baber/WOPTO huggingface dataset:
Patent GB-1337763-A (GB)
Title: Electrolytic condensation of carboxylic acids
IPC: C25B3/29
Filed: 1971-04-19
Abstract: 1337763 Electrochemical condensation of carboxylic acids BADISCHE ANILIN- & SODAFABRIK AG 19 April 1971 [28 March 1970] 25345/71 Heading C2C [Also in Division C7]  In a process for the electrochemical condensation of carboxylic acids at a degree of neutralization of the acid of less than 20% molar, preferably less than 10% and a current density of more than 10 A/dm.<SP>2</SP>, preferably from 15 to 40 A/dm.<SP>2</SP> in a solvent using electrodes which are impermeable to liquids, the distance between the electrodes is from 0À1 to 2 mm., preferably 0À3 to 0À8 mm. and the electrolyte is caused to flow through the space between the electrodes at a rate of from 0À05 to 2 m./sec., preferably 0À1 to 0À7 m./sec. The preferred solvent for the electrolyte is methanol although water, lower alcohols or N,N-dialkylamides of lower alkanoic acids or mixtures thereof may be employed. The degree of neutralization of the carboxylic acid used may be adjusted using anhydrous sodium carbonate, sodium or potassium methylate or ethylate, potassium carbonate, triethylamine, dimethyl aminoethanol or morpholine. The electrodes have smooth surfaces and the anodes are preferably of platinum, platinumrhodium, platinum-iridium, gold or goldplatinum applied as a thin layer to a conducting substrate, e.g. aluminium refined steel, titanium or graphite. The cathode may be stainless steel or nickel. The process may be carried out batchwise or continuously. In the latter case an electrolytic cell having a plurality of plane plate-shaped electrodes in a bipolar series arrangement may be used. The distance between the electrodes may be defined by insulator strips and the length of the gap through which the reaction mixture flows is preferably between 5 and 100 cm. Temperature is maintained between 20 and 60 C. The process is described as being of interest in the synthesis of di-functional compounds from substituted alkanoic acids other than α-substituted acids, i.e. acids having substituents in the # or a more remote position. Such substituents may be ester, acylamino, acyloxy, nitrilo, halo, aryl, alkyl, aralkyl or heterocyclic groups. Particular examples of the use of the invention are the synthesis of sebacic acid ester from adipic acid half ester, of suberic acid ester from glutaric acid half ester, of thapsic acid ester from azaleic acid half ester, of 2,2<SP>1</SP>,5,5<SP>1</SP>-tetramethyl adipic acid ester from 2,21-dimethyl succinic acid half ester, of N,N<SP>1</SP>- diacetyl-dimethylene diamine from #-acetylaminocaproic acid, of 1,8-octanediol diformate 5-formyloxyvaleric acid, of decamethylene dicyanide from #-cyanocaproic acid of 1,20- dibromoicosane from 11-bromo undecanoic acid and of 1,10-dichlorodecane from #-chlorocaproic acid.
Patent GB-601326-A (GB)
Title: Improvements in and relating to vacuum chucks or work holders
IPC: B23B31/30
Filed: 1945-10-01
Abstract: 601,326. Chucks. HARRIS, C. S., and GOLD, B. Oct. 1, 1945, No. 25421. [Class 83 (iii)] [Also in Group XXIII] A vacuum chuck or workholder is provided with retractable work - gripping means adapted to be moved into operative position when the work is in position. The chuck comprises a block 3 having a chamber 6 in its rear face, from which air passages 4 extend to a work-receiving face 5 and passages 18 to an annular recess 13 in which slides a collar 12 having a tapered flange 15. On applying a vacuum, and when the work is in position to close the passages 4, the collar 12 is drawn forward to press pins 8, slidably mounted in radial apertures in the forward part of the block 3, inward to grip the work. On applying pressure air the collar is forced back and the work is released, which action is assisted by centrifugal force due to the rotation of the chuck.
Patent GB-1394865-A (GB)
Title: Clutch plate assembly
IPC: F16F15/129
Filed: 1972-05-31
Abstract: 1394865 Mounting friction clutch plates LUK LAMELLEN UND KUPPLUNGSBAU GmbH 31 May 1972 [4 June 1971] 25547/72 Heading F2U A clutch plate assembly allowing rotary play subject to clamping between two parts (e.g. a hub flange 7 and the clutch plate 1) has the clamping produced by a friction element 9, 10 biased by a spring 11 comprising a circular ring in the region of the friction element from which extend radially outwardly, arms to anchor the spring (e.g. by engaging recesses 8 in the hub flange 7, accommodating rivets 4 connecting a plate 5 to the plate 1).
Patent GB-818275-A (GB)
Title: Improvements relating to driving means for marine craft
Filed: 1956-08-21
Abstract: 818,275. Detachable propelling installations. SKINNER, K. Aug. 21, 1956, No. 25564/56. Class 114. A mounting 2 having inclined flanges 7, 8 connected by a tubular portion 6 is bolted through the flange 7 to the stern 9 of a boat and the flange 8 supports an engine 11 whose shaft. 16 carries a coupling sleeve 15 which can be inserted in the cylinder 6 as far as a collar 14 therein. The stern is pierced to receive a casing 19 enclosing a propeller shaft 20 the inner end of which carries a cross-piece 24 adapted to engage in the coupling member 15 when the casing is inserted in the cylinder 6 as far as the collar 14, clamping means 18 being provided to retain it there. Instead of the collar 14 and clamping device 18, a flange on the end of the casing 19 may be clamped to a sleeve on the shaft 16 by a union nut. In modifications, a trunnion mounting protected by a flexible gaiter or a ball and socket joint permit the assembly to pivot about an horizontal axis when a skeg on the casing 19 encounters an obstacle. The ball and socket mounting also permits steering by the propeller.
Patent GB-665056-A (GB)
Title: Improvements in or relating to mixing circuit arrangements for producing a triangular voltage wave
IPC: H03K12/00
Filed: 1949-10-05
Abstract: 665,056. Phase-difference measurements. PHILIPS ELECTRICAL, Ltd., BAILEY, C. E. G., and SPROUL, R. W. Oct. 5, 1949, No. 25599/49. Class 37. [Also in Group XL (c)] A mixing circuit arrangement comprises means to mix an impulsive wave and a further wave to produce a resultant average wave, and means to convert the resultant average wave into a triangular wave which is supplied to a valve connected as a cathode follower. An impulsive wave, e.g. a trapezoidal wave, is fed to the first grid g1, Fig. 4, of the hexode portion of a triode hexode pulse mixing valve 12. The triode part, not shown, generates a sinusoidal wave supplied to the third grid g3. The output of the mixer valve 12 is of the waveform a, Fig. 5, and is applied to the grid of a pulse amplifier valve 13, producing an output waveform b, Fig. 5, and is applied to a triangulating diode 14 to produce a waveform c at the anode. The relative potentials of the anode of the valve 13 and the junction of resistances R11, R12, R14 are so arranged that the discharge flank of the saw-tooth wave is nearly linear and is arranged always to terminate just before the arrival of the next pulse from the anode of the valve 13. Hence the average direct voltage may vary from nearly zero to nearly half the pulse peak. The triangular wave c is supplied to a valve 15 connected as a cathode follower, the output of which is supplied to a diode 16 so that a D.C. output is set up across a resistor R18. If the input waves to the pulse mixer are ou of phase, waveforms such as d, e, f, Fig. 5, are produced. The apparatus is suitable for use in the frequency and phase modulation masterslave system described in Specification 663,619, [Group XL (c)], and may be employed in an impulse governed oscillator.
Patent GB-1413907-A (GB)
Title: Light amplification devices
IPC: H01J31/50
Filed: 1973-05-29
Abstract: 1413907 Image intensifying tubes LITTON INDUSTRIES Inc 29 May 1973 25605/73 Heading H1D The resolution of a light amplifier tube incorporating a photocathode 5, a channel electron multiplier 7, and a metallized phosphor output screen 13, is improved by employing a dielectric film 15 mounted between the photocathode and the multiplier, of a thickness and material such that those electrons which impact the end surface of the multiplier rather than entering the channels, and which give rise thereby to low energy scattered electrons capable of entering random neighbouring channels, are trapped by the film, as are also any positive ions produced by the impact. The electrostatic field intensity maintained between the multiplier and the output screen is at least three times that between the photocathode and the multiplier; an electron focusing arrangement (not described) may be included between the multiplier and the output screen. The film 15, which may be 50 to 400, preferably 75, Angstroms thick, and of boron carbide, aluminium oxide, silicon oxide, magnesium oxide, or magnesium fluoride, is metallized to permit the application of a potential thereto, and may be provided with a thin skin 15A of aluminium oxide, such that the film additionally acts as a transmissionemission dynode. The film 15 may be produced by first forming a nitrocellulose or amyl acetate lacquer film on the end surface of the multiplier, where it may be retained by suction; vapour depositing the dielectric film on the lacquer film; and baking to vaporize the lacquer. Alternatively, the film may be evaporated on to a self-supporting aluminium oxide layer which is then placed on the multiplier and fused thereto by the passage of electric current.
Patent GB-782145-A (GB)
Title: Improvements in or relating to a device for washing and rinsing textile articles
IPC: D06F21/04
Filed: 1955-09-07
Abstract: 782,145. Washing machines. SULZMANN, E. Sept. 7, 1955, No. 25669/55. Class 138 (2). A washing machine in which washing or rinsing liquid is arranged to flow continuously through a treatment chamber comprises a drum 28 having a front loading opening 29 and a perforated wall 19 separating the treatment chamber from an outlet chamber 21, the liquid being arranged to overflow into the treatment chamber through the opening 29. The liquid is removed from the chamber 21 as the drum 28 rotates, by means of one or more radial fins 21a, a tube 24 and a funnel 25. Liquid is supplied to the outer drum 27 through a tube 30 which may be provided with flow-regulating means. The drum 28 is preferably imperforate but a few openings may be provided in the front or side walls. Perforations 22 are provided in parts only of the wall 19. The chamber 21 may be provided with extraction buckets for removing the liquid. Fig. 3 (not shown) illustrates a modification in which the suction tube of a pump extends into the chamber 21, and in this case the whole of the separating wall may be perforated. A steam heating pipe 34 may be provided in the outer drum 27. Specification 770,468 is referred to.
Patent GB-443968-A (GB)
Title: A new or improved apparatus for playing a game
IPC: A63F9/00
Filed: 1934-09-06
Abstract: 443,968. Game apparatus ; controlling sales. PRINTATOR, Ltd., and HORNEMANN, A., 9, Oxford Street, London. Sept. 6, 1934, No. 25688. [Class 132 (ii)] [See also Group XVIII] Punch board game apparatus for use in selling commodities comprises apertured cardboard plates 1 and 4 and paper sheets 3, 8 and 6 held together by clamping strips 9, balls 7 of value determined by colour or shape being positioned in the apertures 5 in the plate 4. The face of the sheet 3 is provided with marks such as numbered circles 10 to indicate the position of the apertures in the plate 1. The punch board is supported in a sloping desk-like box 13 provided with means for delivering at 14 the punched-out balls or for rendering them visible to the player. A pin punch 11 is attached to the box by a cord 16. A board 12 is supported in a vertically disposed frame 15 arranged at the back of the box and bears instructions and clues as to the whereabouts of the higher valued balls, e.g. names which have to be arranged in order. The instruction board 12 may be round, square or oblong and have the form of a clock face printed thereon with the position of the more valuable balls indicated at definite times; the punch board being marked by a cross or a dot at a position for the centre of rotation of imaginary clock hands. Several such centres of rotation may be marked on the punch board. In a further construction, the punch board may be divided into four main sections by heavy lines or each section may be covered by a different coloured paper, and each section is further ruled with horizontal and vertical lines and printed with an independent cross-word puzzle, the clues being printed on the instruction board 12.
Patent GB-257077-A (GB)
Abstract: 257,077. Nicholls, R. E. July 25, 1925. Open fireplaces; coking chambers; grates ; air supply for combustion.-A fuel container D is arranged at the front of an open fireplace, a combustion chamber or passage E extending from it round the sides and perforated back C<1> of the grate. An air inlet G controlled by a damper g is formed in the top of the fuel container, and beneath it is a transverse grid or " burner " g<1>. Air inlets also formed in the bottom of the container, and the front is closed by a door H which also closes the front ends of the passage E. The fuel in the container is wholly or partially coked, the gases, together with air entering through the inlet G, passing through the combustion chamber E and entering the grate through the perforated back. Air also enters the container through the perforated bottom, and carries the rising gases with it through the grid or burner g<1>, combustion occurring at the front of the grate. The coked fuel is pushed forward into the grate and the container recharged. According to the Provisional Specification, a cross-bar is fitted near the top of the container to support a slice, below which the coked fuel is pushed underneath the fuel in the grate.
Patent GB-406607-A (GB)
Title: Improvements in weather indicators
IPC: G09B19/18
Filed: 1933-09-18
Abstract: 406,607. Weather indicators. CURRY, M., Riederau-am-Ammersee, Upper Bavaria, Germany. Sept. 18, 1933, No. 25795. [Class 97 (iii).] Two relatively movable plates, having markings capable of being correlated for making a weather forecast, carry respectively a chemical reagent changing colour with changes of atmospheric humidity and temperature and a series of coloured fields for comparison purposes. In the form shown, the disc 1 is divided into three concentric sections. The outer section la is radially subdivided and the subdivisions marked to indicate various meteorological conditions. The central section 1b is radially subdivided into five equal parts, differently coloured according to the various colours assumed by the chemical reagent. The inner section 1c is radially subdivided so that four subdivisions marked with the cardinal points of the compass correspond to each colour field in the central section. A second disc 2, Fig. 2, pivotally mounted on the disc 1 with a compass 8 serving as pivot, has a sector 3, carrying the chemical reagent, e.g. a cobalt salt, windows 4 and smaller windows 7 registering with the section 1b of the disc 1 and a window 5 registering with the section 1c. In use the discs are relatively rotated until the colour shown in the windows 4 corresponds to the colour of the sector 3 and the direction of the wind appears in the window 5. A forecast of the weather as marked on section 1a of the disc 1 then appears in a window 6 in the disc 2. In a modification a further section and window are provided in the discs 1, 2 respectively so that the indication may be modified according as the barometer is rising or falling.
Patent GB-817811-A (GB)
Title: An improved meal humidifying machine
IPC: B01F7/02
Filed: 1954-09-07
Abstract: 817,811. Humidifying meal. SLATER, C. W. Dec. 6, 1955 [Sept. 7, 1954], No. 25894/54. Class 58. In humidifying meal, it is fed into a chamber 2 through an upper opening 7 and falls into a horizontal trough 8, forming the bottom of the chamber, through a spray of atomized water directed across the chamber from an opening 9 therein. A rotating conveyer, in the form of a screw-conveyer of a shaft 19 carrying propelling blades 21 passing through the trough 8, mixes the humidified meal and carries it into a second chamber 4 provided, at the bottom, with a trough-shaped screen 22, through which meal, free from lumps, falls into a hopper 5 having a discharge opening 23, The spray of atomized water is provided by feeding water through a jet 10 into the throat 12 of a venturi pipe 13 connected by a pipe 14 to the outlet of a compressed air fan or blower 15, the inlet of which may be connected by a pipe 24 to the end of the chamber 4. The fan or blower may be driven from the shaft 19 by a pulley 30, a belt 31 and a pulley 32.
Patent GB-1123875-A (GB)
Title: Machine for removal and installation of covers for charging hatches of coke ovens and for subsequent removal of charge around these hatches
Inventor: KOSTOCHKA NIKOLAI GRIGORIEVICH
IPC: C10B25/20
Filed: 1966-06-10
Abstract: <PICT:1123875/C4-C5/1> <PICT:1123875/C4-C5/2> A mixture for removing and replacing coke oven lids comprises a lid-gripping mechanism (42), Fig. 4 (not shown) and scrapers 45 mounted at the end of a casing 10 for a horizontal reduction gear 19, 35 which drives the mechanism (42), and a telescopic charging device 23 mounted laterally on a bracket 22 of the casing 10.  The machine appears to operate as follows: a motor 3 rotates a shaft 17, 18, Fig. 5, which drives the gears 19, 35, and simultaneously lowers the casing 10 through the parts 9, 12 . . . 16.  A pin 21 engaging a slot 7 rotates the casing 10 to swing the mechanism (42) and the attached lid clear of the charging hole and centre the axes of the mechanism (42) and lid.  A dwell at the bottom of the vertical motion of the part 9, ensured by a pin-and-slot connection between the levers 14, 15, allows the gears 19, 35 to rotate the lid several times before it is lifted clear of the charging hole, the motor 3 being then automatically stopped, and the device 23 brought over the charging hole.  A drive on the charging wagon actuates levers (69 ... 71), Fig. 3 (not shown), to open a gate (68) under the charging bunker and simultaneously, through roller (74) on cam 28, rotate an arm 27 and lower a funnel (24) of the telescopic device 23.  After charging, retraction of the funnel (24) and closing of the gate (68), the casing 10 is brought over the charging hole, and the motor 3 driven in reverse direction so that a cam 50 actuates a lever 52 (Fig. 5) and causes a ring 48 to rise and free arms 46 which are driven by the gears 19, 35 and carry the scrapers 45.  A support 58 prevents lowering the part 9 (and hence of the lid) while scraping takes place. Continuing rotation of the cam 50 allows the lever 52 to rise, terminating scraping and releasing the part 9 to replace the lid.
Patent GB-502425-A (GB)
Title: Improved method of enhancing the wet-strength of paper
IPC: D21H25/06
Filed: 1937-09-24
Abstract: 502,425. Drying paper webs. JACKSON, L. MELLERSH-. (Brown Co.) Sept. 24. 1937, No. 25986. [Class 34 (i)] [Also in Group VIII] A paper web S is heatted, e.g. at 475 - 500F. for 1 sec. while passing around a rotary or fixed electrically heated drum D, is drawn back over itself, and rewound at R, after cooling or moistening if desired.
Patent GB-789760-A (GB)
Title: Improvements in or relating to continuous furnaces
Inventor: MARSHALL PETER ROBERT
IPC: F27B5/04
Filed: 1955-09-13
Abstract: 789,760. Continuous furnaces. BIRMING- HAM SMALL ARMS CO., Ltd. May 31, 1956 [Sept. 13, 1955], No. 26126/55. Class 51 (2). In a continuous furnace, Fig. 1, supplied with a controlled atmosphere gas, a string of interconnected boats sliding through the furnace is given a push F1 at the entry end and a pull F2 at the exit end of the furnace, proportional to the respective distances A and B from the ends to the middle of the heated section of the furnace. The forces are applied to the boats by pneumatically or hydraulicallyoperated rams, the operative fluid pressure being adjusted by valves or by proportioning the size of the operating pistons. The boats, Fig. 2, are formed with end slots 1 and connected by nuts and bolts 3 engaging said slots, slotted keeper plates 5 being then dropped over the bolts at both ends of each boat. In a modification, Fig. 3 (not shown), the boats are formed with interengaging tongues attached alternately to the top and bottom of the ends of each boat.
Patent GB-957135-A (GB)
Title: Suction apparatus for retaining personnel in vehicles or aircraft in their seats
IPC: B60N2/90
Filed: 1962-07-07
Abstract: 957,135. Seats. A. P. PEDRICK, and W. J. MACIUPA. Feb. 19, 1963 [July 7, 1962], No. 26133/62. Headings A4J and A4M. [Also in Divisions A3 and F2] Apparatus for preventing a person seated in a vehicle, which may be decelerated, from being carried forward comprises means operative to grip on to a person's back, as a result of an air pressure created in such gripping means which is less than the air pressure existing in that part of the vehicle in which the person is seated. The gripping means may comprise a pad operative against the back of a person's clothing. The pad may form an integral part of the upholstery of the seat which the person occupies. Alternatively the pad may be a separate member from the seat and be secured to a fixed part of the vehicle. As shown the pad comprises a diaphragm 7 formed with holes which communicate with a space 6 in the pad. A pipe 4, valve 3 and pipe 10 connect the space 6 to a main suction pump 1 connected to a suitable pump. The valve 3 (see Division F2) is automatically operable in response to a predetermined deceleration of the vehicle. In a modification shown in Fig. 4 valves 32 are provided to prevent the vacuum condition existing in the space 6 from communicating with the holes 31 in the pad unless a person's back presses against the diaphragm 7 to compress a plurality of springs 33 and thereby open the valves 32.
Patent GB-247882-A (GB)
Title: A device for preventing the unwinding of cotton, silk or other thread from reels or spools and the like
IPC: B65H59/08
Filed: 1925-10-20
Abstract: 247,882. Clitherow, C. A. Oct. 20, 1923. Reels or bobbins.- A device for preventing unwinding from a flanged reel, bobbin, or the like, and for tensioning the thread, comprises a U-shaped piece of wire a the legs of which are connected by spring means b to legs c. The bent ends c<1> of the legs c engage the central hole of the bobbin &c., so that the wire a rests resiliently on the thread. A handle engaging the coils b may be provided.