baber/WOPTO huggingface dataset:
Patent GB-516136-A (GB)
Title: Improvements in or relating to electrical communication transmission systems
IPC: H04M3/40
Filed: 1938-06-21
Abstract: 516,136. Repeating systems. STANDARD TELEPHONES & CABLES, Ltd., and HODGSON, K. G. June 21, 1938, No. 18422. [Class 40 (iv)] In an electrical communication system including two terminal stations and a plurality of intermediate unattended stations, one of the terminal stations is a control station, each station is associated with a signal current of a particular -frequency, and, in addition, one or - more signal currents of frequencies differing from the first-mentioned frequencies are associated with two or more unattended stations. Means are provided at each unattended station for varying the strength of the signal currents associated with it when a fault occurs. With such arrangement, both the station and the part of the apparatus at fault can be ascertained at the control station. At an unattended station, the supervisory lines 1, 1<SP>1</SP>, 2, 21, Fig. 2, are shunted through relay contacts by series resonance circuits L1, C1, L2, C2, and L3, C3 tuned to three frequencies associated with the station. Relay J is operated when the main amplifier is in operation. Relay S is operated when a spare amplifier is in operating condition and relay H is normally unoperated but operates when the spare amplifier is switched into service. Relay FS, however, is normally operated and releases when the spare amplifier fails. Relay MF is normally operated and releases when the power supply fails. Failure of the main amplifier releases relay J, connects L1, C1 across the lines and blocks the corresponding frequency which is peculiar to the station. Failure of the spare amplifier connects L2, C2 across the lines, and failure of the power supply connects L3, C3 across the lines. At the control station each signal is filtered out, amplified and made to operate a relay. Absence of any signal frequency causes the corresponding relay to release and complete an alarm circuit. Time delay devices may be included in the circuit at an unattended station so that when a fault occurs the corresponding frequency is only interrupted for a predetermined time. In this case the corresponding relay 24, Fig. 6, at the control station releases and closes contacts 25 for a predetermined time when the fault occurs. Relay 28 then operates to light a lamp 26 to operate an audible alarm 27 and to lock itself in operated condition. The alarm is reset by separating the contacts 32 by means of a push button: A suitable circuit for the operation of the relays in Fig. 2 is described in Specification 513,162. Specifications 446,225 and 477,875, [Group XXXV], also are referred to.
Patent GB-279174-A (GB)
Title: Improvements in and relating to the regulation of electric distribution systems
IPC: H02J1/12
Filed: 1926-07-23
Abstract: 279,174. British Thomson-Houston Co., Ltd., and Knight, H. de B. July 23, 1926. Regulation, automatic.-A vapour rectifier 3 running in parallel with a motor-generator set 35 between an AC supply circuit 7 and a DC load circuit 2, has its grids 11 supplied through a transformer 14 from a line 17 connected to the circuit 7 through a phase shifting device. Load variations on the set 35 are imposed by a current transformer 25 upon a resistor 31 so as to vary the phase of the grid potential and thereby cause the rectifier to take the variations in the load. The current transformer 25 may be included in the circuit 7. Also the variations from this transformer may be imposed upon a grid bias resistor 19 instead of upon the resistor 31. Specification 274,192 is referred to.
Patent GB-353186-A (GB)
Title: Process for the manufacture of artificial wood
IPC: B27D1/04
Filed: 1930-06-16
Abstract: An artificial wood is made by compressing, with binding agents capable of hardening under heat, bundles of vegetable fibres which all lie in the same direction and in which the natural binding between the fibres remains undestroyed.  Examples of binding agents are natural or artificial resins, caoutchouc, caseine, or albumen. Examples of vegetable fibres are divided or whole stalks of papyrus, bamboo, straw or reeds, cane trash, or wood sliced into small boards or ribbons.  Before mixing with the binder a fungicide may be added to the vegetable matter to prevent decay. The products may be compressed in moulds, pieces being obtained which may be directly used as planks, boards, &c.  The outer layers may be more heavily impregnated than the inner.
Patent GB-418843-A (GB)
Title: Improvements in or relating to adjustable windows
IPC: E05F11/00
Filed: 1933-06-28
Abstract: 418,843. Window holders. DUTFIELD, A. E., The Cottage, Fayland Avenue, Streatham Park, London. June 28, 1933, No. 18442. [Class 44.] A sliding window is held in adjusted position by a pawl 1 carried by the window 3 and engaging a rack 5 in the guide channel 6, and is held against rattling by a spring-plunger 9 working in an angularly disposed socket 10 carried by the window and provided with a triangular head 8 bearing against the channel wall. Pivoted to pawl 1 is a depending rod 12 guided in a lug 15. When pawl 1 is rocked out of engagement with the rack rod 12 is depressed and its lower end engages and depresses head 8 of the plunger to release it. The pawl 1 is urged into engagement with the rack by a compression spring 17 between the guide 15 and a lug 20 on rod 12. Spring 17, and spring 11 of plunger 9, are housed in telescopic tubular members. Two of the above arrangements are provided, one at each side of the window, and the pawls are mounted on a transverse shaft 2 disposed across the top edge of the window in a casing 4, and operated by a centrally disposed thumb-piece, not shown.
Patent GB-1065234-A (GB)
Title: Improvements in or relating to slush pumps and pistons thereof
Inventor: GHLIN RUSSELL ALOYSIUS MCLAU
IPC: F16J15/16
Filed: 1964-05-04
Abstract: 1,065,234. Pistons. MISSION MANUFACTURING CO. May 4, 1964, No. 18469/64. Heading F2T. In a pump piston 8 comprising annular seals 20 of elastomeric material abutting each side of a central radial flange 18 on the piston and anti - extrusion nylon rings 30 in recesses in the seals adjacent the flange, in order to prevent extrusion of the seal material over the rings 30 at least a portion of the interface 28 between each ring 30 and seal 20 is tapered outwardly to the piston axis in a direction away from the flange and the angle of such taper and the radial thickness of the ring 30 adjacent its end remote from the flange are such that when the seal is under pressure the rate of expansion of the ring in the vicinity of the outer circumferential interface is at least equal to and preferably greater than that of the seal. An analysis for determining the required taper angle and radial thickness is given in the Specification. The seals are retained by plates 22 located by splitrings 24. In the modification shown in Fig. 6 the interface between the nylon ring 46 and the seal 20 has a tapered portion 48 and the seal is reinforced by embedded fibres in the area 58.
Patent GB-1123854-A (GB)
Title: Reader for a perforated record medium
Filed: 1967-04-21
Abstract: 1,123,854. Sensing perforated records. INTERNATIONAL STANDARD ELECTRIC CORP. 21 April, 1967 [28 April, 1966], No. 18476/67. Heading G4M. Each track of a punched tape 3 is sensed by a pair of adjacent members 4a each mounted on individual wire springs 4 and carrying a precious metal bracket 4b, the latter co-operating with precious metal contacts 5a on a common fixed spring 5. Sprocket wheel 9 has a limited amount of freedom in the axial direction to allow greater tolerance in the position of the feed holes in tape 3.
Patent GB-335175-A (GB)
Title: Improvements in the manufacture and production of fertiliser salts which are capable of being stored
IPC: B01J2/30
Filed: 1929-06-15
Abstract: 335,175. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 15, 1929. Manures.-The caking of granular fertilizers that are not hygroscopic is prevented by giving to the granules a coating of mineral or other oil which is insoluble in water and not volatile or only slightly volatile. The oil may contain in solution a water-repellant material such as wax, paraffin, or fat. The oil may be sprayed over the granular material in a mixing drum. Urea, potassium chloride-ammonium nitrate or mixtures thereof with ammonium phosphate, ammonium sulphate nitrate, mixtures of ammonium nitrate with calcium carbonate, and other mixed fertilizers containing ammonium, potassium, or sodium nitrate may be treated in this way. Specifications 1868/85, [Class 1, Acids, alkalies &c.] ; 9687/99; 168,070; 313,652, [Class 1 (iii), Oxides &c., Metallic] ; and 314,639 (as open to inspection under Sect. 91 of the Acts), are referred to.
Patent GB-274158-A (GB)
Title: Improvements in electrically operated signals for vehicles
IPC: H01G4/28
Filed: 1926-04-20
Abstract: 274,158. Rolph, W. M. April 20, 1926, Indicators or annunciators.-The movement of a semaphore arm 1 is controlled by an electromagnet 4 so that the arm oscillates when raised. The arm may be connected to the magnet through a spring but in the form shown in the Figures a roller 11 on the arm rests on the top of a link 6 connected to a solenoid bv a lever 7 so that as the link is lowered the arm moves about its centre of support 2 under the action of a counter-weight 12 and oscillates before coming to rest. A stop 13 may be provided to limit the movement of the arm. Red and green lamps may be illuminated when the arm is in the raised and lowered positions.
Patent GB-743360-A (GB)
Title: Improvements in or relating to parachute equipment
Inventor: BROWN WILLIAM DONALD
IPC: B64D17/52
Filed: 1953-07-03
Abstract: 743,360. Parachutes. IRVING AIR CHUTE OF GREAT BRITAIN, Ltd. June 1, 1954 [July 3, 1953], No. 18523/53. Class 4. In order to ensure that a pilot parachute, when launched, is not pressed against or blanketed by the main pack and thereby prevented from opening, the parachute is mounted in a small pack 13, preferably weighted with lead shot, which is slidably mounted by a loop (not shown) on one arm 12 of a spring of hairpin form, the other arm 10 being secured to the main pack by clips 11. The spring is held in its stressed condition by a catch plate 18 released manually or automatically and the parachute is connected to the main pack by a static line 17. Upon release the pack 13 is projected clear of the main pack and when the line 17 becomes taut the pack 13, by reason of its relatively large mass, continues its flight and permits the pilot parachute to be withdrawn for safe deployment and withdrawal of the main parachute. In a further embodiment (not shown) the pilot parachute is mounted in a tubular telescopic container and ejected by a coiled compression spring. Other ejecting means referred to are compressed gas, explosive charge or rubber bands.
Patent GB-1274130-A (GB)
Title: Improvements in or relating to taps
IPC: F16K31/524
Filed: 1970-04-17
Abstract: 1,274,130. Valves. RESSORTS DU NORD S.A. 17 April, 1970 [21 April, 1969], No. 18548/70. Heading F2V. A tap comprises a cylindrical and tubular rotatable valve actuating means 16 having a lower end which constitutes a helical ramp, the ramp co-operating with a complementary helical ramp 14 formed on a closure member 10 of the tap, wherein the closure member 10 comprises a cylindrical stem 13 extending inside the tubular actuating means 16, the complementary helical ramp 14 surrounding at least part of the cylindrical stem 13. Fluid pressure lifts the closure member off its seat when the handle 3 is rotated to open the valve. A ring 15 laterally supports the closure member 10 in the valve body.
Patent GB-726281-A (GB)
Title: Improvements in or relating to balanced modulator circuit arrangements
IPC: H03C1/54
Filed: 1953-07-03
Abstract: 726,281. Modulating systems. SOC. FRANCAISE RADIO-ELECTRIQUE. July 3, 1953 [July 29, 1952], No. 18585/53. Class 40 (5). A balanced modulator circuit comprises two similar multi-grid tubes so connected that the bias of one of the control grids of each tube is dependent on the output current of the other tube with the result that a change in the output of either tube is automatically accompanied by a corresponding change in the output of the other. As shown, the tubes T1, T2 are of the heptode type with the carrier source P connected to the first grids in parallel, and with a modulating source (shown as separate sources M1, M2) connected in push-pull to the third grids. Side-band output without carrier is taken at T in push-pull from the tube anodes. Each cathode circuit to earth comprises resistors R1, R2 in series with a portion of the tapped resistor P2, the junctions A, B of resistors R1, R2 in each cathode circuit being connected through resistors R3 to the third grid of the other tube. If the cathode current of either tube varies, a corresponding variation in the third grid bias of the other tube restores the balance of the anode output. In another embodiment (Fig. 2, not shown) both the carrier and the modulation are applied in push-pull to the respective control grids, and side-band output is taken in parallel from the anodes. Decoupling condensers C2 may be provided, but are not essential.
Patent GB-903377-A (GB)
Title: Improvements in or relating to textile folding machines
Inventor: SCHUMANN KURT
IPC: B65H45/101
Filed: 1961-05-23
Abstract: 903,377. Folding fabrics. TEXTILMASCHINENBAU GERA VEB. May 23, 1961, No. 18639/61. Class 42 (2). A machine for laying a web of fabric in folds comprises a weight 9 adapted to be laid on the top layer of the stack 4 of fabric to hold fast said layer in the wake of the cloth-laying member 2 as it approaches its reversal point when the gripper 5 to hold the folds in position is in its inoperative position, the weight 9 being intermittently engaged by a holder 8 connected to the member 2 to lift the weight off the top layer when the gripper 5 is in the operative position and lowered thereon before the gripper 5 is made inoperative so that the top fabric layer is always held fast during the laying thereof. When the member 2 approaches the gripper 5 an electromagnet 10 is de-energized so that the holder 8 is lowered to put the weight 9 on to the stack 4. As the holder 8 continues to move towards the gripper 5 the weight 9 is released therefrom, the gripper 5 is raised and the weight 9 holds the fabric fast. As the member 2 returns, the gripper 5 is lowered, the holder 8 engages the weight 9 and the electromagnet 10 is then energized to lift the weight. A similar member 2 having a weight 9 and a holder 8 associated therewith may be provided on the left-hand side of the carrier 3.
Patent GB-767983-A (GB)
Title: Improvements in and relating to motor scooters
IPC: B62J7/00
Filed: 1954-06-25
Abstract: 767,983. Motor cycles. N.S.U. WERKE AKT.-GES. June 25, 1954 [July 1, 1953], No. 18719/54. Classes 79(3) and 136(1). The shield 1 of a motor scooter projects forwardly of the scooter and has a curved portion with rearwardly extending upper and lower portions and has a mounting carrying a battery or batteries 10 immediately behind the curved portion. In the embodiment the mounting comprises dishes 6 carried on shelves 5 which are supported on brackets 4. Hooks 13 fixed to the dishes 6 are engaged by resilient straps 12 to retain the batteries 10 which are enclosed in a housing 2 mounted on the shield 1. The housing 2 extends upwardly on each side of a casing 11 comprising a dashboard and storage compartment. An opening 7, closed by a cover 8, and a vent 9 are provided in the housing 2. The vent may be provided in the shield 1.
Patent GB-147239-A (GB)
Title: Improvements in or relating to the manufacture of bricks, tiles, clinker and the like
IPC: F27B9/36
Filed: 1918-11-16
Abstract: 147,239. Atkins, H., and Colquhoun, J. A. Nov. 16, 1918. Tunnel kilns.-A plant for the manufacture of bricks, tiles, clinker &c. comprises a moulding or loading house M, a drying-kiln DK, and a firing- kiln FK arranged end to end with a line of rails therethrough, the firing-kiln being heated by burners, for example crude-oil burners as described in Specification 147,240, [Class 75 (i), Burners &c.], and the drying-kiln by the waste heat from the firing-kiln- The burner supply arrangements comprise a ground-level oilstorage-tank GOT, an overhead supply tank OOT, and high and low pressure air plants HP and LP. The burners deliver through the side walls of the firing-kiln, and the products of combustion are exhausted through an overhead flue D and delivered to the drying-kiln through a side flue HAF. Preferably, two sets of plant are arranged side by side with a common return line of rails RT between. Hand or power tackle H for hauling the trucks is provided at suitable points, and turntables U, U<1>, U<2> are fitted at the moulding- end of the rail tracks.
Patent GB-1346136-A (GB)
Title: Rollway with a plurality of treatment or processing stations
IPC: B21B39/12
Filed: 1972-04-24
Abstract: 1346136 Roller conveyers MOELLER & NEUMANN GmbH 22 April 1971 [22 April 1971] 18893/72 Heading B8A A rollerway system for feeding billets through a descaling station 2 and an ultrasonic test station 3 comprises groups of rollers 6, 13, respectively driven by pairs of motors 7, 8; 14, 15; and groups 9, 11, respectively driven by single motors 10, 12. All the motors are of the frequency controlled three-phase type and are speed controlled in unison by common means 16, 17, 18. To ensure that billets supplied from a station 1 are end-to-end by the time they pass through the station 2, the billets in a portion 8m of the roller group 6 are decelerated by providing rollers of smaller diameter than the rollers in the preceding portion 16m. The necessary spacing between the billets before they arrive at the station 3 is ensured by the motor 12, which drives the roller group 11 faster than motor 10 drives the group 9. Separation of the billets is further aided by driving the group 13 faster than the rollers of group 11. A cross-conveyer 4 transfers the billets to a rollerway 5 for delivery to a magnetic crack testing station or other station.
Patent GB-1311206-A (GB)
Title: Hydraulic cylinder with pressure control
IPC: F15B13/01
Filed: 1970-04-21
Abstract: 1311206 Hydraulic pressure actuators CESSNA AIRCRAFT CO 21 April 1970 [28 April 1969] 18927/70 Heading F1D The speed of a hydraulic operated single-stroke double-acting piston 12, Fig. 1 is controlled by varying an orifice 30 in a flow discharge duct 27, 28, 39 by means of a restrictor spool valve 42 subjected at one end by discharge pressure in the contracting end 15 of the cylinder 11 and transmitted through a duct 34 and subjected at the other end to a biassing spring 48 and supply pressure acting on a spool 46 which by means of a pin 43 holds restrictor valve spool 42 fully open until at a predetermined decrease in inlet pressure at 33, spring 48 is over-ridden and valve 42 restricts the exhaust flow. Such inlet pressure decrease at 33 may occur due to a sudden increase of an external load-assisting retraction of the piston resulting in increase in velocity thereof and cavitation in the expanding end of the cylinder accompanied by a pressure increase on the contracting side. Cushioning at the end of the stroke is effected by entry of a piston projection 38 into discharge duct 27 which thus increases pressure in duct 34 and results in partial closing of restrictor valve 42. The upward return stroke is initiated by switching a distributing valve 19 to apply inlet pressure to duct 29 and past a check valve 36 to a by-pass 35 and duct 34. A similar valve construction may be provided at the other end of the cylinder. In a modification cushioning near the end of the stroke is effected when a spring-biassed hollow plunger 85, Fig. 4 carried by the piston 95 seats at 91 against the exhaust duct 28 whereon fluid at the head end of the actuator cylinder passes along a tapered notch 99, through apertures 88 into the interior of plunger 85 and thence through an orifice 92 into exhaust duct 28 and through the throttle valve (not shown) as described with reference to Fig. 1. In this embodiment the bypass 35 and check valve 36 and dispensed with. In a further modification two double acting piston and cylinder actuators are arranged in tandem.
Patent GB-613666-A (GB)
Title: Improvements in or relating to means for protecting the tyres of motor vehicles and other wheeled vehicles
IPC: B60S1/68
Filed: 1946-06-25
Abstract: 613,666. Wheel scrapers. CARLTON, W. C. June 25, 1946, No. 18963. [Class 108 (ii)] The rigid or semi-rigid extractor 1 of a tyre scraper, or its supporting arm 4, is mounted upon a body or bodies 9 of rubber or like resilient material which yieldingly maintain the extractor in normal operative relation to the tyre surface, while permitting the displacement of the device relative to the tyre surface by the forces applied thereto as the tyre rotates. The blade 1 has a curved, serrated edge 3 and may be secured to, or formed integral with, a flange 2 by which it is attached to one end of an arm 4 whose other end is mounted in a rubber ball 9. This ball is held by a screwed cap 11 in a hemispherical depression in a bracket 10 secured by pinch bolts 14 to a vehicle frame member 13. The carrier arm may be in two parts of which one 8 slides in a bore in the enlarged end 7 of the other and is held in any desired position by a set screw 16. The deflector blade or flange or both may be made of brittle material, i.e. one having an elongation under tensile test of less than 20 per cent. The blade 3 may be made in several sections. The rubber block may be pyramidal, conical, rectangular or polygonal in shape.
Patent GB-1134948-A (GB)
Title: Copolymers of alpha-olefins and alkenyl amines
IPC: C08F4/60
Filed: 1966-04-29
Abstract: 1,134,948. Alpha monoolefin - alkenylamine copolymers. ESSO RESEARCH & ENG. CO. 29 April, 1966 [25 June, 1965], No. 19006/66. Heading C3P. A copolymer comprises at least one alpha monoolefin having 2 to 10 carbon atoms per molecule and a secondary or tertiary alkenyl amine of the formula where R 1  is an alkenyl radical containing 4 to 12 carbon atoms, R 2  and R 3  are hydrogen, or C 1-8  alkyl with the sum of the carbon atoms of R 1  and R 2  being less than 13, R 4  is a C 1-4  alkyl group, R 5  is hydrogen or a C 1-4  alkyl group, and R 6  is an alkenyl radical of 2 to 12 carbon atoms; provided that at least two of the groups R 1 , R 2  and R 3  have a carbon branch at the alpha and/or beta positions from the nitrogen atom, and that the group R 5  may be hydrogen only if the group R 1  has a branch at the alpha or beta position from the nitrogen atom. The amine is suitably present in amounts up to 10% by weight. The polymers are prepared using conventional Ziegler catalysts, particularly TiCl 3 .<SP>1</SP>/ 3  AlCl 3 +Al(C 2 H 5 ) 3 , optionally with a third component such as hexamethylphosphoramide or tetrabutylammonium chloride. In the examples, the copolymerization of propylene with N,N-diisopropyl-7- oetenylamine, N,N - diethyl - 4 - pentenylamine (comparative), N,N - diisopropyl - 3 - butenylamine, N,N - diisopropyl - 4 - pentenylamine, N,N - diisopropyl - 5 - hexenylamine, and of butene-1 with N,N-diisopropyl-7-octenylamine are described. Other amines mentioned include N - Œ - butyl - 1 - methyl - 6 - heptenylamine, 2,6 - di - t - butyl - 4 - vinyl piperidine, N - (5 - hexenyl) - 2,5 - dimethyl pyrrolidine, and 2,6 - diisopropyl - 4 - vinyl pyridine as representative examples.