baber/WOPTO huggingface dataset:
Patent GB-1183787-A (GB)
Title: Method of Producing a Brazed Wheel having Vanes.
IPC: B23P15/00
Filed: 1968-04-05
Abstract: 1,183,787. Making torque converters; brazing. FICHTEL & SACHS A.G. 5 April, 1968 [7 April, 1967], No. 16536/68. Headings B3A and B3R. In a method of making an hydraulic transmission wheel comprising an outer shell, an inner shell and a number of vanes connecting the shells, the vanes are each coated with a layer of brazing metal prior to assembly of the vanes with the casings and the assembly is heated to melt the brazing metal. In making an impeller for an hydraulic torque converter for an automobile, curved steel vanes 1 having projections 7, 7 on one edge and projections 9, 9 on the other edge and curved fins 4 are coated electrolytically with copper to a thickness of 0À015 to 0À02 mm. and the vanes are assembled between cleaned steel shells 2, 3 and the fins are assembled between the shell 2 and a shroud 5. The projections 7, 7 on the vanes engage recesses 6, 6 in the shell 2 and the projections 9, 9 pass through slots 8, 8 in the shell 3 and are bent down flat against the shell 3. The assembly is placed in a furnace with the impeller axis vertical and the shroud 5 on the floor and melted copper is drawn by capillary action between the projections and walls of the recesses. Little copper remains on the exposed faces of the vanes and fins. Heating is at 1100 C. in nitrogen or other non-oxidizing atmosphere.
Patent GB-561974-A (GB)
Title: An improved building unit and arrangements for utilising same
IPC: E04B2/28
Filed: 1942-11-23
Abstract: 561,974. Structural units. HUGHES, J. O'H. Nov. 23, 1942, No. 16571. Convention date, Nov. 28, 1941. [Classes 20 (iv) and 87 (i)] [Also in Group XV] A structural unit for walls, floors, girders &c., also usable for making sets of children's toys, is of T-shape in cross-section comprising a flange 1 and rib 2, the side faces 3, 4 being concave and the face 5 of the rib convex, the curvature of all three faces 3, 4, 5 being the same, so that the faces fit accurately together in constructing a wall as shown in Fig. 9, or the units may be spaced apart as at 10 to form hollow walls. The segmental spaces 8 between the units may be filled by stone, &c. keys 9 and channelled members 22 may be used in combination therewith. A number of elongated T-section units may be laid side by side and interlocked to form a floor, roof &c., or, as shown in Fig. 19, the units 24 may have recesses 29 to receive supports for floor boards 30. The Specification as open to inspection under Sect. 91 shows in Fig. 22 (Cancelled) an elongated structural unit with chain reinforcement 37 attached exteriorly to the concave sides by hook members 39, 40, or the reinforcement may be suspended in the casting mould so as to be embedded in the unit. This subject-matter does not appear in the Specification as accepted.
Patent GB-436604-A (GB)
Title: Improvements relating to the mounting of electric switches
IPC: H02G3/14
Filed: 1934-06-04
Abstract: 436,604. Switch mountings. BAKER, R. H., and PARSONS, C. W., c/o Kersons Manufacturing Co., Kingsbury Road, Minworth, Birmingham. June 4, 1934, No. 16573. [Class 38 (v)] [See also Group XXXVI] For mounting a switch on a wallbox a the latter is provided with a pair of sockets or plugs c on an insulating block band adapted to receive plugs or sockets h on the switch f, so that the position of the switch and of the cover g carried thereon is adjustable, the plug and socket connections being pushed in until the cover beds down on the wall or box.
Patent GB-312654-A (GB)
Title: Improvements in apparatus suitable for television
IPC: H04N5/222
Filed: 1929-05-29
Abstract: 312,654. British Thomson-Houston Co., Ltd., (Assignees of Kell, R. D.). May 29, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Television.-A picture transmitting apparatus is provided with means for sweeping a beam of light over successive elemental areas of the view, and means for collecting and concentrating the reflected light on to light responsive cells. Light from a source 1 passes through a lens system 3, a scanning disc 4 driven by motor 5, and a lens system 6, and is reflected from the scene 2 and gathered by parabolic reflectors 7, 8 which concentrate it on to light-responsive elements 9, 10 connected to a utilization device such as a radio transmitter 11. A group of reflecting mirrors may replace the parabolic reflectors, the location of these mirrors being the same as if they were the sources of illumination for the scene.
Patent GB-440314-A (GB)
Title: Improvements in or relating to electro-magnetic sound recording and/or reproducing machines
IPC: G11B15/18
Filed: 1935-06-07
Abstract: 440,314. Electromagnetic sound recording and reproducing apparatus. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. June 7, 1935, No. 16598. Convention date, June 9, 1934. [Class 40 (ii)] Relates to electromagnetic sound recording and reproducing apparatus comprising an interchangeable set of spools consisting of a casing 1 and two spools 3, 4 for the sound record carrier, a threaded spindle 5 carrying a nut 6 being driven by gear-wheels 13 from the axle of the spool 3 so as to cause the nut 6 to open one or other of the contacts 7, 8 in the circuit of the motor 9 as soon as the record carrier is reaching the end of its movement. According to the invention, one or, as shown, a pair of contacts 11, 12 are provided in the motor circuit and adapted to be closed by studs 14 on the casing 1 so that the motor circuit is closed only when the casing 1 is fitted to the machine. By employing two such contacts the motor circuit will be opened even on oblique removal of the casing 1. The motor circuit also includes a reversing switch 15, 16, the arrangement being such that when switch 16 is closed switch 15 will be opened and vice versa.
Patent GB-533286-A (GB)
Title: Materials of high secondary electron emission
IPC: H01J9/12
Filed: 1939-06-07
Abstract: 533,286. Electrode materials. RUPP, H. June 7, 1939, No. 16706. [Class 39 (i)] In the production of a material of high secondary electron emissivity, a thin layer of alkaline earth metal is deposited on a base plate of copper silver, or gold, and is subjected to heat or electric discharge in an atmosphere of hydrogen or an electronegative gas such as oxygen, nitrogen or the gases of the halogen group. The layer of the alkaline earth metal may be produced by sputtering or vaporisation. Specifications 474,834 and 523,982 are referred to.
Patent GB-943223-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/10
Filed: 1960-05-11
Abstract: 943,223. Liquid fuel burners. BABCOCK & WILCOX Ltd. May 11, 1960 [May 11, 1959], No. 16710/60. Heading F4T. A liquid fuel burner comprises a main nozzle 21<SP>1</SP> in which the fuel is atomised by steam and an auxiliary nozzle 1 which is disposed within the main nozzle and in which the fuel is atomized by the pressure of the fuel. The main nozzle 21<SP>1</SP> comprises an annular sprayer plate 24<SP>1</SP> having steam and fuel discharge passages 46<SP>1</SP> and fuel supply passages 53<SP>1</SP>, and an annular terminal member 26<SP>1</SP> having a number of bores 511 leading to an annular channel 52<SP>1</SP>. The sprayer plate 24<SP>1</SP> and terminal member 26<SP>1</SP> are clamped by a cap nut 22<SP>1</SP> against a shoulder on a tube 23<SP>1</SP> and a tube 34<SP>1</SP> is screwed into the terminal member 26<SP>1</SP>. Fuel is supplied to the annular space 35<SP>1</SP> between the two tubes 23<SP>1</SP>, 34<SP>1</SP>, and steam is supplied to the annular space 86 between the tube 34<SP>1</SP> and a further tube 85. The fuel and steam are supplied to passages 88, 89, Fig. 3, leading to the annular spaces 35<SP>1</SP>, 86 by passages 90, 91 in a coupling member 64 clamped to the burner by a screw 65 in a yoke 66 pivoted on the coupling member 64. The auxiliary nozzle 1 comprises a sprayer plate and a distance piece clamped by a cap nut to a tubular nozzle body and definining a frustoconical whirl chamber fed by tangential passages and discharging through an axial orifice. The fuel is supplied to the auxiliary nozzle by a tube 67 which communicates with a passage 92 in a body 70 held to an auxiliary coupling 71 by a screw 72 in an auxiliary yoke 73. The auxiliary nozzle 1, supply tube 67, body 70 and auxiliary coupling 71 are displaceable axially within the inner tube 85 of the steam-atomizing nozzle and are secured in set position by a screw 74 engaging a pin 75 slidable in an aperture in the fixed coupling 64 of the steam-atomizing nozzle. An impeller 95 having vanes is mounted on the end of a tube 94 surrounding the fuel and steam supply tubes. In a modification the auxiliary nozzle is rigidly secured in the central aperture of the annular sprayer plate of the steam atomizing nozzle. Specification 579,591 is referred to.
Patent GB-816451-A (GB)
Title: Electrical stand-by unit arrangement for signal-radiating devices
IPC: H05B39/10
Filed: 1956-05-30
Abstract: 816,451. Switching systems for flashing lamp apparatus. SVENSKA AKTIEBOLAGET GASACCUMULATOR. May 30,1956 [June 3, 1955], No. 16731/56. Class 38 (4). [Also in Groups XXXVIII, XXXIX and XL (c)] A circuit for operating a flashing lamp 1 (see Group XL (c)) comprises a saturable reactor 22 connected in series with an alternating current supply and the lamp, the control windings of the reactor being connected in the collector circuit of a transistor 28. The lamp circuit also includes the primary winding of a feedback transformer 25, the voltage at 'the secondary winding of which is applied through a rectifier network 26 and a condenser resistance circuit 27, 29 to the base of the transistor. Due to the feedback circuit the transistor alternates between conductive and non-conductive states at a period dependent upon the time constant of capacitor 27 and resistor 29. The reactor is accordingly periodically saturated so that the lamp is caused to flash. The circuit may be arranged in an apparatus together with a similar circuit, each of which derives from a condenser smoothing circuit 30, 31 a blocking voltage which is applied to the other circuit so that when one is operating the other is blocked. On the occurrence of a failure of the working unit the stand-by unit is unblocked and commences to operate causing the previously working unit to be blocked. Alternative circuits are also described in which a transistor is used in the feedback circuit instead of a saturable reactor and either D.C. or A.C. supplies are provided.
Patent GB-425594-A (GB)
Title: Improvements in and relating to the control of electric circuits
IPC: H03J9/00
Filed: 1933-06-12
Abstract: 425,594. Wireless receiving systems. MAJESTIC ELECTRIC CO., Ltd., Tariff Road, Tottenham, London.-(Assignees of Landon, V. D.) June 12, 1933, No. 16749. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 12, 1933]. [Class 40 (v)] A wireless receiver is remotely tuned by reflecting the tuning capacity into a transmission line, preferably shielded, coupled to the receiver. The aerial 25 is tuned by condenser 28 and inductance 27 which forms the primary of a step-down transformer whose secondary 30 is connected to a transmission line 32. A similar stepup transformer 33, 35 terminates the line and feeds the first detector 37 of a superheterodyne receiver. The primaries and secondaries of the transformers are tightly coupled. A condenser 101 similarly controls the tuning of the local oscillator 115. The intermediate frequency is amplified by valves 46, 56 and detected by a diode 61, whose output across resistances 66, 68 is fed to a potentiometer volume control 73 at the remote point and thence to low frequency amplifiers 81, 84. The grids of valves 37, 46, 56 are connected over resistances 176, 177, 180 to the low frequency output of the diode for automatic gain control. The anode of the oscillator is tied to the screening grids of valves 37, 46, 56. A switch 207 at the remote point energizes the receiver by completing the circuits of the heaters of the indirectly heated valves and also the energizing circuit of the loud-speaker.
Patent GB-616554-A (GB)
Title: Improved method of and apparatus for melting copper and lead alloys
IPC: H05B6/20
Filed: 1946-06-03
Abstract: 616,554. Electric furnaces. TAMA, M., TAMA, M., and HOFF, J. L. June 3, 1946, No. 16769. [Class 39 (iii)] A submerged resistor type induction furnace used for melting high-lead copper alloys, or tin containing high-lead copper alloys has thickness 4, Fig. 2, of refractory block 6, and its surface coefficient of heat transmission so related that the temperature at the cold face of said block is below the melting point of any segregation apt to be formed from the molten charge. In an embodiment a 150 kW. capacity furnace has a block thickness of 4¢ inches, a coefficient of heat transmission of 29 B.T.U./‹ F/ft<2>/hour, and a cold block face temperature of 600‹ F. Blowers force 1,090 cu. ft. of cooling air through the furnace duct whose melting channels are at a temperature of 2,200‹ F. Block 6 has its cold face rammed tight against copper bushing 11 provided with a longitudinal slit 12 to prevent short circuiting.
Patent GB-951322-A (GB)
Title: Improvements in and relating to shelf brackets
Inventor: CLAXTON NORMAN JAMES
IPC: A47G29/02
Filed: 1960-05-12
Abstract: 951,322. Shelf brackets. HARRIS & SHELDON (DISPLAY) Ltd. May 12, 1961 [May 12, 1960], No. 16793/60. Heading A4B. A shelf bracket has a cantilever arm 5 with transverse flange 7 and a plate 8 with oppositely directed flange 10 and a ridge 11, the two parts being connected by a bolt 12 and nut 16 so that the flanges 7, 10 can be accommodated in a channel section frame member 19 and nut 16 tightened to rocket the plate 8 about ridge 11 as fulcrum and spread the flanges to grip in the channel.
Patent GB-1359763-A (GB)
Title: Looper apparatus for strip-material
IPC: B21C49/00
Filed: 1972-04-12
Abstract: 1359763 Feeding webs AETNA-STANDARD ENG CO 12 April 1972 [24 May 1971] 16847/72 Heading B8R A loop forming apparatus comprises a car 12, Figs. 1 and 3, reciprocable along a fixed track 9, an arm 31 adjacent the track and movable between an extended position transverse to the track where it supports strip and a retracted position where it clears the track and the car on the track, and a cam 53 or 54 having a groove 55, 56 and a cam follower 52 mounted on the car and arm respectively so that relative movement between the cam and the follower in one direction moves the arm from its retracted to its extended position and in the opposite direction moves the arm from its extended to its retracted position. As shown in Fig. 1 the apparatus has three vertically spaced tracks 9, each having a car 12. The cars are pulled in the loop enlarging direction, i.e. to the right in Fig. 1, by cables 13 which are pulled at the same rate by drums 14-16, the latter being driven by a shaft 18 via gearboxes 17. The cars are pulled in the loop diminishing direction by the tension in the strip. When the cars travel in the loop enlarging direction the cam follower 52 of the two opposite arms 31 nearest the car enter the end 59, Fig. 8, of the grooves 55, 56. The movement of the cams relative to the followers causes follower arms 51 Fig. 5, to rotate members 35 about the arm A to move the arms towards the extended positions. Conversely as the arm moves in the loop diminishing direction the arms 31 are swung back to their retracted positions. The cam grooves 55, 56 are shaped as shown in Fig. 8 so that the arms 31 move slowly as the cam followers enter the grooves, then accelerate to move rapidly and then decelerate to move slowly as the followers leave the grooves. The follower arms 51 have notches 47, 48 which are engageable with spring biased roller 41 so that the arms 31 are retained in their extended or retracted positions until the rollers are forced out of the notches by the relative movement of the cam and cam follower.
Patent GB-1075382-A (GB)
Title: Improvements in pile driving plant
IPC: E02D13/04
Filed: 1965-04-21
Abstract: 1,075,382. Pile driving. LEONARD FAIRCLOUGH Ltd. April 20, 1966 [April 21, 1965], No. 16905/65. Heading E1H. A pile driving plant comprises a pile leader or frame (A), Fig. 1 (not shown) supported adjacent its upper end at an angle to the vertical by a jib (b) on a crawler excavator/ crane (B) and adjacent its lower end by a hydraulically controlled strut (b<SP>1</SP>) also pivotally mounted on the excavator/crane, the pile (C) being fixed to an upper moving carriage (D) and supported by a fixed lower carriage (D<SP>1</SP>). The pile is driven by a hammer (A<SP>1</SP>) guided by the frame (A). Two pairs of longitudinal rods (a), (a<SP>3</SP>) braced by transverse and diagonal rods form the leader or frame (A) which is substantially square in cross section. The rear rods are pivoted at their lower ends on a base plate resting on the ground.
Patent GB-770605-A (GB)
Title: Improvements in or relating to multistage cascade rectifier circuits
IPC: H02M7/10
Filed: 1955-06-13
Abstract: 770,605. Rectifying. HAEFELY & CIE AKT.-GES., E. June 13, 1955 [March 29, 1955], No. 16932/55. Class 38 (2). A multistage cascade rectifier circuit comprises a row of series connected smoothing capacitors C1, C2 connected across the D.C. terminals and two networks of boosting capacitors and rectifiers C1<SP>1</SP>. C2<SP>1</SP>, G1-G4 and C1<SP>11</SP>, C2<SP>11</SP>, G1<SP>1</SP>-G4<SP>1</SP> connected so as to transfer charge to the smoothing capacitors during both half-cycles of the A.C. supply which is connected at E1, E2 across a transformer winding centretapped at A1. By this arrangement the ripple and voltage loss -are substantially reduced over those obtained with the known single network arrangement of Fig. 1 (not shown).
Patent GB-841305-A (GB)
Title: Improvements in or relating to machines for rolling webs of material
IPC: B65H19/22
Filed: 1957-05-28
Abstract: 841,305. Winding webs. JAGENBERG WERKE A. G. May 28, 1957 [March 2, 1957(2)], No. 16936/57. Class 100(1) In a machine for winding webs on to reels of the type wherein the reels are arranged end to end along a common longitudinal axis, and are peripherally supported by a plurality of rollers, one of which is driven, means are provided for applying an inward axial pressure directly to the reels, such that the reels form a rigid core during the winding operation. As shown, rolls of paper are wound on one or more reels 18 by contact with winding drums 19, 20. The cores are supported by rotatable pins 1 carried by arms 3a pivotally mounted on a fork-line link 4, the arms 3a being counterbalanced by a weight 5. The link 4 can swing about a shaft 6 and has a counterweight 7. The link 4 is displaceable axially on the shaft 6 by a screwed spindle 8 within the shaft 6 to apply axial pressure to the reels. The spindle 8 carries a nut 9 having projections 9a that engage slots 10 in the shaft 6. The spindle 8 is rotated by a crank 12 and locked in desired position by a notched wheel 16 and latch 15. The spindle 8 may be moved axially for insertion and removal of a new reel or reels by a lever 13. In a modification, Fig. 4, not shown, a pin for supporting one end of a core is carried by a sleeve slidable along an arm rotatably mounted on a shaft parallel to the axis of the core by a further sleeve. In another modification, Fig. 6, not shown, a screwed shaft carrying a core supporting pin is carried by a vertically slidable sleeve on a member mounted between rollers carried by the frame of the winding machine.
Patent GB-1460923-A (GB)
Title: Liquid crystal compositions and devices
IPC: G02F1/13
Filed: 1974-04-18
Abstract: 1460923 Liquid crystal composition BECKMAN INSTRUMENTS Inc 18 April 1974 [17 May 1973] 16968/74 Heading C4X A dynamic scattering nematic liquid crystal composition (negative dielectric anisotropy) is essentially constituted by fire compounds, three of the formula A where 0#n#3 and 0#m#5, p-methoxybenzylidene - p<SP>1</SP> - n - butylaniline (MBBA) and pethoxybenzylidene - p<SP>1</SP> - n - butylaniline (EBBA). Each compound A forms 4-80% by weight of the total three compounds A, the latter forming 40-70% (preferably 50-70% or 55-65%) of the total composition by weight. MBBA and EBBA substantially constitute the remainder of the composition, each compound forming 40-70% (preferably 40-60 or 45-55) by weight of the two compounds. Preferably for each compound A, 0#m#3. Dopants may be present in minor amounts, e.g. 0À05 to 0À2% by weight of p-methoxybenzylidene-p<SP>1</SP>-aminophenol and 0À005 to 0À02% by weight of a compound RR<SP>1</SP>R<SP>11</SP> 2 N<SP>+</SP>X<SP>-</SP> where R is a C 10 -C 24  alkyl group, X<SP>-</SP> is a simple acid anion and R<SP>1</SP> is Me/Et, R<SP>11</SP> is Me or R<SP>1</SP>R<SP>11</SP> 2  represents a pyridine ring.
Patent GB-798563-A (GB)
Title: Improvements in the process of replacing active hydrogen by a hydrocarbon group
IPC: C07C69/38
Filed: 1956-06-01
Abstract: Compounds of the general formula: <FORM:0798563/IV (b)/1> wherein R is a hydrogen atom or a hydrocarbon group, R1 is an ester, cyano or phenyl group or a group containing a keto group on the vicinal carbon atom, R11 is an alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl or aralkyl group and X is an organic esterifying group, are prepared by reacting a metallo ester of the general formula: <FORM:0798563/IV (b)/2> wherein M is an alkali or alkaline earth metal, with an alkylating agent R11Y, wherein Y is a halogen atom, or an alkyl sulphate, alkenyl sulphate, aryl sulphate or aralkyl sulphate radical, in the presence of one or more of the following catalysts: dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide.  In examples the following are prepared in the presence of one or other of the above-mentioned catalysts, the sodio derivative of the ester being first formed: diethyl ethyl-1-methylbutylmalonate from diethyl 1-methylbutylmalonate and ethylchloride, ethyl bromide or diethyl sulphate; diethyl 1-methylbutylmalonate from diethyl malonate and 1-methylbuty bromide; diethyl allyl-1-methylbutylmalonate from diethyl 1-methylbutylmalonate and allyl chloride; diethyl allyl- D 2-cyclohexenylmalonate from diethyl-D 2-cyclohexenylmalonate and allyl chloride; diethyl allylmalonate from diethyl malonate and allyl chloride; diethyl diallylmalonate from diethyl allylmalonate and allyl chloride; diethyl isopropylmalonate from diethylmalonate and isopropyl bromide; diethyl ethylisopropylmalonate from diethyl isopropylmalonate and diethyl sulphate or ethyl chloride; diethyl sec.-butylmalonate from diethylmalonate and sec.-butyl bromide; diethyl sec.-butylethylmalonate from diethyl sec.-butylmalonate and ethyl chloride; diethyl n-butylmalonate from diethyl malonate and n-butyl bromide; diethyl n-butylethylmalonate from diethyl n-butylmalonate and diethyl sulphate or ethyl chloride; diethyl isoamylmalonate from diethyl malonate and isoamyl bromide; diethyl isoamylethylmalonate from diethyl isoamylmalonate and ethyl chloride or diethyl sulphate; diethyl dibenzylmalonate from diethyl benzylmalonate and benzyl chloride; ethyl a -ethyl-a -n-propylacetoacetate from ethyl a -ethylacetoacetate and n-propyl bromide; ethyl a -isopropylacetoacetate from ethyl acetoacetate and isopropyl bromide; ethyl a -ethyl-a -benzylacetoacetate from ethyl a -ethylacetoacetate and benzyl bromide; diethyl a -methyl-b -ketoglutarate from ethyl acetonedicarboxylate and methyl iodide; ethyl a -cyano-b -methylvalerate from ethyl cyanoacetate and sec.-butyl bromide; ethyl a  - cyano - a  - ethyl - b  - methylvalerate from ethyl a -cyano-b -methylvalerate and ethyl bromide; diethyl ethylphenylmalonate from diethyl phenylmalonate and ethyl chloride; and ethyl a ,a -diphenylpropionate from ethyl diphenylacetate and dimethyl sulphate.