baber/WOPTO huggingface dataset:
Patent GB-677687-A (GB)
Title: Improvements in or relating to roller thrust bearings
IPC: F16C19/30
Filed: 1950-09-19
Abstract: 677,687. Roller bearings. BRINKMANN, H. Sept. 19, 1950 [Sept. 22, 1949], No. 22981/50. Class 12 (i). In a self-aligning roller thrust-bearing comprising circumferentially-spaced rollers 19, 20 arranged on each side of a collar 4 integral with a shaft 3, race rings 1, 2 arranged at the outer sides of the rollers, and thrust collars 5, 6 having spherical seatings engaged by convex portions of the race rings 1, 2, each thrust collar is adjustably held in the two-part bearing casing 7, 8 by a ring 11, 12 screwed on the respective thrust collar, and free radial space is provided between the shaft and the race rings and thrust collars. The thrust collars are secured against rotation by springs 13, 14 engaging the rings 11, 12 and lock-nuts 27, 28 are provided. A hole 25 is provided in the upper casing 7 so that the race ring 1 may be observed when the bearing is being secured in position and adjusted, and also for introducing lubricating oil into the bearing. A drain opening 26 is disposed in the lower casing 8. Felt packing-rings 21, 22 are held in position by ring-nuts 23, 24.
Patent GB-352762-A (GB)
Title: Improvements in and relating to a method of and means for weaving coloured damask and other fabrics
IPC: D03D23/00
Filed: 1930-07-30
Abstract: 352,762. Weaving figured fabrics. HARVEY, C. W., 5, Pacific Avenue, Antrim Road, Belfast. July 30, 1930, No. 23046. [Class 142 (iv).] In weaving damasks &c. two warps A, B of different colours, say blue and yellow respectively, and a weft of a third colour, say red, are so interwoven as to cause different proportions of the two warps and the weft to appear at the surface at various points, so that as in the three colour process of printing, combined colour effects resembling the natural colours of objects result such as green, russet brown and orange. In a modification, two wefts and one warp are used. Reference has been directed by the Comptroller to Specification 17590/99, [Class 142, Weaving &c.].
Patent GB-1249804-A (GB)
Title: Molding foamed plastics articles
IPC: B29C44/10
Filed: 1969-05-06
Abstract: 1,249,804. Foamed articles. INTERNATIONAL BUSINESS MACHINES CORP. 6 May, 1969 [15 May, 1968], No. 23046/69. Heading B5A. Foamed articles are moulded by introducing a foamable, exothermic, thermosetting synthetic plastics composition into a mould cavity to fill at least 60% of the volume thereof and closing the mould, and causing foaming so that the article produced has a specific gravity of at least 60%, preferably at least 80%, of that of the unexpanded composition. The mould walls are preferably metal, e.g. aluminium to dissipate the heat of reaction, the mould being heated after closing to at least about 100‹ F. The composition may react to form polyurethane, the ratio of organic polyol : polyisocyanate being 0À95-1À4 by wt., and may contain up to 25% by wt., preferably less than 10%, of blowing agent.
Patent GB-181276-A (GB)
Title: Device for facilitating steering of motor cars
IPC: B62D7/22
Filed: 1921-08-31
Abstract: 181,276. Brierley, J. Aug. 31, 1921. Steering-gear.- A device for returning the steering - wheels to straight - ahead position on releasing the hand-wheel comprises a lever B connected by a pin and slot b to the cross link A and having lugs b<2> engaged by pivoted members C. The members C bear against stops c<2> and are connected by a spring c.
Patent GB-442675-A (GB)
Title: Improvements in liquid seal valves for siphon discharge apparatus
IPC: E03D1/08
Filed: 1934-08-09
Abstract: 442,675. Liquid-seal valves. NICCOLAI, R., 256, Via Cavour, Rome. Aug. 9, 1934, No. 23093. Convention date, Aug. 22, 1933. [Class 135] [See also Group I] A liquid-seal valve for use in connection with siphons for liquid containers such as water-waste-preventers, comprises two substantially U-shaped portions, Fig. 1 one above the other, the upper one opening at one end 8 in a chamber 1 forming part of the lower one and at the other end 10 at a position intermediate the second arm 5 of the lower one, which arm is provided with an overflow 9 ; the arrangement is such that the capacity of the chamber 1 between the levels 7, 8 is at least equal to the combined capacities of the second arm of the upper portion between the levels 7, 10 and of the second arm of the lower portion between the levels 10, 9. The chamber 1 is connected at 6 to a source of gas-pressure and equilibrium is disturbed, when liquid stands at the levels shown, by an increase of pressure, at 6 or a decrease at 9. A second form of valve, for use with water-wastepreventers is shown in Fig. 5, the U-shaped portions being constituted by a chamber 16, passages 19, 21 and by passages 17, 18 respectively, and an overflow being provided at 32 and a pressure-conduit at 15. The valve is placed back to back with the double siphon shown in Fig. 6, in which the spaces above the inlet 11 and outlet 14 respectively communicate with spaces above the conduit 15 and the overflow 32 in the valve. In an automatic form, discharge is effected by increasing the head of water in the cistern and in a manually-operated form, the down pipe 30 which communicates with the outlet leg 14 is provided with a liquid-seal 45, Fig. 3, where it communicates with the closet. The resulting pressure in the leg is released by the operation of a press-button device 46. An air-admission conduit 47 and a sedimentcollecting chamber 38 are provided. In another form, Fig. 12, the seal 45 is dispensed with and the passage 21 communicates with the overflow 32 via a seal 49, 50 ; the pressbutton device is connected by a conduit 52 with a pressure-chamber 51 communicating with the seal. The Specification as open to inspection under Sect. 91 comprises also : (1) the form shown in Fig. 15, (Cancelled) ; (2) a modification of this form wherein a U-bend is placed between the conduit 21 and the overflow 32, which bend communicates with a pressure chamber the arrangement being similar to that shown in Fig. 12 ; and (3) a form of double siphon wherein the entrance to the air-admission conduit is in the form of a U-tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-758070-A (GB)
Title: Improvements in or relating to primary and secondary electric cells
IPC: H01M10/36
Filed: 1951-10-05
Abstract: 758,070. Batteries. BOPP, A. Oct. 5, 1951 [Oct. 6, 1950], No. 23223/51. Class 53. A primary or secondary cell is provided with an electrolyte consisting of a solution of chromium trioxide in sulphuric acid of fifty per cent strength or greater and electrodes that are not attacked when the cell is not delivering current, the proportions of the materials in the electrolyte being such that when current is withdrawn from the cell soluble chromium sulphate is produced. In an example zinc and carbon are immersed in a solution of chromium trioxide in sulphuric acid containing also acetic acid and mercury chloride and in another example lead and carbon are used in a solution of chromium trioxide in sulphuric acid with the addition of nitric acid.
Patent GB-501140-A (GB)
Title: Improvements in or relating to electric switches of the push bar or pull type
IPC: H01R33/955
Filed: 1937-08-25
Abstract: 501,140. Snap-action switches. TURNOCK, Ltd., G., and TAYLOR, W. E. Aug. 25, 1937, No. 23263. [Class 38 (v)] A lampholder incorporates a switch wherein a pushbar 15 has a cam projection 16, either face of which is engaged by a spring urged roller 21. The roller 21 is reduced at its middle part 22 to travel on the cam projection 16 and is connected by a spring 19 which engages a neck 20 in the roller, to the pushbar 15 at point 17. Ends 23 of the roller connect a terminal pillar 10 to a contact 9 which is permanently connected to a contact pin 7. When the bar 15 is moved across, the connection is made until the roller 21 is pressed down sufficiently for it to pass below the lowest point of the cam 16 and ride up the opposite cam surface to break the circuit with a snap. The roller 21 is then stopped by a terminal pillar 8 connected to the other contact pin 7 and a rib 24. Movement of the push-bar 15 through slots 14 in a body 1 is limited by shoulders 28. In a modification, a spring, which presses in a recess in a removable part inside the body, carries a fork holding the contact roller which is pressed by the spring against the cam surface on the push-bar
Patent GB-648502-A (GB)
Title: Improvements in and relating to electromagnetic slip couplings
IPC: F16D47/02
Filed: 1948-09-03
Abstract: 648,502. Electromagnetic clutches. ROBERTSON, D. R., and SAMPIETRO, A. C. Sept. 3, 1948, No. 23302. [Class 35] The co-operating members of an eddy-current clutch have spherical air-gap surfaces 62 and are located axially and radially relatively to each other by a self-aligning bearing 56 concentric with the air-gap, one of the members being mounted on a resilient coupling permitting tilting and lateral displacement. In the form shown, the driving hub 54 which carries the inner race of the bearing is mounted on the driving-shaft 53 and carries an armature member comprising a disc 50 carrying two magnetic rings 59, 60 secured by bolts 61. The driven hub 63, which is splined to receive a shaft 64, carries pins 68 mounted in rubber bushes' 67 and having their ends secured in a driven ring 69 fixed to a magnetic ring 70 in which the outer race of the bearing is secured. A further magnetic ring 76 is secured on ring 70 and encloses a coil 80 for exciting interdigitated poles 78, 79. In a modification, the spherical surfaces are on one side only of a diametral plane so that the coupling may be easily dismantled.
Patent GB-391199-A (GB)
Title: Combined submerged orifice and weir control for percolating filters
IPC: C02F1/00
Filed: 1931-08-19
Abstract: 391,199. Filters. HODGSON, E. S., 1, Gaskell Road, and SHAW, H. V. St. C., 16, Malpas Drive, West Timperley, both in Altrincham, Cheshire. Aug. 19, 1931, No. 23310. [Class 46.] Means for distributing sewage from a central chamber b to a number of filters comprises a number of weirs e and corresponding orifices d in the walls of the chamber, each weir and orifice being provided with a weir-plate and orifice plate which are moved so that when the orifice is open the weir plate is raised and when the orifice is closed the weir-plate is lowered. As shown, the orifice plates are combined with the weir plates, each plate j having an orifice o which can be brought into alignment with the corresponding orifice d. Each plate is raised or lowered by a screwed spindle k rotated in a fixed nut by a hand-wheel n. The liquid is supplied to the chamber b through a pipe a. Liquid passing over a weir e or through the corresponding orifice d enters a chamber f which is in communication with one of the filters through a pipe g. The arrangement is such that normal flow is passed through the open orifices to the corresponding filters, but with abnormal flow the liquid level in the chamber rises and the liquid flows over the weirs corresponding to the closed orifices and is distributed to the remaining filters.
Patent GB-1276202-A (GB)
Title: Improvements in or relating to light display devices and control circuits therefor
IPC: H04N3/14
Filed: 1970-05-14
Abstract: 1276202 Matrix displays LICENTIA PATENT-VERWALTUNGS GmbH 14 May 1970 [19 July 1969] 23334/70 Heading G5C The subject matter of this Specification is substantially the same as that described in Specification 1,276,250, namely a matrix of light sources at the intersections of crossed arrays of conductors and a control circuit therefor wherein a resistor whose resistance drops when the applied voltage or current exceeds a predetermined value replaces the photoconductive element in series with each source.
Patent GB-890164-A (GB)
Title: A guillotine control system
IPC: G05B19/04
Filed: 1959-07-07
Abstract: 890,164. Cutting-machines. MIEHLEGOSS-DEXTER Inc. July 7, 1959 [Sept. 15, 1958], No. 23348/59. Class 31 (1). [Also in Group XXXVIII] A shaft 15 forming part of a guillotine, for example as described in Specification 707,090, which is referred to, can be selectively positioned to any one of six positions under the control of six programme switches 51. If a single switch 51 is moved to the right the shaft 15 rotates until its position corresponds to the actuated switch when, by means of further switches 41, an electromagnetic clutch 36 is de-energized and the shaft 15 stops. If several switches 51 are actuated shaft 15 rotates until it reaches the position corresponding to the first of the actuated switches and then stops. Nothing further then occurs until the switch which has just stopped the shaft 15 is moved to the left whereupon the shaft 15 rotates to the position corresponding to the next actuated switch and so on. Lamps 53 indicate in which position the shaft has stopped and a detent member 43 ensures that the shaft 15 is correctly centred at each of its six stopping positions. A further circuit is outlined whereby the sequencing of the shaft from position to position as set up on the switches 51 can proceed automatically following the completion of certain other operations.
Patent GB-654354-A (GB)
Title: Improvements in or relating to heat-resisting alloys containing cobalt
IPC: C22C38/52
Filed: 1946-08-07
Abstract: A heat resisting alloy has the following composition: C 0.1-0.7 per cent, Cr 12.0-35.0 per cent, Ni 10.0-31.0 per cent, Co 9.0-50.0 per cent, W 2.0-10.0 per cent, Mo 2.0-10.0 per cent, Nb 2.0-10.0 per cent, Si 0.2-1.0 per cent, Mn 0.4-1.0 per cent, Fe, if any, and the usual impurities, the remainder, Mo, W and Nb are present in substantially equal amounts.  Specifications 510,154, 583,212, 591,222 and 622,741 are referred to.
Patent GB-479334-A (GB)
Title: Manufacture of sulphonated coeruleins
IPC: C09B5/18
Filed: 1937-08-26
Abstract: Sulphonated coeruleins are prepared by treating a reduced gallein with an agent which is both a sulphonating and a dehydrating agent, e.g. concentrated sulphuric acid of various strenthhs, oleum and chlorsulphonic acid.  In examples, reduced gallein obtained, for example, by treating gallein with zinc and hydrochloric acid is gently heated with chlorsulphonic acid or 96 per cent sulphuric acid; sulphonation may also be effected with 60 per cent oleum at 0--10 DEG C.  The dyestuffs yield green tints when chromprinted on cotton.  On chromed wool, and natural silk (with chromium lactate) green shades are also obtained.  The dyes form bisulphite compounds with sodium bisulphite which may be separated and dried.  Specification 251,968, [Class 2 (iii)], is referred to.
Patent GB-928410-A (GB)
Title: Improvements in and relating to radar systems
Inventor: WARD LESLIE JOSEPH
IPC: G01S13/44
Filed: 1953-08-25
Abstract: 928,410. Pulse radar. ENGLISH ELECTRIC CO. Ltd. Aug. 19, 1954 [Aug. 25, 1953], No. 23493/53. Class 40 (7). In a radar receiver, signals are received at two wave-guides located on opposite sides of the focal point of the reflector so that the difference in amplitude of the two signals varies approximately linearly with small angles between the reflector axis and the line of sight. As shown, high-frequency pulses are received at waveguides A, B and the sum and difference are produced by the waveguide system 2. The intermediate frequency sum and difference signals are produced at mixers 3, 4, respectively. The sum signals are applied directly to valve 6 while the difference signals are applied to the push-pull circuit 8, 9, 10, the valves 9, 10 of which are switched, at 11, alternately to the load impedance of valve 6. The signals thus produced at x are alternately formed of:- (a) addition of the sum and the difference signals; (b) difference of the sum and the difference signals. The input to the intermediate frequency amplifier and detector 14 is therefore made up of a sequence of pulses having alternately amplitudes equal to twice the corresponding signals at A, B. The output Y of 14 is applied sequentially to the integrating circuits 21, 23, the algebraic sum of the voltages across which has a magnitude and sign corresponding to the direction and angle of sight of the target. The arrangement may be adapted for use in two planes.
Patent GB-1263409-A (GB)
Title: Improvements in or relating to an arrangement for controlling the height of the cutter of a harvesting machine
Inventor: LENZ PETER
IPC: A01D41/14
Filed: 1970-05-15
Abstract: 1,263,409. Combine harvester. KOMBINAT FORTSCHRITT LANDMASCHINE VEB. 15 May, 1970, No. 23586/70. Heading A1F. An arrangement for automatically and manually adjusting the elevator and header height in a combine harvester in response to ground contour variations comprises a header 6 having one or more ground contour sensing tracers 7 pivotally attached to the header 6 at 3, the movement of which relative to the header is transmitted via lever 4 and rope 5 to a transfer lever 8 pivotally supported in a bearing. Springs 9 and 11 provide a restoring force for the tracers 7. Lever 8 also contacts the push rod 20 of contact switch 16 whose base 17 is slidable in guides 19 attached to the machine, the contact being urged by springs 25, the force of which is adjustably counteracted by the displacement of lever 22 settable in a catch bar 24 acting through Bowden cable 21. The predetermined cutting height is set by adjusting lever 22. In operation upward or downward movement of tracers 1 causes switch 16 to actuate. Solenoid valves 34, 35 which cause a change in hydraulic pressure in ram 38, so raising or lowering respectively, the header and elevator. Limit switch 26 breaks the 'raise' circuit when the elevator 18 has reached its upper permitted height. The automatic control can be over ridden at any time by quadic polar switches 31, 32 which raise or lower the header providing semi-automatic control, and switch 33 which cuts out switch 16 and limit switch 26 to give full manual control. A securing lever 15 pivots and locks each tracer up under the header during transport.
Patent GB-1530168-A (GB)
Title: Semiconductor device of the planar epitaxial type
IPC: H01L21/331
Filed: 1976-06-08
Abstract: 1530168 Power transistors SGS-ATES COMPONENTI ELETTRONICI SpA 8 June 1976 [10 June 1975] 23597/76 Heading H1K A power transistor of the planar epitaxial type comprises one or more groups of elementary transistors connected in parallel by emitter, base and collector metallizations, each elementary transistor having a continuous emitter region, e.g. 17 in Fig. 4, comprising a zone 18 contacted by the emitter metallization coupled to at least one active zone by a coupling zone 19, the width and hence resistance of the coupling zones progressively varying from one emitter to the next so as to compensate for the unbalancing effect on the emitter currents of the emitter metallization resistance. The metallization connected base contacts are shown at 21. The described transistor, Fig. 3, consists of three parallel connected and disposed groups 10, 11, 12 each consisting of identical linearly arranged elementary transistors, with external contact to the emitter metallization made at lower left and the base metallization of each group connected via diffused resistors R 1-3  to a common externally contacted metallization. In order to equalize the emitter currents in the individual transistors the resistance of the metallization is compensated for by progressively decreasing the width D from the top to the bottom transistor in each group and the valves of resistors R 1  to R 3  are chosen so that the sum of the voltage drops between the external base contact and the base of the nearest individual transistor and between the external emitter contact and the nearest individual transistor of each group is the same. The exact conditions to be met are discussed in detail.
Patent GB-1073793-A (GB)
Title: Improvements relating to steam turbines
Inventor: BRAZIER PETER HARDING
IPC: F01D25/32
Filed: 1963-06-13
Abstract: 1,073,793. Steam turbines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 26, 1964 [June 13, 1963], No.23608/63. Heading F1T. A steam turbine has an annular moisture separation chamber 4 situated between stages 2, 3 and having an axial length not less than three quarters of its radial width. Guide vanes 6, 9 respectively at the inlet to and the outlet from the chamber 4 have heat drops therethrough and the vanes 6 are inclined such that the swirl velocity in the chamber is at least 250 ft. /sec. at normal turbine speed. Moisture is thus thrown off through passage 7 into a second annular chamber 8, whence it flows to the feedwater heaters and the condenser of the plant, Fig. 3 (not shown).
Patent GB-982405-A (GB)
Title: Improvements in or relating to printed circuit panels
Inventor: STEIN SIDNEY JACOB
IPC: H05K1/02
Filed: 1961-06-29
Abstract: 982,405. Printed circuits. INTERNATIONAL RESISTANCE CO. June 29, 1961, No. 23625/61. Heading H1R. [Also in Division H2] A printed circuit panel carries the same electrical circuit on opposite sides of a base plate of insulating material, both circuits being connected together in parallel relationship. A flat base plate 12 of plastic, glass or ceramic is provided on opposite sides with two patterns 14, 14<SP>1</SP> of electrically conductive material, each pattern comprising a set of conductors 18, 18<SP>1</SP> and terminal areas 16, 16<SP>1</SP> respectively which are formed by vacuum deposition, spraying or brushing of conductive inks, or chemically or electrically etching sheets of copper bonded to the base. The terminal areas of the respective patterns 14, 14<SP>1</SP> are in alignment with each other and are each provided with a pair of spaced holes 20 which extend through the base. Connection between two opposite terminal areas is effected by a metallic U-shaped pin 22 whose arms 24 pass through the holes 20 and are soldered to the terminal areas by solder 26, 26<SP>1</SP>. Thus components 28, electrically and mechanically connected between the pins 22, are connected together in the desired circuit by two identical, parallel conductive patterns, and each of the components' terminals will have four separate connections to the overall circuit pattern. The pins 22 may have more than two arms and the electrical conductors 18, 18<SP>1</SP> may be arranged so that they are not in direct overlapping relation such as 18a, 18b. In the modifications of Figs. 2, 3 (not shown), the terminal areas are made up of two separate terminal portions connected in series or parallel, each of the arms of the pin 22 extending through a separate one of the terminal portions thus preventing a meniscus of solder from forming between the arms of the pins on dip-soldering.