baber/WOPTO huggingface dataset:
Patent GB-294519-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1927-04-25
Abstract: 294,519. Automatic Telephone Manufacturing Co., Ltd., Paulett, W. H., and Preist, T. P. April 25, 1927. Automatic telephone systems.-Several group selectors having only four relays are described. In some arrangements, the release relay is employed also as the change-over relay, and the line relay is rendered slow-to-release by the operation of the test relay and serves to guard the selector, while in the last arrangement the line relay acts as the rotary stepping relay. Release relay used as change-over relay, Fig. 1, The release relay BC energizes over off-normal contacts N2, and holds during the impulse train over contact 14 of the vertical magnet V and back contact 1 of the line relay A. The circuit of the rotary magnet R is completed when relay BC falls back at the end of the train, the stepping relay G having been operated at the first impulse. The incoming test wire is grounded at contact 1 of the line relay A, the lower winding of which is short-circuited by the test relay H to render it slow-to-release. If the calling party hangs up without dialling, the vertical magnet V receives an impulse and disconnects relay BC at contact 14, and release takes place. In a modification, the release relay BC is held at ma.kebefore-break springs of the line relay A, receiving an impulse at each energization and each deenergization. In another arrangement, the stepping relay G energizes as soon as the selector is seized, and holds during the impulse train over a front contact of the line relay A, one winding being short-circuited by the release relay BC to render it slow-to-release. The holding circuit of relay BC is controlled by relay G instead of by the vertical magnet V. Line relay used as stepping relay, Fig. 4. The change-over relay C energizes over the incoming test wire, connecting the line relay A to the loop, and holds over back contact 61 during the impulse train. The line relay A then interacts with the rotary magnet R, the test relay H which is in series with relay A being short-circuited in the usual way until an idle line is reached. If no idle line is found in the level, cam springs CS, CS1, CS2 are operated, and relay C energizes again, connecting the line relay A to the loop, and busy tone and flash battery are transmitted.
Patent GB-529093-A (GB)
Title: Improvements in and relating to tipping gear
IPC: B60P1/16
Filed: 1939-04-12
Abstract: 529,093. Tip-wagons. WOOD HOISTS, Ltd., and HOULDSWORTH, R. April 12, 1939, No. 11083. [Class 108 (i)] In power driven hydraulic tipping gear for vehicles, the pump and container for the hydraulic medium are comprised as a unit with the ram which is arranged in an inclined position between the chassis and body. The container 7 surrounds the ram 8 and has a cover 18 bolted to the base 19 of the ram which has a pair of bearing members 20 riding on the trunnion 10 formed on a block 16 adjustably mounted by set-screws 23 on a member 15 secured to the chassis member 1. The ram is connected at 21 centrally of the body which is hinged to the chassis at 4. A gear pump 9 such as described in Specification 386,105 and driven from the vehicle lower take-off 11 through shaft 12 and universal joints 13, 14 delivers to the ram through a pipe 17 and a combined holding and overload relief valve 25 such as described in Specification 500,232 controlled by handlever 31 and rod 30. The valve 25 functions to hold the body in any position upon stopping the pump and acts as a byepass when the body is fully elevated, say to 50 deg. A plunger or rotary pumping may replace the gear pump and the ram may effect the tipping action through a cam plate.
Patent GB-948998-A (GB)
Title: Epoxy-containing copolymers
IPC: C08F214/18
Filed: 1962-03-23
Abstract: Epoxy-containing coplymers of (a) a polymerisable ethylenically unsaturated epoxide free from aromatic unsaturation and having the epoxide group non-adjacent to the double bond, (b) at least one substituted ethylene of formula: CFY=CX2 where X is hydrogen, fluorine, chlorine or trifluoromethyl, and Y is hydrogen or fluorine, and (c) an alkyl vinyl ether wherein the alkyl group is a C1- 6 straight or C1- 6 branched saturated hydrocarbon radical, may be prepared by copolymerizing the monomers; optionally in the presence of 0.1 to 20 parts by weight per part of monomers of a solvent of boiling point 150 DEG C. or less, e.g. hydrocarbons, halocarbons, hydrohalocarbons, alcohols and ketones; chain transfer agents e.g. isobutane, methylcyclohexane, 1-dodecanethiol, ethyl ether, isopropyl ether, cyclohexyl ether, tetrahydrofuran and 2-propanol; acid acceptors e.g. anhydrous metal carbonates and oxides; and initiatiors, e.g. organic peroxides and azo compounds.  Many solvents, chain transfer agents, acid acceptors and initiators are specified, those used in the examples being heptane and 1,1,2-trichlorotrifluoroethane; tetrahydrofuran; potassium carbonate, calcium carbonate and magnesium carbonate; and benzoyl peroxide and di-t butyl peroxide. Many suitable monomers are listed and examples describe the copolymerization of allyl glycidyl ether and ethyl vinyl ether with (1-12,16 and 17) tetrafluoroethylene, (13) tetrafluoroethylene and vinyl fluoride, (14) hexafluoropropene and vinylidene fluoride, and (15) chlorortrifluoroethylene; glycidyl methacrylate and tetrafluoroethylene with (18-20 and 23-25) ethyl vinyl ether, (21) isobutyl vinyl ether, and (22) n-butyl vinyl ether; and (26) 1, 2-epoxy-4-vinylcyclohexane, ethyl vinyl ether and tetrafluoroethylene. The polymers may be viscous liquids or waxy or plastic solids, and may be compounded with fillers and pigments, e.g. clays, whiting and carbon black; plasticisers; and curing agents. Specified curing agents are amines, dibasic organic acids, acid anhydrides, and mono and dialkyl phosphates, e.g. ethylenediamine, diethylenetriamine, 1,4-butanediamine, 1,6-hexanediamine, m-phenylenediamine, 4,4-1methylene dianiline, benzyldimethylamine, piperidine, oxalic acid, maleic anhydride, phthalic anhydride and mixtures of mono-and dibutyl and mono- and diisooctyl phosphates. Curing may be effected at room temperature or by heating, ultrasonic vibrations or eletron and electronmagnetic radiation.  In Example 27 the copolymer of Example 2 is cured with a mixture of mono- and diisooctyl phosphates. The copolymers may be used for coating and laminating, and for potting and encapsulating electrical components.
Patent GB-593050-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/42
Filed: 1945-05-04
Abstract: 593,050. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and LONG, D. P. May 4, 1945, No. 11440. Drawings to Specification. [Class 40 (iv)] In a circuit arrangement using a high-speed marker controlled uniselector operating in response to one or two digits and with staggered wipers driven over corresponding arcs in succession, if selection is to be made in response to two digits a test is made after receipt of the first to determine whether a movement to a preliminary contact position is necessary. The test circuit includes a steering relay which by its operation reoperates the dialling relay for receipt of the second digit. The embodiment described is identical with that described in Specification 593,049.
Patent GB-178328-A (GB)
Title: Oscillation damping device
IPC: F16F9/14
Filed: 1921-04-20
Abstract: 178,328. Girard, L. A. April 20, 1921. Fluid-friction vibiation - dampers.- An oscillating-damping device, particularly for motor vehicles, providing a progressive braking in both directions, comprises a chamber filled with liquid and divided into t w o compartments by a vane movable according to the relative movement of the suspended and non-suspended parts and provided with orifices, adapted to be covered by the vane, opening into a chamber of constant volume, also connected to the first chamber by passages provided with flap-valves to permit of entrance of liquid to that compartment which is increasing in volume. The apparatus comprises a casing a fixed to the frame mounted on an axle k connected to the suspension spring and carrying a vane c separating the compartments Y, Z which are also separated by a fixed partition j<1>. The compartments are connected to a chamber X through passages, provided with flap valves g, on each side of partition j<1> and through notches q in the ring p which register with notches r in the bottom j, the amount of registration being variable by a hand operated eccentric pin s. The notches connect the compartments Y, Z with a groove u extending over an arc and leading to the chamber X through an opening u<1>. As the vane moves,. the liquid driven from one compartment enters the chamber X through a decreasing number of notches, the braking thus increasing, and returns to the other compartment through the flap valve. To decrease initial braking on the compression stroke, direct passages are provided which are closed by initial movement of the vane, and to avoid hammer strokes, small passages are provided which remain open at the end of the movement. Corresponding to the position of the vane when the non-suspended part falls into a hollow is a passage i connecting the compartments to reduce the braking. In an alternative construction,. the compartments Y, Z communicate by a radial slot with an intermediate chamber connected by a series of holes with the chamber X.
Patent GB-702736-A (GB)
Title: Improvements in and relating to valves for atomizing fluids
IPC: F16K41/02
Filed: 1953-04-27
Abstract: 702,736. Preventing leakage from valves. JENSEN, A. April 27, 1953, No. 11536/53. Class 135 In a valve device for atomizing fluids of the kind in which the fluid enters at 3 along the axis of the valve 9 and flows out through a lateral port 14, and the screw threads 7 on the valve stem are protected from the fluid when the valve is open by a flange 10 seating on the end wall of the valve chamber, the port 14 is so positioned at the rear of the valve chamber that, at the end of each complete opening movement and the beginning of each closing movement of the valve, the flange will pass by the port. The narrow gap between the flange and the wall of the valve chamber ensures that, once the valve has been opened and the fluid has access to all parts of the valve chamber, the fluid passing the flange will have its pressure so reduced that it cannot damage the screw threads 7.
Patent GB-329118-A (GB)
Title: Improvements relating to thermionic valve amplifying systems
IPC: H03H7/42
Filed: 1929-04-15
Abstract: 329,118. Kolster-Brandes, Ltd., and Green, F. V. A. April 15, 1929. Thermionic amplifiers.-In a thermionic amplifier comprising a pair of valves in push-pull coupled by an auto-transformer to the preceding stage a resistance or choke is connected between the anode of the preceding valve and its current supply to prevent steady polarizing current from traversing the windings of the auto transformer. The Figure shows an auto transformer T1 having a primary winding P3, P4 in the output circuit of the valve V1, a condenser Cl being provided to isolate the transformer from the anode supply current of the valve VI.
Patent GB-196476-A (GB)
Title: Improvements in or relating to differential pressure gauges
IPC: G01L7/24
Filed: 1922-04-25
Abstract: 196,476. Jackson, W. J. Mellersh-, (Cochrane Corporation, H. S. B. W.). April 25,1922. ' Pressure gauges.-In differential pressure gauges of the pivoted U-tube type, two thin metal tubes arranged concentrically or side by side along the pivoting axis of the U-tube are used as leading-in pipes for the pressures and are subjected to torsion when the gauge moves. A knife-edge pivot support comprising three planes set in line, the middle one making an angle with the other two, and an improved method of gravity control are used. The high and low pressure tubes N<2>, N' are connected at the bottom by a tube N' and at the top by frame E to which is fixed the knife-edge G and a block H through which connection is made between pipes N, N' leading to the tops of the tubes, and the torsion tubes J, J<1> which communicate through a block K with the sources of differential pressure. Three, planes C<3>, C<4>, C<5>, Fig. 7, on which the Knife-edge G is supported, are formed on a block C which is fixed to a bracket B<3> having an integral sleeve B‹ surrounding the thin tubes J, J'. Downwardly projecting from the centre of the frame E is a cam O having a strap O<3> fixed to it at O<2>, passing over a fixed pulley 0<4> and carrying a weight . O<5>, the cam being shaped so as to render the gauge movements proportional to the square root of the differential pressure and the fixed pulley obviating errors due to swinging of the weight.
Patent GB-1083918-A (GB)
Title: Preparation for preventing the 'scabbing' of metal and metal alloy castings producedin sand moulds
Inventor: BRYANT ROY CLEMENT WILLIAM
IPC: B22C1/02
Filed: 1965-03-19
Abstract: A composition for preventing "scabbing" of metal castings is prepared by mixing with foundry-sand binding-agent the product resulting from melting natural basalt with or without an additive, casting, cooling, and reducing to particulate form.  The product, which may be prepared from 70% basalt, 20% borax and 10% felspar, is mixed with a starch or dextrin binding agent in the proportion of 1:9, and the resultant preparation is mixed in the proportion of 1/2 -4% with facing sand and applied to the mould face.
Patent GB-1525377-A (GB)
Title: Process for preparing emulsified fuel oil
IPC: C10L1/32
Filed: 1977-03-19
Abstract: 1525377 Emulsified fuel oil E B RHEE 19 March 1977 11739/77 Heading C5G A combustible fuel oil-water emulsion is prepared by mixing an effective amount of dextrin as an emulsifying agent with a mixture of fuel oil and water.
Patent GB-108883-A (GB)
Title: Improvements in Escapements adapted for use in Clocks and the like.
Inventor: HEDBERG GEORG JOHNSSON
IPC: G04B15/02
Filed: 1916-08-19
Abstract: 108,883. Hedberg, G. J. Aug 19, 1916. Escapements. - The balance staff 1 is at right-angles to the arbor of an escape-wheel having long pins 10, and is furnished with two collars 4, 5 from each of which extends a flat elbowed arm 6 or 7 terminating in a sloping portion 8 or 9. The arms make an angle with each other as seen along the staff, and the slopes make an angle with each other as seen at right-angles to the staff. The collars being pierced by slots 11, 12, each pin of the wheel after an interval of rest on a collar escapes through it and gives an impulse on the associated slope, after which it rests on the next collar.
Patent GB-873800-A (GB)
Title: Improvements in or relating to a method of combating slime-forming micro-organisms in industrial water
IPC: C02F1/50
Filed: 1960-04-04
Abstract: To reduce or prevent the formation of slime in industrial water, one or more olefinically-unsaturated aliphatic aldehydes which may be of the general formula <FORM:0873800/VI/1> where R is hydrogen or an alkyl radical containing not more than 5 carbon atoms is or are added to the water, e.g. 0.5 to 15 parts of acrolein or methacrolein may be added per million, e.g. with other slimicides and/or other chemicals, e.g. formaldehyde.
Patent GB-789498-A (GB)
Title: Centrifugal gas burner
Inventor: SWANSON WILLIS ROY
IPC: F23D14/20
Filed: 1956-04-18
Abstract: 789,498. Gas burners. SUTTON CORPORATION, Inc., O. A. April 18, 1956, No. 11832/56. Class 75(1) A gas burner comprises a centrifugal blower having a disc 17 supported on a hub 16 and supporting a plurality of axially extending vanes 18, a tubular shaft 10 concentrically fixed to the hub, and means, such as a cap 25, forming with the disc 17 a chamber 26 communicating with the tubular shaft 10, the disc 17 having a plurality of passages 27 therethrough each connecting the interior of the chamber with an axially extending outwardly open groove 19 in a plurality of the vanes 18. Gas is supplied by a pipe 15 to a hollow bearing 13 and passes through an opening 12 into the tubular shaft and hence to'the chamber 26. The rotation of the blower forces the gas through the passages 27 into the grooves 19 and forces air outwardly between the vanes to mix with the gas at the open ends of the grooves. An induction cone 22 directs the air into the blower. The .vanes are curved and have sharp trailing edges 20. The passages 27 open into the bases of the grooves 19. The burner output is regulated by regulating the speed of rotation of the blower. Modulating controls may be employed to match the burner output to variable heating demands.
Patent GB-1421629-A (GB)
Title: Apparatus for dismantling and assembling roll assemblies of a rolling mill
IPC: B21B31/10
Filed: 1973-03-13
Abstract: 1421629 Rolling mills WEAN UNITED Inc 13 March 1973 [24 April 1972] 11959/73 Heading B3M Apparatus for dismantling a bearing chock mounted on the journal of a rolling mill roll includes saddles for supporting the body of the roll, and a support assembly which can engage the chock and is movable horizontally to, remove the chock axially from the roll. A roll assembly 16, Fig. 2, includes a roll body 16b supported on saddles 13, bearing chocks 16d on the roll journals, and further end chocks 16e which are used for controlled bending of the roll when located in a mill stand. A work roll, having driving couplings instead of the end chocks, may replace the backing roll shown. Extractor cars 11 and 12 are axially aligned with the roll and are movable along rails 35 and 35a. Each car has an elevator 47 which is used for removing a bearing chock 16d, and a sled 61 for removing an end chock 16e The roll is supported on a wheeled carriage 10 which is movable normal to the rails 35 and 35a. The carriage 10, Fig. 3, has a further pair of saddles 15 for supporting a replacement roll 17. When the chocks have been removed from the roll 16, the carriage is movable such that the roll 17 is in alignment with the cars 11 and 12, and the chocks can be re-located on the replacement roll. The roll 16 is initially lifted on to the carriage 10 by a crane, lugs 16g on the bearing chocks being used to support the roll during lifting. The cars 11 and 12 are moved towards the roll ends, and the sleds 61, Fig. 4, are raised into engagement with the end chocks 16e. Withdrawal of each sled by a ram 64 slides the chock from the roll journal. Each elevator 47, which includes a V-shaped frame 44 for embracing a bearing chock 16d, is raised until the chock is supported, and the cars are then retracted to remove the chocks. The frame 44 is so shaped that it can accommodate the chock from either a working or back-up roll. Similarly, the sled is so arranged that it can be used for removing a drive coupling or an end chock from a roll. If the chocks and/or drive couplings are to be fitted to a replacement roll, the new roll is aligned with the cars 11 and 12 and the procedure reversed.
Patent GB-613071-A (GB)
Title: Improvements in the formation of wards of locks
IPC: E05B15/06
Filed: 1947-04-18
Abstract: 613,071. Making locks. SMITH, H. G. April 18, 1947, No. 11974/46. [Class 83 (ii)] [Also in Group XXV] Wards are provided on the front or back plate of a lock or on a separate plate attached thereto by a slitting and pressing operation from the outer side of the plate, the wards being severed at one side from the plate and integral therewith at the other side. The wards C, C may be stepped in section and are part-circular. They may be severed from the plate on the inside as shown or on the outside.
Patent GB-1345264-A (GB)
Title: Heterocyclic amino ketones containing a hydroxy phenyl radical
IPC: C07D333/22
Filed: 1971-04-29
Abstract: 1345264 Heterocyclic amino hydroxy ketones DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 29 April 1971 [30 April 1970] 12072/71 Heading C2C Novel compounds of Formula I wherein R<SP>1</SP> and R<SP>2</SP> are H or C 1-4  alkyl and X is one of the radicals of formulµ which may optionally be substituted by one or more of C 1-6  alkyl, C 1-6  alkoxy, phenyl cr halogen substituents and Y is O, S or NH and salts thereof are prepared by one of the following- methods: (a) a compound of Formula IV is reacted with a compound of formula XCOCH 2 R<SP>1</SP> in the presence of formaldehyde or a compound yielding formaldehyde under the reaction conditions, or (b) a compound of Formula IV above is reacted with a compound of one of the formulµ wherein R<SP>a</SP> and R<SP>b</SP> are alkyl or together form a ring and Hal is Cl or Br optionally with salt formation. 2 - # - Chloropropionyl - thiophene is prepared by action of HC1 on 2-thienyl vinyl ketone obtained by action of steam on 2-#-dimethylaminopropionylthiopene prepared by reacting 2-acetylthiophene, paraformaldehyde and dimethylamine. Pharmaceutical compositions in conventional forms for oral perlingual or parenteral administration and having bronchospasmolytic, cardio-circulatory and antiphlogistic activity comprise an above novel compound and a carrier therefor.
Patent GB-975151-A (GB)
Title: Improvements in or relating to composite mechanical constantspeed drives
Inventor: NORTH NORMAN FREDERICK
IPC: F16H39/01
Filed: 1960-04-05
Abstract: 975,151. Variable speed control. PLESSEY CO. Ltd. March 23, 1961 [April 5, 1960], No. 12089/60. Addition to 952,982. Heading F2D. [Also in Division F1] In a constant speed drive of the type described in the parent Specification wherein constant speed of an output shaft 10 driven through a variable ratio planet gear 12 is obtained by speed responsive control of an air motor 13 which controls the ratio of the variable gear 12 and may be driven in reverse for starting the engine by closing a vent 19 and connecting the air motor 13 to a starting pressure air line 24, the changeover is effected by a valve 20 the spool 21 of which is biased by springs 34, 35 to an intermediate position in which the air motor 13 is cut off from a vent 25 and air line 24. The valve spool 21 is fast with pistons 26, 27 the former of which is acted upon by pressure air supplied through a line 39 and manually operated valve 38 from the starting pressure line 24 whilst the latter is acted upon by pressure air supplied through a line 2 and valve 47 from an engine-driven compressor 1. During starting the valve 47 is closed and the valve 38 opened to supply pressure air to the piston 26 which moves the valve spool 21 right to connect the line 24 with the air motor 13. When the engine has started the cylinder 30 is vented by closing valve 38 manually or by a time switch (not described) and the valve spool 21 is returned to its intermediate position by the springs 34, 35. When the engine reaches its normal running speed compressor bleed air opens the valve 47 and is supplied through the line 2 to piston 27 which moves the valve spool 21 left to connect the air motor 13 with vent 25. An emergency valve 52 is opened if the alternator speed increases beyond a predetermined limit, to vent both chambers 30, 31 whereupon the valve spool 21 is returned to its intermediate position. Another emergency valve 45 is opened when the speed of the air motor 13 exceeds a predetermined limit to vent both pressure chambers 30, 31. The pressure chamber 30 is provided with a pressure relief valve 41. In Fig. 8 (not shown) the pistons 26, 27 are omitted and the valve spool lands acts as pistons.