baber/WOPTO huggingface dataset:
Patent GB-1059051-A (GB)
Title: Magnetic contact device
Inventor: WOODHEAD HARRY STANLEY
IPC: H01H51/28
Filed: 1965-05-14
Abstract: 1,059,051. Electromagnetic relays. STANDARD TELEPHONES & CABLES Ltd. May 14, 1965, No. 20432/65. Heading H2B. A sealed magnetic contact device has its armature 12 biased by a leaf spring 15 and centrally rockable on a projection 18 of a magnetic channel-shaped member 16, 17, the sides 17 of which extend along the inner face of the glass container 1 to act as flux collectors for the armature. Member 16 is carried on a non- magnetic strip 8 which supports and stresses the biasing blade spring 15 and forms a backstop 11 for the armature 12. The strip 8 is butt welded to a magnetic terminal strip 3 which is sealed into the container 1. The fixed contact strip 2 is also provided with a channel-shaped magnetic member 9, 10 to act as a flux collector. The end of the contact strip 2 is curved about an axis normal to the axis of the strip (Fig. 4, not shown) and the contacting end of the armature has two curved surfaces perpendicular thereto (Fig. 5, not shown) providing double point contact. In manufacture the strips 2, 3 are one piece of magnetic material and a ring 27 is used to retain the parts during setting of contact gap and spring bias and whilst the container 1 is sealed. The ring 27 is then removed and the connecting part 26 of strips 2, 3 is also removed.
Patent GB-643165-A (GB)
Title: Improvements in and relating to methods of forming selenium rectifiers
IPC: H01L21/14
Filed: 1947-07-29
Abstract: 643,165. Dry-contact rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. July 29, 1947, No. 20442. Convention date, July 31, 1946. [Class 37] A selenium rectifier cell is formed by the passage of pulses of electric current in the blocking direction having a crest potential of between 110 and 220 volts, whilst being maintained at a temperature of between 60-100 C. In the preferred embodiment the cells 2 are placed upon a common base terminal 5 and between terminals 6, 61, 6<SP>11</SP>, &c. Heated water is circulated through terminal 5 from a tank 10 containing a heater 12, by a pump 8. Resistors 19 are in series with electrodes 6, 6<SP>1</SP>, &c., and the electric current is supplied by conductors 15, 16 connected to the secondary of a transformer 17 in series with a rectifier 18. Specification 564,244 is referred to.
Patent GB-583042-A (GB)
Title: Improvements in or relating to felt hardening machines
IPC: D04H17/00
Filed: 1943-12-07
Abstract: 583,042. Felt. KINGSTON, W. H., and BYWATER, Ltd:, W. Dec. 7, 1943, No. 20452. [Class 42 (ii)] A machine for hardening felt between a pair of steamheated superposed tables has, for at least one of the tables, devices capable of affording a variety of motions to the table through means adjusted by rotation in the plane of the table. In operation, the upper table 18, Fig. 3, is supported by the lower table 19, itself supported by four pedestals 21 arranged as described in Specification 583,063 to allow it free movement in any direction in a horizontal plane. Each table receives positive motion from four driven shafts 10 connected eccentrically to driving shafts 3 by adjustable devices 9, Fig. 4, wherein a nut 12 passed into the flange 13 of a shaft 10 slidable on the head of a shaft 3 throws the shaft 10 out of vertical alignment with the shaft 3 upon rotation of a screw 11. The tables 18, 19 are connected by brackets' 29 and bearings 28 to the shafts 10, Figs. 3 and 6. Bearings 28 are adjustable within the brackets 29 and have rectangular holes 27a which may be provided with guides 27 upon which slide dies 5 secured on sleeves 24 on shafts 10. Instead of dies 25 cams or discs may operate in the holes 27a. In another modification, the shafts 10 may be common to both tables. Racks 35 may be provided to raise the upper table 18. The two tables may operate at different speeds.
Patent GB-461616-A (GB)
Title: Improvements in golf club shafts
IPC: A63B53/00
Filed: 1935-07-18
Abstract: 461,616. Golf clubs. HICKEY C. C. July 18, 1935, No. 20453. [Class 132 (ii)] A golf club is bent at A, substan tially one-third the way down the shaft, with the concavity in the forward direction. Specification 419,317 is referred to.
Patent GB-713013-A (GB)
Title: Air conditioning system
IPC: B64D13/06
Filed: 1951-08-30
Abstract: 713,013. Air conditioning systems. GARRETT CORPORATION. Aug. 30, 1951 [Sept. 2, 1950], No. 20476/51. Class 137. [Also in Group XIII] An air conditioning system comprises air compressing means ; means for conducting air under pressure from the compressing means to an enclosure; means for cooling the air prior to delivery to the enclosure, including means for cooling the air by converting energy therein into mechanical energy ; bye-pass means around the energy converting means ; and means for controlling the bye-pass means in accordance. with a predetermined load condition on the compressing means. As shown in Fig. 1, a primary compressor 10 draws in air through an in'et 12 and de'ivers it to an aircraft cabin 16 partly through a conduit 13 and partly through a conduit 14 which has a valve 29 under control of a thermostat 32. Air passing through the conduit 13 is cooled in a first heat exchanger 19 and then passes through a secondary compressor 23 and a second heat exchanger 18. From the heat exchanger 18 the air passes through a mechanical energy converter 21 where it is further cooled or in certain conditions through a bye-pass conduit 27 which has a valve 28 also controlled by the thermostat 32 and finally through a device 24 for removing condensed water and into the cabin 16, mixing with air supplied through the conduit 14. A control 34 responsive to the pressure differential between the inlet and outlet of the primary compressor 10 is arranged to override the control of the thermostat 32 on the valve 28 in the byepass 27 and to prevent overloading of the primary compressor 10 opens the valve 28 when the pressure differential reaches a predetermined value, A conduit 25 with a valve 26 is arranged to bye-pass the secondary compressor 23 and is arranged to open during the opening of the valve 28. The converter 21 is adapted to drive the secondary compressor 23 and fans 38 and 39 are provided to give a flow of cooling air through the heat exchanger 18 during times of low ram pressure or when the aircraft is on the ground. In a modification (Fig. 2) the first heat exchanger is dispensed with and an aftercooler 40 is placed in the conduit between the heat exchanger 18 and the mechanical energy converter 21, the cooling air for the cooler 40 being exhausted air from the cabin 16 supplied through a conduit 41. This flow of air is controlled by a valve 42 which is arranged to be opened manually or automatically when the aircraft is on the ground for example by electrical means operated by the lowering of the landing wheels of the aircraft.
Patent GB-404963-A (GB)
Title: Improvements in and connected with the construction and arrangement of aeroplane wings
IPC: B64C3/56
Filed: 1932-07-20
Abstract: 404,963. Aircraft wings. MARTIN, J., Martin's Aircraft Works, Higher Denham, Buckinghamshire. July 20, 1932, No. 20520. [Class 4]. An aeroplane wing is built on a single spar comprising three continuous tubular booms 1, 2, 3 extending right across the fuselage or connected rigidly to a central stub section also comprising three booms 1a, 2a, 3a extending through the fuselage. The spar is braced by tubular members 5, 6 having flattened ends secured by set screws engaging nuts brazed to an internal sleeve as described in Specification 334,021, [Class 4, Aeronautics]. The wings may be folded by hinging about joints in the two rear booms 2, 3, the forward boom having a spigot joint secured by a pin. This pin may have a screwed portion 25, Fig. 4, which can be turned to withdraw or insert the pin by a handle 28 extending through the leading edge of the wing. The bracing of the stub section may be omitted at the parts passing through the fuselage to reduce internal obstruction. The booms may be rigidly fixed to the fuselage frame or the whole wing may be tiltable during flight about the lower rear boom 3 the other booms passing through arcuate slots and being movable by screw gear. The spars taper towards the wing tips on all three faces. Instead of forming direct continuations of the members 1a, 2a, 3a, the booms 1, 2, 3 may be connected thereto by inclined intermediate members where it is required to fair the wing surface into the fuselage.
Patent GB-499499-A (GB)
Title: Improvements in or relating to shedding mechanism for circular looms
IPC: D03D37/00
Filed: 1937-07-24
Abstract: 499,499. Circular-loom shedding-mechanism. HALE, F. C. July 24, 1937, No. 20525. [Class 142 (ii)] The warp threads 1, 2 pass through healds 6 arranged in sets each supported by rings 5 which permit of free circumferential movement of the healds and the warp threads are pressed radially for shedding purposes by plates 17 carried by radially guided slides 18 operated by cams 23. The set or sets of healds 6, which are free to be moved by their warp threads is determined by stops 7 under the control of cams 11 in the rotating frame 12. This frame 12, by means of the rollers 28, 29, causes the rotation of the spider 25 carrying the cams 23. The plates 17 overlap each other and may be bent as shown in Fig. 3. Specification 465,609 is referred to.
Patent GB-903737-A (GB)
Title: Parallel vise
IPC: B25B1/10
Filed: 1961-06-07
Abstract: 903,737. Vices. FRANKEL, M. June 7, 1961, No. 20563/61. Class 61. A parallel vice comprises two fixed jaws 1, 2 facing each other, three or more parallel guide bars extending between the jaws 1, 2 and arranged to define the corners of a prism, a movable jaw 4 slidingly guided on the guide bars and having two working faces which are turned towards the working faces of the jaws 1, 2 respectively and a screw spindle 5 for moving the jaw 4 towards or away from either fixed jaw. As shown, four guide bars 3 are provided, the screw spindle 5 being disposed within the prism defined thereby. The spindle 5 is screwed into a corresponding tapped aperture of the movable jaw 4, the unthreaded ends passing unconnectedly through the fixed jaws 1, 2 and having handles 6, 6a connected to them. The working surfaces of the jaws 1 and 4 are provided with upright hemispherical recesses 7, 8 for holding cylindrical work, horizontal rabbets 10 being provided in the jaws 2, 4 and a horizontal V-groove in the jaw 2. Vertical slots 12 and prismatic grooves 11 are provided in the jaws 2, 4.
Patent GB-1473096-A (GB)
IPC: G01V11/00
Filed: 1973-05-01
Abstract: 1473096 Borehole logging SCHLUMBERGER Ltd 1 May 1974 [1 May 1973] 20611/73 Heading G1N [Also in Division G4] The invention relates to processing borehole logging data to provide more accurate estimates of water-saturation and permeability. The Specification establishes relationships between the parameters used in the estimation, which relationships are used in successive checks and with empirical values to improve the accuracy. Figs. 3, 4a, b (not shown) are flow-diagrams for carrying out the process in a digital computer. In the first stage (Fig. 3) minimum values of Rw/R t  (the resistance of connate water/to clean formations) are determined and a factor dependent on the magnitude of this ratio is used to compute (Rw/R t ) max. In the second stage, (Figs. 4a, 4b) the above values are corrected for hydrocarbon density Ch, the presence of shale and the estimated value of reducible water saturation, in accordance with equations set out in the Specification. The appropriate steps, and need for correction are determined by decision elements according to value of the data relative to a empirical value.  Alternatively, an analogue computer may be used as illustrated in the data flow diagrams, Figs. 5, 6A, 6B (not shown). Details of the computer blocks for carrying out the correction processes (which may be called for in the main flow line), are given in block-diagram circuits Figs. 7 and 13 (not shown).
Patent GB-585719-A (GB)
Title: Improvements in and relating to clamping apparatus employed in monolithic concrete building construction
IPC: E04G17/00
Filed: 1943-12-10
Abstract: 585,719. Casting concrete walls in situ. BRADBURY & SONS, Ltd., J., and POWELL, A. D. Dec. 10, 1943, No. 20678. [Class 20 (ii)] Clamping apparatus for resiliently connecting together two shutters a, b and for providing means to move them horizontally into and out of the casting position, comprises a clamp 1 fixed to the shutter a, a clamp 2 fixed to an extension of the shutter b, a curved leaf spring 13 and cam means 18 for straightening the spring. The shuttering is raised course by course by lifting apparatus, described in Specification 583,948, associated with a beam 21. The beam 21 is so connected to the clamps 1, 2 and slidably mounted on a post 23, that it has limited universal movement in relation to the clamps and to the lifting apparatus. The spring 13 is pivotally mounted, with slight play, to the clamp 1 at 14 and to an angle member, 11, fixed to the clamp 2, at 15. In use, the shuttering is placed around the site with the clamping apparatus at each corner. The cam 18 is turned to straighten the spring 13 and move the shutter a inwards until it comes into contact with the upper part of the wall previously cast ; further straightening of the spring causes the pivot 15 to move to the left which brings the shutter b into casting position. The clamps 1 and 2 have corresponding clamps at the lower edges of the shutters and the pairs of clamps 1, 1 and 2, 2 are connected by bolts 4 and 7 and nuts 5 and 8. Curved cantilever springs 19 help to distribute the pressure of the cams over the shutter b.
Patent GB-935522-A (GB)
Title: Improvements relating to internal-combustion operated free-piston gas generators
IPC: F02B71/00
Filed: 1961-06-08
Abstract: 935,522. Free-piston gas generators. SOC. CIVILE POUR L'ETUDE D-ENGINS A PISTONS LIBRES EPL. June 8, 1961 [June. 8, 1960], No. 20680/61. Class 7(1). In an opposed piston free-piston gas generator cushion spaces 12, 12<SP>1</SP> are supplied with compressed air through ports 7, 8 respectively which are uncovered by the pistons when at their inner dead centre positions. The ports 7, 8 are positioned to be uncovered by the motor pistons in the outer dead centre position in the case of a long operating stroke. The compressed air is supplied through coolers 20. The spaces 25, 25<SP>1</SP> are provided with valves 26, 26<SP>1</SP> which discharge to atmosphere.
Patent GB-499820-A (GB)
Title: Improvements relating to telephone systems
IPC: H04Q3/00
Filed: 1937-07-27
Abstract: 499,820. Semi automatic exchange systems. SIEMENS BROS. & CO., Ltd., and HENSLER, 13. A. July 27, 1937, No. 20723. Drawings to Specification. [Class 40 (iv)] In a system employing A.C. signalling over junctions, the receipt of a supervisory signal energizes in turn a pair of slow-operating relays of which the first severs the junction beyond the signal receiver and the second prepares a circuit for giving the appropriate indication when the signal ceases. At a tandem exchange the supervisory signals are repeated by direct current over the operator's connecting circuit to give through supervision. A recall signal which is of different frequency from the supervisory signals does not bring about severance of the junction. The system described is identical with that shown in .Figs. 1-3 of Specification 499,821. Specification 499,832 also is referred to.
Patent GB-838265-A (GB)
Title: Improvements in steam boilers for marine use
IPC: F22B1/02
Filed: 1958-06-27
Abstract: 838,265. Vertical steam boilers. HUET, A. June 27, 1958 [June 27, 1957], No. 20744/58. Class 123 (2) A steam boiler for marine use, in which variations in inclination caused by the ship movement do not affect the water level, consists of a number of units such as that shown in Fig. 1. Each unit has an upright, double-walled, cylindrical casing a containing a large number of heat exchanger tubes the space between which is packed with an insulant such as glass wool. Each heat exchanger tube, Fig. 3, comprises an external tube b, which may be corrugated as at c, containing a coaxially-mounted tube d provided with external fins e. A heat transfer fluid, for example, high pressure water or gas or a liquid metal, enters the unit at f and is distributed from a header g to the top inlet tubes i of the tubes b. The fluid leaves the tubes through outlets j, is collected in a header l and leaves the unit through a pipe n for reheating. Water enters the casing jacket q at o and flows downwardly therein. Tubes s convey the partly heated water from the jacket to respective tubes d the bottom portions of which are formed with a velocity-increasing throat t having helical vanes u. The water is preheated in the lower part of the tube which contains a core 1 and evaporated in the upper part which has a helical baffle u<SP>1</SP> which spins the water on to the tube wall, the steam rising along the axis of the tube and discharging through a pipe v to a header wand collector x whence pipes y lead the steam to a superheater or directly to the point of use. Unevaporated water is withdrawn from the tube d through a pipe 3 leading to a separator 4 wherein steam is removed, the water being returned by a pump 5 to the tube inlet. Inclination of the casing does not greatly affect the water levels in the large number of small diameter individual tubes so that the overall level in the casing is substantially unchanged.
Patent GB-264788-A (GB)
Title: Improvements in or relating to the treatment of iron and steel articles
IPC: C25D11/38
Filed: 1926-08-23
Abstract: 264,788. Metals Protection Corporation, (Assignees of Humphries, C. H.). Jan. 25, 1926, [Convention date]. Coating.-Iron and steel articles are rendered resistant to corrosion by treatment with a solution containing chromic acid with or without sulphuric acid. The action is stated to be due to the formation on the surface of an adherent, insoluble mixture of iron and chromium oxides and chromates. The process may be hastened by electrolysis. The electrolyte may contain 2 lbs. of chromic acid and ¢ oz. of sulphuric acid per gallon, the articles being connected as anodes for about 5 minutes with a current density of 10 amps. per sq. ft. A solution for treatment without electrolysis contains 2 lbs. of chromic acid and 2-15 oz. of sulphuric acid per gallon and is preferably heated to 100-150‹ F. The articles after treatment are dried, rinsed and again dried in a warm oven. The same solution may be used with electrolysis, the time required being then shorter. The coatings may be heated to 212‹ F. ; they are then adapted to receive coatings of paint or enamel.
Patent GB-224603-A (GB)
Title: Variable electric condensers
IPC: H01G5/38
Filed: 1923-08-15
Abstract: 224,603. Heath. G. W. Aug. 15, 1923. Wireless tuning-apparatus adjustment devices for.-A variable condenser is provided with one or more supplementary movable plates loosely mounted on the shaft 7 which carries the main set of movable plates 7<1>, the supplementary plates being controlled by an independent operating shaft 15 spaced apart from and parallel with the main control shaft 7. In the form shown, a single supplementary plate 12 is provided, having a toothed periphery in engagement with a pinion 16 on the shaft 15, the position of the supplementary plate being indicated on a fixed scale 50 by a pointer 51 on a toothed semicircular plate 52 engaging another pinion 53 on the spindle 15. The reduced end 26 of the main control shaft 7 is mounted in an aperture in the slotted end of a block 23, Fig. 3, and engages a terminal arm 29. The ends of the block 23 are drawn together by a screw 27, and engage with adjustable pressure on the end of the shaft in order to retain it in any position to which it may be adjusted.
Patent GB-1095933-A (GB)
Title: Improvements in alloy steels
Inventor: KENNEFORD ARTHUR SPENCER
IPC: C22C38/06
Filed: 1963-05-24
Abstract: An alloy steel has the following percentage composition:-  .C.0.15 - 0.5 .Mn.0.25 - 3 .Si.1 - 2.5 .Mo.0.5 - 3 .Cu.1 - 3 .V.0.2 - 1 .Al.0.5 - 2 .Fe.the remainder It may be hardened at 1075 DEG C., water quenched and tempered at 500-650 DEG C.  After tempering the steel may be nitrided at a temperature below the tempering temperature.
Patent GB-1312317-A (GB)
Title: Method of manufacturing spherical carbon materials
IPC: C01B31/00
Filed: 1970-04-30
Abstract: 1312317 Spherical carbon material NITTETSU MINING CORP Ltd 30 April 1970 [30 April 1969 (2)] 20850/70 Heading C1A [Also in Division C5] A spherical carbon material is manufactured by mixing and kneading a particulate carbonaceous material with a binder, crushing the mixture, preferably to less than 3 mm. particle size, granulating the crushed mixture with water at not less than 20‹ C., drying, and finally carbonizing in two stages of which in the first the temperature increase is less than 10‹ C. per minute until a temperature at which volatile matter is generated violently is reached, and in the second the temperature is increased to from 600‹ to 1200‹ C. The carbonaceous material is either coal or a material produced by the carbonization of coal or an organic material, preferably coal with a particle size of less than 100 mesh (Tyler Standard) mixed with 15-30% by weight of coke; the carbonaceous material may contain inorganic materials, other than carbon, in amounts up to 30% by weight of the spherical carbon material. The binder is preferably sulphite pulp spent liquor, carboxy methyl cellulose, fine crystal cellulose or waste molasses. Preferably the granulating water is at 20-50‹ C., the particle size of the crushed mixture is less than 3 mm, and the drying is effected at less than 80‹ C. until the water content is about 10% by weight of the product and then at above 80‹ C. to reduce the water content to less than 8% by weight of the product.
Patent GB-597431-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers and aircraft landing gear embodying same
IPC: B64C25/60
Filed: 1945-08-14
Abstract: 597,431. Hydro-pneumatic shock absorbers. AIR-EQUIPEMENT. Aug. 14, 1945, No. 20861. Convention date, June 8, 1940. [Class 108 (iii)] [Also in Group XXXIII] In a shock absorber of the kind comprising two telescopic members, relative displacement of which is effected in one direction by the action of an external force against a yielding medium and in the other direction by expansion of the yielding medium, the speed of expansion being, limited by the throttling of liquid flow between the members, the relative displacement on extension of the shock absorber corresponds to compression of the yielding medium while displacement on shortening of the shock absorber corresponds to expansion of the yielding medium, the latter being contained in an annular space between the two members. In the construction shown, the two members comprise an outer cylinder 1 and an inner cylinder 2, an annular space 1a between which contains the resilient medium in the form of compressed air. The inner cylinder 2 carries a piston 45 having a valve 55 which is normally maintained closed by a spring 48 but which is opened automatically by a protruding stem 56 of the valve on its engagement with the upper head 5 of the cylinder. Liquid is introduced through a spring loaded valve 7 having a stem 12 by which it may be opened from the outside. Air is injected into the annular space 1a by a valve 16 similar to the valve 7 and incorporating a pressure gauge 21. On extension of the shock absorber, liquid flows freely through large ports 37a in a valve 37 carried by the cylinder 2 and air is compressed in the space 1a, the energy stored thereby being expended on the retraction stroke the valve ports 37a then being closed and liquid damping occurring through the. port 37b. An aircraft undercarriage, the retraction and lowering of which is controlled by a shock absorber according to the invention (see Group XXXIII) is described and claimed, the operation being similar to that of the undercarriage described in Specification 518,414.