baber/WOPTO huggingface dataset:
Patent GB-1337755-A (GB)
Title: Wide angle fish eye lens
IPC: G02B13/04
Filed: 1971-09-27
Abstract: 1337755 Optical objectives NIPPON KOGAKU K K 27 Sept 1971 [30 Sept 1970] 44911/71 Heading G2J A "fisheye" lens system includes a forward lens group and a rearward lens group of positive refractive power disposed rearwardly of the forward lens group, the forward lens group comprising, in order from the object side three negative meniscus lenses L 1 , L 2 , L 3 , a biconcave lens L 4  and a positive lens L 5 , the lenses of this forward group satisfying the conditions:- # 1 /R 1 > 1À0; # 3 /R 3 > 1À0; 2 ># 2 /R 2  > 1À5; 2 > # 4 /R 4  > 1À5;   2 > # 6 /R 6  > 1À5 and V 4  > V 5  where R 1  to R 6  and Ï 1  to Ï 6  represent the radii of curvature and the effective diameters of the successive surfaces of the three negative meniscus lenses, and V 4  and V 5  represent the dispensive powers of L 4  and L 5 , respectively L 4  may be cemented to L 5 . Optical data are given for three examples.
Patent GB-1167928-A (GB)
Title: A System for Measuring Deflections Optically.
Inventor: FRIED DAVID LARRY
IPC: G02B26/08
Filed: 1967-10-03
Abstract: 1,167,928. Optical apparatus. NORTH AMERICAN AVIATION Inc. Oct. 3, 1967 [Nov. 22, 1966], No. 44917/67. Heading G2J. An apparatus for amplifying angular deflections to be measured optically comprises a focusing means (e.g. a spherical mirror 10 or a lens) having arranged at conjugate points thereof a pair of mirrors 11, 12, at least one of which is rotatable so that a beam of light, e.g. a laser, incident on mirror 11 from a source D undergoes a constant number of multiple reflections over progressively changing paths until it emerges through a slit 40 or (141) in the focusing means.
Patent GB-1366901-A (GB)
Title: Multiplex terminal equipment with calling and information si gnal presence detection
IPC: H04J1/14
Filed: 1971-10-01
Abstract: 1366901 Multiplex radio signalling LICENTIA PATENT - VERWALTUNGS - GmbH 1 Oct 1971 [13 Oct 1970] 45877/71 Heading H4L In a frequency division multiplex terminal station, means are provided for cyclically switching to the respective channels to determine whether calling or information signals are present on each channel. Received signals are fed to a mixer arranged to receive a continuous sequence of local oscillator frequencies fk 1  to fk n  and the resulting signals are supplied via a bandpass filter and IF amplifier to the demodulator. These signals are in binary form represented by two frequencies and are supplied to an evaluating circuit and to the output of the receiver. The evaluating circuit includes coincidence circuits for detecting the zero crossings of the signals in a predetermined time interval much shorter than the bit duration and provides an output indicating whether the received signal if present is a calling or an information signal and a further output providing a squelch control for the receiver.
Patent GB-1522008-A (GB)
Title: Device for the control of a tool using a tangential feele
IPC: B23Q35/123
Filed: 1975-11-05
Abstract: 1522008 Control system ETS MAURICE FRESCHARD & FARELEC 5 Nov 1975 [5 Nov 1974] 45892/75 Heading G3N A control system for a machine tool, e.g. a lathe, milling machine, torch, cutting laser, metal spray or paint spray, uses a feeler finger 3 which follows a template which determines the tool motion direction. Finger 3 is mounted on a feeler body 2 which oscillates in a Cardan suspension about centre of oscillation C within feeler support 1 integral with the tool. The top of body 2 is hollowed to hold a ball 5 contacting shaft 6 which is guided by support 1 to cause plate 7 to pivot about horizontal axis 8. Arm 9 controls micro-switch 10 which provides an electrical supply when the finger has reached a predetermined inclination during the template approach phase after contacting the template profile. Plate 7 is urged towards the body by spring 11 and feeler pivotal movement about C is transformed into shaft 6 linear displacement by the joint including ball 5. Disc 4 has two magnets 12, Fig. 3 (not shown), each straddling one of two orthogonal co-ordinate axes and each magnet coacts with a respective Hall generator Hy and Hx (not shown), each generator being supported by columns 14 integral with support 1. The generators are only sensitive to movements of the line of separation of the magnetic poles. Two further Hall effect generators, Fig. 2 (not shown) are used as correction devices. When the feeler finger follows the template profile, its x, y axis displacements are transmitted to disc 4 with mechanical advantage 20, 20' and these are transformed into electric signals by the Hall generators 21, 21', Fig. 6. The resulting outputs are amplified and used to control the tool speed.
Patent GB-1450590-A (GB)
Title: Correcting lens
IPC: G02B3/08
Filed: 1973-10-02
Abstract: 1450590 Colour television tubes RCA CORPORATION 2 Oct 1973 [18 Oct 1972] 45926/73 Heading H1D An optical lens for use in the manufacture of a phosphor screen of a colour television tube has parallel, elongated discontinuities defining parallel elements 11, 12, 14, 16 ..., 26, each of which is separately contoured to reduce misregistration in the completed screen. The discontinuity may be of surface gradient (Fig. 5, not shown), or formed by the interfaces between elongated strips of glass comprising the elements and formed of different refractive index. In use, the lens is orientated such that the strips extend in a direction perpendicular to the direction in which dynamic degrouping error is a maximum.
Patent GB-1006909-A (GB)
Title: Friction disc clutches
IPC: F16D13/71
Filed: 1962-12-05
Abstract: 1,006,909. Friction clutch. BORG-WARNER CORPORATION. Dec. 5, 1962 [Dec. 29, 1961], No. 45957/62. Heading F2C. In a friction clutch of the kind wherein a driven disc 20 is clamped by springs 40 between a flywheel 12 and presser plate 16 which is moved axially away from the flywheel 12 by levers 44 for clutch disengagement, the friction lining 84 that makes contact with the presser plate 16 has a lower coefficient of friction than the friction lining 82 which makes contact with the flywheel 12. The tendency to heat the presser plate 16, during repeated clutch engagements, to a temperature that exceeds the critical temperature, above which wear of the friction lining occurs, is thus reduced.
Patent GB-935792-A (GB)
Title: Improvements in or relating to machines for cleaning castings or forgings
Inventor: HRABAK FRANTISEK
IPC: B24C3/26
Filed: 1961-12-27
Abstract: 935,792. Rumbling; blasting. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. Dec. 27, 1961, No. 46201/61. Class 60. Castings and forgings are cleaned by subjecting them to blast while in a trough formed by an endless conveyer 4, the edges of which are engaged by three pairs of sprockets. One pair drives the conveyer; the other pairs are idlers and the sprockets 6 of each of these pairs are rotatably mounted, by ball-bearings 9, roller bearings or bushes, on a shaft 1 non- rotatably mounted in the machine frame 7, so that the sprockets of the pair can rotate relatively to each other, to minimize jamming of the conveyer.
Patent GB-1283710-A (GB)
Title: Rotary radial-flow pump
IPC: F04D29/48
Filed: 1969-09-19
Abstract: 1283710 Centrifugal pumps SIEMENS A G 19 Sept 1969 [26 Sept 1968] 46394/69 Heading F1C A centrifugal pump has at least one curved groove 6 machined in the inner surface of the front wall 3 of the pump casing and preferably extending into the pump inlet 4, so that during reverse running of the impeller 2 the liquid, which normally forms an annulus and creates considerable noise, is removed from the pump via the groove 6 and inlet 4. Entry of liquid into the groove is facilitated by rounding off the edge 9 and by sloping the adjacent sidewall of the groove. Moreover, the faces of the impeller vanes which become the leading faces during reverse running may be acutely inclined to the inner surface of the front wall 3 to force the liquid of the annulus against the inner surface and thus into the groove.
Patent GB-957757-A (GB)
Title: Device for the adjustment of conveyor links particularly in the mass fabrication of shoes
IPC: A43D119/00
Filed: 1961-12-28
Abstract: 957,757. Shoe making machines. SVIT NARODNI PODNIK. Dec. 28, 1961 [Dec. 29, 1960], No. 46428/61. Heading A3B. [Also in Division B8] For accurately positioning shoe lasts 30 in relation to working stations arranged along an endless conveyer, a device located at U has snappers 33, 34 which, when the links 20 carrying the lasts are stationary, snap behind bearings 21, 21<SP>1</SP> and urge the links in the direction S, i.e. in a direction opposed to that exerted by tensioning springs 59. The snappers 33, 34 are actuated by means of levers 25, 26 a curved segment 8 formed on a rotating disc 7 being engaged by a follower 27 mounted on the lever 25.
Patent GB-1347339-A (GB)
Title: Sliding clasp fastener
IPC: A44B19/34
Filed: 1971-10-08
Abstract: 1347339 Extruded sliding clasp fastener tape LIGHTNING FASTENERS Ltd 8 Oct 1971 [26 Oct 1970] 46935/71 Heading B5A [Also in Division E2] An extruded thermoplastics sliding clasp fastener tape, comprises a flat web portion 2, Fig. 1, and a bead portion 3 surrounding a preformed thread 4 incorporated during extrusion when the thread 4 and thermoplastics issuing from the die are drawn from the die under constant tensions. The thermoplastics may comprise PVC, and the cord 4 may be of cotton. The bead 3 and thread 4, Fig. 1, may be of circular section, when individual metallic fasteners are secured along the bead 3 at gripping legs 5a, 5b. Alternatively, Fig. 2, the fastener may comprise interconnected elements 6 formed from plastics filament formed into a folded meander structure, the cord 8 preferably being of synthetic material and, with the bead 7, being of rectangular section to facilitate the attachment of the elements 6, by securing with thread 9 to attach fastener legs 9a, 9b on opposite sides of the bead 7.
Patent GB-1152247-A (GB)
Title: Means for Controlling Conveyor Belt Installations
Inventor: SCHNEIDER ERICH
IPC: B65G47/48
Filed: 1966-10-21
Abstract: 1,152,247. Endless conveyers. ORGANISATION RALFS K.G. 21 Oct.. 1966. No. 47202/66. Heading B8A. Apparatus for completing a control circuit (not shown) to discharge or transfer articles automatically at desired points from an endless conveyer belt comprises a pair of contact rails 15 on opposed sides 11<SP>1</SP>, 11<SP>11</SP> of the conveyer track and each adjustably mounting a contact member 13, the relative spacing of which in the direction of travel being a characteristic of a particular discharge or transfer point. Each document carrier 12 has a pair of contact rails 16 on opposed sides thereof extending in the direction of travel and electrically connected by a pair of contact bridges 14 adjustably mounted thereon. The bridges are spaced along the contact rails 16 a distance equal to the spacing of the contact members 13 corresponding to the desired point of discharge or transfer whereby the control circuit for said point is completed when the document carrier arrives at said destination. In an alternative embodiment (Fig. 2, not shown), each contact rail 16 is formed of two parts (16), (16<SP>1</SP>) thus necessitating four contact bridges (14) per document carrier which must align with four contact members (13) on the contact rail (15), (15<SP>1</SP>) at the desired destination. In a further embodiment (Fig. 3, not shown) the contact rails 16 on the document carrier are not electrically connected, and the contact rails (15) are formed of two portions (15), (15<SP>1</SP>), the portions (15) being electrically connected. Once again four contact bridges 14 must be in alignment with four contact members 13 at the desired destination. The contact rails 16 are covered by insulating guide members 18 along which the contact bridges 14 are slidable and which have indentations (19), (20) at regular intervals therealong whereby the contact bridges may make electrical contact with the contact rail 16. In an alternative embodiment (Fig. 5, not shown), the contact rail 16 is disposed between two vertically spaced guide members wherein the contact bridges are in continuous contact with the contact rail 16.
Patent GB-1280028-A (GB)
Title: Sound actuated toy
IPC: A63H3/28
Filed: 1969-09-29
Abstract: 1280028 Animated toys REMCO INDUSTRIES Inc 29 Sept 1969 [27 Jan 1969] 47847/69 Heading A6S [Also in Division G4] In a sound-controlled toy which includes a motor to drive the toy and operate a noisemaker, the motor is started by sound waves and continues to operate for a predetermined time, the sound receiving means being desensitised during operation of the motor and for a short time thereafter, so that the toy is unaffected by its own sound. A toy quacking duck is described in which a bellow is operated by a cam to produce sequential groups of quacks associated with movements of the beak. Eccentric wheels cause a waddling motion. The toy carries a microphone which responds to a whistle of predetermined frequency to start the motor.
Patent GB-1200302-A (GB)
Title: Improvements to heat sealing machines
Inventor: GREISMAN SAMUEL
IPC: B29C65/78
Filed: 1966-10-25
Abstract: 1,200,302. Seaming non-metallic sheet material. COMTEX Ltd. 25 Jan., 1968 [25 Oct., 1966], No. 47913/66. Addition to 1,148,613. Heading B5K. [Also in Division B8] The apparatus of the main Specification is modified in that the air ducts from which air flows to the heater blocks are used as a framework to support the blocks and the belts or chains. The ducts are in the form of box members 16 having blowers 24 at one end and connections 25 to the heater blocks 21. The ducts are joined by cross-members 17. Belts (not shown) are provided above the bag mouth guides 20. The heater blocks may be as described in Specification 1,200,303. The apparatus is shown tilted back 90 degrees from its working position.
Patent GB-1522145-A (GB)
Title: Light emissive diode displays
IPC: H01L25/075
Filed: 1974-11-06
Abstract: 1522145 Matrix displays MARCONI CO Ltd 6 Oct 1975 [6 Nov 1974] 47930/74 Heading G5C In a display device the face of a substrate 1 carrying LED's 7 is covered with a mirror finished conductive non-depolarizing layer 6, and a circularly polarizing layer is mounted in front of the conductive layer to remove all incident light reflected by the conductive layer. The device comprises an Al 2 O 3  substrate 1, a pattern of conductors 2, an Al layer 3 on the substrate and on the conductors 2, a SiO 2  layer 4 and the reflecting layer 6 of Al or Cu providing leads to the LED's. The device is encapsulated in glass. The circular polarizer comprises a plane polarizer and a #/4 plate and may include an antireflection coating. In another embodiment, the Al layer is evaporated on the underside of a glass member which covers the LED's; it also carries the circular polarizer.
Patent GB-1085928-A (GB)
Title: Improvements in and relating to seats, in particular for vehicles
IPC: B60N2/22
Filed: 1965-11-12
Abstract: 1,085,928. Adjustable seat backs. BOSTROM CORPORATION. Nov. 12, 1965 [Nov. 12, 1964], No. 48014/65. Heading A4J. Frame members 24, of a vehicle seat back, extend below their pivotal connection 26, with the seat base 16, to engage horizontal oblique slots 30 in a bar 28, mounted in the base 16 for end-wise sliding motion. The ends 32 of the members 24 are moved in the fore and after direction, to vary the inclination of the seat back, as the bar 28 is slid normally to this direction.
Patent GB-485693-A (GB)
Abstract: 485,693. Lavatory basins. HUGHES SANITARY CO., Ltd., and HUGHES, B. V. Feb. 11, 1937, No. 4050. [Class 26] [Also in Group XIV] A lavatory basin of moulded pottery is provided at one or both sides with an integral towel rail e, produced in the moulding operation by longitudinally slotting a vertically dependent side flange b of the basin, the rail being thus spaced from and parallel or substantially parallel to an outwardly overturned side rim c of the basin. The rail may be of square or other section.
Patent GB-1314790-A (GB)
Title: Prevention of scale-forming deposits in aqueous systems containing hard water
Inventor: KRUEGER F
IPC: C02F5/14
Filed: 1971-10-25
Abstract: 1314790 Sequestering; softening water JOH A BENCKISER GmbH 25 Oct 1971 [20 Nov 1971] 49413/71 Heading C1C [Also in Division C5] Hard water used in cleaning compositions is softened by the addition of (A) dextrin and (B) an aminoalkylene phosphoric acid or an alkylene phosphonic acid, the wt. ratio of (A) : (B) being 1 : 1 to 50 : 1. The mixture is added to water in concentrations of 10 to 30 mg and up to 500 mg per litre. Typical compounds are (A) starch syrups of 20-60 DE (dextrose units) containing dextrin, glucose and maltose and (B) 1-hydroxyethane-1,1-diphosphonic acid, nitrilotri(methylene phosponic acid), diethylene triamine penta (methylene phosphonic acid) and 1,2-cyclohexane diamine tetra-(methylene phosphonic acid). Optional additions are (C) polymers and copolymers of acrylic acid and methacrylic acid. In examples, the sequestrants are added to aqueous solutions of NaOH containing (I) acid methyl (mixed mono- and di-)esters of phosphoric acid; (II) acid methyl isopropyl ester of phosphoric acid; (III) gluconic acid; (IV) sodium silicate, Na 2 CO 3 , Na 2 SO 4  and Na 3 PO 4 ; to produce solutions for washing bottles.
Patent GB-1106310-A (GB)
Title: Photographic shutter with electronic timing device
IPC: G03B7/083
Filed: 1966-11-04
Abstract: 1,106,310. Photographic shutters. PRONTOR-WERK ALFRED GAUTHIER G. m. b. H. Nov. 4, 1966 [Nov.27, 1965], No.49528/66. Heading G2A. In a photographic shutter having an electronic timing device comprising a manually adjustable time-determining resistance capacitance member disposed on the shutter housing, the timing resistors 37a-37k of said RC member are disconnectable from the device and a variable resistor means is connectable in their place. The variable resistor means comprises a plurality of graded fixed resistors 53 and an infinitely variable resistor 54 bridging the differences of the resistance values of the resistors 53. The exposure time is set either by moving a time setter 39 so that a contact brush 40 contacts one of the timing resistors 37a-37k or, with the brush 40 contacting the plate 47, by moving a slip ring 61 into contact with one of the resistors 53 and adjusting the value of the variable resistor 54. The battery 56 of the variable resistance means 52 can be used in the first case, or alternatively another battery may be used if the means 52 is in the way. After setting the exposure time, a plunger 20 is depressed allowing a cocking and release lever 17 to rotate clockwise. This movement allows a lever 24 to close a switch S 1  thereby energizing an electromagnet 28 to hold the lever 24 thereagainst, this allowing a locking lever 34 to rest on a shutter blade control ring 3. Movement of the lever 17 also results in movement of a lever 7 to a cocking position, and at the end of the cocking operation the lever opens the ring 3 under spring action, and the locking lever 34 engages a shoulder 3b of the ring when the shutter blades 2 are fully open. The opening movement of the ring 3 opens a switch S 2 , thus allowing a condenser C to charge. At a time dependent on the time set, the electromagnet 28 is de-energized, so the control lever 24 returns to the position shown, thus allowing the lever 34 to free the ring 3 to move the blades into the closed position. During the return of the control lever 24, the switch S 1  opens automatically, while the switch S 2  is re-closed as the ring 3 moves into the closing position, thus short-circuiting the condenser C again.
Patent GB-1484171-A (GB)
Title: Pipe-type gas-insulated cable
IPC: H02G5/00
Filed: 1974-11-19
Abstract: 1484171 Gas insulated cables BBC BROWN BOVERI CO Ltd 19 Nov 1974 [21 Nov 1973] 50063/74 Heading H1A A pipe-type gas insulated cable has an internal conductor 3, 3a, held inside a pipe enclosure 1, by means of insulation 2, the conductor being provided with at least one thermal expansion element incorporating a conductive strap 5 and a protective device 7, 7a, 8 so that the expansion element is capable of withstanding compressive forces, other than those caused by thermal expansion. The protective device comprises a compression rod 7 welded to the piece 4<SP>1</SP> on the internal conductor 3a, a plate 7a welded to the rod 7 and a stack of dished springs 8 between the plate and the bottom of the hole 4b. The sleeve 6 is fixed to the piece 4<SP>1</SP> and can slide over the piece 4 which is welded to the internal conductor 3. The conducting strap 5 is flexible and laminated.
Patent GB-1245247-A (GB)
Title: Improvements in pipe couplings
Inventor: WAUCHOPE STIRLING GEORGE
IPC: F16L15/06
Filed: 1967-11-03
Abstract: 1,245,247. Pipe couplings. SIMPLIFIX COUPLINGS Ltd. 4 Nov., 1968 [3 Nov., 1967], No. 50193/67. Heading F2G. A pipe coupling comprises a moulded plastics tubular spigot having an externally tapered threaded portion 10, which extends from an enlarged head 12 at one end and which is screwed into the bore of a coupling body 16, the spigot being provided with a rounded shoulder 14 between the head and the threaded portion and with an axially extending rounded end abutment 15, the shoulder or the abutment sealingly engaging a seat of the coupling body bore.
Patent GB-1449822-A (GB)
Title: Root harvesters
IPC: A01D33/00
Filed: 1972-11-02
Abstract: 1449822 Root crop harvester RANSOMES SIMS & JEFFERIES Ltd 1 Nov 1973 [2 Nov 1972] 50583/72 Heading A1F A trailer root harvester comprises a draw bar 4 connected to ground engaging wheels 2 and on which a probe 8 is attached at its forward end by means of a horizontal pivot. A frame 3, pivotally attached to the wheel axle so that it may rotate relative to the draw bar 4 connects at its forward end with the draw bar via a double acting hydraulic ram 6 which is controlled by a valve 9 operated by probe 8. Rotatably mounted on frame 3 are root lifting wheels 10. The contour of the ground over which the machine advances is followed by the probe 8 which transmits its vertical displacement to valve 9, this in turn operates the hydraulic ram which raises or lowers the frame 3 and the lifting wheels 10 in order that the latter correctly follow the contour of the root crop to be harvested. Where automatic height adjustment is not required, the probe may be omitted and the ram replaced by a screw thread device in order for the lifting wheels to be set at the correct level prior to harvesting.
Patent GB-1510080-A (GB)
Title: Switching systems
IPC: H04Q11/04
Filed: 1976-12-06
Abstract: 1510080 Automatic exchange systems WESTERN ELECTRIC CO Inc 6 Dec 1976 [8 Dec 1975] 50714/76 Heading H4K A multistage crosspoint network 210, 120, 211  which is used to switch p.c.m., TDM connections has a separate control store 220-222 for each stage, the stages being switched successively for each connection in time slots which overlap. The arrangement is for use where the transmission time of one serial p.c.m. word across the crosspoint network exceeds the duration of a time slot. Each stage is switched for one time slot duration with the switching in successive stages being delayed. No buffering is used between stages. The network illustrated in Fig. 5 (not shown) is of a 'mirror image' format, permitting only one path search to be performed to enable the two paths required for a four wire connection to be found. The timing control necessary for the arrangement is described in detail.