baber/WOPTO huggingface dataset:
Patent GB-570004-A (GB)
Title: Improvements in helicopters
IPC: B64C27/37
Filed: 1943-05-18
Abstract: 570,004. Helicopters. WEIR, Ltd., G. & J., and PULLIN, C. G. May 18, 1943, No. 7911. [Class 4] Each rotor blade of a helicopter comprises an inboard part pivoted to the rotor hub about a " flapping " axis and an outboard part pivoted to the inboard part solely about a radial pivot and so connected that upward and downward flapping movements of the blade as a whole are accompanied respectively by proportionate reductions and increases in the angle of incidence of the outer part. The hub is driven about a member mounted on the aircraft and tiltable in any direction. An inboard part 32a of a blade is carried by a spar 32x fixed to a member 50 pivoted about 'a horizontal hollow pivot 48 fixed to a drag link 46 secured to a vertical pivot 44 mounted in upper and lower lugs 42 on the hub 31. The outer part 32b is pivoted to the inner part by a radial spindle 54 and a lever 56 projecting from the forward edge of the part 32b has a ball end 57 engaging one end of a lever 58 connected to the pivot 48 through an epicyclic gear so that the lever 58 follows the flapping movements of the blade but at a reduced amplitude to effect changes of incidence of the part 32b. For this purpose the lever 58 is secured by bolts 59 to a planet carrier 60 having planet wheels 63 gearing with an internally toothed wheel 64, formed on an extension 65 of the pivot 48, and with a sun wheel 62 splined to a sleeve 67 pivoted within the pivot 48 and connected to the member 50, so as to oscillate therewith, by a bracket 69. The epicyclic gear is removable by undoing the bolts 59 and a nut 70 so as to be replaceable by gears of different tooth ratios in order to vary the ratio of incidence change to flapping angle change. Either or both of the pivots 48, 54 may be slightly oblique as viewed in plan so that a flapping of the inboard part may be accompanied by a small change of incidence and the torsional displacement of the outboard part may be accompanied by a slight flapping relative to the inboard part of the same or opposite sign to the main flapping movement. The lever 58 may be fixed to the pivot 48 but in this case a longer lever 56 would be necessitated.
Patent GB-517366-A (GB)
Title: Process for far-reaching deoxidation of steel by carbon
IPC: F27D27/00
Filed: 1938-03-15
Abstract: 517,366. Deoxidizing steel. SOC. D'ELECTRO-CHIMIE, D'ELECTRO-METALLURGIE, ET DES ACIERIES ELECTRIQUES D'UGINE. March 15, 1938, No. 8041. Convention date, March 16, 1937. [Class 72] In the deoxidation of oxidized steel by means of carbonaceous materials, the steel and carbonaceous material are introduced into a container which is rocked or rotated so that the steel and the carbonaceous material are repeatedly poured together with such energy that the whole or the greater part of the carbonaceous material is distributed in the molten steel, no external heat being applied during the process. To prevent a too violent reaction, the speed and/or the amplitude of the movements of the container are controlled or the carbonaceous material is introduced periodically in regulated fractions at intervals during the treatment or in less finely divided form. Alloying elements as such or in the form of alloys may be added to the steel after treatment. In one form, the container comprises two chambers 1, 2 having a common mouth 3 and provided with a refractory lining 5 and is mounted on a shaft 6 which receives an alternating oscillating movement. Specification 297,759, [Class 72], and U.S.A Specification 2,015,691 are referred to.
Patent GB-164536-A (GB)
Title: Improvements in and relating to electric candle lamps
IPC: F21S4/00
Filed: 1920-03-18
Abstract: 164,536. Damey, C. A. March 18, 1920. Candles, imitation. -A device for steadying electric candle lamps comprises two washers 4, 5, Fig. 1, one of which is fitted with pins 8 extending through apertures in the other, and springs 9 mounted on the pins serving to force the washers apart. The washers a.re arranged around an adapter 2 and are pressed respectively against a shoulder on the adaptor and against the lamp-holder 3. In a modified construction having two telescopic conductors extending from the holder to the lamp, the washers are arranged on the conductors which serve to carry the springs. In another construction, the lamp is carried by a column 15, Fig. 4, provided with slots 16 to receive lugs 18 on a washer 17, and the springs 19 are arranged between the upper part of the column and the lugs 18.
Patent GB-165180-A (GB)
Title: Improvements in or relating to football boots
IPC: A43B5/02
Filed: 1920-03-18
Abstract: 165,180. Abbott, O. H. March 18, 1920. Athletic boots. - To prevent mis-kicking, the toe-cap 1 of a football boot is furnished with one or more lines of stitching 3, preferably raised, located forward of the usual toe-cap seam 2. The lines may intersect each other, while the stitching may be arranged only on the marginal portions of the toe-cap, extending, for example, from the sole to the line 4-4.
Patent GB-276582-A (GB)
Title: Method of fastening tubular metal bodies in holes of other metal bodies
IPC: B21D39/06
Filed: 1927-03-24
Abstract: 276,582. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co.). March 24, 1927. Tube-expanders.- A tube is expanded into a hole of larger diameter in a metal sheet and its end flared outwards by progressively forcing therein a tool having a peripherally continuous annular head of diameter greater than the internal diameter of the tube, followed by a flared portion of greater diameter than the head. The tube 2 is held in a hole. of greater diameter in a metal sheet 1 and is expanded thereinto by a tool 4, which has an oval head 9 of greater diameter than the internal diameter of the tube, and is driven forward by a continuous or intermittent source of power or blows such as a hydraulic ram or hammer. The tool has an enlarged conical head 10 so as to produce a bell-shaped opening in the end of the tube. The tool may be extracted by a hook inserted into a hole therein, by pushing it back from the other end or by using a doubleacting hydraulic or other power cylinder. The hole in the metal sheet may be formed with a groove 14 into which the metal of the tube is forced during expanding. One end of a tube into which another section is to be fitted may be expanded in a similar manner.
Patent GB-1452929-A (GB)
Title: Fire protection equipment
IPC: A62C37/38
Filed: 1973-02-20
Abstract: 1452929 Fire fighting system IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Feb 1974 [20 Feb 1973] 8196/73 Heading A5A An automatic fire extinguishing system comprises a source of fire extinguishing fluid under pressure, a distributing system for the fluid, and a valve isolating the fluid from the distributing system which comprises a mushroom valve 4 being held onto seating 5 by a pivoted lever 6 abutting a temperature sensitive bulb 8 filled with a liquid eg alcohol acting against retaining yoke 9, and a displacing plate 10 causing a rotatable swash plate 19 which can be moved by spring loaded lever 15 and chain 17 Fig. 2 not shown to push the bulb 8 from its position and thus allow manual activation of the system. The bulb is made of glass or quartz which on automatic operation shatters and opens the valve.
Patent GB-1519382-A (GB)
Title: Sheet material stacking and transfer apparatus
IPC: B65H31/10
Filed: 1976-03-02
Abstract: 1519382 Stacking sheets PITNEY-BOWES Inc 2 March 1976 [16 June 1975] 08213/76 Heading B8R Completed stacks are transferred from the arms 40 to a vertically movable stacking tray 18 to the interleaved arms 78 of a transfer cradle 76 which is oscillatable on shaft 74 to remove the stack from the apparatus. During transfer additional sheets are collected on vanes 80 and 82 which are pivoted to the horizontal position. Sheets 20 leaving conveyer 28 are bowed by convex/concave roller pair 26, 24 and decelerated and guided on to the stack by a hinged deflector 30. An extension 36 of the deflector engages sensor 90 if the tray 18 is being lowered to fast for the slackening rate and the tray motor is stopped until sufficient sheets have been stacked to raise the deflector 30 from the sensor. As the tray 18 descends a cam follower 52 on the arms 40 of the tray engages a sloping portion (60, Fig. 3, not shown) of a pair of slotted cam plates causing the arms to be canted to match the angle of inclination of arms 78 to ensure smooth transfer of the stack to cradle 76 as the arms 40 descend between the arms 78.
Patent GB-622446-A (GB)
Title: Improvements in and relating to devices for packing small articles into containers
IPC: B65B67/04
Filed: 1947-03-26
Abstract: 622,446. Packeting articles. LAMSON ENGINEERING CO., Ltd., and BULLIVANT, A. J. March 26, 1947, No. 8232. [Class 94(i)] A device for packing small articles into envelopes or bags of paper or like material comprises a tray 3 carrying a spring- operated plunger device at its lower end, the upper end having flanges 6 acting as opening means for a bag placed thereover, the plunger 10 being held in its retracted position by catches 12 bearing against springs 13, released by the hand pressing on the arms 14 in moving the bag down over the tray, whereby the plunger is released to push the article into the bag. The retracted plunger 10 is enclosed by a plate 7 when the catches 12 engage in slots. The tray is pivoted at 4 on a support 5 so that it can be used at an angle.
Patent GB-876635-A (GB)
Title: Process for preparing a new antibiotic designated fi.1163
Filed: 1958-03-14
Abstract: <FORM:0876635/IV (b)/1> An antiobiotic designated antibiotic "F1.1163" is produced by the aerobic fermentation (preferably submerged) of an aqueous nutrient medium containing a source of carbon, nitrogen and inorganic salts with an antibiotic "F1.1163"-producing-strain of Streptomyces lucensis nov. spec.  A temperature of 25 to 35 DEG C. and duration of cultivation of 30 to 70 hours is used.  Suitable sources of (a) carbon are sucrose, dextrose and a polysaccharide such as dextrin (b) nitrogen are corn steep, casein, peptones, protein hydrolysates, amino acids, meat and vegetable extracts and ammonium sulphate, and (e) inorganic salts are sodium chloride, potassium mono- or dihydrogen phosphate and calcium carbonate.  The antibiotic is isolated by the solvent extraction of (a) whole broth (b) clarified broth or (c) mycelium, the pH of the broth first being adjusted to 7.0.  A water-immiscible or partially water-immiscible solvent is used, e.g. chloroform and especially n-butanol.  For the extraction of the mycelium anhydrous or aqueous Cl to 4 alcohols or aqueous acetone may be used.  The extracts are concentrated in vacuo and a non-solvent such as petroleum ether added to precipitate the antibiotic. Further purification may be obtained by dissolving the antibiotic in aqueous sodium bicarbonate solution or in an aqueous phosphate solution of pH 7.0, filtering and adjusting to pH 4.5 to precipitate the antibiotic.  Preferably the reactions are carried out in the presence of nitrogen, in the absence of light and at low temperatures.  The product so obtained may then be subjected to further recrystallisation from solvents.
Patent GB-589772-A (GB)
Title: Processes for producing derivatives of diphenylhexane
IPC: C07C37/055
Filed: 1945-04-04
Abstract: Derivatives of diphenyl hexane are obtained by treating a compound of the formula <FORM:0589772/IV/1> wherein R may be hydrogen, an alkyl, e.g. ethyl, propyl, isopropyl, butyl, propionyl, palmityl, lauryl, stearyl and benzyl, or an acyl group, and X is a halogen atom, with an agent which removes halogen alone or both hydrogen and halogen, e.g. sodium or calcium in solvents or hydrogen halide acceptors such as metallic hydroxides, metallic oxides, metallic carbonates, pyridine, piperidine, trimethylammonium hydroxide, aniline, dimethyl aniline, quinoline, sodium acetate and lead acetate.  In examples, 3 : 4-di-(p-hydroxyphenyl)-3 : 4-dibromohexane diacetate is treated with (1) a solution of potassium iodide in alcohol to produce trans-diethyl stilboestrol diacetate which is hydrolysed to the corresponding hydroxy compound with methanolic potassium hydroxide; (2) dry pyridine under nitrogen to produce the diacetate of 3 : 4 - di - (p - hydroxyphenyl) - hexadiene-2 : 4; (3) zinc dust and alcohol when dehalogenation and saponification occurs.  Subsequent esterification in pyridine produces cis-diethyl stilboestrol diacetate; and in example (4), 3 : 4-di-(p - amsyl) - 3 : 4 - dibromohexane treated with potassium iodide in acetone, or with zinc dust in alcohol, acetic acid, carbon tetrachloride or benzene produces heroestrol dimethyl ether.
Patent GB-395658-A (GB)
Title: Improved medicinal spray
IPC: A61M11/06
Filed: 1933-03-18
Abstract: 395,658. Medicinal sprayers. BURNET, E., 93, Harley Street, London. March 18, 1933, No. 8278. [Class 81 (ii).] In a medicinal sprayer of the type in which the spray is produced within a liquid container and issues through the mouth of the container, the mouth of the container a is invaginated and the tubes d, e by which the spray is produced extend into the invagination f . The container a is attached by suitable means to the rubber air bulb c. The container may be made of metal, vulcanite or artificial resin in two portions g, h, as shown in Fig. 3, screwed together.
Patent GB-1460883-A (GB)
IPC: G02B27/36
Filed: 1975-02-28
Abstract: 1460883 Optical instruments MALIES INSTRUMENTS Ltd 20 Oct 1975 [28 Feb 1975] 8395/75 Heading G2J An instrument e.g. a microscope or telescope comprises, for measuring an image of the object, two movable elements 5, 7 each having a transparent region and a partially transparent region (e.g. formed by vacuum deposition) with a boundary therebetween. The boundaries are movable e.g. by knobs 11, 12 and means e.g. a digital counter are provided for determining the separation of the boundaries. Fig. 1 shows the apparatus inside a micrometer box I rotatable by means of bearing 13 about the optical axis of the instrument.
Patent GB-251413-A (GB)
Title: Improvements in and relating to mosquito guards for port lights, windows and the like openings
IPC: B63B19/02
Filed: 1925-03-30
Abstract: 251,413. Thomas, R. E., and Billetop, T. C. March 30, 1925. Fly screens. - A guard for a, port light, window, &c. to prevent pilfering and entrance of insects comprises a frame A detachably fitted in the window &c. opening and a sheet of copper gauze or netting C secured in a rounded circumferential recess in the frame by means of a split spring ring B. Spring clips may be attached to the frame to hold it in position when the port light is open. the frame A is cut away interiorly at one point a<4> to permit access of a tool for withdrawal of the spring ring. When applied to rectangular openings a telescopic spring frame as shown on Fig. 9 is used to clamp the gauze in the frame, spring-pressed spigots b<2>, separate from or integral with the frame, being held in tubular ends' b<4>.
Patent GB-701674-A (GB)
Title: Vegetable cutter
Inventor: HANSON MAYNARD PERLIN
IPC: A47J43/25
Filed: 1952-04-02
Abstract: 701,674. Slicing potatoes &c. HANSON, M. P. April 2, 1952, No. 8463/52. Class 5 (1) Potatoes &c. 29 in a hopper 16 are sliced by a spiral knife 24 fixed in a slot 23 in a bottom rotary disc 18, the slices passing through the slot to a base 14 having a discharge opening 27 to which the slices are swept by a spiral arm 26 on the underside of the disc 18. A radial partition 17 in the hopper prevents rotation of the potatoes. The slices fall into a receptacle 27a, Fig. 1 (not shown), placed under the discharge opening 27 and accommodated in a partitioned-off recess 10a in the lower casing 10 which contains the drive motor and gear box. A plate 28 presses on the top of the potatoes. Fig. 4 shows a view of the rotary disc from underneath.
Patent GB-330895-A (GB)
Title: Improvements in the manufacture and production of lacquers, priming compositions and the like
IPC: C09D101/26
Filed: 1929-03-15
Abstract: 330,895. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 15, 1929. Adhesives.-Cementing compositions are prepared by incorporating cellulose ethers such as ethyl cellulose, ethyl butyl cellulose and benzyl cellulose with resinous condensation products from polybasic carboxylic acids and such esters of polyhydric alcohols as contain at least one free hydroxyl group, which swell or dissolve in benzene hydrocarbons, and with organic solvents. Examples of suitable polybasic acids are phthalic, succinic, maleic, diglycollic and salicyl-acetic acids or mixtures or derivatives thereof, for example phthalic anhydride and chlorphthalic acids. Examples of polyhydric alcohols are glycerol, sorbitol, pentaerythritol, glycols, and the hydroxyalkyl ethers of these alcohols. Suitable esters are the partial esters of these alcohols with acids such as abietic, linoleic, ricinoleic, naphthenic, lauric and china wood oil acids. The acids of drying oils such as linoleic acid may be oxidised or polymerized before or after esterification. The resinous condensation products may be obtained by treatment of the esters of the polyhydric alcohols with polybasic, acids or their anhydrides drides orby conversion of the polyhydric alcohols with polybasic acids or their anyhydrides with the simultaneous or subsequent action of the components of the esters. The quantity of the resinous condensation product may be from 10 per cent to 100 per cent by weight of the cellulose ether. Examples of suitable solvents are benzene hydrocarbons and mixtures thereof with esters, ketones, benzine hydrocarbons, alcohols or dioxane. Softening agents, drying oils, driers, natural or artificial resins such as colophony, condensation products of cyclic ketones and coumarone resins, cellulose esters, soluble or insoluble colouring materials and fillers may be added. In one example 100 parts of a benzene-soluble ethyl cellulose and 20 to 50 parts of a resinous condensation product from 3-5 molecular proportions of phthalic acid with such a proportion of a linoleic acid glycerol ester containing one or two non-esterified hydroxyl groups as may be obtained, e.g. from 3 molecular proportion glycerol and one molecular proportion of linoleic acid, are dissolved in a mixture of 700 parts benzene, 100 parts toluene and 50 parts ethyl alcohol. Specifications 303,915 and 320,041, [both in Class 95, Paints &c.], are referred to.
Patent GB-1146971-A (GB)
Title: Improvements in or relating to photographic copying machines
Inventor: JONES HAROLD GEORGE
IPC: G03D3/13
Filed: 1965-03-01
Abstract: 1,146,971. Controlling liquid levels. COPYCAT Ltd. June 1, 1966 [March 1, 1965; April 27, 1965], Nos. 8701/65 and 17649/65. Heading G1H. [Also in Divisions F1, G2 and G3] A liquid container comprises a bottle 1 provided with a filling aperture (not shown) and connected with a tank 2 formed in the top wall of the bottle. A liquid transfer tube 3 connects the tank and the interior of the bottle, and there is an air duct (4) Fig. 1 (not shown) into the bottle, which duct is connected to an air pump of a photographic processing machine (see Division G2-G3) in which the container is used. To prevent overfilling, electrodes 5, 6 are engaged by the liquid pumped from the bottle into the tank 2 when it reaches the level L. This completes a circuit and the air pump is cut out until the liquid level falls to break the circuit between the electrodes. The electrical conductivity of the liquid increases with continued use, and a warning device can be arranged to operate when the electrical resistance between the electrodes reaches a predetermined limit, thus notifying an operator that the liquid container should be replaced by a fresh one.
Patent GB-492679-A (GB)
Title: Improvements in or relating to vulcanising and similar presses
IPC: B29D30/06
Filed: 1937-03-25
Abstract: 492,679. Vulcanizing-presses. MACBETH,C. March 25, 1937, No. 8757. [Class 70] In the vulcanizing-presses described in Specifications 364,721 and 404,999, the fluidoperated ram is replaced by screw and nut mechanism operated by a reversible electric motor. The Figure shows the invention as applied to the press described in Specification 404,999. A gear-box 24 is journalled at 25 to the toggle link 10, and houses bearings 29 for a nut 27 with worm-wheel 28 meshing with a worm 30 driven by a belt 31 by an electric motor 32 mounted on the gear-box 24. The nut 27 engages a screw 26 trunnioned at 25a to the front of the upper mould-member 1. On expulsion of the screw, the link 9 is swung about its journal 16 to open the press. In the press described in Specification 364,721, the screw and nut are underslung in the position occupied by the ram and cylinder. The belt drive may he replaced by direct gearing.
Patent GB-922223-A (GB)
Title: Improvements relating to the control of tap-changers for electric transformers
Inventor: PEEL ROBERT FREDERICK CRESWELL
IPC: H01F29/04
Filed: 1959-03-13
Abstract: 922,223. Transformer arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 11, 1960 [March 13, 1959], No. 8853/59. Class 38 (4). The arrangement described in Specification 679,918, to ensure that a transformer tap changer moves only one step at a time, is modified by replacing the two separate control contactors with a single unit C comprising contacts and associated coils CO, CE (for odd and even number steps respectively) which are energized through a change-over switch S actuated by the tap changer, a pulse through the appropriate coil being sufficient to change the condition of all the contacts. As shown, a tap change is initiated by push PBR (raise) or PBL (lower) which energizes a reversible tap-changing motor M through contacts SO and COb, and opens PBRa or PBLa. At the completion of the change the switch S is moved to SE, breaking the motor circuit and preparing a circuit for energizing CE. A further step cannot take place until the push is released, thus closing PBRa or PBLa to energize CE, which closes CEb. The coils CO, CE have selfopening contacts COa, CEa, the armatures being latched-in. A contact X, actuated by any associated equipment, may be used to coordinate that equipment with the tap changer Circuits are described (Figs. 2 . . . 4, not shown), which ensure that a tap change, once initiated, is completed although the push be released, or, if the supply fails the operation would continue automatically upon its resumption. Arrangements are also described (Figs. 5 and 6, not shown), whereby a number of tap changers may operate either concurrently or in sequence by the initiation of a step at one only; interlocking circuits ensure that all the changers have operated before a further step can be made.
Patent GB-1333695-A (GB)
Title: Machines for producing moulds consisting of identical mould parts that are lined up against each other
IPC: B22C11/10
Filed: 1972-02-25
Abstract: 1333695 Foundry moulding machines DANSK INDUSTRI SYNDIKAT AS 25 Feb 1972 [4 March 1971] 8909/72 Heading B3F A foundry moulding machine for producing "flaskless" sand moulds 11 comprises a stationary vertical moulding chamber 2, a guideway 10 to receive a row of moulds 11 aligned for pouring and a means for removing the moulds from the chamber 2 and placing them on the guideway 10. Sand is blown into the chamber 2 and compressed by lowering an upper pattern plate 4. The mould (12) so formed is ejected by concurrent movement of upper 4 and lower 6 pattern plates until the upper plate 4 reaches the lower end of chamber 2. The lower pattern plate 6 moves further downwardly while the mould (12) is guided by a member 13. The member 13 and lower pattern plate 6 are pivoted at 9 so that the member 13 lies flush with a guideway 10, see Fig. 4. To move the moulds 12 on to the guideway 10, the lower pattern plate 6 is forced leftwards by a fluid motor 7, 8.