baber/WOPTO huggingface dataset:
Patent GB-1306203-A (GB)
IPC: B29C41/28
Filed: 1971-01-19
Abstract: 1306203 Making resinous cellular products CONGOLEUM INDUSTRIES Inc 19 Jan 1971 [27 Jan 1970] 2687/71 Heading C3C Cellular resinous products are produced by immersing a resinous composition containing a chemical blowing agent in a heated, fluidized bed. The solid particles in this bed have an average particle size of from 0À00069 inch to 0À012 inch and a bulk density of from 10 to 130 pounds/cubic foot. Preferably the solid particles are glass beads and the bed is fluidized by means of a current of gas ascending through it. The bed may be heated by means of heating elements inserted in it or by heating the gas or by both. Exemplified is the production of polyvinyl chloride foam using azodicarbenamide as the blowing agent. Other materials present are zinc oxide, titanium oxide, dibasic lead phosphite and naphtha as well as plasticizers &c.
Patent GB-1500421-A (GB)
Title: Optically active anthracyclinones
IPC: C07C49/215
Filed: 1975-01-22
Abstract: 1500421 Optically active anthracyclinones and daunosaminyl derivatives thereof SOCIETA FARMACEUTICI ITALIA SpA 19 Jan 1976 [22 Jan 1975] 2691/75 Heading C2C Novel optically active anthracyclinones of the general Formula IV<SP>1</SP> or IV<SP>11</SP> wherein (a) R 1  is H and R 2 =R 3 =H, CH 3 , CH 3 O, Cl or Br, (b) R 2  = R 3  = H and R 1  is CH 3 , CH 3 O, Cl or Br or (c) R 1 =R 3 =H and R 2  is CH 3 O, are prepared by condensing optically active 1,4 - dimethoxy - 6 - hydroxy - 6 - acetyltetralin with a phthalic acid monoester monochloride of the general Formula I<SP>1</SP> wherein R 4  is methyl, ethyl or haloethyl, in the presence of a Lewis acid in a solvent, followed by treatment with NaOH and then HF or methane sulphonic acid -P 2 O 5 . Optically active anthracyclinones of the general Formula VIII<SP>1</SP>, VIII<SP>11</SP>, VIII<SP>111</SP> or VIII<SP>1111</SP> which are novel except when R 1 =R 3 =H and R 2  is CH 3 O, are prepared by reacting an optically active anthracyclinone of general Formula IV<SP>1</SP> or IV<SP>11</SP> with ethylene glycol in the presence of p-toluenesulphonic acid, treating the resulting ketal with N-bromosuccinimide and then methanol, demethylating the resulting mixture of 7(S) and 7(R)-methoxy derivatives at the 6- and 11-positions with anhydrous AlCl 3 , treating the resulting mixture of 7(S) and 7(R)-methoxy- 6,11-dihydroxy derivatives with trifluoroacetic acid and then NaHCO 3  and separating the resulting mixture of 7(S) and 7(R)-hydroxy derivatives by crystallization of chromatography. Novel optically active anthracyclinone daunosaminyl derivatives of the general Formula X, X<SP>1</SP>, XI, XI<SP>1</SP>, XII, XII<SP>1</SP> ,  XIII or XIII<SP>1</SP> wherein R 5  is H or trifluoroacetyl, are prepared by reacting an optically active anthracyclinone of the general Formula VIII<SP>1</SP>, VIII<SP>11</SP>, VIII<SP>111</SP> or VIII<SP>1111</SP> with 2,3,6-trideoxy-3-trifluoroacetamido - 4 - O - trifluoroacetyl - α - L - lyxopyranosyl chloride or 1,2,3,6-tetradeoxy-3-trifluoroacetamido - 4 - O - trifluoroacetyl - L - lyxohex - 1 - enopyranose, followed by treatment with methanol and optional hydrolysis. Optically 1,4-dimethoxy-6-hydroxy-6-acetyl-tetralin is prepared by reacting the racemic compound with (-)-1-phenylethylamine in a solvent, separating the diastereoisomers obtained by crystallization and treating the products with an acid.
Patent GB-1068494-A (GB)
Title: Handle assemblies and means for detachably securing a handle to a rod-like element
Inventor: PARKIN LESLIE
IPC: E05B3/04
Filed: 1965-01-21
Abstract: 1,068,494. Securing handles on spindles. CARR FASTENER CO. Ltd. Nov. 15, 1965 [Jan. 21, 1965], No. 2738/65. Heading F2U. A handle 1 of a door or window is secured on a rectangular cross-section spindle 5 by a spring clip 7 retained in a cavity 3 in the handle 1 by a conical spring washer 9, the spring clip 7 having opposed inclined tongues 8 (Fig. 3, not shown) which permit assembly of the handle on the spindle and then frictionally grip the spindle to prevent reverse movement, the clip 7 being split at 14 whereby a tool, e.g. screwdriver, inserted through a transverse hole (16) in the handle (Fig. 2, not shown) into the slot between ears (17) may spread the clip which together with the handle is thereby released from the spindle 5. The clip 7 is formed with axially extending legs 12 to position it in the handle cavity 3, one leg 13 being longer and engaging a slot in the cavity bore to ensure correct assembly.
Patent GB-388554-A (GB)
Title: Improvements in liquid brake electric switches
IPC: H01H33/16
Filed: 1932-01-29
Abstract: 388,554. High-tension switches sparking-preventing. RUPPEL, S., 8, Palmengartenstrasse, Frankfort - on - Main, Germany. Jan. 29, 1932, No. 2779. Convention date, Jan. 29, 1931. [Class 38 (v).] Sparking between switch contacts opened under a conducting liquid, is prevented by the provision, in parallel with the switch contacts, of a variable resistance which increases with the distance of separation of the contacts. In Fig. 1 the parallel resistance is formed by concentric electrodes 8, 9 immersed in the switch liquid, and connected with the switch contacts 1, 2. As the movable contact 1 is withdrawn, the liquid level in the parallel resistance gradually falls until the parallel resistance circuit is opened, when the main circuit is maintained between the contacts 1, 2 through the switch liquid, along a path restricted by a ribbed insulator 15. Thus when the liquid levels in the spaces between the electrodes 8, 9, and under a piston 6 attached to the contact 1, are the same, the final break is made between the contact 1 and the liquid, and any spark which then forms evaporates liquid which subsequently suddenly expands to extinguish the arc. The vapour pressure under the piston 6 is prevented from reacting on the liquid level between the electrodes 8, 9 by the piston 6 which covers ports 13 leading to the space between the electrodes. The electrode 9 carries an auxiliary contact 3 by which it is connected to the contact 1. The switch may have an additional visible separating point in air, and in switching on, the contacts 1, 2 may be connected without the interposition of liquid resistance. In a modification the parallel resistance is external to the switch, and the piston 6 connects one of the resistance electrodes to the contact 1. In a further modification this connection between a contact and an electrode is effected through the switch liquid. In Fig. 4, the contact 1 has a conical extension 42 acting as an electrode for the parallel resistance, the other electrode 39 of which is connected with the fixed contact 2.
Patent GB-656831-A (GB)
Title: Improvements in or relating to furniture
IPC: A47C3/029
Filed: 1946-01-28
Abstract: 656,831. Seats. BIRD, E. Jan. 28, 1946, No. 2785. [Class 52 (ii)] A demountable chair or seat comprises a combined seat and back portion supported upon two floorengaging side portions and secured thereto by releasable connection positioned forwardly of the seat and intermediate of the length of the back rest. The seat and back portion 1 is formed of tubing to form a bent rectangle while each side portion, also of tubing starting at 15 continues as an arm rest 14, front part 13, rocker part 12 which is welded as at 15 and continues rearwardly being bent inwards as at 16. The two side portions are connected together at 17 by a sleeve 18 and bolts 19 while the seat and back portion is bolted to the side portions at 22, 23, 24. The seat comprises a metal sheet 7 welded to the side portions and having curved-down margins. A cover 10 and padding 11 are provided. The back rest proper comprises an envelope cover 6 of canvas, &c.
Patent GB-434462-A (GB)
Title: Improvements in resilient mountings for cycle handle-bars
IPC: B62K21/14
Filed: 1935-01-28
Abstract: 434,462. Handle-bars. BRUYNDONCKX, (known as BRAUNE), A. J., 53, Rue Vander Meersch, Brussels. Jan. 28, 1935, No. 2807. Convention date, May 30, 1934. [Class 136 (iii)] In a resilient mounting for cycle handle-bars, of the type in which the handlebar is supported in an elastic bush or sleeve mounted in a cylindrical housing fixed to the handle-bar stem or support, so as to control relative rotary movement, one or more longitudinal ribs are formed on the housing and on the handle - bar, or on a sleeve fixed to the handlebar, the elastic bush being engaged by the ribs and compressed thereby under shocks, and being subjected to axial compression by screw caps provided on the ends of the mounting. In the form shown in Fig. 1, the outer ring or housing 2 is formed with longitudinal ribs 2<1>, and the inner ring 4 fixed to or forming part of the handle-bar is provided with ribs 4<1>, the intervening space being filled with a rubber mass 3, which is moulded to the required section and is compressed axially by screw caps. Alternatively, the moulded mass 3 may be replaced by a number of rubber rollers or rods 3<1>. In the form shown in Fig. 2, the mounting is divided into two compartments by a central transverse partition 4<2>, a separate rubber bush 3 being mounted in each compartment. The partition 4<2> is fixed to one of the members, e.g. the ring 4, and has a pin-and-slot connection 7 with the other member 2. Longitudinal ribs 5<1> are provided in each compartment, and the rubber bushes 3 are compressed axially by means of screw caps 5, washers 6 being interposed. The washers 6 may be tapered radially in order to increase the grip of the rubber against the housing 2 or ring 4. In another form, Fig. 7, the housing 2 is reduced at its central part so as to form two end compartments with sloping walls 2<2>, rubber bushes 3 therein being compressed by screw caps 5. In further modifications, the screw caps are spaced from the handle-bar or housing and engage and compress a portion only (of annular form) of the rubber bush. The housing and handlebar may be provided with one rib each, arranged close to one another, so that relative movement can take place more in one direction than in the other, whereby starting in racing, &c. is facilitated.
Patent GB-704678-A (GB)
Title: Improvements in gas turbines
IPC: F23R3/52
Filed: 1951-02-06
Abstract: 704,678. Gas turbine plant. BUDWORTH, D. D. Feb. 6, 1952 [Feb. 6, 1951], No. 2933/51. Class 110 (3). [Also in Groups XII and XXVII] In a gas turbine plant comprising an annular combustion chamber 19, 20 having fuel injection means 22 and a centrifugal compressor 6 and an inward radial flow turbine 24 mounted on a common shaft 15, the shaft is journalled in bearings situated at a point remote from the combustion chamber and overhangs said bearings and the turbine is concentrically arranged within or adjacent to the combustion chamber and is connected to an output shaft 33 through suitable gearing. The plant comprises a casing 1 having end plates 2, 10 and a partition 3 for dividing it into a gear casing 4 and a compressor casing 5. Air is drawn through ports 7 and guide vanes 8 into the compressor 6 and is discharged through a diffuser 17 into the combustion chamber. The fuel injectors 22 are offset with respect to kidney-shaped holes 48 in the member 20. The products of combustion together with air entering the member 20 through ports 21 are fed to the turbine 24 through guide nozzles 25. The turbine and compressor units are pinned together as shown or are formed integral with one another. Oil is fed to the gearing through pipes 40, 41; a branch pipe 42 supplying the bearings of the shaft 15. Starting is effected by driving the shaft 33 through a free wheel clutch and a sprocket and chain driving mechanism 36, 37, 38 having a starting dog 39. It is stated in the Provisional Specification that the air supplied to the combustion chamber may be preheated in one or more heat exchangers.
Patent GB-1097488-A (GB)
Title: Double skip lifting and transporting device
IPC: B66B17/26
Filed: 1966-01-22
Abstract: 1,097,488. Skip hoists. D. DOMENIGHETTI. Jan. 22, 1966, No. 3009/66. Heading B8H. A skip hoist arrangement comprises a single winch 5 connected to two skips 2, 12 by a towing rope 6, and a single railway track 1 which in the zone intermediate its ends branches to form two tracks 16, 17 extending in a common vertical plane, the junctions 18, 19 of the two tracks being provided with guide blades adapted to rotate about horizontal axes. The said guide blades are pivotally mounted such that one skip passing the junction 18 or 19 is directed into or from one of the two tracks 16, 17, while the other skip is directed in the opposite direction into or from the other of the tracks 16, 17. The blades are connected through a linkage system, Fig. 6 (not shown), to an arm engageable by a cam roller on one of the skips, for operation thereof. The towing rope 6 exerts a double pull on each skip by passing around vertical sheaves 9 on each side of the skip and around horizontal sheaves 8 on the underside of the skip. In the embodiment of Fig. 3 (not shown) the rope (6) passes around a single vertical sheave carried by a bar mounted on the front of the skip. Rollers on the ends of the bar engage the rails to stabilize the bar.
Patent GB-552799-A (GB)
Title: Improvements in the production of pictures, designs, letter-press or other markings on die-castings, mouldings or pressings
IPC: B44C1/22
Filed: 1942-03-09
Abstract: 552,799. Moulding and ornamenting plastic or metal articles. WOLVERHAMPTON DIE-CASTING CO., Ltd., and WHITEHEAD, E. G. March 9, 1942. No. 3026. [Class 87 (ii)] [Also in Group XXII] Pictures, designs, letterpress and other markings are produced on metal, plastic or other articles while being formed in a mould by producing the design on the inner surface of a die, or on a piece of metal inserted in the inner surface of the die, by a photo-etching process. The die is coated with a protective substance which is acted upon by light passed through a negative or positive transparency, with or without a screen, and the design is etched by acid &c. After the article is pressed or moulded in the die the counterpart of the etched die may be made more prominent by applying colours which are rubbed off to leave the coating in the hollows. If a light colour is used to the uncoloured projecting portions of the design it may be darkened by chemical action. If the design produced is a negative it may be rendered positive in appearance by using a coating pigment darker than the material of the moulded article.
Patent GB-489116-A (GB)
Title: Improvements in and relating to blinds for dark rooms and other rooms
IPC: G03D17/00
Filed: 1937-02-02
Abstract: 489,116. Blinds for dark rooms. LISLE, U. L. O. Feb. 2, 1937, No. 3038. [Class 20 (iii)] A light-excluding blind for a dark room or the like is guided at the sides by grooves having narrow openings d<1> and has attached at its edges spaced resilient members c<2> such as rubber tubing which prevent the blind leaving the guides. The tubular members c<2> are arranged parallel to the roller axis and collapse when wound on the roller. The bottom rail is tubular and has in each end a steel blade g held between two metal cheeks g<2>. The blind fabric is secured to the blade g by outer blades h which bear on the sides of the openings d<1>. When closed the bottom rail and an apron c<4> thereon rest in a recessed bottom frame member el. An operating cord may be attached by a head inside the bottom rail or by a clip j<1> and passes over a pulley f to a cleat or the like.
Patent GB-1134934-A (GB)
Title: Process for the production of polymer containing oxymethylene units
IPC: C08G2/00
Filed: 1966-01-24
Abstract: 1,134,934. Polymers containing oxymethylene units. YAWATA CHEMICAL INDUSTRY CO. Ltd. 24 Jan., 1966 [22 Jan., 1965 (2); 25 March, 1965; 6 April, 1965], No. 3055/66. Heading C3P. A polymer containing oxymethylene units is prepared by polymerizing trioxane with or without comonomer(s) in contact with a cationic catalyst in the presence of at least one accelerator selected from the group consisting of sulphones, cyclic carboxylic anhydrides and cyclic oxalic esters. Specified sulphones are dimethyl-, diethyl-, divinyl- and diphenyl sulphones, bis - (methylsulphonyl)- methane, tetrahydrothiophene - 1,1 - dioxide, 2,4 - dimethyltetrahydrothiophene - 1,1 - dioxide, 3 - methyltetrahydrothiophene - 1,1- dioxide, 2,5 - dihydrothiophene - 1,1 - dioxide, its 3 - methyl derivative, 1,3,5 - trithiane- 1,1 - dioxide, 1,3,3 - tetraoxide - 1,3,5 - trithiane - 1 and 1,3,3,5,5 - hexaoxide, specified anhydrides are succinic, glutaric, adipic, maleic, methylmaleic, itaconic, tetrahydrophthalic, cyclohexane dicarboxylic, phthalic, naphthalene dicarboxylic, diphenic, pyromellitic, diglycolic, tetrachlorophthalic and nitrophthalic anhydrides while specified oxalic esters are ethylene, methoxyethylene, propylene, hexahydrocatechol and catechol oxalates. Specified comonomers are cyclic ethers, spirocyclic orthocarboxylic esters, vinyl compounds, cyclic esters, cyclic siloxanes, aldehydes, cyclic carbonates, ketenes, isocyanate compounds, naphthalene, mesitylene, and 2,4-dichlorophenollong lists being given. The amount of comonomer is preferably 0À1-50 mol. per cent, particularly 0À5-20 mol. per cent based on trioxane. Specified catalysts are boron trifluoride, stannic chloride, ferric chloride, boron trichloride, stannic bromide, boron trifluoride complexes, p - nitrobenzenediazonium fluoroborate, triethyl-oxonium, -borofluoride, -tetrachloroaluminate and -hexachloroantimonate, bromine, iodine, and iodomonobromide. An inert solvent, e.g. hydrocarbons and chlorinated hydrocarbons may be present while the product may be stabilized by etherification, esterification, urethanation or thermal decomposition. The comonomer may be added after the polymerization has commenced.
Patent GB-594356-A (GB)
Title: Improvements in heat-retaining bottles
IPC: A61J9/00
Filed: 1945-05-07
Abstract: <PICT:0594356/IV/1> The protective container for a vacuum flask adapted for use as a baby's feeding bottle (see Group XIII) is made of a transparent plastic, e.g. acrylic ester, which may be coated or sprayed with silica or glass.
Patent GB-212373-A (GB)
Title: Improvements connected with telephone earpieces
IPC: H04R1/10
Filed: 1923-02-02
Abstract: 212,373. Wright, H. G. Feb. 2,1923. Earpieces and attachments; sanitary and hygienic devices.- An indiarubber pad 4, for attachment to a telephone receiver in order to exclude external sounds, is formed with a flange 4<a> and an inwardly turned flange 4<b> to embrace the periphery of the receiver. The pad has an aperture 5, and the external face is recessed. A gauze disc, impregnated with disin fectant, may be disposed within an aperture or recess in the face of the pad.
Patent GB-396410-A (GB)
Title: Improvements relating to the control of direct current electric motors
IPC: H02P3/08
Filed: 1932-02-02
Abstract: 396,410. Control of D. C. motors. WHYMAN, F., Arncott, Greenway Road, Timperley, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 2, 1932, No. 3154. [Class 38 (iii).] Regenerative braking.- At least one of a group of motors is used as an an exciter during regenerative braking, and the regenerating motor armatures A1, A2, A3 are connected between the supply conductors T, G in a series circuit which includes a stabilizing resistance SR the armature A4 of the exciter being connected across the stabilizing resistance in series with the fields F1, F2, F3 of the regenerating motors, and the exciter field F4 being connected across a part of the main series circuit which includes at least one regenerating armature A3. A variable resistance R may be provided in series with the field F4, and the speed and regenerated current of the motors may be regulated by varying the resistances R, SR. In a modification the armature A3 is connected between the ground G and the resistance SR, and the resistance R is connected to a point between the armatures A1, A2. In further modifications the field F4 in series with the resistance R, is connected either directly across the armature A3 or across the supply T, G.
Patent GB-1493222-A (GB)
Title: Cycloalkanone oxime ethers and process for the preparation thereof
IPC: C07D295/08
Filed: 1976-01-27
Abstract: 1493222 Cycloalkanone-oxime ethers EGYT GYOGYSZERVEGYESZETI GYAR 27 Jan 1976 03176/76 Heading C2C Novel compounds I and acid addition and quarternary ammonium salts thereof in which R is phenyl optionally substituted by a halogen atom or by one or more, C 1-4  alkoxy OH, NO 2  or di C 1-3  alkylamine groups, R 1  and R 2  are H or together represent a bond, A is C 2-4  alkylene and B is NR<SP>3</SP>R<SP>4</SP> (where R<SP>3</SP> and R<SP>4</SP> are H or both C 1-4  alkyl or R<SP>3</SP> and R<SP>4</SP> together represent C 4-7  alkylene optionally interrupted by O, NH, N-C 1-3  alkyl or N-benzyl) and n is 3 to 10; are prepared by (1) reacting an oxime B-AONH 2  with (a) the corresponding ketone or thioketone or (b) a compound IV or (2) reacting the corresponding unsubstituted oxime with a compound B-A-Hal or with Hal-CH 2 -A<SP>1</SP>-Hal followed by aminating with NHR 3 R 4  (where Hal and Hal<SP>1</SP> are halogen and A<SP>1</SP> is C 1-3  alkylene); and, if desired, forming a salt thereof or treating a salt formed to produce the free base. 2-Benzylidene-cyclohexanethione is prepared by reacting cyclohexanethione with benzaldehyde. Compounds I have local analgesic, spasmolytic, nicotine-lethality inhibiting, tetrabenazine antagonistic and tetracor-spasm inhibiting properties and form with a carrier diluent and/or auxiliary agent a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-454533-A (GB)
Title: Improvements in or relating to means for modifying the recoil of a gun
IPC: F41A21/36
Filed: 1936-02-03
Abstract: 454,533. Guns. VICKERS-ARMSTRONGS, Ltd., HIGSON, P. R., and GRANT, W., . Broadway, Westminster. Feb. 3, 1936, No. 3213. [Class 92 (ii)] Relates to muzzle-attachments for diminishing gun recoil of the kind comprising nested discs A with intermediate shaped passages A<2> for diverting the direction of the escaping gun gases so that a forward force is exerted on the gun. According to the invention, the passages are so arranged that the angles through which the gases are turned progressively diminish from front to rear so that the gases issue from the rear passages more or less at right angles to the axis of the gun and prevent rearward escape of the gases from inconveniencing the gunner. The discs are formed as shown in Fig. 3 with projections A<3> which form distance pieces and intermediate gas passages A<2> when the discs are nested together in a sleeve B screwed to the gun muzzle D. The discs have peripheral keys A<1> engaging longitudinal slots B<1> in the sleeve and are retained in place by screwed plug C. In order to reduce jump of the gun on discharge, the passages A<2> may be omitted from the lower portion of the discs. Specification 125,141, [Class 92 (ii)], is referred to.