baber/WOPTO huggingface dataset:
Patent GB-1378141-A (GB)
Title: Machinery guard
IPC: F16P1/00
Filed: 1971-12-20
Abstract: 1378141 Machinery guards F MOUNTFORD 20 Dec 1971 [26 Sept 1970] 45936/70 Heading F2J 4 A guard for a machine (e.g. a drill 1, 10, 11) comprises a bracket 2 mountable (e.g. as at 3) to a fixed part of the machine and a pair of movable guard members 5 carried by arms 4 pivoted to the bracket (e.g. about rod 6) and movable between a position (shown) forming a tubular guard for a spindle &c. of the machine and a retracted position for access. Both these positions may be defined by stops 9, 8 engaging the arms 4. The arms are retained in each of these positions by a spring 7 which crosses the rod axis 6 when the guard moves between its end positions.
Patent GB-1126625-A (GB)
Title: Anchoring arrangements suitable for pipe lines connected to steam vessels
Inventor: HARRIS FRANK ROSSLYN
IPC: F01D13/02
Filed: 1964-11-11
Abstract: 1,126,625. Pipe supporting; pipe joints. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 Sept., 1965 [11 Nov., 1964], No. 45968/64. Headings F2G and F2P. A pipe line anchoring arrangement to absorb thermal expansions and contractions, particularly between a steam turbine 1 and a re-heat unit (not shown), comprises a curved pipe section 10 connected to an aligned first tube member 9 by a first flexible bellows 8, a second flexible bellows 7 connecting the first tube member to a second aligned tube member 4, closeended aligned third and fourth tube members 16 and 17, which are interconnected by a third bellows 13 aligned with, and lying on the side of the curved pipe section, remote from the first tube member, and anchor means 12 rigidly connecting the curved pipe section and the third tube member to a foundation 11. Tie rods 15 interconnect the second and fourth tube members and a duct 18 interconnects the interiors of the third and fourth members with the interior of the curved pipe section. As illustrated, each exhaust branch 2 and 3 of a turbine are connected to pipe line to a re-heat unit by an arrangement as described above, the two units being anchored by the common anchor 12. Each arrangement permits the axial thrust component along the tube members 4, 9, and 10 due to the fluid pressure therein to be counteracted by the fluid pressure in the third tube member, the reactive thrust on the fourth member being transmitted to the second tube member by the tie rods and countering the axial thrust thereon.
Patent GB-1068277-A (GB)
Title: A bearing arrangement with an anisotropic diamagnetic body
IPC: G01R11/14
Filed: 1965-10-29
Abstract: 1,068,277. Bearings. MAGNETFABRIK BONN G.m.b.H. Oct. 29, 1965 [Oct. 30, 1964], No. 45995/65. Heading F2A. A bearing comprises a diamagnetic body suspended in an inhomogeneous magnetic field, the body being magnetically anisotropic. A supporting or guiding force exerted by an inhomogeneous magnetic field on a diamagnetic body which is formed from magnetically anisotropic parts, is greater than when the parts are arranged in a disordered manner. The diamagnetic body may comprise a hexagonal crystal or crystals which have the hexad axis or axes coinciding with the direction of the magnetic field, and may be in the form of a ring having a rectangular or trapezoidal cross-section or having a combination rectangular and trapezoidal cross-section. The diamagnetic body may be made of graphite and may be pressed from graphite powder, with or without a binder, a magnetic field being present during the pressing. In an embodiment, a diamagnetic ring (2), Fig. 3 (not shown), is composed of graphite crystals having their hexad axes (1) radially directed and is disposed in an inhomogeneous ring-shaped field having an outer pole (3) and an inner pole (4). The ring (2) is connected to a spindle (5) by a non-magnetic disc (6) and the magnetic field is maintained by a permanent magnet (7). In another embodiment, a graphite ring (9), Fig. 4 (not shown), is disposed in an inhomogeneous field of a magnet (8), the crystals of the ring (9) have their hexad axes (1) vertical, the ring (9) is connected to a spindle (11) by a disc (12), and the ring (9) is centred by the magnetic field so as to guide the spindle (11).
Patent GB-1318976-A (GB)
Title: Semi-conductor devices
IPC: H01L23/29
Filed: 1970-09-28
Abstract: 1318976 Semi-conductor devices SOC GENERALE SEMICONDUTTORI SpA 28 Sept 1970 [7 Nov 1969] 46079/70 Heading H1K A MOS device is produced in an N-type Si substrate (1) by forming a thin SiO 2  layer (2) by oxidizing the surface, depositing a layer (3) of Si 3 N 4  by pyrolytic decomposition, depositing a thick layer (4) of SiO 2  also by pyrolytic decomposition, depositing a second Si 3 N 4  layer (5) and a further SiO 2  layer (6). A photo-resist mask is used to etch two windows (7) in the outer SiO 2  layer (6) and the windows are extended down to the surface of the wafer by alternately selectively etching the Si 3 N 4  and SiO 2  layers during which steps the outer SiO 2  and Si 3 N 4  layers (6, 5) are also removed. B is then predeposited and diffused-in to form source and drain regions (8). A thin oxide layer (9a) forms during the diffusions and the wafer is thermally oxidized to form a thick oxide layer (9) in the diffusion windows. A layer (10) of Si 3 N 4  and a layer (11) of SiO 2  are deposited over the whole surface. A photoresist mask is used to open apertures in the outer oxide layer (11) corresponding to the sides of the source and drain contacts and of the gate electrode. The exposed parts of the Si 3 N 4  layer (10) are selectively removed and the thus exposed parts of the SiO 2  layers (9, 4) together with the remaining parts of the outer SiO 2  layer (11) are then selectively removed to expose the wafer surface at the contact sites 7 and leaving the thin thermal SiO 2  layer (2) and the overlying Si 3 N 4  layer 3 at the gate site 12. A layer of Al is then deposited over the surface, masked to form the source, drain and gate electrodes and alloyed to the Si substrate in the contact windows. The thick layer (4) of SiO 2  may be deposited in two stages with an intermediate sintering step. If the wafer is of P-type Si the source and drain regions may be formed by diffusion of P.
Patent GB-1590919-A (GB)
Title: Workpiece processing systems
IPC: H02K15/00
Filed: 1977-11-08
Abstract: The conveyor (5) is flexible and can transport workpieces which are to undergo several processing stages at machine stations (12, 14, 16, 18) arranged along the upper active path. A feeder (10) and each machine station can deposit a single workpiece in predetermined seats on the conveyor; each machine station is also able to pick up a workpiece from only predetermined seats; sensor means (32) detect the state of the conveyor moment by moment and other sensors (38 - 44) detect whether the seats are empty or occupied, in order to authorise the deposition or pick-up of a workpiece. A workpiece which, having travelled along the active path, has not undergone all the processing stages provided along said path, is sent back through another cycle. Application to the formation of rotors for electric machines. <IMAGE>
Patent GB-1236650-A (GB)
Title: Hinged rotor blade attachment for helicopter rotors
Inventor: FISCHER CHRISTOPH
IPC: B64C27/37
Filed: 1968-09-30
Abstract: 1,236,650. Helicopter rotor blade attachment. VEREINIGTE FLUGTECHNISCHEWERKE G.m.b.H. 30 Sept., 1968, No. 46392/68. Heading B7W. A helicopter rotor assembly comprises a rotor hub 3 rigidly connected to a rotor shaft and a pair of diammetrically opposed rotor blades 1 wherein each blade has a forked root end 2 partially embracing the hub and a bladeretaining, flapping hinge bolt 8 which extends between the forks and passes through distance pieces 9 which prevent relative root end/bolt movement and a ball-and-socket joint 7, 5 comprising a ball element 7 rigidly connected to said bolt and having a part-spherical surface that mates with a socket element 5 mounted within the hub by circlips 6. The bolts carry at one end a control lever 12 connected to pitch changing apparatus and are interconnected by lag-lead movement dampers 14. Noses 10 on the hub are received into respective recesses 11 on each root end 1 to restrict blade flapping and lag-lead movement when the blades are inoperative. An embodiment is described wherein each damper is supported partly by a bolt 8 and partly by a hub mounted pin. In a further embodiment dampers are replaced by members sufficiently stiff to prevent lag-lead movement. Each bolt 8 may be rotated through 90 degrees to coincide with the lag axis.
Patent GB-1367774-A (GB)
Title: 1,2,3,4,9,9-hexahalo 1,4-dhiydro-1,4, methanonaphthalene derivatives  and their use as fire retardants
IPC: C07F9/12
Filed: 1971-10-06
Abstract: 1367774 Methanonaphthalenes and dimethanoanthracenes UNIROYAL Inc 6 Oct 1971 [14 Oct 1970] 46474/71 Headings C2C and C2P [Also in Division C3] The invention comprises compounds having the general formulµ wherein R 15  and R 16  are hydrogen atoms or together form the group Z being oxygen when R 15  and R 16  form the group (IA), and Z is =NOH where R 15  and R 16  are hydrogen atoms wherein Y is oxygen or =NOH, R 17  and R 18  being hydrogen, tertiary butyl (at least one of R 17  and R 18  being t-butyl) or together forming the group (IA), and R 17  and R 18  being hydrogen when Y is = NOH wherein R 19  and R 20 , which may be the same or different, are hydrogen, alkyl, haloalkyl, hydroxyalkyl, -(CH 2 ) n COOH (n being 1 to 5), -CH 2 CH=CH-R 23  (R 23  being hydrogen or haloalkyl), -SO 2 -R 24  (R 24  being alkyl, haloalkyl or aryl) (R 25  and R 26  being alkyl or haloalkyl) (R 27  and R 28  being alkoxy) or -CO.-R 29  (R 29  being alkyl, haloalkyl, alkoxy, aryl or NHR 30  where R 30  is alkyl) and R 21  and R 22 , which may be the same or different, are hydrogen, alkyl, haloalkyl, -SO 2 -R 24 , -CO.-R 29 , with the proviso that when both R 19  and R 20  are -CO.-R 29  then R 21  and R 22  may also be halogen, and when R 19  and R 20  are both hydrogen then at least one of R 21  and R 22  is other than hydrogen or C 1-4  alkyl, or R 21  and R 22  together form the group (IA) wherein R 31  and R 32 , which may be the same or different, are hydrogen, alkyl, haloalkyl, -SO 2 -R 24 , -S-R 33  (R 33  being hydrogen, alkyl or haloalkyl) or R 31  and R 32  taken together are -O-; or X in all the foregoing formulµ being halogen. They may be prepared by the Diels-Alder reaction from a hexahalocyclopentadiene and an appropriately substituted benzoquinone compound followed optionally by known reactions for changing the degree of saturation or functional groups. The compounds of the invention may be used as fire retardants for polymeric materials.
Patent GB-1149504-A (GB)
Title: Improvements in or relating to 19-methyl-19-oxo derivatives of androstane and pregnane
IPC: C07J75/00
Filed: 1966-04-01
Abstract: 1,149,504. 10-Acetyl-steroids. SYNTEX CORP. 1 April, 1966 [2 April, 1965], No. 46514/68. Divided out of 1,149,503. Heading C2U. Novel steroids of the formula (wherein the symbols have the meanings defined in the parent Specification 1,149,503) but excluding the known 17α,19-dimethyl-#<SP>4</SP>-androsten - 17# - ol - 3,19 - dione and 17α,19 - dimethyl - #<SP>5</SP> - androstene - 3#,17# - diol - 19- one; and the novel 19-methyl-pregn-4-ene- 3,20 - diol - 19 - one, 19 - methyl - 17,20; 20, 21- bismethylenedioxy - pregn - 4 - en - 3 - ol - 19- one and 19 - methyl - 17,20; 20,21 - bismethylenedioxy - pregn - 4 - ene - 3,19 - dione, are prepared by reaction of the corresponding 10-fluorocarbonyl steroids with methyl Grignard reagents. Other keto groups are protected by selective reduction and subsequently oxidized. 19 - Methyl - pregn - 4 - ene - 3,20 - diol - 19 - one may also be oxidized to the known 19-methylpregn-4-ene-3,19,20-trione. Reference has been directed by the Comptroller to Specification 1,037,162.
Patent GB-1011302-A (GB)
Title: Sharp-edged metal articles and methods of making the same
IPC: A61B17/34
Filed: 1962-12-10
Abstract: 1,011,302. Making hypodermic needles. H. DUNMIRE. Dec. 10, 1962 [Dec. 8, 1961], No. 46596/62. Heading B3A. [Also in Division A5] A sharp.pointed article, particularly a hypodermic needle, is made from a work hardenable metal blank 5, Fig. 4, by cold working the portion 42 to be sharpened so as to reduce its thickness and cause work hardening. A flat strip of metal 5, Fig. 2, preferably of nickelchrome steel, brass or plated carbon steel, is punched out to leave a tongue 42 and this is tapered at 44 in coining or swaging dies with consequent work hardening to give a sharp point. A blank 51 with parallel sides 52, 53 and including the hardened tip 57 is partially punched from the strip and displaced out of its plane, but remains connected thereto at 58; simultaneously the point is bent inwardly towards the strip, Fig. 5 (not shown). In the next step the blank 60 is folded about its axis into U-section and is then bent upwardly perpendicular to the plane of the strip. The sides 52, 53 are then closed into a tube 28, Fig. 1, and a base 26 with the needle upstanding therefrom is punched out of the strip. The finished needle thus has its point 57a, Fig. 8, formed without grinding to less thickness than the wall of the tube. The resulting discharge aperture has sharp cutting edges to assist penetration of the needle. The latter 28 is used in a disposable injection device, Fig. 1, having a body portion 20 with its flange 22 sealed to a base 35 carrying a gland 36 which is pierced by the needle during the injection. The body and flange may be of polyvinyl compounds of polyethylene with a metal insert ring 41 or may be of plastic coated metal foil. The shape of the body is stated to prevent it expanding elastically after being collapsed during an injection. Reference is also made to making surgical needles and sulines. Specifications 770,341 and 1,011,301 are referred to.
Patent GB-1327088-A (GB)
Title: Crop handling equipment
IPC: F26B17/02
Filed: 1970-10-01
Abstract: 1327088 Agricultural drying vehicle; endless conveyers for harvested crop C VAN DER LELY NV 1 Oct 1970 [7 Oct 1969] 46835/70 Headings B8A and B8E Crop received in bulk in a chamber 1 is separated at one end of the chamber (as described in Specification 1,327,088) by conveying means into quantities which are small in relation to the capacity of the chamber 1 and supplied to the other end of the chamber, a conveyer being arranged in the space to move crop that has been discharged by the conveying means back towards said one end of the chamber 1. In an embodiment (Fig. 1) crop is delivered by a crop pick-up trailer (not shown) through the doorway 10 (the flap 9 being lowered), is circulated by a conveyer 13, is picked up by the tines 33 of a conveyer 20, and is released from the conveyer 20 near the front of the chamber 1, drying air heated by a burner being blown by a blower 48 into a chamber 13A whence it passes through a perforated plate 14 into the chamber 1 and escapes to atmosphere via openings in the upper regions of the side walls 2 and/or in the roof 3. The tines 33 are mounted on supports 29 pivoted to two spaced sprocket chains 28, the supports 29 being rotated 90 degrees to release the crop by the engagement of arms 34A on the supports 29 with fixed strips 37, and rotated back 90 degrees to crop-engaging positions by engagement of roller arms 35, 34 with fixed strips 41. Roller arms 35, 34 also engage channel-section guides 36 and 45 secured to the side walls 2, to maintain correct orientation of the supports 29 and tines 33. Each tine 33 passes between a pair of knifeedged scrapers 47 to ensure release of the crop therefrom. Dry crop is discharged from the drying chamber 1 by raising the flap 9 so that crop released from the tines 33 falls on to a conveyer belt 51 which delivers the crop into a blower 52 connected to a delivery pipe 53 leading to a store or treatment unit. In another embodiment, the conveyer 13 is horizontal and reversible, and the inclined section 21 of the conveyer 20 is provided with a plate which replaces the rear wall 5 and which is pivoted at the shaft 25, so that it can be swung up to a near-horizontal position to provide access whereby crop may be discharged from a vehicle on to the top of conveyer 13 for loading the chamber 1. The doors at 10 may hence be dispensed with, or loading can take place at front and rear. In a further embodiment, the side and end walls and the roof of the chamber 1 are curved outwardly to resist atmospheric pressure when the chamber 1 is evacuated by means of a pump to assist drying. A number of cycles of introducing heated air and reducing the pressure may be performed. The moving parts may be driven from the tractor power-take-off or by electric motors or internal combustion engines.
Patent GB-1222904-A (GB)
Title: Process for producing l-tryptophan
IPC: C12P13/22
Filed: 1969-09-23
Abstract: 1,222,904. L-Tryptophan. KYOWA HAKKO KOGYO CO. Ltd. 23 Sept., 1969 [3 Oct., 1968], No. 46847/69. Heading C2C. L-Tryptophan is produced by aerobic cultivation of a micro-organism of the genera Hasenula or Candida in an aqueous media containing indole. The specific organisms mentioned are Hasenula anomala ATCC 20170 and Candida tropicalis ATCC 15114.
Patent GB-1169874-A (GB)
Title: Method of Producing Low Carbon Non-Aging Deep Drawing Steel
IPC: B22D1/00
Filed: 1966-10-21
Abstract: 1,169,874. Deoxidising steel. UNION CARBIDE CORP. Oct.21, 1966 [Oct.23, 1965], No.47136/66. Addition to 1,081,147. Heading C7D. Low-carbon non-ageing deep-drawing steel is produced by tapping into a degassing vessel a steel containing less than 0À04% each of sulphur and phosphorus and carbon at least 0À05% and above that desired in the final product, an inert atmosphere being maintained in the vessel and above the surface of the metal; an inert gas is then bubbled through the steel from below the surface thereof to reduce the carbon and oxygen contents to the desired level, at least the major part of the inert gas being introduced while the bath is substantially free from oxidizing slag, the latter being defined as one containing more than 10% of iron oxide. An amount of aluminium substantially corresponding to that desired in the product is then added and the steel cast while being shielded from contact with air. Manganese corresponding to the desired final amount is added either prior to the treatment with inert gas or together with the aluminium. The inert gas is generally one of the rare gases, although in some circumstances nitrogen may be employed. Preferably introduction of the inert gas is substantially complete before slag enters the treatment vessel, but alternatively the slag may be neutralised, either in the furnace or the treatment vessel, with a scavenging material such as aluminium shot, ferrosilicon, calcium-silicon or carbon. A formula is given from which the amount of inert gas necessary to achieve complete hulling of the steel may be determined. Extension of the process to the production of alloy steels is referred to, alloying additions being made only after the oxygen content has been reduced to a suitably low level.
Patent GB-1220896-A (GB)
Title: Substituted thiazolo-pyrimidines
Inventor: MANNING ROBERT EVERETT
IPC: C07D239/10
Filed: 1968-10-04
Abstract: 1,220,896. Sulphur - containing pyrimidine derivatives. SANDOZ Ltd. 4 Oct., 1968 [3 Nov., 1967; 2 July, 1968], No. 47160/68. Heading C2C. [Also in Division A5] The invention comprises thiazolo-pyrimidines of either of the formulµ in which R denotes a hydrogen atom or a phenyl radical, R 1  denotes a hydrogen, chlorine or fluorine atom, an alkoxy group of 1-4 carbon atoms or a phenyl radical, X denotes a hydrogen or chlorine atom or a trifluoromethyl group, A denotes a hydrogen atom, B denotes a hydroxy group, or A and B together denote a C-C bond, provided that, when X denotes chlorine, R 1  denotes chlorine also, and when X denotes a trifluoromethyl radical, R 1  denotes hydrogen. The compounds of the first formula are prepared by reacting a compound of the formula in which X 1  denotes a bromine or chlorine atom, with propylenethiourea of the formula The products of the second formula are prepared by dehydrating the products of the first formula by treatment with a strong mineral acid. The invention extends to the salts of the products with acids and also to the tautomeric equivalents of products of the first formula, these tautomers being assigned the formula Examples are given. The products have medicinal uses (see Division A5).
Patent GB-1406493-A (GB)
Title: Photographic camera
IPC: G03B17/42
Filed: 1972-10-12
Abstract: 1406493 Transport mechanism EASTMAN KODAK CO 12 Oct 1972 [14 Oct 1971] 47188/72 Heading G2A The invention comprises a camera having a mechanism for shutter tensioning, film transport, metering, and shutter release substantially as in Specification 1395992. In the present arrangement the slide 22, on being moved in the direction of arrow 24, pivots the drive member 36 anticlockwise to cock the shutter, and also engages against and pushes the rack 52 to the left to transport the film. In addition to the cam opening 26, the plate 22 has a further cam opening 32. This controls the vertical movement of a film holding member 104, which has a pin 112 engaging the camming edge of opening 32. Fig. 1 shows the position after an exposure has been made, the pawl 96 on sensing member 90 being drawn clear of the film 14, and member 104 being drawn upwards by spring 110 to enter into a film perforation. As slide 22 is moved to the left, to tension the shutter and transport the film, member 104 is drawn downwards by cam opening 32 until it is clear of the film, so that transport can take place. Member 90 is pivoted clockwise until sensing pawl 96 rests on the film surface, and drops into the next perforation, so that member 90 is drawn along by the film. When its rear end 100 is drawn clear of tab 102 on the intermediate member 70, this latter is pivoted anti-clockwise to lock into the ratchet teeth 28 on slide 22, and member 70 is drawn anti-clockwise by a spring 98 so that pawl 96 is drawn out of the film perforation. As slide 22 is released, to be drawn to the right by spring 34, cam opening 32 allows member 104 to be drawn upwards again, so that it once more enters the perforation vacated by pawl 96 (position of Fig.3, not shown). Thus the film is positively held against movement even though pawl 96 has been withdrawn.