baber/WOPTO huggingface dataset:
Patent GB-177891-A (GB)
Title: Improvements in hand pneumatic hammers
IPC: B25D9/18
Filed: 1921-01-12
Abstract: 177,891. Waterhouse, H. Jan. 12, 1921. Percussive hand tools. - The handle of a pneumatic hammer is screwed directly on to the barrel, or (as shown) is attached by means of a bush 52 on which the handle is screwed, and which by means of ratchet teeth engages a collar 53 keyed to the barrel and is held by a spring clip 53a.
Patent GB-509892-A (GB)
Title: Process for the production of pure alumina
IPC: C01F7/164
Filed: 1938-01-20
Abstract: 509,892. Manufacture of alumina. DYCKERHOFF, PORTLAND-ZEMENTWERKE AKT.-GES. Jan. 20,1938, Nos. 1931 and 1932. Convention dates, Jan. 29, 1937, and Feb. 15, 1937. [Class 1 (iii)]. In the process of obtaining pure alumina from bauxite, kaolin, clay &c. by converting them into alkaline earth aluminates, the aqueous solution obtained by washing is treated with carbon dioxide under pressure for the purpose of precipitating the alumina, the calcium remaining in solution as bicarbonate. Pressures down to <1>/3 atmosphere superpressure have been found sufficient. Specification 423,594 is referred to.
Patent GB-826327-A (GB)
Title: Improvements in or relating to perforated card belts for jacquard mechanisms
IPC: D03C15/00
Filed: 1958-01-21
Abstract: 826,327. Jacquard pattern cards. SCHROERS, F. H., and SCHROERS, W., [trading as SCHROERS JACQUARDPAPIERINDUSTRIE]. Jan. 21, 1958 [Jan. 24, 1957], No. 1960/58. Class 142(2) A jacquard pattern belt consists of a layer of PVC foil and a layer of paper cemented together, the paper layer being formed by longitudinal strips laid sideby-side. Reinforcing strips may be pasted on the foil or paper side of the belt at the positions of the feed perforations.
Patent GB-610841-A (GB)
Title: Improvements in or relating to sound damping and silencing devices for gaseous currents
IPC: G10K11/20
Filed: 1946-01-21
Abstract: 610,841. Silencing gaseous currents. NEWTON, E. P. (Likuvag Akt.-Ges.) Jan. 21, 1946, No. 2003. [Class 7 (ii)] Means for damping or silencing the gaseous currents flowing through a pipe elbow comprises perforated metal walls T, which enclose sound deadening material K, e.g. glass or slag wool, and a sound reflector S, which is preferably supported by sound insulating members I, and arranged so that all sound waves are reflected on to the walls T. The cross section is rectangular and formulµ are given for calculating the dimensions.
Patent GB-284211-A (GB)
Title: Improvements in resilient toothed wheels for rotating the driving wheels in motor vehicles
IPC: F16D3/62
Filed: 1928-01-21
Abstract: 284,211. Soc. Anon. des Ateliers de SÞcheron, (Assignees of Werz, J.). Jan. 24, 1927, [Convention date]. Flexible toothed wheels.-In resilient toothed wheels for driving the track-wheels of road and rail vehicles, the toothed rim is formed in two parts d, e and fitted upon a hub f secured to the track-wheel c, plates provided with notched projections g being secured to the hub on either side of the toothed rim, and projections i, resiliently mounted in any manner to allow relative circumferential motion on the toothed rim, engaging in the notches h. The notches are arranged at a greater distance from the main axis than is the periphery of the hub f. The freedom of movement may be limited by engagement of the projections g with stops on the toothed rim. Reference has ben directed by the Comptroller to Specification 228,519.
Patent GB-789299-A (GB)
Title: A control device for steam turbines
IPC: F01D21/02
Filed: 1955-01-24
Abstract: 789,299. Turbine plant. LICENTIA PATENT-VERWALTUNGS-GES. Jan. 24, 1955 [Jan. 27, 1954], No. 2063/55. Class 110 (3). [Also in Group XXIX] A steam turbine with reheating has a valve controlling the admission of reheated intermediate pressure steam and live steam operated by a regulator in dependence upon the load so that on a sudden decrease of load the valve or valves for the admission of the reheat steam are caused for a short time to close at a higher rate and to a greater extent than that normally imposed by the regulator. A centrifugal governor 1 driven from the turbine shaft controls a slide valve 2 which regulates the pressure in a conduit 6. The conduit 6 branches into conduits 8, 9. The conduit 8 leads to a receiver 10 containing a spring-loaded piston 11 which actuates a control piston whereby a rotary servomotor 18 controls the live steam admission valve 19. The strength of the spring 12 is adjustable by a device 13. A valve 14 allows the pressure in the conduit 8 to be adjusted. The conduit 9 leads to the casing 20 of a slide valve. The slide valve 21 is maintained in its normal position by a spring 22 which acts on the valve rod 24 through spring-plates 27, 28 coacting with discs 25, 26. The casing 29 of a dashpot is connected to the valve rod 24. The piston of the dashpot is moved by a control disc 32 attached to the shaft of the rotary servomotor 18. The slide valve 20 is connected through a conduit 37 to the control gear of the admission valve 40 for the reheated intermediate pressure steam. When the load on the turbine increases suddenly, the pressure in the conduits 8, 9, and 37 increases and opens the admission valves 19, 40. The opening of the admission valve 19 also causes the disc 32 to rotate and raise the dashpot 30. The dashpot actuates the slide valve 21 against the action of the spring 22 to cut off the supply to the conduit 37 from the conduit 9 and allow pressure oil to enter the conduit 37 to open the valves 40 at a higher rate and to a greater extent. The spring 22 then returns the slide valve 21 slowly to its normal position by causing oil to pass from above to below the dashpot piston 31. A throttle valve 34 allows the duration of operation of the dashpot to be varied. When the load on the turbine decreases, the slide valve 21 reduces the pressure entering the conduit 37 and so temporarily closes the valve 40 at a higher rate and to a greater extent. This causes an accumulation of the steam in the reheat conduit. An arrangement in which the valves 40 are fully open at a part load is also described.
Patent GB-396070-A (GB)
Title: Process and apparatus for the manufacture of multi-coloured candles
IPC: C11C5/02
Filed: 1932-01-23
Abstract: <PICT:0396070/III/1> <PICT:0396070/III/2> Multicoloured candles are obtained by passing separated differently coloured continuous rods or ribbons of candle material simultaneously through a heating zone to soften the surfaces, converging them about a central wick while passing through a cooling zone, and cutting off candle lengths.  For example, differently coloured candle pastes are forced through holes 1<1> into compartments 2<1> of a heating chamber 2, wick is drawn through a central passage 10, and the whole is compacted at the lower end E and extruded through a nozzle 7 having a cooling jacket 5.  The compartments 2<1> are formed by hollow radial partitions 3 through which steam or hot water circulates or which contain electric or other heaters.
Patent GB-636708-A (GB)
Title: Improvements in or relating to rollers for rolling-mill roller tables
IPC: B21B39/00
Filed: 1948-01-23
Abstract: 636,708. Roller tables. BOHLER, V. Jan. 23, 1948, No. 2153. Convention date, Jan. 24, 1947. [Class 83 (iv)] Rollers 1 of rolling-mill feed tables rotating on fixed shafts 3 and driven by separate electric motors 14 have a change wheel gear 10, 11 between the motor shaft 13 and a shaft 8 carrying a pinion 7 which drives the roller by the internally toothed rim 6. The gear-box may be mounted on the roller support 4 as shown or may form the gear-box end of a geared motor, the shaft 8 being integral with the motor drive shaft or directly coupled thereto.
Patent GB-463094-A (GB)
Title: Improvements in settling apparatus
IPC: B01D21/00
Filed: 1936-01-23
Abstract: 463,094. Gravity-separation apparatus. SCHNEIBLE, C. B. Jan. 23, 1936, No. 2221. [Class 46] After sufficient solid material has collected in a settling tank A the supply of material thereto is stopped and the liquid in the tank is drained away through a tower B, formed of tapering sleeves attached to a central plate 29 so as to leave an upwardly directed passage between each pair of adjacent sleeves. The tower is supported at the bottom on a conduit 14 which extends across the base of the tank, has openings within the tower and is connected to a valve-controlled discharge pipe. Material supplied to the tank through a pipe 23 is directed across the tank by baffles 22, 22<a>. Clear liquid flows away over a weir 24 to a box 25 and tank D. A baffle shield B<1> is arranged on the inlet side of the tower. When the liquid has drained away through the tower B, the solid matter is discharged into a truck below by opening counterweighted gates c<1> which normally close the bottom of the tank. Shafts 44 on which the gates c<1> are mounted can be turned simultaneously by manuallyoperated gearing. Two tanks A are provided so that a continuous supply of material can be treated.
Patent GB-524128-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C33/24
Filed: 1939-01-23
Abstract: 524,128. Bearings, BUGATTI, E, Jan. 23, 1939, No. 2301. Convention date, Dec. 28, 1938. [Class 12 (i)] A bearing has a bearing surface of anti - friction metal divided into a plurality of sections 4 separated by thin metal ribs 5 harder than the anti-friction metal, the ribs 5 being closely and regularly disposed throughout the bearing surface with the exposed surface of the ribs lying flush with that of the lining. The crosssection of the antifriction metal pieces may be semi-circular or trapezoidal. The ribs may be disposed helically, axially, or transversely or form a network running in two or more intersecting directions. The anti-friction metal pieces may be removable. Oil grooves 3 may be formed at the ends of the bearing.
Patent GB-828988-A (GB)
Title: A method of preparing 6-azauracil and its 5-alkyl-substituted derivatives
IPC: C07D253/075
Filed: 1958-01-23
Abstract: 6-Azauracil and its 5-alkyl derivatives are prepared by cyclizing the thiosemicarbazone of glyoxalic acid or its alkyl derivatives in aqueous alkaline solutions to the corresponding 5-oxo-3-thiono - 2,3,4,5 - tetrahydro - 1,2,4 - triazine, which is transformed into 6-aza or a 5-alkyl-6-azauracil by heating with an aqueous solution of chloracetic acid.  In an example, glyoxalic acid is treated with thiosemicarbazide to form the thiosemicarbazone and this is cyclised in sodium hydroxide solution to give 5-oxo-3-thiono-2,3,4,5-tetrahydro-1,2,4-triazine which on treatment with chloracetic acid solution gives 6-azauracil.  Similarly is prepared 6-methyl - 3,5 - dioxo - 2,3,4,5 - tetrahydro - 1,2,4-triazine (azathymine) from pyruvic acid thiosemicarbazone.  An example of the preparation of 6-azuracil, without isolation of the intermediate, is also given.
Patent GB-268482-A (GB)
Title: Improvements in self-adjusting arm chairs, easy chairs, lounges, and the like
IPC: A47C1/032
Filed: 1926-09-24
Abstract: 268,482. Symes, F. T. Sept. 24, 1926. Rocking, swing, &c. scats.-In a chair having a pivoted back which is also hinged at P<2>to a seat supported by links L<1>, L<2> from the chair frame, the back is pivoted to the arms at a point P' a few inches inwards, toward the front of the arms, and the woodwork of the arms and/or the back is cut away so as to allow the back to drop as the seat moves forward. Other forms of supporting links may be employed and the upholstery may be so arranged as to conceal the supporting mechanism. Specifications 17470/13, 20797/14, 210,938, 222,898, and 245,369 are referred to.
Patent GB-548048-A (GB)
Title: Improvements in and relating to the construction of bridges
IPC: E01D15/133
Filed: 1941-02-21
Abstract: 548,048. Bridges. BUTTERLEY CO., Ltd., and WALTERS, C. Feb. 21, 1941, Nos. 2355 and 5078. [Classes 20 (i) and 20 (ii)] A bridge is formed of standardized hollow boxshaped members a joined together at their ends by drum or bobbin shaped members formed of spaced discs c separated by cross plates c<SP>1</SP>, Fig. 7, or by a tubular member welded to the discs. The discs are apertured to receive the bolts for the members and also the bolts for securing slotted plates d which fit over the transverse supports f which may be of I-section metal or of box section similar to the members a. Stiffening members e are associated with the plates d and the apertures through these plates may be remtorced by washers c<SP>4</SP> welded to the plates. The box shaped members are slotted at two sides at the ends to receive a tube or boss b, while the other two sides are bent around to meet at a<SP>1</SP> and are welded together. The decking is formed of chequered plates i with downturned edges all round and with recessed ends to rest on the supports a or f.
Patent GB-1125753-A (GB)
Title: Improvements in or relating to gain and attenuation control circuit arrangements
Inventor: FENTON ROGER WAKEFIELD
IPC: H03G1/00
Filed: 1965-01-19
Abstract: 1,125,753. Gain control. MARCONI CO. Ltd. 16 Dec., 1965 [19 Jan., 1965], No. 2377/65. Heading H4R. A gain control system includes an energy sensitive resistor R5 Fig. 1 which forms one element of a potentiometer in the signal path to an amplifier A2 from a terminal 1, the energy sensitive resistor is also connected in a D.C. bridge circuit which may be un-balanced, e.g. by the adjustment of remotely located resistor R3, when the unbalance voltage, amplified by amplifier A1, causes supply of energy to the resistor R5 to adjust its value and rebalance the bridge at a new value of attenuation in the signal path to amplifier A2. The resistor R5 may be photo sensitive, energy being supplied by lamp L, or it may be a thermistor or a resistor sensitive to the strength of an applied magnetic field. In the embodiment of Fig. 1 the potentiometer comprises resistor R5 and the input impedance of amplifier A2 which is low, due to feedback over R7, so that signal level has little effect on the balance of the bridge. A complete circuit including transistor amplifiers is described with respect to Fig. 2 (not shown). In an alternative arrangement described with respect to Figs. 3 and 4, (not shown), the energy variable resistor (R5) is connected in shunt with the amplifier (A2) input with signal fed via a series resistor (R7) to the amplifier input. It is also suggested that the control of attenuation may be exercised by feeding a control voltage into one arm of the bridge.
Patent GB-535877-A (GB)
Title: A new or improved hand lamp
IPC: F21V17/02
Filed: 1940-02-09
Abstract: 535,877. Lamps. ROTH, N. M. Feb. 9, 1940, No. 2549. [Classes 75 (i) and 75 (iv)] A hand lamp is provided with a shade s which is hinged to the upper part of the front d of the lamp'and can be secured at the desired inclination by means such as a screw v and slot u. The lamp may include also the following features :-The shade carries an adjustable hinged extension w which is secured by a screw y. A candle socket q is frictionally mounted in a ring p on the base n. When the lamp is out of use, the candle socket is pushed upwards, the shade s is lowered, and the extension w is turned under the case and secured by a catch n'. The candle may be replaced by an oil or electric lamp.
Patent GB-232358-A (GB)
Title: Improvements in and relating to the distillation and carbonising of coal, peat and other carbonaceous materials
IPC: C10B1/04
Filed: 1924-01-31
Abstract: 232,358. Perkin, F. M., and Bettisfield Trust Co., Ltd. Jan. 31, 1924. Charging.-The charge for a carbonizing retort is preheated in a conveyer and hopper. The material from a hopper d is fed to the retort hopper b by an elevator enclosed in a casing c through which hot gases are passed so as to pre-heat the material to about 250‹ C. before it is delivered to the retorts a. The hopper b may be heated by the waste heat from the conveyer casing. Specification 134,236, [Class 55 (i), Coking &c.], is referred to.
Patent GB-588169-A (GB)
Title: Improvements relating to electrical relays
IPC: H02H3/027
Filed: 1945-02-01
Abstract: 588,169. Protective cut-out arrangements; induction relays. CHAMBERLAIN & HOOKHAM, Ltd.,' JAMES, S., and BRAINES, W. F. Feb. 1, 1945, No. 2604. [Class 38 (v)] The electromagnets c, d of an induction relay are energized by the secondary winding g of a transformer, the tapped primary winding h thereof being connected to one or more current transformers m in one or more phases n of a distribution system. The core k of the transformer is saturable at a predetermined value of primary current in order to obtain a time lag in the relay operation. A relay comprising a single electromagnet may be employed, Fig. 2 (not shown) which may be energized by D.C. obtained by interposing a rectifier between said electromagnet and the transformer. Alternatively an auto-transformer may be employed with tappings on one part of its winding. Specification 162,093, [Class 38 (v)], is referred to.
Patent GB-657265-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/02
Filed: 1949-01-31
Abstract: 657,265. Rope railways. KING, Ltd., G. W. Jan. 31, 1949, No. 2622. [Class 104 (ii)] In a conveyer system of the type wherein load - carrying trolleys 11 are propelled along a track 10 by pusher dogs 12 carried by a driving-chain 13 which is itself suspended from trolleys 14 running on an upper track 15, and means are provided to disengage the driving dog from a trolley which is arrested optionally, e.g. for loading or unloading, the arrested trolley, as shown at the right-hand side of Fig. 2, is arranged to engage a roller 24 on a pivoted arm which is thereby swung to operate a cable link 22 extending rearwardly to a preceding station where it operates a parallel link device including a ramp 16 which is brought into the track 15 so that it lifts the trolley 14 carrying the chaindriven dog 12 propelling the following trolley, and at the same time raises a stop 30 in the track and halts the trolley. On the release of the first trolley the chain lifting device is rendered inoperative and the drive to the succeeding trolley restored automatically. A series of such interconnected stations and a similar " final station are provided along the system and at each the parallel track members 15, Fig. 4, carrying the trolleys 14 are slotted to enable a ramp 16 to be raised or lowered therethrough. Each ramp is carried by a pair of bell-crank levers 17, 18 which are pivoted on fixed pivots 19, 20 adjacent to the track members 15, one arm of each bell-crank being pivoted at its outer end to the ramp, and the other arm connected pivotally to a link 21 which, with the ramp 16, forms substantially a parallel link system. One end of the link 21 is connected to a tension spring 26 which is anchored to a fixed point, the other end being connected to the cable linkage 22. At its other end the cable 22 is connected to one arm of a bell-crank 23 mounted on a fixed pivot on the supporting framework so that the roller 24 on the other arm can be brought in the way of part of an advancing trolley. The stop 30, which is projected into the path of a trolley when the ramps 16 at a station become operative, comprises an end of a pivoted lever 29 which is connected by a rod 28 to an arm 27 movable angularly on pivotal movement of the bellcrank lever 17 associated with each ramp. Ramps or equivalent devices are necessary at the final station to lift the driving chain and pusher dogs above a trolley held at that station.
Patent GB-262296-A (GB)
Title: Improvements in or relating to presses for trousers and ties
IPC: A47G25/72
Filed: 1926-01-29
Abstract: 262,296. Richardson, J. Jan. 29, 1926. Trouser and like presses.-A trouser &c. press consists of a base board c to which are connected two upper boards a secured together by metal straps b, the connection between the upper and lower pressure members being effected by bowshaped spring hinges d along one edge and by two levers g along the other. Each lever is pivoted at h to a stout spring wire frame e, pivoted to the lower board and adapted to engage in one of a series of notches j in each strap b. The pivotal connection for the spring hinges may be next to the top or bottom board or may be in the centre of the spring, and the notches j may be in the side of the straps or in the surface thereof. Rubber feet may be provided on the under surface of the bare boaard.
Patent GB-555703-A (GB)
Title: Improved muffle kiln
IPC: F27B5/00
Filed: 1942-03-02
Abstract: 555,703. Muffle kilns. CRAIG, J. March 2, 1942, No. 2693. [Class 51 (ii)] A muffle furnace comprises an arched heating chamber surrounding an inner chamber the side walls and arched roof of which are formed of blocks 13, Fig. 9, with opposed recesses 13a in which rebated members 21, 22 are mounted having apertures 20a filled in by thin fireproof material. The end walls include blocks with central holes similarly filled, and transverse flues 7, Fig. 2, under the floor lead to a central longitudinal flue 9 leading, in turn, to a discharge flue 17, Fig. 1. Fire boxes 12 are provided and the gases are led to the space 4 between the arches and thence down passages 5 to the flues 7 ; a vent 18 is provided for the inner chamber.
Patent GB-801736-A (GB)
Title: A novel carotenoid and a process for the manufacture of same
Filed: 1957-01-25
Abstract: The invention comprises 1,26-di-[21,61,61-tri methyl - cyclohexen - (11) - yl]- 3,7,11,16,20,24-hexamethyl - hexacosadodecaene - (1,3,5,7,9, 11,15,17,19,21,23,25) - yne - 13 and a process for the manufacture thereof which comprises condensing a 3,8-dimethyl-2,9-di-(lower alkoxy)-decatetraene - (1,3,7,9) - yne - 5 at both ends with an 8 - [21,61,61 - trimethyl - cyclohexen-11-yl] - 2,6 - dimethyl - 1,1 - di - (lower alkoxy)-octatriene-2,4,6, treating the resulting 1,26-di-[21,61,61 - trimethyl - cyclohexen - 11 - yl] - 3,7, 11,16,20,24 - hexamethyl - 8,10,10,17,17,19-hexa (lower alkoxy) - hexacosaoctaen - (2,4,6,11,15, 20,22,24)-yne-13 with an acidic agent, reducing the resulting 1,26 - di - [21,61,61 - trimethylcyclohexen - 11 - yl] - 3,7,11,16,20,24 - hexamethyl - hexacosadecaene - (2,4,6,8,11,15,18, 20,22,24) - yne - 13 - dione - 10,17, to 1,26 - di-[21,61,61 - trimethyl - cyclohexen - 11 - yl] - 10, 17 - dihydroxy - 3,7,11,16,20,24 - hexamethylhexacosadecaene - (2,4,6,8,11,15,18,20,22,24)-yne-13 and treating the latter with aqueous or non-aqueous hydrohalic acid so as to cause formation of two additional double bonds and effect allyl rearrangement.  The initial condensation may be effected between 0 DEG  and 50 DEG  C. in the presence of a condensing agent, e.g. boron trifluoride etherate, zinc chloride, titanium tetrachloride, ferric chloride or stannic chloride.  The condensation product may then be heated with acetic acid p-toluene-sulphonic acid, propionic acid, oxalic acid, sulphuric acid or phosphoric acid or with sodium acetate, zinc chloride or sodium bisulphate to form the dione.  Reduction to the diol may be effected with sodium- or lithium-boron hydride, sodium- or lithium-aluminium hydride, or with a metal alkoxide in an alcohol (aluminium isopropoxide in isopropanol).  The final allyl rearrangement may be effected with aqueous hydrobromic acid in methylene chloride or chloroform.  The process is exemplified in detail.  Starting compounds: C12-dienol diethers: 2,7-dimethyloctadien-2,6-yne-4-diol-1,8 is condensed with methyl magnesium bromide and the resulting 3,8 - dimethyl - 2,9 - dihydroxy - decadiene - 3,7-yne-5 shaken with MnO2 to obtain 3,8-dimethyl-2,9-dioxo-decadien-3,7-yne-5, which with orthoformic acid ethyl ester gives the acetal, which is boiled with acetic anhydride, b -C19-(aldehyde acetals) are obtained by acetalizing 8-[21,61,61 trimethyl - cyclohexen - 11 - yl] - 2,6 - dimethyl - octatrien-2,4,6-al-1.