baber/WOPTO huggingface dataset:
Patent GB-505899-A (GB)
Title: Improvements in or relating to coupling means for thermionic valve circuits
IPC: H04N5/14
Filed: 1937-11-13
Abstract: 505,899. Valve amplifying circuits; television receivers. FAUDELL, C. L., and ATKINSON, N. Nov. 13, 1937, No. 31213. [Classes 40 (iii) and 40 (v)] In a television receiver the channel which feeds the received signals to a cathode ray tube includes a network which transmits both the A.C. and D.C. components of the signal, but attenuates the D.C. relative to the A.C. components. Fig. 2 (Prov.) shows a television receiver or monitor in which the diede output is applied to an amplifier 8. The decoupling resistance 23 in the anode circuit forms with the load resistance 13 the coupling for direct current to the grid 20 of the cathode ray tube so that if the reactances of the coupling and decoupling condensers 15, 24 are negligible for A.C. the ratio of DC to AC is equal to(R23+R13/R13)(R17/R17+R16). At high frequencies the response is determined by the time constants of the combinations 13, 24 and 15, 17 and for lower frequencies by the combinations 23, 24 and 15, 16. The time constants of 23, 24 and 15, 16 are preferably different from each other. With a leaky grid detector the D.C. component of the signal may be re-inserted as described in Specification 422,906 by making the time constant of the combination long compared with the interval between synchronizing pulses. Fig. 3 (Prov.) shows an anode bend detector with the synchronizing pulses taken from the condenser 43 the output from which is applied to the cathode of the cathode ray tube. With this arrangement the D.C. component is taken through resistance 45 which .may be connected to the junction of resistances 39, 40 or between the damping resistance 38 and resistance 39. Fig. 1 (Comp.) shows an arrangement in which a cathode follower 67 is interposed in the coupling for A.C. signals. D.C. signals also may be applied to the valve 67 in which case resistance 64 is connected across condenser 66 and the coupling condenser 71 is dispensed with. Specifications 422,824, 448,421, 456,450, and 484,218 also are referred to.
Patent GB-601929-A (GB)
Title: Improvements in or relating to endless tracks for amphibious vehicles
IPC: B60F3/00
Filed: 1945-11-21
Abstract: 601,929. Endless tracks for vehicles. FOOD MACHINERY CORPORATION. Nov. 21, 1945, No. 31310. Convention date, Jan. 8, 1942. [Class 79 (i)] [Also in Group XXXIII] An endless track for an amphibian vehicle has grousers each of which comprises a body of rubber or the like secured to an endless belt by a plurality of attaching means whereby the latter can move articulately relatively to one another when the belt passes round a pulley. The endless track comprises an endless belt 11 of rubber in which are embedded endless cables 13 and transverse member 14 which clamp the cable and through which pass bolts 17, 18 which secure the grousers 30. Each grouser 30 comprises a pair of transverse plates 26, preferably having downwardly flanged edges, to which the shaped rubber grousers 30 are bonded. The arrangement is such that each pair of plates can move articulately relatively to one another when the belt passes round a pulley. The central bolts 18 also serve to secure guide members 16. The moulded grousers are preferably of the shape shown in Fig. 2, each comprising a pair of cups 35 opening downwardly and rearwardly, separated by a relatively sharp edge 34. The outer edges of each grouser may project beyond its rectangular supporting base.
Patent GB-208552-A (GB)
Title: Improvements in and relating to brakes for the steering wheels of vehicles, more particularly motor-cars
IPC: B60T11/04
Filed: 1923-12-13
Abstract: 208,552. Oesterreichische Daimler- Motoren-Akt.-Ges. Dec. 14, 1922.. [Convention date]. Controlling-apparatus, arrangements of transmission gear in conjunction with.-The blocks 4 of a brake for the steering-wheels of vehicles are actuated by the depression of a wedge 7 by a rod 5, guided axially in the steering-pivot 2 and moved longitudinally by a tappet or cam 6, located in a recess in the steering-pivot. The wedge is carried by springs 9 also attached to the blocks 4, and is guided by the casing surrounding the steering-pivot, whilst the member 6 is carried on a shaft 10 located in a sleeve carried by the member 2 and mounted eccentrically with respect to the axis of the rod 5, so that it acts centrally on the rod.
Patent GB-462485-A (GB)
Title: Improvements in or relating to the sealing of electrical conductors through quartz envelopes
IPC: H01J5/24
Filed: 1935-11-13
Abstract: 462,485. Sealing leading-in wires into quartz envelopes. GENERAL ELECTRIC CO., Ltd. (Patent-Trouhand-Ges. f³r Elektrische Gl³hlampen) Nov. 13, 1935, No. 31419. [Class 36] A method of sealing a leading - in conductor 1 into a quartz envelope 6 comprises the following steps : (1) Sealing the leading-in conductor 1 through a glass part, for example a glass capillary tube 2, attached, either before or after the sealing therein of the conductor 1, and preferably by means of intermediate glasses, to a quartz cap 4 provided, at the end remote from the seal through which the lead passes, with a surface adapted to fit closely in or outside or against the corresponding surface on the main quartz portion of the envelope 6 ; (2) attaching to the inner end of the lead 1 an electrode 5 or the like; (3) bringing the corresponding surfaces into juxtaposition so that the envelope is substantially air-tight ; (4) heating the juxtaposed surfaces from the outside, so that they are fused together. In the example the inner end 3 of a hard glass capillary 2 is expanded and sealed at its rim, through intermediate glasses, to the quartz cap 4, the inner portion of which narrows inwardly in the form of a cone. The quartz envelope 6 is expanded into a cone of the same angle, and the two cones are ground together so that they are readily sealed together by a flame applied externally. In a modification the two ground surfaces are in the form of flat flanges in parallel planes. An additional lead, such as a lead to an auxiliary electrode, consisting of a fine refractory wire may be inserted between the ground surfaces, so that it is fused into the quartz when the ground surfaces are fused together.
Patent GB-286790-A (GB)
Title: Improvements in or relating to screw-stoppered vessels formed from sheet metal by spinning
IPC: B21D22/16
Filed: 1926-12-11
Abstract: 286,790. Shakespeare, H. T. Dec. 11, 1926. Screwing.-An internal screw-thread is formed in the neck of a spun metal vessel a by closing the neck on a threaded former g. Specification 1222/99 is referred to.
Patent GB-811530-A (GB)
Title: Improvements in or relating to apparatus for continuous determination of volatility characteristics of flowing liquid
Inventor: JACOBS ROBERT B
IPC: G01N7/14
Filed: 1956-10-16
Abstract: <PICT:0811530/III/1> Apparatus for continuously determining the vapour pressure of a flowing liquid stream 2, comprises a metering device 5 for withdrawing an aliquot portion of the flowing stream at a substantially constant rate and pressure to form a sample stream 6, a constant temperature bath 11, a preheater tube 10 immersed in the bath, a float chamber 12 in the bath having a float 14 operating a valve 13 to maintain a constant liquid level in the chamber 12, a capillary tube 20 connected to the chamber 12 above the liquid level therein and immersed in the bath and a pressure gauge 18 connected to the chamber.  A sample of liquid is withdrawn by a pump 5 through a filter 8 to a capillary tube 10, which restricts the flow of the sample, makes it more uniform, and raises the temperature of the sample to that of the oil bath 11. The inside diameter of the tube 10 is sufficiently small to prevent separation of the liquid and the vapour therein.  The temperature of the bath 11 is maintained constant by a heater 25 controlled by a thermo-switch 26.  The sample liquid flows from the capillary tube 10 into the float chamber 12 in which the level of the liquid is maintained constant, waste liquids being collected in a tank 17.  A pressure gauge 18 attached to the liquid zone of the chamber 12, measures the pressure therein and is connected to a recorder-controller 28 which records the variations of pressure with time and operates a blending valve 29 to maintain a liquid composition in the line 2 which meets the desired vapour pressure requirements.  At the upper end of chamber 12 is a capillary tube 20, also immersed in the bath 11, to restrict the flow of vapours from the chamber 12 along a line 21 to the atmosphere.  The inside diameter and length of the capillary 20 are chosen so that the discharge of vapours is comparable with the amount of vapour displacement in the Reid Test for vapour pressure determination. This apparatus can be used to control the blending of gasoline or similar liquids and for measuring small percentages of alcohol in water or in solutions containing unknown contaminants.  Figs. 2 and 3 (not shown), are records of actual experiments for recording the percentage of alcohol and for the blending of gasoline, while Fig. 4 (also not shown), is a graph for converting the readings of the gauge 18 to Reid vapour pressures.
Patent GB-888077-A (GB)
Title: Clamping device for tubular lances
Inventor: BLACKMORE PETER DONALD
IPC: C21C5/46
Filed: 1959-09-15
Abstract: 888,077. Tube connections. BRITISH OXYGEN CO. Ltd. Sept. 14, 1960 [Sept. 15, 1959], No. 31482/59. Class 99(1). A device for connecting a tubular lance, such as used for the injection of gas into a bath of molten metal, to a lance holder comprises a tubular body 1 having mounted therein an annular washer 7 of resilient material and adapted to form a gas-tight seal around the lance, and lance gripping means 15 movable against biasing means, e.g. a spring-loaded plunger 18, from a lance gripping to a lance releasing position, the gripping means being arranged on movement to the lance releasing position to deform the washer to enable the lance to be readily introduced into or withdrawn from the body. As shown, an apertured plate 15 is pivotally held by a pin 16 in a lug 13 integral with the body and is movable to push a sleeve 8 against the washer to deform the washer radially outwardly. After introduction of the lance into the body the plate is released and moved away from the body by the plunger 18 so that the edges of the aperture 22 bite into the outer surface of the lance.
Patent GB-1074990-A (GB)
Title: Selenium rectifier elements
IPC: H01L21/108
Filed: 1965-07-23
Abstract: 1,074,990. Selenium rectifiers. SIEMENSSCHUCKERTWERKE A.G. July 23, 1965 [Aug. 5, 1964; April 28, 1965], No. 31637/65. Heading H1K. A composite selenium layer located between a carrier electrode and a thallium-doped counterelectrode consists of a main portion and a thallium-doped portion which is on the side adjacent to the counter-electrode, the concentration of thallium by weight in the thalliumdoped portion of the selenium layer being between ten and a hundred times as great as that in the counter-electrode; an annular insulating layer is located between the selenium layer and the counter-electrode which thus make contact only in the central aperture of the annulus.
Patent GB-774315-A (GB)
Title: A pressure responsive control device for hydraulic systems
IPC: F16K31/363
Filed: 1954-11-02
Abstract: 774,315. Fluid-pressure servomotor control systems. HYDRAULIK AKTIESELSKAP. Nov. 2, 1954 [Nov. 28, 1953], No. 31658/54. Class 135. A pressure - responsive control valve is adapted for use in an hydraulic system in which a pair of hydraulic motors 10, 82 are connected together mechanically, the arrangement being such that the motor 82 idles until a predetermined load on the motor 10 is exceeded when the motor 82 is connected in circuit to aid the motor 10. The control valve comprises three coaxial piston members 112, 114, 115 on a stem 113 which is urged upwardly by a spring 119 to a position in which the inlet and outlet conduits 83, 84 respectively of the motor 82 are interconnected through a port 108. The hydraulic fluid supply from a pump 2 and manually operable valve 3 to the motor 10 passes through a conduit 13 which has a branch 80 leading to a cylinder in which the piston 112 is situated. A connection 127 leads from the conduit 80 to a valve 122 upon which the hydraulic pressure acts in opposition to a spring. The valve 122 has an axial bore leading into radial openings whereby the conduit 127 communicates with a conduit 129 leading to a cylinder 109 containing the piston 115. As the load on the motor 10 increases so also does the pressure acting on the upper end of the valve 122 which at a predetermined pressure is depressed to cause a groove 123 to interconnect the conduit 129 and a passage 128 leading to a chamber 103 which is connected by a conduit 85 with the low pressure side of the system. The pressure below the piston 115 is thereby relieved enabling the pressure in the conduit 80 to depress the piston 112 so that the opening 108 is sealed by the piston 114 and the conduit 83 is connected to the hydraulic pressure supply by movement of the piston 112 out of the cylinder 106. The piston 114 is arranged to enter the port 108 before the piston 112 has left the cylinder 106 and, to enable the motor 82 to rotate freely until the piston 112 has left its cylinder, ports 116 controlled by a spring-loaded disc 117 are provided in the piston 114. The speed of operation of the device may be varied by adjustment of a throttling screw 135.
Patent GB-337582-A (GB)
Title: Improvements in lifting mechanism for valves of baths, wash basins or the like
IPC: E03C1/23
Filed: 1929-10-18
Abstract: 337,582. St÷hr, R. Oct. 18, 1928, [Convention date]. Lift valves ; actuating-mechanism. - In order to facilitate insertion and withdrawal, the means for lifting the waste valve 25, Fig. 1, of a bath or wash basin, comprises an arm 4 pivoted ta a rod 5, means being provided for locking the pivoted joint in position for use. The arm 4 has a recess 8, Fig. 2, adapted to be engaged by a member on a rod 9 slidablv mounted in the hollow rod 5 ; the rod 9 has a slot 11 co-operating with a pin 12 and having side extensions, so that the rod may be turned to hold it in its upper disengaged position. The rod 5 is fixed to a sleeve 15 slidably mounted in a member fixed to the grating 21 covering the overflow passage 24, the grating having clamping springs engaging the interior of the passage. The valve has a strainer disc 30 and preferably guide ribs 37.
Patent GB-987713-A (GB)
Title: Improvements in or relating to unsaturated polyesters
IPC: C08G63/676
Filed: 1962-08-17
Abstract: The acidity of unsaturated polyesters having an acid number of 80-200 is reduced by heating them with a substantially equivalent amount of an unsaturated glycidyl ether in the presence of a basic catalyst (e.g. an amine or a metal alcoholate).  The alcohol portion of the glycidyl ether may be allyl or methallyl alcohol (or their methyl substitution products) or crotyl alcohol. The unsaturated polyester is derived by reacting (a) a saturated dihydric alcohol (e.g. ethylene-, diethylene-, 1:2-propylene- or 1:3-butylene glycols) or the corresponding epoxides, (b) an unsaturated dicarboxylic acid or anhydride (e.g. fumaric, maleic, itaconic or citraconic acids) and, possibly, (c) a saturated dicarboxylic acid or anhydride (e.g. adipic, succinic, phthalic, isophthalic, terephthalic or tetrachlorophthalic acids), (d) a polyhydric alcohol (e.g. glycerol, trimethylol propane or pentaerythritol) or (e) a monohydric alcohol (e.g. benzyl alcohol, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether or n-heptyl alcohol).  The polyesters may be dissolved in vinyl or allyl compounds (e.g. styrene, vinyl toluene, divinyl benzene, diallyl phthalate or triallyl cyanurate) and then copolymerized therewith in the presence of organic peroxides (e.g. M.E.K. peroxide) and, possibly, cobalt octoate, to give mouldings or coatings free from surface tackiness.  Specification 831,987 is referred to.
Patent GB-707365-A (GB)
Title: Glass drawing apparatus for heat sealing ampoules
IPC: C03B23/18
Filed: 1952-12-15
Abstract: 707,365. Sealing ampoules. SANDOZ, Ltd. Dec. 15, 1952 [Dec. 18, 1951], No. 31742/52. Class 56 In an apparatus for heat-sealing glass ampoules, the ampoule stem is held in. a scissors-like device and, after heating, is drawn from the ampoule body by the action of a rotating wheel against the periphery of which the stem bears. A pair of wheels a support and rotate the ampoule b about its axis whilst the stem d is held by a scissors-like holder against the grooved periphery of a wheel c mounted at 90 degrees to wheels a. The holder consists, as shown in Fig. 5, of a fixed arm c and an arm f which is moved aside as the ampoule stem is pressed into the holder, returning to its closed position under the action of a weight g. In operation, a flame h is directed on to the rotating stem so that the glass softens, the part i of the stem then being drawn off by the wheel c whilst the remaining part k is sealed.
Patent GB-210907-A (GB)
Title: Improvements in spring locks
IPC: E05B55/02
Filed: 1922-11-21
Abstract: 210,907. Tibbles, H. J., and Eisler, H. Nov. 21, 1922. Night latches and like spring locks; catches, sliding. - A lever-controlled spring-bolt has a projection engaging a stop rotatable in one direction for preventing the bolt from shooting beyond the position in which it acts as an ordinary latch. On slamming, a pivoted pawl on the bolt removes the stop and the bolt shoots out to its locking position in which levers engage its stumps. Fig. 4 shows the bolt in its latching position, a projection B engaging one of the pair of wide arms C on the stop E which is held against rotation in the forward direction by the pawl G. In this position, the stump H does not leave the long slot. J of the lever gatings and avoids locking the bolt. When the door is slammed, the inward movement of the bolt causes the pawl F pivoted on it to rotate the stop E, bringing a narrow arm D into a vertical position so that when the bolt shoots into the staple, the projection B allows it to advance sufficiently to permit the levers to engage the stump H in their side slots K, as in Fig. 8. A key is then necessary to release the bolt, the next inward movement of which causes the pawl F to engage the vertical narrow arm D to rotate the pawl so that a wider arm C is vertical, so setting the stop for the latching position of the bolt. A sliding catch M<1> may be employed for either holding the bolt in shot position, or for preventing its shooting beyond latching position. Specification 138,769 is referred to.
Patent GB-1451553-A (GB)
Title: Presser plate device for a sewing machine
IPC: D05B39/00
Filed: 1974-07-18
Abstract: 1451553 Sewing machines; work holding NECCHI SpA 18 July 1974 [26 July 1973] 31834/74 Heading DIG A presser foot for holding a patch pocket or the like against a garment while it is being sewn to it has laminae 27, 28 which may be extended and retracted under the base plate 9 so that when more than one row of stitching is to be sewn the edges of the laminae may be moved to support the material close to the row being sewn. A pneumatic piston 13 moves a block 15 to which is attached a plate 17. Moving the plate 17 causes levers 21, 22 to move the laminae 27 out or in, while the laminae 28 is connected directly to the plate 17 by a pin 19 which slides in a slot 18 in the plate 17. The presser foot is supported on arms 12, and a plate 29 is employed to turn in the edges of the patch before sewing.
Patent GB-1353814-A (GB)
Title: Process for preparing glycol esters from olefinically unsaturated  compounds
IPC: C07C/
Filed: 1971-07-07
Abstract: 1353814 Alkylene glycol esters HALCON INTERNATIONAL Inc 7 July 1971 [8 July 1970] 31897/71 Heading C2C In the preparation of vicinal alkylene glycol esters by the reaction of an olefinically unsaturated compound and molecular oxygen in a zone comprising a carboxylic acid in the liquid phase and in the presence of a catalyst comprising a cation of a variable valent metal selected from Te, Ce, Sb, Mn, V, Ga, As, Co, Cu, Se, Ag and Cr and a bromine or chlorine containing compound, there is maintained an equilibrium water concentration of at least 0À5% by weight of the liquid phase during the reaction. Alkenes, aryl-alkenes and cycloalkenes which may contain functional substituents are listed with many carboxylic acids. Examples describe the preparation of ethylene glycol diacetate using tellurium dioxide and hydrobromic acid as the catalysts.
Patent GB-1034408-A (GB)
Title: Automatic check valves
IPC: F16K15/08
Filed: 1964-08-06
Abstract: 1,034,408. Valves. HOERBIGER VENTILWERKE A.G. Aug. 6, 1964 [Aug. 6, 1963], No. 31979/64. Heading F2V. A delivery valve suitable for a compressor comprises (Fig. 1) a series of individual valves located between members 1 and 2, each valve comprising a seat member 3 having ports 6 closed on each side by closure members 8 loaded by springs 9 which bear against guards 5 held between adjacent seat members. In Fig. 2, the seat members 3 each define three concentric annular ports 6, the axial distance between opposite seating surfaces of the same port diminishing radially in an inward direction (as shown) in the case of a suction valve or in an outward direction in the case of a discharge valve. Each valve guard comprises an annular disc 13 held between adjacent seat members to serve as a guard for the outermost closure members, two annular discs 15 riveted one on each side of disc 13 to serve as guards for the central closure members, and two annular discs 16 riveted one on each of discs 15 to serve as guards for the innermost closure members. In Fig. 1, members 1 and 2 may serve as valve guards at each end of the series, and in Fig. 2 the members may serve as guards for the outermost closure members at each end of the series and support the guards for the other closure members at the ends of the series. If required, a series may include both suction and delivery valves according to the invention; alternatively a series constituting a discharge valve may be closed at its outer end by a conventional ring suction valve, or vice versa. In the embodiment of Fig. 3, valve lifting means are provided comprising opposed pistons 22, 24 slidable in bores 23 arranged between the ports in the seat members, pressure fluid being supplied to the space between the pistons via passages 26-28 or via conduits (Fig. 4, not shown). As an alternative, when a series according to the invention is provided at its outer end with a conventional ring check valve (Fig. 5, not shown), the latter is provided with conventional lifting means.
Patent GB-377062-A (GB)
Title: Improvements in and relating to guards for razors
IPC: B26B21/40
Filed: 1931-11-18
Abstract: 377,062. Razors. ERN, C. F., 11, Strandbadweg, Wald, Solingen, Germany. Nov. 18, 1931, No. 32038. [Class 30.] An open razor is guarded on one side by a sheet-metal combed plate b and on the other by an independent narrower combed plate a, .and the plates have sleeves d, c, the latter .clipping over the back of the blade, with the former slid telescopically over it. The plates are spaced away from, and parallel to the blade by the inturned edges e of the doubled-over guarding edges f. Both guarding edges and the blade edge are coplanar with the surface shaved.