baber/WOPTO huggingface dataset:
Patent GB-1239228-A (GB)
IPC: F16J15/52
Filed: 1968-09-07
Abstract: 1,239,228. Shaft seals. CONTINENTAL GUMMI-WERKE A.G. 7 Sept., 1968, No. 42692/68. Heading F2B. Sealing means between relatively movable parts, e.g. a shaft 4 and housing 5, comprises a rubber gaiter terminating in reverted ends and including a frusto-conical wall 1 whose thickness decreases as its radius increases. Beads 2 and 3 at the ends of the gaiter engage grooves 6 and 7 in the shaft and housing 4 and 5 respectively. Fig. 2 shows the gaiter in its free condition before installation. In a modification, Fig. 5 (not shown), the ends of the gaiter are cylindrical portions secured to the shaft and housing by clips (8).
Patent GB-1250435-A (GB)
IPC: H01J49/30
Filed: 1970-03-11
Abstract: 1,250,435. Particle spectrometers. DEUTERON Inc. 11 March, 1970 [12 March, 1969], No. 11767/70. Heading H1D. Apparatus for measuring the energy spectrum of a beam of charged particles comprises at least two magnets 10, 11 adapted to focus the particles at a point along a line 22 corresponding to their momentum, the input boundary of the first magnet and the output boundary of the second being shaped to focus particles normal to the median plane between the polepieces, and the output boundary of the first magnet and the input boundary of the second magnet being shaped to focus particles in the median plane. The apparatus may also include a third focusing magnet 19 which maybe sector shaped, as shown or may be a quadrupole magnet. The boundaries of the magnetic fields may be defined exactly by means of magnetic field clamping devices 30-35. The particles should be brought to an intermediate line focus 26 and this is achieved partly by the fringing field effects at the entrance to the first magnet and partly by a quadrupole lens 28 provided between the particle source 12 and the entrance to the first magnet. A corrective element 41 may be disposed about the region 26 and may comprise a plurality of upper coils mounted on a common upper core and interspersed by upper iron teeth, and a similar lower section (Figs. 4 and 5, not shown). The coils may be energized with superimposed currents respectively adapted to produce a quadrupole field, a hexapole field and other multipole fields. Alternatively, each coil may be replaced by a set of coils, a quadrupole power supply being fed to one set, a hexapole power supply to another set and so on.
Patent GB-1252563-A (GB)
IPC: A47G23/02
Filed: 1968-05-25
Abstract: 1,252,563. Clips. H. AINLEY. 25 Aug., 1969 [25 May, 1968], No. 25104/68. Heading E2B. [Also in Division A4] A holder for a drinking vessel has a base portion A for holding the vessel and a bracket B for clipping into a car window. The base A may comprise a ring or a bucket-like, wall, 6 Fig. 2 (not shown), and may be integral with the bracket B which is made of a resilient material such as a plastics material or spring metal. The angle C between the top of the base A and the adjacent part of the bracket is slightly less than ninety degrees so that, when clipped to a car window, the top surface of the base is substantially horizontal.
Patent GB-1256688-A (GB)
IPC: B24D18/00
Filed: 1970-05-02
Abstract: 1,256,688. Making abrasive tools; extruding. INSTITUT FIZIKI VYSOKIKH DAVLENY. 2 May, 1970, No. 21218/70. Headings B3A, B3D and B3P. A method of making an abrasive tool comprises filling the spaces in a blank 2 with an abrasive filler 3, closing the spaces, placing the blank in a chamber 11 having a shaping hole 14, filling the chamber with a pressure medium, building up a pressure in the medium to deform the blank by extrusion through the shaping hole, and removing part of the blank material to uncover the abrasive material. The blank may be of metallic, such as copper, or ceramic material and is formed with spaces which are filled with the abrasive, the blank being in the form of a cylinder, a hole-grinding tool (Figs. 3 and 4) or an abrasive drill (Figs. 5 and 6). The blank is closed by a plug 16 and placed in the chamber 11 which has a part 13 with a shaping hole 12 and a hole 15 for the pressure mechanism which extrudes the blank through the hole 12 which may be of circular, rectangular, or other profile. After extruding, part of the blank is removed to expose the abrasive. The abrasive filler may consist of abrasive grains in a powdered material, such as a low-melting metal, e.g. tin, or a molybdenum powder. The abrasive may be diamond, cubical boron nitride, molybdenum, or tungsten. The blank may be heated during extrusion and an inert gas, such as argon, may be used as the pressure medium.
Patent GB-1258152-A (GB)
IPC: G03D13/00
Filed: 1969-05-21
Abstract: 1,258,152. Fixing developed electrostatic images. RANK XEROX Ltd. May 21, 1969 [May 24, 1968 (2)], No.26008/69. Heading G2H. Developed images are fixed by passage through pressure rollers 30, 31, the exterior of the roller 30 being heated by a quartz lamp 64 and a ribbon heater 68. A silicone rubber blanket 37 surrounds a metallic cylinder 33 to form a heat barrier. A coating 38 of a vulcanizing compound serves as a release agent for toner particles which contact the roller 30 during fixing. An insulating coating 43, e. g. of tetra-fluorethylene is provided on the upper roller 31 to produce indentation of the blanket 37 and coating 38.
Patent GB-1258408-A (GB)
IPC: H01J29/86
Filed: 1968-12-17
Abstract: 1,258,408. Electron beam apparatus. MINNESOTA MINING & MFG. CO. 17 Dec., 1968 [18 Dec., 1967], No. 60043/68. Heading H1D. Recording apparatus comprises a film chamber 12 including means for moving a film 14 past an aperture 46 in a member 70 which separates the film chamber from an electron beam chamber 10. The member 70 is provided with a pair of parallel rails, of which one 76 is shown in Fig. 1, against which the film is pressed by a pressure shoe 84 which is provided with a recess 88 opposite the aperture 46. Slots 80 and 82 extend between the rails on each side of the aperture 46 and communicate with extensions of the recess 88 through sprocket holes in the film. The film chamber 12 is reduced in pressure to 15-20 mm. via valve 36 by a fore pump 32 which also (through conduit 49) maintains the slots 80 and 82 at a pressure of 1 mm. and is connected through valve 40 to a diffusion pump 38 adapted to maintain a pressure of 10<SP>-5</SP>-10<SP>-7</SP> mm. at the electron gun 50 and a pressure of 10<SP>-3</SP>-10<SP>-4</SP> mm. at the aperture end of the tube. A flap valve 48 is provided to seal the tube 10 during loading and unloading operations. The film chamber includes a sprocket film drive capstan 20 and a claw 90 driven by cam means (not shown) for incrementally advancing the film through the film gate 22. The electron gun is surrounded by a focusing coil 66 and a scanning coil 68. The apparatus may be used to record 30 frames/sec. television images on film at the rate of 24 film frames/sec. In Fig. 1 the surface of the member 70 contacted by the film is flat; in a modification (Fig. 4, not shown) it is curved convexly.
Patent GB-1258497-A (GB)
IPC: G06K13/06
Filed: 1969-06-04
Abstract: 1,258,497. Delivering sheets. INTERNATIONAL BUSINESS MACHINES CORP. 4 June, 1969 [11 June, 1968], No. 28252/69. Heading B8R. The transit time of a document 25 between positions A and B is varied by providing a first variable portion of the transport path over which the document is conveyed at velocity V 1 , and a second fixed portion of the path over which the document is conveyed at velocity V 2 . The document is decelerated from velocity V 2  to velocity V 0  at which latter velocity it arrives at B. The portion of the path at velocity V 1  is provided by co-operating rollers 1 and 2 and the portion at V 2  by rollers 10 (V 2  being greater than V 1 ). The rollers 10 may be peripherally adjusted about roller 1 to vary the position at which the documents are brought to velocity V 2  and thus vary the length of path over which they travel at velocity V 1 . Rollers 10 may run against a freely rotatable insert (5, Fig. 1, not shown) in roller 1. The device may be used to regulate the spacing of sheets being forwarded to a stacker for which purpose the position of rollers 10 is controlled by a sheet detector 31.
Patent GB-1259153-A (GB)
IPC: B01D69/10
Filed: 1969-02-13
Abstract: 1,259,153. Degassing aqueous solutions. RHONE POULENC S.A. 13 Feb., 1969 [14 Feb., 1968], No. 8002/69. Headings B1M and B1R. A process for effecting the absorption of a gas by, or the removal of a gas from, an aqueous solution comprises bringing the said solution into contact with one side of a waterproof porous membrane as defined below, through which aqueous solution cannot pass having pores with an apparent diameter as defined below of 0.01 to 3Á and having a critical surface tension as defined below less than 40 dynes/cm. at 20C, the other side of the said membrane being in contact with a gas or gas mixture having a total pressure from 0.01 bar gauge to the minimum pressure of the said solution against the membrane, any gas to be absorbed by the said solution having a pressure or partial pressure respectively higher than the partial pressure of the same gas in the said solution at the membrane and any gas to be removed from the said solution having a partial pressure lower than the partial pressure of the same gas in the said solution at the membrane. By "porous membrane" is meant a material through which a gas can pass by simply following the path of the pores in the material and not by diffusion through the material of which the membrane consists as in the case of "permeable" membranes, as described in the Specification. Critical surface tension is determined from the formula has #=1 + b (γ o - γ c ) where # is the contact angle, γ c  is the critical surface tension, γ c  is the surface free energy of the liquid and b is a constant. The apparent diameter of the pores (2R) is obtained from the formula where P is the minimum pressure of mercury at the membrane surface required to force mercury through the membrane, where y is the surface tension of mercury, and # is the angle of contact of the mercury on the material of the membrane. The process may be applied to the oxygenation of blood with or without simultaneous removal of carbon dioxide.
Patent GB-1264241-A (GB)
IPC: F23D17/00
Filed: 1969-01-23
Abstract: 1,264,241. Burners. BRITISH PETROLEUM CO. Ltd. 8 Jan., 1970 [23 Jan., 1969], No. 3793/69. Addition to 1,205,432. Heading F4T. A fluid fuel burner comprises a plurality of tubular modules arranged side-by-side in a fuel chamber 16 defined by a surround 17 and having a bottom wall formed by joints between surfaces 11 on the modules, the tops of the modules being separated by projections 14 to form fuel outlet passages. In use, fuel is fed to the chamber 16 via a pipe 19 and a channel 18, and air is fed through the modules 10. The modules are of polygonal cross-section and the projections 14 may comprise studs or corrugations, or the outlet surfaces 12 may be concave in crosssection, the projections 14 then being formed by the corners of the modules.
Patent GB-1290855-A (GB)
IPC: G01B5/06
Filed: 1969-04-26
Abstract: 1290855 Height gauges WEIR PUMPS Ltd 16 Feb 1970 [26 April 1969] 21397/69 Heading G1M A column 2 supports a slider 3 by means of a low friction bearing 4, and rotation of the slider is prevented by a tail bearing 5 comprising wheels 6 running either side of a vertical mast 7. The slider 3 is counterbalanced by weights, or by a constant tension spring 8 and a tape passing over pulleys 10, 11, and a clamping arm 10 fixed to the slider 3 may be releasably clamped by pressure pads 14 to a bar 11 so that by rotating a screw 15 having a fine thread 16 the bar and slider may be raised or lowered. In a modification, the slider may be moved by a wheel frictionally engaging the column 2 when required. The face 20 of the base is provided with air nozzles 21 connected through a spring-urged button operated on-off valve 24 to a compressed air supply so that the gauge may be slid over the marking off table on a cushion of air. When a reading head 26 on the slider 3 moves relatively to a scale 25 in response to turning the screw 15 a pulse is generated for each finite movement and this movement is displayed on a digital counter, the device 18 being merely a zeroing gauge of a dial or proximity air nozzle type.
Patent GB-1290986-A (GB)
IPC: F01L3/04
Filed: 1970-09-17
Abstract: 1290986 Valves SULZER BROS Ltd 17 Sept 1970 [24 Sept 1969] 44513/70 Heading F2V [Also in Divisions C6-C7 and F1] A valve or its seating carries a metallic coating comprising an outer layer of a heat resisting metallic material having a hardness of over 700 kp./mm.<SP>2</SP> Vickers and an intermediate layer of another metallic material whose hardness is between 400 and 600 kp./mm.<SP>2</SP> Vickers and is greater than that of the base material carrying the coating. The outer layer may be a non- ferrous or nickel or cobalt or tungsten base alloy. The intermediate layer is an hardfacing alloy containing more than 20% metallic carbides and the base material is an austenitic or ferritic steel.
Patent GB-1295385-A (GB)
IPC: F16B45/00
Filed: 1971-07-14
Abstract: 1295385 Hooks BROWN LENOX & CO Ltd 14 July 1971 33065/71 Heading E2A A hook assembly comprises a pivoted two armed member having a hook 34 on one arm the other arm being constrained by a retaining lever 6 movable from an operative position in which the member is held fast to a releasing position and means for holding the lever in its operative position including a locking lever 11 one end of which abuts against one end of the lever 6 to hold it against a stop 30 the other end of which is connected by a link 8 to a sector plate 24 having a hole movable into and out of registration with a fixed notch 27 for insertion when in use, of a locking pin 23 for engagement with the notch. The two armed hook member is mounted to pivot between a pair of side plates 1, 1' mounted to pivot on an upright. The lever 6 has side trunnions pivotally mounted in the side plates and has an offset bifurcated upper end pivotally supporting a roller 7 which engages the end of the other arm of the hook member, to hold the hook 34 in operative position. The other end of the lever 6 mounts a roller 9 which abuts one end of the lever 11 which abuts a stop 19 to hold the lever 6 in retaining position. The sector plate 24 is pivotally connected to the lever 11 by the link 8 and has a side extension with a through hole 26 in which a pin 23 is inserted to engage in a notch 27 in a lug 22 on the plate 1. To release the hook member a spigot 25' of a handle 25 is inserted in the hole 26 and the plate 24 is rotated anticlockwise by the handle or a lanyard attached thereto to pivot the locking lever 11 to disengage the roller 9 whereby the lever 6 is free to swing anticlockwise under the pressure of the hook member which is released from the roller 7 and pivots clockwise. The lever 6 is arrested by abutting a stop 33. Manually rotating the hook member to its operative position restores the lever 6 to its operative, retaining position and the plate 24, link 8 and locking lever 11 are biased to restore them to locking position.
Patent GB-1295445-A (GB)
IPC: C08G59/18
Filed: 1969-06-18
Abstract: 1295445 Thiol alkoxylates CIBA GEIGY (UK)Ltd 1 June 1970 [18 June 1969] 30957/69 Headings C3B and C3R [Also in Division C2] The invention comprises compounds of the formula where G is an organic radical, obtained by removal of d active hydrogen atoms from a compound having at least d active hydrogen atoms, R 1  is an alkylene group of two or more carbon atoms, R 2  is a divalent organic residue, e is zero or an integer and d is an integer. The compounds may be prepared from compounds of the formula by converting the OH group into OCOR 2 SH in known manner, for example by reaction with HOOOR 2 SH, or from compounds of the formula where X is halogen by converting the halogen atom into a mercapto group in known manner, for example by reaction with an alkali metal hydrosulphide. The compounds may be cured by an oxidative curing agent optionally in the presence of an epoxy resin.
Patent GB-1297326-A (GB)
IPC: H01R13/115
Filed: 1971-04-19
Abstract: 1297326 Making electrical connectors W HOLZER & CO KG 19 April 1971 [28 March 1970] 25522/71 Heading B3A [Also in Division H2] A spring contact is made by blanking a metal strip to form contact parts 10, 11 or 10<SP>1</SP>, 11 and folding along line 5 or 5<SP>1</SP> to superimpose the contact parts. A tongue 8 is bent up to secure the component 10 or 10<SP>1</SP> to the component 11. Projections 9 may be provided to secure the tongue 8 in position. Prior to superimposing the contact parts, fingers 1-4 are twisted through 90 degrees about their longitudinal axes to provide wide surfaces for bearing on both sides of a flat contact, e.g. a printed circuit board.
Patent GB-1305004-A (GB)
IPC: E21B4/14
Filed: 1971-04-22
Abstract: 1305004 Boring earth &c INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA AKADEMIINAUK SSSR 22 April 1971 10662/71 Heading E1F A pneumatic ground-burrowing device comprises a housing 1, a striker 2, an air supply member 7, and working chambers 5, 6. When the device is burrowing the pressure of the supply forces a slide 11 to move to close holes 10 so that air is supplied to and exhausted from the chamber 5 through holes 9, the striker reciprocating and striking the pointed end of the housing. During withdrawal of the device the pressure of the supply is reduced to permit a spring 15 to move the slide to the position shown, the striker reciprocating and striking the end of the housing formed by a flange 8 on the member 7.
Patent GB-1307362-A (GB)
Title: Separation devices
IPC: B01D17/02
Filed: 1969-05-16
Abstract: 1307362 Combined settling-filter apparatus ALEXANDER ESPLEN & CO Ltd and J C GABRIEL 18 May 1970 [16 May 1969] 25060/69 Heading BID In operating a combined unitary settling tank-filter device used to remove an impurity heavier or lighter than the main medium, e.g. an oil-water system, the contaminated liquid is fed via line 13 to a spiral baffle plate 12 which cause the oil to separate and float to the top 14 of the tank where its presence (or absence) is detected by probes 30a, b, c. The probes activate diaphragm controlled outlet valve 16 by means of control panel 29 and solenoid 28, 30c being a warning and safety control probe. The partially purified water is channelled around the bottom of casing 11 and over weir 11a and into outlet pipe 22 having a spring biassed valve 23 operated either by pressure within the tank or by further probes (not shown). Valve 16 is closed if valve 23 is open and vice versa. The water then passes via duct 22a to filters 36, e.g. of terry towelling wrapped around perforated metal screens, or of a layer of powder material formed on a carrier. From the filters 36 the water passes to storage tank 35 which may have a cooler 38. The valves 16, 23 open alternately and in order to keep a steady flow of water through the filters 36 the storage tank may be divided, one part containing the filters as before whilst another, also connected to the filter chamber, feeds in a steady flow of uncontaminated feed liquid. Pipe 35a allows direct feed of uncontaminated feed to the storage tank. The filters may be accommodated in several valved ducts for selective maintenance or replacement.
Patent GB-1309167-A (GB)
Title: Wrapping machines
IPC: B65B11/18
Filed: 1970-10-15
Abstract: 1309167 Wrapping triangular-prismatic articles CARRINGTON PACKAGING Ltd 14 Jan 1972 [15 Oct 1970] 48946/70 Heading B8C In a machine for wrapping articles of triangular prismatic shape, such as batches of triangular half-rounds of sandwiches B, batches of the latter are placed in pockets 9 of a rotatable table 8 which is indexed to bring the batches B successively into vertical alignment above an elevator 3 comprising a platform 11 and jaws 10 which are raised together to carry each batch B in turn through an aperture in a support for a pre-cut rectangular sheet of film F which is supplied at an angle of 45 degrees to the support by a feeder 12. The sandwich batch A, with the entrained sheet F, passes upwardly through a throat defined by the adjacent ends of movable and fixed formers 5, 6 respectively to fold the sheet F along the longitudinal edges of the upper surface As of the batch, Fig. 6f, the two corners of the sheet being brought together at the bottom corner of the batch A due to the angular position of the sheet F. The jaws 10 of the elevator 3, which grip the vertical sides A 1 , A 2  of the batch A as the latter is raised to maintain the sandwiches intact, are then lowered while the platform 11 continues to rise toward a clamping station 4 where a pivotal flap 13 descends to clamp the batch against a rear wall 14. The platform 11 then descends and the movable former 5 slides forward to fold the rear edges of the sheet F forward against the lateral surfaces A 1 , A 5  of the batch A, Fig. 6h, whereupon a conveyer flight 19, having a spring-loaded plate 20 to press upon the upper surface A 3  of the batch, pushes the latter out of the clamping station 4 and along the stationary former 6. This results in the front edges of the sheet F being folded back over the alreadyfolded rear edges on the surfaces A 4 , A 5 , Fig. 6i, a slot 15 in one of the sides of the stationary former 6 folding up the bottom corners of the sheet F the top corners of which are folded down, gradually by folding rods 16, Fig. 6k. The stationary former is apertured at 17 so that reciprocable heat sealing elements 18 can seal the batch, which is discharged while still under pressure to allow for setting of the seals. The rear wall 14, comprising a number of fingers 14b to allow for the passage of the flights 19 and with abutment surfaces 14a is mounted on a carrier 14c to cater for different batch widths. The rotary table 8 has a plurality of side members 9a which are preferably adjustable to vary the width of pockets 9 for the batches A and which have grooves 9c to receive the fingers 10a of the jaws 10 on the elevator 3. Circular rods 9b which define the floor of the table, are interrupted to permit the passage of the elevator 3. The side members 9a are arranged to slightly clamp the batches in the pockets 9.
Patent GB-1317185-A (GB)
Title: Acyloxy-3alpha-hydroxy-pregnones
IPC: C07J75/00
Filed: 1969-06-20
Abstract: 1317185 21 - Acyloxy - 3α - hydroxy - 5α- pregnane-11,20-diones GLAXO LABORATORIES Ltd 11 June 1970 [20 June 1969] 33162/72 Divided out of 1317184 Heading C2U [Also in Division C3] Novel steroids of the formula (wherein R is optionally substituted alkanoyl, aroyl or aralkanoyl) are prepared (i) by reacting lead tetraacylates with 3α-hydroxy-5α-pregnane-11,20-dione in which the OH group may be protected; (ii) by reduction of a 21-acyloxy- 5α - pregnane - 3,11,20 - trione, e.g. using Saccharomyces cerevisiae; (iii) by reacting 21- halo - 5α - pregnan - 3α - ol - 11,20 - diones (prepared by halogenation of the 21-unsubstituted compound) with a salt of the appropriate acid; or (iv) by hydrolysing a product of (i) above containing a protected 3-hydroxy group to the corresponding 21 -ol, acylating this and removing the protecting group. 3α - Trimethylsilyloxy - 5α - pregnane - 11,20- dione and 3α - (2,2,2 - trichloroethoxycarbonyloxy)-5α-pregnane-11,20-dione are prepared from the 3a-ol and trimethylchlorosilane and 2,2,2- trichloroethyl chloroformate respectively. They are subsequently converted to their 21-acetoxy derivatives as described in (i) above. 17a - Bromo - 5α - pregnan - 3α - ol - 11,20- dione is a by-product in the 21-bromination of 5α-pregnan-3α-ol-11,20-dione. Specified intermediates in process (iv) are 21 - acetoxy - 5α - pregnan - 3α - ol - 11,20 - dione 3-nitrate and the corresponding 21-isobutyryloxy and hemisuccinoyloxy compounds and 5α-pregnane - 3α, 21 - diol - 11,20 - dione 3 - nitrate.