baber/WOPTO huggingface dataset:
Patent GB-816670-A (GB)
Title: Slack wax oxidation process
Inventor: HALL RODNEY THOMAS WILLIAM
Filed: 1957-03-14
Abstract: Slack wax acids are prepared by passing a stream of air through a heated, molten slack wax containing a minor proportion of carboxylic acids and 0.5 to 2.5 wt. per cent of a water-soluble permanganate salt until the product has an acid number above 40 and below 100, preferably 65-100, more preferably 75-95.  The carboxylic acids may be C12-42 saturated aliphatic carboxylic acids, e.g. stearic, or mixtures thereof such as the slack wax acids or the lighter acids thereof, produced by the present process.  Suitable permanganate salts include sodium, potassium and calcium permanganate.  The preferred slack waxes have a distillation range corresponding to C20 to C70, contain 0.3 to 2 wt. per cent sulphur, may be contaminated with 5-30 wt. per cent of the oil from which the wax was obtained and have a melting point within the range 100-195 DEG  F.  They may be obtained by propane-dewaxing a phenol-treated blend of distillate lubricating oil and propane-deasphalted residue.  Reaction conditions specified include reaction temperatures above the melting point of the wax and below 135 DEG  C., reaction times of 1-4 days, air supply temperatures of 10-60 DEG  C., air supply rates of 90-200 ml./sec./kg. wax and the inclusion of 1-40 wt. per cent of carboxylic acids based on the wax.  Atmospheric pressure is preferably used. Besides carboxylic acids the products may also contain unchanged wax, alcohols, ketones, wax esters and lactones. The slack wax acids may be from C5 to C100 and may be fractionated by extracting the lower acids by heating the molten acids, e.g. at 120-160 DEG  F., with an oxygen-containing solvent, the quantities being such that under equilibrium conditions at least 40 per cent of the wax acids remain insoluble in the solvent.  Numerous specified solvents include alcohols, glycols, glycol ethers, ketones, esters, furan derivatives and acetic acid. The residue may contain more than 80 per cent by weight of acids above C30 and preferably above C36 or C41.  The slack wax acids and their fractions may be used in the manufacture of greases, detergents, anticorrosion additives and soaps and in the bitumen emulsions described in Specification 816,669, [Group III].
Patent GB-693028-A (GB)
Title: Improvements in and relating to pinch valves
IPC: F16K7/06
Filed: 1951-04-13
Abstract: 693,028. Valves. MORRISON, R. F. G., MORRISON. Ltd.. and DOWNTON FOUNDRY & ENGINEERING CO., Ltd., J. March 26, 1952 [April 13, 1951], No. 8629/51. Class 135 The flexible tube of a pinch valve is deformable by the simultaneous movement of upper and lower pinch bars or anvils in opposite directions by inner and outer concentric means arranged on one side only of the tube. As shown, a rubber tube 4, Fig. 2, housed in a casing 1 having flanges 3 for connection in a pipe line and an enlarged rectangular section 5, is disposed between anvils 8, 6. The anvil 6 is connected by bolts 7, Fig. 1. to a yoke 12 having a threaded boss co-operating with external threads on the tubular portion of an operating member 10, whilst the anvil 8 is formed with a threaded stem 9 co-operating with internal threads on the tubular portion. The threads on the yoke 12 and stem 9 are of opposite hand so that on rotation of the member 10 the anvils move either apart or together. The threaded stem 9 may extend completely through the member 10 to give a visual indication of the state of the valve. In a modification, the yoke 12, Fig. 4, secured to the anvil 6 by the bolts 7, is formed with a tubular stem 10<SP>1</SP> which carries a cylinder 14 wherein is slidably mounted a piston 9a secured to the anvil 8. On the admittance of compressed air &c. to the cylinder 14 the anvils may be urged together to close the valve.
Patent GB-498868-A (GB)
Title: An improved thermostatic regulating device for controlling electrically heated apparatus, for example, hot water boilers
IPC: H05B1/02
Filed: 1938-03-21
Abstract: 498,868. Automatic control systems ; electric water heaters. LANDIS & GYR AKT.-GES. March 21, 1938, No. 8640. Convention date, July 9, 1937. [Class 38 (iv)] [Also in Group XI] Temperature.-Electrically heated apparatus such as a boiler 1 is controlled by a thermostatic device comprising a chamber 12, 13, 14, 16 containing an expansible fluid, the moving part 14, 16 of the chamber having two rods 11, 26 rigidly secured thereto, the former operating through an arm 10 to control an inlet valve 7 and the latter carrying means 27, 28 co-operating with a switch in the heating circuit, a screw 34 being provided to permit adjustment of the part 14, 16 and the valve 7. Rise of temperature of the water in the hot water container 3 causes downward movement of the moving part 14, 16 of the chamber and opening of inlet valve 7 to allow cold water from chamber 2 to enter the chamber 3. When chamber 3 is full further rise of temperature produces sufficient downward movement of part 14, 16 and means 27, 28 to cause the latter to tilt a pivoted channel-shaped part 36 carrying a mercury or other switch 38 arranged in circuit with the heaters 24 to stop the heating. If the thermostatic device fails to act a bimetallic strip 39 removes a stop pin 45 to permit a pivoted spring-pressed member 37 to tilt the part 36 and open the switch 38. A screw 34 controls the pressure exerted on the movable part 14, 16 by a spring 32 and can be used to vary the setting of the thermostat. It can be locked by a screw 35. After detachment of the arm 10 and the flange 23 the thermostatic apparatus can be withdrawn downwards from the boiler.
Patent GB-789424-A (GB)
Title: Improvements in or relating to process for producing glutamine
IPC: C07C233/46
Filed: 1956-03-20
Abstract: Glutamine is obtained by heating a solution of the corresponding optical form of g -glutamyl hydrazide in a solvent containing at least 65 per cent by volume of water in the presence of Raney nickel at a pH greater than 9.  The process may be carried out between 50 DEG  C. and reflux temperature for 1-3 hours, especially at 65-75 DEG C.  Preferably 1-4 parts of catalyst are used per part of glutamyl hydrazide.  After the reaction the catalyst is filtered off, any nickel in solution is precipitated with dimethylglyoxime or hydrogen sulphide and the glutamine crystallized out.  Examples are given of the production of L-glutamine using as solvents water, aqueous ammonia, methanol, ethanol, isopropanol and dioxane.  Other specified solvents are water and butanols, pentanol, tetrahydrofurfuryl alcohol and dimethylformamide.  The starting material is made by esterifying glutamic acid at low temperatures (with a sulphuric acid catalyst) by means of an alcohol or phenol to give e.g. the methyl, ethyl, propyl or butyl ester and treating this with hydrazine in aqueous or aqueous-alcoholic solution.  Examples are given of these steps.
Patent GB-1415612-A (GB)
Title: Elliptical-to-rectangular waveguide transition
IPC: H01P5/08
Filed: 1974-02-26
Abstract: 1415612 Waveguide joints ANDREW CORP 26 Feb 1974 [27 Feb 1973] 8684/74 Heading H1W A rectangular-to-elliptical waveguide transition includes, as principal feature of the crosssection, the use of top and bottom (broad) walls which at all points form arcs of an ellipse, and, as principal feature of the longitudinal E-plane section, a boundary contour having zero first-derivative at each end and a second derivative which changes sign between the ends. The term "elliptical" is intended to cover circular and approximately elliptical (oval) sections. An intermediate cross-section of the transition is shown in Fig. 6 where the broken line indicates an ellipse of semi-axes C, D, (both functions of the length L of the transition) upon which the cross-section is based. Upper and lower wall boundaries 30, 32 follow the contour of the ellipse whilst side wall boundaries 38, 40 are parallel straight lines separated by a distance 2X. The transition connects a rectangle of semi-axes A/2, B/2 with an ellipse of semiaxes a, b. At the rectangular end of the transi tion X = A/2, C = #, D = B/2 and at the elliptical end C = X = a, D = b, all these variations being monotonic. The variation of D with L complying with the requirement stated above, is shown in Fig. 7. The variation of X with L (Fig. 8) shows a zero first derivative at the rectangular end and a discontinuity at the elliptical end. Since this discontinuity relates to the side walls 38, 40 which have zero dimensions at the elliptical end, it has no physical existence and the transition continues smoothly into the elliptical section. The variation in the dimension of the side walls 38, 40 need not be monotonic ; e.g. in a transition where both the semiaxes of the ellipse are greater than those of the rectangle, the height of the side walls may rise to a maximum at some intermediate point of the transition (Figs. 2, 9, 10, 11, not shown). Some mathematical formulµ for the determination of the longitudinal variations are given.
Patent GB-1282181-A (GB)
Title: An oxide piezoelectric material
Inventor: ICHINOSE NOBORU
IPC: C04B35/51
Filed: 1970-02-24
Abstract: 1282181 Piezo-electric ceramics TOKYO SHIBAURA ELECTRIC CO Ltd 24 Feb 1970 [24 Feb 1969 22 July 1969 11 Aug 1969 14 Oct 1969 26 Nov 1969] 8752/70 Heading C1J A piezo-electric ceramic consists of a solid solution having the composition wherein x is 1 to 50 mol per cent, y is 34 to 55À5 mol per cent, and z is 16 to 53À5 mol per cent. The ceramic can be modified by the inclusion of 0À01 to 2 wt. per cent of MnO 2 , 0À05 to 2 wt. per cent of Cr 2 O 3 , 0À1 to 2À5 wt. per cent Ni and/or CoO, 0À1 to 3 wt. per cent Ca 2 O 3  and/or Bi 2 O 3 , or 0À1 to 3 wt. per cent of ThO 2  and/or CeO 2 .
Patent GB-150644-A (GB)
Title: Improvements in fittings for braces for personal wear
IPC: A41F3/02
Filed: 1920-03-25
Abstract: 150,644. Walker, Ltd., T., and Wood, H. H. March 25, 1920. Braces.-The Mikado type of attachment plate 1 for the pulley is made with projections 6 serving as trunnions for the pulley and with a corrugation 5 which strengthens the plate sides against springing apart.
Patent GB-1535318-A (GB)
Title: Rotary fluid couplings
IPC: F16L27/08
Filed: 1975-03-03
Abstract: 1535318 Rotary couplings TWIFLEX COUPLINGS Ltd J STEWART and R C STEVENS 26 Feb 1976 [3 March 1975] 8808/75 Heading F2G A coupling for transfer of fluid under pressure from an inlet passage 39 in an outer stationary annulus 18 and a passage 38 in an inner annular rotating hub 12, comprises an annular abutment 14 on the hub facing an end flange 16 thereon to define surfaces with which sealing rings 34, 35 engage and between which is located the annulus 18, the annulus being formed from two relatively axially movable parts, a body member 43 and a thrust ring 47, seals 53, 55 disposed in grooves 52, 54 sealing off the space defined between the surface 50 on the ring 47 and a step 45 on the member 43, this space being connected by a branch passage 51 to the inlet passage 39, so that when fluid under pressure is supplied to the inlet passage 39, the member 43 and ring 47 are forced axially apart causing the sealing rings 34, 35 to seal against the abutment 15 and flange 16 and thereby prevent leakage of fluid. Springs (not shown) surrounding bolts carried by the member 43 retract the member 43 and thrust ring 47 slightly when no fluid is supplied to lessen wear on the sealing rings. The hub 12 rotates on a bearing 21.
Patent GB-476986-A (GB)
Title: Process and apparatus for making edible ice or ice cream
IPC: A23G9/16
Filed: 1937-03-25
Abstract: 476,986. Ice - cream &c. freezers. KONIG, J. W. F. M., and SCHIEDAMSCHE WERKTUIGENEN MASCHINEFABRIEK ZUIVELWERKTUIGEN EN KOELTECHNIEK N.V. March 25, 1937, No. 8865. Convention date, Feb. 27. [Class 29] A process of making ice-cream &c. consists in pre-cooling the cream to a temperature of from - 3 to - 5‹ C. in a container from which it is transferred to, and conveyed through a freezing vessel cooled to from - 8 to - 25‹ C. The cream is, e.g., fed into a pre -cooling cylinder 1 containing a rotary agitating and feeding device and thence transferred through a port 7, provided, if desired, with a regulator 8, into a freezing cylinder 4 through which it is conveyed by a worm to an outlet 10. The cylinders are each provided with jackets through which cooling fluid is circulated. The freezing cylinder may be mounted within the pre-cooling- cylinder.
Patent GB-563706-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/15
Filed: 1944-05-10
Abstract: 563,706. Filters. CROMPTON, T. A. May 10, 1944, No. 8886. [Class 46] A filter element of the squirrelcage type, adapted to be supported at one end-and to carry a filter bag 32 which can be withdrawn over 'the other end, comprises a plurality of spaced peripheral rods 74 having reduced ends fitted into holes in a base member 52 and a top member 76 secured by a central rod or stay bolt 78. The latter is screwed into a central boss 70 connected by radial arms 72 to the base member 52 and is provided with a nut 80 accommodated in a recess in the top member 76. As shown, the top member consists of a substantially hemispherical cap. In a modification, the top member is a cup-shaped structure having curved arms, each of which is detachably connected to, and forms an extension of, a peripheral rod. The filter elements may be mounted in a filter as described in Specification 562,273.
Patent GB-1386822-A (GB)
Title: Crystalline bar for an oscillator and oscillator equipped with such a bar
IPC: H03H9/05
Filed: 1972-02-25
Abstract: 1386822 Piezoelectric flexural resonators COMPAGNIE D'ELECTRONIQUE ET DE PIEZO-ELECTRICITE 25 Feb 1972 [26 Feb 1971] 8916/72 Heading H1E The end faces 6, 7 of a quartz flexural bar resonator are cut such that an angle y, not greater than 45 degrees, is formed between the edges of the pair of lateral faces which are perpendicular to the plane of vibration, and a line (coincidental with the Z<1> crystal axis) perpendicular to the other pair of faces. In addition, the edges of the lateral faces parallel to the plane of vibration may form an angle # with the normal to the other lateral faces. Mounting wires 4, 5 are attached to nodal points on the crystal bar.
Patent GB-351513-A (GB)
Title: Improvements in four stroke internal combustion engines operating by compression ignition
IPC: F02B3/06
Filed: 1930-03-20
Abstract: 351,513. Cylinders. MULLER, G. W., 7, Avenue AndrÚ, Soisy-sous-Montmorency, Seine-et-Oise, France. March 20, 1930, No. 8932. Convention date, March 25, 1929. [Class 7 (ii).] A four-stroke engine having (a) an isolated combustion chamber 4, connected to the cylinder by one or more narrow openings 5 and containing the exhaust valve 9, and (b) an inlet valve 3 for combustible mixture in a part of the cylinder head closely approached by the piston, works by compression ignition, an adjustable plunger 10 being provided to increase the compression ratio at starting. A recess 8 in the piston allows early opening of the valve 3. A sparking-plug facilitates ignition when the engine is cold.
Patent GB-857267-A (GB)
Title: Improvements in or relating to venetian blinds
IPC: E06B9/384
Filed: 1958-03-20
Abstract: 857,267. Window blinds. KRULL, A. March 20, 1958 [March 26, 1957], No. 8956/58. Class 20(3) The ladder tape of a venetian blind comprises vertical cords 2a, 2b between which are connected lath supporting cords 2c, 2d which engage over projections 1a integral with or secured on the lath 1. One of the cords 2c, 2d passes over the lath, the other under, and the ends of the cords may be spaced along the vertical cords 2a, 2b the lower cord passing over the lath. Alternatively four cords may be provided, each pair embracing the lath. The lath is notched at 1b to locate the cords 2a, 2b.
Patent GB-664934-A (GB)
Title: A method of reconditioning felt printing blankets and apparatus therefor
IPC: B41N10/00
Filed: 1949-04-04
Abstract: <PICT:0664934/IV (c)/1> <PICT:0664934/IV (c)/2> Felt printing blankets are reconditioned by placing them in an enclosure, supplying steam to the enclosure so as to moisten the felts, shutting off the steam supply, and causing air to flow through the enclosure to expel the remaining steam from the enclosure and to dry the felts.  The apparatus used comprises an enclosure for receiving the felts, means for supplying steam to the enclosure, inlet and outlet passages for providing an air flow through the enclosure, and valves for independently controlling the steam-flow and the inlet and outlet passages for the air.  The valves may be connected to an electromotor controlled by a time-adjustable clock in such manner that the opening and closing of the valves is effected automatically.  As shown in Fig. 1 an enclosure 1 is provided with ledges 2 to hold the pieces of felt to be steamed and dried.  If desired, the felts may be fixed in supports 21 (Fig. 3) which can be hung on the ledges 2, or they may be placed on a shelf or hung on a bar which can be supported by the ledges.  A pipe 3 with valve 5 connects enclosure 1 with the steam chest of boiler 4.  A pipe 6 with valve 7 and a pipe 8 with valve 9 communicate with the atmosphere.  As the steam-saturated air of the enclosure and the walls thereof are hotter than the surrounding air, a strong convective air current is set up when valves 7, 9 are opened and the steam supply is cut off.  The steam may thus be expelled from the enclosure and the felt may be dried.  The valves may be hand-operated or may be operated automatically by a motor which may be started by a clock-mechanism 11, arranged to actuate the arm of a starting resistance 12.  The clock may be set to determine the period during which steam is allowed to flow into enclosure 1.  The boiler 4 may be heated by an electric heater 13, the current of which is controlled by a thermostat actuated by the boiler water and operating a regulating resistance 14.  The water level in the boiler may be kept constant by a float valve 15 which conducts water from tank 16 to the boiler.  Pipe 17 leads to a safety valve.  A second closed chamber is provided beneath the steam chest and is connected thereto by pipe 19 and valve 20.  This chamber may be used for steam-moistening the cardboard dies to be used in the printing operation.
Patent GB-823448-A (GB)
Title: Improvements in or relating to firearms
Inventor: VESELY JOSEF
IPC: F41C23/00
Filed: 1957-03-21
Abstract: 823,448. Firearms. BIRMINGHAM SMALL ARMS CO. Ltd. March 12, 1958 [March 21, 1957], No. 9238/57. Drawings to Specification. Class 119 In ,a firearm, the wooden stock is strengthened by a pin or peg extending transversely through the stock between recesses therein for the magazine and trigger mechanism. The pin is preferably of wood or similar material and is tapered.
Patent GB-165542-A (GB)
Title: Means for regulating the speed of windmotors
IPC: F03D7/02
Filed: 1920-03-31
Abstract: 165,542. Burne, E. L. March 31,1920. Screw motors.-The varies of a windmill are each divided into two sections by a radial cut and hinged to a radial arm or equivalently mounted so as to swing back into the wing against a controlling force, the leading section to assume a position which would oppose the rotation. The leading section A is plane, but the following section B may be helicoidal, the inclination to the plane of rotation increasing towards the centre and being equal at the inner end to that of the section A. The sections tend to swing into the wind against the action of a pressure transmitted by a rod i passing axially through the main shaft to an arm h to which the sections are connected by links e, f. A spring i allows each vane to adjust itself to a limited extent independently of the others. The windmill may be stopped by releasing the controlling force. A centrifugal governor or a spring drive, for example in the case of a dynamo being driven by the motor, may be the controlling force.
Patent GB-879071-A (GB)
Title: Process for the production of coloured structures from viscose
IPC: D01F2/16
Filed: 1958-03-24
Abstract: A dyestuff or dyestuff-component containing at least one reactive substituent capable of entering into chemical combination with free hydroxy groups present in cellulose xanthate is added to a solution of viscose in an alkaline medium if desired in the presence of a reducing agent and the viscose solution is then spun into shaped structures which are treated if they contain a dyestuff component with a compound which reacts with a dyestuff component to produce a dyestuff. Dyestuff-component is defined as an azo-dye coupling component, e.g. derivatives of a - or b -naphthol, 2-amino-5-oxynaphthalene-7-sulphonic acid, 2-amino-8-oxynaphthalene-6-sulphonic acid or arylides of 2 : 3-oxynaphthoic acid, acetoacetic acid anilides, phenylmethyl-pyrazolones and aromatic amines containing reactive substituents and groups imparting water solubility such as 1 : 3 and 1 : 4 diaminobenzene sulphonic acid and 4 : 41 diaminodiphenyl sulphonic acid.  Preferred dyestuffs are azo, anthraquinone, stilbene, azine, dioxazine, perinone diphenylamine and phthalocyanine dyestuffs.  The dyestuff may be added to the cellulose xanthate solution in the form of an aqueous solution which is stirred directly thereinto.  When a coupling component is used as dyestuff-component the shaped structures are after treated with a diazotized amine solution.  Examples are given.ALSO:In Example 13, the dyestuff of formula:-  <FORM:0879071/IV(c)/1> is made by reacting the condensation product of perylene tetracarboxylic anhydride and 1 : 4-diaminobenzene- 2-sulphonic acid with 2 : 4-dichloro-6-phenyl-amino-triazine- 31-sulphonic acid.
Patent GB-622790-A (GB)
Title: Improvements in or relating to fluid control valves
IPC: F16K31/56
Filed: 1947-04-09
Abstract: 622,790. Manually-actuated valves. HOWDEN & CO., Ltd., J., and NELSON, W. April 9, 1947, No. 9457. [Class 135] A valve which is normally opened and closed by turning a screwed rod 1, may be opened instantly in an emergency by breaking a toggle 9, having one link pivoted to a fixed point on the valve structure, and the other pivoted to a lever 6 carrying a nut 4 in engagement with the threaded part of the rod 1. A spring 10 is mounted to urge the ends of the toggle together, and an operating link 11 is provided at the joint. The lever and toggle links may be duplicated for balance as in Fig. 2. The operating link 11 may be replaced by a lanyard.
Patent GB-474888-A (GB)
Title: Therapeutic apparatus for stimulating the growth of hair on the scalp
IPC: A61H7/00
Filed: 1937-04-02
Abstract: 474,888. Pneumatic head treatment appliances. CROSLEY RADIO CORPORATION. April 2, 1937, No. 9458. Convention date, May 16, 1936. Addition to 474,550.. [Class 81 (ii)] In apparatus according to the parent Specification for treatment of the scalp, the helmet or cap comprises a rigid helmet-shaped member 1, and a flexible, elastic sealing member 55, detachably mounted on the rim of the former and having a pair of annular flanges 58, 59, one above the other respectively projecting inwardly from the rim and from above the rim of the helmet-shaped member to engage with the head of the user of the device. The rubber sealing member 55 is bent as shown over bead 54 on member 1 and held in position by a resilient band 60 and optional metal ring 63. A sponge rubber ring 62 is preferably mounted between the flaps 58, 59. A sponge rubber pad 61 is disposed in the top of the helmet and is apertured at 61a to correspond in position with the tube 1a connected to the pumping apparatus. The tube 1a is preferably connected to the top of the helmet.
Patent GB-1495337-A (GB)
Title: Engine with a foot pedal speed control
IPC: B60K26/02
Filed: 1975-03-06
Abstract: 1495337 Engine control linkages DEERE & CO 6 March 1975 [7 March 1974] 9469/75 Heading F1B [Also in Division B7] The subject-matter of this Specification is identical with that described in Specification 1495336, but the claims are concerned with the relatively pivotable pedal portions connected to the engine speed control device.