baber/WOPTO huggingface dataset:
Patent GB-179566-A (GB)
Title: Improvements in or relating to microphones
IPC: H04R21/02
Filed: 1920-10-29
Abstract: 179,566. Gardner, J. Oct. 29, 1920. Vibration, indicating.-Relates to microphones for use in detecting faults in connection with moving mechanical parts &c. by responding to vibrations &c. therein, and consists in adapting the microphone to suit the different parts of the detecting system so as to obtain in a telephone, wind indicator or other receiver a faithful reproduction of the noises, knocks, vibrations or other disturbances set up. A suitable microphone compries a body or casing 4 adapted to be rigidly secured to a bearing, guide, or the like 8 and of such proportions as to provide a relatively massive metallic connection of large sectional area therebetween; an electrode 9 mounted in the body or casing and disposed as near as possible to or in alignment with the connection between the body and the bearing; and a second electrode 10 carried by a member 11 detachably secured to the body or casing so as to be readily removable or interchangeable. The electrode 9 is in electrical contact with or insulated from the casing 4 according as the casing is or is not comprised in the electrical circuit, and is preferably formed with a flat face of carbon or other non-oxidizable material. The electrode 10 is carried by and insulated from a bridge 11 which is secured at its ends to the rim of the casing. When used with normally-quiet bearings, the bridge 11 is made thin in the manner of a diaphragm and may be of reed, strip, circular, or other form, the front electrode 10 being of relatively great mass and made, for example, of brass electroplated with gold or platinum. In this case the terminals 9, 10 move relatively to one another in the ordinary microphonic manner. When used in connection with normally noisy bearings, the bridge 11 is made so thick that the distance between the electrodes remains substantially uniform, the microphonic effects, due to the vibrations transmitted by way of the casing 4, being obained mainly or solely from the variation in contact between the particles of the variable-resistance material contained in the cavity 13. The casing may be provided with a water and oil excluding cover 18. Instead of being directly attached, the casing may be secured to the bearing through the medium of a rigid right-angled or other bracket. A number of such microphones may be fitted to a bearing and provided with switching means so that any one may be separately connected to receiving and indicating instruments, the casings being all connected in series with a common return wire. In some cases, the bearings and framework of the machinery may form part of the return path. In addition to ordinary bearings, the microphone may be fitted to the cylinders of reciprocating pumps, or to the cylinders of internal-combustion engines in order to indicate pre-ignition.
Patent GB-747839-A (GB)
Title: Process for the manufacture of thin wire with a non-shining surface, and wire manufactured according to said process
IPC: B21C9/00
Filed: 1953-11-05
Abstract: 747,839. Drawing wire. BETHGE, W., MONTMOLLIN, J. P. DE, and GUGGER, R. Nov. 5, 1953 [Nov. 5, 1952], No. 30621/53. Class 83 (4). In a method of drawing wire to obtain a non- shining black surface, a non-graphitic lubricant having an addition of graphite is applied to the wire.
Patent GB-1082231-A (GB)
Title: Apparatus for opening bales of fibres
IPC: D01G7/04
Filed: 1964-08-04
Abstract: 1,082,231. Mixing fibres; opening fibre bales. H. HERGETH. Aug. 4, 1964 [Sept. 21, 1963], No. 30645/64. Headings D1F and DIN. Fibre bales are opened by teasing the bottoms of a row or rows of bales with primed rollers, the bales being supported in containers having their bottoms formed as grids. Each container may support more than one bale and the containers may be loaded away from the machine and placed in operative position by suitable lifting appliances. The containers may be arranged in rows on the machine, each container being positioned by means of lateral arms that rest on the machine frame. Primed rollers 4 are mounted to traverse beneath the bales in a driven carriage. In order to counteract a lowering of production rate as the weight of the bale decreases a means of adjusting the depth of penetration of the primed rollers 4 is provided by supporting the rollers in a frame 16 spring-mounted on the carrige. Depth of penetration is regulated by sensing members 19 carried on the same frame as the primed rollers. Other feeler members or an optical sensor may be employed and other means of regulating depth may be used. By suitable choice of speeds between the carriage and a belt 12 fibres may be mixed.
Patent GB-187862-A (GB)
Title: Improvements in tamping mechanism for concrete block making machines
IPC: B28B1/04
Filed: 1921-11-17
Abstract: 187,862. Gray, F. T., and Whitaker, Ltd., R. G. Nov. 17, 1921. Tamping-machines. - Concrete blocks are tamped by means of a head a mounted on a frame a' pivotally connected to a pair or pairs of arms c, e of unequal length, which are pivoted on a bracket b so that the head a may be reciprocated while in the mould x. The frame a' is connected to the arms c, e by transverse shafts d, f respectively. The weight of the head is counterbalanced b y adjustable weights h and springs i mounted on continuations c<1> of the arms c.
Patent GB-1527946-A (GB)
Title: Rotary compressor
IPC: F04C18/16
Filed: 1976-07-22
Abstract: 1527946 Rotary positive-displacement fluidmachines CALSPAN CORP 22 July 1976 [30 Jan 1976] 30684/76 Addition to 1505270 Heading F1F The main invention is improved or modified in that the thickness d 1  of the element of each rotor farthest from the discharge port 40 is greater by e.g. at least 20%, than the thickness d2 of the adjacent element so as to increase the partial compression of the working fluid before it passes into the said port. Preferably, the angular displacement of the aforementioned elements relative to each other is at least 55 degrees and the angular displacement of the element nearest the port 40 relative to the element farthest from that port is at least 110 degrees.
Patent GB-758840-A (GB)
Title: Improvements in or relating to methods of welding
IPC: B23K9/23
Filed: 1953-11-06
Abstract: 758,840. Welding by fusion. GENERAL ELECTRIC CO., Ltd., and DONELAN, J. A. Oct. 22, 1954 [Nov. 6, 1953], No. 30812/53. Class 83 (4). After butt-welding members of aluminium or aluminium alloys and allowing the molten metal to cool sufficiently to recrystallize, the seam is remelted to a smaller depth and across a smaller width than in the initial welding operation without the addition of further metal. Tubes or cable sheaths may be so welded. The initial welding operation is performed using a gasshielded consumable or non-consumable electrode with or without a filler rod. The remelting is performed using, e.g., a gas shielded non-consumable electrode or a gas flame. According to the Provisional Specification, other metals such as stainless steel, copper and copper alloys can be joined as described above, and the remelting may involve melting more metal than in the initial welding operation.
Patent GB-485541-A (GB)
Title: Improvements in or relating to machines for kneading or mixing rubber and other plastic material
IPC: B29B7/18
Filed: 1937-11-10
Abstract: 485,541. Kneading &c. machines. GEIPEL, Ltd., W., GEIPEL, K. S., and GEIPEL, S., [Representatives of PELL, W. GUY-]. Nov. 10, 1937, No. 30847. [Class 86] A rubber kneading machine is driven by an electric motor 2 through reduction gearing 3, a flywheel 4 being provided between the motor and gearing or on an extension of the motor shaft.
Patent GB-1110323-A (GB)
Title: Method of sheathing semiconductor devices
IPC: H01L23/31
Filed: 1965-07-20
Abstract: Semiconductor device is sheathed with a casting resin or thermoplast by dipping the device into a molten hard wax to provide an inner sheathing and then dipping into a molten polymeric fatty acid amide to form an outer sheathing prior to applying the casting resin or thermoplast.  The first sheathing may be effected by placing the article in a pre-formed case and then pouring the resin e.g. epoxy resin into the case, or dipping into liquid or molten resin. Suitable hard waxes are amine, polyethylene waxes e.g. "ozocerite" wax.  Inorganic fillers e.g. quartz meal or mica powder, inorganic or organic pigments such as titanium white, halogen blue, ultramarine and fast blue may be added to the polymeric fatty acid amide.  The coated article may be tempered by heating.  The articles coated may be a selenium rectifier, rectifiers comprised of monocrystalline semiconductor elements e.g. silicon.
Patent GB-1432158-A (GB)
Title: Air foils
IPC: B63H9/06
Filed: 1973-06-28
Abstract: 1432158 Sails; parachutes A J SLEMMONS 28 June 1973 [23 Feb 1973] 30918/73 Headings B7V and B7G [Also in Division F2] A thin air foil such as a sail 14 has apertures 30 to improve its aerodynamic effectiveness, the apertures being formed in rows of three or more apertures with each row 28, 28a providing an aerodynamic force of small air jets that produce a trailing vortex. The rows of apertures are formed in an elongated array the axis Z-Z of which is normal to the free air stream 15 flowing along the foil, the axes 32, 32a of the rows being at actute angles -b, +b to the free air stream. The rows of apertures are spaced along the array axis by a distance sufficient to present a gap d to the air stream that is not less than the extent of one row as measured along the axis of the array. The air foil may be a parachute in which the array of apertures extends circumferentially adjacent the lower edge of the parachute.
Patent GB-998696-A (GB)
Title: Improvements in and relating to duplicating material
IPC: B41M5/136
Filed: 1961-08-28
Abstract: A copy-receiving sheet, for use with a colour-reactive "carbon" paper (see Division D2) is coated with a composition comprising polyvinyl alcohol in aqueous solution, monomethyl tetrachlorophthalate, oxalic acid, ethyl alcohol and silicic acid.ALSO:Tetrakis - (4 - dimethylaminophenyl)-ethanediol is used in a colour-reactive "carbon" paper (see Division D2), since it reacts with acids to give intensely blue salts. Acids referred to are oxalic, sulphosalicylic, maleic, succinic, sulphamic, metasulphobenzoic and trichloracetic. In an example, the "carbon" coating comprises Brazil wax, dioctyl phthalate as softener and the diol.ALSO:A duplicating material comprises a transfer layer containing tetrakis-(4-dimethylaminophenyl)-ethandiol. A typewriter ribbon may be impregnated with this material, or a duplicating sheet of paper may be coated with a mixture of this material with Brazil wax and dioctyl phthalate as a softener.  These are used for making copies with copy-receiving sheets sensitized with an acid or acid-reacting substance to convert the diol to a blue-coloured salt.  The acid may be oxalic, sulphozalicyclic, maelic, succinic, sulphamic, metasulphobenzoic, or trichloracetic acid. In Example 2, paper is coated with a mixture of polyvinyl alcohol in aqueous solution, monomethyl tetrachlorophthalate, oxalic acid, ethyl alcohol and silicic acid.  Sheets bearing coatings of diol on one side, and of acid on the other may be interposed between a top sheet bearing diol and a bottom sheet bearing acid, with donor and receptor coatings facing one another throughout, so that when the top sheet is written upon copies are formed on all.
Patent GB-1311717-A (GB)
Title: Tungsten filament support for vacuum deposition of metals
IPC: C23C14/26
Filed: 1970-06-25
Abstract: 1311717 Coating with metals by evaporation GTE SYLVANIA INC 25 June 1970 [25 June 1969] 30968/70 Heading C7F An evaporator, e. g. for coating with Al, comprises a tungsten coil 2 for holding the Al, and having parallel legs with a ceramic support 4.
Patent GB-736272-A (GB)
Title: Improvements in or relating to the preparation of active alumina gel
IPC: C01F7/142
Filed: 1953-11-09
Abstract: An active alumina gel is prepared by precipitating with carbon dioxide an aluminate solution whose molar ratio of Na2O to M2O5 is not greater than 1.2.  The alumina content of the solution should be at most 15, preferably 8 gm. per litre. The temperature of precipitation should be 10-15 DEG  C. and the time of precipitation at most 60 minutes.  The precipitate is dried under decreased pressure at a temperature not exceeding 70 DEG  C. to a water content of at least 40 per cent.
Patent GB-741371-A (GB)
Title: An improved method of coating long strips or webs of substantially nonabsorbent material with a liquid simultaneously on both sides
IPC: B05D7/04
Filed: 1952-12-05
Abstract: 741,371. Coating webs. MEULEN, L. VAN DER. Dec. 5,1952 [Dec. 8, 1951], No. 30980/52. Class 140. A method of coating long strips or webs of substantially non-absorbent material simultaneously on both sides with a liquid comprises passing the material in a downward diiection through the coating liquid present in substantial amount in a container having rigid side walls and past the edges of a slit-like outlet aperture in the bottom of the container, in such a way that the longitudinal edges of the slitlike aperture adapt themselves constantly yieldingly to the variations in thickness of the passing material in such a manner that the coating liquid will only cling or adhere to the material after emerging from the aperture. As shown in Figs. 3 and 4, the container for the coating liquid with the slit-like outlet aperture is formed by a pair of rolls 23, 24 preferably made from an elastic material or coated with an elastic material such as gelatin, placed parallel to each other in a horizontal plane, at least one roll 23 being continuously pressed towards the other roll and against the passing material 21 from the supply roll 22 by springs 29, 30 and sliding bearings 27, 28, both rolls 23, 24 being connected by a chain (not shown) passing over the sprockets 31, 32 by which both rolls 23, 24 will have the same peripheral speed. The coating liquid is continuously supplied from supply lines 47, 48 having spaced discharge openings at both sides of the material 21, between this material and the rolls so that the liquid is always in contact with the material over its full breadth, the superfluous liquid running into vessels 49, 50 from which it may be pumped back to the supply lines 47, 48. The treated material 21<SP>1</SP> after leaving the rolls 23, 24 is dried and again conveyed upwards by conveying rolls 33a, 33b and 33c so that the apparatus may be controlled from the same floor in which the apparatus is placed and finally the coated material is wound on the roll 34. An electromotor 35 drives the roll 23 through a reduction gear (not shown) and also the driving roll 40 and the roll 34 by rope pulleys 36, 37 mounted on the same shaft through the rope pulleys 38, 39. When the coated material is ruptured between the rolls 23, 24 and the driving roll 40 and is not therefore tightly stretched, the feeding current of the electromotor is interrupted by co-operation of the trailing roll 42, the lever system 43 being rotatable around the hinge shaft 44, the pulling spring 46 and the interrupter pin 45 and the apparatus is automatically stopped. The material, which may not be completely dried from a preceding coating, may be subjected to two or more successive coating treatments or to a subsequent printing or impressing treatment by passing it through multiple apparatus as described placed below each other.
Patent GB-248873-A (GB)
Title: Improvements relating to heels of boots and shoes
IPC: A43B21/24
Filed: 1924-12-24
Abstract: 248,873. Rice, F. E., and Shoe Inventions, Ltd. Dec. 24, 1924. Protectors, construction of. - A removable heel piece comprises a top piece A, Fig. 1, and lift B recessed in the middle C and with a groove D communicating with the breast of the heel whereby a tool may be inserted to prise off the heel piece. The unit A, B is concaved in a press so as to make good peripheral contact with the permanent heel. An assembled heel, Fig. 4, consists of the elements A, B, a flat lift G, and a concaved lift H to form a heel seat. Instead of forming the lift H concave, the lift C may have a concave upper surface to which a flat lift H is fitted. The above heel may be adapted for use in the manner described in Specification 244,530, [Class 17 (ii), Boots and shoes, Construction of], in which the end of a shoe sole is recessed into the heel.
Patent GB-972310-A (GB)
Title: Improvements in or relating to rotary electric switches
Inventor: DICKINSON RONALD SIDNEY
IPC: H01H19/00
Filed: 1961-08-30
Abstract: 972,310. Momentary-contact switches. ARMSTRONG PATENTS CO. Ltd. Aug. 17, 1962 [Aug. 30, 1961], No. 31159/61. Heading H2B. A rotary switch comprises a stationary carrier member 10 with stationary contacts 12 and a rotor 14 with a wiper 16 adapted to make sliding transient connections with the contacts 12 as the rotor is rotated between its rest positions. A common contact 18 is mounted on the member 10 and is in sliding engagement with the rotor 14.
Patent GB-537040-A (GB)
Title: Improvements in and relating to two stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1939-11-30
Abstract: 537,040. Two-stroke cycle engines. PETERSEN, 0. Nov. 30,1939, No. 31187. [Class 7 (ii)] An exhaust-pipe system tuned to create oscillations supporting scavenging and charging is variable to suit differing speeds and loads.. The exhaust conduit 13 may traverse chambers 10 to which it is open in varying degree depending on the position of sleeves 15. The chamber volume may also be varied by the introduction of water 11. Variation may be effected automatically under control of speed or load conditions or exhaust temperature through mechanical, electric or hydraulic transmission. Specifications 246,880, [Class 7 (ii)], 431,856 and 442,940 are referred to.
Patent GB-961487-A (GB)
Title: Panel assembly for an airfield landing mat
IPC: E01C9/08
Filed: 1962-08-14
Abstract: 961,487. Airfield runways; joining metal sheets. GREGOIRE ENGINEERING & DEVELOPMENT CO. Aug. 14, 1962 [Aug. 14, 1961], No. 31208/62. Headings E1G and E1K. To form an airfield runway a series of metal panels 10, Fig. 4, are interlocked along their longitudinal edges and retained by filler members 12. Each panel has inverted T-section lugs 24 depending from one side wall 14 and slots 26 at the bottom corner of a channel 18. The lugs of one panel are inserted in the slots of an adjacent panel and a filler member 12 wedged in the channel 18, an upwardly bowed locking bar 36, Fig. 6, passing through apertures 34 in the sides of the member 12 being struck, through an aperture 38, to brace its ends against the wall 14 of one panel and the wall 16 of the adjacent panel. Water impermeable tape 40 is cemented to the joint between the wall 14 and the bottom of the channel 18. An electric cable 46 and a pipe 50 with spaced outlet nozzles 54 for supplying foam or other fire extinguishing liquid may be housed in the channel 18. An arched bridge or like structure is formed from an assembly of the plates 10 and filler members 12 by means of tension rods 82, 84, Fig. 10.
Patent GB-1511019-A (GB)
Title: Stator construction for an axial flow compressor
IPC: F04D29/34
Filed: 1975-07-25
Abstract: 1511019 Compressor stator blade fixing UNITED TECHNOLOGIES CORP 25 July 1975 [29 July 1974] 31284/75 Heading F1T Circumferential groups 42 of blades 44 are each retained in an annular groove in an unsplit compressor casing by an arcuate member 46 bolted to the casing and engaging a recess 56 in each blade base 54. Circumferential movement of the blades is prevented by plates 48 secured to the ends of respective members 46. Clearances 60, 62 permit the blades to rock thus damping vibrations, the rubbing surfaces being hardsurfaced to reduce wear. In the arrangement shown, there are six groups 42, four each having fourteen blades 44, one having thirteen and the final group only one.
Patent GB-908101-A (GB)
Title: Polymerisation process
Inventor: STUART-WEBB JOHN
IPC: C08F110/06
Filed: 1958-10-01
Abstract: Propylene is polymerized in the presence of hydrogen in contact with a catalyst obtained by mixing one or more organometallic compounds of aluminium having at least one hydrocarbon radical attached to the aluminium atom, any remaining valencies being p  satisfied by hydrogen or halogen atoms and the hydrocarbon radical being an alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl radical, with a crystalline material of aluminium, titanium and chlorine in which the titanium is substantially all in the trivalent state and the atoms of Al, Ti and Cl are bound together in crystal lattices, the crystalline nature of which is shown by X-ray diffraction, the material being stable at 250 DEG C. at 1 m.m. absolute pressure.  The organoaluminium compound may be a trialkyl or a dialkyl halide or mixtures of these may be used and specified components are lithium aluminium tetrapropyl, diethyl aluminium chloride, aluminium triethyl, trimethyl or tripropyl. The crystalline material may be prepared by reacting titanium tetrachloride with aluminium with or without aluminium chloride at 80 DEG  to 220 DEG C. and then separating unreacted titanium tetrachloride, the crystalline product normally having an Al: Ti: Cl atomic ratio of substantially 1:3:12 and is preferably comminuted before mixing with the other catalyst components.  The polymerization may be carried out in a solvent such as petroleum ether and the polymers which are isotactic may be purified by treatment with water, steam or an alcohol, e.g. methanol or butanol, followed by washing to remove catalyst residues.  The quantity of hydrogen present may be varied to alter the molecular weight of the polymer.  Specification 845,720 also is referred to.
Patent GB-1023100-A (GB)
Title: Weft inserting mechanism for shuttleless looms
IPC: D03D47/00
Filed: 1964-08-04
Abstract: The flexible tape weft inserting member 24 is maintained in close proximity to the tape wheel 20 by means of compressed air supplied through air bearing members 28.
Patent GB-685014-A (GB)
Title: Improvements relating to change-speed gear control means
IPC: F16H63/20
Filed: 1950-12-28
Abstract: 685,014. Change-speed control. DAIMLERBENZ AKT.-GES. Dec. 28, 1950 [Dec. 28, 1949], No. 31510/50. Class 80 (ii). To facilitate cross-shift movement of the depending end 10 of a manual five-speeds and reverse gear-shift lever between the 2nd-3rd speed slot II, III of a fixed gate 17, having at least three offset forward-speed slots, and the offset 1st speed slot I, the cross-shift movement to slot I is opposed by a transverse spring-plunger 33 pressing directly on a lock-plate 16, guided for transverse movement only, with the shift-lever 10, on the fixed gate 17 and having a single longitudinal slot in which the lever 10 makes its gear-establishing movements. The spring- plunger 33 has its rightward movement positively limited by a fixed shoulder 36 corresponding to the II, III gate-slot, so that the crossshift movement thereto from the I slot is spring- assisted only as far as the former slot, facilitating a continuous longitudinal movement from I to II, which is further facilitated by a radius 38 at the entry to slot II. To permit use of a relatively weak spring for the plunger 33, the latter is acted on by a spring detent 41, engaging in the II, III position a notch 44 in the plunger, so that, in downshifting from II to I, the driver must first overcome the detent 41 by a jerk, and later the light resistance of the plunger 33 alone, the I slot being defined by the detent 41 entering a second notch 45 in the plunger 33. Further cross-shift movement to the offset reverse slot R is similarly opposed by the plunger 33 after freeing the detent 41. Shifts between the 2nd, 3rd and 4th, 5th speed slots II, III and IV, V are unaffected.