baber/WOPTO huggingface dataset:
Patent GB-437296-A (GB)
Title: Manufacture of derivatives of n-butylaminobenzene
Filed: 1934-04-27
Abstract: N - Butyl - N - (g  - alkoxy - b  - hydroxypropyl) anilines are prepared by heating N-butylaniline or a nuclear substitution product thereof with epichlorhydrin, and treating the resulting N - butyl - N - (g  - chloro - b  - hydroxypropyl) compound, without isolation, with alcoholic alkali.  In the examples: (1) N-butylaniline and epichlorhydrin are heated to 125 DEG  C. and the product is boiled with a solution of caustic soda in ethyl alcohol; N-butyl-N-(g -ethoxy-b -hydroxypropyl)aniline is obtained; (2) 3-chloro-N - butyl - N (g  - methoxy - b  - hydroxypropyl) aniline is obtained by heating 3-chloro-N-butylaniline with epichlorhydrin, and heating the product with a solution of caustic soda in methanol; (3) 1-methyl-4-methoxy-3-N-butyl - N - (g  - methoxy - b  - hydroxypropyl) aniline is obtained similarly from 1-methyl-4-methoxy-3-N-butylaniline; (4) 3-methyl-N-butyl - N - (g  - methoxy - b  - hydroxypropyl) aniline is obtained similarly from 3-methyl-N-butylaniline.  1 - Methyl - 4 - methoxy - 3 - N - butylaniline is obtainable from butyl chloride and 1-methyl-4-methoxy-3-aminobenzene.
Patent GB-548689-A (GB)
Title: Improvement relating to flexible pocket receptacles or wallets
IPC: A45C1/06
Filed: 1941-10-02
Abstract: 548,689. Note cases or wallets. BUXTON, M. A. Oct. 2, 1941, No. 12757. [Class 18] In a flexible pocket receptacle or wallet having a pocket b formed between a pair of wall members 12, 14, extending the full length of the wallet. open on one side 12a and closed on the other 12b and a separate two-walled compartment element a open at one side 21 and closed at the other 21a and adapted to be nested in the pocket b with one side snugly engaged in the bight of the pocket walls at closed side thereof, the element a is nested in the pocket with its open side adjacent the open side of the pocket and is secured therein against substantial movement in any direction by means at the open side of the pocket, e.g. a flap 30, engaging the compartment element. As shown the pocket is open at the end 14a and closed at the end 15 while the compartment element a has both ends 19 closed and the end portions of the flap 30 engage snugly in the bights formed by the walls 22, 23 of the element a at the .closed ends. The wallet may have a portion 16 folding on to the pocket b and the element a may be folded transversely, when out of the pocket, along a line 26. Specification 525,025 is referred to.
Patent GB-1416167-A (GB)
Title: Lamp reflectors for motor vehicles
IPC: F21V15/01
Filed: 1972-03-18
Abstract: 1416167 Mounting vehicle lamp reflectors LUCAS ELECTRICAL CO Ltd 5 March 1973 [18 March 1972] 12797/72 Heading F4R A reflector mounting arrangement for a vehicle lamp comprises a pair of ribs 6 moulded integrally with the plastics reflector 4, the ribs forming channels 10 for receiving opposed edges of a mounting plate 12, the plate being secured to the reflector by adhesive. The plate may be of metal with a stepped portion 13 and semicircular ridges 14. The part 11 of the reflector between the channels may be roughened to provide a key for adhesive introduced through an aperture 15 in the plate. Two similar mounting plates may be similarly secured to the opposite side of the reflector.
Patent GB-687571-A (GB)
Title: Improvements in or relating to method of contacting a liquid with a comminuted solid refining agent and apparatus for carrying out the method
IPC: C10G73/42
Filed: 1949-05-13
Abstract: <PICT:0687571/III/1> Mineral lubricating oils, vegetable oils, fatty acids and petroleum waxes in the liquid phase, or other liquids, are purified by contact with a comminuted solid refining agent which flows uniformly to the contact zone by gas pressure, uniform flow being ensured by establishing a column of the refining agent of uniform height, introducing a gas into the column to fluidize the refining agent therein, discharging refining agent from a lower part of the column into a transfer line and discharging refining agent from the transfer line into the contact zone by injecting gas into the transfer line.  The refining agent may be aluminum chloride a catalytic agent, a filtering agent or a clay such as Fuller's earth, bauxite, the treated montmorillonite known under the Registered Trade Mark "Filtrol." or a hydrous aluminium silicate.  Inert gas, steam or air may be employed for transporting the refining agent.  In the Figure, which shows apparatus for the decolorization of mineral lubricating oil by clay-contacting, clay entering discharge leg 26 from storage bin 34 is fluidized by gas from line 32 and constantly discharged through line 28 into head tank 30.  Return line 44 takes the clay overflow from head tank 30 back to storage bin 24 thereby establishing a constant head of clay in leg 36.  Gas introduced into the bottom of leg 36 at 38 discharges the clay through transfer line 40 into contact tank 10.  Lubricating oil from reservoir 50 is fed by pump 51, through heat exchanger 52 and fired heater 53, and then via line 12 into contact tank 10.  The mixture of oil and clay leaves contact 10 and passes through line 74 to continuous filter 76.  Oil from filter 76 passes to tank 78 and then through sweetening tower 80, to which steam is admitted at 81, and through dry vacuum brightening tower 82.  Thence the oil passes through polishing filter 84 to storage 86.  Spent clay is discharged from the filter 76 at 77. Filter 76 operates under a blanket of gas, and both the gas for the filter and for the clay transfer comes from gas holder 100, to which it is returned after purification.
Patent GB-1425117-A (GB)
Title: Polymer dispersions
IPC: C08L21/02
Filed: 1973-03-16
Abstract: 1425117 Polymer blends E I DU PONT DE NEMOURS & CO 16 March 1973 [16 March 1972] 12844/73 Heading C3G A polymer blend comprises (a) a graft polymer formed by polymerizing chloroprene or 2,3-dichlorobutadiene with up to 2% by weight of sulphur and grafting a C 1-18  alkyl acrylate or methacrylate on to the resulting polymer formed, and (b) a copolymer of sulphur and chloroprene or 2,3-dichlorobutadiene formed in the absence of a thiuram disulphide or other thiophibic reagent but using an emulsification system that permits blending with graft copolymer (a), conversion of monomer to polymer being stopped before a level of over 95% is achieved; the proportion by weight of alkyl acrylate or methacrylate graft portion being 40 to 80% in (a) and 15 to 60% in the total composition; and the proportion of sulphur in (b) being 0À2 to 2%; the number average molecular weight between sulphur atoms in (b) being not over 110,000. The graft polymer may be produced by copolymerizing the chloroprene or 2,3-dichlorobutadiene with the alkyl acrylate or methacrylate in emulsion until all the chlorobutadiene is exhausted and grafting the remaining acrylate or methacrylate on to the copolymer so formed. Examples are given in which (i) chloroprene and 2-ethylhexyl methacrylate are polymerized in the presence of sulphur. The graft polymer produced being blended with polymer produced by polymerizing chloroprene in the presence of sulphur and the blend is dispersed in heptane containing xylenethiol and triethylamine; (ii) a graft polymer produced from chloroprene and 2-ethylhexyl methacrylate is blended with a polymer produced by polymerizing chloroprene in the presence of sulphur and the blend is dispersed in heptane containing tetraethylthiuram disulphide and diethylammonium salt of diethyl dithiocarbamic acid; (iii) as in (i) except that the ester used is 2-ethylhexyl acrylate and the blend is dispersed as in (ii); (iv) chloroprene, 2,3-dichlorobutadiene and methyl methacrylate are copolymerized in the presence of sulphur, the graft polymer produced is blended with a chloroprene/2,3-dichlorobutadiene copolymer produced in the presence of sulphur, and the blend is dispersed in acetone containing xylenethiol and triethylamine; (v) a graft polymer containing equal parts of chloroprene and 2-ethylhexyl methacrylate modified with 0À5% isopropyl xanthogen disulphide is blended with a polymer produced from chloroprene in the presence of sulphur and the blend is dispersed in heptane containing diethylthiuram disulphide and the diethyl ammonium salt of diethyl dithiocarbamic acid, or dispersed as in (i); (vi) a blend as in (i) is dispersed in heptane containing tetraethyl thiuram disulphide and diethylammonium diethyldithiocarbamate.
Patent GB-316647-A (GB)
Title: Process for the manufacture of alkali cyanides
IPC: C01C3/10
Filed: 1928-05-02
Abstract: 316,647. Carpmael, A., (I. G. Farbenindustrie Aht.-Ges.). May 2, 1928. Addition to 301,565. Alkali cyanides. - In preparing alkali cyanides as described in the parent Specification by the action of ammonia and carbon monoxide upon an alkali oxide, hydroxide or salt heated to 400- 800‹ C., the carbon monoxide is replaced wholly or partly by methyl alcohol or other oxygen derivative of a hydrocarbon which yields carbon monoxide on heating above 400‹ C. Ammonia and methyl alcohol vapours may be passed through a molten mixture of sodium cyanide and sodium carbonate heated to 600‹ C. Catalysts or materials to prevent agglomeration may be added.
Patent GB-738208-A (GB)
Title: Improvements in and relating to belt and pulley power transmission
IPC: F16G5/18
Filed: 1953-05-09
Abstract: 738,208. Driving belts. WHITTLE, O. L. May 7, 1954 [May 9, 1953], No. 12995/53. Class 80 (1). In a V-belt consisting of a series of metallic driving links alternating with pivoted metallic connecting links, each driving link comprises a pair of plates 6 of self-lubricating or oilimpregnated metal which are pivoted to single connecting links 4 of steel, the two plates 6 being tapered to engage a pulley groove and being held by a transverse screw or the like 7. The plates 6 may be faced with non-metallic material. It is stated that the taper angle of the belt and pulley is determined by the coefficient of friction and is in the region of 14 degrees.
Patent GB-1108031-A (GB)
Title: Video signal translating system
IPC: H04N5/92
Filed: 1965-03-26
Abstract: 1,108,031. Television signal recording; frequency translating system; frequency modulation; transistor oscillators. NIPPON VICTOR KABUSHIKI KAISHA. 26 March, 1965 [1April, 1964], No. 13028/65. Headings H3R, H3T, H4F and H4R. A television signal applied at terminal 33 is employed to modulate the frequency of a carrier wave generated by an oscillator 51, the arrangement being characterized by the provision of a level fixing circuit including a diode 46 which functions to stabilize the peak white level of the television signal. The invention is of particular application in a signal translating system which has a limited frequency band, such as a magnetic recording and reproducing apparatus, since it ensures that the frequency corresponding to peak white is stabilized and may thus be maintained always within the frequency band of the system. Variation in the television signal amplitude will then cause any frequencies which fall outside the band to correspond to the synchronizing component which may readily be restored in the event of distortion. The level at which peak white is stabilized is determined by adjustment of the tapping of potentiometer 47. The potential across the potentiometer is stabilized by Zener diode 50. The oscillator 51 utilizes feed-back between the collector and base by way of a variable delay circuit comprising inductors 56, 57 and variable capacitance diodes 53, 54, 55 which are connected to receive the levelled television signal on line 44. A magnetic recording and reproducing apparatus is described with reference to Fig. 1-4 (not shown). The television signal is applied to frequency modulate an oscillator as described above and the resulting signal is passed through a filter which attenuates one side band. The signal is then heterodyned with a fixed frequency chosen to produce difference frequencies which are located in band corresponding approximately to the original television signal frequency band and suitable for application to the magnetic recording head. For reproduction the derived signal is heterodyned with a fixed frequency and the sum frequency is selected for application to a conventional limiter and discriminator arrangement.
Patent GB-1139568-A (GB)
Title: Coating compositions for application to cellulosic webs
IPC: C09D123/08
Filed: 1966-03-24
Abstract: 1,139,568. Vinyl acetate ethylene copolymer compositions. AIR REDUCTION CO. Inc. 24 March, 1966 [31 March, 1965 (3)], No. 13045/66. Heading C3P. [Also in Division B2] An aqueous coating composition comprises an aqueous medium having dispersed therein a vinyl acetate/ethylene copolymer of particle size 0À1-0À25 Á and a mineral filler. The copolymer may contain 5-40% ethylene and have an intrinsic viscosity of 1-2À5 dl/gm. in benzene at 30 C. The copolymer may contain a cross-linking agent, e.g. triallyl cyanurate or glycidyl acrylate. The mineral filler may be clay and the composition may contain tetrasodium pyrophosphate, casein, starch, ammonium hydroxide and/or polyvinyl alcohol.
Patent GB-113236-A (GB)
Title: Improvements in Ball and Float Valves.
Inventor: CLEVERLY WILLIAM BARTHOLOMEW
IPC: F16K33/00
Filed: 1917-09-12
Abstract: 113,236. Cleverly, W. B., and Plant, J. H. Sept. 12, 1917. Floats.-Relates to ball attachments having the lever or arm bifurcated and curved to the outer contour of the float. In one arrangement, shown in Fig. 1, the inwardly bent ends b of the fork C are sprung over into recesses in the float A. Projections may, however, be formed or raised out of the material of the float to engage in holes in the ends b. Fig. 3 shows the fork C secured to the float by a yoke or strap g by means of nuts i; the float is grooved to receive the lever and the yoke. A hollow glass float conveniently may be used with these forms of attachment.
Patent GB-946016-A (GB)
Title: Improvements in or relating to initiators and to the production of polymers
IPC: C08F36/04
Filed: 1962-04-05
Abstract: Polymers of conjugated dienes are made by polymerizing one or more dienes alone, or in conjunction with another monoethylenically unsaturated monomer, in the presence of a catalyst composition comprising an organolithium compound dispersed in a hydrocarbon medium which boils in the range of 200 to 700 DEG C. at atmospheric pressure, the organolithium compound being formed by reacting lithium with a hydrocarbon compound.  The catalyst may be prepared in a low-boiling polar or hydrocarbon solvent which is removed before use, and which is replaced by the high boiling hydrocarbon medium.  The Specification contains an extensive list of suitable catalysts. Exemplified catalysts are an adduct of dilithium-methyl-naphthalene, and a lithium-anthracene reaction. The polymer solvent may be an ether, thioether, or amine.  Specified hydrocarbon mediums are mineral oil e.g. petroleum light oil, petroleum jelly, hydrocarbon waxes, extended oils, dodecane, pentadecane, and eicosane.  The polymerization is effected in a normal hydrocarbon solvent or diluent.  The unquenched polymer solutions may be after-treated to introduce function groups such as -COOH, -SH, -OH, or halogen. The polymers are recovered, purified, and vulcanized by conventional techniques. Specified dienes are 1,3-butadiene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 2-methyl -1,3-pentadiene, 2,3-dimethyl-1,3-pentadiene, 3-methyl -1,3-pentadiene, 2-phenylbutadiene, and mixtures.  Comonomers may be styrene, acrylonitrile, methacrylonitrile, methyl acrylate vinyl acetate, vinyl chloride, 2-methyl-5-vinylpyridine, 2-vinyl pyridene, 3-vinyl pyridene, 3-vinyltoluene, 1-vinylnaphthalene, 2-vinylnaphthalene, and 4-vinyltoluene.
Patent GB-821477-A (GB)
Title: Silicone elastomers and processes for curing the same
IPC: C08K3/04
Filed: 1957-04-25
Abstract: A silicone rubber is made by incorporating in A silicone rubber is made by incorporating in a siloxane gum-carbon black stock dicumyl peroxide as the curing agent and heat-curing the resulting mixture. The siloxane gums specified contain alkyl, aryl and alkenyl radicals. The dicumyl peroxide is preferably used in recrystallized form or in finely-divided form deposited on an inert support.  Other fillers that may be added are silicone surface-coated silica, estersils, oxides of Zn, Fe, Al and Ti, zirconium silicate and calcium carbonate.  The compositions are preferably compounded by milling and then open-steam or hot-air cured with subsequent heat-ageing.  Prior to the addition of the curing agent, the gum stock and filler may be aged at room temperature or be pre-cured at 250 DEG  to 300 DEG  F. Examples are given including comparative ones in which rubbers made in the above manner are contrasted with those made with di-tertiary butyl p  peroxide as curing catalyst.  Specification 819,245 is referred to.
Patent GB-329483-A (GB)
Title: Improvements in apparatus for mixing air and pulverised coal applicable to other similar operations
IPC: F23K3/00
Filed: 1929-04-27
Abstract: 329,483. Robinson, G. H. April 27, 1929. Mixing solids with fluids in flow.-In apparatus for mixing powdered fuel with air applicable also to finely powdered material in general, the air or other gas passes through a Venturi tube i provided with an opening d through which a rotary wire brush c or like member having flexible arms forces the finely divided fuel or other material in the form of a spray into the Venturi tube. As shown, an obstruction h causes the wires or flexible arms to spring forward after being first held up. A door e which carries the projection h is adjusted by a worm gear to vary the width of the aperture. The area of the Venturi tube i may be regulated by forming one wall in two parts l, l' which overlap and are hinged to the casing at their outer ends, a screw operated member m moving them in and out. The speed of rotation of the brush depends on its diameter. Deflector plates may be provided in the inlet b to the cylinder.
Patent GB-132255-A (GB)
IPC: H01H50/88
Abstract: 132,255. Bjerregaard, J. J. July 13, 1917, [Convention date]. Electro-magnetic switches tripped mechanically. A short-time switch for staircase lighting &c. comprises a spindle i capable of axial movement in its bearings and carrying a contact segment n normally bridging the fixed contacts p, r, an armature f co-operating with the poles of an electromagnet l, and a toothed sector d adapted to engage with a pinion j on a shaft carrying a fly-wheel a. When one of the push-button switches t is operated, the electro-magnet is energized and the armature attracted, bringing the contact segment into engagement with the contacts r, s and completing the lighting-circuit. At the same time, the toothed sector is drawn across the pinion, causing the rapid rotation of the fly-wheel on which a pivoted centrifugal member c is mounted and drawn to the dotted-line position by centrifugal force. In the fully attracted position of the armature, a projection g thereon engages a projection h on one of the pole-pieces and displaces the spindle, thereby freeing the sector from the pinion. The switch is latched in the closed position against the action of a spring by a pivoted catch c which engages a projection k. After a certain time, when the speed of the fly-wheel falls off sufficiently, the centrifugal member returns and trips the catch and opens the switch.
Patent GB-543228-A (GB)
Title: Improvements in and relating to keyboards for electrical musical instruments
IPC: G10H1/32
Filed: 1940-08-21
Abstract: 543,228. Organs, pianofortes &c. combined with electrical musical instruments. HAMMOND INSTRUMENT CO. Aug. 21, 1940, Nos. 13279 and 13280. Convention dates, Sept. 5, 1939 and March 8, 1940. [Class 88 (ii)] An auxiliary keyboard 21 for addition to a conventional keyboard instrument, such as a piano or an organ, to enable an electrical musical instrument 36 to be played simultaneously with the playing of the conventional instrument, comprises a frame or casing 46, 47, 48 carrying playing keys 44, 43 corresponding in spacing and arrangement with the playing keys 41, 40 of a conventional keyboard, but shorter than such keys, and so disposed in relation to the rear of the casing that when the casing is positioned against the front rail 18 of a conventional keyboard the playing surface of the conventional keyboard and that of the auxiliary keyboard lie within the convenient playing span of a single hand. The auxiliary keyboard may be immovably secured to the piano as by the fixing of brackets 22 to the plank 24 by screws 25; or it may be adjustably connected to the underface of the plank 24 by thumb-screws 30, Fig. 13, engaging elongated slots in a longitudinally-disposed channel member 26 riveted to the two brackets 22, the slots being preferably sufficiently long to allow of the keyboard being moved along the front of the piano a distance corresponding to one octave of keys. A box 32 enclosing some of the parts of the electrical instrument may be arranged to counterbalance the keyboard 21 and thus facilitate the shifting of it along the piano, and the box may carry a knee-operable volume-control lever 34. The keys 43, 44 are supported and guided by springs 56, 60 and have a vertical movement limited by felt pieces 68, 70, and, when the keys are depressed, parts 50 carried by the keys actuate switches 72, 74. Pivoted stop tablets 76 serve to actuate switches 78, 80 giving various controls. In order that the player's thumb may conveniently engage that portion of a white key between two black ones the black keys 43 may be made narrower than the black keys of a conventional keyboard ; provision may also be made so that should two keys be depressed simultaneously only the lower in the musical scale will sound a note. Specifications 454,502 and 541,911, and U.S.A. Specification 2,253,782 are referred to.
Patent GB-504160-A (GB)
Title: Improvements in electric resistances and methods of making such resistances
IPC: H01B1/24
Filed: 1938-05-04
Abstract: 504,160. Resistance coatings. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 4, 1938. No. 13325. Convention date, May 7, 1937. [Class 37] A fixed resistance comprises a resistance layer applied to an insulating substratum, the layer consisting of a mixture of graphite and a condensed hydrocarbon which is not capable of being hardened is soluble in an organic solvent has aromatic nuclei and may contain oxygen bridges, the proportion by weight between the binder and the graphite lying between 3 : 1 and 1 : 3, and the temperature coefficient lying between +0À006 and -0À006 per ‹C. The binder may be cumaron resin, which is mixed with the graphite and ground in a ball mill with benzene. A small porcelain tube is dipped in the dispersion thus obtained and subsequently dried in the air and then heated for half-an-hour at 250‹ C. in a gas atmosphere of hydrogen and nitrogen to remove the solvent. Metal contacts are then applied to the ends of the tube and a protective layer of phenol resin is applied. Asphalt may be employed instead of cumaron resin as the binder, the process being similar except that the final heating is at 350‹ C. Finely divided insulating non-porous filling material such as soapstone may be added to the mixture to increase the specific resistance.
Patent GB-696713-A (GB)
Title: Improved control for the movement of the eyes of dolls and similar toys
IPC: A63H3/40
Filed: 1952-06-29
Abstract: 696,713. Dolls &c. RUIZ, A. S. June 5, 1951. [June 6, 1950] No. 13353/51. Class 132 (iii). The head of a doll or similar toy is movable relative to the body, and, as shown, the pivoted eyes of a doll have a counterweight rod 5 to which are attached cords 1, 8 passing respectively to a point 4 on the inside of the back of the doll and to a point 8a on a pivoted arm 10. The cords pass through eyelets 2 and when the doll's head is turned or the arm 10 is moved the eves are caused to move. In a modification Fig. 2 (not shown) a control cord passes out through an opening in the doll's back and has a stop thus permitting the cord to be controlled manually. A talking mechanism may be provided and the cord 1 may then be attached to the actuating member of the mechanism which is operated simultaneously with the opening or closing of the eyes.