baber/WOPTO huggingface dataset:
Patent GB-320654-A (GB)
Title: Improvements in loud speakers for wireless apparatus or the like
IPC: H04R7/12
Filed: 1928-04-21
Abstract: 320,654. Searle, G. R. April 21, 1928. Diaphragms for loud-speakers comprise a pleated paper " cone " 15 closed on both sides by plain sheets 16, 17, so as to form a cellular structure. The diaphragm may carry a moving- coil 4 and is attached to its supports by means of a spider 13 having radial arms 14.
Patent GB-139746-A (GB)
Title: Apparatus for furnishing distilled drinking water on ocean-going ships
IPC: C02F1/04
Filed: 1919-05-10
Abstract: 139,746. Jewell, I. H. March 1, 1919, [Convention date]. Jointing tubes to flat headers.- A joint, Fig. 5, between the tubes 14 of a steam condenser and the header plate 15 is made by screw ing threaded bushings 39, tha have been sweated on to the tubes, into threaded apertures in the plate.
Patent GB-129142-A (GB)
Title: Improvements in Means for Propelling Aërial Machines.
Inventor: CAIRNS AUSTIN
IPC: B64C29/00
Filed: 1918-07-19
Abstract: 129,142. Cairns, A. July 19, 1918. Propelling.-A propelling or lifting " unit " for aerial machines comprises a blower w, which draws air through openings s<1> over an annular plane a', placed with its thickened .edge to meet the incoming stream, and ejects it through openings s so as to act upon a reversed annular plane a. The air-streams may be arranged to play upon both surfaces, or only_upon the convex surfaces, of the planes.
Patent GB-1246121-A (GB)
Title: Improvements in or relating to printing arrangements
Inventor: RODGERS DAVID GEORGE
IPC: B41J2/425
Filed: 1968-03-11
Abstract: 1,246,121. Selective printing. PLESSEY CO. Ltd. 10 June, 1969 [11 March, 1968], No. 11822/68. Heading B6F.  A method of printing comprises coating a printing medium with a solution containing a chemical having a plurality of chemical ions and a further constituent which inhibits decomposition of the chemical, and contacting the coated medium with a number of conductors which are selectively energized to liberate the ions at the points of contact to obtain coloration forming an alpha numeric character. The chemical may be potassium iodide and the further constituent may be sodium carbonate. The solution may be formed into a gel by adding starch, and penetration of the solution into the medium may be assisted by the addition of ethyl alcohol. In one arrangement, paper tape 1 fed from a roll is coated with the solution by a roller and passes between a line of rotating toothed discs 20 and a metal backing drum. The teeth constitute the conductors, and those of discs 20 which are energized cause liberation of iodine at the points of contact to form characters as shown. In order that the markings transversely of the direction of strip feed may be more closely spaced, two sets of discs 20, Fig. 3, may be employed, the discs of one set being opposite the spaces between the discs of the other set. Further, the signals to the teeth of the leading set are delayed with respect to those applied to the teeth of the rearward set so that the dots made by one set align with the gaps between the dots made by the other set. Instead of rotating discs, a head carrying two lines of conductors and moved towards and away from the strip in step with an intermittent feed of the strip, may be employed. Devices as described may be employed in page printers to print a complete line of information in one operation.
Patent GB-1123992-A (GB)
Title: Improvements in or relating to motor speed control systems
IPC: H02H7/093
Filed: 1966-03-17
Abstract: 1,123,992. Monostable circuits. FUJITSU Ltd. 17 March, 1966 [17 March, 1965], No. 11841/66. Heading H3T. [Also in Division G3] The speed of an electric motor (see Division G3), e.g. a D.C. machine driving a magnetic or punched tape capstan, is kept constant by a system in which motor speed pulses, generated by a magnetic "tone wheel", are caused to trigger a monostable multivibrator which produces pulses of uniform width (33, Fig. 2, not shown), the resulting variable interval between these pulses being used to control circuits which energize the motor. Control is effected by applying the waveform to an integrator (Fig. 3, not shown), by which the variable interval is converted to a corresponding voltage, which is used to control the pulse length of a further monostable multivibrator which controls the on/off time of energization of the motor. The monostable multivibrator (Fig. 5), in the output circuit is switched to its unstable state by a short pulse (from the tone wheel) applied to an RC differentiator 115, 116; this cuts off a first transistor 105 and allows the potential on one side of a capacitor 121 gradually to go negative. The other side of the capacitor is connected to the base of a second transistor 101 which conducts while the potential is changing, and this is halted at a time depending on the output of the integrator applied through a diode 124 to the capacitor; the system then reverts to its stable state. The output is taken from the collector of the first transistor 105.
Patent GB-527744-A (GB)
Title: Improvements in or relating to apparatus for producing artificial respiration
IPC: A61H31/02
Filed: 1939-04-19
Abstract: 527,744. Appliances for promoting respiration; bellows pumps. MEYER, L. W. (Ingram & Bell, Ltd.). April 19, 1939, No. 11852. [Glass 81 (ii)] [Also in Group XXVIII] An artificial respiration apparatus comprises a jacket adapted to be wrapped about the body of the patient in an air-tight manner, the jacket being adapted to cover at least the lower thorax and the abdomen of the patient and to form an air space thereabove, means being provided to connect the jacket to a device for periodically creating alternate positive and negative pressure in the air space. As shown, the jacket comprises a layer of canvas 5, Fig. 1, cemented to a mercerized, rubberized sheet of cotton 6, the canvas being reinforced with metal ribs 7, and provided with securing straps and buckles 10, 10a. The jacket is shaped to provide an air space above the patient's body, and is brought into air-tight engagement therewith by sponge rubber ribs secured to the ends and sides of the jacket ; the ribs at the ends of the jacket may be replaced by inflatable air tubes 8. The upper part of the jacket is provided with a metal dome 11a provided with a nipple 9 adapted to be connected by a hose to means for creating alternate positive and negative pressure e.g. a pump-type compressor or a bellows. A suitable bellows comprises a side member 15 of collapsible material such as rubberized canvas or leather secured to a fixed top closure plate 16 provided with a hollow shaft 26, and to a bottom closure plate 17 provided with a hollow shaft 23 fitting over the shaft 26 and connected to a crank-shaft driven through reducing gear from an electric motor. The shaft 26 is provided with air-inlet ports and communicates with a nipple 27 to which the hose leading to the jacket is connected. U.S.A. Specifications 1,906,453 and 1,906,844 are referred to.
Patent GB-162288-A (GB)
Title: Improved means for heating the filaments of thermionic devices
IPC: H01J1/13
Filed: 1921-04-25
Abstract: 162,288. Ges. fur Drahtlose Telegraphie. April 24, 1920, [Convention date]. Thermionic oscillation generators. - The filament-heating current is maintained constant by connecting across the source of supply 1, 2 an iron wire resistance 4 in a vacuum, and a constant resistance 3 having a large, cross section so as not to be heated appreciably by passage of current. The filament 6 and an iron wire resistance 5 in a vacuum are connected in parallel with the resistance 3. In order to make the arrangement independent of external variations of temperature, the resistance, 3 is made of iron or material such as nickel having a similar temperature coefficient to the iron wire.
Patent GB-1029823-A (GB)
Title: Improvements relating to flyers for spinning and twisting machines
Inventor: MACKIE JOHN PRINGLE
IPC: D01H7/26
Filed: 1962-03-28
Abstract: In a flyer of the "tubular" type with a guideup near the lower end of at least one leg, the leg has its leading-edge sliped in such a way that a broken end thrown outwardly centrifugally, tends to be forced into a trap on the flyer at a level close to that of the guide-eye. The trap Fig. 1, not shown, may be a slot in the flyer immediately above the lower ring which unites the two legs of the flyer and in which the eye is disposed, while the leadingedge of the flyer is sloped inwardly towards the slot. The slot is also used to conduct the material being spun from the inside to the outside of the flyer. In Fig. 3, not shown, the legs extend below the ring and the trap is provided between the lower edge of the ring and an inwardly-inclined leading edge of the extension of the leg.  In Fig. 4, not shown, the ring is omitted and the trap is formed by a wide-angle V-notch in the bottom of the leading-edge.
Patent GB-102471-A (GB)
Title: Improvements in Plate Holders for Photographic Cameras.
Inventor: ALLAN WALLACE EDWARD
IPC: G03B17/26
Filed: 1916-08-22
Abstract: 102,471. Allan, W. E. Aug. 22, 1916. Dark-slides; cameras for taking a series of photographs on one plate. - In a plateholder carrying a ruled screen in front of the plate, the screen being movable, relatively to the plate between exposures to obtain composite negatives suitable for the production of photographs which may be made to appear animated, the screen or the plate is moved by operating a slide in a direction at right-angles to the direction of movement of the screen or plate. As shown, a frame 6 carrying the screen within a plate-holder 1 has cam-surfaces 12. 13, 14 engaged by surfaces 10 on a member 9 which is moved by a sliding handle 8. Marks 15, 16, 17 indicate the positions for the handle 8 during each exposure.
Patent GB-985039-A (GB)
Title: Apparatus for wrapping articles in container blanks
IPC: B65B11/58
Filed: 1961-04-04
Abstract: 985,039. Wrapping and palletizing machine. CHAMPION PAPER CO. Ltd. April 4, 1961, No. 11965/61. Heading B8C. A machine seals upper and lower cruciform blanks about an article to form a package which it upends and conveys towards an upended pallet. When a stack has accumulated against the pallet, the stack and pallet are rotated to normal position and discharged. The packages are caused lightly to adhere to each other by glue spots. Wrapping.-The wrapping elements comprise a platen 2 having a central ejector plate 20 and arranged beneath an open frame 5. Mounted above the frame are opposed sealing bars 23, 23<SP>1</SP>, 24, 24<SP>1</SP> formed of spaced strips which interdigitate at the crossing points of adjacent bars. The platen and bars are adjustable in height and spacing respectively for various package sizes. Above the frame is a vertically reciprocable pressure plate 101 (Figs. 1, 6). A blank a, Fig. 12, is placed over the sealing bars and the contents placed on the centre panel so that the latter is pressed down to the platen 2 with partial folding up of the side flaps a<SP>1</SP>, a<SP>2</SP> (a<SP>3</SP>, a<SP>4</SP>). Replaceable blocks 36 position the corners. The sealing bars are advanced to square the flaps against the contents and retracted and a second blank b placed on top of the contents with its flaps b<SP>1</SP>, b<SP>2</SP> (b<SP>3</SP>), b<SP>4</SP> tucked between the contents and the flaps of the first blank. The plate 101 now descends and engages the upper blank with valve members 127, Fig. 6, which release pressure air to form a cushion between it and the blank and permit ready adjustment in the horizontal plane. At the same time the spots of glue to cause adhesion between packages are applied through apertures 139. The bars 23, 23<SP>1</SP>, 24, 241 now advance again and press into contact areas c of dry sealing adhesive, previously applied to the blanks, thus completing the package. The bars withdraw, the ejector 20 rises and a pusher 140 thrusts the package across strips 143, mounted on the bar 23, on to a roller conveyer 145. The package actuates a switch 6 L.S. to reset the wrapping means. Palletizing.-Each package passes on to an upending conveyer 201 on which it is aligned transversely by fingers 231. It trips switches causing the conveyer to rotate about pivots on a support 205 (Figs. 1, 1a) so that the package is stood on its side on a further conveyer 320. Movable along the conveyer 320 is an upstanding back stop 301 against which a pallet (not shown) is placed. Packages accumulate against the stop which moves backwards to its shown position. In its end position, it trips a switch 11 L.S. initiating the rotation of the conveyer 320 and stop through 90 degrees whereby the stack and pallet are set upright and may roll off the stop. Specification 985,040 is referred to.
Patent GB-1087706-A (GB)
Title: Improvements in or relating to thermic appliances
IPC: F27D99/00
Filed: 1965-03-22
Abstract: 1,087,706. Manipulating furnace charges. M. S. FROMONT, and M. M. V. C. FROMONT. March 22, 1965 [May 6, 1964; May 15, 1964; June 24, 1964; Nov. 28, 1964], No. 12009/65. Heading F4B. Arcuate lever arms 10 are pivoted about axes outside a furnace chamber, the ends 9 of the arms projecting through slots in the hearth to push a workpiece 4 along or turn it over. The movement of the workpiece 4 is partly determined by the longitudinal cross-section of the hearth which may have convex scallops. Two lever arms 25, 27 turn a workpiece 4 as it is moved between two flat hearths separated by a groove, the shaped end of a third lever arm 30 lifting the workpiece from the groove, Fig. 23. Circular lever arms may be guided by rollers and driven by a toothed wheel engaging the toothed surface of the arm, and both ends of the lever arm may act on the workpiece. The lever arms may operate partly in recesses below the working level of the hearth, and the lever axes may be movable to retract the lever. The operating mechanism of the lever arms may be sealed to prevent escape of hot gases from the furnace, and burners may be arranged in the holes through which the levers penetrate the hearth.
Patent GB-839934-A (GB)
Title: Process for purifying 1,1,1-trimethylol alkanes having at least 6 carbon atoms
IPC: C07C29/88
Filed: 1958-04-15
Abstract: Crude 1.1.1-trimethylol-alkanes containing at least 6 carbon atoms, obtained by the condensation of saturated aldehydes having at least 4 carbon atoms with formaldehyde in alkali medium, acidification and removal of the salts formed, are purified by adjusting the crude product to a pH value of 6.0 to 7.5 by the addition of an alkaline substance, heating the solution to a temperature of 50 DEG  to 250 DEG  C., adjusting the pH of the solution to 4.0 to 5.0 by addition of a sparingly volatile or nonvolatile inorganic acid and subjecting the reaction mixture obtained to thin layer distillation in vacuo. Preferably the purification is carried out on solutions which are free from salt and water. These may be obtained by adding an acid, preferably formic acid, to the solution so that on evaporating in vacuo an anhydrous melt is obtained containing the salt in suspension.  The salt may be removed by centrifuging or filtering. The purification process is also improved if the 1.1.1-trimethylol alkane is subjected to thin layer distillation in vacuo before adding the alkaline substance.  In the examples 1.1.1-trimethylol propane is prepared by condensation of formaldehyde with butyraldehyde in the presence of milk of lime and is purified according to the above process.
Patent GB-1066429-A (GB)
Title: Apparatus for sealing small objects, for example tablets, between two aluminium foils
IPC: B65B5/02
Filed: 1966-03-18
Abstract: 1,066,429. Embossing. HAMAC-HANSELLA A.G. March 18, 1966 [April 28, 1965], No. 12028/66. Heading B6J. [Also in Division B8] An apparatus for sealing small objects, e.g. tablets, between two aluminium foils 18, 36 comprises a drum 20 which has spaced cavities 24 into which a foil 18 is depressed by stamping tools 70 associated with a stamping drum 68 covered with a thick layer of elastic material 72, e.g. rubber, so preventing the formation of creases, the coating clamping the foil against the drum prior to shaping where the foil 18 is forced into the recesses by the tools. A second foil 36 is then applied and sealed to the first foil. In one embodiment the tools 70 are secured on the drum 68 beneath the coating. In an alternative embodiment, three such stamping wheels (68<SP>1</SP>), (68<SP>11</SP>), (68<SP>111</SP>), Fig. 2 (not shown), may be provided each having stamping tools (70<SP>1</SP>), (70<SP>11</SP>), (70<SP>111</SP>), beneath coatings (72<SP>1</SP>), (7211), (72<SP>111</SP>) respectively of increasing length which progressively depress the foil 18 into the cavities 24. In another embodiment, the stamping wheel is mounted on a pivoted arm (84), Fig. 4 (not shown), cam means moving the wheel towards the drum 20 when a cavity 24 is adjacent. The stamping tools (92), Fig. 5 (not shown), mounted on a drum oscillated as in the last embodiment may operate through apertures (92) in a rubber-coated drum which surrounds the tool carrying drum. In a further variation, tools (70A) may be mounted for radial sliding by cam, Fig. 3 (not shown), hydraulic or pneumatic means. After the foil 18 has been depressed, objects are fed into the cavities and the upper foil 36 applied and sealed thereto by a roller 40. A perforating or cutting knife 52 cuts or notches the strip of packed objects longitudinally if two or more rows are formed and a knife 56 provides transverse cuts or perforations. The cavities 24 in the drum 20 may be provided with a vent in the bottom thereof to facilitate the foil depressing process.
Patent GB-1021133-A (GB)
Title: Improvements in or relating to grain driers
IPC: F26B17/12
Filed: 1964-03-21
Abstract: 1,021,133. Shoots. A. B. BLANCH. Jan. 22, 1965 [March 21, 1964], No. 12039/64. Heading B8S. [Also in Division F4] The flow of grain down the inclined shoot 4 of a cascade type drier is controlled by rollers 1 each comprising a regular polyhedron having a vane extending radially from each of its longitudinal edges, alternate vanes 2 being of greater radial length than the intermediate vanes 3. The rollers are either rotatable by the flow of grain or power-driven.
Patent GB-432136-A (GB)
Title: Improvements in or relating to devices comprising an electric discharge tube
IPC: H05B41/232
Filed: 1934-04-23
Abstract: 432,136. Metallic-vapour apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. April 23, 1934, No. 12201. Convention date, April 24, 1933. Drawings to Specification. [Class 39 (i)] A discharge tube containing gas and vapour of a difficultly volatile metal such as sodium, cadmium, magnesium, thallium, rubidium or lithium is connected to an alternating-current supply without the interposition of a transformer and in series with an inductance and a capacity, the capacitative reactance for the supply frequency being greater than 1.4 times the inductive reactance at the same frequency. Preferably the capacitative reactance is twice the inductive reactance. In an example, a tube containing sodium and neon is connected in series with a capacity of 18 microfarads and an inductance of À24 henry to a 50-cycle supply. The effect is to reduce the warming-up period and to stabilize the tube against mains voltage fluctuations. Such tubes may be combined with tubes having inductive stabilizing impedances, when the difference in the warming-up period of the latter may be reduced by using auxiliary heaters or by placing the tubes in the same bulb or evacuated double-walled jacket so that heat can be interchanged. Tubes filled with mercury or neon may also be used with inductive impedances. The arrangement according to the invention may be used for starting only, an inductive impedance being substituted when the tube is warmed up. The Specification as open to inspection under Sect. 91 comprises also the use of transformers between the supply and the various tube circuits and the use of vapour not of difficultly volatile metals. This subject-matter does not appear in the Specification as accepted.
Patent GB-181397-A (GB)
Title: Improvements in or relating to the manufacture of bread
IPC: A21D2/04
Filed: 1920-05-03
Abstract: 181,397. Watson, W., Jones, D. W. Kent-, and Woodlands, Ltd. May 3, 1920. Cereal preparations.-In bread making, a small quantity of a hypochlorite or chlorohypochlorite is added to the flour before making into dough. The salt may be added to the flour in powdered form, or a solution of the salt may be sprayed on to the flour or added to the doughing water. A portion of flour may be mixed with the salt and then added to the rest of the flour.
Patent GB-741812-A (GB)
Title: Improved process for the manufacture of shaped structures from polymers or copolymers of acrylonitrile
IPC: D01F6/18
Filed: 1952-05-15
Abstract: Polymers containing at least 80 per cent of acrylonitrile are dissolved in aqueous nitric acid of 46 to 68 per cent by weight concentration at temperatures below 80 DEG  C., and the solutions produced are processed at temperatures up to 180 DEG  C. into shaped structures such as films and fibres.  In a modification the acrylonitrile polymer is dissolved in a mixture containing 15 to 95 per cent of nitric acid and 85 to 5 per cent of nitromethane. Polymers of acrylonitrile specified are polyacrylonitrile and copolymers with vinyl pyrrole, vinyl chloride, vinyl acetate, styrene, butadiene, methacrylonitrile, and acrylic and methacrylic acids.  The process is preferably applied to polymers having a molecular weight between 10,000 and 90,000 which have been prepared with the assistance of organic catalysts.  The methods by which the solutions are prepared may be varied according to the temperatures and concentrations of nitric acid employed; when using a mixture of nitric acid and nitromethane the polymer is preferably first suspended in nitromethane and the suspension converted to a solution by the addition of nitric acid.  Reference has been directed by the Comptroller to Specification 701,652.
Patent GB-1493490-A (GB)
Title: Data processing system
IPC: G06F12/04
Filed: 1975-03-25
Abstract: 1493490 Data processing system INTERNATIONAL STANDARD ELECTRIC CORP 25 March 1975 [29 March 1974] 12369/75 Addition to 1229183 Heading G4A A data processing system is arranged to operate on slices of a data word and includes means arranged in response to an indication of slice length to generate a justified mask of a length equal to that of a data word and having as many "1" bits as bits in the slice at one end and "0" bits elsewhere. The system includes an instruction register P into which instructions are read from memory 1. A "slice" instruction includes an op code decoded at 3 to produce control signals, a part R to address registers 2, a part CS indicative of the number of bits minus one in the slice, a part PT indicative of the order of the first bit of the slice, and a memory address Y. To load a slice from a word in memory into one of the registers 2 right justified, the parts CS and PT of the instruction are added at L and the resulting five bit number is complemented to produce a number indicating the number of bit shifts required to right justify the slice which is loaded in counter G. Decoder C decodes the slice length CS to produce in shift register E a right justified mask of the appropriate length. Part Y is then used either directly or after index and/or indirect addressing procedures to load the memory word into shift register B. The count in counter G is then used to shift the contents of register B to right justify the slice and registers B and E are ANDed and the result loaded in B. The resulting right justified slice is then loaded in one of the registers 2 addressed by the part R. Other operations are possible, e.g. comparing two slices, and performing logic functions (AND, OR, &c.) on two slices.