baber/WOPTO huggingface dataset:
Patent GB-745796-A (GB)
Title: Improvements relating to direct current voltage regulators
IPC: G05F1/32
Filed: 1954-06-18
Abstract: 745,796. Voltage regulation. STANDARD TELEPHONES & CABLES, Ltd. June 18, 1954 [June 25, 1953], No. 17937/54. Class 38 (4). In Fig. 1 a direct voltage Edc2 produced by a rectifier 6 is stabilized against small variations of load by supplying rectifier 6 from an A.C. source 1 through a normally saturated transformer 5. The effect of variations of voltage of source 1 is compensated by introducing in series with the output of rectifier 6 an opposing voltage derived through a rectifier 3 from the voltage across a resistor 2 in series with the input to transformer 5. A current transformer may be substituted for resistor 2. A potentiometer 4 may be set to give over or under-compounding if required. Series capacitor 11 and inductance 12 are arranged to provide compensation for variations of frequency. A choke-capacity smoothing circuit 9, 10 may be omitted if desired.
Patent GB-1047162-A (GB)
Title: Improvements in feed control systems
IPC: G05D7/06
Filed: 1963-05-07
Abstract: 1,047,162. Automatic control of loads. L. M. G. F. DUMONT. May 7, 1963, No. 17967/63. Heading G3R. A carrier 1 feeds cane, cut by a knife 4, to a sloping shoot 3 feeding a mill 10. A photo-cell 11 is illuminated by a source 14 and is positioned in the shoot 3 so that the light-beam to it is just obscured by the build-up of cane 13 when the thickness of the cane is at an optimum valve. The obscuring of the photo-cell 11 by the cane causes the energization of a relay 17, through a control circuit 15, to change-over an armature 18 from a contact 19 to a contact 20 to reduce the speed of the carrier by varying the bias, adjusted by a potentiometer 21, of an electronic control unit 23 for an electromagnetic coupling 6 in the drive from a motor 5 of the carrier 1. The coupling 6 has a magnetic winding energized through lines 26 and velocity feedback to the control unit 23 is derived through lines 27 from an A.C. generator 28 driven from the coupling. It is stated that before the photo-cell is obscured by the build-up 13 the cane falling down the shoot 3 and passing in front of the photo-cell causes repeated operation of the relay 17, which will affect the unit 23 and tend to reduce the speed of the carrier with an increase in the amount of cane falling past the photo-cell. The speed of the carrier is manually controlled by changing over switch 24 to connect a manually adjustable potentiometer 25 to the control unit 23. A motor 8 driving the knife 4 is connected to the control unit 23 via a current transformer 29 to provide a safety arrangement so that when the load on the knife-motor exceeds a predetermined value the speed of the carrier 1 is reduced. In an alternative arrangement the current transformer output is fed to an ammeter 32 having contacts 33, 34 modifying the action of relay 17 so as to tend to reduce the speed of carrier 1 when the current taken by the motor 8 is excessive.
Patent GB-704900-A (GB)
Title: Improvements in devices for automatic silk-reeling from cocoons
IPC: D01B7/04
Filed: 1951-07-30
Abstract: 704,900. Reeling silk. OFFICINE GALILEO SOC. PER AZIONI. July 30, 1951 [Aug. 1, 1950], No. 17977/51. Class 120(2) A device for automatically feeling silk 1 from cocoons of the kind comprising a pneumatic device in the form of a slotted head 4 for gauging the cross-section of the thread and controlling the reeling rate through air under pressure supplied to the gauging device, is characterized in that an air-conditioning device is provided in the pressure-air supply circuit so that the air is heated and saturated with water, as by passing it through a closed tank 6 heated by the hot water in the cocoon bath 2, so that moisture in the pressure air condenses on the edges of the slot 3 of the trough 4 to prevent the gum from the silk from hardening and making the gauging and controlling device function incorrectly. The gauging device is preferably made of a material, e.g. copper, of highest conductivity and is furnished with fins 8 to assist in keeping it sufficiently cool to promote condensation. The slot of the gauge may be chromium coated.
Patent GB-1425240-A (GB)
Title: Folding and adhering of tape
IPC: G03D13/00
Filed: 1973-04-13
Abstract: 1425240 Cinematography NORITSU KOKI CO LTD 13 April 1973 [13 April 1972] 17995/73 Heading G2E Adhesive splicing tape G, is firstly adhered to abutting film ends and next made to wrap around at least one edge and the other face of the films F 1 , F 2  by passing it around roller 4. The flanges 3 are spaced apart by a distance equal to the film width plus at least the thickness of the tape G. Rollers 6, 7 subsequently press the tape G into contact with both sides of the films F 1 , F 2 . Fig. 3 shows the state of the tape at points A to G in Fig. 1.
Patent GB-442826-A (GB)
Title: Wheel suspensions for vehicles
IPC: B60G11/14
Filed: 1935-06-22
Abstract: 442,826. Vehicle spring-suspensions. DUBONNET, A., 114, Boulevard Maurice BarrÞs, Neuilly-sur-Seine, France. June 22, 1935, Nos. 18009 and 18010. Convention dates, June 23, 1934 and Dec. 1, 1934. [Class 108 (ii)] In a wheel suspension for vehicles wherein a lever connected to the wheel is engaged by a body subjected to the action of resilient means and in which the flexibility of the suspension is reduced on compression of the resilient means beyond its mean value by increasing the effective lever arm, the body or an intermediate member is subjected to the action of a guide which applies a transverse movement during the pivoting movements of the lever whereby the distance between the body &c. and the pivoting axis of the lever is varied. As shown in Fig. 1 a spring 1 is mounted in a casing 2 and bears at its lower end against a member 8 pivoted to a lever 7 pivoted at D. A further lever A bears upon the member 8 and is pivoted on a shaft B to which is secured the wheelcarrying arm. As shown, on compression of the spring 1 under load the contact of the levers 7, A follows the curve C<2> so that the effect of the restoring force F of the spring is lessened partly through the decreased effective length of the lever 7 and the increased effective length of the lever A thereby decreasing the flexibility of the spring. If, in addition, means are provided for tending to increase the restoring force, i.e. the flexibility, on expansion of the spring it follows that, on cornering, the lateral canting of a vehicle is decreased partly by the braking of the tendency of the springs on the inner side to expand and the decreased flexibility of the suspensions on the outer side. Fig. 8 shows an arrangement in which, on expansion of the spring 1 the effective leverage of the lever A is decreased. In this instance the lever 7 is provided with a nose or projection 14 which comes in contact with a curved surface 15 of the lever A on expansion of the spring 1. The lever 7 is provided with a roller 8 bearing upon the spring plate 5 by means of needle rollers 13 and the surface 15 may be varied according to the flexibility desired. To vary the flexibility, modifications are described in one of which the lever 7, Fig. 6, is pivoted on an arm pivoted at E so that its effective leverage may be varied. In another modification the lever 7 is dispensed with and the spring plate 5 is caused to move laterally with respect to the lever A during deflection by means of a curved slot 20, Fig. 13.
Patent GB-1472117-A (GB)
Title: Laminated articles and method of making same
IPC: G06K19/02
Filed: 1974-04-24
Abstract: 1472117 Laminates ADDRESSOGRAPH MULTIGRAPH CORP 24 April 1974 [3 May 1973] 18022/74 Heading B5N [Also in Division B6] A laminated article, e.g. a credit card, comprises a base of vinyl plastics which is a sheet or film made from a homopolymer of vinyl chloride or a copolymer consisting of a major proportion of vinyl chloride and a minor proportion of vinyl acetate, having a surface at least a portion of which is provided with a coating consisting of a dry residue of a partially hydrolysed vinyl chloride-vinyl acetate copolymer comprising, on a solids basis, 88-94% by weight polyvinyl chloride, 2-6% by weight polyvinyl acetate and 2-10% by weight polyvinyl alcohol, and a magnetic impulse record element comprising a dispersion of magnetic particles in a binder matrix overlying and bonded to the coating. The base may comprise a vinyl plastics sheet of thickness 0À01-0À03 inch to which is laminated a vinyl plastics film of thickness 1-3 mils. The magnetic impulse record element, which may be in the form of a stripe of width greater than 0À3 inch, may be transferred to the base from a backing strip, e.g. a cellulose acetate or polyester resin film, by a hot stamping process, the coating being applied to the surface of the magnetic coating material on the backing strip or to the base over its entire surface or only to the area to which the element is to be applied. The element may comprise acicular particles of gamma ferric oxide or particles of cobalt doped gamma ferric oxide, chromium dioxide, acicular iron, cobalt or nickel, cobaltphosphorus, nickel-phosphorus or cobalt-nickelphosphorus, in a binder comprising vinyl chloride-vinyl acetate copolymers, vinylidene chloride/acrylonitrile copolymers, butadiene/ styrene rubber polymers or polyurethane elastomers, and may also contain carbon black, zinc naphthenate, dioctyl sodium sulpho-succinate, the mono-, di- and tri-esters of oleic acid and triethanolamine, stabilizers, lubricants and plasticizers.
Patent GB-977745-A (GB)
Title: Afocal wide-angle supplementary objective
IPC: G02B15/00
Filed: 1962-05-10
Abstract: 977,745. Supplementary objectives. K. VOCKENHUBER, and C. HAUSER. May 10, 1962 [May 10, 1961], No. 18078/62. Heading G2J. In an afocal wide-angle supplementary objective for objectives of different focal length, in particular for variable focal length objectives, with one negative and one positive cemented component, which are arranged in the manner of a reverse Galibean telescope, the positive component has two cemented surfaces, whereby the cemented surface near the following main objective has a positive refraction power, the second cemented surface has a negative refraction power and both cemented surfaces are concave towards the rear. Preferably, with a refractive index difference between lenses L4 and L5 of greater than 0.15 the value of r6 is not greater than 1/3 focal length of the positive component and, with a refractive index difference between lenses L3 and L4 of greater than 0. 07 the value of r5 is between  and 1/5 of the same focal length. The negative component preferably comprises two lenses, the cemented surface having negative refractive power, surface r1 being plane or concave to the front with large radius of curvature and the value of r3 being at least equal to 2/3 the focal length of the negative component. Preferably, cemented surfaces join glass pairs in which both the refractive index and the AbbÚ Number of one lens is higher than the adjoining lens. Optical data are given for two examples.
Patent GB-795497-A (GB)
Title: Polymeric coating composition
IPC: C09D109/00
Filed: 1956-06-12
Abstract: A coating composition comprises a liquid polymer of a conjugated diene and 0.05 to 5 per cent by weight of said polymer of a quinoline or polymer of the formula: <FORM:0795497/IV (a)/1> in which R is an alkyl radical containing 1 to 3 carbon atoms, X is hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, alkoxy, or an aryloxy radical of not more than 16 carbon atoms, Y is hydrogen, alkyl, aryl, alkoxyl, aralkyl or a cycloalkyl radical of not more than 16 carbon atoms and n is an integer of at least 1. The liquid polymer may be a polymer of 1,3-butadiene, 2,3-dimethyl, 1,3-butadiene, isoprene or piperylene or a copolymer of one of these monomers with styrene or methyl substituted styrene.  The liquid polymer may be further treated by gas stripping or by extraction.  Many quinolines are specified of which polymeric 2,2,4-trimethyl-1,2-dihydroquinoline, and 2,2,4-trimethyl-1,2-dihydroquinoline substituted in the 6 position by a phenyl group, an ethoxy group and a dodecyl group are used in examples.  The compositions may be used in a layer of 1-25 milligrams per square inch as a protective coating for metal for food cans.  It may be applied in a solvent such as toluene, xylene, benzene, mineral spirit, or naphtha and after drying the coating may be thermally set at 70-600 DEG  F.  Zinc oxide, and linoleates and naphthenates of lead, cobalt and manganese may be added.  Specification 690,150 is referred to.
Patent GB-145765-A (GB)
Title: Improvements in and connected with spring arrangements for motor vehicles with front wheel driving mechanism
IPC: B60K17/30
Filed: 1920-07-02
Abstract: 145,765. Daimler-Motoren-Ges. Jan. 16, 1918, [Convention date]. Axles and axle structures.-The front wheels are both steered and driven and the axle casing is formed with pivots f for spring supports g to which four quarter-elliptic springs h are secured, so that the axle can rock in a vertical transverse plane about the pivots f. Casings enclosing the driving shafts c are rigidly connected by a member n forming part of a ball-and-socket joint by means of which the structure can swing about the differential shafts b and also about the main driving-shaft a, slots p permitting the latter movement. Specification 146,156 is referred to.
Patent GB-640440-A (GB)
Title: Improvements in or relating to apparatus for moulding tablets of plastic material
IPC: G05G15/00
Filed: 1948-07-06
Abstract: 640,440. Tablet-moulding machines. FORGROVE MACHINERY CO., Ltd., and BROOK, L. July 6, 1948, No. 18143. [Class 87 (ii)] In apparatus comprising a moving train of moulds for moulding from a rope of plastic material a string of tablets each joined to the next by a thin web, means are provided for stopping the movement of the moulds should the string of tablets fail to leave the moulds after being formed. As described, a rope 17 of plastic material is led between co-operating sets of moulds 10, 13, one set being formed on the periphery of a wheel 11 and the other moulds being in the form of flaps pivoted on a chain or a second wheel and being moved towards the wheel 11 to form the tablets by a cam 16. A second cam 18 moves the moulds 13 away from the wheel 11 after the tablets have been moulded, the string of tablets 19 being led away by a conveyer 20 past a trip member 21 pivoted at 27 to a bracket 24 adjustably and releasably secured by a screw 26 on a slide 25 fixed to the machine. Should the string 19 of formed tablets tend to stick in the moulds and be carried round to the entry point of the rope 17, they will be intercepted by the member 21 which will be tilted about its pivot 27 against a spring 28. An adjustable screw 31 carried by the member 21 will thus be made to press against a stop 32 on a pivoted member 33 which will thus be tilted about its pivot 35 against a spring 34. A mercury switch carried by the member 33 will thus be opened to intercept the energizing circuit to the switch gear of the motor during the machine. The machine is thus stopped. The member 21 and bracket 24 may readily be removed for cleaning by releasing the screw 26. The mercury switch may be employed to operate a driving clutch or trip gear, instead of a motor controller, in order to interrupt the moulding members or the trip member may operate a purely mechanical trip gear for this purpose. The apparatus may include cams for causing inward movement of lateral dies to mould or emboss the ends of the tablets as described in Specification 406,220. The invention may be applied to machines in which the travelling train of moulds is constituted by cavities in a moulding chain. Specification 513,277 also is referred to.
Patent GB-960974-A (GB)
Title: Vehicle windscreen cleaning apparatus
Inventor: CLARKE JOHN STANLEY
IPC: B60S1/48
Filed: 1962-05-11
Abstract: 960,974. Windscreen cleaning apparatus. JOSEPH LUCAS (INDUSTRIES) Ltd. May 7, 1963 [May 11, 1962], No. 18165/62. Heading A4F. A combined windscreen washer and wiper apparatus comprises a body part 1, defining a liquid reservoir 2 and a motor housing 3 in which is mounted an oscillatable paddle 4 connected to the wiper, an inlet 8 for connection to a source of air under pressure, an air outlet 9 containing a tube 10 extending into the liquid reservoir 2 so that when air flows from inlet 8 to outlet 9, liquid is drawn up the tube 10 and directed on to the windscreen, valves 13, 26 for controlling the flow of air from the inlet to the outlet and from the inlet to the motor, respectively, and valve means operable by the paddle 4 for directing air alternatively to opposite sides thereof at the completion of each stroke. The wiper motor is operated by air from inlet 8, controlled by valve 26 which flows via one of the two inlet passages 23, in the valve plate 17, through one of the arcuate ports 15 to the right hand side of paddle 4 as shown in Fig. 1. Simultaneously air is exhausted from the other side of paddle 4, through the other arcuate port 15, the groove 24 in the valve plate 17, and the exhaust port 16 to the outlet 9. When the paddle 4 reaches the end of its travel, the over-centre spring 20 causes the valve plate 17, to move angularly until the shoulder 18 catches on the stop 19, to admit air to the other side of the paddle 4, to cause it to move back.
Patent GB-1497608-A (GB)
Title: Slider variable resistor
IPC: H01C10/38
Filed: 1975-05-01
Abstract: 1497608 Variable resistors WILHELM RUF KG 1 May 1975 [2 May 1974] 18209/75 Heading HIS A variable resistor device comprises a resistive track 3<SP>1</SP> arranged on a base-plate 11<SP>1</SP> and a collector track 12<SP>1</SP> spaced both laterally and vertically from track 3<SP>1</SP>, the tracks being contacted by a wiper 8<SP>1</SP> of a slider 5<SP>1</SP> which, on the side opposite to wiper 8<SP>1</SP>, has integral resilient tongues 6<SP>1</SP> which are biased towards a housing cover 22. Interposed between tongues 6<SP>1</SP> and cover 22 are a plastics platelet 13, which moves with slider 5<SP>1</SP>, and a screening plate 14, of hard paper, secured to cover 22 by flanges (17, Fig. 5, not shown). As shown a stabilizing guide extension 10 is provided integral with slider 5<SP>1</SP>; in a modification (Fig. 3, not shown) the device comprises two parallel ganged variable resistor arrangements and extension 10 is omitted.
Patent GB-1163152-A (GB)
Title: Spooling Apparatus.
Inventor: ALEXANDER WILLIAM
IPC: B65H57/26
Filed: 1967-04-20
Abstract: 1,163,152. Guiding cables during winding. WHARTON ENGS. (ELSTREE) Ltd. 23 Feb., 1968 [20 April, 1967], No. 18246/67. Heading B8B. [Also in Division H2] An apparatus for guiding a loaded wire 50 on to a pair of hauling wheels from which the wire passes on to a winch drum, comprises a boom 1 extending to one side of the winch frame 2 and having its remote end anchored through a cable and linkage 21, 20, 22 to a structure other than the winch, so that the pull on the boom will be taken by the anchor. The boom comprises a guide pulley 8 at the said remote end, and a pin 3 at the other end which mounts a guide pulley 7 and pivotally connects the boom arm 50 to a forked support arm 4. The latter carries a sleeve 5 mounted on and rotatable about a hollow spigot 6 rigidly mounted on the winch frame 2, the rotational axis of the sleeve 5 being perpendicular to that of the pin 3. The spigot 6 and sleeve 5, and the boom arm 50 are slotted along their lengths to facilitate insertion and removal of the wire 50, the pulley 8 being readily detachable for the same reason. The pair of hauling wheels are hydraulically driven and may be rotated in the same or opposite direction depending upon the winding arrangement of the wire therearound. The wire passing from the hauling wheels is guided on to the winch drum by a pulley movable across the width of the drum by a double-threaded screw device.
Patent GB-498584-A (GB)
Title: Method and apparatus for feeding molten glass
IPC: C03B7/08
Filed: 1938-06-20
Abstract: 498,584. Glass manufacture. JACKSON, L. MELLERSH-. (Hartford-Empire Co.) June 20, 1938, No. 18282. [Class 56] A method of feeding molten glass to forming- machines consists in flowing a stream of glass on to a vertically-disposed gathering head, rotating the head about its vertical axis, and heating the applied glass so that it flows off the lower end of the head and is then separated into mould charges. The glass flows from a spout 11 on to a shoulder 13 on the rotating heat 1, and winds in superposed coils which build up on the head to form a layer 27. The heat of the glass may be augmented by the flames from burners 7 to cause the coils of glass to fuse together and flow downwards. The head 1 is hollow, and the flowing glass is shaped into mould charges by means of alternating suction and compression, or by a reciprocating plunger 14, within the head or both together. The charges of glass are cut off by shears 9 in the usual way and delivered to moulds. The variation of the air pressure within the head may be obtained by a pump 34 operated in unison with the plunger 14, or by separate reservoir tanks connected to the head by a pipe line with suitable valves. The plunger 14 may be rotated if desired. In a modified construction, some of the glass flowing on to the head flows into the interior through openings formed in the shoulder.
Patent GB-261448-A (GB)
Title: Improvements relating to the decorative printing of textile fabrics
IPC: D06Q1/02
Filed: 1925-07-17
Abstract: 261,448. Calico Printers' Association, Ltd., and Swallow, A. July 17, 1925. Designs, producing.-A brocade effect is produced on fabrics composed of mixed fibres by printing them with a floral or other multicoloured patterns and a blotch pattern in fit with caustic alkali, an interval being provided between the patterns to prevent the colours and alkali from creeping. The interval may be left plain or printed with a colour or other material to strengthen the barrier effect of the interval. After the fabric has been printed, it is dried and treated with steam to render the parts treated by the alkali easily removable.
Patent GB-942289-A (GB)
Title: Noise generators
Inventor: BARRASS ROBERT
IPC: H03B29/00
Filed: 1961-05-19
Abstract: 942,289. Noise generators. PYE Ltd. May 18, 1962 [May 19, 1961], No. 18385/61. Heading H3B. A noise generator comprises a Zener diode D biased near its breakdown voltage by an adjustable potential divider R1, R2, R3, the noise voltage generated across the diode being applied to an output terminal by way of a condenser C and a transistor TR in common base connection.
Patent GB-657775-A (GB)
Title: Improvements in or relating to tufting buttons
IPC: A47C31/02
Filed: 1948-07-08
Abstract: 657,775. Buttons. UNITED MATTRESS MACHINERY CO. July 8, 1948, No. 18392. Convention date, July 9, 1947. [Class 43] A tufting button comprises an apertured, sheet-metal. disc-like head 10 and a single length of half-round wire 12 which is bent into a loop, its ends being brought together with their flat sides abutting to form a cylindrical stem which is passed through the apertured head 10, the latter being secured between a small rib 34 on the stem and the riveted-over top 38 thereof, e.g. by expanding part of the stem in a tapered bore 32 in the head. The loop has straight fabricengaging shoulder portions 22, 24, the inner ends of which merge into the stem 30. The head 10, formed from a flat disc, has a central, cylindrical aperture and a curved rim 15; it is centrally dished at 14 during manufacture so that its under surface is stretched, whereupon the cylindrical aperture assumes a tapering form. A bevel 33 formed at the base of the aperture facilitates; the entry into the bore 32 of the stem 30, which is to be expanded therein by swaging, the bevel 33 being engaged by a small annular shoulder 34 on the stem. All sharp edges on both the head 10 and wire 12 are rounded to prevent damage to the fabric. Specification 617,733 is referred to.