baber/WOPTO huggingface dataset:
Patent GB-717243-A (GB)
Title: Improvements in compressors driven by turbines
IPC: F04D25/04
Filed: 1951-10-03
Abstract: 717,243. Elastic-fluid. turbines; centrifugal compressors. AKTIEBOLAGET GOTAVERKEN. Oct. 3, 1951 [Oct. 7, 1950], No. 23091/51. Classes 110(1) and 110(3) In a turbine-compressor unit the turbine and compressor casings are constructed as an integral unit which is divided in a plane through the axis of the shaft and comprises a turbine covering part, a compressor covering part and a central part 8 therebetween having a yielding portion 9 permitting axial displacement between said turbine and compressor covering parts. Specification 370,987 is referred to.
Patent GB-615371-A (GB)
Title: Improvements in chairs for babies
IPC: A47D1/10
Filed: 1946-08-02
Abstract: 615,371. Nursery seats. HITCHIN, J. E. Aug. 2, 1946, No. 23108. [Class 52 (ii)] A collapsable chair for children wherein the back, seat, arms, and front struts are pivoted to form a four-bar linkage is provided with diagonally-arranged metal links 16 to maintain the device in its erected condition, one end of each link being detachably secured by a thumbscrew 15. Securing straps 17, 18 are provided which can also serve to hold the parts when folded and to form a carrying handle.
Patent GB-264708-A (GB)
Title: Improvements in apparatus for the manufacture of artificial silk
IPC: D01D5/04
Filed: 1925-09-18
Abstract: 264,708. Ellis, G. B., (Soc. pour la Fabrication de la Soie Rhodiaseta). Sept. 18, 1925. Apparatus for making filaments.- In order to control the temperature conditions at the spinning dies while maintaining in this region an atmosphere relatively rich in solvent vapours, for the purposes of controlling the section and formation of the filaments as indicated in Specifications 236,393, 238,842 and 248,696, a portion of the atmosphere is withdrawn at an intermediate region f of the cell and is returned to the region h of the spinning dies without any reduction in the proportion of solvent vapours carried by the atmosphere, but permissibly after passage through a temperature-controlling device such as a heater; there is thus created a closed auxiliary circuit of the gaseous medium. Another portion of the atmosphere is withdrawn at a suitable point, for example at the point k, for the recuperation of the solvents, fresh atmosphere being admitted to compensate for that so withdrawn. There may be arranged a separate auxiliary circuit for each cell the flow of the gaseous medium being produced by individual propelling devices or by varying the density of the medium, as by heating the external circuit. Alternatively, in the case of a group of cells, the withdrawn atmosphere from the individual cells may be collected in a common collector e, and after passing through a propelling device may be delivered to a second collector g from which the gaseous medium is distributed to the cells, equality of flow in the several cells being attained by the means described in Specification 233,384. Preferably, the cells a are of the minimum diameter, are either cylindrical or tapered towards the outlet, and are provided at their lower ends with funnel-shaped members d as described in Specification 218,913, these members having at their apices an outlet opening for the filaments, such opening also constituting the inlet for the gaseous medium. The connections f, h, k for the inlet and outlet of the gaseous medium are preferably of annular form, as described in Specification 233,384: and the lower portions of the cells are provided with heating devices c preferably arranged in the manner described in Specification 233,384. Openings may he made in the walls of the cells to permit a free exchange of heat between the atmosphere in the cells and the actual heating elements.
Patent GB-245490-A (GB)
Title: Improvements relating to pumps for liquids or hydraulic motors
IPC: F04B1/14
Filed: 1924-10-03
Abstract: 245,490. Rusdell, W. J. Oct. 3, 1924. Cam-actuated pumps; springs.-In reciprocating pumps or hydraulic motors having two or more pistons, buckets, or rams operated by cams, such as are described in Specification 176,067, the return stroke of each piston &c. b or c is caused partly by the power stroke of the other piston or pistons, as by a lever l, and partly by another cam or cams n acting in conjunction with the power stroke. The cam n moves the pivot m of the lever l so as to correct the difference in motion between the two pistons. A spring q or other resilient device may be interposed between the cam n and the pivot m to neutralize small irregularities and keep all the moving parts in contact. In the form shown in Fig. 7, the pistons of three pumps x, y, z are actuated by an anvil arm b<1>, and a central cam v carried by the cam b' operates a lever v<2> connected to a rocking plate w engaging the ends of the piston rods. In another form, the lever l engages the piston rods at their lower ends. The invention is applicable also to pumps of the kind described in Specification 193,613 having pistons with angular or curvilinear motion.
Patent GB-146755-A (GB)
Title: Improvements in or relating to fishing-rods
IPC: A01K87/00
Filed: 1919-09-25
Abstract: 146,755. Beaumont, F. P. Sept. 25, 1919. Rods and rod fittings.-A hollow fishing-rod A is made of a number of tubular sections, each of which consists of two or more longitudinal sections of cane or wood. On the butt section a little above the position of the reel a guide-piece B of bone or other material is provided, and a bell-mouthed ferrule D, preferably of aluminium, is fitted to the extreme tip of the top section. The. line C is threaded through the rod from the reel by means of a thin wire needle of somewhat greater length than any one section and provided with a small knob at the leading-in end and an eye at the other end.
Patent GB-223712-A (GB)
Title: Improvements in body supports or pads for motor cyclists
IPC: B62J1/26
Filed: 1923-09-22
Abstract: 223,712. Petrie, W. C. Sept. 22, 1923. Body supports.-A support or pad for partly supporting the body of a motor-cycle racer when in an approximately horizontal position over the tank comprises a cushion D resting on the top of the tank and fastened in position by means of side and front flaps fitted with eyelet holes 3 &c. The cushion may consist of a closed bag of rubber-treated fabric inflated with air, or provided with a rubber air-bag or a filling of spongy rubber, hair, &c. The side flaps are provided with knee-grips K having flexible bristles. The flaps consist of extensions of the base of the cushion, reinforced by cemented folds along the edges, or by additional pieces of fabric cemented to the extensions.
Patent GB-493973-A (GB)
Title: Improvements in or relating to laminated interadherent glass sheets and the like
IPC: B32B17/10
Filed: 1937-08-31
Abstract: 493,973. Safety glass. DOUGAN, W. C., and BARRETT, DOUGAN, & CO., Ltd. Aug. 31, 1937, No. 23775. [Class 140] An assembly of sheets of glass or the like with one or more strengthening sheets of cellulose derivative material or strengthening sheets wholly or partially composed of resinous products, is prepared by bringing together the sheets, the uniting faces of which have been treated with a solvent for the strengthening material or with a resinous cementing agent, and expressing air and surplus liquid from between the uniting faces of the sheets, and the assembly is then processed to cause the individual sheets to adhere permanently to one another. In effecting this permanent adhesion, the assembly is held together in a clamp or the like, the pressure so applied being sufficient to maintain the edge alignment of the sheets during subsequent processing, and the clamp and its contained assembly being enclosed in or transferred to a closed chamber, which is then exhausted. Then compressed fluid is admitted into the chamber, which is simultaneously heated, and it is arranged that vapours of solvents or plasticizers for the strengthening material or of agents adapted to facilitate the hardening of the resinous strengthening sheets or resinous cementing agents are present in the chamber. In an example, an assembly of two sheets of glass with an intermediate sheet of cellulose derivative is prepared, the moistening mixture used being a mixture of equal parts of triacetin and benzyl alcohol or that prescribed in Specification 355,604, and the glass sheets and/or the cellulose derivative sheet being coated if desired with resinous cementing agents such as glycerylphthalic anhydride resin. The assembly is clamped and transferred to a closed chamber which is then exhausted. The chamber is then heated and the assembly subjected to the action of compressed air or steam and the vapour of diacetone alcohol. Means for air exhaustion and for other operations during any part of the process may be as described in Specification 334,858, [Class 2 (iii)].
Patent GB-1241131-A (GB)
Title: Electro-acoustic transducer
IPC: H04R1/22
Filed: 1969-05-09
Abstract: 1,241,131. Electro - acoustic transducers. FRIED KRUPP G.m.b.H. 9 May, 1969 [10 May, 1968], No. 23822/69. Heading H4J. An electro-acoustic transducer has a rigid holder 1 (Fig. 1) or 8 (Fig. 4) disposed coaxially with respect to a transducer element 4 or 13 and annular elastic elements 6, 7 or 11, 12 connecting opposite ends of the element 4 or 13 to the holder 1 or 8. The transducer element 13 (Fig. 4) is a hollow cylinder and surrounds a pin constituting the holder 8. The elastic elements 11, 12 are of equal resilience. Alternatively, the holder 1 (Fig. 1) is a hollow cylinder and surrounds the transducer element 4, which carries terminal masses 3, 4 connected to the holder 1 by the elastic elements 6, 7. In the latter case F 1 (M 2 +M/2)=F 2 (M 1 +M/2) where M is the mass of transducer element 4, M 1  is the mass of terminal mass 5, F 1  is the resilience of elastic element 7, M 2  is the mass of terminal mass 3 and F 2  is the resilience of elastic element 6. The transducers are used as either transmitters or receivers. The arrangements prevent transmission of vibration between the wall 2 and the transducer element 4 or 13 in the direction of the arrow.
Patent GB-776789-A (GB)
Title: Improvements in removable tabs or labels for marking textile articles
Inventor: MEYER HANS
IPC: B65C5/04
Filed: 1954-08-16
Abstract: 776,789. Label fabrics. POLYMARK, Ltd. July 11, 1955 [Aug. 16, 1954], No. 23832/54. Addition to 735,236. Class 142 (4). In a label fabric according to the parent Specification, the non- thermoplastic yarns 1, 2 are woven plain, and the thermoplastic yarns 3 pass over one and under two (or three) of them ; where a yarn 3 passes over a yarn 2, it does so alongside a yarn 1, as at 4. The yarns 3 may be woven twill, as shown, or may all pass over the same yarns 2. There may be only two yarns 1 between the yarns 3. Specification 735,280 is referred to.
Patent GB-1431984-A (GB)
Title: Roll stands
IPC: G01B7/14
Filed: 1973-05-18
Abstract: 1431984 Rolling mills VEREINIGTE FLUGTECHNISCHE WERKE - FOKKER GmbH 18 May 1973 [20 May 1972] 23868/73 Heading B3M [Also in Divisions G1 and G3] A roll stand comprises a pair of working rolls 10, 11, a pair of guaging surfaces 14, 15 arranged to vary in spacing as the roll gap spacing varies, and means to contactlessly measure and to control the spacing of the surfaces 14, 15, the surface 15 being adjustable. In Fig. 1, gauge rings 12, 13 are provided at the ends of the rolls, surface 14 being provided by one of the gauge rings and surface 15 by the end surface of an adjustable pin 16. In Fig. 2, the surface 14 is provided by a fixed pin on gauge ring 12. In Fig. 3 (not shown) the surface 14 is provided by the end portion of the roll. In Fig. 4 (not shown) the surfaces 14, 15 are provided by pins mounted on the roll chocks, the surface 15 being provided by an adjustable pin. The spacing of surfaces 14, 15 may be measured by an inductive, capacitative or optical arrangement.
Patent GB-1121552-A (GB)
Title: Producing toothed gears
Inventor: DIXON ROY
IPC: B23F19/10
Filed: 1965-06-04
Abstract: 1,121,552. Gear chamfering. DAVID BROWN GEAR INDUSTRIES Ltd. 3 June, 1966 [4 June, 1965], No. 23932/65. Heading B3K. A gear-deburring machine comprises a tool 25 and a work-table rotating about separate axes and means for moving the tool to-andfrom the table axis 16 in time with the rotation thereof. A disc 20 mounted on the spindle 13 of a hobbing machine drives a crank disc 20 connected to a crank 17 to reciprocate a rack 15 mounted on the hob slide (12) and carrying a horizontally-, vertically- and angularly-adjustable tool head 21. The tool 25 is rotated by an air motor 23 and may be conical or concave to produce a chamfer or a radius on the gear teeth. When a gear has been hobbed on the machine, the disc 20 is fitted and the head 21 is lowered to an operative position. Rotation of the work and reciprocation of the rack 15 cause the tool to follow round each tooth-end, except for the tooth tips which may be chamfered previously to hobbing the gear. The head 21 is adjusted angularly for helical gears. In modifications, the tool is reciprocated by a cam on the hob-slide or by hydraulic means or another tool is provided to chamfer the opposite ends of the teeth.
Patent GB-599366-A (GB)
Title: Improvements in the production of cyclic acetals
IPC: C08K5/156
Filed: 1945-09-17
Abstract: 1 : 2 : 5 : 6-Tetrahydrobenzaldehyde ethylene acetal is prepared by reacting 1 : 2 : 5 : 6-tetrahydrobenzaldehyde with ethylene oxide in the presence of an acid-acting catalyst, which is, preferably, an acidic metal chloride such as anhydrous stannic chloride or lead tetrachloride.  Advantageously, the aldehyde is dissolved in an anhydrous inert solvent, the catalyst added and ethylene oxide passed in with agitation at 40-50 DEG  C. in an amount of 50 to 75 per cent of the weight of the aldehyde; the catalyst may then be neutralized, extracted with water and the ethylene acetal extracted from the residue with ethanol.  The acetal may be reduced to hexahydrobenzaldehyde ethylene acetal, or oxidized to 3 : 4-dihydroxy-hexahydrobenzaldehyde ethylene acetal, whose hydroxyl groups may be esterified, for example, by means of an acid-chloride or anhydride or etherified, for example, by means of a dialkyl sulphate.  The products of the invention are stated to be novel and find use as plasticisers for thermoplastics, especially cellulose acetate and other organic derivatives of cellulose, and as perfumes and intermediates.  In examples: (1) 1 : 2 : 5 : 6-tetrahydrobenzaldehyde ethylene acetal is prepared by reacting ethylene oxide with the aldehyde in benzene solution using stannic chloride as catalyst; the ethylene acetal is (2) hydrogenated in ethanol in the presence of Raney nickel yielding hexahydrobenzaldehyde ethylene acetal and (3) oxidized by means of aqueous permanganate yielding 3 : 4-dihydroxy-hexahydrobenzaldehyde ethylene acetal which is (4) etherified by dissolving it in diethyl ether, adding sodium and then reacting with dimethyl sulphate yielding the 3 : 4-dimethoxy derivative, or (5) is esterified to the 3 : 4-diacetoxy compound by refluxing with acetic anhydride.  Other similar esters and ethers may be formed; thus, etherifying groups may be ethyl, propyl, isopropyl, butyl, amyl, lauryl, vinyl, halogen or hydroxyl substituted alkyl groups, cyclohexyl, cyclohexenyl, phenyl, naphthyl, tolyl, cumyl, benzyl and halogen or other nuclear substituted aryl groups.  1 : 2 : 5 : 6-Tetrahydrobenzaldehyde may be made by the Diels-Alder synthesis from acrolein and 1 : 3-butadiene.
Patent GB-1499092-A (GB)
Title: Nuclear reactor coolant transport system
IPC: G21D1/04
Filed: 1976-06-10
Abstract: 1499092 Nuclear reactor cooling systems WESTINGHOUSE ELECTRIC COKP 10 June 1976 [10 June 1975] 24044/76 Heading G6C In a nuclear reactor (e.g. sodium-cooled, fast breeder) coolant system (Fig. 1), an outlet 32 from a circulating pump 24 is connected by a line 52 to the drive nozzle of a jet pump 50 disposed in a main coolant line 48 between a reactor vessel coolant outlet 16 and the circulating pump inlet 30. The major proportion of coolant leaving the pump 24 passes to a heat exchanger 44 or, if the pump 24 is in the "cold leg", passes back to a reactor vessel coolant inlet 14. The jet pump 50, which may be of conventional form (Fig. 2, not shown) or be modified (Fig. 3) to include several drive nozzles 70, operates to reduce and eliminate any pressure differential (in the main coolant line 48 between the reactor vessel coolant outlet 16 and pump inlet 30) occasioned by operation of the pump 24.
Patent GB-903058-A (GB)
Title: Process for preparing a dextro-ortho-mentha-1(7),5,8-triene-3-ol, physiologically active product
IPC: C07C35/12
Filed: 1960-07-11
Abstract: Dextro - ortho - mentha - 1(7),5,8-triene-3-ol (also named carquejol) is prepared from essential oil of carqueja by separating, preferably by distillation under non oxidising conditions, the acetate ester of one of the stereoisomers of the alcohol, hydrolysing the ester and isolating the alcohol. Preliminary treatment to eliminate hydroperoxide and peroxide from the oil of carqueja may be effected before carrying out the separation by distillation.
Patent GB-731291-A (GB)
IPC: A01B43/00
Filed: 1952-09-26
Abstract: 731,291. Beater-mills. HAYTERS, Ltd., and PULLMAN SPRING-FILLED CO., Ltd. Sept. 3, 1953 [Sept. 26, 1952], No. 24218/52. Class 59. [Also in Group I] A combined grass cutting and bruising machine comprises a wheeled frame carrying a pair of horizontallyrotating cutters 24 operating close to the inlet of a suction conduit 21 leading to a casing 20 housing a combined rotary beater and fan (Fig. 5), the beater and the cutters being carried on shafts driven from a towing tractor. Each cutter comprises a square plate of aluminium alloy with sharpened steel tips 25 and the cutters rotate in opposite directions so as to impel the cut crop into the conduit. The conduit is slotted at its for- - ward lower end and the cutters pass through the slots 31, this action serving initially to shred the cut grass. The beater (Fig. 5) comprises a casing 31 closed at one end 32 through which passes a shaft 35 carrying fan-like blades 45 flared and curved at their outer edges. The casing is partly cylindrical, being flared at one side to form a tangential passage 47 through which the cut and bruised grass is discharged into a vehicle to the rear. The top portion 21a of the conduit is formed with a flap 48 to enable previously-cut grass to be fed directly to the beater.
Patent GB-1087258-A (GB)
Title: Improvements in pneumatic tape readers
Inventor: BRUYNE NORMAN ADRIAN DE
IPC: G06K7/02
Filed: 1965-06-08
Abstract: 1,087,258. Tape sensing. TECHNE (CAMBRIDGE) Ltd. April 12, 1966 [June 8, 1965], No. 24219/65. Heading G4M. Holes in a tape are sensed by air passing through jets having flexible tips in contact with the tape. The jets may comprise plastics tubes inserted in bores in a sensing head, the ends of the tubes projecting beyond the surface of the head, or the head may itself be of a plastics material having projecting rims round the bores. A pressure capsule is used to actuate a pawl and ratchet mechanism to advance a sprocket drum driving the tape, and a further capsule is used to raise the sensing head while the tape is being advanced. Both capsules are operated by deflecting a helical spring-type pressure relief valve. The tape may be passed over a perforated plate at the sensing station, or the drum may have peripheral grooves.
Patent GB-907103-A (GB)
Title: Improvements relating to the production of transistors
Inventor: CROCKER NORMAN JOSEPH
IPC: H01F1/03
Filed: 1958-07-28
Abstract: 907,103. Transistors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 3, 1959 [July 28, 1958], No. 24242/58. Class 37. A method of making a graded base junction transistor comprises alloying to opposite faces of a wafer of N(P) type conductivity a first pellet comprising an acceptor (donor) impurity and a second pellet comprising an acceptor and a donor of lower segregation coefficient but higher diffusion constant than the acceptors. During alloying and subsequent cooling a PN junction is formed under the first pellet and a P(N) region overlying a graded restivity N(P) region beneath the second pellet. In the embodiment a low-resistivity surface layer is formed by diffusion of arsenic or antimony vapour into a 20 ohm cm. N type germanium body. Pellets 3 and 5 (Fig. 3) of indium and indium, gallium and antimony respectively and a base contact ring of gold antimony eutectic are then alloyed to the wafer by heating to 800‹ C. for 30 minutes and cooling at a rate of 20 ‹ C. per minute. The depth of alloying is such that PN junction J is with the high resistivity core of the wafer. The device is completed by electrolytically etching troughs 9 and 10 respectively about pellets 3 and 5. Trough 9 is made deeper than the low resistivity layer 2 to isolate pellet 3, which forms the collector electrode, therefrom whereas trough 10 is shallower than the layer to allow a continuous low resistance path from the effective part of the base zone to base contact 8.
Patent GB-1428183-A (GB)
Title: Process and apparatus for the treatment of a vapour or a gas  containing a very finely divided solid or liquid
IPC: B03C3/00
Filed: 1973-05-22
Abstract: 1428183 Electrostatic precipitators; centrifugal separators TISSMETAL LIONEL DUPONT and C EYRAUD 22 May 1973 [26 May 1972] 24281/73 Headings B2J and B2P An electrostatic precipitator comprises an annular gas passage 7 defined by a tubular electrode 2 connected to the negative side of a high voltage supply 5 and surrounded by an earthed collector electrode 1; an inlet 8 for gas or vapour containing dust or liquid particles and an outlet 9 for purified gas, the inlet and outlet being so arranged that the gas follows a helicoidal path through the passage 7 whereby particle separation is partly effected by centrifugal force; nozzles 21 associated with electrode 1 for directing a mist of liquid droplets into the passage 7; nozzles 15 associated with electrode 2 for directing charged droplets towards the electrode 1; discharge points 12 provided on electrode 2 for ionising the gas; and a flange 13 also provided on electrode 2. In use, the dust-laden gas is ionised by discharge from the points 12 on its entry into the passage 7, whereby the dust particles are negatively charged and are attracted to the liquid droplets emerging from nozzles 21; most of the resultant larger particles then move under the centrifugal force to the collector electrode 1 whilst the negatively charged droplets issuing from nozzles 15, with any captured dust particles, also collect on the electrode 1, and the stream thus formed flows out of the precipitator by way of a conduit 25. Some of the large particles, however, are attracted to the electrode 2 to form another stream and this is atomised electrostatically by the points 12 and flange 13 so that it forms a secondary mist in the passage 7 resulting in a greater overall efficiency. The nozzles 15 may be dispensed with (Figs. 3 & 4 not shown), and discharge flanges may replace the points 12 (Figs. 9 & 10, not shown). Embodiments with rectangular housings and electrodes are described with reference to Figs. 11 & 12 (not shown).