing reflected light, and they may be mounted on a standard 18 of circular cross-section by means of spigots 15, 15<1> rotatable in sleeves 17, 17<1> which are locked in position by set-screws operated by hand wheels or knobs 21, 21<1>. The standard 18 may be carried by a base 19 with castors 20. A domed or other diffusing screen 24 made of frosted glass, tracing cloth, or other translucent material, may be mounted to slide along and rotate about the standard 18 so that it can be applied to the lamp housing to prevent the emission of direct light. The screen 24 may be carried by a square flanged frame 25 to bear upon an apertured member 10 of the lamp housing. The frame 25 carries screwed pins 26 with wing nuts 27, the pins projecting through a pair of complementary arcuate slots 28 in a disc member 29 fixed to a sleeve 30 which is locked in position by a set-screw operated by a hand wheel or knob 21". The member 29 has a vertically extending recess 31 which permits the screw 24 to be lowered into position until the sleeve 30 rests on the sleeve 17. By inserting both pins 26 in the same slot 28, the lamp housing 1 and the screen 24 can then be rotated together. Alternatively, a diffusing screen may be secured directly to the lamp housing. In addition, a pair of flaps or shutters 32 may be hinged at 33 to the end of the lamp housing, the flaps being extended and carrying pins 34 which project through members 36 having arcuate slots concentric with the hinges, the flaps being locked in position by wing nuts 35.
Patent GB-905426-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L31/00
Filed: 1959-01-22
Abstract: 905,426. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. Jan. 22, 1959 [Jan. 22, 1958], No. 2396/59. Class 37. A semi-conductor device consists of a body comprising a plurality of component transistors having a common collector region on one face, a separate emitter region for each transistor, and a common base region formed by a continuous stratum of one conductivity type, the base and emitter connections being disposed in juxtaposed alternating relationship on another face of the body. Fig. 1a shows a P-type silicon body 2 with an N-type collector layer 4 formed by alloying a gold-antimony foil 3 to the body, ohmic base aluminium electrodes 5 and goldantimony foils 6 forming emitter electrodes which contact N-type regions 7. The base and emitter electrodes may be in strips as shown, or in annular form, as in Fig. 1b (not shown). A cascade amplifier may be formed utilizing the common collector electrode 3 and connecting each emitter electrode 6 to the succeeding base electrode 5. Alternatively light may be directed on to a part of the collector junction, as shown in Fig. 2a, to provide carriers in the first base region, resulting in an amplified output appearing in the final stage. Germanium or A 3 B 5  material may be used in place of silicon.
Patent GB-1500212-A (GB)
Title: Air-conditioning
IPC: F25B29/00
Filed: 1975-01-20
Abstract: 1500212 Air conditioning rooms; heat pumps SVENSKA FLAKTFABRIKEN AB 20 Jan 1975 [21 Jan 1974] 2435/75 Headings F4V and F4H An installation for air conditioning a room comprises a duct 14 for supplying air to the room, a duct 11a for exhausting air from the room, a first heat pump and a second heat pump each comprising a closed refrigerant circuit having a compressor 1, a throttle member 8, and heat exchangers 3, 4, the heat exchanger 3 of the first heat pump being associated with the duct 11a, the heat exchanger 3 of the second heat pump being associated with a further duct 9a for supplying fresh air to that heat exchanger, and the heat exchanger 4 of both heat pumps being associated with the duct 14. In the form shown, the heat exchangers 3, 4 of the first heat pump serve as evaporator and condenser respectively, and the first heat pump is operated continuously to heat recirculated air 12a and fresh air 10a entering duct 14. The second heat pump, having heat exchangers 3, 4 serving as evaporator and condenser, is only operated when the outside air temperature is so low that the required room temperature cannot be maintained by the first heat pump alone. The second heat pump is reversible by means of a four-way valve 2 to defrost evaporator 3 without affecting operation of the first heat pump. In another embodiment (Fig. 4), the heat exchanger 4 of the second heat pump is arranged downstream of the condenser 4 of the first heat pump so that defrosting of heat exchanger 3 of the second heat pump is accelerated by heat from condenser 4 of the first heat pump. In a further embodiment (Figs. 5, 6), both heat pumps include fourway valves 2 so that heat exchangers 4 can serve as evaporators in summertime.