baber/WOPTO huggingface dataset:
Patent GB-657801-A (GB)
Title: Improvements in or relating to trailer vehicles
IPC: B60P1/04
Filed: 1949-02-28
Abstract: 657,801. Vehicle brakes. GRAY, E. T. Y. Feb. 28, 1949, No. 5459. Addition to 643,929, [Group XXXII]. [Class 103 (i)] [Also in Group XXXII] A tipping trailer of the type described in Specification 530,153, [Group XXXII], and the parent Specification comprises sprags 124 which are engaged with teeth 120, holes, spokes or the like on the wheels by rotation of a two-armed lever 125 slidably pivoted in a bracket 132 on the end of a longitudinally extending rod 128, the other end of which is in the form of a crank arm 129. Also journalled on the latter end of the rod 128 is an operating lever 130 connected by a spring 131 to the end of the crank 129. According to the setting of the lever 130 to one side or the other, see Fig. 2, the sprags 124 will be urged into or out of engagement with the wheels by the spring 131, the transverse slot in the bracket 132 for the end of rod 128 avoiding the necessity of simultaneous engagement. A sector plate 135 having holes 137 adapted to be engaged by pin 150 on the normal brake lever 82 whereby it may be locked in a set position is also described.
Patent GB-104777-A (GB)
Title: Improvements in and relating to Electrically Operated Indicators.
Inventor: MCLEOD THOMAS
Filed: 1916-04-13
Abstract: 104,777. McLeod, T. April 13, 1916. Range-finders for aerial warfare comprise electrical transmitters and indicators at three stations situated at the angles of a triangle. Each transmitter varies, by the operation of an arm, the current supplied to two or more indicators which may be in the form of measuring instruments of the moving coil or core type, or of the hot wire type, or a solenoid the core of which is variably loaded in accordance with its position in the coil. Each angle of a triangle is provided with the apparatus shown in Fig. 3; this consists of a transmitter T and an observation board B provided with three indicators for indicating the angles through which observation tubes u at the three stations are turned. from a vertical plane, and an indicator for indicating the angle through which the tube u at that station is turned from a horizontal plane. In the arrangement shown in Fig. 1 an arm p carrying contacts c, e<1> is adapted to be rotated about a spindle n by the operation of a tube o. The contact e is adapted to pass over nine sets of contacts s each of which is connected to a resistance r, while the contact e' is adapted to pass over a contact range t connected to a resistance r<1>. The resistance r is connected to three digits " indicators b connected in series with a battery h; while the resistance r<1> is connected to three " tens " indicators c connected in series with the battery h. Each set of contacts s is equal in length to "one of the contacts of the range t so that with the arrangement shown any number up to 90 may be indicated by the combined reading of an indicator c and an indicator b. In the modification shown in Fig. 2 the contact arms p<1>, p<2> are connected by gearing. The receiver may consist of two segmental strips carrying figures and connected to the moving coils of the instruments. The figures are moved, by varying values of current, opposite apertures placed side by side. In the modification shown in Fig. 5, the core w of a solenoid v is attached to a moving dial j and is provided with a stepped base x. The lower part of the core is contained in a casing y into which weights k of different values fit, so that as the ccre rises these weights are successively taken up by the base x.
Patent GB-1198453-A (GB)
Title: Closure Fastening Devices
IPC: E05C17/06
Filed: 1967-07-20
Abstract: 1,198,453. Burglar alarms. GENERAL ALARM CORP. 20 July, 1967 [28 July, 1966], No. 5494/70. Heading G4N. [Also in Division E2] A flexible closure fastening device (e.g. a chain lock) has one end anchored to one of a pair of co-operating closure members (e.g. a door frame 200) whilst the other end is secured to a stop 212 having an aperture 222 capable of receiving a bolt 146 carried by the other of said pair of co-operating closure members, excess tension on the flexible element 213 operating an alarm. As described, the chain 213 is tensioned by a weight 216 slidable in a guide 218 and carries a stop 220. The upper end of the chain 213 terminates in a stop 212 normally located in a slot in the door frame 200 but may be engaged by a bolt 146 (Fig. 5) after which the door may be opened to a limited extent governed by the length of chain 213. The aperture 222 has a lip 234 engageable by a catch 224 when the bolt 146 is in its protracted position. Excess tension on the chain 213 will result in tilting of the assembly against bias of a spring 238, resulting in operation of an alarm switch 246. Protected door locks:-Fig. 2 shows a mortise lock comprising a bolt 150 operated by, a cylinder lock 262. When in its retracted position shown, a switch 282 turns on an indicator lamp (not shown) on the inside of the door. An acoustic alarm 176 powered by a battery 178 may be operated by a manual switch 134 or by other contacts described below. A pin 292 passes through a slot in the bolt 150 and is provided with a spring (Fig. 9, not shown) so that any attempt to force the door displaces the bolt 150 against a switch (298) so as to operate an alarm. Thyristor-controlled alarm circuit.-The gate of a thyristor 374 (Fig. 10) is normally connected to cathode by a loop, including the emergency switch 172, the chain anchor microswitch 246, a microswitch 298 (operated by forcing the bolt 150) and a security microswitch 268. Opening of any of these switches turns on the thyristor 374 which energizes relay 372, operating an acoustic alarm 174 and a remote alarm relay 384 from a battery 178 floating across a mains supply 356. The alarm is shutoff by means of a key-operated switch 324. Supply 356 is disconnected by relay 390 in the event of power failure. The outside of the door may be covered by two sheets of conductive foil 396, 400 separated by the insulating sheet 398 so that any attempt to penetrate the door by means of a metal tool will short-circuit sheets 396, 400, energizing relay 392 and operating the alarm. Nullifying devices for initiated persons.- The cylinder lock 262 is longer than normal, having a slot (262, Fig. 6, not shown), formed in its extended portion so that if the lock is operated by a key of normal length, security switch 268 will open, initiating the alarm, whereas when opened by an authorized person using an extra long key, switch 268 is not operated. The alarm is shut off by a keyoperated switch 324.
Patent GB-412149-A (GB)
Title: Improvements in metal vapour rectifiers
IPC: H01J13/14
Filed: 1934-02-19
Abstract: 412,149. Metal - vapour rectifiers. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London. Feb. 19, 1934, No. 5506. Convention date, Feb. 24, 1933. [Class 39 (i).] A cathode insertion consists of intercommunicating cells formed by intersecting porous or apertured vertical walls, 3, 4. Further subdivision may be obtained by means of horizontal walls 5. The walls may be formed of iron, or of an alloy or metal the density of which is greater than that of the cathode liquid, or of glass, porcelain, quartz or of alumina which is lightly sintered to obtain a porous material. The insertion may be formed by casting porcelain containing sawdust to obtain a porous material. A metal insertion may be cast or formed of strips and, when lighter than mercury, is secured to the container. When the insertion is formed of insulating material, projecting metallic parts are provided for fixing the cathode spot and to facilitate cooling of the cathode.
Patent GB-450329-A (GB)
Title: Method of and apparatus for illuminating displays
IPC: G09F19/12
Filed: 1935-02-20
Abstract: 450,329. Changing signs. VIBRA-LITE, Ltd., 1411, Crescent Street, Montreal, Canada. Feb. 20, 1935, No. 5519. Convention date, Nov. 1, 1934. [Class 3 (i)] In apparatus in which the appearance of a display is altered by change of colour of the light with which it is illuminated, two sources of illumination 21, 22 are provided, the display being lit continuously by the source 22 and intermittently by the source 21. The sources of light may themselves be of the required colours, or filters 25, 26 may be interposed in the beams. The source 21 may be an electric lamp intermittently lit by a motor driven switch 34, or the beam may be interrupted at intervals by a shutter 27 oscillated into and out of the beam. The shutter is mounted on a shaft 28 carrying a spring-retracted armature 30 which is attracted by a magnet 31 energized by the switch 34. The design is in two non- neutral and preferably complementary colours, corresponding to those of the illuminating rays, and the frequency of illumination by the intermittent colour is such as to give a pulsating movement to the display, with apparent periodic change of size, due to persistence of vision. Specification 313,459, [Class 3 (i)], is referred to.
Patent GB-180052-A (GB)
Title: Improvements relating to compressors for air or other gases
IPC: F04B31/00
Filed: 1921-02-17
Abstract: 180,052. Nicholson, A. H. Feb. 17, 1921. Actuating pumps by fluid-pressure motors.- Relates to compressors of the kind in which pistons in the same cylinder are driven in opposite directions on the outward stroke by the combustion of liquid or gaseous fuel compressed and ignited on the inward stroke in the space between the two pistons, the return strokes being effected by air compressed in cushioning spaces on the outward strokes or by compressors. actuated by the pistons. The movements of the main pistons are equalized by hydraulic plungers operated by these pistons or by compressing- devices actuated by them, and communicating by oil &c. pipes with plungers rigidly connected with a plunger reciprocating in a pneumatic cylinder. Fig. 1 shows a compressor which comprises a pair of pistons 2, 3 working in a combustion cylinder 1 and each connected by its rod to a corresponding piston 8, 9 in a compression cylinder 6, 7. Hydraulic plungers 16, 17 secured to the pistons 8, 9 reciprocate within pipes 19, 18 containing oil or other liquid which acts on a synchronizing device comprising plungers 20, 21 secured to a piston 22 moving within a cylinder 23 which is in communication with the ends of the combustion cylinder 2 through a valve 25 with a reservoir 24 or with the atmosphere. The middle space of the combustion cylinder is connected by a pipe 31 with a cylinder 30 containing a piston 29 the rod of which controls the ignition gear or the oil admission, in accordance with the combustion .cylinder pressure, Starting is effected by establishing atmospheric pressure at the end of the combustion cylinder by means of the valve 25. The inlet port 4 of the combustion cylinder may be formed in two parts for separate entry of gas and air, the gas port being the last uncovered. In working, the return stroke is effected by the compressed air in the cylinders 1, 6, 7, 23. In a modified form of apparatus, the ends of the combustion cylinder are connected by a pipe through which air is admitted, this air after compression being led by a pipe to the inlet port; the compressor cylinders are also connected together by a pipe with the valve 25. In a further modification, the compression is effected solely in the ends of the combustion cylinder; these ends are formed with a clearance space providing a cushion of air which effects the return stroke.
Patent GB-180055-A (GB)
Title: Improved means for heating the working charges in internal combustion engines
IPC: F02F7/00
Filed: 1921-02-18
Abstract: 180,055. Kennedy, H. Feb. 18, 1921. Vaporizers, external.-In engines, particularly those of the opposed cylinder type, an extension of the timing case cover 2, Fig. 4, supports the magneto and has formed within it a bearing 3 for the starting handle and induction passages 1<a>, 1<b> which are kept hot by lubricating oil in the space 5 communicating either directly or by pipes with the crank-chamber C. Lagged pipes lead the charge from the passages 1<b> to the cylinders.
Patent GB-563795-A (GB)
Title: Improvements in or relating to methods of making hollow stemmed poppet valves, and the improved valves resulting therefrom
Filed: 1943-04-08
Abstract: 563,795. Poppet valves. THOMPSON PRODUCTS, Inc. April 8, 1943, No. 5634. Convention date, March 11, 1942. [Class 7 (vi)] [Also in Group XXII] A hollow-stemmed poppet valve is provided with a cold-worked stem. This may be done by progressively hammering the stem of a valve 10, which may have been formed by machining, forging, or extruding, by hammer dies 13, 14 from the throat 18 to the open end, while supported internally on a mandrel 20 and at a temperature below the recrystallization range. The mandrel is preferably grooved so as to form ribs in the bore of the valve. If desired, the end of the stem may have an enlargement 10d which is not hammered over the mandrel 20, but in a second operation is cold-forged about a mandrel 27, Fig. 9, to leave a small hole which can be closed by a pin or, if the metal is suitable, cold-forged to close the end entirely, Fig. 11. In either case sodium or other coolant 12a is introduced before closing.
Patent GB-1388852-A (GB)
Title: Nozzle structure for jet propulsion engines
IPC: B64C29/00
Filed: 1971-03-01
Abstract: 1388852 Deflecting propulsion jets HAWKER SIDDELEY AVIATION Ltd 1 March 1972 [1 March 1971] 5692/71 Heading B7G An aircraft by pass gas turbine engine 11 has the by pass air efflux duct bifurcated to pass on each side of a gas generator 14, both cold air ducts 13 and the hot gas duct having jet deflector nozzles 15 and 16 respectively operable between positions which give horizontal and vertical thrust. Each nozzle has upper and lower doors 17 pivotable at their forward edges between positions co-planar with the upper and lower nozzle surfaces and positions in which they close the nozzle exits. Further doors 22, pivotable about their outer edges, close or open apertures 19 in said nozzle surfaces, the apertures being formed with curved guide vanes 20 and further, louvre-type, doors 21. In operation, for forward thrust, doors 21, 22 are closed and doors 17 open. For jet lift, doors 17 are closed and the lower sets only of doors 21, 22 are opened. For pitch control upper and lower doors 21, 22 are operated selectively and all the doors are operable by a common control means whereby the outflow area for the hot gas and cold air is maintained substantially constant.
Patent GB-245709-A (GB)
Title: Device for change speed control by means of a fluid under pressure
IPC: F16H61/00
Filed: 1925-03-02
Abstract: 245,709. Schneider et Cie. Jan. 7, 1925, [Convention date]. Variable-speed gearing is operated by motive cylinders such as H, K, Fig. 1, one for each speed, acting by compressed fluid such as air, each motive cylinder being controlled by a separate distributing cylinder P, Figs. 2 - - 7, selection being effected by a hand lever M moving in a gate D, Fig. 8. The whole control unit may be duplicated as shown at C and E in Fig. 1 so that control may be effected from different stations in, say, a vehicle. A control unit is brought into play by turning a main valve U. The neutral position 5 is shown in Figs. 3, 8. The pistons P are all held in inactive position by compressed air and the leak R<1> of a locking lever R engages a notch r<1> in the gate D. The motive cylinders are all open to exhaust. In changing speed, the first movement is to unlock the lever R bringing it to the position shown in Fig. 4. Acentral rod S is depressed', turning a lever T and operating a fifth piston P<1> which disengages the main driving clutch. The lever M is doubly pivoted at X and is movable into positions 1, 2, 3, 4, Fig. 8, in the gate D to operate the four pistons P severally to actuate four motive pistons and bring in four different speeds in the transmission gearing. In positions 1 and 3, shown in Fig. 5, the lever R locks by hooking over the end of the gate D. The two pistons P are actuated by direct push. In positions 2 and 4, shown in Fig. 6, the lever R locks by stubbing against the opposite end of the gate slot. The two pistons P are displaced in the same manner as the others by a lever N shown also in Fig. 2. Indication is afforded by four manometers m, Fig. 8. In the motive system, air cushions and springs are used to reduce shocks in speed-changing.
Patent GB-348716-A (GB)
Title: Improvements in or relating to telephone transmitters
IPC: H04R21/02
Filed: 1930-02-21
Abstract: 348,716. Microphones. STANDARD TELEPHONES & CABLES, Ltd., POCOCK, L. C., NEILSON, C. B. V., and BLACKBURN, R., Columbia House, Aldwvch, London. Feb. 21, 1930, No. 5809. [Class 40 (iv).] In a telephone transmitter of the granular type the chamber 3 containing the carbon granules is of a flexible construction and associated at its rear end with a fixed electrode 9 while at its front end it is connected to the diaphragm 1 so that the side walls of the chamber move with the diaphragm. Preferably the chamber 3, which may be lined with paper, is of cylindrical shape and made of a light flexible material such as silk, cellulose acetate or the like, the side walls being relatively stiff, while the rear end is flexible so that the annular portion thereof beyond the electrode 9 accommodates the movements of the diaphragm. A front electrode 4 plated on its inner surface with gold or other non- corrosive material is inserted in a central aperture in the diaphragm so as to close the chamber 3 and is connected to the diaphragm by tongues 6, which pass through slots in the diaphragm and are bent back over a collar 8 on the chamber 3. The diaphragm is clamped between rings 12, 13 with a backing of paper rings 21 for damping purposes, while a protective membrane 22 and a perforated brass cover 23 are also incorporated. The rear electrode 9 is secured to the casing 11 by means of a screw-threaded stem 10 that passes through an opening 18 in the casing and has threaded on to it a first inner insulating washer 14, a second non- rotatable washer 15, an exterior washer 19 and a clamping-nut 20. In a modification, Fig. 2, the stem 10 is arranged to pass through an insulating sleeve 24 that fits tightly into a cylindrical part of the casing 11, the end of the stem being spun over a metal washer 25 bearing against the sleeve 24.
Patent GB-163809-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/04
Filed: 1920-02-26
Abstract: 163,809. Ball, F. L., and L.W. Tools Co., Ltd. Feb. 26, 1920. Bearings.-A bushing for a bearing is made by consolidating a lining H of antifriction or other metal in sub-divided form mixed with graphite in an outer tube A by means of a hollow ram F, Fig. 1, working between the tube A and a mandrel B. The tube is arranged within a housing C, and the whole is kept concentric by a spigot E on a base-plate D. Metal washers G, G<1> are placed at the ends of the lining, and the ends of the tube A are flanged over the washers by tools J, G, Fig. 2. The finished bearing, comprising the tube A and its lining, may be turned in a lathe before removing the mandrel. The tube A may be cast with inturned edges, in which case the lining is consolidated by an expanding mandrel or internal rollers. In a modification, the ram and mandrel are formed as one sliding member N, Fig. 5, having a shoulder N<2> to constitute the ram. The lining M is consolidated against a steel ring O fitting on a shoulder L<1> in a housing L. After consolidation, the lining is raised by an ejector P having projections P<1> sliding in slots L<3> in the housing. The end portion N<3> of the member N is tapered to facilitate removal of the lining. The completed lining, which is formed in sections, and retaining washers G, G<1> are then consolidated in a tube A, Fig. 7, by tools D, Q, and the ends of the tube are flanged afterwards as in Fig. 2.
Patent GB-718056-A (GB)
Title: Improvements in or relating to automatic telephone systems
Inventor: MURRAY LAWRENCE JOHN
IPC: H04Q3/00
Filed: 1952-03-06
Abstract: 718,056. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Feb. 25, 1953, [March 6, 1952], No. 5813/52. Class 40 (4). A 20-line automatic exchange consists of a single cross-bar switch, connections being established over link circuits connecting two bridges thereof. Subscribers are associated in pairs with one of ten select magnets SM1-10, discrimination within the pairs being effected by two auxiliary magnets SA, SB. A calling subscriber 21 (say) therefore operates SM1 and SB and also causes the operation of one of the bridge magnets BR1, 3, 5, 7 associated with the incoming side of a free link L1, L4 and one of the bridge magnets BR9, 10 associated with free control circuits SCCI, 2. The select magnets are then released. The control circuit receives the dialled digits and in one embodiment tests the free or idle condition of the wanted line over a direct path. The control circuits perform such tests, as also the completion of the connections, on a one-at-a-time basis. If the wanted line is free it ceases the operation of the pair of select magnets defining the wanted line. The control circuit also operates that one of the bridge magnets BR2, 4, 6, 8 corresponding to the outgoing side of the seized link over a circuit already established by the cross-bar switch between the control circuit and the incoming side of that link. Ringing and supervision are then controlled in the link and the select magnets released. If the wanted line is busy, the control and link circuits are released and busy tone is reverted from the calling subscriber's line circuit or, alternatively, the link may be retained in the connection and busy tone reverted therefrom, the link being forcefully released after a predetermined time. In an alternative embodiment the connection is always established between the link and the wanted subscriber, busy testing then being performed by the link.