baber/WOPTO huggingface dataset:
Patent GB-331788-A (GB)
Title: Printing press with stationary cylinder and front sheet delivery
IPC: B41F21/04
Filed: 1929-10-31
Abstract: 331,788. Maschinenfabrik Augsburg- N³rnberg Akt.-Ges. Nov. 1, 1928, [Convention date]. Delivery apparatus.-In sheet-delivery mechanism for cylinder printing-machines in which oscillating grippers take the sheet from the impression cylinder 1 and deposit it upon a flexible support 5 of the roller-blind type, the bar 6 to which the free end of the support 5 is fixed is carried by a pivoted arm 9 so that when the machine is stopped the support can be moved to the position 9<1> in order to facilitate access to the impression cylinder. A spring 12 holds the arm 9 in either extreme position. Before the arm 9 can be moved, it is necessary to move the feed-table 10 out of the way in the usual manner. The spring-roller 7 also is moved away from the cylinder into the position 7<1> by turning the flywheel of the machine.
Patent GB-172654-A (GB)
Title: Improvements in traction engines
IPC: B62D53/02
Filed: 1921-12-10
Abstract: 172,654. Fritz, D. Dec. 10, 1920, [Convention date]. Controlling by reins; controlling different functions by same handle or lever.-Comprises a traction engine in which each driving wheel is driven through belt gearing controlled by reins so that the wheels can be driven together or separately for steering. The power unit comprises an engine, gearing, and two driving and steering wheels, and is connected by a pivoted pole or frame k to a third supporting wheel m or a vehicle being towed. The engine is mounted coaxially with the driving wheels which it drives through two sets of belt gearing d', d<2> and toothed gearing f<1>, g<1>. The belts are tensioned by jockey pulleys carried by levers h<1> connected together by a balancing spring e and controlled separately or together by reins q<1>, q<2>. The reins pass to the driver's seat n or to a vehicle being towed, and an auxiliary part passes round a pulley on a hand lever p. Thus, when the lever p is operated both belts are controlled either to drive or free the road wheels, while if one rein is pulled the belt on that side only is released and the vehicle is steered. Brake blocks i<1> are carried by levers connected to the belt levers h<1>, so that these brakes are controlled by the lever p and by the reins, and the vehicle may be steered by braking either side. The lever p may be connected by a rod u to the engine throttle. Stops s<1>, s<2> on the reins prevent the reins from being moved too far in either direction.
Patent GB-301496-A (GB)
Title: Improvements relating to the crystallization of substances that crystallize exothermically
IPC: B01D9/00
Filed: 1928-11-13
Abstract: 301,496. Appareils et Evaporateurs Kestner. Dec. 2, 1927, [Convention date]. Crystallizing. - Substances which crystallize exothermically, e.g. ammonium nitrate, are crystallized by agitating strongly their hot saturated solutions while exposed to a current of air sufficient to carry off the moisture released by the evaporation of the crystals. Concentrated ammonium nitrate solution is pumped from a continuous evaporator 3 into pans 1 provided with agitators 2 and subjected to a current of air from a series of blast pipes 4.
Patent GB-829020-A (GB)
Title: Improvements in or relating to high vacuum condensation pumps
IPC: F04F9/00
Filed: 1956-10-31
Abstract: 829,020. High vacuum diffusion pumps. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 31, 1956 [Nov. 3, 1955], No. 33238/56. Class 71. The condensation chamber 7 of a high vacuum diffusion pump is insulated from the boiler 1 beneath by an evacuated chamber 13 surrounding the vapour chimney 2. As shown the chamber 13 is connected by a duct 14 to the suction inlet 9 of the pump. Condensed vapour e.g., mercury is returned through a duct 11 to the boiler 1.
Patent GB-1106257-A (GB)
Title: An improvement in or relating to compression testing gauges
Inventor: WALTERS DEREK JOHN
IPC: G01L19/08
Filed: 1965-08-04
Abstract: 1,106,257. Piston and spring pressure gauges. WALTERS & DOBSON Ltd. June 8, 1966 [Aug. 4, 1965], No. 33338/65. Heading G1L. A piston and spring gauge for testing the compression of an internal combustion engine has a one way valve 26 to intermittently admit gas to a cylinder 10 containing the spring-loaded piston 20 and scale 24 until the gas pressure within the cylinder 10 is the same as the maximum pressure to be measured. The gauge may also be used as a tyre pressure gauge.
Patent GB-654618-A (GB)
Title: Improvements in or relating to electric pulse modulation circuit arrangements
IPC: H03K7/02
Filed: 1948-12-29
Abstract: 654,618. Multiplex pulse signalling. SADIRCARPENTIER. Dec. 29, 1948, No. 33441. Convention date, Dec. 26, 1947. [Class 40 (v)]  In a pulse amplitude modulator in which unmodulated pulses and a modulating signal voltage are applied to different grids of a valve, a linearizing feedback is provided between the output and the signal grid. In the embodiment described, a train of unmodulated positive pulses from source 2 is applied to the inner control grid of hexode valve 1, the grid being biassed beyond anode current cut-off between the pulses by the grid-current biassing circuit 3, 4. The modulating signal from source 5 is applied to the outer control grid 6 and the modulation characteristic is linearized by negative feed-back from the anode to grid 6 through condenser 8. In order that, in a multiplex system, several similar modulators, fed with time-displaced pulses and different channel signals, may use a common anode resistance 10, a diode 13 is connected between resistance 10 and the anode to prevent crosstalk between the channels.
Patent GB-1371774-A (GB)
Title: Rotor system having viscoelastic lead-lag damper
IPC: B64C27/51
Filed: 1971-08-16
Abstract: 1371774 Helicopter rotors LORD CORP 16 Aug 1971 [26 Oct 1970 13 May 1971] 33448/71 Heading B7W A helicopter rotor, having a blade 14 connected to a hub 16 by a member 34, includes a lead-lag damper 12 disposed adjacent and apart from the member 34 and having spaced plates separated by viscoelastic material and connected to the blade and the hub respectively, so that the material is deformed in shear upon lead-lag movement of the blade. An elongated metal plate 52, having a collar 53 for pivotal attachment to the blade, is embedded in a body 50 of elastomeric material and bonded thereto, while plates 56, having bushing members 66 whereby they may be connected to hinge member 34 are bonded to opposite sides of the body 50. The material is pre-compressed between the plates 56 by tightening bolts 70; spools 76 on the bolts limit both the amount of such compression and the amount of relative movement between the plate 52 and the plates 56. In an alternative damper, Fig. 7, outer plates 85, 86 are bolted to a central plate 82 and may be secured to the rotor blade by pivotal connections means (88), Figs. 5, 6 (not shown), while inner plates 83, 84 are bolted together and secured by means (90) to the member 34, four pieces of elastomeric material 81 being sandwiched between the five plates and bonded thereto. The plates 83, 84 have outwardly facing concave surfaces and the plates 85, 86 complementary convex surfaces for preventing relative transverse movement of the plates. The elastomeric material may be pre-compressed by tightening bolts 94, which connects protruding tabs 82a, 85a and 86a on the plates 82, 85 and 86 to the limits of spacer spools 93. The elastomeric material is preferably silicone rubber, but other examples are given. A damper per se is claimed in Specification 1,371,775 (see Division F2). Reference has been directed by the Comptroller to Specification 1,333,246.
Patent GB-1119942-A (GB)
Title: Improved apparatus and method for lashing and placing aerial telephone cable on a supporting strand
IPC: H02G1/04
Filed: 1965-08-05
Abstract: 1,119,942. Stringing overhead cables. TELSTA CORP. 5 Aug., 1965 [20 Aug., 1964], No. 33534/65. Heading H2C. An electric cable 71 is drawn from a braked drum 54, which determines its tension, and a supporting strand 72, with which the cable 71 is to be strung, is drawn from drum 41 and passes over pulleys, one of which is braked to tension it, before cable 71 and strand 72 pass together through lasher 66 and arcuate guide 101. Cable 71 and strand 72 are capable of relative movement as they enter guide 101, but before they leave it lashing wires 91 are tightened to prevent movement. The tension in strand 72 is greater than that in cable 71, so it lies on the inside of arcuate guide 101 and cable 71 on the outside and the length of cable lashed to the strand exceeds that of the strand. When the cable 71 and strand 72 leave guide 101 and are straightened strand 72 is still under tension, but cable 71 is slack or in compression. The upper part 103 of guide 101 can rotate relative to its lower part 102, so as to guide the lashed cable and supporting strand. In an alternative arrangement (Fig. 4, not shown), the lasher 66 may be positioned at the outlet from guide 101 and cable 71 is not placed in compression.
Patent GB-1108848-A (GB)
Title: Organosilicon compounds
IPC: C07F7/08
Filed: 1966-07-26
Abstract: Novel trialkylsilyl-b -phenylethylamine compounds having the formula <FORM:1108848/C3/1> wherein R1, R2 and R3 are alkyl, R4 is hydrogen, hydroxyl or alkyl, R5 is hydrogen, hydroxymethyl, carboxyl or alkyl, R6 and R7 are hydrogen or alkyl and when R6 is hydrogen then R7 may also be acyl or haloacyl, are prepared from intermediates of formula <FORM:1108848/C3/2> where n is 0 or 1, X is chlorine, carboxyl, nitrile or hydroxyl and R8 is hydrogen, alkyl or acyl. In examples preparations described are of b  - (trimethylsilylphenyl)ethylamine from trimethylsilylbenzyl cyanide and lithium aluminium hydride; b -(trimethylsilylphenyl)ethyldimethylamine from b -(trimethylsilylphenyl)-ethyl chloride and dimethylamine; b -(trimethylsilylphenyl)-propylamine from a -(trimethylsilylphenyl)propionitrile and lithium aluminium hydride; 1-(trimethylsilylphenyl)-2-aminopropane by reacting trimethylsilylbenzyl cyanide with magnesium, then with methylcyanide and reducing with lithium aluminium hydride; b -(trimethylsilylphenyl) -serine from trimethylsilylbenzaldehyde and glycine; 1-(trimethylsilylphenyl)-2-aminopropane-1,3-diol from b -(trimethylsilylphenyl)serine and lithium aluminium hydride; 1 - (trimethylsilylphenyl) - 2 - dichloroacetamido propane-1,3-diol from the -2-aminopropane-1,3-diol and methyl dichloracetate. Intermediates, other than those used as starting materials above, which are prepared are trimethylsilylphenyl acetic acid, b -(trimethylsilylphenyl) ethyl alcohol, trimethylsilylbenzyl chloride and 1-cyano-1-(trimethylsilyl)-phenyl acetone.  The methods of preparing the intermediates are described.
Patent GB-742697-A (GB)
Title: Improvements in or relating to amusement rides
IPC: A63G19/20
Filed: 1953-12-03
Abstract: 742,697. Amusement and exercising apparatus. HALL, E. Oct. 11, 1954 [Dec. 3, 1953], No. 33688/53. Class 132(1) Apparatus for rocking the seat of. an amusement ride comprises a first link 16 that is connected to the seat, to a crank 14 or eccentric rotated by a prime mover 13 and to a fulcrummed beam 19 remote from the fulcrum 22 and a second link 25 that is pivoted to the seat, away from its connection with the first link 16, and to the beam 19 away from the fulcrum 22 on the opposite side from the first link, the links, seat and beam forming the sides of a quadrilateral with the seat wholly above or wholly below the beam. An effigy 10 of a horse with a saddle 11 is pivoted at 18 and 27 to sockets 17 and 26 within which are held the upper ends of links, 16, 25. The lower end of link 25 is held in a socket 24 pivoted to beam 19 which is fulcrummed at 22 between plates 20. The lower end of link 16 is held in a sleeve pivoted to the end of crank 14 mounted on the shaft of the electric motor 13 and, near its lower end, link 16 passes through and is secured to a sleeve 23 pivoted to beam 19. The latter pivot extends at one side to engage spring device 35 which assists link 16 in lifting the front of the effigy. A pivoted spring biased lever 28 is arranged to close switch 33 when bar 29 is pulled. Switch 33 makes or breaks the circuit of a solenoid-operated relay which is connected to energize the motor 13. A coin freed time switch 36 is fitted in series with the current supply of motor 13. The motor and beam 19 are enclosed in a casing 12, as shown, which has two wheels 37 which may be lowered to allow the amusement ride to be wheeled about.
Patent GB-738369-A (GB)
Title: Improvements in or relating to the purification of chlortetracycline
Filed: 1951-01-26
Abstract: Substantially pure neutral chlortetracycline is prepared by dissolving chlortetracycline-containing material in one or more polar organic solvents at a pH of 5 to 7.5, the pH being adjusted if necessary to within said range by the addition of acid or base, separating any insoluble material therefrom, and then adding water thereto in an amount sufficient to precitate the neutral chlortetracycline.  The solution of chlortetracycline-containing material may be treated with a decolorizing agent such as carbon. Specified solvents are alcohols of up to 5 carbon atoms, e.g. methyl alcohol and ethyl alcohol, alkoxyalkanols of not more than 4 carbon atoms, e.g. 2-methoxyethanol-2-ethoxyethanol, ethylene chlorhydrin, dioxane, diethylene glycol ethyl ether, ethylene glycol, benzyl alcohol, nitromethane, acetonitrile, propylene chlorhydrin, di-acetone alcohol, 2-methoxy-ethyl acetate and mixtures of two or more of these solvents.  pH adjustment is by acids such as hydrochloric or bases such as alkali metal hydroxides, e.g. sodium hydroxide and especially nitrogenous bases having a dissociation constant of at least 10-7, e.g. ammonia, trimethylamine, di- and tri-ethylamines, mono-di- and tri-ethanolamines, di-n-propylamine, isoamylamine, isobutylamine, tri-n-hexamine, morpholine, ethyl morpholine, mono- and di-cyclohexylamine, beta phenylethylamine, dimethylbenzylamine, 2-aminopyridine, betadiethylaminoethanol and mixtures thereof.
Patent GB-301650-A (GB)
Title: Improvements in brick making machines
IPC: B28B13/02
Filed: 1927-12-14
Abstract: 301,650. Whittaker &. Co., Ltd., C., and Whittaker, N. Dec. 14, 1927. Feeding.-In a semi-plastic brick machine, the feed hopper or shoot is formed with one or more inclined sides so as to widen downwardly and at the bottom is arranged an approximately horizontal screw or other conveyer which delivers the material to a box arranged above the reciprocating slide carrying the feed carriage. As shown, the hopper C is formed with an inclined side c and the material is delivered therefrom bv a. horizontal screw conveyer D to a box D<1> disposed above the reciprocating feed carriage A which transfers material to a mould B. The screw D is preferably of short length and is driven through variable-speed gear E.
Patent GB-928721-A (GB)
Title: Improvements in the manufacture of silicon diodes
Inventor: WILLIAMS ALAN
IPC: H01J9/40
Filed: 1960-10-03
Abstract: 928,721. Silicon diodes. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 7, 1961 [Oct. 3, 1960], No. 33798/60. Class 37. [Also in Group XXII] In a silicon diode comprising a silicon wafer 3 secured to an electrically conducting base 1, a tubular metal shield 4 secured to the base around the wafer, a seal 5 of insulating material within the outer end of the shield, a metal sleeve 6 secured within a hole in the seal and a wire 7 extending through the sleeve and secured at its inner end to the wafer, a seal is formed between the wire and sleeve by placing a ring 8 of brazing metal around the wire adjacent the outer end of the sleeve whilst the diode is in a non-oxidising atmosphere which fills the chamber about the wafer and fusing the ring to trap the atmosphere within the chamber. The base is of copper, the shield of steel, the seal of glass, the sleeve of nickel alloy and the wire of goldplated copper. The parts are placed in a box containing 90% nitrogen, 10% hydrogen and a ring of silver-copper eutectic mixture is placed on the wire and fused by current passed between electrodes 9 in contact with the sleeve.
Patent GB-502581-A (GB)
Title: Improvements relating to carriers for electric fuses
IPC: H01H85/20
Filed: 1937-12-07
Abstract: 502,581. Electric cut-outs. BRITISH INSULATED CABLES, Ltd., and BLADES, R. W. Dec. 7, 1937, No. 33868. [Class 38 (i)] A fuse carrier is in the form of a box open on the underside to receive a cartridge fuse 1 held in position by brackets 12 which are detachably fixed to the carrier ends by screws 13 and project inwards. Each bracket 12 consists of a strip of metal folded to form a loop 16, Fig. 4, adapted to lie between the limbs of a clip 5 embracing an end cap 2 of the cartridge. The screw 7 used to lighten the clip passes freely through the loop 16.
Patent GB-1145431-A (GB)
Title: Aromatic diamines
Inventor: CROSS JAMES MARTIN
IPC: C07C/
Filed: 1966-07-29
Abstract: 1,145,431. Aromatic diamines. MOBAY CHEMICAL CO. 29 July, 1966 [29 July, 1965], No. 34120/66. Heading C2C. o-Aromatic diamines are removed from an isomeric mixture of aromatic diamines containing o-diamines by reacting the mixture at elevated temperature with urea and separating the remaining aromatic diamines from the reaction mixture. Preferably, the urea is used in an amount stoichiometrically equivalent to the amount of o-diamine present. The odiamines react with the urea to give high melting benzimidazolinones which may be separated easily from the remaining diamines. The process is exemplified by the treatment of a mixture of isomeric toluylene diamines.
Patent GB-341622-A (GB)
IPC: F22D1/28
Abstract: 341,622. Injectors. GRESHAM, H. E. and GRESHAM, J. N., Ordsall Lane, Salford, Manchester. Nov. 16, 1929, No. 35113. [Class 71.] The temperature of feedwater delivered by pumps, injectors &c. to boilers is raised by causing it to pass through a heater of injector form in which it is mixed with superheated or saturated steam the supply of which is controlled by the feedwater pressure. The combined injector and feed superheater, Fig. 1, has a steam inlet a, a water inlet b, an overflow c, and an ejector delivery nozzle g. The injector steam nozzle d has a sliding part f to control the overflow. The delivery water passes to the nozzle h of the heater which has steam inlets i, j, a convergent-divergent delivery nozzle m and a non-return nozzle n. When the delivery pressure is adequate, the piston p is raised and heating-steam is supplied through the valve q, passage q<1>, and chamber r to the inlets i, j. In a modification, the injectors are in line and the delivery nozzle of the feed injector constitutes the water nozzle of the heater. The automatic, heating-steam, supply valve may be closed by a hand-operated stop. A drain trap is provided at the delivery end of the heater. In a third construction, the feed heater is a separate entity.
Patent GB-1049007-A (GB)
Title: Production of n-substituted phthalimidines
Inventor: BECKE FRIEDRICH
IPC: C07D209/46
Filed: 1965-08-11
Abstract: A process for the preparation of N-substituted phthalimidines comprises heating together an o-cyanobenzyl chloride or bromide (which may bear inert nuclear substituents such as halogen, cyano, alkyl, alkoxy, acyl or aryl), a primary amine and water.  The reaction is conducted either by refluxing the reagents, or by reaction under superatmospheric pressure in an autoclave above 50 DEG C.  Time of reaction is of the order of 15 hours.  Suitable primary amines may be saturated or unsaturated and have branched or straight chains; if the amine has three or more C atoms, it may bear inert substituents, e.g. halogen, CN or alkoxy. The product is obtained from the reaction mixture by solvent extraction, using an organic solvent immiscible with water, followed by washing with aqueous alkali followed by drying. The solvent is then removed by distillation.
Patent GB-435234-A (GB)
Title: Method of recovering compact metallic magnesium from magnesium dust and for extracting magnesium from magnesium dust by sublimation
IPC: C22B26/22
Filed: 1934-11-29
Abstract: Magnesium dust is wetted with hydrocarbon oils and the mixture is freed from hydrocarbons by heating preferably in an inert or reducing atmosphere; the metal is extracted from the residue by heating to about the boiling point of the metal until the particles unite in molten form, or by vaporization and condensation, or by mechanically rubbing the mass while heated above the melting point of magnesium. The mixture of dust and oil may be compressed before further treatment, and pieces of metal in the form of rods, sheets, or wire may be embedded therein.
Patent GB-921376-A (GB)
Title: A handle
Inventor: CONRAD CONRAD JOHN
IPC: G05G1/10
Filed: 1960-10-06
Abstract: 921,376. Toys. J. & L. RANDALL Ltd. Oct. 6, 1961 [Oct. 6, 1960], No. 34357/60. Class 132 (3). [Also in Group XXV] A handle for pull-along toys comprises two interfitting frictionally engaging hollow parts 1, 2. A cord passes through an aperture 3 in the part 2 and is knotted to lie on the hollow interior of the part. The part 1 has a flange 4, the lower edge of which slots on a shoulder 5 on the part 2.
Patent GB-1213988-A (GB)
Title: New disazo dyestuffs
Inventor: CRABTREE ALLEN
IPC: C09B62/09
Filed: 1967-07-26
Abstract: 1,213,988. Disazodyestuffs. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 July, 1968 [26 July, 1967], No. 34395/67. Heading C4P. The invention comprises reactive disazodyestuffs of general formula wherein B is a benzene or naphthalene radical containing at least one sulphonic acid group and either a nitro or a dichloro-s-triazinylamino group, and A is a benzene or naphthalene radical which contains at least one sulphonic acid group and a dichloro - s - triazinylamino group if B does not. Preferably A and B are phenyl radicals each containing one sulphonic acid group or naphthalene radicals each containing two sulphonic acid groups. They are prepared by (a) coupling a diazonium compound of an amine A-NH 2  with a coupling component of general formula or (b) reacting one mole of cyanuric chloride with one mole of a disazo dye of general formula wherein A 1  and B 1  are benzene or naphthalene radicals containing at least one sulphonic acid group and in which either B 1  contains an amino group or A 1  contains an amino group and B 1  a nitro group. The dyes may be stabilized by addition of alkali metal acid phosphates or dialkylaminoaryl sulphonic acids. The dyes give dark green and dark blue shades on cellulosic textile materials and may also give black shades.
Patent GB-773862-A (GB)
Title: New isonicotinylhydrazide derivative and process for its preparation
IPC: C07D213/81
Filed: 1955-12-01
Abstract: The invention comprises an isonicotinyl hydrazide derivative of the formula <FORM:0773862/IV(b)/1> and the manufacture of this compound either (1) by reacting isonicotinyl hydrazide with cinnamaldehyde bisulphite of the formula C6H5.-CH(SO3Na) . CH2 . CH(OH)SO3Na, preferably using substantially equimolecular proportions of the reactants at 40-100 DEG  C., or (2) by reacting 1 - isonicotinyl - 2 - cinnamylidene hydrazine with sodium bisulphite, suitably by heating the hydrazine derivative with an aqueous solution of the bisulphite. Examples are given.