baber/WOPTO huggingface dataset:
Patent GB-852272-A (GB)
Title: A multi-cell-stack for the electro-dialysis of electrolyte solutions
IPC: B01D61/50
Filed: 1959-04-10
Abstract: 852,272. Electrodialysis. ISRAEL, PRIME MINISTER OF, and MENTS, M.V. April 10, 1959 [April 29, 1958], No. 12152/59. Class 41 A multi-cell electrodialytic apparatus comprises gasket layers each enclosing a cell space 12 and alternate anion-and cation-selective membranes 1 each disposed between two gasket layers and forming the cell space walls, the spaces 12 being oblong and alternate gasket layers being turned through 90 degrees so that the central parts of the spaces 12 register throughout the apparatus, but the end parts of the spaces 12 register between alternate gasket layers only and form part of two ducts serving to introduce liquid into and remove it from all the spaces 12 which are similarly oriented. Each gasket layer is formed by two members 10, 11 having recesses 13 which co-operate with the end parts of each adjacent space 12 to form the ducts, the membranes 1 overlying the central parts only. The central parts of the spaces 12 may have permeable spacers 4 which may be integral with the gaskets 10, 11, and peripheral washers may separate adjacent gaskets. The stack of gaskets and membranes is enclosed in a shell and secured, e.g. by bolts, between end plates to which electrodes are bolted, suitable liquid connections being made. In a modification, the gaskets are frames having large central oblong apertures corresponding to the spaces 12, and two smaller parallel oblong holes, one at each side of the central aperture, corresponding to the recesses 13. If the gaskets are rigid, they may have recesses for the membranes. Otherwise washers are employed as before. In another modification, Fig. 7, each gasket comprises two strips 24, the membranes 27 and spacers 26 (if employed) extending over the whole space between each two strips. The stack is mounted between end plates, four posts, each of which may consist of superposed separate elements, engaging corner recesses 25. Hoods form headers at each of the four sides of the stack, and partitions in the hoods may lead liquid separately to each cell space formed between adjacent membranes 27. In this embodiment, liquid is led straight through a cell space from the header, and no longitudinal ducts exist.
Patent GB-574269-A (GB)
Title: Improvements in or relating to electrical switch apparatus for operating devices on aircraft, and other purposes
IPC: H01H9/18
Filed: 1942-08-29
Abstract: 574,269. Retractive switches ; switch bases and covers. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. W. Aug. 29, 1942, No. 12202. [Class 38 (v)] A multiple switch housing 1 has a retractable plate 13, capable of depression against the pressure of a bared spring 13d to operate the switch. The operating arms 14 of two other retractable switches 7, 8 lie above the plate 13 at separated points. A pressure plate rests above these and is so mounted that either 7 or 8 or both can be operated by pressing on appropriate parts of the plate, and, on each occasion the plate 13 is also depressed to operate its switch. Switches 7, 8 are each in series with a switch 9 operable by a flap-plate which can be swung to cover the right hand part of the housing 1, in which position switches 7, 8 cannot be operated, and the overlying part of the pressure plate is covered. The left hand part is uncovered, pressure on which will operate switch 13 only by pressure on 13c.
Patent GB-489127-A (GB)
Title: A new alimentary product and process of manufacture
IPC: A23L11/00
Filed: 1937-04-30
Abstract: A rolled food product is obtained by mixing soya beans or soya bean flour, which have been treated to extract bitter taste and odour, with berries of one or more cereals and with germinated soya beans, and rolling the mixture so as to crush the beans or beans and flour into the cereal mass produced by the rolling.  A mixture of 1000 gms. of one or more cereals, 300 gms. of soya beans or flour and 50 gms. of germinated soya beans may be employed.  The cereals used include oats, rice, barley, maize, wheat and rye, and combinations employed include oats and rice or oats, wheat and maize.
Patent GB-313706-A (GB)
Title: Improvements in microphones
IPC: H04R23/00
Filed: 1928-04-27
Abstract: 313,706. Pollock, A. F., and Pollock, D. A. April 27, 1928. Vacuum tubes.-A thermionic valve operating as a microphone is provided with a screen capable of being held stationary by a magnetic field or by gravity so that, when the valve is displaced by sound vibrations,. the screen variably masks the anode from the cathode emission. Fig. 1 shows a construction in which the bulb a of a valve suspended by wires is mounted on a soundvibrated diaphragm b, c being the filament and d the anode. The screen is in the form of an L- shaped plate f pivoted on a flexible plate spring e and held stationary by a magnet g. In a modified construction, Fig. 2, two filaments c<1>, c<2> and two anodes d<1>, d<2> are employed, the pivoted plate f serving to control each of the valve systems in turn.
Patent GB-1443921-A (GB)
Title: Process and apparatus for actuating the ram weight compen sation mechanism of a press
IPC: B30B15/06
Filed: 1975-03-25
Abstract: 1443921 Ram weight compensating L SCHULER GmbH 25 March 1975 [26 March 1974] 12413/75 Heading B5F A weight compensating mechanism for the ram of a press is actuated automatically when the die set of the press is changed and operation of the press is prevented until the mechanism has been adjusted. At least one signal generator 101, 102, 103 provides an output in response to the press having its die set changed, i.e. in response to operation of ram adjusting mechanism, introduction of a support die, disconnection of a plug-in connector. The outputs of the generator operate a bi-stable multivibrator 103 whose output is applied to an AND gate 104 and a brake actuating and clutch disengaging blocking mechanism 105. Further signal generators 106-109 sense that conditions are suitable for adjustment of the compensating mechanism. The output of the gate 104 is applied to a control 110 for the compensating mechanism and the control output operates the multivibrator 103 to release the brake and engage the clutch.
Patent GB-858280-A (GB)
Title: Improvements in or relating to transistor trigger circuits
Inventor: TALBOT WILLIAM JOHN
IPC: H03K3/30
Filed: 1956-04-24
Abstract: 858,280. Transistor pulse circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 9, 1957 [April 24,1956], No. 12448/56. Class 40(6). A circuit for switching a transistor between its twc states of conductivity comprises a second transistor having its input circuit ir parallel with the input circuit of the first transistor and a transiently regenerative circuit connected between the output and input circuit of the second transistor to superimpose impulses on the input wave to assist the transient portions of the input wave. The input edge of a pulse at (a) causes current to build up in transistors T1 and T2, feedback through transformer T and capacitor C2 adding a voltage spike to the pulse edge to speed the build-up in transistor T2. A similar spike of opposing polarity is produced at the trailing edge of the input pulse to assist in clearing stored charge carriers from the base of transistor T2. Bias is supplied through a resistor R5 to ensure that transistor T1 is cut off in the absence of an input pulse and resistor R4 ensures that transistor T1 is only lightly bottomed when conducting so that it will switch off quickly. The circuit L1, R6, D1 prevents ringing in the transformer T.
Patent GB-270093-A (GB)
Title: Improvements in and connected with pleating machines
IPC: D06J1/06
Filed: 1926-05-14
Abstract: 270,093. Ezbelent, G., and Ezbelent, R. May 14, 1926. Pleating.-In " crystal pleating machines " in which a blade 1 is reciprocated horizontally to punch the fabric f between a cylinder 7 and a very thin spring pressed steel band 8, the blade is formed either of independent sections, as in Fig. 1, or is deeply indented, as shown in Fig. 2, to form flexible sections. By means of pattern mechanism which may take the form of a drum 13 with projections 12 which act on spring pressed plungers 10 bearing on corresponding sections of the blade, the pleating is varied. For example, by rendering a section or sections inoperative, the corresponding part of the pleat is changed, as shown in Fig. 9, to form accordion pleats amongst the crystal pleats or to vary the disposition and arrangement of the pleats. The pattern mechanism may take the form of a drum with projections engaging a pivoted lever bearing on spring pressed carriers for the knife sections, or a shaft with a series of cams acting on the knife sections. In a further modification, any of the blade carriers may be held at will out of action by means of a fork operated by a roller and attached to the shaft on which the knife elements are carried. Some of the knife elements are fixed to the shaft and move with the fork when the latter is depressed, thereby being thrown out of action. The pattern mechanism may also be similar to that employed in weaving.
Patent GB-1481783-A (GB)
Title: Link chain
IPC: A44C11/00
Filed: 1976-03-29
Abstract: 1481783 Chains A PERL 29 March 1976 [3 May 1975] 12491/76 Heading F2Q [Also in Division B3] A link chain is composed of a succession of identical links 11 hooked together in an articulated assembly and each constituent link has a substantially rectangular contour defined by two longitudinal leg portions 12 which have at their extremities transverse linking portions 13 thereby forming central substantially rectangular apertures 14 constituting the eyes of the links the leg portions 12 having a maximum cross-sectional width a greater than the width b of the linking portions 13 so as substantially to conceal the eye of an adjoining link through which one of the linking portions is engaged. The links are made from profiled wire stock 50, Fig. 4, which may have decorative patterns 56 formed on its side edges, by shearing off a link portion thereby forming end faces 51. A piercing die cuts out of the web portion 52 the eye 14 as well as a narrow slot 53 to form a split linking portion 13 when the next link is cut off at 54. The finished link is prised open, inserted over the linking portion 13 of the preceding link and closed by bending back to its original shape. The ends of the split linking portion may be soldered together or left unsecured, e.g. when mass producing inexpensive jewellery and pendant chains. The overall cross-section of the chain is octagonal, Fig. 3, but it may alternatively be circular, square or square with concave outer faces, Figs. 5-7 (not shown). The chain may also be used to provide a flexible drive of the Bowden cable type.
Patent GB-724479-A (GB)
Title: Improved arrangement for chopping the straw from a harvester-thresher
IPC: A01F12/40
Filed: 1953-05-05
Abstract: 724,479. Cutting straw. AKTIEBOLAGET WESTERASMASKINER. May 5, 1953. [May 8, 1952] No. 12500/53. Class 5 (1). [Also in Group XXX] Straw delivered from a harvesterthresher into casing 1 is directed by an arc shaped hood 2 down to a transverse conveyer 4 which passes it to a rotarv cutter device 10-12 arranged at the side of the casing 1-2, the axes of the rotary cutter extending in the direction of pull of the harvester-thresher so as to throw the chopped straw out sideways on to the ground. The cutter comprises knives 10 on the periphery of its roller 11, the knives cooperating with an edge-preserving wood covering of the roller 12. The cutter is driven from the main shaft of the harvester-thresher through a gear box 18 and universal joint 17 and 14 of a shaft 16 and an intermediate overload coupling 15. The cutter is enclosed in a casing 21 including a curved plate 23a adjustable by screws 27 in slots 26 to direct the chopped straw downwards and slightly rearwards. The transverse conveyer is an endless belt 4 having spaced cross pieces 3 formed with teeth to arrange and present the straws generally end on to the cutter. The conveyer 4 is carried on a frame, Fig. 3 (not shown), with hook ends and journals whereby it can be easily detached. Fixed side walls 9 are provided for the conveyers.
Patent GB-1175476-A (GB)
Title: Improvements in the Purification of Alkali Metal Hydroxides
Inventor: VEPREK-SISKA JOSEF
IPC: C01D1/30
Filed: 1968-03-15
Abstract: 1,175,476. Alkali metal hydroxides. CESKOSLOVENSKA AKADEMIE VED. 15 March, 1968, No. 12577/68. Heading BIS. [Also in Division C1] Potassium or sodium hydroxide is purified by forming a solid hydrate and zone-melting. Surfaces in contact with the hydroxide may be of PTFE or polyamide.
Patent GB-1078843-A (GB)
Title: Improvements relating to machines for cutting leaf tobacco
Inventor: WARD HARRY
IPC: A24B7/14
Filed: 1963-03-29
Abstract: 1,078,843. Cutting tobacco. AMF INTERNATIONAL Ltd. March 26, 1964 [March 29, 1963], No. 12599/63. Heading A4C. A tobacco cutting machine comprises upper and lower conveyer belts 20, 22 between which tobacco is fed to a rotary cutter drum 2 through a mouthpiece having a fixed, lower member 8 and an upper member 14 which is carried by a parallelogram linkage for vertical movement against the action of a ram 46. The upper member 14 is carried by a pair of parallel plates 24 supporting the upper conveyer 20 therebetween. Two pairs of parallel links 28, 30 interconnect the plates 24 and the main frame 26 and are effective to constrain the movement of the upper member 14 such that its bottom face 16 has a parallel movement and its front edge 18 moves in an arc 48 parallel to the cylindrical path 6 of the cutting edges of the drum 2. The bottom portion 15 of the upper member 14 is replaceable by another member having a different bottom face 16 inclination. The spacing of the arc 48 from the cutter path 6 is maintained by adjusting eccentric bushes 32 supporting one end of each link 28, 30. The driven roller 38 of the upper conveyer 20 is mounted in an eccentric bush 44 which is adjusted consistently with the link bushes 32.
Patent GB-643464-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R1/14
Filed: 1947-05-09
Abstract: 643,464. Microphones. SVENSKA AKTIEBOLAGET GASACCUMULATOR. May 9, 1947, No. 12615. Convention date, May 11, 1946. [Class 40 (iv)] In a contact microphone of the kind in which the diaphragm is coupled to the rest of the microphone by an elastic coupling so that the relative movement of the armature is small at low frequencies but at high frequencies when, owing to its mass, the microphone body is unable to follow the vibration, such frequencies are enhanced relative to the level of the lower frequencies, the armature 20 comprises a soft iron U-shaped member mounted by means of a leaf-spring 23 fastened to the free end of one of the shanks and extending towards the bent end of the armature. The microphone, Fig. 1, comprises a cylindrical casing 10 having an inwardly projecting flange 12 on which an elastic coupling washer 29 supports the diaphragm 28 and beneath which is securely located an annular magnetic disc 13, with its pole pieces 14 and 15, which in turn houses a coil 18 on its bobbin 19. A plate 24, the projecting ends of which secure it within the bobbin 19, supports the U-shaped armature which is driven from the diaphragm 28 by a light yieldable rod 27.
Patent GB-1344518-A (GB)
Title: Glycerides of acetyltartaric acid
IPC: C11C3/04
Filed: 1971-05-03
Abstract: 1344518 Esters DYNAMIT NOBEL AG 3 May 1971 [2 May 1970] 12625/71 Heading C2C [Also in Division A2] Esters of partially acetylated tartaric acid with partial glycerides of one or more saturated fatty acids (14-22 C), monoglyceride content 55-65% and iodine number below 5, which contain 0À91-1À8 mol of tartaric acid residues and 1À8-3À4 mol of acetic acid residues per mol of partial glcyeride are prepared by reacting the partial glyceride with (a) at least partially acetylated tartaric acid or an ester-forming derivative or (b) tartaric acid or an ester-forming derivative thereof under acetylating conditions to form solid, free flowing pulverulent products. Diacetyltartaric anhydride and tartaric acid, or mixtures of diacetyl tartaric anhydride and monoacetyl tartaric anhydride or solutions of diacetyltartaric anhydride and monoacetyltartaric anhydride in acetic acid may be used to react with the partial glyceride. The products may be used as baking emulsifiers.
Patent GB-403951-A (GB)
Title: A pump with selecting device for liquids
IPC: F04B9/14
Filed: 1932-05-03
Abstract: 403,951. Dispensing liquids. LACYHULBERT & CO., Ltd., and LONDON, A. G., Boreas Works, Beddington, near Croydon. May 3, 1932, No. 12669. [Class 102 (i).] In apparatus for dispensing liquids, of the type in which a selector-valve controls suction from several containers, a disc valve 14, arranged at the bottom of the pump cylinder 4 and operated by a handlever 19a, has a port 15 which can register with one of several suction passages 2 and a port 16 which can register with the discharge passage 13. The valve is held in the desired position by a detent 23. The piston 5 is provided with a check valve 17, which permits the escape of air but prevents the passage of liquid. The piston is operated by a link 9 from a lever 8 on a spindle 7, which is oscillated by a hand-lever 6. The cylinder is provided with an opening closed by a transparent cover 25.
Patent GB-583174-A (GB)
Title: Process for the production of new and improved resinous products
Filed: 1943-08-06
Abstract: The polymers obtained by polymerizing carbon monoxide with a compound having ethylenic unsaturation as described in Specification 583,172 are heated with an aldehyde substance alone or with a urea, phenol or secondary amine.  Aldehyde substances specified are formalin, paraformaldehyde, trioxane, hexamethylene tetramine, formals, acetaldehyde, propionaldehyde, benzaldehyde and furfuraldehyde.  The ureas are substances of the formula RNH-C.R1NHR2, where R1 is oxygen, nitrogen or sulphur and R and R2 are hydrogen, alkyl, aralkyl, aryl or cyclohexyl radicals, e.g. urea, thiourea and melamine.  Phenols specified are phenol, cresol, xylenols, thymol, resorcinol, thiophenol and thiocresol.  The amines are of the formula RNH.R1, where R and R1 are hydrogen, alkyl or aryl radicals, e.g. diethylamine.  The reaction may be conducted in the presence of liquid media, e.g. water, methanol, ethanol, propanol, isopropanol, butanol, isobutanol, dioxane and cyclohexanol, and alkaline catalysts, e.g. sodium, potassium, barium or calcium hydroxides, sodium or potassium carbonates, sodium, barium or calcium bicarbonates, sodium or potassium borates, phosphates or acetates, pyridine, quinoline and trimethyl- and triethyl-amines.  Pressure may be employed.  The products are thermosetting and may be used in making coating and impregnating compositions, adhesives, cast and moulded articles. Fillers such as wood flour, cotton, mica, chalk and lithopone may be added.  Certain of the products are soluble in pyridine, acetic acid, dioxane, ethanol and water.
Patent GB-676630-A (GB)
Title: Improvements in thermionic valve arrangements
IPC: H01J25/36
Filed: 1949-05-12
Abstract: 676,630. High-frequency discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 12,1949 [June 12, 1948], No. 12732/49. Class 39 (i). An ultra short wave amplifying valve circuit arrangement comprises a valve having an emitting cathode C and an anode H in the form of a delay line with an input end and an output end, the electron beam issuing from the cathode being propagated through the space between the cathode and the anode, and an electromagnetic wave injected through the input end, travelling progressively through the line, and removed through the output end of the line, wherein the cathode extends in the direction of propagation of the wave and has a length substantially equal to the distance between the input and the output of the anode, the anode and cathode being arranged coaxially, and means being provided for imparting to the electrons of the beam an oscillatory movement between the cathode and the anode. A magnetic field may be provided in the direction shown by the arrow B and an additional elec. trode P may be arranged outside the anode and connected to either a positive or a negative potential. If the electrode P is negative a positive grid may be provided between the cathode and the anode, Fig. 11 (not shown). In a modification the cathode forms the outer cylinder and the electrode P is on the axis of the cylinder; it may only be necessary to make a narrow strip of the cathode cylinder electron emissive. As before, if the electrode P is negative a positive grid may be arranged between the cathode and anode. The anode is shown in the form of a helix by other suitable forms of delay line may be used; the pitch of the helix may be varied along the tube to make the valve more asymmetrical and prevent selfoscillation.
Patent GB-620564-A (GB)
Title: Improvements in or relating to roller thrust bearings
IPC: C13B20/14
Filed: 1944-07-05
Abstract: 620,564. Roller bearings. ABLETT, C. A. July 5, 1944, No. 12795. [Class 12 (i)] In a roller thrust bearing with roller bearing elements each composed of a plurality of short cylindrical rollers d radially arranged in one or more separate concentric annular sections e, f, g of the cage, the thrust flanges b, c of the shaft and abutment'member are provided at the level of each annular section of the cage with race rings m carried on such flanges in seatings of curved section conforming to the curved back of the race rings, thereby to allow slight bending or twisting of such race rings m under load so as to maintain full contact with the rollers. The cage is centrally supported by journal bearing rollers h situated directly between the shaft a and the innermost periphery of the cage. The various sections of the cage are divided to permit assembly round the shaft and the whole set is secured by a cover ring k, the line of division of which is displaced. An even loading at full load is achieved by making the short thrust-taking rollers of a slightly larger diameter in the successive outward rings; the flanges are slightly deflected under load, whereby all the short thrust-taking rollers come into contact with their race rings m. Alternatively, the race rings m may be axially stepped towards each other at the radially outward levels', or the shaft and abutment flanges may be supported, the one peripherally and the other centrally, whereby the gap though deflected remains uniform in width. A marine propellershaft thrust block would comprise a plurality of shaft flanges and fixed flanges with interposed thrust-roller cages asabove. Specifications 620,606 and 620,607 are referred to.
Patent GB-723528-A (GB)
Title: Improvements in yieldable pit props
IPC: E21D11/20
Filed: 1951-05-31
Abstract: 723,528. Pit props. AKT.-GES. FUR VERWERTUNG UND INVESTITIONEN. May 31, 1951 [Dec. 31, 1948], No. 13003/51. Class 20 (2). A pit prop comprises channel irons 8, 9 as described and claimed in Specification 690,030 clamped together to allow longitudinal relative sliding under load. The clamp comprises hooks 10 engaging the edges of the channel iron 8 and connected together by a bolt 11 carrying an eccentric 12 acting on the channel iron 9 and operated by a lever.
Patent GB-474915-A (GB)
Title: Improvements in method of and apparatus for applying closures to bottles or like containers
IPC: B67B5/00
Filed: 1936-05-09
Abstract: 474,915. Applying closures to bottles. GLUNZ, H. F., and McMULLEN, R. May 9, 1936, No. 13198. [Classes 125 (ii) and 125 (iii)] Bottles &c. 12 are positioned to receive flat sealing cap blanks 13, which are rendered adhesive by heat and the blanks are crimped thereon by an elastic member 22 operated by fluid pressure. Valve controlled supply and exhaust pipes 24, 25 operate the member 22 after a cap blank has been located on a bottle by the spring pressed member 17, before the bottle is raised to the sealing position shown in Fig. 4. A series of radial fingers in the capping-head causes the blank to be lapped as shown in Fig. 7. Materials such as that sold under the Registered Trade Mark " Cellophane," waxed and paraffined paper and paper coated with cellulose acetate may be used to form the blanks. Hot air or steam is employed as the pressure medium.