baber/WOPTO huggingface dataset:
Patent GB-234801-A (GB)
Title: A process for diminishing the losses by evaporation of volatile liquids from tanks or other metallic containers
IPC: B05D7/00
Filed: 1925-05-15
Abstract: 234,801. CantacuzÞne, S. G. June 2, 1924, [Convention date]. Addition to 234,798. Tanks and cisterns. - For the layer (3), of the coating described in the parent Specification, a layer of granular or filamentous material of low heat conductivity is substituted, such as sawdust, powdered cork, powdered charcoal, felt, wool, cotton, straw or similar material.
Patent GB-577802-A (GB)
Title: Hydraulic control valves
IPC: G05D16/10
Filed: 1943-08-07
Abstract: 577,802. Valves. HYDRAULIC CONTROL ENGINEERING CO. Aug. 7, 1943, No. 12784. Convention date, Aug. 24, 1942. [Class 135] A valve for controlling the flow of liquid, e.g. oil, to and from a reversible motor &c., comprises a casing having oil inlet and exhaust ports, a connection to the motor, and in a bore extending through the casing a control valve plunger and a normally closed pressure relief valve under the control of the plunger. As shown, a casing 1, Figs. 1, 2, having a pressure inlet port 23 and an exhaust port 37 at one end and two ports 47, 47<1> at the opposite end thereof connected to the motor, has a pair of parallel bores housing valve plungers 3, 5 independently operable through links connected to eye-bolts 19 screwed into the plungers. Each plunger is formed with a land 20 at one end adapted to close alternately the connection between the passage 41 leading to the port 47 and a transverse passage 25<1> connected by a passage 29<1> with the exhaust port and between the passage 41 and a passage 25 communicating with the inlet port. The land 17 at the other end of the plunger controls the direct connection between the inlet and the exhaust ports. The inner face of the land 20 is chamfered and the inner end of the land 17 tapered to permit a smooth non-jarring flow of oil through the valve. Apertured bushes 51 disposed between the passages 41 and a transverse passage 53 communicating by a passage 49 with the passage 45 are formed with seats for relief valves 55 loaded by springs 57 which increase the load on the valves as the plungers are moved inwardly. In operation, if pressure oil is supplied to the motor through the ports 47 by forcing the plunger 3 inwards, then the port 471 functions as the exhaust port and vice versa. The motor may be locked in position by simultaneously actuating ' the plungers so that pressure oil is supplied through the ports 47, 47<1> to opposite sides of the motor.
Patent GB-1270833-A (GB)
Title: Improvements in or relating to apparatus for the control of the supply of electrical power
Inventor: COPAGE DONALD
IPC: H05B1/02
Filed: 1969-03-11
Abstract: 1,270,833. 833. Electric heating systems, temperature control. DIAMOND H. CONTROLS Ltd. March 25, 1970 [March 11, 1969], No. 12788/69. Headings G3R and G3T. A block storage heater element 19, Fig. 1 is energized via snap action thermal relay contacts 12 and is maintained at a predetermined high temperature value during an "off-peak" tariff period pre-set on a time switch T and at a predetermined lower temperature level outside the off-peak period. A diaphragm 8 is connected to a sensor 10 which senses the block temperature. As the temperature increases the diaphragm opens successively normally closed contact pairs 2, 3. The diaphragm is displaceable by a knob K to preset the low temperature level while the high temperature level is pre-set by adjusting a screw 9. Outside the off-peak period the relay heater 15 is energized via contacts 2 and causes a bimetal strip 14 to bend and a screw 18 thereon effects closure of contacts 12 to energize the block heater element 19. During the off-peak period the relay heater 15 is energized via time switch T and contacts 3 to effect closure of contacts 12. Other block heaters may be connected in parallel, the time switch T carrying only the current necessary to heat the bi-metal strips of their control units. In a modification Fig. 2 (not shown) the contacts 2 and 3 carry the block heater current. In a modification Fig. 3 (not shown) the block heater current is carried by the time switch during the high temperature mode. In a further modification Fig. 4 (not shown) the block heater is energized only when the time switch T is closed. When the time switch is open a fan motor is energized.
Patent GB-686222-A (GB)
Title: Improvements in or relating to multiple pole automatic electric switches with magnetic and thermal tripping members
IPC: B01F29/83
Filed: 1951-05-30
Abstract: 686,222. Automatic circuit-breakers. SIEMENSSCHUCKERTWERKE AKT.-GES. May 30, 1951 [Oct. 1, 1948], No. 12789/51. Drawings to Specification. Class 38 (v) The subject-matter of this Specification is identical with that described in Specification 647,628.
Patent GB-814720-A (GB)
Title: Improvements relating to the preparation of moulds for casting resins
Inventor: REECE CHARLES NORMAN WILLIAM
IPC: B29C33/38
Filed: 1955-05-04
Abstract: A polyethylene mould to be used for casting resins, where the curing temperature of the resin does not exceed 150 DEG  C., is treated by exposing to high-energy irradiation those surfaces at least of the mould that are to come into contact with the resin, the radiation being sufficient to raise the softening point of the polyethylene in the regions of those surfaces to a temperature above the curing temperature of the resin to be cast.ALSO:A polyethylene mould to be used for casting resins, where the curing temperature of the resin does not exceed 150 DEG  C., is treated by exposing to high energy irradiation those surfaces at least of the mould that are to come into contact with the resin, the radiation being sufficient to raise the softening point of the polyethylene in the regions of those surfaces to a temperature above the curing temperature of the resin to be cast.ALSO:A polyethylene mould to be used for casting resins, where the curing temperature of the resin does not exceed 150 DEG C., is treated by exposing to high energy irradiation those surfaces at least of the mould that are to come into contact with the resin, the radiation being sufficient to raise the softening point of the polyethylene in the regions of those surfaces to a temperature above the curing temperature of the resin to be cast.
Patent GB-840822-A (GB)
Title: Improvements in and relating to the production of benzoic acid and substituted derivatives thereof
Inventor: COTTERILL COLIN BERTIE
IPC: C07C51/265
Filed: 1957-04-23
Abstract: The invention comprises a process for the preparation of aromatic carboxylic acids by the oxidation in the liquid phase by means of ozone or molecular oxygen, of alkyl aromatic compounds or their closely related oxygenated derivatives at elevated temperature and pressure, using a catalyst comprising a metal of variable valence, in which the proportion of bromine is less than 7.8 X 10-5 but not less than 1 X 10-7 gram atom per gram mol. of starting material.  The molecular oxygen may be introduced as such or as air or diluted air. Suitable temperatures are 100-300 DEG  C., and pressures up to 50 atmospheres may be used.  The process may be carried out in chromium/nickel austenitic or mild steel reactors.  Bromine may be introduced as such or as bromide e.g. hydrogen bromide, or a metallic or organic bromide.  Metals specified are cobalt, manganese or mixtures thereof, cerium and lead.  The concentration of metal may be e.g. 1-0.0005 gram atom per mol. of starting material.  The metal may be introduced e.g. as the acetate, nonanoate, propionate or naphthenate, and a solvent e.g. acetic acid, propionic acid or orthodichlorobenzene may be present in the reaction mixture. Starting materials mentioned are monoalkyl benzenes, and their aldehydes, alcohols, esters and hydroperoxide, e.g. toluene ethylbenzene, cumene, n and secbutyl benzene, but not those in which the alkyl group is tertiary.  Substituents which may be present in the starting materials are NO2, SO2 and SO2NH2.  An example is given of the oxidation of toluene to benzoic acid using various concentrations of cobalt, and bromine in the reaction mixture.  Specifications 804,612 and 810,020 are referred to.
Patent GB-139372-A (GB)
Title: Improvements in spring buffers for railway and like vehicles
IPC: B61G11/04
Filed: 1919-05-23
Abstract: 139,372. Gatwood, W., and Willans, G. H. May 23, 1919. Buffers.-Spring buffers of the type described iu Specification 18636/10 for railway vehicles have the pipe plunger formed of sheet metal stampings welded together, the abutting edges being machined true before welding. The buffer head 1, Fig. 1, is provided with a flange 10 fitting into the full diameter of the hollow plunger 3. The casing 4 is made of . two pressings riveted together, and the plunger 3 is also made of two pressings, the meeting edges of which are machined and welded together. The plunger 3 and flange 10 may be riveted as shown in Fig. 1, or the plunger may be flanged outwards and riveted to the buffer head as shown in Fig. 3. The plunger may be provided with a stem 2 which may carry an abutment 14 for the spring 5. In a modification, Fig. 5, the spring abutment is provided at the inner end of the plunger 3, and consists of a flange 8 backed by a stiffening-plate 16. The rod 17 is employed to hold the spring in its initial compression. In another modification, the spring abuts on a reinforcing plate riveted to the rear side of the flange 8, this plate being of larger .diameter than the plunger and working in an enlargement of the casing 4. In the modification shown in Fig. 8, the spring abutment 22 is formed as a recess, and a portion 24 of enlarged diameter abuts against the shoulder 21.
Patent GB-528749-A (GB)
Title: Improvements in or relating to looms
IPC: D03D35/00
Filed: 1939-05-02
Abstract: 528,749. Looms for weaving. SEAL & CO., Ltd., H., and WEBSTER, J. May 2, 1939, No. 13099. [Classes 142 (ii) and 142 (iii)] In a loom, particularly for smallware, the batten has a shuttle race comprising aligned portions on opposite sides of a space through which the warps extend, and a shuttle of flattened form is supported by the race at an intermediate position in its width, is operated on by driving means at said position, and receives the weft at its rear. The shuttle 10, Figs. 1 and 3, has a window 11 at the front, and is provided with a groove 17 on its upper and lower surfaces between the front and rear to engage with aligned race portions 31, 32, Fig. 2, disposed on opposite sides of the weaving space. The weft is guarded by wires 26, acted on by a back spring 22 and thumb bit 23, and tensioned by means comprising a ring or rings 12 carried by a tension spring or springs. A pivoted bow 36 is adapted to operate a stop motion when the weft breaks, and guard pins 35 prevent the weft being trapped between the shuttle and races. In order that the attendant may view the weft supply from the front, an inclined mirror may be mounted on the batten, or the race may be cut away at 38, 39, and the shuttle at 37. One shuttle, or two shuttles moving in opposite directions, is or are provided at each weaving space, and are driven by a shuttle rack 16, and pinions 33, from a rack or racks 34, the relation between the spacing of the pinions and the length of the shuttle rack being such that the latter is always engaged by at least one of the pinions. In a modified arrangement employing upper and lower shuttles, a single driving rack 134, Fig. 4, is employed the lower shuttles have racks on both their lower and upper faces and intermediate pinions 1331 engage racks on the lower faces of the upper shuttles. Idler pinions 140 or additional intermediate pinions 233 may be employed, and a dummy shuttle 110a is provided at each end of the batten. Specification 393,166 is referred to.
Patent GB-530244-A (GB)
Title: Improved manufacture of superphosphate fertilizers
Filed: 1939-05-02
Abstract: 530,244. Treating superphosphate. DAVISON CHEMICAL CORPORATION. May 2, 1939, No. 13129. Convention date, June 15, 1938. [Class 1 (iii)] Fresh, cured or partially cured den superphosphate is agglomerated by tumbling it in the presence of moisture, and dried, with agitation, in the presence of hot gases at such a rate and temperature that the fluorine content is reduced so that it is more than 30 per cent. less than that of the original phosphate rock, the particles being discharged with a moisture content of 4-6 per cent. As shown, finely divided superphosphate from container 14 is fed to hopper 11 to which is also supplied from hopper 21, say, 10 per cent. by weight of classifier dust, sand, cured superphosphate or ground phosphate rock. The mixture passes down a rotary container 1 wherein it is sprayed with ¢-2 per cent. of water from sprays 26. A flood lamp 37 is shown. It then passes through a water-cooled chute 43 to a rotary drier 2 wherein it is subjected to hot gases from an oil burner 33 disposed in refractory-lined chamber 32, the gases being exhausted by fan 53. The temperatures of the gases entering and leaving the drier are indicated on meters 29, 30. The nodules produced are shown as having a cellular interior with an indurated and encrusted outer layer. Specification 491,841 is referred to.
Patent GB-441745-A (GB)
Title: Improvements in or relating to multi-spindle automatic lathes or like machines
IPC: B23B13/06
Filed: 1935-05-03
Abstract: 441,745. Lathes. B.S.A. TOOLS, Ltd., Armoury Road, Small Heath, and OGILVIE, W., c /o B.S.A. Tools, Ltd., Montgomery Street, Sparkbrook, both in Birmingham. May 3, 1935, No. 13164. [Class 83 (iii)] A multi-spindle work turret bar-stock lathe or like machine has trip mechanism actuating an electric switch for cutting out the main driving motor of the machine or to actuate a device for cutting out the feed mechanism where any of the stock bars runs out. The feed tube spool guard 1 has recesses 2 to receive the spools 3 of the feed tubes 4 and is filled with spring fingers 5 having pegs 6 engaging each spool end. When a stock bar runs out the spool can be pressed forward by the peg 6 and the part 5a of the finger can then engage a trip lever 8 on the next indexing movement of the work turret. The lever 8 may be mounted on a rock shape 12 carrying a contact member 14 which depresses a switch knob 15 to stop the machine or to energize a solenoid to disconnect the feed clutch. In order to allow the free forward movement of the feed tube the feed ring 18 has a depression 19 formed therein. One of the inclined ends 21 of this depression acts as a guide to lead the spool of a freshly loaded tube into a feed shoe located at the feeding station.
Patent GB-132020-A (GB)
IPC: H01H33/02
Abstract: 132,020. Reyrolle & Co., A., Gregory, R. W., and Clothier, H. W. Sept. 2, 1918. Oil switches; switchboards. - In switch gear for controlling the connexions between sectional or duplicate bus-bars, the two main oilbreak switches B, B<1> and the isolating-switches C, C<1>, D, D<1> therefor are combined in one structure in which all the live contacts are immersed in oil. The main switches may be in the same oil chamber separated by a partition; the switches C, C<1> between the main switches and the bus-bar sections are preferably in separate oil chambers. The isolating-switches D, D<1> connecting an oil-immersed reactance or other apparatus to the main switches may be in one chamber. An auxiliary movable contact K may be used to short-circuit the reactance, &c. All the switches may be in one tank, in which partitions may be arranged. Interlocks are provided for the switches ; the isolating switches are automatically earthed for example by devices as described in Specification 122,443. Specification 122,885 also is referred to.
Patent GB-506787-A (GB)
Title: Improvements in or relating to the tempering of glass sheets
IPC: C03B35/20
Filed: 1937-08-26
Abstract: 506,787. Tempering glass ; cradles for lifting and lowering. GILT EDGE SAFETY GLASS, Ltd., GROTEFELD, A. W., and SHAW, J. J. Aug. 26, 1937, No. 13205/39. Divided out of 506,723. [Class 56] [Also in Group XXX] A device for supporting glass sheets during tempering comprises a number of sets of abutments arranged one above another and adapted to support a number of glass sheets arranged vertically above one another, each set of abutments being adapted to engage the lower edge of a sheet at a number of points and to support it without deformation during heating. The device comprises a supporting strip 29, Fig. 2, provided with rollers which run along an overhead rail 27, and a number of supporting cradles 30 suspended from the strip 29. Each cradle 30 is composed of a wire 31, Fig. 3, which is bent into elongated U-shape and is again bent to form a number of loops 32 each of which receives and supports a glass sheet. The lower end 33 of each loop serves as an abutment for supporting a glass sheet, while the upper edge of the sheet is engaged and supported by a notch 36 in a metal piece 34 that slides on the wire 31. The cradles are supported from the strip 29 by turn buckles 37 which are adjusted to equalize the pressure exerted by the abutments 33 on the lower edges of the sheets. The loops or eyes 38 at the lower ends of the cradles may be engaged by loops 39 on a wire 40 to minimize relative movement between the cradles. In a modified construction, the abutments may be composed of metal pieces similar to the pieces 34 and secured to the sides of the cradle. The abutments may also be made of porcelain. In another construction, the cradles are formed of metal strips 30, Fig. 5, and the abutments are composed of levers 41 pivoted between the strips and carrying at their ends forked members 42 which engage the lower edges of the glass sheet. Specifications 449,602, 449,864, 473,065, 473,066, 506,723, and 506,724 are referred to.
Patent GB-636606-A (GB)
Title: Improvements in or relating to adhesive preparations for medical and like use and methods of obtaining the same
IPC: A61K49/00
Filed: 1947-05-16
Abstract: An adhesive preparation is made by suspending a hygroscopic, transdermally biologically active substance in a solution of a water insoluble but water permeable cellulose ether in an inert organic solvent.  In one example 5 grams of ethyl cellulose is dissolved in a mixture of 8 volumes of dry carbon tetrachloride and 2 volumes of dry chloroform.  Twenty grams of dry powdered autolytic tuberculin is stirred in to give a uniform suspension. This last substance may be prepared as described in Specification 632,672.  The preparation may be applied to the skin and allowed to dry or it may be dried to form a film which is cut to convenient sizes and stored.  In the latter form it is applied to the skin by softening with a drop of chloroform.
Patent GB-345859-A (GB)
Title: An improved process for the production of explosives
IPC: C06B25/00
Filed: 1930-04-30
Abstract: The cyclic ketone alcohols tetramethylolcyclopentanone, tetramethylolcyclohexanone, and octamethylolcyclohexandione, and the corresponding cyclic alcohols tetramethylolcyclopentanol, tetramethylolcyclohexanol, and octamethylolcyclohexandiol are nitrated with concentrated or mixed acids by the ordinary process, and the nitrated products are used in explosives.  The cyclic ketone alcohols are obtained by condensation of the corresponding cyclic ketones with formaldehyde in the presence of alkali; by reduction they are converted into the cyclic alcohols.
Patent GB-234496-A (GB)
IPC: F01D11/00
Filed: 1925-05-21
Abstract: 234,496. International General Electric Co., Inc., (Assignees of Allgemeine Electricitõts Ges.). May 21, 1924, [Convention date]. Blades.-Relates to means for securing a fluidtight joint between the inner ends of the stationary blades and the rotor in turbines of the reaction type. The rotor b is provided with grooves c, the depth of which may increase with the pressure difference between two stages, and the stator blades d<1> project into these, grooves, the intermediate spaces between the blades being filled by packing-pieces e connected to the blades by a wire f. A labrynth packing g is provided at the inner ends of the blades and packing- pieces. Alternatively, the stator blades may be fitted with a special shroud-ring h, or a ring i mav be dovetailed on to the stator blades, the dovetail groove, being filled in, flush between the blades. The labyrinth packing may be fitted at one or both sides of the groove. The grooves c have substantially the same outline cross-section as the stator blade, extensions.
Patent GB-629109-A (GB)
Title: Improvements in or relating to moulding thermo-plastic synthetic resins by extrusion
IPC: B29C48/43
Filed: 1946-05-02
Abstract: 629,109. Extrusion presses. SOC. P. A. LAVORAZIONE MATERIE PLASTICHE. May 2, 1946, No. 13323. Convention date, Feb. 2, 1940. [Class 87 (ii)] [Also in Groups XXVI and XXX] An extrusion press for thermoplastic synthetic resins comprises two intermeshing screws rotating in the same direction and having sections 4, 5 of thread of successively reduced pitch and diameter towards the outlet of the press, so as to increase gradually the pressure on the resin. A section without screw thread may be interposed between two sections, in which the resin is baked.
Patent GB-966787-A (GB)
Title: Dry cleaning apparatus
IPC: D06F43/08
Filed: 1962-04-06
Abstract: 966,787. Filters for liquids. GENERAL MOTORS CORPORATION. April 6, 1962 [April 26, 1961 (2)], No. 13324/62. Heading B1D. [Also in Division D1] Several filters with removable throw-away filter elements containing sorption and filtration materials are described for cleaning the solvent in a dry-cleaning machine. Fig. 5 shows, in a canister 118, a filter element 130 consisting of three containers 138, 140, 142 having annular cross-sections and perforated walls, through which the solvent passes in turn. The filter element 130 is pressed by a spring 134 bearing against the lid 122 of the canister 118, to seal the junction 136 of the element 130 with the outlet from the canister. The containers 138, 142 contain 50% sisal and 50% felt for filtration. The container 140 contains carbon for sorption. Fig. 10 (not shown) depicts a similar filter having one annular container 172 in which the filtering materials are arranged in adjacent annular layers 174, 176, 178 one within another and coaxial with the container, and through which the solvent passes radially. Figs. 12, 13, 15 (13 and 15 not shown) show, inside a container 344, a pleated filter element 380 supported on a perforated screen 362 which is supported on shoulders 363 on endplates 358, 360. Solvent enters the filter through a distribution header 386. At high flow-rates, some solvent overflows through holes 364 in the end plates 358, 360, thereby by-passing the filter element 380. The element 380 may consist of a sandwich of sorbing materials (possible materials listed) between sheets of porous paper. Figs. 16, 17 (17 not shown) show a similar filter in which the pleated filter element 413 with the edges of its pleats vertical is bent round to be continuous with itself, and is supported against a perforated screen 416. The solvent enters through a central hole 420 in the base of the filter container 412, and passes through the filter element 413 to leave the container 412 via an outlet port in its side wall, except at high flow rates when solvent overflows the top of the element 413, thereby by-passing it.