baber/WOPTO huggingface dataset:
Patent GB-200253-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1922-04-25
Abstract: 200,253. Dodson, E. April 25, 1922. Spray carburettors. -Waste of fuel from fu.el-supplying devices which are not constantly in use is prevented by venting such devices to the atmosphere when inoperative, for example by means. of a groove or recess in the throttle valve. The method is described in Specification 171,027 as applied to the slow-running nozzle and the invention consists in its application to a nozzle for supplying a fuel, or a fluid such as water to prevent knocking, which is in action at the fully or nearly fully open position of the throttle valve. The additional nozzle C, Fig. 1, is in communication with the passage A<2> of the cylindrical throttle valve A by a radial duct A<3> when the throttle is fully or nearly fully open. At other times the nozzle chamber Z is vented to the atmosphere at B<3> by a recess A<o> in the curved face of the throttle. In a modification, a second smaller radial duct is provided to serve as a slow-running supply and in the closed position of the throttle registers with the chamber Z. In a further modification, the chamber Z communicates with a duct Z<2>, Fig. 3, which is formed in the end of the throttle casing B and supplies two transverse passages Z<3>, Z<4> leading to two axial passages Z<5>, Z<6> in the casing. The axial passages communicate in the open and closed positions of the throttle with radial ducts A<9>, A<8> respectively. The venting recesses and air inlets are shown at A<11>, B<11>, A<10>, B<10>. Air may be admitted to the nozzle chamber at M. In the modification shown in Fig. 4, the slow-running duct A<12> and the duct A<13> for the open position of the throttle are supplied under different heads from a well G through a pipe H and perforated tube K respectively. The well is open to the atmosphere through an adjustable, port J<2>. The venting recesses are shown at A<14>, A<15>, In a still further modification, the throttle valve has duplex passages in communication with the additional nozzle through ducts in the wall dividing the passages. The necessity for using a closely fitting throttle barrel is obviated but the throttle is not necessarily of barrel form.
Patent GB-494247-A (GB)
Title: Improvements in or relating to thermostatic mixing valves
IPC: G05D23/13
Filed: 1937-04-23
Abstract: 494,247. Thermostatic mixing - valves. SADLER, A. T. (Leonard-Rooke Co.) April 23, 1937, No. 11620. [Class 135] In a thermostatic mixing device in which the admission of the respective fluids to a mixing chamber is controlled by a valve adjusted by a thermostatic coil, the inner end of the coil 35 is coupled to a rotatable sleeve 46 having an eccentric pin or finger 48 engaging a unitary valve body 32, having parts which control the different fluid streams to vary the proportions of each fluid. The form shown comprises two flanged casing members 10, 11 connected by bolts 15 to form a housing for the coil 35. The outer end of the latter is anchored to an arm 43 fixed on a shaft 36 which carries a handle 49 and a pointer 50. The pin 48 is carried by a crank arm 47 on the sleeve 46 and engages an annular groove 34 in the valve body 32 which is of double conical form. The latter slides on a ported tube 28 communicating directly with the inlets 16, 17 for the hot and cold fluids. These inlets respectively open into chambers 20, 21, which contain filters 22, 23 removable by unscrewing caps 24, 25. The tube 28 has a central partition 29 and seats in recessed threaded nipples 24a, 25a. The tube 28 has three radial ports 30, Fig. 6, for the cold fluid and only two, 31, for the hot fluid, all of which are arranged to direct the inflowing streams away from the coil 35 to facilitate thorough mixing before the fluids reach the coil. The shape of the valve is stated to have the same effect. A partition 52 separates the outlet chamber 51 from the valve chamber. In a modification, the double conical member 32 is not formed as the valve but is rigidly connected to two piston valves. In this case stationary deflectors may be mounted about the stems of the piston valves to deflect fluid away from the conical body.
Patent GB-610857-A (GB)
Title: Process for the production of chromable azo dyestuffs
IPC: C09B45/16
Filed: 1946-04-16
Abstract: 3 : 4 - Dichloro - 5 - nitro - 2 - aminophenol - 6 - sulphonic acid is obtainable by forming the benzoxazolone from 3 : 4 - dichloro - 2 - amino - phenol-6-sulphonic acid by means of phosgene, nitrating, and then opening the oxazolone ring with alkaline agents. Specifications 11196/06, [Class 2], 145,053, [Class 2 (iii)], and 460,561 are referred to.ALSO:Chromable azo dyestuffs, suitable for use in the metachrome dyeing process, are manufactured by coupling diazotized 4-chloro- or 3 : 4-dichloro-5-nitro-2-aminophenol-6-sulphonic acid with 5 : 8-dichloro-1-naphthol.  Examples are given of the production of both dyestuffs, of which the first dyes wool from an acid bath in red-violet shades becoming bluish-grey on after-chroming, whilst the second dyes wool from an acid bath in blue-violet shades and yields greenish-blue dyeings by after-chroming or by the single-bath chroming process. Specifications 11196/06, [Class 2], 145,053, [Class 2 (iii)], and 460,561 are referred to.
Patent GB-688137-A (GB)
Title: Improvements in or relating to sheet-registering mechanisms
IPC: B65H9/10
Filed: 1950-05-10
Abstract: 688,137. Feeding sheets. BACKHOUSE, H. T. May 10, 1951 [May 10, 1950], No. 11678/50. Class 100 (i). Sheet-registering.-A sheet-registering mechanism, of the type wherein the sheets are fed against a lay 7 by a friction wheel 1 co-operating with a companion wheel 3 to grip the sheet, is characterised in that only a portion of the periphery of the wheel 1 is utilised in feeding any given type of sheet, and different portions of the wheel have different frictional characteristics for feeding various types of sheet. In a side-lay mechanism, the friction wheel 1 is located below the layboard and co-operates with a companion wheel 3 above the board, the wheels being separable or brought together by a cam 5 against the action of springs 4, 6. Plates 8 and 9 maintain the sheets flat during registration. The wheel 1 is keyed to the cam 5 by pins and can be rotated relatively to it, to bring any of its four quadrants into use, by removal and reinsertion of the pins, the four quadrants having different surface characteristics.
Patent GB-716916-A (GB)
Title: Improvements in or relating to oxidation-resistant elastomers
IPC: C08L21/00
Filed: 1952-05-09
Abstract: A composition resistant to oxygen, ozone and oxidizing agents, comprises a homogenous mixture of a chemically unsaturated elastomer and at least 10 per cent. by volume of the elastomer of a chlorosulphonated normally solid polymer of ethylene.  Suitable elastomers are natural rubber, isomerized rubber, polychloroprene, polybutadiene and copolymers of butadiene with acrylonitrile, styrene and isoolefins, e.g. isobutylene. Specified compositions include as compounding ingredients, hydrogenated rosin, tribasic lead maleate, mercaptobenzothiazole, phenyl-alpha-naphthylamine, carbon black, 2-mercaptoimidazoline, benzothiazyl disulphide, diphenyl quanidine, the methyl compound of the material known under the Registered Trade Mark "Tuado", the anti-oxidant known as "Agerite Hiper," zinc oxide, stearic acid, sulphur, magnesium oxide and dibutyl phthalate.  The compositions are useful in many applications which are listed. Specification 542,414 is referred to.ALSO:A curable composition resistant to oxygen, ozone and oxidizing agents comprises a homogeneous mixture of rubber or isomerized rubber and at least 10 per cent. by volume of the rubber of a chlorosulphonated polyethylene.  Ingredients which are compounded with the mixture are hydrogenated rosin, tribasic lead maleate, mercaptobenzothiazole, diphenyl guanidine, stearic acid, sulphur, zinc oxide and the anti-oxidant known as "Agerite Hipar".  The compositions are useful in many applications which are listed. Specification 542,414, [Group IV], is referred to.
Patent GB-716659-A (GB)
Title: Improvements in or relating to flange sections for welded plate girders
IPC: E04C3/06
Filed: 1952-05-09
Abstract: 716,659. Girders. SCHNADT, H. M. May 9, 1952 [May 18, 1951], No. 11816/52. Class 20 (2). [Also in Group XXII] A girder comprises a web 22 butt we'ded to one face of a flange 20 on the other face of which is a groove 23. The web may be welded to a rib 21 on the flange. A bar may be welded in to fill the groove. When girders are welded end to end a short plate or welding material may be welded in the ends of the grooves of the two girders. Figs. 1-6 (not shown) illustrate examples, of the prior art
Patent GB-592990-A (GB)
Title: Improvements in or relating to deaf aids
IPC: H04R25/04
Filed: 1945-05-11
Abstract: 592,990. Sets for deaf persons. SHIPTON, E. May 11, 1945, No. 11825. Drawings to Specification. [Class 40 (iv)] In addition to the usual microphone a deafaid has an inductive pick-up device, comprising a coil on an iron core, placed adjacent to the user's ear. When a telephone is being used the field of the receiver induces speech currents in the pick-up. In a preferred form, the pickup device is mounted on the end of a head band opposite to that carrying the ear-piece and a switch for changing over from a microphone to the pick-up may be associated with it so as to bo automatically operated when a telephone receiver is held against the ear.
Patent GB-1087782-A (GB)
Title: 1,2ª-methylene-steroids and a process for their manufacture
IPC: C07J1/00
Filed: 1965-03-19
Abstract: Novel compounds of the general formula <FORM:1087782/C2/1> in which X represents <FORM:1087782/C2/2> or <FORM:1087782/C2/3> or = O; Y represents = O, <FORM:1087782/C2/4> , <FORM:1087782/C2/5> , <FORM:1087782/C2/6> or <F7> (where R contains up to 4 carbon atoms and represents an alkyl, alkenyl or alkynyl group), Z represents a hydrogen atom or a methyl group and <FORM:1087782/C2/7> represents the grouping <FORM:1087782/C2/8> or, when X stands for oxygen, represents <FORM:1087782/C2/90> are obtained by subjecting a D 1-3b -hydroxy steroid of the general formula <FORM:1087782/C2/101> in which Y represents = O, <FORM:1087782/C2/112> , <FORM:1087782/C2/123> , <FORM:1087782/C2/134> or <FORM:1087782/C2/145> (wherein R1 contains up to 4 carbon atoms and stands for an alkyl or alkynyl group and Z is as defined above, in a boiling absolute ether, to the action of methylene iodide in the presence coppered zinc dust and, in any sequence depending on the desired final product, in the primarily formed 1,2b -methylenesteroid, oxidizing the 3-positioned hydroxyl group to the 3-keto group and/or hydrolysing any esterified hydroxyl group and/or esterifying any free or subsequently liberated hydroxyl group with the desired acid or reactive derivative thereof and/or if necessary with temporary protection of a 3-keto group if present by ketalization, oxidizing a 17b -positioned hydroxyl group to the 17-keto group, and if desired, introducing into the latter a 17a -positioned lower alkyl or alkynyl group by Grignard reaction, and optionally hydrogenating a 17a -alkynyl group introduced in this manner or by passing acetylene into a solution of the compound in the presence of alkali, to form the alkyl or alkenyl group and/or, if X stands for oxygen, introducing an additional D 4 double bond, preferably by means of selenium dioxide or 2,3-dichloro-5,6-dicyanobenzoquinone.
Patent GB-270354-A (GB)
Title: Signalling systems
IPC: H04L25/06
Filed: 1927-05-03
Abstract: 270,354. Electrical Research Products, Inc., (Assignees of Curtis, A, M.). May 3, 1926, [Convention date]. Code telegraphy; eliminating effects of dis turbing currents.-Means are provided for applying a correcting condition to the receiving apparatus for a predetermined time interval when the zero of the received signals varies beyond a definite amount, to compensate for such variation. The signals, after thermionic amplification, e.g. as described in Specification 258,614, are delivered to the receiving relay 14 and the polarized correct relay 16 from the plate circuit of the last amplifying valve 11. The circuit of each relay includes a series resistance such as 26 and a shunt resistance such as 25 which are adjustable simultaneously so that a change in the resistance 26 is compensated by a corresponding change in the resistance 25. The pivoted armature of the relay 16, controlled by adjustable springs 38, carries contacts 19 movable between contacts 20 and 21. The contacts are preferably or platinum iridium, one being flat and the other, contacting with it, sharply pointed. When the current through the relay 16 is suitably adjusted the contacts 19 oscillate between the contacts 20 and 21 without touching either so long as the zero of the received signals does not deviate more than, say, 5 per cent from the normal. When a greater deviation occurs contact is made at 20 or 21, according to the direction of the deviation, thus charging a condenser 28 from a battery 29 or 30 through a resistance 31 or 32, the tongue of the relay 16, and a resistance 33, and a condenser 17 connected to the grid 12 of the valve 11 is charged through resistances 34 and 35 and a filter circuit 37 from the condenser 28. The potential of the grid 12 is thus modified in a direction to correct for the deviation of the zero of the signals. A leak resistance 36 is provided for the condensers 17 and 28. The preliminary adjustment of the relay 16 is effected with the aid of a loud speaker 40 inserted in the output circuit. An unbiased alternating current is applied to the relay and the contacts 20 and 21 are adjusted until a click in the loud speaker is heard for each contact of 19 at 20 or 21. The resistances 25 and 26 are then adjusted until they cease or until the clicks indicate that only one contact 20 or 21 is being engaged, whereupon that contact is adjusted until no clicks are heard. Specifications 1434/99 and 23251/06 also are referred to.
Patent GB-1132810-A (GB)
Title: Field-effect transistor having insulated gates
IPC: H01L29/06
Filed: 1967-03-14
Abstract: 1,132,810. Field effect transistors. MATSUSHITA ELECTRONICS CORP. 14 March, 1967 [30 March, 1966], No. 11894/67. Heading H1K. A field effect transistor comprises at least two insulated gates with one or two " island " regions of conductivity type opposite to that of the main channel intermediate the source and drain and underlying part of each gate electrode and an insulated shield electrode overlying the centre of the islands. Fig. 1 shows a section through a field effect transistor comprising source region 1, drain region 3 and " island " region 2 all of a conductivity type opposite to that of the substrate 7. A first gate electrode 4 and a second gate electrode 6 on oxide layer 8 overlie the channel regions between source and island and island and drain respectively. A shield electrode 5 on the oxide layer overlies the " island " region 2; when this shield electrode is grounded or connected to source 1, the capacity between the first and second gates is reduced and separate input signals may be applied to these gates. The thickness of the oxide layer may be made thinner under the shield electrode or under one of the gate electrodes to vary the capacitative and control effect. The arrangement effectively provides two field effect transistors 1, 4, 2 and 2, 6, 3 and the lengths of the two channels (sourceisland and island-drain) may be made different to provide different saturation current characteristics. A further " island " and a third gate may also be provided and embodiments comprising annular or U-shaped zones and electrodes are also described. The semiconductor material may consist of silicon, germanium, cadmium sulphide, or gallium arsenide and the insulating layer of SiO, SiO 2 , silicon nitride or magnesium fluoride.
Patent GB-455609-A (GB)
Title: Improvements relating to the production of disintegrated peat
IPC: C10F7/00
Filed: 1935-04-17
Abstract: 455,609. Excavating. TESTRUP, N., GRAM, T., HARTMANN, P., and TECHNOCHEMICAL LABORATORIES, Ltd., 47, Victoria Street, Westminster. April 17, 1935, No. 11898. [Class 68 (i)] [See also Group XII] Peat is excavated and spread out in disintegrated form in one operation by the action of a rapidly rotating disc member caused simultaneously to excavate a ditch of considerable depth adjoining the area and directly to scatter the peat thereover. The disc member a, having a frusto-conical border a<1> terminating in a knife edge angled to about 20‹, and radial angle irons a<3> on its concave side is mounted on a slightly inclined axis, and receives a rotational drive through a shaft b and universal joints b<1> while being advanced along the bog with its axis slightly oblique to the line of movement x. A swivel jib arm c mounted in pivots v on a tractor (not shown), may lie at a backward inclination and support the shaft b from the disc to a bevel &c. gear d driven by the tractor motor. The end of the jib is supported by wheels f and connected by a tie e with an arm e<1> attached to the tractor chassis. A counterweighted second arm e<3> may be connected at the same point and by a tie e<4> with the upper end of arm e<1>, the two arms being moved angularly by wire rope e<5> to adjust the height of the disc. A suitable speed of rotation is 200 revolutions per minute. Specification 412,169, [Group XII], is referred to.
Patent GB-696483-A (GB)
Title: Improvements in or relating to the fluid treatment of yarn
Inventor: EASTWOOD PHILIP
IPC: D01D10/04
Filed: 1950-05-12
Abstract: In the fluid treatment of yarn such as nylon in which the yarn wound on a perforated supporting member has steam or other treatment medium forced outwardly through it, sealing members are located on the yarn support so as to have a wall forced outwardly into contact with an inner wall of the support, thus preventing escape of the steam or treatment fluid.  A base securing portion is located within an annular groove so that movement of the sealing member in a longitudinal direction is limited.  The Figure shows a support for the steam treatment of nylon yarn in which the package of <PICT:0696483/IV (c)/1> yarn 1 is formed on a hollow cylindrical perforated support 17, the internal diameter of which is of the same order as that of the enlarged mid-portion 7 of a perforated hollow cylindrical member 5 so that undue movement of member 17 is prevented thereby.  Steam is passed from member 3 through perforations 15 and through the perforations in member 17 into the yarn package a number of supports such as shown being contained in a steam chest in which a steam pressure of about 25 pounds/square inch is attained.  The upper and lower ends of support 17 are sealed by a flexible sealing member 11, e.g. of rubber, which has a projection fitting tightly into an annular groove 9 and a wall 13 of tapered formation which under the steam pressure is forced into contact with the member 17 and prevents the exit of steam from the ends of the support so that the steam is forced radially through the yarn package 1.
Patent GB-581031-A (GB)
Title: Improvements in or relating to sealed electric plug and socket connections
IPC: H01R13/52
Filed: 1944-06-23
Abstract: 581,031. Two-part couplings. WEBB, C. D. H., BURGESS, F. H., and PLESSEY CO., Ltd. June 23, 1914, No. 11934. [Glass 38 (i)] A multi-pin and socket coupling is sealed at the junction of the plug and socket units by a rubber gasket 6 forming part of a shroud 3 covering one unit; e.g., the plug unit. A rotatable headed sleeve 8 passes freely through the pin-base 1 and shroud 3, and is secured by a spring clip 12 in a groove 10. The contact sockets 15 are mounted in an insulating base 16, which has conical extensions 21, fitted in a metal cover 18 and is secured by a stud 19 threadedly engaging the sleeve 8 for drawing together and locking the parts of the coupling. Packing rings 13, 13a, 14, 14a are inserted round the interlocking means, and the contactpins 2 and the sockets 15, respectively. A cover 7 clamps the shroud and has one edge cut away to clear an extension 4 of the shroud containing lead wires 5.
Patent GB-559627-A (GB)
Title: Improvements in and relating to electric condensers of variable capacity
Filed: 1942-08-26
Abstract: 559,627. Variable condensers. FABER, A. Aug. 26, 1942, No. 11999. [Class 37] A condenser comprises one fixed electrode 1 co-operating with a shorter fixed electrode 3, through a layer 2 of dielectric, there being associated with the electrode 3 a further movable electrode 4 so arranged as to vary the capacity. In the example, this is effected by screwing the latter into and out of the fixed electrode 3. An example is described in which three concentric condensers of this type are arranged to be varied simultaneously, the centre one only bearing a screw thread, the others being moved accordingly by a common insulating disc head. The electrodes are made of a material comprising two substances of positive and negative or relatively low coefficient of expansion with temperature, mixed to give a zero or other desired low coefficient, for example of powdered metal mixed with coal, graphite, silicon or a silicate.
Patent GB-1458543-A (GB)
Title: 2,4-quinazolindione-polyamide-ester resins their preparation and use
IPC: H01B3/30
Filed: 1974-03-19
Abstract: 1458543 Polyester-amides INSTITUT FRANCAISE DU PETROLE 19 March 1974 [21 March 1973] 12191/74 Heading C3R A polyamide-ester resin is obtained by the condensation in an organic solvent of: (a) a carboxylic component consisting of (i) 100 to 5% (based on carboxylic equivalents) of a 2,4- quinazolinediene ring-containing diacid of the formula where R is a divalent aliphatic, alicyclic or aromatic radical; (ii) 0 to 95% of one or more aromatic at least dicarboxylic acids not having 2 carboxyl groups ortho or pari; and (iii) 0 to 10% of one or more aliphatic dicarboxylic acids, and/or C 1-6  alkyl esters of such acids; (b) an amine component comprising (i) 70 to 100% (of amine equivalents) of at least one aromatic diprimary amine and (ii) 0 to 30% of an aliphatic diprimary amine, melamine or piperazine; and (c) an hydroxy component comprising (i) 50 to 100% (of OH equivalents) of an at least triol and (ii) 0 to 50% of one or more aliphatic and/or alicyclic diols, in proportions such that the ratio of the total amine and hydroxy: carboxylic equivalents exceeds 1 and of amine : carboxyl equivalents is 0À1 to 0À4. Condensation may be effected in one step but preferably (a) and (c) are first reacted to form a polyester which is then reacted with (b). Numerous suitable reactants and solvents are described; acids (a) (i) may be prepared by the process of Specification 1,380,798. The resins are stated to be useful as insulating enamels for conductive metal wires and may be used in the solvent in which they are prepared, and may be diluted with the same solvents or aliphatic or aromatic hydrocarbons. Properties of the varnishes may be improved or modified by including 0À1 to 10% (by weight of solids) of an alkyl titanate; 1 to 15 wt. per cent of an at least diisocyanate; 0À1 to 1 wt. per cent of a metal drier; 1 to 15 wt. per cent of a phenol-, cresol- or melamine-formaldehyde resin; or 0À5 to 2À5 wt. per cent of biphenyl. Reference is made to Specifications 1,203,334 and 1,292,483.
Patent GB-146072-A (GB)
Title: Improvements in the means of ventilating and protecting all foods (either liquid or solid) from flies, dust and rain, whether kept in or out of doors
IPC: A47B71/00
Filed: 1919-07-31
Abstract: 146,072. Marguet, J. C. C., and Harris, F. July 31, 1919. Meat safes.-A saie for meat &c. comprises a gauze base a<1> with strengthening-pieces b<1>, sides made in two parts k, l to provide a ventilating- aperture covered by gauze, and a cover having ventilating-passages h constructed as described in Specification 153,096.