baber/WOPTO huggingface dataset:
Patent GB-1287848-A (GB)
IPC: G11C19/10
Filed: 1970-07-29
Abstract: 1287848 Magnetic storage arrangements HUGHES AIRCRAFT CO 29 July 1970 36722/70 Heading H3B [Also in Division C7] The storage medium of a moving domain shift register comprises a thin magnetic wire under tension and having a composition of 2-5% V, 38-39% Co, remainder Fe. The wire has a diameter of 0À0003 inch, and is produced by swaging and cold drawing a cast rod. The drawing, subsequent heat treatment, and the tension applied give an easy axis of magne-  tization at about 45 degrees to the wire length, and cause the domain nucleation field Hs of the wire to be much greater than the domain wall motion field Ho. Fig. 7 shows a shift register having a cylinder of driving conductors 54, 56, around which the magnetic wire is wound under  tension. The conductors are interconnected by  wires 86 to from two sets, and receive propagation pulses from a generator 98. A write winding 58 is provided at the input end of wire 80, and a read winding at its output end. A coil or permanent magnet (not shown) prior to the write winding establishes a reference magnetization. A clock 96 controls the writing and propagation so that adjacent bits are equally spaced apart A bit may be circulated by connecting the read circuit 104 to the input circuit 100. Manufacture.-The wire is made from a cast 0À5 inch diamter rod, which is swaged to 0À25 inch diameter and then annealed at 900-1000‹ C. After quenching at a rate exceeding 250‹ C./sec., the rod is swaged to 0À125 inch, and is again annealed and quenched. The rod is then drawn to 0À03 inch, and a final reduction to 0À0003 inch is effected in a multiple die drawing machine. The wire has a b.c.c. structure, with a slip-induced radial easy axis of magnetization. This axis direction, and the other magnetic properties, is adjusted by further heating above the recrystallization temperature of 600‹ C. A suitable furnace is shown in Fig. 2, and comprises a quartz tube 24 through which the wire is drawn at 10-80 feet/min. The tube is surrounded by a heater 22, and quenching is by cold hydrogen admitted at 26. The tube ends are closed with Teflon (Registered Trade Mark) plugs 32, 34. The quenching rate is in the range 1730-2220‹ C./sec. The wire is stressed to near its yield point in use, and then has an Hs of 37 Oe and an Ho of 15 Oe, Fig. 3.
Patent GB-1287883-A (GB)
IPC: G03B27/73
Filed: 1968-09-25
Abstract: 1287883 Printing apparatus; optical filters J L J DASSONVILLE 16 Sept 1969 [25 Sept 1968] 45561/68 Headings G2A and G2J The intensity and/or spectral composition of a light beam 15 is altered by passing the beam through a liquid medium and inserting at least one of a plurality of filters 21-25, 31-35, 41-45, having different densities or spectral absorption characteristics into the liquid medium, the refractive indices of the liquid medium and the or each filter being chosen so as to reduce parasitic reflections. The filters may be grouped as shown and be used in a subtractive colour correction printing method, the filters within each of the three groups differing in spectral density. Alternatively, the printing light beam is split into a blue, green and red beam, and the intensity of each is controlled by density filters before being mixed again. The liquid medium is contained within a rigid housing 10 having light entry and exit transparent panels 11, 12. The filters may be film strips provided with a dyed gelatin layer, and suitable liquids are halogenated hydrocarbons such as trichloroethylene, trichloroethane, perchlorethylene, carbon tetrachloride and corresponding bromine compounds. The filters may be moved manually, mechanically by way of levers, by solenoids or pneumatically in which an air motor for each filter is located outside or within one wall of the housing. Reference is also made to the control of the air motors by a punched program tape. In a modified arrangement, the liquid is contained in a much greater housing and serves other purposes, e.g. biasing a master strip against a photo-sensitive strip during travel past a copying station in a contact printing apparatus.
Patent GB-1288877-A (GB)
IPC: F16C23/04
Filed: 1970-05-19
Abstract: 1288877 Making multiple sockets REX CHAINBELT Inc 19 May 1970 [21 May 1969] 24100/70 Heading E2F [Also in Division B8] A method of making ball and low-friction socket assemblies in multiple comprises securing a number of metal balls 11 end-to-end on a cylindrical arbor 20 between cores 22, shrinking a low-friction fabric sleeve 26 over the balls, simultaneously applying liquid resin and winding filaments under tension over the sleeve while rotating the arbor, hardening the resin by heating or otherwise and cutting and finishing the sections of the tube so formed around the balls to separate them and provide each with the desired socket. The fabric is preferably a woven material made from two different yarns, a low friction yarn longitudinally and a shrinkable yarn circumferentially. The resin is preferably an epoxy resin, with a selected catalyst added if required to control viscosity and curing cycle. The filaments are preferably glass filaments and are wound helically onto the balls in the form of a tape comprised by several parallel rows of filaments and the resin carried thereby.
Patent GB-1289385-A (GB)
IPC: F16K7/00
Filed: 1970-02-11
Abstract: 1289385 Dental aspirators DENTAL AB 11 Feb 1970 [14 Feb 1969] 6676/70 Heading A5R A dental aspirator comprises a separation tank 1 having an inlet 2 for dental debris and having a first outlet 3 for air separated from the debris, there being a second outlet (not shown) at the base of the tank for liquid; the apparatus also comprising a connector 9, for connecting the outlet 3 to a source of suction, and a pressure-responsive first valve 4, 5, for closing the outlet 3; a conduit 10, 11 is connected to the first valve and has an opening to atmosphere which can be opened or closed by the dentist whereby the valve 4, 5 is respectively closed or opened; the second outlet is controlled by a second valve which is operable, to open the outlet, only when the first valve is closed and there is no suction applied to the tank. The valve 4, 5 comprises a diaphragm 5 movable between the position shown, where it closes the outlet, 3 to a position adjacent to the roof 8 of the valve-chamber 4. The conduit 10 interconnects the space 7 above the diaphragm with the suction-outlet 9 so that if the outer end of the conduit 11 is closed, by the dentist, suction causes the diaphragm to lift; opening the conduit 11 to atmosphere has the opposite effect. The tank contains a filter (not shown) so that solid debris is prevented from passing through the second outlet.
Patent GB-1290807-A (GB)
IPC: C07D499/80
Filed: 1971-04-19
Abstract: 1290807 Nitroso and formyl penicillins and cephalosporins BRISTOL-MYERS CO 19 April 1971 [10 April 1970 5 Oct 1970] 26836/71 Heading C2A The invention comprises compounds of Formula I wherein R is a ring-forming moiety selected from wherein Y is hydrogen or a cation; Z is hydrogen or sodium ; and X is selected from a nitroso group, a formyl group, and additionally, when R is (i), a hydrogen atom; with the proviso that when Z is sodium, X is hydrogen. In particular, the compounds 7-(D-2,2-dimethyl-3- nitroso - 5 - oxo - 4 - phenyl - 1 - imidazolidinyl)- 3 - methyl - 3 - cephem - 4 - carboxylic acid and 7 - (D - 2,2 - dimethyl - 3 - formyl - 5 - oxo - 4- phenyl - 1 - imidazolidinyl) - 3 - methyl - 3- cephem-4-carboxylic acid. A process for the preparation of the two particular compounds mentioned above comprises treating hetacillin with a nitrosating or formylating agent, oxidizing the thus-produced N-nitroso- or N-formylhetacillin to give the corresponding sulphoxide and rearranging the sulphoxide by heating. Further, a process for the preparation of cephalexin comprises treating a compound as specifically mentioned above to convert the 7-(D- 2,2 - dimethyl - 3 - nitroso - 5 - oxo - 4 - phenyl- 1 - imidazolidinyl) - or the 7 - (D - 2,2 - dimethyl - 3 - formyl - 5 - oxo - 4 - phenyl - 1- imidazolidinyl)-group to a 7 - (D-α-aminophenylacetamido)-group.
Patent GB-1295644-A (GB)
IPC: A63B69/00
Filed: 1969-11-10
Abstract: 1295644 Golf practice device T HARRISON 19 April 1971 [10 Nov 1969 17 Feb 1970] 54815/69 and 7589/70 Heading A6D [Also in Division E2] On being struck by a golf club, a ball 1 is constrained to rotate about a pivot 3 whilst also being free to move vertically such that it strikes a spring biased, pivoted flap 4 the deflection of which, on impact by the ball, gives a measure of the distance a free ball would have travelled, whilst the club, on its followthrough, strikes a rod 12 loosely pivoted at 13 so that the rod conforms to and hence indicates the direction a free ball would have taken. As shown, movement of the flap 4 operates, through a cord 10, a pointer 9 on a scale 11. The cord may be in a lubricated groove in a base board. The rod 12 carries a loose sleeve 14, e.g. of plastics, and co-operates with a scale 16. The rod also has a spike 15 for embedding in e.g. a cork layer 17 whilst the sleeve strikes a cushion of sand 17a: a dart type flight may be included with the spike 15. The ball carrying rod 2 is placed on a member 19 to simulate the tee height and mats simulating various lie conditions may be placed beneath the ball. A simulated golf game may be played using a chart of a golf course on a metal base, a transparent distance and direction scale and a magnetic marker. A holed member is provided for use with a separate ball when putting. The flap 4 may be urged against the stop 8 by a biassing device (Division E2).
Patent GB-1295883-A (GB)
IPC: A63F7/06
Filed: 1969-12-16
Abstract: 1295883 Baseball game apparatus D S ALEXANDER JNR 16 Dec 1969 25210/72 Divided out of 1295882 Heading A6H The description is the same as in Specification 1295882 but the claims are directed to an automatic baseball game apparatus comprising means to display a playing field a representation of the flight of a ball thereacross and animation means to represent the movement of a player across the field towards the flight path in an attempt to catch the moving ball as a representation of at least another player is moved across the field.
Patent GB-1296994-A (GB)
IPC: B64C3/52
Filed: 1969-06-02
Abstract: 1296994 Variable camber aerofoils; hydrofoils DEFENCE SECRETARY OF STATE FOR 26 May 1970 [2 June 1969] 27787/69 Headings B7A and B7G A fluid dynamic structure has a skin supported on rigid internal structure 45, 47 with a portion 46 of the skin being supported by movable support means 49, 51, and an hyraulic jack 56, 57 which moves the support means 49, 51 and flexes the skin portion 46 to change the profile of the structure. The skin portion 46 forms the leading edge of an aircraft wing 44 and is secured to a frame 49 and pivotally connected to a number of movable arms 51 all of which are pivotally mounted on rigid structure 47. The hydraulic jack 56, 57, which has a power connection 59, is also pivotally mounted on structure 47 at one end, and at the other end it is pivotally attached to a crank 54 on frame 49 so that extension of the jack causes the frame to rotate and the wing leading edge to bend. The skin 46 has rollers 61 running on a track 62 fixed to the main wing 44 so that it can slide over the main wing. In another embodiment, Fig. 5 (not shown), the movable arms, frame and jack are mounted on a carrier (75) supported by trunnions (80) running on a fixed track (81) and moved by a second jack (78) so that the leading edge portion may be extended forwardly of the main wing as well as being bent. The invention may be applied to hydrodynamic as well as aerodynamic structures.
Patent GB-1305015-A (GB)
IPC: C09C1/42
Filed: 1969-03-26
Abstract: 1305015 Treatment of minerals ENGLISH CLAYS LOVERING POCHIN & CO Ltd 24 March 1970 [26 March 1969] 15925/69 Heading C1A The brightness of a silicate mineral having a layer-lattice crystal structure, especially one of the kaolin group, is improved by first contacting it in aqueous suspension simultaneously with (1) a substance capable of forming an intercalation complex with the mineral and (2) a reducing agent capable of converting ferric ions in the mineral to ferrous, then decomposing the intercalation complex under non-oxidizing conditions. Hydrazine or a derivative of the formula NHR 1 .NHR 2  or NH 2 .NH.CO.R 3 , where each of R 1 , R 2  and R 3  is H or C 1 -C 6  alkyl, may act as both intercalating and reducing agent or other intercalating agents, e.g. urea, formamide or acetamide, may be used with a separate reducing agent. The complex may be decomposed by washing with water containing an oxygen scavenger, then with water alone and drying. The process is particularly applicable to kaolinitic clays, e.g. china clays with a particle size below 2À5 microns, but can also be applied to minerals of the montmorillonite group.
Patent GB-1313575-A (GB)
Title: Lining of tunnels
IPC: E21D9/00
Filed: 1970-07-31
Abstract: 1313575 Boring earth &c TUBE HEADINGS Ltd and CEMENTATION PROJECTS Ltd 12 Oct 1971 [31 July 1970] 37233/70 Heading E1F [Also in Division F2] In a method of driving a pipe into the ground with substantially no disturbance of the ground surface above the pipe, a sheet of material is introduced between the ground and at least a part of the surface of the pipe to provide a solid slip surface, the sheet of material being anchored at one end so that it is stationary with respect to the ground, whereby at least part of the pipe is substantially isolated from the ground to reduce ground disturbance. As shown in Fig. 1 the pipe 2 follows a tunnelling shield 1 and sheet material 8 is fed over rollers 7 and through a slit 6 to cover the top surface of the (rectangular section) pipe. In an alternative (Fig. 3 not shown) the slits through which the sheet material emerges are in the shield per se well forward of the junction between shield and pipe. The sheet material may be provided so as to cover all the outer surfaces of the pipe. A lubricant (e.g. oil, bentonite, graphite, water) may be used between sheet material and pipe. Materials: The sheet may be of plastics material (e.g. polyethylene) woven material, plastics coated woven material, or flexible steel. Preferably the sheet is less than one inch thick. Preferably a 2mm thick sheet of plastics coated woven material is used.
Patent GB-1319046-A (GB)
Title: Journal-bearing support of geodetical angle-measuring instruments
IPC: G01C1/02
Filed: 1972-04-14
Abstract: 1319046 Surveying instruments CARL ZEISS JENA VEB 14 April 1972 17236/72 Heading G1F A journal bearing for an angle - measuring surveying instrument comprises a housing 3 in which are mounted optical and mechanical measuring elements, wherein the elements are mounted on a plate-like carrier 10 which is removably secured to an interior wall of the housing 3. The elements can thus be accurately set up relative to each other on the carrier 10 before it is mounted in the journal housing. As shown, a telescope 5 is supported by journals 6 in bearings 7 of housings 3 (4), a flared extension 8 of one journal carrying a seale ring 9. A prism 29 is secured directly to the housing 3. A pendulum 14 carrying a prism combination 17 and having air dampers 15, 16, prisms 21, 22, 23, and imaging systems 31, 32 are all mounted on the carrier 10. Rays from a window 27, prisms 23, 29 and a part 34 of the scale disc 9, and rays from a window 28, a part 33 of the scale disc 9, prism 21, the imaging system 31, and prism 22, are combined by the prism combination 17, which also provides an image - separating edge. The combined rays pass via the imaging system 32 and optical elements (not shown) in the alidade 2, the journal housing (4), and the journal 6 associated therewith, to enter the telescope 5, where they produce an image of the reading on the scale disc 9 in the image plane of the eyepiece. The carrier 10 could be replaced by another carrying different optical elements, e.g. an optical micrometer.
Patent GB-1324815-A (GB)
Title: Method and apparatus for desalinating water
IPC: C02F1/04
Filed: 1970-08-11
Abstract: 1324815 Desalination of water by distillation AEROVAC CORP 11 Aug 1970 38721/70 Heading BIB Heated saline water is introduced into chamber 22 where it is boiled under a pressure lower than the pressure at which water normally boils at the temperature of the preheated water, the vapours are collected in chamber 24, and then atmospheric air at ambient pressure is allowed to enter chamber 24 through valve 66, whereby the vapours condense to form aerated, desalinated water. The vaporization is effected at a temperature of 102 to 231F. The apparatus is operated by valves, which are preferably actuated automatically. Heated saline water is introduced into chamber 22 through pipe 30, and valve 32 is then closed. Chamber 24 is evacuated by pump 64, valve 62 is then closed, and valve 46 is opened whereupon the water in chamber 22 boils under reduced pressure. The vapours pass from chamber 22 to chamber 24 via suppressor port 42, pipe 44 and valve 46. The port 42 has an aperture and an L-shaped cylindrical bore which prevent slugs of salt water from entering pipe 44, the cross-section of the aperture being related to the cross-section of chamber 22. When chamber 24 reaches a predetermined temperature and pressure, valve 46 is closed, and valve 66 is opened to allow air to enter chamber 24 and contact the vapours, thereby causing condensation thereof. Valve 70 is opened to remove the aerated, desalinated water. The cycle of operations is then repeated. Three or more, preferably twelve, condensation chambers may be associated with one vaporization chamber. The chambers may be made of stainless steel. The condensation chambers may be immersed in the saline water to be treated, whereby the saline water is preheated arid the condensation chambers are cooled. The process may be used to obtain pure water from water which contains matter in suspension.
Patent GB-1332235-A (GB)
Title: Conveyor tracking arrangement
IPC: B65G39/16
Filed: 1971-12-30
Abstract: 1332235 Endlass conveyers DANIEL FOXWELL & SON Ltd 30 Dec 1971 [18 Jan 1971] 2339/71 Heading B8A An arrangement for tracking a conveyer belt 11 comprises, at each side of the belt, a unit 13 or 14 having rollers 20, 21 which if the belt tracks correctly, do not engage the belt. The shaft of the upper roller 20 is adjustably secured on a pillar 16 which also supports the lower roller 21 by a pivotable yoke 22. A pneumatic device 26 includes a plunger 23 which adjusts the horizontal position of the roller 21, the device having a valve (39-41, Fig. 3, not shown) for control by a sensor arm 49 provided on the unit 13 or 14 at the opposite edge of the belt 11. If the belt deviates from its proper path the corresponding arm 49 is deflected, the pneumatic device 26 of the other tracking unit is energized and the edge of the belt at that side is gripped between the raised roller 21 and the roller 20; tracking of the belt is thus corrected. The rollers 20 are metal and smooth-surfaced but they may be resiliently surfaced as are the rollers 21. The upper rollers may be raisable and lowerable to correct the tracking.
Patent GB-1332962-A (GB)
Title: Extraction of pyrethrins from pyrethrum containing materials
IPC: B01D11/04
Filed: 1971-01-28
Abstract: 1332962 The extraction of pyrethrins ROSE DOWNS & THOMPSON Ltd 21 Jan 1972 [28 Jan 1971] 3366/71 Heading C2C A process for extracting pyrethrins from a pyrethrum material comprises extracting the pyrethrins from a solution of the material in a first organic solvent (e.g. n-hexane, isohexane or low-boiling petroleum fraction) into a second organic solvent (such as methanol or ethanol) containing water and back-extracting the pyrethrins from the second organic solvent containing water into an organic solvent which differs from the second solvent, the partition coefficients of the pyrethrins and non-pyrethrins being adjusted for a back extraction step so that the pyrethrins are extracted preferentially into the said organic solvent which differs from the second solvent, the second solvent being miscible with water, and the mixture of the second solvent and water forming a separate phase with each of the first solvent and the solvent differing from the second solvent.
Patent GB-1336646-A (GB)
Title: Stud assemblies for footwear
IPC: A43C15/16
Filed: 1971-12-31
Abstract: 1336646 Boots &c WHITE-KNIGHT PRODUCTS Ltd 31 Dec 1971 [9 March 1971] 6333/71 Heading A3B  A stud assembly, of the type which is secured in an internally threaded socket (not shown) embedded in a shoe sole, consists of a flange member 10 and a stud member 25. The flange member 10 includes a flange 11, a boss 15 adapted to fit in the socket, a slot 20 extending across the boss 15 and a bore 18 extending through the flange 11 and boss 15 and tapering from at least one end to a minimum cross section 19. The stud member 25 includes a stud 26, a flange 27 and a pin 28 formed with an enlarged end portion 30. In use the flange member 10 is pushed into the threaded socket and the pin 28 is pushed into the tapered bore 18 until the enlarged portion 30 passes the minimum cross-section 19, and the flange 27 enters a recess 12 in the member 10. This forces the outer surface of the boss 15 into contact with the threaded socket, and the outer surface may be threaded, ribbed or plain, the threads of the socket biting into the material of the boss. The flange member 10 may be made of plastics material, e.g. nylon, and the stud member 25 may be made of cadmium or zinc plated or similarly treated steel and may be formed with a ridge 31 which allows the stud to be gripped by a tool for removal.
Patent GB-1340494-A (GB)
Title: Apparatus for applying a mould release agent
IPC: B05B5/08
Filed: 1971-04-19
Abstract: 1340494 Coating-apparatus SEMPERIT AG 19 April 1970 [16 March 1970] 12446/70 Heading B2L [Also in Division B5] Apparatus for applying a mould release agent to successive moulds 16 presented in sequence to the apparatus, comprises means for opening each mould, a spray nozzle 21, means 19 for electrostaticaly charging the nozzle relative to the mould, means for traversing the nozzle over the mould, means for delivering the release agent to the nozzle, and means for operating the traversing and delivering means in response to and following actuation of the mould opening means. A suction duct 31 connected to fan 34 draws off volatile solvent from adjacent the mould. The nozzle 21 is mounted on a supply tube 20 slidable in insulating guides 22. The nozzle traversing means comprises a ram 27 mounted between a frame member 29 and a pivoted arm 23 connected to the tube 20. The moulds may be mounted on a rotary turntable 10 and used for injection moulding soles onto uppers mounted on lasts 17. Each last 17 can be pivoted about a pin 18 through 180‹ out of the path of the nozzle 21 by means of a pin 40 eccentrically mounted on a rotatable cylinder 41. Micro-switches may be provided for effecting the automatic operation of the apparatus.  (For Figure see next page)