baber/WOPTO huggingface dataset:
Patent GB-1231349-A (GB)
IPC: F01L13/00
Filed: 1969-12-02
Abstract: 1,231,349. Reversing. MASCHINENFABRIK AUGSBURGNURNBERG A.G. Dec.2, 1969 [Dec. 4, 1968], No.58904/69. Heading F1K. A camshaft in a reversible four-stroke cycle internal-combustion engine incorporates three cams 2, 3, 4 per engine cylinder which are arranged to control the inlet and exhaust valves, the central cam 3 acting either as an exhaust cam or as an inlet cam in dependence upon the direction of rotation of the engine. As shown the camshaft may incorporate two fuel pump cams 13, 14.
Patent GB-1232285-A (GB)
IPC: C25B3/25
Filed: 1968-06-14
Abstract: 1,232,285. Fluorinated benzene derivatives. W. CANNING & CO. Ltd. 15 Sept., 1969 [14 June, 1968], No. 28330/68. Heading C2C. [Also in Division C7] Fluorinated benzenes and substituted fluorinated benzenes are prepared by electrolytic reduction of a carbocyclic compound with a 6- membered ring having one or two double bonds, and substituted on the ring C atoms by 0 to 3 groups in the class: -R, -NR 2 , -OR, =NR, =O and -R F  (R being the same or different and H or C 1-6  alkyl; R F  being a fluorinated C 1-6  alkyl), and on the remaining ring atoms by F. A fluorinated cyclohexadiene, which may be substituted with H, C 1-6  alkyl or alkoxy, is electrolytically reduced to remove 2 F from the ring; e.g. hexafluorobenzene may be prepared from octafluorocyclohexadiene, tetrafluorobenzene from hexafluorocyclohexadiene and pentafluorotoluene from methylheptafluorocyclohexadiene. A fluorinated 1- amino-cyclohex-1-ene substituted on the 3- position by = O or =NR is electrolytically reduced to remove 3 or 4 F from the ring; e.g. tetrafluorophenylene diamine may be prepared from amino-imino-heptafluorocyclohexene, trifluorodimethylphenylene diamine from methylamino - methyliminoheptafluorocyclohexene, tetrafluoroisopropylaminophenol from isopropylaminoheptafluorocyclohexen-3-one and pentafluorophenetole fromethoxy-heptafluorocyclohexadiene. The fluorinated cyclohexadienes may be prepred by treating fluorocyclohexanes with KOH solution; and the fluorinated aminoimino-polyfluorocyclohexenes by treating a perfluorocyclic olefin with ammonia or amine. The starting cyclohexadiene may be dissolved in a catholyte solvent of water and an alkanol (e.g. methanol, ethanol or propanol), ether (e.g. dioxan) or a ketone (e.g. acetone) containing K or Na acetate as buffering agent. A porous barrier, e.g. a sintered glass disc, preferably prevents the catholyte and anolyte from mixing. The anolyte may also contain the buffering agent. The pH is preferably adjusted above 7 by adding acetic acid. The cathode may be a Hg pool, and the anode a Pt foil.
Patent GB-1238453-A (GB)
IPC: B23Q5/04
Filed: 1967-10-24
Abstract: 1,238,453. Morticing machine. RYE ENG. WORKS (HIGH WYCOMBE) Ltd., and A. F. HAWES. 17 Oct., 1968 [24 Oct., 1967], No. 48369/67. Heading B5L. [Also in Division B3] A machine for cutting mortices or slots or for drilling holes comprises a spindle 10 provided with tool holding means such as a chuck 11, a slide 15 carrying the spindle 10 for rotation therein, and mounted on a machine frame 24 for reciprocatory movement thereon transverse to the spindle axis, the spindle 10 also being movable axially in the slide 15, means for effecting axial movement of the spindle, and a motor 30 which is drivably connected by a first belt drive 32 to the spindle 10 which permits axial movement of the spindle, and is drivably connected by a second belt drive 37 to a crank, rotation of the crank by the motor effecting the reciprocatory movement of the slide 15. As described the spindle 10 is carried by a sleeve 14 provided with a piston 16 slidable within a cylinder 18 in the slide 15, the piston 16 and hence spindle 10 being movable by pressure fluid applied via ports 19, 20. The motor 30 acts via pulley 31 and the belt 32 to rotate the spindle 10, and acts via the belt 37 and reduction gearing to rotate a shaft 39 carrying a crank pin 40 interengaging with a slipper 42 mounted in a slot 44 in the slide 15 to reciprocate the slide. The extent of reciprocation of the slide is adjusted by adjustment of the position of the pin 40 and may be reduced to zero when the machine is used for drilling. The extent of axial movement of the spindle is controlled by an adjustable stop nut, not shown. A cylindrical portion 25 of the machine frame 24 is mounted within a clamp ring, not shown, so that the line of slide reciprocation can be varied. The clamp ring may be carried on a mounting bracket slidable in the axial direction of the spindle on a machine bed.
Patent GB-1239294-A (GB)
IPC: H02P5/50
Filed: 1968-09-06
Abstract: 1,239,294. Forming articles by winding. MANCARR-TRUST. 6 Sept., 1968 [12 Sept., 1967], No. 42616/68. Heading B8G. [Also in Division F2] Apparatus for producing synthetic plastics pipes or tubular bodies from synthetic resinimpregnated rovings comprises a driving shaft 13 having a driving means for rotating the shaft 13 at a constant speed for driving a carriage 14 along a path parallel to the longitudinal axis of a winding core 1. The carriage 14 is provided with moving bobbins and at least one swivelling impregnating trough with associated driving means and a guiding means is provided for the rovings. The apparatus further comprises a control circuit comprising two pulse generators 17, 21 for converting into pulses the rates of rotation of the shaft 13 end core 1, and a first servomotor 26 to which the pulse difference is applied, the servomotor 26 controlling the gear ratio of a transmission 11 in the shaft driving means to synchronize the rates of rotation of the shaft with that of the core. A differential gear (Fig. 2, not shown) is drivable by the drive shaft 13, the casing of the differential gear being drivable by a second servomotor activatable by reference to the position of the carriage 14. The second servomotor, through the differential gear decelerates the carriage until it is stationary and also deflects the impregnating trough 16 at the appropriate rate for changing the angle at which the rovings run on to the winding core until the angle is zero and then on the reversal of the motion of the carriage 14 accelerates the carriage up to its constant speed and swivels the impregnating trough to its constant speed winding angle. In the construction disclosed the carriage is driven along fixed racks by gearwheels under the influence of the driving shaft and the second servomotor and a reversing gear (Fig. 2, not shown). For making a container having an end wall the apparatus is provided with an adjustable crank drive mounted on the swivel axis 15 of the impregnating trough and a lever pivotably mounted on a block adjustably positioned in a slot of the crank drive is pivotably connected to one arm of a two-armed lever (Fig. 4, not shown).
Patent GB-1250065-A (GB)
IPC: A01K1/00
Filed: 1969-07-23
Abstract: 1,250,065. Ventilating buildings. R. L. SCARLETT. 30 June, 1970 [23 July, 1969], No. 37039/69. Heading F4V. A ventilating system for a building having a pitched roof comprises a first closure member for an upper opening at or adjacent to the highest point of the roof and a second closure .member in the form of a roller for a lower opening at the junction of a side wall and the roof. In the form shown, both closure members 15, 23 are rollers and are movable on guide rails 16, 26 by a flexible cord 17 wound around the rollers and having a weight 18 at one end. In another embodiment, the roof 4 may have one or two inclined surfaces, the roof ridge includes the upper opening, and the first closure member is a beam of rectangular or circular cross-section which is slidably mounted on vertical guide rods. Rollers 15 are provided at each roof edge. The free end of the cord 17 is secured to the beam, which is actuated by a pivoted lever and another cord. Two or more beams may be provided, all simultaneously operable, with two rollers 15 corresponding to each respective beam. Metal or rubber flaps on the or each beam form waterproof seals with the roof in the closed position. Each roller may be made from tubular steel and its movement may be limited by radial pegs. The closure members may be regulated in response to a thermostat. Insect netting may cover the opening or openings 14. The building may be a greenhouse, an animal house, a hall or a factory.
Patent GB-1257831-A (GB)
IPC: H02P27/02
Filed: 1969-02-24
Abstract: 1,257,831. Control of A.C. motors; transistor rectifying circuit. SHERWOOD MEDICAL INDUSTRIES Inc. 24 Feb., 1969 [4 March, 1968], No. 9795/69. Headings H2F and H2J. A paralleled motor 40 and capacitor 42 are connected in series with a transistor 44 which is adapted to modify an A.C. waveform to introduce a variable D.C. component therein. The transistor can operate so that the emitter and collector interchange their functions when the current passing through the transistor is reversed. When the transistor is biased with sufficient negative voltage between base and emitter, both half-cycles are passed without modification. As the forward bias is reduced, one half-cycle has a lesser amplitude, the other remaining unchanged, so introducing a D.C. braking component. If the base receives a slight positive bias, the transistor passes one complete half-cycle only which may be reduced to zero by increasing the positive bias, Fig. 4 (not shown). The transistor 44 may be connected across the shading coil of a shaded pole motor to form a variable shunt. In a further embodiment, the motor has two windings which are in mutual phase-shifted relationship, one of the windings being shunted by a capacitor and supplied from a centretapped transformer through one or other of a pair of transistors for reversible operation of the motor, Fig. 5 (not shown).
Patent GB-1264808-A (GB)
IPC: G07F17/32
Filed: 1968-05-16
Abstract: 1,264,808. Gaming machine. BACKAGEE Ltd. 15 May, 1969 [16 May, 1968], No. 23398/68. Heading A6H. [Also in Divisions G2 and G3] In a gaming machine, a randomly selected one of a number of film sequences disposed side by side across the width of a cinematograph film is projected on to a screen. As shown, projector 12 shows an endless film which is stored on drum loop absorber 17 and is divided into a number of sections each of which is of a different flat race. Each frame of the film is divided (Fig. 7) into four subframes 18, 19, 20, 21, each race is divided into two separate sequences, and each of the subframes 18-21 bears images of one of four possible sequences of the race. A particular winning horse is allotted to each sub-frame so that when a horse wins it means that the corresponding sub-frame is projected in the final sequence. During screening of a race, a beam from projector 12 is directed along path 23 to impinge on screen 29 by means of mirrors 24, 25, 26, 27. The first mirrors 24, 25 are tiltable, in response to motor-driven random selection means, so as to project only a selected one of sub-frames 18-21. In operation, a coin is placed in one or more coin rejectors 33 according to which of the horses is fancied to win, start button 37 is depressed, a first randomlyselected sequence is projected, a second randomly-selected sequence is projected, this showing the end of the race, and any winnings collected from automatically fed payout cup 36. In modifications, videotape is employed instead of film; and sub-frame selection is made by alteration of the phase of the flashes from a stroke light, or by moving a tilting, revolving or sub-divided projector lens, or by bringing all the sub-frames to coincide on the screen and masking all but one of them by a moving shutter in or close to the projector gate.
Patent GB-1266234-A (GB)
IPC: G03B17/20
Filed: 1969-06-06
Abstract: 1,266,234. Photographic cameras. ASAHI KOGAKU KOGYO K.K. June 6, 1969 [June 12, 1968], No.28846/69. Heading G2A. A reflex camera having inter-changeable objectives has a diaphragm coupled member 6 for transmitting diaphragm values to a scale 18 visible in a view-finder, a non-linear diaphragm value spacing characteristic in the vicinity of the fully-open diaphragm being transformed to a linear characteristic on the scale 18 by compensation means 9. An index 15 is attached to a cord 16 one end of which is attached to a spring 17 and the other end passes over a roller 14 and is fixed to a projection 10 of a compensating ring 11 loosely fitted within member 6. The roller is mounted upon one arm of a two armed lever 12, the other arm 12<SP>1</SP> engaging the surface of the non-linear transformation section 9. The objective has a diaphragm indicating member 4 and a diaphragm indication compensating member 5 which upon mounting the objective oppose projections 7, 10. The camera is designed so that light is received through the fully open objective upon a photo-cell 19.
Patent GB-1266856-A (GB)
IPC: B23Q15/02
Filed: 1968-03-22
Abstract: 1,266,856. Gauging. NATIONAL RESEARCH DEVELOPMENT CORP. 11 March, 1969 [22 March, 1968], No. 14083/68. Headings B3B and B3T. In a method of machining an end face of a rotating disc-like workpiece, means is provided to control the position of the cutting-tool to compensate for axial deflection of the disc and for tool wear during the machining operation. A gauge 21 is radially adjustably mounted, in relation to the axis of rotation of the workpiece, on the cross-slide of the machine, in a position diametrically opposite to the cutting tool 15, the gauge co-operating with a previously machined portion of the disc 9. The gauge 21 is a proximity gauge of the pneumatic type which indicates, due to changes in pressure, variations in the gap between the gauge and the surface of the disc being machined. The pressure signals from the gauge 21 are passed to a summator 23 which in turn controls an electro-hydraulic servo-valve 26 for actuating a piston and cylinder assembly 14 carrying the cutting tool 15. The gauge is supported on an endless belt 17 mounted on the cross-slide 12 so that the gauge and the tool can be maintained in diametrically opposite radial positions relative to the axis of rotation of the disc. The summator operates on a signal differential basis so that when the output from the summator is zero the correct tool position is established. In an alternative embodiment, Fig. 3 (not shown), the electromagnetic servo-valve is omitted and the output from the summator is fed to an hydraulic pneumatic servo-valve (28).
Patent GB-1288155-A (GB)
IPC: F01L3/00
Filed: 1970-03-21
Abstract: 1288155 Valves SOC D'ETUDES DE MACHINES THERMIQUES 21 March 1970 13785/70 Heading F2V [Also in Division F1] A poppet valve includes heat insulating material 11, e.g. mica in the form of a solid mass, bonded flakes or thin sheets, in an annular cavity 10 in the head opening to the head circumference through a circular slit 12. The material 11 is compressed between a part 4 carrying the seat 5 and the main valve part 2, 3 which are connected by a screw-thread, a force fit, welding or brazing. Diametrically opposed holes 19 or flats may be provided on the part 4 to assist assembly and the part may be locked in position by staking, spot-welding or a pointed screw. The seatcarrying part (4a), Fig. 2 (not shown), may be an annular plate which is secured to the main valve part 2, 3 by an internally threaded ring (21). The seat-carrying part is located coaxially of the main part by abutment between respective axially extending faces (22, 23) and prevented from relative rotation by a pin (25) or flats on the abutting axial faces.
Patent GB-1296129-A (GB)
IPC: B01F5/06
Filed: 1970-04-09
Abstract: 1296129 Emulsifiers ELF DISTRIBUTION SA 9 April 1970 [9 April 1969] 17006/70 Heading B1C An emulsifier, particlarly for emulsifying fuel oil and water, has an inlet passage 1 leading to a first annular radial passage 5 from which the liquid discharges to impact against the outer wall of an annular cavity 13 with blind ends 11, 12. A second annular radial passage 14 leads to a second annular cavity 16, which has one blind end 15, and annular recesses 17 in its inner wall. The liquid then impinges on a radial wall 28 with an annular recess 29 and flows to a central chamber 51. Two devices may be inserted in one casing 21, in series, as shown. The emulsifier may terminate in a convergent-divergent nozzle 34 the inlet section 35 of which acts as a reflector for shock waves in the emulsifier.
Patent GB-1296246-A (GB)
IPC: C08J3/12
Filed: 1970-08-20
Abstract: 1296246 Particulate cross-linked ureaformaldehyde condensation products CIBAGEIGY AG 20 Aug 1970 [12 Sept 1969] 40178/70 Addition to 1239143 Heading C3R Particulate cross-linked urea-formaldehyde condensation products are prepared by adding sulphamic acid or a water-soluble ammonium hydrogen sulphate RNH 3 .HSO 4 , wherein R is H or an organic radical, in the absence of any protective colloid, to an aqueous solution of a urea-formaldehyde precondensate in which the formaldehyde : urea molar ratio exceeds 1À2 : 1 when gel formation starts, and comminuting, drying, and deagglomerating the resultant gel. The precondensate is preferably made at pH 6-9 and 40-100‹ C., and the gelation carried out at between room temperature and 100‹ C. with intensive mixing. The urea and formaldehyde may in part be replaced by other aldehyde-reactive compounds and other aldehydes. In the examples sulphamic acid is added to a UF precondensate in various strengths o aqueous solution.
Patent GB-1296457-A (GB)
IPC: G01S17/931
Filed: 1970-06-10
Abstract: 1296457 Warning device for vehicles L WESCH 10 June 1970 [11 June 1969] 28225/70 Heading G1A In a warning system for vehicles including a pulsed laser beam source of infrared radiation secured to the vehicle along with a detector for detecting pulses from an obstruction, the obstruction includes a further detector and a further source of electromagnetic radiation which emits the pulses to the detector on the vehicle when the further detector receives the laser pulses from the source on the vehicle. In the Fig, cars 1 and 3 are travelling along a road an an infrared laser beam is emitted from a source 3 on car 1 striking a detector 4 on car 2 thereby activating a further source 5 whose beam strikes a detector 6 on car 1. Car 1's detector subsequently activates a warning light or meter indicating the presence of an obstruction (car 2). Other embodiments are described in which the beam sweeps the field of observation in front of the vehicle, or in which the beam is also used as a comunication means.
Patent GB-1297054-A (GB)
IPC: H04N9/083
Filed: 1970-03-04
Abstract: 1297054 Colour television RCA CORPORATION 4 March 1970 [6 March 1969] 10338/70 Heading H4F In colour television camera systems in which a pair of colour filter gratings 13, Figs. 3, 4 are placed in front of a monochrome camera tube 11, one filter comprising alternate equal stripes of cyan 17 and grey 18 and the other, at 45 degrees to the first, comprising alternate equal stripes of yellow 19 and grey 21, the grey having the same transmissivity to white light as the cyan and yellow such that an image 15, when raster scanned through the filters gives chrominance signals (R-Y) and (B-Y) directly as sidebands of suppressed carriers at 5 Mc/s. and 3.5 Mc/s. respectively, it is found that the (RY) signal for a blue image is indistinguishableapart from a normally undetectable 180 degree phase difference-from that arising from a yellow image. Similar ambiguity arises between cyan and red colours for the (B-Y) signal. The described arrangement thus detects the phase of the chrominance signals to overcome the ambiguity. The (B-Y) signal, separated out by filter 23, Fig. I, in square wave form is detected at 28 and offered by means of phase splitter 29 in direct and inverse form at respective output terminals. Since blue. and yellow are complementary colours, equal intensity colours would give two corresponding equal but opposite values of (B-Y). It is thus the object of the arrangement to select which output 31 or 32 to use. The square wave output of filter 23 is frequency doubled at 35, after limiting, to remove the modulation, to give a constant phase signal of 7 Mc/s. This signal is passed to a binary frequency divider which produces a signal at 3.5 Mc/s. in phase or in antiphase with the output of filter 23 depending on the output of a synchronous detector 43. A phosphor strip 39, Fig. 2, blanked off from the image but illuminated by ultraviolet 41, produces a timing pulse 45 at the beginning of each line. This gates the output of limiter 34 through gate 42 for phase comparison with the output of divider 36 in detector 43. An antiphase detection causes detector 43 to give a signal, switching over divider 36. The thus phase-standardized divider output is phase compared in synchronous detector 46 with the (B-Y) signal of filter 23 whereby an antiphase detection causes switchover of the used one of outputs 31 and 32. Instead of phosphor strip 39, the timing pulse 45 may be produced by projecting non-interfering stripes of colour, e.g. green and magenta, Figs. 3, 5 (not shown) on to the camera tube which give separable components in the (B-Y) and (R-Y) signals.
Patent GB-1297644-A (GB)
IPC: G09B29/06
Filed: 1969-09-10
Abstract: 1297644 Route-progress indicators W R CRADDOCK 24 Aug 1970 [10 Sept 1969] 44595/69 Heading G1K A route progress indicator on a motor vehicle comprises a guide track 12 terminating each end in trays 13 (preferably arcuate in shape) and clipped on to a housing 10 with bosses 11 for attachment to an instrument panel, at least one feed sprocket 21 rotatably mounted with its teeth protruding into the plane of the track 12 to engage perforations in a strip 23 bearing data related to a pre-selected route and reduction gearing mounted in the housing 10 connecting the sprocket 21 to a driving gear 36, which can be connected by a cable drive 51 to the speedometer drive in the vehicle gear box. The strip 23 may be made of trasparent paper or film material and the track 12 of light coloured translucent material. The data on the strip 23 is viewed through an aperture 16 in a front cover 14 and read against a datum mark on an adjustable cursor 17 and may be illuminated by a lamp in the housing. An adapter is described whereby the device and the speedometer may be driven simultaneously from the vehicle gear box, through respective cables.
Patent GB-1308949-A (GB)
Title: Method and apparatus for producing turkish towelling
IPC: D04B23/08
Filed: 1970-06-13
Abstract: 1308949 Knitting machines, knitted fabrics H LINDNER and G. ROSCHER 13 June 1970 28738/70 Headings D1C and D1K A warp-knit fabric with a pile having loops of varying sizes is produced by supplying varying lengths of yarn 4 to form each loop. Yarns 3, 4 are fed through yarn guides 6, 7 to the knitting machine to form the base fabric. Yarn 4 is fed successively between clamping jaws 14, 15, yarn guides and clamping jaws 16, 17. The movable jaws 15, 17 are operated by cam discs 18, 19 and links 20, 21. Guide 8 is displaced varying distances to draw varying lengths of yarn from supply 25 by a pattern roller 22 with solid parts and apertures. When guide 8 engages an aperture it is not moved forward until stop 24 engages the roller. In operation, jaws 16, 17 are closed. Guide 8 is moved to draw off a length of yarn, jaws 14, 15 are closed and jaws 16, 17 are opened and guide 8 returned to normal position. The length of thread is then drawn into the fabric as a pile loop. Pattern roller 22 may have pins of varying lengths instead of apertures.