baber/WOPTO huggingface dataset:
Patent GB-1101808-A (GB)
Title: Image recording
IPC: G03F7/30
Filed: 1965-05-10
Abstract: 1,101,808. Photo-conductive devices. CORNING GLASS WORKS. 10 May, 1965 [11 May, 1964 (2)], No. 19640/65. Heading HlK. [Also in Division G2] A control unit (Fig. 4) for an electrostatic printing apparatus comprises a bundle of light fibres 11 fused between transparent and opaque glass blocks 13, 12 respectively. On the lower face of the assembly are disposed two bus-bars 16, 17 with a series of closely spaced pairs of photo-conductive coatings 19, 20 connected between them via intermediate contacts 18. One photo-conductor 20 of each pair is arranged to be illuminated directly through block 13 and the other by light reflected from a moving typewritten strip through the light fibres (Fig. 1, not shown). The bus-bars and contacts may be made by heating the assembly of glass blocks and fibres to just below the softening point of the glass, spraying with a solution of tin oxide and antimony oxide, annealing, and then cooling slowly and then using photo-resist and etching techniques to form the contact pattern. A photo-resist is applied over the bus-bars and contacts from a colloidal suspension containing specified amounts of cadmium selenide, cadmium and indium chlorides, polyvinyl alcohol and ammonium dichromate and then removed except from areas 19, 20 by photo-resist techniques. The assembly is heat-dried and the cadmium selenide sintered by heating at 600 C. for a minute, followed by a period of cooling in the dark. Strips covering the photoconductive areas are protected by a glass frit before a lower softening point glass frit is applied to the face of the unit. This is then softened and annealed and the glass overlying contacts 18 removed by photo-resist and etching techniques. Alternatively, these contacts are masked during application of the frit. Contacts 18 and the ends of the bus-bars are next electroless-plated with nickel after dipping in a hypophosphite solution and the nickel consolidated by baking. The assembly is finally polished, if necessary, until contacts 18 lie flush with the surface of the protective glass layers. In an alternative arrangement a glass substrate disposed on the lower face of the block assembly carries the photo-conductor assembly.
Patent GB-892594-A (GB)
Title: Improvements in or relating to protective systems for electrical equipment
Inventor: PEARSON EDGAR
IPC: H02H3/14
Filed: 1959-06-09
Abstract: 892,594. Protective arrangements. ASQUITH ELECTRICS (COLNE) Ltd. May 2, 1960 [June 19, 1959], No. 19642/59. Class 38 (4). Electrical equipment such as a portable hand drill 1 has an impedance M6 introduced into the " live " supply lead L1 so that upon the occurrence of a fault, for example an earth fault indicated at X, the casing of the hand drill 1 does not acquire a dangerous potential. The value of the impedance M6 should be at least six times that of the resistance of either the earth connection E1 or the " live " lead L1.
Patent GB-587322-A (GB)
Title: Improvements relating to fasteners for driving belts and the like
IPC: F16G3/02
Filed: 1944-10-12
Abstract: 587,322. Belt fasteners. BADDELEY, C. H., and BLOODWORTH, C. J. Oct. 12, 1944, No. 19656. [Class 80 (i)] A belt fastener comprises a pair of leaves A, B, connected together by a hinge pin F the underside of each leaf having teeth E which are pressed into the ends of a belt X. The teeth of one leaf are inclined towards those on the other leaf. Means such as a projection G on one leaf and a recess H on the other leaf limit the open ing movement of the leaves.
Patent GB-1049903-A (GB)
Title: Deformation recording using electrostatic images
IPC: H04N5/82
Filed: 1964-05-12
Abstract: 1,049,903. Selective printing. RANK XEROX Ltd. May 12, 1964 [May 17, 1963], No. 19657/64. Heading B6F. [Also in Division G2] In a method of forming a deformation recording, electrostatic charges, corresponding to the information to be recorded, are deposited on a recording material by a cathode-ray tube. The recording material has a support layer 51, Fig. 2, coated with conductive material 52, e.g. glass coated with tin oxide, a deformable conductive layer 53 which may be liquid or a solid of low viscosity, an insulating deformable layer 55, e.g. a low melting point plastic, and an insulating support layer 56 bonded to layer 55. A cathode ray tube 57 has a face area 58 which permits the passage of electrons. A heating element 50 supplies sufficient heat to permit deformation of layers 53, 55. In another embodiment (Fig. 3, not shown) a " Charactron " (Registered Trade Mark) tube having pins 63 is used. The electron beam in this case is shaped to form a given character coinciding with a series of the pins 63 to produce a corresponding charge pattern. In another embodiment, Fig. 4 (not shown), conductive liquid 74 is coated on a conductive drum 70 over which passes a web having layers 90 and 91 of insulating material. The image formed between layers 91 and the layer of liquid is viewed by a Schlierien optical system and an image receiving member 88.
Patent GB-320114-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1928-07-06
Abstract: 320,114. Automatic Telephone Manufacturing Co., Ltd., Passmore, W. O., and Beale, C. E. July 6, 1928. Automatic exchange systems.- A final selector is arranged so that (1) the current-reversing relay is disconnected during impulsing to pre. vent its operation from condenser discharges; (2) the connection of ringing current is delayed by the period of operation of a slow release relay to prevent premature tripping of the ringing; (3) the guarding potential is removed for a short period on release to allow the train of switches to fall and is replaced to prevent re-seizure before the switch has returned to normal; and the relay controlling the change over from the vertical to the rotary magnet is re-operated to control the ringing trip and the completion of the speaking circuit. Where hunting takes place arrangements are made for the test relay to operate in two steps, the second step being withheld until the completion of the hunting movement. On seizure relays A, B, C, and E operate in the usual way and the switch is moved to the required position. Relay C disconnects! earth at 21 from the winding of D during impulsing. If the line is busy, busy tone and flash are connected in the usual way. If the line is free, C restores and H operates cutting the line through. Ringing is not connected, however, until E releases after its slow-to-release period connecting ringing at 35, 36. Relay R operates when the called party answers closing a circuit for E which trips the ringing and connects the speaking circuits which allows D to change the direction of flow of current in the calling loop for metering and supervisory purposes. On release A and B fall back removing the guarding earth from 45, but G then pulls up in parallel to the release magnet Z restoring the guarding potential at 46 until the switch is again in its normal position. The usual switch-held alarm is provided. The Specification describes the application of the invention to switches arranged for P.B.X. groups of 2-10, 11-20, and over 20 lines.
Patent GB-1440399-A (GB)
Title: Building panels
IPC: E04B1/10
Filed: 1974-05-04
Abstract: 1440399 Building panels K JOYNT 4 Aug 1975 [4 May 1974] 19716/74 Heading E1B [Also in Division B6] A load-bearing wall panel 16 comprises an outer wooden sheet 46, a wooden framework 40, 42, 44 and an external decorative and insulating coating comprising synthetic resin impregnated with asbestos and perlite. In the embodiment shown, base member 42 of the panel is fixed by coach bolts 62 to a hardwood sill 58, and a sheet of building paper 48 separates studs 40 and sheet 46 which is of resin bonded plywood, a plasticsfoil 52 providing a vapour barrier between the studs and an internal sheet 50 of plasterboard. Glass fibres 54 are arranged inside the panel. Windows may be incorporated in the panel. An undercoat is first used on sheet 46, and comprises inter alia a modified phenolic resin in an oil solvent in combination with Linseed oil. Top coats are then applied, and may include vinyl acetate copolymer resin in water. or a modified alkyd polyester resin in oil. with mica and glass fibres also included.
Patent GB-1423479-A (GB)
Title: Valves comprising slide members for the control of fluid flow
IPC: F16K11/065
Filed: 1974-05-06
Abstract: 1423479 Valves UNITED STIRLING (SWEDEN) AB & CO 6 May 1974 19736/74 Heading F2V In a piston valve cylindrical surfaced PTFE sealing ring 16 backed by rubber ring 17 have an axial dimension greater than that of passageways 10 in the piston 3. The piston has a cavity 9 from which lead two sets of radial passageways 10, 11 which provide the means for interconnecting the passageway 4 with the passageway 5 or 6. Fluid pressure within the cavity 9 when the valve is in use provides a fluid cushion between the surface of the piston and the surface of the sealing ring 16 which prevents the latter being damaged as it slides relatively to the passageway openings 10, 11. Alternatively some or all of the seals may be mounted on the piston 3.
Patent GB-1471891-A (GB)
Title: Mechanical seals
IPC: F16J15/34
Filed: 1974-04-25
Abstract: 1471891 Shaft seals BURMAH ENG CO Ltd 25 April 1974 [25 April 1973] 19758/73 Heading F2B A mechanical end face seal comprising a rotatable element 7 spring urged against a stationary element 8, there being a sleeve 11 between the seal elements and the shaft 6, has at least one insulating spacer, 19, a surface between the stationary element and the casing 5. Further insulation, to prevent electrochemical action, may be provided between the element 8 and casing end 16 as at 20, as a backing for the spring 9 as at 21, by a coating on the sleeve as at 22 and a sleeve 18 surrounding a pin 12 preventing rotation of element 8. The insulation may be ceramic or glass filled P.T.F.E. or the surface may be coated or sprayed with such materials. In a second embodiment the rotating element is insulated from the sleeve.
Patent GB-914935-A (GB)
Title: Organo-silicon acetylides and their production
Inventor: JENKNER HERBERT
IPC: C07F7/08
Filed: 1960-06-03
Abstract: A polymeric organosilicon acetylide may be made by reacting an organodifluorosilane with an alkali metal acetylide.  The polymers contain recurring R2-Si-C­C-units, wherein each R is an alkyl, alkenyl or aryl radical or one R is H.  The reaction is preferably effected in an inert solvent, e.g. diethyl ether, hexane, octane, decane or benzene, and generally between room temperature and 100 DEG C.  In a typical example (1) diethyldifluorosilane was added to a suspension of sodium acetylide in diethyl ether, the temperature being maintained at the boiling point of the ether; the reaction mixture was then cooled, filtered to remove precipitated NaF and freed of solvent to yield a waxy, fusible polymer.  Uses: as lubricants, catalysts and additives for plastics, varnishes and oils.
Patent GB-632405-A (GB)
Title: Improvements in or relating to holders for taps and dies for use in machine-threading operations
IPC: B23G1/46
Filed: 1947-07-24
Abstract: 632,405. Screw-cutting 'and tapping attachments. BEATTY BROS. (TENBURY), Ltd., and TERRY, B. July 24, 1947, No. 19839. [Class 83 (iii)] [Also in Group XXIV] Screw-threading taps and dies are held in a holder comprising a body member 10, 11, a spindle 12 slidable therein, means on one end of the spindle for gripping the tap or die, and coacting interengaging means on the spindle and body adapted to prevent relative rotation between the spindle and body in one direction only and to be disengaged by forward movement of the spindle. The body member, which comprises a tubular cylindrical shank 11 with an integral head 10, is adapted to be gripped by the chuck of a lathe or vertical tapping machine. The spindle is received in the body member and is formed with an integral head 25 recessed at 22 to receive the tool 23 which is locked therein by screws 24. A coiled spring 30 provided in a recess 29 in the body member normally urges the spindle rearwardly into the body.. The head 25 has an integral collar 13 provided with a projection 26 which, when the tool is cutting, is in contact with the claw 18 of a catch plate 17 pivoted in an arcuate recess 14 in the body member; a spring under one corner of the catch plate urges the claw into the path of the projection 26 and prevents rotation, in one direction, of the spindle 12 relative to the body. Relative movement between the spindle and body in the opposite direction is prevented by a key 31 which is pivoted in a recess 32 in the shank of the spindle 12 and urged by a spring 34 into a keyway 37 formed in the inner wall of the body. In operation, the projection 26 engages the claw 18 so that there is no relative movement between the body and 'spindle, but, at the end of forward traverse or downward feed of the body, continued rotation of the latter causes the tool to move the spindle forward and disengage the projection 26 from the claw 18. When withdrawing the tool, relative movement between the body and spindle is prevented by the key 31. The key 31 and the catch plate 17 may be reversed for screwing left-hand threads. In a modification, two catch plates 17 and lugs 26 may be provided.
Patent GB-512355-A (GB)
Title: Improvements in or relating to gyroscopes
IPC: G01C19/44
Filed: 1938-07-05
Abstract: 512,355. Gyroscopic apparatus. HILLIER, A. (Sperry Gyroscope Co., Inc.). July 5, 1938, No. 19892. [Class 97 (iii)] A spherical air bearing supports a casing with three degrees of freedom and the rotor is directly or indirectly supported in the casing with its centre of gravity within the sphere formed by the air bearing means. In the artificial horizon shown in Fig. 1, the rotor 15 spins in ball bearings 16, 17, in a spherical casing 10, which is supported on spherical air film bearings 13, 14 in a pendulously mounted cup 5. Air is forced through the hollow bearings 4, 6 supporting the cup 5 into a passage 9 in the cup. Part is supplied to the bearings 13, 14 and the remainder passes through the passages 20, 21, to the rotor driving jets 18. The air escapes from the casing 10 through tangential jets 22 which are differentially masked, when the casing 10 deviates from the vertical, by the upper edge 23 of the bearing surface 14. The jets 22 with or without an additional set of jets issuing tangentially from the underside of the mirror 1 also serve to limit rotation of the casing 10 by reaction of. the jets 18. As shown in Fig. 3, the ball rotor 25 spins about a vertical axis on an air film bearing in the pendulous spherical segment 33, which itself is supported by an air film bearing in the cup 34. The rotor 25 is also supported at the centre by an air film on a knob 30 at the end of a hollow depending stem 27 down which air is sucked to supply the tangential driving jets 26. The latter are differentially masked by the. lip of the segment 33 to provide an erecting torque when the rotor deviates from the vertical. A horizon line 37, visible through a window 39, is marked on a skirt 38 carried by the rotor. In the gyro vertical shown in Fig. 5, the rotor 15<1> spins in a casing 82 supported by a gimbal ring 83 in a hemispherical bowl 85 The latter is supported on a spherical air film bearing in a cradle 87 which is caused by the inductive controller 70, 98 and motors 73 to follow up the movements of the rotor spin axis. The pendulous bowl 85 is carried round slowly in the direction of rotation of the rotor by air drag and serves to impart an erecting force. Tilt due to the Earth's rotation is corrected by an air jet 103 on a ring 101 which is adjusted in azimath by a compass repeater 104. During accelerations the solenoid 112 is energized causing the sleeve 113 to be raised into engagement with a conical seat 115 at the bottom of the bowl 85.
Patent GB-1055920-A (GB)
Title: Sensitive photographic materials
IPC: G03C1/42
Filed: 1963-03-28
Abstract: 1 : 4 - Di - (chloro-, dichloro- and trichloroacetoxy)benzenes are made by reacting hydroquinone with the corresponding chloracetyl chlorides.  1 - Benzyloxy - 4 - chloro-, dichloroand trichloro - acetoxybenzenes are made by reacting p-(benzyloxy)phenol with the corresponding chloracetyl chlorides.  p - (Chloro - acetoxy)phenol is made by reducing 1-benzyloxy-4-chloro-acetoxy-benzene and p-dichloro-acetoxyphenol by reducing 1-benzyloxy - 4 - dichloro- or -trichloro - acetoxy benzene with hydrogen and palladium-on-charcoal in tetrahydrofuran.
Patent GB-275963-A (GB)
Title: Improvements in or relating to walls constructed of metal tubes
IPC: E04B2/58
Filed: 1927-07-27
Abstract: 275,963. Meiser, J., and K÷hler, W. Aug. 14, 1926, [Convention date]. Piling.-A plurality of ordinary seamless metal tubes continuously and directly interlocked with each other by means of connection members which are formed on each of two oppositelylocated faces of the tubes by a rolling or drawing operation. The tubes may have projections and grooves formed on them, and for corner tubes the connecting members may be provided on three or four sides.
Patent GB-404223-A (GB)
Title: Improvements in or relating to the obtaining of a horizontal divergence of luminous rays emitted by light-projectors
IPC: H01K1/26
Filed: 1933-07-14
Abstract: 404,223. Vehicle &c. lamps. SOC. POUR LA FABRICATION DES PROJECTEURS ELECTRIQUES MARCHAL, 14, Rue Mehul, Pantin, Seine, France. July 14, 1933, No. 19989. Convention date, July 18, 1932. [Class 39 (ii) and 75 (iv).] A vehicle or like lamp is provided between the source of light and the reflector with a screen which is permeable to light and is corrugated in such a manner that the rays of light finally reflected by the reflector diverge horizontally. The screen may be separate from or form part of an electric lamp bulb. The Specification contains an explanation of the curvatureof the corrugations and gives photographic method of obtaining them. The corrugations 7 (shown in elevation in Fig. 3 and in plan in Fig. 4) may extend over the upper and lower zones 9, 10 of the bulb, or they may extend over the upper zone only and the lower zone left smooth or otherwise corrugated. The front 6a of the bulb may be left smooth, provided with annular corrugations, or provided with a recuperating reflecting surface.
Patent GB-220454-A (GB)
Title: Improvements relating to rotary fans
IPC: F04D29/62
Filed: 1923-08-04
Abstract: 220,454. Purden, W. Aug. 4, 1923. Casings.-A fan casing k is supported by two pedestals a, h shaped at their upper ends to form circular flanges to correspond with the flanges on the fan casing. The flanges are provided with segmental slots j through which pass bolts l to secure the casing k in any adjusted position. One pedestal h carries an inlet eye i and the other a carries a bearing b for the fan. The pedestals may be fitted to either side of the fan casings The flanges are packed by asbestos rings. Specifications 10832/90, [Class 102, Pumps &c.] ; 1326/11 and 23014/11 are referred to.
Patent GB-1047932-A (GB)
Title: Improvements in methods of manufacturing mixed metallic oxides and solid solutions of metallic oxides and of mixed metallic oxides
IPC: C04B35/01
Filed: 1963-05-21
Abstract: "Mixed metal oxides" and solid solutions of simple and mixed oxides are prepared by pyrolysis, at 200-550 DEG  C. in an atm. of air, H2, N2 or Ar, of the following soluble oxalate complexes: <FORM:1047932/C1/1> or Mg[Cr(H2O)2(C2O4)2]2nH2O where X is H or NH4; J is Mg, Be, or Mn; G is Li or Na; M, M1 . . . are trivalent Al, Ga, In, Cr, V, Fe, Co, or Mn; x + y + . . . equals 1; and n is 1-20.  At least two of the above complexes may be co-crystallized before pyrolysis.  The product may subsequently be heated to a higher temperature, e.g. 550-1200 DEG  C., in a non-reducing atmosphere, e.g. N2 or Ar. Exs. 1-9 describe the preparation of "mixed oxides": (1) NaAlO2 or LiAlO2; (2) NaCrO2 or LiCrO2; (3) NaVO2 or LiVO2; (4) MgCr2O4; (5) MgV2O4; (6) MgFe2O4; (7) CoAl2O4; (8) LiFe5O8; (9) CoAlCrO4.  Examples 10-16 describe the preparation of solid solutions: (10) Cr2O3-Al2O3; (11 Cr2O3-V2O3; (12) Cr2O3-V2O3-Al2O3; (13) LiAlO2-LiCrO2; (14) MgAl2O4-MgCr2O4; (15) Co3O4-CoCr2O4; (16) Mg2VO4-MGV2O4.ALSO:The following oxalate complexes are described: <FORM:1047932/C2/1> where X is H or NH4, J is Mg, Be or Mn, G is Li or Na, M, M1 ... are trivalent Al, Ga, In, Cr, V, Fe, Co or Mn, x + y + ... equals 1, and n is 1-20.  Co-crystallization of at least two of the complexes is also described.  Examples describe the preparation of complexes containing Na, Li, Mg, Al, Cr, V, Fe and Co.
Patent GB-203850-A (GB)
Title: Improvements in or relating to motor road vehicles
IPC: B62D7/14
Filed: 1922-07-24
Abstract: 203,850. Williams, E. H. July 24,1922. Deflectable axle - ends; brakes, arrangement and disposition of; controlling- apparatus, arrangements of transmission gear in conjunction with.-In a vehicle having four or six wheels the front pair of wheels is mounted on half-axles d which are pivoted at d<1> and are directly engaged for steering by a plate b rotated by worm gearing. Brakes are provided on all the wheels. The plate b is pivoted at c and engages the half-axles through pin-and-slot connections e. The steering worm g rotates a worm-wheel g' carrying a spur wheel which gears with toothed sectors on the plate b and the similar plate operating the intermediate wheels a of a six-wheeled vehicle. Brake-drums h are provided on the wheels, and the brakes are operated by an arm m carrying a bar k connected to the brakes through rods and levers J pivoted on the steering pivots d<1>. The arm m is fixed on a rocking shaft n connected to the rear wheel brakes, so that all the brakes are applied simultaneously. Specification 15706/13 is referred to.
Patent GB-879237-A (GB)
Title: Improvements in or relating to cyclopentanophenanthrene derivatives and process for the manufacture thereof
IPC: C07J1/00
Filed: 1957-12-16
Abstract: The invention comprises compounds of the formulae:-<FORM:0879237/IV (b)/1> (wherein R is hydrogen or acyl, X is a double bond between C5 and C6 or a saturated linkage between C5 and C6 of the "allo" type, R1 is lower alkyl containing less than seven carbon atoms) together with a process for preparing the unesterified compounds by reducing the corresponding 3-ketones with sodium borohydride.  Examples detail the preparation of 4,4-dimethyl-19-nor-D 5-androstene-3b ,17b -diol, its diacetate, dipropionate, dibenzoate and dicyclopentylpropionate, 4,4,17a - trimethyl-19-nor D 5-androstene-3b ,17b -diol, its 3-acetate, propionate, benzoate and cyclopentylpropionate, and the corresponding androstane compounds (prepared by saturation of the C5-C6 bond and the foregoing 3b ,17b -diols).
Patent GB-502851-A (GB)
Title: Improvements in stacking and unstacking devices
IPC: B65G17/32
Filed: 1938-07-09
Abstract: 502,851. Endless - chain elevators. HERBORT, A. July 9, 1938, Nos. 20349 and 20350. Convention dates, March 29 and April 8. [Class 78 (i)] In a stacking device comprising an endless chain or band elevator 4 provided with forklike platforms 5, boxes, bales, &c. are fed to the platforms by a shoot or a roller track such as 6 which is adjustably pivoted on the elevator frame at 7, and are discharged on a shoot or roller track 12 pivoted on a member 10 which can be adjusted vertically on rollers 10a in a channel 2 by a cable 17a attached to a winding drum 17. Openings are formed in one side of each roller track to permit the passage of the platforms. These fork-like platforms may be formed trough-like. Alternatively, the platforms may each comprise two semicircular parts 25, Fig. 5, secured to parallel chains 26, both sides of the feeding and discharge shoots being cut away in this arrangement to permit the passage of the platforms.