baber/WOPTO huggingface dataset:
Patent GB-402578-A (GB)
Title: Improvements in or relating to electromagnetic selectors
IPC: H01H67/06
Filed: 1932-10-15
Abstract: 402,578. Automatic exchange systems. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and COLLYER, J. E., c/o General Electric Co., Stoke, Coventry. Oct. 15, 1932, No. 28797. [Class 40 (iv).] Certain contact levels of a uniselector subtend an angle at the spindle equal to the angle between the ends of a plural ended wiper or between the ends of electrically connected single ended wipers so that circuits are completed over first and last contacts of such levels independent of the wiper feeds when the switch is at normal, and in order to keep the number of wiper contacts constant in all positions of the switch, first or last contacts are omitted from other levels. The group selector and common control circuit (part only) shown are, apart from this feature, somewhat similar in nature to those described in Specification 401,811 and are tested over a circuit including normal contacts of the switching relays HA, HB, first and last contacts of wiper SM2 of the selector and a normal contact of the control switch MH. The bank of SM2 is also used to set the selector by marking from MH 1. The object of the invention is attained by removal of the first contact of bank SM5. The invention may be applied to switches having electrically connected staggered wipers making contact with different levels in succession, and the circuit over the wiper feed of a bridging wiper may be used in addition to the circuit over the bridge in the normal position of the wiper. Specification 358,293 also is referred to.
Patent GB-364526-A (GB)
Title: Improvements in pulverising mills
IPC: B02C15/02
Filed: 1930-10-13
Abstract: 364,526. Roller-and-ring mills. INTERNATIONAL COMBUSTION, Ltd., Africa House, Kingsway, London.-(Assignees of Rosencrants, F. H.; Africa House, Kingsway, London.) Oct. 13, 1930, No. 28801/31. Convention date, Oct. 11, 1929. Divided on 364,213. [Class 59.] In a roller-and-ring mill having a pendulum arm on which a pulverizing roller is carried' by a sleeve 21 and is lubricated as described in Specification 364,213, dust is excluded from the upper end of the sleeve by a skirt 25 depending from the casting 5 carrying the trunnions 4. The top of the sleeve is sealed by felt washers 43 which are retained between a screwed gland ring 44 and a spring-pressed ring 56 prevented from rotating relatively to the sleeve 21 by a dowel 47. Specification 221,743, [Class 59, Grinding, crushing, &c.], is referred to.
Patent GB-874725-A (GB)
Title: Improvements in or relating to letterpress printing on plastics
IPC: B41M1/30
Filed: 1959-08-24
Abstract: 874,725. Printing processes. LIERG, F., and WOLF, O. Aug. 24, 1959 [Aug. 29, 1958], No. 28810/59. Class 100(2) A process of letterpress printing on a plastic consists of using a printing ink having a binder comprising a solvent capable of at least swelling the plastic to be printed on and having an evaporation rate less than 1/600 that of ether, and a plastic which is at least partly dissolved in the solvent. The plastic is preferably soluble in the solvent in an amount of at least 30% at room temperature. The solvent may be dibutyl oxalate, glycol monoacetate, diglycol propionate, or cyclohexanone derivatives, such as methyl cyclohexanone glyceryl acetal. The plastic is similar to or related in kind to the plastic to be printed. Suitable plastics for dissolving are those having a low degree of polymerisation, or internally plasticised copolymers, such as copolymers of vinyl chloride and vinyl acetate, vinyl chloride and vinyl isobutyl ether or styrene and acrylic esters. For printing on films of cellulose esters such as celluloid, or for acetate films the plastic in the binder is cellulose nitrate or cellulose acetate.
Patent GB-393831-A (GB)
Title: Improvements in centrifugal governors
IPC: G05D13/00
Filed: 1932-10-15
Abstract: 393,831. Speed governors. TURBINENFABRIK BRœCKNER, KANIS, & CO., Industriegelõnde, Dresden, Germany. Oct. 15, 1932, No. 28892. Convention date, May 12. Addition to 393,816. [Class 57.] In a centrifugal governor, as described in the parent Specification, the sleeve 16 is mounted upon rows of balls 17 secured in holders 17a and mounted upon sleeves 18.
Patent GB-1523400-A (GB)
Title: Halogen-containing resin composition
IPC: C08L27/00
Filed: 1976-07-13
Abstract: 1523400 Lubricants for PVC LION FAT & OIL CO Ltd 13 July 1976 [18 July 1975] 29025/76 Heading C3K [Also in Division C2] Halogen-containing resin compositions contain as lubricants an ester of a C2-6 polyhydric alcohol and a fatty acid of the formula where R1 and R3 are alkyl, R2 is H or alkyl and the sum of carbon atoms in R1, R2 and R3 is 18 to 38. The preferred resin is polyvinyl chloride and the preferred lubricants are prepared from ethylene glycol, 1,3-butane diol, 1,4-butane diol and glycerol and the acids prepared from C20-40 olefins and CO.
Patent GB-1361822-A (GB)
Title: Method for synthesising ammonia
IPC: C01C1/04
Filed: 1971-06-21
Abstract: 1361822 Ammonia-synthesis catalyst JAPAN GASOLINE CO Ltd 21 June 1971 [22 June 1970 22 May 1971(2)] 29035/71 Heading B1E [Also in Division C1] An ammonia-synthesis catalyst is prepared by incorporating an alkali metal with either one or more of the metals Cr, Mo, W, U, Mn, Re, Co, Ni and metals of the second and third series of Gp. VIII, or a mixture of metallic iron and any of the metals Co, Re, Ru, Us or Mo. The catalyst may be supported on alumina, silica, silicon carbide, active carbon or porous carbon. The catalyst may contain 0.1 to 50% wt alkali metal in a weight ratio to transition metal of 1:100 to 3:1. The catalyst may be formed by soaking the transition metal and support in a solution of alkali metal in liquid ammonia:
Patent GB-1261699-A (GB)
Title: Staircase
Inventor: ANDERNACH ANTON
IPC: E04F11/025
Filed: 1970-06-17
Abstract: 1,261,699. Staircase. A. ANDERNACH. 17 June, 1970 [18 June, 1969; 8 May, 1970], No. 29333/70. Heading E1B. The steps of a staircase are horizontally adjustable in step supports which are themselves slidably adjustable in slide rails set into the stringers. The slide rails extend parallel to the edges of the stringers (Fig. 1) or may be disposed vertically (Fig. 3). The step supports are in the form of channel sections 5 which engage, with their free arms, in slots in the steps, the connecting web of each section being slotted to allow horizontal displacement of the step. In an open staircase, the second stringer is replaced by a harp comprising C-section vertical posts (14, Fig. 10) to which connection is made in a similar manner. Alternatively the step support may take the form of a C-section 24, let into the step, the C-section being connected to a corresponding slide rail, set into the stringer, by a connecting screw 7. Again the second stringer may be replaced by a harp (Fig. 17).
Patent GB-897301-A (GB)
Title: Alkyl toluenes
IPC: C07C6/12
Filed: 1958-09-15
Abstract: Toluene in the liquid phase is alkylated by reaction with olefines in the presence of a montmorillonite clay which has been acid-treated, washed and upon which a metal oxide has been precipitated.  The oxide precipitated on the clay may be of aluminium magnesium or manganese. Alkylation is preferably effected at 90 DEG C.-110 DEG C. with propylene to form cymene at a mole ratio of toluene to propylene of 3 : 1 to 5 : 1.  In a modification, polyisopropyl-benzenes are heated with toluene in the presence of the same catalyst to form cymene, cumene and benzene.
Patent GB-1100933-A (GB)
Title: Method of producing butadiene polymer having high percentage of cis-1,4 configuration
IPC: C08F136/06
Filed: 1966-06-30
Abstract: A butadiene polymer having at least 70% of cis-1,4 configuration is prepared by contacting butadiene in the presence of a hydrocarbon solvent at a temperature between - 20 DEG  C. and 150 DEG  C. under an inert gas atmosphere with a catalyst prepared by mixing (1) a compound of cobalt, (2) a halide of aluminium selected from AlX3 and RAlX2, where X is a halogen atom and R is an alkyl or aryl group, and (3) an organotin compound having the formula R14Sn where R1 is an alkyl radical having 1 to 3 carbon atoms, or an aryl, alkaryl or aralkyl radical at a temperature between 0 DEG  C. and 120 DEG  C. under an inert gas atmosphere.  The catalyst is preferably prepared in a hydrocarbon solvent.  Preferred cobalt compounds are cobalt carbonyl, diacetylacetonyl cobalt, triacetylacetonyl cobalt, cobalt stearate and bis-(triphenyl phosphine) cobaltous bromide. Preferred aluminium halides are aluminium chloride, aluminium bromide and ethyl aluminium bromide.  Preferred organotin compounds are tetramethyl stannane, tetraethyl stannane, tetraisopropyl stannane and tetraphenyl stannane. The mole ratio of the aluminium halide to the organotin compound is preferably in the range of 0.01:1 to 10:1 and that of the sum of the aluminium halide and the organotin compound to the cobalt compound is preferably in the range of 10:1 to 1000:1. The catalyst is preferably present in an amount in the range of 0.005 to 0.1 milligram atom of cobalt based on the cobalt compound per mole of butadiene.
Patent GB-1211840-A (GB)
Title: Bootee for hard casts
IPC: A43B3/16
Filed: 1969-06-11
Abstract: 1,211,840. Boots &c. SCHOLL MFG. CO. Ltd. 11 June, 1969 [24 June, 1968], No. 29681/69. Heading A3B. A bootee for a hard cast 9 consists of a tubular body portion 1 of stretchable material and a sole piece 4 secured to the forward lower end portion of the body 1 leaving the rear part of the lower end of the body 1 open at 8 e.g. to allow the heel spike or plug 11 of a walking cast 9 to project through the opening 8. The body is preferably knitted from suitable stretch fibres and has doubled over portions 2, 3 at its top and bottom. In a first embodiment (Fig. 4) the bottom end of the body 1 is partially joined by a seam 5 and overlies the sole 4 to which it is attached by cement and stitching 6. In a modification (not shown) only the edge of the body 1 overlies and is secured to the margin of the sole 4. The bootee may also include a partial insole of cushioning and/or heat insulating material.
Patent GB-519291-A (GB)
Title: Improvements in or relating to the spring suspension of motor cycles and the like vehicles
IPC: B62K25/28
Filed: 1938-10-14
Abstract: 519,291. Spring frames for motor-cycles &c. DAWSON, W. L. Oct. 14, 1938, No. 29760. [Class 136 (iii)] In a rear-wheel spring suspension for motorcycles &c., the axle of the wheel is carried by a pivoted fork, the ends of the arms of which pass through slots in substantially vertical cylinders and engage between the diamÚtrallyslotted ends of pairs of plungers movable in the cylinders under the control of springs. Each arm of the pivoted fork has a flattened rear end 5 carrying the wheel axle 4 and passing freely through vertical slots 14, 17 in an inner cylinder 12 and an outer cylinder 16, the latter acting as a distance - piece between lugs 8 on the longitudinal members of the frame. The end 5 engages diametral slots 21, Fig. 4, in two plungers 18, the end faces 18a of the slots being cut to such a curvature that the end 5 is in line contact with the plungers and is slidable between them without causing substantial separation of the plungers during the normal amplitude of displacement Main and rebound springs 22, 23 engage the spigoted ends 20 of the plungers 18. Dust is excluded by an envelope 24 or by slotted felt-lined plates.
Patent GB-817154-A (GB)
Title: Improvements in or relating to apparatus for detecting faulty sheet feeding
Inventor: BROIDO DANIEL
Filed: 1955-10-19
Abstract: 817,154. Feeding sheets. INTERNATIONAL COMPUTERS & TABULATORS Ltd., [formerly BRITISH TABULATING MACHINE CO. Ltd.]. Oct. 19, 1955, No. 29843/55. Class 100(1) Detecting faulty feed. Apparatus for detecting the passage of two or more superposed sheets along a feed path comprises a test capacitor, between the plates of which the sheets pass, connected to an electrical bridge circuit which is adapted to operate an alarm or control means if a predetermined degree of unbalance is effected therein due to the presence of two superposed sheets within the capacitor. Preferably, a comparison capacitor having a sheet therein, or in the path of a sheet which has passed the test capacitor, is also used in the circuit. The distance between the plates of the capacitors is adjustable by screw means. They are connected to the bridge circuit at TS and CS, respectively, by screened cables. The circuit comprises a normally quiescent oscillator VI and a normally non-conducting gas-filled valve THI which is triggered by operation of the oscillator in response to change in the capacitance of the capacitor TS. The anode circuit of valve VI includes coils 7, 8 and a capacitor 9: the H.T. supply from this circuit is decoupled by a choke 10 and capacitor 11. The coils 7, 8 are coupled to coils 12, 13 which, with variable capacitors 14, 15 form a bridge circuit connected to the central grid of the oscillator. The bridge is adjusted so that, with a single sheet in each of the capacitors in the feed path, the bridge is out of balance in one sense and the oscillator is held against oscillation. When the unbalance is reversed by the passage on two superposed sheets, the oscillator VI starts to oscillate, coil 18 receives an output which is rectified by a diode 19 and applied to the grid of the valve THI. The latter is fired, and a relay 24 in the anode circuit is energized to complete an alarm or control circuit (not shown). The relay 24 could cause an electromagnet clutch in the sheet-feeding apparatus to be disabled. In a modification, the comparison capacitor is replaced by a fixed capacitor. The positive supply voltage to the valve THI is controlled by cam-controlled contacts which are closed when the middle of the sheets lie between the plates of the two capacitors. Specification 751,931 [Group XIX] is referred to.
Patent GB-1104366-A (GB)
Title: Apparatus for producing crimp yarn
IPC: D02G1/02
Filed: 1965-07-14
Abstract: 1,104,366. Air conditioning; removing noxious gas in industrial operations. SULZER BROTHERS Ltd. 14 July, 1965 [24 July, 1964], No. 29859/65. Headings F4V and F4X. [Also in Division D1] A room 41 which houses machines 42, 43, for false-twist crimping yarns (see Divisions D1- D2) is equipped with systems 44, 45, which deliver temperature and/or humidity conditioned cooling air in the direction of arrows 46. As shown in the left-hand side, the spent air and unwanted vapours produced in the treatment of the yarns flow freely through an opening 48 into a ceiling exhaust duct 47. In an alternative arrangement (shown in the righthand side) the spent air &c. passes through openings 49 into a transverse duet and thence to the duet 47. Air &c. then passes through a duct 50 and orifices 51 to chambers 52, 53, housing conditioners 54, 55, connected by pipes 56, 57, to a fresh air source. Conditioned air, mixed with fresh air as desired, is returned to system 44, 45, through ducts 58, 59.
Patent GB-649696-A (GB)
Title: Improvements in and relating to press platens
IPC: B30B15/06
Filed: 1948-11-18
Abstract: 649,696. Press platens. FOSTER, YATES & THOM, Ltd., and WORSWICK, A. Nov. 18, 1948, No. 29994. [Class 87 (ii)] [Also in Groups VIII and XXII] A press platen adapted for the circulation of heating or cooling fluid therein has passages g extending from side to side of the platen and recesses in opposite edges of the platen into which the passages g open. Sealing bars b, c are fitted into the recesses and passages f are cut either in the platen (as shown) or in the bars b, c, or both, between adjacent passages g in staggered relationship on the two sides of the platen so that the passages g are connected in series between the inlet hand outlet i for the heating or cooling fluid. Jointing material e may be interposed between the bars b, c and the bottom of the recesses. The bars are secured by screws d, or by welding &c.
Patent GB-913960-A (GB)
Title: Apparatus for the reproducible adjustment of the setting means of a follow-up control arrangement, more especially for stage lighting installations
IPC: H05B37/02
Filed: 1960-08-31
Abstract: 913,960. Programmed control for stagelighting. SIEMENS-SCHUCKERTWERKE A.G. Aug. 31, 1960 [Aug. 31, 1959], No. 30094/60. Class 38 (6). [Also in Group XXXV] The slider 5 of a potentiometer 2, which is stated to operate a stagelighting dimmer by a follow-up circuit, is set in a predetermined position by a marked card 1. The slider 5 is mechanically coupled to the card holder by an electromagnetic clutch 6. The card and slider are then moved together until the mark 4 on the card reaches a photo-cell 3. The clutch is de-energized, the card moves on, but the slider remains. A number of similar slides can be arranged in banks, operated by a single card with columns of marks. The photo-cell may respond to reflected or transmitted light. The mark may be opaque, or holes may be punched. The card may be replaced by a tape. When the card reaches its lowest limit, the slider may be reset. The card may record only changes in lighting required from scene. The card may be recorded by manually setting the slider and operating a printing key. The slides may rotate instead of moving linearly. The photocell may be replaced by a mechanical sensing device. The electromagnetic clutch may be replaced by a mechanical locking device.
Patent GB-374750-A (GB)
Title: Improvements relating to jacking devices for motor cars
IPC: B60S11/00
Filed: 1931-10-30
Abstract: 374,750. Jacking attachments on motor vehicles. BOISSELOT, C. J., 114, Rue Castagnary, Paris. Oct. 30, 1931, No. 30102. Convention date, April 4. [Class 79 (iii).] A device which is attached to the axle of a motor vehicle in order to increase the range of a lifting jack comprises a cast element 10 provided with a seating 11 for the jack and a gripping screw 14 mounted in a sleeve 12. The screw is provided with a spring-pressed hall 17 which firmly holds the axle against a beak 13.
Patent GB-1001503-A (GB)
Title: Method of and apparatus for treating metals by heat
Inventor: PICKTHALL JOHN EDWARD
IPC: C21D1/74
Filed: 1962-08-04
Abstract: A method of heat-treating a metal comprises placing the metal in a gas-tight chamber 10, <PICT:1001503/C6-C7/1> exhausting the chamber and filling it with an inert gas, e.g. argon through a pipe 64, heating the metal in the inert gas, e.g. by means of radial elements 42, while maintaining the pressure within the chamber at or near atmospheric pressure, e.g. using valve 64B and pressure gauge 64C, and thereafter passing a cooling fluid, e.g. air through a pipe 28 from a fan or air pump, around the chamber from bottom to top to cool the chamber and enable removal of the heat-treated metal.  The cooling fluid may be directed either on to the under surface of a baffle plate 24 located in the downward projection of the chamber 10 or into an upwardly opening channel the mouth of which surrounds the downward projection of the chamber, see Fig. 5 (not shown).  The peripheral flow of cooling fluid is preferably evacuated, e.g. from the cavity 21 within an outer insulated casing comprising a shell 11 and lining 19, 20, into a conduit 38 peripherally surrounding the upper end of the chamber and opening to the atmosphere, e.g. through a pipe 40.  Reference has been directed by the Comptroller to Specification 908,163.
Patent GB-377043-A (GB)
Title: Improvements relating to flushing cistern valves
IPC: E03D1/30
Filed: 1931-10-31
Abstract: 377,043. Water - waste - preventers. SHANKS & CO., Ltd. and SHANKS, R. J., Tubal Works, Barrhead, Renfrewshire. Oct. 31, 1931, No. 30197. [Class 26.] Flushing cistern valves comprise a valve seating 2, a valve disc 9 having a suction face 91 co-operating therewith, and a suction member 6 normally out of engagement with the valve disc 9 but movable under manual control so as to be caused to adhere thereto, and moveable away from the seating 2 together with the adhering valve disc so as to open the valve, leakage being provided so that after a predetermined time the suction member and valve disc separate. A spring 8 is provided between a shoulder 7 on a rod 5 carried by the suction member 6, and a shoulder 4 integral with the valve structure, so that the movement of the suction member 6 into engagement with the valve disc 9 is in opposition to the spring, which then serves, on release of the manual means to move the suction member and valve disc away from the seating 2. The shoulder 4 is formed on the upper end of a tubular column 3 provided on a cage 1 surmounting the seating 2, the rod 5 being reciprocable within the column 3. A spindle 10 extends upwardly from the valve disc 9 and is slidingly accommodated in a guide socket 11 in the rod 5. Incorporated in the upper end of the rod 5 is a crosshead 12 which is connected by links 13 to the effort end of a bifurcated lever 14 fulcrummed on the bracket forming the shoulder 4. The load end of the lever 14 is connected bv a link 15 to the usual lever 16, which may be operated directly by hand, or by means of a metallic knob or finger operated lever with appropriate connections.
Patent GB-143492-A (GB)
Title: Improvements in and relating to switches for electric installations
IPC: B01D5/00
Filed: 1919-12-03
Abstract: 143,492. Graf, A. May 16, 1919, [Convention date]. Switches, quickaction, have a number ot contact-pieces 2 embedded in grooves or slots in an insulating - base 1, e,ach of the contactpieces being bored with a hole to receive a conducting wire 3, and a spring- pressed metal bridgepiece 5 adapted to connect the contact-pieces in pairs as desired. The wires are scoured in position by a clamping-ring 4. The bridgepiece is mounted on a square portion of a spindle 6 provided with an operating-handle 7, which, in the form shown, serves to maintain the cover 8 in position. In a modification, the cover is secured to the clamping-ring 4 which is screw-threaded for this purpose. The upper surfaces of the contact-pieces 2 are grooved, the co-operating part of the bridge-piece being pressed into the grooves by a spring 9.
Patent GB-536588-A (GB)
Title: Improvements in or relating to pulse discriminating systems
IPC: H03K9/00
Filed: 1939-11-17
Abstract: 536,588. Television. STANDARD TELEPHONES & CABLES, Ltd., and BEATTY, W. A. Nov. 17, 1939, No. 30279. [Class 40 (iii)] In a method of discriminating between pulses of different durations, such as line and frame synchronizing pulses for television, the duration of all the pulses is reduced by the same amount, thus increasing the ratio of the pulse durations and facilitating separation by frequency discriminating networks. The duration of the pulses is reduced by feeding them through two channels of different delay time, the difference in delay time being less than the duration of the shortest pulse, and combining the outputs of the channels, as in Specification 491,728, so as to give a series of derived pulses of durations shorter than the original pulses.