baber/WOPTO huggingface dataset:
Patent GB-700820-A (GB)
Title: Improvements in twist drills
Inventor: SALT WILLIAM
IPC: B23B51/02
Filed: 1951-05-28
Abstract: 700,820. Making drills. MATHERAN PRODUCTS, Ltd. May 28, 1952 [May 28, 1951], No. 12414/51. Classes 83 (2) and 83 (3) Drills.-A twist drill comprises a cutting tip 15 inserted in a diagonal slot in the end of the shank 10 which has a forward portion, of substantially oblong cross-section, in which the flutes decrease in helical angle towards the tip, the lands 18, 19 engaging the tip on each side of the axis. In making the drill, flat or slightly concave surfaces are milled on a blank which is then twisted in a cold state to form the flutes. At the forward end a substantial part of the blank is gripped so that no twist is imparted to it. The slot is then milled or ground and the cutting tip 15 brazed therein.
Patent GB-1241767-A (GB)
Title: A device for tuning a radio receiver to a desired operating frequency
Inventor: TITOV VLADIMIR PETROVICH
IPC: H03J1/14
Filed: 1969-03-10
Abstract: 1,241,767. Tuning drive arrangements. SARAPULSKY ORDENA LENINA I ORDENA TRUDOVOGO KRASNOGO ZNAMENI RADIOZAVOD IMENI ORDZHONIKIDZE. 10 March, 1969, No. 12443/69. Heading H3Q. A device for tuning a radio receiver has a variable capacitor 2 with a shaft 3 which can be rotated to alter its capacitance and a gear transmission comprising an internal gear 8 fixed to the shaft 3 of the variable capacitor, a sun gear 6 mounted on a shaft 4 coaxial with the shaft 3 of the capacitor and a planet gear 11, 12 which is in mesh with the sun gear 6 and the internal gear 8 and which is mounted on a pin 10 projecting from a wall 9 of the capacitor and passing through a slot in the internal gear 8. The slot allows 180 degrees of rotation of the internal gear 8 which is provided with a tuning dial 14. An index 15 on the control knob 7 co-operates with this dial 14, the knob 7 being located on flats formed on the sun gear 6. The planet gear-wheels 11, 12 are displaced relative to each other by a spring 13 which eliminates backlash. The tuning device may be used in miniature V.H.F. and U.H.F. radio receivers. Slots 2 mount the capacitor on a plate of the receiver.
Patent GB-1142143-A (GB)
Title: Piperidine-butyrophenones and a process for their production
Inventor: HERNESTAM SVEN ERIK HARRY
IPC: C07D295/108
Filed: 1965-03-24
Abstract: 1,142,143. Piperidine derivatives. A. B. FERROSAN. 21 March, 1966 [24 March, 1965], No. 12449/65. Heading C2C. Novel piperidine derivatives of the formula wherein R 1  represents a C 2-5  straight or branched alkyl group and R 2  represents a hydrogen or a fluorine atom, and their acid addition salts are obtained by reacting 4-alkyl piperidines with #-halogeno-butyrophenones or #-halogeno-#- fluoro-butyro-phenones at an elevated temperature and in the presence of an acid binding agent and, if desired, reacting the products with acids. Therapeutic compositions, useful as local anaesthetics, anticonvulsants, psycho-sedatives, analgetics or antidepressives, contain as active ingredient the above piperidine derivatives. The composition may be in a form suitable for oral application.
Patent GB-690527-A (GB)
Title: Improvements in or relating to partial reduction of iron ore
IPC: C22B1/14
Filed: 1951-05-28
Abstract: 690,527. Treating iron ore to facilitate concentration. STANDARD OIL DEVELOPMENT CO. May 28, 1951 [Sept. 9, 1950], No. 12481/51. Class 82(i) A method of reducing a lean subdivided oxidic ore containing Fe 2 O 3  comprises mixing subdivided carbonaceous material such as low grade coal or petroleum pitch with the ore, forming a suspension of the mixture in a gas containing free oxygen, maintaining the suspension at a temperature sufficiently high, e.g. 1200‹F-2500‹F to cause formation of a relatively large amount of carbon dioxide and a relatively small duantity of carbon monoxide, permitting sufficient contact between the thusformed carbon monoxide and the ore to convert Fe 2 O 3  into Fe 3 O 4  and separating the ore from the gas. The Fe 3 O 4  may then be separated magnetically from the ore. In the apparatus shown in Fig. 1 low-grade finely-divided coal from hopper ,1 is fed to zone A of vessel 3 in which it is fluidized and preheated by gases rising through the vessel. Finely-divided ore from hopper 5 is similarly treated in zone B. Ore and coal from their respective zones are fed by pipes 14 and 12 to riser 13 in which they meet a stream of preheated air.' The reacting materials are carried into the lower part C of vessel 3 where the reaction is completed, the temperature of this zone being controlled by feeding directly some ore from pipe 14 by pipe 14a. Gas and ore are separated in zone C, the gases rising through vessel 3 and ore passing by pipe 15. to a heat exchanger 10 in which steam is raised in coil 10a and the air supply is preheated in coil lOb. The ore then passes to a magnetic separater 20.
Patent GB-203366-A (GB)
Title: Improvements in the construction of floats for aeroplanes
IPC: B64C35/00
Filed: 1923-02-03
Abstract: 203,366. English Electric Co., Ltd., and Manning, W. 0. Feb. 3, 1923. Floats for aerial machines.-Wing-tip floats of seaplanes are of rhomboidal section with the upper parts formed by sides inclined inwards to meet at a line approximately over the centre line of the float. The forward end 7 of the float is curved upwards and the sides are represented by the struts 8. The bottom sides 10 are inclined upwards from the central line 11 of the float. The section of the float facilitates the employment of circular rings as stiffening elements.
Patent GB-748263-A (GB)
Title: Improvements in and relating to fractionation or separation of cyclopentanophenanthrene and kindred compounds
Inventor: ABRAHAM EDWARD PENLEY
IPC: C12P35/00
Filed: 1951-05-29
Abstract: Cephalosporins are fractionated or separated from a medium in which cephalosporium microorganisms have been cultivated by first separating the impurities, followed by the step of dissolving the material containing the derivatives in a relatively high polar solvent and then reducing the polarity of the solution by dilution with a less polar solvent.  The initial separation may be effected as a direct extraction, e.g. with an ester such as butyl acetate or by adsorption on a solid adsorbent followed by elution from the adsorbent, e.g. by a ketone or alcohol having not more than six carbon atoms to the molecule.  As high polar solvents there may be used benzene, toluene, di-isopropyl ether, diethyl ether or di-isopropyl etheracetone mixture and when di-isopropyl ether is used the diluent may be petroleum ether, boiling-point 100 DEG -120 DEG C.  By using a diluent of higher boiling-point than the original solvent the polarity of the solution may be still further reduced by distilling off part of the original solvent.  As a third stage of purification the cephalosporins may be subjected to one direct distribution or counter-current distribution between an aqueous phase and a less polar phase containing organic solvents. Finally the compounds may be subjected to chromatographic adsorption.
Patent GB-1081143-A (GB)
Title: Method of and apparatus for coating metal articles
IPC: B22D19/00
Filed: 1965-03-25
Abstract: In a method of wetting and coating an article with molten metal the article is located in a mould 18 into which molten metal is poured, the article is then subjected to torsional vibrations to effect wetting and coating of the article by the molten metal so as to produce a secure bond between the article and metal when solidified. In the embodiment described a cast iron brake drum lining is attached to one end of a shaft and is located in the mould.  An air operated hoop type torsional vibrator is attached to the other end of the shaft so that when molten metal (Al or Al alloy) is poured into the mould and the vibrator actuated, wetting and subsequent bonding occurs between the liner and the poured metal.  The composite article produced is a brake drum of Al, or Al alloy with a bonded cast iron liner.  The mould may be heated to control the solidification of the Al.
Patent GB-568369-A (GB)
Title: Improvements in or relating to the preparation of histidine in aqueous solution or as di-hydrochloride
IPC: C07D233/64
Filed: 1943-08-05
Abstract: Histidine is prepared from protein hydrolysates, especially such as are of low histidine content, by adsorption on an adsorbing-agent, the compound then being eluted by washing with an alkaline solution, preferably at pH 10.0-10.5 and, if desired, isolated by crystallisation as histidine dihydrochloride.  In Examples: (1) cotton seed protein hydrolysate of pH 6 is diluted with water and stirred at 55 DEG  C. for 30 minutes with activated fuller's earth, and the residue is filtered off and washed with cold water followed by suspension in water and treatment with slaked lime to adjust the pH to 10.0-10.5, the mixture being stirred for 20 minutes at room temperature prior to filtration and washing of the residue, elimination of lime from the filtrate by carbon dioxide and concentration in vacuo; excess hydrochloric acid may then be removed by filtration and the syrup, further concentrated, is dissolved in a small volume of concentrated hydrochloric acid, from which crystalline histidine dihydrochloride is precipitated by adding acetone; the absorbent may be regenerated by stirring, at 30-40 DEG C. for about 30 minutes, an aqueous suspension acidified with hydrochloric acid, and ultimately washing the residue with water; (2) sunflower seed protein hydrolysate of pH 6 is treated (a) substantially as in (1); (b) after rendering alkaline to pH 10.5, stirring, filtering and washing the residue as in (1), activated carbon is added to the filtrate at about 70 DEG  C. whilst maintaining a pH of 10.5, the mixture is filtered, the filtrate is neutralized by carbon dioxide and the liquor concentrated in vacuo at 40 DEG  C., prior to filtration and addition of conc-hydrochloric acid to the filtrate, further evaporation and precipitation of histidine dihydrochloride from the syrup by adding acetone daily over one week and refrigerating, the mother liquor being treated similarly after concentration.
Patent GB-1184073-A (GB)
Title: Improvements in or relating to Apparatus for Detecting and Measuring Mass Flow
Inventor: GOSBELL PETER
IPC: G01F1/76
Filed: 1967-07-14
Abstract: 1,184,073. Measuring mass flow electrically. FLOUR MILLING & BAKING RESEARCH ASSOCIATION. Aug. 14, 1968 [July 14, 1967; March 15, 1968], Nos. 32576/67 and 12682/68. Heading G1N. Means for detecting or measuring the flow of disperse, particulate material in a conduit comprises a grid member mounted transversely in the conduit, a Piezo-electric transducer developing an electrical signal in response to vibration of the grid produced by impact thereon of the flowing material and circuit means responsive to the signal so as to provide an indication related to the flow. Fig. 1 shows a tubular conduit 1 within which a particulate material is lifted upwards as a suspension in air and flows through apertures in grid member 3. Resilient plugs 4, 5 are inserted in the conduit wall to support the grid. A vibrationresponsive device produces an electrical output related to the vibration of wire 6 connecting it to the grid. This output may be rectified and displayed as a measure of instantaneous mass flow or integrating and/or summing circuits used to measure mean or total mass flow. Other grid geometrics for use with one or a plurality of transducers are described with reference to Figs. 3-5 (not shown).
Patent GB-552450-A (GB)
Title: Improvements relating to wipers for wind screens or other windows
IPC: B60S1/44
Filed: 1941-10-06
Abstract: 552,450. Wind-screen wipers &c. LUCAS, Ltd., J., and PURDEN, R. H. Oct. 6, 1941, No. 12867. [Class 138 (i)] Relates to wipers of the rotary arm type for cleaning the wind-screens or other windows of air or water craft or land vehicles. The wiper p is arranged to extend, normally, radially or diametrically across the region bounded by a rotary annular member carrying the wiper. The member b. is rotated by a pinion k. If it is desired to park the wiper in out-of-the-way position when not in use, the annular member is formed in two parts a, b having a lost motion connection formed by a pair of pins t engaging a slot. The wiper is pivoted at s to the member a, and is, normally, held against a stop u by the right-hand pin t. When the drive of the pinion k is stopped a slight reverse movement of the member b swings the pins t to the other end of their slot, causing the wiper to swing to parked position.
Patent GB-663069-A (GB)
Title: Improvements in apparatus for regulating and distributing fluid under pressure to a motor system
IPC: F15B11/02
Filed: 1948-05-12
Abstract: 663,069. Valves. SERVO-FREIN DEWANDRE SOC. ANON. May 12, 1948 [May 30, 1947]. No. 12992/48. Class 135 In apparatus for regulating and distributing fluid under pressure to a motor system, particularly applicable to the callender rollers of a paper mill, a regulator maintains at a constant, predetermined and adjustable pressure the fluid distributed by twin three-way valves actuated simultaneously in opposite directions by the same operating member. The inlet of compressed air from the reservoir 2 to the regulator 1 is controlled by the spring- loaded valve 14 actuated by the stem 16 of the spring-loaded exhaust valve 12 which seats on the end of a spring- loaded hollow pushpiece 26 carried by the diaphragm 10. The push-piece is loaded in the opposite direction by the spring 21 acting through the lever 19 on the lever 23, the loading being adjustable by the handwheel 29 and rod 28 acting on the lever 23. Gauges 30<SP>1</SP>, 30 indicate the pressure in the reservoir and the pressure in the regulator respectively the latter being led by the pipe 49 to two interconnected three-way valves 3, 4, actuated simultaneously in opposite directions by the cams 45, 45<SP>1</SP> on the operating shaft 46. Each threeway valve controls the supply and exhaust of fluid to one side of the motor piston 6<SP>1</SP> and comprises a spring- loaded inlet valve 32 seating on a ported partition 33 and a spring-loaded exhaust valve 38. When the hollow push-piece 44 is moved inwards against the spring 48 by the cam 45, the exhaust is closed by the valve 38 seating on the end of the push-piece. Further inward movement allows the stem 39 of the exhaust valve to unseat the inlet valve. In the application to the callender rollers, two regulators and two pairs of three-way valves operated simultaneously by a single cam-shaft are used to control two motors, the regulator and three-way valves being housed in a protective casing provided with a panel on which are mounted the pressure gauges, operating member and adjusting hand-wheels.
Patent GB-596248-A (GB)
Title: Carbon pile electric regulator
IPC: H02P9/22
Filed: 1945-05-25
Abstract: 596,248. Automatic control systems for electric supply circuits. BENDIX AVIATION CORPORATION. May 25, 1945, No. 13174. Convention date, April 4, 1944. [Class 38 (iv)] [Also in Group XXXVI] In a carbon pile regulator, in which the pile is subjected to pressure by a spring-loaded armature controlled by an electromagnet, a stop integral with the armature engages with the electromagnet core to limit the armature movement and hence also the pile pressure. In Fig. 1 the cylindrical electromagnet E influences the armature 20, backing plate 23 and boss 22, against the action of leaf spring 21, to regulate the pressure on pile C. Core 16 with central hole 17 is screwed into the base 11 of electromagnet E and surrounds rod 25, screwed into armature 20 at 26. The lower end of the rod carries nut 27, which engages with 16 at the limiting position. In Fig. 2, not shown, to render the stop action more gradual, a coil spring is disposed round the rod 25 between nut 27 and core 16.
Patent GB-642729-A (GB)
Title: System for storing and retransmitting telegrams in automatic teleprinter exchanges
IPC: H04L12/54
Filed: 1947-05-16
Abstract: 642,729. Telegraph exchange systems. STANDARD TELEPHONES & CABLES, Ltd. May 16, 1947, No. 13232. Convention date, May 27, 1946. [Class 40 (iii)] In an automatic telegraph exchange in which calls are received on a register and for some lines message storage facilities are provided, if such a line is found to be busy the register releases the partially established connection and establishes instead a connection to a free recording apparatus which does not involve the apparatus just released. A call on an incoming junction IJ seizes a free register REG1 via a switch GF, the calling code being stored on a code storage circuit CS and the register controlling in a known manner the selection of a wanted junction OJ. If the desired connection is " busy," the register releases any switches already seized and completes instead a connection to a re-perforator RP, the code storage circuit CS and register REG1 transmitting thereto the code designation of the called station, which is preferably printed beside the perforations. The register next transmits a " Who are you signal to the calling station, the reply being recorded by the' re-perforator RP. The register then connects the re-perforator RP over a finder PGF to the incoming line IJ and transmits to the calling station a message indicating that the desired connection is not free, but that the message may be sent and stored for subsequent onward transmission. The register then releases and the calling subscriber can send his message in the normal wayover the finder PGF for recording on the re-perforator RP. An operator's panel is provided, having lamps STL which indicate for what outlets messages have been stored and lamps DFL showing what outlets are free. When an outlet for which a message is stored becomes free, the operator connects an automatic sender AS to the free outlet, the message tape from the re-perforator feeding into the sender AS. Since the calling station's identity is recorded on the tape, the operator can inform that station that the stored message has now been cleared.
Patent GB-132706-A (GB)
IPC: B61G1/06
Abstract: 132,706. Thorpe, A. N., and Beecroft, E. Jan. 24, 1919. Couplings, automatic.-Relates to automatic couplings for railway and like vehicles of the type in which a pivoted hook A on one vehicle is adapted to engage an horizontal pin Y on the other vehicle, and particularly to buffer couplings of this type. According to the invention, for the purpose of taking up the slack in the coupling automatically, the coupling-hook A is arranged to slide in a bracket casting C pivoted at X to the vehicle or buffer and having a cam-surface C<2> which co-operates with a cam-surface D on a weighted lever D<1> abutting against a nut B on the rear of the hook A so as to cause rearward movement of the hook A and consequent tightening of the coupling when the weighted lever is made to fall. The actuation of the lever D<1> is effected by means of a double-armed trip lever, one arm E of which engages the lever D', while the other arm E<1> engages a fixed part of the vehicle or buffer G. When the two vehicles approach, the casting C rocks on its pivot X, and the hook A engages the pin Y, the forward movement of the casting at the same time causing the arm E<1> of the trip-lever to be pressed backwards and the arm E to knock over the lever D', which has previously been raised to a substantially vertical position. uncoupling is effected by again raising the lever D<1> to its upper position.
Patent GB-942339-A (GB)
Title: Improvements in vtol aircraft
IPC: B64C29/00
Filed: 1961-04-13
Abstract: 942,339. V.T.O.L. aircraft. GENERAL ELECTRIC CO. April 13, 1961 [April 15, 1960], No. 13314/61. Heading B7G. A V.T.O.L. aircraft having a duct in each wing with an air inlet in the leading edge, a louvred outlet in the lower surface of the wing, and a driven fan disposed adjacent the downstream end, has an additional louvred air inlet in the top surface of the wing, and a recess in each lower wing surface extending rearwardly from the duct outlet. Each wing 11 is provided with a duct 13 having a forwardly facing inlet 14 in the wing leading edge, an inlet 15 having louvres 16 in the wing upper surface, an outlet having louvres 18 in the lower surface, and a fan 19 driven through a linkage 24 (either a duct directing exhaust gases to tip turbine blades, or a hydraulic or mechanical linkage to gearing mechanism) from driving means 22 which may be two gas turbine engines 23 supplied with air through a scoop 26. Fig. 3 shows the aircraft in vertical or hovering flight with louvres 16 opened to supply air to the fan 19 which directs it downwardly through opened louvres 18. The exhaust gases from engines 23 may also be directed downwardly to provide additional lift. Mounted in the nose of the aircraft and driven from engines 23 by linkage 31, is a fan 30 which is used to control pitching of the aircraft and give additional lift. When the aircraft is to perform horizontal flight, louvres 16, 29 are turned to close inlet 15 and the outlet for fan 30, and louvres 18 are set to direct rearwardly the output from fans 19 (Fig. 4, not shown). In this condition recessed portions 17 provide a way for the discharged air and serve to create an air wall which completes the normal aerofoil shape of the wings thus avoiding distortion of air flow. In the tail of the aircraft reaction control means is provided for controlling yaw. Nozzles 35, one on each side of the tail, may be fed with compressed air or with exhaust gases from engines 23, and are selectively controlled by a single valve member (Fig. 5, not shown).
Patent GB-1208072-A (GB)
Title: Improvements in storage tanks
Inventor: ROWLEY WALTER ALAN
IPC: B65D90/02
Filed: 1968-03-19
Abstract: 1,208,072. Bulk liquid storage tanks. WHESSOE Ltd. 22 Jan., 1969 [19 March, 1968], No. 13321/68. Heading E1T. A storage vessel for liquids comprises two shell walls of different diameters disposed one within the other and attached to a common base, the outer shell wall being of less height than that of the inner shell wall and tie members interconnecting said walls to resist external landing on the lower part of the inner shell wall which occurs when the level therein falls below that in the annular outer tank. In a modification the tie members are replaced by at least one circumferentially extending stiffening member disposed around the inner shell wall. For minor details of tie-or stiffening members to-gether with their positioning the Specification should be referred to.
Patent GB-495395-A (GB)
Title: Process for the manufacture of acid dyestuffs
IPC: C09B23/16
Filed: 1937-05-11
Abstract: Acid dyestuffs are prepared by sulphonating the condensation products of aromatic o-diamines, one amino group of which is primary and the other primary or secondary with o-diketones.  In examples, isatin is condensed with the following o-diamines and the products sulphonated: 1-aminocarbazol, 2-aminodiphenylamine, 4 - nitro - 1 : 2 - phenylenediamine and the reduction product of 2 : 4-dinitro - 3 - oxyethylamino - 41 - hydroxydiphenylamine.  The use of halogenated isatins, naphthisatin and 4-ethoxy-21-aminodiphenylamine is mentioned.  The dyestuffs dye wool or animal fibres red to brown shades.  Samples have been furnished under Sect. 2 (5) of products obtained by sulphonating condensation products prepared from the following pairs of components: (1) diketodihydro-2 : 1-naphthothiophen and 1-aminocarbazol; (2) isatin and 2 : 3-diaminophenazine dihydrochloride; (3) isatin and reduced 4-chlor-21-nitrodiphenylamine (prepared from o-nitrochlorbenzene and 4-chloraniline).