baber/WOPTO huggingface dataset:
Patent GB-606335-A (GB)
Title: Improvements in and relating to gyroscopic apparatus
IPC: G01C19/38
Filed: 1941-04-26
Abstract: 606,335. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. April 26, 1941, No. 4444/43. Convention date, April 26, 1940. Divided out of 553,094. [Class 97 (iii)] Gyroscopic apparatus, particularly air-borne gyroscopic compasses, are provided with equal and oppositely directed air jets for applying damping or erecting torques to the gyroscope, and a pendulum for controlling the torques applied by the jets, the pendulum being pivotally mounted on the gyroscope and having means for dividing each of the air jets into two streams in order to exert different torques. As shown applied to an air-borne gyroscopic compass resiliently supported as described in Specification 553,094, and wherein one side of the rotor casing 25, 25<1> is attached to an horizontal hollow stem 32 mounted in air-bearings 34, 35 carried by the vertical ring 20 as described in Specification 606,334, a pendulum 44 is pivotally supported on the hollow stem by means of airbearings and dips into an oil container 47 attached to the rotor casing 25, 25'. United to the pendulum are oppositely directed tubes 50, 51, Fig. 3, which direct air jets differentially against knife-edged baffles 53, 53<1> projecting into circular channels 49, 49<1> moving with the rotor casing. Relative tilt between the pendulum and the rotor casing thus results in an unbalanced torque about the vertical axis, thereby reducing the tilt and damping the compass. Air entering the channels 49, 49<1> imposes substantially no torque on the rotor and emerges through an opening at the top of the channels. When the relative tilt exceeds a predetermined amount in either direction, the air jets are completely cut off by the inner walls 60<1> of the channels.
Patent GB-1001981-A (GB)
Title: Variable speed gearing for driving machine components
IPC: F16H3/20
Filed: 1963-02-05
Abstract: 1,001,981. Drawing machines. SOC. N. SCHLUMBERGER & CIE. Feb. 5, 1963 [Feb. 22, 1962], No. 4607/63. Headings DID and D1N. [Also in Division F2] Drawing, combing and like machines are provided with a change speed gear giving accurate through slight variations in speed ratio between an input and an output shaft and comprising gears 26a-26i fast on an output or input shaft 2 and of the same diameter but having different numbers of teeth which are selectively meshed by a gear 31 which is axially slidable on an input or output shaft 1. A disc 37 is fast with the gear 31 and engages grooves 38 formed between adjacent pairs of the gears 26a-26i to lock the gear 31 in mesh with the selected gear, and to permit change of gear, the shaft 1 is supported in a frame 3 by means of a self-aligning bearing 11 at one end allowing pivotal movement of the shaft 1 and by a bearing 14 at the other end which bearing rests in a cradle 16 pivotally mounted on the frame 3 and resting on a cam 18 having a full diameter portion which urges the cradle and bearing upwardly into engagement with a headpiece 24 and which has a flat permitting shaft 1 to pivot to disengage the disc 37 from a groove 38. The gear 31 is formed with a knob 33 to facilitate adjustments, and a scale 34 may be marked on the shaft 1 to indicate the required position of the gear 31. To change the gear ratios obtainable gear 31 may be replaced by another gear of the same diameter but having a different number of teeth. Fig. 3 shows an embodiment in which the gears 26a-26i are formed on a driving shaft 2 and engage axially slidable gears on three output shafts 1, 1a, 1b. Fig. 5 shows a drawing machine having receiving rolls such as 54 and feed rolls 72 which are driven by a change-speed gear comprising an input shaft 81 for driving drawing bars (not shown) housed in a head 52, the shaft 81 driving the shaft 1 of the change speed gear (which is similar to that shown in Fig. 1) by means of gear pairs 82, 41. The driven shaft 2 has gears 26a-26h thereon having different numbers of teeth which are selectively meshed by an axially slidable gear 31, a second shaft 1a being provided and having an axially slidable gear 31a also meshing the gears 26a-26h. The shaft 2 drives the feed roller 72 through gears 42, 85-87; and the shaft 1a drives the rollers 54 through chain and sprocket gearing.
Patent GB-604198-A (GB)
Title: Means for reproducing x-ray images
IPC: G02B27/02
Filed: 1945-02-26
Abstract: 604,198. Television ; local viewing. EDWARDS, B. J., and PYE, Ltd. Feb. 26, 1945, No. 4731. [Class 40 (iii)] [Also in Groups XX and XL (a)] A pick-up tube 4 for use in apparatus for reproducing X-ray images comprises an evacuated envelope having an electron gun 5 arranged in a part 4B from which projects a tubular extension 4A of smaller cross-sectioned area within which is a mosaic screen 3 arranged at an acute angle, e.g. 45 degrees, to the axis of the tubular extension and the gun to receive X-rays passing from the X-ray tube 1 through the object 2. A scanning generator and amplifier 6 control the movement of the electron beam over the screen 3 and amplifies the output from the pick-up tube which is fed to a further scanning generator and amplifier 7 for the cathode-ray tube 8 upon which the X-ray image is reconstituted. The pick-up tube 4 may be entirely enclosed in an earthed screen except for a window opposite the mosaic screen through which the X-rays are projected on to the screen. The screen 3 may comprise discrete conducting particles as described in Specification 582,304 or may be constructed of photo-electric material which is responsive to X-rays.
Patent GB-1166688-A (GB)
Title: Improvements in or relating to apparatus for Measuring pH, rH and Resistivity
Inventor: VINCENT LOUIS CLAUDE
IPC: G01N27/07
Filed: 1967-01-31
Abstract: 1,166,688. Electro-chemical analysis. L.C. VINCENT. Jan.31, 1967 [Feb. 10, 1966], No.4747/67. Heading G1N. A device for simultaneously measuring the pH, rH and conductivity of blood, moistened vegetable tissues, or other biological fluids, comprises a probe carrying a calomel electrode, a glass electrode, a platinum electrode and two conductivity measuring electrodes. The electrodes are located within a frusto-conical head of the probe, being exposed at and flush with the flat surface of the head except for the platinum electrode which protrudes slightly. The side of the head is cut away at the location of the glass electrode. A cap having a sample intake tube and an induction tube fits over the head with the end of the induction tube near the glass electrode. The probe is connected to a measuring apparatus including a pH meter, an rH meter and a conductivity meter.
Patent GB-247394-A (GB)
Title: Improvements in bearings for calender bowls
IPC: F16C13/02
Filed: 1925-02-21
Abstract: 247,394. Evans, W. P. Feb. 21, 1925. Lubricant conveyed by mechanical means.-In a bearing for calender rollers, particularly of the gas heated type, the lower bearing brass B has a slot or opening d through which lubricant is supplied to the journal C by a rotary paddle e carried in an oil-well D, preferably of cylindrical shape, in the bearing housing. The paddle is driven by toothed pinions F, F<1>, or friction gearing, rotated by the journal C. The agitation of the lubricant in the oil-well tends to cool it.
Patent GB-509338-A (GB)
Title: Improved sealing means for the joints of self-laying tracks for vehicles
IPC: B62D55/088
Filed: 1938-02-16
Abstract: 509,338. Hinges. VICKERS-ARMSTRONGS, Ltd., DUNLOP RUBBER CO., Ltd., and LACEY, B. W. D. Feb. 16, 1938, No. 4827. [Class 65 (ii)] [Also in Group XXXI] The joints of endless track links 1, 4 having tubular portions 2, 6 connected by pins 5 are sealed by a sleeve or sleeves 7 of yielding material expanded internally into said tubular portions by a rigid body 8 positioned within said sleeve or sleeves. The bore of the sleeve may be tapered and is provided with a groove 9 constituting a seat for the body 8 which is preferably a ball and may be made of steel or synthetic resin or other composition. The ball is larger in diameter than the normal diameter of the groove 9. The sleeves 7 form end stops for the pin 5.
Patent GB-1408713-A (GB)
Title: Telephone system having a plurality of classes of services
IPC: H04Q3/58
Filed: 1973-01-31
Abstract: 1408713 Automatic exchange systems INTERNATIONAL BUSINESS MACHINES CORP 31 Jan 1973 [8 Feb 1972] 4864/73 Heading H4K In a telephone system, during each call the class of service of the calling line is determined and a class of service marking produced, the class of service of the connection required is also determined and a further marking produced, the two markings being used to select in co-ordinate fashion a location in a store, each location storing a binary element indicating whether a connection of a particular class may be made by a caller of a particular class. As shown a PABX determines from the origin of the connection (e.g. a public line, a tie line or a data line) or from the digits dialled, the class of service of the connection by comparison with a class of facility table. A particular PABX extension involved is identified in known fashion and the class of that extension determined from a class of line table. Each class mark appears as a marking on a single wire and the two together select a coordinate location in a compatibility table, which location stores a single bit indicating whether that particular call is allowable. The compatibility table may be consulted more than once using, say, successively dialled digit groups. The compatibility table may also have an additional column corresponding to a line class zero, the bit in each row indicating whether that particular facility has been temporarily withdrawn.
Patent GB-307341-A (GB)
Title: Improvements in or relating to continuously loaded electric cables
IPC: H01B7/14
Filed: 1929-02-13
Abstract: 307,341. Electrical Research Products, Inc., (Assignees of Kemp, A. R.). March 5, 1928, [Convention date]. Continuously loaded cables. - A submarine cable comprising a central conducting core, preferably of copper, built up of a central strand 5, and segmental strands 6. Magnetic loading ribbon 7, such as a nickel-iron alloy, is wound helically around the core so as to leave an annular space which is filled with liquid bitumen 8. A layer 9, preferably of melted rubber, is placed outside the loading 7, and a final covering layer 10 of guttapercha, or of rubber previously treated in water under steam pressure, compietes the cable. In manufacture, the conducting core with the loading ribbon in place, is passed through a vacuum chamber into a container filled with bitumen, and is then forced through a wiper to remove bitumen from the outer surface of the loading. The conductor is then passed to a container filled with melted rubber and to an extrusion machine for applying the final insulation. In modified constructions, a solid central conductor may be used and wire loading. or two or more layers of loading material, may be applied. The cable may be further insulated, and may be protected with armouring or wrappings. Specifications 211,095; 305,085, [Class 87 (ii), Moulding plastic &c. substances], and 307,966, [Class 70, Indiarubber &c.] are referred to.
Patent GB-606001-A (GB)
Title: Improvements in or relating to sealing glands or packings
IPC: F16J9/02
Filed: 1946-02-15
Abstract: 606,001. Packing for stuffing-boxes and pistons. ELECTRO-HYDRAULICS (MESSIER), Ltd., (formerly MESSIER AIRCRAFT EQUIPMENT, Ltd.), SHARP, C. W., and ORLOFF, G. Feb. 15, 1946, Nos. 4881 and 4882. [Classes 122 (i) and 122 (v)] A packing comprises a member 5 of soft resilient material, placed within and protruding from a metallic member 1 which is formed with a deformable lip 3 and engages a stationary member 4 so as together with the soft member 5 to close the gap between the member 4 and a movable member 2 to effect the seal at low pressure, whilst at high pressure the lip is deformed so as alone to effect the seal. Alternatively the lip 3 may be partially deformed at low pressure to close the gap, preventing extrusion of the soft member into the gap, the seal being effected by the lip and the soft member 5. The packing may be applied to a piston or may be secured to a cylinder to seal a piston-rod.
Patent GB-792163-A (GB)
Title: Heterocyclic thiocyanates and isothiocyanates, their inter mediates and methods of producing such compounds
IPC: C07D307/10
Filed: 1956-02-16
Abstract: The invention comprises thiocyanates of the tetrahydrofuran and tetrahydropyran series having the respective formul : <FORM:0792163/IV (b)/1> and the corresponding isothiocyanates.  The 2- and 3-bromomethyl derivatives of tetrahydropyran are also novel compounds.  The thiocyanates and isothiocyanates are produced by heating a corresponding halomethyl compound, preferably the bromide, with an inorganic thiocyanate such as ammonium thiocyanate in a solvent such as dioxane, a mixture of ethyl alcohol and water or a mixture of ethyl alcohol and dioxane.  The 2- and 3-bromomethyl derivatives of tetrahydropyran may be prepared by heating phosphorus tribromide with the corresponding alcohol.  The phosphorus tribromide may be prepared in situ by adding bromine to a solution of phosphorus in the alcohol.  In examples, (1) tetrahydrofurfuryl bromide is added to a solution of ammonium thiocyanate in alcohol and the mixture is refluxed for 20 hours, then poured into water, extracted with ether, dried, distilled to remove ether and then fractionated to obtain 2-thiocyanomethyl-tetrahydrofuran; (2) 2-hydroxymethyl-tetrahydropyran is reacted with phosphorus tribromide in benzene in the presence of pyridine, the solid formed is filtered off and the product distilled to obtain 2-bromomethyltetrahydropyran; the PBr3 may also be prepared in situ; (3) 3-bromomethyl-tetrahydropyran is prepared as in (2); (4) 2-thiocyanomethyl; and (5) 3-thiocyanomethyl-tetrahydropyran are prepared by a procedure similar to (1).  The isothiocyanates may be obtained in the products due to isomerization.  The thiocyanates and isothiocyanates can be used as insecticides and as chemical intermediates.
Patent GB-741574-A (GB)
Title: Improvements in or relating to inductive coil units
IPC: H01F21/06
Filed: 1953-02-23
Abstract: 741,574. Inductors. SIEMENS & HALSKE AKT.-GES. Feb. 23, 1953 [Feb. 23, 1952], No. 4924/53. Class 38 (2). An inductive coil unit less than 2 c.c. in volume freely suspended in the wiring of an electrical circuit having a ferrite or laminated core has its external field substantially limited by an external magnetic return circuit and/or by other screening means., It may have a shell-shaped core 2 with an air-gap 14 in the central. leg around which the coil 1 is placed, coated with conductive material to form a screen 3, and housed in an insulating tube 5 to which terminals 6 are fixed. In a modification, Fig. 2, the cylindrical coil 8 is sandwiched between two cylindrical core parts 7, 12, there being an outer conductive screen 13 and an inner insulating tube 9 to which the leads 10 are fixed and containing an adjustable core part 11. The screen may be of sheet-metal, or a coating applied by spraying, dipping, or in the case of ferrite cores, by a reduction of the surface layer in a reducing atmosphere. The coating may be a varnish containing metal or carbon particles. If the core is conducting it may be coated with varnish or cloth. The core may be impregnated with wax or a thermoplastic or other substance which can be hardened. Several inductors may be structurally combined in one unit of less volume than 2 c.c., preferably than 1 c.c.
Patent GB-470645-A (GB)
Title: Reduction of intermodulation in two-way communication cables
IPC: H01B11/16
Filed: 1936-02-18
Abstract: 470,645. Loading &c. STANDARD TELEPHONES & CABLES, Ltd., and LATIMER, K. E. Feb. 18, 1936, No. 4955. Drawings to Specification. [Class 40 (iv)] Near end intermodulation effects in a twoway cable due to non-linear characteristics of the loading or dielectric material are reduced by using terminal portions of smaller non- linearity for a distance comparable with a wavelength for frequencies falling in the middle of a channel. In a particular case, the amplitude of intermodulation products arising in the type of cable used for a terminal portion may be half that arising in the main portion of the cable, but the near end intermodulation products of the combined cable show a much greater reduction. In a continuously loaded cable the terminal and main portions have the same inductance per unit length, but the magnetic properties of the loading of the terminal portions are different. In a coilloaded cable the coils have the same inductance throughout the cable, but those in the terminal portions have a lower hysteresis factor, e.g. ¢, due to different size or material of the core. Where the dielectric is the factor introducing the intermodulation effects, the capacity is uniform throughout the cable but the dielectric of the end portions has a lower non-linear distortion factor. The Specification contains a mathematical discussion of the problem.
Patent GB-683615-A (GB)
Title: Improvements in and relating to foldable top mechanism for vehicle bodies
Inventor: VIGMOSTAD TRYGVE
IPC: B60J7/12
Filed: 1949-02-23
Abstract: 683,615. Folding hoods. BRIGGS MANUFACTURING CO. Feb. 23, 1949, No. 4964/49. Class 108 (i). A folding hood comprises a front rail section 21 pivoted at 24 to an intermediate rail section 22 which in turn is pivoted at 25 to the rear rail section 23, secured at 43 to the vehicle body. The rear rail is actuated by toggle links 46, 47, and by the ram 51 and the intermediate rail 22 is operated by the link 36 adjustably pivoted at 37 to the vehicle body. The front rail section 21 is operated from an extension 23b of the rear rail 23 by link 27 and the angularly related links 30, 33.
Patent GB-243944-A (GB)
Title: Improved packing for propeller shafts
IPC: B63H23/36
Filed: 1925-02-23
Abstract: 243,944. Patterson, R. G. Feb. 23, 1925. Stuffing-boxes, substitutes for.-In packing for propeller shafts of the type in which a member C slidable on the shaft is pressed against the end of the stem tube by springs &c. F and is caused to revolve by pins L, water is excluded and lubricant retained by means of discs P, of leather or other material, attached to the sliding member and the boss of the propeller and secured together at their outer peripheries. The bore of the member C is flared to permit canting.
Patent GB-1201666-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/56
Filed: 1968-01-31
Abstract: 1,201,666. Internal shoe drum brakes. ALFRED TEVES G.m.b.H. 31 Jan., 1968 [13 April, 19671, No. 5013/68. Heading F2E.  In an internal shoe drum brake of the type in which the end of one shoe bears indirectly on the end of another, independent automatic slack adjusters are interposed between the shoe ends and a lever 1 pivoted at 2 such that movement of the lever in the direction of either shoe tends to effect automatic slack adjustment of that shoe. As described, the lever 1 carries an entraining pin 5 movable in an arcuate slot in a guide disc. Movement of the shoes, e.g. to the left, causes a clockwise displacement of the lever 1 about pivot 2 so that the entraining pin 5 causes clockwise displacement of one of two sectors 8, 9, pivoted on a shaft 14. Clockwise movement of sector 8 causes upward displacement of a catch 6, carried by a member (20) (Fig. 4b, not shown) against the force of a spring The catch 6 engages the teeth 21 of a ratchet 27 attached to the slack adjusting nut 28 which co-operates with a screw 29. If the lining of the left-hand brake shoe is excessively worn, application of the brakes will displace the catch 6 to the next tooth 21 on the ratchet 27 so that release of the brakes will cause tooth 6 to rotate the ratchet 27 and hence the adjusting nut 28, so as to take up the slack. Sector 9 and catch 7 co-operate with the ratchet 27 on the other adjuster when the vehicle is travelling in the reverse direction. The assembly is contained in a casing mounted on the back plate within the brake drum.
Patent GB-447894-A (GB)
Title: Improvements in laboratory apparatus for use in distilling or evaporating operations
IPC: B08B15/02
Filed: 1936-02-19
Abstract: <PICT:0447894/III/1> A laboratory apparatus for use in distilling or evaporating operations comprises a bottle-shaped structure 1 of acid-proof material, its neck connected to a discharge flue 3, provided with an apertured horizontal partition 5 to support a burner 11, tripod 12 and retort, crucible, &c. 13, together with a withdrawable pan 7 accommodated below the partition for collecting condensate from the walls of the structure or overflow from the heated vessel.  The upper surface of the partition slopes to a central opening 6 which accommodates a grate member 8 provided with grooves to enable the condensate or overflow to pass into the pan. An inspection aperture provided with a sliding door is arranged above the partition.  The structure may be made of glass, porcelain, stoneware or ceramic material.
Patent GB-194681-A (GB)
Title: Improvements relating to the manufacture of insulating tubes
IPC: B31C1/00
Filed: 1923-02-22
Abstract: 194,681. Haefely et Cie Akt.-Ges., E. March 9, 1922, [Convention date]. Paper and like tubes.-Relates to apparatus for the manufacture of insulation-tubes by which a web of paper or like material coated with an agglutinant is wound round a rotating mandrel and the tube so formed is consolidated by the pressure and heat of a heated L-shaped presser member bearing upon the whole length of the mandrel. According to the invention, the presser is divided transversely into a number of sections so that it is adaptable for the manufacture of tubes of different lengths by adding or removing one or more sections. The sections a of the presser are suspended parallel to one another on a carrier b which can be raised or lowered with respect to the mandrel c. Each section a carries two pressure shoes d which are adjustable in position in slots e to adapt them to the diameter of the tube to be formed. Each shoe is composed of two parts, an upper part d<1> which is clamped in the desired position in the slot e in the presser limb, and a lower part d<2> electrically heated and loosely attached to the upper part by Z-shaped brackets, or by a ball-andsocket or other universal joint, so as to permit its lower face to adjust itself against the surface of the tube on the mandrel. A plate g extending the whole length of the presser is attached by loops to the parts d<1> of the shoes to distribute the pressure and heat uniformly along the length of the tube.
Patent GB-1072958-A (GB)
Title: Diaminocarboxylic acid esters
Inventor: GARBER JOHN DOUGLAS
IPC: C08L75/04
Filed: 1964-06-04
Abstract: The invention comprises compounds of the formula <FORM:1072958/C2/1> wherein R1 is an alkyl radical of three or more carbon atoms or an aryl, alkaryl, or aralkyl radical or a halogenated alkyl, aryl, alkaryl or aralkyl radical, R2 is a C1- 8 alkylene or alkylidene radical, R3 is a hydrogen atom or the radical -COOR1 with the proviso that when R3 is hydrogen, R1, if alkyl, has from 6 to 14 carbon atoms, and acid addition salts thereof.  They may be prepared by esterification of the corresponding acids of formula H2N.CH2R2CH(NH2)CO2 or HO2C.CH(NH2)R3CH(NH2)CO2H, or an aci addition salt thereof, with the appropriate alcohol or phenol.