baber/WOPTO huggingface dataset:
Patent GB-713531-A (GB)
Title: Improvements in compounding rubber
Inventor: HICKSON ROY
IPC: C08L21/00
Filed: 1951-04-11
Abstract: Synthetic rubber compositions are produced by incorporating humic acid and hexamethylene tetramine or a polymer of formaldehyde with unvulcanized synthetic rubber and reacting the humic acid therewith by heating the mixture.  Preferably the humic acid is added to an alkaline latex in solution in aqueous ammonia, sodium hydroxide or potassium hydroxide, co-precipitation then being effected by means of mineral acid, formic acid or acetic acid.  The hexamethylene tetramine or polymer of formaldehyde may be incorporated simultaneously with, or subsequent to, the humic acid.  The synthetic rubber may be a chloroprene polymer, or a copolymer of butadiene with styrene or acrylonitrile.  From 10 to 110 parts of humic acid may be added to 100 parts of rubber and 5 to 25 per cent. of methylene donor by weight of the humic acid utilized.  Carbon black may also be added.ALSO:Rubber compositions are produced by incorporating humic acid and hexamethylene tetramine or a polymer of formaldehyde with unvulcanized rubber and reacting the humic acid therewith by heating the mixture.  Preferably the humic acid is added in solution in aqueous ammonia, sodium hydroxide or potassium hydroxide coprecipitating then being effected by means of mineral acid, formic acid or acetic acid.  The hexamethylene tetramine or polymer of formaldehyde may be incorporated simultaneously with, or subsequent to, the humic acid.  The term "rubber" includes natural rubber, chloroprene polymers, and copolymers of butadiene with styrene or acrylonitrile.  From 10 to 110 parts of humic acid may be added to 100 parts of rubber and 5 to 25 per cent. of methylene donor by weight of the humic acid utilized.  Carbon black may also be added.
Patent GB-565852-A (GB)
Title: Improvements in or relating to rotary number indicators
IPC: G06M1/24
Filed: 1943-05-26
Abstract: 565,852. Rotary indicators. STANDARD TELEPHONES & CABLES, Ltd., MARTIN, N. H., and SMITH, C. P. May 26, 1943, No. 8394. [Class 40 (i)] [Also in Group XIX] In a rotary indicator of the kind in which one or more wheels bearing numbers or other characters are stepped round opposite a display window by electrical or other means, each wheel carries a detachable display member in the form of a flexible strip 6 which has a series of slots 8 foi engaging corresponding teeth 7 on the wheel 4, one tooth 9 being undercut to form a hook for receiving the forward end slot 11 and ar open slot 12 being provided at the rear end of the strip to allow this end to be tucked under the forward end. The characters may be engraved, stamped or printed on the strip or may be produced photographically on a strip of transparent film. The invention may be applied to the electricallyoperated number indicators described in Specifications 538,723 and 542,146.
Patent GB-827514-A (GB)
Title: Improvements in or relating to liquid fuel sprayers of burners for internal combustion engines
Inventor: SCOTT ALEXANDER
IPC: F23D11/28
Filed: 1957-03-14
Abstract: 827,514. Spray burners. BRISTOL AERO-ENGINES Ltd. March 14, 1958 [March 14, 1957], No. 8519/57. Class 75(1) A liquid fuel atomizer 13 is secured in a socket 12 in the head 11 of a burner by means of a soldered screw-threaded joint. An air shroud 14 may also be secured to the head 11 by a soldered screw-threaded joint. The joint is made by screwing the parts together, laying solder on the upper end of the joint and heating the joint by means of an induction coil so that the solder runs down the joint. Alternatively the solder may be applied to the screw threads before screwing the parts together. The final tightening tongue may be applied to the joint whilst the solder is still molten. A cooling medium such as air or a cooling and reducing medium such as cracked ammonia is preferably passed through the atomizer during the heating process. The atomizer 13 comprises three plates 17, 18, 19 spigoted into each other, the front orifice plate 17 being threaded and soldered into the socket 12. The primary inlet plate 19 seats on an annulus 21 on the head 11 and forms a fuel chamber 19<SP>1</SP> fed by a pilot passage 15 in the head. Pilot fuel passes from the chamber 19<SP>1</SP> outwardly through passages to an annular chamber 23 between the inlet plate 19 and the rear orifice plate 18 and then tangentially inwards to a conical chamber 25 in the rear orifice plate 18. A main fuel supply is delivered by a bifurcated passage 16 in the head 11 to a gallery 31 therein and then passes over a weir 30 formed by a flange on the rear orifice plate 18 to a second gallery 32 formed in the front orifice plate 17; it then passes inwardly through tangential passages 34 to the space between the conical chamber 25 and the front orifice plate 17.
Patent GB-141500-A (GB)
Title: Improvements in flushing devices for water-closets
IPC: E03D1/12
Filed: 1919-04-05
Abstract: 141,500. Vittori, C. April 5, 1919. Valve and siphon discharge water-waste preventers.-The valve 16 is raised against the action of a tension spring 14 secured to a pin 11, and has guides 21. A strainer may be fitted in the inlet to the siphon.
Patent GB-313999-A (GB)
Title: Process for the manufacture of finely divided ferric oxide
IPC: C01G49/06
Filed: 1928-03-21
Abstract: 313,999. Caxpmael, A., (I. G. Farbenin. dustrie Akt.-Ges.). March 21, 1928. Addition to 298,926. Ferric oxide.--In a modification of the process according to the parent Specification ferric oxide in a finely-divided form is obtained by heating ferric hydroxide in the presence of an alkalineacting agent to a temperature above 100' C., under an increased pressure. A solution of ferric salt, e.g. ferric chloride, may be heated with an excess of a basic material, e.g. lime, magnesia, or sodium carbonate in an autoclave at a temperature between 100-150‹ C., and the product filtered, washed and dried. The oxides range from yellowish-red to dark violet in colour, and exhibit a high colouring power and covering capacity. Examples are given.
Patent GB-1095531-A (GB)
IPC: G11B5/265
Filed: 1966-03-03
Abstract: 1,095,531. Magnetic recording and playback. RADIO CORPORATION OF AMERICA. March 1, 1966 [March 18, 1965], No. 8862/66. Heading G5R. Read head magnetic cores R3 are embedded in a read head block R with their air gaps extending along a read gap line ; a write head block W is similarly constructed, one of the blocks (R as shown) having a mounting surface normal to its gap line permanently affixed to a support 30, 32 and the other block having a similar mounting surface releasably affixed (by a bolt 34 as shown) to the support 30, 32; an elongated fulcrum strip F is centrally disposed between the blocks and extends in a direction normal to the read and write gap lines, and adjustable means (bolts 40, 42 as shown) are provided at the ends of the blocks remote from the fulcrum strip F for compressing the blocks against the fulcrum strip and enabling parallelism between the read and write gap lines to be established. A notch 31 provides slight flexibility of the support 30, 32 which is secured to a second similar support 20, 22 so that azimuth adjustment of the head assembly may be effected by means of a differential screw arrangement 24.
Patent GB-1173698-A (GB)
Title: Improvements in or relating to Disc Brake Assemblies.
IPC: F16D65/092
Filed: 1968-02-23
Abstract: 1,173,698. Disc brakes. ERNST HEINKEL A.G. 23 Feb., 1968 [9 March, 1987], No. 8862/68. Heading F2E. In a disc brake assembly of the type in which a brake pad is bonded or otherwise secured to a backing plate member which is slidably mounted by means of holes 5, 6 on two bolts 2, 3 screwed into a non-rotatable part. 1 of the assembly, the holes in the backing plate member 4 are enlarged and the spacing d2 between the holes is less than the spacing a1 between the portions of the bolts on which the backing plate member 4 is located. When the brake pad 8 and its associated backing plate member 4 is urged into engagement with the rotating brake disc 9 by a piston and cylinder device 7, 7A the backing plate member 4 is moved in the direction of the arrow so that the portion 2A of the bolt 2 bends slightly and resiliently to the left with a result that the brake pad 8 is pulled by the brake disc 9 instead of being pushed so that no brake squeal occurs. In the event of emergency braking taking place the resilient bending of the portion 2A is sufficient to bend the portion 2A before its elastic limit is reached so that both of the bolts 2 and 3 absorb the peripheral force acting on the brake pad 8 and the danger of overloading and fracture of one of the bolts, 2, 3 is avoided. The brake pad 8 is shaped so as to surround the bolts 2, 3 partially as shown in Figs. 1 and 2.
Patent GB-992544-A (GB)
Title: Aircraft receiver for use in decoding pulse coded beam signals
IPC: G01S1/64
Filed: 1961-05-01
Abstract: 992,544. Radio navigation CUTLERHAMMER Inc. May 1, 1961 [May 6, 1960], No. 9832/64. Divided out of 992,543. Drawings to Specification. Heading H4D. The subject-matter is also disclosed in Specification 992,543 the claims being directed to the receiver angle decoding means. Specification 940,509 also is referred to.
Patent GB-568786-A (GB)
Title: A process for the manufacture of composite metal articles
IPC: C23C20/00
Filed: 1942-07-01
Abstract: 568,786. Coating and consolidating metals and alloys. JONES, W. D. July 1, 1942, No. 9044. [Classes 82 (i) and 82 (ii)] In the manufacture of composite metal articles, a mixture of reducible metal compound, e.g. oxides in powder form, is applied to a metal backing and is heated in the presence of a reducing agent to such a temperature that the compounds are reduced to metal and the metal particles are sintered to form a porous mass, which may be an alloy, bonded to the metal backing. The heating may be carried out in two stages, in the first of which the compounds are reduced to metal and in the second in which the sintering and bonding take place. Abrasive material may be mixed with the compounds and the composite article produced may be subsequently impregnated with pore-filling materials such as oils, or a low melting point metal or alloy, or a de-icing fluid. The mixture of compounds may be disposed between two metal backings to produce a composite article and a laminated structure may be built up from a number of alternating layers of powder and backing. In an example, a mixture of iron oxide and nickel oxide may be applied to a steel, nickel or copper backing and heated first to 475-575‹ C. in hydrogen and then at 980-1100‹ C. to produce an ironnickel alloy coating. Fluxes such as sodium fluoride, cryolite, borax, &c. and reducible compounds such as titanium hydride, to facilitate the reduction, may be added to the compounds before reduction as well as catalysts. The compounds may be mixed with a binder and sprayed on the backings, and'a solid reducing agent such as carbon may be used when it is also mixed with the powders. Specifications 567,970 and 568,294 are referred to.
Patent GB-924993-A (GB)
Title: Improvements of and relating to photo-electric scanners for punched tapes
IPC: H04L17/14
Filed: 1960-03-15
Abstract: 924,993. Sensing punched-tapes. O. VIERLING. March 15, 1960 [March 28, 1959], No. 9064/60. Class 106 (1). Punched tape 4, Fig. 1, is sensed photoelectrically in motion and column-by-column by a rotating drum 7 having a slot 13 for each column position which co-operates with a stationary perforated mask 5 to present each position of a column in turn to the photo-cell 3. The drum makes a revolution to sense each column of the tape and the line of holes 10a, 10b in the mask 5 may be inclined to compensate for the movement of the tape. Light from lamp 1 passes through lenses 2, 2<SP>1</SP>, through the holes in the tape column being sensed, through holes 10a, 10b and lens 22<SP>11</SP>, through one of the slots 13, a slotted plate 6, and a final lens 2<SP>111</SP> to photo-cell 3. Instead of inclining the line of holes 10a, 10b the lens 2<SP>11</SP> may be set at an angle to achieve the same result. The slots 13, shown in Fig. 2, are of parallelogram form the end of one slot and the beginning of the next being on the same inclined line. This inclination is the same as the inclination of holes 10a, 10b compensating for the movement of the tape during a rotation of the drum. There are seven slots, the first receives light passing beneath the tape so as to produce a start pulse at the beginning of a column read out. The next six slots allow light from the six column positions of the tape to pass in turn to the photo-cell. In practice, the slots are spaced to exclude the sprocket holes. After the uppermost position has been sensed there is a blank portion of the drum giving a space before the sensing of the next column. Instead of providing a start pulse slot, the drum may be completely interrupted between column-sensing positions. In another form, Fig. 4, the slots 13 are all in the same angular position of the drum and there are six photo-cells 3 so that the positions of a column are read simultaneously when the coil 28 produces a timing pulse from the passage of magnet 29. The lamp may be associated with means which gives a warning when the filament breaks. The tape is fed through the machine by a spool consisting of a number of vertical rods arranged in a circle, the end of the tape passing between the rods and gripped thereby as the spool rotates.
Patent GB-1307936-A (GB)
Title: Catalytic oxidation of propylene or acrolein
IPC: C07C45/35
Filed: 1970-02-25
Abstract: 1307936 Oxidation of propylene DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 25 Feb 1970 [4 March 1969] 9075/70 Heading C2C Acrolein or acrylic acid is prepared by oxidizing propylene with air or oxygen in the presence of an inert gas in a fixed bed reactor with oxidation catalysts, e.g. oxides of bismuth, phosphorus or molybdenum, at an elevated temperature and wherein the reaction gases issuing from the catalyst bed are chilled to a temperature of from 50‹ to 100‹ C. below their ignition temperature by a spray .of inert liquid. The gas inert to the reactants may be steam, and suitable cooling liquids are water, aliphatic or alicyclic hydrocarbons, aromatic or heterocyclic compounds, ketones or aldehydes.
Patent GB-703820-A (GB)
Title: Sealing devices for closure members
IPC: C10B25/16
Filed: 1952-04-09
Abstract: 703,820. Joint-making packing. SULZER FRERES SOC. ANON. April 9, 1952 [May 8, 1951], No. 9138/52. Class 122 (3) The joint between a closure member, such as a cover 1, and its seating frame 3 is sealed by means of one or more inflatable flexible-walled tubes 8 which, when inflated, press against a surface 9 on the cover and a surface 10 on the frame 3, the tube or tubes 8 being approximately oval in cross-section when deflated and so arranged that the sealing pressure is exerted by the flatter sides thereof. The tubes 8 are of heat-resistant steel and are arranged one above the other in a trough in the frame 3 which carries clamps 6 to hold the. cover 1 in the closed position.
Patent GB-1298752-A (GB)
Title: Photographic processing method
Inventor: BARD CHARLETON CORDERY
IPC: G03C7/00
Filed: 1970-02-26
Abstract: 1298752 Photographic reversal processing; foggants EASTMAN KODAK CO 26 Feb 1970 [3 March 1969] 9254/70 Heading G2C Unexposed photographic silver halide is fogged by treatment with an aqueous solution containing stannous ions chelated by an organo phosphonic acid chelating agent. An exposed photographic silver halide material may be reversal processed by treatment with a first developer to form a negative silver image, fogging the residual silver halide and developing with a second developer, the chelated stannous salt being present in a fogging solution used before the second development or in the second developer. The material may be black-and-white in which case the negative silver image is bleached out prior to the second development, or it may be a colour material containing couplers or the couplers may be present in the colour developer. Stannous salts are the chloride, bromide, fluoride, acetate, sulphate and tartrate and the chelating agents specified are those of the formulae:- where R is alkyl, aryl, aralkyl, alicyclic or heterocyclic group which may be substituted, R 1  is hydrogen, alkyl, aryl, aralkyl, alicyclic or heterocyclic which may be substituted or -PO 3 M 2 , R 2  is hydrogen, -OH, alkyl substituted alkyl or -PO 3 M 2  and M is hydrogen or a cation which imparts water-solubility.
Patent GB-845353-A (GB)
Title: Liquid cooled dynamo-electric machine
IPC: H02K9/19
Filed: 1959-03-18
Abstract: 845,353. Cooling dynamo-electric machines. EATON MANUFACTURING CO. March 18, 1959 [April 14, 1958], No. 9328/59. Class 35. [Also in Group XXVI] Cavitation is prevented in a liquid-cooled eddy current dynamometer or brake by increasing the pressure in the machine housing by the use of a restricted outlet orifice (not shown). The machine has a smooth eddy-current rotor 40 and a stator having teeth 78, 80 excited by coil 88. If water is used as coolant seals 62, 64 (see Group XXVI) are provided to protect the bearings, but if oil is used a leak to the bearings is permitted. Cooling liquid enters an annular passage 93 through inlet 92 and its pressure is further raised before it passes to the working air-gap by pumping blades 97 on the rotor. After use it leaves by passage 95 and goes to waste or is cooled and recirculated. The restricted orifice outlet may take the form of a temperature or pressure-responsive valve.
Patent GB-513208-A (GB)
Title: Improvements relating to mincing, shredding and like machines
IPC: A47J43/08
Filed: 1938-03-26
Abstract: 513,208. Grinding &c. attachments. NEWNHAM, J. G. March 26, 1938, No. 9384. [Class 60] A grinding, polishing or buffing attachment for :a mincing, shredding or like machine comprises a shaft 1 having secured thereon at one end a grinding &c. disc 10, and having at its other end a head 2 in which is a slot 3 to receive a dog on the end of the conveyer screw &c. of the mincer. 'The shaft runs in a sleeve 4 having a flange 5 adapted to be secured 'to the mincer by the threaded ring 6 used to hold the apertured plate of the mincer, and notches 7 in the flange engage complementary lugs on the mincer. The shaft 1 has therein an axial cavity 8, which may be' screw threaded, to receive the screwed spigot on the conveyer screw. The head 2 runs in a recess 13 in the sleeve 4.
Patent GB-277398-A (GB)
Title: Improvements in and relating to the production of quinone derivatives
IPC: C09B9/00
Filed: 1926-04-09
Abstract: 277,398. Wylam, B., Harris, J. E. G., Drescher, H. A. E., Thomas, J., and Scottish Dyes, Ltd. April 9, 1926. Sulphuric esters; leuco compounds of vat dyes, esters of.-Quinones, including vat dyestuffs such as those of the indigo, thioindigo, and anthraquinone series, are converted into soluble derivatives by interaction with a metal, a tertiary base, a. substance which in the presence of a tertiary base yields a sulphuric anhydride derivative of the base (such as sulphuric anhydride, oleum, chlorsulphonic acid, or alkyl chlorsulphonates), and an ''assistant" which consists of the anhydride or imide of phthalic or succinic acid, or an organic acyl chloride such as phosgene. ethyl chloroformate, acetyl chloride, benzoyl chloride, or p-toluenesulphonic chloride. The reagents may be added in any order and the reaction may be effected in an inert atmosphere or in vacuo. The. products are similar to those described for example in Specifications 247,787, 251.491. 261,139. and 274,156. If the quinone is treated first with the metal, tertiary base, and assistant, an intermediate compound may be produced and can sometimes be isolated: on further treatment with the sulphuric anhydride, chlorsulphonic acid. &c., the stable water-soluble derivatives are obtained. The products obtained from vat dyestuffs may be used for dyeing and printing by the processes described for instance in Specification 247,787. According to examples, the following compounds are employed :-as vat dyestuffs, dimethoxydibenzanthrone, indigo, thioindigo, and 5 : 5<1>-dichlor-6 : 6<1>-dimethylthioindigo; as "assistants," phthalic anhydride, phthalimide, acetyl chloride, benzoyl chloride, p-toluenesulphonic chloride, carbonyl chloride, and chloroformic ester; as compounds yielding sulphur trioxide are mentioned chlorsulphonic acid, methyl chlorsulphonate, and sulphur trioxide ; in each example pyridine is used as the tertiary base and zinc or iron as the metal.
Patent GB-1185283-A (GB)
Title: Copolymers and process for their manufacture
IPC: C08F2/22
Filed: 1968-02-27
Abstract: 1,185,283. Artificial blood vessels. CIBA Ltd. 27 Feb., 1968 [1 March, 1967], No. 9478/68. Heading A5R. [Also in Divisions C3, D1 and D2] Artificial blood vessels are provided with antithrombogenic coatings by coating the inner surface of the blood vessel with a solution in an organic solvent of an amphoteric copolymer, allowing the solvent to evaporate, and then bringing the coating into prolonged contact with an aqueous solution of heparin, said amphoteric copolymer being the product obtained by copolymerising (a) at least one amino-ester or amino-amide monomer of the formula in which A is a C 2 -C 6  hydrocarbon group and the hetero atoms attached thereto are not attached to the same C atom of A, R 1  and R 2  are unsubstituted or substituted C 1 -C 6  hydrocarbon residues, or together with the attached N atom form a heterocyclic ring, and n and p each is 1 or 2, (b) at least one copolymerisable ethylenically unsaturated acid and (c) at least one water-insoluble, neutral copolymerisable monomer, in proportions (referred to the total weight of the monomers) of 15-30% component (a) the quantity of component (b) needed to neutralise component (a) within the limits of +15 stoichiometric equivalents %, and component (c) to a total of 100%.
Patent GB-548980-A (GB)
Title: Improvements in or relating to sliding and folding doors, partitions and the like
IPC: E05F15/10
Filed: 1941-07-25
Abstract: 548,980. Sliding and folding doors. EDUCATIONAL SUPPLY ASSOCIATION, Ltd.,and LEONARD, J. W. July 25, 1941, No. 9485. [Class 65 (i)] A sliding and folding door d is operated by one or more electric motors e mounted on the end posts' a, b and controlled by switches f which are automatically actuated to stop the motor, when the door is nearly fully open, by slidable spring-pressed rods l which engage each other at n and move cams o to depress switch rods g. Specification 512,135 is referred to.
Patent GB-863347-A (GB)
Title: Method for producing cylinder liners for diesel and other engines
IPC: C23C4/08
Filed: 1959-03-19
Abstract: A cylinder liner for a diesel or other internal combustion engine is made by boring out a liner blank, cutting a thread internally on the blank, blasting the thread with carborundum to polish it, spraying a layer of molybdenum on to the thread to a thickness insufficient to fill the thread, spraying a layer of chromium on to the molybedum also to a thickness insufficient to fill the thread, heating the liner to 145 DEG C., and then spraying a layer of carbon steel on to the chromium whilst at said temperature, the steel being of sufficient thickness completely to fill the thread and build up sufficient steel on top of the thread to permit subsequent boring out to the desired diameter. Preferably, the liner is rotated during coating, and the spraying is effected from two directions in order to cover both surfaces of the thread.