baber/WOPTO huggingface dataset:
Patent GB-928793-A (GB)
Title: Flameproofing of paper
IPC: D06M15/431
Filed: 1960-10-05
Abstract: An aqueous composition for improving paper in respect of flame-retardance, bursting strength and resistance to fungi, rot, mildew &c. comprises (I) 10 to 30 parts by weight of tetrakis-(hydroxymethyl)-phosphonium chloride, (II) 2 to 10 parts by weight of triethanolamine, (III) 10 to 50 parts by weight of vinyl chloride-vinylidene chloride copolymer latex, and (IV) enough water to give a content of 10 to 60% by weight of non-aqueous ingredients. The composition may also contain a urea-formaldehyde precondensate in amount up to 75 parts, but preferably of 35 to 55 parts by weight. Reference has been directed by the Comptroller to Specification 740,269.ALSO:An aqueous composition for improving paper in respect of flame-retardance, bursting strength and resistance to fungi, rot, mildew &c. comprises (a) 10 to 30 parts by weight of tetrakis-(hydroxymethyl)-phosphonium chloride, (b) 2 to 10 parts by weight of triethanolamine, (c) 10 to 50 parts by weight of vinyl chloridevinylidene chloride copolymer latex, and (d) enough water to give a content of 10 to 60% by weight of non-aqueous ingredients. The composition may also contain a urea-formaldehyde precondensate in amount up to 75 parts, but preferably of 35 to 55 parts by weight. Paper may be treated by impregnating it with the composition, which may first be diluted, but not below 10% of non-aqueous ingredients, drying, e.g. at elevated temperature, and curing, e.g. at 120 DEG -160 DEG C.  The Specification also describes for purposes of comparison a composition containing urea and trimethylol-melamine but no copolymer latex.  Reference has been directed by the Comptroller to Specification 740,269.
Patent GB-922154-A (GB)
Title: Diode ring circuit
IPC: H03C1/58
Filed: 1959-10-08
Abstract: 922,154. Phase-sensitive circuits. MINISTER OF NATIONAL DEFENCE OF HER MAJESTY'S CANADIAN GOVERNMENT. Oct. 8, 1959 [Jan. 28, 1959], No. 34164/59. Class 38 (4). [Also in Group XL (c)] In a diode ring modulator or demodulator, each arm of the bridge comprises a pair of reversely connected diodes d 1 -d 8 , one (d 5 -d 8 ) of each pair having a much lower breakdown reverse voltage, e.g. 10 volts, than the other, so that a higher carrier switching voltage applied to transformer T 2  is required to produce conduction in each arm. This allows a higher output voltage at T 1  to be obtained without reaction of the latter switching on either of the switched-off diode arms and causing distortion. The reversely conducting diodes d 5 -d 8  may be replaced by gaseous discharge tubes. The circuit may be used as a switch controlling D.C. output polarity.
Patent GB-601142-A (GB)
Title: Improvements in the production of amino-acids and intermediates therefor
Filed: 1945-12-18
Abstract: Formylaminoacid esters are made by hydrogenating esters of cyano-acids in the presence of an ester of formic acid.  The products may be hydrolysed to the aminoacids.  The process applies especially to the preparation of a a -disubstituted or dialkyl-b -aminopropionic acids, e.g. aminopivalic acid.  Starting materials specified are esters of diethyl-, ethyl-methyl-, diphenyl- and ethylcyclohexyl cyanacetic acid, of 1-cyano-1-carboxy-cyclobutane or cyclopropane, and of cyanoacetic, g -cyanobutyric and a -methyl-g -cyanobutyric acids. Formic esters specified are the ethyl and methyl esters, and these may be used also as diluents.  Other diluents specified are paraffins, methanol, ethanol, or dioxane.  Raney nickel or cobalt are suitable hydrogenation catalysts, and hydrogenation is preferably carried out at 60-100 DEG  or 120 DEG  C. under a hydrogen pressure of 2-3000 lbs. per square inch.  The hydrolysis to the aminoacid may be carried out by boiling with baryta water or other mild alkali. The products may be used for producing polyamides according to Specification 601,123, [Group IV (a)].  An example describes the hydrogenation of the ethyl ester of dimethylcyanacetic acid in presence of ethyl formate to give a a -dimethyl-b -formyl-aminopropionic acid ethyl ester, which is hydrolysed to aminopivalic acid.  The Provisional Specification also describes the preparation of aminopivalic acid by hydrolysis of aminopivalonitrile, isocyanopivalonitrile, an N-carbalkoxyaminopivalonitrile, or an acidylaminopivalonitrile.  Other preparations described in the Provisional Specification are:-  Amino- and acidylamino-pivalonitriles are prepared from a metal cyanide and b -chlor-isobutylamine, or an acidyl derivative thereof.  b -Chlor-iso-butylamine is prepared from b -amino-tert.-butanol by reaction with hydrogen chloride or bromide.  b -Amino-tert.-butanol is prepared by reaction of isobutylene oxide with ammonia or reduction of acetone cyanhydrin.  Dimethylcyanacetic esters are prepared by reaction of alkyl carbonates with isobutyronitrile. Dimethylcyanacetic acid is prepared by reacting an a -halogenisobutyric acid with a metal cyanide.  a -Halogenisobutyric acids are prepared by hydrolysis of the halogen nitrile, e.g. a -chlorisobutyronitrile.  a -Chlorisobutyronitrile is prepared by reaction of acetone cyanhydrin with thionyl chloride.  b -Chlor-a -acidylamino-isobutane is prepared by acidylation of b -amino-tert.-butanol, followed by reaction with thionyl chloride.
Patent GB-1020195-A (GB)
Title: Thread rolling machines
IPC: B21H9/02
Filed: 1964-08-21
Abstract: 1,020,195. Thread rolling machines. HARTFORD SPECIAL MACHINERY CO. Aug. 21, 1964 [June 26, 1964], No. 34295/64. Heading B3M. In a thread rolling machine screw blanks 13 are fed between rails 27, 28 and are positioned on the stationary die 20 by means of a gate or finger 25 moving in timed relationship with the movable die 16. To speed up the operation of the machine an air jet 40 is directed on the blanks 13 in such a way as to direct the major portion of the air stream along the direction of feed. The feed rails 27, 28 are inclined to feed the blanks by gravity and the horizontal component of the air jet ensures proper seating of the transferred blank against the movable die. The blanks are fed to the feed rails 27, 28 from a rotary drum which includes an inclined plate 61 down which the blanks slide to the rails (Fig. 3, not shown). As only a proportion of the blanks will be properly orientated with their shanks between the rails, two air jets 70, 71 at the exit aperture of the drum remove the improperly orientated blanks and return them to the drum to prevent a jam.
Patent GB-859001-A (GB)
Title: Improvements in or relating to potentiometers and variable resistors
Inventor: THOMAS GWILYM IVOR
IPC: H01C10/32
Filed: 1959-10-09
Abstract: 859,001. Variable resistors. A. B. METAL PRODUCTS Ltd. Oct. 9, 1959, No. 34350/59. Class 37 A potentiometer or variable resistor comprises a carrier member 1 for the wiper 10, the member being provided with resilient jaws 3 through which the suitably shaped end of a shaft 2 may be pushed to secure the shaft to the carrier member. As shown in Fig. 2, the carrier member 1 is provided with a rectangular slot 7 through which the flattened end of the shaft 2 passes so that any rotation of the shaft is imparted to the carrier member. The wiper 10 is provided with sliding spring contacts 11 and is attached to the carrier by lugs 12. The carrier member 1 is further provided with a stop 8 and a switch actuating member 9.
Patent GB-1243438-A (GB)
Title: An improved exhaust silencer for internal combustion engines
Inventor: CONLIN PATRICK JOSEPH
IPC: F01N1/08
Filed: 1969-07-08
Abstract: 1,243,438. Exhaust silencers. P. J. CONLIN. July 8, 1969 [July 19, 1968], No.34392/69. Heading F1B. In an exhaust silencer comprising tangential inlet 6, Fig. 2, and outlet 7 on opposite sides of partition means 8, the latter and two portions 1 of the silencer casing are joined at their peripheries. The joint may comprise a single welded or brazed seam as shown at 15. Alternatively, it may be formed by spinning or rolling the peripheral edge of one of the casing portions 1 over the peripheral edges of the partition means and the other casing portion, Figs. 5, 7 and 11 (not shown), or the joint may be effected by a clamping band (30), Figs.12 and 13 (not shown), which permits relative angular adjustment between the casing portions 1. The partition means 8 may be tack-welded or brazed to a perforated tube 12 through which the exhaust gases pass from the inlet to the outlet. Alternatively, the tube 12 may be omitted, the means 8 then being extended axially to positions adjacent the end-walls of the silencer casing, Fig. 7 (not shown). The partition means may comprise a single funnel-shaped member arranged with its small end extending into the discharge portion of the silencer casing, Fig.15. (not shown). A circular mesh screen, or a circular mesh filter enclosing a catalyst, may be secured at its periphery by the joint.
Patent GB-640685-A (GB)
Title: Improvements in or relating to devices for shifting two superposed wrapping members in an automatic folder
IPC: B65H5/14
Filed: 1947-12-29
Abstract: 640,685. Feeding webs. SAPAL SOC. ANON. DES PLIEUSES AUTOMATIQUES. Dec. 29, 1947, No. 34395. Convention date. March 22, 1946. [Class 100 (i)] A device for shifting two superposed wrapping strips in an automatic folder wherein the strips are cut simultaneously into superposed sections comprises a mobile shifting gripper whose jaws execute a relative sliding motion while gripping the strips so as to make one strip overlap the other for a certain distance. The jaw 3 is secured to an arm 10 pivoted at 11 to a carriage 1 sliding in a slipper-guide 2, and is opened at predetermined times by a camactuated member 8 acting on a roller 9 and closed by spring action. The jaw 4 is secured to an arm 12 attached at 15 to an arm 16 pivoted at 17 to the carriage and having a stud 13 sliding in an arcuate guide 14 on the carriage. At predetermined times, the jaw 4 is reciprocated horizontally relative to the jaw 3 by means of a cam-actuated member 19 acting on a roller 18 and a return spring 20, the guide 14 being arranged to maintain the clamping pressure constant meanwhile. In operation, the ends of two wrapping strips are gripped and drawn to the right, the jaw 4 moving also to the right relatively to the jaw 3 so as to draw forward a greater length of the upper strip, both strips then being severed. On further movement of the gripper to the right, the upper jaw moves relatively leftward, to centre the strips over the object to be wrapped. The jaws then open and move further to the right to be detached from the severed strips, and the gripper returns to its initial position while the upper jaw again moves relatively leftward into alignment with the lower jaw. The first relative leftward movement of the upper jaw may be half the first such rightward movement or less, or may not take place.
Patent GB-367778-A (GB)
Title: Improvements in or relating to the priming or coating of timber with creosote, paint, fireproofing or other liquids
IPC: B27K3/02
Filed: 1930-11-17
Abstract: <PICT:0367778/III/1> <PICT:0367778/III/2> <PICT:0367778/III/3> Timber lengths 18 to be coated or primed are fed by a pair of rollers 19, 19a, one of which is carried by means transversely adjustable for different thickness of timber, into a spraying chamber to a position above a supply tank 10 containing the cresote, paint, fireproofing or other treatment liquid, where they are sprayed on all sides with the liquid from jets or nozzles 28 . . 31, the lengths being withdrawn between another pair of rollers 20, 20a, excess liquid being returned to the tank through a sieve 12.  The apparatus may be transportably supported on a chassis 31 carried by wheels 11 and includes an air compressor 16 driven by an electric motor 14 and supplying a container 15 from which compressed air is fed through a control valve 55 and conduits 32, 33, 34, each of which has a control valve, to the nozzles 28 . . 31.  Liquid is drawn by suction from tank 10 to the nozzles through a pipe 36 and a valve 35, the excess liquid dripping from the timber being caught by an inclined tray 47 and returned through the sieve 12, which is detachable, to the tank. The timber lengths 18 are supported on guide rollers 53 and are conveyed through the apparatus which has a cover provided with adjustable entry and exit doors for the timber by the two pairs of feed rollers of which the rollers 19, 20 are carried on transversely adjustable supports 48, 50 and press the lengths against the rollers 19a, 20a which are driven from the motor 14 through a variable speed friction gear 21, 22, a vertical shaft 23, chain wheel 24, chain 25, chain wheel 26 and chain 27.  In one form, Fig. 4, the spray means have each a pipe 37 which supplies compressed air to a chamber 38 from which it passes through a bore 39 in a spindle 39a under control of a valve 40 to a chamber 42 supplied with liquid by a pipe 41.  The liquid and air leave through a conduit 43, having a bell mouth end 44, in an externally threaded spindle which screws to and from the bore 39 to adjust the liquid supply.  The spray means has a hole 46 and clamp screw 45 by which it can be fixed in any desired position on a support. The Provisional Specification describes apparatus in which the timber lengths are at predetermined times during spraying moved transversely in addition to the longitudinal movement.
Patent GB-1476985-A (GB)
Title: Hydraulic system including a priority control valve
IPC: B66F9/22
Filed: 1974-08-06
Abstract: 1476985 Vehicle hydraulic systems PARKER HANNIFIN CORP 6 Aug 1974 [10 Sept 1973] 34574/74 Heading B7H The hydraulic system of a fork-lift truck comprises a priority control valve for dividing the flow from a variable-displacement pump 10 between a priority hydraulic circuit including a power steering control valve 5 and an auxiliary hydraulic circuit 8 including lift and tilt control valves, the priority control valve comprising a spring-biased valve spool 18 movable in a bore 11 intersected by an inlet passage 9 connected to the pump 10, by a priority circuit supply passage 3, and by an auxiliary circuit supply passage 7, the spool 18 having a land 21 acting to restrict flow from the inlet passage 9 to the priority circuit supply passage 3 when the spool is moved in one axial direction and to restrict flow to the auxiliary circuit supply passage 7 when the spool is moved in the opposite axial direction, the spool having its ends respectively exposed to pressures in passages 15, 12 communicating with respective positions upstream and downstream of a variable-area orifice of the steering control valve 5, the passage 12 communicating with a controller of the pump 10 by way of a check valve 17.
Patent GB-1082842-A (GB)
Title: Improvements in or relating to a process for producing substituted ureas
Inventor: BUNTIN GEORGE ALLEN
Filed: 1964-08-24
Abstract: In a patent of addition to Specification 1,016,659 substituted urea compounds of the general formula <FORM:1082842/C2/1> wherein the urea group is attached to the 5 or 6 carbon atom of the ring system and (a) R, R1 and R2 which can be the same or different are each hydrogen, Cl, Br, a C1-C4 alkyl group or a chloromethyl group or (b) R and R1 when taken together represent a single bond (-), -CH2CH=CH- or -CH2CHCl-CHCl- and R2 is a hydrogen, and wherein R3 and R4 which may be the same or different are C1-C8 alkyl groups are prepared by reacting the corresponding thiourea with phosgene in a water-free organic medium at 0 DEG  to 80 DEG  C. and then with water in the absence of an acid acceptor at 0 DEG  to 100 DEG  C.  Any unsaturated carbon to carbon double bonds may be removed by subsequent hydrogenation with hydrogen.  Reference has been directed by the Comptroller to Specification 890,540.
Patent GB-358773-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/18
Filed: 1930-11-18
Abstract: 358,773. Sharpening razors. LAIRD, A. J., 49, Otago Street, Glasgow. Nov. 18, 1930, Nos. 34669/30 and 6318/31. Drawings to Specification. [Class 60.] A wafer blade for a safety razor is given its final honing whilst in a longitudinally tensioned condition, the tension serving to keep the thin edge taut and hold it more firmly against the stone.
Patent GB-1149216-A (GB)
Title: Internal rear view mirror
IPC: B60R1/04
Filed: 1966-08-04
Abstract: 1,149,216. Moulding mirror supports. GEBR. HAPPICH G.m.b.H. 4 Aug., 1966 [9 Nov., 1965 ; 9 Feb., 1966 (2)], No. 34955/66. Heading B5A. [Also in Division B7] A rear view mirror pane 9 and frame 2 complete with ball 7 and stem 8 is positioned as shown on a foamed plastics or foamed rubber cushion 22 in the base portion 118 of a metal or hard plastics mould. In the unloaded state, Fig. 7 (not shown), the cushion 22 protrudes above the wall 120, so that even when the mould is closed under pressure the pane 9 does not contact the top of the wall 120. The tolerance of the pane 9 may alternatively be compensated for by a resilient interlayer between the mould top 15 and the mirror frame 2. The mould is filled with a metered quantity of foamable liquid and the liquid is cured to provide a cushion body (112), Fig. 4 (not shown), around the frame 2 and an abrasion resisting skin (113).
Patent GB-1430584-A (GB)
Title: Unit for pumping cold emulsions of  bitumen and water and like  emulsions
IPC: F04C11/00
Filed: 1972-07-27
Abstract: 1430584 Rotary positive-displacement fluid-machines THOMAS COLEMAN & SONS Ltd 25 July 1973 [27 July 1972] 35106/72 Heading F1F A unit for pumping a cold emulsion of bitumen and water, or similar emulsion, comprises a pump 4 with a single flexible-vane rotor producing a combination of centrifugal and positivedisplacement pumping effects and driven by a prime mover e.g. an I.C. engine, 3 through a clutch, which may be in the form of a V-belt or rope (not shown) tensioned by a jockey pulley connected to a hand lever 5. A filter 6 may be provided on the intake side of the pump and a hose with a spraying lance may be connected to an outlet 8 having a cock or valve 9. In a second embodiment, Fig. 2 (not shown), the unit is mounted on a towable wheeled frame supporting a storage drum (14) for the emulsion. Alternatively the pump rotor may be coupled to the prime mover by a chain, or gearing, and a clutch of e.g. the friction or magnetic type.
Patent GB-291698-A (GB)
Title: An improved wrench for nuts, screwing taps, drills or the like
IPC: B25B13/46
Filed: 1927-12-29
Abstract: 291,698. Szabo, L., and Machatß, CDec. 29, 1927. Ratchet braces.-A ratchet brace for use in tightening and un-tightening nuts and rotating drills, taps &c. comprises a casing 6 in which rotates a sleeve 7 apertured to receive the tool &c. A handle 1, having an eccentric surface on the end 2, is eccentrically pivoted by a pin 3 in a hollow projection 4 of the casing so that oscillation in one direction about the pin 3 rotates the sleeve 7 and oscillation in the other direction disengages the handle from the sleeve. The pin 3 is displaced from the centre line of the handle and casing and carries a finger 9 which engages a groove 10, Fig. 5, in the sleeve and serves, together with a flange 8, to retain the sleeve in the casing. An inclined slot 11 in the sleeve allows the finger to be disengaged for changing the sleeve, and the brace may be inverted for rotating the tool &c. in the opposite direction.
Patent GB-1532932-A (GB)
Title: Mixing device
IPC: E04F21/12
Filed: 1977-08-23
Abstract: The spraying machine has a filling hopper (6), through the filling opening of which the material passes into a bucket wheel (11) which revolves by means of a vertical shaft which is offset laterally with respect to the axis of the filling hopper to such an extent that the upper side of said wheel and the hopper base (6.1) only overlap in the region of the filling opening. The housing of said wheel is sealed only in the region of a blow-in connection stub (4) for the compressed air and a blow-out connection stub for the material. Said compressed-air spraying machine is equipped with a device for supplying pulverulent additives, which permits a selectable admixture ratio with respect to the material. In the case of said device, upstream of the inlet of the bucket wheel (11) beneath the hopper base (6.1), the housing upper side is open in the bucket region and, thereabove, there is arranged a container (20) for the pulverulent additives, having a metering device which is driven intermittently by the bucket wheel (11) such that, whenever a bucket (11.1) passes beneath the outlet opening of the metering device, the latter dispenses a predetermined quantity and the additives pass directly into the buckets of the bucket wheel. <IMAGE>
Patent GB-465400-A (GB)
Title: Improvements in and relating to apparatus for rewinding strips or bands, more especially for cinematographic films
IPC: G03B21/43
Filed: 1936-12-28
Abstract: 465,400. Rewinders for kinematograph films &c. SIEMENS & HALSKE AKT.-GES. Dec. 28, 1936, No. 35533. Convention date, Jan. 3. [Class 97 (i)] In rewinders for kinematograph films &c. comprising two spool carriers 4 pivoted on a base 1 so that they may occupy the positions shown in full lines during use and those shown in dotted lines when out of use, the carriers, are secured in each position by the same screwas shown the screw 10 is threaded at each end and is turned by a milled disc 12 housed in a recess 11. The ends of the screw alternatively engage tapped holes in projections 8, 9. Crank arms 6, 7, respectively connected directly, and through gearing to the spool ,spindles, may engage recesses 13, 14 when the carriers are held out of use.
Patent GB-1008586-A (GB)
Title: Improvements in or relating to glass
IPC: C03C3/32
Filed: 1962-09-19
Abstract: For glasses transmitting infra-red rays and having refractive indices between 1.35 and 2.53 in the spectral range between 2 and 10 m , arsenic-sulphur-halogen systems are used, the examples in percentages by weight having arsenic in the range 20-60; sulphur 30-70 with iodine alone 10-40; bromine alone 10; or chlorine alone 2 or with a mixture of halogens, I, Br and Cl either 1 or 5 each.  Melting of the glasses is effected in quartz vessels in a protective atmosphere of inert gas, either N2 or rare gases such as He.  Reference has been directed by the Comptroller to Specification 913,791.
Patent GB-838503-A (GB)
Title: Process for refining steel
IPC: C21C5/04
Filed: 1956-11-22
Abstract: A modification of the process claimed in the parent Specification comprises lowering the oxygen content of the liquid steel, the slag, and the furnace atmosphere, during superheating of the slag, to below the theoretical amount necessary for the combustion of the fuel and oxidation of the carbon present in the molten bath.  The amount of oxygen supplied to the burner is reduced to below that necessary for the complete combustion of the fuel and deoxidizing reagents which for gaseous products, e.g. pig iron or speigeleisen, with or without Si, Al or Ca, or alloys thereof, are added to the bath, e.g. in the form of briquettes or in containers which may also contain a thermite charge.  When the reduction is complete alloying elements, e.g. Cr, V, Mo, W, may be added before tapping.  Further small amounts of the same reducing agents may be added to the ladle during tapping.