baber/WOPTO huggingface dataset:
Patent GB-1312081-A (GB)
Title: Process for the production of aromatic amines
IPC: C07C209/18
Filed: 1970-05-26
Abstract: 1312081 Amination of phenols HALCON INTERNATIONAL Inc 26 May 1970 [27 May 1969] 25189/70 Heading C2C Aromatic amines are prepared by reacting a phenolic compound with ammonia in the liquid or vapour phase in the presence of a catalyst comprising alumina derived from a precipitated gel form having a surface area of at least 150 square metres per gram and having an alkali metal content, expressed as alkali metal oxide, of not more than 1% by weight. The molar ratio of ammonia to phenolic compound in the vapour phase may be between 3 : 1 and 100 : 1. The reaction pressure is from 15-1000 p.s.i.g. and the temperature is from 300-570 C.; when the temperature required to maintain catalyst activity reaches 570 C. the reaction is discontinued and the catalyst regenerated. Suitable phenolic compounds include phenols, cresols, dihydroxybenzenes, pyrogallol, 4,41-dihydroxydiphenyl, 4,4<SP>1</SP> - dihydroxydiphenylmethane or -propane, naphthols and naphthalene diols.
Patent GB-1013248-A (GB)
Title: Improvements in "tantalum-base alloy"
IPC: C22C27/02
Filed: 1964-06-18
Abstract: An alloy has the following composition, by weight: <TABS:1013248/C6-C7/1> the atomic ratio of Zr/Hf to C being between 0.2 and 2.  Examples of the alloy are homogenized at 2065  DEG C. for 1 hour in vacuum, worked and precipitation hardened at 1090  DEG C. for 1/2 hour in vacuum.
Patent GB-835076-A (GB)
Title: Electrolytic capacitors
Inventor: HILL RONALD ALFRED
IPC: H01G9/00
Filed: 1957-08-09
Abstract: 835,076. Electrolytic capacitors. STANDARD TELEPHONES & CABLES Ltd. Aug. 8, 1958 [Aug. 9, 1957], No. 25267/57. Drawings to Specification. Class 37. A solid electrolytic capacitance comprises an anode having an anodically formed dielectric film, a semi-conductive layer containing a mixture of manganese dioxide and thallic oxide, and an electrically conducting cathode coating upon such layer. The interstitial surfaces of the component particles of a sintered porous tantalum anode are anodized to provide a dielectric film of tantalum oxide, soaked in a solution of manganese nitrate of s.g. 1.5 containing 4.76 gm/ litre of thallous nitrate and fued to 450‹ C. to decompose the salts to manganese dioxide intimately mixed with 1.2% by weight of thallic oxide. The process may be repeated and thereafter the anode is immersed in a colloidal graphite solution, after which a metal cathode coating is applied thereto, and insulated cathode and anode leads are attached. The anode may be of tungsten, hafnium, niobium, titanium or zirconium, or aluminium as foil or wire. Specifications 730,160 and 747,051 are referred to.
Patent GB-205496-A (GB)
Title: Improvements in the mounting of wheels on the axles of vehicles
IPC: B62D7/18
Filed: 1923-10-11
Abstract: 205,496. Daniel, J. Oct. 11, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Deflectable axle-ends.-The steering-wheels are pivoted on pins a situated in the plane of the wheels. The pins a are fixed in the ends of the axle j and carry steel bushes b on which the members c pivot. The wheel-hubs i rotate on bearings e on the members c which are provided with arms g having ball-ends h for the coupling- rod (not shown). A steering arm f is fixed to one of the members c.
Patent GB-732071-A (GB)
Title: Improvements in or relating to float chambers for carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1952-10-09
Abstract: 732,071. Carburetters. SOC. DU CARBURATEUR ZENITH. Oct. 9, 1952 [Oct. 10, 1951], No. 25333/52. Class 7(3). In a carburetter float chamber the control of the fuel supply valve by the float includes an elastic blade of superpolyamidic material or other plastic material having similar resilient properties for resiliently transmitting the motion of the float to the valve the elastic blade operating by bending. In Fig. 1 the float is of superpolyamidic material or other plastic material having similar resilient properties and is in two moulded parts 15, 16 which are stuck together. A strip 18 forms an integral unit with the upper part 16 of the float and transmits the motion of the float to the fuel valve 9. The strip is elastic and oscillations of the float are not transmitted or are only transmitted in very damped condition to the valve. The strip should bend under very weak force. In a modification the strip 18 bears on the free end of a pivotted lever and an intermediate part of the lever operates the float chamber inlet valve. In Fig. 4 a strip 28 which operates the fuel valve 10 is integral with the float and is pivotted at 30 to the float chamber. The elastic strip 18 or 28 need not form an integral part of the float. It may consist of a loose piece suitably fixed to the float which latter can be either of plastic material or of metal or of cork or other suitable material. In Fig. 5 the float can be either of metal or of plastic material. A lever 33 is formed by an elastic blade of superpolyamidic material or other plastic material having similar resilient properties. Polyvinylic plastic materials may be employed for the spring. Preferably plastic materials with a superpolyamidic base either in the pure state or mixed with a plasticiser are used. Some of these materials are commonly known under the name nylon. It is stated that previously metallic helicoidal or leaf springs have been used between the float and the fuel valve. It is necessary to employ springs of very fine wire or very thin elastic leaves which are not slow in breaking.
Patent GB-253427-A (GB)
Abstract: 253,427. Mulder, J., and Endert, D. C. Nov. 27, 1925. Vacuum apparatus.-In a process for removing oil &c. residues from ship's tanks &.c. the residue is first sucked, up a pipe 2 by a steam ejector 1, it is then driven back into the tank by steam admitted to the upper end of the pipe 2, and is finally drawn up by the ejector, mixed with air and gases. The mixture may be discharged into a container 8 where the gases &c. pass off by a pipe 9 and the liquid remains. The liquid may be discharged into the atmosphere through the outlet 6 by passing it from the container 8 through a pipe 10 and an atomiser 24 into the pipe 2 where it mixes with the ascending gases drawn from the tank by the ejector. The flow of steam and liquid &c. is controlled by a rotatable valve 7, which in one position connects the ejector to the outlet 6, in another position closes. the outlet, so that steam passes from the ejector into the pipe 2, and in a third position, by means of a curved plate, directs the mixture into the container 8.
Patent GB-536217-A (GB)
Title: Improvements in or relating to time base circuits
IPC: H03K4/86
Filed: 1939-09-08
Abstract: 536,217. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd., SHANNON, D. S. B., and CHATTERJEA, P. K. Sept. 8, 1939, No. 25427. [Class 40 (v)] In a time base circuit in which a condenser C1 discharges through a gas valve V1, a high resistance R2 (or resistance chain) is connected in series with the charging impedance R1, the condenser C1 being connected across the whole or part of the resistance R2, the anode-cathode path of the valve being connected across a part of resistance R2, and the grid of the valve being connected to a point on R2 which is negative with respect to the cathode. The resistance chain R2 may include a diode V2, Fig. 2, a grid condenser C3 being arranged as shown. The time constant of C3 and its associated shunt impedances is an integral multiple of the. time constant of the generator, so that a small sawtooth voltage of multiple frequency occurs across the condenser C3. Specification 536,215 is referred to.
Patent GB-1397127-A (GB)
Title: Thermoplastics particles and method of producing granules therefrom
IPC: B29B9/00
Filed: 1972-05-31
Abstract: 1397127 Granulating UNION CARBIDE CORP 31 May 1972 [1 June 1971] 25532/72 Heading B5A [Also in Division C3] Thermoplastics particles suitable for cold compaction into granules, have a standard Geometric Deviation of up to about 2À5 and a particle size distribution of: 1-Substantially all particles smaller than 10 mesh (U.S. Standard Screen); 2-At least 30% on a cumulative weight basis of particles smaller than 30 mesh (U.S. Standard Screen). Standard Geometric Deviation is defined as the ratio of the 84À13% cumulative size to the mean (50%) cumulative size or the ratio of the mean (50%) cumulative size to the 15À87% cumulative size. Fig. 1 shows a rotary compactor for cold compaction of the particles into prism shaped pellets. Suitable particles are polymers of α-olefins having a melt index less than 100 and in the examples polyethylene is used. Reinforcing agents, e.g. glass fibres and/or other additives may be blended with the thermoplastics prior to cold compaction.
Patent GB-536970-A (GB)
Title: Improvements in or relating to flexible abrasive pads
IPC: B24D9/08
Filed: 1939-09-12
Abstract: 536,970. Abrading-pads. GWATKIN, F. A. S. (Black & Decker Manufacturing Co.) Sept. 12, 1939, No. 25607. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 21, 1940.] [Class 60] A pad for use on a rotary surfacing machine comprises a hub 2 having a flange 12 round which is moulded a reinforced rubber disc 3, the reinforcement consisting of overlapping sheets 11<SP>1</SP> of fabric vulcanized into the disc and a further fabric layer 22 between the abrasive sheet 7 and the rubber body of the disc. The disc is recessed at its central part and is clamped to the spindle 6 by a nut 8 which also secures the abrasive sheet by clamping it against a boss 13 on the hub. The thickness of the rubber disc and the strength of the reinforcement gradually decrease outwards from the shoulder 20 as as to obtain the required variations of flexibility. The disc may be mounted in a portable machine, Fig. 3, comprising a motor 14 with hand grips 17, 17<SP>1</SP> and switch 18.
Patent GB-1175820-A (GB)
Title: Amino-Adamantane Derivatives
IPC: C12P17/00
Filed: 1967-01-30
Abstract: 1,175,820. Adamantane derivatives. UPJOHN CO. 30 Jan., 1967 [18 Feb., 1966], No. 25623/69. Divided out of 1,173,492. Heading C2C. Novel adamantane derivatives of formulµ in which R is hydrogen, C 1-18  alkyl, C 7-13  aralkyl or C 3-6  cycloalkyl-methyl and X<SP>1</SP> is hydroxy or keto, and, when R is not hydrogen, the corresponding tetrahydropyranyl ethers thereof, are prepared by (a) hydrolysing a compound of the formula in which Acyl is the acyl radical of a monobasic hydrocarbon carboxylic acid of 1 to 18 carbon atoms, with an aqueous strong base to produce a corresponding 1-aminoadamantane of Formula I or II in which R is hydrogen, or (b) reducing a compound of formula in which Acyl is C 1-18  alkanoyl, C 7-13  aralkanoyl or C 3-6  cycloalkyl-carbonyl, with lithium aluminium hydride, hydrolysing the 1-aminoadamantane tetrahydropyranyl ether so obtained with a strong acid in the presence of an organic solvent and treating the resulting 1-amino-adamantane acid addition salt with a base to produce the corresponding compound of formula in which R<SP>11</SP> is the same as R except for hydrogen, and, if desired, subjecting the 4-hydroxy compounds of Formula VIII to an Oppenauer oxidation reaction to obtain the corresponding 4-keto compounds. The compounds of Formulµ I and II may be converted into pharmacologically acceptable acid addition salts by conventional methods. Pharmaceutical compositions having central nervous stimulant activity, for oral or parenteral administration, comprise a compound of Formula I or II, or a pharmaceutically acceptable acid addition salt thereof, together with a carrier.
Patent GB-817743-A (GB)
Title: Production of 2,4-bis(substituted)-1,3,5-triazines
Filed: 1956-08-22
Abstract: The invention comprises 2,4-bis-(substituted-1,3,5-triazines of the general formula <FORM:0817743/IV (b)/1> (wherein R is an alkyl radical containing one to twelve carbon atoms, or a chloroalkyl radical having the chlorine atom or atoms on the carbon atom adjacent to the triazine ring, and X is (1) the group <FORM:0817743/IV (b)/2> in which R has the same meaning as above, or (2) hydroxy, provided that when X is hydroxy, R is an alkyl radical), and their preparation by (i) reacting an amidine of the general formula <FORM:0817743/IV (b)/3> (wherein R is a chloroalkyl radical as defined above) with phosgene to obtain a 2,4-bis-(chloroalkyl) - 6 - hydroxy - 1,3,5 - triazine chloroalkyl-amidine salt (I; R=chloroalkyl, X = -OH.HN : C(R)NH2); (ii) obtaining a 2,4 - bis - (alkyl) - 6 - hydroxy - 1,3,5 - triazine alkylamidine salt (I; R=alkyl, X = -OH.  HN : C(R)NH2) by reducing the 2,4-bis-chloroalkyl) - 6 - hydroxy - 1,3,5 - triazine - chloroalkylamidine salt in the presence of a hydrogenation catalyst; and (iii) obtaining a 2,4-bis - (alkyl) - 6 - hydroxy - 1,3,5 - triazine (I; R = alkyl, X = -OH) by reacting the corresponding alkylamidine salt with a hydrogen halide and the resulting hydrohalide salt with an alkali. Examples describe the preparation of 2,4 - bis - (trichloromethyl) - 6 - hydroxy - 1,3,5 - triazine trichloroacetamidine salt, 2,4-bis - (dichloromethyl) - 6 - hydroxy - 1,3,5 triazine dichloroacetamidine salt and 2,4-bis-(monochloromethyl) - 6 - hydroxy - 1,3,5 - triazine monochloroacetamidine salt by phosgenating, respectively, trichloro-, dichloro- and monochloroacetamidine in an aqueous, alkaline medium. The three chloroacetamidine salts are hydrogenated in methanol over palladium on carbon in the presence of triethylamine to give, in each case, 2,4-dimethyl-6-hydroxy-1,3,5-triazine acetamidine salt which gives on treatment with gaseous hydrochloric acid, 2,4-dimethyl - 6 - hydroxy - 1,3,5 - triazine hydrochloride which is converted to the free base by treatment in methanol with aqueous sodium hydroxide.
Patent GB-1031712-A (GB)
Title: Manhole cover lifter
IPC: B66F19/00
Filed: 1961-07-15
Abstract: 1,031,712. Prizing tools. A. G. COLEMAN. July 13, 1962 [July 15, 1961], No. 25720/61. Heading B4C. A lifter for manhole or like covers A comprises a lever 6, 7, which may be telescopic, hingeing on a swivel pivot 8 and with means 1, 5 for attaching the cover to the lever so that the cover may be lifted out and swung clear of the opening. The means for connecting the cover to the lever may be in the form of a beam 1 connected to the cover by means of keys 3 passing through holes or slots 4 in the beam and to the lever by a bracket 5. In use, blocks 2 are placed under the ends of the beam and by adjusting a nut on each of the keys, the seal between the cover and its housing is broken. The lever is then raised to lift and swing the cover clear of the opening. The pivot 8 may be arranged between the operator and the cover so that the lever is pushed downwardly instead of being raised. The lever may be of any suitable crosssection such as round, square, oblong, oval, and hollow or solid; the lever may be in two pieces which telescope into one another and can be inserted into the beam for ease of carrying. The keys may be connected to the lever by chairs or links instead of by the beam.
Patent GB-245231-A (GB)
Title: Fastenings for attache cases and the like
IPC: E05B65/52
Filed: 1924-10-29
Abstract: 245,231. Cheney, C. W. Oct. 29, 1924. Stud-and-socket fastenings.-In fastening for attachÚ cases a raised portion g<2> is provided on the bolt-casing a to provide a socket for a notched tongue c on the lid of the case. A spring plunger h may be provided to press the tongue upwardly after release from the bolt d. The socket and tongue may be prolonged to extend across the casing a and several notches may be provided in the tongue so that the bolt d engages therewith even when the case is not fully closed. In a further modification the raised portion g<2>, Fig. 6, is provided with a number of holes c<4> and a spring peg d, carried by the tongue c<2> is adapted to engage one of these holes. A keyoperater locking-piece i can be moved behind the peg to hold it in engagement with one of the holes. In these modifications the tongue is hinged to its carrier plate to allow the necessary angular movement or it may be doubly hinged.
Patent GB-460672-A (GB)
Title: Improvements relating to cycle dynamos
IPC: B62J6/06
Filed: 1935-09-18
Abstract: 460,672. Driving dynamos. WATSON, L. T. Sept. 18, 1935, No. 25860. [Class 35] A dynamo is mounted on the seat tube of a cycle above the wheel and is movable about a pivot, the axis of which is normal to the tube and lies in or parallel with the plane of the main frame of the cycle. In the form shown, the spring which urges the dynamo pinion g into engagement with the rear tyre is disposed about a sleeve l secured to the clip b which grips the seat tube c, one end of the spring being fixed to a flange l<1> on the sleeve and the other end to a bracket a<1> on which the dynamo a is adjustably mounted. The dynamo is held in the inoperative position by the engagement of a finger o carried by bracket a<1> with a recess in the flange l<1>. A slightly modified pivot is also described.
Patent GB-980010-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H71/50
Filed: 1963-07-01
Abstract: 980,010. Automatic circuit breakers. GENERAL ELECTRIC CO. July 1, 1963 [July 25, 1962], No. 25968/63. Heading H2B. In an overload circuit breaker having a spring biassed toggle linkage 37, 39 the upper link 37 is provided with a projection 37A cooperating, in the tripped position, with a stop 50 to increase the ability of the spring bias 45 to stop the contact rebounding into the on position. The linkage is supported at 38 by a pivoted arm 33 normally latched at 36 but releasable by tripping means 28 (not shown). Upon release the arm 33 pivots about 34 until 38 passes over centre of spring 45 and the toggle collapses to open the contacts. Upon rebound of the contact, stop 50 prevents motion of link 37 about 38 (i.e. along A) and contains it to move about 34 (i.e. along B) with much greater extension of spring 45, thus reducing the rebound.
Patent GB-1209706-A (GB)
Title: Improvements in or relating to the generation of oscillations
Inventor: CHAPPELL TERENCE ROY
IPC: G04F5/00
Filed: 1968-05-31
Abstract: 1,209,706. Oscillator circuits. SMITHS INDUSTRIES Ltd. 2 June, 1969 [31 May, 1968], No. 26118/68. Heading H3T. A method of controlling the frequency of a sinewave oscillator 6 by means of a higher frequency oscillator 3 comprises: sensing the attainment of a peak value of a parameter of the oscillation of oscillator 6; clamping the, parameter at this peak value to temporarily inhibit oscillation; and releasing the clamp when the oscillator 3 next reaches a datum in its oscillation cycle. As described, the peak value of the current through inductor 8 is sensed by detecting the corresponding passage through zero of the voltage across capacitor 7. When this zero crossing occurs, trigger circuit 10, 11 switches to produce an output pulse which turns on transistor 18 via transistor 12. Transistor 18 then feeds to inductor 8 a current which is equal to the peak value of the oscillatory current. The high-frequency oscillator 3 provides a train of pulses, and the arrival of the next pulse in this train turn on transistor 19 to switch off transistor 18 and allow the oscillator 6 to recommence oscillation.
Patent GB-1001079-A (GB)
Title: Packaging of eggs with their points downwards
IPC: B65B23/06
Filed: 1962-07-09
Abstract: 1,001,079. Gripping devices for lifting eggs. LEEUWARDER PAPIERWARENFABRIEK N.V. July 9, 1962 [July 11, 1961], No. 26198/62. Heading B8H. Eggs are oriented with their pointed ends downwards ready for producing by gripping them at two points outside their longitudinal axes, raising them and allowing them to rotate under the influence of gravity until their long axes are vertical. In a first embodiment, Fig. 2, an egg is gripped and raised by spring-loaded jaws 3, 4 which can revolve around their axes 5, 6. In a second embodiment, Fig. 3a, gripping plates 11, 12 are slidably mounted on a shaft 13 and urged apart by a spring 17. The plates are moved toward each other by downward movement of an actuator 20 with sloping inner sides 21, 22 which co-operate with wedge members 15, 16 mounted on the plates. Compressed air or magnetic means may be used to move the plates 11, 12. A battery of grippers may be used to fill an egg carbon.
Patent GB-688017-A (GB)
Title: Improvements in or relating to siloxanes
IPC: C08G77/00
Filed: 1951-11-08
Abstract: The invention comprises organo-silicon compounds of the formula [R11COCHR1CH2Si(CH3)2]2O wherein R11 is an alkyl or monocyclic aryl hydrocarbon radical, and R1 is hydrogen or an alkyl radical, and a process for preparing the above compounds by reacting compounds of the general formula R11COCHR1CH2Si(CH3)2R, where R is a methyl or phenyl radical and R1 and R11 have the above significance, with concentrated sulphuric acid to form the sulphate esters R11COCHR1CH2Si(CH3)2OSO2H, hydrolysing the esters to form the silanols R11COCHR1CH2Si(CH3)2OH which condense to form the desired organo silicon compounds.  In the examples, compounds of the above general formula are prepared by the above process in which R11 is methyl and R1 is hydrogen, methyl and ethyl and in which R11 is phenyl and R1 is hydrogen, in each case the group R in the starting material is methyl.  Organo-silicon compounds of the general formula R11COCHR1CH2Si(CH3)2R, where R, R1 and R11 have the above significance, are prepared by any of the following series of reactions:-  (1)  <FORM:0688017/IV (b)/1> <FORM:0688017/IV (b)/2> water R(CH3)2SiCH2CH2COR11. (2)  <FORM:0688017/IV (b)/3>  (3) <FORM:0688017/IV (b)/4>  The reaction is completed as in reaction 1 above by hydrolysing, treating the hydrolysis product with sulphonyl chloride and the acid chloride thus produced is treated with the sodium compound R211Cd.
Patent GB-440321-A (GB)
Title: A new or improved game-carrier
IPC: A01M31/00
Filed: 1935-09-23
Abstract: 440,321. Game carrier. CLAYTON, R. T., Chorley Hall, near Bridgnorth, Shropshire. Sept. 23, 1935, No. 26254. [Class 119] Relates to game carriers comprising a board a with a slot d enlarged at one end e to permit the insertion and removal of the head of the bird. According to the invention, the edge of the enlargement e is formed with a flange f having a gap g in line with the slot d, so as to prevent the fall of the bird when its head is resting against the edges of the slot d. This renders unnecessary the provision of closing means heretofore provided ; but closing means may be added, for example, a rotatable slotted ring h, Fig. 5, on the flange f. The board is fitted with a handle comprising a leather strap b with a rounded wooden hand-grip c.
Patent GB-1171446-A (GB)
Title: Improvements in and relating to the Formation of Holograms
IPC: G02B27/00
Filed: 1966-10-21
Abstract: 1,171,446. Holography. BATTELLE DEVELOPMENT CORP. Oct. 21, 1966, No. 26297/69. Divided out of 1,125, 795. Addition to 1,104,041. Heading G2C. A method of producing an elongated strip hologram comprises moving an exposure opening 319 along a film 309 which remains stationary relative to the object 323 and using a coherent beam 325 to illuminate the object 323 and provide the reference beam 325<SP>1</SP>, such as by reflection at a mirror 327. As shown a camera 301 is driven on wheels 303 along a track 305 and film 309 passes from spool 311 to spool 317 via rollers 313, 315. A pair of guide rails 321 pass through the camera and the rollers 313, 315 roll therealong so that film 309 is stationary relative to the object 323 as it passes opening 319 which may be of variable width to vary the exposure time in accordance with the speed of movement of the camera.
Patent GB-913253-A (GB)
Title: Improvements in or relating to decorative articles
Inventor: SCHALLER HERMAN
IPC: A44C15/00
Filed: 1960-07-28
Abstract: 913,253. Ear rings. SHALLWIN Ltd. July 27, 1961 [July 28, 1960], No. 26348/60. Class 43. [Also in Group XXV] The ornamented part 4 of an ear ring is held in position on the ear clip 3 by means of a magnet 1 and keeper member 5. In a necklace fastening the magnet 11 is held in a cup 12 attached to one end of the necklace string. The ornamented part 16 carries a ferrous keeper 17 having a tab 19 engageable in a slot 21 in the wall of the cup 12.