baber/WOPTO huggingface dataset:
Patent GB-716063-A (GB)
Title: Improvements in or relating to process for making tetraethyllead
IPC: C07F7/24
Filed: 1952-04-09
Abstract: Tetraethyl lead is prepared by reacting ethyl chloride with a sodium-potassium-lead alloy in which the sodium content is between 5 and 35 weight per cent and the potassium content is from 0.1 to 5 weight per cent, in the presence of a lead alkylating catalyst, at a temperature from 0 DEG  to 100 DEG  C., under a pressure such that at the temperature used the ethyl chloride is maintained in the liquid phase, and for a time within 1/4 to 8 hours.  A large number of lead alkylating catalysts are referred to in the Specification and include anhydrides of carboxylic acids, non-quinonoid ketones containing carbon, hydrogen and oxygen and from 0 to 2 halogen atoms, carboxylic acid esters and amides, acetals, alcohols, ethers, aldehydes, amines, nitriles, peroxides, nitro compounds, esters of nitric and nitrous acids, acid chlorides, isocyanates, isothiocyanates, thioethers, iodine and aluminium chloride.  The alkali metal content of the lead alloy may be between 48 and 52 atoms per cent.  The amount of potassium present may be between 1 and 2 per cent and the atomic ratio of lead to total alkali metals is 1 to 1.  The example illustrates the preparation of tetraethyl lead using a wide range of catalysts.
Patent GB-673250-A (GB)
Title: Improved apparatus for scouring or washing materials, articles of clothing, fabrics, textiles, woollens and the like
IPC: D06B13/00
Filed: 1950-04-13
Abstract: <PICT:0673250/IV (c)/1> <PICT:0673250/IV (c)/2> Apparatus for scouring or washing wool, clothes, textiles and the like by imparting vibrations to the washing liquid comprises a pair of hollow bodies 5, 6 flexibly connected to each other in superposed coaxial relation and electrically operative means associated with one of the bodies for imparting vibration within a frequency range of 50 to 200 cycles per second to both bodies, and means to constrain the bodies to vibrate axially in opposite directions.  The bodies 5, 6 are immersed in the liquid containing the clothes and are connected by a threaded rod 13 secured to a rubber or like diaphragm 12 forming a closure for the bottom of the upper body.  The body 5 comprises a sealed cylindrical casing housing an electromagnetic vibrator 7, and a truncated cone-shaped lower portion 10.  The body 6 is cone-shaped and has a skirt portion 6a supported on the base of the washing vessel by a number of spaced rubber blocks 21.  These blocks are carried on the ends of rods 22 which are threaded into the skirt portion 6a and, together ring 23 attached thereto form a guard for the apparatus.  An apertured disc 26 is secured to the top of the body 6 and is carried on the spindle 13 of the electromagnetic motor 7. A cup member 27 provided with an apertured stem internally threaded to receive a tube 29 is mounted inside the body 6.  The extent to which the tube 29 projects downwardly can be varied by p  releasing a lock nut 29a, so as to vary the liquid level L within the body 6.  The air lock a which is thus formed around the member 27 improves the efficiency of the washing action by absorbing the vibrations of the inner wall of the body 6 which would otherwise interfere with those from the outer wall.  The amplitude of oscillation of the bodies may be damped to the required extent by adjustment of the liquid level L.  The electromagnetic motor 7 comprises an E-shaped core 32 carried by brackets 31 and the central limb 34 has wound thereon a coil 35.  The armature 38 is laminated and is supported by means of spaced pairs of leaf springs 39 which are clamped at each end by screws 33.  The spindle 13 is secured to the armature 38, and is clamped relatively to the springs 39 by means of a control transverse block 40a and a lower parallel block 41.  In a modification (Fig. 5) the lower hollow body 61 is supported clear of the base of the washing vessel by means of a number of legs 42 whose upper and inner ends are attached to an annular ring 111 at the bottom of the upper body 51.  The legs 42 are fitted with rubber or like pads 43.  The skirt 6a of the lower body 61 has a number of circumferentially spaced apertures 44 through which the liquid passes in streams.  Instead of being cone-shaped the surfaces of the bodies 5, 6 may be of parabolic form.
Patent GB-512991-A (GB)
Title: Improvements in or relating to lubrication systems of engines
IPC: F16N19/00
Filed: 1938-03-25
Abstract: 512,991. Valves. CARTER, B. C. March 25, 1938, No. 9112. [Class 135] [Also in Group XXXIV] In a lubricating system of the dry sump type oil is bye-passed from the delivery side of a scavenge pump 5 to a vessel 2 from which the pump 5 is supplied, the rate of flow in the byepass 10 being controlled by the oil level in the vessel 2 so as to maintain the oil level sufficiently above the outlet 4 to prevent the pump 5 drawing in air with the oil. As shown, the bye-pass is located between a filter 6 and a cooler 7, the pump 5 normally discharging through a non-return valve 11 to a tank 8. A lubricating pump 9 draws from the tank 8 and supplies the engine 1. The flow through the byepass 10 is controlled by a float controlled piston valve 12 arranged to cut off the flow when the oil level in the vessel 2 reaches a predetermined limit. The valve 12 has a piston 14 controlling outlet ports 17 and a balancing piston 13. Upward movement of the valve is limited by a flange 20. Means for damping the movement of the valve 12 may be provided. The bye-passed oil may flow into the vessel 2 below the oil level therein or may pass to the suction side of the pump 5. In a modification the bye-pass valve may be coupled to one or more diaphragms forming a bellows one side of which is subjected to constant air or oil pressure and the other side of which is subjected to the oil pressure corresponding to the head of oil above the bellows.
Patent GB-1124178-A (GB)
Title: A frame stave for a heald frame
IPC: D03C9/06
Filed: 1966-03-02
Abstract: A web 5 with a beaded top edge is secured to the top stave 1 of a heald frame to strengthen it.  The web may be corrugated, have lightening holes or be in more than one part.
Patent GB-298041-A (GB)
Title: Improvements relating to the manufacture of cabinet catches or spring bolts
IPC: E05C19/02
Filed: 1928-03-27
Abstract: 298,041. James, J. H. March 27, 1928. Catches, ball-ended.- The cylindrical casings of ball-ended cabinet catches of the type described in Specification 198,823 are formed from a sheet metal blank a having a number of wings by operating on the central part with suitabledies b, c to form an elongated cap 1 with the wings brought closely together, Fig. 3, in a single operation. The cupped end 1 is then flanged by dies f, d, Fig. 5, and pierced to receive the ball 3 and spring 5. The open end 7 is then closed.
Patent GB-989821-A (GB)
Title: Improvements in the control of a plurality of hydraulic motors
IPC: F16H61/46
Filed: 1963-03-08
Abstract: 989,821. Hydraulic transmissions. R. C. PEARSON. Feb. 3, 1964 [March 8, 1963], No. 9439/63. Headings F2C and F2D. Synchronous or proportional speed control of a number of variable-displacement motors 8, 9, 10 supplied from a pump 1 is effected by a manual selector valve 51 and associated piston actuators 18, 19 . . ., the latter being controlled by a follow-up servo-unit 20, 98. The motors drive flow-varying pumps 42, 43, 44 connected in series to control valve 51, the motors being connected in parallel through flow-lines 5, 11; 6, 12; 7, 13. The piston actuators are connected in parallel between the main pump supply line 4 and an auxiliary line 48a, 48b . . ., and have differential piston rods 24, 27 &c. so that they are biased to the right. Actuation of control valve 51 results in successive starting-up of the motors, any out-of-balance flow from an auxiliary pump resulting in operation of the associated piston actuator to adjust the flow of the motor ; e.g. if motor 9 slows down due to overloading its associated pump 43 passes less fluid to control 44c this is removed by pump 44 so that piston 31 of actuator 19 moves to the left to increase the displacement of motor 10 to correspond with the flow from pump 44. The first pump 43 is of the variable displacement type for proportional speed control, or gearing between the pumps may be used for this purpose.
Patent GB-1104681-A (GB)
Title: Improvements in brackets for supporting beams or the like in building construction
IPC: E04G17/16
Filed: 1964-03-06
Abstract: 1,104,681. Brackets for supporting scaffolding beams. H. ROBINSON. 8, March, 1965 [6, March, 1964], No. 9483/64. Heading E1S A bracket for supporting floor shuttering, beams or scaffolding, having a vertical limb 10 engaging the wall by an horizontal arm 11 and carrying the beam &c. on a plate 14 adjustable by means of a screw 17 has screws 23 for maintaining it vertical. The plate 14 may carry a bracket for the end of a beam arranged at right angles to the wall. Screws 26 for withdrawing the arm 11 from the set concrete are provided.
Patent GB-161068-A (GB)
Title: Improvements in and relating to motor-car, motor-cycle and like lamps
IPC: F21V17/10
Filed: 1920-04-06
Abstract: 161,068. Hanmer, F. April 6, 1920. Lantern doors and door fittings. - A lantern front of a vehicle lamp is attached at one point by means of a concealed peg engaging an aperture in a tang, and at an opposite point by a slotted eye and anchored nut fastening. In one form, a tang f, secured on the inside of a flange g of a lantern front b, is passed obliquely through a slot e in a reflector-supporting flange c at the top of the lamp so as to clear the end of a peg h, secured on the inside of the lamp casing a, until a hole in the tang f can be passed over the peg h. The fastening at the bottom is then made by screwing a nut member k into engagement with an eye m.
Patent GB-493084-A (GB)
Title: A process for improving diesel fuel oils
IPC: C10L1/18
Filed: 1937-04-05
Abstract: Diesel oils are improved in viscosity, fuel value, cetene number, and pour point by adding condensation products of high m.w. aliphatic hydrocarbons with oxygen-containing aromatic compounds; soft paraffin wax or oil fractions containing it may also be added.  Up to 5 per cent of the condensation product is a suitable addition.  In an example, a Diesel oil obtained by the destructive hydrogenation of brown coal tar is mixed with 1 per cent of a condensation product of chlorinated paraffin wax with diphenylene oxide.
Patent GB-459212-A (GB)
Title: Systems comprising an element operated in a given position of a pendular system
IPC: G01G23/18
Filed: 1935-03-27
Abstract: 459,212. Dashpots. JANEMIAN, J. A., 63, Rue de Romainville, Paris. March 27, 1935, No. 9621. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 28, 1935]. [Class 108 (iii)] [See also Group XVIII] A dashpot, used in a weighing apparatus to prevent operation of a printing mechanism before the apparatus has come to rest, has two sets of perforations 5, 6 in the piston and two perforated plates 9, 10 pressed against opposite sides of the piston by an adjustable spring 14. To prevent closure of the liquid passages by rotation of the plates 9, 10 the perforations in the plates or in the piston are connected by an annular groove. In action the sections of flow afforded to the liquid vary automatically and maintain the pressure of the liquid substantially uniform during the damping g operations for all values of the viscosity of the liquid. The piston may work with clearance in the cylinder or a longitudinal groove may be provided between the piston and cylinder.
Patent GB-1383447-A (GB)
Title: Rechargeable solid state electrochemical cell having a lithium anode and a method of manufacturing the same
IPC: H01M10/36
Filed: 1972-03-01
Abstract: 1383447 Solid state cell with lithium anode COMPAGNIE GENERALE D'ELECTRICITE 1 March 1972 [4 March 1971] 9639/72 Heading H1B A rechargeable cell comprises a number of thin solid layers, these layers comprising, in order, (i) a cathodic collector, e.g. of silver; (ii) a catholyte capable of supplying anions which can form a salt with lithium, e.g. silver iodide; (iii) a separator consisting of a lithium salt, e.g. lithium iodide, and a material having a solid structure, the separator being an ionic conductor, an electron insulator, and being impermeable to the catholyte, and (iv) a lithium anode. The separator is made by a method which ensures that the lithium salt is present at least partially in solvate form whereby the ionic conductivity of the separator is increased. The method of the making the separator comprises putting the lithium salt in solution in a solvent and in forming a thin solid layer with that solution and the solid structure material. The solvent may comprise at least one of the following:-water, methanol, ethanol, acetone, acetamide, N-methylacetamide, N-methylformamide, N-methyl-2-pyrrolidone, isopropylamine, propylene carbonate, formic aldehyde. In a specific example of performing the method, a soluble organic binder is added to the solution of the lithium salt in the solvent. When the solvent is water, the binder is selected from the group polyvinylic alcohol and carboxymethylcellulose. When the solvent is methanol or ethanol the binder is selected from vinyl polyacetate, polyvinyl butyral, polyvinyl pyrrolidone, polyvinylic ethers, resols or formal-phenol prepolymeric resins and monomeric methacrylates. When the solvent is acetone the binder is selected from polymethacrylates, polystyrene, acrylonitrile, styrene, vinyl acetate and methacrylates. This solution is applied to a thin solid porous inert layer, constituting the solid structure material, so as to impregnate it. Heat is applied to evaporate the solvent. In other methods described, the binder constitutes the solid structure material.
Patent GB-454378-A (GB)
Title: Improvements relating to furniture
IPC: A47C4/54
Filed: 1935-03-28
Abstract: 454,378. Pneumatic seats. FINLAY, A. H., Willesden, Holywood, Co. Down, Northern Ireland. March 28, 1935, No. 9651. [Classes 52 (ii) and 52 (iv)] Chairs, settees, or like articles of furniture are constructed as a single pneumatic chamber, or from a plurality of such chambers, without the use of rigid frame members, the structure being rendered self-supporting by internal or external tie means. In the structure shown in Fig. 3, a single chamber is used provided with internal ties 12, 12a, but if desired the seat, back and arm rests may be separate chambers enclosed in covers and connected by lacings or other fastening devices. The inflatable member, when enclosed by a cover, may be a sinuously arranged tube 10 having padded stiffeners 11 in its folds as shown in Fig. 2.
Patent GB-1185063-A (GB)
Title: Seismic Exploration
Inventor: EMBREE PETER
IPC: G01V1/36
Filed: 1967-03-21
Abstract: 1,185,063. Seismic prospecting. TEXAS INSTRUMENTS Inc. 21 March, 1967 [21 March, 1966], No. 9710/67. Heading H4D. In the processing of seismic records obtained by generating seismic waves successively at two different depths at the same location and detecting the ensuing waves in the same spread of detectors, delay means, e.g. 80 produces a plurality of output signals and attenuations are applied to the output signals which are thereafter summed; according to the invention the attenuations are the solutions of a matrix equation involving the auto- and cross-correlation functions of originating signals x 1 (t) and x 2 (t). Multiple reflections and other undesired signals are thereby reduced on the final record.
Patent GB-772158-A (GB)
Title: Means for coupling a pipe or pipes to a barrel or other liquid container
Inventor: GRETTON-LOWE REGINALD
IPC: F16L37/28
Filed: 1955-04-04
Abstract: 772,158. Tapping casks and other vessels. GASKELL & CHAMBERS, Ltd. Oct. 27, 1955 [April 4, 1955], No. 9719/55. Class 21. [Also in Group XXVIII] A valve coupling for barrels and other containers comprises a body part 1, Fig. 1, attached to the container 2, and a closure member 3 held in contact with the inner face of the body 1 by screw means 4, the closure member 3 being rotatable until one or more openings in it are in alignment, as in Fig. 3, with one or more corresponding passages 6 in the body 1. A spigot 10, for coupling a, pipe 11 to the container 2, carries one or more key pieces 15 that are adapted to pass through enlarged ends 15 of arcuate slots 7 in the body 1 and into engagement with the closure member 3, the spigot 10 being centred on a neck 5 formed by the body 1. By turning the key pieces 15 about the neck 5, that is relatively to the body 1, the member 3 is caused to turn and at the same time the neck portions 16 in the key pieces 15 interact with the narrow portions of the slots 7 to prevent axial movement of the key pieces 15. The key pieces 15 depend from a hollow head 12 surrounding the spigot 10 and in the head 12 is a spring 13 which can exert axial pressure on a shoulder 14 of the spigot 10 to press the spigot 10 against sealing means 9. Other embodiments are also described in which two pipes 11 are capable of being coupled to the body 1, one pipe serving to convey liquid from the container 2 and the other to convey gas, such as carbon dioxide into the container. Fig. 4 shows an embodiment in which the spigot 10 is shaped to form a spout and a downwardly bent inlet pipe 17 is secured to the inner side of closure member 3. This construction is intended for attachment to the lower part of one end of a barrel to enable the whole of the contents of the barrel to be withdrawn.
Patent GB-178118-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M3/08
Filed: 1922-04-05
Abstract: 178,118. Cozette, R. April 5, 1921, [Convention date]. Spray carburettors. - A carburettor having a slow-running nozzle 3 and one or more main nozzles 2 is provided with two interconnected throttle valves 5, 6, the valve 6 being slightly smaller in diameter than the induction pipe 1, the main nozzles being arranged on the air inlet side of both valves and the passage 3<1> for the mixture from the slow-running nozzle delivering into the space between the two valves. The throttle valve spindles 5<1>, 6<1> may be provided with levers, of the same or of different lengths, interconnected by a link, or may be provided with pinions which mesh with an intermediate pinion.
Patent GB-666336-A (GB)
Title: Improvements relating to electric lamp holders
IPC: F21V21/002
Filed: 1949-04-11
Abstract: 666,336. Lamp holders. BLOOM, H. April 11, 1950 [April 11, 1949], No. 9823/49. Class 38 (i). To secure a cable to a lamp-holder d of the kind described in Specification 341,265, [Group XI], wherein the holder base e has a groove g in which there are two pins h adapted to pierce the cable insulation, a plate a is mounted on a screw c, passing therethrough at b into the holder base on one side of the groove, and is provided with an open slot for another screw f also passing on the other side of the groove into the holder base, the screws being tightened upon the plate to force the pins into the cable conductors. Preferably, one edge of the plate is shaped so as to lie along an edge of the groove, thereby permitting the cable to be easily inserted or withdrawn, Fig. 2. Instead of a hole b and a recess the plate may have two open recesses, Fig. 4 (not shown). The plate is also provided with extensions having holes k for fixing screws.
Patent GB-625783-A (GB)
Title: An improved gland packing assembly
IPC: F16J15/38
Filed: 1947-04-14
Abstract: 625,783. Stuffing-boxes. BERTRAMS, Ltd., and GRANT, J. April 14, 1947, No. 9825. [Class 122(v)] In a gland packing assembly for a shaft a which has to be permitted considerable movement of its axis of rotation, and comprising a stuffing-box d mounted on. the shaft, and a gland packing g, h in the stuffing-box arranged for sealing against the rotating surface of the shaft including a facial sealing surface c<1> on the shaft means are provided restraining rotation of the stuffing-box while permitting movement in a plane normal to the axis of the shaft and having a complementary seal between the stuffing box and a surface of the surrounding structure in a plane normal to the axis of the shaft. The stuffing-box is formed with a flange d<2> which is received in a housing formed by the surrounding stationary members k, m, the member m housing the complementary seal member n. The means restraining the stuffing-box from rotation comprises a radial groove o in the flange of the stuffing-box and a stud p in the housing engaging in said groove.
Patent GB-634081-A (GB)
Title: Improvements in or relating to threaded fastening devices, such as nuts
IPC: F16B37/00
Filed: 1946-03-29
Abstract: 634,081. Locking nuts. ELASTIC STOP NUT CORPORATION OF AMERICA. March 29,1946, No. 9831. Convention date, May 29, 1945. [Class 89 (i)] [Also in Groups XXII and XXIII] A nut or like screw threaded member comprises a tapped body 10 with skirts 20, 26 at each end. The skirt 26 continues a conical surface 34 which contacts a correspondingly coned surface on a high tensile steel ring 36 secured to the base of the nut by expanding the skirt into contact with a second conical surface 42. The skirt 20 forms a counterbore in which a nylon ring 46 is secured by flanging over the edge of the skirt, local indentations being formed to lock the ring against relative rotation. The spanner-engaging periphery of the nut is formed by two intersecting hexagons.
Patent GB-676479-A (GB)
Title: Improvements in double beat or equilibrium valves
Inventor: JAY JAMES BERTRAM
IPC: F16K1/44
Filed: 1950-04-21
Abstract: 676,479. Double-beat valves. HYMATIC ENGINEERING CO., Ltd. Feb. 20, 1951 [April 21, 1950], No. 9844/50. Class 135. A valve closure member comprises valve heads a, b of equal diameter slidable on an actuating stem c leakage along which is prevented by packing rings d. The head b abuts a shoulder i on the stem and Belleville washers, e, f, are interposed between the heads. A nut j is threaded on the stem to compress the washers and space the heads so that they engage seats m on the valve body simultaneously. The seating surface k of each head may be of rubber.
Patent GB-331255-A (GB)
Title: Improvements in or relating to means for assisting and testing the memory
IPC: G09B3/04
Filed: 1929-03-27
Abstract: 331,255. Humphreys, A. G. March 27, 1929. Anthropometrical appliances. - A device for assisting and testing the memory comprises a series of base members provided with transverse channels so shaped that one only of a series of elements will correctly fit into any base member, each pair of corresponding parts bearing respectively a question and its answer. The device may be made from a strip of cardboard or other material 8 cut along two similar or dissimilar lines 9 spaced apart at a constant mean distance, the outer elements 2, 3 so formed being secured to a backing strip and the whole then subdivided along lines 10, either or both of the lines 9, 10 being arranged so that no two sections are alike. The lines 9 may be of sinuous or wavy form or of toothed or other formation, and the lines 10 spaced apart at an interval different from that of the pitch of the undulations of the lines 9; further, the lines 9 may be displaced relatively to one another to provide additional series.
Patent GB-277883-A (GB)
Title: Improvements in and relating to the construction of lawn tennis racket frames
IPC: A63B49/02
Filed: 1927-04-11
Abstract: 277,883. Nada, G. April 11, 1927. Rackets.-In a lawn tennis racket frame of the kind built up of several strips of wood glued together and subsequently bent into oval form, the top surface of the wedge conforms to the oval of the frame and is slotted lengthwise along its upper surface to receive a block of wood the upper edge of which lies flush with the top surface of the wedge, the block being so arranged that its grain runs longitudinally along the surface for receiving the glue used for attaching a reinforcing strip. As shown, the laminated frame is provided with a wedge 6 with a wooden inset 7. The grain of the wedge runs in a direction parallel to the handle, and the grain of the inset is at right angles to the grain of the wedge and longitudinal to a reinforcing strip 8 glued on to the wedge upon the inner side of the frame.