baber/WOPTO huggingface dataset:
Patent GB-402524-A (GB)
Title: Improvements in and relating to quick tanning
IPC: C14B1/00
Filed: 1932-07-25
Abstract: <PICT:0402524/IV/1> <PICT:0402524/IV/2> <PICT:0402524/IV/3> Tanning is effected in a rotary drum provided with means for drawing off any gases which are generated.  The drum is mounted on trunnions one of which is hollow and carries an upturned extension 19<2> within the drum for preventing the passage of tanning liquid to the suction apparatus.  The drum is formed of staves 11 secured by hoops in known manner and is provided with pegs 29 mounted on battens 30.  Tanning liquid is stored in tanks 37 from which it is circulated by means of a pump 34 to the drums, into which it is introduced through cocks 39. A filter 35 is interposed in the system.  Used liquor may be returned to the tanks by the pump.
Patent GB-586337-A (GB)
Title: Improvements in and relating to tricked instrument beds for knitting machines
IPC: D04B15/00
Filed: 1944-10-18
Abstract: 586,337. Knitting - machines. BENTLEY ENGINEERING CO., Ltd., and BENTLEY, W. T. Oct. 18, 1944, No. 20124. [Class 74 (ii)] A tricked instrument bed for the needles or other sliding members of a knitting-machine, has two or more complete members in each trick. The two sliding members when projected are splayed apart at their outer ends by a centrally disposed fixed partition. In one form, a dial 1 is cut with tricks 2, each to accommodate two complete needles 3, each needle having an operating butt 9. Each trick at its outer end 4 is slightly increased in width. Beyond this portion, the dial is rebated as at 5, and thin metal blades 6 are inserted in radial grooves. One blade 6a is in line with the centre plane of each trick and one blade 6b is disposed mid-between each pair of successive tricks. Each complete member 3 may be a welting or transfer instrument and consist of two blades 3a, 3b which towards their outer ends separate to form an eye 7, and then converge and have a loop retaining notch 8 in each of their top edges.
Patent GB-184050-A (GB)
Title: Improvements relating to reinforcements for use in floor slabs, roads and the like
IPC: E04C5/06
Filed: 1921-07-27
Abstract: 184,050. Nowlan, H. J. July 27, 1921. Reinforced concrete.-Reinforcements for concrete roads, slabs, or the like comprise top and bottom horizontal reticulated frameworks, each consisting; of longitudinal members B, C and transverse members D, E, the respective frameworks being connected by sinuous longitudinal members F forming shear reinforcements in parallel planes. The parts may be folded by turning the shear reinforcements at rightangles to the plane of Fig. 1. Coils or clips A are employed to connect the longitudinal, transverse, and shear members. Additional and transverse shear members G are placed in position during erection of the reinforcement.
Patent GB-1062122-A (GB)
Title: Water-soluble azo dyestuffs and processes for their manufacture
IPC: C09B62/53
Filed: 1964-05-14
Abstract: The invention provides water-soluble azo dyes of general formulae <FORM:1062122/C4-C5/1> <FORM:1062122/C4-C5/2> in which D is a radical of a diazo component, A is a radical of a coupling component, R is a hydrogen atom or a substituted or unsubstituted alkyl or aralkyl group, R1 is a substituted or unsubstituted alkyl or aralkyl radical, X is the group -SO2-, -CO- or -CONH-, Y is a hydrogen atom or a substituent, Z is a halogen atom or one of the groups -OCOCH3, -\sNN(CH3)3, -O-SO3H and -O-SO3M (M is an alkali metal atom) which may be split off by means of alkalies, n is 0, 1 or 2, m is 1 or 2 and which dyes contain at least one sulphonic or carboxylic acid group, the diazo radical may be substituted by further azo groups or water solubilizing groups and the coupling component by water-solubilizing groups.  The dyes are prepared by coupling diazotized aromatic amines with coupling components, one or both of the reactants having a group of formulae <FORM:1062122/C4-C5/3> in which the symbols are as above, and at least one sulphonic acid or carboxylic acid group.ALSO:Aromatic compounds containing a group of one of the general formulae <FORM:1062122/C2/1> <FORM:1062122/C2/2> in which R is a hydrogen atom or a substituted or unsubstituted alkyl or aralkyl radical, R1 is a substituted or unsubstituted alkyl or aralkyl radical, X is a group -SO2-, -CO-, or -CONH-, Y represents a hydrogen atom or a substituent as defined, Z is a halogen atom or one of the groupings -OCOCH3, <FORM:1062122/C2/3> , -OSO3H, and -OSO3M (in which H is an alkali metal atom) which may be split off by means of alkalies, n is 0, 1 or 2 and m is 1 or 2, are prepared by reacting primary or secondary amine with compounds of general formulae <FORM:1062122/C2/4> <FORM:1062122/C2/5> in which X1 is a carboxylic acid halide, a sulphonic acid halide or an isocyanate group, R1, Y, Z and n are as above.
Patent GB-745089-A (GB)
Title: Improvements in and relating to magnetron amplifiers
IPC: H01J25/52
Filed: 1953-07-21
Abstract: 745,089. Magnetron amplifiers. GENERAL ELECTRIC CO. July 25, 1953 [July 25, 1952], No. 20222/53. Class 39 (1). A magnetron amplifier comprises a pair of axially spaced input anode segments 3, 4 and a plurality of circumferentially spaced output anode segments 5 each of axial length equal to the combined length of the pair of input segments. The magnetron may be operated as a frequency changer. For frequency doubling the input segments extend over an angle twice that of each of the output segments. The magnetron is operated just below the point of oscillation. Specification 745,090 is referred to.
Patent GB-351746-A (GB)
Title: Improvements in or relating to walschaerts' valve gear
IPC: F01L29/04
Filed: 1930-07-03
Abstract: 351,746. Engine valve-gear. STEPHENSON & CO., Ltd., R., and MOLYNEUX, A. H., 3, Burleigh Place, both in Darlington. July 3, 1930, No. 20224. [Class 122 (ii).] Comprises a form of Walschaert's valve gear adapted for a locomotive with inclined inside cylinders. The valve - chest is arranged on the side or obliquely of the cylinder; the reversing link 4 and radius rod 6 work in a vertical plane and the combination lever 7 is arranged to work in a plane containing the axes of the cylinder and valve. The crosshead carries a bracket 12 carrying a link 10 which is pivoted directly to the lever 7. Lateral play is prevented by cheeks 14 on the crosshead engaging a boss 15 on the link 10. The rod 6 is jointed to a spindle 16 supported in bearings 17 on a bracket 18 secured to the locomotive frame. The end of the rod 7 is pivoted to a lateral extension 21 on the spindle 16 which extension engages a guide 26. A point 22 on the rod 7 is connected by links 23 to the valve spindle 25. In a modification, the guide 26 is carried by the bearings 17 and engages a second extension on the spindle 16. The construction is adapted for an arrangement where the valve is set obliquely to the cylinder. One or both bearings of the spindle may be made square, rectangular, &c., and the guide 26 thus dispensed with.
Patent GB-358101-A (GB)
Title: Improvements in the removal of dust from gases by washing
IPC: B01D45/10
Filed: 1930-07-04
Abstract: 358,101. Washing gases. CORNER, G. H. C., Norton Hall, The Green, Norton-on- Tees, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. July 4, 1930, No. 20299. [Class 55 (ii).] In the washing of flue gases for the removal of dust and sulphur dioxide fumes by passage of the gas over films of water flowing down plates or tubes, the velocity of the gas does not exceed twelve feet per second. Preferably the gases are passed through water sprays before reaching the baffles, as described in Specification 321,268, [Class 55 (ii), Gas manufacture &c.], and the plates may have film distributing means as described in Specification 358,102. Specification 337,436, [Class 55 (ii), Gas manufacture &c.], also is referred to.
Patent GB-1011364-A (GB)
Title: Improved tape transport system
IPC: G11B15/58
Filed: 1964-05-15
Abstract: 1,011,364. Driving magnetic tape. AMPEX CORPORATION. May 15, 1964 [Sept. 6, 1963], No. 20299/64. Heading G5R. [Also in Division G3] Magnetic tape 11 is driven by reversible capstan motor 12 between reels 13, 14, coupled to motors 15, 16 which are respectively energized by servo amplifiers 17, 18. These amplifiers receive combined signals from tape-driven tachometers 21A, 22A, and tape position detectors 23A, 23B and 24A, 24B, as well as a capstan-driven tachometer 20A. Vacuum chambers 33, 34 have sensing ports 39, 40 and 41, 42, associated with the differential pressure sensors 23A-24B to detect the position of the tape-loops. The motor 12 receives signals from a data processor, for example, for controlling its speed and direction. If the tape is driven at a high speed from the reel 13, tachometer 21A provides a negative feedback signal to be algebraically summed with the speed reference signal from tachometer 20 and bias signals from generators 25A, 25B. The amplifier 17 responds to any resulting error signal to rotate the reel 13 in a counterclockwise direction at a speed slightly above or below the tape speed at the capstan depending upon the position of the loop relative to port 39. When the loop in the chamber 33 is shortened until it reaches the port 39, generator 25A provides a bias signal which is added to the speed reference for accelerating the motor 15 and lengthening the loop. In the chamber 34, the loop is expanded until it reaches port 42 at which point the loop is held substantially constant. When the motor 12 reverses its direction in response to an external control signal, the reference signal from tachometer 20A is reversed. Error signals for the amplifiers 17, 18 are developed so that the reels 13, 14 are decelerated and accelerated to match speedchanges of the capstan. In another arrangement, two capstans are provided for driving the tape in either direction. A pair of tachometers may be provided, one being coupled to each of the capstans and affording signals of opposite polarities, Fig. 3 (not shown). As a further modification a single tachometer is reversibly driven by either capstan selectively.
Patent GB-747423-A (GB)
Title: Plant for propelling ships by means of a liquid jet
IPC: B63H11/12
Filed: 1953-07-22
Abstract: 747,423. Propelling ships. COMPAGNIE ELECTRO-MECANIQUE. July 22, 1953 [July 3, 1952], No. 20329/53. Drawings to Specification. Class 114. Ship propulsion means comprises a liquid jet impelled by combustion gases and scavenging air supplied from a free piston gas generator. The jet is controlled by a by-pass valve in the gas supply line thereto. A by-pass valve may be fitted between the air reservoir of the gas generator and the gas supply line.
Patent GB-686958-A (GB)
Title: Improvements in or relating to electric crystal rectifiers
Inventor: MATTHEWS KENNETH ALBERT
IPC: H03K17/70
Filed: 1951-08-29
Abstract: 686,958. Rectifiers. STANDARD TELEPHONES & CABLES, Ltd. Aug. 29, 1951, No. 20374/51. Class 37. [Also in Group XL (c)] An asymmetric conductor showing negative resistance at low reverse voltages comprises a semi-conductor body 1 of N- or P-type conductivity having on its surface a layer of opposite conductivity, an electrode 4 making low resistance non-rectifying contact with part of the layer, a thin film of the first type conductivity over another small portion 5 of the layer and a second electrode 3 making rectifying contact with the thin film, the two electrodes 3, 4 being spaced apart by from 0.001 to 0.01 inch. The second electrode may be a cat's whisker; the layer of opposite type (P or N) conductivity on the surface of the body 1 may be formed by first polishing then etching the surface with a mixture of hydrofluoric acid, nitric acid and copper nitrate; the thin film may be applied by an electroforming treatment as described in Specification 681,809, [Group XXXIX]. In that event, if the body 1 is of N-type conductivity, a donor impurity such as arsenic or phosphorus previously contained in the whisker is ejected on to a P-type layer when the whisker is made negative relative to the electrode 4 and conversely, if the body 1 is of P-type, an acceptor impurity such as aluminium from the whisker is deposited on an N-type layer when the whisker is made positive. The electrode 4 may be a coating and may extend over the side walls of the body into contact with a metal base 2. The size and shape of the central hole 5 in the electrode 4 is immaterial so long as the whisker is spaced only about 0.002 inch from the edge. The turn-over voltage of germanium is much reduced, and its negative conductance increased. In a modification the whisker is replaced by a metal film electrode of area between 10<SP>-4</SP> and 1 mm.<SP>2</SP>, formed as described in Specification 686,915. The crystal device may be used in a trigger circuit (Fig. 6), having one or two stable states for amplifying pulses of constant or alternating polarity respectively (for two stable states the capacitor 17 being omitted) as described in Specification 650,007, [Group XL (c)], or if the bias source 15 exceeds the turn-over voltage, a saw-tooth relaxation oscillator is produced.
Patent GB-238554-A (GB)
Title: Improvements relating to the manufacture of yeast
IPC: C12N1/18
Filed: 1925-08-13
Abstract: 238,554. International Yeast Co., Ltd., (Assignees of Corby, R. L., and B³hrig, W. H. F.). Aug. 16, 1924, [Convention date]. Yeast.-In making yeast in a yeast-nutrient solution, preferably of the sugar-salt type, by aeration and regulated additions of the nutrients at one or more stages of the process, a portion only of the yeast-containing liquid produced at any given stage is withdrawn ; the residue is diluted and the process continued. For the nutrient solution, cane or beet molasses or a mixture thereof may be clarified, for example, by heating with ordinary superphosphate of lime with or without the addition of a small amount of ammonia or a compound thereof, the resulting mixture being filtered. At one or more intermediate stages in the process the additions of nutrient may be reduced or stopped entirely and the degree of aeration may also be lowered. At the beginning of the process or of a stage thereof the temperature of the solution may be higher than that normally employed, for example, about 33‹ C., and during the first few hours the temperature is allowed to fall gradually to the normal or 30‹ C. The starting condition may be obtained bv suspending seed yeast in a non-toxic aqueous liquid or a dilute nutrient solution, and the seed yeast for this purpose may be obtained by the use of a portion of the yeast-containing liquid withdrawn at a previous stage.
Patent GB-269042-A (GB)
Title: Improvements relating to gyro-compasses
IPC: G01C19/38
Filed: 1926-08-18
Abstract: 269,042. Sperry Gyroscope Co. July 16, 1926, [Convention date]. Gyroscopic compasses.-The damping system of a gyro-compass is arranged to be inherently corrected against the effects of horizontal acceleration, the damping - means being controlled by two opposing forces producing a resultant effect due to tilting of the gyroscope axis, but balancing each other under horizontal acceleration forces. The damping-means in the form shown consists of two liquid-containing bottles D, D<1>, secured on opposite sides of the gyro-casing 1 and connected at their lower ends bv a constricted tube 4. The upper ends of the bottles are cross-connected by tubes 2 to a divided air chest A mounted over a wide nozzle 5 which is fixed to the vertical ring V of the gyroscope mounting and is supplied with air from within the casing through the hollow trunnion 3. The nozzle &c. is so designed that during the small-amplitude oscillations of precession a displacement of liquid is produced to provide damping, but during the larger amplitude oscillations resulting from horizontal acceleration, displacement of the liquid is prevented and damping does not therefore take place. A second pair of bottles connected by a less constricted tube is provided to produce the gravity control for orienting the compass.
Patent GB-647145-A (GB)
Title: Improvements in or relating to electric detonators and the production thereof
IPC: F42B3/103
Filed: 1947-07-29
Abstract: 647,145. Electric blasting detonators. ATLAS POWDER CO. July 29, 1947, No. 20408. Convention date, May 29, 1946. [Class 9 (i)] An electric detonator shell is sealed with a resilient plug by precompressing the plug from a diameter greater than the interior diameter of the shell to a diameter: smaller than that of the shell, inserting the plug while compressed into the shell where the plug expands and is held in place by the remaining lateral compression. A detonator shell 25 contains a charge 28 of high explosive, e.g. tetryl, and a primer charge 29 of lead azide or nitromannite together with an electric ignition assembly 30 of conventional type. In Fig. 4, a match-head 31 is connected to leg-wires 36 extending through a dielectric plug 39 of resilient material such as rubber or a synthetic rubber, e.g. neoprene, butyl and polyvinyl chloride or polyvinyl chloride-acetate. The plug before insertion in the shell has a diameter substantially greater than the internal diameter of the shell (from 5 to 40 per cent greater). For a shell of internal diameter 0.260 in. it is stated that the plug may advantageously be 0.310 in. in diameter: The plug may be moulded on to the leg wires or formed by extrusion with through passages to pass the leg wires freely. To assemble the detonator the shell is inserted in a holder 54, Fig. 9, mounted in a base 55 resting on a bed-plate (not shown). A female die holder 59 is placed on the holder 54 to abut against a shoulder 58. Into the die holder is placed a female die 60 resting on the holder 54, Fig. 14. The internal diameter of the die, which is greater than the diameter of the plug at the outer end, is tapered at the inner end so that at the exit it is less than that of the plug. The plug is threaded on to the leg wires and inserted in the die. A hollow plunger 61 longitudinally split or grooved to receive the leg wires is placed in the die and pressure is then applied to force the plug 39 into the shell where it is held-under pressure in sealing engagement with the shell and the leg wires (Fig. 15). Modified shapes of plug are described and the shell if metallic may be crimped to the plug or bent over the plug. The shell may be formed of thermo-setting plastic materials. Fluid means may be used to introduce the ignition assembly into the shell.
Patent GB-1272602-A (GB)
Title: Improved package and method of making same
IPC: B65D75/32
Filed: 1969-04-22
Abstract: 1,272,602. Coated sheet material. OSCAR MAYER & CO. Inc. 22 April, 1969 [21 Aug., 1968], No. 20439/69. Heading B2E. [Also in Divisions B5 and B8] A packaging material comprises a substrateeither a foamed polystyrene substrate having its opposite surfaces coated with polyvinylidene chloride or a polyvinylidene chloride substrate-coated with a copolymer of ethylene and either vinyl acetate or isobutyl acrylate or ethyl acrylate. The copolymer coating may cover only part of the substrate. Ethylene may comprise 60-90% by weight of the copolymer.
Patent GB-516315-A (GB)
Title: Improvements in or relating to the manufacture of antiserums
IPC: C07K16/12
Filed: 1938-07-11
Abstract: 516,315. Serums. JACKSON, L. MELLERSH-, (Parke, Davis, & Co.). July 11, 1938, No. 20468. [Class 81 (i)] Antiserums are treated to remove constituents which cause anaphylactic shock by digesting the serum with an essentially amylolytic enzyme of the type obtainable from aspergillus oryzae. The digestion is carried out below 50‹C. at a pH of about 4. The application of the method to the treatment of diphtheria antitoxin. is described in examples. Specifications 239,302 and 304,155, [both in Class 81 (i)], are referred to.
Patent GB-858337-A (GB)
Title: Improvements in or relating to comparison gauges
IPC: G01B5/14
Filed: 1957-06-28
Abstract: 858,337. Position gauges. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 28, 1957 [July 2, 1956], No. 20501/57. Class 106 (2). A gauge for indicating discrepancies in the relative positions of holes in a workpiece is preset to correspond with their correct positions and comprises a fixed element 11 fitting one of the holes and as many other movable elements 5, 6 as there are other holes, at least one indicator 12, associated with one of the movable elements so that when a workpiece to be tested is placed on the gauge with the fixed element in one hole and the movable elements in the other holes, any displacement of at least one of the elements is indicated. One gauge, Fig. 2, for testing a plate with three holes, has cylindrical elements, bevelled at the top, one 11 is fixed, another 6 is constrained to move rectilinearly its position being sensed by a pointed feeler 13 of a dial gauge 12 and the last 5 is free and is sensed by a flat head 14 of the feeler of another dial gauge 12a. Another gauge, Fig. 5, for testing a plate with four holes the elements are in the form of balls 40, 41, 42, 43, one 40 is fixed, another 43 is constrained to move rectilinearly and two 41, 42 have their movements determined within narrow limits by holes in the parts 31, 32. Only the displacement of ball 43 is measured by a dial gauge 36. If the holes corresponding to balls 41, 42 are too far displaced from standard, the gauge cannot be used and the workpiece is rejected.
Patent GB-247474-A (GB)
Title: Improvements in railway transition devices for car couplings
IPC: B61G5/04
Filed: 1925-08-17
Abstract: 247,474. Jensen, C. A., (Buckeye Steel Castings Co.). Aug. 17, 1925. Couplings, automatic, convertible to non-automatic.-An automatic coupling 1 of the pivoted-knuckle type is formed with a vertical recess, open at the front and at the bottom, in the guard arm of the coupler. A shackle 9 of a screw coupling is retained in the recess by means of a pin 10.
Patent GB-240617-A (GB)
Title: Improvements in hanging warp blocks
IPC: A01K73/06
Filed: 1924-09-02
Abstract: 240,617. Stephenson, J. E. Sept. 2, 1924. Pulley-blocks.-A suspended gallows block for trawling is connected with the gallows by a dumbbell shaped member G with two spherical or like ends seated in two-part conical bushes in the head of the pulley frame and in a plate F bolted to a casting secured to the gallows. The frame of the pulley comprises two side members A, A' thickened at the top at a, a<1> and bolted together over the lower end of the member G which is small enough to pass downwards through the plate F before the bushes are inserted. The spindle of the pulley or trunnions formed on the pulley pass through large holes or through slots in the frame members A, A<1> and are journaled in eccentrically bored caps D, D<1>, or, as shown, in eccentrically bored bushes d<1>, d<2> in the caps. The bushes or the caps are replaced when worn. Plates K, K<1>, secured to the frame A, A<1>, prevent the warp binding between the sheave and the frame.
Patent GB-938355-A (GB)
Title: Copolymers
Inventor: ELLINGER LEO PHILIPP
IPC: C08F218/08
Filed: 1960-06-13
Abstract: Copolymers containing both vinyl acetate and vinyl pyrrolidone are prepared by subjecting the mixed monomers, either alone or in solution, or in aqueous dispersion to the action of gamma rays or high voltage X-rays.  The copolymerization may be effected in an inert atmosphere at a temperature within the range of from 10 DEG C. to the boiling point of the reaction mixture at atmospheric pressure. The monomer mixture may include a maleic ester while ammonia or an amine may be added before polymerization.  For aqueous dispersion polymerization the total dosage may be between 5 X 104 and 1 X 107 rads. but is preferably between 1 X 105 and 1 X 106 rads.  The subject-matter of Specification 774,897-pressure above 1,000 lb. per sq. inch-is disclaimed.