baber/WOPTO huggingface dataset:
Patent GB-551489-A (GB)
Title: Improvements in or relating to the production of screw threads by milling
IPC: B23G1/32
Filed: 1941-08-22
Abstract: 551,489. Milling screw-threads. BENDIX AVIATION CORPORATION. Aug. 22, 1941, No. 10741. Convention date, Sept. 26, 1940. [Class 83 (iii)] In a method of and apparatus for cutting screw threads, particularly for engine starter gearing, a constant-pitch thread is milled in the work by a formed cutter, the pitch of the thread being reduced when one side of the cutter runs out of the work thus enlarging the entrance to the thread. The fixed bed 1 carries a movable work-slide 2 and an adjustable tool-slide 3. The work-slide carries a bearing 6 for the head 5 of a master screw 4 to the same pitch as the threads to . be produced. Flanges 7, 8 on the head cause the axial movement of the screw to be imparted to the work-slide. The screw is driven from a pulley 14 through reduction gearing 15 and worm wheel 9, the latter being slidable on the extension 12 of the master screw. The worm is mounted in a pivoted dropbox which is normally held up by a latch 21 engaging under a lug on the worm housing. The latch is controlled by a rod 23 carrying adjustable stop-nuts 28 arranged so that after the required travel of the work-slide a stud 27 on the bearing 6 engages the stop nuts and moves the rod against the pressure of a spring 29 to disengage the latch. The screw 4 runs in a master nut 31 having also an external thread of lower pitch engaging a threaded member 33 mounted in the fixed bearing 26. The master nut is normally held against rotation by a lever 34 secured to the nut at 35 and retained against an abutment 36 by detent means 37. The work is mounted on an arbor 44 having, for a three-start thread, three notches coacting with one or more driving lugs 43 on the head 5. The outer end of the arbor is carried on a dead centre 46 in a tailstock 47 which is urged forward by a spring 55 mounted on a shaft 48 between an abutment on the shaft and the tailstock 47. The shaft 48 has a head 53 which positively withdraws the tailstock and is operated from a lever 61 acting through a toggle link 57. During its combined rotary and axial movement the work is threaded by a formed cutter 66. In operation, after positioning the work, the worm gearing 9 is engaged and, the master nut being stationary, the main part of the thread is cut. When the cutter begins to run out of the work a collar 38 engages the lever 34 through a spring ball 39 thus coupling the nut 31 to the shaft 4. The pitch movement is now imparted by the nut 31 rotating in the part 33 and since this pitch is less than that of the screw 4 the outer part of the last thread on the work is tapered off as indicated at 71, Fig. 4. When this is completed the worm box is released by tripping of latch 21 and the work stopped. A spring 60 returns the lever 34 to normal position and the shaft 4 is returned to its starting position by a spring 67 and flexible cord 68.
Patent GB-436386-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N3/05
Filed: 1934-04-10
Abstract: 436,386. Exhaust and like silencers. POUGHER, A. W., 109, Chorlton Road, and FITTON, S., 48, Brown Street, both in Manchester. April 10, 1934, No. 10771. [Class 7 (ii)] Inlet or exhaust gases are divided up into separate streams by a plurality of honeycomb cells 6 formed by longitudinally-arranged corrugated plates 2. The plates may be welded, soldered, or otherwise fixed directly to a container 3, or they may be fixed to a number of rings so as to be bodily removable from the container 3. One or both ends of the assembly of corrugated plates may be of conical formation, and the inlet end 7 of the container is also conical. The plates may be formed with longitudinal ribs or flutings of less depth than the corrugations. The container 3 is preferably surrounded by a casing 4 having longitudinal or spiral flutings 5 to form passages for air, which has a cooling action on the gases, and mixes with them in a space 9 at the exit end of the silencer. The corrugations may be circular, elliptical, or angular.
Patent GB-1218014-A (GB)
Title: A method of refining the structure of alloys
Inventor: COLLEY CEDRIC CHARLES EDWARD
IPC: C22F1/16
Filed: 1967-01-25
Abstract: 1,218,014. Improving physical properties; making rods and plates; continuous casting. PRESSED STEEL FISHER Ltd. 15 Jan., 1968 [25 Jan., 1967; 8 March, 1967], Nos. 3714/67 and 10805/67. Headings B3A, B3F and B3V. [Also in Division C7] Eutectoid or near-eutectoid alloys that after quenching from above the eutectoid temperature to ambient retain their high-temperature structure for an incubation period prior to transformation to the eutectoid structure are worked during the incubation period. As exemplified, a 78% Zn/22% Al alloy rod was heated at 350‹ C. for 30 minutes, quenched into water and drawn during the incubation period, which lasted 50 seconds; another specimen was quenched from 350‹ C. into cold water, cooled immediately to - 10‹ C. and rolled to 50% reduction within three minutes of quenching. In a further example, an 80% Zn/20% Al alloy was heated at 550‹ C. and poured between two 2-foot diameter water-cooled steel rolls mounted horizontally with a roll gap of 1/10 inch. The sheet leaving the rolls was allowed to cool to 325‹ C., spray-quenched to ambient temperature, and rolled.. The molten alloy was also cast on to the surface of a single roll.
Patent GB-417730-A (GB)
Title: Improvements in and relating to combined reciprocating and turbine engine installations
IPC: F01K7/02
Filed: 1933-04-11
Abstract: 417,730. Motor power plant. PARSONS MARINE STEAM TURBINE CO., Ltd., and COOK, S. S., Turbinia Works, Wallsend. on-Tyne. April 11, 1933, No. 10848. [Class 110 (iii).] In a reciprocator-turbine plant, in order that the turbine B, which is shown as L.P., but may be H.P., may be arranged alongside the reciprocator A, an idler gear-wheel 9 is provided between the gear 4 on the turbine shaft 2 and the double-reduction gearing 5, 7 connecting with the propeller shaft 8. The bearings of the idler-wheel may have damping means to take up cyclic variations in torque.
Patent GB-1083855-A (GB)
Title: Lactogenically active proteins and the manufacture thereof
IPC: A23J1/00
Filed: 1965-03-15
Abstract: A lactogenic hormonally active protein is prepared from porcine pituitary gland by mixing an aqueous prolactin-containing extract of the gland with a C1 to C3 alkanol, dialyzing an aqueous slurry of the resulting precipitate against water, and then drying to a powder, at pH 9 to 9.5.  The powder is dissolved in water at pH 9 to 9.5, and the solution applied to cross-linked dextran gel, followed by elution with 0.1 M sodium bicarbonate. The eluate comprises two proteinaceous fractions, of which the one which is slower in eluting is collected, dialysed, dried, and p  dissolved in pH 8.2 tris (hydroxmethyl) aminomethane buffer; the solution is applied to a diethylaminoethyl cellulose column, and subjected to gradient elution with the said buffer containing Na Cl up to an ionic strength of 0.5 the fractions having prolactin activity, as shown by their effect on pigeon crop sac, and containing protein are collected, purified and dried to give the purified hormone, having the following characteristics:-(1) Alanine as the N-terminal amino acid; (2) an isoionic point of pH 4.95; (3) an isoelectric point of pH 5.0; (4) a molecular weight of 25,000; (5) a specific rotation of -23 DEG ; (6) a sulphur content of 2.39%; (7) a nitrogen content of 17.75%; (8) an amino acid analysis of lysine 10, histidine 10, arginine 14, aspartic acid 22, threonine 6, serine 17, glutamic acid 30, proline 11, glycine 16, alanine 15, valine 9, methionine 4, isoleucine 12, leucine 24, tyrosine 7, phenylalanine 7, 1/2 cystine 14, and tryptophane 3; (a) a prolactin activity of 30 International Units of pigeon crop sac activity per mgm.
Patent GB-108503-A (GB)
Title: Improvements in Apparatus for Expressing Liquid from Peat.
Inventor: HINCHLEY JOHN WILLIAM
IPC: C10G5/04
Filed: 1916-08-03
Abstract: 108,503. Hinchley, J. W. Aug. 3, 1916. Platen-presses. - The apparatus for expressing liquids from peat &c. described in Specification 101,782 is provided with means for pumping liquid down the grooves 51 or other channels at the back of the strainers 52 which are not used for the admission of gaseous fluid. By this means, obstruction of the grooves and the strainers is prevented. A perforated liner 53 is provided as described in Specification 110,384.
Patent GB-1491559-A (GB)
Title: Method for determination of triglycerides
IPC: C12Q1/61
Filed: 1975-03-17
Abstract: 1491559 Determination of triglycerides DOW CHEMICAL CO 17 March 1975 [20 March 1974] 11021/75 Heading G1B Triglycerides in biological fluids are determined by a method comprising hydrolyzing the triglycerides to produce glycerol and quantitatively analyzing the hydrolysis mixture to determine the glycerol content, the hydrolysis being carried out by mixing the biological fluid with a solution of alkali metal hydroxide in methanol to provide a hydrolysis mixture containing from 75 to 99.8% b.w. methanol and an alkali metal hydroxide concentration of from 0À15 to 0À5N and holding the resulting hydrolysis mixture for a time sufficient to hydrolyze triglycerides. Magnesium sulphate may then be added to precipitate phospho-lipids. The glycerol may be determined by reaction with glycerol kinase and ATP to produce glycerol 1- phosphate and then with glycerol 1-phosphate dehydrogenase and NAD to produce dihydroxyacetone phosphate and NADH, the reduction of NAD being followed by ultraviolet spectroscopy, or optionally by the reaction of the NADH with a tetrazolinum dye to form a colour which is measured. Alternatively the glycerol may be reacted with glycerol dehydrogenase and the ultraviolet measurements made.
Patent GB-833037-A (GB)
Title: Improvements in or relating to the production of metallic coatings
Inventor: CLAYTON ERITH TAINTON
IPC: C23C24/04
Filed: 1957-04-04
Abstract: The process of the parent Specification is applied to the coating of non-metallic articles.  The articles are milled together with the plating particles and, if desired, additional impacting material such as aluminium-coated iron shot or lead slugs, and an addition substance, such as a plastic, graphite or a heavy metal sulphide, which produces a thin film on the article. The process is described as applicable to the coating of articles made of glass, ceramic, plastic, boron carbide and wood with aluminium, tin and zinc.
Patent GB-142111-A (GB)
Title: Insulating and building material
IPC: D21J1/08
Filed: 1920-04-21
Abstract: 142,111. Fabriks Aktiebolaget Kronsten, (Assignees of Eklund, T. A., and Lofvcberg, C. G.). April 24, 1919, [Convention date]. Addition to 140,431. Compositions containing marl and fibres.-In the composition described in the parent Specification, the cellulose free from incrustating substances is wholly or partly replaced by cellulose not free from " incrustating substances " such as moss-litter, peat fibre, kelp, straw, chaff, hemp, flax, wood-pulp, and the like. A small quantity of fibre not containing cellulose, such as asbestos, slag-wool, cow-hair, may also be added.
Patent GB-237041-A (GB)
Title: Improvements in picture displaying apparatus
IPC: G09F11/29
Filed: 1924-05-05
Abstract: 237,041. Kent-Mitchell, Ltd., and Galley, F. G. May 5, 1924. Reel and non-endless web apparatus. - In p i c t u r e - displaying apparatus of the kind described in Specificat i o n s 9363/15 and 182,964, each roller carrier a is formed with an opening, the opposite ends of which consist of recesses c while the upper and lower sides d, e are oppositely curved to form elliptical parts. Each operating chain b is provided with a pin or a flanged roller f freely mounted on a spindle g projecting horizontally from a bifurcated link-connecting member h. The pin or roller engages one of the recesses c while the carrier is rising or falling, and runs along the curves d, e when the carrier is at the top and bottom position respectively. Two chains b may be provided for each carrier, and the roller f may have two flanges.
Patent GB-1341239-A (GB)
Title: Refractory nozzle for metallurgical vessels
IPC: C04B35/14
Filed: 1971-04-23
Abstract: 1341239 Pouring nozzles DIDIER-WERKE AG 23 April 1971 [23 April l970 11149/71 Heading F4B A pouring nozzle for a tundish comprises a refractory body, e.g. a quartz with about 14% chromic oxide, with an annular insert disc 2 of a material with a higher heat conductivity, e.g. a cermet based on 3 parts of molybdenum and I part of zirconia. The insert is held in placed by a known retaining ring 3 and may have a thickness of between 5-20% of the central orifice diameter. It may also be formed with a number of additional holes (6, Fig. 5) to modify the conductivity effect. In a modification (Fig. 3) the insert is cemented into the nozzle outlet, whilst further modification (Figs. 4 and 6) show two spaced inserts used in an ordinary nozzle and an immersion nozzle respectively. The inserts may also be made of corundum, zircon or zirconia.
Patent GB-590321-A (GB)
Title: Improved process of preparing phenolic resin compositions and product thereof
IPC: C08G8/24
Filed: 1943-07-09
Abstract: Glue compositions are prepared by heating a monohydric phenol with not more than 25. mols. of formaldehyde in aqueous alkaline solution having a pH of 9 or higher until a low polymer is formed which is still soluble in the reaction mixture, adding a dihydric phenol together with sufficient alkaline material capable of forming a salt with a phenol to keep the reaction product in solution, to dissolve the dihydric phenol, and to maintain a pH of 9 or higher, and further condensing the resulting product, but only to such an extent as to obtain a product that is completely miscible with water.  Dihydric phenols specified are resorcinol, catechol, hydroquinone.  The resorcinol may be mixed with the monohydric phenol at the beginning of the reaction in the proportion of not more than 4 parts by weight resorcinol to 10 parts monohydric phenol.  The solution should be cooled below 75 DEG  C., preferably 40-75 DEG  C., before adding the dihydric phenol.  The proportion of dihydric phenol is preferably 2.5-10 parts for each 10 parts of monohydric phenol. Paraformaldehyde and hexamethylene tetramine may be added just before curing, and the proportion of formaldehyde used initially may be 1.5-2.5 mols. per mol. phenol.  Alkalies which may be used are caustic soda or potash or lime.  Examples describe the reaction according to the foregoing of phenol, resorcinol, and caustic soda. The resins may be mixed with fillers such as wood flour and walnut-shell flour, and the glues may be spray-dried and reconstituted with water. Curing takes place at 120-240 DEG  F.  The glues are used in the manufacture of plywood and are bonding agents for paper, rockwool, cork, sand and compregnated wood, i.e. board prepared by laminating phenolic resin impregnated veneers.
Patent GB-224165-A (GB)
Title: Improvements in electrical advertising signs
IPC: G09F11/26
Filed: 1924-05-06
Abstract: 224,165. Jarratt, S., and McMullen, W. A. May 6, 1924. Reel and endless-web apparatus.-A sign comprises an endless band 2 having the legend formed of a number of small perforations and located behind a frosted gla.ss window. Lamps 3 shine through the perforations and the window, which may in addition have a sheet of opal glass, or be in two parts of different colours. The band passes over rollers a - - k and is driven bv a motor p, spring-controlled idler pulleys l, l<1> being provided for tensioning.
Patent GB-987390-A (GB)
Title: Centrifuge construction
IPC: B04B1/20
Filed: 1964-03-17
Abstract: 987,390. Centrifugal separators. PENNSALT CHEMICALS CORPORATION. March 17, 1964 [March 25, 1963], No. 11250/64. Heading B2P. In a centrifuge comprising a rotor 16 having a peripheral shell 20 extending between end walls 18, 22, the solids deposited on to the shell 20 are moved by means of a conveyer 34 along an inwardly tapering wall portion 20a of the shell towards a solids discharge port 30 adjacent one end wall of the shell, and a tension member 38, extending from the conveyer 34 externally of the rotor 16 through an end wall thereof adjacent the port 30, engages against a bearing surface located on the side of the end wall remote from the conveyer bearing the axial thrust exerted upon the conveyer by the movement of the solids towards the discharge port 30. As shown, the member 38 is threadedly secured to the conveyer 34 and has a shoulder 44 engaging a roller bearing 46 located between the shoulder 44 and a shoulder 42 formed inwardly of a drive pulley 46 secured to an extension of the end wall 22. Liquid-solids mixture is fed through a tube 52 supported by a bracket 56 against an accelerator plate 53 and through a port 54 in the conveyer body which carries a helical blade 36. The clarified liquid is discharged through a port 26 in a plate dam 28 secured to the end wall 18. The conveyer is splined to a shaft 48 driven at a different speed from the conveyer shaft passing through a supporting bearing 14 through gearing (not shown). In a modification, the bearing surface taking up the axial thrust upon the conveyer may be supported by the bracket 56. In a further modification, the tension member 38 may be replaced by a compression member extending from the conveyer through the end wall 18 to be supported by a bearing surface external of this end wall. U.S.A. Specification 2,703,676 is referred to.
Patent GB-227778-A (GB)
Title: Improved high pressure lubricating syringe
IPC: F16N3/12
Filed: 1924-05-07
Abstract: 227,778. Trinquart, L. G. Jan. 18, 1924, [Convention date]. Single - acting suction-valveless piston pumps; suction reservoirs. - A lubricator comprises a reservoir a slidably connected to a pump barrel c<1> and carrying a pump plunger g which is kept apart from the barrel by a spring h. The barrel has a delivery valve k and a rounded nozzle e adapted to fit a lubricating nipple. When the reservoir is pushed down the plunger enters the barrel and expels the lubricant through the valve k to the nozzle. When the reservoir and plunger are raised by the spring h, lubricant flows into the barrel from the reservoir. A piston i exposed to atmospheric pressure rests on the lubricant. In the form shown in Fig. 4, the barrel is rigidly connected to the reservoir, and the plunger is reciprocated by a handle. The valve f<1> of the lubricating nipple shown in Fig. 5 is dished on top to form a bearing for the nozzle e.
Patent GB-1352879-A (GB)
Title: Scraper chain conveyors
IPC: B65G19/24
Filed: 1971-04-26
Abstract: 1352879 Scraper conveyers GEWERKSCHAFT EISENHUTTE WESTFALIA 26 April 1971 [31 Oct 1970] 11284/71 Heading B8A A device for interconnecting the chains and scraper elements of a scraper chain conveyer comprises two similarly shaped parts 1, 2 formed from steel, each part comprising a central portion 4 which abut each other along a plane 5 along which they are welded and two curved portions 6 which receive the oval links of the chains of the conveyer, the plane 5 extending transversely to the direction of the chains, and linear end portions 7 adjoining each of the curved portions 6 and having aligned transverse bores 9 which receive bolts (not shown) with which the scraper elements (not shown) are attached to the portions 7.
Patent GB-960838-A (GB)
Title: Improvements in optical illusion devices
Inventor: HELLINGS GEOFFREY MOFFAT
IPC: G09B5/02
Filed: 1961-03-20
Abstract: 960,838. Flight training apparatus. GENERAL PRECISION SYSTEMS Ltd. March 28, 1962 [March 28, 1961], No. 11374/61. Heading B7W. In flight training apparatus of the kind providing for relative motion between an illuminated model terrain and the entrance pupil of an optical viewing device so that a trainee has an illusion of motion of the terrain as seen from the viewpoint defined by the entrance pupil, means are provided for simulating the effect of mist or haze in daylight conditions by illuminating parts of the model remote from the viewpoint by light of a nature differing from that used for foreground illumination, the natures of the pigments or dyes forming the surface patterning on the model being so selected in relation to the two forms of light that they all appear of comparable brightness when remote and under one form of light, but not when near and under the other. The surface patterning and the general illumination may be of appropriate tints or the patterning may include fluorescent materials illuminated in remote areas by ultra-violet lamps and in the foreground by normal lamps. A television viewing system may be used to give a monochrome effect.
Patent GB-122586-A (GB)
Title: Improvements in and relating to Vessels, Floats or the like.
Inventor: MOGENSEN MARIUS PEDER
IPC: B63B5/18
Filed: 1918-07-11
Abstract: 122,586. Mogensen M. P. July 11, 1918. Addition to 119,189. Pontoons.-A reinforced. concrete pontoon &c. built up of separate precast hexagonal, triangular, and quadrangular cells, as in the parent Specification, is provided with a central keel 17 which projects below the bottom of the cells. A row of higher cells 20 may be placed outside the lower cells so that one or more upper decks 21 may be supported above the deck 22 covering the lower cells. An inclined angular bilge may be provided by outer cels having inclined bottoms 24. Some of the cells may communicate with each other through holes near the botom for pumping out; these holes may be closed by watertight doors.
Patent GB-706926-A (GB)
Title: Improvements relating to gas turbine engines
Inventor: FLETCHER ARTHUR HOLMES
IPC: F02C6/00
Filed: 1951-05-15
Abstract: 706.926. Gas turbines. ROLLS-ROYCE, Ltd. July 2, 1952 [May 15, 1951], No. 11392/51. Class 110(3) [Alsa in Group XII] In a turbine provided with means to re-heat the gases between two adjacent rotor stages, an annular space surrounding the means is pressurized by air led from a compressor which is driven by the turbine. The plant shown has a high-pressure stage 10 which drives a compressor supplying air to the main combustion chambers, and a second stage 14. 15 driving a power output shaft 23. The invention includes means to support the re-heat apparatus comprising a number of combustion chambers 12. Compressed air, from a compressor, enters from a pipe 65 into an annulus outside a wall 66, passes through ducts 67 and around the combustion chambers 12. and, as indicated by the arrows, some flows and cools seals 53, 54 and escapes through a gap between a shaft 10a and the power shaft 23. The pressure of the air from pipe 65 is preferably higher than that of the gases in the chambers 12, to relieve the walls of the latter from stresses due to pressure differences. Part of the compressed air passes through ducts 68, over the nozzle ducts 58 on through ports 69 and around seals 56, 57, and into a space within the bores of the rotors 14, 15. The air then is forced upwards to effect sealing at the nozzle blade assembly and prevent down-flow of gases from the blade rings. The compressor system may comprise a low-pressure compressor, driven by a low-pressure stage of the turbine, which delivers to a high-pressure compressor, which may be a two-stage centrifugal compressor driven by the shaft 10a. Exhaust gases from the rotor 10 pass through ducts 30 and fuel is supplied by way of a strut 64 and injector 63 which faces a baffle 60, 61 provided with an ignition point 64A. Some air from outside the chambers 12 may pass into the combustion spaces through ports 71 and the pressure difference across the chamber walls may be about 10 1bs. per square inch. Nozzles 11 are supported by a radial wall 27, which is extended to form a wall 28, connecting webs 29 being provided. A casing part 34 has a radial wall 36 which supports the nozzle-vane assembly 13, 16. Webs 41 extend inwards to support a tubular wall 42. Each duct 45 is a sliding fit on a flanged connector 46 to allow for expansion between the duct and the main structure. A thrust bearing 47 and a journal bearing 48 are provided. The shaft 18 is coupled to,the shaft 23 through gearing 20, 21 and splines 22. The'shaft 23 may drive a marine propeller.