baber/WOPTO huggingface dataset:
Patent GB-1377823-A (GB)
Title: Visual display system
IPC: G09B9/06
Filed: 1972-10-24
Abstract: 1377823 Television simulator SINGER CO 24 Oct 1972 [26 Oct 1971] 42607/73 Divided out of 1377822 Heading H4F In a colour television system for simulating the view seen by the operator of an amphibious landing craft, using vertical raster scanning of a model of the sea and land, the video signals are modifiable by a limited visibility function, e.g. fog, which attenuates the video signal with increasing simulated range (height of line scan on display) until at a predetermined "limit of visibility" range the video signal is blanked out. For an object 15, Fig. 1, projecting above the general model plane 13-e.g. a buoy projecting  above the sea, and where the "limit of visibility" range is 17a, the top of the object will be incorrectly cut-off. The. limited visibility function 23, Fig. 2 pertaining is therefore modified, Fig. 3, on detecting the foot of object 15 to keep its value at that as pertaining at the time of said detection until the scan leaves the object whereupon it returns to its normal value. If the sea is shown in the model as a mixture of black and blue-depth indicating contours, whilst object 15 is shown in full colour, the detection of the foot of object 15 can be on the base of a detected increase in comparator 35 in the value of a non-blue component of the video signal from colour camera probe 11. Prior to the detection the unmodified limited visibility function generated by effects generator 19 is fed via gate 37 to control video electronics 29 receiving the video signal. On the detection, the pulse from comparator 35 triggers a one shot trigger circuit 39 which causes a sample and hold circuit 41 to store the value of the limited visibility function then pertaining, and also causes gate 37 to switch from generator 19 to the circuit 41. The detection of the top of the object 35 causes the return of gate 37 to the output of generator 19.
Patent GB-1303694-A (GB)
IPC: G11B7/135
Filed: 1970-09-07
Abstract: 1303694 Magneto-optic transducing INTERNATIONAL BUSINESS MACHINES CORP 7 Sept 1970 [29 Sept 1969] 42713/70 Heading G5R [Also in Division G2] Superimposed angularly spaced recordings on a moving magnetic store are read out individually by a magneto-optic transducing system. In the arrangement shown, recorded signal fields on a magnetic tape 10 are transferred, with or without the aid of a bias magnet 14, to a magnetic film 12 on one face of a prism 24, and the film is illuminated by plane polarized monochromatic light. Reflected light proceeds, via an analyser 28, to a spatial filter 34 in the form of a rotatable slit, the slit being set to pass the Fraunhoffer bright spot diffraction pattern (Fig. 2) corresponding to recorded signals in a given orientation on the magnetic tape 10; the detecting system 48, wich may be photographic, an array of photocells or photodiodes, or a T.V. camera. therefore only receives energy from the selected recorded signals. If the tape is of high reflectivity, film 12 may be omitted and the tape illuminated directly.
Patent GB-970865-A (GB)
Title: Improvements in and relating to electrical capacitors
IPC: C23C14/50
Filed: 1960-12-14
Abstract: <PICT:0970865/C6-C7/1> <PICT:0970865/C6-C7/2> <PICT:0970865/C6-C7/3> <PICT:0970865/C6-C7/4> A cylindrical capacitor, Fig. 1, comprises an insulating substrate 10, e.g. glass, and four metallic electrode layers 13, 15, 17, 19 formed successively by evaporation, and dielectric layers 14, 16, 18 formed successively by oxidizing the electrodes.  Layers 13, 17 and 15, 19 are connected to lead wires 11, 12 respectively. A flat capacitor having electrodes 21, 23, 27, 30, dielectric layers 22, 26, 29 and electrode terminal extensions 24, 25, 28, 31 is shown in Fig. 3.  The manufacturing process of such capacitors includes cleaning the glass substrate, e.g. by exposing it to a glow discharge, evaporating metal (preferably aluminium) on to the substrate at a pressure of about 10-5 mm. Hg. and a temperature of about 1000  DEG C. for not more than five minutes. The dielectric oxide film is produced anodically by using a non aqueous electrolyte (e.g. a mixture of oxalic acid and propanediol or ethylene glycol) or an electrolyte consisting only partially of water (e.g. a mixture of water and oxalic acid with propanediol or ethylene glycol.  The anodizing voltage is between 10-45 volts and the time of the process from 10-20 minutes.  Further metallic and dielectric layers are similarly formed.  The metallic films are applied in a bell jar in which capacitor units 56 are rotatably mounted, heating coils 61, 62 in the bell jar melting the metal for evaporation, Figs. 4 and 5. The capacitors are supported in receptacles 55 which serve not only to rotate the capacitor units but also to mask that portion thereof on which the metallic film is not required.  At their upper ends the units 56 pass through holes in a plate 58 and are held by spring clips in a further plate, Fig. 6 (not shown), lowered on to the plate 58, to remove them from the bell jar and transfer them to the anodizing bath.  Reference has been directed by the Comptroller to Specification 863,596.
Patent GB-1260606-A (GB)
Title: Improvements in or relating to retroreflective light reflectors
IPC: F21V7/22
Filed: 1970-09-09
Abstract: 1,260,606. Reflectors. SUMITOMO ELECTRIC INDUSTRIES Ltd. 9 Sept., 1970 [1 Oct., 1969], No. 43136/70. Heading B2E. A stainless retroreflective light reflector has coating of a transparent film of a fluorinecontaining polymer at the exposed surface. The fluorine-containing polymer may be a fluorinated ethylene-propylene copolymer, polytetrafluoroethylene, polyvinylidene fluoride or polyvinyl fluoride. A preferred construction has a base sheet paper having a layer of aluminium attached by means of an adhesive which is covered with a retroflective light reflector composed of powder-like glass beads arranged closely in one layer. Over this is a pattern print layer producing a mark on the base plate, a first protective layer and a second protective layer of fluorine-containing polymer. The first protective layer may be omitted.
Patent GB-950555-A (GB)
Title: Improvements in arresting devices for aeroplanes
IPC: B64F1/02
Filed: 1962-11-15
Abstract: 950,555. Aircraft arresting gear. BORGS FABRIKS A.B., P. B. FONDEN, and K. O. T. WALANDER. Nov. 15, 1962 [Feb. 8, 1962], No. 43283/62. Heading B7G. Each end of an arresting wire or net for arresting a landing aeroplane is connected to a brake 1, and a point 5 midway between the midpoint 10 of the wire or net and each brake 1 is attached by a wire 11 to an auxiliary brake 2 beyond the brake 1 as seen from an approaching aeroplane. In Fig. 1 an arresting wire 13 shown in different positions 3, 6, 7, 8, 9 which show the movement of the wire during the arresting phase. The left-hand side of the Figure shows, for comparison, the movement of a wire without an auxiliary brake. It will be seen that the side with the auxiliary brake becomes taut (at 8) before the left-hand side, and thus reduces the shock loads on and oscillations in the wire. The joint at 5 may be self-releasing so that a shorter length of wire 11 may be used. The wire 11 and brake 2 may also be replaced by a two-part cable, one part of steel rope and the other part of nylon rope (see Fig. 2, not shown). More than one auxiliary brake or more than one main brake may be disposed on each side.
Patent GB-1026824-A (GB)
Title: Improvements in or relating to inflatable boats
IPC: B29D22/02
Filed: 1964-10-26
Abstract: 1,026,824. Inflatable boats. NAUTIQUE SPORTIVE. Oct. 26, 1964 [Oct. 26, 1963], No. 43512/64. Heading B7A. An inflatable boat comprises two inflatable elements 2, 3 each having a bent nose portion 7, 8 by which they are joined and each formed of two sheets 9, 10 of flat material joined at their edges, e.g. by gluing or vulcanizing. The projecting portions of the seams are folded and fixed to the surface of the elements, and the nose joint is reinforced by fabric wrapped round it. The parts 5, 6 of the elements are preferably cylindrical or conical, to minimize the wastage of material.
Patent GB-922546-A (GB)
Title: Tubeless pneumatic tyre wheel
IPC: B60B25/22
Filed: 1961-12-06
Abstract: 922,546. Tubeless-tyre wheel rims. GENERAL MOTORS CORPORATION. Dec. 6, 1961 [Jan. 10, 1961], No. 43684/61. Class 144 (2). In a divisible wheel rim, for use with a tubeless tyre 22, comprising a detachable tapered bead-seating ring 28 sealed to the rim base 10 by an 0-ring 42 and retained on the rim base by a split locking ring 44 engaged in a gutter 48 in the rim base edge 26, the ring 28 overlies an axial groove 50, in the rim base, which opens at its axially inner end, into the air space of the tyre 22 and at its axially outer end, axially inwardly of the 0-ring 42, merges into a passage 56 which extends through the rim edge 26 to open on the axially outer side face of the edge 26 where it screw-threadedly receives a tyre inflation valve 62. As shown, the ring 28 has a radial flange 30 at its axially outer edge to retain a separate detachable tyre bead-retaining ring 32.
Patent GB-1014021-A (GB)
Title: Improvements in electric-circuit selectors
Inventor: DEAKIN STANLEY THOMAS
IPC: H01R24/58
Filed: 1961-12-06
Abstract: 1,014,021. Plug-boards. SEALECTRO CORPORATION, and S. T. DEAKIN. Nov. 29, 1962 [Dec. 6, 1961], No. 43779/61. Heading H2E. In a circuit selector of the type described in Specification 934,627 in which the contacts 10 of each contact strip have hooks 15 which passes through holes in the base 1 to secure the contact strips in place, the base 1 is made of electrically conductive material and is insulated from the contact strips with insulating strips 3 on each face. The two strips have rows of square holes 5 with semicircular bosses 6 on one side which form insulating bushes lining the holes. The insulating strips may be sheets or wider strips covering several rows of holes and the bushes may be formed wholly on one strip and enter into holes in the other. In a further embodiment the holes in the plate are lined with individual bushes formed of polythene (Fig. 3, not shown).
Patent GB-1182217-A (GB)
Title: Method and Apparatus for Automatically Forming a Seam.
Inventor: BOUCRAUT LOUIS
IPC: D05B65/00
Filed: 1968-09-18
Abstract: 1,182,217. Sewing. LES FILS DE VALTON & CIE. 18 Sept., 1968 [20 Sept., 1967], No. 44398/68. Heading D1G. The stitch chains between successive workpieces are cut by a cutter 12 and then carried by a draught of air in a direction opposite to the feed direction to be subsequently held in place on the face of the next workpiece by the following chain stitches used for seaming the workpiece. Before the chain is cut a few chain stitches are produced in the workpiece. A suction tube 16 and/or a blowing tube 14 are provided to move the thread chain. The conveyor moving the workpieces is stopped during cutting and is controlled by photocells 11, 18.
Patent GB-1433936-A (GB)
Title: Variable area jet propulsion nozzles
IPC: F02K1/12
Filed: 1973-09-24
Abstract: 1433936 Jet propulsion nozzles - variable area SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 24 Sept 1973 [6 Oct 1972] 44578/73 Addition to 1233694 Heading F1J The invention relates to a jet propulsion nozzle of the variable area type which comprises a series of flap members 102 each pivotally mounted at a tangential axis A at the downstream end of fixed nozzle structure 110, and each movable by means of an actuator 103 having an operating rod 104. Follower flaps 122 are disposed between adjacent actuated flaps 102, being maintained thereagainst in operation, by pressure of the gas stream. A pair of side plates 114a, 114b is associated with each actuated flap, the side plates being pivotally mounted on fixed structure as indicated at points K, G, H, J. The actuator 103 is pivotally mounted at its upstream end between the side plates as indicated at G. The pivoted flap 102 comprises a flap portion 102x and a pair of bell-crank levers 102y secured thereto, the flap being pivotally mounted between the side plates at points A. The upper ends of the bell-crank levers 102y have pivotally connected thereto links 106a, 106b which are pivotally connected at intermediate points D to levers 105, the levers 105 being pivotally connected at axes B at the downstream ends of the side plates 114a, 114b. The axes A, B, C, D, are disposed at the corners of a parallelogram, the side AB of which is fixed. The downstream ends of the links 106a, 106b are pivotally connected about an axis E to a crosspiece 107 to the mid-point of which is connected the downstream end of the actuator rod 104 by means of a pin 125. The arrangement is such that the height d2 of the point E above the side AB of the parallelogram is always less than the height h2 of the parallelogram.
Patent GB-1359531-A (GB)
Title: Method and apparatus for detecting and monitoring venous blood  volume changes
IPC: A61B5/053
Filed: 1971-09-24
Abstract: 1359531 Electro-medical apparatus HB WHEELER 23 Sept 1971 [24 Sept 1970] 44693/71 Heading G1N Physiological conditions associated with blood volume changes are detected by determining the change in impedance of a body section occurring when venous return to the heart is temporarily blocked. In this manner venous occlusions and internal haemorrhages may be detected. Also, the blood flow-rate can be determined by dividing the change in impedance by the time over which the change occurs. As shown, for detecting venous occlusions in a leg a pair of current source electrodes 12 and a pair of voltage pick-up electrodes 14 are attached to the leg. Figs. 1a, 1b (not shown), and voltages E 1 , E 2  corresponding to the pick-up voltage and the energizing current are applied to a display (recorder, CRO) 46, a phase sensitive detector 48 and transformer primary windings 70a, 70b. The body impedance is first determined in a normal condition and its value is stored at 54 by closing switch 52a momentarily. The venous return to the heart is then temporarily blocked, e.g. by deep inspiration, expiration against a predetermined resistance or external pressure of a cuff, and the body impedance is stored at 56 by closing switch 56 momentarily. An amplifier 58 provides an output proportional to the difference between these impedance values. This output is applied via switch 60, to an amplifier 62, the input resistor 66 of which is variable. The transformer secondary windings 70c, 70d are arranged in a bridge circuit with resistor 74 and adjustable resistor 76, the bridge being rebalanced via motor 82 which adjusts resistor 76 and resistor 66. Thus resistor 66 has a value directly proportional to the normal impedance of the body section and thus the output of amplifier 62 is proportional to the ratio of the impedance difference to the normal impedance. This can be displayed as a percentage on a digital indicator 68 and an alarm may be provided if this percentage change is less than a pre-set value, preferably 0À2%, thus indicating a venous occlusion. As an alternative the impedance difference may be related to the body volume between the measuring electrodes.
Patent GB-966683-A (GB)
Title: Filter
IPC: B01D25/26
Filed: 1962-11-27
Abstract: 966,683. Filters. AIRCRAFT APPLIANCES & EQUIPMENT Ltd. Nov. 27, 1962 [March 6, 1962], No. 44734/62. Heading B1D. In a filter of the type having a filter barrier comprised of a series of generally flat filter elements 28 joined along opposed edges to dispose them in zig-zag arrangement, the spacers 34, 36 have undulating surfaces comprised of crests and valleys and are disposed between adjacent filter elements 28 to separate and support them, the spacers being of at least different types and adjacent spacers being of different types to the extent that a crest of each spacer reacts against a crest of its adjacent spacers making therewith an angle of 30-150 degrees, said spacers having passage means therein (valleys 46, flow paths 54) to permit the flow of fluid between the elements and through the filter barrier. As shown, the filter elements and spacers are annular, crests in spacers 34 extending radially thereof and crests in spacers 36 extending annularly thereof, spacers 36 being formed with radial cut-outs 54 to permit fluid flow, and the crests of alternate spacers reacting against each other at 90 degrees. Undulations of the spacers may vary in depth from one edge to the other, alternate spacers being of opposite depth variation. Thus spacers 34 have the greatest undulation depth at the outer edge, spacers 36 have the greatest undulation depth at the inner edge. Sealing at the inner edges is effected by rings 60 and the unit is secured by bolts 42, top plate 38 and bottom plate 40. Two different housings which may be used are shown in Figs. 4 and 5, the arrows indicating the direction of fluid flow. The filter elements may be made of sintered, woven or felted materials of metal or mineral or organic nature.
Patent GB-1024915-A (GB)
Title: Elastomeric compositions and method of making elastomeric compositions
Inventor: CARR CLIDE ISOM
IPC: C08L81/00
Filed: 1962-11-27
Abstract: A flammable cross-linked, saturated synthetic elastomer composition comprises per 100 parts of elastomer, (A) 1-10 parts of antimony oxide, sulphide or ester, and (B) 1/3 -2 times the weight of (A) of a chlorine containing material having an aliphatic C-Cl group adjacent to an aliphatic CH group and having a 1.p. above 75 DEG  C. at 1 mm. Hg, the sum of the weights of (A) and (B) not exceeding 13 1/3 .  The elastomer may be polyethylene, an ethylenepropylene copolymer or butyl rubber.  The chlorine containing material may contain 10-80% available chlorine, have a molecular weight above 400 and be polyvinyl chloride, chlorinated or chlorosulphonated polyethylene, chlorinated polystyrene, polyvinylidene chloride, polychloroprene, polymerized 2-chloroethyl vinyl ether, a polymerized a - or b -chloro ketone, ester, acid, anhydride, nitrile or aldehyde, 2-chloroether or alcohol or a chlorinated paraffinic hydrocarbon.  The composition is prepared by mixing the antimony compound, chlorine, containing material and elastomer with optionally 4,41-thio-bis-(6-tert. butyl-m-cresol), carbon black, and cross-linking the mixture with 2,5-bis-(tert. butylperoxy)-2,5-dimethylhexane, dicumyl peroxide or stannous chloride.
Patent GB-936604-A (GB)
Title: Improvements relating to index mechanisms
IPC: B23F23/08
Filed: 1961-12-14
Abstract: 936,604. Gear cutting. GLEASON WORKS. Dec. 14, 1961 [Feb. 6, 1961], No. 44879/61. Class 83 (3). An index mechanism for a gear-cutting machine comprises a housing 8, a rotatable and axially movable shaft 26 having a pin 27 for engagement in slots 31 of a work-carrying spindle 9 to index the latter, an hydraulic vane motor 38, 39 for rotating shaft 26, an hydraulic piston 34 for moving pin 27 on shaft 26 axially into and out of engagement with slots 31 and valve means 56 for controlling motor 38, 39 and piston 34. A gear-wheel 6 is held on spindle 9 by a chuck 11, the latter being controlled by an hydraulically actuated draw rod 12. Spindle 9 is supported for rotation in housing 8 by roller 21 and is clamped during the cutting of a tooth in the work by supplying hydraulic pressure to an annulus 17, thus forcing faces 15, 16 into contact. Piston 34 is rotated with shaft 26 and has peripheral grooves which engage ports in a cylinder 33 to control its own reciprocating motion and also the supply of pressure to annulus 17. In operation, fluid is pumped from a sump 43, Fig. 6, to a reversing valve 56 and thence to chamber 41 in motor 38, 39 and also to the bottom of piston 34 and to annulus 17, thus holding spindle 9 stationary during cutting. At the conclusion of cutting, a switch 62 is actuated by a cam 63 on the cutter spindle causing reversal of valve 56 and clockwise rotation of vane 39. Shaft 26 along with piston 34 rotates and annulus 17 is exhausted, thus releasing spindle 9. Pin 27 enters a slot 31 and indexes gear 6 one pitch, until pressure is again supplied to annulus 17 and spindle 9 is clamped and piston 34 moves downwardly to disengage pin 27 from slot 31. Cam 63 again reverses valve 56 and shaft 26 is moved to its previous angular position. For accurately positioning shaft 26, plate 32 has notches 65 engageable by a pawl 66 which is lifted clear of notches 65, when shaft 26 is in its upper position and pin 27 enters a slot 3, by a cam 71. The pawl is held against the plate by a lever 74.
Patent GB-1366745-A (GB)
Title: Connecting rods of internal combustion engines
IPC: F16C7/02
Filed: 1972-09-29
Abstract: 1366745 Connecting-rods MITSUI SHIPBUILDING & ENG CO Ltd and JAPAN SHIPS & MACHINERY DEVELOPMENT ASSOCIATION 29 Sept 1972 [30 Sept 1971] 45030/72 Heading F2T A connecting rod 1 for an internal combustion engine is split transversely into two sections 2, 3 connected by bolts 4 and has, in one of the sections, a single hydraulic jack 6, Fig. 2, for use in connecting or disconnecting the sections. The jack comprises a piston 13 slidable in a cylinder 8 secured to the section 3 by bolts 7. The piston is biased to its non-operative position by a spring 20 compressed between the cylinder and a shoulder 21 on a rod 17 having a bore 22 for the supply of cooling oil to the piston 23. A guide pin 10 extending through the cylinder has a passage 9 communicating with a passage 11 on the section 3 through which pressurized oil from an external source can be supplied to a chamber 14 to raise the piston. To assemble the sections 2, 3 a first liner is interposed at the interface 5<SP>1</SP> and the bolts 4 are tightened. The jack is then pressurized to raise the piston 13 and increase the gap at the interface and the first liner is replaced by a second and thicker liner. The jack is then depressurized leaving the bolts elongated by the difference in thickness of the two liners and the sectors rigidly connected. To disconnect the sections, the jack is pressurized to enable the liner to be removed and after depressurizing the jack, the loosened bolts 4 are removed to separate the sections.
Patent GB-1450422-A (GB)
Title: Plate-type filter press
IPC: B01D25/21
Filed: 1973-09-27
Abstract: 1450422 Filter press plate and associated diaphragms EBERHARD HOESCH & SOHNE 27 Sept 1973 [17 May 1973] 45345/73 Heading BID A filter press plate 10 having an associated pair of diaphragms 18, one on each face, for inflation to press the filter cake, is characterised by the method of sealing the diaphragms around a bore 12 in the plate. Each diaphragm is formed with a hole in alignment with the bore and an integral cuff 20 around the hole, the cuffs extending into the bore from opposite ends and having enlargements 21 at their ends which are in mutual contact and held within an annular groove 14 in the bore wall. A circlip 24 having an annular groove in its outer face provides an inner seat for the enlargements 21. The enlargements 21 may be interlocking as shown in Figure 1 or may merely abut without interlocking (Figs. 5 and 6 not shown). They may be held in the groove 14 by adhesive tape. A supporting ring, 29 interlocking 30 with the circlip to prevent axial movement. may provide inner support for the circlip. Figure 3 shows filter cloths 32 arranged on the plate surface and clamped against the frustoconical outer surface of the circlip and supporting ring 29 by clamping rings 35 and 36 and threaded sleeve 37. The sealing of the diaphragms by ribs 19 at the edge 16 of the filter plate is described and claimed in application Specification 1499013.