baber/WOPTO huggingface dataset:
Patent GB-662774-A (GB)
Title: Improvements in the manufacture of electric dry cells
IPC: H01M4/06
Filed: 1949-01-26
Abstract: 662,774. Primary batteries. BURNDEPT, Ltd., JONES, K., and GLATSTER, S. B. Jan. 24, 1950 [Jan. 26, 1949], No. 2158/49. Class 53. The anode of a dry cell consists of an agglomerate of paper pulp fibre, a gelling agent, and a finely-divided metal, for example zinc. In a method of manufacturing the anode a rag or sulphite wood pulp is stirred in water containing starch which is heated to form a viscous suspension. Zinc dust is then added and the mixture stirred until a uniform suspension of the metal and pulp is obtained. This is then moulded into cylindrical form in a filter press comprising a cylindrical mould chamber lined with wire gauze and enclosing a centrallydisposed mandrel. Openings in the bottom of the mould allow water and gel pressed out of the suspension to flow away. Above the mould is a charging cylinder fitted with a piston. The charging cylinder is filled with a measured quantity of the suspension which is forced by the piston into the annular space between the mould and enclosed mandrel. The mandrel and wire gauze are removed with the moulded anode which is then dried. A cylindrical anode may alternatively be made by making the suspension into a sheet and wrapping it round a mandrel. A thin sheet of the suspension may be wrapped several times round the depolarizer with which it is to be used. In a battery of the layer type the suspension may be made into flat form with a metal sheet beside it to serve as a current collector. Instead of starch other gelling agents may be used such as cellulose acetate, pyroxylin, casein, sodium alginate and gums. The anode may be used in a cell employing an electrolyte of caustic potash and a depolarizer of mercuric oxide. Into whatever shape the anode is formed the pulp fibres run generally parallel to its surface.
Patent GB-270209-A (GB)
Title: Improvements in or relating to reversible wringing machines
IPC: D06F45/00
Filed: 1927-01-27
Abstract: 270,209. Cherry Tree Machine Co., Ltd., and Mercer, T. T. Jan. 27, 1927. Folding wringers.-The mutilated pinion c around which the gear wheel of the lower roller is rotated by the handwheel for lowering and raising the folding frame b is rotatably mounted on the turnover shaft d and is rotated into initial engagement with the gear wheel j by the manipulation of a lever f. This lever is slidably pivoted about the boss of the pinion c, which also carries lugs c<1>, c<2> which work in a slot in the lever. The rear end of the lever releases a catch h which holds the machine in normal working position. Movement of the pinion during the raising and lowering of the frame is prevented by the engagement of a lug c<4> on the pinion with a stop a<1> on the stationary frame and by a pin a<2> on the stationary frame working in a slot f<2> in the lever. Specifications 6447/87 and 243,993 are referred to.
Patent GB-663522-A (GB)
Title: Improvements in automatic measuring or/and control systems
Filed: 1948-01-27
Abstract: 663,522. Temperature indicating system. BAILEY METERS & CONTROLS, Ltd. Jan. 27, 1948 [Jan. 28, 1947] No. 2412/48. Class 40 (i). [Also in Group XXXV and XXXVI] Apparatus for controlling and for measuring the magnitude of a variable, wherein a continuous control potential derived from a balanceable network controls the operation of a motive device for effecting the control and/or measurement, includes a voltage generator operating with a permanent magnet plunger arranged to be driven by the motive device and adapted to generate a voltage which increases with driving speed and opposes the control potential so as to prevent hunting. As applied to the temperature of a furnace 1 a thermocouple 4 in heat transfer relation with the furnace is connected in a standard potentiometer circuit including a balancing resistance 5, any D.C. output from the circuit being fed to an A.C. bridge 19 the output of which is of a magnitude and phase sense corresponding to the magnitude and polarity of the D.C. input which in turn depends upon the magnitude and sense of the temperature deviation in the furnace from normal. The output from the A.C. bridge is fed via an amplifier 30 to a phase sensitive motor control circuit 32 which operates a motor 28 in a sense tending to restore the temperature of the furnace to normal by operation of a fuel valve 3, the rate of rotation of the motor being dependent on the magnitude of the D.C. input to the bridge 19. The motor also operates an indicator 48 on a scale 49, and adjusts the balancing resistance 5 so as to rebalance the potentiometer circuit and also operates a circuit 55 which develops a voltage proportional to the speed of the motor 28 and opposing the D.C. input to the bridge 19 so as to prevent hunting. The circuit 55 comprises a solenoid 56 having coils 57 and 58 wound in opposite directions and magnetically coupled to a permanent magnet plunger 59. The voltages produced in both coils due to a movement of the plunger 59 are thus made additive, and the resultant voltage fed to the A.C. bridge from the circuit 55 is of a magnitude depending on the speed of operation of the plunger and therefore of the motor 28 and of opposite polarity to that fed to the bridge 19 from the potentiometer 5 circuit. In a further embodiment, Fig. 2 (not shown), the output from an A.C. bridge including a temperature sensitive resistance is used to control the motor 28 the D.C. output from the circuit 55 then being fed to a converter of the type described in the Specifications 663,521, [Group XXXVI], which converts the D.C. output from the circuit 55 into an A.C. output which is fed in opposition to the output from the A.C. bridge to the amplifier and motor control circuits. The motor 28 also operates an indicator and rebalancing resistance Specification 650,740 is also referred to.
Patent GB-510088-A (GB)
Title: Improvements in or relating to windmill-driven pumping apparatus
IPC: F03D9/00
Filed: 1938-01-26
Abstract: 510,088. Pumps operated by wind motors. ARNOT, G. RAE-. Jan. 26, 1938, No. 2486. [Class 102 (i)] In a wind-mill driven pump discharging on both strokes, the downward stroke is effected by a weight 2, Fig. 1, or by a spring. The pump is of the differential type, comprising a rod 4 of large diameter carrying a bucket 6. Discharge takes place through a valve 12 to a pipe 15 connected to an air vessel 14. The suction pipe 1 is connected to the casing 11, 13, in which the barrel 11 is suspended. In a modification, Fig. 2, the bucket comprises tow heads 16a, 16b of different diameters. The pump may deliver from the upper chamber 8 through a pipe 15, the intermediate chamber being connected to atmosphere through a pipe 19. Alternatively the intermediate space may form the pumping chamber discharging. through the pipe 19. In the latter case the through passage 17 and check valve 18 are dispensed with and the head 16a is provided with a cup-leather which acts as a valve.
Patent GB-792868-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
Inventor: ARMSTRONG WILLIAM
IPC: F16F9/44
Filed: 1955-01-28
Abstract: 792,868. Fluid-actuated valves. ARMSTRONG PATENTS CO., Ltd. Oct. 19, 1955 [Jan. 28, 1955], No. 2568/55. Class 135. [Also in Group XXXII] A double-acting valve assembly for hydraulic shock absorbers comprises a pair of spaced passages 6, 7 leading into a valve chamber 3 on opposed sides of a fixed valve seating 8a, a sheath member 10 mounted in the valve chamber and externally shaped to permit flow of fluid from one of the passages to the seating, a valve member 11 slidably mounted within the sheath member and movable away from its seating by resilient mechanical pressure on the occurrence of a predetermined excess of fluid pressure on either side of the valve seating and means associated with the valve member to provide an adjustable leakage path through the valve member. The valve seating 8a is formed a member 8 screwed into the chamber 3 and provided with a sealing ring 9 and an annular channel 8e open to the passage 7 and through radial passages 8f to a chamber 8b. The valve member 11 has a cylindrical portion slidable in the sheath member 10 and a conical portion co-operating with the seating 8a. The conical portion 11a has a bore 11c opening into the chamber 8b and also connected to radial bores 11d. The smaller end of a tapered peg 12 integral with an adjusting screw 12b cooperates with the bore 11c to limit the leakage path through the valve member. This path is not completely closed when the peg contacts the end wall 11e of the bore 11c. The sheath member 10 is provided with cut-away parts 10b, 10c to connect the passage 6 to the valve seating and is guided by the residual part 10d. The member 10 is screwed into the chamber 3 and has a chamber 10e housing a valve loading spring 16. The spring abuts one or more washers 17 arranged on a projection 18a on a screw plug 18. In place of the washers 17 and the projection, a separate adjusting screw plug may be provided. The spring chamber 10e is open to the oil reservoir at the ends of pistons chambers 4, 5 remote from the passages 6, 7 through passages 10g, 19.
Patent GB-1426072-A (GB)
Title: Cephalosporins
IPC: A61P31/04
Filed: 1973-01-18
Abstract: 1426072 7 - # - Acylaminoceph - 3 - ems BEECHAM GROUP Ltd 17 Jan 1974 [18 Jan 1973 [20 Oct 1973] 2571/73 and 49000/73 Headings C2C and C2P Novel 7-#-acylaminoceph-3-ems of the general formula wherein Py is a 2- or 3-pyridyl group (optionally quaternized), R is an acyl group and R<SP>1</SP> is a carboxylic acid group or a pharmaceutically acceptable salt or ester derivative thereof, and pharmaceutically acceptable acid addition salts thereof are prepared (a) by reacting a 7#- amino-ceph-3-em of the general formula with the appropriate acylating agent; and (b) when R<SP>1</SP> is a carboxylic acid group, by hydrolysing the corresponding ester; followed optionally by salification. Novel t-butyl 7#-amino-3-(2- or 3-pyridylmethyl)-3-cephem-4-carboxylate is prepared by reacting benzyl 6#-triphenylmethylamino)penicillanate with 1-bromo-3-(2- or 3-pyridyl)-prop- 2-yne hydrobromide, treating the resulting 1- (1-benzyloxycarbonyl - 2 - methyl - 1 - propenyl)- 3 - triphenylmethyl - amino - 4 - [3 - (2- or 3- pyridyl)prop - 2 - ynylthio]azetidin - 2 - one with potassium permanganate, reacting the resulting 4 - [3 - (2- or 3 - pyridyl) - prop - 2- ynylthio] - 3 - triphenylmethylamino - azetidin- 2 - one with t-butyl glyoxalate monohydrate, chlorinating the resulting 1-(1-hydroxy-1-t-butoxycarbonylmethyl) - 4 - [3 - (2- or 3 - pyridyl)- prop - 2 - ynylthio] - 3 - triphenylmethylaminoazetidin-2-one, reacting the resulting 1-(1- chloro - 1 - t - butoxycarbonylmethyl) derivative with triphenylphosphine, refluxing the resulting (1 - (1 - t - butoxycarbonyl - 1 - triphenylphosphoranylidenemethyl) derivative with piperidine, refluxing the resulting 4-(3-(2- or 3-pyridyl)-2- oxopropylthio) - 1 - (1 - t - butoxycarbonyl - 1- triphenylphosphoranylidenemethyl)- 3 - triphenylmethylamino-azetidin-2-one in dry dioxane and treating the resulting t-butyl-3-(2- or 3-pyridylmethyl) - 7 - triphenylmethylamino - 3 - cephem- 4-carboxylate with p-toluenesulphonic acid monohydrate.
Patent GB-192416-A (GB)
Title: Improvements in compressors
IPC: F04B39/00
Filed: 1923-01-29
Abstract: 192,416. FouchÚe, R., (Representative of FouchÚe, E.). Jan. 27, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Vapour-engines.-In a liquid-piston compressor the compression is effected in a tubular system through which the liquid is forced and withdrawn alternately, heat of compression being absorbed by a liquid flowing around' the tubes. If a volatile liquid is employed as cooling agent, its evolved vapour may be employed in an engine or turbine. In the apparatus shown, compres. sion takes place in a set of tubes 3 extending between plates, adjustable spring-pressed inlet and outlet valves for the gas being provided above the upper plate. Water is forced through a valve-controlled tube 2 by a piston A into the tubes and is withdrawn through a passage G, tubes 18, and a passage H with a non-return valve. A cooling liquid flows through pipes or nozzles q, r, s, t, around the tubes 3, 18.
Patent GB-1389081-A (GB)
Title: Silver halide photographic sensitive element for flash exposure
IPC: G03C1/28
Filed: 1972-01-19
Abstract: 1389081 Photographic silver halide materials FUJI PHOTO FILM CO Ltd 19 Jan 1972 [19 Jan 1971] 2664/72 Heading G2C A photographic process comprises flash exposing and then deveoping a photographic element having a silver halide emulsion layer comprising a supersensitizing combination of (a) at least one sensitizing dye having a reduction potential of from - 0.7 to 1.7 volts with (b) at least one sensitizing dye having a reduction potential of from - 0.7 to 1.7 volts or with (c) at least one substantially colourless compound, dyes (a) and (b) and compound (c) having oxidation potentials which satisfy the following relationship E ox  (dye (b) or compound (c))- E ox  (dye (a)) > - 0.5 volts. A large number of sensitizing dye types which fulfil these limitations is given and include carbo- and dicarbocyanines containing benzoxazole, benzimidazole, benzthiazole, naphthoselenazole, benzoselenazole and quinoline nuclei, and also merocyanines. Examples of the colourless compound given include i) a benzphenol sulphonate substituted by an amide and ii) two pyrimidine or two 1, 3, 5 triazine rings interconnected by a link including two nitrogen atoms and two phenylene groups. The emulsion may also include gold salts, and salts of metals selected from groups II and VIII, the silver halide particles preferably having a mean grain diameter of less than 0.8 microns.
Patent GB-620878-A (GB)
Title: Improvements in devices for use in the construction of cavity walls
IPC: E04G21/16
Filed: 1947-01-28
Abstract: 620,878. Devices for use in constructing cavity walls; casting walls in situ. O'SULLIVAN, E. Jan. 28, 1947, No. 2697. [Classes 20(ii) and 20(iv)] Device for preventing plaster, concrete or objects from falling down and collecting during construction in the cavity of a hollow wall comprises a trough member 1 adapted to fit and be supported in the cavity with a channelled handle 6 pivoted to the trough at 7 having a cross-piece 11 and also a stay 12 pivoted at 15 and attached to a slide 13, a releasable stop being provided approximately half-way down the handle to limit the movement of the slide. When used in conjunction with the moulds described in Specifications 550,564 and 594,897 the device is introduced to lie on the wall ties immediately below the mould which is to be used and the cross-piece 11 rests across the cavity.
Patent GB-1131042-A (GB)
Title: Improvements in or relating to ignition torches
Inventor: STONE DENIS
IPC: F02C7/266
Filed: 1965-01-21
Abstract: 1,131,042. Plasma ignitors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 Jan., 1966 [21 Jan., 1965], No. 2734/65. Heading F4F. [Also in Division H5] An ignitor comprises a plasma torch housing a copper cylindrical anode 21 formed with a swirl chamber 23 fed with combustion fuel from an inlet chamber 27 through tangential ports 25A. A copper cathode 33, having a tungsten tip 39, is coaxial with chamber 23 and is slidably mounted in a copper sleeve 35 held in an insulating bush at the rear end of the torch outer casing 38. To ignite the torch fuel is admitted under pressure through pipe 41 and passes to chamber 23 where it forms a vortex system, the inner diameter of which decreases until fuel spills into a return flow port 31 and through passage 36 to outlet pipe 43 fitted with a metering device 45. The core of the vortex is thus at all times devoid of liquid fuel. A switch 53 is then closed and the rod 33 made to contact anode 21 after which it is withdrawn to form an arc. This arc vaporizes the fuel oil swirling in chamber 23 in the vicinity of a discharge port 29 and pressure builds up in the chamber 23. At the same time the arc ionizes the vapour to form a plasma which issues from the port 29. The torch may be modified to pulsate by arranging the rod 33 to reciprocate automatically or by initiating the arc by a high voltage or L.V. high frequency spark so that the rod need not then be retractable. The torch may be used to light the fuel-air mixture in the combustion chamber of a gas-turbine.
Patent GB-1172706-A (GB)
Title: Gauging Device for Machine Tools.
Inventor: STADELE ERHARD
IPC: B23Q17/22
Filed: 1967-01-20
Abstract: 1,172,706. Gauging devices. E. STADELE. 20 Jan., 1967 [4 Feb., 1966], No. 3019/67. Headings B3C and B3K. A gauging device for setting a face, or a bore, of a workpiece comprises a mandrel 2, Fig. 1, adapted to be connected to the spindle of a boring or milling machine via an overload preventing device 1, a housing 5 pivoted to the mandrel at 6, a fixed finger 10, for use when setting a face, a pivotable finger 13 for use when setting a bore, and a spring-urged pointer 15 which co-operates with a scale 16, and abuts a flange on the mandrel. In a modification, housing 29, Fig. 5, is rotatable on mandrel 30, and finger 31 is pivotable on the housing. In a further modification, housing 36, Fig. 6, is rotatable and pivotable, and feeler 38 is connected to the housing. The overload preventing device 1, Fig. 7, comprises a housing 41 connected to a pin 42 by a spring 45, the pin being centred in the housing by an extension 44. A spring 47 is soldered to a nipple 49, screwed into the mandrel 2, and supports the housing.
Patent GB-1172652-A (GB)
Title: Rotary Piston Internal Combustion Engines.
IPC: F02B53/00
Filed: 1968-01-19
Abstract: 1, 172, 652. Rotary piston I. C. engines. TOYO KOGYO K. K. Jan. 19, 1968 [Jan. 25, 1967], No. 3070/ 68. Heading F1F. In a rotary piston I. C. engine of the trochoidal n and n + 1 lobe type, to obviate the presence of undesirable combustible matter in the exhaust gases, compressed air is injected into a working chamber B through a passage 9 adjacent an exhaust port 7 by a pump 10, ignition of any residual combustible matter in said chamber being effected by a proportion of fuel combustion products undergoing expansion in an adjacent chamber A flowing therefrom through one or more ducts 11 in a central portion 1 of the housing and/or a duct 11<1> in one or both of the sides 2 of the housing. The or each duct 11<1> may be constituted by either a generally U-shaped passage, Fig. 3A. (not shown), or an open channel, Fig.3B (not shown). Alternatively, the passage 9 is formed in one of the sides of the housing; and a similar passage may also be formed in the other side.
Patent GB-727618-A (GB)
Title: Improvements in or relating to telephone exchange systems
IPC: H04M3/60
Filed: 1953-02-04
Abstract: 727,618. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 4, 1953 [Feb. 4, 1952], No. 3181/53. Class 40 (4). When a transit operator wishes to extend a call, she sets a selecting device towards the wanted trunk or junction so signalling the operator controlling that junction, who, when the junction is free, operates a key to disconnect the junction from the latter operators' position and connects it to the selecting device. The transit operator in one modification uses a dial and a register-controller but as described below uses a key-controlled marker. When extending a call over side T1 of a link SN the transit operator B connects herself to the link by contacts 15, 16 and throws the link key BQ1 and a selecting key Pn pertaining to the wanted trunk or junction. Keys BQ1, Pn bring up a selecting magnet S1 of a cross-bar switch KB which magnet closes test circuits for all links a, b, c, d connectable to the side T1 of the link SN. In the marker M, relay BR1 corresponding to the operator B is energized in series with the selecting magnet S1 to prevent the marker being seized by another operator and to complete a circuit for a relay TRn selected by key Pn and associated with the wanted junction. A selecting magnet, say S11, of switch KA pulls up in series with S1, whereupon a circuit is made for a selecting relay VRp which connects up the operating magnet AM which is associated with both the seized link a, b, c, d and the wanted junction L. Relay VR0 comes up to disconnect the unoperated selecting relays. Operating magnet BM is actuated, and relay NR releases the marker M. The relay LR associated with the line L at the position of operator A is operated over a key AQ2 when junction L is under supervision and lamp AL is lit. When the switches KB, KA switch through lamps AL, BL at the operator's positions A, B, respectively, are flashed. Operator A throws key AQ1 and finds out B's requirements. When the junction L can be lent out, A momentarily throws the key AQ2 corresponding to the junction L. Relay LR releases, lamp AL is extinguished and BL glows steadily to signal operator B to extend the call. When the connection is released, the relapse of operating magnet AM brings up LR to reconnect the junction L to the operators' position A and the lamp AL glows steadily.
Patent GB-750115-A (GB)
Title: Valve base composition
IPC: B60C5/04
Filed: 1954-02-03
Abstract: The body portion of a tyre valve assembly is formed at least in part of a blend of from 0.25 to 50 per cent of a polymer or copolymer of chloroprene and from 99.75 to 50 per cent of a butyl rubber. Specified chloroprene copolymers are those with butadiene, isoprene, styrene and acrylonitrile, but polychloroprene is preferred. Specified butyl rubber components are isobutylene and either butadiene or isoprene.  The usual compounding ingredients may be present and the composition is moulded and vulcanized to the metallic insert.  Specifications 456,294 and 553,732, [both in Group XXXIV], are referred to.
Patent GB-1133999-A (GB)
Title: Curtain runner
IPC: A47H15/02
Filed: 1967-01-20
Abstract: 1,133,999. Curtain runners. F. FELSNER and A. HEITMANN. 20 Jan., 1967 [20 July, 1966], No. 3206/67. Heading A4B. A curtain runner comprises two separable and relatively movable parts 2 and 10, one part 2 having curtain engaging hooks 4 and the other part 10 having three radial arms 11-13 with rail engaging heads of different shapes and/or dimensions. Two similarly shaped, but differently dimensioned arms 11, 12 have lateral projections for engaging tracks of an inverted U-section rail. The third arm 13 has inturned flanges to engage a J-section rail. The headed part 10 fits within the body part 2 by a snap action engagement of trunnions 14 in keyhole slots 5 and is rotatable on the trunnions 14.
Patent GB-1534962-A (GB)
Title: Electrophotographic apparatus
IPC: G03G15/10
Filed: 1976-01-28
Abstract: 1534962 Development unit for electrophotographic processor RICOH CO Ltd 28 Jan 1976 [28 Jan 1975] 03246/76 Heading B2L Development unit for an electrophotographic processor includes a development electrode having a potential which is a function of the average instantaneous potential of the image surface compensate for originals of different density. As shown in Fig. I there is provided a first conductor 8a adjacent the image-bearing drum 1 and a second conductor 8b spaced therefrom with developer supplied therebetween from reservoir 6. In Fig. 5 (not shown) part of the first conductor and the second conductor are disposed within the reservoir. Fig. 6 shows the first conductor in the form of a magnetic brush 27 with the second conductor in the form of a doctor blade 28. In Fig. 7 (not shown) the conductor pair (32), (33) is located upstream of the development electrode (36). The spacing between the conductors and between the first conductor and the drum is proportional to the relative areas of the conductors so that operation is independent of the resistivity of the developer.