baber/WOPTO huggingface dataset:
Patent GB-693193-A (GB)
Title: Attenuators for high frequency electric transmission lines
IPC: H01P3/10
Filed: 1951-02-16
Abstract: 693,193. Electric high-frequency attenuators. STANDARD TELEPHONES & CABLES, Ltd. Feb. 16, 1951 [May 25, 1950], No. 3817/51. Class 40 (viii). An attenuator for use with surface wave lines consists of an inner conductor 2 coaxially placed within a dielectric tube 3, the conductor 2 having a reduced section 6 which causes attenuation and a conducting sleeve 9 slides over conductor 2 and section 6 under the control of means external to tube 3, in order to control the attenuation. In the construction shown, sleeve 9 is moved, against the action of a spring 12, by the attraction of solenoid 13 for an iron armature 11. In an alternative arrangement sleeve 9 is carried by an insulating disc joined to tube 3, the latter being slidably mounted on conductor 2. In a further arrangement sleeve 9 is moved by a rod passing along a hollow part of conductor 2. The space within tube 3 is filled with a liquid dielectric.
Patent GB-619956-A (GB)
Title: Improvement in high voltage transformers
IPC: H01F30/08
Filed: 1946-02-07
Abstract: 619,956. Transformers. MALLORY & CO., Inc., P. R. Feb. 7, 1946, No. 3844. Convention date, Feb. 7, 1945. [Class 38 (ii)] [Also in Groups XXVII and XXXVI] In order to render the distribution of dielectric stress more uniform and obviate the possibility of corona discharge, the secondary winding of a transformer, for use more particularly as an ignition transformer combined with a sparking plug, is provided on its surface with a layer of electrically conducting material having a high specific resistance, the layer being preferably in the form of a continuous coating with its ends connected to the ends of the secondary winding. Thetransformer may be combined with a sparking plug by winding the secondary coil 20 around a cup or tube 21 of heat-resisting glass, such as that known under the Registered Trade Mark, " Pyrex," which is adapted to receive the primary winding 22 connected to the conductors of an insulated lead 19 and held in position by a screw cap 29 on the plug housing 11. The conducting material of high specific resistance is applied as a thin layer 38 upon the insulation ,of the secondary winding, a suitable material comprising colloidal graphite in a rapidly drying vehicle, which is applied by spraying, dipping, or brushing, (see Group XXXVI). The high tension end of the secondary winding is anchored, by soldering to a layer 26 of material such as a silver compound adhered to the closed lower end of the glass cup or tube 21 by firing, and the low tension end of the winding is preferably anchored to the rim of the cup in a similar manner at 25, the coating of resistance material being of an extent sufficient to cover these terminal connections. Due to the resistance coating, the individual turns of the secondary winding are capacitively coupled to uniformly distributed points on the resistance, so that the production of very high stresses in. certain regions is avoided. A ceramic sleeve 12 which separates the secondary winding from the metal housing 11 contains an oily compound 31. Specification 619,947 is referred to.
Patent GB-633475-A (GB)
Title: Improvements in or relating to power transmission systems for motor vehicles
IPC: F16D33/04
Filed: 1945-02-16
Abstract: 633,475. Hydraulic couplings. BELLAMY, H. S. Feb. 16, 1945, No. 3892. [Classes 69 (ii) and 135] In a vehicle transmission comprising driving and driven bladed members 3, 8 in an oilfilled casing, pitch of the blades of member 8 is varied automatically in accordance with engine speed by axial movement of a sleeve 11 surrounding the driven shaft. The sleeve 11 is rotated in one direction or the other within a fixed nut 14, to provide the axial movement, by impellers 18 or 19 supplied with pressure oil selectively by an engine-driven pump 32 through a control valve 21 positioned by the oil pressure acting in a piston 27. The control valve may be hand set.
Patent GB-1032773-A (GB)
Title: Improvements in and relating to inflatable bladders
IPC: A01K75/04
Filed: 1963-01-30
Abstract: A balloon has a filling connection 2, leading to a non-return valve 4, stated to be known, and a member 7 inside a projection of the filling connection from which a load can be suspended.  The member 7 consists of a pin passing through the walls of the projection and having a flattened central portion 8 drilled to receive a ring 10 which carries the load.
Patent GB-1379861-A (GB)
Title: Copolymer pastes
IPC: A61B5/0408
Filed: 1973-01-25
Abstract: 1379861 Copolymer pastes NATIONAL PATENT DEVELOPMENT CORP 25 Jan 1973 [2 Feb 1972] 3933/73 Heading C3P [Also in Division A5] Polymer-containing pastes comprise (1) 0À2- 6À5 wt. per cent of an hydrophilic copolymer of a monoester of formula and a diester of formula in which R is H or CH 3 , n is 2 or 3 and x is 0, 1 or 2, the proportion of diester being 0À01-50 wt. per cent based on total copolymer, (2) 4À9- 10À8 wt. per cent of a particulate active inorganic filler, and (3) the balance of an organic solvent for the copolymer, the percentages of copolymer and filler being based on the total weight of the paste. The paste may also contain a local anaesthetic, a biologically active substance and/or a flavouring, fragrance or colouring agent. Suitable fillers are silica, activated carbon, alumina and diatomaceous earth, and a wide variety of solvents is specified. Glycerol or pentaerythritol may also be added. The pastes have a variety of uses. In examples, all using copolymers of hydroxyethyl methacrylate with ethylene glycol dimethacrylate: (1) a paste formed from copolymer, silica and a mixture of 1,2- and 1,3- glycerol diacetates is used as a contact paste for echo-encephalography; (2 and 6) the same paste additionally contains glycerol; (3 and 4) the paste of (1) additionally containing an anaesthetic and a flavour (Example 3 only) is used in dental surgery; (5) a paste formed from the copolymer, ethylene glycol monomethyl ether, glycerol and silica is used as a watersoluble grease for ground glass joints in chemical apparatus; and (7) a paste formed from the copolymer, propylene glycol and silica is used as a cover for dental fillings when setting.
Patent GB-846973-A (GB)
Title: Improvements in hand chain saw tools
Inventor: SANDERS ALBERT VICTOR
IPC: B27B17/08
Filed: 1958-02-07
Abstract: 846,973. Chain saws. HELI-STRAND TOOLS Ltd., and TARPEN ENGINEERING CO. Ltd. Nov. 27, 1958 [Feb. 7, 1958], No. 4090/58. Class 145. A chain saw has a drive casing 11 with a slotted clamp 13 for receiving the outer cover of a flexible drive shaft of which the inner rotatable core engages keys 25 on an input shaft 21 and a flywheel 27 is provided to smooth out irregularities in the pull of the saw chain. If the flexible shaft, when connected to a power source such as a tractor, runs at a high speed, the flywheel is mounted on the input shaft and the bevel gearing 26, 29 between the input shaft and the sprocket shaft 30 gives a speed reduction but, if the flexible shaft runs at a slow speed, a second shaft between the input shaft and sprocket is driven from the input shaft through speed increasing means such as spur gearing and the flywheel is then mounted on the second shaft ; pairs of spur gears may be provided to give different ratios. Toothed quadrants 35 on each side of the chain bar 34 bear against the object to be sawed.
Patent GB-1113155-A (GB)
Title: Anti-bronzing agents for photographic printing material
Inventor: WILLEMS JOZEF FRANS
IPC: C07D249/16
Filed: 1966-01-31
Abstract: Compounds of the formula <FORM:1113155/C2/1> wherein R1-R4 are H, alkyl, substituted alkyl, aryl or heterocyclyl at least one being aryl or heterocyclyl are obtained by criss-cross addition of thiocyanic acid with an appropriate azine, e.g. reaction of benzalazine with thiocyanic acid in acetic acid to give 3:7-diphenyl-s-triazolidino-[1: 2-a]-s-triazolidine-1,5-dithione. Reference is also made to the corresponding 3:7-di-a -naphthyl-, 3:7-di-a -furyl-, 3:7-di-(o-chlorophenyl), 3,3,7, 7-tetramethyl- and 3:7-dimethyl-3:7-diphenyl-compounds. The compounds are used as antibronzing agents in photography (see Divisions G2 and G3).
Patent GB-1122911-A (GB)
Title: Improvements in or relating to telecommunication exchanges
Inventor: KNIGHT RONALD GEORGE
IPC: H04Q3/00
Filed: 1966-01-31
Abstract: 1,122,911. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 27 Jan., 1967 [31 Jan., 1966], No. 4139/66. Heading H4K. An exchange has a number of stages of step-by-step switches and also has register controlled cross-bar switches, some at least of the connections over the exchange involving step-by-step and cross-bar switches. The arrangements relate to the expansion and part replacement of step-by-step systems by the use of cross-bar switches. The cross-bar system employed is of the type known under the Trade Mark "Pentaconta." In the first arrangement, Fig. 1 (not shown), outlets of a single preselector serving all local lines have access to a first group selector of a non-director step-by-step switching train and also have access to relay sets associated with the inlets of a single or two-stage cross-bar switch. The relay sets give access to a register by way of a cross-bar connector. The register has the service of a translator which connects with the cross-bar switch markers over a common bus. The outlets of the cross-bar switch are connected to other exchange relay sets or, over a cross connection frame, to the second, third or final selector of the step-by-step train. The cross-bar switches may be accessed over some stages of the step-by-step system, in which case a fast acting register connector is required. In the second arrangement shown in Fig. 2, a group of subscribers is served by a cross-bar switch CBSA which gives access to the first group selector 1GS of the step-by-step train for calls originated in the group. Calls terminated in the group enter the cross-bar section by way of the second group selector and circuits TJ; a fast acting connector RFS providing register facilities within an interdigital pause. The third arrangement shown in Fig. 3 has a cross-bar unit LU serving a subscriber group and also has a group unit GU, also cross-bar, providing access to outgoing junction circuits ADCO and to the final selector of the non- director step-by-step system; such access being provided both for the line unit LU and for incoming junction circuits IJ. Calls originated over LU are served by a register REG, calls terminated on LU from incoming junction circuits IJ from other exchanges and from the step-by-step system are served by register REGS with a fast connector QRF capable of associating a register with a call during an interdigital pause. In all arrangements the step-by-step system may be a director system. The cross-bar system may provide entraide trunks. Reference has been directed by the Comptroller to Specification 1,028,170.
Patent GB-345039-A (GB)
IPC: B21C25/04
Filed: 1930-02-07
Abstract: 345,039. Squirting. HYDRAULIK GES., 72, M³lheimerstrasse, Duisburg, and SCHLENSTEDT, O., 64, Hundsbuschstrasse, Speldorf, M³lheim, both in Germany. Feb. 7, 1930, No. 4248. Convention date, Jan. 29. [Class 83 (iv).] In hydraulically-operated extrusion presses the piston and ram carrier are so arranged that movement of the piston due to wear does not affect the disposition of the ram. One method consists in connecting a piston 1 and ram carrier 2 by screws 7 passing through elongated holes in the carrier so that the two are capable of relative movement perpendicular to their axes, the ram carrier being held at a fixed height by slides 3, Fig. 3, or 4, Fig. 4. A modification consists in rigidly connecting the piston and ram carrier and making the weight of moving parts to the left of line xx greater or equal to those to the right, the slide then supports both ram carrier and piston.
Patent GB-557813-A (GB)
Title: Coating compositions
IPC: C09D101/18
Filed: 1942-04-01
Abstract: 557,813. Filtering media. DU PONT DE NEMOURS & CO., E. I., DORAN, C. A., and DEBOW, C. R. April 1, 1942, No. 4323. [Class 46] [Also in Group IV] Grit and gel free pigmented cellulose nitrate compositions are obtained by suspending therein a diatomaccous substance having an inherent permeability coefficient, in the range of 3.0 x 10-<SP>5</SP> to 4.5 x 10-<SP>5</SP> c.g. s units and then filtering under pressure. Diatomaceous earth of the requisite grade of permeability may be obtained from the crude material by air separation, the permeability being tested by using chemically pure acetone as the test liquid. A small amount of the material is dispersed in the test liquid and the uniform suspension is pumped through a felt or fine wire gauge until a thin layer of the filter aid is formed thereon. The initial filtered liquid is returned to the tank and the filtration proper is started at constant pressure and temperature. The permeability is calculated from the formula dV/dT = K.A.P./L.Y. where V is the volume of liquid filtered in T seconds, P is the pressure difference across the layer of area A and thickness L, Y is the viscosity in poises of the liquid, and K is the permeability coefficient. For filtering the pigmented cellulose nitrate solution the amount of filter aid required may be 0.5 per cent or less of the weight of the solution. In examples, cellulose nitrate black and maroon enamels are filtered in shriver plate presses after dispersing in the enamels a small proportion of diatomaceous earth of the selected grade of permeability.
Patent GB-912313-A (GB)
Title: Method for reproducing information recorded in a digital form on a magnetic tape anddevice for carrying out this method
Inventor: BERKEL PETRUS LUDOVICUS MARIA
IPC: G11B20/16
Filed: 1961-02-06
Abstract: 912,313. Electric digital-data-storage apparatus. DE STAAT DER NEDERLANDEN, TEN DEZE VERTEGENWOORDIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. Feb. 6, 1961 [Feb. 19, 1960], No. 4367/61. Class 106(1).  In an arrangement for reproducing data recorded in parallel-serial form on a magnetic tape, and in which due to skewness of the tape the data bits for each character may not be simultaneously read, a synchronizing pulse for each character is derived from the trailing edge of the first data bit of that character which is read. Due to the lack of straightness in the tape at points removed from tape guides I, II, the signals for the characters read at transducing head positions a, b are not synchronous for each character. As shown in Fig. 4, signals derived from heads W 1  . . . W n  are passed to a first " or " gate P via individual differentiating circuits comprising capacitors C 1 . . . C n , and to a second " or " gate P<SP>1</SP> via individual differentiating circuits comprising capacitors C<SP>1</SP>1 . . . C<SP>1</SP> n . A trigger TR is connected so that when a character is being read, the trigger is changed over by a pulse transmitted via the gate P and corresponding to the leading edge of the first character to be read and is reset by a pulse transmitted by the gate P<SP>1</SP> and corresponding to the trailing edge of the first character bit. When the trigger is thus reset, it produces an output which is applied as a synchronizing pulse to a code converter CO to which are applied the outputs of all the transducer heads W 1  . . . W n  via delays VT 1  ... VT n .
Patent GB-906782-A (GB)
Title: Improvements in and relating to swathers
IPC: A01D57/20
Filed: 1961-02-07
Abstract: 906,782. Reaping machines. MASSEYFERGUSON Ltd. Feb. 7, 1961 [Feb. 8, 1960], No. 4488/61. Class 6(3). A reaping machine includes a reel 34 to deflect crop on to a reciprocating cutter 10 and a transversely moving conveyer 11 and is characterized by a transversely extending frame member 16 which encloses a drive shaft and gearing through which the reel, cutter and conveyer are driven. A shaft coupled to the power take off of a tractor and enclosed in a telescopic shield 77 drives the main shaft through gearing disposed in a housing 60 from which the reel is driven via shaft 81 and pulley belt 87. Gearing enclosed in a housing 52, drives a pulley 96 from which the cutter is reciprocated by a rod 104 eccentrically mounted on pulley 98 and operating pivoted bar 29, and also drives the conveyer. A pull rod 39 co-operating with a link 40 and a cam 41 on the main frame structure adjusts the reel frame and adjustment of the cutting height is effected by rocking the main frame relative to the frame 20 by means of a hydraulic actuator 42, fluid for which may be supplied from the tractor through conduit 42<SP>1</SP> or may be supplied from a pump fixed to the housing 60 and operated through the gearing therein.
Patent GB-234540-A (GB)
Title: Improvements in or relating to gramophones and like sound-reproducing machines
IPC: G11B25/04
Filed: 1924-02-21
Abstract: 234,540. Cullum, H. J. Feb. 21, 1924. Cases; tone-arm joints; horns, arranging.-In a portable gramophone or the like, the turntable - can be slid or otherwise moved in an horizontal plane, together with the motor, so that, while the machine is available for pLaying records when the parts are in the normal position, when the turntable is displaced larger records can be played. Fig. 2 shows a construction in which the motorboard 9 is mounted on slides r on the casing of the machine, so that it can be moved forward, together with the motor a and turntable b, to the position shown, when a large record is to be played. Alternatively, with a different arrangement of the slides r, the motor-board may be adapted to be moved laterally to the position shown in dotted lines q<1>. Instead of being capable of a sliding movement the motor-board may be pivoted at one corner, about which it can swing outwardly together with the turntable. In a further modification, the motor and turntable are movable lineally in guide-slots in the motorboard. The tone-arm f, in the machine shown in Fig. 2, is mounted on a platform g hinged at g<1>, the platform being depressible about its hinged end so that the tone-arm, when folded, can be accommodated, together with the sound-box, in the sound-amplifying chamber h. The tone-arm has a screw joint j, which allows the section f<1> to be turned up about an horizontal axis. The sound-box k is connected to a flange f<2> on the end of the tone-arm by screws m passing through arcuate slots in the flange, which allow of angular adjustment. A small horn p is carried by a coverplate n on the diaphragm side of the sound-box. Fig. 5 shows a construction in which the lid d is adapted to contain records, and is itself provided with a cover d<10> of aluminium &c. This cover is attached by yieldable spring hinges y, which allow of expansion of the storage space. The records rest on a partition u having a hole through which the end of the turntable spindle can pass. Straps 6, adapted to engage with clasps 9 and 10 on the body c and lid d respectively, serve to secure the lid or to retain it in a raised position.
Patent GB-359839-A (GB)
Title: Improvements in curtain rod and like brackets
IPC: A47H1/102
Filed: 1931-02-13
Abstract: 359,839. Brackets. BAILY, J. W., 5, Warrington Road, Richmond, Surrey. Feb. 13, 1931, No. 4530. [Class 52 (v).] A curtain rod bracket consists of a baseplate a, the ends a<1> of which are offset to space the plate from the wall, and a spring clip b the lower end of which is attached to the baseplate by a rivet f<1>, rotation of the clip being prevented by the lower fixing screw which passes through the clip and the lower offset end a<1> of the baseplate which has a bent-up lug c<1> to prevent endwise movement of the rod.
Patent GB-497896-A (GB)
Title: Improvements in and relating to the tempering of hollow glass articles
IPC: C03B27/02
Filed: 1938-02-14
Abstract: 497,896. Tempering glass. PILKING- TON BROS., Ltd. Feb. 14, 1938, No. 4562. Convention date, June 24, 1937. [Class 56] A device for chilling bottles or like articles by immersion in a liquid, during the operation of tempering, comprises a support 10 on which a bottle 17 rests, a pipe 20 adapted to enter the bottle, a frame to which the support and the pipe are attached, and means adapted to lower the support and the pipe simultaneously into the chilling-liquid. The pipe 20 may be used for withdrawing air and liquid by suction from the interior of the bottle, or for introducing liquid under pressure into the bottle, the purpose in both cases being to cause a flow of liquid over the inner surface of the bottle during its immersion in the chilling-bath. In the construction shown, a supplementary tank 15 is connected to a vacuum line 31 and receives the air and liquid which is sucked through the pipe 20. The liquid is afterwards returned to the main tank 11 through a pipe 27. In another construction, the tank 15 contains liquid which is forced by compressed air through the pipe 20 into the interior of the bottle. The bottle may be placed in the support either with its neck upwards or downwards, the pipe 20 being suitably arranged.
Patent GB-461048-A (GB)
Title: A new or improved clip
IPC: F16L33/03
Filed: 1936-02-14
Abstract: 461,048. Band clips. HARLEX, Ltd., and CAVE, W. S. Feb. 14, 1936, No. 4580. [Class 44] A band clip for securing flexible hose to pipes consists of a ring of thin strip metal reduced to half width at 2, 3 where the ends overlap. Finger pieces are provided by the extreme ends 4, 5, which are left the full width of the strip.
Patent GB-866848-A (GB)
Title: Improvements in or relating to articles of clothing having sleeves
Inventor: POLLOCK MICHAEL JAMES
IPC: A41D27/10
Filed: 1959-02-10
Abstract: 866,848. Garment sleeves. STEVENS, E. J. Jan. 22, 1960 [Feb. 10, 1959], No. 4582/59. Class 141 The sleeves 1 of a waterproof jacket are each provided with an oversleeve 5 having a longitudinal division 6 so that the cuff of a gauntlet may be positioned between the sleeve and oversleeve, the oversleeve subsequently being closed by a sliding clasp fastener 7 and press-stud 11. The sleeve and oversleeve may be made of polyvinyl chloride and bonded together at 8. Alternatively the jacket may consist of woven material, the oversleeve being stitched to it and the whole garment subsequently waterproofed.