baber/WOPTO huggingface dataset:
Patent GB-767507-A (GB)
Title: Improvements relating to methods of and machines for forming screw threads on fastening elements
IPC: B23G1/06
Filed: 1953-09-23
Abstract: 767,507. Screwing. WINWOOD, D. G. A., and MASON, R. V. Dec. 21, 1954 [Sept. 23, 1953; Nov. 25, 1953], Nos. 26171/53 and 32655/53. Class 83 (3). A machine for screw-threading the pointed or " gimlet " end 18 of a screw 16 comprises a holder for a screw-blank, a first tool-holder 24 to support a thread-cutting tool 23 for cutting a parallel or slightly tapered thread on the screw shank or to support a nut-member for engaging a thread on the shank, a second tool-holder 30 to support a tool 31 for cutting the thread on the pointed end, and means 37, 38 for moving the second holder towards the axis of the blank. The tool-holder assembly is held in a tailstock 12 and can be moved angularly by a handle 29 within limits determined by a stop 46, not only to close the tool-holders 23 towards the work against spring-pressure by an amount determined by cam-slots 28, but also to move the rollers 37 into the path of the cams 38. If the shank of the screw-blank is unthreaded, the dies 23 cut the thread thereon as the tailstock is traversed away from the screw-head, by a lead-screw rotated in correct ratio to the rotation of the blank. At the end of the traverse the rollers 37 engage the cams 38 and are moved in a straight or curved tapered path to thread the pointed end. If the shank of the screw is slightly tapered, a longitudinal camslot on the machine bed rotates the member formed with the cam-slots 28 to produce the taper. Alternatively, a set of rollers and cams such as 37, 38 is provided for this purpose. If the shank is already threaded, the dies 23 are replaced by nut-members to provide an automatic feed when the blank is rotated. If the screw-blank is not initially tapered at its end, the thread is cut thereon in a series of steps by arranging for an incremental radial in-feed of the cams 38.
Patent GB-628429-A (GB)
Title: Improvements in or relating to electrical pin-plugs
IPC: H01R13/68
Filed: 1947-09-26
Abstract: 628,429. Two-part couplings. BRITISH MECHANICAL PRODUCTIONS, Ltd., and OSBORN, F. T. Sept. 26, 1947, No. 26180. [Class 38 (i)] In a fused plug a cartridge fuse 7 is mounted in a rotatable carrier 20 in the plug body, movable by means accessible from outside the body from a position where the fuse is alive to one in which it can be safely removed, when the plug is out' of its socket. The movement of the carrier is limited by a pin which abuts stops on a central boss 26 having a radial extension 18 to form a guide for the fuse of which the end caps 32 ride on springs 34 in the carrier. The extension 18 may be cam-shaped and tapered to assist the contact between the springs and the end caps, and the ejection of the fuse, which may also be effected by a spring. A kerf 36 in the exposed end of the carrier enables it to be rotated. A third position may be provided for the carrier so. that it acts as a switch to break the current.
Patent GB-1155550-A (GB)
Title: Process for the Manufacture of Pigment Preparations suitable for Printing Surfaces of Synthethic Materials and of Metals
IPC: C09B67/20
Filed: 1967-06-07
Abstract: 1,155,550. Pigment composition. FARBWERKE HOECHST A.G. 7 June, 1967 [7 June, 1966], No. 26324/67. Heading C3P. [Also in Division D1] A dry, non-dusting pigment preparation which contains a pigment and a carrier substance consisting of a mixture of (a) a terpolymer comprising vinyl chloride, vinyl acetate and a dicarboxylic acid having a -CH = CH- group, preferably maleic acid, and (b) a bispolymer comprising vinyl chloride and vinyl acetate units and optionally a stabilizer is prepared by mixing a pigment without use of a solvent at 110-160‹ C. with the solid carrier as above. The pigment is organic or inorganic and in the examples the stabilizer is di-n-octyl tin bis-(thioglycolic acid octyl ester) and epoxidized soya bean oil.
Patent GB-352798-A (GB)
Title: Improvements in diaphragms for sound receiving, reproducing, amplifying and transmitting instruments
IPC: H04R7/12
Filed: 1930-09-03
Abstract: 352,798. Diaphragms. SCHMIDT, H., 31<11>, Schutzenstrasse, Jena, Germany. Sept. 3, 1930, No. 26327. Convention date, Oct. 15, 1929. [Class 40 (iv).] An acoustic diaphragm consists of a thin sheet of material a having strips c of fibrous material stuck thereto in close contiguity to each other so as to form a continuous fibrous layer, the fibres of the layer extending at all parts of the diaphragm substantially in the direction in which the vibration waves are to be transmitted in the material of the diaphragm. The sheet a is preferably of paper and the strips c are straw stalks slit open, steamed and flattened. In the construction shown, the diaphragm is of conical or truncated cone shape but the invention may be applied to diaphragms of any desired shape, including shapes in which the strips lie parallel side by side.
Patent GB-1475954-A (GB)
Title: Escalator type conveyor
IPC: A01K43/00
Filed: 1975-06-20
Abstract: 1475954 Conveying eggs DIAMOND INTERNATIONAL CORP 20 June 1975 [13 March 1975] 26343/75 Heading B8A Eggs are conveyed upwardly or downwardly on an endless-chain elevator having V-shaped flights 21. A pivotally-mounted dead-plate 12, is positioned between the elevator and an upstream/downstream conveyer 11.
Patent GB-641610-A (GB)
Title: Improvements in or relating to swash plate pumps
IPC: F04B1/12
Filed: 1947-09-30
Abstract: 641,610. Swash-plate pumps. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. W. Sept. 30, 1947, No. 26348. [Class 102(i)] A swash-plate pump in which the pistons 6 are acutated in the suction stroke by the wobble member 15 and on the delivery stroke by springs 17; a rubber ring 19 is provided on each piston to reduce shocks. The pistons control suction ports 34 in the cylinder sleeves 21 and the output of each cylinder may in addition be varied by axial adjustment of the sleeve 21 in the pump housing by the screw threads 23. A delivery valve housing 26 is retained in position by the pipe union 32 and nut 33 and the ball valve 28 engages a holder 29 guided in the sleeve 30. The inlet pipe 2 may be provided with a filter as described in Specification 632,412.
Patent GB-497634-A (GB)
Title: Improvements in or relating to seals for electric discharge vessels
IPC: H01J5/32
Filed: 1937-03-19
Abstract: 497,634. Ceramic seals for electric discharge apparatus. LORENZ AKT.-GES., C. March 19, 1937, No. 26388/38. Convention date, March 20, 1936. Divided out of 492,659. [Class 36] In an electric discharge vessel having a ceramic closure member sealed to the bulb of the vessel by a glass or metal melt, a thin metal coating is provided on that surface of the closure member to which the melt is applied. The bulb may be of metal, ceramic material, or glass. The coating metal, which may be applied galvanically, or by spraying, burning, or melting on, may be copper, nickel, or chromium, but where a metal bulb is employed the coating is preferably of the same metal as the bulb. Alternatively, the bulb may be coated with the same metal as the closure member in the vicinity of the latter. Lead-in wires passing through the closure member may be sealed in the closure member by metal fluxes ; or the melt which seals the closure member may also seal the lead-in wires. In the construction shown, a ceramic disc 56 having a metal coating 57 is sealed in the shouldered end of a metal bulb 62 by a glass melt 59. Conductors 61, serving as contacts and electrode supports are sealed into the disc by the glass melt. The metal coating is removed from the disc in the vicinity of the apertures therein through which the conductors pass.
Patent GB-223734-A (GB)
Title: Improvements in shuttle operating mechanism for looms for weaving
IPC: D03D49/44
Filed: 1923-10-23
Abstract: 223,734. Hoyle, L. Oct. 23, 1923. Picking-motions; shuttles.-The picking is effected by solenoids b, b<1> placed on the inner sides of and clear of the shuttle-boxes a, a<1>, which are earthed by means of wires i and are provided with contacts e, f, e<1>, f<1> connected to the solenoids b, b<1> and to solenoids k, k<1>. A contact-maker o is regularly operated to engage either a contact ! l connected to the solenoids k, k<1> or a contact n connected to a switch m. When the shuttle enters the box a, it operates a pivoted swell g, controlled by a spring, and a circuit is closed through the contact e, the solenoid k, and the contact l, with which the contactmaker o at this time engages. The solenoid k is thus energized and the switch m is thereby moved into engagement with a contact j. When the lay is at back centre with the raceway in line with the shuttle-boxes, the contact-maker o is moved over to the contact n and a circuit is established through the switch m, the contacts j, the solenoid b, and the contact f, so that the solenoid b is energized and the shuttle is drawn out of the box into the solenoid. As the shuttle reaches the magnetic centre of the solenoid, the release of the swell g opens the contacts e, f and breaks the circuit through the solenoid b, leaving the shuttle to travel across the loom owing to its acquired speed into the box a'. The picking from the box a<1> is effected in a similar manner. The boxes a, a<1> may be mounted independently of the lay. The solenoids may be mounted on and may move with the lay. The invention may be employed on a change-box loom. The contactmaker o may comprise a rotating shaft provided with diametrically opposed segments, or a sliding member operated by or from a suitable moving part of the loom such as one of the lay swords. Condensers may be used to reduce sparking. Cheeking shuttles.-The shuttle may be brought to rest in a definite position in the shuttle-box it enters by an electromagnet disposed in the box and excited under the control of the timing mechanism. According to the Provisional Specification, the commutator used for the picking mechanism solenoids or a separate commutator may be used.
Patent GB-407101-A (GB)
Title: Improvements in or relating to operating means for brakes, clutches, and other devices operated by fluid pressure
IPC: B64C25/44
Filed: 1932-09-22
Abstract: 407,101. Hydraulic transmission of power. AVERY, W. L., The Blue House, Thorley, Bishop's Stortford, Hertfordshire. Sept. 22, 1932, No. 26412. [Class 69 (ii).] In fluid-pressure operating mechanism for brakes, clutches,&c. of the kind in which fluid is expelled from a chamber or cylinder to effect the operation, a valve by which a fluid supply is connected to the chamber is arranged to be actuated by movement of the chamber. An operating cylinder 1 for the wheel brakes of an aeroplane is mounted on trunnions 2 and the piston rod 7 is connected to a pedal 8 which is also the rudder control, the arrangement being such that pressure on the part 10 operates the rudder through a lever 9 while pressure by the heel on the part 11 operates the rod 7 whereby fluid is expelled to the brake cylinders through passages 4, 5, 6. Normally, a valve 13 mounted in a casing carried by the cylinder is held open by engagement of the valve rod 18 with a fixed pin 21 to connect a passage 12 from a supply reservoir to the passage 5, 6 to keep the system filled but the swinging movement of the cylinder on the trunnions 2 consequent upon the depression of the pedal to apply the brakes causes the valve rod to leave the pin 21 so that the valve is closed by the spring 14.
Patent GB-260296-A (GB)
Title: Arrangement for exciting a.c. motors
IPC: H02K17/38
Filed: 1926-10-22
Abstract: 260,296. Gratzmuller, L. R. E. Oct. 24. 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Alternating-current induction machines.- Magnetizing current is supplied to the rotary or stationary secondary winding of a polyphase motor from the brushes of a separately driven exciter of the commutator type. The stator winding of the exciter may be in series or in shunt with the armature or it may comprise a short-circuited phase winding, a squirrel cage,. or both together. The motor may have an auxiliary polyphase winding for starting. The exciter may supply the secondary winding of the second motor in a cascade set.
Patent GB-870281-A (GB)
Title: Improvements in or relating to traffic data recording means
Inventor: WILLIAMS NORMAN
IPC: G08G1/127
Filed: 1958-08-18
Abstract: 870,281. Recording-apparatus. SCOTT & CO. (ELECTRICAL ENGINEERS) Ltd., JAMES. Aug. 13, 1959 [Aug. 18, 1958], No. 26496/58. Class 106 (4). Traffic data recording apparatus for a multiroute omnibus system comprises a plurality of signal transmitters 2 on two or more routes, each transmitter being adapted to transmit identification signals when operated by a key 1 identifying the route (9) and/or serial number (10) of an omnibus, a receiver 4 for each transmitter 2 and a recorder 5 operated by the receiver 4 to record on a time base operation of the transmitter 2 by the key 1. The transmitters 2 are connected by signal wires 3 to a central station where each receiver 4 has a number of recorders 5, one to each route served by the associated transmitter 2. Each recorder 5 has a fixed type 7 for printing a route symbol and two rollers 8 for printing an omnibus serial number. Each transmitter 2, when correctlyactuated by a key 1, translates the symbols 9, 10 on the key into a train of three groups of electric pulses, such as those used in telephone dialling systems and this train is transmitted by means of the wires 3 to a gate 11, e.g. a uniselector step switch, associated with each receiver 4. The first group representing the route number operates the gate 11 so that the other groups representing the omnibus serial number pass to the recorder 5 corresponding to the route number, where they operate to turn the rollers 8. The gate 11 then generates a signal causing the recorder to print the route and serial numbers on a paper strip 6 carrying a time scale 12. After the print-out signal the gate 11 generates a resetting signal for returning the rollers 8 to initial position. The strip 6 may be driven continuously or intermittently, its time scale being synchronized with the correct time before use or the time may be printed on the strip each time a signal is received. Other arrangements are envisaged, e.g. the recorders in a receiver may correspond to different transmitters on the same route, thus as an omnibus traverses its route and successively operates each transmitter its serial number is printed in succession by the recorders. Each transmitter may be connected to two receivers, one operating in each of two systems. The symbols on a key may be in the form of embossments, punched holes or indentations in the edge of the key. Clock cards may be used and may carry the symbols in the form of conducting strips for brushing contacts or for co-operating with a capacitive type probe or black lines may be used with an optical pick-up. By selection from four markings, sixteen different combinations can be obtained, with four relays signals may be combined to give one of sixteen " tones " suitable for transmission by telephone line and at the central receiver ten recorders may be used to present the required data.
Patent GB-683728-A (GB)
Title: An improved cap for the heads of pit props
Inventor: REMINGTON JOHN GORDON
IPC: E21D15/00
Filed: 1950-10-31
Abstract: 683,728. Pit props. TRIST & CO., Ltd., H. H. P. Aug. 15, 1951 [Oct. 31, 1950], No. 26579/50. Class 20(ii) A cap for a pi prop comprises a moulding a asbes tos laminae having metal tags ( embedded in it which are bent under the prop head b to secure the cap. In a modification the tags are part of a metal ring embedded in the periphery of the cap.
Patent GB-903682-A (GB)
Title: An improved method for the manufacture of chlorine by the oxidation of hydrochloric acid
Inventor: BAUMGARTNER PIERRE
IPC: C01B7/04
Filed: 1960-07-29
Abstract: Gaseous hydrogen chloride is oxidized to chlorine by countercurrent reaction with an aqueous mixture of nitric acid and a less volatile mineral acid, e.g. sulphuric or perchloric acid, containing <PICT:0903682/III/1> less than 30% by weight of water.  The aqueous mixture may contain 10-40% nitric acid, 45-90% other mineral acid, and 5-25% water. The reaction may be unobstructed or may contain baffle plates or Raschig rings.  The temperature of reaction may be 40 DEG -80 DEG C.  The reaction pressure may be at, above, or below atmospheric pressure. Oxides of nitrogen may be removed from the gaseous reaction product by fractional distillation or by absorption in aqueous sulphuric acid of greater than 60% concentration.  The resulting sulphuric acid solution may be added to the oxidizing mixture or oxides of nitrogen may be distilled therefrom.  Nitric acid for recycling may be produced from the oxides of nitrogen by treatment with air or oxygen in the presence of the effluent reaction product solution or nitric acid distilled therefrom.  As shown, hydrogen chloride gas is passed from a line 2 up through a tower 1 in countercurrent to sulphuric and nitric acids passed from lines 3 and 4 respectively.  The resulting gas is passed to a distillation column 6 via a line 5, chlorine passing off via line 7 and oxides of nitrogen passing via line 8 to a reactor 9 wherein they are converted to nitric acid, oxygen or air being passed in through line 15 and nitric acid being passed in via line 14 from a fractionation column 11 fed with reaction product solution from reactor 1 via line 10. Sulphuric acid from fractionation column 11 is concentrated in fractionation column 13, water passing off through line 14 and concentrated acid being recycled via line 3.
Patent GB-297827-A (GB)
Title: Improved apparatus for cutting machine-made cigarettes
IPC: A24C5/28
Filed: 1928-09-18
Abstract: 297,827. Backx, F., and Loore, J. de. Sept. 29, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Cigarette-making machines. - In a cutting-mechanism for continuous-rod machines in which a rotary cutter moves laterally during cutting at the speed of the cigarette rod, the lateral movement is effected by the oscillation of the cutter spindle and the elements supporting the spindle. As shown, the cutter 8 is clamped to a head 7 on a spindle 9 connected by bevel gearing 10, 15 to a shaft 14 driven through helical gearing 5, 13 from a main shaft 3. The cutter spindle 9 rotates in bearings 11 a member 12 oscillated about the shaft 14 by a connecting-rod 22 and a crank disc 35 driven from the shaft 3 through bevel gearing 4, 37. A guide tube 6 for the cigarette rod, having a slit 25 for the passage of the cutter, is carried by a carriage 24 reciprocated from the crank disc 35 by a connecting-rod 23. The spindle 26 of the carriage 24 slides in guides 27 - - 29, and the mechanism is enclosed in an oil-tight casing 10. In order to prevent the cutter from being lamaged on encountering a hard body in the rod, the helical gear 5 is driven from the shaft 3 through a pair of discs 43, 46 held in contact by a spring 42. The disc 43 slides in splines on a sleeve 40 secured to the shaft 3, and the discs have inclined faces 48 which override one another if the cutter encounters a resistance.
Patent GB-1481704-A (GB)
Title: Composite cable
IPC: D07B1/02
Filed: 1974-06-17
Abstract: 1481704 Glass fibre cables W C BLATCHFORD (Norfin Inc) 17 June 1974 26751/74 Heading D1T A cable comprising multiple layers of helically stranded glass fibre rovings with each filament of each roving surrounded by a cured elastomeric sheath bonded to the elastomeric sheaths surrounding adjacent filaments is characterised in that the rovings of all the layers have the same helical angle which has been selected so that the cable under a given tensile load will have a predetermined parameter of change of length, if any, with change of temperature. The helical angle is preferably not more than 12‹ and may be such that the cable will have a nil change of length with change of temperature. A preferred helical range is 5‹ to 9‹. The elastomer may be a urethane elastomer.
Patent GB-1329162-A (GB)
Title: Process for the decomposition of ammonia
IPC: C01B3/04
Filed: 1971-04-19
Abstract: 1329162 Catalytic reactor VARTA AG 19 April 1971 [13 April 1970] 26780/71 Heading B1F [Also in Division C1] A catalyst for the decomposition of ammonia into hydrogen and nitrogen consists of a finely divided alloy of nickel and iron and/or cobalt, the iron and/or cobalt being 5-80% preferably 8-20%. The alloy is derived in the Raney manner, i.e. an alloy of iron, nickel and inactive aluminium is leached of the latter to give a porous powder structure which is then compacted and hot pressed into a desired shape. A surface layer of the powder may be oxidised so as to be non-pyrophoric. Alternatively, the alloy may be aggregated with another metallic powder, e.g. nickel carbonyl. which acts as a supporting skeleton to aid heat transfer- and a removable pore former, e.g. NaCl or Na 2 CO 3  may be added, the mixture finally being pressed into a desired shape and sintered. The catalyst body so produced may be a flat disc or plate optionally having a central opening, which is placed across a metal tube through which hot ammonia is directed, a series of discs and tubes may be used. If the disc has a central opening then its upper and lower surfaces are made gas tight with an asbestos plate and a copper ring with a circumferential opening is fitted around its edge. Ammonia fed into the central hole then percolates radially through the catalyst, heated to 500-720C preferably 600-700C, the product gases being collected in the copper ring. The apparatus may comprise many catalyst tubes, the ammonia being initially preheated either by butane burners from below or by heat generated by burning a portion of the product gas.
Patent GB-1476505-A (GB)
Title: Gear unit
IPC: B63H23/32
Filed: 1974-06-17
Abstract: 1476505 Transmission gearing WESER AG 17 June 1974 [16 June 1973] 26784/74 Heading B7V [Also in Division F2] In a gear unit for ship propulsion, the gear casing 8, 9, is mounted on two resilient support members 12, 13, which permit a tilting displacement of the gear unit about a transverse axis which crosses the main gear axis at right angles, and which also permits displacement of each end of the gear unit in a direction parallel with that transverse axis. Adverse effects of shaft misalignment arising from distortion of the ship structure in use, or from thermal expansion, are thereby minimized. Each support 12, 13, includes an inner bush 16 secured to the casing portion 9, a concentric outer bush 17 secured to a foot 14, and a set of elastically deformable radial spokes 15 attached between the bushes 16 and 17, forming torsion spring elements. Each support may include two sets of spokes 15. A central groove 19, parallel with the gear axis, on the underside of the gear unit, engaging a rib 20 on the foundation below, provides a locating means for alignment of the gear unit shaft axis. An additional arrangement of interconnected hydraulic cushion units, Figs. 7, 8 (not shown), may be used to support the bulk of the weight of the gear unit.