baber/WOPTO huggingface dataset:
Patent GB-143908-A (GB)
Title: Telephone exchange system
IPC: H04Q3/42
Filed: 1919-07-22
Abstract: 143,908. Western Electric Co., (Assignees of Lundell, A. E., and Stearn, F. A.). July 22, 1918, [Convention date]. Drawings to Specification. Automatic and semi-automatic exchange systems.-A semi-automatic system is described identical with that described in Specification 130,329. The claims in the present case relate to the following feature. The number of the wanted line, or a non-decimal translation of that number, is recorded on registers, which, in the system described, form part of an operator's sending-equipment, and these registers either co-operate successively with a chain of counting-relays to control the setting of automatic selectors which build up the desired connexion, or else, independently of the counting-relays, they control the transmission of currents to operate a number-indicator. The latter mode of action is automatically brought into play when a connexion has been extended to a manual exchange, the circuits of the operator's sending-equipment being transformed for this purpose by a switch called a " class register. " This switch is set, under control of the exchange keys depressed by the operator, to different positions according to the class of the call, i.e. according to the kind of exchange to which the wanted subscriber belongs. If he belongs to a manual exchange, the class register has the following effect : As soon as the automatic connexion has been extended to the manual exchange, a sequence switch, which normally moves step by step from one position to another to associate the relay counting-chain, successively with the different registers, is first restored to normal and then run continuously through a complete cycle. in the course of this operation, each register sends a current over one or other or both sides of the inter-exchange trunk; if currents are sent over both sides of the trunk, the current in one line commences or terminates before that in the other, so as to increase the choice of effects. These currents are transmitted through contacts of the sequence switch selected by the registers, each register being brought into action in turn by other contacts of the same sequence switch. At the manual exchange, the line currents control groups of relays similar to the groups which constitute the registers, the relays of each group being energized in the same combination as in the corresponding register, and the energized relays co-operate to select lamps which light up the number of the wanted subscriber.
Patent GB-1102495-A (GB)
Title: Improvements in or relating to insecticidal compositions
IPC: A01N25/00
Filed: 1965-04-06
Abstract: Insecticidal and insect sterilant compositions comprise as the active ingredient the antibiotic porfiromycin and a solid or liquid carrier. The carrier may comprise an insect nutriment or food, e.g. granulated corn meal, bran, pomace, granulated sugar, corn syrup, honey or molasses; carbohydrates, e.g. sugars (such as lactose, sucrose, fructose or glucose), starches, dextrins or pectins; proteins or degradation products thereof such as egg albumen, meats, soybean oil meal, cottage cheese, proteoses, peptones, peptides or powdered milk or egg; and an insect attractant, e.g. sec-butyl-6-methyl-3-cyclohexene-1-carboxylate, sec-butyl-4- (or 5)-chloro - 6 - methyl - cyclohexanecarboxylate, methyleugenol, 4-(p-acetoxyphenyl)-2-butanone and anisylacetone, may also be present.  The compositions may be in the form of aqueous or organic solutions, e.g. in methanol, ethanol, acetone or ethylene dichloride; dusts also containing a dusting powder; aqueous spray formulation comprising a wetting agent and/or spreading agent, dispersing agent, sticker or adhesive; wettable powder suitable for dispersing in an aqueous vehicle containing a surfactant and dusting powder; concentrated organic solutions in acetone, ethylacetate, dimethylformamide, dimethylacetamide, dimethyl sulphoxide, acetonitrile or cyclohexanone, and emulsifiable concentrates also containing surfactants.  Harmful insect pests are combatted by bringing porfiromycin or a composition thereof into contact with said insects or their environment.
Patent GB-528880-A (GB)
Title: Improvements in and relating to electric choke coils
IPC: H01F29/14
Filed: 1939-05-16
Abstract: 528,880. Inductances. BRITISH THOMSONHOUSTON CO., Ltd. May 16, 1939, No. 14613. Convention date, May 17, 1938. [Class 38 (ii)] In order to avoid inductive coupling between the A.C. windings of a polyphase regulating choke and D.C. saturating windings associated therewith, the core is divided into two parts each comprising four limbs, and the D.C. windings which are connected in series are arranged on three limbs in such manner that the fluxes produced thereby are in opposite directions in adjacent limbs. Specification 525,384 is referred to.
Patent GB-110386-A (GB)
Title: An Improved Dividing-head.
Inventor: TAYLOR WILLIAM
IPC: B23Q1/28
Filed: 1916-10-14
Abstract: 110,386. Taylor, W. Oct. 14, 1916. Dividing-engines.-A dividing head for use in engraving, graduating and machining comprises a rotatable work-holder, Figs. 1 and 2, which may take various forms, mounted in a support B, angularly adjustable in a base F having two machined faces at right angles to one another. The support B is slotted at S, Fig. 6, to provide for clamping the journal A<1> of the work-holder, and is cut away at 2 to give a three-point clamping effect by means of a screw B'. The support is provided with a part-cylindrical surface to engage a corresponding surface F<5> on the base and has a T-groove receiving a tongue F<6>. Clamping .is effected by a bolt. Adjustable eccentric stops spanning the groove limit the angular adjustment of the support. In addition to graduations A<16>, B<20>, interchangeable notched disks C', Fig. 4, are provided secured to the journal A' by a split clamp-washer E carrying conical pins C<2> engaging holes in the disks. The pins are so arranged that they both engage the holes on the same side giving, together with the opposite side of the journal a three-point bearing effect. The disks may be placed on the journal with either side at the front according to the position of a reversible pawl D maintained in position by a spring engaging one of two flats formed at the bottom of notches in the pivot secured in the support B. The spring is on the opposite side of the pivot to the pawl thus eliminating back lash. The pawl may be turned. to an inoperative position in which the spring bears on a cylindrical part of the pivot.
Patent GB-1282652-A (GB)
Title: Improvements in or relating to vacuum diffusion pump fluids
Inventor: WADDINGTON FRED BERRY
Filed: 1970-03-26
Abstract: 1282652 Diffusion pump fluids ASSOCIATED ELECTRICAL INDUSTRIES Ltd 19 April 1971 [26 March 1970] 14855/70 Heading C5F Vacuum diffusion pump fluids consist of a petroleum distillation fraction having a vapour pressure not greater than 10<SP>-5</SP> Torr at 20‹ C. and 0À2-2.0 wt. per cent of trinonyl phenyl phosphite or a phenol which has a vapour pressure of the same order of magnitude as the oil. Preferred phenols have the formula where each R is a hydrocarbon group.
Patent GB-128082-A (GB)
Title: Improvements in and relating to Electric Motor Control Systems.
IPC: H02P1/20
Filed: 1918-09-12
Abstract: 128,082. British Thomson - Houston Co., (General Electric Co.). Sept. 12, 1918. Systems for continuous-current motors only.- In a motor-control system with electro-magnetic contactors held open by the motor current when it is above a predetermined value, means independent of the windings are employed to give the contactors a closing tendency which will overcome the holding-out force when the current drops to the predetermined value. In the arrangement shown, the circuit of the motor A<1> is controlled by a main switch A and resistance con. tactors B, C. The contactors B, C have current coils 13 and are held open by the force between the arms 14 and the pole-pieces 20. When the switch 12 is closed, the switch 11 is operated to close the motor circuit through the resistances R, R<1>. As the spring-pressed contact 24 on the arm 11 wipes its fixed contact the spring 21 is stretched and tends to close the contactor B. When the current drops to the proper value, the spring overcomes the holding-out force and closes the contactor to short-circuit the resistance R. The contactor is held closed by the force between the arm 14 and pole-piece 19. During the closing of the contactor B, the spring 25 is stretched and the contactor C closes when the current drops. Specifications 11350/11 and 23544/14, [Class 38 (v), Electric switches &c.], are referred to.
Patent GB-1533782-A (GB)
Title: Use of n-acyl-1-aminoalkane-1,1-diphosphonic acids as complexing agents
IPC: C07F9/38
Filed: 1976-04-12
Abstract: 1533782 Inhibiting scaling and corrosion JOH A BENCKISER GmbH 12 April 1976 [30 April 1975 5 July 1975] 14870/76 Heading C1C [Also in Divisions C2 and C5] N-acylaminoalkane diphosphonic acids and salts thereof (I) having the general formula: wherein R, R" and R" are H or C 1 -C 5  alkyl and R' to R<SP>4</SP> are H or an alkali metal cation (e.g. Na) are used to prevent scale deposits and to inhibit corrosion in water systems. The products (I) form complexes with divalent and polyvalent metal ions, e.g. Ca, Mg, Fe, Cr and Mn, and may be incorporated in solid or liquid products, prior to adding to the aqueous media.
Patent GB-630589-A (GB)
Title: Improvements in resilient door mounting
IPC: E05D3/02
Filed: 1947-06-05
Abstract: 630,589. Hinges. AKTIEBOLAGET ARBOGAMASKINER. June 5, 1947, No. 14907. Convention date, June 28, 1946. [Class 65 (ii)] A door 1 is mounted on its hinge pin 3 by means of helical springs 9 which grip the hinge pin towards their centres while widening towards their ends, the springs being contained in housings 2 formed integrally with the door, and the arrangement being such that the springs tend to maintain the hinge pin concentric with the housings. The hinge pin engages in bores formed in ears 5 on the frame 6. The distance a between the axis of the housing and the face of the door is made greater than the distance b between the axis of the bores and the face of the frame, so that displacement of the hinge pin from its concentric position is necessary to engage it with the bores.
Patent GB-936756-A (GB)
Title: Improvements in or relating to loudspeaking telephone systems
IPC: H03F3/345
Filed: 1961-04-25
Abstract: 936,756. Intercommunication systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 25, 1961 [April 28, 1960], No. 14915/61. Class 40 (4). A secrecy switch SK at a sub-station BP of a loud-speaking telephone system is operable to produce saturation of a transistor amplifier stage at the main station HP, thereby preventing conversation at the sub-station BP being overheard at the main station HP. A speak/ listen switch SL at the main station HP when in the position shown connects transducer LS.1 at the sub-station to the input of amplifier V and connects transducer LS.2 at the main station to the output of amplifier V, transducer LS.1 functioning as a microphone while transducer LS.2 functions as a loud-speaker. With switch SK open, battery B feeds saturation current to transistors T 1 , T 2 , thereby preventing conversation at sub-station BP being heard at main station HP. On closing switch SK a biasing potential from battery B is applied by voltage divider R 1 , R 2  to the base of transistor T 1  through a direct current path including line loop L 1 , L 2  and switch SK. A similar biasing potential, via resistors R 3 , R 5 , is applied to the base of transistor T 2 . Transistors T 1 , T 2  then function as amplifiers of microphone signals from transducer LS.1. Capacitor C 5  and resistor R 5  form a low pass filter for avoiding undesirable feedback effects. In the other position of switch SL, transducer LS.2 is connected to the input of amplifier V and functions as a microphone while transducer LS.1 is connected to the amplifier output and functions as a loudspeaker. Switch SK does not then affect the operation of amplifier V. The amplifier may have more than two stages. Only one stage may be put into a saturated state. More than two substations may be connected to the main station.
Patent GB-612193-A (GB)
Title: Improvements in or relating to sailing craft
IPC: B63H9/10
Filed: 1946-05-17
Abstract: 612,193. Sails. COATES, W. W. WELLS-. May 17, 1946, Nos. 14984 and 25532. [Class 115] A sail rig comprises a revolvable mast 20 of aerofoil cross section as seen in Fig. 5 and a mainsail composed of a number of separate sail cloths 29 joined at their adjacent edges by battens 30. Numerous methods are described for attaching the sail cloths to the battens. A rope 36 is provided for adjusting the flexure of the battens as required. At their forward ends the battens diverge into arms 40, each carrying rollers 42 which cooperate with tracks 44 and 45 in the mast. Resilient plates 26 are provided as shown to close the gap between the mast and the luff of the sail, and flaps 66 to close the gap between the sail and the deck. Fig. 10 shows one of many methods described for stowing the sail, 63 being the inner member of the telescopic boom 60. The rig also comprises a foresail 80 as shown in Fig. 1, and a sliding gunter may be provided, together with the usual halyard 53 operated from a winch 54.
Patent GB-1354418-A (GB)
Title: Reinforcing fabric
IPC: E04C5/06
Filed: 1971-05-14
Abstract: 1354418 Wire fabrics G REHM 14 May 1971 [21 May 1970 17 Aug 1970] 14996/71 Heading D1K [Also in Division E1] A flat mesh of concrete reinforcing rods has secured thereto a number of shaped reinforcements which lie initially in the plane of the mesh and which can be bent out of the plane to form, e.g. spacers, shear bars or reinforcement for ribs. The shaped reinforcement may be U-shaped (Figs. 1, 2, 4, 5 not shown), in the form of a frame (Fig. 3, not shown and Fig. 6), or in the form of interconnected rods or frames (Figs. 7-18, Fig. 14 only shown, Fig. 19, Figs. 20-32, Figs. 23 and 32 shown). In the embodiment of Fig. 19, a flat slab with projecting reinforcement is cast, as a floor slab. Fig. 23 shows a hollow floor slab, with a further, lower mesh 27 fixed to the shaped reinforcements. Fig. 32 shows an arrangement where bars 51 are cut at intervals to form the shaped reinforcements. Where interconnected rods are bent out, as in Fig. 32, the bent rods are initially arranged not to extend to the edge of the mesh, to avoid lapping problems.
Patent GB-652400-A (GB)
Title: Improvements in and relating to multi-channel pulse signalling systems
IPC: H01J31/06
Filed: 1948-06-03
Abstract: 652,400. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and LEVY, M. M. June 3, 1948, No. 15008. [Class 39 (i)] [Also in Group XL (c)] A distributer for the interlaced channel pulses of a multi-channel duration-modulated pulse system comprises a cathode-ray tube with a plurality of collecting electrodes, the leading and trailing edges of each pulse being used to deflect the beam on to and off a collecting electrode. In one embodiment, the beam 19, Figs. 1 and 2, in the absence of pulse input to the tube, traces a circular scan on a mica disc 23 coated with fluorescent material to facilitate monitoring. Two frusto-conical deflecting electrodes 16, 17 produce an outward radial deflection of the beam to position 18 when electrode 16 is supplied with positive durationmodulated pulses. Each pulse is arranged to deflect the beam on to an individual collector electrode 15 of which twelve are shown for a twelve-channel system. Electrodes 15 are in the form of buckets having a depth greater than either of their cross-sectional dimensions, so that their walls collect secondary electrons emitted from the base. A frusto-conical screen 20 and radial screens 21 lying between adjacent electrodes 15 reduce cross-talk between channels. A second row of collecting electrodes may be arranged along the inner beam path 19 being staggered relatively to electrodes 15 so that the outputs from corresponding electrodes in the two rows may be combined in push-pull. The bucket electrodes of either or both rows may have bases of transparent material coated with fluorescent material to facilitate monitoring. The beam is preferably suppressed during its deflection from one path to the other by short negative pulses applied to grid 11 through condenser 26, and derived by differentiating the channel pulses. In another embodiment, Figs. 3 and 4, the collecting electrodes 27 are silver coatings on the side wall 28 of the tube. Screens 29, 30 are provided and the beam is deflected between paths 18, 19. When moving in path 18 the beam strikes the glass of the end wall 31 at 32 and secondary electrons are collected at the appropriate electrode 27 to constitute the output. When the beam follows its inner path 19 it strikes the wall at 33 and screen 29 prevents secondary electrons from reaching the collecting electrode. Specification 652,361, [Group XL (c)], is referred to.
Patent GB-560995-A (GB)
Title: Improvements in the bleaching of cellulosic materials
IPC: D06L3/02
Filed: 1942-10-27
Abstract: Cellulosic material is bleached by subjecting it to the action of an aqueous solution, at a pH of about 3-11, containing an alkali or alkaline earth metal persulphate.  The process is especially useful for completing the bleaching of material already partially bleached by the customary methods, and is applicable to wood pulp, cotton linters and textile fibres, e.g. of cotton, hemp or regenerated cellulose.  Specified chlorites are those of sodium and calcium and specified persulphates are those of sodium and potassium.  In examples: (1) to (6), kraft pulps are suspended for 2 hours in an aqueous solution containing sodium chlorite and sodium persulphate, and buffered, the pH and temperature employed being, (1) 5.8 and 78-80 DEG  C., (2) 7.5 and 70-80 DEG  C., (3) 8.5 and 75-80 DEG  C., (4) 9.0 and 24 DEG  C., (5) 8.5 and 35-43 DEG  C., (6) 9.1 and 60 DEG C., and the pulp is separated and washed; (7) to (9), cotton muslin is immersed an aqueous solution containing sodium chlorite, sodium persulphate, trisodium phosphate and sodium ethyl palmitate-2-sulphonate, the duration and temperature of the immersion being (7) 1/2 hour at 80-90 DEG  C., (8) 1/2 hour at 95 DEG  C., (9) 1 hour at 95 DEG  C., and is then washed, soured in dilute sulphuric acid, again washed and ironed dry; (10) cotton muslin is soaked in an aqueous solution containing sodium chlorite, sodium persulphate and sodium diamyl sulphosuccinate and buffered to pH = 8.8, drained, steamed for 10 minutes, washed, soured, again washed and ironed dry; (11) cotton muslin is soaked in an aqueous solution containing sodium hydroxide, sodium chlorite and sodium diamyl sulphosuccinate, drained, steamed for 10 minutes, washed, soaked in an aqueous solution containing sodium chlorite and sodium persulphate, again steamed for 10 minutes, washed, soured, again washed and dried; (12) a kraft pulp is suspended for 2 hours in an aqueous solution at 60 DEG  C. containing sodium chlorite and sodium persulphate and buffered to pH = 8, and is separated and washed.
Patent GB-1458933-A (GB)
Title: Signal detector arrangement
IPC: H03D1/22
Filed: 1975-04-11
Abstract: 1458933 Transistor and diode detector circuits MARCONI CO Ltd 11 April 1975 [30 May 1974] 15090/75 Heading H3T A signal detector is selectively operative by a first bias level at 12 which causes a diode 6 to be non-conductive, an emitter follower transistor 1 to function as a linear amplifier and a product detector 13 connected to the output of the transistor 1 to be operative in response to the simultaneous presence of the first bias level and of a signal representative of an injected carrier at 19 and by a second bias level at 12 which renders the product detector 13 inoperative and causes the diode 6 and the baseemitter of 1 to function as a voltage-doubling amplitude modulation detector. The first and second bias levels at 12 are described as +5V and zero to selectively enable detection of suppressed carrier forms of modulation such as SSB and amplitude modulation respectively. An AND gate 18 enables the simultaneous presence of the + 5V at 12 and the signal representative of an injected carrier at 19 to operate the product detector transistor 13.
Patent GB-229923-A (GB)
Title: Improvements in and relating to machines for moulding baker's dough into loaves or cakes
IPC: A21C5/02
Filed: 1924-06-23
Abstract: 229,923. Pensotti, E. June 23, 1924. Hopper and plunger machines.-In a machine for moulding baker's dough into loaves or cakes of the kind in which the dough is forced into a number of equal moulds by a horizontally reciprocating compressor operated in a charging hopper by resilient means adapted to bring the compressor to rest when the moulds are full, the hopper 4 has a rectangular aperture at its lower front edge in front of which the mould 7 is removably secured. The compressor 8 slides on the base of the hopper and carries a plate which forms the base of the mould. The rear w.ail of the. hopper is formed by a stepped member 11 which can slide on the compressor and is attached thereto by springs. The compressor is operated by a two-armed lever 39, 40 pivoted at 41 and engaged by cams 24 on the shaft 3. The arm 39 carries plate springs 25 which engage a projection 31 on the compressor. The resiliency of the springs 25 enables the compressor to come to rest when the resistance of the dough reaches a predetermined amount. The dough is cut by a guillotine knife 13 carried by levers 14 and operated by a cam 28 on the shaft 3 through an arm keyed on a shaft 32, and arms 15 also on this shaft and rods 16. The upward movement is obtained through springs 29. An ejector 17 carried by arms 18 pushes the moulded dough down on to a travelling belt 19 when the compressor and the bottom plate are withdrawn. The ejector is operated by a cam 30, a spring 2 causing the return movement. The ejected loaves roll under a tongue 20 which rounds them off. The belt 19 is cleaned by a scraper 21 and brush 22. The mould 7 and ejector 17 can be changed at will to correspond with the shape and' size of loaf desired'.
Patent GB-499121-A (GB)
Title: A method and device for breaking into briquettes the notched strip produced in a ring roller press
IPC: B30B11/20
Filed: 1938-05-20
Abstract: 499,121. Moulding briquettes by rolling-machines. KOHLER, H. May 20, 1938, No. 15142. Convention date, June 7, 1937. [Class 87 (ii)] Briquettes are detached from a notched strip 2 formed by a ring-roller press 1 by striking the under side of that part of the strip projecting from a fixed support 4, with a rotating or otherwise moving tool. The moulded strip falls away from the ring 1 on to the support 4 and the end protruding from the support is struck by a loose ring 11 mounted on an eccentric disc 9 rotated in the same direction as the ring 1 through gearing from a pulley 6 on a driven shaft 5. The disc 9 is carried by an arm 7 mounted on the shaft 5 and supported by a spring 13. The detached briquettes fall into a shoot 14.