baber/WOPTO huggingface dataset:
Patent GB-1162558-A (GB)
Title: Optical Instruments
Inventor: IV FLAVIUS EUGENE DAVIS
IPC: G01M11/02
Filed: 1966-11-04
Abstract: 1,162,558. Optical apparatus. F. E. DAVIS IV. Nov. 4, 1966 [ Nov. 5, 1965], No. 49647/66. Heading G2J. Apparatus for examining a curved surface of a lens comprises a first pattern of parallel lines, means for projecting their pattern on to the curved surface, and variable magnification means for focusing a variable size image of the first pattern in super-position on a second pattern of parallel lines. The first pattern is carried on a cylindrical surface 38 and this pattern is projected on to a lens mounted on a lens support 24 by means of a series of lamps 36. The image reflected from the upper surface of the lens is observed with a binocular microscope 22, the size of the final image being adjustable on operation of a zoom control mechanism. The second pattern (40, Fig. 8, not shown) is mounted in one eye-piece (42) of the microscope at the image plane thereof and is a planar mirror image of the first pattern. When the second pattern and the image of the first pattern are of equal size the crossed parallel lines form a moire pattern of horizontal straight fringe lines while for all other relative sizes of the two patterns a moire pattern of slanting fringe lines is obtained. The zoom mechanism of the microscope is adjusted by means of a knob (28, Fig. 4, not shown) to provide the first condition the amount of adjustment being read from a counter (130) to provide an indication of the curvature of the lens surface under investigation. To provide a linear relationship between angular adjustment of knob (28) and magnification of the zoom lens the two are coupled by a cable having a follower thereon engaging an appropriately shaped cam. For measuring the power of a lens a reflector 136 is used alone and then the lens is placed thereon, the difference of the readings giving the required value.
Patent GB-1222636-A (GB)
Title: Method of operating a hydraulic turbine installation
Inventor: MAYO HOWARD A JR
IPC: F03B15/04
Filed: 1969-10-10
Abstract: 1,222,636. Hydraulic turbines. ALLISCHAMBERS MFG. CO. Oct.10, 1969 [Oct.17, 1968], No.49826/69. Heading F1T. A Kaplan type hydraulic turbine 6 connected to an electric generator 9 is started by slightly opening a downstream gate valve 22 from the fully closed position by means of a servomotor 23. Once the turbine 6 is rotating the valve 22 is progressively raised until the synchronous speed of the generator 9 is reached. The latter is then switched into the power distribution network. The construction eliminates the need for wicket gates, inlet valves or blade control mechanism.
Patent GB-1017842-A (GB)
Title: Improvements relating to mounting arrangements for electric heating units
Inventor: BYFORD GEORGE PLEDGER
IPC: F24C15/10
Filed: 1963-12-18
Abstract: 1017842 Electric hot-plates ASSOCIATED ELECTRICAL INDUSTRIES Ltd 26 Nov 1964 [18 Dec 1963] 49983/63 Headings F4W and W18B13 A hot-plate element pivotable horizontally for cleaning the spillage tray comprises a sheathed element mounted in the cap 9 of a slotted sleeve 7 which is slidable in a tube 10 brazed to the spillage tray. In use, with the sleeve down, lugs 14 enter the sleeve slots and the element is supported on a spider 18 as in Fig. 1 (not shown). When raised and rotated for cleaning as in Fig. 2 (not shown) the sleeve stands on the lugs 14.
Patent GB-1235480-A (GB)
Title: Improvements in or relating to conveyor belts
Inventor: THOMSON IAN MAIN
IPC: B65G15/34
Filed: 1967-11-07
Abstract: 1,235,480. Troughed conveyer belts. SOLAR THOMSON ENG. CO. Ltd. 31 Oct., 1968 [7 Nov., 1967], No. 50649/67. Heading B8A. In a conveyer belt of flexible material in which are embedded laterally extending reinforcement members, each of the latter comprises a plurality of elements 12, 13, 14 disposed in end-to-end relation and interconnected by belt-protecting means 11 covering at least adjacent ends of the elements. As shown, the means 11 comprises a nylon tube extending over the whole reinforcement member with nylon distance-pieces 19 between the elements. Alternatively the rods may be moulded in a mass of plastics material. A drive belt 21 as described in Specification 1,227,131 has ribs 24 which engage ribs 23 of the conveyer belt. Support shoes 22 engage grooves 20 of the belt 21 to maintain a troughed configuration. Each reinforcement may alternatively comprise two hinged sections.
Patent GB-1516637-A (GB)
Title: Mine roof supports
IPC: E21D23/03
Filed: 1974-11-23
Abstract: 1516637 Auxiliary shields or mine roof supports GULLICK DOBSON Ltd 12 Sept 1975 [23 Nov 1974] 50838/74 Heading E1P A mine roof support, of the type having a roof structure 14 supported from a base structure 10 by hydraulic props 11, has on at least one of its sides a laterally extensible and retractable auxiliary shield 20 and means 26, 27, Fig. 2, for extending the auxiliary shield outwardly. The shield comprises two box-like members 20, 24 which fit together telescopically and house the double-acting ram 26, 27 which extends and retracts the shield 20. The auxiliary shield has side 30 and rear 33 walls to serve as goaf shields, and the top wall 29 slopes downwardly towards the rear of the support. The operation of the auxiliary shield may be incorporated with the operation of the support advancing system. There may be an auxiliary canopy on each side of the support or on only one side with a resilient abutment member for the auxiliary shield of an adjacent support on the other side. The support may have a cantilever extension 15 with its own auxiliary canopy 32 which may overlap the other auxiliary canopy 20.
Patent GB-1055479-A (GB)
Title: Optical apparatus for indicating the angular orientation of a body
IPC: G01D5/38
Filed: 1963-12-24
Abstract: 1,055,479. Measuring angular orientations. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec.24, 1963 [Dec. 31, 1962], No. 51012/63. Heading G2J. The orientation, about three mutually perpendicular axes 20, 21, 22, of a body 14 on which a lined diffraction grating 15 is mounted and measured by observing the image of the grating on a reticle 30 of a collimator 10 which illuminates said grating. The image a line of dots as shown in Figs. 3a, 3b will rotate in the plane of the reticle or be shifted up or down or from side to side according to which axis the body rotates about, the centre spot 9 being at the centre when azimuth is correct. Either a reflection or transmission grating may be used. Suitably illuminated and the apparatus may be used to align the body or measure its orientation.
Patent GB-1269685-A (GB)
Title: Production of peroxyamine
Inventor: NORTH TERANCE WASHFORD
IPC: B01J21/00
Filed: 1969-10-17
Abstract: 1,269,685. 1,1<SP>1</SP> - Peroxydicyclohexylamine. BP CHEMICALS Ltd. 24 Sept., 1970 [17 Oct., 1969], No. 51094/69. Heading C2C. 1,1<SP>1</SP>-Peroxydicyclohexylamine is prepared by reacting together cyclohexanone, hydrogen peroxide and ammonia in the presence of ammonium nitrate. Preferably, a stabilizer, for example a salt of ethylenediamine tetra-acetic acid is present in the reaction mixture.
Patent GB-1399545-A (GB)
Title: Apparatus for stacking fins of two different materials
IPC: B65G59/06
Filed: 1972-11-06
Abstract: 1399545 Making heat exchangers SOC ANON DES USINES CHAUSSON 6 Nov 1972 [21 Dec 1971] 51152/72 Heading B3A [Also in Division F4] An apparatus for stacking fins first of one material, then of another material, in sequence, comprises a magazine 5 for storing the fins when stacked, two retaining means 16, 17 at an inlet to the magazine, the inlet having two passages, a push member 20 actuated by a jack 21 for feeding the fins into the magazine, therebeing means to supply to one passage a predetermined number of fins of the one material and to the other passage a predetermined number of fins of the other material. Steel fins 3 are stacked in a feeder 23 and copper fins 2 are formed in a stamping press (22), Fig. 2 (not shown). As the fins 2 are formed they are fed down a shoot 12 to a notch 14 in the base of the magazine and they are pushed one at a time by the jack 21 into the magazine against the bias of claws 16, 17. The claw 17 is provided with a notch 19 into which the last fin to be fed is located. After a number of fins 2 have been stacked, a counting device 35 actuates a valve 36 to operate a jack 33 of the feeder 23. The jack rotates pinions 27, 28 via cranks 31, 32 to move racks 25a, 26a amd 29a, 30a on which are located stops 25, 26, 29, 30. The stack of fins 3 rests on the stops 25, 26 and as they move outwardly the stops 29, 30 move inwardly to support the stack. On the return stroke of the jack, the stops 29, 30 release the lowermost fin and the stops 25, 26 move to support the remainder of the stack. The released fin 3a moves down a shoot 13 into a notch 15 and is held in a notch 19 in the claw 16. The jack 21 moves the fin on to the stack of fins 2 so that it locates in the claw notch 19, the fin stack being held between the claw 17 and a sliding element 37. In alternative embodiments the fins 3 may be supplied by a press similar to the press (22) or the fins 2 may be supplied from apparatus similar to the feed apparatus 23. The fins are secured to heat exchanger tubes (1), Fig. 1 (not shown), by known methods to manufacture a vehicle radiator.
Patent GB-1031040-A (GB)
Title: Perforation of thermoplastic sheets and films
IPC: B26F1/26
Filed: 1963-12-30
Abstract: 1,031,040. Perforating thermoplastic sheets. KENDALL CO. Jan. 19, 1965 [Dec. 30, 1963], No. 51201/63. Addition to 851,473. Headings B5A and B5B. The apparatus defined in Claims 8 to 10 of the parent Specification (which apparatus comprises a rotatable hollow cylinder of heat conductive material having a perforated peripheral wall, a part of the circumference of which is embraced by a travelling web of thermoplastic organic polymeric thin sheet material (such as a film), means for directing a stream of a hot gas on the exposed surface of the sheet on the cylinder, and means for cooling the cylinder) is modified in that the cylinder drum is imporforate, that its peripheral surface is covered by a thin perforated sleeve of heat conductive material and that there is provided a burner for directing a flame on to a portion of the travelling web of film sheet material at any moment of time embracing a portion of the circumference of the sleeve and that means are provided for cooling the drum at a locality remote from the flame. The cylinder may be mounted for rotation about a horizontal axis, the burner being situated above the drum and extending longitudinally thereof and the cooling means being situated below the drum. The cooling means may be constituted by a pipe extending longitudinally of the drum and having holes through which cooling air may be directed on to the drum.
Patent GB-1536404-A (GB)
Title: Switched-mode power supply
IPC: H04N3/185
Filed: 1975-12-17
Abstract: 1536404 Automatic voltage control PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 17 Dec 1975 [20 Dec 1974] 51627/75 Heading G3R [Also in Division H2] A switched-mode power supply comprises a non- regulated rectified voltage source providing a DC supply at a first or a second nominal voltage, a driver transistor 14 whose collector-emitter path is in series with the primary of a first transformer 34, a secondary winding of which is coupled to the base of a switching transistor 22 arranged in series with the primary of a second transformer 20, the end of the primary of transformer 34 remote from transistor 14 being coupled to the collector of an additional transistor 41 whose emitter is coupled to said DC voltage supply such that, when the DC supply is at the first nominal voltage, transistor 41 is saturated and, when the DC supply is at the second nominal voltage the transistor 41, behaves as a limiting resistor to limit the collector current of the driver, transistor 14 and hence the base current of the switching transistor 22. As described, the switching transistor 22 periodically interrupts the current in primary 21, the resulting voltages induced in secondaries 23 ... 25 being rectified at 27 ... 29 to provide DC supplies for TV equipment. The voltage in winding 19 is rectified at 18 and compared at 15 with a reference 16 and used to modulate the duration of 18kHz pulses 13 and thus maintain constant output voltage. The invention can maintain a desired Ic/Ib ratio of the switching transistor 22 and thus prevent it going out of saturation.
Patent GB-1516670-A (GB)
Title: Line-by-line reduced size photocopiers
IPC: G03B27/46
Filed: 1975-12-17
Abstract: 1516670 Line-by-line photo-copying W VINTEN Ltd 3 Dec 1976 [17 Dec 1975] 51678/75 Heading G2A A line-by-line photo-copier comprises a rotary cylinder 1, means for conveying a document 4 in slip-free contact with the cylinder, a capstan 2 which is of smaller diameter than the cylinder and is rotatable therewith about a common axis, means for conveying photo-sensitive material in slip-free contact with the capstan, and means for projecting an image line-by-line on a reduced scale from the document to the photo-senstive material. There may be suction between document 4 and cylinder 1. The capstan may be connected to the cylinder integrally or through a friction clutch. In the former case, two rollers may be employed to form a tensioned loop of photo-sensitive material round the capstan during exposure. A take-up reel for the photo-sensitive material may be driven from the capstan drive shaft via a friction clutch, Fig. 2 (not shown).
Patent GB-1081860-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D51/22
Filed: 1965-12-07
Abstract: 1,081,860. Disc brakes. ANDRE CITROEN SOC. ANON. Dec. 7, 1965 [Dec. 7, 1964], No. 51909/65. Addition to 1,056,129. Heading F2E. In a disc brake, including a fixed saddle 5 on which one or a pair of levers 6, 7 is or are pivoted at 8, 9 to apply one or both of a pair of pads 3, 4 to an axially movable or fixed disc 1, respectively, the or each lever acts on the associated pad via a thrust pin 2 which is adjustable in a direction perpendicular to the disc and which bears against a recessed abutment face provided on the lever in a position located substantially on a line joining the pivot to the point at which an operating force is applied, as by a cable 10, to the lever. In the embodiment shown, the cable 10 and its sheath 11 act respectively on the two levers 6, 7 and the recess 17 in each lever is spherical to engage a spherical end of the pin 2 which is threadedly engaged with a bore in the backing plate 12 or 13 of the associated pad, adjustment being effected by application of a spanner to a nut formation 27 and being locked by a lock-nut 16. Alternatively (Fig. 2, not shown), a pin (21) may be used which engages a recess (22) in the pad backing plate and a recess (23) formed in the end of a bolt (14a) which is threadedly engaged in a bore in the lever to enable adjustment, a nut (16a) locking the bolt in set position. A spring sleeve (24) retains the pin (21) during assembly. An alternative arrangement, including a bolt with a flat end face and a rubber retaining ring (24c), (Fig. 4, not shown), may be used. A modification of the embodiment of Fig. 1, (Fig. 3, not shown), has a knurled disc (26) and spring (25) in place of the nut formation 27 and lock-nut 16.
Patent GB-1370705-A (GB)
Title: Apparatus for monitoring articles
IPC: B65G47/244
Filed: 1972-11-10
Abstract: 1370705 Detecting articles photo-electrically SIG SCHWEIZERISCHE INDUSTRIE-GES 10 Nov 1972 [11 Nov 1971] 51953/72 Heading G1A [Also in Division G4] In order to count rectangular packages passing along a conveyer in contact with one another, the stream of packages is disturbed by guide elements 5, 6, 7, to create wedge shaped gaps 14 between the packages at a sensing station 9. The gaps may be counted using a photo-electric detector. As shown the packages are deflected by a roller 7 driven at the same peripheral speed as the conveyer so as to minimize forces on the packages. Alternatively the roller may be freely rotable or replaced by fixed guides.
Patent GB-1400798-A (GB)
Title: Photosensitive arsenic containing bisazide compounds
IPC: C08F8/42
Filed: 1972-11-10
Abstract: 1400798 Photo-sensitive composition INTERNATIONAL BUSINESS MACHINES CORP 10 Nov 1972 [26 Nov 1971] 51966/72 Heading C3P [Also in Divisions C2 and G2] Photo-sensitive cross-linkable compositions comprise an unsaturated polymer, e.g. cyclized polyisoprene, and an organo-arsenic bisazide compound, e.g. p-arseno(N-p-azidobenzylidene) aniline.
Patent GB-1510170-A (GB)
Title: Fluid control valve assembly
IPC: F16K11/18
Filed: 1975-12-19
Abstract: 1510170 Valves J C BAMFORD EXCAVATORS Ltd 30 Nov 1976 [19 Dec 1975] 52037/75 Heading F2V A valve spool 150 of a control valve assembly is connected by linkage 112 to a hand lever 108 which is mounted on a valve block 106 containing the spool 150, the direction of movement D of the lever to effect actuation of the spool being rotatably adjustable with respect to the block 106. As shown, two pairs of valve spools within the block 106 are actuated by lever 108 and a similar lever 109. Brackets 110, 111 are secured by universal joints 140 to a support pillar 107 on the valve block. Each pair of spools is connected through the associated linkage 112, 113 or 114, 15 and universal joints 148 to the respective bracket. In order to operate each valve spool, the associated bracket is pivoted, by means of the attached handle, about a line joining the universal joint 140 with the jointl 48 of the other spool of the pair. In order to change the angular orientations of the direction of movement of each lever, bolts 142, which normally inhibit such movement of the brackets 110, 111, are loosened to release to joints 140, the brackets are then rotated, to the position shown in Fig. 6, for example, and the associated bolts 142 are tightened.
Patent GB-1254647-A (GB)
Title: Improvements relating to key operated electric switches
IPC: H01H9/04
Filed: 1969-10-24
Abstract: 1,254,647. Locks. ROBERT BOSCH G.m.b.H. 24 Oct., 1969 [25 Oct., 1968; 6 June 1969], No. 52168/69. Heading E2A. [Also in Division H1] A protective cap of resilient material is fitted on the lock cylinder 5 of a key operated switch. The cylinder has a flange 6 at its one end over which the lip 11 of the cap engages within the annular gap between the cylinder and the casing 1. The cap has two sealing lips 15 through which the key is inserted and a cover 16 connected by a flexible arm 18. A sealing sleeve 19 is arranged on the outer periphery of the cap and engages an annular groove 9 in the casing neck 3.
Patent GB-1097599-A (GB)
Title: Fluid heaters
Inventor: ROSS IAN DAVID HEDGELAND
IPC: F28D7/10
Filed: 1964-12-24
Abstract: 1,097,599. Tubular heat exchangers. SOCIETE FIVES LILLE-CAIL. Dec. 24, 1964, No. 52433/64. Heading F4S. In a process in which a liquid is heated as it flows between concentric tubes 1, 4 by a vapour which passes firstly through the tubes 4 (where it is partly condensed) and then to the space 21 outside the tubes 1 where the remainder condenses, the vapour is admitted to the tubes 4 at a rate of flow such as to sweep away the film of condensate as it forms on the inner surface of the tube, thereby improving heat transfer. In an apparatus shown for carrying out the process, 28 is an inlet header and 23 an outlet header for the liquid being heated (e.g. sugar factory juice). 27 is a collecting chamber for the vapour condensate swept out of the tubes 4 by the uncondensed portion of the vapour which then flows through a connecting passage such as 30 to the space 21. The condensate formed in this space drains down the outside of tubes 1 into a well formed by a gutter 10. The well drains through pipes 11 into the collecting chamber 27. Screens 20 cover the condensate outlets from chamber 27 to prevent the carrying-away of vapour through these outlets. Non-condensible gases are removed from the space 21 through an extraction tube 14. Relative expansion of the tubes 1, 4 is permitted by the provision of a suitable joint between the lower ends of tubes 4 and the corresponding tube plate 6 (see Figs. 2 and 3, not shown). The connecting passage between the space 21 and the chamber 27 may comprise a tube (42) extending through the lower tube plate assembly (Fig. 4).
Patent GB-1528940-A (GB)
Title: Lubricating oil compositions
IPC: C08G65/338
Filed: 1975-12-23
Abstract: 1528940 Polyoxyalkylene sulphates CHEVRON RESEARCH CO 23 Dec 1975 52751/75 Heading C3R [Also in Division C5] A rust-inhibiting additive in a lubricating composition is a sulphate of a polyoxyalkylenated alcohol or phenol. The alcohol may be monohydric or polyhydric and may contain amino groups. The sulphate may be present as its salt with ammonia or with an organic amine. It may be prepared by first drying the polyoxyalkylenated alcohol or phenol azeotropically, then reacting it with sodium hydride to form the sodium salt (Example 1), then reacting this salt with chlorosulphonic acid (Examples 2 and 4), or by drying it and then reacting it directly with sulphamic acid (Examples 5-11).
Patent GB-1499170-A (GB)
Title: Rotary and percussive drive devices for drilling tools
IPC: B25D9/12
Filed: 1975-12-23
Abstract: 1499170 Rotary percussive drill A F HYDRAULICS Ltd 10 Dec 1974 [23 Dec 1975] 52761/75 Heading B4C [Also in Division B3] A rotary and percussive drive device for a drilling tool such as a rock drill, comprises hydraulic reciprocating percussive means 11 and hydraulic rotary drive means 10 which is connected hydraulically in series to the exhaust side 23 of the means 11. In Fig. 1, the percussive means 11 is a piston motor generally as described in U.K. Patent Specification 1,396,307, automatic cyclic valve 17 controlling inflow and exhaust of fluid to and from chamber 14 while return movement of the piston 13a is initiated by rebound of the tool 15 on the striker 13b and by fluid flowing along line 21. The initial rebound pulse is transmitted through line 23 and manually operable valve 24 either to exhaust via restrictor 26, which can control the frequency of the piston reciprocation, or to piston motor 30, 25 which rotatably drives, in steps, via ratchet mechanism 27, 28, a bush 16 for tool 15. The stroke of piston 30 is determined by exhaust port 32 and the piston is returned by spring 31. The side face of piston 30 or the wall of cylinder 25 is provided with a small by-pass restriction channel (not shown) which prevents the striker 13b stalling, if the rotary action jams. In Fig. 3, the piston motor 30, 25 is replaced by rotary motor 40 driving the tool 15 through gear 42, a by-pass variable restrictor 41 controlling the reciprocating drive power and rotary drive power in inverse relationship.
Patent GB-1247024-A (GB)
Title: Semitrailer vehicle with sleeping accomodation for transporting passengers by road
IPC: B62D47/02
Filed: 1968-11-07
Abstract: 1,247,024. Touring coaches. SOC. INTERNATIONALE POUR LE DEVELOPPMENT DU TOURISME S.r.L. 7 Nov., 1968 [10 Nov., 1967], No. 52802/68. Heading B7B. A touring coach designed as a semi-trailer has a forward observation compartment 36 disposed over the fifth wheel coupling, cabins 1 having twin bunk beds, lavatories 7, 9, a longitudinal corridor 3 and access doors 41 and 43.
Patent GB-1428226-A (GB)
Title: Process for the prepataion of aromatic hydroxylamines in the  presence of catalysts
IPC: C07C239/00
Filed: 1973-11-15
Abstract: 1428226 Aromatic hydroxylamines RHONEPOULENC SA 15 Nov 1973 [16 Nov 1972] 53112/73 Heading C2C Aromatic hydroxylamines having the formula wherein R is alkyl, cycloalkyl, phenyl, phenylalkyl or alkylphenyl, or wherein two adjacent radicals R can, together with the two carbon atoms of the benzene ring to which they are attached, form a benzene ring which is orthocondensed with the benzene ring shown, and n represents zero or an integer from 1 to 5, are prepared by hydrogenating an aromatic nitro derivative of the formula with hydrogen in the presence of palladium and an organic base having a pKB of less than 3À2 at 25‹ C., the ratio by weight of organic base to compound (II) being greater than 0À5 : 1. Specified organic bases are diethylamine, diisopropylamine, piperidine and coniine,