baber/WOPTO huggingface dataset:
Patent GB-1329584-A (GB)
Title: Single lens reflex camera having automatic exposure control system
IPC: G03B7/083
Filed: 1970-12-03
Abstract: 1329584 Camera exposure control systems KONISHIROKU PHOTO INDUSTRY CO Ltd 3 Dec 1970 [11 Dec 1969] 57557/70 Heading G2A An exposure control system for a single lens reflex camera has a photovoltaic element having a fast photo-electric response disposed behind a quick return mirror to control the exposure time, the camera aperture being reduced from its maximum-opened state to a preset aperture stop value simultaneously with causing the mirror to jump up so that photometry is carried out on the basis of the reduced aperture immediately prior to an exposure. The photovoltaic element is adapted to be retracted out of the optical path upon taking a photograph, e.g. it may be mounted on the opening curtain of a focal plane shutter. The output signal from the photovoltaic element is stored as a voltage upon a capacitor which is connected to the input of a field effect transistor having a high input impedance. The system eliminates any error there might be between the preset diaphragm value and that actually obtained.
Patent GB-1253988-A (GB)
Title: Landing gear shock strut
IPC: B64C25/00
Filed: 1968-12-04
Abstract: 1,253,988. Aircraft undercarriages. CLEVELAND PNEUMATIC TOOL CO. 4 Dec., 1968 [17 May, 1968], No. 57576/68. Heading B7G. [Also in Division F2] An aircraft weight check is made by using a pressure responsive device to measure the fluid pressure within a cylinder of an aircraft landing gear shock absorbing device. Errors due to vertical friction between the cylinder and its piston are removed by rotating the piston relative to the cylinder. An oscillatory rotation of the piston 11 relative to the cylinder 10 is produced by an hydraulic actuator 41 moving a lever 40 integral with a bolt 30, Fig. 2, so as to cause the bolt 30 to rotate within a locked threaded sleeve 34 in arm 25 and thereby laterally displacing a further arm 27 from arm 25. Arm 27 is connected to a bogie frame 12 and any movement will cause rotation of the piston 11. Thus a gradual settling of the weight reading on a pressure responsive instrument 46 will be observed as the vertical friction component is eliminated and the internal pressure in the cylinder balances the external load of the aircraft.  In a further embodiment, Fig. 3, not shown, the lateral displacement between arms 25 and 27 is achieved by replacing the locked threaded sleeve 34 and bolt 30 arrangement with a piston and a hollow cylinder which is angularly inclined with respect to the arms 25 and 27.
Patent GB-1397460-A (GB)
Title: Holder for an electric lamp
IPC: H01R33/96
Filed: 1972-12-21
Abstract: 1397460 Lampholders J E L GLANTZ 21 Dec 1972 [23 Feb 1972] 59098/72 Heading H2E A holder for a lamp having bottom and side contacts comprises a mounting 12, terminals 14 and 16, a side-contact spring 42, and spring-loaded contacts 26 and 40 isolated from terminals 14 and 16 upon withdrawal of the lamp. The contact rod 26 is urged away from the terminal 14 by a spring 28 based on an annular abutment 30 in an insulating plug 20. The rod 26 carries at its lower end an insulating disc 32 tiltably mounted and biased toward the flange 34 by a spring washer 36 trapped under a locking washer 38 attached to the rod 26. Insertion of the lamp drives down the rod 26 carrying the disc 32 and an attached peripheral contact ring 40 which, impelled by the spring washer 36, abuts and connects together the upper face of the terminal 16 and an upward face 41 of the contact spring 42. Further travel of the rod 26 causes it to abut and depress the terminal 14 against the opposition of a second spring washer 46.
Patent GB-1235797-A (GB)
Title: A cylinder lubricating system in an internal combustion engine
IPC: F01M1/08
Filed: 1969-12-04
Abstract: 1,235,797. Lubricating. SULZER BROS. Ltd. 4 Dec., 1969 [13 Dec., 1968], No. 59295/69. Heading F2A. The cylinder of an internal combustion engine is lubricated by means of a pump 7, Fig. 1, which forces lubricant to a hole 3 in a cylinder liner 2, via a line 6, an inclined bore 10 in the liner 2 and a device 5. The line 6 contains an accumulator which may be a resilient hose 20, Fig. 2, or a cylinder 41, Fig. 5, having a spring-biased piston 43 therein. The device 5 comprises a tube 13, Fig. 2, one end of which is attached to the outside of a cylinder block 1 by means of flanges 15, 16 and screws (not shown), and the other end of which enters a bore in the liner 2 and is selaed by a member 14. The tube 13 is cooled by means of water in a chamber 8 of the block 1 and contains a tube 17, one end of which is connected to the line 6 by means of a connection 19, and the other end of which is connected to the bore 10 by means of a screw-threaded portion 18 of the tube 17. The portion 18 contains a valve member 30, Fig. 3, the movement of which is limited by a stud 33 having a bore 32 therein. In use a metered amount of lubricant is supplied by the pump 7 to the hole 3 in the liner 2 and is permitted to pass through the hole 3 when the pressure in the liner cylinder is lower than the pressure of the lubricant. When the pressure in the liner cylinder is higher than the pressure of the lubricant, the valve member 30 is urged against its seat 31. Pressurized lubricant supplied by the pump 7, is stored in the accumulator 20, Fig. 2, or 41, Fig. 5, until the pressure in the liner cylinder drops below the pressure of the lubricant.
Patent GB-1300545-A (GB)
Title: Improvements in or relating to articles of plastics materials
Inventor: ORME JOHN EDWARD
IPC: E01F9/011
Filed: 1968-12-14
Abstract: 1300545 Road traffic posts JOHN ORME Ltd 13 March 1970 [14 Dec 1968] 59564/68 Heading E1G A road sign comprises a standard 12 formed by rotational moulding of plastics material and having an inwardly extending portion 52 secured to a base 10 by fastening means which allow separation of standard and base on impact of a vehicle. The standard, base and head 14 of the roadsign are all of moulded polyethylene. The base is secured to the ground by studs 36 through steel plate 32. A threaded polystyrene member 60 fastens the base and standard together and carries a spacer 62. The standard and head are connected by nylon bolts 108. In Fig. 5 (not shown) the standard is connected to base and head by clips (176, 240) of polyamide. A traffic bollard is formed with translucent sides and is internally lighted.
Patent GB-1336179-A (GB)
Title: Tree harvesting method and apparatus
IPC: A01G23/085
Filed: 1970-12-21
Abstract: 1336179 Tree felling EATON YALE & TOWNE Inc 21 Dec 1970 [29 Dec 1969] 60451/70 Heading A1E [Also in Division B5] A method of harvesting trees comprises gripping a standing tree 62, Fig. 2, with a clamp assembly 46, severing the standing tree, positioning the tree for delimbing by moving it with the clamp assembly and delimbing the tree by effecting relative movement between it and a delimbing mechanism 50. Apparatus described for performing the method is in the form of a vehicle 30 having mounted on its roof a pair of telescopic booms 40, 42. The boom 40 carries the clamp assembly 46 and a shear assembly 48, and the boom 42 carries the delimbing mechanism 50 and a tree topping assembly 52. In operation, the booms 40, 42 are swung to the position shown in Fig. 2, and the assembly 46 is pivoted relative to the boom 40 to grasp the tree between its jaws 86, 88. The sheer assembly 48 is then operated so that cooperating blades 100, 102 thereof sever the tree adjacent the ground. The booms are then swung to the horizontal position, Fig. 1, and the clamp assembly 46 pivoted by a cylinder 82 to locate the tree parallel to the axis of the boom 42. The delimbing mechanism 50 is mounted on the innermost telescopic section of the boom 42 and includes a pair of arms 126, 128, Fig. 15, which have knife edges for severing limbs from the tree and are normally biassed towards the tree trunk. However, when the boom 42 is fully retracted, a member 186, Fig. 1, removes the bias to allow the arms to separate and receive the tree trunk between them. The tree is positioned in the position shown in Fig. 1, by rotating the boom 40 about its own axis. The boom 42 is then extended to cause the mechanism 50 to delimb the tree trunk. As the mechanism moves up the tree, the arms 126, 128 move inwardly as the diameter decreases until at a predetermined minimum diameter, a pin 344, Fig. 15, carried by one of the arms, is disengaged from a blade 310 of the topping assembly 52. The blade 310 and a co-operating blade 312 are inwardly biassed so that as the boom 41 is further extended they top the tree, Fig. 17. The boom 42 is then retracted and the log produced is positioned between the jaws of a bunk assembly 56 (see Specification 1336180 divided from this Specification). In a second embodiment, the topping mechanism is arranged to operate during the last portion of the extension of the boom 42 even if at this stage the diameter of the tree has not decreased to the predetermined minimum value.
Patent GB-1186492-A (GB)
Title: Door Positioning Hinge
IPC: D06F37/28
Filed: 1968-12-19
Abstract: 1,186,492. Door positioning hinge; stays. ILLINOIS TOOL WORKS Inc. 19 Dec., 1968 [12 Feb., 1968], No. 60476/68. Heading E2F. A hinge suitable for use with a drop-down door comprises a first hinge plate 14, with a flange 30 for attaching the plate to the door frame, which is pivoted by a pivot pin 18 to a second plate 16 which is attached to the door by means of a flange 34. The plate 14 is formed with a lug 28 which slides in the arc-shaped slot 26 in the plate 16. A strip of yieldable material 20 is attached to the second plate 16 with rivets 22 and 24 so that the lower edge of the strip slides along the surface of the lug. The strip may contain recesses in which the lug interlocks, holding the door in a semi-open position.
Patent GB-1336850-A (GB)
Title: Process and apparatus for coating a tube of fibre material with viscose by extrusion
IPC: B29C48/151
Filed: 1970-12-23
Abstract: 1336850 Coating tubes KALLE AG 23 Dec 1970 [27 Dec 1969] 61101/70 Heading D1L [Also in Division B2] Apparatus for coating the inside and outside surface of a fibre tube 9 comprises an inner annular die 1i, 2i and an outer annular die 1a, 2a which extrude viscose on to the tube the outer layer of the tube being coated first and the gap between the faces of the dies forming a passageway, through which the tube passes during coating, having a width in the range 0.3 to 1.0 mm and a given point on the inner surface being coated .003 to 0.3 seconds after coating the corresponding point on the outer surface.
Patent GB-689637-A (GB)
Abstract: 689,637. Stove fronts. LANE & GIRVAN, Ltd., and McINTOSH, J. A. April 10, 1951 [May 4, 1950], No. 11012/50. Class 126 In a solid fuel burning domestic appliance wherein the front a of the firebox is closed down to the hearth a rectangular primary air opening b is positioned in the front below the grate proper and a door g for said opening is removably and hingedly supported on its lower edge by means of supporting lugs h the door having closing and opening means comprising a finged piece k secured to a spindle j extending through the door, a finger m fast on said spindle, and a cam face e and stop f projecting inwardly from the rear face of the appliance, said finger m, when rotated, co-operating with the cam face e to open and close the door, the finger m abutting against the stop f when the door is fully open.
Patent GB-746950-A (GB)
Abstract: 746,950. Cash registers. PREMIER CASH REGISTERS, Ltd. Jan. 8, 1954 [Jan. 9, 1953], No. 690/53. Class 106 (1). An autographic device in a cash register has a shutter which is operated to cover the auto. graphic strip on actuation of an insertible key. The strip 14 passes from a supply roll 15 over a table 16 to a take-up roll 17, all of which are mounted on a bracket 22 rigid with a cover-plate 10. After recording autographically the total amount of cash received, the operator actuates a lock by means of an insertible key to release a further cover-plate so that the totalizer may be read. At the same time an arm 32 rocked by the lock depresses a slide 28 carrying a shutter 31, which moves under the writing aperture 13, and a feed pawl 26 which advances the take-up spool to linespace the strip. The lock may also rock an arm 37 to lock the amount keys. Teeth 38 in the slide co-operate with a pawl 39 to ensure a full stroke of the slide. The autographic device may be removed as a unit on actuation of a further lock. Specification 746,945 is referred to.
Patent GB-2001403-A (GB)
Title: Master cylinder and actuator assemblies
IPC: B60T13/58
Filed: 1978-07-19
Abstract: The invention relates to master cylinder and actuator assemblies in which a push rod (5) connected to the actuator (2) extends forwardly through a vehicle mounting member (3) and is engageable at its forward end with a piston (9), there normally being a clearance between the push rod and the piston in their inoperative positions. Such assemblies suffer from the disadvantage that a desired working clearance is difficult to attain due to manufacturing tolerances. Embodiments of the present invention overcome that disadvantage and provide an assembly which includes a lateral projection (10) on the push rod (5), which projection limits rearward movement of the push rod relative to the mounting member (3). <IMAGE>
Patent GB-2323681-A (GB)
Title: Combined laser system and infra-red imaging system
Inventor: CAMERON EVAN STUART
IPC: G02B13/14
Filed: 1978-11-24
Abstract: A laser transmitting and/or receiving system, for example, a surveillance aid employing a laser beam 40 of radiation of a wavelength within the range 0.5 to 7.5 micrometres, and an infra-red imaging system employing radiation of wavelengths within the range 7.5 to 14 micrometres, have a common optical system comprising a telescope having an objective and an eyepiece 10 and 11, substantially free from aberration for the infra-red radiation causing the display.
Patent GB-2014076-A (GB)
Title: Method of boring a hole through a magnet made of an intermetallic compound
IPC: B23K26/38
Filed: 1978-12-27
Abstract: A method of boring a hole through a magnet made of an intermetallic compound, characterized in that the hole is formed by a laser machining. The magnet may be reinforced by impregnation with a nonmagnetic material such as a high polymeric substance or a metal having a low melting point before the hole is bored through the magnet by laser machining.
Patent GB-2014980-A (GB)
Title: Calibrating glass tube sections
IPC: C03B23/049
Filed: 1979-02-21
Abstract: The invention relates to a calibration technique in which a glass tube section is heated to a softening temperature, is reshaped to a required dimension and is then allowed to cool. According to the invention the tube section 3 is gripped by rotatable clamps 1 and heated by a device 2. A shaping member 6 is then used to press the softened glass against a calibration surface 4. The surface 4 and member 6 can be moved axially while the tube section 3 is rotated by the clamps 1 so that the surface 4 and member 6 move spirally or helically with respect to the glass. If external calibration is required, the shaping member can be arranged inside the tube section with the calibration surface outside the tube section. The invention makes it possible to calibrate, with acceptable tolerances, glass tube sections having larger diameters than the maximum diameters which can be accurately calibrated using existing methods and equipment. <IMAGE>
Patent GB-2047005-A (GB)
Title: Apparatus for magnetising and demagnetising objects
IPC: H01F13/00
Filed: 1979-04-10
Abstract: Apparatus for magnetising and demagnetising objects, comprises a housing (8,10,14), a magnetiser switch (16), a demagnetiser switch (18) and a hollow centre coil (20) for receiving therein the objects to be magnetised and demagnetised, the hollow centre coil means being housed in the housing and the housing being apertured to allow access to the hollow centre coil means. Two coils may be provided, one for magnetising and the other for demagnetising. A protected circuit is disclosed for supplying d.c. or a.c. to the coil(s). <IMAGE>
Patent GB-2022276-A (GB)
Title: Reprography materials containing silicon or phosphorus derivatives of 2,3- dihydroxy-naphthalene
IPC: B41M5/333
Filed: 1979-05-25
Abstract: Recording or reproduction material useful in reprography comprises a sensitive layer comprising a chromogenous compound which can react with a phenol derivative and a complex product capable of being decomposed to give a phenol derivative which can react with the said chromogenous compound to form a coloured image the said complex product being an organophosphorus or organosilicon derivative of 2,3-dihydroxynaphthalene.
Patent GB-2026977-A (GB)
Title: Improvements in or relating to beer kegs
IPC: B65D25/02
Filed: 1979-06-28
Abstract: A beer keg having a body with opposed end walls comprises a cleaning, filling and tapping-off lance 9 mounted in one end wall and extending through the body with its free end in the vicinity of end wall 3, a nozzle 10 on said free end of the lance directing cleaning fluid along path I via opening 12 and over the outer surface of the lance along path II via gaps between mounting legs 14 and skirt 13. Preferably nozzle 10 is axially slidable on the lance and may be moved by pressure of the cleaning fluid. <IMAGE>
Patent GB-2028945-A (GB)
Title: A Socket Connection
IPC: A47L9/24
Filed: 1979-07-05
Abstract: A socket connection, of the type comprising a sleeve (2) located between inner (1) and outer (5) tube ends (24, 6) and suitable for a vacuum cleaner suction hose, is provided in which the inner tube (1) has substantially the same internal diameter as the outer tube (5) except in the region of latter's widened end section (6) and the tubes (1, 5) are detachably connected by at least one securing pin (11). The outer tube (5) surrounds the sleeve (2), which in turn surrounds the inner tube (1), the sleeve (2) having lengthwise extending inner (27) and outer (14) projections peripherally spaced therein which contact the inner (1) and outer (5) tubes respectively. The greatest diameter of the sleeve (2) is larger than the inner diameter of the outer tube end section (6) so as to be resiliently retained therein. The sleeve (2) is permanently retained on the inner tube (1) by retaining parts (3). The outer tube (5) has an outwardly belled end (7) with its edge (8) turned inwardly for rigidity. The sleeve (2) has a radially extending flange (9) which seals within the belled end (7). The dome-ended securing pin (11) is urged outwardly through aligned holes (20, 21, 22, 22') in the inner tube (1), the sleeve (2) and the outer tube (5) respectively by a spring ring (18) within the inner tube (1). <IMAGE>
Patent GB-2028861-A (GB)
Title: Use of Microwave Energy in Manufacture of Grinding Products
IPC: B24D18/00
Filed: 1979-07-17
Abstract: In the manufacture of grinding wheels or other grinding products of either the vitrified or organic type, the heat treatment for drying and/or firing or curing respectively is provided by microwave energy. It is possible to include a steel or other metallic reinforcing ring in a grinding wheel without it being damaged or destroyed during firing.
Patent GB-2026990-A (GB)
Title: Severing Device to Protect Machines Handling Continuously Moving Webs
IPC: B65H77/00
Filed: 1979-08-02
Abstract: A severing device to protect a machine against excessively high tensile forces in a web (1) running therethrough is (preferably) located near to a take-up reel (16) of a web winding machine and comprises a web guide roller (3) displaceable pivotally by tensile forces in the web and biassing means, such as air-spring bellows (6), to prevent displacement of the guide roller (3) by a tensile force below a predetermined value. At least one bell crank lever arm (7) is articulated to the guide roller (3), and one or a respective number of knives (9) are carried by the or each of the bellcrank lever arms (8) to cut the web when the tensile force therein exceeds the predetermined value. <IMAGE>
Patent GB-2031902-A (GB)
Title: Foamed phenolic resins
IPC: C08J9/00
Filed: 1979-09-13
Abstract: Foamed resinous products having excellent fire resistance, high thermal insulation and good resistance to heat are obtained at temperatures as low as room temperature and without the need for an added blowing agent by forming a mixture of a phenolic resole having a specified reactivity, an acid hardener for the resole and, uniformly dispersed through the mixture of resole and hardener, at least 5% by weight of a finely divided inert and insoluble particulate solid; products capable of being employed as wood-substitutes are obtained when a dihydric compound is included in the mixture and the solid is talc, fly ash and/or a hydraulic cement.
Patent GB-2032312-A (GB)
Title: Jammed press release apparatus
IPC: B30B15/00
Filed: 1979-10-02
Abstract: In a press, the driving force is transmitted from a connecting rod (17) to a slide via a body (26) of low-melting point alloy. This body is disposed in a chamber (20) which communicates with a space into which material of the fused body can flow to release a jammed press. One boundary of the space is defined by a slidable piston (30) which can be used to force the molten alloy back into the chamber when the jam has been cleared. The piston may be driven by a screw or pneumatically. <IMAGE>
Patent GB-2032632-A (GB)
Title: Balance beam and weight arrangement
IPC: G01G1/38
Filed: 1979-10-31
Abstract: A balance weight 22 can be moved along a pivotable balance beam 31, 32, the beam and weight being constructed for rolling movement of the weight along the beam. The beam is formed by a frame within which a rotatable lead screw 15 is journalled for rotation about its axis, said rotation driving the weight along the frame. The lead screw and the balance weight are connected by biassing means formed by a leaf spring 44, the arrangement being such as to prevent or limit backlash between the screw and the weight. <IMAGE>
Patent GB-2036443-A (GB)
Title: Liquid Metal Switch
IPC: H01H33/00
Filed: 1979-11-21
Abstract: A high-current liquid metal switch in which one contact 2x8 is entirely fixed and is in the form of an upper plate 2 while the other contact has a fixed part 1 in the form of a similar plate but having a cylindrical hole containing a movable contact member 18 immersed in a liquid metal. The contact member 18 is sealed to the surrounding fixed part 1 by means of a flexible bellows 13 which contains the liquid metal and allows the contact member 18 to be driven upwards carrying the liquid metal with it. Contact is first made between the liquid metal and the upper fixed contact 8 and then the movable contact member 18 continues upwards through the liquid metal to make solid contact. The contact construction is of a very simple sandwich form, the liquid metal and a ceramic spacer 3 being sandwiched between the contact part 1 and plate 2. <IMAGE>