baber/WOPTO huggingface dataset:
Patent GB-1282189-A (GB)
Title: Load independent thermo-magnetic flasher
Inventor: SIIBERG HEMMING G
IPC: H01H61/06
Filed: 1970-09-16
Abstract: 1282189 Thermal switches WAGNER ELECTRIC CORP 16 Sept 1970 [27 Oct 1969] 44189/70 Heading H1N A flasher switch of the hot wire type with contact held closed by an electromagnet while the wire 20 cools has auxiliary contacts 34, 36, 44, 46 to interrupt the load current to avoid sparking at the main contacts 28, 30. When on/off switch S is closed a small current flows from battery B through an armature 12, the wire 20, a resistor 26 a coil 48 of the electromagnet 52 to the load L. This current is insufficient to energize the load or the electromagnet but heats the wire 20 so that it expands causing contacts 34, 36 to close and then contacts 28, 30 which short out the hot wire 20 and resistor 26. The increased current energizes the load L and causes the electromagnet to attract the armature 12 and another armature 38 which closes contacts 44, 46 in series with 34, 36 across the main contacts 28, 30. When the wire 20 has sufficiently cooled to draw the armature 12 away from the electromagnet contacts 28, 30 separate first, arclessly, then contacts 34, 36 open to interrupt the load current. The electromagnet finally releases contacts 44, 46. The cycle then repeats.
Patent GB-1131001-A (GB)
Title: Self-retracting reeling device for safety belts
Inventor: WOHLERT GUNTER
IPC: B60R22/353
Filed: 1966-10-04
Abstract: 1,131,001. One-way detents. SIGMATEX A.G. 4 Oct., 1966 [9 Oct., 1965], No. 44277/66. Heading F2E. [Also in Divisions A3 and E2] A reel 4, 5 (Fig. 2, not shown) retractable by means of a spring 8 is journalled in walls 2, 3 of a housing 1 and has fixedly mounted thereon adjacent the walls 2, 3 toothed wheels 10 and 11 respectively. Spring pressed at 14 against the wheel 11 to move with it is a disc 13 rotatable about the shaft 4. A pawl 17 is urged by a spring 19 into engagement with the disc. The pawl is one limb of a U-shaped member 16 pivoted on a fixed axle 18, the other limb constituting a similar pawl 15 associated with the other toothed wheel 10. Rotation of the disc 13 is limited by means of a cam 28 engaged in a window 29 in the wall 3. A belt guide plate 22 supported by arms 24 pivoted on the shaft 4 is spring urged to abut a stop 26 as shown in Fig. 3, in which position it engages a cam 27 on the disc. In the fully wound condition of the reel either the pawl 17 engages a tooth of the wheel 11 locking the reel against unwinding in which case to use the belt, the vehicle occupant raises a lever 20 fixedly mounted on the member 16 which moves the pawls to the unlocking position of Fig. 3 or the fully wound belt itself lifts the lever 20; pull on the belt then rotates the shaft and hence the wheels 10, 11 and disc 13 until the cams 27, 28 engage the arm 24 and the vertical edge of the window 29 respectively. The nose 34 on the disc 13 retains the pawl 17 and thus the pawl 15 in the unlocking position as long as the pull on the belt exceeds the pull of the return spring 8. If the pull on the belt stops, even briefly, or is reduced below this value the return spring immediately starts rotating the shaft 4, wheels 10, 11 and disc 13 in the wind-in direction, the pawl 17 slipping off the nose 34 and engaging a tooth of the wheel 11 and the pawl 15 engaging a tooth of the wheel 10 preventing unwinding of the belt. If e.g. a crash should occur when the pawls are in locking position, the belt would be pulled down against the guide plate 22 by the impact, the arm 24 rotating and, through engagement with the cam 27, causing the disc to rotate in the direction to release the pawls 17, 15 into unlocking position.
Patent GB-1185864-A (GB)
Title: Snap Action Electric Switch
IPC: H01H13/36
Filed: 1967-09-29
Abstract: 1,185,864. Retractive switches. TATEISI ELECTRONICS CO. 29 Sept., 1967 [22 Oct., 1966], No. 44337/67. Heading H1N. A snap-action switch has an actuating member 3 pivoted at B on a terminal 2, and a resilient tension member 5 with an elongated opening (Fig. 3), one end of which pivotally engages member 3 at E and the other end of which pivotally engages a contact carrier 6 at K by engaging cuts (12, Fig. 3) therein. Carrier 6 has a compressible spring portion 14 and a contact 9, and it pivotally engages terminal 2 at G. On depression of.button 4, member 3 pivots at B, and member 6 snaps overcentre so that contact 9 breaks with contact 7 and makes with contact 8 (Fig. 2). On release of button 4, contact 9 is snapped back into engagement with contact 7.
Patent GB-1098376-A (GB)
Title: Production of crosslinked polymers
IPC: C08L63/00
Filed: 1965-10-20
Abstract: A composition suitable for decorating textiles comprises (1) a colouring agent, e.g. a pigment, (2) an extender and (3) a heat curable resinous composition.  The latter consists of an emulsion interpolymer of 25-30% by wt. styrene, 45-75% by wt. of an alkyl acrylate containing 7 to 15 carbon atoms and 0.5 to 10% by wt. of at least one reactive acrylic (e.g. containing carboxyl, hydroxyl, epoxy or amide groups) together with a curing agent; this is present at 0.5 to 30% by wt. of the interpolymer and consists of a mixture of a polycycloaliphatic polyepoxide each cycloaliphatic ring of which contains 5 or 6 carbon atoms and at least one epoxide group and from 10 to 90% by wt. of the mixture of a hexa-alkoxymethylmelamine in which the alkyl group contains 1 to 4 carbon atoms (e.g. hexamethoxymethylmelamine).  The composition may be cured by heating (e.g. at 180 DEG  to 220 DEG  F. for up to 3 minutes).  The interpolymers may be prepared by polymerizing styrene with at least one appropriate alkyl acrylate and at least one monomer selected from methacrylamide, N-methylolacrylamide, 2-hydroxypropyl methacrylate, glycidyl methacrylate, methacrylic acid and hydroxyethyl acrylate in aqueous emulsion employing sodium lauryl sulphate and nonylphenoxypolyethyleneoxy ethanol emulsifiers and ammonium persulphate catalyst.  The pH of the reaction product is adjusted to 8.5-9.0 with aqueous ammonium hydroxide.ALSO:A composition suitable for decorating textiles comprises (1) a colouring agent, e.g. a pigment (2) an extender and (3) a heat curable resinous composition. The latter consists of an emulsion interpolymer of 25-30% by wt. styrene, 45-75% by wt. of an alkyl acrylate containing 7 to 15 carbon atoms and 0.5 to 10% by wt. of at least one reactive acrylic (e.g. containing carboxyl, hydroxyl, epoxy or amide groups) together with a curing agent; this is present at 0.5 to 30% by wt. of the interpolymer and consists of a mixture of a polycycloaliphatic polyepoxide each cycloaliphatic ring of which contains 5 to 6 carbon atoms and at least one epoxide group and from 10 to 90% by wt. of the mixture of a hexa alkoxymethylmelamine in which the alkyl group contans 1 to 4 carbon atoms, (e.g. hexamethoxymethylmelamine).  The composition may be cured by heating (e.g. at 180 to 220 DEG F for up to 3 minutes).  In examples printing pastes containing phthalocyanine blue and green and azo red are printed on cotton, polyester, nylon and rayon fabrics.
Patent GB-1525514-A (GB)
Title: Primary feeds for offset parabolic reflector antennas
IPC: H01Q13/02
Filed: 1975-10-29
Abstract: 1525514 Antenna feed device A W RUDGE and N A ADATIA 26 Jan 1977 [29 Oct 1975] 44505/75 Heading H4A [Also in Division H1] A primary feed device for an offset curved (e.g. parabolic) reflector antenna is constructed to compensate for depolarization or squint effects which would otherwise result from the system asymmetry. The feed device comprises a waveguide horn with inner wall projections asymmetrically placed with respect to the horn axis. These introduce at least one higher order wave mode which combines with the fundamental mode to provide in the aperture plane of the horn a compensating non-uniform polarization of the electric field. If linearly polarized radiation is fed into the horn, the field in the aperture plane is copolarized except for two diametrically-opposed regions of cross-polarization. A circular or rectangular-sectioned horn may be used.
Patent GB-1396113-A (GB)
Title: Coated medicines and process for preparation of coated medicines
IPC: A61K9/28
Filed: 1972-09-27
Abstract: 1396113 Coated medicines EISAI CO LTD 27 Sept 1972 [27 Sept 1971 30 Aug 1972] 44581/72 Heading A5B [Also in Division C3] Coated medicines e.g. tablets or pills wherein the coating comprises a medicine coating agent comprising a homopolymer or copolymer of a substituted acrylamide expressed by the following general formula wherein R 1  to R 6  stand for a hydrogen atom or a C 1-4  alkyl may be prepared by coating a medicine with the coating agent preferably in the form of an organic solvent solution e.g. ethyl alcohol. The agent preferably comprises a copolymer of (1) the above defined substituted acrylamide, with (2) a carboxyl group containing unsaturated monomer and (3) an unsaturated carboxylic acid ester of a polyalkyleneglycol C 1-4  alcohol ether.
Patent GB-1267824-A (GB)
Title: Apparatus for automatically drawing lines
Inventor: RITCHIE DAVID SCARTH
IPC: G03F1/88
Filed: 1969-09-10
Abstract: 1,267,824. Recording-apparatus. BARR & STROUD Ltd. Aug. 27, 1970 [Sept. 10, 1969], No.44711/69. Heading G1J. Apparatus for automatically tracing a line in accordance with recorded data which includes the co-ordinates of points on the line comprises a source 10 of light from which a beam 11 is projected on to a photo-sensitive surface 18, an adjustable diaphragm 12 to control the image size, means (e.g. carriages 9) movable at varying speeds in accordance with the data for automatically moving the beam 11 to produce a trace of the line on the surface 18 and means for maintaining a predetermined "exposure of the trace" (i.e. uniform intensity when developed) over the full range of image sizes, these last means comprising an apertured opaque member 13 located between the light source 10 and lens 17 and selectively movable into and out of the beam 11 by a motor 23 in order to cause uniform variation in the intensity of light across the image. The intensity of the beam 11 can be controlled according to image size by a computer supplying a signal to (a) a unit controlling the voltage supply to the light source 10 or (b) the motor 23 for positioning the filter 13, Fig. 4, in the beam 11 and causing uniform variation of its intensity. By feeding a signal proportional to the tracing speed to the filter-drive motor 23 the beam intensity and hence the exposure of the trace can be predetermined over the full range of image sizes and tracing speeds. Alternatively, the predetermined exposure of the trace can be achieved by controlling the tracing speed in accordance with the beam size and/or the intensity of the beam. This control can be affected directly by the computer or by feedback signals from (a) the diaphragm 12 or motor 22 to represent beam size and (b) the beam itself or the filter 13 or the motor 23 to represent beam intensity used to optimize the tracing speed. The invention is shown embodied in the apparatus described in Specification 1,107,981 in which two carriages 9 carrying the source 10 are controlled by the computer to move and trace a line defined by cartesian or polar co-ordinates; a resolver-synchro feeding a signal proportional to the tracing speed to a motor 24 orienting a dove prism 16 with respect to the direction of tracing; a selectively energized relay enabling a beam interrupter 14 to cause an interrupted line trace; a light mask in the path 11 splitting the beam for tracing parellel lines.
Patent GB-996888-A (GB)
Title: Improvements in and relating to the manufacture of glass ribbon
Inventor: NOVACK THEODORE
IPC: C03B13/00
Filed: 1962-11-27
Abstract: A ribbon 16 of low-viscosity vitreous material, e.g. barium titanate glass, is formed by passing a stream of the molten material into a closedsided recess formed as the bite of a pair of co-operating rollers 10, 101.  One or both of the rollers is formed with a groove a, a1, which may be of curved or of rectangular cross-section, the groove in each roller registering <PICT:0996888/C1/1> with a complementary groove on the surface of the other roller. Molten low viscosity glass is fed from a melting pot to an electricallyheated, U-shaped wire guide 13 whence it passes to the bite between the rollers where it forms a shallow pool 15.  A plurality of grooves may be provided in each roller.  The rollers are water cooled.
Patent GB-1182968-A (GB)
Title: Process for Opening Tow.
IPC: D01H5/24
Filed: 1967-10-03
Abstract: 1,182,968. Opening tow. E. I. DU PONT DE NEMOURS & CO. 3 Oct., 1967 [3 Oct., 1966], No. 44906/67. Heading D1F. 225,000 to 2,000,000 denier tow of crimped non-elastomeric filaments is opened (so as to render the tow suitable for direct tow-to-sliver conversion with " subsequent " cotton system drafting and spinning) by passing the tow around a curved needled surface moving at 1.1 to 15 times the feed speed of the tow. The surface may be comprised by a needled roller, by a needled roller on each side of the tow at spaced points, or by a needled belt. The roller described has a needled surface with the needles arranged in rows of possibly different needle frequency, diameter, and length, examples of which are given, or may have bars of needles extending between the flanges of the roller with an endless film looped over rods mounted between the bars and under rods mounted below the needled bars. The tow may be of a polyamide, polyester, polyolefin, an acrylic polymer, or a cellulosic material.
Patent GB-1526821-A (GB)
Title: Pressure control valves
IPC: B60T13/40
Filed: 1975-10-31
Abstract: 1526821 Fluid pressure braking systems; valves ROBERT BOSCH GmbH 31 Oct 1975 [12 Nov 1974] 45133/75 Heading F2F A valve 27 for reducing the outlet pressure at a port 31 relative to the input pressure at a port 30 only when a control pressure is applied to a chamber 33 below a piston 35, for use in a braking system to reduce the tractor vehicle brake pressure relative to a trailer brake pressure when the trailer is coupled thereto, comprises a lapping or double valve with one seat 39 at one end of the hollow stem 38 of the piston 35, a second seat 40 on a stepped piston 42 and encircling but spaced from the stem 38 and a seating member 41 sealed by a lip 53 on a casing extension 52 with a venting passage communicating on one hand with an outlet valve 54 and on the other hand, through the centrally apertured double valve and stem 38 with an atmospheric pressure chamber 37 above the piston 35.  As shown in Fig. 2 the spring 34 urges the stem downwards seating the valve seat 39 on seating member 41 giving equal inlet and outlet pressures at the ports 30 and 31 which communicate through chambers 50 and 57 and the open valve 40/41. When a control pressure is applied to the chamber 33 the piston is raised and the lapping double valve 39/40/41 and the stepped piston 42 act to reduce the outlet pressure relative to the inlet pressure. A non- return valve 56 in the piston 42 allows flow from the outlet to the inlet. In the air over hydraulic dual braking circuit respective valves 27, 28 as described are provided in the lines 25, 26 from the dual foot valve 9 to a twin master cylinder 10 connected to front and rear hydraulic brakes 12, 13 and a line 29 connects the valves to the line 24 which supplies a trailer brake valve 14 when a trailer is coupled at 23 to a trailer pressure supply line 8. The system also includes reservoirs 5, 6, reducing valves 5<SP>1</SP>, 6<SP>1</SP>, an auxiliary service supply 7 and a hand brake valve 16 and relay valve 17.
Patent GB-1522610-A (GB)
Title: Radiation guide
IPC: G02B23/24
Filed: 1975-10-21
Abstract: 1522610 Light guides BRITISH STEEL CORP 21 Oct 1975 [21 Oct 1974] 45460/74 Heading G2J A light guide for location in a furnace wall 16, 18, which must be flexible (because of deformation of the wall due to thermal stresses) but for which optic fibres cannot be used (because of the high temperatures) comprises a number of rigid transmissive elements (e.g. spheres 24 or cylinders with hemispherical ends), Fig. 3 (not shown), in contact or closely adjacent inside an open-ended tube 28. The elements may be made of quartz or sapphire. The inner-most part of the guide comprises a probe made of sapphire or quartz rods terminating in a small sphere 24a.
Patent GB-1058866-A (GB)
Title: Process for the preparation of alkenyloxysilanes
IPC: C07F7/18
Filed: 1965-10-27
Abstract: 1-Alkenyloxysilanes are prepared by reacting a compound containing an Si-H bond with an olefin containing an H atom directly bonded to an unsaturated C atom, and carbon monoxide, in the presence, as catalyst, of a Group VIII metal carbonyl, or a compound convertible thereto under the conditions of the reaction, using a pressure sufficient to prevent dissociation of the said carbonyl at the reaction temperature used.  Suitable Si compounds have the formula <FORM:1058866/C3/1> in which R4, R5 and R6, which may be the same or different, each represent alkyl, cycloalkyl, aryl, alkaryl, aralkyl or functional radicals such as alkoxy, cycloalkyloxy, aryloxy or aralkoxy. Such radicals may bear inert substituents. The radicals may also be organosilyl or organosilyloxy.  Suitable olefinic compounds have the formula <FORM:1058866/C3/2> wherein R1, R2 and R3, which may be the same or different, each represent H or a hydrocarbon radical which may be aromatic or contain at most one aliphatic double carbon-carbon bond. Inert substituents may be present on these radicals. Additionally two of the radicals R1, R2 and R3 may together form a divalent radical, e.g. polymethylene or alkenylene.  The proportions of reagents are theoretically such that the molar ratio Si-H:-HC=C=:Co is 1:1:1, but generally an excess of olefine is used, and a large excess of Co, the latter being provided by conducting the reaction under pressure of an atmosphere thereof.  Hydrogen gas may also be present, and the reaction may be conducted in an inert solvent, e.g. cyclohexane or benzene.  As catalyst iron pentacarbonyl, nickel tetracarbonyl and dicobalt octacarbonyl are mentioned.  Cobalt acetate may also be used.  Suitably between 0.5-10.0% by weight expressed as metal of the catalyst is used, based on the Si-H compound. Reaction temperature is suitably 100-250 DEG C. The products are separated and purified by distillation.
Patent GB-1236117-A (GB)
Title: Method of metallizing phosphor screens
Inventor: SAULNIER THEODORE ALEXANDER
IPC: H01J29/28
Filed: 1969-09-16
Abstract: 1,236,117. Luminescent screens. RCA CORPORATION. 16 Sept., 1969 [17 Sept., 1968], No. 45608/69. Heading H1D. In a method of metallizing a cathode-ray tube screen by depositing an organic film on a phosphor layer to form a substrate, depositing metal on the substrate, and volatilizing the substrate; the organic film comprises a waterbased emulsion of a water-insoluble filmforming resin .including 0-1-to 4% by weight of the emulsion hydrogen peroxide, and 0-5 to 7À0% of a water-soluble film-forming polymer. The emulsion may also include up to 20% of colloidal silica based on the weight of the water-insoluble resin, which may be an acrylate resin, a polyvinyl acetate resin, a styrene-acrylic-acrylonitrile resin, or a styrene-acrylate resin forming 5-20% by weight of the emulsion. The soluble polymer may be a polyvinyl alcohol, a boric acid complex of polyvinyl alcohol, a gelatin, methyl cellulose, hydroxymethyl cellulose, or a glue. The phosphor screen may be a dot screen, a line screen, a penetration screen or a monochrome screen.
Patent GB-1015171-A (GB)
Title: Apparatus for stacking bricks and the like
IPC: B65G49/08
Filed: 1961-12-21
Abstract: 1,015,171. Stacking-machines, conveyers, chains &c. R. SCHWEIGER. Dec. 21, 1961 [Dec. 22, 1960], No. 45878/61. Headings B8A and B8C. Bricks are arranged on kiln trucks in spaced narrow stacks, spaces being provided also between bricks in the rows of the stacks and alternate layers being staggered to bond the stacks. The end two bricks in each row are closed together and alternate pairs turned through 90 degrees. Apparatus for loading the trucks includes a vertically reciprocating carrier on which a stack is built as it descends in stages, the base of the carrier then withdrawing to deposit the stack on the truck and the latter moving forward to receive the next stack. Means are provided to eliminate faulty bricks. Dried bricks arranged in slats 1c are forwarded by tiered conveyers 1a, Figs. 1, 11, belts 1b centering the slats. The forward slats contact switches 1d to stop the conveyers 1a and a horizontally reciprocating transfer means 2 engages under the foremost tier of bricks and slats, Figs. 2, 11, to deposit them on supports 3b of vertically ascending conveyers, Fig. 3, which engage the extreme ends of the slats. As each row of bricks reaches the uppermost position it is moved on to a belt 3e by a pusher 3c for forwarding by the flights 3f of an overhead conveyer while the slats are engaged by the return movement of the pusher to fall on to a conveyer 3g for ejection. Plates 3d on the pusher move towards each other to close and straighten up the bricks during transfer. A higher speed belt 4d causes separation of the bricks, aligned by belts 4a and they then pass along a narrow path 4b whereby broken bricks will topple to one side or the other and thus be removed. A heavy roller may bear on the bricks to break unsound ones. After traversing a roller conveyer 4c, the bricks pass beneath belts and a roller (Fig. 5, not shown) at a position 5 where they are once again closed up on conveyer 5b and again spaced and divided into groups of predetermined length on belts 5c. An overhead pusher means 8a, Fig. 8, advances each group from the belts over a roller conveyer 8e on to transverse belts 6 which may move to centre each group in its line of travel. Plates 6a close up bricks at either end of the group, Fig. 6. Further advance of the group brings its ends on to turntables 7, one of which rotates through 90 degrees to turn a pair 8d at one end. The belts 6 and turntables 7 are carried by a frame 6b which is movable transversely to stagger alternate groups so that in the stack, the spaces between bricks will not be vertically aligned. Each group finally arrives on a carrier 8, Fig. 8, which descends in steps so that a stack is built up on its base 8b. When the base reaches a kiln truck 9 it withdraws beneath the carrier rear wall 8c to deposit the stack. The truck then moves to enable a further stack to be placed adjacent the first and so on. The carrier 8 is adjustable for difference stack heights.