baber/WOPTO huggingface dataset:
Patent GB-1046294-A (GB)
Title: Improvements in or relating to photographic sheet material
Inventor: WELCH WALTER JAMES
IPC: G03C1/60
Filed: 1964-03-02
Abstract: 1,046,294. Photographic diazotype materials. GENERAL ANILINE & FILM CORPORATION March 2, 1964 [March 19, 1963], No. 8674/64. Heading G2C. A diazotype material comprises a support coated with a layer containing a pigment, a resinous binder and 2 to 20% by weight based on all solids in the layer of an emulsified polyalkene, paraffin wax, rosin or mixtures of rosin and paraffin wax, and overcoated with a diazotype layer. The emulsified material may also be coated on the back of the support or included in the light-sensitive layer with or without the pigment or binder. In the examples, a paper support is coated with silica, polyvinyl acetate or corn starch modified by treatment with phosphorus halide and emulsified polyethylene, paraffin wax or a paraffin waxrosin mixture and then coated with a1- or 2-component diazotype layer.
Patent GB-140225-A (GB)
Title: Improvements in locks for attache, blouse, suit, and the like cases, and in the manufacture of the same
IPC: E05B65/52
Filed: 1919-04-07
Abstract: 140,225. Butlers, Ltd., and Reeves, A. April 7, 1919. Hasp locks; locking sliding latches; spring mechanism.-In a lock for attachÚ cases &c., the bolt c, which locks the latch a in position by the engagement of the shoulders c<1>, a<1>, is itself provided with an extension c<2> which takes into the catch-plate. A single spring d, secured to the back-plate at b<4>, and held by a bent tongue b<10>, controls both the locking-bolt and the latch. Pins b<2>, b<3> engaging in slots c<3>, c<4> guide the bolt, and one or more stamped-up tongues b<7> guide the latch. The parts are assembled on the backplate, and the cover is then placed in position, the stem of the latch-button being passed through a hole a<3>, and riveted over, access to it being had through a hole in the back-plate.
Patent GB-1306532-A (GB)
Title: Expansion sleeve for pipe couplings in heating installations
IPC: F16L47/18
Filed: 1970-02-24
Abstract: 1306532 Pipe joints; joint-making packing MANUFACTURES DE CABLES ELECTRIQUES ET DE CAOUTCHOUC SOC ANON (KABELUND GUMMIWERKE AG) 24 Feb 1970 [6 Feb 1970] 8725/70 Headings F2B and F2G An expansion joint for pipes 1, 11 comprises a sleeve 2 having an internal circumferential groove, and a resilient sealing ring comprising two annular beads 4 of circular or rectangular section interconnected by a narrow web 5, the ring 3 being located in the groove in such manner that an air cushion 6 is formed between the groove beads and web. The air cushion serves to urge the web into sealing sliding engagement with the pipe 11. The joint is particularly suitable for plastics pipes which would be deformed by a conventional 0-ring. Various different detailed embodiments of the sealing ring and groove are given (Figs. 2A-2F, 3A- 3D, not shown) wherein (i) a circumferential ridge in the groove separates the beads, (ii) the beads have axial flanges directed towards each other, (iii) the beads have axial flanges directed away from each other, the flanges being located in undercuts adjacent the base of the groove, (iv) the web has circumferential ridges on its sealing face ,(v) the walls and base of the groove are merged in a continuous curve.
Patent GB-236625-A (GB)
Title: Improvements in and relating to locks
IPC: E05B23/00
Filed: 1924-04-07
Abstract: 236,625. Niedmann, F. von. April 7, 1924. No Patent granted (Sealing fee not paid). Locks, revolving- barrel; boards for; key-pins; latches, lift. - A revolving barrel lock has bentarm tumblers pivoted transversely to the axis of the barrel at successively greater distances from the front of the lock, and the key is guided by a key-pin. Ward plates are situated between the tumblers and the barrel-follower lifts a pivoted latch. The barrel 5 has a box-like projection 32 in which the tumblers 36, 39 are. pivoted at 37, 40 respectively. The tumblers are pressed outwardly by springs 38, 41 so that their ends engage between the fixed stops 44, 43 on the cover-plate. When the key is inserted and partially turned, cam-faces 60 and 47 thereon respectively raise the lower ends 45, 48 of the tumblers and withdraw the other ends within the barrel. The insertion and turning of the key thus far has brought a feather 61 on the barrel into a slot 62 in the key, via the opening 46, so that continued turning of the key rotates the released barrel to enable the follower 35 to release the locking pin 13, the lower end of which is bevelled for this purpose, and lift the latch 4. The key is guided by the key-pin 30 and a wardplate 49 requires the slot 63 to be cut in the key.
Patent GB-726245-A (GB)
Title: Process for the preparation of iodine-polyvinyl-pyrrolidone by dry mixing
Filed: 1953-03-30
Abstract: A polyvinyl pyrrolidone-iodine composition is produced by thoroughly mixing elemental iodine and powdered polymeric 1-vinyl-2-pyrrolidone and heating the mixture, preferably at 90-100 DEG  C., until the ratio of available iodine to iodide ion in the composition is substantially 2 : 1.  The iodine is stated to be present in the composition as available iodine, iodide ion and bound iodine and methods of determining the percentage of each are described. Specification 680,968, [Group VI], is referred to.ALSO:A composition which provides iodine in a germicidally and bactericidally active form, is produced by thoroughly mixing elemental iodine and powdered polymeric 1-vinyl-2-pyrrolidone and heating the mixture, preferably to 90-100 DEG C., until the ratio of available iodine to iodide ion in the composition is substantially 2 : 1.  The iodine is stated to be present in the composition as available iodine, iodide ion and bound iodine and methods of determining the percentage of each are described.  Specification 680,968 is referred to.
Patent GB-904784-A (GB)
Title: Improvements relating to lighting fittings
IPC: F21V17/00
Filed: 1960-03-12
Abstract: 904,784. Ornamental lanterns. WOOD, J. H., BAXTER, S., TOMLINSON, W. R., and LEESON, A. E. June 12, 1961 [March 12, 1960], No. 8797/60. Classes 75 (2) and 75 (4). A lighting fitting comprisea a hollow opaque frame having a plurality of openings in which are located transparent or translucent elements of hollow cup-like formation with their hollow sides facing inwards, made from synthetic resinous material. In the form shown, the lantern comprises four sides 11 and a frusto-pyramidal top 13 which overhangs the sides in the manner of eaves and is constructed of sheet-metal united by soldering, brazing or welding. Each side has a number of roughly rectangular openings in which are inserted transparent or translucent elements 15 of hollow cup-shape made, e.g., of cellulose acetate. Each surface of the tap 13 has a single similar opening provided with a similar transparent or translucent element 15. A support plate 16 having a central opening is provided in the top 13 for attachment of the fitting to an electric lamp holder. The elements 15 have boundary flanges 23 by which they may be secured in the openings by adhesive. Alternatively, or in addition, a rigid backing- member of colourless transparent material 24, e.g. glass, may be secured inside each of the sides by metal tongues 25 secured to the top and bottom of the side to retain the elements 15 in position. The elements 15 may be of varying size and may be coloured. They are preferably so arranged that no two elements of the same size or colour are adjacent to one another.
Patent GB-590748-A (GB)
Title: Improvements in and relating to barometric liquid fuel valves for aircraft
IPC: F23N5/06
Filed: 1945-04-10
Abstract: 590,748. Fluid-pressureservomotor - control systems. BRITISH THOMSONHOUSTON CO., Ltd. April 10, 1945, No. 8922. Convention date, April 12, 1944. [Class 136] The quantity of fuel oil supplied to the nozzle 3; Fig. 1, of an aircraft engine is adjusted by byepassing some of the fuel through an altitude controlled fuel valve 8 back to the suction side of the fuel pump 1. At high atmospheric pressures, i.e. low altitudes, an evacuated bellows 69, Fig. 2, whose external surface is exposed to atmospheric pressure, contracts and through a floating lever 66 lifts a pilot valve 56 to permit fuel oil to pass from an inlet pipe 7 to a cylinder 78, via a duct 35, pressure reducing valve 42 and ducts 39, 81, to depress a piston 77. A spring 79 is interposed between the piston and the stem 22 of a valve control member 20 which moves to reduce the opening of the ports 23 therein and thus the amount of fuel byepassed to the pump through pipe 9. At high altitudes and low atmospheric pressures, the pilot valve 56 is lowered by the.distension of the bellows 69, thus opening the cylinder 78 to the suction side of the pump via. duct 81, pilot valve openings 53, 55, the bore 59 of the pilot valve and the pipe 10, which thereby relieves the pressure on the piston 77 which then moves upwardly and thus reduces the compression on the spring 79 and allows the control valve 20 to move to increase the opening of the ports 23 and permit an increase in the amount of fuel byepassed to the pump. Downwardly extending lugs 76 on the piston skirt are connected to a forked extension 75 of the lever 66 which moves the pilot valve 56 to a position where a state of balance exists between the pressure on the bellows and the opening of the ports 23. A spring-loaded ball relief valve 45 opens when the pressure on the top of the piston 40 in the pressure reducing valve 42 exceeds a predetermined value.
Patent GB-739526-A (GB)
Title: Improvements in and relating to hybrid junctions in micro wave transmission apparatus
IPC: H01P5/20
Filed: 1954-03-26
Abstract: 739,526. Wave - guide hybrid junctions. SPERRY CORPORATION. March 26, 1954 [April 30, 1953; April 30, 1953], No. 8930/54. Class 40 (8). A hybrid junction comprises two branch arms 14, 15 and a pair of line arms 12, 13 constituted by a single hollow pipe 10 having central longitudinal septum 11. The pipe 10 is of square section and, in the construction of Fig. 1, is connected to the series arm 14 and shunt arm 15 by means of tapered sections 16, 17. The branch arms 14, 15 are matched to the line arms 12, 13 by correct positioning of the edge 11, of the septum 11 in the tapered section 16 and by the provision of an extension 11<SP>2</SP> of the septum within the tapered section 17. The shunt arm may be in the form of a coaxial line 15, Fig. 4, whose inner conductor 22 is connected to a tapered portion of the septum 11 extending within the tapered section 16. In the construction of Fig. 6, the series arm 14 is formed by two blocks 23, 24 having tapered portions 23<SP>1</SP>, 24<SP>1</SP> which extend into the junction a distance equal to the shorter dimension of the arm 14. The blocks are tapped at 23<SP>2</SP>, 242 to receive connecting bolts. To improve the matching the tapered portions of the blocks extend into the shunt arm 15. For the same purpose a portion 11<SP>5</SP> of the septum 11 extends a distance #/4 beyond the termination 11<SP>1</SP> of the septum. The upper horizontal edge 11<SP>6</SP> of the portion 11<SP>5</SP> is spaced a distance #/2 from the end of the shunt arm 15. A further (tapered) portion 11<SP>2</SP> of the septum extends into the arm 15 which is constricted in the region of the junction by a block 25.
Patent GB-724982-A (GB)
Title: Improvements relating to foam-stabilising materials
IPC: A62D1/02
Filed: 1953-03-31
Abstract: 724,982. Foam compositions. PYRENE CO., Ltd. March 31, 1953 [April 4, 1952], No. 8932/53. Class 47. An aqueous foam-stabilising solution comprises a mixture of a water-soluble product of the degradation of a protein, a water soluble metal salt, a fatty acid containing from 6 to 12 carbon atoms, and an amine which will both saponify the acid and form a soluble complex with the metal salt. Salts of zinc, copper or cadmium such as zinc or cadmium chloride may be used. Examples of fatty acids are capric, caprylic and nonylic acid. Suitable amines are the alkanolamines, primary aliphatic amines, alkylenediamines and polyalkylene-polyamines, and morpholine. Specifications 517,767, 517,812 and 524,798 are referred to.
Patent GB-268810-A (GB)
Title: Electrically heated flat-iron with various adjustable temperatures, which then automatically remain constant
IPC: H05B1/02
Filed: 1927-03-31
Abstract: 268,810. Jerike, J. March 31,1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 4, 1927.] Thermal switches. - An electrically heated flat iron is maintained at a constant temperature by the use of a thermal switch as described in Specification 268,812, [Class 64 (ii), Heating systems &c.]. The thermal element comprises a series of rigid brass, or aluminium bars 3 and diagonal steel bands 4, and the temperature to be maintained is determined by adjusting an eccentric 5. Uniformity of temperature between the base plate 1 and the thermal element is maintained by an element 2<a> of copper. One end of the thermal element is attached to the short arm 6<a> of bell crank lever, the long arm 6b of which may have a constraining force applied to it in the direction p<1>, and may operate any desired contact device for varying the heating. A modification is described (Figs. 3 and 4, not shown) in which the thermal element is arranged at right angles to that of Fig. 1, and a controlling spring completes the circuit. Specification 268,811 also is referred to.
Patent GB-199493-A (GB)
Title: Improvements relating to printing machines
IPC: B41F13/60
Filed: 1922-03-29
Abstract: 199,493. Halley, J. March 29, 1922. Cutting and perforating apparatus.-Mechanism for transversely cutting or perforating a web before or after printing in a cylinder or rotary machine, and of the kind which is carried by a cross-head reciprocating lengthwise of the web and is actuated to make the cut at the moment the crosshead is moving at the same speed as the web, comprises a cutting-blade or perforating- tool 17 fixed to the crosshead 18, which is reciprocated along guides 19 by a crank and connecting rod, and a co-acting blade or tool 16 carried by arms 21 pivoted at 22 to the crosshead. One of the arms 21 has an extension 21<a> carrying a roller 23 adapted to engage a cam 24a on a pivoted lever 24 raised at the right time for cutting &c. by a cam 38 on a rotating shalt of the machine. The cutter 16 is held normally in raised position by a spring 39. On the backward motion of the crosshead the lever 24 is sufficiently lowered to enable the roller 23 to ride over the cam 24<a> without cutting the web. Spring-pressed feet 27 in the arms 21 hold the web whilst it is being cut.
Patent GB-1535474-A (GB)
Title: Sheet stack control equipment
IPC: B65H1/26
Filed: 1977-03-03
Abstract: 1535474 Automatic control systems POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 3 March 1977 [15 March 1976] 08996/77 Heading G3R The height of a stack of sheets e.g. in a printing machine is maintained between desired limits by periodically driving the stack upwards by energization of relay 9 in dependence on detection at 1 that the stack has fallen below the prescribed minimum height, termination of the upward drive being by timing out of a multivibrator 5, or detection of maximum height at 2 depending on the speed of the machine and the selection of "thin", "normal" or "thick" on the sheet thickness selector 11. In the latter case the multi-vibrator output is overidden at high speeds of operation by resetting of bistable 8; and on selection of "thick" sheets by a signal at 11-1, both preventing the timing-out of multivibrator 5 from affecting the input X 1  by disabling NOR gate 6 and thereby making de-energization of relay 9 dependent solely on output of trigger element 3 in response to paper being sensed at the upper limit 2.
Patent GB-1528555-A (GB)
Title: Method for preparation of polymers of lactams having an enhanced electric conductivity
IPC: H01B3/30
Filed: 1977-03-03
Abstract: 1528555 Conductive polylactams CESKOSLOVENSKA AKADEMIE VED 3 March 1977 [30 April 1976] 09021/77 Heading C3R Polyamides of specific electrical resistance not above 10<SP>9</SP> Q.cm. at 50% R.H. and 250‹ C. are obtained by anionic polymerization of lactams having 7 to 13 ring atoms to which have been added 2 to 20 wt.% of anhydrous plasticizer and in which 1 to 50 wt.% of ground graphite and/or carbon black is suspended.
Patent GB-493060-A (GB)
Title: Improvements in and relating to electric immersion heaters
IPC: H05B3/78
Filed: 1937-03-30
Abstract: 493,060. Electric immersion heaters. BRITISH THOMSON-HOUSTON CO., Ltd., SIMS, W. J., and FELLA, J. H. March 30, 1937, No. 9063. [Class 39 (iii)] A strip of tinned copper is wound helically around an immersion heater with the edges of the strip abutting and the surface of the strip in good contact with the outer surface of the heater. When descaling is necessary the strip is unwound and replaced by a new strip.
Patent GB-751644-A (GB)
Title: Combined beet lifting and topping machine
IPC: A01D23/04
Filed: 1954-03-29
Abstract: 751,644. Harvesting root-crops. ANDERSON S. A. March 29, 1954 [March 30, 1953], No. 9102/54. Class 6 (3). A beet-harvester comprises a pair of endless chains guided in closed channels 4, 5, the chains being fitted with conveyer units resilient transversely to the direction of travel so as to enable beets to be gripped between the chains and the tracks are arranged to converge adjacent to a lifting share 6, to remain parallel so that the conveyer units can carry lifted beets past a topping knife 7 and subsequently to diverge so that the cut tops can be discharged into a receptacle 30 or on to a second conveyer. The machine frame 1 is provided with landwheels 2 and carries the two tracks of roughly oval shape with arouate forward portions 23, straight convergent portions 21 and upper divergent portions 22. The conveyer units comprise spring-loaded plungers 8 carried by bushes 9 mounted on links 14 of a chain which runs within the channel sections of the tracks; the links also include rollers 11, 13, running on the inside surfaces of these channels. The links of the chains are engaged by sprockets 26 on an axle 25 driven from the towing vehicle. The ends of the plungers 8 are interconnected by links 19 to form a second chain resilient in several directions. In order that the beets may be topped at a constant height, a second chain is formed by links 38 interconnecting the free ends of plungers 36 carried by bell-cranks 33, 34 pivoted about the plungers 8. The free ends of the bellcranks carry rollers 31 engageable with a fixed track 39 adjacent to the topping knife 7 so that the beets are pushed down to a predetermined position 41b in relation to the knife 7 immediately prior to topping. The topped beets are discharged on to the ground.
Patent GB-790057-A (GB)
Title: Apparatus for measuring load in thrust bearings
Inventor: THOMAS JOHN RGINALD
IPC: G01L1/22
Filed: 1955-03-30
Abstract: 790,057. Electric measuring systems. THOMPSON (WOLVERHAMPTON), Ltd., J. March 16, 1956 [March 30, 1955], No. 9218/55. Class 40 (1). Apparatus for measuring the load on axial thrust bearings 10 (Fig. 1) comprises a sleeve 11 with radially projecting end flanges 12, 13, located in the direction of the thrust, a group of electric resistance strain gauges 22 &c. being' fixed to the inner and outer cylindrical surfaces of the sleeve and connected in bridge measuring circuits so that the stress and strain on the inner and outer surfaces of the sleeve 11 may be determined..
Patent GB-940073-A (GB)
Title: An improved printed circuit panel and a method of making same
Inventor: CLARK GEOFFREY WILLIAM
IPC: H05K3/24
Filed: 1961-03-14
Abstract: 940,073. Switch contacts. PRESSAC Ltd. March 12, 1962 [March 14, 1961], No. 9231/61. Heading H2B. [Also in Division H1] A printed circuit panel, such as the switch stator shown, comprises an insulating base 1 on which a stamped circuit 2, e.g. of copper, is mounted, and bi-metal wafers 4 which are applied to overlap terminal parts of the circuit by a die-stamping operation during which two edges of the wafers are deformed around the terminal parts to affix them to the base; they may subsequently be soldered to the terminal parts.
Patent GB-748113-A (GB)
Title: Speedometer
IPC: G01P3/30
Filed: 1954-03-30
Abstract: 748,113. Speedometers. SOC. ALSACIENNE DE CONSTRUCTIONS MECANIQUES. March 30, 1954 [April 2, 1953], No. 9310/54. Class 106 (3). A fluid-operated speedometer designed to reduce to a minimum friction between the moving parts comprises a piston 2 slidable axially in a cylinder 1 secured to the shaft 5, the speed of which is to be measured. The piston is rotatably coupled to the cylinder by fins 7, 11 and has passing through it a non- rotating sleeve 4 in communication with a pitot tube 21. As the shaft rotates, liquid in a chamber 9 secured to the cylinder passes through the tube 21 and sleeve 4 into a chamber 24 between the piston head and cylinder end, there forming a centrifugal head which advances the piston and sleeve against a spring 3 to move a rod 23 operating indicating mechanism. Liquid from the chamber 24 enters a space 25 in the piston and passes through holes 16 into spaces 15 formed by flats on the cylinder periphery, thus providing lubrication against axial friction, the overall diameter of the piston being such as to allow clearance for the escape of the fluid.
Patent GB-885056-A (GB)
Title: Electronic storage tube
IPC: H01J31/18
Filed: 1960-03-16
Abstract: 885,056. Cathode-ray storage tubes. HUGHES AIRCRAFT CO. March 16, 1960 [March 18, 1959], No. 9327/60. Class 39(1) In an electronic storage tube for half-tone visual display, a storage screen 22 comprises a conductive screen provided with a uniformly thin layer of insulating material having a secondary emission ratio greater than unity over the first continuous range of electron energy levels between first and second crossover potential levels, and exhibiting electron bombardment induced conductivity characteristics throughout a second range of electron energy levels which substantially overlaps the first range. The conductive screen is maintained positive with respect to the potential of the storage surface by an amount less than the first crossover potential, and the storage surface is scanned by an electron beam of an electron energy level within the second range so as to be charged in positive directions by both secondary electron emission and bombardmentinduced conductivity. A visual presentation of the consequent charge pattern is produced on viewing screen 18 by means of flood electrons from viewing gun 16. Preferably the storage screen comprises a rhodium-plated, electroformed nickel mesh provided with a 0.65 micron thick coating of cubic zinc sulphide by an evaporation process, ageing at 70 to 80‹F. for one month causing all the zinc sulphite to be converted to the cubic lattice type. To enhance secondary emission a 500Š thick layer of magnesium fluoride is evaporated over the zinc sulphide layer. A thin film of gold may then be provided on the opposite face of the mesh, suitable dimensions of which are given. In order to maintain the storage surface at a quiescent potential that is negative relative to the potential of cathode 80 of viewing gun 16, positive pulses are applied to the nickel mesh at a repetition rate that is greater than the flicker rate. Specific operating potentials of the various electrodes are given.
Patent GB-1439823-A (GB)
Title: Contact lens storage
IPC: A45C11/00
Filed: 1973-02-26
Abstract: 1439823 Contact lens storage box NU-SYTE LABORATORIES Ltd 30 Nov 1973 [26 Feb 1973] 9334/73 Heading G2J A contact lens storage box is provided with three or more lens receiving cavities 5 each of which is connected to a pluggable drainage passage 7. As shown, twenty cavities are arranged in four rows, the cavities in each row being interconnected by a passage 7. Each cavity or passage has a closure member.