baber/WOPTO huggingface dataset:
Patent GB-885038-A (GB)
Title: Improvements in and relating to the production of acrylic acid esters
IPC: C07C51/14
Filed: 1959-03-25
Abstract: Acrylic acid esters are obtained by reacting acetylene with carbon monoxide and an alcohol at elevated temperature and pressure in the presence as catalyst of a complex combination of a nickel halide and an organic phosphorus-sulphur containing compound containing a pentavalent phosphorus atom having a thiono radical attached thereto. Specified organic phosphorus compounds are compounds of the general formula <FORM:0885038/IV (b)/1> wherein the X's represent R, R1, R11, RZ, R1Z or R11Z wherein R, R1 and R11 represent unsubstituted or substituted alkyl radicals containing up to 22 carbon atoms or unsubstituted or substituted aryl radicals, Z is an oxygen atom, a sulphur atom or an amido radical (-NH-or -NR111- in which R111, is an alkyl radical containing up to 22 carbon atoms) or R1Z and R11Z when taken together represent a cyclic dioxa nucleus of the formula <FORM:0885038/IV (b)/2> wherein the two oxygen atoms are connected to the phosphorus atom of the pentavalent phosphorus of the <FORM:0885038/IV (b)/3> and wherein the carbon atoms of the dioxa nucleus have their valencies satisfied by hydrogen atoms or other radicals. Specified compounds of the above formula are organic phosphine sulphides, organic thiophosphates, organic thiophosphonates and organic thio-phosphinates and a list of compounds is given including some containing chlorine, nitro and amido groups, respectively.  Suitable reaction temperatures are from 90 DEG C. to 250 DEG C. and it is preferred to work at pressures exceeding 100 p.s.i.g., e.g. at from 400 p.s.i.g. to 500 p.s.i.g.  The nickel halide and the organo-phosphorus compound are preferably used in equi-molar proportions, and the reaction may be carried out batchwise or in a continuous manner.  The catalyst complex may be prepared by admixing a nickel halide, e.g. the bromide, chloride, fluoride or iodide, with the organophosphorus compounds, or by adding the organophosphorus compounds to the alcohol reactant used in producing the acrylic ester and then adding the nickel halide, or the reverse order of addition may be used.  Specified alcohols include ethanol, pentanol, 2-ethylhexanol, dodecanol, 3-ethyl-2-pentanol, and ethylene glycol monomethyl (or monoethyl) ether.  Examples are given for the production of ethyl acrylate using a complex combination of nickel bromide with tribenzyl tetrathiophosphate, 2-butyl-mercapto-5-ethyl-4-propyl-2-thiono - 1, 3, 2 - dioxa - phosphorinane, 2, 4 - dioxa - 5 - methyl - P - methylamido - P - thiono - 3-phosphobicyclo [4,4,0] decane and tri-(2-chloropropyl)-thiophosphate respectively as catalyst. Reference is also made to the production of the propyl and butyl esters of acrylic acid using a complex combination of nickel bromide and 2 - butylmercapto - 5 - ethyl - 4 - propyl - 2 - thiono-1,3,2-dioxaphosphorinane as catalyst.  Specification 885,037 is referred to.
Patent GB-861816-A (GB)
Title: Improvements in or relating to foundation piles and the like
IPC: E02D5/54
Filed: 1958-03-31
Abstract: 861,816. Pile anchors. KONDRATSKY, N. March 31, 1958 [June 4, 1957], No. 10290/58. Class 68(2). A device for increasing the load bearing capacity of a pile comprises. a base plate 2 and 21 and at least one bracket 4. The part 2 of the baseplate is secured to a pile 1 and while the pile is being driven the device occupies the position shown in Fig. 1. When the pile reaches the required depth the bracket 4 is pulled by a bar 6 engaged in a notch 5 and the lower part of the device hinges about the thin section 3 to the position shown in Fig. 2. The slot 5 is now directed upwardly and the bar 6 may be removed. An upward force on the pile may be resisted by leaving the rod 6 attached to the bracket and anchoring the remote end.
Patent GB-1443646-A (GB)
Title: Sound-absorg
IPC: E04B2/74
Filed: 1974-03-07
Abstract: 1443646 Sound absorbing panels; suspended ceilings G D MAIBACH 7 March 1974 [20 March 1973] 10373/74 Headings E1B E1J and E1W The shells of sound absorbing panels for forming walls, ceilings suspended ceilings or doors have apertures 12, 12' and 12" on at least 3, and preferably 5 faces, the apertures receiving dowel like connecting elements 13 for connecting the panels to form walls and ceilings. The panels which are made of plastics or metal have an apertured sound absorbing front wall 3 backed by low density e.g. rock wool panel 28 and a sound reflecting rear wall backed by a plaster panel 34. The connecting elements are moulded in synthetic plastics and may have saw-toothed profile and/ or may be slotted and receive an expanding mandrel in a through passage. The apertures in the side faces may be formed by the ends of tubes passing through the panels, and one tube or bracing rods within several tubes may pass through several panels. The panel assemblies may be additionally braced by fish plates which have apertures through which the connecting elements or tubes pass. The fish plates may also have apertures receiving hooks for suspending the panels from hooks suspended from a structural ceiling. Fillets 11 of insulating material are received in channels 9 and 10 in the edges of adjacent elements. In a ceiling these channels may receive load bearing stiffening members. The panels may also be suspended from a ceiling by engaging modified connecting elements 13 in channels fixed to the ceiling. A window frame for double glazing may be mounted in the wall using connecting elements 13. A door may be assembled from a plurality of the panels interconnected by through-passing tubes and held together by fish plates.
Patent GB-414999-A (GB)
Title: Hand controlled power rammer
IPC: E02D3/061
Filed: 1934-04-06
Abstract: 414,999. Road rammers. DORNFELD, R., 30B, Obere Beutaustrasse, and HAAGE, K., 8, Turmstrasse, both in Esslingen, Germany. April 6, 1934, No. 10409. Convention date, Dec. 5, 1933. [Class 124.] The axis of the ram piston c is inclined to the normal to the ramming face so that when the casing a is raised by the admission of pressure fluid, or the explosion of the combustible gases, this casing follows a parabolic path so as to move progressively along the work. The ram foot d is retracted into the recess g by a spring before the whole apparatus falls to strike the blow. A handle p pivoted to the casing enables the ram to be guided.
Patent GB-1032744-A (GB)
Title: Improvements relating to ceramic articles and methods of producing same
Inventor: ISHERWOOD THOMAS HENRY
IPC: C04B35/65
Filed: 1962-03-20
Abstract: Ceramic articles are formed by mixing particles of one or more metallic oxides with particles of a metal which reacts autothermically with said oxide, compacting the mixture to the required shape, supplying heat at a sufficiently high rate to initiate an autothermic reaction in which a compound of non-stoichiometric composition exhibiting a defect structure is formed and thereafter subjecting the article to a continuing heat treatment in an oxidizing atmosphere at a temperature and for a time sufficient to modify the chemical composition and hence the degree of non-stoiciometry and the defect structure in one or more zones of the article to the extent that the latter exhibits different mechanical properties in different zones.  Metallic oxides specified are chromite, ilmenite, brookite, magnesite, mullite, silimanite, petalite, clays, titania, silica, alumina, chromia, zinc oxide, iron oxide and calcia.  Metals specified are aluminium, magnesium, calcium, iron, zinc and chromium.  The mixture may include diluents, e.g. silicon carbide and temporary binders, e.g. core oil, cellulose ether and liquid lye.
Patent GB-106825-A (GB)
IPC: B41L47/46
Abstract: 106,825. Brayer, A. de. May 31, 1916, [Convention date]. Addressing - machines; stencilling; rotary machines; printing-surfaces. - Relates to means for printing series of addresses or like matter on continuous strips of paper, or on sheets or envelopes &c., and comprises a continuous printing- band, either a stencil or for surface-printing, which is unwound from a roll, printed from by pressing it against the strip or sheets to be printed, and re-wound on a winding-roll. In the case of a stencil band, ink is applied to the rear of the strip during the impression by the pressure roller or by an ink ribbon which may be wound with the stencil band; and in the case of a surface-printing band, damping and inking-apparatus act on the surface before the impression. The printing-band 2, Fig. 2, is formed by securing together end to end a series of separate address slips cut from a wider strip on which they had been typed or written one under another. The strip may be stencil or autographic paper, and the edges may be strengthened to form reinforced ends a which may be connected together by gumming or by clips &c. Figs. 3-6 show machines of known type for printing from the strips, such machines not being claimed independently. As shown in Fig. 3, the band 2 is a stencil and is coiled, together with a protecting-strip 3 to prevent soiling of the surface of the band, on a roll 1, from which it is fed round an inking impression roller 8 and is rewound with the strip 3 on the roll 1<1>, the strip 3 passing round a guide-roll 15. The paper strip 4 from the roll 5 is printed against the band 2 on the roll 8 by a pressure roller 7, and may be cut up into separate addresses by a cutter 12 on the roller 11, and the sheets 16 delivered over a guide 14 into a tray 13. Ink is applied to the roller 8 by inking-apparatus 9, 10, or by that shown in Fig. 4, comprising a perforated hollow cylinder 8<1> having ink applied to its inner surface by inkers 9<1>, 10'. In the arrangement shown in Fig. 5, a stencil band 2, ink ribbon 17, and protecting-strip 3' are fed from the roll 1 between pressure rollers 7, 20 and are re-wound on the roll 1<1>. Sheets or envelopes &c. 18 are fed by hand or otherwise from a table 19 and are delivered on the tray 13. This machine may be used to print a strip as in Fig. 3; and the machine shown in Fig. 3 may be adapted to print sheets as in Fig. 5. In the arrangement shown in Fig. 6, an autographic printing-band 2<1> is employed, and is passed with the protecting-strip 3<1> from the roll 1 to the roll 1<1> as described. Its surface is damped by the apparatus 21, 22, and is inked with greasy or lithographic ink by the rollers 10, 9 acting against the pressure roller 24, against which the paper strip or sheets 4 are pressed by the roller 7. The strip may be cut into sheets 16 as previously described.
Patent GB-636212-A (GB)
Title: Improvements in or relating to amplifiers for voltages or currents of zero or low frequency
IPC: H03F3/36
Filed: 1947-04-22
Abstract: 636,212. Valve amplifying circuits. MORTON, C. April 22, 1947, No. 10695. [Class 40 (vi)] In a push-pull thermionic amplifier the output is rendered substantially independent of inphase disturbances by adjusting the ohmic values of negative feedback resistances associated with one or more of the valves in such a manner that the equation M1/M2=(1/Á1+alpha1) / (1/Á2+alpha2) is satisfied, where M1 and M2 are the respective ratios of the change in input voltage to the change in supply voltage which will produce an equivalent change in output voltage, alpha1 and alpha2 are the fractions of output voltage fed back to the input circuit, and Á1 and Á2 are the gains of each of the two amplifiers in push-pult. As shown in Fig. 2, the cathode resistances r1 and r2 of the valves V1 and V2 are connected together and earthed at their junction, a load ro, which may consist of a low resistance ammeter in series with a tapped resistance, being connected across resistances r1 and r2. The anodes are connected direct to the positive side of the high tension supply Vb, a potentiometer across Vb providing independently adjustable grid bias voltages. As a preliminary adjustment the load current io is adjusted to zero, and application of the input voltage E to the grid of V1 causes antiphase voltages to appear across resistances r1 and r2. An increase in the voltage of the power supply will cause inphase voltages to appear across r1 and r2, and if the valves are perfectly matched the zero adjustment of the measuring instrument will be undisturbed, but with imperfectly matched valves the zero setting is stabilized by adjusting the ratio r1/ro, or r2/ro, or both ratios. An expression is derived showing that the feedback may be varied from zero to 100 per cent by adjusting the load-resistance ro. Fig. 4 shows a modification in which the input E is applied to the grid of the valve V1 in series with the opposing voltage derived from resistance r1, the amplified voltage across the anode resistance R5 being applied by means of the potential divider R3, R1, to the grid of the valve V3 and further amplified. The resulting load current io, in flowing through resistance r2, produces an antiphase voltage which is applied to the grid of the valve V2, and the amplified voltage across the anode resistance R6 is applied through the potential divider R4, R2, to the grid of the valve V4 for further amplification of the voltage across the load ro, being the sum of the voltages across r1 and r2. Inphase disturbances set up across r1 and r2 are eliminated by adjusting the ratios r1/r2, R3/R1, and R4/R2. The method of compensating for inphase disturbances is also described with reference to two known types of push-pull amplifiers, Figs. 1 and 3 (not shown).
Patent GB-130946-A (GB)
Title: Improvements in Apparatus for the Transference of Fluids.
Inventor: CROW HENRY WILFRID
IPC: B67D1/08
Filed: 1919-04-30
Abstract: 130,946. Crow, H. W. April 30, 1919. Gas distribution systems.-Apparatus for transferring fluid from any one to any other of a system of receptacles comprises a number of pipes S each connected to one of the receptacles and having their terminals B, B<1>, B<2> arranged around a table A, so that they can be coupled by means of rotary arms C, D, to loop pipes E, F, the terminals B<3>, B<4> of which are directly connected by a bridge piece G<1> or are connected by bridge pieces G, H respectively to the suction and delivery pipes of a pump O. A number of such tables may be used, additional junction pipes being provided to connect terminals on different tables.
Patent GB-328762-A (GB)
Title: Improvements in or relating to photographic films or plates
IPC: G03C1/46
Filed: 1929-04-08
Abstract: 328,762. Kodak, Ltd., and Lawrence, P., (Executrix of Lawrence, J. H.). April 8, 1929. Roll-film cartridges.-Upon and in contact with the sensitive surface of a roll film is superimposed a second transparent support which carries a reversal sensitive emulsion, and is separable after exposure from the main plate or film for independent treatment by reversal to produce a positive proof of the negative which will subsequently be produced by developing the main film. The sensitive layer on the second support may be a thin, transparent emulsion. The two emulsions are preferably placed in contact, and their supports are held together at the margins, as by adhesive, or binding strips. Transverse perforations may be formed in the second support in order that this may be separated from the main length of film either as a whole, or exposure by exposure.
Patent GB-772382-A (GB)
Title: Rotary impact tool with inertia responsive torque control
IPC: B25B23/145
Filed: 1955-04-15
Abstract: 772,382. Screwing-up and unscrewing nuts &c. CHICAGO PNEUMATIC TOOL CO. April 15, 1955 [April 26, 1954], No. 10894/55. Class 83 (3). [Also in Groups XXIV and XXXVII] An impact-tool comprises an anvil 38, a rotatable shaft 31 having intermittent rotarymovement together with the hammer 57, and driving a flywheel 95 through a flexible-connection, and automatic means to discontinue rotation of the hammer responsive to relative movement between the flywheel and shaft due to sudden deceleration of the latter. The toolbody comprises a clutch-housing 18 having a radially-extending handle, a motor-housing 19 and a control-housing and handle 20. The direction of rotation of the pneumatic-motor 23 is controlled by a lever 36 and valve 35. The motor rotates a cam 44 engaging a pivoted member 57P carrying a double-headed hammer 57R, 57L engaging the anvil 38 on the toolholding shaft 39. When resistance to rotation occurs, the hammer swings about the pivot 56 and, as shown in Fig. 5, rotates about the anvil until an impact occurs as the faces 57S, 41 meet. The impact causes rotation of the flywheel 95 relatively to the motor-shaft 31. The flywheel is connected to the shaft by balls 98 in co-operating grooves with helical faces 97R, 99R in the flywheel and in a cam-sleeve 93 axially-movable on the shaft. When an impact is of sufficient duration and force, the flywheel causes the sleeve 93 to move axially to stop the motor by releasing a trigger 87 holding open an air-supply valve 66. Axial movement of the sleeve is resisted by a spring 101 adjusted by a screw 106 against a torque-setting dial. The trigger is re-set by releasing the starting-button 64 so that a spring 81 can return the valve 66 to its lowest position. In a modified tool, the flywheel itself moves axially at each impact. Modifications may be made in the helical faces of the grooves containing the balls 98 so that the motor will be cut-off by a lower impact when screwing-up than when unscrewing. Alternatively, one face of the groove may be of zeroangle, so that the automatic cut-off is not actuated and the loosening of a bolt is manually controlled. The tool may be of the accumulator-type, the flywheel then being driven by a spindle &c. which starts and stops with the hammer, instead of by the motor. It may also be electrically-driven so that the torque-control actuates a switch instead of a valve. Specification 619,796 is referred to.
Patent GB-1489141-A (GB)
Title: Lead-acid batteries
IPC: H01M4/68
Filed: 1975-03-17
Abstract: 1489141 Lead based alloys GOULD Inc 17 March 1975 [11 Oct 1974] 10981/75 Heading C7A [Also in Division H1] In a lead-acid battery, the positive and negative electrode grids are each formed from a ternary lead base alloy, the positive electrode grids consisting of lead, 1À0 to 2À0 wt. per cent antimony and 1À2 to 2À2 wt. per cent cadmium, whilst the negative electrode grids consist of lead, 0À06 to 0À20 wt. per cent calcium and 0À10 to 0À40 wt. per cent tin. The cadmium is present in an amount at least equal to the amount of antimony. The alloy is produced by adding the alloying constituents to the molten lead and then mixing until the mass is homogeneous. The grids are then cast in moulds.
Patent GB-1104250-A (GB)
Title: Improvements in or relating to epicyclic two-speed transmissions
IPC: B23Q1/25
Filed: 1966-03-14
Abstract: 1,104,250. Epicyclic gearing. J. PRODEL. 14 March, 1966 [31 Dec., 1965], No. 10991/66. Headings F2D and F2E. [Also in Division B3] An auxiliary drive unit for a machine tool table comprises a variable-speed hydraulic motor H driving the input shaft 23 of a threeelement epicyclic gear 25, the output shaft 27 of which is coupled directly to the feed screw, the gear unit being controlled by a disc clutch 35 and brake 38 including means to limit the engaging force during normal drive. As shown, the end of input shaft 23 is formed with a pinion 24 meshing pinion 34 of a stepped planet, the other portion 33 of which meshes an annulus 30. The planet carrier 31 carries the clutch 35 adjacent a plate 29 carrying the brake 38, an annular actuator 41a in an end plate 28 being supplied with pressure liquid through a pipe 28c. The gear is supplied by a pump unit (20, 21), Fig. 4 (not shown), and distributers (44, 45, 46) controlled by a programming unit (P), which for normal drive supplies liquid to the motor H but not to actuator 41a, shaft 27 being driven through the epicyclic train. Under these conditions clutch 35 is free and the engaging force of brake 38 is limited by loading springs 54a mounted between an axial bearing 57 and an end plate 60 connected to shaft 27 by a pin 61, the spring loading being adjustable by an axial screw 62. For high-speed running the programmer supplies liquid to motor H and actuator 41a so that plate 29 engages clutch 35 and the gear unit is locked solid for direct drive. In a second embodiment, Fig. 2 (not shown), the brake loading springs are non- adjustable and are mounted adjacent the outer periphery of clutch 35.
Patent GB-143015-A (GB)
Title: Improvements in internal combustion turbines
IPC: F02C7/18
Filed: 1919-05-05
Abstract: 143,015. Bollins, F. E. May 5, 1919. Working-fluid supply.-In an internal-combustion turbine, one end of the combustion chamber k, into which a gas and air mixture is forced by a piston n<4> actuated from a crank-shaft r<2> driven by worm gearing from the turbine shaft f, is constituted by a mushroom valve h controlling ports c<4> communicating with the ring blades a<6>, e<4>. The valve h is closed by extension springs i and is opened by a sliding rod h<4>, which is struck by the forked end of a lever t rocked by a cam r<3>, Fig. 4, on the shaft r<2>. The turbine is started manually from a shaft 8<3> geared at 8<2>, s to the shaft f, a starting-piece u being inserted between the lever t and the projecting end of a rod j<3> which operates a valve j controlling a port j<4> communicating with the ports c<4>. By this means, the valve j is opened prior to the main valve h to reduce the compression of the charge, the starting-piece u being removed when the turbine is running. Cooling parts.-The end o<5> of the drum is formed in Venetian-blind fashion, and cooling-air is drawn through the spaces o<2>, o<3> in the interior of the drum by the suction, through ports o in the walls of the drum, of the exhaust gases passing to the exhaust m. The blades e<4> may be cooled by providing them with copper insertions projecting into the cooling-space o<2>.
Patent GB-823914-A (GB)
Title: Improvements in penicillin-sulphonamide tablets
Inventor: MILLAR JOHN FRASER
IPC: A61K9/24
Filed: 1958-04-08
Abstract: A penicillin-sulphonamide tablet comprises a core containing a granular mixture of penicillin, or a penicillin salt, at least one substantially water-insoluble sulphonamide drug, and ammoniated polyvinyl acetate phthalate, and a concentric outer shell containing conventional excipients and the same therapeutic agents.  The core contains at least half (e.g. 60% to 95%) of the total penicillin and less than half (e.g. 10% to 35%) of the total sulphonamide.  The ammoniated polyvinyl acetate phthalate may have a degree of polymerization of 600 to 800, an acetyl content of 4% to 15% and a phthalyl content of 40% to 70%, the amount used being 5% to 20% (preferably 8% to 10%) of the total core weight.  A process for making the tablets is described.  An example of a tablet given contains as the core, sodium penicillin G 18 mgm. (30,000 I.U.), sulphadiazine, sulphamerazine, sulphathiazole 26.7 mgm. of each, corn starch 6 mgm, ammoniated polyvinyl acetate phthalate 9.6 mgm., magnesium stearate 1.4 mgms.; and as the shell, sodium penicillin G 12 mgm. (20,000 I.V.), the sulphonamide, 56.6 mgm. of each, calcium citrate 90 mgm. corn starch 19 mgm., sodium carboxy methyl cellulose (of high viscosity) 3.3 mgm., magnesium stearate 2.7 mgms., and polyvinylpyrrolidone as binder.  Examples of other sulphonamides given which may be used are: sulphapyridine, sulphamethazine, sulphanilamide, sulphaguanidine, sulphacetamide, sulphisoxazole, sulphadimetine.