baber/WOPTO huggingface dataset:
Patent GB-838277-A (GB)
Title: Photographic camera with a flash guide number setting device arranged on the objective
IPC: G03B17/02
Filed: 1958-10-07
Abstract: 838,277. Camera objective with flashguide setting devices. AGFA A.G. Oct. 7, 1958 [Oct. 15, 1957], No. 32020/58. Class 98(1) A camera objective has a rotatable distance-setting ring. and, adapted to register therewith, a separately rotatable ring carrying flash guide numbers and aperture numbers; means coupled to said first ring indicate on said second ring the required aperture when the appropriate distance and guide numbers are set in register. In Fig. 1 the distance-setting ring 15 is transparent, and located above a stepped depth of focus indicator marking 2. Adjacent ring 15 is a second ring 6 carrying graduations which indicate both guide numbers and aperture settings. Over ring 15 is a transparent ring 10 having two indicator windows 11. 12, and coupled to ring 15 by lugs 13, so that rings 10 and 15 rotate together. To determine the aperture for a particular guide number and distance, the distance on ring 15 (e.g. 5 metres as shown on Fig. 1) is set to the index mark 18. Ring 6 is rotated to bring the appropriate guide number (e.g. 20 as shown) to the same mark 18. The corresponding aperture value then appears in the window 12 of ring 10 (i.e. 4), and this value of f4 is now set by means of the aperture-setting ring 3. Aperture values up to 10 are shown in window 12. while values from 10 upwards are shown in window 11. To facilitate reading, the two-figure numbers shown on ring 6 have each figure differently coloured, so that for example the two figures 4 and 0 can be read as 4.0 or 40 according to whether the number appears in window 12 or window 11.
Patent GB-801088-A (GB)
Title: Improvements in or relating to key-operated machines such as typewriters, calculating machines and tabulating machines
IPC: B41J25/02
Filed: 1956-10-22
Abstract: 801,088. Typewriters &c. TRIUMPH WERKE NUERNBERG AKT.-GES. Oct. 22, 1956 [Oct. 28. 1955], No. 32030/56. Class 100(4) In a power-driven key-operated typelever machine individual and/or repeat stroke operation for all keys in the bank may be engaged from one position. On depressing lever 20, Figs. 1, 3, for single stroke operation, lever 2, Fig. 1, is pushed down by flange 26, Figs. 1, 3, of member 26 bringing member 3 into contact with power roller 1. Type lever 19 is thus moved to the platen by linkages 2, 5, 10, 13, 16. The point of cam 28 describes a loop 28<1> during this operation, and on returning to its original position pushes catch 24 anticlockwise so that further strokes are prevented even if lever 20 is still held down. For repeat strokes, a lever 37, Fig. 3, is moved to adjustable stop 35, rod 39 turns frame A, to which it is attached, by spring 45, clockwise, freeing catdh 41 to rotate clockwise and engage catch 73 with notch 72. Simultaneously, rod 48 turns all the catches 24 anti-clockwise so that their flanges 27<1>, Fig. 1, are above cams 28 of levers 20. When levers 20 is depressed flange 27' initiates the printing cycle already described. Repeat strokes continue until lever 20 is released, since cam 28 cannot push catch 24 to the right but instead slides down the sloping face of flange 27<1>. Depression of key 20 also turns eccentric shaft 49 clockwise moving catch 61 on to stop 69 and disengages catch 41 by means of flange 66; frame A thus remains held as before. When key 20 is released repeat strokes cease, catch 61, shaft 49 and frame A are turned anti-clockwise by springs, and levers 39, 32 are returned to their original positions, resetting the machine for single stroke operation. Catches 24 may be replaceably carried by key levers 20 so as to be replaced by catches designed for single stroke operation.
Patent GB-757228-A (GB)
Title: Improvements in or relating to mechanical milking equipment
Inventor: CLARK THOMAS LESLIE
IPC: A01J5/04
Filed: 1953-11-20
Abstract: 757,228. Cow-milkers. ALFA-LAVAL CO., Ltd. Nov. 22, 1954 [Nov. 20, 1953; Jan. 18, 1954], Nos. 32229/53 and 1431/54. Class 84. An operating cover for a milk receiver in a mechanical milker comprises a cover 1 formed as a stainless steel disc having mounted upon it a connecting member 2 of cup form with resilient sealing means 3. A further gasket 4 provides seal for the pulsator 5 and the whole assembly is clamped together by a screw 6 on the handle 7 of the milk pail. A check valve 8 is provided and has a flange 8b to limit its lifting movement and thus prevent accidental removal. The check valve is of moulded rubber and fits in the member 2, a number of spaced radial openings being provided in the seating. A hollow-stemmed valve with radial apertures could be substituted in which case the radial openings in the seating are unnecessary. The connecting member 2 may be a tube and may fit on a raised portion of the cover which would function as the check-valve seat. A sight glass and milk cock (as disclosed in Specification 738,859) are provided. Specifications 757,227 and 757,288 also are referred to.
Patent GB-1092610-A (GB)
Title: Process for the preparation of vicinal episulfides
IPC: C08G75/06
Filed: 1966-07-18
Abstract: Alkylene sulphides are prepared by reacting at least one alkylene oxide with at least one sulphur donating compound which contains bivalent sulphur, and is gaseous under the reaction conditions, in the presence of a Lewis base catalyst dissolved in an organic solvent.  The alkylene oxide starting materials are preferably compounds of general formula <FORM:1092610/C2/1> wherein R, R1, R2 and R3 may be the same o different and represent H atoms, aryl groups or linear lower alkyl or cycloalkyl groups of up to 10 carbon atoms. The sulphur-donating compound is preferably COS or CS2. Preferred catalysts include NaF, NaI, KI, LiCl and MgO. The reaction may be carried out by dissolving the catalyst in an organic solvent, adding a free halogen or halogenater organic compound to the catalyst system and passing a gaseous mixture of alkylene oxide and sulphur compound in the molar ratio of between 1:0.2 to 1:10 through the liquid bed catalyst at temperatures between 100 DEG  and 300 DEG  C. and at pressures between 5 mm. Hg and atmospheric.
Patent GB-986085-A (GB)
Title: Improvements in or relating to liquid separation equipment
IPC: E02B15/04
Filed: 1963-08-15
Abstract: Drums rotatable about horizontal axes around a confined space (e.g. rectangular or triangular in plan) perform one of two functions: one kind of drum collects oil from the surface of water just within the space, and feeds it to the centre of the space, while the other kind picks up the oil from the more concentrated body of liquid thus formed in the centre of the space, and has it scraped off into a trough for recovery.
Patent GB-911116-A (GB)
Title: Improvements in or relating to nuclear particle discriminators
Inventor: EGELSTAFF PETER ALFRED
IPC: G01T1/208
Filed: 1960-09-20
Abstract: 911,116. Transistor circuits. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Sept. 8, 1961 [Sept. 20, 1960], No. 32355/60. Class 40 (6). [Also in Group XL (b)]- In a nuclear particle discriminator, negative pulses from the photomultiplier tube PM which together with the phosphor pH comprises a scintillation counter (see Group XL (b)) are amplified by the wide-band amplifier J1, J2 having feed-back paths from J2 collector to J1 emitter and from J2 emitter to. J1 base. The amplified output is applied to the base of transistor J3 through the delay line DL and to the base of transistor J4 direct, the transistors J3 and J4 forming a coincidence circuit operative when the pulses to the bases of J3 and J4 overlap.
Patent GB-818641-A (GB)
Title: Improvements in a dampener roll used in lithographic printing
Inventor: HUBBARD BRUCE WATSON
IPC: B41N7/04
Filed: 1956-10-25
Abstract: 818,641. Rollers. IDEAL ROLLER & MANUFACTURING CO. Oct. 25, 1956, No. 32570/56. Class 42 (2). [Also in Groups XVI and XXIV] A plate dampener roller for use in a lithographic machine comprises a yieldable base around which is wrapped a vegetable parchment paper covering. The roller may be made of rubber 21 bonded to a shaft 28 and the parchment paper 32 may be in the form of a long strip wound helically round the roller, as in Fig. 6, or a rectangular piece wrapped with its long edge parallel to the axis of the roller. The paper is wound on to the roller whilst it is wet and need not be secured to the roller at its leading edge. If the roller is then rotated whilst in contact with a steel roller, the overlapping parts of the paper become so matted together that a smooth surface is produced at the joint and the overall dimensions of the roller are sufficiently uniform to coact with the resilient rubber base in providing contact at all times with the surface of the plate during actual printing. If the paper is wound helically it is trimmed at each end of the roller and secured there on reduced portions 34 of the roller by adhesive tape or rubber bands.
Patent GB-674631-A (GB)
Title: Improvements in or relating to buckles for clamping straps, tapes and the like
IPC: A44B11/10
Filed: 1948-12-16
Abstract: 674,631. Buckles. SPENCER (BANBURY), Ltd. (Berger Bros. Co.). Dec. 16, 1949 [Dec. 16, 1948], No. 32622/48. Class 43. A buckle comprises a frame 1 including a main cross-bar 3 against which a bar 8, slidably engaging two sides of the frame, clamps a strap, a slot 10 being g provided adjacent said cross-bar 3 for the passage of the strap after it has been passed under the slide 8 and over the crossbar 3, and means e.g. a slot 12, Fig. 3, or a hinged loop 15, Fig. 11, being provided at the end of the frame remote from the slot 10 for attaching the buckle to an article. The frame 1 is bent back at an angle of approximately 35 degrees adjacent the slot 10 to facilitate sliding of the strap through the latter. The clamping edges 6, 7 of the crossbar 3 and slide 8 respectively are scalloped, a lip 9 which extends from the edge 7 of the slide 8 being bent down to lie under the cross-bar 3 when the buckle is in use; the bar 8 is transversely arcuate, and its back edge is reinforced by bending under a narrow strip 13 thereof. The sides 1, 2 of the frame may be curved so that the buckle conforms to the curve of the body of a wearer. The parts are preferably of metal, but other rigid material, e.g. synthetic resinous material, vulcanized natural or synthetic rubber or polythene may be used.
Patent GB-287958-A (GB)
Title: Improvements in or relating to circuit arrangements and discharge tubes for amplifying electric oscillations
IPC: H01J21/02
Filed: 1926-12-24
Abstract: 287,958. Wade, H., (Naamlooze Vennootschap Philips' Gioeilampenfabrieken). Dec. 24, 1926. Vacuum tubes.-In an amplifying valve having a screening grid maintained at a high potential, means are provided for preventing the passage of electrons to the screening grid when the potential of the anode falls below that of the screening grid. As shown in Fig. 1, a valve with a control grid 2 and a screening grid 3 has a third grid 4 mounted between the screening grid and the anode 5, and maintained at a low potential by a connection with the cathode or with a battery 9. The screening grid is connected with the end or intermediate parts of the battery 9 in the output circuit. The grids may be in the form of wire helices mounted on a re-entrant foot. In the arrangement shown in Fig. 9, the third grid 4 is connected with the secondary winding of a transformer 18, the primary of which is connected between the anode 5 and the screening grid 3, so that the grid 4 is subjected to potential variations opposite in phase to those of the anode. In the valve shown in Fig. 6, the screening grid consists of strips 3 arranged radially and connected at the ends to rings 19. The anode 5 has radial partitions 15 in alignment with the strips, but wider than them. The ends of the partitions are connected to flat rings 14. The partitions intercept electrons tending to pass back to the grid 3. The control grid consists of a wire helix or parallel rings. In the valve shown in Fig. 7 the control grid consists of strips 2 securing the wires 3 of the screening grid. A third electrode 4, kept at a low potential, may be mounted around the screening grid. In another valve an anode with partitions similar to those shown in Fig. 6 has strips mounted transversely on the ends of the partitions and opposite the strips of the screening grid.
Patent GB-819064-A (GB)
Title: Improvements in or relating to pumps
IPC: F04F1/10
Filed: 1955-11-16
Abstract: 819,064. Forcing liquids by gaseous pressure. CARIGNANI, E., and GHELARDONI, A. C. N. Nov. 16, 1955 [Nov. 16, 1954 ; Nov. 18, 1954], No. 32717/55. Class 102(2). In a pumping apparatus comprising two chambers for immersion in the liquid to be pumped, the chambers being provided with inlet and outlet valves and being connectable alternately with the suction and delivery sides of an air compressor through a rotary valve, the valve comprises a hollow cylindrical body 12 with four collecting channels 15-18 two of which are connected to the chambers and two to the air compressor, a sleeve 19 fitted in the body 12 and having two sets of four parts 20-23 in parallel planes, each port communicating with one of the channels 15-18, and a rotary cylinder 24 having two ducts 25, 26 in the said planes arranged so that they may communicate with two of the ports 20-23. The circumferential extent of the ports 20-23 may be arranged to give continuous flow from the chambers.
Patent GB-866481-A (GB)
Title: Apparatus for the performance of physical and chemical processes in a liquefied layer
IPC: B01J8/34
Filed: 1958-10-15
Abstract: <PICT:0866481/IV (b)/1> <PICT:0866481/IV (b)/2> A fluidisation vessel 1, of any arbitrary cross-section and independent of size and form has grid 2 of known design. at a level a slight distance above the grid, independently of the magnitude of the particles and through-flow, heat conducting walls or plates 3 are arranged dividing the fluidisation zone into compartments 4 which are open ended but have no lateral intercommunication.  The height of the walls 3 should not appreciably exceed the height of the bed.  Gas is introduced through inlet 5 and released through outlet 6.  In Fig. 4, the heat exchange tubes 5 are connected by the said plates 3 so as to form the said compartments 4.  The heat carrier flows in through inlet 6 and issues through outlet 7.  The bed-fluidising gas flows through aperture 8 into the apparatus and flows out through aperture 9, shedding entrained bed particles back on to the bed before passing through the outlet.  In such reactors it is possible to perform processes for catalytic, oxidation, hydrogenation, or other transformations of hydrocarbons.  Other examples of reactions are the oxidation of anthracene to anthraquinone with air at a temperature of 380 DEG C. and a catalyst of vanadium pentoxide; the oxidation of naphthalene to phthalic anhydride with air up to a reaction temperature of 375 DEG C. in a vanadium/potassium sulphate catalyst; the oxidation of benzene with air to form maleic anhydride at a temperature of 535 DEG C. and the isomerisation of orthoxylene to paraxylene at a temperature of 450 DEG C.ALSO:A fluidisation vessel 1, of any arbitrary cross-section and independent of size and form, has a grid 2 of known design.  At a level a slight distance above the grid, independently of the magnitude of the particles and through-flow, heat conducting walls or plates 3 are arranged, dividing the fluidisation zone into compartments 4 which are open ended but have no lateral intercommunication.  The height of the walls or plates 3 should not appreciably exceed the height of the bed.  Gas is introduced through inlet 5 and released through outlet 6.  In Fig. 4, the heat exchange tubes 5 are connected by the walls <PICT:0866481/III/1> <PICT:0866481/III/2> or plates 3 so as to form the compartments 4.  The heat carrier flows in through inlet 6 and issues through outlet 7.  The bed-fluidising gas flows through aperture 8 into the apparatus and flows out through aperture 9, shedding entrained catalyst particles back on to the bed before passing through the outlet. The apparatus may be used in the distillation of bituminous shale.
Patent GB-1070266-A (GB)
Title: Composition for the determination of transaminase activities
Inventor: WAGENKNECHT CLAUS
IPC: C12Q1/52
Filed: 1965-08-02
Abstract: A composition for the determination of glutamic oxalacetic transaminase and glutamic pyruvic transaminase e.g. in the body fluids of animals or man comprises an a -keto-glutarate together with an aspartate (for glutamic oxalacetic transaminase) or with alanine (for glutamic pyruvic transaminase), glutamate dehydrogenase, nicotinamide adenine dinucleotide, 2:6-dichloroindophenol, phenazine methosulphate and a triethanolamine buffer of pH 7-8.5.  In the presence of the transaminase a glutamate is formed from the first two components, and this is then oxidised to a -ketoglutarate by the glutamate dehydrogenase in the presence of, and with consequent reduction of, the dinucleotide: the dyestuff system (dichloroindophenol, phenazine methosulphate) is then reduced by the reduced dinucleotide.  The materials may be separately packed in the form of the following aqueous solutions: (1) and (2) triethanolamine buffer, nicotinamide adenine dinucleotide, dichloroindophenol, aspartate or alanine (3) phenazine methosulphate, (4) glutamate dehydrogenase stabilised with glycerol and (5) a -ketoglutarate. Solutions 1, 3, 4 and 5 comprise the test reagent, solutions 2 (which has different proportions to solution 1) and 3 are used as a control. Alternatively the compositions may be impregnated into a suitable carrier, e.g. filter paper strips, and the product lyophilised.
Patent GB-1518102-A (GB)
Title: Trithiolan derivatives and lubricating compositions containing them
IPC: C10N30/12
Filed: 1974-07-25
Abstract: 1518102 Lubricants ETHYL COOPER Ltd 25 July 1975 [25 July 1974] 32976/74 Heading C5F [Also in Division C2] A lubricant composition comprises a major amount of a lubricating oil and minor amount of one or more trithiolan derivatives which have been prepared by reacting a trithiolan compound with a thiol compound in the presence of a base.
Patent GB-330072-A (GB)
Abstract: 330,072. Berry, Wiggins, & Co., Ltd., and Holmes, H. H. April 22, 1929. Bituminous compositions.-Road-making and like compositions are made by treating damp, dirty or mud coated stone or road metal with a small quantity of cold creosote or creosote oil, and then applying a bituminous cement. In an example, 5 cwt of crushed stone and one pint of ordinary creosote are mixed, and 2 gallons of bitumen beaded to 280‹ F are added. Specification 1381/07, [Class 70, Indiarubber &c.], is referred to.
Patent GB-619506-A (GB)
Title: An improved bedstead or divan
IPC: A47C23/32
Filed: 1945-12-06
Abstract: 619,506. Bed frames; mattresses. AIR CONTAINERS (LEATHERHEAD), Ltd., CHAMBERLAIN, T. B. P., and HORNETT, A. W. Dec. 6, 1945, Nos. 33031/45 and 4353/46. [Classes 52 (ii) and 52 (iv)] Adivan or bedstead has a frame of channel section of a light metal with the channel opening inwardly and the edge of the upper flange and, if desired the lower flange of the channel section being rounded, light metal legs secured to said frame and a flexible and resilient mattress, &c., carried by the frame. As shown in Fig. 1 the frame comprises longitudinal members 1, 2 and cross members 3, 4 the edges of the channel section being turned downwardly at 5, 6. The members are connected by legs 11 of the shape shown provided with rebated extensions 8, 9 which fit into, and are secured to, the members 1-4. A head board 34 and, if desired a foot-board may be provided constructed of two sheets 36, 37 of light metal appropriately connected together in spaced relation a filling of flock 38, Fig. 6, being provided. The head-board 34 may be detachably secured in position by means of members 39, secured to the interior of the head-board, &c., engaging in sockets formed by staples 35 secured to the bed frame. The head-board, &c., may however, be secured by bolts. In a modification the bed frame may comprise end members of channel form having their ends bent at right angles to meet the longitudinal members to which they are secured by butt straps. In this form the legs do not serve to connect the bed frame members and while of the same general form as shown in Fig. 1, are shorter and adapted to be secured to the lower flange of the frame members. As shown in Fig. 1 the longitudinal members 1, 2 are connected intermediately by members 15 of V formation to which springs 16 of the mattress are anchored, the springs being interconnected by links 18 which are connected to the bed frame by spring ties. A flexible cover such as wire mesh is secured to the link work and springs. Fig. 8 shows another form of mattress and comprises a series of short chains 25 diamond wise mesh 26 and tension coiled springs 30 the mattress being anchored to the lower flanges of the end members or to a central member 15 by ties 32 and springs 33.
Patent GB-420723-A (GB)
Title: Improvements in hydraulic shock absorbers
IPC: F16F9/28
Filed: 1933-11-25
Abstract: 420,723. Hydraulic shock-absorbers. BROULHIET, G., 201, Rue de Grenelle, Paris. Nov. 25, 1933, No. 33032. Convention date, Nov. 26, 1932. [Class 108 (iii)] A double-acting hydraulic shock-absorber for vehicle suspensions comprises two chambers 4, 5 in which spring-pressed pistons 6, 7 operate on movement of a rocking lever 8, the chambers being connected by one or two passages 13, flow of liquid through the passage or through each passage being controlled by a spring- pressed piston-valve 18 having an aperture 20 permittirg permanent communication between the chambers, and one or more apertures 21 which are uncovered in succession as the pressure rises in the chamber 4. In the construction shown, when liquid flows from the chamber 5 to the chamber 4 the valve 18 is closed and the aperture 20 restricts the flow, while in another construction embodying two passages 13 the flow of liquid from the chamber 5 to the chamber 4 is restricted by a second, oppositely - arranged piston - valve 18, the apertures 21 of which are smaller than those in the other valve. Leakage of liquid past the pistons 6, 7 is compensated for by spring- pressed valves 22.
Patent GB-731389-A (GB)
Title: Synthesis of alcohols from carbon monoxide hydrogen and olefins
IPC: C07C45/50
Filed: 1952-12-31
Abstract: The bottoms product obtained from the hydrogenation stage of an Oxo-synthesis is heated, preferably at 300-550 DEG  F., and atmospheric pressure with solid caustic soda to form soaps of fatty acids of relatively high molecular weight and further alcohol product boiling in substantially the same range as the desired original alcohol product, the further alcohol product being withdrawn during the coarse of heat-treatment with caustic alkali.  The caustic alkali may be added as a solution and the water flashed off.  In an illustration of suitable apparatus a C7 olefine is carbonylated in the presence of an oil-soluble cobalt salt or soap, the aldehydic product hydrogenated, distilled to yield iso-octyl alcohol and a portion which is treated with caustic in amount about 5-15 per cent of that required to react with the alcohols present, at a temperature higher than the boiling point of the desired alcohol which is distilled off as formed optionally aided by the passing of a stripping gas such as nitrogen or hydrogen.  After the reaction the residual bottoms is withdrawn and treated with water to remove soaps which may be converted to carbonylation catalyst by double decomposition with cobalt salts such as the sulphate or acetate. The catalyst so formed may be used in conjunction with organic matter, e.g. unsaponifiables, remaining in the bottoms.  Examples are provided showing the production of alcohols and carbonylation catalysts by treatment of bottoms obtained by the use of C7 olefines with caustic soda.  Specification 651,250 is referred to.