baber/WOPTO huggingface dataset:
Patent GB-937332-A (GB)
Title: A process for the continuous production of corrugated flexible tubes from thermoplasts by extrusion from a tubular die
IPC: F16B7/04
Filed: 1962-02-16
Abstract: 937,332. Extruding corrugated tubes. CHEMISCHE WERKE HULS A.G. Feb. 16, 1962 [Feb. 17, 1961], No. 5995/62. Class 87(2). In a continuous process for producing flexible corrugated thermoplastic tubing the hot plastic is extruded through a tubular die and periodically slowed or arrested in a longitudinal direction so that corrugations form in the tubing as it cools. A cylindrical or frusto-conical core 3, which may have a conduit for a coolant, is secured to the die core 1 so that the friction between the core 3 and the tube 4 causes corrugations to be formed. In an alternative embodiment the corrugations are formed by gripping tools which grasp the cooled tubing 5 and move it forward intermittently.
Patent GB-544127-A (GB)
Title: Process for the manufacture of butadiene
IPC: C07C5/333
Filed: 1940-04-03
Abstract: 544,127. Dehydrogenation catalysts. MOND, A. L. (Universal Oil Products Co.). April 3, 1940, No. 5998. [Class 1 (i)] [Also in Group IV] Butadiene is prepared from normal butane in a two stage dehydrogenation process, in which butane is subjected at a temperature from 550‹- 650‹C. and under a'pressure of from 0.5-3 atmos. absolute to contact with two separate bodies of a composite dehydrogenation catalyst composed of a carrier of low catalytic activity and an oxide of an element other than chromium selected from the left-hand columns of Group IV V, and VI of the Periodic Table. The carrier is selected from the group comprising aluminium oxide, magnesium oxide, bauxite, montmorillonite clays, bentonite clays, kieselguhr, silica firebrick and glauconite. The temperature range for the second stage of the process may extend from 500‹-700‹C. The active compounds or promotors include generally compounds and particularly oxides of titanium, zirconium, cerium, hafnium, thorium, vanadium, colombium, tantalum, molybdenum, tungsten and uranium. The preparation of the catalysts is described and information is furnished in detail about the most suitable compounds to use and the best methods of preparing them in the case of the elements titanium zirconium, cerium, hafnium, thorium, vanadium, colombium, tantalum, molybdenum, tungsten and uranium. The preferred carrier material is activated aluminium oxide, and methods of making this are described.
Patent GB-1481943-A (GB)
Title: Machine for mechanically testing material specimens
IPC: G01N3/10
Filed: 1976-02-16
Abstract: 1481943 Tensile testing machine MFL PRUF-UND MEBSYSTEME GmbH 16 Feb 1976 [14 Feb 1975] 06027/76 Heading G1S A tensile testing machine comprises a pair of upstanding pillars 2 each having a stationary piston 3 and a cylinder 5 reciprocable relative thereto, and a crosshead 6 rigidly connected to the cylinders. A further hydraulic ram 8 is interposed between one of the specimen clamps 9 and the base 1 or crosshead 6. Each cylinder 5 is provided with hydraulic clamps 7, 7'.
Patent GB-1036023-A (GB)
Title: Hydraulic transmission mechanisms
Inventor: BRECKNELL RONALD CHARLES
IPC: F16H61/42
Filed: 1964-02-13
Abstract: 1,036,023. Hydraulic transmissions. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb. 9, 1965 [Feb. 13, 1964], No. 6032/64. Headings F2C and F2D. In an hydrostatic variable-speed vehicle drive wherein a variable-stroke swashplate pump 19 driven at a constant speed is in closed circuit with more than two variable-stroke swashplate motors 10-13 each associated with a vehicle wheel or axle, over-speeding of a wheel, due to skidding, is substantially prevented by variable flow-control valves 21 which are arranged between the pump and the motors respectively and are adjusted simultaneously with the pump stroke so that the sum of the maximum permitted flow through all the valves is adjusted to a value just above the pump delivery, whereby only a predetermined proportion of the pump delivery reaches each motor. The valves are provided with means maintaining constant flow despite pressure change. A manually operated lever 14 is connected to cam plates 29, 30 having respectively cam slots 31, 32 engageable by follower pegs 33, 34 on arms 35, 36. The arm 35 carries a control cable 20 for the pump and control cables 25-28 for the valves; and the arm 36 carries control cables 15-18 for the motors. Operation.-In the Neutral (" N ") position of the lever 14, the pump and the motors are at zero stroke and the valves are closed or approximately closed. When the lever is moved in the Forward (" F ") direction, first the motor strokes are increased to maximum, only after which the pump stroke is increased, simultaneously with opening of the valves, for increase in vehicle speed. After the pump has reached its maximum stroke, further Forward movement of the lever provides an " overdrive " condition by causing the motor strokes to be reduced, while the pump stroke remains constant at maximum, so as to further increase vehicle speed. When the lever is moved in the Reverse (" R ") direction, the sequence is similar except that the swashplate tilt of the motors is reversed.
Patent GB-252786-A (GB)
Title: Production of light oils suitable for use as fuel for internal combustion engines from water gas or similar gases
IPC: C07C29/152
Filed: 1925-03-05
Abstract: 252,786. Brutzkus, M. March 5, 1925. Drawings to Specification. Alcohols; aldehydes; ketones ; acids.-The process for the production from gases containing carbon monoxide and hydrogen of light oils suitable as fuel for automobile and aeroplane engines, is carried out in the cylinder of a compressor, the reaction being carried out during the compression stroke in such manner that as the pressure is increasing so heat is abstracted and at the same time the concentrations of the reacting gases are increased, the cooling of the gases and the increases in concentration being secured by injecting reaction gases into the reaction space. The compressor conveniently takes the form of a diesel engine. The present process employs the principles, methods of operating, and the apparatus described in Specifications 155,776 and 217,747. The gases employed may be water gas, coke-oven gas, producer gas, illuminating gas, and blast furnace gas, hydrogen being added where necessary. The reaction may be carried out with the aid of a catalyst, in which case the latter is suitably supported within the reaction chamber. The products obtained by condensation from the reaction gases contain methyl alcohol and higher alcohols, formaldehyde and other aldehydes, ketones, acetic and other acids; the residual gases may be returned to the compressor for re-treatment. Since the reactions involved in the process are exothermic, it is possible so to operate the process as to recover in the form of mechanical work the heat energy evolved.
Patent GB-371532-A (GB)
Title: An improved combination range
IPC: F24C11/00
Filed: 1931-02-28
Abstract: 371,532. Gas cooking and heating stoves. RUSSELL, E., Brent Knoll, Duffield Road, Derby. Feb. 28, 1931, No. 6278. [Class 126.] A gas cooking and heating stove comprises a gas fire c, a gas oven d at one side, and a gas-heated boiler enclosed in a chamber behind the fire, the hot gases from all three passing into a flue i to heat the top plate g. In the construction shown, the gases from the oven d pass through an opening in the top to the space above, and thence by an opening j to the space i, whilst the gases from the boiler chamber pass through an opening f in the top to the same space. A baffle may be arranged in the space over the top of the oven. The boiler burner is lit through an opening e in the front of the boiler chamber.
Patent GB-1214810-A (GB)
Title: Scraper blades
Inventor: WARD JOSEPH ALAN
IPC: B01F7/00
Filed: 1967-02-10
Abstract: 1,214,810. Mixing apparatus. ROSE DOWNS & THOMPSON Ltd. 12 Feb., 1968 [10 Feb., 1967]., No. 6389/67. Heading B1C. A mixing apparatus has a cylindrical vessel with scraper blades 18 supported from a rotating axial shaft 14 and pivoted for limited movement about an axis 21 parallel thereto. In operation as when hydrolysing feathers the shaft 14 is first rotated in the direction in which the scrapers abut the stops 24, and thereafter, when the resistance of the contents is reduced, in the opposite direction, which will cause the blades 18 to abut the stops 23, reducing the clearance between blades and vessel. A heat exchange medium may be supplied to jackets 25, 26 and to the hollow interiors of the shaft 14 and supports 17. (For Figures see next page)
Patent GB-119414-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: DAVIDSON JOHN
IPC: F02B1/00
Filed: 1918-04-16
Abstract: 119,414. Davidson, J. April 16, 1918. Valves.-In a two-stroke-cycle engine a piston valve i controls the distribution of the charges to and from a pair of pump cvlinders b<2>, b<3> having pistons each of which carries a pair of working pistons acted upon simultaneously by each impulse. The pumps and the cylinders are crossconnected. Charges are drawn through a port m into the interior of the valve and pass through ports i, i<1> to passages x, x<1> leading to the pumps. The compressed charges are delivered through these passages to an annular chamber k connected by branch pipes n to piston-controlled inlet ports c, c' in the cylinders a, a<1> respectively. The pistons e, f<1> control the exhaust ports.
Patent GB-1219603-A (GB)
Title: Improvements in and relating to fuel injection pumps for internal combustion engines
IPC: F02M59/10
Filed: 1968-02-09
Abstract: 1,219,603. Fuel injection pumps. FRIEDMANN & MAIER. Feb. 9, 1968 [Feb. 9, 1967], No. 6563/68. Heading F1A. In an in-line type fuel injection pump, the camshaft is supported in end bearings 2, 3 and a centre bearing 6 which is open topped and comprises flanges 8, 9 disposed on either side of a cam 15 for actuating a feed pump secured over an aperture (16) in the housing. The bearing 6 is insertable through the aperture (16) and is bolted to the housing. The thrust side of the bearing has a greater circumferential bearing surface than the un-thrust side; the bearing is reversible.
Patent GB-925220-A (GB)
Title: Improvements relating to surgical drills
IPC: A61B17/16
Filed: 1962-02-20
Abstract: 925,220. Surgical drills. D. B. HORNER. Feb. 20, 1962 [Feb. 20, 1961], No. 6566/62. Class 81 (2). [Also in Group XXII] A battery-driven surgical drill is sealed so as to be explosion-proof and to be able to be sterilized in an autoclave. It also has provision for rotating the output shaft manually without turning the driving mechanism. The battery 53 is housed in a pistol-grip handle 11 and is connected to the motor 16 through a trigger-actuated micro-switch 70. A gear-wheel 34 on the motor shaft drives the main shaft 15 through a wedging roller type of one-way clutch 37 and an output shaft 81 having any suitable means for carrying a tool 89, is fitted on to splines 79 on the end of the shaft 15. If the drill jams in use or if the driving mechanism should fail, the output shaft may be rotated manually by a handle 49 having a square spigot 50 for engaging a corresponding recess in the projecting end of the shaft 15. In order to avoid the possibility of igniting anaesthetic or other explosive gases, the projecting ends of the shafts 15, 81 are sealed by compressed packing rings 23, 86 respectively and seals are also placed around the switch 70 and battery cover 54.
Patent GB-234057-A (GB)
Title: Process of and apparatus for powdering fibrous mortars prior to their setting
IPC: C04B40/00
Filed: 1925-03-10
Abstract: 234,057. Lanhoffer, I. E., and Lanhoffer, O. E. May 13, 1924, [Convention date]. Reducing fibrous material.-In a process for powdering fibrous mortars prior to their setting, the mortar is compressed into blocks or places so as to remove all excess water, and the agglomerated mortar is submitted to a grinding action by means of an emery or carborundum wheel or mill revolving at a high speed and adapted to reduce the mortar to a moist powder. The grinding or powdering means may be used to project the mortar on to the surface to which it is to be applied. Cylinders with file or rasp like surfaces, steel brushes, or circular saws set at an inclination to their axis of rotation mav be used instead of a grindstone or emery wheel.
Patent GB-1471844-A (GB)
Title: Ferritic stainless steel
IPC: C22C38/22
Filed: 1975-02-17
Abstract: 1471844 Ferritic stainless steel ALLEGHENY LUDLUM INDUSTRIES Inc 17 Feb 1975 [7 March 1974] 6603/75 Heading C7A A ferritic stainless steel of composition:- Ti and Mo are alternatively present in respective amounts of less than 0À05 and 0À2% when present as residual elements and residual  %C + %N 2  + %Mn + %Si + %Ni + %Al + %Cu + % residual Ti + % residual Mo # 0À75. The steel is suitable for cold forming and may be prepared by vacuum or electric arc melting, casting, hotrolling, cold-rolling, descaling, annealing at 1575 to 1650F and pickling.
Patent GB-1377546-A (GB)
Title: Ultrasonic detection apparatus
IPC: G01S7/52
Filed: 1972-02-14
Abstract: 1377546 Ultrasonic detection devices MATSUSHITA ELECTRIC WORKS Ltd 14 Feb 1972 [5 March 1971 26 May 1971] 6802/72 Heading H4D  An ultrasonic detection apparatus comprises oscillator A, A.C. source 3 and switching circuit B. Circuit B short circuits source 3 and determines the interval T (Fig. 5, not shown) between pulses from oscillator A. Acoustic signals from transducer 12 are received at transducer 13 from various paths, e.g. I, II, III, only the signal reflected from object 19 being desired. The signals c from amplifier C are passed to gate F. Circuit D generates a pulse d, in response to the output of oscillator A, of width less than T and d is delayed at device E. Gate F responds to the output of delay E and only passes signals f within a predetermined time period, i.e. the signal from object 19. Signal c<SP>1</SP>, corresponding to path I is gated out. Circuit G detects the signals from gate F and the output g of circuit G is shaped by device H (see waveform h) and applied to integrating circuits I 1 , I 2 , I 2  having a shorter time constant than I 1 . When circuit I 1  has integrated a sufficient number of pulses h its output voltage i, via amplifier J, energizes a relay closing detection switch 15 and switching contacts 14. I 2  is preliminarily charged by contacts 14 from a power supply and is switched to the input of amplifier J to enhance the switching action of switch 15. Oscillator A may comprise a capacitor 8, Fig. 4, charged by source 3 via resistors 2, 2<SP>1</SP> on positive half cycles only due to diode 1. Eventually the voltage on capacitor 8 switches on thyristor 4 and the capacitor is discharged through winding 5. The induced voltage across winding 6 oscillates in capacitor 9 and induces a voltage in primary 5, the switching element 4 swings repeatedly between its non-conducting and conducting states. Capacitor 8 therefore discharges intermittently at a frequency arranged to be the resonance frequency of transducer 12. Switching circuit B may be a monostable triggered by the output of oscillator A. When circuit B is triggered, transistor 11 is turned on and shorts out diode 1 and hence supply 3 for a period T.
Patent GB-349938-A (GB)
Title: Improvements in photographic film packs
IPC: G03B17/34
Filed: 1930-03-03
Abstract: 349,938. Photographic film packs. RICH, H. C., Magna Works, London Road, Bedford. March 3, 1930, No. 6919. [Class 98 (i).] The detachable cap 12, Figs. 2 and 7, fitting on the end of the casing 13, Fig. 3, of a film pack has a slot 33 in the end 41 and is fitted with a troughshaped support 36 containing spring-pressed plush strips 34, 34a, the lower face 40 also being slotted to provide a light trapped passage for the film tabs. The metal cut from the face 40 to form the slot is rolled up at the ends 39 forming stops for the shoulders of the films. The rear edge of the case 13 passes between the elongated side 30 of the cap and the rear face of the inner trough 36, and is held by a frictional grip. The internal construction of the film pack described comprises (a) a lining 14, Fig. 3, of black paper on the back and bottom of the casing, and extending upwardly just above the exposure opening ; and (b) a separating member 10, Fig. 4, having legs 11, rearward lugs 20, springs 22, lighter springs 21 engaging recesses 26, Fig. 5, of a cardboard pressure sheet 24; this sheet having a black paper extension 25 passing round the rolled end 23 of the partition 10.
Patent GB-469143-A (GB)
Title: Improvements in or relating to earth leakage protective means for electrical apparatus
IPC: H02H3/10
Filed: 1936-03-09
Abstract: 469,143. Protective cut-out arrangements. CHELLIS, G. F. March 9, 1936, No. 7029. [Class 38 (v)] [Also in Group XXXVI] The fuse 5 in the unearthed line of the supply to the apparatus 3 is adapted, when the insulation of 3 breaks down, to be melted by a heating coil 7, which is energized by the secondary 6 of a variable-ratio current transformer having its primary in the earthing conductor 4 of the apparatus-frame. The wire 5 is surrounded by a refractory insulating tube 8 on which the heating coil 7 is wound, the heater being covered by layers of asbestos tape or an asbestos jacket 9. With a polyphase supply, the current transformer has three secondaries, one for each phase. The fuse may, alternatively, open the holding circuit of a breaker, and may be replaced by a fluid capsule or bimetal strip controlling a holding or trip circuit. The Specification refers also to interrupting the whole of the supply from a power transformer to a faulty distribution system, one terminal of the secondary of the power transformer being earthed through the primary of the current transformer, and the other terminal being connected to the line carrying the fuse.
Patent GB-548372-A (GB)
Title: Improvements in adjustable boring and reaming tools for lathes, boring and drilling machines
IPC: B23B29/034
Filed: 1941-06-04
Abstract: 548,372. Boring heads and bars; reamers. HUTTON, J. June 4, 1941, No. 7055. [Class 83 (iii)] An adjustable boring or reaming tool comprises a pair of cutters B B mounted in a bar C and provided with semi-conical recesses which are differently spaced on the two cutters and which coact with a pair of conical-pointed screws 1, 2 which may be operated to adjust the cutters from the closed position, Fig. 5, to the open position, Fig. 6. The screws may be inserted either from the end of the bar or from the side, Fig. 4.
Patent GB-1469738-A (GB)
Title: Flat heat-exchanger tube
IPC: F28F1/02
Filed: 1975-02-19
Abstract: 1469738 Soldering; making tubes; making heat-exchangers GRANGES ESSEM AB 19 Feb 1975 [21 Feb 1974] 7055/75 Headings B3R and B3A A method of manufacturing flat heatexchanger tubes 11 comprises bending a flexible metal strip so that flat edge portions 17, 18 thereof overlap each other over a flat central portion 19 of the strip, bending the innermost longitudinal portion 17 at an angle, preferably a right angle, to form a support flange 20, then pressing the edge portions 17, 18 together under reaction from the central portion 19 via the support flange 20 and soldering the joint between the edge portions. The support flange can be bent back on itself (Fig. 2, not shown) in order that the support is near the centre of the intended joint. The support flange may be soldered to the central portion 19.
Patent GB-453208-A (GB)
Title: Improvements in advertising and like display devices, toys and the like
IPC: G09F11/02
Filed: 1935-03-06
Abstract: 453,208. Pictorial toys. WATSON, C. G., 799, Kingston Avenue, Oakland, California, U.S.A. March 6, 1935, No. 7077. [Class 132 (iii)] [See also Group XVIII] A toy &c. comprises a plurality of independent manuallyoperated prisms 18 located behind parallel openings 14 in a display face 12. Each side of each of the prisms 18 has at one end a transverse slot 29 into which a spring is adapted to snap to register the prism in correct position. Each spring is formed as a bent-up tongue 27 integral with a transverse base 24 riveted at 26 to the casing 25. Each side of the prisms carries a display which forms a composite picture &c. with displays on the other prisms and on the bars 13 lying between the openings 14.
Patent GB-1202519-A (GB)
Title: Stack rack for bottles
IPC: A47B73/00
Filed: 1969-02-10
Abstract: 1,202,519. Bottle racks; joints. HANDELMAATSCHAPPIJ CURVER N.V. 10 Feb., 1969 [13 Feb., 1968], No. 7086/69. Heading A4H. A bottle rack comprises superposed shelves each composed of a pair of spaced parallel horizontal ledgers 1 or 1<SP>1</SP> interconnected by spacer members 2. Each spacer member is H-shaped with a cruciformsection cross-piece (10) and tapared square section mortises 12, or tenons, on the ends of the sides co-operating with tapered cruciform-section tenons 9, or mortises on or in the ledgers. The mortise-and-tenon joints may be replaced by elongated- or circularsection pin-and-socket joints. Ledgers 1, 1<SP>1</SP> and spacers 2 are injection moulded respectively of impact resistant polystyrene and polyethylene. The ledgers are of I-section, the flanges 3 providing recesses 4 for bottles 5. Local transverse webs 6 and holes are provided.
Patent GB-250914-A (GB)
Title: Improvements relating to indicating devices
IPC: G01L19/08
Filed: 1926-03-15
Abstract: 250,914. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Roth, A.). April 15, 1925, [Convention date]. Indicating maximum movements. - A maximum indicator for use with the rotatable pointer of a measuring instrument is normally positively connected to a stationary member but is adapted to be disconnected therefrom for actuation by the indicating pointer. The indicating pointer spindle 1 has loosely mounted thereon a sleeve 17 held stationary by a blade spring 9, said sleeve having a disc 5 of cork or other yielding material and a ratchet wheel 8 for engagement by a manually operable zeroizing pawl 11. The maximum indicator 3 is loosely mounted on the spindle 1 and has pivoted thereto a pawl 6 for indenting the surface of the disc so as to hold it in the set position. The pawl is controlled by a spring 21 and is provided with a projection 25 for engagement with the indicating pointer 2 whereby the pawl is released to permit further forward movement of the indicator 3.
Patent GB-1221955-A (GB)
Title: Improvements in or relating to apparatus for transferring a stack of sheet-like materials
Inventor: KUGLER WALTER
IPC: B65H3/50
Filed: 1968-02-14
Abstract: 1,221,955. Feeding sheets. W. KUGLER. 14 Feb., 1968, No. 7233/68. Heading B8R. Stacks 6 are placed on plates 5 indexed upwards by chains 3, 4 to bring the upper part of the top stack into separating position where a wedge 12 is moved by a slide 8 so as to penetrate the stack while a magnet 19 is energized to oscillate the wedge horizontally and facilitate penetration. A jaw 15 is then pivoted downwards to grip the separated part of the stack and the slide is retracted to pull said part 6a into the nip of rollers 23, 21, whence it is fed along a conveyer 20 and then between conveyers 20, 25 to a processing machine. Air may be directed from a blower on the slide 8 to the point of penetration.
Patent GB-692380-A (GB)
Title: Treatment of textile materials to reduce their tendency to felt and to increase their abrasion resistance
IPC: D06M23/00
Filed: 1951-03-29
Abstract: The tendency of textile materials composed wholly or partly of wool or other animal fibres to shrink is reduced, and their abrasion resistance is increased, by treating them with a solution of a synthetic linear polyamide substituted on the nitrogen atoms with alkoxymethyl or methylol groups in an organic solvent, and then heating the materials or treating them with a solution of a substance, e.g. a mineral or other acid, such as hydrochloric acid, sodium hydroxide or sodium sulphite, which is adapted to convert the substituted polyamide to the unsubstituted form.  The substituted polyamide may be prepared by the methods of Specifications 573,482 and 576,363 and applied in solution in ethanol or methanol containing 5-40 per cent water.  Examples are given, in one of which the heat treatment is effected at 120 DEG  C. for 30 minutes.  Specification 692,381 also is referred to.