baber/WOPTO huggingface dataset:
Patent GB-1210581-A (GB)
Title: Apparatus and method for the manufacture of a thermoplastic resin such as a polyester
IPC: B29C48/90
Filed: 1968-06-05
Abstract: 1,210,581. Extruding polyester resins. GOODYEAR TIRE & RUBBER CO. 5 June, 1968 [14 July, 1967], No. 26779/68. Heading B5A. [Also in Division B1] Polyester resin, which has been polymerized in a fluid heated reactor 10 e.g. at 575 F., is discharged by pressurized gas as a circular section stream from an orifice (46), Fig. 3 (not shown), of a slidable valve 12 either directly or, via an inclined stainless steel cross conveyer 104, on to a horizontal stainless steel conveyer 116 on which it is conveyed between the nip of a driven roll 118 and a non-driven roll 142 and rolled into a sheet 22. The valve (12), Fig. 3 (not shown), comprises a fluid heated plate (40) which is slidable by an air motor (58), between a position closing the outlet passage of the reactor 10, formed by a replaceable insert (38), and a position permitting discharge of the resin through a circular section plate opening (46) which is wider than the outlet passage and is outwardly tapered at the lower end thereof. In the closed position, the plate (40) is sealingly urged against a PTFE seal (66) by an adjustable bell crank (68) actuated by an air motor (74). The operation of the air motors (58, 74) is synchronized by a limit switch (82, 84) actuated solenoid system whereby the crank (68) is operable only in response to movement of the plate (40) into its closed position, and the plate (40) is movable out of its closed position only in response to disengagement of the crank (68) from the plate (40). The conveyers 16, 18 are cooled by water spray nozzles 112, 170, and the roll 118 by circulation of water, via the hollow shaft thereof. Adhesion of resin to the belts 104, 116 and roll 118 is prevented by directing a water spray e.g. from nozzles 110, located below the vortical apex of the surface travels thereof, to provide a surface film. Excess water on the surface of conveyer 18 is removed by an air blast directed from nozzles down on to the surface, against the run of the belt and in directions outwardly from the resin 14 thereon. The upper roll 118 is displaceable away from and towards the belt 116 by a pair of air motor operated lever systems e.g. 122, 136, the latter position being determinable against synchronously adjustable stops 141. Two pairs of conveyer assemblies 104 may simultaneously serve the conveyer 116.
Patent GB-518592-A (GB)
Title: Manufacture of dimorpholine compounds
IPC: C07D295/02
Filed: 1938-09-14
Abstract: 518,592. Dimorpholinylethane and derivatives. GEIGY AKT.-GES., J. R. Sept. 14, 1938, No. 26799. Convention date, June 10. [Classes 2 (iii) and 15 (ii)] Ethylenediamine is reacted with at least a two-fold molecular proportion of #:#<1>-dichlorethylether to give dimorpholinylethane. By means of alkylating and aralkylating agents the products may be converted into mono or di quaternary ammonium compounds. For this purpose dimethylsulphate, methylchloride, halogenketones, halogenhydrins, halogencarboxylic acids and esters, e.g., chloracetic acid octadecylester and benzylchloride may be used. The products have foaming and other surface active properties. In examples: (1) dimorpholinylethane, prepared from #:#<1>-dichlorethylether and ethylenediamine is converted into the monoquaternary ammonium compound by treating with chloracetic octadecylester and the ester of chloracetic acid' with coconut oil alcohols ; by treatment with dimethylsulphate a bisquarternary -compound is obtained ; (2) dimorpholnylethane is treated with dodecylbromide in toluene and then with dimethylsulphate. -
Patent GB-172160-A (GB)
Title: An improved extra air device for internal combustion-engined motor vehicles
IPC: F02D9/00
Filed: 1920-09-20
Abstract: 172,160. Wilmoth, J. V. Sept. 20, 1920. Actuating mechanism.-An extra-air valve on the induction pipe of an internal-combustion engine is opened to the normal extent by the weight of the driver's foot resting upon a control device when the foot is not used for de-clutching, and is opened to the full extent to admit air for braking by a greatly increased pressure of the foot. In one form, Figs. 3 and 9, the valve 26 slides in a casing 33 secured to the induction pipe and having rectangular openings 42 and slots 43. The valve is actuated by a plunger 1 slidable in a guide 10 secured by a flange 11 to the footboard of the car. The plunger is connected to a plug 37 in the valve casing 33 by the control-wire casing 19, and a pin 14 engaging in a slot 13 in the plunger is connected to the valve 26 by the control wire 16, secured in a conical recess 30 in the valve by a set screw 31. The plunger is controlled by a strong spring 24 between the flange 11 and a loose collar 21 and a weak spring 23 between the collar 21 and an adjustable head 4 on the plunger. The weight of the foot is sufficient to compress the spring 23 and open the valve slots 43, but considerable pressure is needed to compress the spring 24 and open the ports 42. In a modification, Fig. 5, the plunger is replaced by a lever 44 acted upon by a weak coil spring 57 and by a strong leaf spring 59 engaged by the stem 49 of an adjustable foot plate 50. In another form, a leaf spring bent back upon itself to engage the lever 44 serves the purposes' of the strong spring and the weak one.
Patent GB-1097303-A (GB)
Title: Improvements relating to electrical control devices for electrically driven vehicles
Inventor: EASTOP ROBERT HENRY
IPC: H01F29/12
Filed: 1963-07-08
Abstract: 1,097,303. Variable inductors. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. June 29, 1964 [July 8, 1963], No. 26903/63. Heading H1T. In an electrically driven vehicle carrying its own power supply source, in which the speed of a D.C. traction motor is controlled by a semiconductor rectifier circuit arrangement, the rectifier circuit arranged is controlled by an output voltage from an induction regulator, the mutual coupling between two coils of which is varied by movement of manually operable means to vary said output voltage and hence the motor speed. The coupling between a pair of coils 1, 3 (Figs. 1 and 2) is varied by moving a magnetic or electrically conductive screen 5 between them. In Fig. 2 the screen may be supplemented or replaced by movable magnetic shunts 7. Alternatively in Fig. 1, the screen 5 may be omitted, and the coupling varied by moving one coil relative to the other or by rotation of core 2 relative to core 4. Also in Fig. 2 the screen 5 may be omitted and the coil 3 moved relative to coil 1. In Fig. 3 arrangement (not shown) the centre limb of an E-shaped core may be moved through the two coils toward or away from an I-shaped core which together with the E-shaped core forms a magnetic circuit. Alternatively in Fig. 3 embodiment one coil may be fixed on the E-shaped core and the other coil and I-shaped core moved relatively thereto. In an embodiment (Fig. 4) the coils 1, 3 are connected in series to an A.C. source E and a voltage output CS is taken from coil 3. The output voltage depends upon the ratio of the impedances of the coils and the impedance of each is varied by moving a short-circuited coil or ring 55 along the core 24 and eddy currents induced in the coil or ring 55 produce a flux barrier. A further coil (not shown) may be connected in series with the coil 3 and arranged as a bucking coil to allow the output voltage CS to be reduced to zero. The bucking coil would be mounted on the core remote from the coil 3. Fig. 5 embodiment (not shown) is similar to that of Fig. 4 but the magnetic circuit is provided with an adjustable core element. In all embodiments the input voltage is applied at E (e.g. at 50 c.p.s.) and the output voltage is available as indicated at CS.
Patent GB-1269938-A (GB)
Title: Improvements in and relating to gas burners
Inventor: GREETHAM ERNEST
IPC: F23D14/26
Filed: 1968-06-06
Abstract: 1,269,938. Gas burners. QUADRANT ENG. CO.- Ltd. 4 June, 1969 [6 June, 1968], No. 26990/68. Heading F4T.  A gas burner especially suitable for natural gas includes an array of outlet passages which array comprises at least one passage e.g. 14 for the supply of a mixture of combustible gas and air to a main flame in use and further passages 18, 19, 22 for the supply of the mixture to a keeper flame or flames which will substantially surround the main flame in use, the keeper flame supply passages including at least one inner passage e.g. 19 and at least one outer passage e.g. 22 arranged at mutually different spacings outwardly from the main flame supply passage 14, at least one expansion chamber e.g. 20 situated upstream of and adjacent to the keeper flame passages 18, 19, 22 whereby the mixture supplied to the keeper flame(s) will always be at a substantially lower pressure than that supplied to the main flame, and flow restricting means 23 in the expansion chamber 20 arranged so to further reduce the pressure of the mixture supplied to the outer keeper flame passage 22 as compared with that supplied to the inner keeper flame passage 19. In Fig. 3, the keeper flame passages 18, 19, 22 are formed as coaxial rings in a head element 10 of a head 7 which is screwed into the outlet of the burner. The expansion chamber 20 is situated in the head element 10 and is formed as an annulus axially between a ring of inlet passages 16 and the rings of keeper flame passages 18, 19, 22, and includes flow restricting means in the form of wound metal gauze 23: downstream of the ring of inlet passages 16 are a series of spaced metal gauze discs 12 to smooth the flow of the mixture. The outermost ring of passages 22 is defined in use by grooves in the element 10 and an adjacent wall of the burner when the head 7 is mounted therein. The invention is also suitable for burner having a main flame which is broad and flat and wherein keeper flame supply passages are formed on each elongated side of the main flame supply passage.
Patent GB-1536433-A (GB)
Title: Closable cuvet
IPC: G01J3/00
Filed: 1976-06-29
Abstract: 1536433 Opening containers COMPURWERK GmbH & CO 29 June 1976 [4 July 1975] 27010/76 Heading B8D [Also in Division G2]  A cuvette is sealed by a cover which cannot be removed. As shown (Fig. 1) the cuvette is first filled with a reagent and the cover is then applied and sealed (e.g. by ultrasonic welding). The cover is provided with a rim 14r and is opaque, the rim serving as both a support and as an optical obturator when the cuvette is inserted into an appropriately sized and shaped aperture in a spectrophotometer. The end closure has a tear-off portion defined by a groove 14b, and a projection 14c is provided to assist in its removal. In use the tear off portion is removed, a sample is introduced into the reagent, and an adhesive strip 16 is used to recover the aperture. The cuvette may be of transparent plastics, and the closures may be colour coded.
Patent GB-464255-A (GB)
Title: Improvements in or relating to heating clips for use in the permanent waving of hair
IPC: A45D4/12
Filed: 1936-10-05
Abstract: 464,255. Electric hair - waving. STROHER AKT.-GES., F. Oct. 5, 1936, Nos. 27013 and 27014. Convention dates, Jan. 6 and Aug. 8. [Class 39 (iii)] A heating - clip for hairwaving consists of two members a and b each produced in one piece of ceramic material and having longitudinal or transverse recesses e<1>, or longitudinal perforations, in which electrical heating resistances h<1> are inserted. The electrical connections are effected by means of plug pins or a connecting lead provided in the gripping members d.
Patent GB-1437147-A (GB)
Title: Copolymers of tetrafluoroethylene and propylene
IPC: C08F2/22
Filed: 1974-06-18
Abstract: 1437147 Tetrafluoroethylene-propylene copolymers THIOKOL CORP 18 June 1974 27035/74 Heading C3P A thermoplastic, elastomeric copolymer of tetrafluroethylene and propylene has a substantially uniform composition and a molar ratio of tetrafluoroethylene units to propolyene units of 1À0 : 0À11 to 1À0 : 0À54. It may be prepared by adding to an inert liquid medium a mixture of tetrafluoroethylene and propylene in a molar ratio of 1À0 : 0À01 to 1À0 : 0À087, adding an initiator to the resulting mixture and thereafter continually feeding in a mixture of tetrafluoroethylene and propylene having a molar ratio of tetrafluoroethylene units to propylene units within the range 1À0 : 0À11 to 1À0 : 0À54 and substantially equal to that of the copolymer initially formed at a rate which will maintain the pressure of the monomers within the reactor substantially constant whilst maintaining the reaction mixture at a temperature of 5‹ to 120‹ C. and a pressure of 100 to 1,000 p.s.i.g. Examples are given in which the emulsifier is ammonium perfluoro-n-octanoate and sheets produced from the copolymer are exposed to gamma radiation.
Patent GB-390428-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/20
Filed: 1932-09-29
Abstract: 390,428. Photographic cameras combined with telemeters. LEITZ GES., E., Optical Works, Wetzlar, Germany. Sept. 29, 1932, No. 27091. Convention date, March 15. [Class 98 (i).] In a camera having an objective, more especially a long-focus objective, in a focusing mount interconnected with a telemeter for determining the distance of the object, the objec tive mount comprises a tubular casing secured to the camera, an objec tive holder adjustably mounted for focusing on the outer end of the casing, and a connecting member which extends through the casing and engages at one end with the objective holder and at the other with the telemeter interconnecting-mechanism. As shown, the mount comprises a casing A which is secured at A<1> to the camera (not shown), and has an internal steep thread B engaging a tube C which carries the objective D and an outer sheath E bearing a focusing scale. Secured to the tube C is a member F having a flat or curved surface F2 engaging a roller G<1> on a member G of narrow strip form, connected at A<2>, A<3> pin-and-slot fashion to the casing A so as to be slidable longitudinally therein, and urged towards the member F by a spring H. The strip G lies outside the path of the rays forming the image, and its end G<4> actuates the telemeter interconnecting- mechanism (not shown) when the objective is adjusted for focusing. A modification is suggested in which the member G is mounted so as to rotate with the tube C and carries a cam member analogous to the member F. Specification 379,954 is referred to.
Patent GB-362943-A (GB)
Title: Improvements in or relating to electric telegraphs
IPC: H04L13/14
Filed: 1930-09-11
Abstract: 362,943. Multiplex telegraphy. STANDARD TELEPHONES & CABLES, Ltd., WEBB, L. H., and BOSS, S. H., Columbia House, Aldwych, London. Sept. 11, 1930, No. 27129. [Classes 40 (iii) and 40 (v).] In a system of multiplex telegraphy, a distributer comprises a cathode beam rotated over contacts arranged in groups each of which represents a channel of the system. The cathode beam ES is rotated over segments of which 1 .. 5 (shown) forming a group belong to a single channel and which are individually connected to earth E or to the grid circuit of a valve V according to the positions of tongues F set in accordance with the code elements to be transmitted by a keyboard or perforated tape. When the beam ES impinges on a segment connected to the grid circuit of the valve V current flows through a resistance R and effects a reduction in the plate current of the valve and in the drop of potential in a resistance across the terminals L1, L2 of the outgoing line. The battery B may have a potential adjusted in relation to the high and low values of the potential at X to give single current or double current working. At the receiving end the synchronously rotated beam ES traverses segments S1, S2,.. S5 .. and the potential at a point A is raised for the successive valves so that if a zero (single-current working) or negative (double-current working) signal is received corresponding to the segment engaged by the beam, the potential difference between the plates operates the corresponding Neon lamp N1, N2 ... Current is maintained in the Neon lamp circuit to operate a relay Z corresponding to a printer-magnet of the channel. On the operation of the magnets to print a letter, a contact K in the circuits of the Neon tubes is operated by the printing mechanism to clear and restore the channel for the reception of the next group of code elements. The conditions necessary for the operation and maintenance of operation of the Neon tubes in the system are discussed mathematically in the Specification.
Patent GB-866025-A (GB)
Title: Improvements in gas lighters
IPC: F23Q2/173
Filed: 1959-08-07
Abstract: 866,025. Gas burners. MAYER, E., [trading as AUGUSTAZUNDER FEUERZENGFABRIK MAYER & CO.]. Aug. 7, 1959 [Aug. 8, 1958], No. 27129/59. Class 75(1). A gas lighter having a valve housing 2 inserted into a fuel container 1, an adjusting ring 10 which can be screwed into the housing; a throttle disc 8 composed of porous material and the presence of which is adjustable by means of the adjusting ring, and a burner nozzle 16 provided at is lower end with valve sealing means 15 and mounted so as to be axially slidable in the adjusting ring is characterised by a hollow cyclinder 6 which projects upwardly from the base of the housing and in the upper end of which is arranged at least one throttle disc; a hollow cylindrical extension 11 provided on the adjusting ring, which extension has the same external diameter as the hollow cylinder and is adapted to press against the throttle disc by means of the bottom external surface 12 of its lower part, this lower end part being formed with an axial bore 13 and having a valve seating 14 formed on its upper internal surface; and a sealing valve 21 which surrounds the hollow cylinder and the hollow cylindrical extension. An annular cap 19 engages over the upper end of the adjusting ring and over a shoulder on the burner nozzle to limit the upward movement of the nozzle under the action of a spring 17. Two throttle discs 8 are provided separated by a disc 7 of metal or synthetic plastic material.
Patent GB-297473-A (GB)
Title: Improvements in or relating to apparatus for indicating electrical short-circuits
IPC: H01F27/40
Filed: 1928-09-21
Abstract: 297,473. Ganz-fele Villamossßgi RÚszvÚny-Tßrsasßg. Sept. 22, 1927, [Convention date]. Indicators and alarms, applications of; protective or safety devices, auxiliary.-For indicating short-circuits in the windings d of a transformer, motor, or generator, coils a<1>, a<2> spaced apart on the core are connected in opposition in a circuit containing an indicator c, an alarm, or a relay adapted to operate a cut-out device so that in the event of unbalance arising due to a shortcircuit within the main windings causing leakage flux as indicated in full lines, an indication is given, or the apparatus disconnected. In order that the device may respond to a fault occurring exactly in the middle t of the winding, two pairs of coils a<1>, a<2>, b<1>, b<2>, the centres of which do not coincide, are employed. One pair of coils may be slidably arranged on the core in order that the position of the fault may be ascertained by sliding the coils to the null position. The coils, instead of embracing the core, may be arranged in the path of the leakage flux at the side of the core. Reference has been directed by the Comptroller to Specification 173125, [Class 38 (v), Electric switches &c.].
Patent GB-344840-A (GB)
Title: A process for the production of acid-proof alloys
IPC: C22C38/14
Filed: 1929-09-06
Abstract: The introduction of titanium into acidproof iron-silicon alloys is effected by the use of titanium alloys of low titanium content. Alloys containing 10-40 per cent silicon, 0,01-25 per cent titanium, and 0,01-5 per cent aluminium, together with small amounts of other metals which oxidize more easily than titanium may be used.
Patent GB-533064-A (GB)
Title: Improvements in or connected with umbrellas or the like
IPC: A45B3/04
Filed: 1939-10-05
Abstract: 533,064. Umbrellas. HOARE, R. R. Oct. 5, 1939, No. 27232. [Class 134] An electric torch is clipped to an umbrella near the handle and is arranged in such a way that when the umbrella is closed and held downwards a screen or baffle surrounding the torch confines the light to the ground near the end of the umbrella, but when the umbrella is opened and raised the light is intercepted by it and reflected on to the ground. For this purpose the inside of the umbrella may be white or reflecting. The screen on the torch may be cylindrical and blackened inside.
Patent GB-897787-A (GB)
Title: Improvements in and relating to fastener devices for mounting in an apertured support
Inventor: PARKIN LESLIE
IPC: F16B37/04
Filed: 1959-08-10
Abstract: 897,787. Stud and socket fastenings; anchornuts. CARR FASTENER CO. Ltd. Aug. 5, 1960 [Aug. 10, 1959], No. 27316/59. Classes 44 and 89(1). A sheet metal fastening device for mounting in an aperture in a support comprises a base 1 having an aperture 2 for receiving a stud or screw, a flange 5 extending substantially normally from two opposite side edges of the base, a wing 3 extending outwardly of each flange in spaced parallel relation to the base and connected to the respective flanges by a narrow web-like extension 4 of said flanges, each wing being formed with an L-shaped slot so as to provide a longitudinally extending rigid inner wing portion connected to the web and a longitudinally extending resilient outer wing portion spaced from the web, the base of the fastener being insertable into an elongated-slot in the support so as to be positioned lengthwise thereof and to be rotated to extend across the width of the slot such that the fastener will be secured by the longitudinal free edges of the flanges abutting the rear face of the support and the wings abutting the front face thereof.
Patent GB-645814-A (GB)
Title: Improvements relating to pinchcocks or burette clips
IPC: B01L3/00
Filed: 1948-10-21
Abstract: 645,814. Spring clips. UNIVERSAL WOODWORKING CO., Ltd., and WESTWOOD, C. Oct. 21, 1948. No. 27337. [Class 44] [Also in Group XXII] A pinchcock or burette clip is bent up from metal strip 1 having a rectangular slot 4 expanded outwards to allow one arm of full width to pass through the other. Thumb-discs 8 are finally secured by headings over lugs 2 on each end of the strip.
Patent GB-1388393-A (GB)
Title: Method of constructing mandrels or cores
IPC: B65H75/50
Filed: 1971-06-11
Abstract: 1388393 Beds and frames; lathes WAVIN PLASTICS Ltd 8 Sept 1972 [11 June 1971] 27057/71 Headings B3B and B3T [Also in Division F2] Apparatus for machining the ends of a plastics (e.g. polypropylene) tube 12 to form a roll or mandrel (see Division F2) comprises two clamps 3, 4 (e.g. operated manually, hydraulically or pneumatically) for the tube whose axial spacing is adjustable and which is slidable axially (e.g. under mandrel control) along a pair of slide bars 2, into and out of the operating range of tools 15 (16, 17) Fig. 2 (not shown) each with a separate motor 18 mounted in a head 13 movable (e.g. manually, hydraulically or pneumatically) normal to Fig. 1 to align the different tools with the tube. The first tool may counterbore the tube end and when fully inserted, extend two cutters to form annular grooves in the counterbore. The second tool may form a notch in the tube end, and the third tool may chamfer the notch. After machining one tube end 12a a flanged bush with an external key to engage the notch, and an internal keyway, may be inserted and the tube reversed. To axially locate the tube 12 in the clamps 3, 4, there may be a tailstock 8 pivoted to the clamp with a first part 9 to engage a plain tube end when the first end 12a is machined, and a keyed 24 spigot 23 to engage the inserted bush when the second tube end 12b is machined. The apparatus may also have a circular saw 22 for cutting into lengths a continuous tube, fed through an aperture (21) in the head 13.