baber/WOPTO huggingface dataset:
Patent GB-1155887-A (GB)
Title: Slide Changing Apparatus
IPC: G03B23/04
Filed: 1966-10-05
Abstract: 1,155,887. Slide projectors. AGFAGEVAERT A.G. Oct.5, 1966 [Oct. 9, 1965], No.44503/66. Heading G2J. A slide changing apparatus, in which the magazine is advanced by a transport wheel 19 rotated by an advancing pawl 20 which is activated by the slide changing mechanism 14, said pawl having two setting positions for forward and reverse advancement of the magazine, has a manual setting means 22 whereby the pawl 20 can be located in an intermediate position out of coupling engagement with the transport wheel 19. As described, the transport wheel carries a gear-wheel 18 for engaging the rack of a conventional magazine, and, six peripheral projections 19a-19g for coupling with the pawl 20, which comprises a resilient plate resting on the projections and having an angled edge 20b which engages one of the projections depending whether forward or reverse motion is selected. The pawl is advanced by a pin 26 on a manually operated slidable push-rod 14, which moves the slides to and from the projection position, and is returned under the action of a spring 25. As shown in Fig. 2, the apparatus is set for forward advance of a magazine by edge 20b engaging projection 19c. When the setting lever 22 is moved leftwards to the intermediate position, the pawl 20 rests on the projections and the edge 20b cannot engage any of the projections. A spring tongue 27 snaps into a hole 22b on the setting lever and into a recess in the push-rod 14 to act as a spring catch, and the magazine may then be moved freely and the push-rod 14 may be pushed into the apparatus against the spring catch. On moving the setting lever 22 further left for reverse advance of the magazine, the angled edge 20b can engage the projection 19g.
Patent GB-1509171-A (GB)
Title: Input circuits for inserting charge packets into charge-transfer-devices
IPC: H01L29/768
Filed: 1976-10-26
Abstract: 1509171 Charge transfer devices INTERNATIONAL BUSINESS MACHINES CORP 26 Oct 1976 [2 Dec 1975] 44521/76 Heading H3U [Also in Division H1] An input circuit for a charge transfer device (CTD) such as a bucket brigade or a charge coupled device includes an input terminal 28 connected to an input diode source diffusion 12 of the CTD through a capacitance C. The non-linear depletion capacitance C d  is parasitic and is a source of distortion and its effects are compensated for by the inclusion of an active device, e.g. IGFET 30, to provide a supply of charge carriers, the gate of this device being connected to a reset signal source. IGFET 30 is made conductive during a precharge period, and any excessive charge is drained away via diode 24.
Patent GB-1166123-A (GB)
Title: Process for the Preparation of 1,2,3,4,5,6-Hexahydro-2,5-Benzodiazocine Derivatives
Inventor: HOULIHAN WILLIAM JOSEPH
IPC: C07D245/06
Filed: 1966-10-06
Abstract: 1,166,123. Benzodiazocine derivatives. SANDOZ Ltd. 6 Oct., 1966 [18 Oct., 1965], No. 44711/66. Heading C2C. 1 - Substituted - 1,2,3,4,5,6 - hexahydro - 2,5- benzodiazocines of the general formula wherein R is a phenyl or p-chlorophenyl radical, and acid addition salts thereof are prepared by reduction of a 9b - substituted - 1,2,3,9btetrahydro - 5H - imidazo[2,1 - a]isoindol - 5- one of the general formula with an aluminium hydride, followed by optional conversion to an acid addition salt of the product. Pharmaceutical compositions comprising a 1- substituted - 1,2,3,4,5,6 - hexahydro - 2,5- benzodiazocine of the first general formula above, as active ingredient, in addition to a physiologically acceptable, inert carrier, are central nervous stimulants and appetite depressants and may be administered orally or parenterally. Reference has been directed by the Comptroller to Specification 1,059,174.
Patent GB-1336463-A (GB)
Title: Halogen motorcar lamp
IPC: H01K9/08
Filed: 1971-09-27
Abstract: 1336463 Vehicle headlamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Sept 1971 [30 Sept 1970] 44824/71 Heading H1F [Also in Division F4] A twin filament halogen lamp comprises an envelope 7 including cyclindrical end portions 9, 11 and a widened central portion 13, a plane through the transition zone 19 between 9 and 13 lying approximately at the centre of the antidazzle filament 17, which itself is partially surrounded by a reflective screen 18. A part of the envelope is blackened at 35, e.g. by painting, the extent of area 35 being determined as follows: imaginary conical surfaces are generated by a line rotated through a point 14 on the envelope axis, between the filaments, using the zone 19 as a base, the surfaces being denoted by lines 37a, 37b where they intersect the plane of the drawing, the angle α between the line and the axis being between 40 and 50 degrees; the intersection of the surface with portion 13 of the envelope determines the axial limit of area 35.
Patent GB-1123107-A (GB)
Title: Container and dispenser units
IPC: F42B39/00
Filed: 1966-10-07
Abstract: 1,123,107. Pill &c. dispensers. DYNAMIT NOBEL A.G. 7 Oct., 1966 [7 Oct., 1965], No. 45059/66. Heading B8P. A dispenser unit has longitudinal chambers 3 (Fig. 2) to receive articles such as percussion caps, pills, &c. and which communicate with a rotatable and/or reciprocable conveyer device 8, which dispenses a predetermined number of articles from the unit. As described, ribs 9 forming chambers in the slide member 8 are aligned with partitions 2 in the container part 1, which is covered by a lid 4. The slide 8 is pushed by a tongue 10, which prevents the articles from falling out of the rearmost chamber 3. In an alternative embodiment, the lid 4 is secured by projections (15) (Fig. 7, not shown), engaging recesses 19, Fig. 5, in the container part 1. The slide 8 is moved by a knurled knob (25) (Fig. 6, not shown), projecting through an opening 21 in the container bottom 20. Alternatively, a projection (25) on the slide 8 may project through an opening in the end wall of the container 1 (Fig. 16, not shown). The bottom of the slide 8 and the adjoining bottom 20 of the container 1 are trough shaped (Fig. 11, not shown) so that the caps 7 are firmly held in position. The displacement of the slide 8 is limited by a further projection (30) (Fig. 12, not shown), engaging in a recess (29) in the end wall 17 of the container 1. A leaf spring (32) (Fig. 13, not shown), engaging in recesses (33) in the end wall 17 may fix the slide 8 in the closed and extracted positions. Alternatively, the slide 8 may have an extra chamber (Fig. 14, not shown) so that the caps 7 may be removed from both sides of the container 1, against which extensions (34) abut to limit the dispacement of the slide 8. The containers 1 may be stacked, each layer having its own slide member 8 (Fig. 15a, not shown), or one slide 8 being provided in the lowermost layer. In a further embodiment, the chambers in the container 1 are formed by tubular openings (39) (Fig. 17, not shown), into one end of which fit projections (40) on a cover (4). Alternatively, the chamber may be arranged in zig-zag formation (Fig. 20, not shown). In another embodiment, a slide member 8 of circular cross section is rotated during axial displacement by a projection 25, Fig. 18b. In a further embodiment, the articles 7 are axially displaced by the rotation of a conveyer worm 51, Fig. 21.
Patent GB-1400023-A (GB)
Title: Ward leonard speed control systems for dc motors
IPC: B66B1/24
Filed: 1972-09-29
Abstract: 1400023 Automatic control of speed HITACHI Ltd 29 Sept 1972 [1 Oct 1971]  45095/72 Headings G3N and G3R An automatic speed control system for a D.C. motor forming part of a Ward Leonard set has a compensating circuit provided wherein signals representing the first and second derivatives of motor speed are fed back. As shown the motor M drives a tachogenerator PG and an accelerometer AG and is connected to generator G whose field winding fg is energized from control amplifier A. Basically control signals are provided from the speed pattern generator SPG to amplifier A together with a positive feedback signal representing armature current and a negative feedback signal representing speed from the tachogenerator PG. The additional compensating signal is negatively fed back from accelerometer AG directly as an acceleration signal through resistor R4 (first derivative of speed) and as a rate of change of acceleration signal after differentiation by C6, R6. In a modification the signal from the tachogenerator is supplied both directly and through a differentiating circuit whilst the rate of change of armature current is used as the second order derivative signal and is produced by differentiating the voltage appearing across the generator interpole or across a resistor inserted in the armature circuit, Figs. 5 and 4 (not shown).
Patent GB-1456294-A (GB)
Title: Method of producing defectless epitaxial layer of ga-lium phosphide
IPC: C30B29/44
Filed: 1974-10-21
Abstract: 1456294 Manufacture of semi-conductor devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 21 Oct 1974 [19 Oct 1973] 45459/74 Heading H1K Defects and strains in an epitaxial gallium phosphide layer, the surface region of which is nitrogen-doped, grown from the vapour phase on a gallium phosphide substrate, are annealed by heating at a temperature and for a period of time lying in the area ABCDEF of Fig. 5, while the layer is protected against evaporation of any of its components and chemical action of any foreign substance on it. Such protection may be afforded by performing the heating step in a stream of hydrogen nitrogen or argon in the presence of a gallium phosphide saturated gallium melt either immediately after deposition and in the same chamber, or in a separate apparatus after cooling to room temperature. Alternatively the layer, protected by a coating of aluminium oxide or silicon dioxide or nitride is heated in vacuo, in hydrogen, either alone or mixed with nitrogen or in argon. After the annealing zinc is diffused into the layer to provide a light emitting PN junction and the improvement in emitting efficiency produced by various annealing cycles is discussed. In the preferred method the layer itself is produced by placing a sulphur doped gallium melt saturated with gallium phosphide upstream of the substrate in a flow of hydrogen and phosphine to which, after growth of a 100 Á layer ammonia is added to provide a 40 Á layer containing 10<SP>18</SP>-10<SP>20</SP> nitrogen atoms/cm.<SP>3</SP>
Patent GB-1502476-A (GB)
Title: Construction of underground tunnels and rock chambers
IPC: E21D11/00
Filed: 1975-10-31
Abstract: 1502476 Tunnels ENVIRONMENTAL ENG DR ING ALTERMAN Ltd and I ALTERMAN 31 Oct 1975 [9 Dec 1974] 45552/75 Heading E1F The walls B of a rock cavity A, e.g. a tunnel or chamber, are converted into a load bearing structure by prestressing including the steps of (a) making a plurality of bores 2 in the wall section B to be prestressed, (b) inserting into each bore a tension member 3 and rigidly connecting its inner end to the end of the bore 2 while its outer end protrudes into the cavity A, and (c) forcefully elongating the tension member 3 by biasing its protruding end against the rock surface by tension means until the resulting compression in the surrounding rock it at least commensurate with the largest tensile stress liable to appear in this region. The tension member 3 may be a solid or tubular steel bar or a steel rope and its inner end may be fixed to the bore 2 by a grout 4 consisting of 1 part (by weight) epoxy resin, 4 parts sand and 2 parts cement. Alternatively the end may be fixed by a known expanding bolt anchor. The bar 3 may be tensioned by means of a nut 7 threaded onto the end 5 of the bar 3, a washer 8 transmitting the force to the rock face, or, alternatively, by driving a wedge (not shown) between the rock wall and a projection on the bar 3. A membrane 10 of thin, liquid-impervious material may be attached to the protruding end of the bar 3 by washer 8' and nut 9 to provide a lining for the cavity, e.g. when used for the storage of granular, gaseous or liquid materials. The bores 2 are arranged in the shape of a "one-sheet hyperboloid" by drilling the bores 2 from equidistant points on a first circle 20, all at the same incident angle a, the bores 2 being drilled to the same depth with the result that they all end on a second circle 21 of greater diameter than, and axially spaced from, the first circle 20. A number of such arrangements of bores may be provided along the length of a tunnel as shown.
Patent GB-1260346-A (GB)
Title: Liquid dispensing apparatus
Inventor: PRIESTNALL THOMAS KEITH HORNBY
IPC: G09F23/04
Filed: 1969-09-16
Abstract: 1,260,346. Dispensing measured quantities of liquids. SALESPRINT & DISPLAY Ltd. 7 Aug., 1970 [16 Sept., 1969], No. 45586/69. Heading B8N. [Also in Division G5] Apparatus for supporting and for dispensing measured quantities of liquid from an inverted bottle, comprises a metering device including a movable actuating member against which a glass may be pressed upwardly whereby a measured quantity is dispensed into the glass, and an electrically operated visual indicator which is actuated when the actuating member is moved upwardly. The indicator may be a counter, or an illuminatable sign, as shown. As illustrated, upon upward movement of the actuating member 12 a contact 22 is moved into contact with a contact 21 to complete a circuit which includes battery 15 and a bulb (not shown) in holder 17. The bulb illuminates an advertisement carried by a translucent front panel (not shown) of a box 14.
Patent GB-1454668-A (GB)
Title: Circuit board sockets
IPC: H01R12/58
Filed: 1974-10-22
Abstract: 1454668 Circuit board sockets E I DU PONT DE NEMOURS & CO 22 Oct 1974 [23 Oct 1973] 45656/74 Heading H2E The subject matter is essentially the same socket as in Specification 1,356,351 with the addition of a lead penetrable sealing plug 36. The plug material may be viscous silicone rubber cured at room temperature and the plug adheres only to the interior walls of the body 12, the spring arms 20 being coated with suitable material.
Patent GB-1371521-A (GB)
Title: Thermal power plant
IPC: G21D5/08
Filed: 1971-09-30
Abstract: 1371521 Steam generators WAAGNERBIRO AG 30 Sept 1971 [2 Oct 1970] 45672/71 Heading F4A [Also in Division F1] Thermal power plant comprises a steam generator 14 heated by a nuclear reactor 12, connected by a main steam circuit 1 to a turbine 30 with a branch line 20 connecting the main steam circuit or the main coolant circuit of the reactor to accumulator plant 5, 6 which is able to supply super heated steam to a peak load turbine 39. The accumulator plant includes main accumulators 6 which may be heated indirectly by surfaces 10 or directly by steam bled from the turbine 30, and a super heat accumulator 5 which super heats steam from the main accumulators 6 in a heat exchanger 4. The super heat accumulator 5 may contain high boiling liquids, e.g. diphenyl, paraffin, liquid metal, or solids, e.g. metal ball or wire gauze, or hot water, and in the latter case steam from it may be fed to the main accumulators after passing through heat exchanger 4. Steam from the main accumulators 6 may also be superheated, particularly during the initial and final stages of their discharge, by steam drawn from the main steam circuit 1 or reheat circuits 2, 3, Fig. 3, either in heat exchangers such as 4 or in a steam ejector 40. Where a number of accumulators are provided these may be discharged in groups to lines at different pressures which supply different stages of the turbine 39. A line may be provided so that turbine 39 may be driven by steam from the main steam circuit if turbine 30 breaks down. The main accumulators 6 may be used as auxiliary feed water tanks for the main circuit 1. In another embodiment, Fig. 4 (not shown) an accumulator filled with high boiling liquid or solid L as a heat exchange surface which is first supplied with steam from branch line 20 to charge the accumulator and then with water to supply super heated steam for turbine 39. The accumulator may be arranged as a once-through steam generator or several accumulators changed to different temperatures may be provided. Where turbine 30 has an overload capacity, the accumulators may be connected to it to supply peak load requirements.
Patent GB-1496517-A (GB)
Title: Radial tyre and to processes for manufacturing a radial tyre
IPC: B60C9/28
Filed: 1974-10-22
Abstract: 1496517 Pneumatic tyres INDUSTRIE PIRELLI SpA 22 Oct 1974 [6 Nov 1973] 45754/74 Heading B7C A radial tyre comprises two plies 4, 5 of parallel metal cords with the cords of the plies crossing and making cord angles between 10-35 degrees with the mid-circumferential plane x-x, and, radially outwardly of the metal cord plies, a ply 6 of parallel textile, e.g. nylon, cords making a cord angle of 0 degrees with the midcircumferential plane. The material of the textile cords is such that it reduces in length when heated during tyre manufacture. The textile cord ply over at least part of its axial width comprises cords cut transversely of the tyre at intervals along the circumferential length of the cords. Preferably the intervals are not greater than <SP>1</SP>/ 10 , and preferably <SP>1</SP>/ 100 -<SP>4</SP>/ 100 , of the circumferential length of the cords. In the embodiment, of Fig. 2 the central region of the textile ply 6 is provided with equi-spaced cuts 9. In an alternative arrangement (Fig. 3, not shown), equi-spaced cuts (12) are also made in the lateral regions of the textile ply. The cuts 9 may be orientated in the range 45-90 degrees to the plane x-x. In the manufacture of tyres of the above type, a rubberized strip of parallel textile cords is prepared in which the cords extend parallel to the length of the strip and are continuous. The strip is attached to an extruded band, of green, tread material. Transverse cuts are made in the strip, each cut only extending across part of the width of the strip. A required length of tread material is then cut from the band and strip assembly and applied to a green tyre carcass already provided with metal cord plies 4, 5. In alternative methods, the cuts may be made in the strip prior to the strip being united with the green, tread band, and the strip and tread band may be cut to length prior to their assembly.
Patent GB-1455134-A (GB)
Title: Reciprocating piston compressors
IPC: F04B27/06
Filed: 1973-10-01
Abstract: 1455134 Reciprocating compressors W FRANKE 1 Oct 1973 [30 Sept 1972] 45802/73 Heading F1N [Also in Division F2] In a single or multi-cylinder reciprocating piston compressor, the or each piston 20, Fig. 4, is reciprocated in its cylinder 24 by a mechanism comprising a yoke member 15 secured to the piston-rod 16 and having opposed parallel surfaces inclined to the axis of reciprocation, a block 12 for relative sliding movement between the surfaces, and a crank pin 11 journalled in the block 12. The four-cylinder compressor shown in Fig. 1 has two pairs of opposed cylinders 24, 26 and 25, 27 formed in a block 3 rotatable in the inner cylindrical surface 2 of a stator 1. Each pair of pistons is connected to a respective yoke member 14, 15 their blocks 13, 12 being journalled on the crankpin 11, the latter being fixed (at 9, 10) to the stator (1) Fig. 2 (not shown). Depending on the direction of rotation of the block 3, one or other of two inlet ports 50, 73 is used with the single delivery port 51. The inlet ports 50, 73 communicate with respective inlet chambers 49, 74 having holes 77, 78, 79 and 75, 76 opening through the cylindrical surface 2 and controlled by peripherally movable perforated valve-members 80, 81. The cylinders 24-27 may be in the same plane whereby their piston-rods are bent so that their yoke members extend in two parallel planes, or alternatively the rods may be straight and the cylinders disposed in different planes. By closing the radially inner ends of the cylinders by base-plates 38-41, two stage compression may be achieved. Thus each base-plate 38-41 is provided with an inlet valve 46, Fig. 4, through which gas enters the inner ends of the cylinders from a chamber 92 during the outward strokes of the pistons. After compression the gas transfers to the outer cylinder ends through valves 53 in the pistons or by-pass ports (58), Fig. 5 (not shown) in the cylinder walls. The twin-cylinder compressor of Fig. 6 has fixed cylinders 98, 99, pressure-responsive inlet valves 104, 105, cam actuated delivery valves 108, 109, and a driven crank-pin which describes a circular path 124. In this embodiment the yoke member 114 is in the form of a ring 118 fixed to the pistonrods 112, 113 and a cylindrical element 119 provided with an inclined slot 120 for the sliding block 121. The actual inclination of the slot 120 is variable by turning the cylindrical element 119 between predetermined limits either mechanically (Fig. 5) hydraulically Figs. 7 and 8 (not shown), or electrically or pneumatically, not shown.
Patent GB-922731-A (GB)
Title: Improvements in or relating to electric control and speed indicating circuits for electric motors
Inventor: TAYLOR PETER HENRY JOHN
IPC: H02P25/18
Filed: 1961-12-21
Abstract: 922,731. Control of D.C. motors. CREED & CO. Ltd. Dec. 21, 1961, No. 45853/61. Class 38 (3). [Also in Group XXXV] When an electric motor. M reaches an upper speed limit, centrifugal contacts GC open to energize relay OS whereby contacts OS3 close to energize indicating lamp L. Opening of contacts OS2 removes a short-circuit from resistor R1 to reduce the motor speed, and change-over of contacts OS1 prepares for the connection of contacts GC in parallel with the resistor R1. The rapid opening and closing of the centrifugal contacts maintains the motor speed within precise limits. The contacts OS3 may also control additional equipment such as a teleprinter AE.