baber/WOPTO huggingface dataset:
Patent GB-1015432-A (GB)
Title: Improvements in or relating to optical maser apparatus
IPC: H01S3/093
Filed: 1962-07-24
Abstract: 1,015,432. Lasers. LITTON INDUSTRIES Inc. July 24, 1962 [July 31, 1961; Jan. 8, 1962], No. 32773/64. Divided out of 1,015,431. Heading H6B. The active element of a laser consists of a plurality of optical fibres 28, each surrounded by material of lower refractive index. The fibres may be of pink ruby, or samarium or uraniumdoped calcium fluoride, each fibre being about five microns in diameter, and the cladding may be of glass. Light passing between the fibres provides coherence across the bundle, the fibres being spaced to permit the flow of coolant. One end of the bundle is bonded to form an integral body 38 and the extreme end 40 is silvered. The other end surface 42 may be partially reflecting, but is preferably unsilvered. In Fig. 5, fibre optical cables 28<SP>1</SP> are attached to each end of the laser rod and arranged so that the output 72 from one cable impinges partially on the end 58 of the other to form a circulating regenerative system. The end of one cable may be mounted on an adjusting screw 64 to provide exact phase-lock. Light from an external source 68 may be amplified. Further embodiments are described in which the laser elements in the arrangements described in Specification 1,015,431 are replaced by bundles of optical fibres (Figs. 6 to 8, not shown). The refractive index of the coolant preferably is such that light from the pumping source does not tend to be totally reflected, and may be coloured to act as a filter. Liquid nitrogen is mentioned as a coolant. Rectangular laser elements may be used.
Patent GB-843943-A (GB)
Title: Improvements in conveyor weighing systems
Inventor: LYONS LAWRENCE J
IPC: G01G11/04
Filed: 1956-10-29
Abstract: 843,943. Continuous weighing systems. FAIRBANKS, MORSE & CO. Oct. 29, 1956, No. 32912/56. Class 40 (1). A conveyer or weighing system comprises a pair of A.C. energized strain gauge load cells 2, 3 acted on by the loaded conveyer belt 1 and connected with an element 41 producing a voltage corresponding to the dead weight of the belt in a self-balancing potentiometer circuit. The potentiometer motor 5 drives a cam 10 which adjusts the gear ratio of a ball and disc transmission between a shaft 22 driven at a speed related to that of the conveyer and a counter 27 which thus registers the total weight carried. The motor also adjusts a D.C. potential divider with calibrating adjustments, Fig. 3 (not shown), associated with a meter which indicates the instantaneous loading on the conveyer. A further potential divider, also with calibrating adjustments, Fig. 4 (not shown), driven by the balancing motor is supplied by a tachometer generator driven by the belt and its associated meter 11 thus indicates weight passing per unit time.
Patent GB-1394915-A (GB)
Title: Fastening together of sheets of deformable material
IPC: B26D5/14
Filed: 1973-07-11
Abstract: 1394915 Jointing; punching O P HAFNER 11 July 1973 [28 July 1972] 32955/73 Headings B3J and B3W A joint is formed between sheets of metal or other deformable material 28, 29, Fig. 5, by displacing areas 128, 129 of the sheets located between cuts through the sheets so that area 129 is beyond sheet 28, and spreading the area 129 laterally beyond the edges of the cuts in sheet 28 and also beyond the edges of the displaced area 128. As shown, the punches 80, 92 and die 70 for striking out the tabs 128, 129 are similar to those in Specification 1,343,003 to which reference is made, but the press is different and operates so that during squeezing of the tabs between the punches 80, 92, the upper tab 128 is prevented by the die 70 from spreading laterally. A layer of another material may be interposed between the sheets. The press has a casing 24 in which an outer ram 50 carrying the die 70 is driven by connecting rods 31, 33 on eccentrics 21, 23 fixed to a drive shaft 10. An inner ram 392 carrying the flattening punch 92 is independently driven, through an adjustable connecting rod 32, 44, by an eccentric 22 which is adjustably coupled to a collar 34 on the shaft 10 by a pin 37 engaging one of a number of holes 36 in the collar. Thus phase relationship between operations of the flattening punch 92 and the surrounding die 70 can be changed by selecting a different hole 36 for the pin 37. The position of the stroke of the punch 92 can be changed by altering the length of the connecting rod 32, 44, the parts of which are connected by a bolt 45, Fig. 2, which may be turned, after releasing a clamping screw 49, by engagement with sockets 245. The die 70 also is adjustable, by means of its holder 62, which engages a timeadjustment nut 55. Thrust on the die-holder 62 is transmitted through a bearing nut 65 with coarse threads. A urethane stripper 81 surrounds the lower punch 81 which may also be adjustable.
Patent GB-876174-A (GB)
Title: Improvements in coupling devices for railway vehicles
Inventor: CHECKLEY PETER EDWARD
IPC: B61G5/04
Filed: 1957-10-15
Abstract: 876,174. Railway vehicle couplings. DOWTY HYDRAULIC UNITS Ltd. Oct. 15, 1958 (Oct. 15, 1957; Jan. 10, 1958], Nos. 32959/58 and 32958/58. Divided out of 876,173. Drawings to Specification. Class 103(5). The subject-matter of this Specification is substantially the same as that described in Specification 876,173 but the claims are concerned with coupling mechanism for a railway vehicle, comprising an automatic coupler pivotally mounted about a substantially vertical axis on the end of a drawbar for swing- ing sideways out of the way to present a second form of coupler in a generally longitudinal position of use, wherein the coupling mechanism additionally comprises locking mechanism which is releasable to permit said sideways swinging of the coupler, and a torsionally acting spring device, the locking mechanism being engageable to provide a location for the automatic coupler substantially in the longitudinal position of use, and the spring device permitting angular displacement of the automatic coupler from the longitudinal position against the restoring force of the spring.
Patent GB-370352-A (GB)
Title: Improvements in or relating to apparatus for the recording or reproduction of sound
IPC: G11B3/46
Filed: 1931-11-27
Abstract: 370,352. Gramophone pick - ups. STEATIT-MAGNESIA AKT.- GES., 18, Breite Strasse, Pankow, Berlin. Nov. 27, 1931, No. 32968. Convention date, Nov. 28, 1930. [Class 40 (ii).] An electric pick-up in which the stylus is held on the armature socket by spring action has a blade spring 3 attached to the casing 5 at its upper end and extending through the bottom of the casing to furnish a finger grip 8 opposite to a projection 13 integral with or attached to the casing. A pin 6 fixed to the spring extends through an apertured sleeve 17 on the armature to engage the stylus 9 and can be drawn back by gripping the parts 8, 13. The armature 10 has a conical projection 16 resting on a bearing 11 .and extends between the magnets 2 to be engaged by damping members 14.
Patent GB-875908-A (GB)
Title: Device for the galvanisation of the bearing surfaces of heavy and very heavy crank shafts
IPC: E02F9/22
Filed: 1959-09-29
Abstract: 875,908. Electroplating. MEUTER, E. Sept. 29, 1959 [Sept. 29, 1958], No. 33010/59. Class 41. An apparatus for electroplating successive surfaces 61 of a crank-shaft 6 comprises means, e.g. girders 4 and roller bearings 5 for supporting the shaft horizontally and in axially rotatable manner, a movable bath 12 adapted successively to receive the surfaces 61, vertically operable lifting means, e.g. a lifting cylinder 9, for raising the bath 12, and a trolley 8 carrying the cylinder 9. The girders 4 extend across two spaced parallel beams 1 between which the trolley 8 is disposed. A pump 15 circulates electrolyte between a container 17 and the bath 12 in which is suspended an anode 19 which is in halves, each comprising threesemicircular members adapted to embrace the surface 61. Each half anode is mounted respectively on a lead 21, 22, the leads being removably interconnected at 25 and supplying current from a bar 28. The cathode connection is at 29. In a modification, the bath 12 has staggered notches in its upper edge to receive the shaft 6 and stands in a shallow tank on the cylinder 9, electrolyte overflowing the bath 12 and passing from the tank back to the container 17. The girders 4 are horizontally movable.
Patent GB-914462-A (GB)
Title: Polyurethane compositions
IPC: C08G63/682
Filed: 1959-09-29
Abstract: A process for the preparation of a storage stable adhesive composition comprises: (1) heating at a temperature of from 60 DEG to 150 DEG .  (A) an alkyd resin comprised of the reaction product of (1) an adduct of a hexahalocyclopentadiene, wherein the halogen is chlorine, fluorine, bromine or mixtures thereof, and a dienophile having a plurality of groups capable of entering into an esterification reaction and (2) a polyhydric alcohol alone when the functional groups of the dienophile are carboxylic acid or anhydride groups, or a polyhydric alcohol together with a polycarboxylic acid or a polycarboxylic anhydride, halide or ester or a mixture thereof when the functional groups of the dienophile are hydroxyl groups, at least a portion of the polyhydric alcohol, in either case, containing three hydroxyl groups and not more than four carbon atoms; and (B) an organic polyisocyanate; and (II) cooling the resulting mass to below 30 DEG C.  By "functional group capable of entering into an esterification reaction" is meant a hydroxyl, carboxylic acid or carboxylic anhydride group.  Suitable isocyanate are 2,4- and 2,6- tolylene diisocyanate, 4,41-methylene-bis-(phenyl isocyanate); 3,31-bitolylene-4,41-di-isocyanate; 3,31-bitolylene-4,41-diisocyanate; 3,31-dimethoxy -4,41-biphenylene diisocyanate and 1,5-naphthyl diisocyanate.  Preferably 30 to 200% of isocyanate groups based on the number of hydroxyl groups are present in the reaction mixture.  A portion of adipic, oxalic, malonic, succinic, glutaric, pimelic, suberic, azelaic, sebacic, maleic, citraconic and itaconic acid can be used in forming the alkyd.  The products can be used as solids, in solution or on a carrier such as copper or lead foil or tissue paper or as a binder for sand, sandpaper, asbestos and abrasive grit for grinding wheels.  In typical examples (2) an alkyd from glycerol, 1,4,5,6,7,7-hexachlorobicyclo-(2.2.1)-5-heptene -2,3-dicarboxylic acid and adipic acid is reacted with tolylene diisocyanate; (7) an alkyd prepared from 3-(1,4,5,6,7,7-hexachlorobicyclo-(2.2.1)-5-heptene-2-yl)-methoxy-1, 2-propanediol, glycerol and phthalic anhydride is plasticized with tricresyl phosphate and reacted with tolylene diisocyanate.ALSO:In Example (6) 3-(1,4,5,6,7,7-hexachlorobicyclo - (2.2.1) - 5 - heptene-2-yl)-methoxy-1,2-propane diol is prepared by heating together allyl glycerol ether and hexachlorocyclopentadiene.  The product is used in the preparation of polyesters to be used in preparing polyurethanes.
Patent GB-410219-A (GB)
Title: Improved means for protecting electric cables and the like laid underground
IPC: H02G9/02
Filed: 1932-11-23
Abstract: 410,219. Underground pipes &c. TENNANT, N. S., and ORCHARD, F. A., 81, Westgate Road, Newcastle-on-Tyne. Nov. 23, 1932, No. 33145. [Class 99 (ii).] Warning or protecting tiles for covering underground pipes or cables are angular or segmental in crosssection and have at each end a pair of oppositely inclined surfaces which are so formed that the abutting ends of adjacent tiles interlock. Figs. 1<a>, 1<b> show a cable f protected by angular tiles a, b having parallel and vertical end faces d<1>, e<1> and d<2>, e<2> which are inclined in opposite directions to the longitudinal central plane of the tile. The faces d<1>, d<2> form a projection which fits into the recess formed by the faces e<1>, e<2> of an adjacent tile, thereby preventing relative lateral displacement of the tiles. To prevent relative vertical displacement, the faces d<1>, e1 and d<2>, e<2> may dovetail together, as shown in Fig. 3<b>. In another construction, Fig. 4b, the end faces are all perpendicular to the length of the tile, but the faces d<1>, e<1> and d<2>, e<2> are inclined on opposite sides of the vertical. In a modified construction of this kind, the transition between the oppositely inclined faces is gradual.
Patent GB-1414856-A (GB)
Title: Portable instruments for detecting alpha particles
IPC: G01T1/167
Filed: 1973-07-12
Abstract: 1414856 Dosage meters COMMISSARIAT A L'ENERGIE ATOMIQUE 12 July 1973 [13 July 1972] 33243/73 Heading H5R An alpha-particle dosage meter comprises means such as a suction fan 3 driven by a motor 4 for sampling air around a circuit 2 which includes a filter 5 for trapping alpha-emitting aerosols, two collimators 18, 19 at the upper ends of which are detectors 8 for separately detecting the alpha emissions of radium A and radium C<SP>1</SP> respectively. The separate detections are made by means of different thickness screens 9, 10 disposed in front of the detectors 8 which can be cellulose nitrate. The screens 9, 10 can be of polycarbonate respectively 25 and 6 microns thick and they -can be at either end of the collimators. The screen 10 slows down the 6 Mev. emissions of RaA to about 3 Mev. resulting in tracks in the detector whereas the 7À68 Mev emissions of RaC<SP>1</SP> are retarded to 5-3 Mev. and are not detected. Screen 9 stops the RaA -alpha particles and retards those from RaC<SP>1</SP> to 3 Mev. and consequently they are detected.
Patent GB-175114-A (GB)
Title: Improvements relating to guards for the bobbin skew-gear wheels of roving and the like speed frames
IPC: D01H1/16
Filed: 1920-11-26
Abstract: 175,114. Davies, J. C., and Greaves, G. Nov. 26, 1920. Guards.-The bobbin skew-gear wheels of roving and like speed frames are provided with guards comprising segmental plates f, supported in grooves in brackets g secured to the lifter-rail and provided with straight parts : i engaging the ordinary side plates e. Plates m secured to the depending rib of the lifter rail, in conjunction with the plates f, completely enclose the gear wheels.
Patent GB-1270030-A (GB)
Title: Remote-observation apparatus
Inventor: CHAUFFIER JEAN
IPC: G02B23/24
Filed: 1969-07-02
Abstract: 1,270,030. Remote observation apparatus. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 2, 1969 [July 10, 1968], No.33373/69. Heading G2J. An apparatus for the remote observation of objects has an objective 2 of variable focal length and an adjustable lens group 4 transmitting a parallel light beam to a fixed lens group 6, a first mirror system 16, 18 and a second mirror system 8 for deflecting a beam to an eye piece unit 10 also being provided. An image of the object is transmitted through glass window 104, mirror 106 and objective 2 on to the front focal plane of lens group 4 which passes the image through mirror 16, 18 lens group 6, either to binocular eye-piece 10 or to a photographic recording system 12 via movable mirror system 8. The remote adjustment of the lens elements of 2 and 4 is achieved by a system of toothed wheels and connecting rods attached to a set of manual control knobs adjacent the eye-piece unit 10. Alternatively an electric control system may be used. The apparatus comprises tubes 14, 3, 1 the latter being slidable on rollers 101 into a projecting tube 102 set in the wall 100 of a leak proof chamber e. g. a furnace or pressure or vacuum chamber, the window 104 and the flange 108 sealing the apparatus. The mirror 8, Fig. 12 (not shown), is pivotable on stand (88) via a spring and pivot arrangement by knob (97), two arms (98) and a stop (96) limiting the movement. The mirrors 16, 18 may be replaced by a single mirror.
Patent GB-333959-A (GB)
Abstract: 333,959. Bollmann, H., and Rewald, B. May 28, 1929. Ink.-A vegetable or animal phosphatide is added to a starch, dextrine, tragacanth, gum arabic, or other thickener, in the production of a printing paste. The phosphatide may be used dissolved in a mineral oil, and fatty oils and wetting agents, e.g. turkey red oil, may be added. In order to obtain the phosphatide from soya beans, the ground beans are extracted with a mixture of benzene and alcohol, and the oil obtained on evaporating off the solvent from the extract is treated with steam. The mixture of phosphatide and soya bean oil thus precipitated is separated, dried, and mixed with a mineral oil. e.g. spindle oil. According to examples this mixture is added to thickeners obtained from wheat starch, gum tragacanth, gum arabic, and a mixture of wheat starch and gum tragacanth. The phosphatides obtainable from pea shell meal, fish roes, brain, egg yolk, and soya bean slime, obtained in the extraction of soya beans with benzene, are also specified as suitable raw material.
Patent GB-172961-A (GB)
Title: Improvements in or relating to high frequency electric furnaces
IPC: H05B6/10
Filed: 1921-12-13
Abstract: 172,961. Westinghouse Lamp Co., (Assignees o:' Rentschler, H. C.). Dec. 13, 1920, [Convention date]. Induction furnaces.-In a high frequency induction furnace the inductively coupled secondary 9 and primary 7 are located within a highly evacuated vessel so as to form a very close inductive coupling. A glass or refractory metal container 1 which is exhausted through the connection 2, has a stopper 4 which is sealed in position and carries the leads 5, 6 to a primary coil 7 surrounding a crucible 9 which forms the secondary and is supported by a member S. High frequency current is supplied to the primary by a circuit comprising the secondary of a transformer 23 connected to the supply mains, a capacity 22 and the interrupter 12 which consists of two vessels 17, 13 supplied by leads 18, 14. The vessel 12 is closed and evacuated and the portion of the lead 18 therein which is not immersed in the mercury is insulated by a glass tube 19. Currents at 110 volts and 60 cycles is referred to in connection with the primary of the transformer 23, and current at 7000 volts and 100,000 cycles is referred to in connection with the furnace primary. Initial heating of the crucible may be effected by direct current supplied from the source 25 through the switch 26. In a modification the crucible is replaced by a disc carrying the material to be treated or by two discs separated by the material. The furnace may be used for sintering metals such as powdered tungsten, uranium, radium, titanium and zirconium, for liberating gases from metals for the formation of alloys and for conducting high temperature reactions.
Patent GB-645610-A (GB)
Title: Improvements in and relating to pipe couplings
IPC: F16L19/028
Filed: 1948-12-30
Abstract: 645,610. Pipe couplings. FLIGHT REFUELLING, Ltd., and SMITH, C. H. Dec. 30, 1948, No. 33494. [Class 99(i)] [Also in Group XXXVI] A sealing sleeve 1( of elastic material such as rubber, which fits closely over pipe ends 5, 6 and has chamfered ends and internal circumfer. ential grooves l0c corresponding with preformed bulges 11 of the pipes, is engaged over the whole of its outer surface when in its unstrained state by rigid elements comprising threaded sleeves 7, 8 having inward flanges 7a, 8a respectively, and a loose collar 9 which includes a chamfer 9a and fits slidably in sleeve 7. By screwing the sleeves together the sleeve 10 is compressed to grip the bulges. There may be a clearance 12 between the elements and the pipes to accommodate limited misalignment of the pipes, and an electrical bonding strip (see Group XXXVI) may provide means or locking the coupling parts against relative rotation.
Patent GB-366601-A (GB)
Title: Improvements in or relating to apparatus used in the treatment of photographic sheets in developing or other baths
IPC: G03D13/12
Filed: 1930-11-08
Abstract: 366,601. Photographic sheet holders. VINCENT, M. A., STORR, B. V., and ILFORD, Ltd., Ilford, Essex. Nov. 8, 1930, No. 33694. [Class 98 (ii).] A holder for use in the development or like treatment of photographic sheets of the type comprising an open rectangular framework whereof the walls are of channel section or the like form in order to embrace the sheet along its side and bottom margins is characterized in that near the upper end of the frame, portions of the side walls of the channel-section side members of the frame are cut away to co-operate with a flap hinged to the side members and movable towards the frame to lie adjacent to the cut-away portions, and in that fastening devices are so associated with the flap as to engage and grip the sheet at or near its top corners in the closed position of the flap. As shown, the holder comprises two side channel members 3, 4 whose length is greater than that of the sheet. The base of each channel section is provided with the perforations 5 for facilitating access of the solution to the sheet. The two channel members are connected at their lower ends by two flat metal bars 6, spaced by two pins 7. The upper front portions 8 of the channel sections are cut away, while the upper rear portions 9 are connected by the crossbar 10. A flap 11 is hinged to the channel sections at 12, and is provided with pins 13 co-operating with holes 14, whose edges are flared towards the pins, in the rear portions 9 of the channel sections. The flap 11 is held in its operative position by the clip 16 pivoted at 17 to the top bar 10. The clip 16 comprises a tongue-shaped member 18 provided with two hooks 19, 20 at right-angles to each other. The hook 19 clamps the upper edge of the flap 11 to the cross-bar 10, while the hook 20 serves to suspend the holder from a rod. When the flap 11 is freed the tongue 18 is swung into the position shown in which it prevents the sheet from sagging. Arms 23 form an additional support for the holder in the bath.
Patent GB-907135-A (GB)
Title: Weighing out and dispensing system
Inventor: PARKER KENNETH JAMES
IPC: G01G19/22
Filed: 1958-10-22
Abstract: 907,135. Weighing apparatus. PARKER Ltd., FREDERICK. Dec. 14, 1959 [Oct.22, 1958], No. 33811/58. Class 143. [Also in Group XXIX]  The ingredients of a mixture of bulk materials are automatically weighed out from separate supply sources each of which has its own weigher in a system wherein pneumatically operated automatic control means ensure simultaneous initiation of feed from some or all of the supply sources to their respective weighers, the latter each independently terminating the feed thereto on completion of a predetermined load. The four bins 1 shown each have a pivoted discharge gate 4 operable by a piston-cylinder device 6 by compressed air supplied to the latter via either pipe 14 or 15 under the control of a reversing valve 11. Feed to whichever of the weighers 3 is selected (by the opening of its associated cock 23) is initiated by manual opening of the valve 24 to admit pressure to line 21 and thence simultaneously to all the valves 11 whose cocks 23 are open and thereby open their feed gates 4. Each weigher incorporates a valve 10, e.g. of the type described in Specification 907,134, operative on completion of the required load to reverse the relevant valve 11 and thus close the associated gate 4. Each valve 11 may be operated independently to open or close its gate 4 in response to the manual operation of an associated reversing valve 30 controlling pressure air flow from a line 27 which is rendered live on operation of a two-way master cock 28 by which the automatic system is meanwhile rendered ineffective by the closure of line 21.