baber/WOPTO huggingface dataset:
Patent GB-476366-A (GB)
Title: Improvements in or relating to shearing machines for cloth
IPC: D06C13/00
Filed: 1937-04-23
Abstract: 476,366. Machinery guards. FIRTH, H. E., and JOHNSON, T. April 23, 1937, No. 11615. [Class 80 (iv)] A safety device for protecting the fingers of operatives when cleaning the rotary cutters of cloth-cutting machines, comprises a spring- pressed pawl 15 pivoted on the frame of the machine, and a ratchet wheel 13 fast on the spindle 4 of the cutter. When the cutter frame 5 is raised about the pivot 6, to facilitate said cleaning, the pawl, which had previously had its point above and away from the wheel, engages the latter, as shown, and stops the motion of the cutter. A guard 10 supported on bell-crank arms 11 and which normally lies in front of the cutter when working, is swung clear of the cutter during the raising of the latter.
Patent GB-1461061-A (GB)
Title: Method and apparatus for controlling exposure of a printing material
IPC: G03B27/72
Filed: 1974-03-15
Abstract: 1461061 Photographic printer; controlling contrast AGFA-GEVAERT AG 15 March 1974 [17 March 1973] 11623/74 Headings G2A and G2X A method of controlling the exposure to two colours of printing light of sensitive material whose gradation is different for each colour comprises:- (a) making a test exposure on a piece of said material so that the total exposure of the material varies across the material along the x-axis and the ratios of the exposures in each colour (preferably blue and yellow) varies along the y-axis, (b) attaching the processed test exposure 1 to a transparent  drum 2 with the x-axis parallel to the drum axis, a light source being located inside drum 2, (c) measuring the max and min densities of an original to be printed and locating photo-cells 8, 9 at corresponding positions on a density scale 5, (d) setting resistors 11 and 13 according to the max and min densities required in the copy to be made, (e) comparing the output of photo-cell 8 with resistor 11 by means of an amplifier 10 which drives a motor 7 to move the scale 5 along the x-axis until the output of photo-cell 8 equals the setting of resistor 11; and comparing the output of photo-cell 9 with resistor 13 by means of an amplifier 12 which drives a motor 4 to rotate a drum 2 until the output of photo-cell 9 equals the setting of resistor 13; the movement of scale 5 and drum 2 altering potentiometers 19, 20 which are connected in an exposure control circuit (Fig. 3), pot 19 determining the total exposure and pot 20 the colour ratio. In Fig. 3, pots 22 and 21 are set according to the blue and yellow sensitivities respectively of the sensitive material and initially pot 22 is connected in by a switch 23 and a blue filter is located in the exposing path. When scale 5 and drum 2 stop moving, switches 15 and 16 are automatically closed, the shutter is opened and a transistor 28 is turned off whereby an amplifier 26 starts integrating. Initially amplifier 26 integrates at a rate determined by pots 19, 22; an amplifier 33 compares the integration voltage with the setting of pot 20 to replace the blue by a yellow filter and to change over switch 23 to connect in the yellow sensitivity pot 21; and finally an amplifier 32 responds to the integration voltage to terminate the exposure.
Patent GB-236336-A (GB)
Title: Improvements relating to the application of cellulose hydrates
IPC: D06M13/148
Filed: 1924-05-12
Abstract: For the purpose of preventing or controlling the shrinkage of hydrated cellulose products, such as artificial silk, films, and bottle capsules, the water of hydration of such hydrated celluloses is displaced by means of glycerin and is absorbed by one or more soluble deliquescent salts incorporated with the material; these salts can be subsequently removed by washing, so permitting the product, on drying, to shrink.  In the case of fabrics woven partly of artificial silk so treated, or of mixed yarns, the shrinkage produces the effects of craping.  For the treatment, a solution of glycerin and zinc chloride is conveniently employed, a base or zinc acetate being added for the purpose of neutralizing the acidity of the zinc chloride; or calcium or magnesium chloride, if necessary with an addition of calcium or magnesium acetate, may be used in place of zinc chloride.  The degree of hydration retained and the consequent shrinkage can be modified by varying the strength of the solution and the relative proportion of its constituents.
Patent GB-238017-A (GB)
Title: Improved means for mounting insulators suitable also for other purposes
IPC: H01B17/20
Filed: 1924-05-12
Abstract: 238,017. Dean, G. H., and Twiss Electric Transmission, Ltd. May 12, 1924. Screw - sockets. - Two articles 6, 7 of different coefficients of expansion are connected by a member made of a single layer 1 of smooth metal or metallic alloy, such as tin alloy, having a coating 4 of a soft or plastic substance of low mechanical yield point, such as bitumen. Specification 120,336, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-851822-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/14
Filed: 1959-04-07
Abstract: 851,822. Electrostatic precipitation. CONTINENTAL CARBON CO. April 7, 1959 [July 18, 1958], No. 11777/59. Class 39(1). In an electrostatic precipitator a housing contains collector electrodes 2 and high tension rod electrode 32. The electrodes 2, 32 are mounted vertically to form horizontal ducts A, B . . .N,O, and the gas is made to follow the tortuous path 7 so that precipitation by means of centrifugal as well as electrostatic action will occur. The end portions 4 of the electrodes preferably subtend an angle of 127 degrees with the rods 32, which are centrally situated with respect to the curved portions 4. The ducts are formed with a series of eight alternately disposed electrodes 2. Preferred dimensions are stated in the Specification. End baffles 14 are avoided at each corner of the precipitator, and a prismatic hopper is disposed beneath the ducts A ... O, to collect the precipitated material.
Patent GB-436873-A (GB)
Title: Improvements in or relating to the testing of protective coatings
IPC: B27B5/20
Filed: 1934-04-19
Abstract: 436,873. Testing surface textures. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. April 19, 1934, No. 11849. Convention date, April 19, 1933. [Class 97 (i)] In order to test a protective coating for flaws, there is applied to the coating a covering of a solution of a chemical compound capable of yielding a colour or a colour change with another chemical compound, the solution being removed after some time and the coating then being covered with a solution of a chemical compound capable of yielding a colour or a colour change with the first compound, so that flaws in the coating acquire the said colour or undergo the said colour change. In a specific example described for testing a homogeneously leaded object, the surface is painted with sulphuric acid which is washed off after about two hours with a water jet. After drying, the surface is painted with a Congo-red solution to which glue is added, or with a titanium white suspension coloured with Congo-red. After a short time flawed places show a blue colouration. The Congored may be replaced by other dyestuffs which are not fast to acid.
Patent GB-108884-A (GB)
Title: Improvements in connection with Apparatus for the Production of Ice or Refrigerative Effects.
Inventor: ORMANDY WILLIAM REGINALD
IPC: F25B17/08
Filed: 1916-08-21
Abstract: 108,884. Ormandy, W. R., and Calvert, W. E. Aug. 21, 1916. Refrigerating, absorption machines for.-The transfer of heat to or from the walls or fittings of the absorber or generator, or absorber-generator, other than parts supporting the absorbent or conveying heating or cooling media, is prevented or minimized by the employment of insulating material as a lining or fitting in the interior of the vessel. The invention is described in connexion with processes and apparatus in which a solid absorbent, such as ammonium nitrate or calcium chloride, is carried upon trays or supports 3 fitted with heating or cooling coils 7. The insulating material 2 is fitted as a lining to the pressuresustaining walls 1, and may itself be an absorbent of ammonia, such as charcoal. Where the product resulting from absorption is a liquid liable to froth, the insulating material may be protected by a metal lining, but such is unnecessary where an absorbent material such as infusorial earth is added to the gas absorbent to prevent the formation of a liquid. Specification 17672/15 is referred to.
Patent GB-869844-A (GB)
Title: Method of preparing hydrolyzable silyl thioethers
IPC: C07F7/18
Filed: 1959-04-08
Abstract: Hydrolysable silyl thioethers of the formula:  (RSR1)mSi(R11)nX4-m-n where R and R11 are hydrocarbon radicals free of olefinic unsaturation, R1 is an alkylene radical having at least 2 carbon atoms, X is a hydrolysable group, m is 1, 2 or 3, n is 0, 1 or 2 and m+n is at most 3, are prepared by irradiating with ultra-violet a mixture of a mercaptan of the formula RSH and a silane containing at least one silicon-bonded olefinically unsaturated hydrocarbon radical and at least one silicon-bonded hydrolysable group.  The groups R and R11 include alkyl, cycloalkyl, aryl and aralkyl radicals.  The hydrolysable groups include halogeno, alkoxy, aryloxy and acyloxy radicals.  In the Examples: (2) (CH3)(CH3SCH2CH2)Si (OC2H5)2 is prepared from methyl mercaptan and MeViSi(OC2H5)2; (3) (CH3)(C6H5SCH2CH2) Si(OC2H5)2 is prepared from phenyl mercaptan and MeViSi(OC2H5)2; (4) (CH3) (C6H5SCH2CH2)SiCl2 is prepared from phenyl mercaptan and MeViSiCl2; (5) (CH3)(C12H25 SCH2CH2)Si(OC2H5)2 is prepared from dodecyl mercaptan and MeViSi(OC2H5)2; (6) (CH3) <FORM:0869844/IV (a)/1> is prepared from 2-ethylhexyl mercaptan and MeViSi(OC2H5)2; the product of (4) is converted to the acetoxy derivative by refluxing with sodium acetate; (8) the product of (2) is hydrolysed with dilute HCl to give a polysiloxane of unit formula: <FORM:0869844/IV (a)/2> In Example 1, given for comparison, a solution of sodium in butyl mercaptan and ViSi(OEt)3 is refluxed to give C4H9SCH2CH2Si(OC2H5)3.  Uses: as polysiloxanes for lubricants, hydraulic fluids, moulding compositions and wire insulation. Specification 618,608 is referred to.
Patent GB-1061527-A (GB)
Title: Apparatus for cooling artificial ultrashort-wave aerials
IPC: H01Q1/02
Filed: 1964-03-20
Abstract: 1,061,527. Power measurement of radio transmitters. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG ADOCSOGYARA. March 20, 1964 [May 17, 1963], No. 11901/64. Heading H4L. [Also in Divisions F4 and G1] The power of a high-frequency transmitter feeding into a resistive dummy load, which is cooled by the closed cycle operation of evaporation and condensation of a cooling liquid, is determined by recovering the evaporated liquid and measuring the amount of liquid recovered. The dummy load, Fig. 1 (not shown), comprises a conductive conical member (1), attached at. its narrow end to the central conductor of the feed cable. The outer conductor of the feed cable is connected to a conical member (2), a cylindrical member (7) and an exponentially shaped terminating member (5), so dimentional as to cause the load to be non-reflective. The resistive part of the load is a layer of crystal boron carbon or metal formed on the inside of a porcelain cylinder (3) and is electrically connected to member (1). The cooling liquid enters by tube 6, flows up the cylinder (3), where it is vaporized and leaves by tube 9, passing through a perforated conical turbulence damper 10. The evaporated liquid passes up a tube 11, Fig. 2, and is condensed in a radiator tube 12 cooled by a fan 13. When it is desired to merely cool the dummy load, a valve 15 is closed and the condensed vapour passes via tube 19 to entrance pipe 6 to recommence the cycle. When a power measurement is to be taken valve 15 s opened to empty measuring vessel 14, and then closed again. The time taken for a specific amount of condensate to collect in vessel 14 is taken and enables the power to be determined.
Patent GB-295232-A (GB)
Title: Operating mechanism for net-making machines
IPC: D04G1/00
Filed: 1927-05-04
Abstract: 295,232. Saibi Mojiami Kabushiki Kaisha, and Kakuda, S. May 4, 1927. Net - making machines. - Relates to improvements on the machine described in Specification 153,492 for making knotless netting. The Figure shows in plan one end of the machine, with the mechanism for driving the reoiprocating guide plate 2, spools 6. take-up roller 8, reed 85 &c. A driving shaft 9 carries several set s of pinions 10 - - 13. Each set consists of three pinions each of which locks certain teeth or a single pinion with three sets of interrupted teeth may be used. The set 10 operate shafts such as 15, which control the intertwisting of. the strands, and the teeth mesh with a gear 16 during the intertwisting operation only. Pinions 16, 17 move together longitudinally on a shaft 18 and the gear 17 meshes with a gear 19 on a shaft 20 which carries another gear 21 and so drives the shaft 18. A brake 62 holds the parts in position while the gears 10, 16 are out of mesh. The set of pinions 11 operate the guide plate 2, through gears 27, 29 and 30 and a crank shaft and connecting rod. The roller 8 is operated by an eccentric 54 and the reed 85 similarly. The pinions 12, 13 control the movement of the outer and the intermediate bobbin-carriers respectively.
Patent GB-1212022-A (GB)
Title: Hydrodimerisation of unsaturated nitriles or carboxylates
Inventor: DIPROSE GORDON
IPC: C01D7/00
Filed: 1967-03-14
Abstract: 1,212,022. Process for the hydrodimerization of α,# - mono - olefinic nitriles and carboxylates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Feb., 1968 [14 March, 1967], No. 11952/67. Heading C2C. A continuous process for the production of a hydrodimer of an alpha-beta-mono-olefinic nitrile or carboxylate wherein an alkali or alkaline-earth metal amalgam is interacted with a non-analgam phase comprising the said nitrile or carboxylate, a proton source and a major proportion by weight of polar organic solvent, the apparent pH being maintained in the range 7 to 11À5 by addition of an acidic buffering agent, a suspension of the alkali or alkalineearth metal salt (formed from the acidic buffering agent and the metal of the amalgam) being maintained within the reaction zone, a portion of the non-amalgam phase containing the said metal salt in suspension being recycled to the reaction zone and another portion of the non- amalgam phase containing the said metal salt in suspension being treated with water and/or a non-polar organic solvent to form an organic phase containing the hydrodimer from which the hydrodimer is separated and an aqueous phase containing the said metal salt. The proton source is water or lower alcohols or mixtures of water and such alcohols. Examples prepare adiponitrile from acrylonitrile. Methyl and ethyl acrylates are also specified as starting materials.
Patent GB-1137485-A (GB)
Title: Improvements in or relating to mine shoring
Inventor: HOBSON GEORGE CLARENCE
IPC: E21D11/22
Filed: 1965-03-22
Abstract: 1,137,485. Yielding mine roof supports. HAYDEN-NILOS Ltd. 21 March, 1966 [22 March, 1965], No. 11965/65. Heading E1E. A yielding mine arch support for use with a mine arch of H-section 2 comprises a single stilt 1 of channel section with a pair of guide blocks 5 removably secured thereto to define with the channel a T-section space, see Fig. 2 (not shown), for guiding the inside flanges and the web of a leg of an arch, the guide blocks, as by means of bars 14, 15, providing a converging gap for an expendible yielding element 3 of tubular cross-section engaged with the web of the leg of the arch. The stilt may be reinforced by a strap or bracing welded thereto, see Figs. 4, 5 and 6 (not shown).
Patent GB-831646-A (GB)
Title: Improvements in or relating to the arrangement of slip rings on the rotor of an electrical machine
Inventor: RUSSELL-JONES DONALD
IPC: H01R43/10
Filed: 1956-04-20
Abstract: 831,646. Collecting gear for dynamo-electric machines. KETAYLtd. April 17, 1957 [April 20, 1956], No. 12085/56. Class 35. A slip-ring assembly for an electric machine rotor, e.g. of a synchro, comprises moulding an integral electrically-insulating synthetic resin body 14 between a plurality of mutually axiallyspaced slip-rings 9, 10 and between the sliprings and the machine rotor shaft 1 or an integral reduced diameter extension 6 thereof or a centre-pin (not shown), fixed to the shaft, the requisite conductor leads 3, 4 being embedded in the body which holds all the parts together and insulates the rings from each other and from the shaft &c. Each lead, covered with nylon insulation 8, is accommodated in grooves 11, 7 in the slip-rings and shaft &c. and is soldered to the respective ring grooves.
Patent GB-566265-A (GB)
Title: A new or improved method for making soldered joints
IPC: B23K1/00
Filed: 1943-07-26
Abstract: 566,265. Soldering. SANTON, Ltd., and TREVELYAN, R. J. July 26, 1943, No. 12104. [Class 83 (iv)] In making soldered joints between parts, such as wires or other cylindrical bars and parts into which they are inserted by solder washers carried bv the parts, a number of parts are mounted in a jig which is then raised to melting temperature of the solder metal to effect the joints. The parts may consist of copper wires 5 carrying solder washers 9 and inserted into holes in brass electric terminals 3, the parts being mounted in a jig 8.
Patent GB-836494-A (GB)
Title: Weight make-up device for containers
IPC: G01G21/00
Filed: 1958-04-16
Abstract: 836,494. Automatic feed weighers. SUCCESSEURS DE B. TRAYVOU. April 16, 1958 [April 19, 1957], No. 12128/58. Class 143 Partly filled bags or other containers 20 are suspended from a beam 1 by a clamp 9, 11 while the final weight of the charge is made up by a vibratory feeder 22. When the beam tips contacts 16 stop the feeder and energize an electromagent 15 which opens the jaws and allows the filled bag to fall on to a discharge belt conveyer 23. The jaws are temporarily opened to permit manual application of the next bag by a switch 18 in circuit with the electromagnet 15. A weight 5 is provided to compensate for the material in suspension at cut off.
Patent GB-270740-A (GB)
Title: An improved process for working up mixed shavings of white metal and red metal
IPC: C22C3/00
Filed: 1927-05-05
Abstract: 270,740. Schwarz, A., (Assignee of Internationale Metall Akt.-Ges.). May 5, 1926, [Convention date]. Granulating.-Mixed turnings, shavings, &c., of white and red metals are treated to obtain the white and red metals separately by heating the mixture to such a temperature that the white metals but not the red metals are melted. The mixture is then subjected during slow cooling to disintegration, for example by scouring, the hard particles of red metal being utilised as scouring agents. The white metals are thereby caused to assume a finer grain than the particles of red metal and the mixture can thereafter be separated by sifting. A small proportion of graphite, charcoal, fluorspar, oil, tar, or other material may be added to the mixture before treatment. In a modification, the mixture is heated as above, but the greater part of the molten white metal is withdrawn before applying the disintegrating step, the addition of the graphite, &c., being essential in this case.
Patent GB-119437-A (GB)
Title: Improvements relating to Fluid Pressure Braking Apparatus.
Inventor: TURNER WALTER VICTOR
IPC: B60T15/04
Filed: 1918-07-25
Abstract: 119,437. Turner, W. V. Oct. 16, 1917, [Convention date]. Fluid-pressure. - Relates to means for connecting the brake equipment of a locomotive for control with the train system when the locomotive is being hauled as a dead vehicle. Such means ordinarily include a cutout cock such as 14 in the usual pipe connexion between the train-pipe 12 and the driver's valve 1 and a connexion with a restricted passage between the train-pipe and the main reservoir 5 for charging this reservoir. A connexion 15 from the train-pipe to the seat of the driver's valve is provided to permit an emergency application to be effected when the cock 14 is closed. With this arrangement, the train-pipe pressure beneath the rotary valve is superior, when the system is being charged, to the pressure in the chamber 2 of the valve which is connected to the main reservoir and the valve is liable to be blown off its seat. To prevent this, a connexion having a cock 17 is provided whereby when the locomotive is being hauled the train-pipe may be directly connected with the valve chamber 2 as shown in Fig. 2, and the charging connexion for the main reservoir is provided by a bypass 18 in which the restricted passage 20 and a check-valve 21 are arranged.
Patent GB-683427-A (GB)
Title: Improvements in or relating to charts adapted for mounting in tubular chart holders and to chart and recorder assemblies
IPC: E21B47/12
Filed: 1950-05-16
Abstract: 683,427. Recording-apparatus. GEOPHYSICAL RESEARCH CORPORATION. May 16, 1950 [May 26, 1949], No. 12177/50. Class 106 (iv). A chart, adapted to be placed in the tubular chart-holder 1, Fig. 1, of, for example, a recording pressure gauge for oil wells as described in U.S.A. Specification 1,837,222, so as to receive the impression of a stylus 13, comprises a normally flat sheet 15, Fig. 3, of springy material formed with outwardly-angled flanges 16; the width of the sheet between the flanges is such that when the sheet is bent into cylindrical shape with the flanges projecting inwardly and is placed inside the holder, the free edges of the flanges bear against one another and, due to the resilience of the material, cause the chart to conform to the inner surface 2 of the holder 1 without flat portions at its adjacent edges. To facilitate the insertion of the chart, a mandrel 17, Fig. 5, with an axial groove 18 is provided, the sheet being wrapped around the mandrel with its flanges 16 radially in the groove 18. The chart may be made of tempered copper, brass, or aluminium or its alloys, or other material having similar elasticity. The chart may have a plain metal surface into which the stylus cuts or it may be provided with a coating of paint or enamel. The chart-holder 1, which is moved axially by a rod 7 during recording, has attached thereto a spring 8 bearing against the inner housing 9 of the instrument and carries a guide 10 for the stylus arm 11. A spring 12 attached to the arm 11 carries the stylus 13 which is moved circumferentially by variations in pressure. A further spring 14 centralizes the arm 11 relatively to the guide 10.
Patent GB-349728-A (GB)
Title: Improvements in or relating to knitted fabrics, the method of and machines for making the same
IPC: D04B1/00
Filed: 1930-04-17
Abstract: 349,728. Knitting. MELLOR BROMLEY & CO., Ltd., BROMLEY, T. C., and SHORTLAND, A., St. Saviour's Road East, Leicester. April 17, 1930, No. 12186. [Class 74 (ii).] A double walled fabric is made in which one or each wall is characterised by variations from normal plain loop formations, e.g. tuck stitches, missstitches, &c., which occur elsewhere than at the places where the two webs are connected together. The Figure shows an over-all cross tuck effect in both webs. The joining may be achieved by the yarn of one web being knitted into or merely engaging the loops of the other. The invention may be carried out on an eight-feeder machine with a cylinder and dial in which slide bearded or latch needles having butts of three different lengths. Figs. 1-5 (not shown) illustrate cams for knitting miss-stitch or tuck fabric in one or both walls. Every twelfth needle in the cylinder or dial or both has a long butt. The rest are short and medium butts arranged alternately. Either web may include plated and colour effects.