baber/WOPTO huggingface dataset:
Patent GB-1514897-A (GB)
Title: Device for monitoring physical activity of persons
IPC: G08B25/10
Filed: 1977-01-18
Abstract: 1514897 Automatic inactivity alarms SOC CHIMIQUE DES CHARBONNAGES 18 Jan 1977 [20 Jan 1976] 01951/77 Heading G4N The activity of a person is monitored by a device comprising a detector 2, e.g. an resistance accelerometer or light monitor, which supplies a continuously variable signal dependent on positional changes and a band pass filter 3 which allows only those signals from the detector corresponding to the person's "normal" movements to pass, an alarm being activated in the absence of signals from the output of the filter. A transmitter 9, e.g. radio, ultrasonic or light, is arranged to transmit as long as the filtered signals are present, an alarm device 8 warns the person that transmission is about to cease if the filtered signals are absent for a predetermined time, a receiver, Fig. 6, is tuned to the transmitter output, and means are provided in the receiver for providing an alarm shoud no signals be received for a predetermined time. As described, the transmitter sends out a coded radio signal and the receiver is adapted to discriminate between received signals from a plurality of transmitters. Circuitry details are described with reference to Figs. 3 and 7 (not shown).
Patent GB-721686-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P7/34
Filed: 1952-01-24
Abstract: 721,686. Automatic speed-control systems. IGRANIC ELECTRIC CO., Ltd. Jan. 24, 1952 [Feb. 23, 1951], No. 1988/52. Class 38 (4). A D.C. motor 5, Fig. 1, of a Ward-Leonard set is supplied from a D.C. generator 1 driven by a three-phase motor 9 supplied from an A.C. source L<SP>1</SP>, L<SP>2</SP>, L<SP>3</SP>. Generator voltage and hence motor speed is controlled by a main generator field winding 10 supplied with D.C. from the A.C. source through rectifiers 16-19 and windings 14, 15 of a saturable reactor 13. The excitation of generator field winding 10 is automatically controlled by applying to a control winding 20 of saturable reactor 13 a first voltage, between a point X and the slider of a potentiometer 25, in opposition to a second voltage, between point X and the slider of a rheostat 21. The first voltage, being the addition of that portion of the generator voltage selected by the appropriately set potentiometer 25 and a voltage dependent on motor current developed across a resistor 24, is representative of motor speed. The second voltage is a reference voltage selected from the output of a rectifier 22 by rheostat 21 which serves to set the speed which the system is to maintain. A second generator field winding 11, energized from rectifier 22, provides constant weak opposition to field winding 10 so that the total field may be reduced to a lower level and a greater speed range obtained by operation of rheostat 21. A further control winding 26 on saturable reactor 13 provides an anti-hunt feedback dependent on rate of change of excitation of field winding 10. Another control winding 27 is energized in dependence on the voltage across resistor 24 to provide further compensation for armature volt-drop. Obtaining the voltage representative of motor speed from a tachometer generator and automatic regulation of the excitation of motor field 31 in dependence on field circuit voltage or tachometer generator voltage by means involving a magnetic amplifier are referred to.
Patent GB-1398961-A (GB)
Title: Data transmission systems
IPC: H04J3/12
Filed: 1973-01-15
Abstract: 1398961 Radio signalling; repeaters SIEMENS AG 15 Jan 1973 [13 Jan 1972] 1998/73 Heading H4L Faulty monitoring signals are replaced by correct ones, and correct ones are merely retransmitted, at each repeater of a chain. Certain already-existing data signals such as frame synchronizing signals in a t.d.m. system may be selected to serve as these monitoring signals, and for fault indicating purposes. If they are received correctly at a repeater ZS1 from an end station ESt1 they are merely regenerated and retransmitted to the next repeater ZS2; if they are received incorrectly due to a line or repeater fault they are corrected before retransmission and a fault is signalled over a service line to remote analysis circuits AS1, AS2. Line sections or devices may in consequence be replaced automatically by AS1, AS2. In a t.d.m. signal (Fig. 2, not shown) having 15 frames (0-15) per superframe, 32 words per frame, and 8 bits per word, the first word of alternate frames constitutes the frame sync. word (RSW). The remaining first words contain channel data, and the sixteenth words in all frames contain superframe synchronizing and other information. The frame sync. word RSW is recognized at E1, Fig. 3, and if it is incorrect, a new sync word is produced by S1 to replace it while the fault signal is sent from E1 to AS1, AS2. In the event of failure producing either no, or a very faulty, input signal to ZS1, a pulse generator EG sends a train of pulses to the next repeater in place of the data being transmitted.
Patent GB-538484-A (GB)
Title: A flexible gas bag or container and crate or housing into which same is caused to collapse on deflation
IPC: B60K15/07
Filed: 1940-02-02
Abstract: 538,484. Gasholders. McKEE, J., Feb. 2, 1940, No. 2053. [Class 54] A flexible gas container such as is fitted to the roof of a motor vehicle is fitted internally with elastic tension straps or springs constraining the container to collapse as the gas pressure diminishes. The gas container may consist of a bag 4 secured in a shallow crate 5 by ropes 11, 16 passing through eyes 12 on the crate and tabs 13, 15 on the bag. The tension straps 8 are arranged in convenient planes and connect a central row of tabs 7 on the floor to tabs 9 on the top and sides of the bag. The end tabs 7 are similarly attached by tension straps to tabs on the upper parts of the bag ends. Each tab consists of a folded piece of strip material stitched to a rubber sheet 10 secured to the bag. The lower part of the bag may be provided with pockets fitting over hinged plates secured to a fixed platform. The Provisional Specification states that the upper part of the bag may be formed with a pocket or pockets to receive a wooden bar or weight to assist the bag to collapse.
Patent GB-674652-A (GB)
Title: Improvements in tube bundle assembly for heat exchangers
IPC: F28F21/02
Filed: 1950-01-26
Abstract: 674,652. Tubular heat-exchangers. HOWARD IRON WORKS, Inc. Jan. 26, 1950, No. 2086/50. Class 64(iii). A tubular heat-exchanger comprises a bundle of tubes 32 extending between tube plates 33, 34 which are supported by retaining rings 15, 16 respectively and each of which carries a header block 35 or 36, tie members (e.g. rods 21) extending between the retaining rings and being disposed in protective relation about the tube bundle and means being applied to the outer faces of the retaining rings for fastening the header blocks 35, 36 to the tube plates. In the form shown the header 33, 35 is fixed, the ring 15 being bolted to the end flange 11 of a casing 10 surrounding the tubes while the ring 16 is slidable in the casing, allowing the header 34, 36 to accommodate thermal expansion of the tubes 32. Baffles 28 provided with apertures 29 guide one fluid entering at 13 in a zig-zag path over the tubes to the outlet 14, the baffles being supported by the rods 21 and spaced thereon by sleeves 30. The other fluid enters through the nozzle 43 in the header block 35 and after passing through the tubes is discharged through the nozzle 44. The rods 21 are each fixed at one end to the ring 15, the other end being adjustable longitudinally and being freely mounted in a socket 24 in the ring 16. The tubes 32 and the tube plates 33, 34 may be made from a non-metallic material such as carbon.
Patent GB-636196-A (GB)
Title: Method of preparing methyl para-vinylbenzoate and para-vinylbenzoic acids
IPC: C07C51/09
Filed: 1947-01-23
Abstract: Methyl p-vinyl benzoate and p-vinyl benzoic acid are polymerized, e.g. by heating, to form clear polymers.  A voluminous gel is obtained upon continued treatment of poly-p-vinyl benzoic acid with aqueous alkali which may be shrunk to its original proportions by treatment with acid.  Aqueous suspensions in alkali may be used as thickening agents. Copolymers of high softening point suitable for the production of optical parts may be obtained by copolymerization with other vinyl compounds such as styrene, acrylic esters and vinyl chloride.ALSO:Methyl p-vinyl benzoate and p-vinyl benzoic acid are prepared by oxidizing methyl p-ethylbenzoate (obtained by reacting p-ethylbenzoic acid and methanol) with an oxygen containing gas, e.g. air, at an elevated temperature, in the liquid phase in the presence of chromium oxide and an inorganic acid acceptor such as calcium carbonate; reducing the resultant methyl p-acetylbenzoate with hydrogen, in the presence of a copper chromite catalyst at an elevated temperature, in the liquid phase, to give methyl p-(a -hydroxyethyl)-benzoate; dehydrating this by heating at an elevated temperature in the liquid phase with an inorganic acid salt such as potassium bisulphate to give methyl p-vinyl-benzoate and finally, if the free acid is desired, hydrolysing the methyl ester, e.g. with aqueous potassium hydroxide.  A small amount of hydroquinone is preferably added to the reaction mixture in the latter stages of the preparation, to inhibit polymerization.  An example is given.
Patent GB-483869-A (GB)
Title: Improvements in and relating to wireless receiving apparatus
IPC: H03F1/36
Filed: 1937-01-25
Abstract: 483,869. Wireless receiving-apparatus. PRIECHENFRIED, G. Jan. 25, 1937, No. 2143. [Class 40(v)] Negative feed - back is provided on the medium and long wavebands of a wireless receiver, but not on the short wavebands. The feed-back circuit comprises resistances R2 and R3 bridged across the secondary of the output transformer T1, the resistance R2 being shunted by a condenser C2 so that the circuit is less effective at high frequencies. The junction point of R2 and R3 is connected to a point on the bias supply potentiometer R4, the other end of R2 being connected to the cathode of triode V1 whilst the grid of V1 is connected to a point on R4. A switch S is connected in the feed-back circuit, the switch being gauged to the wave-change switch, which disconnects the negative feed-back in position 4, one of the short-wave positions, of the switch. The negative feed-back is retained in position 5, the gramophone position.
Patent GB-489180-A (GB)
Title: Improvements in bowls and dishes for holding fruit and other eatables
IPC: A47G19/06
Filed: 1937-01-26
Abstract: 489,180. Containers. OWEN, D. E. Jan. 26, 1937, No. 2315. [Class 18] [Also in Group XIV] A combined fruit bowl and container comprises a bowl member d adapted to seat removably on a lower member a which is provided with a false bottom having recesses e, f, g to receive articles of cutlery and a well h, extended laterally as at o, to allow access to plates stacked therein.
Patent GB-653321-A (GB)
Title: Improvements relating to flexible tubing and methods of making the same
IPC: B23K11/08
Filed: 1948-01-26
Abstract: 653,321. Making tubes. CHICAGO METAL HOSE CORPORATION. Jan. 26, 1948, Nos. 2330 and 2331. Convention dates, Nov. 21, 1946, and Nov. 17, 1947. [Classes 83 (ii) and 83 (iv)] Electric welding; welded joints ; uniting by fusion; corrugating.-Flexible tubing is made by wrapping a sheet in a plurality of superposed spiral laminations, securing the seam by welding the outer laminations whilst leaving the inner laminations free for relative sliding movement with the free laminations in substantially tubular form, and then corrugating the tube wall. A sheet 36 is wound once on a mandrel 10 and the seam is welded by a roller electrode 38. Winding is continued until the required number of laminations are applied and roller electrodes 44, 46 form a seam at each end of the tube. The corrugations, helical or annular, may be formed by rollers 56, 58, Fig. 5, to produce a corrugated multiply tube with internal longitudinal seam weld 40, and with circular seam welds at the ends of the tube passing through all laminations. The mandrel 10 comprises a roller in three sections guided by pins in end-plates 20 and varied in diameter by. conical bushes 32 screwed on a shaft 18 The outer longitudinal seam weld which leaves the laminations within the tube free for relative sliding movement is made with the free laminations in normal tubing form by an arc welding electrode, Fig. 7, not shown, by a shielded arc electrode, by a single roller electrode, Fig. 12, not shown, or by a double-roller electrode, Fig. 10, not shown. A layer of insulating material may be coated on or wound with the sheet to separate the laminations. A wire, Fig. 12, not shown, may be laid beneath the final lamination to localize the heating area. An electrode bar, Fig. 16, not shown, may be inserted between the outer laminations and the welding effected by single or double roller electrodes.
Patent GB-620643-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C7/08
Filed: 1947-01-25
Abstract: 620,643. Ladders. GRAVITY LADDERS, Ltd., and KING, J. LAWSON-. Jan. 25, 1947, No. 2382. [Class 20(ii)] [Also in Group XXII] The end 5 of the tubular rung of a ladder has a circumferential slot 6 for the reception of a tooth 10 projecting from the edge of an otherwise circular bearing hole 9 in the ladder side member 4, the part 7 between the extremity of the tube and the slot 6 being deformed inwardly to enable it to pass the projection 10 and permit the latter to be engaged in the slot, and after such engagement the part 7 is forced outwards so as to overlie the projection 10, so, preventing the withdrawal of the rung and completing the circular form of its projecting end, which projecting end is then spun or swaged outwards into an annular flange or bead. The rung may be made from a split tube, the slot 6 running into the split 3 and forming the part 7 as a circumferential tongue. If solid drawn tube is used, the end of the tube may be slit. Non-slip ridges 2, integral with the rung tube, are removed at the ends of the rung at such a distance therefrom as to form abutments for the inner sides of the members 4, and the ridges 2 are on the upper part only of the rung, which is prevented from turning by arranging the projections 10 in the opposite ladder side members 4 in opposite circumferential directions and slotting the tube ends accordingly. Instead of using the ends of the ridges, abutments for the inner sides of the members 4 may be afforded by shoulders on the tube or by upsetting the metal thereof. The invention is particularly suitable for ladders made in aluminium or other light metal or alloy.
Patent GB-926887-A (GB)
Title: Improvements in variable speed pulleys
Inventor: CROFT ARTHUR
IPC: F16H55/56
Filed: 1960-01-22
Abstract: 926,887. Expanding-wheel gear. CROFTS (ENGINEERS) Ltd. Jan. 2, 1961 [Jan. 22, 1960], No. 2399/60. Class 80 (2). The discs 2, 8 of an expanding pulley are mounted on a sleeve 4 keyed to the main driving shaft 6, the sleeve driving the pulley discs through a centrifugal clutch 23 which, as shown, is of the multi-disc type operated by tapered centrifugal masses 25 as described in Specification 886,255. The pulley discs are loaded by a spring 13 compressed by an adjustable collar 12 which forms the driven member of the clutch and is screwed on to the end of the sleeve 3 of pulley disc 2 and secured in position by a key 16. The collar is additionally secured by a transverse bolt or screw 18 extending across a slit 17.
Patent GB-725675-A (GB)
Title: The method of underground electrolinking and electro-carbonization of mineral fuels
IPC: E21B43/24
Filed: 1953-01-28
Abstract: 725,675. Distilling and gasifying unmined coal &c. SARAPUU, E. Jan. 28, 1953 [April 17, 1952], No. 2465/53. Class 55 (2). [Also in Group XXI] In a process for the distillation and gasification of unmined coal deposits, a number of boreholes such as 3 and 4 are sunk into the coal strata 1 and tubes 6 and 7 are lowered one into each hole. The tubes are insulated from the ground by plugs 9 and at the lower end each carry a perforated tubular electrode 8 of stainless steel or carbon. The upper ends of tubes 6 and 7 are connected to, but electrically insulated from, pipes 11 and 16, a branch 12 from pipe 11 leading to a water pump 13 whilst a branch 17 from pipe 16 leads to a heat-exchanger 18, an electrofilter 19, an exhauster 20 and a gasholder 21. Air, oxygen or steam for gasification is supplied by a compressor 24 to pipes 25 and 26 mounted axially in 'tubes 6 and 7 respectively and terminating inside the electrodes 8. In operation, the boreholes are first emptied of water by pump 13 and a switch 39 closed to cause a high voltage current to flow between the electrodes 8 thus heating the coal strata to distil off gas and volatile matter which is withdrawn by exhauster 20 and passed into the holder 21. When carbonization is complete the residual coke is gasified by pumping air, oxygen or steam through pipes 25 or 26 and withdrawing the generated gas through tubes 7 or 6. During carbonization air may be pumped through the fuel bed when a gas suitable for industrial or domestic use is generated.
Patent GB-776272-A (GB)
Title: Improvements in stop valves
Inventor: PETTINGER DONALD STANLEY
IPC: F16K1/14
Filed: 1954-01-27
Abstract: 776,272. Valves. HYMATIC ENGINEERING CO., Ltd. April 20, 1955 [Jan. 27, 1954], No. 2478/54. Class 135. A valve comprises a piston a carrying a ball c which is spring-pressed towards a seat e in the valve casing, the ball being housed in a bore which slopes inwardly at an angle of 40- 50 degrees and which, when the valve is moved towards the open position, is forced on to, and rides on, a fixed ramp k. In the open position of the valve, a passage-way g through the piston lines up with the inlet and outlet connections h, i. The passage-way is lined with a bushing m of the same outside diameter as the ball. The piston is moved backwards and forwards by means of a lever and link.
Patent GB-296256-A (GB)
Title: Improvements in smoking pipes
IPC: A24F1/08
Filed: 1928-01-26
Abstract: 296,256. LabrÞche, J. C. A., and Babineau, W. Jan. 26, 1928. Tobacco pipes.-The mouthpiece 3 carries a member 6 consisting of a flat part 7 and quadrantshaped projections 10 arranged to form upper and lower zigzag passages for the smoke.
Patent GB-1135924-A (GB)
Title: Apparatus for bonding a narrow ribbon onto a web of wrapping material
IPC: B29C65/00
Filed: 1966-01-19
Abstract: 1,135,924. Attaching tear strips to wrappers. " G.D. " SOCIETA IN ACCOMANDITA SEMPLICE DI ENZO SERAGNOLI E ARIOSTO SERAGNOLI. 19 Jan., 1966 [26 Jan., 1965], No. 2555/66. Heading B8C. Tear strips 1 are attached to a web 2 of wrapping material, e.g. " Cellophane " (Trade Mark), coated in the area to which the strips are to be applied with an adhesive 14 by means of a roller 10, the strips being supplied by conventional means to a support 3 from which they are drawn on to a bonding roller 5. The ends of the strips 1 overlap the end of the support 3 and are engaged by suction through holes (4), Fig. 2 (not shown), in a strip (18) of the roller 5, the suction being operative only over an arc between the points 20 and 21 in the rotation of the roller.
Patent GB-192277-A (GB)
Title: Improvements in or relating to valve apparatus for rock drills and like fluid pressure operated tools
IPC: B25D9/20
Filed: 1922-01-27
Abstract: 192,277. Rayner, G. H. T., and Rayner, P. Jan. 27, 1922. Fluid-actuated gears.-In drills &c. wherein the operating fluid is distributed by a cylindrical valve h rolled from one port j to the other k and back by compression, the valve-chest ends comprise plates m secured by a bolt n passing through the valve. Air is fed to the underside of the valve by ports p, q in the casing and plates.
Patent GB-839432-A (GB)
Title: Cutting machine
IPC: B23Q7/05
Filed: 1957-01-24
Abstract: 839,432. Cutting machines. DELCEL, P. P. Jan. 24, 1957, No. 2658/57. Class 31 (1). [Also in Group XXIII] A cutting machine comprising a rotary disc cutter A carried, together with itsdriving- motor, by a movable carriage V so. that it can traverse the material to be cut is provided with an. adjustable fence. C. which co-operates with graduated members. D, E for positioning an edge of'the material a predetermined distance from the cutter. The fence is adjustable by means of sprockets engaging, chains F, G embedded in grooves in the members D; E, the sprockets being respectively coaxial with sprockets I; J connected by a crossed' chain K, and" the sprocket I being actuated by a crank handle N. The carriage V has connected to the front and rear thereof a chain T passing round; sprockets O, P, R, S, the sprocket O being actuated by. a crank handle Q to .traverse the carriage along rails e, #.
Patent GB-942652-A (GB)
Title: Improvements in or relating to scaffold couplings
Inventor: COX THOMAS ERIC
IPC: E04G7/14
Filed: 1958-08-21
Abstract: 942,652. Clamps. BOULTON SCAFFOLDING Ltd. Nov. 23, 1959 [Aug. 21, 1958], No. 20866/58. Heading E2B. In a scaffold coupling comprising two tubereceiving faces at right angles to one another tongue-like hooked projections 2, 3, Fig. 1- carrying dependent lugs 12 the latter project from each face at opposite edges thereof. Each projection 2 pivotally mounts a tee bolt 4 for tube-clamping engagement with a cover 8 which is hingedly connected to the associated projection 3. The hinged connection is effected by forming an aperture 11, Fig. 2, in the base of the projection 3 and stamping out a substantially U-shaped slot 13 having arms 14 and a projecting ear 16 in the cover end 8a such that a tongue piece 15 having a recess 17 protrudes from the plane of the end. The distance between the base of the recess 17 and the tip of the ear 16 is less than the thickness of the projection 3 so that on assembly of the cover to the body 1 of the coupling and subsequent realignment of the tongue 15, Fig. 4, the ear 16 and the lugs 12 will be fixedly engaged within the aperture 11 and the slot arms 14, respectively. Specifications 804,038 and 804,039 are referred to.
Patent GB-415704-A (GB)
Title: Improvements relating to electric generator units for internal combustion engines
IPC: F02N11/04
Filed: 1933-01-28
Abstract: 415,704. Driving dynamos; yielding couplings. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Jan. 28, 1933, No. 2754. Convention date, Jan. 30, 1932. [Class 35.] An electric generator and an accessory, suoh as an ignition unit, are driven from an internalcombustion engine in such a manner that there is a positive driving connection between the accessory and the engine, the drive comprising a shaft rotatably mounted within the armature shaft of the electric generator, and a resilient connection between the accessory drive shaft and the generator shaft. The generator 10 has a hollow armature shaft 34, through which passes a shaft 32 enlarged and splined at one end 46 to receive a sleeve or socket on the engine shaft &c. and carrying at the other end an adjustable contact breaker cam 30 within a housing. The driving end of the generator casing is formed as a cylindrical member 36 having a mounting flange 44 and enclosing the resilient driving connection for the generator. The end 46 of the shaft 32 receives a correspondingly splined sleeve 50 secured by a screw 51. A second sleeve 48 splined on the armature shaft 34 is held by a nut 49. The sleeve 48 has projecting arms 52 enlarged and threaded at the ends 54 to receive adjustable spring-holding cups 55. The free ends of the springs 56 bear against arms 60 formed on the first sleeve 50.