baber/WOPTO huggingface dataset:
Patent GB-1017708-A (GB)
Title: Method of polymerizing alpha-olefins
IPC: C08F10/00
Filed: 1964-04-16
Abstract: A polymerization catalyst for alpha-olefins comprises (1) an organoaluminium dihalide, or an organoaluminium sesquihalide, (2) a halide of a transition metal of Group IVa to VIa of the Periodic Table and (3) at least one compound selected from aminosilanes, silazanes, aminosulphides, aminosulphoxides, and aminosulphones. The alpha-olefin may be ethylene, propylene, butene-1, pentene-1, decene-1, 3-methylbutene-1, 4-methyl-pentene-1, 4-methyl-hexene-1, allyl benzene, styrene, o-methyl-styrene, or vinyl cyclohexane, and mixtures. The alpha-olefines may be copolymerized with butadiene, isoprene, vinyl cyclohexene, or cyclohexadiene.  The polymerization may be effected by known "low-pressure" techniques, and in the presence, if desired, of molecular weight regulators such as hydrogen, alkyl or halogen halides, or halides or alkyls of Zn, Cd, or Hg.  The Specification contains a long list of catalyst components.  Catalysts exemplified are TiCl3+C2H5AlCl2+tetrakis(dimethylamino silane, TiCl3+phenyl-aluminium dichloride+ tetrakis (dimethylamino) silane, TiCl3+ethyl-aluminium dibromide + tetrakis (dimethylamino) silane, TiCl3+ethylaluminium sesquichloride+tetrakis (dimethylamino) silane, TiCl3+C2H5AlCl2+ [(CH3)3Si]2NH, or [(CH3)3Si]NCH3 or (CH3)3SiNHC6H5, or [(CH3)2SiNH]3, VCl3+ethylaluminium dichloride + hexamethydisilazane, TiCl3 + C2H5AlCl2 + trimethylanilinosilane, TiCl3 or VCl3+ethylaluminium sesquichloride + trimethylpiperidinosilane, TiCl3+ethylaluminium sesquichloride + [(CH3)2N]2S, or [(CH2)3N]SO, or [(CH3)2N]SO2, and TiCl3+ethylaluminium sesquibromide+dipiperidino-sulphone. The above TiCl3 component is made by reducing TiCl3 with Al, and comminuting the product.
Patent GB-112760-A (GB)
Title: Improvements in or relating to Ball or Bulb Lubricators.
Inventor: BARY CHARLES PAUL
IPC: F16N21/00
Filed: 1917-10-31
Abstract: 112,760. Bary, C. P. Oct. 31, 1917. Gravity-feed lubricators.-A glass ball or bulb lubricator is formed with a moulded complete or interrupted screw-thread 2 to engage a metal fitting 5. A conical portion 4 bears against a washer 9 in a corresponding part 6 of the fitting, or a flat washer is placed beneath the lower end of the glass stem 2. In a modification, raised wedgeshaped ribs on the glass stem 2 engage under projections on the fitting in the manner of a bayonetjoint.
Patent GB-199931-A (GB)
Title: Improvements in clips for securing the edges of vehicle hoods or for like purposes
IPC: B60J7/12
Filed: 1922-06-08
Abstract: 199,931. Hillman Motor Car Co., Ltd., and Green, E. A. June 8, 1922. Catches yielding to pull and pressure.-A metal tongue A, preferably with a rib A<2> secured to the edge of a vehicle hood B engages a spring-clip D mounted on a fixed portion E.
Patent GB-567480-A (GB)
Title: Improved device or means for supporting the ropes or cables of aerial ropeways or the like
IPC: E01B25/18
Filed: 1943-09-28
Abstract: 567,480. Suspension bridges. HOLMAN, H. Sept. 28, 1943, No. 15931. Convention date, Feb. 2, 1943. [Class 20 (i)] [Also in Group XXX] A support for the cables of aerial ropeways, suspension bridges, cable spans, &c. on their towers comprises a saddle 1 with a curved groove 2 for the cable and having a surface 6 adapted to roll on a roller &c. 10 mounted on the tower. The 'saddle may have depending walls 8, and the surface 6 may have depending walls 13 and a cover 16 enclosing the roller, which may be mounted in an oil trap 18. Oil may be fed to the roller bearing and periphery from a cup 19 through ducts 20, 24.
Patent GB-742833-A (GB)
Title: Improvements in or relating to refuse-collecting vehicles
Inventor: GIBSON GEORGE THOMSON
IPC: B65F3/20
Filed: 1953-06-10
Abstract: 742,833. Packing material into refuse-vehicle bodies. GIBSON & SON, Ltd., J. May 12, 1954 [June 10, 1953], No. 15950/53. Addition to 680,174. Class 78 (4). Forks 31, Fig. 2, on each side of the oscillatory door of the parent Specification prevent refuse falling back from the body of the vehicle into the charging chamber which is formed as a rear door unit carrying the oscillatory door and the forks and serving to open the rear of the vehicle when it is to be discharged by tipping. The rear door unit comprises a pair of side housings 28 pivoted on the same suspension rod as the oscillatory door 5, 6, 10 and carrying hydraulic rams 30 which operate the forks 31 through bell-cranks 33 and yokes 36. Means for swinging the rear door unit outwardly when the vehicle is to be tipped may be provided. The invention may be embodied in a unit for attachment to an existing vehicle.
Patent GB-102259-A (GB)
Title: Improvements in or relating to Apparatus for Removing Scale from Boiler and other Tubes.
IPC: F28G3/14
Filed: 1916-11-08
Abstract: 102,259. Compagnie Generale de Detartrage des Chaudieres et Conduites d'Eau. Nov. 13, 1915, [Convention date]. Cleaning internally, rotary appliances for.- The spring-pressed scraping-tools 1 of a rotary tube-cleaner are formed with annular, or right or left handed helicoidal, grooves of triangular crosssection, the sides of the triangle being both oblique in the same direction with regard to the axis of the scraper, as shown in Fig. 5, or one oblique and the other normal to the axis as shown in Fig. 1, the object being to obtain automatic grinding of the cutting-edge and to facilitate the driving of the detached deposit in front of the scraper. The scrapers arc rotated by contact with the wall of the tube in the opposite direction to that in which the body 4 is rotated. In addition, the scrapers are given a slight reciprocating movement, whereby the detached deposit is pushed forward by the normal or more oblique faces of the grooves on the scrapers, this expulsion being preferably aided by a stream of water flowing through the tube.
Patent GB-510482-A (GB)
Title: Improvements in rivets and tools for removing rivets
IPC: B21J15/50
Filed: 1938-05-30
Abstract: 510,482. Removing rivets by drilling. ROE & CO., Ltd., A. V., and TAYLOR, R. F. May 30, 1938, No. 16053. [Class 83 (iii)] In a drilling device for removing tubular rivets or eyelets from the parts which they secure, a non-rotary tool surrounds the drill and engages a notch, serrations &c. on the head of the rivet to prevent it from rotating with the drill The body a of a drilling machine has a tubular part d secured thereto, preferably by screwing, which has a sleeve e splined therein by means of a screw g and a slot h. The tool i surrounding and guiding the drill b is attached to the sleeve e and has diametrically opposed prongs j engaging a cross-cut &c. k which may be formed in the head of the rivet m during manufacture. A spring f presses the sleeve and tool downwards to maintain the tool in contact with the rivet, and the tool i may be changed for others of different size to fit the drill and rivet.
Patent GB-1502326-A (GB)
Title: 11-substituted steroids of the estrane series
IPC: A61K/
Filed: 1975-04-18
Abstract: 1502326 11-(Substituted methyl)-steroids of the estrane series AKZO NV 18 April 1975 [26 April 1974] 16058/75 Heading C2U Novel steroids of the formula wherein R 1  is a free, esterified or etherified hydroxy group or halogen; R 2  is C 1-4  alkyl; R 3  is =O or (α-Y)(#-Z) in which Z is a free, esterified or etherified hydroxy group and Y is a C 1-4  aliphatic hydrocarbon group; R 4  is H or a free or esterified hydroxy group; and ring A including the bond to carbon atom 6 has one of the structures wherein R 5  is H or a free, esterified or etherified hydroxy group, R 6  is H 2 , =O or H(#-R 7 ) in which R 7  is a free, esterified or etherified hydroxy group and there is a double bond starting from carbon atom 5, are prepared (a) from 11 -methylene steroids by reaction with diborane followed by oxidation to give 11#- hydroxymethyl steroids which may thereafter be esterified or etherified or converted into 11#- halomethyl steroids; or (b) from 11-oxo steroids by reaction with QCH 2 M (wherein M is Li or Mghal and Q is alkoxy) to give 11-alkoxymethyl-11-hydroxy steroids followed by dehydration and hydrogenation of these to give 11#-alkoxymethyl steroids which may subsequently be hydrolysed. The novel products of these processes may be transformed by standard procedures into other novel steroids of the invention. In these processes a 17-keto group may be protected, e.g. as an ethylene ketal, and subsequently released, and a 3-keto group may be protected, e.g. as a #<SP>3,5</SP>-3-pyrrolidine enamine, and subsequently released. A 16α- hydroxy group is introduced by conversion of a 17-one to a #<SP>16</SP>-17-ol acetate, conversion of this to a corresponding 16α,17α-epoxide and reduction of this. A 3-keto steroid is converted to a 3-unsubstituted steroid via a 3-ethylenedithioketal and a ring-A aromatic steroid is converted to a #<SP>4</SP>-3-one via a #<SP>2,5(10)</SP>-3-ol ether. 3 - Hydroxy - 11 - methylene - #<SP>1,3,5(10)</SP> - estratrien - 17 - one 3 - methylether 17 - ethylene ketal is prepared by ketalization of the corresponding free 17-one. The novel steroids possess contraceptive, estrogenic, progestational, ovulation-inhibiting, gonad-inhibiting and anabolic properties, and they may be made up into pharmaceutical compositions with suitable carriers. Specification 1,455,270 is referred to.
Patent GB-145035-A (GB)
Title: A process of preparing durable cupric-ammonia cellulose solutions for spinning artificial thread or the like
IPC: C08B1/00
Filed: 1920-06-14
Abstract: Solutions of cuprammonia cellulose, which are permanent and capable of being satisfactorily spun, are obtained by the addition of sugars both of the grape-sugar group and of the cane-sugar group; the former, which are added to the initial cuprammonia solution, prevent oxidation of the cellulose during the preparation of the spinning solution, and of these sugars an amount 1/4 per cent of the cellulose taken is necessary; the sugars of the cane sugar group, of which refined beet-sugar is the most suitable, are added to the otherwise finished cellulose solution and effect or maintain the hydration of the cellulose, and of these sugars the proportion to be added is 2 per cent of the cellulose taken, or a little more if the cellulose has suffered no degradation.  By the addition of a reducing sugar, it is stated that the solubility of cupric oxide in ammonia is increased, and the solution of the cellulose in such solution rendered more rapid and complete.  Specifications 28631/97, 4104/09, 14112/09, and 15991/10 are referred to.ALSO:The solubility of cupric oxide in ammonia is stated to be increased by the addition of grape sugar or other reducing sugar.
Patent GB-1080575-A (GB)
Title: Improvements in guillotine shearing machines
IPC: B23D35/00
Filed: 1965-04-14
Abstract: 1,080,575. Guillotine cutting machines. HAMMERLE A.G. April 14, 1965 [April 15, 1964], No. 16128/65. Heading B4B. [Also in Division F2] In a guillotine cutting machine of the kind in which the moving blade is carried on a swivel ram provided with trunnions mounted in bearings in the side frames of the machine, means are provided for subjecting the trunnions to thrust in a direction transverse to the axis of rotation of the ram to compensate for any play in the bearings. The means may comprise compressed packs of dished spring washers or pistons subjected to hydraulic or pneumatic pressure only during cutting operations.
Patent GB-1504391-A (GB)
Title: Compatible four channel recording and reproducing system
IPC: H04S3/00
Filed: 1975-04-18
Abstract: 1504391 Quadraphonic recording and playback systems CBS Inc 18 April 1975 [18 April 1974] 16129/75 Heading H4R In a quadraphonic recording/playback system, composite signals L T , R T , containing predominant components L f , R f  respectively and subdominant out-of-phase components L b , R b , are recorded in two channels of a recording medium whilst two auxiliary signals both containing all components L f , R f , L b , R b  but in different phase relationships are recorded in two respective auxiliary channels of the medium. The consumer has a choice of sophistication of playback equipment to utilize none, only one or both auxiliary signals. The L T , R T  composite signals are encoded as in Fig. 3, and recorded directly on a gramophone disc whilst the auxiliary signals are superimposed as the upper sideband of an amplitude modulated 20 kHz carrier. The reproduced composite signals L T , R T  are compatible with "SQ" decoders to produce signals L<SP>1</SP> f , &c. which may then feed the circuit of Fig. 5B in which a first circuit 130A combines auxiliary signal Sl to each of the input signals L<SP>1</SP> f  &c. to enhance the predominant components as at L<SP>11</SP> f  &c. These signals may then be processed further by combination in 130B with reference and phase-shifted versions of S2 to completely cancel the subdominant components. Reference has been directed by the Comptroller to Specification 1,422,163.
Patent GB-794469-A (GB)
Title: Improvements in or relating to instruments for measuring distances on maps, plans orthe like
IPC: G01B3/12
Filed: 1956-05-25
Abstract: 794,469. Map &c. measurers. PETION, L. J. May 25, 1956, No. 16297/56. Class 106(2). The wheel 20 of a map measurer drives a rubber band 24 passing around pulleys 28, 26 and having an indicator mark, and a series of different scales is carried on a paper roll 36 wound on shafts 38, 40 with pinions 42, 44 engaging a ring gear 55 in the inside of a cap 52 so that by turning the cap the appropriate scale can be selected. The instrument comprises a wheel housing 10 having a slot 14, the slot having an enlarged inner portion 16, the measuring wheel 20 protruding through this - slot, a hub 22 on this wheel located inside the housing, another wheel 28 inside the enlarged portion, a transparent barrel 30 carried by the housing, and a bracket 46 at the other end of the barrel holding another wheel 26 mounted on a shaft 48. A circular band 24 of rubber is mounted over the hub of the wheel 20 and the rims of other two wheels 48 and 60, and a roll of paper imprinted with scales 36 has each end mounted and rolled on to shafts 38, 40 seated with one end in the wheel housing and the other end protruding through the wheel bracket 46. A mask 56 inserted in the barrel is shaped to leave a portion of the barrel uncovered for visibility of one of the scales and the indicator band. The band has two indicators spaced a scale length apart.
Patent GB-1326686-A (GB)
Title: Discharge lamps
IPC: C09K11/77
Filed: 1971-05-21
Abstract: 1326686 Electric discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 May 1971 [25 May 1970] 16307/71 Heading H1D [Also in Division C4] A discharge lamp has a luminescent screen containing a first luminescent material whose emission maximum is in the green region of the spectrum and a second luminescent material having a maximum in the region 380 to 450 n.m. The weight ratio of the second material to the first is between 1 : 3 and 9 : 1 and the second material includes as activator bivalent europium. The first material may be manganese activated zinc silicate and/or manganese activated magnesium gallate in which part of the gallium may be replaced by aluminium. The second material may have a composition x AO, y BaO, z MgO, P 2 O 5  : p EuO wherein A is strontium and or calcium and 1À90 # x + y + z + p # 2À05; 0 # y # 1À2; 0 # z # 1À6; y + z # 1À6; and 0À005 # p # 0À21. The second material may alternatively be defined by (Ba x  Sr y  Eu z O) 3 . MgO. (SiO 2 ) 2  where 0À90 # x + y + p # 1À05; 0 # y # 0À75; 0À003 # p # 0À05. The luminescent material can be coated on the inside of an envelope with an intervening reflector layer of titanium oxide. A strip of the envelope may be left uncoated to provide intense illumination.
Patent GB-1351525-A (GB)
Title: Binuclear n-heterocyclic n,n-diglycidyl compounds processes for their manufacture and their use
IPC: C07D239/22
Filed: 1971-05-21
Abstract: 1351525 Diglycidyl compounds CIBAGEIGY AG 21 May 1971 [22 May 1970] 16357/71 Heading C2C [Also in Division C3] Novel binuclear N-heterocyclic N,N<SP>1</SP>-diglycidyl compounds having the formula wherein X 1  and X 2  are hydrogen atoms or methyl groups; R 1  and R 2  are hydrogen atoms, methyl, ethyl or phenyl groups; Z 1  and Z 2  each denote a nitrogen-free divalent radical which is required to complete a 5- or 6-membered, unsubstituted or substituted heterooyclic ring; X is the hydrocarbon radical of a dicarboxylic acid obtained by removal of the carboxyl groups, and n is 1 or 2, are prepared by converting the radicals Y and Y<SP>1</SP> in a compound of the formula into 1,2-epoxyethyl or 1-methyl-1,2-epoxyethyl radicals. The radicals Y and Y<SP>1</SP> are suitably (i) hydroxyhalogenoethyl radicals which carry the functional groups on different carbon atoms or (ii) ethenyl radicals. When using radicals (i) the reaction is preferably carried out in the presence of an agent which can split off hydrogen halide, such as a strong alkali. When using radicals (ii) the reaction is preferably carried out in the presence of hydrogen peroxide or a peracid. In the novel compounds, Z 1  and Z 2  are suitably radicals of the formulae wherein R<SP>1</SP>, R<SP>11</SP>, R<SP>111</SP> and R<SP>1111</SP> are hydrogen atoms, alkyl, alkenyl, cycloalkyl or optionally substituted phenyl radicals. The starting materials may be prepared by reacting an epihalogenohydrin or #-methylepihalogenohydrin with a diester of the formula in the presence of, as catalyst, a tertiary amine, a quaternary ammonium base, or a quaternary ammonium salt.
Patent GB-221887-A (GB)
Title: Improvements in and relating to systems of electric motor control
IPC: H02P5/50
Filed: 1923-06-23
Abstract: 221,887. British Thomson-Houston Co., Ltd., (General Electric Co.). June 23, 1923. Speed-maintaining systems. - In systems for maintaining constant relative speed of two motors or two groups of motors forming part of separate Ward Lecnard units, each of the motors 10, 11 drives one of two auxiliary exciters 17, 18, which are connected in opposition in a circuit containing auxiliary field windings 21, 22 of the trespective motors and also auxiliary field windings 19, 20 of the generators 12, 13 of the respective. Ward Leonard units. The main excitation of all the machines is furnished from bus-bars 16, and the connections between the auxiliary excitation windings are such that in case of a departure from the prescribed speed ratio, the excitation and the applied voltage of both motors are changed in opposite directions to restore the ratio. By short-circuiting two of the four auxiliary field windings, the restoring effect may be made to depend upon either change of excitation alone or change of applied voltage alone.
Patent GB-175572-A (GB)
Title: Improved means or apparatus for moulding metallic sockets, cylinders, pipes and the like circular tubular articles
IPC: B22C9/10
Filed: 1921-06-14
Abstract: 175,572. James, J. E., and Williams, I. June 14, 1921. Core-bars.-Cores for cylinders, pipes &c. are made of metal and are collapsable. A ring b is secured to the moulding-box a by studs and cotters and the core is in four sections f<1>, f<2> hinged to it by pins so that they can be swung inwards. They are held in the working position by a plug h, Fig. 4, secured by a cotter j.
Patent GB-400134-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: B60G13/00
Filed: 1933-06-07
Abstract: 400,134. Shock absorbers. SOC. D'EXPLOITATION DES BREVETS L. SIMON (AMORTISSEURS,SANCHOK), 9, Rue Boissy d'Anglas, Paris. June 7, 1933, No. 16403. Convention date, June 7, 1932. [Class 108 (iii).] In a shock-absorber the movable arm is connected to the frame or axle by a device which yields to slow deformations of the suspension due to loading of the vehicle but which has an inertia sufficient for resisting fast deformations due to shocks so that the position of rest of the movable arm remains the same for any load carried by the vehicle. As shown, the arm 1 of the shock absorber is connected to the axle 2 through a piston 5, rod 9 and cylinder 3. The cylinder 3 swivels in a bracket 4 secured to the axle and the piston 5 is provided with a vent 8 which allows liquid to pass slowly from one side to the other as the piston takes up a fresh position due to loading of the vehicle but which restricts the flow of liquid and maintains the piston immovable when subjected to road shocks. The cylinder mav be connected to the arm 1 and the piston rod to the axle 2.
Patent GB-1355672-A (GB)
Title: Textured membranes for blood dialyzers oxygenators and the like fluid exchange devices
IPC: B01D63/08
Filed: 1971-05-21
Abstract: 1355672 Forming sheets GENERAL ELECTRIC CO 21 May 1971 [28 Aug 1970] 16405/71 Heading B5A [Also in Division B1] A method of texturing a semi-permeable membrane for use in blood oxygenators (see Division B1) comprises placing a membrane 18 with one of its surfaces exposed to a space for gas and the other to confront a forming die 16 which has a multiplicity of uniformly spaced open regions, presented towards the membrane, establishing a pressure difference across the membrane, for example by evacuating the space between the membrane and the die so that ambient gas pressure and heat applied by means 24 cause distension of regions of the membrane into the open regions of the die, discontinuing the application of heat then the application of the pressure difference. The die shown in Fig. 3, has staggered cones 17 on its surface; the projections may be pyramids or cylinders. In alternative embodiments a die of converse configuration to that shown or a die plate with small holes or a thick screen may be used.
Patent GB-792258-A (GB)
Title: Improved hollow propeller blade
IPC: B64C11/24
Filed: 1956-05-28
Abstract: 792,258. Blades for screw propellers. GENERAL MOTORS CORPORATION. May 28, 1956 [June 6, 1955], No. 16407/56. Class 114. A hollow propeller blade comprises a thrust member having an aerofoil portion with an external aerofoil thrust surface and a root portion which comprises two united sections, and a camber member united to the thrust member and having an external aerofoil camber surface. The root portion may comprise two united sections and the aerofoil section a third portion united to or integral with one of the sections. The root portion is formed in two sections 34, 36 welded together and each integral with a set of marginal ribs 18, 20 and intermediate ribs 22, 24, 26 which are complementary, the marginal ribs 18, 20 on the lower section 36 being stepped at 38, 40 to receive shorter marginal ribs on the section 34. Continuation ribs on the blade portion 42 are welded transversely to the ribs on the root portions, preferably using triangular inserts at the joins. The root portions 34, 36 may be of unequal size, the division being on a plane spaced from the neutral axis of the blade, the ribs of the upper portion being short and stub-like, and the aerofoil part 42 may be integral with the lower root portion 36.
Patent GB-457807-A (GB)
Title: Means for defrosting the windscreens of motor road vehicles and aeroplanes
IPC: B60S1/54
Filed: 1935-06-06
Abstract: 457,807. Preventing dimming of windscreens. BROOKFIELD, J. C., Floreal, Copsem Drive, Esher, Surrey. June 6, 1935, No. 16459. [Class 20 (iii)] To remove snow and ice from the windscreen 10 of a motorcar or aeroplane, a current of warm air issuing from louvres 9 in the bonnet 5, or fuselage nose, is directed thereon, the air being heated by a branch pipe 1 of the exhaust pipe 2. The pipe 1 is located within the bonnet or fuselage nose and may, as shown, pass through a bulkhead 4, around the three sides of the bonnet and thence under the chassis to re-join the exhaust pipe adjacent the silencer 6. The pipe 1 is encased in asbestos except for a small portion adjacent the louvres, which portion is provided with radiating fins 8. A valve 7 operated from a control 11 on the dashboard 12, regulate the supply of exhaust gases to the pipe 1. On aeroplanes, the branch pipe may discharge directly to the atmosphere.