baber/WOPTO huggingface dataset:
Patent GB-1060769-A (GB)
Title: Control of temperature-sensitive circuit elements
Inventor: ANDERSON JOHN LEANDER
IPC: H03K3/38
Filed: 1964-07-02
Abstract: 1,060,769. Circuits employing superconductors; transistor sawtooth generators. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 4, 1965 [July 2, 1964], No. 27307/64. Headings H3B and H3T. [Also in Divisions G1 and H1] Bias and control currents for an array 43 of cryotrons in a liquid helium bath 47 and the current supplied to one or more heaters 65 are controlled in response to variations in the critical field of one or more temperaturemonitoring cryotrons 29. As shown in Fig. 4, the control conductor 31 of a temperaturemonitoring cryotron 29 is supplied with a ramp wave from a driver circuit 79 and when the critical field is reached the sudden appearance of a voltage drop across the cryotron gate element 11 is used to cause cessation of the ramp wave. The heater current (or bias or control current) is proportional to the peak of the ramp wave which is in turn dependent on the temperature of cryotron 29. The ramp wave is restarted by the next clock pulse from source 69. The rate of charging of capacitor 87 in the ramp wave driver 79 (and hence the duration of the monitoring cycle) is controllable by variable resistor 91. Variable resistor 95 in the gate driver circuit 81 enables the current supplied to the temperature-monitoring cryotron gate element to be adjusted. Temperaturemonitoring cryotrons may be provided on each substrate of array 43 for controlling the bias and control currents of the cryotrons on the respective substrates and a separate temperaturemonitoring cryotron may control the heater current. The liquid helium bath is surrounded by a vacuum jacket 51 and a liquid nitrogen vessel 53. Helium vapour from the bath 47 is condensed by a condenser 59 supplied with liquid helium. Duct 57 leads to a source of constant pressure. Transistor sawtooth generator.-A negativegoing ramp wave is generated in a ramp driver circuit 79 by charging a capacitor 87 from a source 89. The ramp wave is terminated when either diode D1 or D2 in OR gate 103 becomes conductive. The ramp wave is applied to the control conductor of a cryotron 29 and, when the critical field is reached, the sudden appearance of a voltage drop across the cryotron gate element 11 renders transistor T9 conducting, thereby sending a pulse via diode D1, trigger 71 and gate 75 to cause transistor T5 to conduct and discharge capacitor 87. If the critical field is not reached before capacitor 87 is charged to a predetermined voltage, diode D2 becomes conductive. The ramp wave is restarted on the next clock pulse from source 69.
Patent GB-774310-A (GB)
Title: Improvements relating to bed-settees and the like
IPC: A47C17/13
Filed: 1954-09-17
Abstract: 774,310. Bed-settees. HENNESSY, J. J. Feb. 25, 1955 [Sept. 17, 1954], No. 27061/54. Classes 52 (2) and 52 (4). A bed settee has a seat portion 1 supported on an extensible frame formed by battens 2 of which alternate battens are secured to a front board 3 with side members 4 so as to be withdrawable to expand the bed settee to twice the size of the settee and a mattress formed in two sections 9, 10 connected by ticking 11 so as to be foldable, the bed clothes, with the bed made, being folded over and received in the cavity 12 between the two sections of the mattress and held in position by a covering secured by press-studs to the mattress or folded in a sleeping bag.
Patent GB-687938-A (GB)
Title: Improvements in or relating to pressure vessels suitable for use as bomb calorimeters
IPC: G01N25/26
Filed: 1949-10-21
Abstract: 687,938. Measuring heat quantities. HODGES, F. A. J., and MODERN TECHNIQUES, Ltd. Oct. 23, 1950 [Oct. 21, 1949], No. 27128/49. Class 97 (iii). [Also in Group XVIII] The closure cap 3 of a bomb calorimeter pressure vessel 1 is formed as a collar provided with a radially extending flange 9 which is forced by the action of compressed gas within the vessel against a sealing ring 4 on the underside of a metal ring 5 and with a frusto-conical aperture which receives an electrode 10 of similar form, larger on the inner side than the outer side of the cap. The electrode is separated from the cap by an insulating sleeve 11 which stops short at the bottom of the cap to form an annular space which is filled with cement for protection of the sleeve 11, annular keying slots 23 being provided to retain the cement in place. The metal ring 5 is formed with two or more spaced segments 7 adapted to engage under corresponding spaced segmental ledges 8 formed in the body of the vessel. During assembly of the calorimeter, the flange 9 sets on a ledge 2 in the body of the vessel. A cylindrical bore 16 in the electrode is closed at its inner end by a rod 19 and at its outer end by a valve 17 and communicates with the interior of the vessel by radial bores 21 drilled in the electrode. The cap is provided with a rod 24 adjustably supporting a crucible carrier and both rods 19 and 24 have notches for carrying electric leads and with loose sleeves 20 for pulling over the notches to retain the leads. The ledge 6 of the vessel on which the ring 5 rests is formed as an annular trough 25. The exterior of the vessel may be provided with fins formed, e.g. by a multi-start screw thread. Specification 408,396 is referred to.
Patent GB-840733-A (GB)
Title: Improvements in or relating to measuring elements for measuring of forces
IPC: G01L1/22
Filed: 1956-09-05
Abstract: 840,733. Measuring strain. VYZKUMNY A ZKUSEBNI LETECKY USTAV. Sept. 5, 1956 [Sept. 9, 1955], No. 27162/56. Class 40 (1). A load-measuring cell comprises a cylindrical or parallelepipedal body having strain gauge windings closely wound in grooves or tunnels. As shown, the body has an axial bore 2 and the bottom of the grooves 3, 4 carrying the wire are shaped as shown in Figs. 2 and 3 so that forces applied in the directions S increase the strain in one coil and reduce it in the other. If the windings are otherwise identical and are connected as adjacent arms in a bridge circuit they compensate each other for variations of resistance due to temperature changes and ageing.
Patent GB-1200471-A (GB)
Title: Fluid pressure or fluid flow control device
IPC: F25D29/00
Filed: 1967-07-26
Abstract: 1,200,471. Fluid-pressure servomotor systems. KOEHLER-DAYTON Inc. July 26, 1967 [July 26th, 1966], No.27194/67. Heading G3P. [Also in Divisions F4 and G1] A fluid-pressure servo-controller suitable for regulating a valve in the nitrogen supply line to a cold-room (see Division F4) has a chamber 94 supplied from the refrigerant tank via a passage leading from inlet chamber 118. From chamber 94 the gas passes to the chamber behind diaphragm 88 via restricted orifice 101, and from this chamber a leakage path is defined by passage 107, passage 152 in shaft 110 and opposed angularly adjustable orifices 156, 157 Fig.9. A cam disc 160 is rotatably coupled to the indicator arm 62 of a Bourdon gauge by tab 163, and a lobe on the disc enters the space between the orifices 156, 157 when the arm 62 indicates the desired cold room temperature. The pressure thereby rises behind diaphragm 88 and the latter engages seat 117 and unseats vent poppet 125 from smaller seat 130 to allow main valve (20) to close. When arm 62 moves the cam lobe away from the orifices 156, 157, the pressure drops behind the diaphragm 88 and the latter moves leftwards to seat the vent poppet and connect chamber 118 to outlet 121 to open valve (20). The temperature probe is a phial containing carbon dioxide in gas and liquid form, the Bourdon tube filled with nylon, metal or p.t.f.e. or with a liquid (grease or mercury) or a settable material to prevent migration of the gaseous carbon dioxide. In other embodiments of the controller, guage could be replaced by a voltmeter, ammeter a speedometer for example. The controller could be reverse-acting and the disc 160 could co-operate with more than one pair of opposed orifices.
Patent GB-519312-A (GB)
Title: Improvements in or relating to piston type shock absorbers
IPC: F16F9/43
Filed: 1938-09-19
Abstract: 519,312. Hydraulic shock-absorbers. NEWTON, N. B. Sept. 19, 1938, Nos. 27219/38 and 8765/39. [Class 108 (iii)] In a hydraulic shock absorber having a reservoir or recuperative chamber, a loaded automatic relief valve is provided in the upper part of the reservoir together with, a filling means for admitting fluid. As applied to a piston type shock absorber, a duct 11 leading from the upper end cap 10 is fitted with a standard grease nipple 13 and a spring-loaded non-return valve 14 through which fluid is supplied. An outlet valve unit 15 in the cap 10 has a non-return valve 16 through which surplus fluid passes to an outlet duct 17. A shock absorber of the rotary vane type or the opposed piston type may be similarly fitted. Fig. 6 shows a screwed plug 31 in which the two valves . are combined, a central stem part 32 having its lower end 33 pressed by a spring 34 to seat against the plug, arid being guided by a nut 35 in which are formed release holes 36. The upper end of the stem forms a nipple for a fluid supply connection, the fluid entering through a central bore 37 and past a spring- pressed valve 38.
Patent GB-1018424-A (GB)
Title: Improvements in or relating to the production of bags
IPC: B31B50/00
Filed: 1963-07-10
Abstract: 1,018,424. Making bags on mandrels. SCHWEIZERISCHE-INDUSTRIE-GESELLSCHAFT. July 10, 1963 [July 11, 1962], No. 27249/63. Addition to 913,086. Heading B5D. The rollers of the parent Specification which transfer a longitudinally seamed tube 12<SP>1</SP> from an auxiliary mandrel 4 to a main mandrel 16, on which bag bottom folding and welding operations are performed, are replaced in the present Specification by a pair of tongs 24 slidable in a groove 29 of the main mandrel 16. In the embodiment shown the tongs 24 comprise an upper jaw fixed to a tongs slide 25 slidable on bars 26 under the action of a lever 27, and a lower jaw pivoted to the tongs slide, urged into closed position by a spring 33 but openable by raising an opening rail 30 on levers 32. A tube 12<SP>1</SP> is formed and sealed on the mandrel 4 which then slides axially so that the tube is inserted between the jaws of the tongs which are brought to the position shown in broken lines. The jaws are then closed and slide to the position shown in solid lines drawing the tube 12<SP>1</SP> with them from the auxiliary mandrel 4 to the main mandrel 16 till it abuts a stop 34. The jaws then release the tube and the main mandrel rotates to its next position as the tongs return to their original position.
Patent GB-390202-A (GB)
Title: Improvements in machinery for manufacturing metal articles of angular and/or corrugated shapes from rolls of hoop iron or other metals
IPC: B21D53/36
Filed: 1931-09-30
Abstract: 390,202. Making binding-strips for crates, boxes, &c. WAKEFIELD, W., Judd Street, Richmond, near Melbourne, Australia. Sept. 30, 1931, No. 27264. Convention date, Oct. 22, 1930. [Classes 83 (ii) and 83 (iv).] Punching ; angular bendings.-In a machine for forming binding-strips for crates &c. a strip is notched as shown in Fig. 23 divided longitudinally by a punching operation which forms teeth d, and each strip is then bent as shown in Fig. 21a. The strip a is fed to the position A by ratchet-driven rollers 25 from a shaft 9 on to a die-plate, Fig. 6, with co-operating punches 43, 44, 45. The punches are operated by a slide 48 driven by the shaft 9 and carrying a gag roller 46 controlled in position by a ratchet 57 connected to a ratchet 63 carrying a master cam 68. The master cam co-operates with a projection 70 on a telescopic rod 30 of the feed roll ratchet drive to control the feed according to the dimensions of the strip required. The strip passes across the die-plate and the punch 45 cuts the tangs 107, the punch 43 cuts the tangs 86, the mitreing punch 44 then functions twice to cut the notches 92, and the punch 45 operates to sever the length. By adjusting the master cam the length of strip between the cuts is varied. The strip is then fed to the dies 115 and sloping holes b, c are punched which sever the strip longitudinally and form teeth d. The two strips then are fed over bending dies 126 on which they are bent to shape, Fig. 21a. Rollers 159 coupled to the feed rollers deliver the strips from the machine. To position the strip a pin, Fig. 13, (not shown) is projected into a hole punched in the strip on the die 115.
Patent GB-194660-A (GB)
Title: Improvements in photographic processes
IPC: G03F7/038
Filed: 1922-10-09
Abstract: 194,660. Wadsworth Watch Case Co., (Assignees of Beebe, M. C.). March 8, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Bichromated colloid and like processes; photomechanical printing-surfaces; ornamental photographs; plates and films; toning.-A sensitive coating, more particularly for the production of images on metal, films, glass &c., comprises a resinous or gum varnish with which is incorporated a photo-sensitive oil such as tung oil, to which may be added an accelerator such as ferric oxide, zinc oxide, manganese dioxide, or lead iodide. When exposed to a projected image, or under a negative, the exposed parts are rendered more soluble than the unexposed parts. An example for the production of a red positive is described, in which a resinous or gum varnish containing 3 per cent of iodine is spread upon a surface and exposed to an image until the coating feels dry or partly tacky. The duration of exposure varies from a few seconds to a few minutes, according to the sensitiveness of the coating. The print is dipped into oil coloured red with carbon tetrachloride for a quarter of a second, the image is then developed in benzine, and the print is dried. The coating is stated to be useful in the production of photo engravings and in all cases where a strong acid-resisting coating is required.
Patent GB-889151-A (GB)
Title: Improvements in dyeing apparatus
Inventor: LUCZYNSKI WLADYSLAW FILIP
IPC: D06B3/10
Filed: 1959-08-11
Abstract: <PICT:0889151/IV (c)/1> <PICT:0889151/IV (c)/2> Apparatus for the continuous dyeing of textile material comprising means for impregnating the material with dye liquor, an elongated substantially vertical chamber 7 having an extrance at the upper end thereof and an exit at the lower end thereof, means for heating the interior of the chamber and means for passing the impregnated material through the chamber in a downward direction wherein the means for impregnating the material with dye liquor comprises at least a pair of rollers 70a and 70b, each having a serrated peripheral edge and mounted for rotation upon a common shaft 73, separate baths 3 associated with each roller containing different coloured dye liquors so that the roller is partly immersed in said liquor (when the apparatus is in use), and means for passing the fabric 1 to be dyed over and in contact with the rollers.  A central division 72 may divide the bath into two compartments in which different dye liquors are placed.  The above apparatus enables material to be dyed in two or more colours in parallel strips and the rollers are spaced sufficiently apart for the different dye liquors to merge with one another but not to overlap at the join.
Patent GB-889657-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: B08B9/027
Filed: 1958-08-26
Abstract: 889,657. Flue tube baffles. JORGENSEN, E. V. S., and JORGENSEN, S. C. S. Aug. 26, 1958, No. 27366/58. Class 51 (1). [Also in Groups XIII and XXVIII] A helical partition 3 is mounted within a boiler flue tube on a shaft 4 which by means of a handle 9 at one end thereof, may be rotated or reciprocated so that the partition 3 scrapes clean the inner surface of the tube 2. When the helix is only reciprocated the cross-section of the tube may be polygonal.
Patent GB-154426-A (GB)
Title: Improvements in and relating to indicators for theatre and like seats
IPC: A47C1/13
Filed: 1919-11-07
Abstract: 154,426. Lees, S. Nov. 7, 1919. Seats combined with umbrella stands, - Reserved indicators a for a row of tip-up seats in theatres &c, are secured to bars or strips of wood placed along the row above the upper edges of, and supported by brackets secured to, the seat backs. When the backs of the seats are curved, the spaces t (shown in plan, Fig. 8) between the rails and the backs of the seats may serve to retain umbrellas &c.
Patent GB-620510-A (GB)
Title: Cloth roll mechanism for loom
IPC: D03D49/20
Filed: 1946-09-13
Abstract: 620,510. Loom take-up motions. CROMPTON & KNOWLES LOOM WORKS. Sept: 13, 1946, No. 27579. Convention date, Sept. 24, 1945. [Class 142 (ii)] A loom has a cloth roll 19 supported by levers 25, 26. pivoted at 27 so that it can be swung away from the take up roll 14 when removing a cut of cloth. The levers 25, 26 are connected by rods 64 to arms 62 secured to a shaft 60 which can be rotated by a pedal 75. Cables 33, 34 have their upper ends connected to the spaced levers 25, 26 and their lower ends connectedtosheaves 35 secured to a shaft 36. A torsion spring 44 wound about the shaft 36 and having one end anchored to the loom frame and the other end operatively connected to a disc 41 which turns with the shaft 36, tends to keep the cloth roll in contact with the take-up roll. Depression of the pedal 75 moves the cloth roll downwards out of engagement with the take-up roll. A worm 69 engaged by ratchet teeth 68 on a hooked member secured to the shaft 60 prevents the cloth roll moving upwards under the action of the spring. Rotation of a handle 72 on the worm shaft brings the cloth roll into contact with the take-up roll. The ratchet teeth 68 slide over the worm when the handle is rotated after the cloth roll and the take-up roll are in contact. U.S.A. Specification 2,057,409 is referred to.
Patent GB-1090604-A (GB)
Title: Process for the production of petroleum resins for use in the preparation of paper-sizing agent
IPC: C08L57/02
Filed: 1966-06-21
Abstract: A petroleum resin for use in the manufacture of paper-sizing agents is prepared by copolymerizing a petroleum fraction containing diolefins having five carbon atoms and having a boiling-point of from 20 DEG  to 100 DEG  C. with a petroleum fraction containing at least one compound selected from styrene and its alkyl derivatives and having a boiling-point of from 140 DEG  to 280 DEG  C. in such a proportion that the resulting copolymer has a bromine number of more than 25 and a softening point of more than 35 DEG  C., the content of cyclopentadiene contained in the fraction of boiling-point from 20 DEG  to 100 DEG  C. being controlled below 10% by weight and both fractions being obtained by thermal cracking of petroleum fractions. The fractions are generally obtained by thermally cracking oil of naphtha at high temperatures, i.e. from 700 DEG  to 900 DEG  C.  The cyclopentadiene content of the low boiling fraction may be reduced by heat-treatment to effect dimerization of the cyclopentadiene.  The polymerization is preferably carried out in the presence of a Friedel-Crafts catalyst.  In the examples a fraction containing isoprene, piperilene, cyclopentadiene and mono-olefins is polymerized with a fraction containing styrene, orthomethylstyrene, paramethylstyrene, metamethyl styrene, a -methylstyrene and the like, using a boron trifluoride catalyst. The polymer is purified, reacted with maleic anhydride to form an adduct which is saponified with alkali in the presence of a small amount of rosin.ALSO:A petroleum resin for use in the manufacture of paper sizing agents is prepared by copolymerizing a petroleum fraction containing diolefins having five carbon atoms and having a boiling point of from 20 DEG  to 100 DEG C with a petroleum fraction containing at least one compound selected from styrene and its alkyl derivatives and having a boiling point of from 140 DEG  to 280 DEG C in such a proportion that the resulting copolymer has a bromine number of more than 25 and a softening number of more than 35 DEG C, the content of cyclopentadiene contained in said fraction having a boiling point of from 20 DEG C to 100 DEG C being controlled below 10% by weight and said fractions being obtained by a thermal cracking of petroleum fractions.  In Example 1 a petroleum resin so obtained is reacted with maleic anhydride to form an adduct which is then saponified with alkali in the presence of a small amount of rosin.  The sizing agent thus obtained is added to a batch of pulp in an amount of 0.3% by weight of resin component based on the weight of pulp, and fixed onto the pulp by adding aluminium sulphate until the pH reaches 4.5.  The batch of pulp is then made into paper using a hand-operated paper machine.
Patent GB-442381-A (GB)
Title: Apparatus for influencing a beam of light by electrical means
IPC: H04N5/74
Filed: 1934-09-26
Abstract: 442,381. Frequency measurements. PULVERMACHER, K. PULVARI-, 2, Pßrisi-utca, Budapest. Sept. 26, 1934, No. 27643. Convention date, Nov. 30, 1933. [Class 37] [See also Group XL] Apparatus adapted for use in the stroboscopic investigation of high frequency phenomena comprises an envelope 5 in which are mounted a cathode 31, a Wehnelt cylinder 2, an anode 3, two pairs of deflecting plates 15 and a pair of screens each consisting of a layer 27, 28 of a group of crystalline or amorphous particles of a medium capable of rotating the plane of polarization of light under the action of an electric field mounted on a carrier 29, 30 serving as a coating. Light from a source 20 passes through crossed Nicol prisms (not shown) arranged one on each side of the screens. The electron beam from the source 31 acts solely on the screen 27 and the frequency to be investigated is applied to a grid (not shown) located between the cathode 31 and anode 3. The stroboscopic frequency is applied to the coatings 29, 30 and acts with a polarity opposite to that of the frequency to be investigated. In practice, the stroboscopic frequency is varied until no light is transmitted so that there is thereby obtained an indication or measure of the frequency of the vibration to be investigated. The Specification as open to inspection under Sect. 91 comprises also an arrangement having three electro-optically active layers with interposed carriers serving as coatings, the two outer active layers each being irradiated by an electron beam. This subject-matter does not appear in the Specification as accepted.