baber/WOPTO huggingface dataset:
Patent GB-1453946-A (GB)
Title: Single-lens reflex cameras
IPC: G03B7/083
Filed: 1973-12-27
Abstract: 1453946 Reflex cameras ASAHI KOGAKU KOGYO KK 27 Dec 1973 [30 Dec 1972 (2)] 59743/73 Heading G2A In a reflex camera a mirror can be moved from its reflex to its exposure position either by the shutter release or independently by manual means, and in the latter case a switch is actuated which acts to store a signal representative of the measured incident light. As shown, when the power switch 2 is closed, the resistance of the light-receiving photo-conductor element 4 is compressed from non-linear to a linear variation. The output from element 4 is in series with a memory capacitor 8, a manual memory switch 6 and an automatic memory switch 7. When a shutter release is depressed, switch 7 is opened, so that the light input information at that moment is stored in capacitor 8. At the same time lever 20 is pivoted anticlockwise, which pivots lever 26 clockwise. This engages with a pin 29 fixed to the mirror mount 28, and so pivots the mirror into its "up" or exposure position. At the same time a pin 31 on lever 26 engages and pivots a lever 32 so that it strikes a lever 33 to initiate the shutter movement. The mirror can also be raised manually by means of a lever (34), Fig. 3 (not shown) which can be actuated externally of the camera. This moves a cam (35) to which is fixed a pin 36. Pin 36 moves downwards to engage and pivot a lever 37 clockwise, the other end of the layer engaging pin 29 to lift the mirror as before.
Patent GB-1224328-A (GB)
Title: Pivot connection and window incorporating the same
IPC: E05D7/08
Filed: 1968-12-19
Abstract: 1,224,328. Window holders. SAMSON WINDOW CORP. 19 Dec., 1968 [9 Jan., 1968], No. 60398/68. Heading E2A. A pivot connection for pivotably mounting a window sash in a frame comprises a track portion 42, 43 for attachment to the frame, a plunger 27 for mounting on the sash 11 and arranged to be urged yieldably into contact with the track portion 42, 43, a lateral cam  portion 33. on the plunger 27, a seat on the track portion to receive the plunger when  the sash is pivoted from a closed position, to a partially open position, a cam follower on  the track portion positioned to engage the cam portion 33 to deflect the plunger from the seat when the sash is pivoted from the partially open position to the closed position, a plunger release 50 for movable mounting on the frame and operating means for tilting the plunger release member to engage the plunger and move the plunger from its seat to enable further opening movement of the sash. As shown, the plunger 27 engages an opening defined by walls 48, 49 of a slot in the track 42, 43 as the sash is moved to a partially opened position. The plunger is retracted from the slot by movement of the sash to the closed position or by operation of the plunger release 50 by an outer handle 58 or an inner key-operated member 63 which tilts the release 50 to permit further opening of the sash to a position in which the plunger 27 engages another slot defined by walls 46, 47.
Patent GB-1327260-A (GB)
Title: Copper base alloys
IPC: C22C9/00
Filed: 1970-12-22
Abstract: 1327260 Treating copper-base alloy OLIN CORP 22 Dec 1970 [9 Feb 1970 17 July 1970 19 Aug 1970] 60898/70 Heading C7A A copper-base alloy having Mn 8-16%, Zn in amount (K-2/3 Mn) where K is 30À5-36À25 (i. e. Zn is 19-31%, Pb 0-3%, Ni 0-0À5%, and the following in amount 0 to less than 0À5%: Al, Fe, Sn, Si, Co, Mg, Mo, P, As, Sb, is cast below 1000‹C., hot rolled starting below 850‹C. and finally cold rolled. Preferred conditions are casting above 870‹C. (e.g. 925-975), hot rolling starting at 700-800‹C. (e.g. 725-775), annealing (after cold rolling) for at least 15 min at 400- 800‹C., and then cooling to room temperature at more than 25‹C. per hour, thereby obtaining an alloy having substantially all alpha phase. In the case of a lead-containing alloy initially having 10-60% beta phase the hot rolling may start at 700- 850‹C. (e.g. 740-820). Preferred alloys used contain (1) Mn 10-16% and K 32-35, i.e. Zn is 22-29%, and (2) Pb 1-3% (e.g. 1À3-2À3), Mn 8-16% (e.g. 11-14), Zn 20-31% (e.g. 21-29) the Pb being present as not more than 20% beta phase.
Patent GB-1325189-A (GB)
Title: Apparatus for the adjustment of type carriers in power- driven typewriters or similar machines
IPC: B41J7/60
Filed: 1970-12-31
Abstract: 1325189 Typewriters TRIUMPH WEBKE NURNBERG AG 31 Dec 1970 [31 Dec 1969] 61965/70 Heading B6F Type selection mechanism for a print head 1, Fig. 1, having type characters in rows and columns, comprises a pair of rocket arms 28, 29, Fig. 2, which pivot in directions B, C for each key depression, the rocker arms 28, 29 carrying slides such as 38À3 which coact with crank levers 13, 20, Fig. 1, to effect displacement of the print head 1 to the extent required by the key depressed. The crank levers 13, 20 are spring biased anti-clockwise and on pivoting of the rocker arms 28, 29 are either permitted to rotate anticlockwise to an extent determined by a slide on rocker arm 28 or urged clockwise by a slide on rocket arm 29, depending on the slides displaced. Each key acts on a bail (60, Fig. 2B, not shown) respectively connected to a lever 55 for crank lever 13 and a bail (78, 79 or 80, Fig. 4, not shown) respectively connected to a lever 85, 86 or 87 for crank lever 20, the levers 55, 85, 86, 87 operating the slides. The pivotal movement of crank lever 13 causes rotational movement of head 1 through a cable 8, Fig. 1, and crank lever 20 causes tilting of head 1 through a lever 27. For zero rotation of the head 1, the crank lever 13 is held in initial position by an additional stop (91, Fig. 5, not shown). A fixed stop 33 on rocker arm 28 arrests the crank levers 13, 20 after maximum anti-clockwise rotation.
Patent GB-1360619-A (GB)
Title: Apparatus for testing beams of light
IPC: G01M11/06
Filed: 1972-03-30
Abstract: 1360619 Beam tester LESLIE HARTRIDGE Ltd 30 March 1972 [31 Dec 1970] 61990/70 Heading G2J A head-light beam tester has a lens 22 projecting an image on to a screen 26 via a mirror 24, the latter being adjustable about perpendicular axes and the acceptability of the head-light setting can be evaluated either by a photo-cell 42 or by an overlay on the screen 26. Instructions for the initial aligning of the apparatus are given.
Patent GB-1249679-A (GB)
Title: Organotin compounds
IPC: C07F7/22
Filed: 1968-12-31
Abstract: 1,249,679. Dioctyl tin salts of dicarboxylic acids. M & T INTERNATIONAL N.V. 31 Dec., 1968 [2 Jan., 1968], No. 61992/68. Heading C2J. Free flowing dioctyl tin salts of dicarboxylic acids, characterized by an off-white to cream colour, a superficially crystalline structure and the presence of orthorhombic prism or hexagonal prism crystal structure, are claimed per se. They are prepared by reacting substantially stoichiometric amounts of dioctyltin oxide and a dicarboxylic acid or anhydride in the presence of an inert aliphatic hydrocarbon solvent, being such a solvent from which the dioctyltindicarboxylate may be crystallized on cooling. The solvent may have 5-16 preferably 6-8 carbon atoms and in preferably straight chained, and has a boiling point less than 150 C., and may be an 180 paraffinic hydrocarbon. The most preferred solvent is heptane. The reaction is carried out under reflux at between 60 and 130 C., and then cooled to 15-40 C. whence the product may be recovered. The ratio of solvent to product is maintained between 0À55 : 1 and 2:1. Maleic acid or maleic anhydride are the preferred reagents. The compounds di-n-octyl tin maleate, di-n-octyl tin adipate and di-n-octyl tin succinate are claimed per se.
Patent GB-1191132-A (GB)
Title: Electrical Circuits for Temperature Stabilisation of an Impedance Element
Inventor: ABE ZENMON
IPC: G05D23/20
Filed: 1967-04-24
Abstract: 1,191,132. Automatic temperature control systems. HITACHI SEISAKUSHO K. K. April 24, 1967 [April 27, 1966], No.62482/69. Divided out of 1,191,131. Heading G3R. The Specification describes and claims the self-regulating heating circuit for a ferro-electric capacitor or ferro-magnetic inductor which forms a part of the disclosure of Specification 1,191,131.
Patent GB-630965-A (GB)
Abstract: 630,965. Photographic cameras. HELM, C. H. June 12, 1946, No. 17654. Convention date, Sept. 17, 1942. [Class 98 (i)] In a camera in which the image is formed by a concave mirror, and which has a picture frame and a spherical film support, the picture frame substantially conforms to the spherical surface and is formed to make contact with it in a narrow marginal area enclosing the picture field. As shown, a camera has a body 3 with a concave spherical mirror 2 at one end, a Schmidt correcting plate 1 at the other. A frame 5 on supports 4 forms the picture gate. The magazine 6, detachably connected to the supports 4, contains a film strip 9 which passes from a supply spool 7 over a spherical support 10 to a take-up spool 8. The frame 5 may have a narrow pressure edge, or the support may be just greater than the aperture. Initially the support 10 is not tight against the frame 10. Compressed air is supplied through a tube 16 to a cylinder 15, actuating a piston carrying a rack 17, which turns a pinion 18 geared to the winding spool 8. At the end of its travel the piston uncovers a port, allowing the air to pass through a tube 14 to a cylinder 13 whose piston, through a lever system, presses the support 10 against the frame 5. The shutter (not shown) may be actuated by a connected mechanism, and may be, e.g., a roller blind shutter placed just behind the plate 1. In an alternative construction the film support is stationary and the frame is movable, or both are movable.
Patent GB-727697-A (GB)
Abstract: 727,697. Drafting textile fibres. HILATURAS IBERICAS SOC. ANON. Dec. 19, 1952 [March 17, 1952], No. 32202/52. Class 120(2). A drafting mechanism for spinning machines includes a group of three feed rollers comprising two lower positively driven rollers 24, 25 and a large self-weighted upper roller 26, a similar group of three intermediate rollers 20, 21, 23 and a roller stand 10 supporting a pair of delivery rollers 13, 14, the supports 17, 18 for the groups of feed and intermediate rollers being slidably mounted on the stand 10 for adjustment by screw-threaded pins 44, 45. Both pins 44, 45 pass through apertures in the front arm 11 of the stand 10, the upper pin 44 turning in a screw-threaded aperture and abutting against the support 17. The lower pin 45 passes freely through the arm 11 and the support 17 into a screw-threaded bore in the support 18 and is held against axial movement by a roller 51. In order to support upper rollers 14, 23 and a small intermediate roller 37, a cap bar 30 is provided that extends between roller stands and carries arms 32 into which pins 34 are fixed to support roller bearing blocks 35, 36. Intermediate pressure rollers 23 may consist of a solid shaft provided with cylindrical end members carrying covers of leather, rubber, cork or a synthetic resin. Their surfaces may be smooth or fluted. Specification 674,142 is referred to.
Patent GB-2029306-A (GB)
Title: A method of making an ultrasonic transducer
IPC: B06B1/06
Filed: 1978-09-08
Abstract: A wafer (4) of lead zirconate titanate (piezo-electric material) having silver face coatings is heat and pressure bonded, under vacuum, to a nickel diaphragm (1) with the interposition of lead, and the wafer of lead zirconate titanate is slidably rotated relative to the surface of the diaphragm during the bonding process to effect an improved bond. The wafer is pressed and rotated by a shaft "S" about the lower end of which R.F. induction heating coils are disposed. The bonding produces a lead/silver eutectic alloy. <IMAGE>
Patent GB-2007830-A (GB)
Title: Flare stack tip
IPC: F23G7/08
Filed: 1978-10-19
Abstract: A flare stack tip comprises inner and outer coaxial tubular members 10, 11 defining an annular nozzle, gas to be burnt being introduced between the members and flowing through the nozzle in a tubular stream to act as an ejector and induce air to mix with the gas on the inner and outer surfaces of the stream. <IMAGE>
Patent GB-2007636-A (GB)
Title: Solid Silicate Foams
IPC: C04B28/26
Filed: 1978-11-16
Abstract: Compositions for the production of solid silicate foams contain an alkali metal silicate, a zinc silicofluoride- magnesium silicofluoride hardening agent, a foaming agent, and water. The compositions may contain particulate or fibrous material as fillers.
Patent GB-2034268-A (GB)
Title: Conveyor System
IPC: B65G43/00
Filed: 1978-11-16
Abstract: A conveyor system, having a circulating conveyor 1 and at least one drive member 5, and preferably a number spaced along its length for driving it along; there are means for de-energising the drive to the, or to all the drive members 5 when the reaction of the conveyor 1 is excessive, the drive member 5 preferably being a rotary drive member which is mounted for limited translatory motion parallel to the conveyor 1 and biased so that it moves against its biasing if the reaction is excessive, to discontinue the drive; there are preferably means 17 for indicating, when the drive is de- energised, upon which drive member 5 the reaction was excessive. <IMAGE>
Patent GB-2011826-A (GB)
Title: Carbon Fiber-Reinforced Cement Mould
IPC: E04C5/07
Filed: 1979-01-04
Abstract: A carbon fiber-reinforced mould, comprises from 1 part by weight to 6 parts by weight of carbon fibers per 100 parts by weight of the cement and any aggregate filler present. The mould is particularly suitable for casting or forming plastics articles which require heating up to 200 DEG C to effect curing.
Patent GB-2041093-A (GB)
Title: A combustion product plant for converting thermal energy into mechanical energy
IPC: F02G3/00
Filed: 1979-02-22
Abstract: An oxidizing gas is compressed in a positive-displacement compressor 1 driven by an expansion machine 9. Into the compressor is injected a sealing and/or lubricating auxiliary liquid 10 which is continuously cooled by a water spray in chamber 5, separated from the compressed gas and collected in chamber 6, then re-injected into the compressor. The coding of the auxiliary liquid vaporises the water and the steam produced is entrained in the stream of compressed oxidizing gas and fed to combustion chamber 7, into which fuel is discharged from injector 8. The combustion products are expanded in machine 9 and then cooled in heat exchanger 19 to a temperature such that the amount of steam remaining in the gases is equal to that produced by combustion of the fuel. The condensate is collected in tank 13 and recirculated by pump 14 to spray chamber 5. <IMAGE>
Patent GB-2023916-A (GB)
Title: A graphite-resin composite electrode structure, and a process for its manufacture
IPC: H01M4/86
Filed: 1979-05-18
Abstract: A composite graphite-resin porous electrode structure is made by intimately mixing powdered graphite with the resin monomers and partially polymerising and grinding the mixture before forming a moulding composition by adding a pore-forming agent removable by decomposition or leaching to form uniformly-sized pores. A catalyst for the electrode reaction is incorporated in the electrode with the pore-forming agent or in a thin layer during moulding and an electrically- conductive strengthening element which acts as a rheophore is also incorporated during moulding. Layers having different pore sizes may be formed and a water-repellent film is applied to one face of the electrode.
Patent GB-2032480-A (GB)
Title: Improvements in or Relating to Mixtures of Optical Brighteners
IPC: D06L3/12
Filed: 1979-09-13
Abstract: A mixture of optical brighteners has synergistic effect and consists of 98 to 50% of a mixture of 0.05 to 0.95 part of a compound   <IMAGE>  and 0.95 to 0.05 part of a compound   <IMAGE> and 2 to 50% of a compound   <IMAGE> wherein  X is oxygen or sulphur R<1> and R<2> are H, F, Cl, phenyl, alkyl, alkoxy, dialkylamino, trialkylammonium, acylamino or a free or functionally modified carboxy or sulpho group, or R<1> and R<2> complete a fused benzene ring, or form lower alkylene or 1,3-dioxapropylene, A is cyano, an ester or amide group,   <IMAGE> in which R<4> is unsubstituted or substituted alkyl,  -(CH2CH2O)n-R  or  -(CH2)m-CH=CH-R in which n is 1 to 3, m is 0 to 5 and R represents H, alkyl, alkylthioalkyl, or di-substituted aminoalkyl, or R<4> is unsubstituted, mono- or di-substituted phenyl, B represents an unsubstituted or substituted polycyclic aromatic radical having at least three condensed rings, C represents mono- or di-substituted amino, pyrrolidino, piperidino, piperazino or morpholino, alkoxy, hydroxyalkyl, hydroxy-alkoxy, acyloxy, alkylthio or alkylcarbonylthio; and D has the meaning given for C or represents chlorine.
Patent GB-2032225-A (GB)
Title: Control Device in an Automatic Telephone Answering Apparatus
IPC: H04M1/65
Filed: 1979-09-26
Abstract: A control device in an automatic telephone answering apparatus having dual recording media, and several operating modes selected by tone markers activating a control circuit including a microcomputer. A first recording medium 1 contains a first call answering text 2, 3 without a request to speak and a second call answering text 4, 5 and 6 with a request to speak. Tone markers 7, 8, 9, 10, 11 and 12 of predetermined frequencies, on both texts are differently spaced to cause the microcomputer to assume a respective control state for reproduction or recording in response to the detected tone markers. A recording detector is used to determine the reaching of the capacity limit of a second recording medium which records incoming conversation. In response to a signal from the recording detector, the microcomputer returns the first recording medium to the beginning of the answering text without a request to speak. <IMAGE>
Patent GB-2062668-A (GB)
Title: Olefin production
IPC: C10G1/06
Filed: 1979-11-09
Abstract: Olefins and liquid mononuclear aromatic hydrocarbons (BTX) can be produced by catalytically hydrogenating a cut of a coal-drived oil which has a major proportion of naphthenes to a product which is substantially completely saturated, optionally stripping the product of light ends then cracking the product to yield olefins and mononuclear aromatics. Yields similar to yields of olefins from cracking a petroleum naphtha feedstock can be obtained.
Patent GB-2064097-A (GB)
Title: Solar Heating Device
IPC: F24S10/50
Filed: 1979-11-23
Abstract: A solar quilt (1) comprises an upper film (12) of optically transmitting material, its lower surface being reflective to infra-red energy impinging on its underside, and a lower film (14) of non-optically transmitting material, the upper surface of the lower film being rough. The two films form between them a multiplicity of gastight compartments providing a thermal insulation barrier. The quilt has utility in the solar heating of buildings, heat pump collectors, swimming pools and agricultural growing beds. In the last mentioned application the quilt may also be used to extend the growing season and to collect rain and to divert the latter onto the roots of produce. <IMAGE>
Patent GB-2038990-A (GB)
Title: Transmission belt
IPC: F16G5/16
Filed: 1979-11-26
Abstract: A transmission belt comprises an annular body (1) of generally trapezoidal transverse cross-section, in which there is embedded a plurality of cords (2). Plates (5,5, 6,6) are attached to opposite sidewalls of the annular body. The plates are made from a material having a high coefficient of friction so as to enhance the contact between the transmission belt and the pulleys of a transmission system. The plates can conveniently be made from a material of the type used in brake and clutch systems. The belt is especially suitable for use in a variable-speed transmission system. <IMAGE>
Patent GB-2049015-A (GB)
Title: Insulated building component
IPC: E04D13/14
Filed: 1980-04-18
Abstract: A tile for use in the construction of flat roofs and pedestrian walkways comprises spaced outer skins (1, 2) which are precast from glass- reinforced cement or asbestos cement and are held in spaced relation while a non-absorbent, heat-insulating foam (3) of vermin- and rot-proof material is injected into, fills the space between and adheres to the skins to form a heat-insulating core. <IMAGE>
Patent GB-2053638-A (GB)
Title: Agricultural drill
IPC: A01C7/20
Filed: 1980-05-02
Abstract: An agricultural drill comprising a frame 1 on which a retaining device 7 fitted with drill coulters 12 is detachably mounted by means of coupling members 8, said device having a beam 10 which extends transversely of the direction of travel and on which the drill coulters 12 are displaceable in a vertical plane by means of coulter holders 13 and are located in a transverse row as well as being pivotably and detachably connected. The retaining devices may be replaced by others on which drill coulters (12, 21) with gaps between them (Figures 2-5, not shown), are arranged alternately to each other in a plurality of transverse rows (11, 24, 25) located in series; said coulters having holders of the same length. In addition, in a preferred embodiment, a common support (29, 33, 37) should be provided at least for the particular adjacent coulter holders (12, 21) of the second and third transverse row. <IMAGE>
Patent GB-2080385-A (GB)
Title: Combination Spring/Dead Bolt Lock
IPC: E05B55/00
Filed: 1980-07-23
Abstract: One part of a key-in-knob lock set functions in a normal manner such that when the lock set is unlocked, either the outside or inside knob can open the door by withdrawing the latch bolt from a normal spring latch extended position. When the lock set is locked, the latch bolt is extended an exceptionally long distance to a dead bolt position. For withdrawing the latch bolt from the normal spring latch extended position an escutcheon housing for the outside or inside operating member serves, by moving transversely of the axis of rotation of the operating member, to rotate a radially extending finger on the spindle which, acting through a main cam, withdraws the latch bolt. By rotation of the outside key or an inside turn button the spindle is rotated a greater amount so that the main cam extends the latch bolt to the dead bolt position. In this position the finger for the hub cam of the outside knob is moved so that rotation of the outside operating member has no effect on the latch bolt. The finger for the hub cam of the inside operating member remains so that rotation of the inside operating member does in fact withdraw the latch bolt from the dead bolt position. <IMAGE>
Patent GB-2081830-A (GB)
Title: Fluid conduit connector
IPC: F16L37/34
Filed: 1980-08-08
Abstract: There is described a connector 1 for connecting a fluid conduit to a supply of fluid under pressure wherein fluid may be diverted to a tank feed pipe 72 or to the conduit in dependence on the presence or otherwise of a male connector 60 within said connector. To this end the male connector operates a dual valve 40 to divert the fluid under pressure to one of two outlets 11, 12 in the connector. <IMAGE>
Patent GB-2058685-A (GB)
Title: Vehicle cab ladder
IPC: B62B1/12
Filed: 1980-09-11
Abstract: A ladder is provided whose side members 8 are L-shaped. The shorter limbs 11 of the side members are provided with latches to engage an anchorage on the roof 4 of a vehicle cab to secure the ladder and facilitate access to the roof of the cab. The ladder has wheels at the bend in the side members 8 so that, when removed from the vehicle, it can be used as a hand truck. The longer limbs 12 of the side members may be hinged or telescopic so they may be reduced to a convenient length for use in the hand truck mode. A bearing member 6 towards the free ends of the longer limbs engages a wall of the cab when the ladder is secured to the cab. The wheels may have pulley grooves to facilitate raising a load to the roof of the cab. <IMAGE>