baber/WOPTO huggingface dataset:
Patent GB-702410-A (GB)
Title: Control means for liquid-operated servo-mechanisms
Inventor: HARRIS THOMAS ALFRED
Filed: 1951-07-30
Abstract: 702,410. Gas turbine plant. LUCAS (INDUSTRIES), Ltd., J. July 18, 1952 [July 30, 1951], No. 17966/51. Class 110 (3). [Also in Group XXIX] The fuel supply to a gas turbine or jet engine is controlled by a device comprising a pair of aligned passages a with a gap between their adjacent ends for conveying motive liquid to a liquid-operated servomotor and one or more nozzles e adapted to direct a jet or jets of control liquid across the gap and so divert the supply of motive liquid to the servomotor, the flow of liquid to the nozzle or to each nozzle being controlled by a valve responsive to a variable condition. As shown the servo-piston r varies the obliquity of the swash plate o of an enginedriven fuel pump d supplying burners k. The piston r is spring-loaded one side being supplied with liquid directly from the pump delivery conduit p and the other side being supplied via the aligned passages a. These are arranged in a chamber b with an outlet pipe 2 to the pump inlet c. The chamber b also has two opposed nozzles e. The left hand nozzle e is supplied through pipes 3, 5 under the control of a valve f operated by a piston w exposed on its under side to a pressure related to the speed of the pump, such pressure being generated in the pump casing by a radial passage v in the pump rotor m. The right hand nozzle e is supplied through a pipe 6 controlled by a spring loaded valve g which is opened by an electromagnet h controlled through an amplifier j energized by one or more thermo-couples ilocated in the combustion chambers of the engine. The motive liquid and the control liquid may be derived from a source other than the fuel pump. Alternatively the servo piston may operate a byepass valve used in conjunction with a constant output pump, or a throttle in the fuel supply line. According to the Provisional Specification the electromagnet h may be controlled by a thermostatic switch responsive to the temperature in the combustion chamber. Also one of the valves controlling a nozzle may be responsive to the pressure in the liquid fuel supply system.
Patent GB-460416-A (GB)
Title: Improvements in and relating to gear cutting machines
IPC: B23F5/14
Filed: 1936-06-29
Abstract: 460,416. Gear-cutting. FORSTER, W. June 29, 1936, No. 18031. Convention date, July 1, 1935. [Class 83 (iii)] A gear-cutting machine of the type in which a reciprocating rack tool 3 is rolled with the blank 4 to finish one or more teeth and then the blank and tool are returned and relatively fed by the same number of teeth before the next roll, has means for reducing the speed of the approach feed movement slowly to zero during the last part of the movement to avoid overrunning of one of the rolling members. In one form, applied to a machine similar to that described in Specification 109,256, [Class 83 (iii)], the tool is reciprocated by a vertical ram and the blank 4 is mounted on a table 5 carried by a slide 6 and is rolled past the tool by a combined tangential movement, imparted by a screwed shaft 10, and a corresponding rotational movement, imparted by worm gearing 8 driven from the shaft 10 through gearing 13. The shaft 10 is driven from a countershaft 16, which during the working roll is driven from a shaft 17 through gear 18, loose wheel 19, clutch 20 and sleeve 22 splined on shaft 16, to impart slow rolling movement during the idle strokes of the ram. A shaft 25, constantly driven from a pulley S, drives a loose reversing wheel 23 having clutch teeth coacting with the sleeve 22. The shaft 25 also drives a shaft 28 carrying a splined clutch sleeve 29 coacting with clutch teeth on a loose wheel 31 engaging the wheel 19. The sleeve 29 carries a cam member 34 coacting with lugs 33 on a disc secured to the wheel 19. At the end of a working roll the tool ram is stopped in its upper position (thus also stopping the shaft 17), and clutch 21 engaged, thus disengaging clutch 20 and reversing the shaft 10 .The clutch 12 is also disengaged to interrupt the table rotation and index the blank. After the required return feed movement of the slide 6 the clutches 20 and 12 are re-engaged. The rolling movement in the working direction now commences and is derived from the shaft 28, through clutch 30 which is in position III, Fig. 2, and gears 31, 19 the normal rolling feed shaft 17 being still stationary. This part of the forward roll serves to take up backlash before the tool movement commences. After the clutch 30 has made about one quarter revolution it is disengaged by movement to position II. At this point one of the lugs 33 has engaged the cam 34 and the slow rise of the cam serves during the next quarter revolution to impart a movement to the shaft 10 which gradually diminishes to zero at the end of the approach roll. The lever 35 is then moved to position I wherein the cam disc 34 clears the lug and the tool ram and feed shaft 17 are restarted. The number of teeth on the clutch 30 corresponds to the number of vanes on the cam 34 so that one of the lugs is located between the vanes when the clutch is engaged. The levers 26, 35, 36 are automatically operated by a main control drum similar to that de. scribed in Specification 109,256.
Patent GB-1275346-A (GB)
Title: Bonded-fibre sheets
IPC: D04H1/64
Filed: 1970-04-16
Abstract: 1275346 Papermaking B F GOODRICH CO 16 April 1970 [17 April 1969] 18092/70 Headings D2A and D2B In a process for making bonded-fibre sheets, an aqueous polymer latex containing a thickening agent is mixed with a coagulant for the latex and then mixed with fibres and the resulting slurry sheeted out. The thickening agent amounts to at least 4% based on the solids content of the latex, and it and the coagulant are so chosen that the thickening agent is largely flocculated when the latex is coagulated. In a continuous process, separate streams of coagulant and of latex containing thickening agent are continuously fed to a coagulating tank, from which the resulting coagulate suspension is discharged to 'be mixed with a fibrous slurry and the resulting mixture fed directly to a sheet-forming machine. The latex may be of styrene-butadiene copolymer, a homo- or co-polymer of an acrylate, acrylonitrile or vinyl chloride, or such a copolymer modified with reactive groups (e.g. hydroxyl or carboxyl). The thickening agent may be a polyacrylate or carboxymethylcellulose. The coagulant may be aluminium sulphate. In the Example, the fibres are of rayon.
Patent GB-779308-A (GB)
Title: Improvements in and relating to the projection of mosaic pictures
IPC: G03B21/20
Filed: 1955-06-22
Abstract: 779,308. Optical projection apparatus. VITARAMA CORPORATION. June 22, 1955 [July 21, 1954], No. 18122/55. Class 97(1) [Also in Group XL(b)] Apparatus comprising at least two projectors for projecting separate images so that they meet or overlap on a screen, includes means for maintaining the amount of light in the marginal portions of each light beam and responding to a change in said amount of light so as automatically to vary the amount of light means passing from the light source of at least one projector to the marginal portions of the image projected thereby so as to obtain a predetermined illumination intensity in the adjacent or overlapping portions of the separate images. The apparatus shown comprises projectors 9, 10 and 11 which form overlapping images on a screen 12 and include pairs of photo-cells 13, 19; 21, 22; and 24, 25 on to which light passing to the opposite sides of the respective film gates is reflected. Each photo-cell is connected through an amplifier 41 and one end of a differential relay 42 to servomotors 27, 28; 31. 32; and 34, 35. The other end of each relay 42 is connected to a reference signal source such as a signal generator 45. These servomotors serve to operate reflectors in each projection so as to vary the amount of light passing through one or other or both sides of the film gate or the associated projector when the light received by the respective cell differs from the reference intensity as determined by the signal from generator 45 Thus, in Fig. 4, the servomotors 27, 28 associated with the cells 18, 19 of one projector 9 serve to move axially two spheroidal reflectors 103, 104 which combine with a main reflector 98 and parabolic side reflectors 111, 112 to project light from a carbon arc 96 on to the film in gate 102. Alternatively, the motors may move angularly two pivoted reflectors as in Fig. 5 (not shown). The light may be reflected on to the photo-cells by reflectors disposed at opposite sides of the film gate or by reflecting strips or discs on the shutter of the projector as in Fig. 6 (not shown). In another form, Fig. 2 (not shown) the signal determining the reference intensity is provided by the output of the cells associated with reflector 10.
Patent GB-169305-A (GB)
Title: Improvements in apparatus for the reception of electromagnetic waves
IPC: H04B1/06
Filed: 1920-07-02
Abstract: 169,305. Parsons, I. H., and Ball, A. E. J. July 2, 1920. Receiving-sets, construction of; thermionic amplifiers and detectors.-In order to prevent accidental self-oscillation of the component parts of a wireless receiving set fitted with the usual aerial and earth terminals, the tuning inductance is made in tubular form, inside which are placed the thermionic valve or valves, together with such parts as transformers, condensers, &c., the transformers being preferably arranged with their lines of force at right-angles to the lines of force due to the inductance. Figs. 1 and 2 show the invention applied in a portable set. The tuning- inductance T of substantially equal length and diameter is disposed vertically in a box, and with. in it are placed an amplifying-valve D, a detecting-valve D1 provided with a grid-leak resistance E, and a condenser E1, and a radio-frequency transformer C. A reaction-coil F adjustable by rotating by means of the handle F2 or by movement relative to the coil T, may be included for the purpose of amplifying the signals or of causing the valve to self-heterodyne. Tuning may be effected by taking tappings from the coil T to the multiple-stud switch B, and between the studs by a variable condenser G. A partitioned space H may be provided to contain the telephone receivers and may have contacts P, P1, respectively connected to aerial and earth, and. which are short-circuited when the lid is closed to prevent damage due to lightning. The high-tension and low-tension batteries may be connected with one common lead through a three-way plug inserted in the jack K. A window L of ruby or glass may be provided in the lid. The inductance T may be replaced by two tubular windings, one slidable in the other, and an audio-frequency transformer may be used in place of the transformer C.
Patent GB-884924-A (GB)
Title: An improved heat exchanger
IPC: F28F9/14
Filed: 1960-05-24
Abstract: 884,924. Tube joints. LUMMUS NEDERLAND N. V. May, 24, 1960 [May 26, 1959], No. 18244/60. Class 99(1). In a heat-exchanger comprising two tube plates 3 interconnected by a number of tubes 1, each tube is slidably mounted at both ends in a sleeve 4 slidably mounted in a hole in the associat - ed tube plate, a seal being provided between the tube and the sleeve, and the sleeve and the tube plate. As shown, the sleeve is formed with grooves for O-rings 5, 8 and has a flange 6 for abutment with the tube plate ; between the latter and the flange a blocking device may be disposed so as to prevent excessive displacement of the sleeve and towards the tube plate. The tubes may be connected at the middle thereof to a fixed support.
Patent GB-474533-A (GB)
Title: Improvements relating to electrical inductances
IPC: H01F17/04
Filed: 1936-07-01
Abstract: 474,533. Inductances. STEATIT-MAGNESIA AKT.-GES. July 1, 1936, No. 18294. Convention date, July 2, 1935. [Class 38 (ii)] An inductance coil for highfrequency circuits comprises an insulating member b of substantially cubical form carrying the winding between flanges formed thereon, and core parts of finely divided magnetic material which are relatively adjustable. In one form, Fig. 3, the core comprises a T-shaped member e which is adjustable by means of a screw f with respect to a straight member d. In another form the part e is E-shaped with the winding surrounding the centre limb. In the form shown in Fig. 6, the core is reel-shaped with one end flange h eccentrically mounted in the end of the insulating member b so that by rotating the flange h it may be made more or less coaxial with the part i. In other forms using reel-shaped cores, the part i is arranged to screw into the insulating member or into an internally threaded bush therein so as to be axially adjustable with respect to a fixed flange at the other end. Fig. 10 shows a further form in which a core comprising parts m, n has an adjusting pin o screwing therein. In a further arrangement, one part of a reel-shaped core has an adjusting screw extending from one end and engaging a bridge piece spanning the end of the insulating member b. Fig. 13 shows a form in which the under face of the flange i<4> is inclined to cooperate with an inclined surface t on the insulating member so that by rotation of the main core part it is withdrawn from the flange l. In another form a radially extending pin in the main body of the core co-operates with a helical groove in the insulating member to provide adjustment between the core parts. Reference has been directed by the Comptroller to Specification 401,899, [Group XXXVI].
Patent GB-293002-A (GB)
Title: Improvements in mechanical power transmission chains
IPC: F16G13/06
Filed: 1928-06-25
Abstract: 293,002. TrÚmoliÞres, G. H. June 29, 1927, [Convention date]. Driving and like chains with separate joint pins.-Link plates are folded double at their ends as shown in Figs. 5 and 7 and are then hooked together, as shown in Fig. 9, and pivotally connected by pins. Fig. 9 shows two such chains held in parallel relation by pins carrying rollers 7. Chains may be formed from link blanks of the shape shown in Fig. 1 by folding the blank double on the line ab and folding the ends 2 outwards for the inner links and inwards for the outer links. The chains may be secured to driving-belts 9, Fig. 10, by arched members 8 riveted to the belt. 'The links may be faced with leather or like material.
Patent GB-1007586-A (GB)
Title: Process for printing, impregnating or padding fibre substrates
IPC: D06M15/29
Filed: 1963-05-09
Abstract: A composition comprises an aqueous dispersion of a polymer of an O-acylated N-methylol compound of an a ,b -unsaturated carboxylic acid amide.  The amide preferably has the formula:- <FORM:1007586/C3/1> wherein R1 denotes a hydrogen or halogen atom or an alkyl radical, and R2 denotes an alkyl, cyclo yl, aralkyl, aryl or heterocyclic radical.  The polymers preferably contain 0.2 to 50% of polymerized amide and are self cross-linking.  Many amides are exemplified, copolymerized with styrene, butyl acrylate, acrylamide, methyl acrylate, acrylic acid, acrylonitrile, ethyl acrylate, ethyl methacrylate, butyl methacrylate and butadiene. The compositions may also contain pigments and dyes such as titanium dioxide, carbon black and organic colorants; thickeners such as sodium alginate, hydroxy ethyl cellulose, sodium carboxymethyl cellulose, tragacanth, and locust bean flour; organic liquids such as benzine; surface active agents; and additional cross-linking agents such as pentamethyl pentamethylol-melamine and urea/formaldehyde condensate.  Reference has been directed by the Comptroller to Specification 973,943.ALSO:Textiles are printed, padded and impregnated by a solution or dispersion of self-cross-linking polymerisates or co-polymerisates wherein these polymerisates or copolymerisates contain polymerized O-acylated N-methylol compounds of a ,b -unsaturated carboxylic acid amides.  The amide compound preferably has the formula: <FORM:1007586/D1-D2/1> wherein R1 denotes a hydrogen or halogen atom or an alkyl radical, and R2 denotes an alkyl, cycloalkyl, aralkyl aryl or heterocyclic radical.  Many polymers copolymers are exemplified.  The printing compositions may also contain pigments, dispersed dyes, thickeners, organic liquids (e.g. benzine), surface active agents-both ionic and non-ionic, and additional cross-linking agents such as melamine and urea formaldehyde condensates.  Textiles treated are cotton, staple fibre, polyamide or cellulose acetate materials.  The cross-linked compositions are fast to detergents, solvents and handling. Reference has been directed by the Comptroller to Specification 973,943.
Patent GB-809004-A (GB)
Title: Rock drill cutting insert
IPC: E21B10/58
Filed: 1955-06-24
Abstract: 809,004. Percussive drills. SANDVIKENS JERNVERKS A.B. June 24, 1955 [June 28, 1954], No. 18405/55. Drawings to Specification. Class 124. A hard metal rock drill cutting insert has a cutting edge and a substantially plane bottom surface and at least two layers wherein the mean grain size of the particles increases from layer to layer by at least 0À25Á in the direction from the cutting edge to the bottom and the boundaries between the layers as seen in a section containing such boundaries and perpendicular to the longitudinal axis and the bottom are substantially straight and parallel to the bottom surface. The boundary between fine grained and coarse grained layers may be parallel to the bottom or be upwardly convex and the grain size at the cutting edge may be between 1Á and 7u-(0À5 x % bending metal)Á while the grain size in the next adjacent layer may be between 6À5Á -(0À5 x % bondiug metal)Á and 5Á. The layers may merge into one another and the fine grained part may be divided into two or more zones along the length of the insert with coarse grained material between them. The fine and coarse grained material may have the same chemical analysis or the fine grained material may have more bonding metal than the coarse grained.
Patent GB-284144-A (GB)
Title: Improvements in and relating to means for securing rails to metal sleepers
IPC: E01B9/24
Filed: 1927-07-11
Abstract: 284,144. Soc. Anon. d'OugrÚe-Marihaye. June 15, 1927, [Convention date]. Sleepers, securing rails to. - U-shaped clips 4, which engage keys 4k to secure flange rails 3 to sleepers 2 and have a rear projection 4f bearing on the sleepers, are provided with . stems having backs 4<b> of cylindrical profile engaging similarly shaped surfaces of slots 2b in the sleeper. Both surfaces are struck from the same radius, but the width of the slots 2<b> is enlarged to allow a slight angular movement of the clips about a vertical axis. The stems of opposite clips are of different thickness so that the gauge can be adjusted by transposing the clips.
Patent GB-901103-A (GB)
Title: Process for the production of a therapeutically useful sulphonamide
Inventor: FUSCO RAFFAELLO
IPC: C07D231/06
Filed: 1959-05-29
Abstract: The missing text comprises compounds of the formula <FORM:0901103/IV (b)/1> wherein X is a nitro or acylamino group, such as acetylamino, the process for preparing these compounds by condensing 1-phenyl-5-amino- 2,3-dihydropyrazole with a benzenesulphonyl halide X.C6H4.SO2 halogen, in an aqueous medium, at a pH of not less than 11, and also the preparation of 1-phenyl-5-p-aminobenzene sulphonamido-pyrazole by oxidising the above dihydro-pyrazoles with bromine or with hydro gen peroxide in acetic or formic acid in the presence of iodine or an iodide and converting X into an amino group, e.g. by hydrolysis in the case where X is an acylamino group, or by reduction, preferably by catalytic hydro genation, when X is a nitro group. 1 - Phenyl - 5 - amino-2,3-dihydropyrazole is made by treating b -cyanoethyl phenylhydrazine with a mineral acid such as aqueous hydro chloric acid.  Specifications 865,708 and 865,709 are referred to.
Patent GB-668410-A (GB)
Title: Improvements in or relating to apparatus for use in the germination of seeds
IPC: A01C1/02
Filed: 1949-07-13
Abstract: 668,410. Seed germinating-trays. GILES, T. F., and ALADDIN INDUSTRIES, Ltd. July 4, 1950. [July 13, 1949] No. 18520/49. Class 6(ii). A seed germinating-tray is formed with inclined sides and the central part 5 of the base perforated and removable, and is mounted on a water-heater. A distance piece provided with temperature-regulating air-admission openings may be interposed. The tray, water-container and distance piece may rest on a frame fitted with the fuel tank of an oil-burner. The watercontainer floor may be ridged and inclined..
Patent GB-121593-A (GB)
Title: Improved Manufacture of a Covering Plate for Wainscoating, Walls, and the like.
Inventor: THORVALD HANSEN
IPC: E04C2/16
Filed: 1918-11-13
Abstract: 121,593. Hansen, T. Dec. 19, 1917, [Convention date] Void [Published under Sect. 91 of the Act]. Non-conducting coverings for heat and sound. -A panel or plate for wainscotting or for covering walls, heat conduits, &c. consists of a layer a of peat glued to cardboard b, the whole being finally compressed. The plates are sound and heat insulators and may be applied to wooden or brick walls.
Patent GB-1437567-A (GB)
Title: Valve actuating mechanism in an internal combustion engine
IPC: F01L1/18
Filed: 1974-04-29
Abstract: 1437567 Cam follower adjusters FORD MOTOR CO Ltd 29 April 1974 [2 May 1973] 18584/74 Heading F2K [Also in Division F1] In an I.C. engine, valve clearance is adjusted by inserting a feeler gauge between the cam 13 and the rocker arm 61 and then slackening off a nut 41 to unclamp the rocker arm fulcrum pillar 35, which then rises under the action of a spring 37 to take up excess valve clearance. The nut 41 is then re-tightened to re-clamp the pillar 35. The nut 41 has a conical surface 47 which co-operates with the conical surfaces 51 of a split collet 49 to provide the clamping effect. A further conical surface may be provided at the lower end of the nut to co-operate with corresponding conical surfaces on the collet. A spring clip 65 engaging the rocker arm 6 1 and a groove 57 on the pillar 35 holds the rocker arm and pillar together at their spherical bearing surfaces 63, 55.
Patent GB-1168228-A (GB)
Title: New Heterocyclic Compounds and Methods for their Production
Inventor: LOCKHART IAN MOYLE
IPC: C07D311/58
Filed: 1968-04-19
Abstract: 1,168,228. 2 - Methyl - 3 - chromanamine. PARKE, DAVIS & CO. 19 April, 1968, No. 18593/68. Heading C2C. The invention comprises the isomer of 2- methyl-3-chromanamine (designated " α "), the HCl salt of which has m.p. 260-1 degrees, and acid-addition salts thereof. This compound is made by reducing, with an alkali metal hydride (e.g. LiAlH 4  or LiBH 4 ), 2-methyl-3-nitro-2H-lbenzopyran (I) or 2-methyl-3.nitrochroman (II). II is prepared by reduction of I with NaBH 4 .
Patent GB-204428-A (GB)
Title: Improvements in drilling machines
IPC: B23B47/18
Filed: 1922-07-06
Abstract: 204,428. Smith & Coventry, Ltd., and Wright, I. H. July 6, 1922. Drilling; backlash, preventing. - Drilling- machines of the type in which feed is imparted to a balanced spindle through a surrounding sleeve having a rack in engagement with a pinion, have a second pinion engaging the rack and connected to a balancing or balancing and returning spring or weight. The pinions d, e are coaxial and engage the rack sleeve b, the former being operated by a handle and clutch or by a treadle and lever j, while the latter is secured to a sleeve loose on its shaft and connected to a flat coil or volute spring which is given an initial torque to effect a balance. A weight, acting through a chain or otherwise, may be employed instead of the spring.