baber/WOPTO huggingface dataset:
Patent GB-1187228-A (GB)
Title: Improvements in Light Absorptive Means for use in Optical Apparatus
Inventor: FREEMAN ROBIN JOHN
IPC: G02B5/20
Filed: 1967-10-17
Abstract: 1,187,228. Optical filters. VISION ENG. Ltd. Oct.11, 1968 [Oct.17, 1967], No.47234/67. Heading G2J. Light absorptive means for use in optical apparatus comprises a black gloss backing surface 2 in front of which are spaced at least two spaced strips 1 arranged in a grid, like a venetian blind, and set in one plane at an angle of 45 degrees to the path of incident light and at 20 degrees in the transverse plane, have their leading edges sharpened at 45 degrees to lie parallel to the light in one plane whereby light is reflected away from the light source by those edges and absorbed by multiple reflection between the strips. A further series of strips may be placed in front of, perpendicular to, and touching the leading edge of the first series so that whereas in the first embodiment a total of five reflections occur before light returns along the line of incidence in the second embodiments nine reflections occur.
Patent GB-1158200-A (GB)
Title: Method and Apparatus for Joining Thermoplastic Films.
IPC: B29C65/00
Filed: 1967-10-17
Abstract: 1,158,200. Seaming non-metallic sheet material. MENSCHNER G.m.b.H. 17 Oct., 1967 [16 Nov., 1966], No. 47256/67. Heading B5K. Two superimposed thermoplastic films are joined by two parallel spaced welded seams and are severed thereafter between the seams by heated severing means. Welding jaws 1, 2 are each provided with a thermally insulating layer 3, e.g. of glass fibres, on their confronting surfaces. The jaw 1 carries two flat rectangular welding strips 4, 5 to form the seams and the jaw 2 carries a severing wire 6. Each jaw is provided with an anti-adhesive layer 7, e.g. of polytetrafluoroethylene. In use, the jaws 1, 2 are brought together with the films sandwiched therebetween and the strips 4, 5 are first supplied with current to form the seams. The wire 6 is supplied with current only after the seams have cooled. The time delay may be effected using timing relays or capacitors. In a modification (not shown), the wire 6 is arranged between the strips 4, 5 on the jaw 1.
Patent GB-1467288-A (GB)
Title: Respiratory support system
IPC: A61M16/10
Filed: 1974-11-04
Abstract: 1467288 Isothermal gas separation process BENDIX CORP 4 Nov 1974 [19 Nov 1973] 47543/74 Heading B1L A breathable gas mixture is obtained by means of an isothermal process wherein a gaseous mixture (e.g. air) is treated to selectively absorb one component (e.g. nitrogen) in a first zone whilst desorbing the one component in a second zone characterised by the steps of providing a first bed of selective absorbent material (40) with a first entrance port (48) and a first exit port (60), providing a second bed of selectively absorbent material (42) with a second entrance port (56) and a second exit port (62), connecting the first entrance port and the second entrance port to a reservoir (38) through a first conduit (36), connecting the first exit port to the second exit port with a second conduit (64), a third conduit (68) and a fourth conduit (76), introducing the gaseous mixture under pressure to the first conduit for communication with said reservoir and said first entrance port, the mixture flowing through the first bed of absorbent material where one component is retained while an unabsorbed product effluent (e.g. oxygen) is discharged through the first exit port into the second conduit, the third conduit, and the fourth conduit, restricting the flow of the unabsorbed product effluent through the second conduit to a fixed percentage of the total of the unabsorbed product effluent by means of restrictor 66 to permit flow through the second exit into the second bed where any of said one component retained therein is carried through the second entrance port into the atmosphere, preventing said unabsorbed product effluent from flowing in said third conduit while said fluid mixture is communicated to the first bed of absorbent material, allowing the remainder of said total of the unabsorbed product effluent to flow through a one-way control (78) into a storage container, interrupting the flow of the gas mixture to said first bed through the first entrance port and the flow of the unabsorbed product through the second entrance port to the atmosphere, permitting the unabsorbed product effluent to flow through said third conduit until the pressures in the first and second beds are equal, allowing the gas mixture under pressure in the first conduit to communicate through said second entrance port to the second bed to retain said one component therein while allowing an unabsorbed product effluent to flow through the second exit port to the second conduit, the third conduit, and the fourth conduit for removing the retained one component from the first bed of absorbent material and retention in said storage container and cycling the fluid mixture under pressure between the second bed of absorbent materials and the first bed of absorbent material when the effective retention of the one component in either bed is reached. Control means are also described.
Patent GB-1166336-A (GB)
Title: An Improved Electromagnetically Operated Non-Slipping Clutch.
IPC: F16D27/14
Filed: 1967-10-20
Abstract: 1,166,336. Friction clutches. FABRYKA OBRABIAREK "RAFAMET". 20 Oct., 1967 [28 Oct., 1966], No. 47774/67. Heading F2C. An electromagnetically operated friction clutch comprises rollers 15 which wedge between a conical surface 2 on one clutch member 1 and cams 16 on an axially slidable ring 14 rotatably fast with the other clutch member 17. Energization of a stationary electromagnet 4 moves an armature 10 and thrust ring 11 left against the bias of a return spring 13 and the thrust ring 11 acts on the ring 14 to urge the rollers 15 into initial engagement with the conical surface 2 whereafter relative rotation between the clutch members causes the rollers to ride up the cams 16 into full wedging engagement.
Patent GB-1058961-A (GB)
Title: Method of and apparatus for producing a web material
IPC: H01B9/02
Filed: 1963-12-04
Abstract: 1,058,961. Protective packaging sheet. LICENTIA PATENT - VERWALTUNGS G.m.b.H. Dec. 4, 1963 [Dec. 4, 1962], No. 47869/63. Heading B8C. [Also in Division H1] A deformable sheet which may be used as an insulating or conducting sheet or a sheet for packing purposes consists of overlapping transverse strips 1, 2, 3 . . . (Fig. 1, not shown) attached to spaced longitudinal strips 4 and is made by withdrawing a batch 26, Fig. 4, of transverse strips from the supply rolls 27-28, securing the transverse strips to the longitudinal strips and then cutting them off from the rolls (see Division H1). The longitudinal strips are of high strength plastic foil, the transverse strips are of insulating paper for the insulation sheet and conducting paper or metal foil for conducting sheet, which may have additional metal longitudinal strips. In a further embodiment the transverse strips may be abutting, side by side, or spaced apart, and further strips provided on the lower surface of the longitudinal strips and staggered with those above.
Patent GB-1041898-A (GB)
Title: Improvements in or relating to two-stage rotary sliding vane oil sealed vacuum pumps
IPC: F04C18/344
Filed: 1964-11-25
Abstract: 1,041,898. Rotary vacuum pumps. LABORATORNI PRISTROJE ,NARODNI PODNIK. Nov. 25, 1964 [Nov. 28, 1963], No. 47904/64. Heading F1F. A two-stage, oil-sealed, rotary sliding vane vacuum pump, includes a separate transverse partition 15 separating the stages from each other, which is prevented from axial and rotational movement with respect to the stator 14 by pins 20 and sealed with respect to the stator by sealing rings 19. The shaft 18 on which the rotors 16, 17 are mounted, one fixed and the other axially movable, passes through a hole in the partition and is sealed with respect thereto by a seal 11.
Patent GB-1354838-A (GB)
Title: Process for the preparation of steel products
IPC: C21D3/04
Filed: 1972-10-18
Abstract: 1354838 Decarburizing steel CSEPELI_ FEMMO 18 Oct 1972 [21 Oct 1971] 48038/72 Heading C7D [Also in Division B2] A process for the preparation of steel products such as strips or sheets having a low carbon content comprises depositing alkali metal hydroxide and/or alkaline earth metal hydroxide and/or alkali metal carbonate and/or alkaline earth metal carbonate and/or aluminium hydroxide on the surface of an intermediate steel product having scales produced by hot rolling on its surface and then heat treating the coated intermediate steel product. The heat treatment comprises heating the coated intermediate steel product for 2 to 5 hours at a temperature of between 700 and 950‹C and in air, vacuum, or a protecting gas of a dem point above 20‹C. The product may be pickled, reduced to final dimensions by cold rolling and given a two step heating at 350-600‹C and then 600-780‹C.
Patent GB-1399270-A (GB)
Title: Anchorfreeing device
IPC: B63B21/22
Filed: 1972-12-20
Abstract: 1399270 Anchors P B MERRITT 27 Feb 1974 [20 Dec 1972] 48351/72 Heading B7S A device for freeing an anchor A obstructed by a cable 29 comprises a sleeve 10 having two portions 10a, 10b pivotally mounted on a strip 19 at one end of a lever 18 the other end of which carries a control line 27, the two portions 10a, 10b when axially aligned being slidable down the anchor chain AC and on to the shank AS, the portion 10a carrying a weight 12 for this purpose, the arrangement being such that when the sleeve 10 is positioned on the anchor shank AS a pull on the line 27 will cause the portions 10a, 10b to move relative to each other to grip the shank, as shown, and exert a substantially vertical lifting force on the anchor to clear it from the cable 29. The sleeve portions 10a, 10b have interengaging angled to the axis of the sleeve so that as a pull is exerted on the lever 18, the portions will not tip relative to one another but will squarely contact the anchor shank AS as shown. Axially extending slots (not shown) are provided in the sleeve portions to enable them to be positioned about the chain AC.
Patent GB-1513655-A (GB)
Title: Supply line arrangements for supplying mobile devices
IPC: H02G11/00
Filed: 1976-11-19
Abstract: 1513655 Energy supply line arrangements for mobile devices SIEMENS AG 19 Nov 1976 [19 Nov 1975] 48463/76 Heading B8B A supply line arrangement for supplying energy to a mobile device, such as a bridge crane comprises a supply line that is connected at one end thereof to an input of the mobile device, when it is in use, and a series of line carriages which are drivable to follow such a mobile device and from which the supply line is suspended at respective points therealong, so as to be festooned from one line carriage to the next, wherein the length of the festoon of line between a first pair of consecutive line carriages of the series is greater than that between a second pair of consecutive line carriages of the series, the said second pair being the nearer of the two pairs to the said one end.
Patent GB-1360049-A (GB)
Title: C3 and c4 acetylenic hydrocarbons
IPC: C10L3/02
Filed: 1971-10-19
Abstract: 1360049 Separating acetylenes TENNECO CHEMICALS Inc 19 Oct 1971 [20 Nov 1970] 48530/71 Heading B1L Methyl, di- and vinyl acetylenes and allene are separated from hydrolysis gas mixtures containing up to 10 percent of them by absorption on activated carbon. The C 3  acetylenes may be separated from the C 4  acetylenes by using two beds in series. In order to store the acetylene more safely an inert gas may be absorbed with the acetylenes.
Patent GB-1442350-A (GB)
Title: Gas turbine engine combustion equipment
IPC: F23R3/00
Filed: 1973-10-24
Abstract: 1442350 Gas turbine engine combustion equipment GENERAL ELECTRIC CO 24 Oct 1973 [10 Nov 1972] 49533/73 Heading F1L The invention relates to combustion equipment for a gas turbine engine and to the construction of a flame tube or liner wall therefor. The combustion equipment comprises an outer casing 26 and an inner casing 28 between which are disposed an outer liner wall 22 and an inner liner wall 24 which together define an annular combustion zone 20, an outer annular cooling air passage 14 and an inner annular cooling air passage 16. The outer liner wall 22 comprises a series of telescopically engaged ring members 22a which are formed with apertures 34 for inflow of cooling air. A further wall 36 isdisposed between the outer liner wall 22 and the outer casing 26 to define an inner plenum 38, there being openings 40 in the wall 36 whereby cooling air from the plenum 14 is caused to impinge against the outer surface of the outer liner wall thereby cooling the latter, the air then passing through openings 34 to flow along the inner surface of the outer liner wall as a cooling film. The wall 36 is supported from the outer liner wall 22 by means of brackets 42 which also serve to divide the inner plenum 38 into separate compartments. The airflow into the separate compartments may be arranged so that most air is diverted into those compartments where greatest cooling is necessary.
Patent GB-1155959-A (GB)
Title: Shutters in Gas Ducts.
Inventor: WHITAKER KENNETH LANGSHAW
IPC: F24F11/04
Filed: 1965-11-22
Abstract: 1,155,959. Valves. K. L. WHITAKER. 21 NOV., 1966 [22 Nov., 1965], No. 49570/65., Heading F2V. [Also in Division F4] A flap valve located in a gas duct comprises a flexible strip 7 secured to a perforated plate 10. The Specification describes in detail a ventilation exhaust trunking (Figs. 1 and 3, not shown) having a plurality of these valves adapted to prevent back draught when the fan is inoperative.
Patent GB-1398450-A (GB)
Title: Hinge assemblies
IPC: E05D11/10
Filed: 1973-10-25
Abstract: 1398450 Hinges PAUL HETTICH & CO 25 Oct 1973 [26 Oct 1972] 49769/73 Heading E2F A hinge assembly comprises a hinge arm 2 pivotally connected to a housing 1, a rocker member 10 pivotally carried by the housing and having projections 11, (12), Fig. 3 (not shown), extending into a recess 5 in the housing and cooperable with the hinge arm 2 to retain it in a predetermined position, an extension arm 23 on the rocker member 10 in a chamber 7 adjacent the recess 5 and cooperating with a spring 25 to form an overcentre mechanism tending to retain the rocker member in its limit positions. Either a compression spring or a leaf spring may be used. The rocker member is retained by housing portion 16 which has resilient projections 17, 21 which engage in recesses 18, 22 in the housing 1. The housing is cylindrical and is adapted to be inserted into a door of an article of furniture.
Patent GB-1319433-A (GB)
Title: Screening a black-surround colour cathode ray tube
IPC: H01J9/227
Filed: 1971-10-27
Abstract: 1319433 Luminescent screens ZENITH RADIO CORP 27 Oct 1971 [21 Dec 1970] 49891/71 Heading H1D A method of fabricating a tricolor phosphor dor (e.g. R.G.B.) c.r.t. comprising exposing a photosensitive resist (e.g. water based solution of p.v.a. with ammonium bichromate) to radiation from a source located at each of three exposure positions displaced in a first direction from three reference exposure positions corresponding to the deflection centres of the three electron beams, removing unexposed portions with a solvent, depositing on the unexposed areas a light absorbing material, stripping exposed resist from the screen, and repeating the steps at at least one more time but with the source located at three exposure positions displaced in a different direction from the reference exposure positions, the light absorbing material defining openings in which phosphor material is to be provided. The method permits the provision of phosphor dots of smaller area than the mask holes. The light source may project a linear rather than circular light pattern having a length dimension greater than a width dimension and the length directed along toward the centre of the triangle defined by the reference exposure positions. The displacements in the respective directions may control the horizontal and vertical dimensions of the openings in the coating pattern. In Fig. 2A, S may be 0À190 inch, and + #S need not equal - #S but is usually the same, and in the range 0À030 to 0À065 inch. The sequence of steps may for example be performed twice or three times, in the latter case the displacements defining a triangular pattern about each of the three reference positions, the apices pointing inwards or outwards for example. (Figs. 6A and 7, not shown). The recesses in the coating at each step of a two sequence process are generally approximately semicircular arcs while the geometry for a three sequence may be as in Fig. 6B (not shown). For exposure at the respective positions in each sequence, the faceplate or light source may be indexed or separate tables used for each colour centre. A light source with collimator having circular tip may produce ellipitcal distortion as in Fig. 5A (not shown), and the major axis may be controlled by the light pattern and the minor axis by control of #S. The former may be by suitable shaping and/or masking the collimator tip (e.g. Fig. 5B, not shown). A slot 0À030 x 0À1 inch may be used with #S of 0À030 to 0À035 inch. The light absorber may be applied as colloidal graphite slurry, and dried to fix, and p.v.a. residue stripped with hydrogen peroxide. The light source (Fig. 8, not shown) may have three tips energized individually at each sequence. The resist may contain the phosphor material during the processing or preferably the matrix is formed prior to phosphor deposition. The phosphor dots may overlap the opaque masking material. Round or rectangular faceplates of spherical sections are instanced. Graphite, manganese dioxide, pigment, and ceramic black are light absorbers mentioned.
Patent GB-1219954-A (GB)
Title: Start and change direction control for pneumatic tools
Inventor: HARDY FRED ELLIOTT
IPC: B25B21/00
Filed: 1968-10-22
Abstract: 1,219,954. Stud-setter. DESOUTTER BROS. Ltd. 17 July, 1969 [22 Oct., 1968] No. 50136/68. Heading B3N. [Also in Division F2] In a hand-held stud setter having a reversible sliding vane pneumatic motor 5, Figs. 1 and 2, the motor is operated in one direction by a button 2, and in the other direction by a button 3, each of the buttons controlling a pressure relief valve 27, 28, and a motor start valve 17, 18. Valve 17, 18 opens before valve 27, 28, when the button 2, 3 is pressed, and closes after valve 27, 28, when the button is released. In a modification, valve 39, 40, Fig. 3, is the starting valve and is of the piston type, whilst the pressure relief valve 42, 43, is a poppet valve, the valves being operated by a rocker 44. In a further modification, both valves are piston valves. In a still further modification, both pairs of valves are on the same axis, so that only one button 50, Fig. 7, is required. As the button is depressed, valve 53 opens channel 54 to channel 55, and pressure is relieved from the motor. Further movement, until detents 51, 52 are reached, causes valve 56 to open channel 57 to channel 58, and the motor rotates clockwise. On still further movement of button 50, both valves close and the motor stops. When the button is moved still further, valve 53 connects channel 58 to channel 60 to relieve pressure from the motor, followed by the opening of valve 56 to connect chamber 57 to channel 61 to rotate the motor in the anticlockwise direction.
Patent GB-1159700-A (GB)
Title: Improvements in Radial Sealing Strips between the Piston and Stator Rotary Piston Internal-Combustion Engines.
IPC: F01C19/10
Filed: 1966-11-09
Abstract: 1,159,700. Rotary-piston internal combustion engines. REGIE NATIONALE DES USINES RENAULT. Nov. 9, 1966 [Nov. 25, 1965], No. 50328/66. Heading F1F. Radial seal strips between the piston and stator of a rotary-piston I.C. engine of the kind comprising a 2N lobed piston of epicycloidal contour revolving eccentrically within a 2N + 1 lobed conjugate contoured stator, comprise strips 3, Fig. 2, inscribed in a circle of diameter d and oscillate in part-circular grooves 4 in the stator extending axially at locations where two adjacent lobes 1<SP>1</SP>, 1<SP>2</SP> merge. The strips include arced portions AB of radius R centered at P offset from the center O of the strip, tangential extensions A<SP>1</SP>A, BB<SP>1</SP> at either end thereof and "cut-back" portions A<SP>1</SP>C and B<SP>1</SP>DE to ensure that no interference occurs on the piston 2 moving into either of its extreme positions 2<SP>1</SP>, 2<SP>2</SP>. With piston rotation in the direction of the arrow, P is offset such that the extensions of all the radii of portion AB and of the lines A<SP>1</SP>P, B<SP>1</SP>P pass to the right of center O so that the frictional force will be in a direction tending to release the engagement between the sealing strip and the piston. A plurality of springs 5 received in holes 7 in the stator tend to rotate the sealing strip about the axis O in a direction opposite to that in which the piston tends to rotate the strip. During rotation of the piston the piston is constantly tangent to the strip 3 at points lying normally between A and B.
Patent GB-1127921-A (GB)
Title: Improvements in or relating to boxes or packets
IPC: B29C67/00
Filed: 1963-12-20
Abstract: 1,127,921. Boxes. MOLINS ORGANISATION Ltd., and E. A. LUDDINGTON. 19 March, 1965 [20 Dec., 1963], No. 50353/63. Heading B8P. [Also in Divisions B5 and E2] A box for cigarettes &c. is moulded in two generally rectangular flat parts 1 from a foamed plastics material such as polystyrene, each part having a flange 7 along one of its long sides, the flanges being subjected to heat and pressure so that they are substantially defoamed and they make a web which acts as a hinge between the two parts. Each box part 1 has a lip extending round its inner edge and is moulded on its inner side with a series of grooves across its narrower section. A sealing film of, e.g. polythene, may be applied to the inner and/or outer surfaces of the box parts 1, to render them airtight. The two box parts 1 can be moulded as a single unit, with the joining web between them subjected to heat and pressure before the parts have been removed from the mould. Alternatively, each box part can be moulded separately, and the two flanges 7, Fig. 3 (not shown), placed in contact with each other over a steam, electrically &c. heated bar (9) in a jig, a heated roller (11) biased by weights or springs then being passed over the flanges to join them &c. As a modification of the process, heated pressure bars can be used instead.
Patent GB-1374085-A (GB)
Title: Method and apparatus for producing animated motion pictures
IPC: G03B15/08
Filed: 1971-10-29
Abstract: 1374085 Television INSTRUCTIONAL DYNAMICS Inc 29 Oct 1971 [29 Oct 1970] 50448/71 Heading H4F [Also in Division G2] Apparatus for producing animated motion pictures includes means to produce and view background images (projector 11 and screen 12), means to generate a series of electrical signals representing a drawing (probe 17 and potentiometric grid 16), means to convert these signals into a visual display (monitor 19), the background images and the drawing can be viewed in superimposition and means (camera 20) for recording the drawings and background images separately or simultaneously.  As shown probe 17 and grid 16 are similar to those disclosed in Specification 1,293,403 and camera 14 records the composite image on monitor 15. To operate the artist draws an object whose movement is to be animated using the probe 17 and grid 16. The image of this drawing is shown on monitor 19 and by means of camera 14 shown on monitor 15. The artist adjusts the drawing until satisfied when the camera 20 (capable of single framing) records the composite image. The next image in which the animated object will have moved slightly is built up by the storage device 21 showing the previous image on the monitor 19 (and thus on monitor 15) and by use of the probe 17 this image is suitable altered and the composite image recorded by camera 20. Other arrangements are disclosed Figs. 3, 4, 5 (not shown) which do not simultaneously record the animated object and its background or cine film. However on all embodiments the artist can see the composite image superimposed on the grid 16.