baber/WOPTO huggingface dataset:
Patent GB-1004689-A (GB)
Title: Differential gear
Filed: 1962-06-21
Abstract: 1,004,689. Differential gears. REGIE NATIONALE DES USINES RENAULT. June 21, 1962 [June 21, 1961], No. 23957/62. Heading F2D. A limited-slip bevel differential gear comprises disc clutches 48, 55 on opposite sides of the sun pinions 43, 44 loaded by a longitudinally split resilient metal sleeve 45<SP>1</SP> encircling the transverse planet pinion spindle 46, the load exerted by the sleeve being supplemented during slipping by the reaction from ramp cam members 48<SP>1</SP>, 49<SP>1</SP> disposed between the sleeve and clutches 55 and engaging the spindle 46. In a modification, Figs. 3 and 4 (not shown), the metal sleeve 45<SP>1</SP> is replaced by a series of conical spring washers, or a block of resilient elastomer material may be used.
Patent GB-501257-A (GB)
Title: Improvements in and connected with the cooling of internal combustion engines
IPC: F01P3/18
Filed: 1938-08-15
Abstract: 501,257. Cooling systems. DAIMLERBENZ AKT.-GES. Aug. 15, 1938, No. 23989. Convention date, Sept. 15, 1937. [Class 64 (iii)] In a cooling system for an internal-combustion engine, the cooling is effected by two coupled circuits. The first circuit contains water under pressure which passes over the engine a through a pipe d to tubes f of a heatexchanger b, to return to the engine via tube c. The second circuit contains water or glycol under normal pressure which is circulated by a pump l through a tube k and a radiator i, via a tube h to flow through the spaces g of the heat-exchanger b, and so cools the water in the primary circuit. The heat-exchanger b may be mounted for protection between the cylinders of a V-engine. The components of the first circuit are constructed or reinforced so as to withstand the working pressure.
Patent GB-599465-A (GB)
Title: Improvements in or relating to air rifles
IPC: F41B11/50
Filed: 1945-09-18
Abstract: 599,465. Air rifles. BIRMINGHAM SMALL ARMS CO., Ltd., and PERRY, C. A. Sept. 18, 1945, No. 24020. [Class 119] The loading plug 9 of an air rifle has an abutment 23, and the cocking slide 27 has means, such as an arm 25, for engaging the abutment and thereby rotating the plug to the pellet-receiving position when the slide is retracted, the said means moving away from the abutment without imparting further movement to the plug when the slide is returned. The slide shown is slotted for guiding movement on a fixed abutment 29, and is connected by a link 31 to a cocking handle 33. As shown in Fig. 3, the plug 9 which has an enlarged head 11 fits in a correspondingly shaped transverse bore 3 in the rifle, being retained in position by the engagement of a fixed-stud 45 in a circumferential groove 47 of the plug. A groove near the head 11 receives a sealing washer 15 of U- section and of annular form, and a sealing stud 21 is fitted in the plug to seal the pellet-receiving hole 7 when the plug is in the position for firing. The plug is returned to the firing position by a handle 49. Specification 8246/06, [Class 119], is referred to.
Patent GB-1098354-A (GB)
Title: Chairs
Inventor: DALLAWAY JOHN ROBERT
IPC: A47C5/10
Filed: 1964-06-10
Abstract: 1,098,354. Seats. WILMOT BREEDEN (PLASTICS) Ltd. June 8, 1965 [June 10, 1964], No. 24034/64. Heading A4J. A chair comprises a seat part and a back part formed from a pair of identical mouldings 15 of synthetic resin material which are secured to a supporting frame 10 by a single screw (19), Fig. 2 (not shown) which passes through abutted flanges 18 on the seat and back parts. Frame 10 comprises a pair of channel shaped legs 11, 12 secured to a pair of L-shaped side parts 13. Each mould 15 has flanges 16 along its opposite sides and an L-shaped extension 17 which forms a socket to receive the ends of the side parts 13. The flanges 18 are thickened adjacent the side parts 13 and notched to receive the latter.
Patent GB-296057-A (GB)
Title: Improvements in or relating to high-power light projectors
IPC: H05B31/00
Filed: 1928-08-21
Abstract: 296,057. Siemens - Schuckertwerke Akt.-Ges. Aug. 24, 1927, [Convention date]. Arc lamps. - In a search-light provided with a suction channel to withdraw gases &c. from the arc the channel is arranged below the arc so as to draw the flame downwards and reduce" advance field illumination. " The exhaust channel 3 may be arranged as shown in Fig. 1 and draws the flame L below the end of the anode 1 by means of a fan 5. The sector-rack 6 for tilting the light may extend over more than a semi-circle so that if desired the light can be turned through 180‹ and bring its channel 3 above the arc. The channel 3 and regulating device R may be arranged in a line, at an angle of 45‹ with the axis about which the light is tilted as shown in Fig. 3, so as to provide extra clearances from the rotary frame 7<a>.
Patent GB-477270-A (GB)
Title: Space discharge tube circuit
IPC: H03F1/16
Filed: 1937-09-03
Abstract: 477,270. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and LLEWELLYN, F. B. Sept. 3, 1937, No. 24151. Convention date, Oct. 6, 1936. [Class 40 (v)] A thermionic valve particularly for operation at very high frequencies has the inherent electrode impedance compensated, an element being provided to compensate the negative resistance component of the inherent coupling. The Figure shows an arrangement in which compensation is effected by inductance L3 and resistance R3. the latter compensating the negative resistance and the former resonating with the grid-plate capacity at the operating frequency. In a modification, Fig. 3 (not shown), a divided output circuit is used and compensation is effected by a condenser in series with a negative resistance connecting the grid to the anti-phase side of the output circuit. The negative resistance component is preferably slightly over-compensated. U.S.A. Specification 1,325,879 is referred to.
Patent GB-1332248-A (GB)
Title: Snap-in fastener
IPC: F16B19/10
Filed: 1971-04-19
Abstract: 1332248 Injection moulding fasteners VALUE ENGINEERED COMPONENTS Inc 19 April 1971 [20 March 1970] 24157/71 Heading B5A [Also in Division E2]  The part 38 of a mould for injection moulding studs 16 is longitudinally apertured to receive a core 40 which is axially shiftable whereby the dimension A of the shank may be varied while the dimension B remains constant.
Patent GB-761298-A (GB)
Title: Improvements in or relating to circuit-arrangements for amplifying electric signals
IPC: H03F3/44
Filed: 1954-08-20
Abstract: 761,298. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 20, 1954 [Aug. 24, 1953; May 31, 1954], No. 24297/54. Class 37. [Also in Group XL (c)] A rectifier device 7, Fig. 1, is operated in its reverse direction and illuminated with electromagnetic radiation such as from a light source 8. The rectifier then assumes a characteristic, Fig. 2 (not shown), with a low D.C. resistance and high A.C. resistance. A radioactive material 25, such as Mn 54, may be attached to the rectifier, Fig. 5, and a further zone may be added, Fig. 6 (not shown) so that the rectifier may always operate with one junction in the reverse direction.
Patent GB-718228-A (GB)
Title: Improvements in or relating to synthetic lubricants
IPC: C10M169/00
Filed: 1952-09-29
Abstract: The invention comprises esters of the general formula <FORM:0718228/IV (b)/1> in which R is hydrogen or an alkyl group containing from 1 to 4 carbon atoms, R1 is an alkyl group containing from 3 to 9 carbon atoms and x, y and z are equal integers having a value of from 1 to 5.  They are prepared by reacting a trimolar proportion of the trialkanol amine with a monobasic acid with or without a catalyst such as p-toluene sulphonic acid, sodium bisulphate or sulphosalicylic acid.  Straight chain or branched aliphatic acids containing from 4 to 10 carbon atoms may be used and these include Oxo and Fischer-Tropsch synthesis acids.  In the examples: (a) triethanolamine is heated with 2-ethyl hexanoic acid in the presence of xylene and sodium bisulphate to give the corresponding ester.ALSO:Synthetic lubricants comprise esters of the general formula <FORM:0718228/III/1> in which R is hydrogen or an alkyl group containing from 1 to 4 carbon atoms, R1 is an alkyl group containing from 3 to 9 carbon atoms and x, y and z are equal integers having a value of from 1 to 5.  They may be used alone or blended with other lubricants such as mineral oils or other synthetic lubricants. Various improvers such as viscosity index improvers pour point depressors, oxidation inhibitors and the like may be added to the esters.
Patent GB-1049899-A (GB)
Title: Valve
Inventor: CHATWIN MICHAEL EDGAR
IPC: C22C38/58
Filed: 1964-06-11
Abstract: A valve, particularly an IC engine exhaust valve, is cast from an alloy having the following percentage composition:-  .C.0.5-2 .Si.0.5-2 .Mn.7-14 .Ni.3-10 .Cr.19-25 .N.0.08-0.3 .Fe.the remainder The alloy may also include Nb 1.5-2.5
Patent GB-244648-A (GB)
Abstract: 244,648. Grimme, Natalis, & Co. Akt.- Ges. Dec. 23, 1924, [Convention date]. Multiplying and dividing apparatus. - In a machine of the pin-wheel and cam-disc type a series of indicating discs e is arranged in front of the totalizing counter c and is adapted to be connected therewith through an intermediate pinion d and gear wheels c<1>, e<1> for the purpose of effecting discount calculations. The indicating discs are mounted on a spindle f carried by arms g which can be rocked to effect the engagement and disengagement of the discs e with the intermediate wheels d. The usual detents h acting on the totalizer counter are provided with extensions k for co-operation with the pinions d. An example of a calculation of discount is set forth in the Specification.
Patent GB-388759-A (GB)
Title: Improvements in or relating to kinematograph apparatus
IPC: G03B21/50
Filed: 1931-08-31
Abstract: 388,759. Kinematograph projectors. GRAMOPHONE CO., Ltd. and STANLEY, H. H. V., 142, North Hyde Road, both in Hayes, Middlesex. Aug. 31, 1931, No. 24470. [Class 97 (i).] The axis of a rotating intermittent shutter is automatically moved, when movement of the feed mechanism ceases, to remove the shutter from the projection beam and permit prolonged exhibition of an image in the gate; the movement may cause a heat screen to move into the beam, and movement of the feed mechanism automatically produces reverse movements of the shutter and screen. As shown, a driven vertical shaft 4 carries a helical gear 5 engaging a helical gear 6 on the shutter shaft 7, and the shaft 7 is mounted in a bracket 9 rotatable between stops about the shaft 4. When movement of the shaft 4 ceases, the bracket 9 &c. moves into the position shown in broken lines, and the shutter 8 moves out of the light beam passing from a condenser to the film 1. When the shaft 4 again moves, the shutter moves into the beam. A mica heat screen 12 may be mounted on a pivot carrying a downwardly projecting lever 11 engaging the bracket 9 during normal projection to hold the screen above and out of the projection beam ; movement of the bracket to the broken-line position allows the screen to fall into the projection beam. The helical gears 5, 6 may be replaced by bevel or other gears.
Patent GB-462301-A (GB)
Title: Improvements in or relating to apparatus for supplying liquids to internal combustion engines
IPC: F02M37/12
Filed: 1935-09-02
Abstract: 462,301. Supplying lubricants and other liquids to internal - combustion engines. FORSTER, E. Sept. 2, 1935, No. 24488. [Class 12 (iii)] [Also in Group XXVII] Means for supplying a liquid, e.g., a corrosioninhibiting liquid, to an internal-combustion engine, at a given rate when the engine is started up in a cold state, and at a reduced rate when the engine is started up in a state of higher temperature, comprises a chamber 1 having non-return inlet and outlet valves 7, 9, and bellows 2, 3. The chamber 1 is supplied with liquid under slight pressure or by gravity feed. The bellows 2 is expanded upon starting of the engine such as by connecting a duct 11 to the engine lubricating system, and the bellows 3, which may contain a liquid of high heat sensitivity, expands as the engine warms up. The outlet passage 12 has a flow control means, such as, a porous plug 15, or a jet 15<a>, Fig. 3, and leads to a duct 12<a> open to the atmosphere at 13a and connected by a pipe 19 to the engine induction pipe. The chamber 1 is normally full. On starting the engine from cold, the bellows 2 expands and displaces liquid past the outlet valve 9. A bent spring 10 actuated by the bellows 2 holds the valve 9 open. As the engine warms up the bellows 3 expands and gives a further discharge. Ultimately the bellows 3 contacts the valve 7 and holds it open so that during normal running a slow feed of liquid occurs. When the engine is started up hot the amount of additional feed due to the expansion of the bellows 2 is controlled by the bellows 3 which tends to collapse due to the increase of fluid pressure inside the chamber 1. The bent spring 10 may be omitted so that liquid is delivered only while the bellows 2, 3, are expanding. The discharge passage may have flow control means actuated by the suction in the engine manifold and which will supply extra air to the engine. As shown in Fig. 2, the means consists of a leaky piston 20, spring- pressed upwardly and having pointed ends 20<a>, 20b, co-operating with ducts 18, 13a, respectively. In a modification, the piston is replaced by a tube 23, Fig. 4, open at one end near the opening 13<a>, and having a duct 24 at the other end. A sight feed may be located in the pipe 19.
Patent GB-1316622-A (GB)
Title: Tablettable compositions
IPC: A61K9/46
Filed: 1970-05-20
Abstract: 1316622 Tablet lubricants MILES LABORATORIES Inc 20 May 1970 [7 July 1969] 24500/70 Heading A5B [Also in Division B5] Tablets are formed in a high speed tabletting operation using, as lubricant, adipic acid, preferably in an amount of at least 5% by wt. The composition may include detergents, disinfectants, germicides and/or abrasives which disintegrate in water to form cleaning solutions. Preferred compositions comprise a mixture effervescent in water of a base and an acid other than adipic e.g. alkali metal carbonate or bicarbonate with malic, citric or tartaric acid. Therapeutic or analgesic agents such as acetyl salicylic acid and acetyl j-aminophenol may be added with water-soluble excipients, colouring or flavouring, diluents, binders, disintegrators, &c.
Patent GB-425054-A (GB)
Title: Improvements relating to the heat treatment of ferrous or non-ferrous materials, and particularly to the annealing of metallic plates, sheets, strips or the like
IPC: F27B9/24
Filed: 1933-09-06
Abstract: 425,054. Metal - heating furnaces. BEESTON, W. G., 30, Brynymor Crescent, and BROWN, W. R., Hillside, Eden Avenue, both in Swansea. Sept. 6, 1933, No. 24742. [Class 51 (ii)] A continuous furnace for the heat treatment of plates, sheets, strips, &c., is muffle heated and has a roller way conveyer of the overlapping disc type. As shown, independently fired upper and lower combustion chambers 1, 2 are separated from the heat treatment chamber 7 by arches 4, 5 preferably of carborundum, and a preheater 15 for the air supply for combustion is fitted at the waste gas exhaust end. The furnace may comprise preheating, heating and cooling sections in line and the roller way conveyer extends from the charging end through the preheating and heating zones, and a part of the cooling-zone, after which follows an endless conveyer. The roller discs may be made of carborundum or other non-metallic refractory. If necessary, a non-oxidizing, or de-oxidizing gas may be supplied to the heating-chamber.
Patent GB-702297-A (GB)
Title: A frigorific separation process of gas mixtures by liquefying and rectifying
IPC: F25J3/04
Filed: 1951-10-24
Abstract: 702,297. Separation of gas mixtures. SOC. L'AIR LIQUIDE SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES G. CLAUDE. Oct. 24, 1951 [Oct. 30, 1950; Aug. 1, 1951], No. 24890/51. Class 8 (2). Cold separation into relatively high and low boiling fractions of a mixture of gas and liquid or of a gaseous or liquid mixture e.g., liquid oxygen and argon, delivered through a duct T1, Fig. 3, of the low pressure column C" of a conventional double column rectification process, comprises rectification in a low pressure column C1 compressing the resulting gas mixture. of oxygen and argon issuing at an outlet G in a compressor J1 prior to rectification in a high pressure column C2 cooled by boiling liquid oxygen in the base of the column C1, delivering substantially pure gaseous argon at an outlet L and a mixture of liquid oxygen and argon from a base outlet M2, and expanding the latter liquid in a valve N for use as reflux liquid in the column C1 from which pure liquid oxygen issues at an outlet F1 The preliminary rectification is effected by partial liquefaction of cold compressed air in a coil Z at the base of a high pressure column C' from which substantially pure liquid nitrogen condensed by a condenser vaporizer E, and liquid containing 45 per cent oxygen are delivered and expanded at valves V3, V1 respectively before being fed into the column C". Substantially pure gaseous nitrogen and liquid oxygen are delivered through ducts Sl, S2, and the liquid oxygen product from column C1 is fed into the column C". In the event of gaseous oxygen-argon mixture passing from column C" to column C1 then pure gaseous oxygen passes from column C1 to column C" through a duct T2. In a modification for the separation of gas of mineral oil origin, gas entering exchangers E1, E2, Fig. 2, at an inlet A is partly condensed to a liquid mixture rich in propylene and propane which is then expanded at a valve B1 and rectified in the column C1, C2 with compression at the compressor J1. A mixture of liquid propane and propylene product from the base of the column C1 cools a condenser T and the exchangers E2, E1 before issuing at a duct V; the condenser T providing reflux for an auxiliary column C5 supplied with cold gas from the exchanger E2 and returning liquid propanepropylene mixture back to the exchanger E2. A mixture of permanent gases containing ethane and ethylene issuing from the outlet L is further rectified in a second double column C3, C4 as is a similar gas mixture from the top of the auxiliary column C5 after traversing exchangers E3, S. Product liquid ethane-propane mixture leaving the base of column C3 cools the exchangers E3, E2, E1 before delivery as gas at a duct W, and a mixture of permanent gases methane carbon monoxide, nitrogen and hydrogen leaving the head of the column C4 traverses the exchanger S, turbines T4, T5 and exchangers E3, E2, E1 before delivery at a duct U. Specification 603,249 is referred to.
Patent GB-813334-A (GB)
Title: Improvements in 17-aromatic sulfonate-16-keto steroids
IPC: C07J75/00
Filed: 1956-03-12
Abstract: The invention comprises 5-androstene-3,17-diol - 16 - one 3,17 - di - (p - toluenesulphonate) and 17 - p - toluenesulphonate, 1,3,5(10) - estratriene - 3,17 - diol - 16 - one 3,17 - di - (p-toluenesulphonate), and 3-methoxy-1,3,5(10)-estratrien - 17 - ol - 16 - one 17 - p - toluenesulphonate, and a process for the preparation of 17-aromatic sulphonate-17-keto-steroids by reacting an aryl sulphonyl halide with a 17-hydroxy-16-keto-steroid having the general formula: <FORM:0813334/IV (b)/1> wherein the A ring may contain no double bonds or one, two or three double bonds, the B ring may contain no double bonds or one or two double bonds, Y represents hydrogen or the methyl group when the C10 carbon is not joined by a double bond to another carbon atom, and X represents a hydroxy, acyloxy or ether group.  The above process may be modified in that in the case where the 17-hydroxy-16-keto-steroid reactant has a free hydroxy group in the 3-position, the aromatic sulphonate ester group formed at the 3-position as the result of the reaction with the aryl sulphonyl halide may be selectively hydrolysed with dilute sulphuric acid to a hydroxy group.  A suitable aryl sulphonyl halide is p-toluene sulphonyl chloride.  Suitable 17-hydroxy-16-keto-steroid reactants are 1,3,5(10)-estratriene-3,17-diol-16-one, 5 - androstene - 3,17 - diol - 16 - one, 3-methoxy - 1,3,5(10) - estratrien - 17 - ol - 16 - one, and 3-methoxy-5-androsten-17-ol-16-one.  In the examples the four compounds referred to above as forming part of the invention and 3 - methoxy - 5 - androsten - 16 - one 17 - p - toluenesulphonate are prepared.
Patent GB-192112-A (GB)
Title: Improvements in apparatus for recording the passage and determining the speed of trains and the like
IPC: B61L25/02
Filed: 1921-09-20
Abstract: 192,112. Lucy, E. E. Sept. 20, 1921. Roller and - sheet recording - apparatus: recording by distinction marks.- Comprises improved means for recording the time of passage of a train at the ends of a given length of track. The train operates contacts at the ends in circuit with electromagnets 22, 23, the armatures 24, 25 of which strike printing levers 26, 27, alternative operation of which is ensured by a rocking switch 31 actuated by an arm 38 on the armature in action. The record strip is fed from a supply spool 16 by pawls 34, 35 on the armatures engaging pins on the take up drum 17, which is in two parts to facilitate removal of the strip and has a detent pawl 34<A>. The ink ribbon is led over guides 20, 21 between the supply and take up roll 18, 19 the latter operated by a link from the adjacent armature. The type wheels are actuated through spring shafts from a clock 8, the hour wheel being driven from the minute wheel by a transfer lever 14<A> and pawl 14<B>, Fig. 2. A type 33 struck only by the hammer 26 distinguishes the corresponding imprint.
Patent GB-1216017-A (GB)
Title: Improvements in or relating to synthetic filament yarn
Inventor: COBB MALCOLM CARNIE
IPC: D02G3/34
Filed: 1968-05-24
Abstract: 1,216,017. Yarns. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 May, 1969 [24 May, 1968], No. 24933/68. Heading D1W. A carpet yarn comprises not less than 70% of delustred fibres containing not less than 0.7% by weight of a delustrant and not more than 30% of bright fibres containing less than 0.3 % by weight of a delustrant. The fibres may be staple fibre or continuous filaments of nylon, the bright fibres may have a trilobal cross-section, and the fibres of either or both components may have different deniers. The delustrant exemplified is titanium dioxide. The anti-soiling effect of the fibre blind is oombined with clear colour retention. Yam formed by doubling yams of the two forms of continuous filaments may be bulked, e.g. stufferbox crimped, to improve such "blend" of fibres.
Patent GB-151923-A (GB)
Title: Apparatus for measuring the ratio of the strengths of two currents
IPC: G01R5/14
Filed: 1920-08-30
Abstract: 151,923. Soc. Da et Dutilh. Sept. 30, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Electro-magnetic current-meters; resistances, measuring; inductances and capacities, measuring.-An instrument for measuring the ratio of the strength of two currents consists of two coils d, with or without iron cores and pole-pieces, each traversed by one of the currents, and acting oppositely on an uncontrolled armature a rotating about an axis b. The sensitiveness may be varied by varying the angle between the axes of the coils d. In a modification, two armatures, each acted on by one of the coils, are attached to the same spindle. In a further modification, Fig. 5, two curved armatures g attached to opposite ends of a non-magnetic beam h are attracted into solenoids d carrying the currents to be compared. A single curved armature acted on at opposite ends by the two coils may' replace the two armatures g and beam h. The apparatus is applicable for the measurement of resistances, inductances, and capacities, and in conjunction with variable resistances, for level indicators, speed indicators, and signalling apparatus for the transmission of orders &c.
Patent GB-283625-A (GB)
Title: An improved netting needle for net making
IPC: D04G1/00
Filed: 1926-10-11
Abstract: 283,625. Swainson, M. A., and Swainson, T. G. Oct. 11, 1926. Drawings to Specification. Net-making apparatus.-A netting needle is made from sheet metal consisting of aluminium alloyed with steel. Reference has been directed by the Comptroller to Specification 24687/11.