baber/WOPTO huggingface dataset:
Patent GB-1486689-A (GB)
Title: Variable throat induction nozzle
IPC: B05B7/04
Filed: 1975-07-15
Abstract: 1486689 Ejectors SRC LABORATORIES Inc 15 July 1975 [1 Aug 1974] 29593/75 Heading F1E In an ejector the throat 18 is formed by a resilient ring 17 which is deformable to vary the cross-sectional area of the throat. In the embodiment shown the ring is disposed between a fixed inlet member 15 and a movable outlet member 16 which has a surface 21 exposed to the ambient pressure and a surface 22 exposed to the induced fluid-pressure whereby the member 16 may compress the ring 18 to reduce the area as the differential pressure increases. The ring may be hollow. In other embodiments a hollow ring is disposed between fixed inlet and outlet members and the interior may be open to atmosphere, connected to a source of pressure fluid or be sealed. The ring may be of elliptical cross-section and the inner wall thickness may be reduced Fig. 6 (not shown).
Patent GB-980853-A (GB)
Title: Diazepine and thiazepine compounds
IPC: C07D417/04
Filed: 1961-08-16
Abstract: The invention comprises compounds of the general formula <FORM:0980853/C2/1> and their acid addition salts and guaternary ammonium derivatives (wherein Z represents S, SO or -(NR1)-, whereR1 is H or a protecting group (e.g. an acyl orbenzyl group), or a C1 to C5 alkyl or C2 to C5 alkenyl group; R2 and R3 may be the same or different and represent hydrogen atoms or alkyl, alkenyl, amino, mono- or dialkylamino or mono- or di-alkylaminoalkyl groups, or monocyclic aryl or aralkyl groups, which aryl and aralkyl groups may be substituted by halogen atoms or trifluoromethyl, hydroxy, alkyl, or C1 to C3 alkoxy or alkylmercapto groups, or R2\t and R3 together with the nitrogen atom may form a cycloalkylamino group which may contain further heteroatoms, which heteroatoms, if nitrogen, may carry hydrogen atoms or alkyl, hydroxyalkyl or alkoxyalkyl groups; and R4 and R5 represent hydrogen or halogen atoms or trifluoromethyl, hydroxy or C1 to C3 alkyl, alkoxy or alkylmercapto groups), and the preparation thereof by reacting a compound of formula <FORM:0980853/C2/2> (wherein R1 may not be H) with a dehydrating agent, or by reacting a compound of formula <FORM:0980853/C2/3> (wherein A represents a halogen atom or a C1 to C3 alkoxy or alkylthio group) with a compound of formula <FORM:0980853/C2/4> and, if desired, converting the products into acid addition salts or quaternary ammonium compounds. Compounds in which Z is SO can also be obtained by oxidizing the thiazepine compounds (Z=S). The products are useful as analgesics, chemotherapeutic agents, antihistaminics, or antiphlogistic or antioedemic agents.  Ureas of the second general formula above are obtained by reacting suitable o-amino-diphenylamines or o-amino-diphenyl sulphides with potassium cyanate, or with phosgene or chlorocarbamate followed by reaction with an amine of formula R2-NH-R3.  Dibenzodiazepines and dibenzothiazepines of the third general formula above are obtained by thermal cyclization of suitable o-amino-diphenylamine - o1 - carboxylic acids or o - amino-o1-carboxydipheny sulphides to form the lactam, and then reacting the lactam with phosphorus pentasulphide and then with alkali and dialkyl sulphate, or reacting the lactam with phosphorus oxychloride and phosphorus pentachloride.
Patent GB-939645-A (GB)
Title: Air diffuser
IPC: F24F13/16
Filed: 1962-08-02
Abstract: 939,645. Ventilators. ALLIED THERMAL CORPORATION. Aug. 2, 1962 [Aug. 9, 1961], No. 29703/62. Class 137. In an air diffuser for air distributing and ventilating systems comprising a deflector subassembly 30 coaxially mounted within and spaced apart from a diffuser housing 14 and defining an air discharge opening therewith, means are provided whereby the axial location of the sub-assembly in the housing may be adjusted selectively to control the path of air being discharged from the diffuser. The diffuser is particularly suitable for flush mounting in a ceiling panel. The deflector sub-assembly 30 has three radially extending hanger arms 32 to which an outer deflector 34 and inner deflector 40 are secured. The outer end of each hanger arm 32 is provided with an axially extending sawtooth-shaped edge having tapered portions 50 and abutment portions 51. Attached to the diffuser housing 14 are three hook assemblies 49 which co-operate with the hanger arms 32 to locate the deflector sub-assembly within the housing 14. Each of these hook assemblies comprises an inwardly facing hook member 54 and a spring finger 52 conforming to the inner surface of the hook member. The outer end of each hanger arm 32 is located in a slot 56 in the hook member 54, rotational movement of the deflectors thus being prevented, the hanger arm being located axially by abutment of the spring finger 52 against one of the abutment portions 51 thereon and radially by the pressure of the spring fingers on the edge portions 50. Adjustment of the deflector sub-assembly towards an inlet opening 12 is achieved by pushing the sub-assembly axially until the ends of the spring finger slide along the tapered portions 50 and re-engage a further abutment 51. Adjustment of the deflector sub-assembly away from the inlet opening 12 is achieved by first pushing the sub-assembly towards the inlet until the hanger arms clear the hooks 49 then rotating the sub-assembly, withdrawing it and re-engaging the hanger arms in the hooks 49 and pushing it in to the desired position. Due to upwardly and outward turned flanges situated on the lower ends of the deflectors and a cylindrical portion 20 of the diffuser housing 14 the direction of air issuing from the assembly is dependent on the positioning of the deflectors within the housing. Movement of the subassembly towards the inlet 12 causes air issuing from between the housing 14 and outer deflector 34 to become directed more and more axially this consequentially influencing air issuing from between the inner and outer deflectors.
Patent GB-427798-A (GB)
Title: Improvements in or relating to the manufacture of hydrocarbon gases
IPC: C07C2/86
Filed: 1933-10-26
Abstract: Acetylene, ethylene, and other unsaturated hydrocarbons are produced by reacting carbon with methane and (or) hydrogen at above about 1000 DEG  C., heat being supplied by the combustion of a fluid within the reaction zone during the reaction.  The carbon may be taken in the form of porous charcoal, lamp black, soot, or powdered coal or coke. The reaction pressure may be atmospheric or below, and other gases, such as nitrogen and oxides of carbon, may be present.  The heat supplied by the combustion of a fluid within the reaction zone may be supplemented by other heating means, e.g. by an electric arc or an electric furnace, the electrodes of which may be of graphitic carbon. The reaction may be effected by blowing powdered carbon with a stream of methane and (or) hydrogen or inert gas through a flame produced by burning methane and (or) hydrogen in air or other oxygenated gas. Alternatively, charcoal may be directly heated by a methane-air or other flame while methane and (or) hydrogen is blown through the charcoal; this method may be effected in a series of vessels arranged in parallel and operated intermittently.  The gases may be preheated before the reaction, e.g. by exchange of heat with the products. When gases containing large proportions of oxides of carbon are available, a preliminary conversion of the carbon oxides into methane may be effected in known manner.  The products may be freed from solid particles and water vapour by electrical precipitation and condensation, and the acetylene in the residual gases may be converted into acetaldehyde or otherwise worked up.
Patent GB-783856-A (GB)
Title: Improvements in or relating to subscription television systems
IPC: H04N7/16
Filed: 1953-10-06
Abstract: 783,856. Television. SKIATRON ELECTRONICS & TELEVISION CORPORATION. Oct. 6, 1953 [Oct. 23, 1952], No. 29720/56. Divided out of 783,854. Drawings to Specification. Class 40 (3). The description is substantially identical with that appearing in Specification 783,854 with reference to Figs. 1-12 and 15-19, but the claims relate to a scrambled television system and a receiver for use in such a system in which decoding is effected by a circuit, part of which is in the form of an element carried by replaceable member and which is at least partially obscured from visual observation. Specification 783,855 is referred to.
Patent GB-1291040-A (GB)
Title: Counter system for orbital packer
IPC: B65H33/10
Filed: 1971-06-24
Abstract: 1291040 Delivering sheets; folding paper PAPER CONVERTING MACHINE CO Inc 24 June 1971 [17 Aug 1970] 29723/71 Heading B8R In a method of and apparatus for stacking napkins in counted batches in which the napkins are held on a vacuum roller 17 and removed therefrom to a magazine 23 by stacker fingers 20 which move in an orbital path 21 in and out of grooves in the roller, means are provided for tilting the fingers at a particular napkin count so that the count napkin is removed at a position upstream or downstream of the normal position such that, when fed to the stack, it is displaced from the other sheets and defines a batch. A web 11 may be folded longitudinally between rollers 12, 13, cut transversely into sheets between the cylinders 15, 16 of a rotary cutter, each sheet being held on the roller 15 by vacuum until its middle portion is engaged by the surface of the folder roller 17 which holds the middle portion by vacuum allowing the remainder of the sheet to fold transversely into a napkin, the roller 17 rotating so as to move the napkins along a curved feed path until they are removed by the fingers 20. The fingers, oscillated by an eccentric (25), Fig. 2 (not shown), on a shaft 18, are restricted to their orbital path 21 by a spring 43 via linkage 37, 40 but when a certain number of delivered napkins have been counted by a mechanical or electrical counter (not shown), a pneumatic motor 60 pivots link 40 against the action of spring 43 allowing a cam follower 55 to engage and follow a cam (56), Fig. 5 (not shown), on shaft 18, thereby altering the motion of the fingers 20 such that they engage a napkin on roller 17 upstream of the usual position and transport it to an elevated position in the stack.
Patent GB-1106208-A (GB)
Title: Method of manufacturing tape having semi-conducting properties
Inventor: ASLANOVA MARGARITA SEMENOVNA
IPC: H01B3/00
Filed: 1965-07-13
Abstract: A glass tape having semi-conducting properties is made from glass fibres containing SiO2, Al2O3 and 15 to 40 per cent of cupric oxide, by a nozzle spinning technique with additional cooling of the sub-nozzle zone, the tape being heated to a temperature of from 100 DEG  to 800 DEG  C. in a reducing atmosphere. The glass for the fibres has a composition within the range SiO2 40-60%, Al2O3 5-16%, CaO 0-16%, MgO 0-10%, Na2O 0-2%, B2O3 0-10%, CuO 15-40% and from 0.1 to 5% of one or more of Li2O, TiO2, Ag2O, ZnO, BaO, CdO, ZrO2 and Fe2O3.
Patent GB-424407-A (GB)
Title: Improvements in electrical condensers
IPC: H01G4/38
Filed: 1934-10-17
Abstract: 424,407. Condensers. LINGARD, S., 103, Berkeley Court, Marylebone Road, London. Oct. 17, 1934, No. 29770. [Class 38 (ii)] A number of cylindrical condenser coils a assembled in a container d are separated by insulating spacers b adapted to the curved surfaces of the coils. The spacers may be of porous material impregnated with a liquid, and may be held together by bolts c.
Patent GB-996458-A (GB)
Title: Improvements in the hygrometric measurement of the uranium hexafluoride content of gases
Inventor: SAHA BIJAY
IPC: G01N25/02
Filed: 1962-08-02
Abstract: 996, 458. Hygrometric determination of the vapour content of gases. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 2, 1962 [Aug. 3, 1961], No. 29775/62. Headings G1B and G1S. A process for measuring the UF 6  content of a permanent gas by means of a dew-point hygrometer 1 comprises passivating the apparatus by the introduction of C1F 3  or F 2  thereinto and subsequently analysing the UF 6  containing gas in the presence of C1F 3  or F 2 . The measuring head 10 of the hygrometer 1 is totally enclosed and has an inlet 8 and outlet 9 for the gas to be analysed. The head 10 has a gold mirror 2, illuminated by a lamp 11, and a photo-electric cell 13. The mirror is coded by a gas entering at 3 and passing through an electromagnetically operated valve 4, needle valve 5 and heat exchanger 6, the cooling gas leaving at 7. A thermocouple 12 is located behind the mirror 2 and the temperature of the mirror is noted by a recorder 16. The output of the cell 13 is connected to an electronically controlled relay 14 fed from a mains supply 15, the relay 14 receiving signals from the photo-electric cell 13 and controlling the valve 4. The passivation of the apparatus allows formation of a protective fluoride layer and prevents decomposition of the UF 6 , and the introduction of the C1F 3  or F 2 , preferably to give a content two to ten times that of UF 6  in the gas to be analysed, allows continuous regeneration of any UF 6  which may decompose in the head 10 and allows the dew-point measurements to be made continuously on a stream of gas e.g. from stuffing boxes or traps in a uranium enrichment plant. The UF 6  content of the gas can be found from the saturated vapour pressure of UF 6  at the dew-point using an empirical formula.
Patent GB-327984-A (GB)
Title: A method and apparatus for supplying liquids in predetermined quantities
IPC: G01F11/28
Filed: 1928-10-15
Abstract: 327,984. Mauduit, G. de. Oct. 15, 1928. No Patent granted (Sealing fee not paid). Fixed multiple-chamber apparatus, valve systems for.- Ingredients for cocktails are drawn by a pump 2 from main containers 8, 9 into measuring vessels 4, 5, are retained to a level determined by the adjustable supply pipes 12<1>, and are delivered by way of a plug valve 20 to a common orifice 16. An opening 40 uncovered as the pump piston reaches the end of its stroke causes excess liquid to be returned rapidly to the main containers. The pumpactuating rod 32 runs on pinguides 33 and is connected to the piston-rod 2<1> through a frame consisting of cross-rods 35, 36 and spring-encircled longitudinal rods 37. A bracket 43 integral with the rods 36 carries a spring pawl 44 which, as soon as the rod 32 commences its return stroke, moves levers and links 46, 48, 50 to throw over the valve 20 to its discharging position. A channel 23 conducts the measured liquids to a vessel 24, preferably icejacketed and containing an agitator 25. Both members 23, 24 are readily removable for cleaning, the latter being held between a bracket 79 and a spring-pressed support 84 carried on a pivoted rod 82. The agitator may be set in motion by an electric motor 28, the circuit of which is closed by the movement of the rod 32. This, by removing a stop 64, allows the vessel 60 to be moved by a spring until the enclosed mercury 68 bridges contacts 67 in the motor circuit. A dash-pot 70 restrains the return movement of the rod 32. A rack 77 and pawl 78 prevent the reversal of the bar 32 except at the end of its stroke. In a modified arrangement for controlling the motor 28 a projection on the bar 32 closes the circuit by bringing an armature into contact with the core of a solenoid. The circuit is automatically broken by means of a finger 95 separating the contacts 94, 94<1>. The finger is secured to a spring-pressed carriage having a projection 97 in engagement with a worm driven by the motor. As the circuit is broken the carriage with the projection 97 and finger 95 are returned to their initial positions by means of a guide 97". The outlets from the measuring chambers may be controlled by lift-valves, the stems of which form the cores of solenoids energized at the required instant with reference to the movement of the pump bar 32. Coin-freed mechanism may be fitted controlling the pump or any other element of the mechanism. Specification 323,006, [Class 27, Coin-freed apparatus &c.], is referred to.
Patent GB-504800-A (GB)
Title: Improvements in or relating to laminated magnetic elements
IPC: H02K1/14
Filed: 1937-11-01
Abstract: 504,800. Dynamo - electric machines. RAWLINGS, G. W. Nov. 1, 1937, No. 29780. [Class 35] [Also in Group XXII] A laminated magnetic element for an imbricated type armature or field core or other magnetic circuit comprises a number of laminations nested one within another to form a yoke with polepieces so constructed that in each polepiece the ends of the laminations progressively overlap and collectively form a tegulated pole surface. Fig. 1 shows one pole element of an armature core comprising five laminations a ... e each having a central hole f for the passage of the spindle. The element is manufactured preferably by assembling the laminations on a locating pin at the end of a conical plug and forcing the plug first into a taper forming die and then through a ring shearing die. The cylindrical pole-surface is finished by grinding. The pole faces may be further subdivided by a longitudinal slot. In Fig. 5, the magnetic circuit is completed independently of the spindle by inwardly turned flanges i<1>, j<1> which may abut as shown at k or which may be interleaved as shown at k<1>. In the case of the magneto shown in Fig. 7, the armature and the magnet are of the imbricated type, the permanent magnet o being magnetized axially and embraced by laminated pole elements n<1>, n<2>. The polepieces may be parallel-sided or tapered. Specification 481,585 is referred to.
Patent GB-239750-A (GB)
Title: Improvements in internal combustion turbines
IPC: F02C5/12
Filed: 1924-12-11
Abstract: 239,750. Champeaux de la Boulaye, D. M. G. de. Dec. 11, 1924. Working-fluid supply.-Combustion chambers c in a stationary ignition disc C<1>, C<2> communicate with each other by nozzles c<4>, Fig. 8, through which an explosive wave is propagated, are fed with explosive mixture through nozzles c<5>, and are formed with nozzles c<3>, Fig. 1, discharging on to the blades of a turbine indicated at D. The turbine may be arranged for axial, or radially-inward or outward flow. A shaft a<1>, Figs. 1 and 2, revolubly mounted within a casing a<4>, carries a distributing cone B' and is connected to a rod b<4> carrying the turbine element B<2>. The shaft a<1> carries a tube a<2> and sixteen axially-arranged pipes a which rotate past an adjustable nozzle a', which injects fuel into each pipe a in turn. The pipes a are formed of material which is a poor conductor of heat and are asbestos-lagged at a<11>. The pipes a are connected to tubes b, Fig. 5, arranged on the distributor B<1> in such a way that the point of delivery of each pipe is in front of the delivery of the pipe the inlet of which precedes it, so as to prevent one chamber c being charged twice in succession. Ignition is started and maintained by two diametrically-opposite plugs c<6> which continuously emit sparks. As there are only eight chambers c to sixteen supply pipes, the wave of combustion travels twice as quickly as the turbine rotor. Compressed air is continuously supplied to the combustion chambers through the pipe a<2>, the hollow rod b<4>, and the space b<2>. To prevent back-firing, the tubes b may be lengthened or increased in cross-section at a point as shown in Fig. 5a. A branch a<12> from the pipe a<6>, Fig. 2, communicates with the fuel reservoir, to ensure that the fuel pressure is slightly greater than that of the air at the nozzlea<1>. The members B<1>, B<2> are spaced by blades engaging radial grooves therein. The sparking- plugs are so arranged that ignition only takes place on the completion of scavenging. When mounted on a vehicle, compressed air is supplied by the movement thereof, a starting compressor being provided.
Patent GB-285992-A (GB)
Title: Improvements in and connected with governor-controlled shaft and like couplings
IPC: F16D3/10
Filed: 1926-11-25
Abstract: 285,992. North, R. B., and Allen, A. Massey-. Nov. 25, 1926. Shaft couplings; securing toothed wheels on shafts; universal joints. - In centrifugallyadjusted shaft and like couplings for magnetotiming &c., the coupled parts are connected by pivoted arms jointed to each other at their adjacent ends, the centrifugal movement being resisted by a blade spring or springs disposed across the joint, so that, on breakage of the springs, the coupling assumes a fully-advanced position. The arms e, e', and k, k<1>, pivoted respectively to the wall b of a driving-drum a and to a disc f screwed or keyed on the driven shaft g, may be built up of stamped laminations spaced by thin paper packing, alternate stamping being cut away at m to form, with pins l, l<1>, hinge joints with the adjacent arms. The blade springs p<1>, preferably composed of at least two superposed blades to increase the damping-effect, are slipped into slots p and retained therein by the parts b, f. The arms are provided with fibre bushes at their pivots d, d<1>, j, j<1>, and may be loaded at the joints l, l<1>. The arms may be solid and provided with fibre bushes at the pins l, P also. The drum a, revoluble on the boss f<1> of the disc f may be toothed to mesh with a driving- pinion or may be adjustably coupled to a driving- shaft t, as by a rubber, vulcanized fibre, or other resilient conical toothed ring u, interposed between male and female cones v, s having teeth differing in number by one.
Patent GB-205705-A (GB)
Title: An improved self-acting non-slip rope or cable clip for haulage and like purposes
IPC: B66C1/00
Filed: 1922-11-01
Abstract: 205,705. Cochrane, D. G., and Hindmarsh, J. Nov. 1, 1922. Rope grips.-A self-acting two-way rope grip comprises two L-shaped mem. bers a, b pivoted together at c. When the rope is guided into the entrance between the jaws a<1>, b<2> it contacts with a depending tongue g of the member b and so rotates the upper jaw to grip the rope in the recesses d, f. The recess d does not extend the full width of the jaw a<1>, while the upper jaw has a convex under face having a flattened centre portion. The tongue g may be grooved to engage one strand of the rope. An eye-bolt at the upper end of the member b provides for the attachment of the grip to the wagon to be hauled. In a modified arrangement for overhead haulage, the clip is mounted on a horizontal base plate with the jaws vertical.
Patent GB-601555-A (GB)
Title: Improvements in or relating to pneumatic colliery picks
IPC: B25D17/14
Filed: 1945-11-09
Abstract: 601,555. Percussive tools. HOLMAN BROS., Ltd., and ARTHUR, J. Nov. 9, 1945, No. 29949. [Class 124] In a pneumatically-operated colliery pick, the throttle valve 15 controlling the supply of compressed air to the pick is coupled to a spring-loaded valve 19 controlling the supply of liquid to a spraying device 6, 7. When the valve 15 is opened by a control button 16, it moves a spring-loaded rod 17 attached to a diaphragm 18 separating the two valves, and liquid from an inlet fitting 14 passes through passages 12, 9, 8 provided with sealing devices 10, 11, to the annular nozzle 6 which surrounds the steel 4 and is provided with a number of differently inclined spraying holes 7.