baber/WOPTO huggingface dataset:
Patent GB-1316291-A (GB)
Title: Electronic heart pacing apparatus
IPC: A61N1/365
Filed: 1970-06-11
Abstract: 1316291 Pacemakers MEDTRONIC Inc 11 June 1970 [12 June 1969 7 Jan 1970] 28297/70 Heading A5R [Also in Division H3] A demand type heart pacemaker includes means for sensing natural heartbeats, means for generating stimulating pulses at a selected repetition rate in the absence of natural heartbeats, and means responsive to the occurence of a natural heartbeat for delaying the generation of the next output pulse until a waiting period greater than the inter-pulse period of pulses at said selected rate has expired following the sensing of the natural heartbeat. When the pacer is uninhibited, a capacitor 35 charges until it reaches a potential at which a transistor 30 conducts, discharging capacitor 35 and resulting in conduction of a transistor 15 to discharge a capacitor 74 through the heart. In such operation a capacitor 39 remains charged and said selected rate is determined by the charging time of capacitor 35, which capacitor is large compared to an R.F. by-pass capacitor 34, the output pulse-width being determined by the time taken for a capacitor 28 to charge sufficiently to turn off a transistor 20. A natural heart beat is detected by an amplifier comprising transistors 65, 60 and 48 and causes a transistor 40 to turn on to discharge capacitors 39 and 35. Capacitor 39 is thus charged via resistors 36, 37 with capacitor 35 thus lengthening the time needed for capacitor 35 to charge to turn on transistor to said waiting period. In the absence of further natural heart beats, stimulating pulses following the first stimulating pulse after the detected beat are all separated by said inter-pulse period. A circuit comprising diode 79 and transistor 55 prevents the pacer from being inhibited by its own output pulses. The normal stimulating pulse repetition rate may be adjusted by adjusting resistor 36 and said waiting period may be altered by varying the valve of capacitor 39. In the presence of repetitive noise signals occurring at a rate above the upper limit of normal heart beat rates, the timing circuit comprising capacitor 35 is at first reset by transistor 40, but continuous resetting is prevented by charging of a capacitor 44 by detected noise signals of one polarity to block passage of further signals of this polarity to transistor 40, noise signals of the opposite polarity being shunted by a diode. In the presence of such noise signals the pacer provides asychronous stimulation at a rate lower than the normal rate and at a repetition rate which is approximately equal to the sum of said waiting period and a refractory period of the heart-beat sensing amplifier. In a modified embodiment, Figure 2 (not shown), the timing period of a timing circuit of the stimulating pulse generator is changed from an intrinsic valve obtaining in the presence of natural heart beats to a shorter timing period in the absence of natural heart beats by charging a capacitor (103) from both a power supply and from a previously charged capacitor (111) in such absence, but only from the power supply in such presence.
Patent GB-427110-A (GB)
Title: Improvements relating to taps or cocks, particularly for oil drainage or like purposes
IPC: F16K5/02
Filed: 1933-10-16
Abstract: 427,110. Plug - cocks. HAWKER AIRCRAFT, Ltd., and CAMM, S., Canbury Park Road, Kingston-on-Thames. Oct. 16, 1933, No. 28601. [Class 135] A valve for draining oil from a tank &c., comprises a hollow tapered spigot 7 with radial inflow and axial outflow, held within the tapered bore of the body 5 by a threaded collar 11 and spring 13. The collar may be turned by its head 11<a> in one direction to bear positively on, and bind, the spigot in its socket ; or in the other direction to contact with the lever handle attached at 10 and withdraw the spigot if jammed.
Patent GB-1130965-A (GB)
Title: Improvements in seats, in particular for vehicles
IPC: B60N2/50
Filed: 1966-06-27
Abstract: 1,130,965. Resiliently mounted seats. BOSTROM CORP. 27 June, 1966 [10 Sept., 1965], No. 28688/66. Heading A4U. In a vehicle seat assembly in which the seat is preferably supported on parallelogram links 18 by an air spring 14, a shock absorber 40 can automatically be displaced from a low damping position to a high damping position when the vehicle strikes a patch of rough ground. When the seat oscillates to the maximum extent downwardly, bar 32 strikes plate 83 to turn shaft 84. Arm 86 on shaft 84 is correspondingly rotated and latch 64 is lowered by draw wire 88. Spring 76 thus becomes operative to move assembly 58, 54, 60 and 40, so that stud 60 abuts the end 56 of the slot in link 18. The leverage exerted by the shock absorber, about link pivot 26, is thus increased. The shock absorber is returned to the position shown by depressing pedal 92.
Patent GB-321294-A (GB)
Title: Improvements in revolving doors
IPC: E06B3/90
Filed: 1928-10-06
Abstract: 321,294. Colman, A. G. Oct. 6, 1928. Operating doors electrically and by toothed-gear mechanism.-A revolving door of the kind having radial wings or a central screen with end wings adapted to follow the contour of a. casing or vestibule is operated by mechanical means including an electric motor. As described, the door wings are mounted on a supporting spindle b which is rotated by an electric motor g through reduction gearing and a friction clutch q, p. The spindle b is carried by the usual trolley c, and the motor g is supported by a built-up platform. The motor drives the lower clutch member p through reduction gearing, as shown, the other clutch member q being keyed to slide on and rotate with the shaft r, the spring t allowing the clutch member q to slip when the door encoun. ters an obstruction. The shafts r, b are interconnected through a pin w engaging the arms v, v<1> of the shafts. Instead of the clutch and gear wheels n, o a belt or chain drive from the gear box k may be used. Switches for the motor may be placed on or near the door.
Patent GB-485657-A (GB)
Title: Improvements in or relating to silencers for internal combustion engines
IPC: F01N1/08
Filed: 1936-10-22
Abstract: 485,657. Exhaust-silencers. FOGDEN, F. T., and CHASE, A. A. Oct. 22, 1936, No. 28784. [Class 7 (ii)] A silencer comprises two consecutively-arranged compartments each containing inner and outer chambers separated by an apertured wall extending substantially the length of the compartment, the gases passing from the outer to the inner chamber in the first compartment, and from the inner to the outer chamber in the second compartment. The Figure shows a silencer divided by a partition 6 into two compartments 2, 3 each further divided by apertured cones 4, 5 into primary chambers 2a, 3a and secondary chambers 2b, 3b. The gases enter through branch pipes 7a, 7b to the chamber 2a, then pass through the apertures in the cone 4 to the chamber 2b, through perforations in the partition 6 to the chamber 3a, and thence through the apertures in the cone 5 to the chamber 3b leading by an apertured wall 5a and branch pipes 8a, 8b to the exit pipe. The entry of the gases to the silencer may be tangential, or at some other angle to the axis ; or the inlet and outlet may be adjustable by turning the ends of the casing. The parts are held together by a tie-rod 9 and may be readily detached for cleaning; or they may be formed in halves bolted together. Instead of the cones 4, 5, flat apertured plates inclined to one another may be used. The cones may be ribbed longitudinally or otherwise, and their walls and also those of the casing may be covered with sounddeadening material, or be made double with an interlining of such material. The apertures in the walls may be slots or sawcuts. Two silencers may be used in series or in parallel.
Patent GB-203285-A (GB)
Title: Improvements in and relating to photographic reproduction processes and mediums therefor
IPC: G03F7/038
Filed: 1922-10-23
Abstract: 203,285. Wadsworth Watch Case Co., (Assignees of Beebe, M. C., and Murray, A.). Aug. 31, 1922, [Convention date]. Bichromated colloid; emulsion and sensitive coatings, preparing; plates and films.-The light sensitiveness of glycerides of unsaturated fatty acids, which are only slightly sensitive normally, is materially increased (1) by producing incipient gelation of these bases, as by heating, oxidation, destructive distillation or halogenation; and (2) by the use of accelerators, such as metallic resinates, oleates, linoleates, tungates, &c., alone or in combination with a halogen which may be used in the presence of a halogen carrier such as phosphorus or aluminium chloride. Various oils such as tung oil, perilla oil, soya bean oil, &c., and the so-called drying and non- drying oils, are specified. The bases so prepared become selectively soluble or receptive to stain on exposure. Various examples of preparations are given including the use of tung oil in conjunction with iodine and lead resinate. Developed prints may be hardened as with aluminium chloride, tannic acid, or a solution of iodine in potassium iodide. Specifications 189,433 and 194,660 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also (1) the treatment of bases such as resins, fats, waxes, bitumens, rubber, esters, &c., in addition to the glycerides above-mentioned; (2) the production of incipient gelatin of bases by hydrogenation or vulcanization; (3) the production of reversed images by over-exposure; (4) the reduction of exposure by subjecting the sensitive layer to a hot air-blast during exposure, e.g. in direct copying with a metallic support; and (5) the use of different supports e.g. zinc, copper, or brass, which affect differently the sensitiveness of the base, this effect being susceptible to modification by a pro. tecting film of a dye, shellac, lacquer, glue or albumen. This subject-matter does not appear in the Specification as accepted.
Patent GB-365508-A (GB)
Title: Improvements in receiving devices for light signals
IPC: B61L3/06
Filed: 1931-10-17
Abstract: 365,508. Railway signalling apparatus. ZEISS, C., [Firm of], Carl-Zeiss- Strasse, Jena, Germany. Oct. 17, 1931, No. 28884. Convention date, Oct. 21, 1930. [Class 105.] In an arrangement of light-sensitive cells used for railway signalling, such as end carriage signalling, adapted to compensate for general illumination and to minimize the effect of malicious interference and illumination of the cells, the cells a<1>, a<2>, b<1>, b<2> are arranged in the order shown on a circle C, and connected in circuit with a battery c, the cells b<1>, b<2> being connected in parallel and in series with the cells a<1>, a2 across which are tapped off leads extending through a condenser e to the control circuit of a valve d. The effective cells a<1>, a<2> are affected by a controlled source of light, while the compensating cells b<1>, b<2> may be replaced by a single cell, each cell having the same ratio of "dark" to "light" resistance.
Patent GB-833297-A (GB)
Title: Improvements in or relating to lined package forming apparatus
IPC: B31B50/58
Filed: 1957-09-13
Abstract: 833,297. Making lined cartons. CHRISTENSSON, O. V. Sept. 13, 1957 [Oct. 1, 1956], No. 28891/57. Drawings to Specification. Class 18. The subject-matter of this Specification is identical with that described in Specification 833,296 but the claims are concerned with the drive of the feed roller for the lining.
Patent GB-1405626-A (GB)
Title: Stabilizers for synthetic resins
IPC: B01J2/28
Filed: 1973-06-19
Abstract: 1405626 Stabilizers ASSOCIATED LEAD MFRS Ltd 24 July 1973 [28 June 1972 19 June 1973] 30282/72 and 29024/73 Heading C3P A stabilizer for vinyl resins consists of granules comprising a basic lead salt of an inorganic acid and a binder which has a melting point below 25‹ C. and is a fatty acid having 10 or more carbon atoms or a mixture of fatty acids of which not more than 40% have less than 8 carbon atoms, or a phenol. The granules may also contain a plasticizer, a chlorinated hydrocarbon or a liquid lubricant. In examples the binder liquids used are a mixture of octoic, decoic and lauric acids with coconut fatty acids, isostearic acid, oleic acid, palm kernel fatty acid, coconut fatty acid, ground nut fatty acid, mixtures of coconut fatty acid with palm kernel fatty acid and oleic acid or with isostearic acid, mix cresols, an alkylated hydroxy toluene and paranonylphenol, and the lead compound is tribasic or tetrabasic lead sulphate or dibasic lead phosphite and the granules also contain lead stearate. Other ingredients of the granules include dialphanyl phthalate, chlorinated hydrocarbon. The granules are compounded with polyvinyl chloride, lead stearate, wax and calcium stearate.
Patent GB-1147156-A (GB)
Title: Surface finishing compositions containing s-triazines
IPC: B41M5/10
Filed: 1966-06-29
Abstract: 1,147,156. Polystyrene emulsion. AGRIPAT S.A. 29 June, 1966 [30 June, 1965], No. 29072/66. Heading C3P. [Also in Divisions B1 and C5] A polystyrene emulsion is mixed with 1,4- bis[2<SP>1</SP> - morpholino - 4<SP>1</SP>- N - methyl - N - n - octadecylamino - s - triazin - (6<SP>1</SP>) - yl] - piperazine, carnauba wax, montan wax, fatty alcohol polyglycolether emulsifying agents, olein, aminomethylpropanol, water, alkyl phenol polyglycol ether wetting agent, water, polyester resin, and conc. ammonia.
Patent GB-1465711-A (GB)
Title: Process for the pad-dyeing and printing of textile material of polyacrylonitrile which contains sulphonic acid groups
IPC: D06P3/76
Filed: 1974-07-01
Abstract: 1465711 Dyeing polyacrylonitrile HOECHST AG 1 July 1974 [30 June 1973] 29099/74 Heading D1B Textile materials of polyacrylonitrile containing sulphonic acid groups are pad dyed or printed in presence of a carrier of the general formula  wherein R 1 , R 2  and R 3  are H, Cl, Br, nitro or C 1 -C 4  alkyl or C 1 -C 4  alkoxy. Ar is a benzene or naphthalene ring, R 4  is C 1 -C 4  hydroxyalkyl and R 5  is H, C 1-4  alkyl or C 1 -C 4  hydroxyalkyl, cyanoethyl, C 2 -C 4 -alkenyl, benzyl or cyclohexyl The textile is preferably fixed by steaming. The carrier is present in amounts of 10-100 g per Kg of pad liquor or print paste and a non- ionic emulsifier preferaby in amounts of 2-20% by weight of the carrier may be present.
Patent GB-216448-A (GB)
Title: Improvements in or relating to shoes for horses and other animals
IPC: A01L7/04
Filed: 1923-11-19
Abstract: 216,448. Giles, W. K. Nov. 19, 1923. Addition to 197,390. Renewable calks.-Studs c for horseshoes having heads surrounded by rubber d, as described in the parent Specification, are provided with shanks c<1> which are driven into holes a in the shoe b. Recesses may be formed in the studs to receive a key for removing the studs.
Patent GB-917179-A (GB)
Title: Apparatus for storing and dispensing liquefied gases
Inventor: TEMPLER CHARLES EDWARD
IPC: F17C9/02
Filed: 1960-08-23
Abstract: 917,179. Storing and dispensing liquefied gas. BRITISH OXYGEN CO. Ltd. Aug. 23, 1961 [Aug. 23, 1960], No. 29105/60. Addition to 883,390. Class 8(2). In a liquefied gas e.g., oxygen storing and dispensing apparatus as claimed in the parent Specification and comprising a thermally insulated container 11 having a delivery pipe 14 extending from near the container bottom and through the top thereof and up which liquid oxygen is forced by pressure in the gas space 29 generated by a pressure build-up circuit comprising a liquid feed line 18 branching from the delivery pipe 14, a vaporizing coil 25 located below the container bottom, a vapour feed line 26 with a non-return valve 28 and an automatic valve 27 therein which opens when the pressure in space 29 falls below a predetermined value and wherein the main flow of liquid oxygen is through a jacket 19 surrounding the liquid feed line 18 to one end of which liquid oxygen is supplied through pipe 14 through a duct 20 and valve 21 providing a pressure drop and from the other end of said jacket 19 liquid oxygen is supplied to a service connection e.g., a revaporizing coil 22, charging of the container 11 is effected through a filling line 44 which is connected to the vapour space 29 through a line 46 and an automatic valve 47 which opens when the pressure in said space 29 rises above a predetermined value; said line 44 also being connected to the liquid space 10 of the container 11 through a storage vessel 40 and lines 43, 14. In operation and assuming the pressure in space 29 to be such that valve 47 is open, then gas flow proceeds from said space through line 46, the vessel 40, lines 43, 20, valve 21, jacket 19, line 15, vaporizer 22 and outlet valve 23 to the consumer. When pressure in space 29 is such that valve 47 closes liquid oxygen is forced up pipe 14 to line 20, valve 21, jacket 19, line 15, vaporizer 22 and valve 23 whereupon valve 27 opens and allows oxygen vapour from the pressure build-up coil 25, which is connected to the liquid feed line 18, to gain access to the space 29. Filling during the time that valve 47 is closed takes place through line 44, space 42, line 43, and down line 14. As filling proceeds valve 47 opens and allows passage therethrough of liquid oxygen to the container 11 causing cooling and pressure fall until the valve 47 recloses. During a non-withdrawal period liquid oxygen in the vessel 40 evaporates and the vapour passes up line 43 and down line 14 which includes a coil 41 serving to condense said vapour. In a modification the liquid storage vessel 40, Fig. 2 (not shown), is located in the liquid feed line 18 between the end of jacket 19 and the pressure build-up coil 25. In a further modification the jacket 19, Fig. 3 (not shown) serves as the storage vessel.
Patent GB-302018-A (GB)
Title: Improvements in steam purifiers and like apparatus for separating impurities from fluids
IPC: F22B37/26
Filed: 1927-11-01
Abstract: 302,018. Pattison, M. R. Nov. 1, 1927. Steam separators.-Separators for removing impurities from steam or other vapour, or from liquids or gases comprise a number of open bottom tubes c of stream-line section spaced apart to form between them Venturi nozzles or apertures d through which the fluid passes before entering the tubes. A steam purifier comprises a central chamber a, and two purifying chambers b, f on each side containing tubes c. The steam escapes through the tubes from the upper chamber to the lower, and thence to the central chamber, the sludge and impurities passing to a tank g, from which water may overflow into the boiler water through a valve h.
Patent GB-617450-A (GB)
Title: Improvements in or relating to devices for holding books in the open position
IPC: A47B23/06
Filed: 1946-10-01
Abstract: 617,450. Easels. NIXON, W. A., and WARD, A. E. Oct. 1, 1946, No. 29255. [Class 52 (iii)] A book rest particularly for use by a person lying in bed comprises a vertical support provided with a holder for engaging the spine of the book and upper and lower page retaining means. As shown a vertical support, comprising a column 5 slidably retained in a socket 3 by spring pressed plungers 6, has mounted on the upper end a holder 10 provided with a rod 11 'for engaging the spine of the book and upper and lower page retaining means comprising U-shaped clips 12a ... 15a and 12 ... 15 the upper retaining means being preferably mounted on an inclined arm 9 and provided with an electric light support 16. The holder 10, 11 is preferably adjustably mounted so that it may be positioned at any desired angle to the horizontal and the clips may be adjustable both as to their width and their distance from the holder 10, 11. In a modification where it is desired that the book-rest may be usable at either side of the bed the arm 9 is omitted and the clips and holder are swingably mounted on a common carrier.
Patent GB-1161755-A (GB)
Title: Method of Producing Plastics Layers containing Filler
IPC: B29C70/00
Filed: 1966-06-29
Abstract: 1,161,755. Making films containing fillers; laminates. BOFORS TIDAHOLMSVERKEN A.B. 29 June, 1966 [29 June, 1965], No. 29282/66. Headings B5B and B5N. [Also in Division C3] Plastics films are made by casting a layer of partially polymerized material in liquid form and, while the layer is substantially coherent but still sufficiently soft, allowing powdered filler to fall on to the layer and to sediment within it. Fillers mentioned are zircon sand, a mixture of iron and chromium oxides, silicon carbide, alumina, talc, labrador sand (containing feldspars, fluorite, magnetite, biotite, apatite and other minerals) and metal powder. The filler may contain organic or inorganic pigments. Suitable polymers are polyester, epoxy and acrylic resins. Different fillers can be used in combination to give decorative or durable finishes and expensive fillers can be used sparingly. Particle sizes up to 5 mm. are mentioned. The filler may be confined to the surface region. If the resin contains silicone oil, which lowers the surface tension, a more even distribution of the filler can be obtained. With an increased quantity of silicone oil a decorative uneven distribution can be obtained. The filler may be added in several stages using the same or different fillers. The filler is preferably applied from a movable screen and on its way to the film may pass through one or more sieves. A reinforcement may be applied to the finished film and a further film deposited over the reinforcement. A completed film can be laminated to a base e.g. a sheet of foamed plastic, a honeycomb member, light concrete or wood fibre slab. In an example a glass sheet coated with lecithin in styrene (mould release agent) is coated with a partially polymerized unsaturated polyester mixture containing 0À5- 1% of a silicone oil, 1-2% methylethyl ketone peroxide catalyst and 0À2% of a cobalt naphthenate accelerator with 6% cobalt content. When the layer reaches a viscosity of 100-200 cp. at 25 C. a filler of zircon sand of grain size 0À15-0À2 mm. is sifted on to the layer, passing through two sieves of 1 mm. and 2 mm. aperture on the way. After a twenty-second pause a second deposit of sand is made and this procedure is repeated to a total of six applications. After hardening for 30 minutes the 0À5 mm. layer receives a glass fibre mat reinforcement on which a second layer of polyester filled with zircon sand is laid as before, providing a finished reinforced sheet about 2 mm. thick.
Patent GB-686627-A (GB)
Title: Improved temperature controlled means for regulating the supply of liquid fuel to apparatus for delivering heated air or fluid, particularly to aircraft
Inventor: GLOVER DENYS THOMAS
IPC: B64D47/00
Filed: 1950-12-01
Abstract: 686,627. Fluid-actuated valves. DANIEL & CO., Ltd., D. A. Aug. 31, 1951 [Dec. 1, 1950], No. 29419/50. Class 135 [Also in Group XXXV] In an air heating system the liquid fuel supply is controlled by a pressure responsive valve having its spring loading adjustable by a cam driven by an electric motor (see Group XXXV) or rotary actuator controlled by the temperature of the heated air. Liquid fuel entering the control valve at 17 passes a normally open ball valve 20 into a chamber 12 and out at 19. The lower wall of chamber 12 comprises a diaphragm which is pressed down by liquid pressure against a loading spring 14, to close the ball valve 20 and regulate the fuel supply. The spring loading is adjustable by movement of the lower pressure plate 15 carried by a cam follower 21, 22 engaging a cam 4 driven by an electric motor or rotary actuator controlled by an inching device operated by a liquid expansion thermostat responsive to the temperature of the heated air.