baber/WOPTO huggingface dataset:
Patent GB-1067570-A (GB)
Title: Detachable connection of a piston with a piston rod, especially for a piston compressor
Inventor: FRIEDENREICH HEINRICH
IPC: F16J1/00
Filed: 1964-08-26
Abstract: 1,067,570. Pistons. BADISCHE ANILIN- & SODA-FABRIK A.G. Aug. 26, 1964 [Aug. 29, 1963], No. 34867/64. Heading F2T. A detachable connection between a piston 7 and a piston-rod 1 comprises two cams 4 on the larger of two coaxial bores 2, 3 in the rod 1, a shank 5 having one end 5a adapted to fit in the smaller bore 3 and two bosses 6, of similar shape to the cams 4, which during assembly are moved axially past the cams and then arranged to lie behind the cams by partial rotation of the shank, the piston being bored to pass over the shank and having an extension (8, Fig. 4), which slidably fits in the bore 2 and has two projections 9 which extend between the cams and between the bosses to prevent relative rotation of the piston and piston-rod. The piston is tightened on the rod by a nut 10 and sealed thereto and to the shank by a seal 13. A spring 12 is disposed between the end 5a of the shank and bottom of the bore 3.
Patent GB-1402447-A (GB)
Title: Paving stones
IPC: E01C5/00
Filed: 1972-07-26
Abstract: 1402447 Interlocking paving stones; kerbs K JAKOBSEN and O M JAKOBSEN 26 July 1972 [28 July 1971] 34946/72 Headings E1B and E1G A set of interlocking paving stones comprises two different forms of stone 2, 4 but having similar top surfaces, the stones 2 having downwardly diverging side surfaces at least some of which each have a vertical tongue-like projection 6, and the stones 4 having downwardly converging side surfaces at least some of which each have a vertical groove 8 for receiving a tongue 6 of an adjacent stone 2. The top surfaces of the stones may be square, rectangular, hexagonal or trapezoidal. The tongues 6 and grooves 8 may taper, as shown. A co-operating kerbstone 10 has tongues and/or grooves for engaging several adjacent stones. When laying, the stones 2 are laid first and the stones 4 are then lowered into the spaces therebetween. Elongate rectangular stones may have several tongues or grooves on each longer side surface. Two grooved stones may be interlocked by a separate wedge-shaped piece. The tongues and grooves need not extend the full depth of the stones.
Patent GB-431645-A (GB)
Title: A process for improving the wetting out properties of materials
IPC: D06M13/156
Filed: 1933-12-12
Abstract: The absorbent properties of materials, particularly textile fibres and articles are improved by impregnating them with a solution of a homologue of phenol containing a single halogen atom in the ring, and removing the solvent.  The impregnation may be effected during the manufacture or laundering of the articles.  In an example, cotton wool is immersed in an aqueous solution of 2-chlor-5-hydroxytoluene, wrung out and dried.  The cotton wool acquires antiseptic, germicidal and deodorant properties.  4 - Chlor - 1 - hydroxy - 3 : 5 - dimethylbenzene is specified and the treatment of wood-flour and leather is mentioned. Specifications 259,690, 337,473, [both in Class 140], 344,339, 374,214, and 378,194 are referred to.
Patent GB-1500672-A (GB)
Title: Railway track tamping machine
IPC: E01B27/17
Filed: 1976-08-23
Abstract: 1500672 Railway track tamping machine FRANZ PLASSER BAHNBAUMASCHINEN - INDUSTRIE GmbH 23 Aug 1976 [25 Aug 1975] 35010/76 Heading E1G A mobile track tamping machine 1 having vertically adjustable vibrating tamping tools 7 is provided with a holding unit over each rail in the vicinity of the tamping tools, for keeping the track under which the ballast is to be tamped in the correct position. The holding unit comprises a beam 13 extending longitudinally of the track which is in contact with the rail in at least three spaced points 14, 15, 16 and is pivotally connected at its two ends to power drives 11 mounted and/or guided on the tool and/or machine frame. In Fig. 1 the beam makes sliding contact with the rails and in Fig. 2 the contact points are provided by flanged wheels 22 which by means of hydraulic cylinder and piston drives 25 acting transversely against the wheel mountings, and track lifters 19 may be used to correct the lateral alignment and/or gauge of the track.
Patent GB-192263-A (GB)
Title: Improvements in and relating to churns
IPC: A01J15/06
Filed: 1921-12-31
Abstract: 192,263. Larsen, L. P., and Paasch & Larsen, Petersen, Aktieselskab. Dec. 31, 1921. Rotary batch-mixers ; mixing by compression.- In a churn comprising a barrel rotating on a substantially horizontal axis and fitted with two or more horizontal rotatable rollers, shelves 3 are provided between the walls of the barrel and the nearest rollers and are mounted on axes 4 which can be rocked to adjust the distance between the edges of the shelves and the walls. The shelves are mounted in trunnions in the ends of the barrel, one of the trunnions, for each shelf, being provided with a hand-lever fitted with a spring stop for adjusting the inclination of the shelves. The shelves are removable by mounting these, trunnions in removable glands, and the shelves may be mounted eccentrically on their axes. In a modification the shelves are dispensed with, the outer working rollers, of irregular cross-section, being similarly adjusted and mounted near the walls.
Patent GB-628757-A (GB)
Title: Improvements in the production of gelatin
IPC: G03C1/047
Filed: 1946-11-27
Abstract: Gelatine is deaminated by suspending it, preferably in flake form, in an aqueous solution of nitrous acid having a pH of 3.8-4.7 at such a temperature that the gelatine does not dissolve or swell to the point of imbibing more than ten times its weight of water until its isoelectric point is reduced to approximately pH 4.  The starting-material is preferably alkali or lime processed gelatine having an isoelectric point 4.7-5.1.  The nitrous acid amounts to not more than 40 per cent of the gelatine. The treated gelatine is decolourized by treatment with a reducing agent, preferably sodium hydrosulphite in 1 per cent aqueous solution, and is resolubilized by simultaneous or subsequent treatment with a dilute, aqueous solution of an alkali, e.g. a 0.1 per cent solution of sodium hydroxide, this treatment also serving to remove any anionic ash constituents.  After washing with distilled water cationic ash constituents are removed by treatment with acidified water, e.g. dilute acetic acid.
Patent GB-429626-A (GB)
Title: An improved means of conveyance of goods through furnaces at elevated temperatures
IPC: F27D3/02
Filed: 1933-12-15
Abstract: 429,626. Hollow rollers. FALLON, J., British Mills, Cornwall Road, Smethwick, near Birmingham. Dec. 15, 1933, Nos. 35289 /33 and 29779/34. [Class 34 (i)] [See also Group XII] In a roller-way conveyer for furnaces, each roller comprises a series of metallic charge-supporting discs e mounted onanairor water-cooled shaft a and alternating with refractory spacing tubes f, the shaft a being fitted at one or both ends with springs or screws n for maintaining the assembled series of discs and spacers under axial compression. The spacers consist of an outer layer f<1> of interlocking segmental block formation and an inner lining of compressed granular or powdered refractory material, these tubular sections being retained in position by flanged tyres e<1> and lips e<5>, e‹, on the discs e. As shown in Fig. 4, the lips e<5>, e<6> are provided on both sides of radial fingers e<4> which are formed by cutting slots e<3> in the reduced web e<2> of the disc.
Patent GB-465786-A (GB)
Title: Improvements in or relating to the manufacture of plastic materials derived from mercaptans and mercaptides
IPC: C08G75/16
Filed: 1935-11-12
Abstract: Plastic material is prepared by treating an organic compound comprising at least two mercaptan and/or mercaptide groups with a solution of an alkaline polysulphide, preferably the tetra- or penta sulphide, and preferably in an alkaline solution.  In examples, the mercaptan is treated with a sufficient amount of an alkali hydroxide to form the mercaptide, a dispersing agent, e.g. gelatinous magnesium hydroxide, is added, and the mixture is then treated with a solution of an alkaline polysulphide.  The product may be purified by washing, and the polymer may be coagulated by acidification.  The plastic may be compounded with carbon black, clay or metallic oxides, may be combined with sulphur by heating, preferably in the presence of a metallic oxide, and undergoes a change similar to the vulcanization of rubber when heated with zinc oxide.  Specified mercaptans used are dimercapto-ethylether, b -mercapto-ethoxy-mercapto-ethyl ether, ethylene dimercaptan. p-phenylene dimercaptan, p-xylylene dimercaptan, and di-, tetra-, and hexa-methylene dimercaptans, mixtures thereof, such as a mixture of ethylene dimercaptan and dimercapto-ethyl ether, and a mixture of dimercapto-ethyl ether and dimercapto-ethylthioether.
Patent GB-1122408-A (GB)
Title: Monoazo dyes containing a heterocyclic residue and materials dyed therewith
IPC: C09B29/033
Filed: 1965-08-17
Abstract: The invention comprises monoazo dyestuffs of the formula <FORM:1122408/C4-C5/1> wherein R is a phenyl or 2-benzthiazolyl group, R1 is a phenylene group R2 is H or C1-C4 alkyl R3 is C1-C4 alkylene, R4 is H or (CH3) and Z is a chain of carbon atoms or a 1,2-phenylene group which together with the group <FORM:1122408/C4-C5/2> forms a 5 or 6 membered ring, the groups R, R1, R2, R3 and Z may be substituted with substituents which do not render the dyestuff water-soluble. They may be obtained by coupling a diazotized amine of formula R-NH2 with a compound of the formula <FORM:1122408/C4-C5/3> (see Division C2 for preparation).  Specified rings which Z may complete are a 2-pyrrolidinone ring to which may be fused a benzene ring or a piperidin-2-one ring.  Examples are given for the production of dyes wherein R is an unsubstituted or substituted phenyl or 2-benzthiazolyl group.  They may be used for dyeing textile materials including polymer fibres such as cellulose esters, polyacrylonitriles, polyesters or polyamides, yellow, orange, red or violet shades.ALSO:A compound of the formula <FORM:1122408/C2/1> is obtained by reacting N-b -aminoethyl-N-ethyl-m-toluidine and butyrolactone to give a compound of the formula <FORM:1122408/C2/2> which is then reacted with acrylonitrile in the presence of hydroquinone and cupric acetate monohydrate.  The product is useful in the production of dyestuffs (see Division C4].  Also, a compound of the formula <FORM:1122408/C2/3> is obtained by reacting N-b -aminoethyl-N-ethyl-m-toluidine with phthalide in the presence of sulphanilic acid.
Patent GB-1521094-A (GB)
Title: Waste heat boiler
IPC: F22B1/18
Filed: 1975-08-27
Abstract: 1521094 Tubular heat exchangers for cooling gases SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 27 Aug 1975 35350/75 Headings F4S and F4A A waste-heat boiler for cooling high temperature gas or generating steam from partial conduction processes comprises a normally upright cylindrical shell 1 closed at each end and having a coaxial tube 2 to which cooling water is supplied at its lower end through a pipe 16 and into an annular cooling space 3 housing helically wound pipes 4, 5 for high temperature gas so as to form steam, the unconverted water overflowing into the open upper ends of recirculation channels 12. The channels are formed by flat walls 13, 14 extending outwardly from the tube 2 and bounded by a wall 15. The helical pipes 4, 5 are formed as concentric sets and are connected at their upper ends to straight pipe sections 6, 7 symmetrically arranged relative to the shell axis and leading to lower gas outlets 17. The pipe sets are supported respectively by members 8, 9 by rods 10 from a yoke 11 to compensate for thermal expansion. Water entrained in the wet steam is separated therefrom in a drum (not shown) and the separated water is passed to the inner tube 2.
Patent GB-1200583-A (GB)
Title: Hydrolysis of ribonucleic acid-containing materials
IPC: A23K1/18
Filed: 1969-01-21
Abstract: 1,200,583. Dog food. RALSTON PURINA CO. 21 Jan., 1969 [22 March, 1968], No. 35494/69. Divided out of 1,200,582. Heading A2B. [Also in Division C3] Ribonucleic acid containing materials, for example yeast or animal tissues, are hydrolysed in an aqueous medium at a pH of at least 12 for a period of at least 3 hours, whereby mixtures of 2<SP>1</SP>-, 3<SP>1</SP>-, and 2<SP>1</SP>, 3<SP>1</SP>- ribonucleotides are obtained. The product may be neutralised, and employed in the flavouring of dog foods.
Patent GB-1120757-A (GB)
Title: Electric water heaters and heating units
IPC: F24H1/22
Filed: 1967-08-09
Abstract: 1,120,757. Electrode liquid heater. H. W. ANGELERY. 9 Aug., 1966 [12 Aug., 1965], No. 35549/66. Heading H5H. [Also in Division G3] A water heater has two electrodes 22, 23, and an insulating member 26 movable therebetween, to control the current flow and thus the heating, by a device responsive to the water temperature. A thermostat bulb 21, responsive to the temperature of the water in the inner tank 12 and the incoming water from the outer tank 10, causes expansion and contraction of a bellows (28), (Fig. 2, not shown), in a control unit 27. The bellows movement is transmitted via a linkage system to a bell-crank lever 42 with an arm 43 carrying the insulating member 26. Further bellows movement cuts off the power supply at a given high temperature. An additional thermal switch 61 cuts off the power supply at a higher maximum temperature as an additional precaution against bellows failure. Additional pairs of heating electrodes 24 in series with main electrodes 22, 23 are provided. The electrodes are substantially parallel grids of wire mesh, but may alternatively be perforated plates or parallel spaced bars. U.S.A. Specification 2,713,994 is referred to.
Patent GB-1275763-A (GB)
Title: Method and apparatus for checking colour-coded information
Inventor: WAHLI ROBERT
IPC: G06K7/12
Filed: 1969-07-15
Abstract: 1275763 Photo-electric colour analysis CIBA-GEIGY-AG 15 July 1969 [16 July 1968] 35597/69 Heading G1A [Also in Division G4] Ampoules 10, Fig. 5 carry identification codes in the form of rings coded by the primary colours red, green and blue and by the complementary colours cyan, magenta and yellow, and a check is made to confirm that each code contains the correct numbers of primary and complementary colours. Signals representing the presence of red, green and blue are obtained from dichroic mirrors 15, 16 and photo-multipliers 17-19. Gates 29 are arranged to give unambiguous colourrepresenting signals, e.g. a "cyan" output does not give rise to "green" and "blue" outputs as well, and further outputs A, S, T are obtained representing a primary, a complementary or either colour. Switches M1-M4 Fig. 6a are preset to positions corresponding to a given colour for each of the code rings and output gates V1 p -V4 p  are selected in turn by stepping of a counter Z in response to pulses T, so that gate V p  provides a train of output pulses P corresponding in number to the number of matched colours. Outputs A, S are similarly obtained from gates VA, VS representing the numbers of primary and complementary colours detected. The pulse trains P, A, S are counted separately and compared with preset numbers, any ampoule found to have an incorrect code being rejected, e. g. at a downstream station controlled by a shift register stepped in synchronism with the passage of ampoules past the scanning station and receiving an input from the count comparison circuits. In another embodiment the detected code is stepped through a shift register first and compared with a preset code when it arrives at a selected stage of the register.
Patent GB-873835-A (GB)
Title: Improvements relating to automatic electrical control circuits
Inventor: SCOLES GRAHAM JOHN
IPC: G05F1/52
Filed: 1956-11-21
Abstract: 873,835. Automatic voltage-control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 6, 1958 [Nov. 21, 1956], No. 35607/56. Class 38 (4). [Also in Group XXXVIII] In an automatic control system a detector is rendered conducting or non-conducting, according to whether a voltage is above or below a desired value, to discharge or charge a condenser in a resistance-capacity integrating circuit the output of which is applied to restore the voltage to the desired value. In Fig. 1 a portion of the output voltage of a grid-controlled rectifier 1 is applied to the grid circuit of a high-gain pentode amplifier valve 2 having a short grid base. The arrangement is such that a small rise of the rectifier output voltage above a desired value renders valve 2 fully conductive so that the voltage across condenser 7 of a resistance-capacity integrating circuit 6, 7 starts to fall. This falling voltage is applied through a cathode follower valve 8 and an adjustable diode limiter circuit 12 to cathode-coupled valves 10, 11 which control the phase of pulses applied to rectifier 1 and thereby restore the output voltage to the desired value. The voltage applied to valve 2 may be derived from the unsmoothed output of rectifier 1 so that ripple is introduced to increase sensitivity. If it is desired that the rectifier output voltage shall build up gradually on starting up a short circuit (not shown) is removed from condenser 7. If it is desired to increase the rectifier output voltage gradually from one value to another a switch (not shown) may be operated to render ineffective an additional diode valve associated with the grid circuit of pentode valve 2. A non-linear resistor may be connected across resistance 6 to speed up response to large signals. Specification 670,961 is referred to.
Patent GB-448513-A (GB)
Title: Improvements connected with folding chairs
IPC: A47C4/20
Filed: 1934-12-11
Abstract: 448,513. Folding seats. IRONSIDES MANUFACTURING CO., Ltd., and SPICER, W. J., 77, Ladywood Road, Birmingham. Dec. 11, 1934, No. 35625. [Class 52 (ii)] In a folding seat having front and rear frames 1, 2 pivotally connected by links, L-shaped angle members 3 are pivoted to the front and rear frames and a rigid seat 4 mounted thereon. The frames 1, 2 are of U-shape. Inverted angle members 5, 6 pivoted to the frames carry armrests, and the back 7 is secured by means of angle brackets 8.
Patent GB-385743-A (GB)
Title: A method of and mechanism for securing the freed threads of a book or the like in a thread stitching machine
IPC: B42B2/02
Filed: 1931-12-24
Abstract: 385,743. Book-stitching 'machines. POLLAK, J. E., 20, Holborn, London.- (Brehmer, Geb. ; Plagwitz, Leipsic, Germany.) Dec. 24, 1931, No. 35708. [Class 112.] Thread ends are pasted to the backs of books by a bookstitching machine. In a machine where section blocks are placed between the books the pasting device comprises rollers 7, Fig. 4, which are swung over from contact f with a paste supply roller 112 to contact with the thread ends which are drawn along the book by suction pipes 24. The rollers are rotated in an anticlockwise direction to smooth down the thread ends on the book and the ends are finally pressed in position by a blade spring 23. In a machine where section blocks are dispensed with the device comprises a wedgeshaped thread pick-up 133 and paste container 65 which are carried by a resilient member 66. The pick-up 133 drops between two books, and is moved transversely to pick up a thread end and lay it along the book back. An aperture in the bottom of the paste container is then uncovered and the thread is covered with adhesive and smoothed down by the member 66. Specifications 362,820, 362,863, 362,864, and 365,270 are referred to.
Patent GB-440877-A (GB)
Title: Improvements in or relating to systems for generating high frequency electrical oscillators
IPC: H03L1/00
Filed: 1934-10-27
Abstract: 440,877. Inductances. POLYDOROFF, W. J., 420, Fullerton Parkway, Chicago, U.S.A., and ALADDIN INDUSTRIES, Ltd., Aladdin Building, Greenford, Middlesex. Oct. 27, 1934, No. 35749/33. [Class 37] [See also Group XL] In a system for the generation of highfrequency oscillations using an oscillator coil 7 having a magnetic core 6, the effect of variations of temperature or supply voltage on the frequency of the generated oscillations is compensated by means of an element in the magnetic circuit of the core, the magnetic reluctance of said element being caused to vary automatically in response to changes of temperature or supply voltage. In one arrangement, the coils are mounted on a core made of finely divided magnetic material, such as that described in Specification 403,368, the permeability of which varies with change of temperature, the magnetic circuit being completed through a yoke member which may also be made of finely divided magnetic material. In another arrangement, Fig. 2, the length of an air gap 9 in the yoke 8 is varied automatically by means of a thermal strip 10 having a high coefficient of expansion. Changes in the supply voltage may be compensated by varying the permeability of the yoke 8, Fig. 3, by means of a coil 12 energized with direct current from the power supply or anode circuit of the valve. The invention is of particular application to the oscillator circuits of superheterodyne receivers.
Patent GB-859702-A (GB)
Title: End bell adapters for hermetic and open-type refrigeration compressors
IPC: F25B31/00
Filed: 1959-10-22
Abstract: 859,702. Compressors. WORTHINGTON CORPORATION. Oct. 22, 1959 [April 23, 1959], No. 35789/59. Class 8(1). [Also in Group XXXV] A detachable end bell S, Fig. 2 serving to close the open end 18 of a motor driven refrigerant compressor 1 and through which a crankshaft 21 projects comprises a bearing B for said crankshaft, an annular cup member 26 for sealing the crankcase 25 and a suction inlet chamber 27 in open communication with the suction manifold 14 of the compressor 1. As shown the crankshaft projects through a sealing member 34 in the bell S and is coupled to the motor 2 but in a modification the bell H, Fig. 7 provides an hermetic housing for the motor 61. Thus a given compressor may be adapted for operation either by an open motor as shown in Fig. 2 or by a hermetically sealed motor as shown in Fig. 7 in which case refrigerant gas is drawn through filters 76 in the suction inlet chamber 72, and through passages 68 cut internally of a cylindrical portion 52 of the bell H and separated by lands 67 for supporting the motor stator 66 and through passages 58 to the suction manifold 14. Refrigerant gas also traverses gaps 70 between the rotor 61 and stator 66. The other end of the crankshaft 21 is carried in a bearing 19 in the end wall 10 of the crankcase 25 and has a conventional lubricant passage 31.
Patent GB-397742-A (GB)
Title: Improvements in and relating to two-stroke-cycle gas engines
IPC: F02B43/00
Filed: 1932-12-19
Abstract: 397,742. Cylinders. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Maschinenfabrik Augsburg-Nurnberg Akt.- Ges. ; Nuremberg, Germany.) Dec. 19, 1932, No. 36014. [Classes 7 (ii) and 7 (vi).] In a two-stroke gas engine, gas is admitted under pressure through valves 13, 14 immediately after exhaust ports 5, 2 are closed by the piston, combustion and scavenging air being previously supplied through ports 4, 3 by a pump having a capacity greater than, and preferably 1À3 times, the stroke volume of the engine, the pump preferably being of the centrifugal type and electrically driven. Supercharging may be effected by extra air ports 44, 45 controlled by rotary valves 46, 47, or by rotary valves in the exhaust passages. The valves 13, 14 are operated from the same cam on a shaft; arranged at the side of the cylinder, and rotated at crank-shaft speed.