baber/WOPTO huggingface dataset:
Patent GB-1537106-A (GB)
Title: Process for the production of non-inflammable polytriazines
IPC: C08G73/00
Filed: 1976-07-22
Abstract: 1537106 Polytriazines BAYER AG 22 July 1976 [24 July 1975] 30588/76 Heading C3R Polytriazines are obtained by a process comprising condensing less than 3 mols of a compound of formula (H 2 N) n -Ar-(OH) m , where Ar is an aromatic radical which may be interrupted by bridge members, n is 0, 1 or 2, m is 1, 2, 3 or 4 and n + m is at least 2, with 1 mol of a phosphorus trihalide, oxytrihalide or thiotrihalide in the presence of a base, to obtain a compound containing free amino or hydroxyl groups which is then reacted with a cyanogen halide in the presence of a base to form a compound containing cyanamide or cyanic acid ester groups which is heated at up to 350 C. to polytrimerize the compound and form the polytriazine. In examples bis-2,2-(4-hydroxyphenyl) - propane, bis - 2,2 - (4 - hydroxy - 3,5- dimethylphenyl) - propane, hydroquinone, 2- (4 - hydroxyphenyl) - 2 - (4 - aminophenyl) - propane and p-aminophenol are all reacted with phosphorus oxychloride and bis-2,2-(4-hydroxyphenyl)-propane is reacted with phosphorus thiochloride, the base being triethylamine; the products then are reacted with cyanogen chloride in the presence of triethylamine to form prepolymers which are heated to obtain the polytriazines; in one instance a mixture of bis-2,2- (4-cyanatophenyl)-propane and prepolymer is heated. The polytriazines are non-inflammable.
Patent GB-1070239-A (GB)
Title: Water control valves
IPC: F24D19/10
Filed: 1963-11-01
Abstract: 1,070,239. Valves. DRAYTON CONTROLS Ltd., and P. D. H. COTTRILL. Sept. 8, 1964 [Nov. 1, 1963], No. 30589/66. Divided out of 1,070,238. Heading F2V. A fluid control valve includes an inlet port 3 in open communication with an inlet chamber 2 containing a movable valve member 6 which co-operates with a seat 5 and is connected to an adjustably supported temperature-responsive bellows 7. The temperature setting of the valve is varied by a hand wheel 11 supporting the bellows through a socket 10 and having a screw-threaded connection 9 with a cover 8.
Patent GB-176057-A (GB)
Title: Improvements in or relating to suspension chains for electroliers and for like electrical purposes
IPC: F16G13/16
Filed: 1920-10-30
Abstract: 176,057. Ferry, E. J. Oct. 30, 1920. Oval-link chains; sheet-metal chains; tubular and like through-way link chains.-In chains for suspending electroliers &c. of the type in which alternate links are grooved externally to receive the flexible leads, each externally-grooved link a has an internal embossment a<1> cut transversely at a<2> so as to form an open-ended link for lengthening or shortening the chain. The intermediate closed links b are grooved internally as shown in Fig. 3, the groove engaging the embossment a<1> of the adjacent links and maintaining them in the closed position. For the better protection of the flexible leads passing through the links b, the latter may be formed with a contracted waist part as shown in Fig. 7. In the modification shown in Fig. 8, the intermediate links b are of flat formation, but have apertures b<2> for engaging the embossments on the links a.
Patent GB-733205-A (GB)
Title: Process for the preparation of new corticotropic substance
IPC: A61K38/35
Filed: 1952-12-04
Abstract: For the production of a corticotropic substance, the serum of gravid mares is treated, e.g. at pH5, with an organic water-miscible liquid, e.g. an alcohol or ketone, so as to precipitate the serum albumins and globulins, the separated mother liquor is treated with a second addition of a water-miscible organic liquid to precipitate the corticotropic substance, which is formed of at least three components, in admixture with the gonadotropic hormones, and the precipitate is thoroughly washed with 50 per cent aqueous alcohol to free it from the gonadotropic hormones and other impurities.  The same organic liquid may be used in both precipitations, and is higher in relation to the mother liquid or serum in the second than in the first.  The crude precipitate freed from the gonadotropic hormones is treated with water or alkaline solution at pH10, and precipitated by an organic liquid, e.g. alcohol, this operation being repeated as desired. The three components may be separated, substance C by dialysis, and factors A and B by fractional precipitations. Specification 503,642 is referred to.
Patent GB-172197-A (GB)
Title: Improvements in checks for the picker sticks of looms
IPC: D03D49/38
Filed: 1920-11-01
Abstract: 172,197. Haddan, R., (Hunt, J. M.). Nov. 1, 1920. Checking picking-sticks.-A concave-faced bar 5, shown in sectional plan, with other framework, as shown, is movably guided in a channel in a block 1 fixed on the lay, and is held by a bolt 8<a> passing through a slot 6 in the bar to allow limited oscillation of the bar. When the picker stick 17 in its oscillating motion carries the bar along with it, the concave surface of the bar bears against a friction washer 10 on the bolt 8<a>, the washer being yieldingly held against the surface by a spring 9 adjustable by a nut 12, so that the pressure and resistance increase as the bar is carried farther from its central position. The bead 11 of the bolt 8a is arc-shaped, and the washer-retaining cap 8 is correspondingly shaped to afford a rocking connection between the cap and bolt to prevent the bar 5 from binding at the end of its stroke. Angular buffer blocks 15 are fixed between the ends of the bar and a strap 14, and buffer blocks 7 are fixed in the ends of the slot 6. The block 1 and bar 5 are preferably made of wood such as hickory.
Patent GB-812773-A (GB)
Title: Apparatus for making steel wool pads and rolls
IPC: B23P17/06
Filed: 1956-10-10
Abstract: 812,773. Making scouring rolls and pads. BRILLO MANUFACTURING CO. OF GREAT BRITAIN Ltd. (Brillo Manufacturing Co. Inc.). Oct. 10, 1957 [Oct. 10, 1956], No. 30860/56. Class 83 (2). A machine for making steel wool rolls comprises a pair of feed rolls 1 to feed steel wool ribbon and a cutter 5, 6 synchronized with the feed rolls to cut the ribbon into predetermined lengths, the severed lengths of ribbon being transferred to a conveyer belt 15 over which a stationary member 17 is arranged to engage the leading end of the ribbon and turn it back on itself so that a loose roll is formed as the ribbon is carried under the stationary member by the belt. The feed rolls 1 are corrugated to prevent slip and the rate of feed may be varied so that, after passing through a slotted guide, various predetermined lengths may be cut from the ribbon by a pivoted cutter 5 which cuts against a fixed blade 6. A frame 11 mounted on trunnions 12 is tilted to receive the free end of the ribbon before the cutter severs the length. The surface of the conveyer belt 15 may be covered at spaced intervals or may be entirely surfaced with emery cloth. The stationary member 17 which is also surfaced, on the underside, with emery cloth is vertically adjustable by screws 18 and has a hanging strip 20 of emery cloth to turn back the leading edge of the ribbon and start the roll. If steel wool pads are required the loose rolls are compressed between the belt 15 a second belt 21, also having emery cloth on the surface, the belts being backed by presser rolls 23, 24. The roll 23 is adjustable and is raised sufficiently to permit loose rolls to pass when pads are not required.
Patent GB-1559041-A (GB)
Title: Polyamide mouldings
IPC: C08L21/00
Filed: 1977-07-22
Abstract: The polyamide composition contains the following components, mixed with one another:     1) an aliphatic polyamide, 2) a copolymer comprising from 60 to 99 % by weight of polymerised alkadiene having 4 to 6 carbon atoms and the remaining 40 to 1 % by weight of polymerised acrylonitrile, where from 40 to 99.9 % of the total weight of components 1) and 2) is made up by component 1).   The polyamide composition can be used for the production of impact-resistant mouldings.
Patent GB-450534-A (GB)
Title: Improvements in and relating to filtering apparatus
IPC: B01D29/46
Filed: 1935-07-26
Abstract: 450,534. Filtering gases. MENSFORTH, G. W., 147, Warton Terrace, Heaton, Newcastleon-Tyne. July 26, 1935, No. 30912/34. [Class 8 (ii)] [See also Group I] A filter comprising a helix or a number of rings is provided with a cleaning blade p having a cutting edge p<1> and a part p<2> which closes the aperture between adjacent rings to prevent the accumulated matter detached by the cutting edge p<1> from being forced out on the outlet side of the filter. Any matter on the outlet side of the apertures is guided to the inlet side by the extended ends p<3> of the blade. Fig. 4 shows a helical filtering element f<1> with a cleaning blade p mounted in a holder r which can slide vertically on a rod x, the cleaning being effected by rotating the filtering element by a shaft s. The blade p may be situated inside or outside the element f<1> and when inside it may be mounted on the shaft s, the filtering element remaining stationary during the cleaning process. Fig. 11 shows another form of filtering element with which the cleaning blade may be used in which a number of rings f of triangular section are spaced apart by collars g<1> threaded on bars g. The bars g can be moved towards and away from the rings f thus altering the distance between the latter. The holder r may, as shown in Fig. 6, form part of a spiral thread and abut against the filter element f. Two or more filter elements may be mounted within a single casing, the outlet of one element forming the inlet of the next. The elements may be placed one above another or one within another, and one may be rotatable and have a stationary cleaning blade while the other is fixed and has a moving blade.
Patent GB-650207-A (GB)
Title: Improvements in or relating to polarised relays
Inventor: JOHN JOSEPH RAYMOND
IPC: H01H51/22
Filed: 1948-11-29
Abstract: 650,207. Electromagnetic relays. JOSEPH, R. J., and SHIPTON & CO., Ltd., E. Nov. 29, 1948, No. 30981. [Class 38(v)] In high speed polarized relay bouncing of the contacts is reduced to a minimum by supporting the moving contacts 14 on the balanced armature 8, 8<SP>1</SP>, by a spring arrangement comprising a central leaf spring 19 which carries at its free end an insulating disc 22 through the centre of which passes a metal stud the ends of which form the contacts, side springs 23 being also arranged so as to press with their free ends against the disc 22. Preferably the spring 19 has a hole and the disc 22 is moulded into position, some of its material passing  through the hole. The co-operating "fixed" contacts are also mounted on leaf springs and are adjustable by a nut 34 or a screw, Figs. 6, 7 (not shown). The armature may carry additional contacts 14 mounted on additional leaf springs and co-operating with additional fixed contacts. The armature consists of two plates 8, 8<SP>1</SP>, which grip between them the centre portion of a blade spring 9 fixed at its ends, thereby forming a pivotal mounting for the armature. The upper and lower ends of the armature are situated opposite the poles of a permanent magnet and its lower end moves in the gap between the poles of the electromagnet 6.
Patent GB-209243-A (GB)
Title: Improvements in automatic electric motor control systems
IPC: B60L15/04
Filed: 1922-11-13
Abstract: 209,243. Ferguson, A. D., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 13, 1922. Master control systems; automatic starting systems.- In motor starting systems where a sequence of accelerating steps proceeds automatically subject to the siuspending action of a current limit relay, an automatic sequence switch is driven by the spindle of the main controller and a manual contact device in combination with a single-coil notching relay is used to short circuit the contacts of the limit relay so as to make one or mere non-automatic steps in case of unusual mechanical resistance during the accelerating period. The apparatus described comprises two motors 1, 2, Fig. 1, accelerated by a series of rheostatic and series-parallel steps effected by a group of separate switches closed bv cams from a drum rotated in a known manner by pneumatic cylinders 19, Fig. 3, with electromagnetic valves 20, 21. After a master controller 22 has been moved to the series accelerating position b<1>, the valves 20, 21 are intermittently energized and the main controller 18 is advanced automatically. The circuits controlling the automatic progression are subject to interruption by a current limit relay 9 but can be restored for one further step only, by closure of a manual switch 52. The circuits controlling further advance of the drum are then broken by the action of the notching relay 46 which can only be reset by opening of the manual switch 52. Further non - automatic stops can subsequently be effected by closing and opening the switch 52 for the required number of times. Advance of the main controller bevond the full series notch cannot take place until the master controller has been moved to its parallel position c'. The circuits may be modified so as to alter the conditions under which automatic acceleration can be resumed after a non-automatic step. The invention is applicable to motors for traction and other purposes.
Patent GB-732643-A (GB)
Title: Well drill
Inventor: REIFSCHNEIDER WINSTON HARRIS
IPC: E21B10/20
Filed: 1953-11-09
Abstract: 732,643. Earth-boring drills. HUGHES TOOL CO. Nov. 9, 1953, No. 31015/53. Class 85. In a rotary earth-boring drill, the drill head consists of a plurality of substantially identical arcuate segments 3, 4, 5 welded together, the upper portion of the segments forming a hollow pin 10 and each lower portion having a downwardly extending bit leg 7 on which a rolling cutter 9 is rotatably mounted. A downwardly extending hollow boss 25, in communication with the interior of the hollow pin 10, is provided at the side of each bit leg 7. A wear-resisting nozzle 26, Fig. 3, is located in the boss 25 and is connected to a cavity 22, constituting a portion of the bore of the pin 10, by a drilled passageway 27. Drilling fluid is supplied through each boss 25 and is thereby directed between adjacent cutters. In a modification a cavity 22<SP>1</SP>, Fig. 4, is bifurcated at its lower end to form cavities 28, 29, and the cavity 28 merges smoothly into a bore 30 in the boss 25.
Patent GB-889416-A (GB)
Title: Stem and envelope for electron discharge devices
IPC: H01J5/20
Filed: 1960-09-08
Abstract: 889,416. Discharge tubes. RADIO CORPORATION OF AMERICA. Sept. 8, 1960 [Sept. 8, 1959], No. 31027/60. Class 39(1) The envelope 30 of a discharge device has, at one end 31, a plurality of inwardly projecting supporting elements 33 having surfaces lying in a plane normal to the longitudinal axis of the envelope. These surfaces engage and support a header member 34, from which an electrode assembly is supported, and are formed to provide a free exhaust path between the envelope and the header member during bakeout and exhaust. As shown, three indentations 33 are formed in the envelope portion 32 to provide support surfaces for ceramic wafer 34. A ring of brazing material 36 is melted to form a seal between the circumferantial edge of wafer 34 and the envelope end 31.
Patent GB-410160-A (GB)
Title: A hair setter
IPC: A45D2/44
Filed: 1932-11-04
Abstract: 410,160. Hair - waving appliances. TAYLOR, A., 18, Castle Road, Epsom, Surrey. Nov. 4, 1932, No. 31088. [Class 131.] A hair-setting device comprises two clips of pliable material each consisting of a toothed arm A and a hair-retaining arm B attached or hinged thereto and adapted to be secured in contact with the teeth E by engagement with the curved end H of the arm A, the toothed arms A being provided on the back with hooks C adapted to be engaged by slotted links D. In use, the clips are engaged in the hair with the ends H facing in opposite directions, the clips being parallel, about an inch apart, and with the ends in alignment ; the clips are then moved laterally in opposite directions until the hooks C on the two clips are in alignment, to form a wave, and are secured in this position by the links D. According to the Provisional Specification, the clips are secured in position in the hair by rings of tape or suitable material passing round hooks, rings or the like on the back of the clips.
Patent GB-666963-A (GB)
Title: Improvements in valve for vacuum pack closures
IPC: B65D51/16
Filed: 1947-11-24
Abstract: 666,963. Closures fitted with valves. DUO-VENT VACUUM CLOSURE CO. Nov. 24, 1947. [Dec. 27, 1938] No. 31093/47. Class 125(iii). [Also in Group XXIX] A valve for receptacles exposed to differential internal and external fluid pressures comprises a valve seat 16 formed by an annular crest merging into an axially extending opening 17, a valve element 26 including a shank 30 having a flange 34 at one end co-operating with the lower end 18 of the opening and a flexible sealing flange 31 at the other end overlying the crest, and means permitting the passage of fluid from the interior of the receptacle to the underside of the sealing flange. As shown, the valve element 26 is formed of resilient material and is pushed into the conical opening until the flange 34.hooks over the end 18. Increased internal or reduced external pressure allows the element to become elongated so that fluid passes through the slot 38 to the space 43 and lifts the flange 31. If the opening 17 is cylindrical, elongation of the member will produce lateral contraction to form a space 43, or the shank may be ribbed. The seal between the flange and the seat can be broken by inserting, e.g. a finger nail, between a reinforcement 33 and the flange and lifting the element. In a modification the wall of the shank is ported. In another arrangement, the element is formed of a rubber washer clamped between a metal cap and a ported metal cylinder which slides in the opening. A perforated seal, e.g. of paper, may be attached to the lid 11 of the receptacle to cover the valve.
Patent GB-672778-A (GB)
Title: Improvements in or relating to eddy-current switches for controlling electric motors
Inventor: KIDBY CHARLES EDWIN
IPC: H01H3/56
Filed: 1948-12-01
Abstract: 672,778. Magnetic switches. WATFORD ELECTRIC & MANUFACTURING CO., Ltd. Oct. 26, 1949. [Dec. 1, 1948] No. 31161/48. Class 38 (v). [Also in Group XXXV] An eddy-current switch for reverse-plugging an electric motor is provided with means to prevent the contacts opening until the motor has practically stopped. A copper cup 11 on a shaft 12, driven by the motor, rotates between an iron ring 14 and a magnet 15 pivoted on a shaft 16, whereby the magnet also tends to rotate and a pin 18 thereon moves one of two levers 19 so that its switch arm 21 engages a corresponding contact 22. The levers 19 are displaceably mounted on a rod 28 on an insulating plate 23 and centralised by springs 20 and when a lever is deflected by the pin 18 it is retained by a spring-loaded latch 24 pivoted at .25 and having a step 26 engaging a slot in the lever extremity. The lever 19 thus cannot return to open the contacts 21, 22 until released by the pin 18 engaging the free end of the latch, which action does not occur until the pin has returned to its central position corresponding to a stationary condition of the motor. In an alternative construction, the magnet 15 is driven by the motor and the copper cup 11 operates the levers 19. To increase the force operating the levers by eliminating an air gap, the ring 14 may be mounted on the cup, Fig. 3 (not shown). The latter arrangement forms the subject of Specification 672,859, [Group XXXV].
Patent GB-358302-A (GB)
Title: An improved folding combined table and seat
IPC: A47B3/14
Filed: 1930-10-18
Abstract: 358,302. Tables and seats. HOBSON, P. W., Imperial Works, Connaught Street, Nottingham, ANSELL, A. W., 54, Basils Road, Stevenage, Hertfordshire. Oct. 18, 1930, No. 31233. [Classes 52 (ii) and 52 (iii).] A combination folding table and seat comprises a base frame A, a table B, and seat F each on four legs C, D, G, H, pivoted to it and adapted to be folded downwards, the seat under the table. The rear seat legs H are extended upwards to carry a back support K. The table and seat are held rigid by jointed stays L, N and crossed stays P, Q.
Patent GB-153328-A (GB)
Title: Improvements in or relating to milking machines
IPC: A01J5/04
Filed: 1920-11-04
Abstract: 153,328. Turk, W. F., and Nielsen, S. Oct. 17, 1919, [Convention date]. Cow-milkers.-Relates to improvements in the milk-releaser and teat-cups of a pneumatic milking-machine. The releaser comprises two chambers A<2>, A<3> into the upper of which the milk pipe D leads through a valve D<1>, a second valve C providing communication between the two chambers, and an outlet valve C<1> being arranged at the bottom of the chamber A<3>. Nipples E<3>, E<4> are connected to ports E, E<1> of a pulsator, the ports being alternately placed in communication with the vacuum ports E<6> and the atmosphere by a slide-valve E<5>. The air inlet G<1> to the chamber A<2> is regulated by means of a screw H, and a vent D<2> in the valve D<1> allows the passage of a small quantity of air into the milk-pipe D. When air is admitted to the chamber A<2> the milk therein flows into the exhausted chamber A<3>, and when the connexions are reversed the milk collects again in the chamber A<2>, and flows from the chamber A<3>. The teat-cup lining L is of uniform thickness and formed with indcntations deeper and wider at the top of the cup than below to cause the lining to collapse progressively. The indentations may take the form of a tapering depression or of a series of circular depressions L<4> diminishing in size towards the lower end of the cup. The lining may be reinforced.
Patent GB-1211856-A (GB)
Title: Improvements relating to vehicle fee metering
Inventor: BRADNAM RONALD HASTINGS
IPC: G07B15/00
Filed: 1967-07-06
Abstract: 1,211,856. Vehicle fee metering. PLESSEY CO. Ltd. 8 July, 1968 [6 July, 1967], No. 31261/67. Heading G4T. A fee metering device carried by a vehicle is actuated by power received from an external transmitter to step a unit fee, and switching means associated with the metering device affords encoded information which corresponds to the aggregate fee for transmission on interrogation of the switching means to a fee registration centre. The metering device is of the visual display cyclometer type. The power is received electromagnetically or by induction coupling from a roadside fee charging point. The switching means may comprise electrical contacts, printed circuit boards, light-sensitive devices, capacitors, inductors, or transformer coils.  The aggregate fee together with preceded vehicle identification data is transferred from the vehicle to the fee registration centre under the control of a clocking system by serial mode frequency shift coding. Synchronization between data transfer equipment in the vehicle and the interrogating unit is achieved by prefixing the data to be transferred with a coded synchronizing word or prefix and by providing a continuous interlock or control interlock from the interrogating unit.