baber/WOPTO huggingface dataset:
Patent GB-462710-A (GB)
Title: Improvements in heat exchangers for thermal power plants, in which gaseous working medium, preferably air, continously describes a closed cycle under pressure
IPC: F02C1/10
Filed: 1936-01-01
Abstract: 462,710. Hot-air power plant. AKT.- GES. FUR TECHNISCHE STUDIEN. Jan. 1, 1936, No. 21103. Convention date, July 12, 1935. Divided application. [Class 7 (i)] [Also in Group XXVI] In a turbine plant, air is heated in a furnace 2 and led to a turbine 3 which drives a multi-stage compressor 5 and an electric generator 4, the exhausted air passing to a heatexchanger 7 in which the air from the exhaust pipe 6 heats the compressed air entering from a pipe 9. The latter then passes through a pipe 8 to the furnace 2. The air pressure is kept above atmospheric throughout the cycle, and is approximately constant in the two streams flowing through the exchanger 7. The air passing from the turbine flows through the exchanger 7 at a greater velocity than the air from the compressor, which passes upwards through the exchanger. The velocities of the lowpressure and the high-pressure gases are approximately inversely proportional to the roots of the absolute pressures of the gases. The difference of temperature between the two gases in the exchanger 7 is kept below 70‹ C. Air exhausted from the turbine 3 has a pressure of at least 2 kg. per sq. cm. The pressure ratio between the re-compressed and the expanded media is not less than 2. The exchanger 7 may be in more than one part, the part at a lower temperature being made of steel or copper and the part at a high temperature of steel alloy. One system of tubes may replace the double-pipesystem 7<1>, 7<2>, one current of air flowing around the tubes.
Patent GB-884855-A (GB)
Title: Improvements in or relating to nuclear reactor shielding
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C1/00
Filed: 1957-07-05
Abstract: 884,855. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 1, 1958 [July 5, 1957], No 21320/57. Class 39(4) A shield between a reactor and a heat exchanger assembly in a common pressure vessel comprises a section with part annular passages near the periphery so as not to be in line with the fuel-containing part of the core, and a ring of shielding overhanging the passages on the heat exchanger side. A double-walled pressure vessel 1 contains a reactor 2 and heat exchanger 3 and a shield of layers of boron steel 26 and graphite blocks 25 in a mild steel casing 24; the layers of steel increasing and of graphite decreasing in thickness away from the reactor. The shield has passages 7, overhung by a shielding ring 8 of graphite in steel at one end and having a shaped extension 9 at the other, parts 8 and 9 being held by tie bolts 42. The pressure vessel has perforated rings 14 as spaces and external stiffeners 15 and longitudinal keys. Fig. 2 (not shown) shows details of the fastening of the shield in the vessel and of the vessel in a support structure. Gaseous coolant flows through a reactor and grid 43 to the heat exchangers (arrows 44) and back through concentric annular passages 12 and 23 (arrows 47). Specification 803,382 is referred to.
Patent GB-238083-A (GB)
Title: Improvements in shirt folding tables
IPC: D06F89/02
Filed: 1924-09-09
Abstract: 238,083. British-American Laundry Machinery Co.., Ltd., (American Laundry Machinery Co.). Sept. 9, 1924. Folding shirts after ironing.-In an appliance for folding shirts after ironing, such as that described in Specification 131,213, there is provided means for inserting a permanent former about which the shirt is folded. A neck-band former 7 is housed within a recess 3 having a flanged longitudinal extension 4 to receive the buttons of the shirt which is laid face downwards over the recess. Carried on the pivoted plate 16 which comprises the temporary former is an adjustable cross-bar 21 on which is supported the permanent former 22, which, after the shirt has been folded therearound, is withdrawn with the shirt from the temporary former.
Patent GB-351770-A (GB)
Title: Improvements in pistons for internal combustion engines
IPC: F02F3/00
Filed: 1930-07-17
Abstract: 351,770. Pistons. BORGO, C. and ROSAZZA, E. M., (trading as BORGO PISTON CO.), 173, Via Nizza, Turin, Italy. July 17, 1930, No. 21633. Convention date, Dec. 20, 1929. [Class 122 (i).] In order to reduce the danger of seizure a piston is formed with grooves 4 in the neighbourhood of the gudgeon-pin bosses 1, the grooves being of maximum depth and width in the plane of the gudgeon-pin and tapering both in depth and width to the junctions between the gudgeon-pin surfaces a and the bearing surfaces b of the piston. The grooves may be of V-section. The gudgeon-pin bosses may be supported by transverse webs 3.
Patent GB-969740-A (GB)
Title: Process for the preparation of s-(carbamido methyl)-thiol-and thionthiol-phosphoric acid esters
IPC: C07F9/165
Filed: 1963-05-30
Abstract: O, O-Dialkyl-S-(carbamidomethyl)-thiol- and thionothiol phosphoric acid esters are prepared by a process wherein a salt of O, O-dialkyl thiol or thionothiol phosphoric ester or a mixture of the free O, O-dialkyl thiol or thionothiol phosphoric ester with an acid binding agent is reacted with chloroacetyl chloride in a molar-ratio of about 2:1, and the resultant intermediate is reacted with a primary or secondary amine in a molar-ratio of about 1:2.  The salt used is that of sodium, potassium, ammonia, or an aliphatic amine, suitable acid binding agents are potassium carbonate or a tertiary amine.  The reaction is performed in an inert solvent, such as a hydrocarbon, a chlorinated hydrocarbon, or an aliphatic ketone, at temperatures between 0 DEG  and 50 DEG C., suitably by dropwise addition of the chloroacetyl chloride to a solution or suspension of the O, O-dialkyl-thiol, or thionothiol phosphoric acid ester, which is in salt form, or as free ester with an equivalent amount of acid binding agent, in the preferred inert solvent. After the weakly exothermal reaction has subsided, the precipitated salts, (e.g. ammonium chloride) are optionally filtered off, and the appropriate amine is passed in at 0-50 DEG C. Insoluble reaction products (i.e. O, O-dialkyl thiol- or thionothiol phosphoric ester amine salts) which may be re-used in the process of the invention, are removed, e.g. by washing out with water or filtration and the desired product in solution in the inert solvent, may be isolated by conventional procedures, (e.g. evaporation and crystallization).  Examples are given for preparation of: O, O-dimethyl-S-(N-methyl-carbamido-methyl)-thionothiol phosphoric ester; the analogous O, O-diethyl ester; O, O-dimethyl-S-(N-morpholyl carbamido-methyl) thionothiol phosphoric ester, and O, O-diethyl-S-(N-isopropyl - carbamido - methyl) - thionothiol phosphoric ester.  The uses of the process lie in preparation of known insecticides from simple, readily available starting materials, by way of a good yield, single stage reaction, in a high state of purity. Specifications 663,270 and 932,011 are referred to.
Patent GB-639795-A (GB)
Title: Improvements in or relating to apparatus for controlling variable conditions
IPC: G05D7/01
Filed: 1947-08-08
Abstract: 639,795. Fluid-pressure servomotor-control systems. ELECTROFLO METERS CO., Ltd. Aug. 8, 1947, No. 21819. Convention date, Feb. 2, 1946. [Class 135] Apparatus for controlling inter-related conditions comprises a chamber, a plurality of diaphragms in the chamber all exposed on one side to the pressure in the chamber which is related to all the conditions, the diaphragms being exposed on their other sides to pressures related to the several conditions respectively, a pair of devices connected to two of the diaphragms respectively and to the ends of a floating lever so that the movements communicated to the lever are proportional to the square roots of the pressures across the diaphragms, a third diaphragm connected to the lever, and means responsive to the total force on the third diaphragm to control one of the conditions. In an embodiment, apparatus for controlling the flow of feed water to a boiler 10 comprises three interconnected diaphragms 33, 34, 29, responsive, respectively, to steam flow from the boiler, feed water flow to the boiler, and water level in the boiler, the resultant force produced by the diaphragms actuating a valve 12 controlling the flow of feed water. Steam from the boiler flows through a superheater 15 which serves as a restriction to produce a pressure differential responsive to the flow, and the pressure at the outlet end of the superheater is applied to the outer surface of diaphragm 33 which is also loaded by a spring 50. Similarly, the feed water supply to the boiler is passed through an economiser 13 serving as a restriction and the pressure at the inlet end is applied to the outside face of diaphragm 34 in opposition to the loading spring 47. The two diaphragms are connected by links 36, 37 to pivoted cams 35, 38 around which are draped chains 39 connected to a beam 41, and the cams are so shaped that the movements applied to the beam are proportional to the square roots of the diaphragm movements. Beam 41 is connected through a spring 42 to the third diaphragm 29, the space on the outer face of which is subjected to the pressure due to the hydrostatic head in the boiler. The space enclosed by the inner surfaces of the diaphragms is connected through a constant liquid level pot 45 to the space above the water level in the boiler so that the pressure applied thereto is the steam pressure in the boiler plus the pressure due to the liquid column in pipe 44. Diaphragm 29 is connected to one end of a lever 25 pivoted at 27 and sealed by a bellows 28, and the other end of the lever constitutes a valve 23 controlling the leak from a pressure fluid supply 19. The control pressure produced in the circuit downstream of a restriction 21 is applied to a diaphragm motor 18 to actuate the valve 12, and is also applied to a diaphragm 32 connected to lever 25 so as to re-set valve 23. The control pressure can be read on a gauge 24. Specification 635,731, [Group XXVI], is referred to.
Patent GB-170409-A (GB)
Title: Improvements in or relating to boot or shoe welt-sewing machines
IPC: D05B15/00
Filed: 1920-07-21
Abstract: 170,409. Gouldbourn, J., Woodcock, R. B., and British United Shoe Machinery Co., Ltd. July 21, 1920. Sewing-machines; trimming or cutting.-Weltslashing mechanism, provided with a counting- device for determining the number of slashes to be made before the mechanism is thrown out of action, is arranged so that the throw-out'mechanism cannot be prevent from operating, and is provided with re-setting means for the counting- device. The welt-slashing knife 11 is carried by a bar 9 actuated from a cam through mechanism 31, 29, 25, 19, 13. The member 29, during part of the stitching action, oscillates idly about the pivotal connection 27 with the link 25 and oscillates about a bowl 47 as pivot, to operate the knife 11, when a lever 51 is lowered into position opposite an abutment 49. The lever 51 is so lowered by aspring 65 when a treadle-operated lever 61 is turned to remove a stop 57 out of the way of a projection 55 on the lever 51. During the slashing operation, link 71, lever 73, and pawl 77 cause the step-by-step rotation of a ratchet wheel 81 until a part 103 on the wheel engages an arm 105 of the lever 51 and raises it. The spring 65 then raises the lever 61 which, by its upper end, withdraws the pawl 77 and a detent 83, whereupon a clock-spring returns the wheel 81 to its initial position. The initial position of the wheel 81 is determined by a stop 101 upon a notched disc 93 which is adjusted to and locked in a position determining the number of oscillations of the knife 11 before the part 103 reaches the lever-arm 105. When the disc is in zero position the part 103 holds the mechanism permanently out af action and independent of the movement of the lever 61.
Patent GB-1436667-A (GB)
Title: Carpet sweepers
IPC: A47L11/33
Filed: 1974-05-17
Abstract: 1436667 Carpet sweepers PRESTIGE GROUP Ltd 7 Jan 1975 [17 May 1974] 22057/74 Heading A4F A carpet sweeper has a brush 4 which is rotated in a single predetermined direction by drive mechanism operated by movement of the sweeper in first and second sweeping directions, the drive mechanism including a flow engaging drive wheel 12 which drives the brush 4 through a first transmission which includes a driving belt 8 when the sweeper is moved in the first sweeping direction. In the illustrated embodiment which comprises two brushes 4, 5, two floor engaging wheels 12 are mounted on a spindle 16 journalled in slots 17 in the side walls of the sweeper casing. Thus forward movement of the sweeper displaces the spindle 16 relatively to the slots 17 so that each wheel 12 engages and drives an idler wheel 9 engaging a  drive surface 11 on the spindle 6 of the brush 5. The latter is thereby driven and via the belt 8 drives the spindle 6 of the brush 4. On rearward movement of the sweeper the brush 4 is driven in the same direction by direct engagement between the drive wheels 12 and its spindle 6. The brush 5 may be omitted, the belt 8 then passing over a pulley engaged by the idler wheel 9.
Patent GB-808673-A (GB)
Title: Improvements relating to a spring suspension and compensating arrangement for the road wheels of vehicles
IPC: B60G11/58
Filed: 1956-07-17
Abstract: 808,673. Road-vehicle spring suspensions. DAIMLER-BENZ A. G. July 17, 1956 (Aug. 1, 1955], No. 22100/56. Class 108(2) The invention relates to a road-wheel suspension arrangement of the kind in which an axle in rising is operative on devices adapted for producing compression of pneumatic medium, the arrangement being such that the axle of another road wheel is caused to be depressed. According to the invention, at least one of the devices has associated with it a stabilizing spring which at all times directly takes part of the load of the associated axle. In Fig. 3, each road wheel 24a-is connected to a piston 25 which operates in a pneumatic cylinder 28. Air compressed by the piston 25 acts upon a second piston 29, the piston rod- 30 of which is connected by a crank 33 rigid with a torsion rod 31, with the piston 29 of a similar suspension at the other end of the vehicle. Associated with the latter suspension is a stabilizing spring 38 acting between the axle of the road wheel and the vehicle frame. The air space in the cylinder 28 of the former suspension is supplied with compressed air by a conduit 34 controlled by a spring-loaded valve 35. When the air pressure in the cylinder 28 reaches a predetermined value, a port 37 in the wall of the cylinder is uncovered by the piston 25. A similar arrangement of supply conduit 34 and exhaust port 37 may be provided in respect of the cylinder 28<SP>1</SP> at the other end of the vehicle. In a modified construction (Fig. 2), the cylinder 28 is replaced by a bellows device 22 and there is a stabilizing spring 23 disposed within the bellows and provided in respect of the suspensions at both ends of the vehicle. The springs 23 may afford sufficient support in the event of failure of the pneumatic bellows 22. Pressure air in the bellows 22 of the suspension at one end of the vehicle is connected by a conduit 18 to the bellows of the suspension at the other end of the vehicle. In another construction (Fig. 1, not shown), suspension is provided by a coiled spring in respect of each road wheel. The coiled spring bears on an abutment rigid with a piston which operates in a pneumatic cylinder connected by a conduit to the suspension at the other end of the vehicle. One of the two suspensions has a stabilizing spring similar to the spring 38 of Fig. 3, but it is disposed around the pneumatic plunger. In the constructions shown the axles 24 are halfaxles.
Patent GB-405985-A (GB)
Title: An improved power-driven wheel for a vehicle
IPC: B62D61/08
Filed: 1932-08-09
Abstract: 405,985. Motor vehicles. WILLIAMS, A. F., 38, Bishop Street, and WALL, A. W., The Laurels, Coventry Road, Sheldon, both in Birmingham. Aug. 9, 1932, No. 22277. [Classes 79 (iii) and 79 (iv).] To a forwardly projecting arm n of the frame o of a three-wheeled motor vehicle is pivoted, about a substantially vertical swivel or hinge joint m, a power driven steering wheel a comprising a power unit b geared to the wheel hub a<2> and mounted laterally of or within the wheel upon a frame or bracket supported by the hub. The power unit b, which may be a twostroke petrol engine, is secured between a pair of plate-like members c, d having rearwardly projecting hinge lugs e and, preferably, integrally connected so as to form a cowl or hood. The dished or concave wheel a, is mounted by means of ball bearings upon a fixed spindle c<1> projecting from the plate c and is driven from an epicyclic or other gear box f through gears g, h. A fan or blower i on the engine shaft causes a current of air through the cowl or hood over the engine cylinder and crank case. The engine frame c, d is extended upwardly at j to carry a fuel tank k and steering hand wheel l, a plate or strut r connecting the spindle c<1> to the part j. The pivotal connection m may include helical springs or rubber cushions, or the wheel a may be of a resilient character. The Provisional Specification describes also the use of the motor wheel without the pivotal connection for any two, three or four-wheeled vehicle.
Patent GB-437137-A (GB)
Title: Improvements in clips
IPC: B42F1/06
Filed: 1934-07-31
Abstract: 437,137. Clips. CRAWLEY, C. R., 78, Churchfield Road, Acton, London. July 31, 1934, No. 22339. [Class 44] A clip for holding papers, and particularly sheets of newspapers to facilitate handling when reading comprises a pair of jaw members slidably connected and shaped to interact so that relative sliding movement of the members serves to open or close the clip. As shown, jaw members a, b are bent back upon themselves at one end and are nested together. The bent-back end of jaw a may end in a presser foot a<3> bearing on the straight portion and has a part a<2> of reduced width sliding snugly in a shallow cut-away part of the end b<2> of member b. A cross-pin c carried by the end b<2> retains the parts interconnected. The parts a<1>, bl are inclined so that movement of jaw a towards the free end of jaw b causes the jaws to separate. Opposite movement causes the jaws to close, the two jaws being retained in closed position by the end b<2> engaging a depression in the part a<2>. A modification is described in which the pin c is omitted and the end b<2> has inturned lugs engaging under the edges of the part a2.
Patent GB-173210-A (GB)
Title: Improvements in and relating to electrical yarn-gassing apparatus
IPC: D02J3/16
Filed: 1921-08-23
Abstract: 173,210. Siemens - Schuckertwerke Ges. Dec. 18, 1920, [Convention date]. Resistance furnaces. - In an electric heating device for gassing yarns comprising a rod-like heating element 3 surrounded by a jacket 2, the yarn 4 receives most of its heat by reflection from the internal walls of the jacket which is made of a material of high reflecting power and preferably of the greatest possible whiteness. In a modification the jacket is made of a material' of high dispensive reflecting power and the interior of the jacket is circular in cross-section so that the heat the yarn receives by radiation is approximately the same, wherever it is positioned. In another modification the jacket has a mirror-like reflecting surface, and the internal cross-section is elliptical the heating element and the yarn being situated one at each of the foci of the ellipse. In the first two devices the jacket 2 is surrounded by a metal holder 1.
Patent GB-385014-A (GB)
Title: Improvements in or relating to pneumatic separators
IPC: B07B7/04
Filed: 1931-08-07
Abstract: 385,014. Pneumatic separating. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl-Ufer, Berlin. Aug. 7, 1931, No. 22401. Convention date, Aug. 9, 1930. [Class 117.] In pneumatic separators of the kind in which a separating chamber j has an internal baffle plate c against which a current of air carrying particles in suspension is projected from a pipe a so that the heavier particles fall into the chamber j and the lighter particles are carried off by the air through outlet passages d, the entrance to the passages d is controlled by crescent-shaped valves f pivoted about their central axes g. Additional control may be provided by flap valves n hinged to the edges of the baffle plate. In the construction described, the separating chamber j is rectangular in horizontal section at its widest part and has pyramidal top and bottom walls jl, j<2>. The passages d are formed between the top walls and a pyramidal cap m on the baffle plate.
Patent GB-1043330-A (GB)
Title: Data translation apparatus
IPC: G06F3/00
Filed: 1965-05-27
Abstract: 1,043,330. Code converters. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 27, 1965 [June 23, 1964], No. 22546/65. Heading G4H. A code converter includes a store storing a plurality of data characters each represented in a plurality of codes, comparing means for identifying the set of representations associated with a character to be converted, and means for reading out from the identified set the representation of the character in the desired code. In a first embodiment (Figs. 1-4, not shown), a number of time slots in a delay line store each store a character in each of four codes, each such coded representation being preceded by two bits identifying the code. Each such representation and its code identifier are compared in turn, serially by bit, with the representation and identifier of the character to be converted until equality is found. The code identifier of the desired code is then compared, serially by bit, with the identifiers in the rest of the slot until equality is found when the representation following the current identifier in the store is passed to the system output. Here " the rest of the slot " means the preceding or succeeding part of the slot depending on which part the desired code representation is in, as determined by comparing the two identifiers. Two taps, one slot length apart, are provided on the delay line to enable the appropriate slot portion to be obtained. The system is time-division-multiplexed between a number of other units, characters being transmitted parallel by bit. In a second embodiment (Figs. 5-6, not shown), each time slot stores one character in two codes A and B, first in code A, then in code B, and then in code A again. The input character is compared with the store contents until equality is found when the following character in store is passed out. In this way conversion either way between codes A and B is performed. Dummy bits can be inserted in the case of codes of different bit lengths, or each slot can be broken up into 2(2<m-n>) + 1 character sections, where m and n are the numbers of bits in the longer and shorter codes respectively.