baber/WOPTO huggingface dataset:
Patent GB-505617-A (GB)
Title: Improvements in or relating to electric furnaces
IPC: F27B3/12
Filed: 1937-11-09
Abstract: 505,617. Furnace casings. MAGNESIUM METAL CORPORATION, Ltd. (American Magnesium Metals Corporation) Nov. 9, 1937, No. 30710. [Class 51 (ii)] In a furnace construction comprising an inner heating- chamber 1, an outer casing 9 and intervening struts 5 as described in Specification 486,559, resilient members are provided in connection with the struts, and may consist of helical springs 7 acting against adjustable abutments 11, as shown, or may be formed by elastic diaphragms on the shell, or may be in the struts themselves.
Patent GB-1020534-A (GB)
Title: Improvements in the production of a wear-resistant surface on ferrous metal parts
Inventor: GREGORY JAMES CLIFFORD
IPC: C23C8/42
Filed: 1963-08-02
Abstract: A process for the production on ferrous metal parts of a sulphurized nitrided surface layer comprising heating the parts to above 500  DEG C., preferably 560-580  DEG C. in a fused salt bath containing an alkali metal cyanide, cyanate, chloride and carbonate and active sulphur (i.e. sulphur which shows up in analysis for sulphide) which may be added in the form of a sulphite, sulphide, thiosulphate or thiocyanate of an alkali metal.  The proportion by weight of cyanide is 0.5-30% (calculated as NaCN), of cyanate 10-25% (calculated as NaCNO), of chloride 20-50% (calculated as KCl) and of sulphur 0.05-0.4% (calculated as S).  Case hardened steel is treated for 5-180 minutes and the bath covered with a floating layer of graphite and is then quenched or cooled in air or town gas.
Patent GB-663810-A (GB)
Title: A process for the manufacture of phenyldichlorosilane
IPC: C07F7/12
Filed: 1949-11-30
Abstract: Phenyldichlorosilane is prepared by heating from 150 DEG  to 250 DEG C. diphenylchlorosilane in the presence of less than 50 per cent by weight of aluminium chloride based on the total weight of chlorosilanes employed and at a pressure sufficiently low that the phenyldichlorosilane distills from the reaction mixture.  The preferred proportion of aluminium catalyst is from 0.001 to 10 per cent by weight based upon the weight of silane. Diphenyldichlorosilane may also be present in the reaction mixture, e.g. in an equimolecular proportion with the phenyldichlorosilane. The reaction temperature may be from 150 DEG  to 210 DEG  C. and the reaction pressure may be less than 60 mms. mercury.  A number of examples are given.  Some triphenylsilane and phenylmonochlorosilane are also formed.
Patent GB-683048-A (GB)
Title: Improvements in or relating to pressure equalizing devices
IPC: G03B42/04
Filed: 1950-12-19
Abstract: 683,048. X-ray apparatus. KODAK,. Ltd., and STRUCK, G. R. Dec. 19, 1950 [Dec. 20, 1949], No. 30903/50. Class 98 (i). A pressure-equalizing device in the form of an inflated envelope adapted to press a fluorescent intensifying screen against an X-ray film in an X-ray cassette, comprises a pair of overlying sheets of air-impermeable material having a uniform transmission to X-rays and sealed at their edges to provide an air-tight structure, and a strip of flexible air-permeable material, such as thin tissue-paper, positioned in the envelope to maintain the air-impermeable sheets out of contact except at the edges. The envelope may be made by arranging a sheet of flexible air-permeable material between a pair of sheets of flexible air-impermeable material having a uniform transmission to X-rays, sealing the edges of the pair of sheets so as to leave a small opening, introducing a pre-determined volume of air between the sealed sheets through the opening, and sealing the opening to enclose the predetermined volume of air between the sealed sheets. The material known as " Saran " (Registered Trade Mark) may be used for the air-impermeable material and is shrunk before use. Two sheets 20, 21 of approximately the correct size are prepared and laid one over the other with a smaller sheet 22 of air-permeable material, such as tissue paper, between them. Alternatively a single sheet of air-impermeable material may be folded in half. The airpermeable sheet may be held in place as by adhesive tape. The edges of the air-impermeable sheets are sealed, leaving a small hole at one corner through which a certain volume of air is introduced. The volume of the air is such that the thickness of the resultant layer of air in the envelope lies between 0.008 and 0.075 inch, and is preferably 0.025 inch. The hole in the corner is then sealed. When the envelope is used with intensifying screens with rounded corners, the area of each corner of the envelope not covered by the screen is sealed. In an X-ray cassette, a film 13 has an intensifying screen 14 held in even contact with each side by means of an air-filled envelope 16, the envelopes being held in position by the sides 11, 12 of the cassette.
Patent GB-301635-A (GB)
Title: Improvements in or relating to eye shields or guards for use in connection with spectacles, eyeglasses, goggles or the like
IPC: G02C7/16
Filed: 1927-11-17
Abstract: 301,635. Cloran, H. Nov. 17, 1927. Eyeshields or guards for spectacles, &c. of the kind having portions extending forwardly from the lens rim and rearwardly to the forehead of the wearer, comprise a crescent-shaped plate b detachably secured to the lens rim by means of a metallic band d provided with clamps f to fit on the rim. The bands d may be fitted to both sides of the shield b, and the clamps f arranged so as to butt against stops or shoulders on the guard.
Patent GB-1396004-A (GB)
Title: Air cushion vehicles
IPC: B60V3/04
Filed: 1972-07-03
Abstract: 1396004 Air cushion vehicles; railway systems BLISS PENDAIR Ltd 3 July 1973 [3 July 1972] 30954/72 Headings B7K and B7L An air cushion vehicle particularly but not exclusively for use in a transportation system as disclosed in Specification 1,334,874 comprises a body 1 suspended from a lift platform 2 which is housed within an inverted channel-section track 3 which forms a chamber 4 divided vertically by members 6 into two compartments, the upper one being maintained at subatmospheric pressure and the lower one being open to atmosphere, the members 6 being so constructed and mounted as to be urged into close proximity with the adjoining inner vertical walls of the track. To enable the platform 2 to be accommodated to curves in the track it is waisted along its length as shown in Fig. 2 and there is a plurality of lengthwise adjoining flexibly-connected members 6 of varying widths whereby they may retract or extend to conform to said curves. A bogie 5 is provided at each end. In one construction, Fig. 3, the platform 2 has a central spine which extends laterally on each side to a duct 8 connected to suction pumps 9 and each member 6 is shaped in crosssection as shown in Fig. 3 and supported by rollers 13 and sliding bearings 14 thereby forming a separate chamber 19. Ports 10 and 11 in duet 8 connect respectively with chambers 19 and 4 so that the members 6 are stabilized transversely of the track at positions which establish an optimum working clearance 15 between the edge of each member and track wall 3. In other arrangements air pressure or springs urge members 6 into a sealing condition and various forms of flexible seals between the movable members 6 and fixed structure are described. The apparatus may be adapted for use in a superatmospheric pressure cushion device.
Patent GB-1196138-A (GB)
Title: Means for Machine-Knitting Lace, and Lace Produced Thereby
IPC: D04C1/00
Filed: 1967-07-06
Abstract: 1,196,138. Knitting-machines. SOC. DOGNIN S.A. 6 July, 1967 [13 July, 1966], No. 31084/67. Heading D1C. In a warp machine for knitting lace the warps Fa to be knit into chains are controlled by guides 4a having a large aperture 7a to reduce wear on the yarns. Embroidery and gimp threads fa are guided by bars 1a, and pushed towards the needles by the leading edge 5a of the warp guides. The guides are recessed at 9a to facilitate lapping. The loop size of the lace may be varied selectively by means of bars which deflect the embroidery and gimp threads, to produce different sizes of openings in a ground structure.
Patent GB-1140472-A (GB)
Title: Articulated structure especially for jet propulsion nozzle
Inventor: NAUD HENRY
IPC: F02K1/12
Filed: 1967-07-06
Abstract: 1,140,472. Linkwork. SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. 6 July, 1967 [7 July, 1966], No. 31095/67. Heading F2K. [Also in Division F1] In a jet propulsion nozzle of variable crosssectional area, each flap 10 is mounted on a pivot 16 on a member 13 which is mounted on a fixed pivot 12 and is controlled by a rod member 11 attached by means of a pivot 15 to the member 13. In the condition of smallest crosssectional area, the flap 10 bears against a portion 18 of member 13. When rod member 11 is pulled towards the left, it causes anti-clockwise rotation of member 13 and flap 10 together until flap 10 strikes a fixed abutment 17, Fig. 3, whereupon further anti-clockwise rotation of member 13 causes clockwise rotation of flap 10 about fixed abutment 17 until the position shown in Fig. 4 is reached. The nozzle comprises slave flaps alternating with controlled flaps arranged in a circle.
Patent GB-306436-A (GB)
Title: Improvements in or relating to circuit arrangements for thermionic devices
IPC: H04B15/00
Filed: 1927-11-19
Abstract: 306,436. Flannagan, C. Nov. 19, 1927. Thermionic amplifiers.-In a system for energizing thermionic valves from alternating-current mains, the filaments 10, 11 of a pair of amplifying valves are fed in parallel with alternating current from a secondary winding 36, an associated winding 24 energized from the same primary 25 feeding the filaments 26 of a pair of rectifying valves which supply rectified current to the plates of the first valves. The positive rectified voltage is taken from one end of the secondary winding 24 through a smoothing circuit comprising a choke 21 shunted by condensers 22, 23 to a choke 20. It then passes through an ammeter to a central tapping on the output transformer 19 to the plates of the amplifying valves, the return path passing from the filaments 10, 11 to one end of the secondary winding 36. Any variations in the plate supply arising from the connection of choke 21 to the outer end of the secondary winding 24 is counterbalanced by the connection of the return lead to the outer end of the secondary winding 36. The voltage to be rectified for the plates is derived from a separate supply transformer 33, the midpoint of the secondary winding 32 of which is connected to the outer end of winding 36. A tapping from the midpoint of winding 36 is earthed, and also includes a biassing battery 39 and resistance 38 both shurted by a condenser 40. The primary and secondary windings of the input transformer 4 are shunted by resistance 3, 7.
Patent GB-465494-A (GB)
Title: Improvements in taps or valves
IPC: F16K1/52
Filed: 1935-11-12
Abstract: 465,494. Valves. YATES, H. J., HOWLETT & CO.. Ltd., M., and DOLPHIN, J. Nov. 12, 1935, No. 31286. [Class 135] [Also in Group XI] A valve device, particularly adapted for regulating the passage of gas to gas burners and of the kind having inlet and discharge ports controlled by separate valves each of which is independently adjustable has the two valves actuated by a common operating member having a lost motion connection with one valve whereby it can be adjusted to any position from closed to fully open and then the other valve can be adj asted to any position from closed to fully open without altering the setting of the first valve. In the form shown in Fig. 1 the actuating spindle 14 has a screwdriver slot 16 and a radial pin 17 adapted to co-operate with a depending lug 18 on the rotary cylindrical or tapered inlet valve 6. The actuating spindle is also formed with a boss 21 having radial arms 19 housed between a partition 20 and the valve 6, said boss carrying an eccentric pin 22 engaging a transverse slot in a flattened part 22 of the outlet valve 7. This valve, which comprises a cylindrical part with a pointed end 8, is adapted to co-operate with an aperture 2 in the nozzle 9 and is guided by the flattened part sliding in longitudinal grooves in the casing. In a modification of this form the actuating spindle is formed integrally with the rotary cylindrical valve and the crank pin is formed on a separate piece having a lost motion connection with the cylindrical valve. In the form shown in Fig. 11 the rotary valve has a projection 64 adapted to co-operate with a lug 65 on the valve 61 which is formed with a cam groove 63 engaging a fixed pin. In a modification of this form the actuating spindle is formed integrally with the member provided with the cam groove. In another form the actuating spindle is formed integrally with the outlet valve and has a radial pin engaging the inlet valve and a screw-threaded enlargement engaging a corresponding thread on the casing. In modifications of the form shown in Fig. 11 the rotary inlet valve seats in a manually operable plug cock whereby the supply may be interrupted without altering the adjustment of the inlet and discharge valve.
Patent GB-245271-A (GB)
Title: Improvements relating to the cut-marking and measuring motions in slasher or tape sizing machines
IPC: D06H1/00
Filed: 1924-12-31
Abstract: 245,271. Howard & Bullough, Ltd., and Irving, J. Dec. 31, 1924. Yarns, marking and measuring. - Relates to cut-marking and measuring devices for slasher sizing machines of the kind having a dial wheel b, Fig. 1, in alternate gear connection with spreading-rollers geared to a measuring-roller, and in which peg teeth i on wheels geared to a wheel e on the dial wheel are engaged periodically by a peg tooth h on the wheel e, to rock weighted levers k, l adapted to release a hooked disc r to allow a shaft o to be rotated through a half revolution, for operating the marking hammer. According to the invention, the shaft o is driven frictionally through clutch mechanism when the disc is freed by the vibratory levers, the friction drive being non-existant when the hooked disc is again locked. In the form shown in Fig. 1, the levers k, l have each a part for engaging a stop piece q on the disc r and are adapted, when rocked, to engage a lever v and, by cam action, to raise the end of a lever x clear of a ledge as shown in Fig. 2, the lever x is pivoted to a spring-controlled sleeve or bearing z loose on the shaft o. When the sleeve z is released, it is moved to the left and moves a clutch member 3, splined on the shaft, into engagement with a clutch member 4 on a constantly-driven pulley 5 loose on the shaft. When the shaft rotates, cam. surfaces 7 on the clutch member 3 and on the sleeve z co-operate to move the sleeve to the right so that the lever x again slips over the ledge, and a spring 6 adapted to hold the cam surfaces 7 in engagement assists in withdrawing' the clutch members 3, 4, the pulley then running freely on the shaft o. In a modification, the levers k, l are coupled by bell-crank lever devices in such a manner that when either lever is rocked by the engagement of the peg teeth h, i, a rod 18, Fig. 5, is moved to the left thereby raising a pair of arms 13 pivoted to parts 10, 11 loose on the shaft o and having teeth 14 on their adjacent ends. The parts 10, 11 are then separated, the part 10 moving to the left and, through a spring 16, moving a normally-loose pulley 8 having a clutch cone into engagement with a clutch member 9 fast on the shaft o. Where the rod 18 is moved to the right, the clutch is withdrawn and the pulley again runs freely on the shaft.
Patent GB-208702-A (GB)
Title: Improved apparatus and machine for sealing bottles, jars, boxes, and other receptacles, under vacuum by means of covers or capsules
IPC: B67B3/24
Filed: 1923-12-13
Abstract: 208,702. Talansier, J. Dec. 21, 1922, [Convention date]. Capsules and the like, applying; stoppering.- Relates to apparatus for sealing bottles, jars, boxes, &c. by capsules or covers which are slipped over the necks of the receptacles and tightened thereon under vacuum. The apparatus comprises a vacuum box consisting of a stationary part 1, a sliding part 2, and a conduit 19 to a valve box 20 containing a valve 21 controlling a passage to a suction pump &c. and a valve 22 controlling an opening to the atmosphere,. The top 4 of the vacuum box is provided with a cylindrical chamber 5, with an opening 7 in its bottom 6, and a block 12 with a mortise guide 11 for a transverse bar 10 secured to a rod 9 guided in a sleeve 8 on the top 4. A receptacle, such as a bottle 15, with a capsule 16 slipped loosely over its neck is inserted into the vacuum box through an opening provided with resilient packing 18 in the bottom 17 of the sliding part 2 which is moved upwards until the capsule is gripped between the block 12 and the bottle mouth, the valve 21 having meanwhile been opened to produce a vacuum in the box and the bottle. 15. The rod 9 is then moved downwards and the bar 10 acts through a metal ring 13 on a rubber washer 14 which is distorted and presses the flange of the capsule 16 against the bottle neck. The valve 21 is then closed, the valve 22 opened, and the bottle is withdrawn, the part 2 returning to its original position under the action of compression springs. The vacuum box may be mounted in a bracket on a column carried by a pedestal, a lower bracket being provided with a guide for a verticallyslidable rod on which is a plate for supporting the receptacle to be sealed. A pedal is provided for operating the parts, an arm keyed to the pedal axle acting on a cam surface connected to the vertically-slidable rod, and a lever, connected by a rod to the pedal, having parts for operating the rod 9 and the valves 21, 22.
Patent GB-942348-A (GB)
Title: Fumigants
Inventor: YOUNGSON CHARLES RICHARD
Filed: 1961-08-31
Abstract: A soil improvement composition comprises 0.3-9 parts of methyl bromide to 9 parts of propargyl bromide.  The composition may be mixed with solid or liquid carriers, emulsifying agents, or dispersing agents.ALSO:A fumigant composition for controlling soil-dwelling parasites comprises 0.3 to 9 parts of methyl bromide to 9 parts of propargyl bromide.  The composition may be admixed with solid or liquid carriers, emulsifying agents or dispersing agents to give gaseous, liquid, granular, aqueous dispersion, aqueous emulsion or dust compositions.  Specified liquid carriers are xylenes, naphthas, hydrocarbon mixtures derived from the distillation of petroleum and coal, acetone, carbon tetrachloride and ethylene dichloride. Specified surface-active agents are polyoxyalkylene derivatives of alcohols, phenols and organic acids, oil-soluble petroleum sulphonates and poloxyethylene derivatives of glycerols and glycols, dimeric alkylated aryl polyether alcohols and alkylaryl sulphonates.ALSO:Grain is fumigated by treatment with a composition comprising between 0.3 and 9 parts of methyl bromide and 9 parts of propargyl bromide.  The composition may be mixed with powdered solid or liquid carriers, including water, and emulsifying or dispersing agents may be added.
Patent GB-636085-A (GB)
Title: Improvements relating to high voltage supply units for supplying uni-directional voltages
IPC: H02M3/33
Filed: 1947-11-27
Abstract: 636,085. Converting; automatic voltage control systems. HIGHAM, E. H., KAY, A. G., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 27, 1947, No. 31426. [Classes 38 (ii) and 38 (iv)] Apparatus for supplying a uni-directional voltage comprises a gaseous discharge valve, means to cause the valve to generate current pulses, which pulses are rectified and smoothed, a condenser, connected across the valve, adapted to be charged during pulses and to partially discharge through the valve during pulses and means, dependent upon the output voltage, for regulating the voltage to which the condenser charges so as to maintain the output voltage constant. In a preferred manner of carrying out the invention means are provided to maintain the output voltage constant. A condenser C1 is charged through a valve V2 and when a thyratron V3 becomes conducting, due to its grid receiving a positive pulse from the cathode of a valve V1 forming part of a valve oscillator, a current passes comprising a current drawn from the valve V2 and one drawn from the condenser C1 and at the end of a pulse period the thyratron is extinguished by means of a delay line D. Energy is thus delivered to a valve V4 by means of a transformer T2 being rectified and smoothed, so producing a negative uni-directional voltage at the negative EHT terminal. A stabilized potential point A is established by means of a resistor R3 and neon tubes V6, V7 and any variation in the negative EHT voltage from a value pre-set by a potentiometer P2 varies the voltage applied to the grid of a valve V5 and hence the grid of valve V2 to alter the voltage to which C1 charges, thus controlling the pulse amplitude to maintain the EHT voltage at the initial level. The delay line may be omitted by using the pulse generated in the transformer T2 when the valve V4 ceases to conduct to extinguish the thyratron. The arrangement prevents undue ripples in the output voltage and the valve 14 is not required to withstand inverse voltages other than those due to the D.C. output. Fig. 2 (not shown) illustrates a modified arrangement whereby a positive EHT voltage 'is obtained by reversely connecting the valve V4.
Patent GB-762070-A (GB)
Title: Improvements in or relating to dust separators of the cyclone type
Inventor: CRAMPTON LESLIE THOMAS
IPC: B04C5/00
Filed: 1950-12-28
Abstract: 762,070. Centrifugal separators. JONES GAS PROCESS CO., Ltd. March 27, 1952 [Dec. 28, 1950], No. 31451/50. Class 23 A cyclone dust separator has a gas outlet 13 protruding into the separating chamber, and a sloping tangential inlet 11 merging into the helical top plate 14 which is so sloped that on completion of one turn in the chamber the gas stream is immediately below the inlet. The gas inlet is formed by inner and outer stainless steel, tubes, and the rest of the cyclone body and the inlet are formed from mild steel plates lined with refractory material. An element 18 of steel plate or refractory material may constrict the inlet. Dust discharged from the cyclone is collected in a hopper 16 having a discharge gate 17.
Patent GB-410099-A (GB)
Title: Improvements in machines for corrugating cardboard, millboard, paper and the like
IPC: B31F1/28
Filed: 1932-11-08
Abstract: 410,099. Making corrugated cardboard. SMITH, STONE, & KNIGHT, Ltd., Phoenix Chambers, Colmore Row, Birming- ham, and SMITH, P. S., Hallen Lodge, Henbury, near Bristol. Nov. 8, 1932, No. 31524. [Class 141.] A machine for making corrugated cardboard, millboard, paper &c. comprises a pair of corrugated rolls e, h having one or more gaps g and projections h<1> engaging to form depressions d between groups of corrugations c. Glue is applied by a roll and flat backing a by a roll k. The web may be cut centrally of the depressions d to form flats for egg boxes &c. The cardboard b or backing a may be in strips spaced apart.