baber/WOPTO huggingface dataset:
Patent GB-306324-A (GB)
Title: Improvements in sliver and like cans employed in preparing and spinning textile fibres and for like purposes
IPC: B65H75/16
Filed: 1928-04-18
Abstract: 306,324. Sutcliffe, J. H. A. April 18, 1928. Bottoms.-The metal bottom of a sliver can of vulcanized fibre or like material is formed with a U-section flange into which the end of the tubular body 9 fits, the outer wall of the flange being beaded inwardly at 7 and formed with inward projections 8 to grip the kicking band or binder 10. The inner wall of the flange may be swaged outwardly at 11 to grip the inside of the body. Specification 252,932 is referred to.
Patent GB-241816-A (GB)
Title: Improvements in windows
IPC: E06B3/48
Filed: 1925-05-02
Abstract: 241,816. Baker, W. May 2, 1925. Casements.-A folding casement window consists of two sashes hinged together at 2 and provided at the opposite edges with guide-rollers 17 engaging recessed guides 11 in the top and bottom of the frame. The rollers are carried on an extension 16 to a rightangled plate 15 hinged to a similar plate secured to the sash, and the slot in which the extension 16 slides is closed by an L-shaped plate 19 on the sash. The windows are fastened in the closed position by a handle 8 slidably mounted on the hinge-pin 3 and provided with a catch 9 adapted to engage the plate 10 which covers the guideway. The hinge-pins 3 are removable to allow the sashes to be reversed for cleaning. The meeting edges of the sashes and of the sashes and frame have a tongue-andgroove engagement.
Patent GB-676265-A (GB)
Title: Improvements in or relating to means for securing ceiling boards or the like in place
IPC: E04B9/26
Filed: 1950-05-08
Abstract: 676,265. Walls and ceilings. MERCHANT TRADING CO., Ltd., and CHURCHMAN, H. Jan. 24, 1951 [May 8, 1950], No. 11448/50. Class 20(iv) Spring metal clips 22, which are clasped between the prongs 18, 19, 20 of metal angle strips 17, carried by stationary bars 14 of a ceiling framework have a press-on engagement with heads 26 of stiffener members 30 one, or more, of which is, or are, secured, e.g. by nails, prongs &c. to each ceiling board 12 and provide concealed securing means for the latter. Added support at the edges of the panels 12 is preferably provided by a cornice 32 fixed to a partition 13. This type of securing means is preferably used to close the boundary, or other closure portion, of a ceiling the majority of the boards 11 of which are secured by runners 10 which co-operate with backing bars (not shown). Specifications 675,591 and 676,264 are referred to.
Patent GB-494578-A (GB)
Title: Improvements in sanitary traps
IPC: E03C1/29
Filed: 1937-04-22
Abstract: 494,578. Sanitary traps. ELDER, D. April 22, 1937, No. 11503. [Class 33] A sanitary trap comprises an outer chamber a, Fig. 2, a tubular inlet extending thereinto from an entrance-opening at the top of the chamber so as to form an anti-siphon space between the inlet and the chamber-wall, an outlet b so formed that its top is level with the entrance-opening, and a lip b<1> near the outlet so formed that the distance between the bottom of the lip and the bottom end of the inlet is greater than the height of the lip ; moreover, as in Fig. 1, a baffle d may be provided at right-angles to the inlet. In Fig. 2, the chamber is substantially cylindrical and is bulged at a<1> and the inlet is concentrically arranged within it ; in Fig. 1, the body has flat sides and the tube is formed by a web c<1>. In a further form, the inlet is conical for part of its length, and in another form, the arrangement resembles that shown in Fig. 1, the chamber, however, being perfectly cylindrical. In a still further form, the lower part of the chamber is in the form of a removable hemisphere and the inlet is flared at its lower end. This latter feature may be applied to the other forms which may also be provided with cleaning- plugs.
Patent GB-943604-A (GB)
Title: Dibenzocycloheptane derivatives
IPC: C07D207/06
Filed: 1960-04-01
Abstract: 943,604. Dibenzocycloheptane derivatives. KONINKLIJKE PHARMACEUTISCHE FABRIEKEN V/H BROCADES-STHEEMAN & PHARMACIA N.V. April 1, 1960 [April 1, 1959], No. 11550/60. Heading C2C. The invention comprises compounds of the formula: (wherein R 1  and R 2  are hydrogen or halogen atoms or alkyl groups having not more than 4 carbon atoms, provided that not more than one is a hydrogen atom, and X is -CH 2 -CH 2 - or -CH=CH-) and the preparation of the compound wherein X is an ethylene group by cyclizing compounds of the formula: and reducing the resulting ketones to the corresponding alcohols. The preferred cyclizing agent is polyphosphoric acid, or the cyclization may be effected by converting the acid to the corresponding halide and ring-closing this with a Friedel Crafts catalyst such as anhydrous aluminium chloride. The reduction is preferably effected with sodium amalgum and ethanol. The compounds wherein X is a vinylene group are preferably obtained from the compounds wherein X is an ethylene group by conventional method. In examples (1) 1-p-tolyl-2-(o-carboxyphenyl)- ethane is cyclized to 3-methyl-dibenzo-(a,d)-1 À4- cycloheptadienone-(5) and this is reduced to the 5-ol; (2) 1-(p-chlorophenyl)-2-(o-carboxyphenyl)- ethane is converted to the acid chloride, this is cyclized to 3-chloro-dibenzo-(a,d)-1 À4-cycloheptadienone-(5) and this is reduced to the 5-ol; and (3) the intermediate 5-one of (1) is brominated with N-bromo-succinimide to give a monobromo compound: this is dehydrohalogenated by heating with pyridine to give 3-methyl-dibenzo-(a,c)-1 :3:5- cycloheptatrienone-(5), and this is reduced to the 5-ol. Compounds of the second general formula above are prepared by condensing a phenylacetic acid with a phthalic anhydride with concurrent decarboxylation, saponifying the reaction product, and reducing the resulting enol with hydriodic acid and phosphorus. The dibenzocycloheptane derivatives of the invention, which are stated to have a biocidal activity, may be made up into pharmaceutical preparations with suitable carriers. Specification 943,603 is referred to.
Patent GB-579699-A (GB)
Title: Improvements in the manufacture of high wet-strength paper
IPC: D21H25/06
Filed: 1944-06-16
Abstract: 579,699. Paper containing synthetic resin. ANDERSON, H. E. June 16, 1944, No. 11552. [Class 96] Paper P is made of high wet-strength by impregnating the paper web with a solution of resin-forming constituents, e.g., urea-formaldehyde, or with a pre-condensate thereof and a catalyst, drying at 10, and curing, e.g., in a papermaking machine by passing about jacketed rolls or shells 13, 14 heated by superheated steam, circulating felts 15, 16 being used; the web being rolled up at P'. Specification 553,122 is referred to.
Patent GB-592964-A (GB)
Title: Improvements in electronic relay arrangements
IPC: G05D23/24
Filed: 1945-05-07
Abstract: 592,964. Valve relay circuits. DAVIS, N. R., and SUN-VIC CONTROLS, Ltd. May 7, 1945, Nos. 11592/45 and 10660/46. [Class 40 (v)] A gas discharge tube has an alternating voltage fed to the anode, and the grid is excited by a control voltage which is modified by means dependent on anode current to cause extinction and conduction in response to conduction and extinction, and time delay means extend the period of conduction for a number of cycles depending on a controlling quantity. Fig. 1 shows gas discharge valve 1 with anode and eontrol grid fed with mains voltages in antiphase from transformers 19, 27 respectively, to give normally quiescent conditions. Temperature changes react on resistance thermometer 4 to disturb the balance of a Wheatstone bridge and apply mains voltage to a series tuned circuit 10, 12 producing an output from amplifier 2 in phase quadrature with the component from transformer 27 and with amplitude limited by capacitor 44 and the non-linear resistance 45. The antiphase relationship of anode and grid voltages is thereby disturbed and valve 1 conducts during positive half-cycles of anode voltage to operate slowrelease relay 37 and apply heat to counteract the temperature change. While conducting, valve 1 shunts resistor 39 in the potentiometer 36, 39 across the alternating source and attenuates the positive swings applied to time delay network 33, 41, 42, 43 which acquires a mean negative charge to reduce the grid voltage until conduction ceases after a time interval depending on the temperature change. Symmetrical positive and negative swings are then fed to the delay network, which discharges and allows the cycle of operation to be repeated until the balance of the bridge is restored. Fig. 5 shows a modification in which the voltage developed across resistor 53 in the control circuit may be direct. During the extinction period, the antiphase grid component from winding 54 quickly charges network 51, 52 negative to supplement the negative control voltage across resistor 53. Capacitor 33 charges during positive half-cycles of anode voltage through rectifier 56 until it neutralizes the combined negative voltage on the grid and initiates discharge to isolate capacitor 33 from anode voltage and discharge capacitor 51. Capacitor 33 then discharges through resistor 55 until the voltage across it is just neutralized by the control voltage, when valve 1 is extinguished. The level of control voltage about which the apparatus operates may be adjusted (Fig. 9, not shown) by injecting a voltage in the grid circuit with a variable phase displacement on the voltage developed in winding 54.
Patent GB-313264-A (GB)
Title: Process for increasing the percentage of weight of output in rolled or forged finished metallic goods with preliminary cleaning of the pre-material to be rolled or forged, by turning or the like
Filed: 1928-04-20
Abstract: 313,264. Waldrich Ges., H. A., and Eyermann, P. April 20, 1928. Castings.-To remove defective metal from ingots &c. not having a circular cross section these have the surface removed while cold by a lathe, grinding or milling machine, &c. adapted to produce a non-circular form and in which the work rotates or the tool rotates about the work axis or both. Preferably the machine is arranged to cut away the surface to a constant depth generally but to cut more deeply at the corners. The ingot is then rolled or forged to the desired form.
Patent GB-995037-A (GB)
Title: Production of phenazasilines
IPC: C07F7/08
Filed: 1962-03-27
Abstract: Diphenylamine derivatives of the general formula <FORM:0995037/C2/1> where R1 is a C1- 5 alkyl radical are prepared by brominating diphenylamine to give 2,21,4,41-tetrabromodiphenylamine which is then alkylated to the N(C1- 5 alkyl) derivative and is then reacted with methyl lithium.  Specific R1 groups are methyl, ethyl butyl and propyl-4,41 - dibromo - 2,21 - dilithio - N - ethyl. diphenylamine is prepared in Example 1. These compounds are used to obtain phenazasilines (see Division C3).ALSO:Phenazasilines of the general formula <FORM:0995037/C3/1> where R1 is a C1- 5 alkyl radical and each of R11 and R* is an alkyl or phenyl radical are prepared by reacting 4,41-dibromo-2,21-dilithio-N-(C1- 5 -alkyl) diphenylamine with silicon tetrachloride, an alkyl trichlorosilane or an aryl trichlorosilane to produce <FORM:0995037/C3/2> where X is an aryl or alkyl radical or a chlorine atom, then contacting with the equivalent amount of alkyl lithium, aryl lithium, alkyl sodium or aryl sodium and then hydrogenating. The R* group is preferably phenyl.  The hydrogenation step is carried out in the presence of a wormed carbon catalyst in the presence of an acid acceptor.  The examples describe the preparation of (2) 2,8 - dibromo - 5 - ethyl - 10 - phenyl - 10 - chlorophenazasiline; (3) 2,8 - dibromo - 5 - ethyl - 10,10 - diphenylphenazasiline; (4) and (5) 5-ethyl-10,10-diphenylphenazasiline.
Patent GB-543733-A (GB)
Title: Improvements in or relating to couplings for rods, tubes, shafts or the like
IPC: F16L21/035
Filed: 1941-09-13
Abstract: 543,733. Rod and tube couplings. M'CAW, S. E. (Larymore, W., and Kelly, R. D.). Sept. 13, 1941, No. 11746. [Class 99 (i)] [Also in Groups XXIII and XXIV] A coupling for tubes, rods, and shafts, or for connecting drill bits or sockets to drill rods, comprises a spigot 10 formed with a groove in which is placed a rubber or like ring 12 which is compressed within the tapered end 15 of a socket 13 the insertion being facilitated by the use of lubricant. The socket may also be provided with a groove to receive the ring. The tapered part of the socket may be removable from the main part. For coupling pipes or tubes, the two ends to be connected are fitted with the rubber rings and inserted into the opposite and tapered ends of a sleeve, the ends of the pipes abutting within the sleeve.
Patent GB-118314-A (GB)
Title: An Improvement on the Butt Hinge used in Hanging Doors and the like.
Inventor: HUNT HERBERT
IPC: E05D7/04
Filed: 1917-08-20
Abstract: 118,314. Hunt, H. Aug. 20, 1917. Hinges. - Butt hinges are made with oblong screwÀholes at right-angles to the hinge pin as shown, so that the door may be truly hung before permanently fixing by screws put into the ordinary holes.
Patent GB-128639-A (GB)
Title: Improvements in or relating to Automobile Tractors.
IPC: B60P3/40
Filed: 1917-08-20
Abstract: 128,639. Compagnie des Forges et Acieries de la Marine et d'Homecourt. Aug. 30, 1916, [Convention date]. Field carriages.-Consists in uniting tractors c for transporting ordnance by a rigid structure a provided at its ends with ball-andsocket joints, or equivalent Cardan or other joints, to enable each vehicle to take up positions varying as regards height and direction. The structure a, Fig. 1, may be provided with mechanism, operated by hand, or by the engine, to enable the load to be raised &c. When the vehicles united together and carrying a gun constitute one piece of ordnance, the supporting beam or structure a, Fig. 4, supports the trunnions of the gun and forms a beam gun-carriage, upon which all the accessories for operating and firing are arranged. The front ball member k is arranged as shown in Fig. 10, and the rear member n is fixed to the platform of the vehicle, the socket portion being in two parts. The centre of gravity of the gun and carriage is brought below the line joining the centres of the ball joints k, n. A train of three or more tractors may be similarly connected, and the connecting beam may be a rigid structure of any shape.
Patent GB-1441740-A (GB)
Title: Moulding of progressive ophthalmic lenses of organic glass
IPC: B29C39/02
Filed: 1975-03-21
Abstract: 1441740 Dies for organic lens making ESSILOR INTERNATIONAL CIE GENERALE D'OPTIQUE 21 March 1975 [29 March 1974] 11946/75 Heading C1M [Also in Division B5] A glass die with an apherical concave face, suitable for moulding a progressive, organic glass ophthalmic lens (see Division B5), is formed from a blank with a polished spherical concave face and an at least rough ground convex face which is aspherical in an homologous fashion to the desired concave face of the die, by heating the blank on a shaping block with a spherical support surface so that it deforms without flowing to produce a spherical convex face and a polished aspherical concave face. The shaping block may be made of carborundum and the dies may be provided with flat or spherical joint surfaces before or after the thermal subsidence treatment. The original blank may be 3-15 mm. thick and may be reduced to 1-10 mm. thick after heating on the block.
Patent GB-1019920-A (GB)
Title: 7-hydroxy-xanthines
Inventor: GOLDNER HERBERT
IPC: C07D473/08
Filed: 1963-03-26
Abstract: The invention comprises compounds of the formula <FORM:1019920/C2/1> where R1 and R2, the same or different, represent straight-chain or branched alkyl radicals and R3 represents a hydrogen atom or a straight-chain or branched alkyl radical or an aralkyl radical, and the preparation thereof by the oxidation of a compound of the formula <FORM:1019920/C2/2> with nitrous acid or an ester thereof. 7 - Unsubstituted - xanthines are formed as by-products in the above process. Compounds of the Formula II may be prepared by nitrosation of compounds of the formula <FORM:1019920/C2/3> with excess nitrosating agent. 1,3 - Dimethyl - uric acid is formed by the action of heat on 7-hydroxy theophyllin.
Patent GB-436889-A (GB)
Title: Improvements in or relating to heating apparatus suitable for use in shoemaking
IPC: A43D95/10
Filed: 1934-04-21
Abstract: 436,889. Appliances for delivering hot air. BRITISH UNITED SHOE MACHINERY CO., Ltd., and BRAY, W. N., Union Works, Belgrave Road, Leicester. April 21, 1934, Nos. 12036 and 34289. [Class 126] An appliance for delivering a blast of hot air, particularly for use in shoemaking, comprises a casing 17 containing a combustion chamber to which gas and air are supplied, together with a mixing chamber to which the combustion products pass and to which air is separately supplied from a space 35 between it and the outer casing, the mixed combustion products and air being delivered as a hot blast. In the form shown, the combustion and mixing chambers are formed respectively within cylinders 21, 27 of refractory material having perforated walls through which air passes from jacket spaces 33, 35 formed between them and the outer casing, valves 47, 49 controlling separately the air supplies to these spaces. Gas, under control of a pin valve 9, is delivered into the end of the combustion chamber. A grid 25 of refractory material separates the combustion and mixing chambers, and may either be perforated as shown in Fig. 1, or of the branched form shown in Fig. 2 which is less liable to fracture under stress produced by heating and cooling. A hand grip 1 is provided. Specifications 341,668 and 373,674 are referred to.
Patent GB-680433-A (GB)
Title: Improvements in or relating to trolley wire systems
IPC: B60M1/02
Filed: 1949-05-05
Abstract: 680,433. Protective cut-out systems. GENERAL ELECTRIC CO., Ltd., EARP, H. J. C. and FERRIS, E. C. May 5, 1950 [May 5,1949], No, 12064/49. Class 38 (v) A trolley-wire system has voltage-responsive means connected with a point in the system remote from the supply point so that should a wire break, the voltageresponsive means is effective to cause the de-energising of the system. In the Fig. a no-volt relay 32 has it's operating coil 33 connected through a currentlimiting resistance 36, emergency stop button 37 and fuses 34, 35 to the ends 12, 13 of the trolley wires 10, 11 remote from the supply ends 14,15. The contacts 31 to the no-volt relay are connected in the "holding" circuit of contactors 22, 23 controlling the supply to the wires 10, 11, this circuit also including the holding contacts 26 of the contactor 22. The wires 10, 11 are initially energised by depressing a "start" button 28, which completes a circuit from supply terminal 21 through a fuse 27, the operating coils of the contactors 22, 23, the contacts of button 28, the contacts 25 of an overload relay 24 and a fuse 29 to the supply terminal 20. The contactors 22, 23 close their contacts and the no-volt relay closes its contacts so that when the push-button 28 is released, the circuit for the contactor operating coils is maintained through the contacts 31 and 26. If a wire 10 or 11 should break, or if a stop button 37 is,operated, the no-volt relay 32 is de-energised and opens the holding circuit for the contactor operating coils.
Patent GB-1178602-A (GB)
Title: Improvements in or relating to Lasers
Inventor: CHELNY ALEXANDR ALEXANDROVICH
IPC: H01S3/082
Filed: 1967-03-15
Abstract: 1,178,602. Lasers. A. A. CHELNY, L. P. LISOVSKY, V. A. EVSIN, N. V. SHKUNOV, and E. I. KOSHELEV. 15 March, 1967, No. 12154/67. Heading H1C. In a laser the laser optical cavity mirrors 2, 3 are each in the form of a transparent planeparallel plate 2a, 3a having a multilayer dielectric reflecting coating 2b, 3b applied thereto so that heat from the laser output beam is absorbed by the plates 2a, 3a before reaching and damaging the dielectric coatings 2b, 3b. In the embodiment shown a ruby rod 1 is pumped by flashlamp 4 and an iris diaphragm is provided in the optical cavity for adjusting the emissive power of the laser. To protect the coatings 2b, 3b from external effects glass shields 6, 7 hermetically seal them between plates 2a, 3a and shields. The mirrors 2, 3 are free to rotate.
Patent GB-773149-A (GB)
Title: Jet propulsion units
Inventor: MORLEY ARNOLD WILLIAM
IPC: F02K1/16
Filed: 1954-04-27
Abstract: 773,149. Jet propulsion plant; gas turbine plant. NAPIER & SON, Ltd., D. April 18, 1955 [April 27, 1954], No. 12171/54. Class 110 (3). [Also in Groups XXI and XXIX] In a jet-propulsion unit for an aircraft or missile incorporating an axial flow, contra-rotating turbine-compressor aggregate wherein each rotor carries a single ring of compressor blades and a single ring of turbine blades and the compressor provides for two stage supersonic compression the unit is so designed as to obtain under normal operating conditions substantially the same predetermined Mach number condition as between the gas stream passing through the unit and the various parts on which it impinges throughout the compressor and turbine while means are provided for controlling the fuel supply to the combustion means in such a manner as to maintain said predetermined Mach number condition constant, when normal operating conditions have been established. The turbine rotors L<SP>2</SP>, L<SP>3</SP> respectively drive compressor blade rings J<SP>1</SP>, J through shafts H<SP>1</SP>, E, bearings D<SP>2</SP>, H, H3 and M<SP>3</SP> being arranged as shown and the shaft E also driving a fuel pump F. The unit is provided with a normal nozzle M<SP>4</SP> and a detachable extension nozzle O, O<SP>1</SP> which is secured by a series of explosive bolts 02 and provided with fuel injection nozzles O<SP>3</SP>. A spring-loaded plunger is slidably mounted in the tail cone and held in the forward position by the nozzle O, O<SP>1</SP> when it is attached. The fuel supply and control apparatus for the unit comprises a tank P, the pump F and a diaphragm-controlled valve Q<SP>1</SP>, the setting of which depends upon a servo-mechanism S, S<SP>1</SP> responsive to the pressure in the inlet of the compressor and the speed of the rotor driving an electric generator R. Fuel is fed to the nozzles O<SP>3</SP> through a passage T, a metering device T<SP>1</SP> and a burster disc T<SP>2</SP>, the device T<SP>1</SP> being controlled by a servo-device T<SP>3</SP> which is also controlled by the member S<SP>1</SP>. Fuel from the device Q<SP>1</SP> passes through a burster disc K<SP>4</SP> and cools the generator R prior to entering the nozzles K<SP>2</SP>. Fuel from the passage O<SP>5</SP> is fed through a servovalve U<SP>1</SP>, controlled by a capsule U<SP>2</SP> subject to atmospheric pressure, to a servo-device U<SP>3</SP> which controls the flap B and the detonating circuit of the nozzle O, O<SP>1</SP>. A servo-device W<SP>1</SP> is also provided for the control fins of the aircraft or missile.
Patent GB-539348-A (GB)
Title: A new or improved device for use in the game of bowls
IPC: A63B47/02
Filed: 1940-07-26
Abstract: 539,348. Collecting and moving bowls in the game of bowls. ATCHERLEY, W. C. July 26, 1940, Nos. 12174 and 13630. [Class 132 (ii)] A device for collecting and moving bowls after each "end" in the game of bowls comprises an open-fronted wheeled frame 10, 11 provided with a handle 25. The device is wheeled up behind the bowls and swung round to collect them within and in front of the device so that they can be rolled along together to any desired point on the green. Rubber-covered rollers 17 engage the bowls. A detachable spring-pressed bar 27 extends across the front of the frame and is pushed up by the entering bowls but prevents the bowls from running out again. An upwardly extending handle 14 is provided to facilitate lifting the device off the green. The frame may be folded about the middle 12 for transport and the handle 25 may be detached. The handle 25 and bar 27 may be telescopic and may be graduated for use, when detached, as measuring sticks.