baber/WOPTO huggingface dataset:
Patent GB-1465806-A (GB)
Title: Electro-mechanical disc adder mechanisms
IPC: D05B55/14
Filed: 1974-06-13
Abstract: 1465806 Sewing machine; zig-zag drive SINGER CO 13 June 1974 [16 July 1973] 26194/74 Heading D1G Changes in position of the needle bar in a swing-needle sewing machine are effected by changing the total axial length of a stack of cam discs using electromagnets. One end disc 70 is made fast to the shaft 25, and the position of the opposite end disc along the shaft is 'monitored by a roller 31 and conveyed to the needle gate by a pivoted lever 29 and the bar 26. Alternate discs 50 in the stack are keyed to the shaft 25, the others 60 are freely rotatable. When elements 80 and 97 on adjacent discs are aligned the discs separation increases by one increment: by aligning the appropriate discs the desired total length of the stock may be achieved: by arranging the elements 80 and 97 of different discs to be different heights a binary sequence of increments may be generated. Due to friction between them all the discs rotate together unless interrupter arm 100 is moved by its electromagnet 104 to intercept a stop member 92 or 95 on one of the freely rotating discs 60. As the adjacent keyed disc continues to rotate the element 97 on the stopped disc rides up or down a ramp 81 to either add one increment to or subtract one increment from the length of the stack. Once the element is in its new position the interrupter arm is moved away from the stop member to allow the disc 60 to rotate again in its new angular position with respect to disc 50. The interrupter arm is kept out of contact with the stop elements by eccentric cam surfaces 75, 76 on disc 50 until the stack length is altered again.
Patent GB-748809-A (GB)
Title: Improvements in or relating to electric pulse communication systems
Inventor: CATTERMOLE KENNETH WILLIAM
IPC: H03K5/15
Filed: 1953-09-24
Abstract: 748,809. Thermionic distributers. STANDARD TELEPHONES & CABLES, Ltd. Sept. 24, 1953, No. 26299/53. Class 40 (3). [Also in Group XL (c)] A distributer circuit comprises a ring of normally blocked mono-stable two condition trigger devices 2, 3, 4 ... 5, each arranged to generate an output pulse on being triggered, a train of timing impulses from a generator 1 being applied simultaneously to all the devices, and each device having a delay network connected with its output to transmit a delayed unblocking pulse to the next device in the ring. Thus, when one trigger device is unblocked by some starting means, the circuit emits an output pulse in succession round the ring from each device and continues to act thus indefinitely while the driving potentials are maintained. In the particular trigger unit shown in Fig. 2 a crystal triode 19 is used in substantially the same way as in Fig. 3 of Specification 726,496, [Group XL (c)]. Input electrode 30 is connected to electrode 20 of the crystal through a rectifier 32, while input electrode 31 is connected to electrode 22 through a rectifier 34 and a negative voltage bias 33. Normally the amplitude of the pulses received at the triode are not sufficient to counter the negative bias but, if a delayed output pulse from the adjoining device in the ring arrives along connection 10 at approximately the same time as the timing pulse, the triode is triggered and a positive output pulse is produced in electrode 21 and conductor 7 of duration determined by inductance 27 and capacity 28. A negative output pulse is at the same time produced from electrode 22, and is fed through delay network 29 to unblock the next stage in the ring. The apparatus shown is applied to a multiplex telegraphy system signals for each channel being applied to its corresponding signal device through terminals 45 and 46. The latter are connected to a circuit 44 which modulates the output pulse in line 7. The latter connection from each unit is connected to the common line 18.
Patent GB-1182987-A (GB)
Title: Crystallizable Glass Composition
Inventor: HOFFMAN LEWIS CHARLES
IPC: C03C4/00
Filed: 1968-05-31
Abstract: 1,182,987. Capacitors; printed circuits, resistors. E.I. DU PONT DE NEMOURS & CO. 31 May, 1968 [1 June, 19671, No. 26337/68. Headings H1M, H1R and H1S. [Also in Divisions C1 and C7] Screen-printed crossover dielectrics, capacitor dielectrics, or resistors or conductors are formed using a glass-ceramic precursor. A 96% alumina substrate already having a screenprinted conductive plane of Pt/Au composition containing Bi 2 O 3 , vehicle, and glass (63À1% CdO, 16À9% B 2 O 3 , 12À7% SiO 2 , 7À3%. Na 2 O) fired at 1050‹ C., has a crossover dielectric print of a paste of the precursor applied and fired to a glass-ceramic layer at 850‹ C. A further Pt/Au conductor layer is then applied to conform to the configuration of the dielectric layer and fired at 750‹ C. without softening of the dielectric layer. A similar method may be used to form a capacitor. A hermetically sealed electronic component is formed by applying the precursor paste to a 96% Al 2 O 3  ceramic substrate, drying, printing with a metallizing composition containing Pt, Pd and vehicle, drying, printing in 2 separate steps 2 ring patterns of the precursor paste, drying, overprinting in a ring pattern with the metallizing composition, drying and firing the article in a lehr at 1000‹ C.; a Fe/Ni/Co metal cap is then soldered with 62% Sn/36% Pb/2% Ag solder to the top metallization layer. The glass-ceramic precursor is a glass consisting essentially, in wt. per cent of SiO 2 , 20-38; PbO, 21-45; Al 2 O 3 , 1-25; TiO 2 , 2-20; BaO, 2-15; ZnO,0-25; PbF 2 , 0-15; SrO, 0-5; ZrO 2 , 0-5; Ta 2 O 5 , 0-5; WO 3 , 0-5; CdO, 0-5; SnO 2 , 0-5; Sb 2 O 3 , 0-5. On firing the precursor at 800-900‹ C., a glass ceramic containing <50% wt. crystalline phase results by a single nucleation and crystallization. The glass ceramics are basically in the system BaO-PbO-Al 2 O 3 -TiO 2 -SiO 2 . The crystals are BaAl 2 Si 2 O 8  (hexacelsian) which is a feldspar of cubic symmetry and Al 2 TiO 5 . In this system some PbO may be replaced by ZnO, and some BaO by SrO. Alkalis and B 2 O 3  are absent. The batch is melted at 1100-1500‹ C., and may be shaped or formed into frit. In powder form the glass may be dispersed to form a paste in an inert vehicle, e.g. water, an aliphatic alcohol, an ester, a terpene, a solution of natural or artificial resin, e.g. polymethyl methacrylate or ethyl cellulose in pine oil or the monobutyl ether of ethylene glycol monoacetate. The vehicle may contain wax or thermoplastic artificial resin. The vehicle may form 5-50 wt. per cent of the composition. A metallizing composition may comprise 4-99% metal powder and 1-96% wt. procursor. The metal may be Au, Pt, Ag, Rh, Ir, Mo, W, Fe, Ni, Cr, Cu, Zr, Th, or oxides, or alloys or mixtures thereof. The metal particles may have size 0À01-40 Ám, and the precursor particles, 1-50Ám.
Patent GB-159541-A (GB)
Title: Improvements in the valve gear of three and four-cylinder locomotives
IPC: F01L29/04
Filed: 1919-10-28
Abstract: 159,541. Holcroft, H. Oct. 28, 1919. Link-motions and linkage gears.-Locomotives with three or four cylinders are provided with two primary valve-gears, and the other valve or valves are worked by these in combination through linkage mechanism in such a way as to permit any desired arrangement of cranks. The outside cranks C<1>, C', Fig. 1, are arranged at 90‹ to one another, and at 135‹ to the adjacent cranks C<2>, C<3>. The valves of the outside cylinders c<1>, c<4> are worked by two Walschaert gears, and the valves of the cylinders c<2>, c<3> are worked from these by links a<1>, l<1>, d, l, levers a, e, with fixed pivots a<2>, e<1>, and a floating lever c with a sliding pivot b<2>. A modification of this construction is described wherein two floating levers are used. In the three-cylinder engine shown in Fig. 6, the valve of the cylinder c<2> is operated by a bellcrank a mounted, by means of a slidable fulcrum, on a lever b connected to the gear of cylinder c<1>, and oscillated, through links e, and bell-crank d, by the gear of cylinder c<3>. Modifications are described wherein the bell-crank is provided with a third arm which actuates a fourth valve either directly, or through a rocking lever.
Patent GB-1189745-A (GB)
Title: Monument.
Inventor: HENRIKSEN LOUIS GEORGE JR
IPC: E04H13/00
Filed: 1968-06-04
Abstract: 1,189,745. Monuments. L. G. HENRIKSEN. 4 June, 1968 [31 July, 1967], No. 26429/ 68. Heading E1A. A monument is erected from a housing 8 consisting of prefabricated walls and a cover 10 which are assembled to-gether on site and filled with a cementitious material, a plaque may be attached by studs to the housing, which studs are then bent over and embedded in the filling material to-gether with handles 36 on the walls and the interconnecting studs 34 thereof. For materials employed and minor modifications the Specification should be referred to.
Patent GB-246923-A (GB)
Title: Improvements in or relating to loud speakers for use with wireless receiving sets
IPC: H04R1/34
Filed: 1924-11-06
Abstract: 246,923. Edmonds, R. W., and Webb's Crystal Glass Co., Ltd. Nov. 6, 1924. Loud - speakers.- A loud-speaking tele phonic receiver con sists of a hollow base 1, containing a sound. reproducing unit 2 a tapered tube 3 having its smaller end opening into the base 1, and an in verted reflecting bowl 4 supported over the larger end of the tube 3. A gallery 6 7, 8 may be used for supporting the bowl 4, or the base 1 and bowl 4 may be independently supported from the ceiling o: an apartment. The bowl 4 may have a central indentation 5. A flexible connection 12 may unite the tube 3 and sound unit 2. Electric lamps 10 disposed within the bowl 4 may be fed through wiring 11. The tube 3 and bowl 4 may be made of glass.
Patent GB-1318591-A (GB)
Title: Apparatus for feeding material
IPC: B05B7/14
Filed: 1970-06-02
Abstract: 1318591 Pneumatic conveyers RANSBURG CORP 2 June 1970 [2 June 1969] 26535/70 Heading B8A [Also in Divisions F2 and G3] Particulate material 13 for delivery to an electrostatic spray gun 15 is withdrawn from a storage receptacle 27 by a Venturi device 14 at a rate determined by the rate of air flow in a conduit 21 coupled to said device 14. The conduit 21 is connected to an outlet of a flow control device 11 which has an inlet connected to a source of pressurized air 16 and a further outlet coupled by a conduit 20 to a conduit 22 on the downstream side of the feeding means 14. The device 11 controls the flow differentially to the respective outlets whilst maintaining the total flow substantially constant. The receptacle is provided with an agitator 25 and a fluidizing base 26. The device 11 comprises a housing 4 with an air inlet 51 and air outlets 52, 53 in communication with a bore 55 in which a flow divider is movable. The divider is secured to an adjusting hand wheel 50 and comprises two frusto-conical members 47, 48 adjustably mounted back-toback. The faces of the members co-operate with chambers 43, 44 to control the flow to the respective outlets. In an alternative embodiment, Fig. 3 (not shown), an adjusting hand wheel (94) is coupled to a sliding block (92) which in turn moves a pin (93) coupled to a flow divider (86). Adjustment between the divider and the respective chamfered surfaces (89), (90) is provided by the chamfer surface (90) being mounted in a plug (99) axially movable in the bore (100). In a further embodiment Fig. 4 (not shown) the respective outlets (61), (63) of the flow control device (34) are proportionally controlled by signals from a control signal source (64) which senses for example the speed of a conveyer (not shown) moving articles past the spray gun, to thereby ensure a consistent coating of such articles.
Patent GB-1389383-A (GB)
Title: Internal combustion engine having fuel injection into a premixed charge
IPC: F02B75/02
Filed: 1973-06-04
Abstract: 1389383 Working cycles TEXACO DEVELOPMENT CORP 4 June 1973 [21 June 1972] 26536/73 Heading F1B A method of operating an I.C. engine comprises providing a pre-mixed fuel/air charge in the combustion chamber(s), injecting a pilot spray of fuel into the combustion chamber(s), forming a pilot flame by igniting the mixture formed by the pilot spray, by positive ignition and igniting the pre-mixed charge by the pilot flame. The premixed charge is formed by injecting fuel from a nozzle 7 into an intake pipe 6. A fixed quantity of fuel is injected by a pilot nozzle 1, during the period 0-40 degrees before TDC and forms a rich mixture which is ignited by a spark plug 2 and ignites the premixed charge which has a fuel/air ratio about 50% of stoichiometric ratio. This mixture strength is kept constant throughout the lower power levels of engine operation, the output power being varied by controlling the amount of mixture, engine speed being constant. Thereafter the mixture strength is progressively increased from 50% to 120% of stoichiometric. In a modification fuel is injected directly into the cylinder through nozzle 7b to form the pre-mixed charge. In a through flow two-stroke engine, air is admitted through cylinder ports and fuel is injected directly into the cylinder or into the airstream upstream of the ports. An engine driven or exhaust-gas driven blower may be provided. Combustion gases are exhausted through two valves in the cylinder head.
Patent GB-482519-A (GB)
Title: Improvements in and relating to household refrigerators
IPC: F25D11/02
Filed: 1936-09-30
Abstract: 482,519. Refrigerators. ALIG, (nÚe BAIRD), C. B. Sept. 30, 1936, No. 26586. [Class 29] A compartment B for storing fur coats and other wearing-apparel is provided in a refrigerating cabinet having the usual food storage compartment A and is cooled by a coil 18 in the same circuit as the main cooling unit 32 of the cabinet. The coil 18 is located at the bottom of its compartment to ensure that no moisture falls on to the clothes &c., and is covered by a grating 34 through which a circulation of air is effected by a fan 36, Fig. 3, driven by a small motor 38. A drip pan 46 is located below the coil, which may be cut out of the main circuit by valves 42, 44. Deflector blades 40 are provided to distribute the air current from the fan.
Patent GB-427279-A (GB)
Title: Improved tool for extracting teeth
IPC: A61C3/14
Filed: 1934-09-17
Abstract: Steel quenched at 220 DEG  C. is used for making tooth-extracting tools.
Patent GB-1439197-A (GB)
Title: Method and apparatus for dispensing under pressure a mixture of  liquids
IPC: B65D83/14
Filed: 1973-06-04
Abstract: 1439197 Dispensing liquid by gaseous pressure L'OREAL 4 June 1973 [5 June 1972] 26621/73 Heading F1R [Also in Division B1] In a device for dispensing a mixture of several liquids from separate containers subjected to gaspressure, adjustable valves are provided in the flow duct from each container to control the ratio of flow separatly. The device includes a nozzle for connection to a source of pressurized propellant fluid whereby the containers may be pressurized. As shown a device of the type described in Specication 1034528 is provided with adjustable flow valves 24a, 24b in the flow ducts to the mixing chamber 12. Tubes 18a, 18b connect the containers (1), (2) to a connector 21 through a shut-off valve 20 for supplying pressure fluid to the containers. As shown the connector communicates through a pressure regulator 22 with a pressurizing fluid reservoir 23. In modification Fig. 5 (not shown) the containers have non-return valves through which the tubes 18a, 18b communicate with the containers. The reservoir 23 may contain gaseous or liquid pressurizing fluid. The containers (1), (2) may be initially pressurized, before inigition in the device.
Patent GB-894906-A (GB)
Title: Removal of metal contaminants from petroleum fractions
Inventor: PEET NICK PETER
IPC: C10G21/00
Filed: 1958-08-19
Abstract: 894,906. Purifying asphaltic petroleum fractions. ESSO RESEARCH & ENGINEERING CO. Aug. 19, 1958, No. 26664/58. Class 91 A process for treating a petroleum fraction containing a major proportion of components boiling above 900‹ F. and containing metal contaminants comprises countercurrently contacting the feedstock in a deasphalting zone with a liquefied normally gaseous hydrocarbon, and also contacting the feed with a separate fraction of a catalytic cycle stock having a specific gravity between 1À05 and 1À2, under conditions such that there are produced a deasphalted oil phase containing only trace amounts of metals and an asphalt phase containing substantially all the metal contaminants and separately withdrawing said phases. The deasphalting zone may comprise a plurality of phases with a temperature gradient increasing towards the point of withdrawal of the deasphalted phase. Specified normally gaseous hydrocarbons are ethane, propane, propene, butane, butene and mixtures thereof. They may be used in amounts between 2 and 10 volumes/volume of feed. The deasphalting temperature may be between 100‹ and 300‹F. with a temperature gradient of up to 60‹ F. The cycle stock fraction should be cut above 900‹ F., e.g. 900‹ to 1050‹F. and may have a softening point between 100‹ and 125‹F. Several refining processes incorporating the process of the invention are described and illustrated diagrammatically. In Fig. 2 a crude petroleum residuum is introduced into the middle of deasphaltizing zone 11 where it meets a countercurrent of ascending liquefied normally gaseous hydrocarbons introduced at 14 and a descending fraction of a catalytic cycle stock. Asphalt containing metallic contaminants is removed at 18. The de-asphalted oil is removed via line 17, stripped of light hydrocarbons in stripper 35 and passed via lines 38 and 26 as feed to catalytic cracking zone 28. Items 21 and 30 are fractionators for the whole crude and cracked products respectively.
Patent GB-711298-A (GB)
Title: Improved plug closures for handholes and the like of pressure vessels
IPC: F16J13/04
Filed: 1951-11-14
Abstract: 711,298. Plug closures for hand-holes &c. LAURENT, M. P. Nov. 14, 1951, No. 26684/51. Class 123(1) [Also in Group XXVI] A closure for a pressure vessel 1 having a tapered hand or man-hole 2 comprises a plug 3, which has a maximum diameter less than the minimum diameter of the hole 2 and an outer surface 4 of lesser taper than that of the hole, and an interposed' distortable hard metal sealing ring 7 having its outer and inner surfaces tapered to correspond to said hole and plug respectively. The plug 3 is retained in place, with an end flange 6 thereof in contact with the ring 7, but a nut 11 which is screw-threaded on a stem 8 projecting outwardly from the plug to bear on a capmember 10, the latter extending over the hole 2 and being provided with a marginal flange 12 to engage an axial projection 13 therearound.
Patent GB-496522-A (GB)
Title: Improvements in or relating to the control surfaces of aircraft
IPC: B64C9/18
Filed: 1937-10-02
Abstract: 496,522. Controlling aircraft. FAIREY AVIATION CO., Ltd., and TROTTER, J. C. Oct. 2, 1937, No. 26733. [Class 4] In an aircraft having a flap as described in Specification 467,465 a spoiler is provided which is brought automatically into action when the flap is lowered beyond the position corresponding with maximum lift to close the gap between the under surface of the wing and the leading edge of the flap. As shown, the flap c is mounted by links d, e on a U-shaped bracket b on the aircraft wing. The spoiler j is pivoted intermediate its chord on the trailing edge of the wing and is connected by a link h to a bell-crank lever f, g. Lowering of the flap c beyond the position of maximum lift causes an anti-friction roller k on the link d to engage the arm f of the lever and raise the spoiler against the action of a spring-pressed plunger m.
Patent GB-1062180-A (GB)
Title: Non-destructive readout magnetic memory
Filed: 1964-06-29
Abstract: 1,062,180. Magnetic storage devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 29, 1964 [June 28, 1963], No. 26781/64. Heading H3B. [Also in Division H1] A non-destructive read-out magnetic memory comprises a storage layer 10 formed of a film of isotropic ferromagnetic material having a coercivity of at least 50 oersteds and a read-out layer 12 bonded thereto formed of a film of isotropic ferromagnetic material of lower coercivity. As shown in Fig. 3 the films are arranged in a sandwich on a glass substrate 14 with drive wires 16, 18 insulated from each other and the soft ferromagnetic read-out film 12 of a nickel/ iron alloy. Between the film 12 and storage film 10 of material having a coercivity of 50 to 1000 oersteds and insulated therefrom are diagonal sense wires 28. Initially, the film 10 is uniformly magnetized in the direction 60 by means of an electromagnet, the read-out film 12 being magnetized in the opposite direction. To write information into an area of the storage film over one of the intersections of the horizontal and vertical drive wires the tip of a magnetic probe is placed over the area so that the latter is magnetized in the direction 64 and the area of the film 12 underneath the intersection in the same direction shown by arrows 66. When the magnetic probe is removed the direction of magnetization in the read-out layer 12 changes to the direction shown at 70. To read-out the bit 70 stored in the read-out layer half select currents are passed through wires 16b, 18a so that the magnetization of the area 70 is reversed. When the currents are cut off the magnetization of this area will be restored by the external field of area 68 of the storage layer 10 and a current is induced in sense winding 28 (a) indicative of a binary " 1." In an area not subjected to action by the magnetic probe the directions of magnetization of the respective areas of films 10, 11 will be as shown at 72, 74 so that then the area 74 is interrogated by currents in 16b and 18b there will be no reversal of the magnetization at 74 and no induced current in 28b indicative of a stored binary " 0."
Patent GB-349396-A (GB)
IPC: F01D25/26
Filed: 1930-09-08
Abstract: 349,396. Turbine casings. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Flanders, W. B. ; 6043, Ellsworth Street, Philadelphia, U.S.A.) Sept. 8, 1930, No. 26783. Convention date, Sept. 10, 1929. [Class 110 (iii).] The end wall of a turbine casing is provided with a slot 24 near the opening for a shaft 19, which is surrounded by a liquid sealing gland 23, to permit radial expansion of the hot outer portion 22 without straining the cool inner portion 21. The slot is parallel, or approximately so, to the horizontal joint 16 of flanges 13, 14, secured by bolts 15. Additional long bolts 26 are provided. Brackets 17 integral with the lower half casing are constructed to support the casing. A dished cover 25 is bolted over the slot 24.