baber/WOPTO huggingface dataset:
Patent GB-551890-A (GB)
Title: Improvements in frequency modulated oscillation generators, stabilised as to mean frequency
IPC: H03C3/09
Filed: 1941-09-08
Abstract: 551,890. Automatic ,control systems for high frequency oscillation generators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 8, 1941. No: 11475. Convention date, Sept. 6, 1940. [Class 38;(iv)] [Also in Groups XXXVI and XL] Oscillation frequency:-A frequency modulated oscillator is stabilized by a piezo-electric crystal arranged to detect variations in mean frequency and to develop a correcting, voltage which is applied to the oscillator. An oscillation circuit 30 and a reactance valve 10 are connected to a master valve oscillator 20. A frequency modulating transformer 18 is connected to the electrode 14 of the valve 10. An oscillation circuit 64 is fed with the modulated energy and connected to electrodes 50, 52 of a four-electrode holder of a piezo-electric crystal, electrodes 56, 58 of which are respectively over- and under neutralized to obtain output curves 70, 72 as shown in Fig. 3a. Chokes 66, 68 and diode rectifiers 59, 60 in series with resistances 40, 42 are connected as shown and a time constant filter allows only the slow variations of frequency to pass to lead 17 voltages whereby the potential of electrode--14 is varied to correct them. A modified arrangement is described wherein an inductive reactance valve and a three electrode crystal holder are used: In this modification amplifying valves are connected between the output electrodes and the rectifiers. Specifications 504,766 and 526,259 are referred to.
Patent GB-987847-A (GB)
Title: Electrostatic printers
IPC: G03G15/10
Filed: 1964-03-19
Abstract: 987,847. Selective printing. INTERNATIONAL BUSINESS MACHINES CORPORATION. March 19, 1964 [April 23, 1963], No. 11581/64. Heading B6F. [Also in Division G2] An electrostatic printer for printing of electrostatically produced latent images on a recording medium 5 comprises a thin, endless, porous insulator belt 1 having formed on one side thereof a latent image 10, a polarized ink applicator 4 for application of the ink 29 for the other side of the belt, whereby the polarized ink is selectively drawn from said other side to the said one side of the belt 1, by the electrostatic charge of the latent image 10, to form an ink image 11 on a recording medium 5 which is brought in contact with the said one side of the belt by a printing roller 7. In operation, the belt 1 moves in the direction of arrow 2 and has formed on the upper surface thereof the latent image 10 by selective application of pulses to pins 17 of the latent image forming means 3 controlled by a unit 19, whichaccepts its input from e.g. a computer. The image formation is assisted by a corona discharge unit 27 connected to a D.C. voltage supply which also activates a conductor bar 25 of the polarized ink supply 4. Following the image formation an ink roller 28 applies the ink 29 to the under surface which is drawn selectively .through the pores of the belt by the electrostatic charges of the latent image 10 to form the ink image 11, which is subsequently transferred to the printing medium 5 by the printing roller 7. The insulator belt containing the remnants of the ink image 11 and ink 29 then passes down through a liquid cleaning agent 31 contained in a chamber 30. The belt then passes between a cleaning blade 32 and a pinch roller 33 which remove the agent 31 from the belt. A fast drying agent 31 may be used so that the belt is dry before the belt again reaches the charging and inking stations or other drying means such as heaters may be provided. In another embodiment (not shown) the latent image 10 may be applied to the recording medium 5, having insulating properties and to permit the electrostatic image to draw the ink through the insulator belt a sufficiently long duration of contact between the belt and recording medium is allowed.
Patent GB-725208-A (GB)
Title: Process for the production of hollow valves for internal combustion engines
IPC: B21K1/22
Filed: 1953-04-27
Abstract: 725,208. Making internal-combustion engine valves. TEVES, A., TEVES, H., and TEVES, E. A.; [trading as TEVES MASCHINEN-UND ARMATURENFABRIK KOMMANDIT-GES., A.]. April 27, 1953 [Oct. 31, 1952], No. 11616/53. Class 83 (2). In a method of making hollow valves for internal-combustion engines a blank 1, Fig. 1, having a blind hole filled by a core 2 of iron or other deformable metal is shaped to form a head 9, Fig. 3, and stem 4 from which the core is subsequently withdrawn axially. A projecting end 8 is formed in the core during initial formation of the stem 4 by extrusion for removing the core which may be coated by a phosphate &c. for ease of extraction. A cap 11, Fig. 4, is finally attached as by stud or spot welding. A reinforcing ring 12 may be applied to the blank before the final forging stage so that it is worked into the final form of the head.
Patent GB-948221-A (GB)
Title: Esters of phosphorus-containing acids
IPC: C07F9/165
Filed: 1962-03-27
Abstract: The invention comprises compounds of formula: <FORM:0948221/C2/1> where R1 and R2 are C1-4 alkyl or alkoxy, R3 is C1-4 alkyl, R4 is hydrogen, unsubstituted or substituted aliphatic or aromatic hydrocarbyl or -OR5, R5 being unsubstituted aliphatic or aromatic hydrocarbyl, and X and Y are oxygen or sulphur (same or different). They may be prepared by condensing N-alkyl-carbamic or -thiocarbamic acid esters or N-alkyl-carboxylic or -thiocarboxylic amides with formaldehyde and dialkyl thiolor thionothiol-phosphoric, -phosphonic or -phosphinic acids. An organic solvent may be used and temperatures of 40-50 DEG C. are desirable. Those compounds in which Y is oxygen may be obtained by the condensation of N-methylol amides or urethane with the appropriate phosphorus thioacids, generally in an organic solvent and preferably with a dehydration catalyst such as a carbodiimide, or by reacting N-chloromethyl amides or urethanes with phosphorus thio acids in the presence of an acid binding agent or with salts of the acids, preferably in a solvent and at 0-100 DEG C. The products are pesticides.ALSO:Pesticidal compositions comprise, along with solid or liquid carriers, an organophosphorus compound of formula <FORM:0948221/A5-A6/1> where R1 and R2 are C1-4 alkyl or alkoxy, R3 is C1-4 alkyl, R4 is hydrogen, unsubstituted or substituted aliphatic or aromatic hydrocarbon or -OR5, R5 being unsubstituted aliphatic or aromatic hydrocarbon and X and Y are each oxygen or sulphur.  Solutions are mentioned. (For preparation see Division C2.)
Patent GB-436126-A (GB)
Title: Improvements in speed governors for liquid injection internal combustion engines
IPC: F02D1/00
Filed: 1935-04-17
Abstract: 436,126. Speed governors. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. April 17, 1935, No. 11805. Convention date, May 25, 1934. [Class 57] The output of a fuel-injection pump is controlled by a rack bar x having a pin 11 positioned in a slot 12 in a member 13 connected to a diaphragm 14 loaded by a spring 16. The diaphragm chamber is connected by a pipe m to a Venturi located in the air induction pipe between a throttle valve and the engine. When running idly at low speeds the length of the slot 12 is sufficient to permit the diaphragm to oscillate due to pressure fluctuations without moving the bar x. Outside the idling speed range the bar x engages a plunger 17 loaded by a spring 19. Alternatively, light springs may be arranged on either side of the slot 12 so as to engage the pin 11.
Patent GB-768529-A (GB)
Title: Improvements in or relating to luggage racks for motor cars
IPC: B60R9/06
Filed: 1955-04-25
Abstract: 768,529. Trailer vehicles. ANDERSSON, B. A. April 25, 1955, No. 11868/55. Class 108(1). A car trailer vehicle for luggage comprises an end section A having frame members 2 secured to the rear of the tractor vehicle and supporting a floor 1 and sides 22 pivotally mounted at their forward ends on pins 20 secured to the frame members 2. An intermediate section B has side plates 9 pivoted at 9a to the frame members 2 and carries a detachable castor wheel 17 mounted on transverse springs and to the rear of the section B an end section C is pivoted at 13, the sides 12 of which engage under hooks 25 formed on the upper edges of the sides 22 of the end section A thus maintaining the carrier in its extended position. To collapse the trailer the end C is pivoted upwardly to release the sides 12 from the hooks 25 and then the sides 22 of section A are swung round into a transverse position to enable the sections A and B to be collapsed as indicated by the arrow and then covered by the side and end walls and floor of section C.
Patent GB-289093-A (GB)
Title: An improved construction of cinematograph camera
IPC: G03B1/12
Filed: 1928-04-23
Abstract: 289,093. I. G. Farbenindustrie Akt.- Ges., (Assignees of Dorma Ges. f³r Feinmechanik u. Apparatebau). April 22, 1927, [Convention date]. Drawings to Specification. Kinematograph apparatus. - Motor driven cameras comprise three parallel plates connected by bolts to form a single member which is removable from the external case and carries the motor, the operating mechanism, and the gate.
Patent GB-900038-A (GB)
Title: Process for removing oxygen dissolved in water
IPC: B01J47/00
Filed: 1960-04-05
Abstract: A process for removing oxygen in water by means of ion-exchangers charged with reducing agents comprises contacting the water with a water-insoluble anion-exchange resin containing quaternary-ammonium groups and charged with polysulphide.  The exchanger may be regenerated with alkali-metal or ammonium p  polysulphides.  The water, after passing through the anion exchanger, may be contacted with a mixture of a water-insoluble anion-exchange resin containing quaternary-ammonium groups in salt form and elemental sulphur.  Only strongly basic anion exchangers can be charged with sulphide ions since basic exchangers are converted into the basic form by the alkaline sulphide solutions Specifications 654,706, 679,850, 679,851. 679,852, 700,470, 740,840, 779,994, 816,583, 867,449.  867,769, 885,719 and 900,037 are referred to.
Patent GB-449354-A (GB)
Title: Improvements in electric terminal connections
IPC: H01R11/26
Filed: 1935-04-23
Abstract: 449,354. Electric couplings. BENNETT, H. J., Wrythe Service Station, Carshalton, Surrey. April 23, 1935, No. 12109. [Class 38 (i)] A clamping connector for coupling a cable to a battery terminal post receives the cable end 12 in a transverse hole 11 where it is tightly engaged, when the connector is clamped on the post, by a loose bar 14 curved on one side to conform with the post and on the opposite side to fit against the cable. The bar may be kept captive in the hole 11 by a rib and groove 17 on the connector and bar respectively.
Patent GB-544043-A (GB)
Title: Improvements in or relating to methods of and apparatus for treating hydrogel
IPC: C01B33/158
Filed: 1940-07-24
Abstract: 544,043. Treating solids with liquids. STEVENS, A. H. (Davison Chemical Corporation.). July 24, 1940, No. 12110. [Class 82 (i)] [also in Group III] Silica &c. hydro-gel is washed in deep narrow containers, the side walls of which give some support to the gel and prevent undue consolidation. The apparatus may comprise a vessel 1 about 10 feet high divided by partitions 2 into compartments 8 inches wide, which are closed below by members 13 pivoted to enable the compartments to be emptied into hopper 21. Washing liquid is admitted by pipe 5. Specification 308,138, [Class 1 (ii)], is referred to.
Patent GB-1496391-A (GB)
Title: Braking system for a vehicle
IPC: B60T8/26
Filed: 1975-03-24
Abstract: 1496391 Fluid pressure brakes FABRICA ITALIANA MAGNETI MARELLI SpA 24 March 1975 [3 April 1974] 12118/75 Heading F2F A regulator valve 5, which supplies full air pressure from a distributer 1 to front brake actuators 3 on failure in a rear brake circuit in a braking system with a load-responsive valve 4 between the distributer 1 and the rear actuators 2, is normally responsive to the rear brake pressure and comprises a first movable element 21 with a stem 25 for actuating a shut-off valve 31 between the distributer 1 (port A) and the front brakes (port C) and a second coaxial movable element 22 with a hollow body 32 providing a valve seat 34 for the shut-off valve 31 and a piston part 33, the shut off valve being opened in the absence of rear brake pressure (at port B). The pressure regulator and 3 way relay valve in Fig. 2 further comprises two pistons 23, 24 subject to the front and rear brake pressures, control springs 36, 37 and extensions 26, 28, 38 and 39 for limiting travel of the movable elements 21, 22. An alternative regulator (Fig. 4, not shown) has a first movable element (21a) with a single piston (23a) and co-operable with a hollow valve member (48) which extends through an end wall of the regulator for venting the front brakes.
Patent GB-1184086-A (GB)
Title: Improvements in or relating to Fuel Elements
Inventor: BRAMFITT ARTHUR CLIVE FORD
IPC: G21C3/08
Filed: 1967-03-15
Abstract: 1,184,086. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 29 Jan., 1968 [15 March, 1967], No. 12166/67. Heading G6C. A fuel element 24 providing an irradiation facility in a materials testing reactor (Figs. 1, 2, not shown) cooled and moderated by heavy water, comprises a tube 26 for receiving experimental samples surrounded by curved longitudinally-extending fins such as 30, 31 supported by inner and outer rings 51, 52. The passages such as 33a, 34a, 35a permit the coolant to flow both longitudinally and circumferentially with respect to the tube 26. Each of the nine fins such as 30, 31 subtends an angle at the centre of tube 26 of 60 degrees and each fin is constituted by a fuel plate of enriched uranium clad in aluminium.
Patent GB-1083719-A (GB)
Title: Apparatus for the granulometric analysis offine-grain or pulverulent particles
IPC: B04C3/04
Filed: 1966-03-18
Abstract: 1,083,719. Centrifugal separators. SIEMENSSCHUCKERTWERKE A.G. March 18, 1966 [March 18, 1965], No. 12167/66. Heading B2P.  An apparatus for the granulometric analysis of fine-grain or pulverulent particles in a gaseous carrier medium comprises a plurality of helical flow separators 1-8 which are each provided with one or more inlets 40 - 75 through which an auxiliary gas is introduced into the separator in a direction tangential to the helical flow and obliquely to the axis of the helical flow. The separators are connected either in series, as shown, or in parallel Fig. 2 (not shown) and each is provided with a separate particle collecting container 21-28. The auxiliary gas inlets 40 - 75 are arranged in a specific number and/or size differing from one separator to another. The particle-laden carrier gas is introduced through an inlet 10 and is given a whirl by a nozzle 11. The outlet of each separator constitutes the inlet for a succeeding separator and is also equipped with whirl imparting nozzles 12 - 18. The auxiliary gas introduced in each separator is in the form of a potential flow which at the level of the particle-laden carrier gas inlet is partly deflected towards the separator axis and is converted together with the whirling flow of carrier gas into a rotary flow from which particles within a certain size range are separated out radially and discharged by another part of the potential flow into the respective particle collecting container. The carrier gas issuing from the last separator 8 is passed through a filter bag to remove any particles still present in the gas. In the parallel arrangement, Fig. 2 (not shown), the particle-laden carrier gas is introduced via a venturi measuring nozzle (110) into an inlet duct (120) which contains partition walls defining passages having the same cross-sectional area for distributing the carrier gas uniformly among the separators (101 - 108). The auxiliary gas is supplied from a common vessel (130) and the separators discharge the residual gas and particles into a common outlet duct (131, 132) connected to a fitter bag (133). The particles separated from each separator are collected in separate collectors (121 - 128). Alternatively the supply of particle-laden carrier gas in non- uniform and each separator has its gas outlet fitted with a filter bag. The inlet duct of each separator may be equipped with a venturi measuring nozzle.
Patent GB-245334-A (GB)
Title: Improvements relating to the manufacture of caps
IPC: A42B1/06
Filed: 1925-05-11
Abstract: 245,334. West, M. J. May 11, 1925. Caps. - The peak A of a cap is reinforced by a sheet-metal plate B formed at intervals with points or teeth adapted to be passed through holes in the peak and clenched. The plate may be of crescent shape and may carry one part C of the usual press fastening for attaching the front part of the cap to the peak.
Patent GB-901744-A (GB)
Title: Improvements in and relating to the manufacture of electrical contacts
Inventor: NEWMAN REGINALD JAMES
IPC: B21K1/58
Filed: 1960-04-06
Abstract: 901,744. Making electrical contacts; brazing. JOHNSON, MATTHEY & CO. Ltd. Feb. 6, 1961 [April 6, 1960], No. 12238/60. Classes 83 (2) and 83 (4). [Also in Group XXXVII] In making a hollow shank rivet-type bimetallic electrical contact a hollow cylindrical or tube-like metal element 2 and a solid head forming element 1 of different metal are bonded together in end-to-end contact and simultaneously or subsequently axial pressure is applied to the bonded elements to cause flow of metal of both elements to form a composite solid head on the hollow element. The element 2 deep drawn from a copper disc is fed automatically to a brazing apparatus where a brazing alloy disc 6, Fig. 3, blanked from an alloy strip, is positioned on its solid end 5. The element 1 of silver cut from strip, rod or wire, is fed automatically flat face 1b first to contact the disc and the assembly is heated by flame or induction to effect brazing. The bonded assembly is fed to the die of a punch press having a central mandrel over which the bore 4 of the element 2 passes and an annular recess at the upper end, metal of the element 2 being forced into the recess to form an annular flange 7, Fig. 4. The assembly is automatically transferred to a die which shapes the element 1 to the form shown in Fig. 5. The element 1 may be welded to the element 2 and the latter element may be a tube.
Patent GB-220357-A (GB)
Title: Improvements in apparatus for cleaning internally cans, casks, large bottles and other hollow articles
IPC: B08B9/08
Filed: 1923-05-08
Abstract: 220,357. Frankland, W., and Maloney, T. E. May 8, 1923. Cans, bottles, and cylindrical articles, cleaning. -Apparatus for cleaning the interiors of hollow articles, in which side and end brushes are swung outwards from a central carrier after insertion into the article, comprises a rotary hollow brushcarrier 3 supported in bearings 8, 24a, so as to project into a trough 24 having supports 25 for the cam &c. 1. Fixed to the end of the carrier is a small brush 2, and pivoted on pins 20 arc brushes 4 adapted when swung into the position shown in Fig. 3 to clean the bottom of the can. A side brush 5 is connected to the carrier 3 by links 16, 17, the link 16 being connected by a link 15 to a pin 11 fixed to a hollow shaft 10 slidably fitted within the carrier; also pivoted to this pin is a link 13 carrying a shoulder brush 6 which is pivoted to a collar 14 on the carrier. Extending slidably through the carrier 3 is a rod 18 carrying at its end links 19 which pass through slots 3<a> in the carrier and are connected to the brushes 4. The pin 11 extends through slots 12 in the carrier 3, and movement of the hollow shaft 10 towards the bottom of the can will retract the brushes 5, 6 into the positions shown dotted, while movement of the rod 18 in the opposite direction will retract the brushes 4. This longitudinal movement is obtained by having collars 21, 21b fitted to the outer ends of the shaft and rod respectively and connected by pins 21<a> to lazy-tong levers 22 having a spring 22<c> tending to force the collars apart and hence retract the brushes. A flexible wire 22b extends to a handle or pedal whereby the brushes may be moved into their operative positions. The carrier 3 is detachably secured to a driving shaft carrying fast and loose pulleys 9, 9<a> so that different carriers may be used for various cleaning operations. The. links carrying the brushes may be adjustable in length to suit different sizes of cans.
Patent GB-1080854-A (GB)
Title: Flow-limiting device, especially for nuclear reactors
Inventor: COSTES DIDIER
IPC: G21C9/00
Filed: 1966-03-21
Abstract: 1, 080, 854. Regulating fluid flow. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 21, 1966 [April 2, 1965], No. 12364/66. Heading G3H. [Also in Division G6] In a carbon-dioxide gas cooled graphitemoderator reactor, coolant gas flows into each vertical fuel channel through a Venturi throat at the base. The throat is dimensioned so as to limit the coolant flow velocity in the channels to a value below that at which levitation of the fuel elements occurs. At this value the coolant gas attains the velocity of sound in the Venturi. Each Venturi is associated with a graphite debris collector at its upstream end. At the downstream, i.e. the upper end of each Venturi, a shock-absorbing or damping device is mounted within the fuel channel to absorb the impact of falling fuel elements. The shock-absorber incorporates a soft, deformable metal member. A pneumatic downward seating force is applied to the Venturi; ducts lead from the throat to the underside of the assembly which is thus subjected to a pressure which is lower than that applied in the opposite direction by the flow of coolant upwards.
Patent GB-769639-A (GB)
Title: Improvements in and relating to brassieres
IPC: A41C3/00
Filed: 1955-04-29
Abstract: 769,639. Brassieres. EVEN-PUL FOUNDATIONS, Inc. April 29, 1955 [Dec. 20, 1954], No. 12413/55. Class 141. In a brassiere comprising breast pockets having their inner lower corners 14a secured together in overlapping relation, each breast pocket comprises a main portion 14 to the lower edge 18 of which is sewn an elastic band 17, the inner ends of the bands overlapping freely. In the form shown in Fig. 5, the brassiere is extended downwardly by an inelastic section 23a and elastic sections 23b sewn to the main portions 14 along the line 18, shirring 24 being provided to allow for stretching of the bands 17.
Patent GB-1420171-A (GB)
Title: Ethers
IPC: C07C241/00
Filed: 1973-03-15
Abstract: 1420171 Aryl ethers CIBA-GEIGY AG 15 March 1973 [16 March 1972 16 Feb 1973] 12465/73 Heading C2C Novel compounds I in which R 1  is H, halogen, C 1-4  alkyl, vinyl or ethynyl, R 2  is H, halogen, CH 3  or C 2 H 5 , R 3  is H, halogen, C 1-4  alkyl or C 1-4  alkoxy, and R 5  is H or halogen, or R 3  and R 5  together represent a carbon-carbon bond or an oxygen bridge, R 4  is H, halogen or CH 3 , R 6  is H or CH 3 , R 7  is cyclohexyl or a group of formula Y or Z in which R 8  is H, halogen, C 1-4  alkyl or C 1-4  alkoxy and R 9  is H or n-propyl, Y is -CH 2 -, -CH(CH 3 )-, -C(CH 3 ) 2 -, -CH 2 O-, -OCH 2 -, -CH=CH-, -N=N- or a direct bond, and each of m and n is 0 or 1, are prepared by known etherification, epoxidation, hydrohalogenation or hydrogenation procedures. Insecticidal compositions comprise a compound I together with a solid or liquid extender and, optionally, known insecticides.
Patent GB-1446836-A (GB)
Title: Optical body
IPC: G02B5/04
Filed: 1975-03-25
Abstract: 1446836 Prisms JOBIN-YVON S A 25 March 1975 [3 April 1974] 12521/75 Heading G2J A prism for sighting instruments e.g. binoculars has six internal reflection faces as shown. The surfaces KL NM and OPRQ may be metallized.