baber/WOPTO huggingface dataset:
Patent GB-663250-A (GB)
Title: Apparatus for varying the colour and intensity of light
IPC: G02B7/00
Filed: 1949-05-17
Abstract: 663,250. Optical apparatus. KOLLSMAN INSTRUMENT CORPORATION. May 17, 1949 [Jan. 13, 1949], No. 13099/49. Class 97 (i). An apparatus for varying the colour and intensity of light includes two relatively rotatable and coaxial discs, several light filters seated within openings in each disc, with a filter on one disc registered with a filter on the other disc and with the light path through the apparatus, means for rotating one disc alone through the major fraction of a revolution, means for rotating the second disc with said one disc for the remaining fraction of said revolution, said remaining fraction being the inverse of the number of light filters on the second disc, means for holding the discs in place when a filter on one disc has been registered with a filter on the other disc and with the light path and means for limiting rotation of the discs in one direction when all combinations of the light filters have been utilized. As shown, the face-plate 2 of an optical instrument, e.g. a periscopic sextant, carries a support 1 in which is rotatably mounted a pin 7 carrying a knurled knob 6 accessible outside the instrument. Pin 7 passes through a plate 13 mounted on support 1 and carries above this plate a gear 15 that meshes with an idler gear 19 meshing with a pinion 22. This pinion is freely rotatable on a pin 18 projecting from plate 13 and having a disc 23 press-fitted thereon so that the disc and pinion may rotate together. Freely rotatable on pin 18 is another disc 24, separated from disc 23 by a washer 35. Peripheral teeth on disc 24 mesh with teeth on a gear 39, which is rotatably mounted on plate 13 and has the lower portions of two teeth cut away to form an arcuate notch 44. Two links of the circumference of disc 23 are formed with a flange 30 which can move through notch 44 and thus not rotate gear 39 and disc 24. The remaining one-third of the periphery of disc 23 has teeth meshing with gear 39. Each disc 23 and 24 has three openings therein and a light filter seats in each opening. In use, knob 6 is rotated until a spring-urged detent in support 1 snaps into a recess on the underside of the knob. During this rotation, disc 23 is rotated and flange 30 thereon passes under the cut-out teeth of gear 39. At the end of this rotation, a colour filter A on disc 23 registers with a colour filter B on disc 24 and with the light path through an aperture 45 in plate 13. Further rotation of knob 6 causes a second filter on disc 23 to register with filter B and then a third filter to register with filter B. By this time, disc 23 has rotated through two thirds of a revolution and teeth on the periphery thereof come into mesh with gear 39 so that further rotation of knob 6 causes the discs 23 and 24 to move together for one-third of a revolution of disc 23 to register a filter C on disc 24 with filter A on disc 23. The procedure is then repeated and, when all combinations of filters have been used, a pin 47 projecting from plate 13 into a slot 46 in knob 6 prevents further rotation of this knob in the same direction.
Patent GB-131202-A (GB)
IPC: A47G25/88
Abstract: 131,202. Brown, H. N., (trading as Brown, J. & H.). Oct. 14, 1918. Hand sewing-tools.-A device for use in lacing football cases and for similar purposes comprises two channelled members 1, 2, tapering and turned upwards towards the outer end and connected by a pivot 4. The jaws 1<a>, 2<b> are pressed together by a spring 5, and (as shown in Fig. 3) the upper jaw is bent so as to form a rib 1<e>, the outer surface of the two jaws being approximately circular. In use the pointed end of the device is pushed through the lacing holes and the lace is engaged between the jaws and is drawn back through the holes.
Patent GB-379721-A (GB)
Title: Improvements in and connected with needles for hypodermic syringes
IPC: A61M5/32
Filed: 1931-05-04
Abstract: 379,721. Hypodermic needles. EVERETT, S. J., 939, London Road, Thornton Heath, Surrey. May 4, 1931, No. 13123. [Class 81 (ii).] In mounting hypodermic needles, a slug is die cast upon the needle, which slug is then secured in a syringe mount, preferably by expanding it therein by a pressing operation. The slug may be only partly formed by die casting and completed by a subsequent drawing, pressing, or like operation. The needle 11 is centred in a die casting mould 1, 2 into which molten metal such as pewter or other plastic metal, is forced under pressure. The end of the slug is formed with a recess 15 to facilitate cleaning the needle and is slightly tapered. The needles may be secured in syringe mounts by pushing the tapered slugs into complementary holes in said mounts. Preferably, however, the slugs are expanded in the mounts by a pressing operation, when a tapered slug is unnecessary. The needle 11 with slug 7 is supported in a bolster 25, and the slug expanded by forcing a punch 30 into it so that it is tightly gripped in the hole 29 of the mount 28. The mount may be of soft metal when it may itself be deformed, and the hole 29 may be shaped to ensure tight connection. The invention is also applicable to double ended needles. Specification 255,953, [Class 81 (ii), Medical &c. appliances], and 377,754 are referred to.
Patent GB-131240-A (GB)
IPC: B31B50/00
Abstract: 131,240. Rose, W., and Rose Bros. Feb. 28, 1919. Paper bags and the like, making.-Relates to apparatus for making paper and like bags or containers of the kind having a number of mandrels or formers radially arranged on an intermittingly rotated sleeve or shaft, each former having a presser foot or bar adapted to exert pressure on the longitudinal seam of the bag. The presserfoot is provided with operating means which readily indicates whether the required pressure is being exerted and is adapted to maintain the pressure for a predetermined time. The formers 1 are carried by arms 2 on a sleeve 3 which can turn on a shaft 4, each former being provided with a presser-foot 7 pivoted by a link 6 to a bracket 5. Pressure is applied by means of a block or die 13 to which is pivoted one end of a lever 8 carried by the bracket 5. To the other end of the lever 8 is pivoted a lever 9, one arm of which is connected by links 12 to the link 6 which carries the presser-foot. Lugs 15, 16 on the levers 9, 8 are held in contact by a spring 17 when the pressure is released, and are caused to separate when pressure is applied, so that the relative position of the lugs indicates whether the desired pressure is being exerted. The block 13 is moved vertically to operate the presser-foot by a sleeve 20 loosely mounted on the shaft 4 and having jaws 21, 21a, Fig. 4, between which the block is carried by the rotation of the shaft. The sleeve 20 may be reciprocated by a cam 34 and a lever 28. The block 13 may be held in its lower position so that pressure is maintained during a complete or partial rotation of the sleeve 3 by means of a stationary piece 39, Fig. 5, having flanges 41, 41a interrupted by a gap 42 through which pass the jaws 21, 21a on the sleeve 20.
Patent GB-716828-A (GB)
Title: Improvements in internal combustion engine valve gear
IPC: F01L1/12
Filed: 1952-05-23
Abstract: 716,828. Valve gear. SAMPIETRO, A. C. April 24, 1953 [May 23, 1952], No. 13150/52. Class 7(6) In an engine having inlet and exhaust valves 6, 9, on opposite sides of a substantially hemispherical combustion chamber 1, a single camshaft 25 on one side of the cylinder operates the valve 6 on the same side of the cylinder through a primary push rod 12 and rocker 14 and the valve 9 on the opposite side through a second primary push rod 12, a first rocker 15, a secondary push rod 20 projecting across the cylinder head, and a second rocker 21, either the inlet or exhaust passage 4, 5 being arranged laterally of the cylinder and arranged to pass between the rockers 12. In a multicylinder engine, Fig. 3, all of the primary push rods 12 are arranged in line and the rockers 14, 15, for each cylinder are arranged on a common pivot shaft 13 whilst the rockers 21 are arranged on a second common pivot shaft.
Patent GB-924914-A (GB)
Title: Improvements in or relating to optical wide-angle lens system
IPC: G02B13/04
Filed: 1961-04-12
Abstract: 924,914. Optical objectives. E. LEITZ G.m.b.H. April 12, 1961 [April 16, 1960], No. 13163/61. Class 97 (1). A lens system with fixed angle greater than 70 degrees comprises a main system having on each side thereof a negative meniscus concave towards a central diaphragm or by a group of menisci concave to the diaphragm, the group being of negative power. The main system has a single positive component formed of cemented elements at the object side of the diaphragm and, on the image side of the diaphragm, a group of at least two components of which the component closest to the diaphragm is a simple negative lens concave towards the diaphragm or a composite negative component with its front surface concave towards the diaphragms, the concave surface in each case having a radius less than the focal length of the whole system, the other component, or the other components jointly, of the image side of the main system is/are of positive power. Optical data are given for four examples, for which one is as shown.
Patent GB-1221957-A (GB)
Title: Improvements relating to apparatus for transferring material by winding from one spindle to another
Inventor: DEFONTENAY PAUL
IPC: D06B3/32
Filed: 1968-03-19
Abstract: 1,221,957. Winding and unwinding textile webs. P. DEFONTENAY. 19 March, 1968 [30 March, 1967], No. 13165/68. Headings DID and D1L. [Also in Division F2] To obtain a constant speed and tension during dyeing of a textile web, spindles A1 and A2 (between which the web travels) are driven by variable V belt drives TV1 and TV2, the latter direct from a constant speed motor Ml and the former via a differential D. The relative movement of the differential cage is fed to a control box BC which embodies an oil pump 3 sensing direction of rotation and so operating respective switches 7 that detect excessive out-of-balance and apply this signal to minimising the out-of-balance by varying the ratios of TV1 (by M4) or TV2 (by M3) respectively. In a development, a further guide roller arranged intermediate the path of the textile from the winding spindles is similarly controlled.
Patent GB-131900-A (GB)
IPC: B41J11/14
Abstract: 131,900. Akt.-Ges. vorm. Seidel & Naumann. April 28, 1917, [Convention date] . Plasten-shift mechanism.-In machines in which a vertically-movable shift frame 2 is mounted on the carriage 1, the shift frame is prevented from shattering by means of a catch device which is mounted on the shift frame and normally engages a stop on the carriage. In the arrangement shown in Fig. 1, the roller 8 in connexion with the shift key engages a rod 7 secured to arms 6 which can rock on a cross rod 5 of the shift frame, one or both of the arms being provided with a finger 9 which normally engages a stop 11 on the carriage. The stop consists of a grooved pin projecting through a slot 17 in the shift frame. A spring 10 or gravity holds the finger in contact with the stop. On operating the shift key, the finger 9 is swung into the released position, the movement being limited by the engagement of the arm 6 with an adjustable stop 12 on the shift frame; further movement of the shift key then causes the shift frame to be elevated. In the arrangement shown in Fig. 5, the roller 8 first lifts a bar 14 to release the finger 15 from the stop 11 and then engages a rigid bar 13 to elevate the shift frame. The finger is provided with an adjustable screw 16 for engaging the stop 11.
Patent GB-132809-A (GB)
IPC: B26D3/18
Abstract: 132,809. Nutter, C. P. July 9, 1915, [Convention date]. Cutting and slicing vegetables.-A machine for cutting potatoes &c. into slices, strips, or cubes comprises a plunger 13 sliding on the bed 11 and co-acting with horizontal knives 16, and a second plunger .22 operating in a chamber 18 in connexion with two sets of knives 24, 26 arranged at right-angles. The plunger 13 is operated by the cross-bar 40 carried between links 36 attached to the rooking frame 30 and handle 32. The lost motion between the bar 40 and the shoulders 34, 35 allows the plunger 13 to remain stationary until the plunger 22 has been raised clear of the knives 16, and on the return stroka until the plunger 22 has descended upon the vegetable which has been forced into the chamber 18. The bar 40 is prevented from rising by lugs 38 engaging below flanges 39. The plunger 22 is actuated by the slot 29 in the frame 30 engaging a trunnion 20. When the trunnion 20 leaves the slot 29 at the top of the stroke it is engaged by the cam face 33 to keep the plunger stationary. Either or both the sets of knives 24, 26 may be removed to vary the form of the product, each set being secured in a frame and placed under tension by means of screws engaging one of the transverse rods 40<x>.
Patent GB-801438-A (GB)
Title: Improvements in hand tools for crimping electrical connectors
IPC: H01R43/042
Filed: 1954-11-10
Abstract: 801,438. Crimping tools. AMP Inc. Nov. 10, 1954 [Nov. 10, 1953], No. 13388/57. Divided out of 801,436. Addition to 750,047. Drawings to Specification. Class 61. A tool for crimping electrical connectors comprises a pair of dies with means for forcing them together during the crimping operation, and a locating device for positioning the connector, the said device being mounted for sliding movement and urged by a spring towards one of the dies, and being manually movable away from that die to permit the insertion of a connector. The construction described is the same as that disclosed in Specification 801,436 and 801,437, but the claims differ.
Patent GB-923171-A (GB)
Title: Anti-hypercholesterolemic compositions comprising dí¬3,5,3-triiodothyronine
IPC: A61K38/22
Filed: 1960-04-14
Abstract: D-3,5,31-Triiodothyronine is prepared by the slow iodination of D-3,5-diiodothyronine in an ammonia/methanol mixture with Niodine in potassium iodide solution.  The crude product is obtained by dilution of the reaction mixture with water and addition of a mineral acid after the removal of the bulk of the ammonia and methanol. Purification is achieved by hot filtration of a solution of the crude product in 2N-hydrochloric acid followed by chromatographic separation of the above compound and thyronine on a keiselguhr column using 20% chloroform in n-butanol equilibrated with 0.5 N sodium hydroxide.ALSO:Antihypocholesterolemic compositions comprise, as active ingredient, D-3,5,31-triiodothyronine or a non-toxic, pharmaceutically active salt thereof e.g. the mono- and di-alkali metal, ammonium and lower (C1-) alkyl ammonium salts.  The compositions may be in solid or liquid forms e.g. a tablet, capsule, troche, lozenge, syrup or liquid suspension suitable for oral administration or injection and may contain conventional carriers and flavouring agents.  The active material may also be mixed with the feed or drink of animals for administration thereto.  Additional non-hormonal medicinal ingredients e.g. vitamins, unsaturated fatty acids and lipotropic agents e.g. inositol, betaine, methionic and choline.
Patent GB-134052-A (GB)
IPC: F42C9/12
Abstract: 134,052. Edgar, H. S. Nov. 1, 1918. Projectile fuses.-Relates to fuses especially intended for flares dropped from aircraft, and consists in making them with a vane-wheel e which is rotated while the flare drops and causes its spindle c to be screwed in to fire a friction primer i, igniting a time-fuse b previously set for the time desired. The flash is led from the timefuse to the main charge by a quick match k coiled round a packing of slag wool l. The friction primer i is carried by a percussion detonatorcarrying pellet h which strikes a firing-pin m on impact with the target, and fires the main charge if the time-fuse has not yet done so. The spindle c is normally locked by a safety pin g.
Patent GB-1083367-A (GB)
Title: Apparatus for measuring fluid characteristics
IPC: G01N9/10
Filed: 1965-03-30
Abstract: 1,083,367. Electric measuring apparatus. LUMMUS CO. March 30, 1965 [April 24, 1964], No.13421/65. Heading G1N. Apparatus for measuring the level or specific gravity of a fluid comprises a float directly attached to a strain transducer of the type incorporating resistance strain gauges, whereby the property to be measured can be indicated electrically at a remote location. The float 26 (not shown) is suspended by a rod 92 from a cylindrical block 82 disposed centrally of the opening in an annular member 50 and connected by thin flexure elements 78, 80 to bosses 74, 76 projecting inwardly from the member. Resistance strain gauges (not shown) are positioned on the elements 78, 80 and are attached to leads which pass through a radial extension 102 of the member 50 and are linked to an A.C. or D.C. source and a Wheatstone bridge or other measuring circuit. Resilient diaphragms 120, 122 protect the strain gauge elements from the fluid to be tested, and are clamped between the member 50 and cover members 46, 48. The centre sections of these members restrict the movement of the block 82 and thereby protect the flexure elements 78, 80 from damage. The transducer is clamped to a housing 16, which may be a cylindrical chamber through which the fluid circulates and which restricts lateral movement of the float. Alternatively, the housing 16 may be part of a fluid processing vessel in which the float is freely suspended. Various modified constructions of strain transducer are described, those illustrated in Figs. 4-8 (not shown) having a central block supported by diametrically opposed flexure elements, as in the first embodiment, but with alternative forms of outer rigid support member. In Figs. 9 and 10 (not shown) the central block is mounted within an outer annular member by means of a flexible diaphragm in which the strain gauge element is embedded. In Figs. 11 and 12 (not shown) the flexible diaphragm is mounted in an annular member of C-shaped crosssection so that the outer peripheral portion of the diaphragm is located within the hollow centre of the member and the diaphragm is held between the opposed jaws of the C. The strain gauge element is applied around the peripheral portion of the diaphragm.
Patent GB-1482067-A (GB)
Title: Benzoin tert.-butyl ethers
IPC: C07C49/84
Filed: 1976-04-02
Abstract: 1482067 Benzoin tert.-butyl ethers BAYER AG 2 April 1976 [4 April 1975] 13447/76 Heading C2C [Also in Division C3] Benzoin tert.-butyl ethers having the general formula wherein R<SP>1</SP> and R<SP>2</SP>, which are the same or different, are hydrogen, halogen, phenyl, alkoxycarbonyl or C 1  to C 6  alkyl or alkoxy, are prepared by reacting a corresponding benzoin with a tert.-butyl ester of an aliphatic, aromatic or araliphatic mono- or di-carboxylic acid or carbonic acid or a tert.-butyl ether or isobutylene in the presence of an acid catalyst at 10‹ to 120‹ C. Acid catalysts are preferably Lewis acids, strong inorganic and organic protonic acids, organic sulphonic acids and acid ion exchangers. The process may be carried out in an aprotic solvent. The compounds of Formula (I) prepared by the above process may be used as u.v.-curing agents for unsaturated polyester resins.
Patent GB-156457-A (GB)
Title: Improvements in taps or valves for potters slip and the like
IPC: B28C1/06
Filed: 1920-05-17
Abstract: 156,457. Newton. J., and Clewlow, W. May 17, 1920. Bayonet and like joints; joints with external sleeves.- A connecting-union for taps or valves for potters slip &c. comprises two collars s b, b<2> formed integrally on the shank a and a loose box-nut c cast in position with a flange between the said collars. The nut c is formed with inclined projections d for a bayonet-joint like connection to the supply.
Patent GB-389306-A (GB)
Title: Cold rolling mill
IPC: B21B13/14
Filed: 1932-05-11
Abstract: 389,306. Cold rolling. WALZ - MASCHINENFABRIK A. SCHMITZ GES., 101, Neusserstrasse, Dusseldorf, Germany. May 11, 1932, No. 13582. Convention date, April 18. [Class 83 (iv).] A cold metal plate or band 12 is pushed into the bite of the rolls 4 by a slide table 8 carrying friction blocks 19, 35 between which the plate is clamped. The table 8 is moved up by a hydraulic cylinder 9. The plate being located between the opened blocks 19, 35 with the help of side guides. The block 19 is closed to clamp the plate by the hand-lever 18 acting through toggle links and the pivot shaft 17. If the plate is thinner at one side than at the other, one end of the pivot shaft 17 is moved by adjusting the nut 28 to move the lever 20 about its pivot 23 in the side frame 21 fixed on the slide. The other end of shaft 17 can also be adjusted by hand-wheel 26 of the bellcrank lever 25 in which the other end of the pivot shaft 17 is mounted. Further adjustment is provided by hand-wheel 31 which moves the complete lever system in or out as a whole. A screw down clamper 32 is also provided. Both clampers act as a brake on the plate or band.
Patent GB-528913-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A61G1/04
Filed: 1939-05-08
Abstract: 528,913. Vacuum cleaners. HOOVER, Ltd. May 8, 1939, No. 13659. Convention date, May 9, 1938. [Class 8 (i)] A propelled electric vacuum cleaner having main, rear and front wheels, the rear wheel pivots being normally fixed on the casing, is provided with auxiliary wheels movably mounted adjacent to the front wheels and resiliently urged downwards to take a part of the load. In one form of apparatus, the main and auxiliary front wheels are approximately coaxial, the main wheel pivots being fixed and the auxiliary wheel pivots carried by spring-pressed hinged brackets ; the ends of the handle bail may be connected directly to the auxiliary wheel pivots. In another form as shown, the auxiliary and main front wheels are both movable to different extents being carried, e.g. on common spring-pressed pivoted links P or being independently mounted under spring pressure their movements being correlated by interengaging cams. The tread of the main front wheels may be wider than that of either of the other sets of wheels. The Specification as open to inspection under Sect. 91 comprises also a form in which the auxiliary wheels are carried on links pivoted on the fixed main wheel pivots. This subject-matter does not appear in the Specification as accepted.