baber/WOPTO huggingface dataset:
Patent GB-1517347-A (GB)
Title: Optical apparatus in which light can be projected to at least one image plane
IPC: G03G15/04
Filed: 1975-08-04
Abstract: 1517347 Electro-photographic projection printing XEROX CORP 4 Aug 1975 [5 Aug 1974] 32480/75 Heading G2A Images of both sides of a double-sided original 1 in an object plane are projected on to an image plane for copying. The original 1 is held between hinged transparent plates 2, 3 and illuminated on both sides by lamps 4, 5 energized one at a time. Light from the illuminated side is reflected into a lens system 8 which, with the aid of a mirror 9, forms an image on the surface of a rotating drum 6 with a photo-conductive surface. The drum 6 forms part of a conventional electro-photographic apparatus for producing copies on sheets fed to a bin 15. As shown in Fig. 2B, the original I in its holder 2, 3 is moved to the right during exposure, by means of a rack 17 and pinion 18. Lamp 4 is on, and light from the top of the original is reflected by mirror 7 into the lens system 8. The speed of movement of the original is related to the speed of drum 6. When the top side has been copied, lamp 4 is extinguished and lamp 5 is energized by operation of a limit switch, light from the underside of original 1 being reflected by mirror 10 into the lens system 8. The original is returned, producing a latent image of the original on the next portion of the surface of drum 6. The optical system orients the images such that pages of text (for example) have their lines running sequentially in the same direction. Arrangements may be made to copy both sides of the original on to opposite sides of a copy sheet, Figs. 4, 5 (not shown). Two simplex documents may be placed back to back and copied.
Patent GB-1218136-A (GB)
Title: Improvements in or relating to stabiliser compositions for vinyl chloride polymers
Inventor: PERRINS LYLE EUGENE
IPC: C08K9/08
Filed: 1968-07-08
Abstract: 1,218,136. Stabilizing PVC. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 June, 1969 [8 July, 1968], No. 32486/68. Heading C3P. PVC is stabilized with a composition obtained by coagulating an aqueous latex of an organic synthetic polymer in the presence of an aqueous suspension of a basic lead salt using as coagulant a water-soluble salt of an alkaline earth metal the amount of synthetic polymer in the latex being 20-80% of the combined weight of polymer and basic lead salt. In the example, polyethylene is used as the polymer. PVC and polystyrene are also mentioned. The lead salt is the tribasic sulphate, dibasic stearate or basic carbonate. Calcium formate is the preferred coagulant. Calcium and lead stearates and montan ester wax are also added to the PVC composition.
Patent GB-708238-A (GB)
Title: A magnetically operated table game apparatus
IPC: A63F7/06
Filed: 1952-12-23
Abstract: 708,238. Table games. DEPAUW, F. CDec. 23, 1952 [Sept. 22, 19521, No. 32567/52. Class 132(2) The figures 7 for magnetic table football are moved on the playing surface 1 by magnets 8 manipulated thereunder and are carried on small magnets 22 fixed at an inclined angle on a thin base-plate 23' of magnetically neutral material. Coinfreed mechanism is provided to move a goal assembly longitudinally of the playing surface through a lazy-tongs arrangement when a predetermined time has elapsed thus reducing the field of play so much as to make play impossible. Alternatively, Fig. 7, the coin-freed mechanism will raise the playing surface 35 up at one end through a rod 38 so that the surface is cut of range of the magnets manipulated under the base 37. In a further modification, Fig. 5, the magnets 8 are retracted against a spring 31 after an interval of time by the actuation of a Bowden cable 33 by the coin-freed mechanism 34.
Patent GB-301022-A (GB)
Title: Process for the production of calcined phosphates
IPC: C05B13/02
Filed: 1928-11-08
Abstract: 301,022. Kali-Chemie Akt.-Ges., (Assignees of Rhenania-Kunheim Verein Chemischer Fabriken Akt.-Ges.). Nov. 23, 1927, [Convention date]. Calcium and double phosphates.-The process of producing citrate-soluble phosphates by calcining crude phosphates in admixture with alkali carbonates or salts or magnesium compounds or mixtures thereof and silica, with or without the use of steam; is carried out in two stages, the first being effected at temperatures below the fusion point of the original mixture and being continued until the bulk of the fluorine has been driven out, and the decomposition being then completed at higher temperatures, whereby fusion at the higher temperature is avoided. In examples, a crude phosphate containing 4.12 per cent of fluorine as calcium fluoride is heated with sodium carbonate and quartz sand (a) in a reverberatory furnace at 900-950‹ C. for two hours without, or for one hour with, steam and then for half an hour at. 1150‹ C., (b) in a rotary furnace in which the temperature is maintained at 600‹ C. in the first quarter, 800-1000‹ C. in the two middle quarters, and 1150‹ C. in the last quarter; and a mixture of the phosphate with quartz sand, potassium sulphate, and calcium carbonate or with quartz sand and magnesium or magnesium-potassium sulphate is treated in a rotary furnace heated as above in the presence of steam. Specification 237,875 is referred to.
Patent GB-941246-A (GB)
Title: Toolholder for multiple punch presses
IPC: B21D28/12
Filed: 1961-09-12
Abstract: 941,246. Sub-press mechanisms. C. BEHRENS A.G. Sept. 12, 1961 [March 7, 1961], No. 32632/61. Heading B3W. A punch press including a C-shaped main frame has a subsidiary frame secured at its lower end to the lower limb of the main frame and is otherwise free, and a tool head supported by the upper end of the subsidiary frame in the gap of the main frame, so that the subsidiary frame is unaffected by deformations of the main frame. The machine comprises a main frame 1 and a C-shaped subsidiary frame 2 of which only the bottom limb is bolted to the main frame. The frame 2 carries pins 4 and 5 about which tool plates 6 and 7 can index. Each upper tool 14 has a head 15 which engages a recess 16 in the ram 8, which is operated by a rod 18 through a toggle 9. Alternatively the machine may be operated by an eccentric or by an hydraulic ram. The thrust on a stripper plate 11 is transmitted by the punch plate 7 and a pin 12 to the main frame.
Patent GB-604173-A (GB)
Title: Improvements in methods for preserving rubber
IPC: C08K5/00
Filed: 1945-12-03
Abstract: Ageing of rubber is prevented by the addition of a mixture of two substances which act respectively to prevent the absorption of oxygen and to deactivate the peroxides formed.  The rubber mix is vulcanized in the presence of the mixture, the ingredients of which may be added separately or as an intimate mixture prepared by grinding or melting, or mixed with an inert substance which facilitates dispersion.  The ingredients are used in the proportion of 1 1/2 -2:1.  The substance of the first type is selected from the secondary aromatic amine group, e.g., phenyl-B naphthylamine or the reaction product thereof with an aldehyde or ketone.  The substance of the second type is an imidazole, preferably mercapto-benzimidazole.
Patent GB-1284384-A (GB)
Title: Liquid atomizers
Inventor: CRESSWELL ALAN
IPC: F23D11/34
Filed: 1970-07-06
Abstract: 1284384 Spray producers TODD COMBUSTION Ltd 24 May 1971 [6 July 1970] 32661/ 70 Heading B2F [Also in Division F4] In an acoustic atomizer, preferably for a burner, an inner annular jet of fuel oil, expelled from duct 4, bounces radially outwardly off conical surface 28 of resonator cup 11 and is atomised by an outer annular jet of air issuing from outlet 9. The air is directed on to chamfer 27 and the interior of resonant cavity 12 is kept free of oil. Cup 11 is tapered at 35 to prevent the deposition of carbon. At higher loadings, the distance between the cup 11 and the tip of the nozzle may be increased by inserting spacer rings (34, Fig. 2, not shown) therebetween.
Patent GB-1058934-A (GB)
Title: Improvements in deflection rolls
Inventor: JUSTUS EDGAR J
IPC: D21G1/02
Filed: 1963-10-04
Abstract: 1,058,934. Rollers. BELOIT CORPORATION. Oct. 4, 1963, No.39239/63. Heading F2U, [Also in Division D2] A roller for use in paper making &c. machinery comprises a cylindrical shell 11 journalled by bearings 29, 30 about a fixed beam 26 through which project the connecting rods 33 of simple fluid-pressure servos 13 to engage pivoted slippers 31 or the like with the inner surface of the shell, so that the deflection and the nip pressure &c. of the roller can be controlled. Lubricant is fed to the inside of the roller shell 11 through a nozzle (38), Fig. 2 (not shown), the slippers &C (31) developing a film of lubricant over the roller surface. In a modification, the pivoted slippers (31) are replaced by rollers (44), Fig. 3 (not shown), at the ends of levers (42) urged towards the roller shell (11<SP>1</SP>) by servo connecting rods (37<SP>1</SP>). The servos 13. Fig. 1, are fed with air &c. supplied by a pump 14 through a pressure control valve 41, a pressure ratio control valve 15 and pipes 40. The pressure engaging the individual slippers 31 with the shell 11 may be controlled by pressure regulating valves in the pipes 40, or by making the servos 13 of different sizes, or by differential spacing of the servos. The roller 11 is illustrated in combination with an upper roller 10 in paper making &c. machinery, journalled at the mid-point (16), Fig. 2 (not shown), of levers (23) biased to engage the two rollers by air &C pressure fed from the control valve 15. Fig. 1, to two diaphragm servos 12.
Patent GB-211979-A (GB)
Title: Improvements in or relating to tyre-shaping machines
IPC: B29D30/44
Filed: 1922-12-02
Abstract: 211,979. Gautier, C. M. Dec. 2, 1922. Tyres, elastic, special apparatus for making.-In apparatus for shaping tyre covers, comprising a poweroperated expansible and contractible core, the operating-mechanism is automatically actuated when the core is in the expanded or in the contracted position, the controlling-means being operated by the core or a part moving therewith. The core segments 6 are fitted with tapped stems 7 engaging threaded rods 8 which project through the boss 9 of a casing 5. Bevel pinions 10 on the rods 8 are rotated, to expand or contract the core, when a clutch 34 on the driving-shaft 14 is moved into engagement with one or other of the pinions 32, 33. The clutch 34 is carried by a rod 35 fitted with tappet-arms 38, 39 and notched at 42 for engagement by a detent 41 when the clutch is in the neutral position. The arm 39 carries an adjustable tappet 46 which is engaged by the core 6 in its fully-expanded position to free the clutch 34 from the pinion 33. By pulling the handle 47, the clutch is moved into engagement with the other pinion 32 to contract the core. This contracting movement is arrested by abutment of a pin 40 with the arm 38. For correct assemblage of the tyre band A on the core, an axially-adjustable disc 21 is positioned along the pins 22 projecting from the casing 5 by means of bevel-gearing 23, 31 and an operating- handle 28. The core segments 6 are bridged by plates 16 fitted with spring-pressed guide-rods 17. Specification 202,719 is referred to.
Patent GB-951438-A (GB)
Title: Polyester compositions
IPC: C08J3/09
Filed: 1959-09-29
Abstract: A polyester is dissolved in a solvent of formula: <FORM:0951438/C3/1> where X is halogen or -NH2.  The polyester may be (a) (in the case in which X is halogen) a linear polyester of a dicarboxylic acid and a polymethylene glycol or (b) (in the case in which X is halogen or -NH2) such a linear polyester modified by a chain-terminator which is a monohydric polyalkylene glycol or a monohydric polyalkyl vinyl ether and possibly also modified by a chain-branching agent which is a polyhydric alcohol or an ester of a benzene polycarboxylic acid (see Specification 847,090).  In the example the polyesters used are polyethylene terephthalates which may be modified with ethoxypolyethylene glycol or a mixture of methoxypolyethylene glycol and pentaerythritol.  The solution, which may also contain plasticizers, pigments, dyes, anti-static agents or dyes, are useful in the manufacture of fibres, films and coating compositions.
Patent GB-1005401-A (GB)
Title: 3-aryl-3-pyrrolidinols and their preparation
Inventor: WU YAO HUA
IPC: C07D207/12
Filed: 1963-08-21
Abstract: The invention comprises compounds of formula <FORM:1005401/C2/1> where R2 and R5 represent H or an aliphatic hydrocarbon residue having 1-4 carbon atoms, at least one of R2 and R5 being a lower alkyl radical, and X may be a phenoxy, halophenoxy, phenyl, halophenyl or benzhydryloxy radical, or a benzyloxy radical having the structure <FORM:1005401/C2/2> where Z is halo or dihalo, or an alkyl or alkoxy radical having 1-4 carbon atoms, and their pharmaceutically acceptable acid addition salts, and the preparation thereof by hydrolysis or alcoholysis of the corresponding 1-acyl- or 1-carbalkoxy-compound, in the presence of a strong base.  Compounds where X represents a substituted benzyloxy or benzhydryloxy radical may be prepared by the reaction of the 1-acyl-or 1 - carbalkoxy - 3 - (hydroxyphenyl) - 3 -pyrrolidinol with the desired benzyl halide or benzhydryl halide in the presence of a strong base.  Therapeutic compositions in dosage unit form, which are useful as vasopressor-depressor agents and smooth muscle depressants and which may be administered orally or parenterally, contain compounds of the first formula above and a pharmaceutical carrier therefor.  Tablets, capsules, elixirs, solutions and suspensions are mentioned.
Patent GB-1402791-A (GB)
Title: Insect repellent and antifungal composition
IPC: A01N25/08
Filed: 1973-07-11
Abstract: 1402791 Pesticidal application of bromocinnamaldehyde G IZAWA T NISHIMURA and Y MIWA 11 July 1973 33107/73 Heading A5E An insect repellent and antifungal composition comprises α-bromocinnamaldehyde and a carrier. Carriers specified are volatile substances, hygroscopic substances and paints (e.g. p-dichlorobenzene, naphthalene, kaolin, silica gel, and antifungal paints), charcoal, paper. leather, rubber, plastics and fibres. Reference has been directed by the comptroller to Specifications 308507.
Patent GB-521500-A (GB)
Title: Improved electric flat iron for a support forming a current intake
IPC: D06F79/02
Filed: 1938-11-15
Abstract: 521,500. Hand irons. LOBSTEIN, J. Nov. 15, 1938, No. 33237. Convention date, Nov. 18, 1937. Addition to 501,073, [Group XI]. [Class 138 (ii)] [Also in Group XI] The handle of a flat iron consists of two symmetrical parts 35 connected together on arms 46 rigid with the sole by screws 41. Internal projections on the parts 35 engage in corresponding notches of the arms 46.
Patent GB-1499937-A (GB)
Title: Slitters and dust collectors therefor
IPC: B31B50/22
Filed: 1975-08-11
Abstract: 1499937 Slitting webs MOLINS MACHINE CO Inc 11 Aug 1975 [30 Sept 1974] 33359/75 Heading B4B [Also in Divisions F3-F4] A dust collector for use with a slitting machine, e.g. for cardboard webs, comprises an elongated housing having an elongated inlet 18, Fig. 2, which communicates with a suction manifold chamber 38 by partitions 20, 22... 36 each having a curved portion at one end terminating at the inlet and straight portions generally parallel to the plane of the inlet, the space between adjacent partitions communicating the chamber with only a portion of the cross-sectional area of the inlet . The chamber is releasably connected by a magnetic coupling 40, 46, Fig. 4 to a suction source. The slitter comprises blades 56 spacedly and adjustably mounted on a motor drive shaft 56 rotatably supported at its ends by frame members (52, 54) and a bristle faced anvil roll 62 is mounted on a shaft 64 so as to provide a slight interference between the periphery of blades 56 and the roll. A slitter having two or more sets of blades, each set co-operating with an anvil roll and dust collector may be provided.
Patent GB-301386-A (GB)
Title: Improvements in or relating to coke-ovens
IPC: C10B5/02
Filed: 1928-11-14
Abstract: 301,386. Leyh, E., (Assignees of Koppers Akt.-Ges., H.). Nov. 28, 1927, [Convention date]. Coke ovens.-In a coke oven of the kind in which adjacent heating-walls 10, 11 are connected by conduits such as the cross-over flues 12, two end to end regenerator sections 14, 15a are arranged beneath each oven, and are connected respectively to the two heating-walls. Each section communicates with the flues of the half wall immediately above it through ports 16, 17 and with the flues of the other half wall through an extension flue 18 or 19 and ports 21. The extension flues are arranged immediately above the regenerators, and cross one another in the brickwork above the partition wall 13. Each heating-flue is in communication with two regenerator chambers so that the oven can be fired by preheated lean gas. Passages for the supply of rich gas may also be fitted.
Patent GB-1439838-A (GB)
Title: Process for the preparation of diphenylamine and substituted derivatives thereof
IPC: C07C209/64
Filed: 1973-07-13
Abstract: 1439838 Diphenylamines IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Oct 1974 [13 July 1973] 33447/73 Heading C2C Diphenylamines and substituted derivatives thereof are prepared by passing in vapour form aniline, optionally substituted in the nucleus by not more than three substituents selected from C 1  to C 4  alkyl, chlorine and bromine, at from 300 to 600 C. over an alumina catalyst into which titanium has been incorporated by treatment with a titanium compound.
Patent GB-306222-A (GB)
Title: Improvements in types for printing initial letters
IPC: B41B1/02
Filed: 1927-12-10
Abstract: 306,222. Senior, E. Dec. 10, 1927. Types for printing initial letters with a scroll, flourich, or line have the scroll &c. formed in two or more parts one of which a may extend from the letter, and the other or others b, b<1> may be joined thereto when set up for printing. The parts b<1> may be in the form of dots, dashes, rules, or other ornamental matter so that the scroll &c. may be made sufficiently long to embrace any number of letters. The scroll may be wholly detached from the letter and may be built up of two or more parts.
Patent GB-1351481-A (GB)
Title: Spraying devices
IPC: F04F5/46
Filed: 1971-07-16
Abstract: 1351481 Spray producer M GARNIER 16 July 1971 [17 July 1970] 33479/71 Heading B2F A spray producer comprises an intake pipe for one fluid and a second pipe to carry a second fluid to the interior of an olive-shaped mass at the outlet orifice of the intake pipe. In the figure, air passes along pipe 1, and the fluid to be sprayed, e.g. water passes along tube 7 to axial channel 6 in olive-shaped mass 3. The water then flows through radial channels 8 1 , 8 2 , 8 3  to form a film along the surface of mass 3, breaking up info a fine spray one or two centimeters beyond the lip of the olive-shaped mass. Low pressures may successfully be used: 45 g/cm<SP>2</SP> for the air and 50 g/cm<SP>2</SP> for the water.
Patent GB-439389-A (GB)
Title: Improvements in and relating to electric battery lamps
IPC: F21W111/10
Filed: 1934-11-22
Abstract: 439,389. Electric-battery lamps. HAMMOND, W. C., 1600, Douglass Avenue, Kalamazoo, Michigan, U.S.A. Nov. 22, 1934, No. 33629. Convention date, Nov. 22, 1933. [Class 39 (ii)] An electric-battery lamp is provided with one cell which is fixed within the casing and a second cell movably mounted therein and adapted, on being moved, to effect the switching on and off of the lamp. In the example the cell 11 is fixed at one end of a tubular casing 10, the movable cell 12 being disposed at the other end and projecting therefrom, the projecting portion being enclosed by a sleeve 16. The carbon poles 13, 14 are directed towards one another and separated by a space containing the bulb 19 which is mounted in a reflector 24. The zinc shell of cell 11 is connected to the lamp cap casing by a metal strip 17, while a metal strip 18 secured to the carbon pole 14 of cell 12 terminates in a button-shaped end 20 adapted to be moved in or out of contact with the central contact 21 of the bulb upon movement of the cell 12. The movable contact 20 is surrounded bv an annular member 22 secured to the inner wall of the casing 10 to restrict the longitudinal or rotary movement of the cell 12 and its contact 20. The cells 11 and 12 are connected in series by a metal strip 23 secured to the carbon pole of cell 11 and making a sliding contact with the zinc shell of cell 12. The arrangement may be modified in order that cells of the type described in Specification 414,582, [Group XXXVI], may be used. In a further modification the lamp bulb is mounted at one end of a tubular casing, in contact with the carbon pole of a fixed cell, the relatively movable cell at the other end of the casing having a contact strip offset eccentrically from its central carbon pole and arranged to make contact with a similar contact strip secured to the zinc shell of the fixed cell when the movable cell is rotated.
Patent GB-911945-A (GB)
Title: Means for conserving heat in swimming pools
IPC: E04H4/10
Filed: 1959-04-29
Abstract: 911,945. Swimming baths. CARTER, B. R. April 29, 1959, No. 33730/61. Divided out of 909,238. Class 26. To reduce heat loss from the surface of the water in a swimming pool, a body of air is retained above it by a cover 12, which may be of transparent synthetic resin, supported by ropes, wires or cords, the cover edges being weighted down in the water, e.g. by a chain 15 in pocket 14, Fig. 1, or supported by an inflated tube 19, Fig. 2, provided at the edges of the cover 18 and weighted by a chain 20 in a pocket 21 of the tube. The cover may be formed by a number of sheets or sheets individually supported with their edges abutting.
Patent GB-1468269-A (GB)
Title: Hydrostatic transmission drive system
IPC: B62D11/04
Filed: 1974-03-21
Abstract: 1468269 Hydrostatic transmission control EATON CORP 21 March 1974 [26 Sept 1973] 33826/76 Divided out of 1468267 Heading F2W The subject matter of this Specification is identical with that described in Specification 1,468,267, but the claims are directed to reducing the output speed of the transmission when the vehicle brakes are actuated.
Patent GB-282661-A (GB)
Title: Improvements relating to apparatus for photographically recording sound, and for reproducing sound from a record thereof
IPC: G11B7/00
Filed: 1927-12-14
Abstract: 282,661. British Thomson-Houston Co., Ltd., (Assignees of Hoxie, C. A.). Dec. 22, 1926, [Convention date]. Optical ct<SP>p>pe<t>MtttS.-A slit device for use in recording or reproducing sound by the passage of a beam of light therethrough on to or through a photographic film is constructed with an opaque member having a wedge-shaped opening fitted with a transparent wedge-shaped member. Fig. 1 shows the device 7 applied to recording apparatus, such as described in Specification 180.296. wherein light from a source 2 is directed by a lens 3 on to a mirror 4 vibrated by the sound and reflecting the beam through a cylindrical lens 5 and the device 7 on to a film which moves at right-angles to the direction of vibration of the mirror. The device 7 is received in guides in the machine casing, and is constructed with two steel plates 10, 11, Fig. 3, bevelled at their abutting edges to enclose a wedge-shaped space in which is fitted, by sodium silicate cement 16, a quartz prism 18 of smaller angle than the space. The small end of the prism is ground off flush with a convex surface 14 formed on the plates 10, 11, which permits of adjustment close to the film. The base of the prism may be formed as a, convex surface to concentrate the beam. The prism may only fill part of the length of the wedge-shaped space, the remainder being filled by steel wedges 12.