baber/WOPTO huggingface dataset:
Patent GB-960803-A (GB)
Title: Stable test papers and a process for the production thereof
IPC: G01N31/22
Filed: 1963-03-01
Abstract: A chemical test-paper comprises an absorbent paper impregnated with one or more re-agents sealed between two synthetic resin foils or between one synthetic resin foil and a resin coated paper, at least one edge of the absorbent paper being free of synthetic resin.  The foils may be of any water-insoluble synthetic resin such as polyvinyl chloride, polyterephthalic acid esters, polyethylene coated polyterephthalic acid esters, polypropylene and polyamides and the foils may be perforated.  The paper is sealed in the foils by heat, e.g. by heated rollers or by high frequency welding.  Multi-test papers may be made by sealing several spaced strips, impregnated with different reagents, between the foils and coloured strips for comparative purposes may also be incorporated.  The examples describe (1) a test paper for detecting glucose comprising filter paper impregnated with a solution of o-toluidine, peroxidase, glucose oxidase, tartrazine and fatty acid polyethylene glycol ester in aqueous alcohol; (2) a multi-test strip comprising (a) a strip as in (1), (b) a strip impregnated with an aqueous alcoholic solution of citric acid, trisodium citrate, dioctyl sodium sulphosuccinate and tetrabromo-phenolphthalein for testing protein, and (c) a strip impregnated with methanolic bromothymol blue, phenolphthalein and methyl red for pH determination; and (3) a test strip for testing nitrites comprising (a) a strip of filter paper impregnated with a -naphthyl ammonium oxalate (containing 1 % 2:6-di-t-butyl-4-methylphenol), sulphanilamide and oxalic acid in acetone/methanol medium and comparative colour strips impregnated respectively with (b) methanolic tetraiodofluorescein sodium salt, 1-aminobenzene-4-sulphonic acid-2-hydroxynaphthalene-6-sulphonic acid sodium salt and (c) methanolic tetraiodofluorescein sodium salt only. Specifications 867,192, 888,039 and German Specifications 909,504 and 1,094,017 are referred to.
Patent GB-288803-A (GB)
Title: Improvements in or relating to mountings for machine guns
IPC: B64D7/02
Filed: 1927-03-26
Abstract: 288,803. Birmingham Small Arms Co., Ltd., and Norman, G. March 26, 1927. Mountings for use on aircraft. - Relates to machine-gun mountings of the ring type as used on aircraft, and consists in supporting the U- shaped elevating-arm 6 by struts 1 hinged on each side of the ring 2 and slidably attached to swivel joints 3 on the arm. The struts are so shaped that they protrude only slightly above the arm in its lowered position. The struts shown in Fig. 4 are double-sided, engaging trunnions 4 on each side of the arm, and provided with holes 10 for the engagement of the elevating locking-bolts 8, 9. These bolts are moved in opposite directions for locking and unlocking by a bush 13 adapted to slide in the hollow arm and engaging inclined slots 11 in the bolts. The sleeve is held in the locking position shown by a spring-controlled bellcrank lever 15 acting through a rod 14, and is released to unlock the bolts by a cable 18 operated by the gunner.
Patent GB-491737-A (GB)
Title: Improvements in non-refillable bottle stoppers
IPC: B65D49/06
Filed: 1937-03-22
Abstract: 491,737. Non-refillable bottles. CONTAINER FITMENTS, Inc. March 22, 1937, No. 8394. Convention date, Dec. 23, 1936. [Class 125 (i)] A non-refillable bottle comprises a bottle neck having an inwardly extending shoulder 12, Fig. 1, a non-refillable stopper device having an outward concavity adjacent to and with a flange 22 enveloping the shoulder, and a locking member 60 conformed to the cavity in the stopper to prevent distortion or disengagement of the stopper. A casing 10 is provided with a frusto-conical lip 16 bent downwardly. A resilient washer 16 serves as a seat for a buoyant ball valve 19. A weight 20 presses on the ball 19. Preferably the side walls of the casing 10 are reduced at A, B, C, Fig. 7, forming channels 24, 25, 26 to accommodate uprights 31, Fig. 8, which act as guides to the ball and weight. A member 44, Fig. 1, holds the uprights 31 in place and acts as a baffle. The parts are assembled and a top member 60, Fig. 1, is inserted friction tight. The assembly is then placed in a bottle neck and pressed or spun against a shoulder 65 and ledge 12. The stopper construction is assembled after the bottle is filled. The bottle is closed by a screw cap 70. Alternatively the member 60 might itself be closed by a screw cap. In a modification, Fig. 10. the casing 10 is as before and guides 33 somewhat similar to the guides 31, the difference residing in a baffle 82, stud 84, and disc 86. In a further modification, Fig. 17, the casing 10 is of two diameters with a shoulder 93 to support a modified baffle. The guides for the valve are formed by making incisions in a band to form tongues 101, 102 &c. the weight 104 above the valve 19 is also modified, as shown.
Patent GB-845042-A (GB)
Title: Improvements in or relating to floor polishers
Inventor: KILNER STANLEY RICHARD
IPC: A47L11/16
Filed: 1958-03-17
Abstract: 845,042. Floor polishers. BRIDGES & CO. Ltd., S. N. Feb. 23, 1959 [March 17, 1958], No. 8424/58. Class 138(1). A floor polisher comprises a casing 1 with one or more rotatable brushes 2, means 4, 6 for detachably connecting an electrical hand drill 5 to the casing 1 and a driving element 8 engaged by the drill chuck and located within the housing 1 to drive the brush or brushes 2. The drill 5 is clamped to the casing by a split clamped boss 4 and the driving element 8 has a shaft gripped by the chuck and drives the brushes by frictional contact. One brush may be pivoted and spring loaded against the other and a lambs wood polishing mop may be press-studded over the brushes.
Patent GB-112380-A (GB)
Title: Improvements in or relating to the Recovery of Thorium as Pyro-phosphate.
IPC: C22B60/02
Filed: 1917-06-14
Abstract: 112,380. Welsbach Co., (Assignees of Goltz, M. A.). Feb. 28, 1917, [Convention date]. Thorium pyrophosphate.-The product obtained by decomposing monazite sand with sulphuric acid is heated to a sufficient degree to convert some or all of the free phosphoric acid into pyrophosphoric acid. On treating the mass with water, a precipitate of thorium pyrophosphate is obtained.
Patent GB-576265-A (GB)
Title: Improvements in optical projection apparatus
IPC: G03B21/06
Filed: 1944-05-05
Abstract: 576,265. Episcopes. KNOTT, C. W. May 5, 1944, No. 8550. Drawings to Specification. [Class 97 (i)] An episcope is provided with a mirror forming part of the projection system and contained in a casing movably mounted on the lamp casing so that it may be collapsed into it for packing. The invention is described as applied to the episcope forming the subject of Specification 576,822.
Patent GB-1378457-A (GB)
Title: Triazolylbenzophenones
IPC: C07D249/08
Filed: 1973-03-14
Abstract: 1378457 Triazolylbenzophenones UPJOHN CO 14 March 1973 [7 Jan 1972] 8555/73 Divided out of 1374822 Heading C2C Compounds of the general formula (R 1 =H, C 1-3  alkyl, cyclopropyl; R 2-5 R=H, F, Cl, Br, CF 3 , NO 2 , CN, NH 2 , C 1-3  alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl or alkanoylamino, di-(C 1-3  alkyl)amino; R 6 =H, C 1-5  alkyl; R 7 =C 1-5  alkyl; or NR 6 R 7  = pyrrolidino, piperidino, morpholino or hexamethyleneimino) and their acid addition salts are prepared by reacting a corresponding halomethyl compound with R 6 R 7 NH, optionally followed by salt formation. The above compounds are sedatives, tranquillisers and muscle relaxants, and may be administered in the form of pharmaceutical and veterinary preparations and food premixes containing them in association with a carrier.
Patent GB-813749-A (GB)
Title: Improvements in or relating to collapsible tents or shelters
IPC: E04H15/00
Filed: 1956-03-19
Abstract: 813,749. Tents. SILVER & EDGINGTON Ltd., [trading as EDGINGTON (SILVER & EDGINGTON Ltd.), B.], and HYDE, C. May 17, 1957 [March 19, 1956], No. 8557/56. Class 20(1) A collapsible tent comprises a number of U-shaped frames having the free extremities of their limbs secured in juxtaposition and is characterized by the U- shaped elements being made in separate parts joined together by resilient elements. The U-shaped elements are made from three separate rods or tubes 10, 11 and 12 joined together by resilient elements 13 and 14 made from rubber or plastic sleeves. The free ends of the U-shaped members are held together by sector-shaped fabric pockets 15 and 16 which may or may not be permanently secured to these ends. A fabric cover extends over the U-shaped members either to leave an opening with valance 32 and to form a ground sheet 31 or to form a complete cover with a flap 31, Fig. 7 (not shown). Collapsible bracing struts 19, 20 hold the tent in the open position and further bracing struts 25, 26 are provided across the resilient elements. The rods are formed from wood or metal and may be bowed outwardly.
Patent GB-1210941-A (GB)
Title: Improvements in or relating to pressure fluid operating actuators
Inventor: SOUTHALL JOHN NORMAN
IPC: F16K31/12
Filed: 1968-02-22
Abstract: 1,210,941. Rotary positive-displacement fluid-motors. SERCK INDUSTRIES Ltd. Feb.18, 1969 [Feb.22, 1968] No.8635/68. Heading F1F. [Also in Division F2] A pneumatic actuator for a semi-rotary shut-off valve has a housing 1 made of a thermosetting resin e.g. glass-reinforced polyester-resin, and an aluminium vane 7 with a steel-cored hub 6, leakage being minimized by a rubber lining 8, which may define a double wiper-seal at the outer edge, Figs. 3 and 4 (not shown). A spool-valve 11 controls the flow of compressed air through ducts 13. Metal caps 14 engage with stops 12. Alternatively, the housing is made of metal and lined internally with rubber and the vane is made of glass-reinforced polyester-resin.
Patent GB-1487985-A (GB)
Title: Belt type photosensitive member assembly for electrophotographic apparatus
IPC: G03G21/00
Filed: 1975-03-03
Abstract: 1487985 Mounting removable electrophotographic member MINOLTA CAMERA KK 3 March 1975 [7 March 1974] 8792/75 Heading G2H An endless belt photo-conductive member 22 is mounted on rollers by triple-section telescopic rails 10, 12, 14, so that it can be moved clear of the electro-photographic apparatus of which it is part, and is pivotally mounted relative to the rails so that it can be tilted about hinges 25 when it is clear of the apparatus.
Patent GB-637018-A (GB)
Title: Improvements relating to the manufacture of gramophone record reproducing apparatus
IPC: G11B3/46
Filed: 1947-04-27
Abstract: 637,018. Mounting needles in gramophone pick-ups. DUTTON, G. F. April 2, 1947, No. 8903. [Class 40 (ii)] A tapered gramophone record reproducing stylus 4, made for example from sapphire is inserted into a tapered recess 2 in a blade-like suspension arm and is secured by means such as solder 5 engaging the arm and the end of the stylus. A sleeve of soft metal may be provided between the recess and the stylus and the end of the stylus may be metallized.
Patent GB-949982-A (GB)
Title: Improvements relating to window frames, more particularly vehicle window frames
IPC: E06B3/62
Filed: 1961-03-11
Abstract: 949,982. Vehicle window frames. G. CARTER. March 9, 1962 [March 11, 1961], No. 8974/61. Heading E1J. An aluminium window frame 1 has a peripheral abutment portion 6 bearing, through a mastic cushioning material 7, upon the outside face 2a of a window surround 2 and a peripheral oblique integral lip 8 forming a channel 9 and a retaining member in the form of an endless band 10 of solid rubber engaged behind the lip 8 to exert pressure on the lip and on the inside face 2b of the window surround 2 to draw the abutment portion 6 tightly against the outside face 2a. In the alternative arrangement shown in Fig. 4, the band 10 is replaced by a metal loop 11 pre-bent into shape and has opposed ends 11 a; 11b, provided one with a left-hand and the other with a right-hand external screw thread connected by a coupling screw device 12. In the arrangement of Fig. 5, the retaining member comprises a wedge bar 14 inserted and secured behind the peripheral lip 8 in the groove 13 and has a portion 14a beyond the groove pressing against the face 2b. The portion 14a may be rebated to fit over an edge of an inside finisher panel when provided.
Patent GB-726248-A (GB)
Title: Improvements in fuel injection valves for internal combustion engines
IPC: F02M61/18
Filed: 1953-04-01
Abstract: 726,248. Fuel injectors. BOSCH GES., R. April 1, 1953 [April 12, 1952], No. 8986/53. Class 7 (3). A fuel pressure operated needle valve 2 has conical surfaces at its end resting on conical surfaces in the injector body 1, the conical angles a and # of the conical surfaces of the body and valve upstream of the actual contact area differing by less than 20 degrees and the angles # and γ of the corresponding surfaces downstream of the contact area differing by 0À5 degrees to 4 degrees. In Fig. 1 the valve and body have line contact and the difference between the angles α and # is 10 degrees, the angle # being equal to the angle α. In a modification, Fig. 2, the valve and body have contact over a conical area of height h and the valve body is provided with a third conical portion of angle # which is 3 degrees greater than the angle α, the angle # being preferably 2 degrees greater than the angle y. In further modifications the angles a and # differ whilst the angles # and # are equal. The fuel is sprayed through injection orifices 4 but the invention is also applicable to injectors having an annular spraying orifice formed between the injector body and a pin carried on the end of the needle valve.
Patent GB-644834-A (GB)
Title: Improvements in or relating to the feeding of metal strip to scroll shears or the like
IPC: B23D33/02
Filed: 1948-03-30
Abstract: 644,834. Metal-strip feeds. CONTINENTAL CAN CO., Inc. March 30, 1948, No. 9027. Convention date, July 11, 1947. [Class 83 (iv)] Straightening; shearing.- In an intermittent strip feed to scroll or straight shears or punch cutters G where a a slack hump D is formed and located while the strip is held and gauged by a stop H, a feeler 80 engaged by the hump D controls the feed speed to keep the maximum hump height within predetermined limits during shearing &c., and the feed means is stopped by an electric circuit completed through the metal strip S. The strip S is drawn from a braked reel A by a combined roller-leveller and feed unit B beltdriven from a main electric motor 14 and passes to hump forming and constraining guides C. When the strip end engages the stop H period - ically raised in its path by crank-and-cam means 70 gear driven from the motor 14, an idle roll 46, Fig. 6, is cam-raised clear of a lower roll 43 driven from a further motor 44 to.stop the end feed and a cam-raised bar 47 descends to clamp the strip during shearing. The hump D grows, and if the feeler 80 lifts sufficiently to close an upper feeler switch 82, a solenoid 36 operates a fluid pressure valve, Fig. 5, not shown, for a piston operating a speed regulator to reduce the speed of the motor 14. A timing switch 91 is cam-operated in synchronism with the motor 14 to close when the hump D reaches its maximum height during each shearing operation so that if the hump D is too low and a lower feeler switch 83 is not opened by the feeler 80 a solenoid 37 operates to raise the speed of the motor 14. The regulator disc is perforated for selective attachment of the piston rod thus allowing setting of the mean motor speed. A contact member 100 above the hump D is connected to the main electric supply operating solenoid 103 and should the apparatus jam &c. the hump D contacts the member 100 to complete a circuit through the strip S and the earthed frame 110 to stop the motor 14. The sheared strips are delivered from the gauging table 61 by a belt 62 driven from a separate motor 66. When the shear rises, the hold down bar 47 lifts and the roll 46 descends to assist the gravity feed due to the hump D and the final strip feed up to the stop H is by the rolls 6 of the feeding unit B. In a modification edge trimming means may be fitted between the coil A and the feeding unit B. Specification 644,835 and U.S.A. Specifications 2,078,196 and 2,266,687 are referred to.
Patent GB-451921-A (GB)
Title: Improvements in traffic control systems
IPC: G08G1/08
Filed: 1935-02-12
Abstract: 451,921. Road signals for controlling traffic. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, Liverpool, and RENSHAW, A. P. B., Brookwood, Dickerage Road, Kingston Hill, Surrey. Feb. 12, 1935, No. 9045 /36. Divided out of 451,863. Drawings to Specification. [Class 118 (ii)] In a vehicle-actuated road traffic control system, the detectors are placed beyond the stop lines. The description is identical with that in Specification 451,863, which claims other features.
Patent GB-512876-A (GB)
Title: Improvements relating to drafting machines
IPC: B43L13/06
Filed: 1938-03-25
Abstract: 512,876. Draughting-machines. LITTLE, C. H., and LITTLE, C. H. March 25, 1938, No. 9144. [Class 97 (iii)] In a draughting-machine having parallel motion mechanism of the wheel and band type, the struts are composed of end members 17, 18, and tubular side members 16. which together form a casing for the band 12 and wheels, the end members having removable covers to afford access to the wheels or band. The tubes 16 are rotatably mounted in cylindrical sleeves 19 on the end members to enable the protractor head 13 to be lifted from the drawing board. Nuts 20 threaded on the ends of the tubes 16 and trapped in slots 21 in the end member enable the tension of the cord 12 to be adjusted. Fig. 10 show a removable cover for the end members 18, 40 and at the elbow and 17 at the anchor. The end member 43 at the protractor end is covered on top by a disc which carries the dndex 51 and is adjustably clamped to a flange on the adjacent wheel at 53. The scales 57 are secured by a clamp 60 to the protractor scale 50 which may be set to different positions by means of the pawl 59. The wheels and scales are provided with ball bearing mountings. Specification 493,749 is referred to.
Patent GB-590427-A (GB)
Title: Improvements in view finders for moving picture cameras
IPC: G02B23/14
Filed: 1945-04-12
Abstract: 590,427. View-finders for kinematograph cameras. BROIDO, J. J. April 12, 1945, No. 9181. Convention date, June 25, 1942. Drawings to Specification. [Classes 97 (i) and 98 (i)] A view-finder system for a kinematograph camera comprises an inclined sheet of thin plain glass, behind the objective and in front of the shutter and film, which reflects a part of the light beam on to a ground glass screen. An optical system is provided for viewing the image on the screen. Means may be provided for removing the glass plate from the light beam. The Specification as open to inspection under Sect. 91 also contains the subject-matter of Specification 590,925. This subject-matter does not appear in the Specification as accepted.
Patent GB-493111-A (GB)
Title: Manufacture of improved filaments, threads, foils or sheets of cellulose esters or ethers
IPC: D01F2/28
Filed: 1937-03-31
Abstract: Water repellant filaments, foils, &c. of cellulose esters or ethers are produced by incorporating in the spinning solution certain quaternary ammonium salts and subjecting the spun filaments of foils to a heat treatment above 70 DEG  C.  Wet or dry spinning processes may be employed.  The quaternary ammonium salts are those of the general formula <FORM:0493111/IV/1> where R stands for a saturated or unsaturated aliphatic hydrocarbon radical having not less than 12 carbon atoms, or for the radical R1-CO where R1 is a saturated or unsaturated aliphatic hydrocarbon radical having not less than 12 carbon atoms; X stands for oxygen, sulphur, or an imino or substituted imino group; the group <FORM:0493111/IV/2> stands for a tertiary aliphatic base or a heterocyclic base such as pyridine or quinoline; and Y stands for the monovalent anion of an acid for example hydrochloric, hydrobromic, nitric, sulphuric, p-toluenesulphonic, or oxalic acids.  The imino or substituted imino group may be alkylimino such as methylimino or ethyl-imino; acylimido such as acetimido; aralkylimino such as benzylimino; arylimino such as anilino; or the residue of a carbamate such as methyl or ethyl carbamate.  Quaternary ammonium salts specified are octadecyloxymethylpyridinium chloride, octadecyloxymethylpyridinium bromide, octadecyloxymethylpyridinium iodide, octadecyloxymethylpyridinium nitrate, octadecyloxymethylpyridinium acid oxalate, cetyloxymethylpyridinium pyridine sulphite, cetylthiomethyl pyridinium bromide, octadecyloxymethyltriethylammonium chloride, octadecyloxymethyltriethanolammonium chloride, octadecyloxymethylquinolinium chloride; pyridinium derivatives from the chloromethyl ethers of sperm oil alcohols, lauramidomethylpyridinium chloride, stearamidomethylpyridinium chloride, stearamidomethylpyridinium bromide, stearamidomethylpyridinium nitrate, stearamidomethylpyridinium pyridine sulphite, stearamidomethylpyridinium m-nitrobenzene sulphonate, N - methyl - stearamidomethylpyridinium chloride, stearanilidomethylpyridinium chloride, oleylamidomethylpyridinium chloride, N - carbo - methoxyheptadecylaminomethylpyridinium chloride, p-cetyl-phenylaminomethylpyridinium pyridine sulphite, and p - stear - amidophenylaminomethylpyridinium pyridine sulphite, and cetylthiomethylpyridinium chloride.  Quaternary ammonium salts in which X stands for oxygen, imino or substituted imino groups may be made by the methods described in Specifications 390,553, 394,196, 471,130, 475,119, and 475,170. Quaternary ammonium salts in which X stands for sulphur may be made from the corresponding mercaptans and tertiary amines, e.g. cetylthiomethylpyridinium chloride may be made by reacting cetyl mercaptan with formaldehyde and hydrogen chloride and combining the cetyl chloromethyl sulphide so obtained with pyridine. Examples refer to the production of filaments from cellulose acetate, cellulose formate and ethyl cellulose and to heat treatments at 120-150 DEG  C.
Patent GB-490919-A (GB)
Title: Improvements in weather excluding strips for the latches of outside doors
IPC: E06B7/232
Filed: 1938-03-25
Abstract: 490,919. Weather-excluders for doors. PERCIVAL, S. (Chamberlin Metal Weather Strip Co.) March 25, 1938, No. 9245. [Class 20 (iii)] A weather-excluding strip is provided at the latch-plate of a door and comprises a bent resilient metal strip 12 having a flange nailed to the jamb stop at 9, the bend which engages the closed door being clear of the latch opening. The jamb has a bent metal excluding-strip 7 secured along its length away from the latch-plate, and the ends 14 next the strip 12 are cut at an angle and slit to allow a part 15 to underlie the strip 12, while the outer edge 13 extends over the tip of the member 12.