baber/WOPTO huggingface dataset:
Patent GB-1183670-A (GB)
Title: Turret Winder for Tape.
IPC: B65H19/22
Filed: 1968-10-09
Abstract: 1,183,670. Feeding webs. JOHN DUSENBERY CO. Inc. 9 Oct., 1968 [2 Nov., 1967], No. 47945/68. Heading B8R. A tape winding apparatus includes a pair of turrets 12, 14 mounted for independent rotation about a common axis, mandrel-supporting members A, C, and B, D carried by the turrets being individually rotatable about axes lying on a circle concentric with the common axis; adjacently disposed mandrel supporting members, e.g. A and B, are carried by different turrets. Thus, at the time in the winding cycle when the tape has to be transferred from a fully round roll to an empty core, the turrets can be relatively positioned so that the roll and the new core are separated by a minimum distance; the tape can then be cut very close to the new core to obtain a smooth unfolded wrap at the start of the winding operation, whilst the tail of the unwrapped tape is also very short and therefore readily wrapped on to the wound roll automatically. As shown in Fig. 6, a roll 30 of tape 16, eg. pressuresensitive adhesive vinyl electrical tape, has been wound to a predetermined diameter on mandrel-supporting member A, and the turrets 12 and 14 have been relatively indexed so that the distance between roll A and an empty core driven by member B is at a minimum; a fly knife 26 is then operated to give a short tail on the wound roll 30 and to press the leading end of the cut web against the new core. The knife 26 is then retracted (Fig. 7, not shown), and the turret 12 is indexed relative to turret 14 so that the roll 30 is moved away from the roll being wound to an unloading station; meanwhile, the winding operation is continued (Figs. 1 to 5, not shown) and the cycle is repeated when the new roll reaches the desired diameter which is determined by an electric counter associated with a roller 31 co-operating with a guide roller 21 for the tape. The mechanical arrangements of the turrets and associated mechanisms together with a suitable electrical control circuit are described with reference to Figs. 9 to 20 (not shown).
Patent GB-1076253-A (GB)
Title: Method and apparatus for assessing the co-ordinates of the centre of a roughly circular form relative to a fixed axis
Inventor: REASON RICHARD EDMUND
IPC: G01B7/28
Filed: 1962-12-19
Abstract: 1,076,253. Measuring surface contours electrically. RANK ORGANISATION Ltd. Dec.19, 1963 [Dec.19, 1962], No.47990/62. Heading G1N. A rotating feeler 2, Fig. 1, sensed the shape of an approximately circular form such as the outer surface of a shaft or the inner surface of a hole 3, and the degree of eccentricity of the form is determined with reference to the axis of the feeler 2, by extracting the fundamental frequency (i.e. frequency of rotation) from the feeler output and assessing its magnitude in particular directions. In one embodiment a filter 7 passes the fundamental frequency to gates 8, 9, which respectively sample it once per revolution by pulses generated in synchronism with commutator or cam operated switches 16, 17 mounted 90 apart on the spindle 1. Stores 11, 12 provide meters 13, 14 with signals indicative of the Cartesian co-ordinates of the eccentricity. Polar co-ordinates may be obtained from the magnitude of the fundamental component and its phase relative to the position of the feeler, determined for example by a generator mounted on the spindle. A second embodiment extracts the fundamental component by multiplying the feeler output (S, Fig. 2, not shown) by sine and cosine signals from a potentiometer (120) whose wiper rotates with the feeler (102) these signals being respectively integrated over for example one revolution as controlled by switches (123, 124) to indicate on meters (113, 114) the magnitude of the eccentricity in any two perpendicular directions determined by the orientation of the potentiometer track relative to the hole 103.
Patent GB-481213-A (GB)
Abstract: 481,213. Electric control systems. GENERAL ELECTRIC CO., Ltd., and BARTLETT, H. E. Nov. 18, 1936, No. 31547. [Class 40 (i)] [Also in Group XXXIX] In a system for controlling over power mains consuming devices located at remote points, H.F. currents interrupted at different low frequencies are applied to the phase-leads of the system by transformers 15 and transmitted via the phase-leads and the neutral wire 6. The transformers 15 are supplied through a transformer 14 by a H.F. generator 7 which is modulated at a characteristic low frequency according to the operation of key 10 or 11. A blocking network 12 is provided to prevent flow of power current in the H.F. generator circuit. At each remote point a relay 20, connected to the system over rectifiers 24, and blocking network 26, controls one or other of the tuned reeds 27, 28 which through thermostatic switches 30, 32 controls the switching " on " and " off " of the power device 5. Tuned circuits 16 are provided across the windings of the power transformer 1 to lower the impedance of the signalling network.
Patent GB-1445585-A (GB)
Title: Camera for sterophotography
IPC: G03B35/24
Filed: 1973-09-27
Abstract: 1445585 Stereoscopic photography DIMENSIONAL DEVELOPMENT CORP 27 Sept 1973 [27 Sept 1972] 48178/75 Heading G2A The description and drawings are comprised in the disclosure of the Specification 1445583, but the claims are directed towards the camera shown in Fig. 12, in which the distance between the optical axes of the endmost lenses 100 and 108 is defined in terms of other camera and operational parameters.
Patent GB-1455309-A (GB)
Title: Alarm clock mechanism
IPC: G04C23/02
Filed: 1973-11-14
Abstract: 1455309 Alarm clocks GENERAL ELECTRIC CO 14 Nov 1973 [16 Aug 1973] 48464/74 Divided out of 1455306 Heading G3T An alarm clock mechanism is described, substantially similar to that of the Parent Specification, but the claims relate to the provision of a manually operable repeat or "drowse" lever 200. When plunger 218 is depressed, the lever pivots about a pin 201 against a return spring 206, the lower end of the lever engaging a pivot tab 142 on the alarm shut-off lever 20 so that the latter is returned longitudinally to its latched, alarm off, position. The finger 166 of the lever 20 is then in contact with the cam 108 so that, after a delay, the lever 20 is again released by the cam to allow the alarm to sound.
Patent GB-1184137-A (GB)
Title: A Device for Shaping the Edges of Steel Sections
IPC: B21B1/08
Filed: 1968-10-15
Abstract: 1,184,137. Rolling steel sections. KAWASAKI SEITETSU K.K. 15 Oct., 1968 [16 Oct., 1967], No. 48795/68. Heading B3M. The edges of a steel section, having a web and flanges defining a channel, are shaped by apparatus comprising a pair of rolls 15 and a guide assembly 17, part of which assembly is shaped to fit into the channel. For rolling H- or I- sections, as shown, the guide assembly has two shaped beams 18 which engage the rolls 15. The upper beam is pivoted to a mill housing and is counter-weighted. For rolling plain channel sections, one beam 18 is used in association with one profiled roll 15 and one cylindrical roll. Springs may be used t ourge the beams against the rolls. Each roll includes two frusto-conical parts 16 which can have their maximum diameters towards the ends or centre of the roll.
Patent GB-1401839-A (GB)
Title: Fluid power systems
IPC: F04B49/08
Filed: 1972-10-23
Abstract: 1401839 Fluid-pressure servosystems PARKER-HANNIFIN CORP 23 Oct 1972 [15 Nov 1971] 48805/72 Heading G3P [Also in Division F1] Variable displacement pump 1 supplies motor 5 via line 12 and a directional control valve 4 having metering slots 37 the pressure drop across which is applied via 42, 40 to a piston 45 controlling the pump swash-plate 19 such that the pressure drop is maintained constant, resulting in motor 5 moving at a constant speed linearly related to the displacement of spool 35. When the pressure drop exceeds the desired level, piston 45 is depressed against spring 46 and via pin 51 can set depression of piston 29 and reduction of pump output. When the pressure drop is below the desired level, piston 45 rises and moves orifices 49 into piston 29, allowing pressure to build up via 50 in chamber 47 to cause follow-up movement of piston 29 and increased pump output. Valve 3 has a spool 54 which is biased by a spring 56 independence on the swash-plate angle and which responds to pressure in 40 to vent the space below piston 45 and reduce pump output when the product of pump output and pressure reaches a selected maximum, thereby limiting the power input to the pump. Valve 7 allows remote controlled destroking of the pump, and valve 6 has a spool 62 which responds to the pressure drop across valve 4 and shifts to uncover by-pass ports 64 when spool 35 is moved to the neutral position.
Patent GB-1298900-A (GB)
Title: Improvements in or relating to buckles
Inventor: COOPER DANIEL WAUMSLEY
IPC: A44B11/25
Filed: 1970-10-15
Abstract: 1298900 Belt buckles RFD-GQ Ltd 6 Oct 1971 [15 Oct 1970] 49020/70 Heading E2A A buckle for a seat belt or safety harness comprises a frame 11, an operating lever 13, a catch plate 12, and a lug 14 which can be held in the frame by the catch plate. The latter is pivoted to the frame, and biassed by leaf springs 28, 29 towards the fastening position, and the lever is pivoted to the catch plate but is not otherwise connected to the frame. As shown, the catch plate has pivots 32, 33 in apertures in the side plates of the frame and arms 35, 36 formed with pivots 37, 38 which ride in slots 31 in the lever; a catch 34 engages in an aperture 41 in the lug 14 when the latter is inserted between a bar 25 and the base 15 of the frame. The lever is provided with cams 44, which, when the lever is raised to release the lug 14, roll on a roller 21 so that the pivots 37, 38 ride in the slots 31 to rotate the catch plate about the pivots 32, 33 and to allow the catch 34 to release the lug. Thrust on the catch plate is transmitted to the bar 25 and the catch plate is prevented from being raised too far by a portion 47 of a stop plate 24; the latter has faces 48 engageable by notches of the lever.
Patent GB-1018876-A (GB)
Title: Semiconductor device header
IPC: H01L23/055
Filed: 1962-12-31
Abstract: 1,018,876. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Dec. 31, 1962 [May 22, 1962], No. 49032/62. Heading H1K. A header for a semi-conductor device comprises a metallic member having a flat surface on which the device is mounted, the flat surface being stabilized in relation to a major surface of a disc-shaped body of insulating material by being set in a recess in the surface. In one embodiment, the flat mounting surface is made by bending a wire 18, Fig. 1 (not shown), back on itself, as at 11 and 24 and flattening the radially projecting limb 20. The downwardly projecting limb is passed through an aperture 10 in a disc-shaped glass block 8 and other leads, as 16, as may be required, are passed through similar holes 12. A recess 14 is provided in the upper surface of the block 8 to position the flattened portion 20. A metal collar 2 is then placed around the block and the assembly is heated to fuse the glass and cause it to adhere to the lead wires and seal -on to the collar 2. To complete the device, the semi-conductor device is mounted on the flat surface 20, and other leads are taken to the wires 16, and finally an enclosing can is placed over the device and sealed to the collar 2. It is alternatively proposed that the flat mounting surface should be formed either by merely bending the lead wire to a right-angle and flattening the laterally projecting end portion or, for a heavier form of construction, by soldering or welding a flat plate to a straight lead wire.
Patent GB-1279410-A (GB)
Title: Improvements in the manufacture of composite pipes
IPC: B29C53/80
Filed: 1968-10-17
Abstract: 1279410 Composite pipe REDLAND PIPES Ltd 16 Oct 1969 [17 Oct 1968] 49226/68 Heading F2P A composite pipe comprises an inner core pipe (preferably of metal, ceramic, plastics, asbestos cement, or concrete based on normal cement or synthetic resin) wound with resin-impregnated filamentary reinforcing material (e.g. of glass, carbon, nylon or wire), the filaments being under equal predetermined high tension (e.g. in excess of 20,000 lbs./sq. inch and a comparable proportion of the U.T.S. for other filaments). The winding may be helical or circumferential and evenly spaced uniformly tensioned longitudinal filaments may be retained by later hoop windings.
Patent GB-1474839-A (GB)
Title: Process for making calcium sulphate alpha-semihydrate and apparatus used therein
IPC: C04B11/032
Filed: 1975-12-03
Abstract: In a process for preparing calcium sulphate  alpha -semihydrate from calcium sulphate dihydrate, which arises as a waste product in chemical processes, for example in the production of phosphoric acid by digesting rock phosphate with sulphuric acid, the calcium sulphate dihydrate in an aqueous suspension is continuously pumped into an autoclave at temperatures above 110 DEG C and recrystallised therein. Calcium sulphate  alpha -semihydrate suspension is continuously drawn from the autoclave and is introduced into a separation zone. Finally, the calcium sulphate  alpha -semihydrate suspension has cold water passed thereinto on its way from the autoclave to the separation zone. A plant for carrying out the process may consist of a first regulating vessel (2), a rotary filter (5), a further regulating vessel (8), an autoclave (11) and a separation apparatus (16) which are connected in series in terms of flow. Between the autoclave (11) and the separation apparatus (16) a mixing section (12) is arranged, debouching into which, close to its end facing the autoclave (11), there is a cold water supply line (15). <IMAGE>
Patent GB-1092579-A (GB)
Title: Improvements in and relating to lasers
IPC: G02B7/00
Filed: 1965-11-23
Abstract: 1,092,579. Lasers. HUGHES AIRCRAFT CO. Nov. 23, 1965 [Dec. 17, 1964], No. 49757/65. Heading H1C. [Also in Division G2] A laser optical cavity comprises a partially transmitting reflector in which two layers of transparent material of the same thickness are separated by a layer of a medium of lower refractive index such as air, the thicknesses of the three layers being such that each layer has a plurality of resonances within the fluorescent line width of the laser output beam. The laser described, Fig. 1 (not shown), comprises a ruby rod 11 and a xenon flash tube 12 housed in a reflective enclosure 16, the optical cavity consisting of external reflections one being the partially transmitting reflector 10, Fig. 3, and the other a mirror or totally-internally-reflecting prism 17. The prism 17 may be rotated about a vertical axis to produce mechanical Q-switching. The partially transmitting reflector consists of two glass layers or plates 21, 22 which are spaced by a glass ring 23 having a pressurerelieving air duct 24, the assembly being clamped in an apertured housing 26 against an annular gasket 27 by a clamping ring 32 and screws 31. A suggested thickness for the glass plates and ring 21, 22, 23 is 0À25 inch, the dimensions being such that the plurality of resonances within the fluorescent line width for each layer is at least five and is preferably more than eight. Alternative materials for the plates are sapphire, quartz, zircon and mica.
Patent GB-1525440-A (GB)
Title: Valve assemblies for pressurised dispensers
IPC: B65D83/14
Filed: 1976-11-30
Abstract: 1525440 Dispensing liquids by gaseous pressure AEROSOL INVENTIONS & DEVELOPMENT SA 30 Nov 1976 [5 Dec 1975] 49789/76 Heading F1R In a valve assembly for a pressurized dispenser, a rigid valve member 4 having a piston 4b is movable in a valve body 5 between three positions, a closed position in which the valve-member seals the interior of the container against communication with the exterior, a dispensing position in which the valve member puts a dip tube 13 into communication with an outlet, and a filling position in which the piston 4b is displaced to uncover ports 20 in the valve body to put the region of the interior of the container adjacent to the valve assembly directly in communication with the outlet, the dispensing position lying between the closed and the filling positions and the valve-member being resiliently urged towards the closed position.
Patent GB-1451773-A (GB)
Title: Hydraulic control system
IPC: F04B49/00
Filed: 1973-10-25
Abstract: 1451773 Fluid-pressure servomotor systems CATERPILLAR TRACTOR CO 25 Oct 1973 49812/73 Heading G3P A hydraulic control system comprising a prime mover 11 driving a variable displacement pump 12 includes means to automatically adjust the pump displacement in dependence upon the prime mover speed to prevent overload and means providing a manual control. The pump 12 is arranged to provide maximum output at normal speed. Should the latter fall as a result of overloading of an implement motor supplied by the pump through line 15, then the speed of a fixed displacement pump 13 driven by prime mover 11 also falls thus reducing the flow in its output line 19, An underspeed valve 20 consequently transmits a pilot signal via lines 24, 25 to servomotor 18 to reduce displacement of pump 12. Line 19 is also connected to a manual pressure reducing valve 21 which when actuated transmits a pilot signal via lines 28, 25 to reduce displacement of pump 12 in dependence upon the degree of depression of foot or hand lever 27 and irrespective of the pump speed. The system also includes non-return valves 26, 29, pressure relief valve 30 and bleed orifice 31.
Patent GB-1449064-A (GB)
Title: Weft thread clamps suitable for use in conjunction with selvedge  tuck-in devices for looms
IPC: D03D47/48
Filed: 1973-10-29
Abstract: 1449064 Weft clamps SULZER BROS Ltd 29 Oct 1973 [3 Nov 1972] 50193/73 Heading D1E A selvedge weft clamp 41 is movable parallel and perpendicular to the direction of cloth advance and is adjustably positionable in these two directions. The clamp jaw 113 is operable by a lever 92 and the clamp is perpendicularly movable by a cam 32, follower 45 and lever 43 pivoted at 40 and is movable in the cloth advance direction by a cam driven lever 35. The connection between the lever 35 and the link 37 driving the clamp 4 is provided with engaging teeth 101 so that the links 37 may move up and down the lever 35 to provide the perpendicular adjustment and may be movable sideways, to engage different teeth to provide the clothwise adjustment. The teeth may, alternatively be clothwise aligned or provided at a position 115 on the link 37.
Patent GB-1105736-A (GB)
Title: Improvements in transistorized regulators
IPC: H01L25/03
Filed: 1966-11-10
Abstract: 1,105,736. Housings for electrical equipment. ROBERT BOSCH G.m.b.H. 10 Nov., 1966 [21 Jan., 1966], No. 50416/66. Heading H1R. [Also in Division H2] A housing for a transistorized regulator for the electrical equipment of a motor vehicle comprises a lower section 1, containing the regulator components 2, and a cover 5 screwed to lower section 1 and formed with a recess 6 having a base 7 with slots 8 through which terminal lugs 3 from the components 2 perpendicularly extend. Preferably the recess 6 is of T-section and cooperates with a complementary socket connector. The cover 5, or the base 7 of recess 6, is of insulating material, or the lugs 3 are separately insulated.
Patent GB-1095636-A (GB)
Title: Improvements in or relating to devices for tethering animals
IPC: A01K1/04
Filed: 1964-11-30
Abstract: 1,095,636. Animal-tethering stakes. J. B. BLAKE. Sept. 9, 1966 [Nov. 30, 1965], No. 50695/65. Heading E1B. A folding stake having a split ring 5 for tethering gun dogs comprises upper and lower parts 2, 3 interconnected by a hinge plate 14. The stake is locked when extended by sliding a sleeve 13 over the hinge. A protective socket (not shown) may be provided for the part 3.
Patent GB-1513988-A (GB)
Title: Dental composition
IPC: A61K6/847
Filed: 1976-12-06
Abstract: 1513988 Compositions for dental amalgamation ENGELHARD MINERALS & CHEMICALS CORP 6 Dec 1976 [29 Dec 1975 (3)] 50720/76 Heading C7A A composition for forming a dental amalgam with mercury has a major proportion by weight of spheroidal particles of a first alloy and a minor proportion of irregular particles of a second alloy, this particle size being within the range 1 to 100Á. The first and second alloys are preferable silverbased and may be of the same composition.
Patent GB-1243760-A (GB)
Title: Improvements in or relating to electric impulsing devices
Inventor: FAWLK PETER ALAN
IPC: H04M1/34
Filed: 1967-09-29
Abstract: 1,243,760. Impulse transmitters. GENERAL ELECTRIC CO. Ltd. 30 Sept., 1968 [29 Sept., 1967], No. 50833/70. Divided out of 1,236,569. Heading H4K. The description is almost identical to that of Specification 1,236,569, but the claims relate to the provision of an arcuate portion (annular projection 35), on the impulse wheel 13, which projection has a ramp 37 which separates contact 4] on contact spring 29 from contact 40 on spring 39 in the normal position of the impulse wheel.
Patent GB-1384436-A (GB)
Title: Device for agitating and pumping liquids
IPC: B01F7/16
Filed: 1972-11-03
Abstract: 1384436 Mixing apparatus YUEN SE-KIT 3 Nov 1972 50837/72 Heading B1C A device for agitating and pumping a liquid comprises an impeller chamber 64 adapted to be immersed in the liquid, and having a liquid inlet 69, a rotary impeller in the chamber, and a tube 24 for passage of liquid from the chamber, a part of the wall of the chamber 64 being movable between a first position in which rotation of the impeller can throw liquid from within the chamber through at least one aperture 66 in the wall to agitate the liquid, and a second position in which the liquid is pumped through an outlet from the chamber into the tube 24, the movable part of the wall being resiliently biassed to one of the two. positions. The movable part of the chamber wall comprises a cup shaped member 70 disposed at the lower end of a tubular member 62 which is slidably disposed in the outlet tube 24 for the device and the drive shaft 20 for the impeller passes coaxially through the tubes 24, 62. In the upper position of the movable wall member 70, to which it is biassed by spring 60, apertures 66 are uncovered and the entry to a discharge tube 26, 28 is blocked by the tube 62; in its lower position, to which it can be moved by manual pressure on a push button 58 the apertures 66 are covered and an outlet hole 74 in tube member 62 communicates with discharge tube 26, 28 and thus allows the liquid to be pumped through a cut-away part in a chamber liner 72, into tube 24, and thus through hole 74 into the discharge tube 26, 28. The device may form part of a dispenser e.g. for beverages, being mounted in a cap 12 adapted to be screwed on to a jar 10. Batteries 42 mounted in the cap provide power for a drive motor 18 for the impeller, switch means 54 for actuating the motor being closed by initial movement of the push button 58. A funnel 44 allows for liquid to be introduced into the jar 10.