baber/WOPTO huggingface dataset:
Patent GB-952699-A (GB)
Title: Machine for the manufacture of packaging bags
IPC: B31B50/00
Filed: 1962-08-28
Abstract: 952,699. Forming bags on mandrels. F. HESSER MASCHINENFABRIK A.G. Aug. 28, 1962 [Nov. 3, 1961], No. 32947/62. Heading B5D. A stream of air from the interior 8 (Fig. 6) of a mandrel 2 (Fig. 6) about which a bag blank is folded ensures that the ends B of the blank are turned outwardly before they are welded, to form a fin seam, by welding heads 5, 6. The air issues from holes 7 (see also Fig. 4) lying in a groove 9 in the mandrel. Further holes 21 can be connected to suction to retain the wrapper. The blowing air can be admitted to the interior 8 of the mandrel through a pipe 12 passing through a block 11 for forming end folds in the bag, and fitted with a flexible bush 13 which, when the forming block 11 is moved towards the end of the mandrel, seals around the bore 8 in the mandrel. The block 11 may include a valve which passes air through the tube 12 only when this is pressed, by engagement with the mandrel, into the block 11 against the bias of a spring. Suction is connected to the holes 21 by a manifold 23, 24 carried by a hub on which a series of the mandrels 2 are mounted to rotate about a vertical axis through a series of folding stations. The blowing air to the holes 7 may be similarly introduced, instead of by the tube 12, and may be controlled by cam-operated electromagnetic valves. The bag is folded about the mandrel by a folding box 4 (Fig. 5) provided with a moving bottom 3 and with air jets 36 which assist the folding. The blanks are fed towards the mandrel 2 by intermittently rotating rollers (not shown) and are cut off by a guillotine (not shown) adjacent the folding box 4.
Patent GB-726168-A (GB)
Title: Stacking device for sheets in cross-cutting machines or in other sheet ejecting machines
IPC: B65H29/24
Filed: 1953-11-27
Abstract: 726,168. Sheet delivery apparatus. JAGENBERG-WERKE AKT.-GES. Nov. 27, 1953 [Nov. 29, 1952], No. 32970/53. Class 100 (1) A sheet stacking device in which the sheets to be piled up are carried, during the piling up process, by a stream of air, the edge of the stack in formation being aligned by a jogging wall, is characterized in that the jogging wall is developed and used as a conductor or supply sheet for the stream of air carrying the sheet to be stacked. The sheets are delivered from a cutting-machine by endless conveyers 4, 5 on to a bridge 8 and are ejected on to a stack 11, bounded on one side by a jogging wall 13, made hollow and provided with air apertures 15, and notches 16 for assisting delivery of the sheets. Air is supplied to the jogging wall 13 through a hollow shaft 17 about which the wall 13 is oscillated by an eccentric 22.
Patent GB-868619-A (GB)
Title: Steel manufacture
IPC: C21C5/32
Filed: 1958-10-16
Abstract: A process of refining steel comprises simultaneously blowing the melt from the top and the bottom, the bottom blast passing through tuyeres arranged in an annular area the inner diameter of which is at least half that of the interior surface of the bottom. Some of the tuyeres may be inclined towards the converter walls or may be inclined to produce a rotary movement of the melt, to produce a deeper layer of slag at the centre of the melt on to which the top blast impinges. The top blast may be moved relatively to the melt, e.g. by having the ring of tuyeres off-set with respect to the centre line of the converter, or by moving the top blowing lance transversely of the melt.  Slag forming materials may be added in suspension in either the top or bottom blast.
Patent GB-413555-A (GB)
Title: Improvements in or relating to grinding machines for hard materials
IPC: B24B41/047
Filed: 1933-11-25
Abstract: 413,555. Grinding flat surfaces. SOC. MARBRIERE DE PARIS, 3, Place des Vosges, Paris. Nov. 25, 1933, No. 33053. Convention date, Dec. 22, 1932. [Class 60.] In apparatus for grinding flat surfaces, comprising rotating grinding wheels 17 having a planetary motion about a central shaft 8 which is perpendicular to the surface and is moved in a direction parallel to it, the wheels 17 are so shaped and disposed that they contact with the surface to be ground on a generatrix only of the grinding surface. In the form shown, the wheels have conical faces, and are mounted on inclined axles 14, the bearings of which are carried by a rotating flange 12 which is unitary with a sleeve 10 rotated through a driving-pin 9 by the central shaft 8. Bevel pinions 15 on the axles 14 engage a fixed gear ring 18 external to them, causing the grinding wheels to rotate on their axes in a direction opposite to that in which the reaction of the ground surface tends to rotate them. A form of apparatus is also illustrated in which the grinding wheels are cylindrical, and rotate on horizontal axes extending radially from the central vertical shaft. The wheels may be rotated on their axes by the reaction of the ground surface, instead of being positively driven.
Patent GB-823330-A (GB)
Title: A receptacle for plants
IPC: A01G9/02
Filed: 1957-10-23
Abstract: 823,330. Receptacles for plants. FERRAND, M. Oct. 23, 1957 [Oct. 26, 1956], No. 33064/57. Class 6(2). A receptacle for plants comprises a troughlike container provided with a platform 30 of porous material which is permeable to air and water, for supporting earth. The platform is provided with a depending support portion which either follows the configuration of the container as in Fig. 2, or is vertical as in Fig. 3, and the container is provided with a water inlet 35 and an outlet 36 at a level between the uppermost and lowermost points of this support portion. The earth is therefore moistened by water rising by capillarity to the platform 30 and receives air from the space 39.
Patent GB-1513375-A (GB)
Title: Moulding process
IPC: B29C43/42
Filed: 1974-07-26
Abstract: 1513375 Moulding in two stages DENIS LEADER (MACHINERY) LTD 22 July 1975 [26 July 1974 29 July 1974 4 Nov 1974 26 March 1975] 33147/74 33440/74 47634/74 and 12675/75 Heading B5A In a moulding process, the material is introduced into the mould cavity by intrusion (i.e. without axial movement of the axially reciprocable screw), and the mould cavity is reduced in size and further material introduced by injection (i.e. by axial movement of the screw). The reduction in the size of the mould cavity may take place before, simultaneously with, or after commencement of the injection stage. The method may be applied to "sandwich" moulding; in this case, the skin material is intruded into a partially open mould, and the core material is injected subsequently, the mould closing before introduction of the core material has ceased. A further portion of skin material may be injected after the core material. The method is stated to be particularly applicable to the production of containers, cups, buckets and the like having thin (5 mm) walls with a flow/thickness ratio (as defined) of at least 30. By incorporating an intrusion step it is possible to produce articles whose weight is greater than the theoretical shot weight of the injection cylinder used.
Patent GB-617769-A (GB)
Title: Improvements relating to devices for expanding piston rings and the like
IPC: B25B27/12
Filed: 1946-11-08
Abstract: 617,769. Ring-expanding tongs &c. SULZER FRERES SOC. ANON. Nov. 8, 1946, No. 33259. Convention date, Dec. 18, 1945. [Class 61 (ii)] A split piston-ring expanding device comprises two jaw levers 2 shaped at 14, 15 to engage inside and outside each split ring end and each connected by parallel links 7, 8 to lever arms 1 pivoted together at 9 and operated either by right-and-left screw 11 as shown or by grip levers.
Patent GB-677619-A (GB)
Title: Improvements in or relating to containers for tablets, capsules and the like
IPC: B65D5/72
Filed: 1949-12-29
Abstract: 677,619. Cartons. TAYLOWE, Ltd., and DELLAR, F. R. Dec. 7, 1950 [Dec. 29, 1949], No. 33265/49. Class 18 A carton has a slide element 14 having an aperture 17 which may be brought into coincidence with apertures, in top panels of the carton for dispensing the contents. In one embodiment, a tubular shell is formed by base and side panels 1, 2 and elements 3, 4 joined by tongue-and-slot connections 5, 6. The slide 14 is laid on the elements 3, 4, with a bent-over extension 15 entering beneath the portion 5 to limit outward movement of the slide, and a cover 9 and end panels 8, 8a folded round the shell. In other embodiments (not shown), the shell may have the usual glued lap joint and the extension 15 may enter a slit in the adjacent shell panel. Alternatively, the slide or the adjacent panel may have a cut-out tongue engaging a slit in the adjacent panel or slide respectively.
Patent GB-655572-A (GB)
Title: Optical gauging apparatus
IPC: G02B21/00
Filed: 1947-12-17
Abstract: 655,572. Optical gauging-apparatus. PRECISION METHODS CO., Inc. Dec. 17, 1947, No. 33309. Convention date, March 23, 1946. [Class 106 (ii)]  In an optical device for comparing the surface of an object with a standard surface, the object 6 is mounted on a support 5, a follower 24, mounted for movement over the surface in a plane normal thereto, is carried by a member having an index which is given a corresponding movement at a distance from the surface, and a magnified image of the index is projected by a light beam on to a screen 48 having a comparison line representing at the same magnification the profile of the desired surface. As shown, the device is mounted on a movable table 1, Fig. 1, the support 5 being movable across the table on bearings 3 to bring different portions of the surface 7, e.g. of a turbine vane, under the follower 24 which comprises a roller on an arm 23 fixed to a sleeve 22 vertically movable on a horizontally-movable hollow post 19. The post is secured to a rail 11, Fig. 5, mounted by ball-bearings 13 for movement along a horizontal channel 9 having adjustable sides to compensate for wear. The sleeve is similarly mounted on the post and is partially counterbalanced by a weight 40 attached to it by a cord passing over a pulley 38. The arm 23 has two index apertures 41, 42 of which the magnified images 51, 52 are projected by an optical system (Fig. 3, not shown) on to the translucent screen 48, Fig. 2. Each image is associated with a part of the standard profile represented by a pair of lines 49 or 50. If the lower edge of the image lies between the lines throughout its movement across the screen the surface lies within the desired dimension limits. Different index apertures may be used also for different transverse sections of the surface. The follower may be a pointed member and the index of corresponding form. Specifications 586,071 and 616,970 are referred to.
Patent GB-1015002-A (GB)
Title: Improvements in or relating to photosensitive electron emission device
IPC: H01J1/34
Filed: 1963-08-22
Abstract: 1,015,002. Photo-sensitive cathodes; semiconductor devices. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 22, 1963 [Aug. 23, 1962], No. 3315/63. Headings H1D and H1K. A photo-sensitive tunnel-emission cathode comprises a photo-conductive layer PC and an insulating layer N sandwiched between a transparent conducting layer M and a layer L having a low work function surface, with an electric field applied thereacross. The magnitude of the applied voltage V is such that in the absence of illumination of layer PC, the voltage across layer N is just below that at which electrons tunnel through layer N with sufficient energy to penetrate through layer L and into the vacuum v. Layer M may be of indium, layer PC of cadmium sulphide, layer N of aluminium oxide or mangesium oxide, and layer L of potassium, barium oxidized on its surface, gold alloyed with barium, or antimony with a surface layer of caesium. The thickness of layers M, PC, N, L may be 200 Š, 1 to 100 microns, 50 to 100 Š, and 150 Š, respectively. Layer L may be of mesh form. As shown, the cathode is used in a photo-tube comprising a grid G and an anode A and which may be used as an infra-red detection device.
Patent GB-1498245-A (GB)
Title: Tamping roller assembly
IPC: A01B29/04
Filed: 1975-08-11
Abstract: 1498245 Scrapers for cleaning rollers AMAZONEN-WERKE H DREYER 11 Aug 1975 [9 Aug 1974] ,33356/75 Heading B7J [Also in Division A1] Cleaning scrapers 13 extend between the toothed rings 6 on a tamping roller 1 to contact the roller 1 and are detachably mounted on a frame 3, and the angle between the scrapers 13 and the corresponding tangent plane is adjustable. The scrapers 13 may be resiliently mounted or made of resilient material. The scrapers 13 are adjustably mounted by bolts 15 and slots 16, 17 on a support member 12 itself adjustably mounted by bolts 18 and slots 19 on the frame 3, so that the angle of the scrapers 13 can be adjusted without pivoting. The frame 3 is connected to a tractor, or to a cultivator.
Patent GB-190155-A (GB)
IPC: F16H39/20
Filed: 1922-12-06
Abstract: 190,155. Schneider, H. Dec. 6, 1921, [Convention date]. Clutches and speed-varying mechanism; liquidpressure engines.-Hydraulic clutch and variablespeed transmission mechanism comprises a driving-shaft 11 and crank 12, and a rotor 2 geared to the driven shaft, the rotor being provided with cylinders 3 having pistons 4 operated by the crank 12, and with one or more sets of cylinders 13, 23 having pistons operated by a stationary crankpin 10, the eccentricity of which may be varied. A distributing-valve composed of discs 31, 37 carried by the driving-shaft and rotor respectively, passages 30, 55, and passages through the piston 4 allow liquid to be delivered from the cylinders 3. to a passage 44 in the crank-pin 10. When a valve 50 is in the position illustrated, the liquid passes thence to the cylinders 13 through their pistons and is exhausted through a passage 48 into a space 39 from which it returns through a passage 36 into the suction space 40 of the cylinders 3. By moving the valve 50 on to a seat 52 the liquid is given access also to the cylinders 23 and a different speed-ratio is obtained. With the valve 50 in its mid-position, the liquid passes direct from the passage 44 to the space 39. When the crank-pin 10 is in its position of greatest eccentricity, the channel 44 communicates with the space 39 through an annular groove 66 in the disc 37 and no drive is transmitted. As the crank-pin moves towards the centre, the groove 66 is covered and a drive is transmitted at increasing speeds, and when it reaches the centre position a part 59 closes the port through the disc 37, and a direct drive is obtained. The rotors of the primary and secondary pumps may be separate and connected by suitable transmission means, or separate and connected to a common driven shaft, and the crankpin 10 may be non- adjustable, the corresponding rotor being then adjustable.
Patent GB-1223120-A (GB)
Title: Improvements in or relating to releasable fastenings for bracelets or straps
Inventor: BARTON EDWARD GEORGE
IPC: A44C5/20
Filed: 1967-07-20
Abstract: 1,223,120. Clasps. BRODY WILLIAMS & SON Ltd. 19 July, 1968 [20 July, 1967; 8 May, 1968], Nos. 33460/67 and 21810/68. Heading E2A. A fastening for a bracelet comprises two parts 1 and 2 attachable to the ends of the bracelet the part 2 consisting of a plate 9 with a neck portion 10 and two projections 11, the part 1 consisting of a hollow member with top and side openings 12, 14 so that the projections are engageable within the member 1 and a clip member 4 is pivotable to lie over the two parts. The clip member has two lugs 4 which engage between the projections 11 and side wall 15. In a modification the part 1 has a loop the sides of which engage in two recesses in an outer well of a channel shaped part 2. The clip member has one lug which engages between the loop and the inner wall of the channel. Alternatively the channel shaped part 2 has an L shaped slot and the part 1 is U shaped with a cross piece which engages in the slot.
Patent GB-869350-A (GB)
Title: Conditioning apparatus
Inventor: LITZLER CYRIL ALOYSIUS
IPC: D06C29/00
Filed: 1957-10-28
Abstract: <PICT:0869350/IV(c)/1> <PICT:0869350/IV(c)/2> <PICT:0869350/IV(c)/3> Textile treating apparatus comprises means for supporting a sheet material strip and moving it endwise under controlled tension along a linear path, an elongated supply duct supported generally parallel to the path of the tensioned strip, means for supplying a treating fluid to one end of the duct, a series of outlets from the duct spaced at intervals along it and a supply damper comprising a partition extending across the duct and movable longitudinally with respect to it to vary its operative length from the end receiving the treating fluid and hence the number of outlets which pass the fluid.  Means may be provided for supplying a second treating fluid to the other end of the supply duct, the damper dividing the duct and outlets into two sections, one passing the first treating fluid and the other the second treating fluid.  Preferably the treating fluids are two gases of substantially different temperature such that a given portion of the strip is treated by the hotter gas before the cooler gas.  As shown in Fig. 1, an oven 11 may be provided for heating continuously moving strip material 12 between rolls 13, 14 which control its tension through motors 15, 16.  Speed adjustment of strip 12 through oven 11 may be achieved through control pane 17. Gaseous treating fluid is supplied through duct 18 preferably a hot gas and a cool gas to its left and right-hand sides respectively.  A duct 19 may be connected to a fan or blower 23 for circulation of the gaseous treating fluid.  Ports 27 are provided in the side of the duct 18 towards the oven 11 each preferably being connected to a bifurcated nozzle 28 by throat 29.  Nozzles 28 have vents or orifices for directing the hotter gas against the upper and lower surfaces of strip 12.  A damper 31 may be provided for movement longitudinally in duct 18 such that the hotter and cooler gases may be supplied to a variable number of nozzles.  The treating gases may be exhausted from the vicinity of strip 12 via duct 19 which is preferably fitted with damper 32 such that all ports 34 supply hot and cold gas to fans 23, 26 respectively.  Means may be provided for continuously exhausting a fraction, e.g. 10% of the spent recirculated gases and replacing it with atmospheric air.  The nozzles 28, 35 and oven 11 may be protected from the potential energy of strip 12 by the provision of grids 41.  Specification 869,349 is referred to.
Patent GB-1392955-A (GB)
Title: Light emitting diode
IPC: H01L33/00
Filed: 1972-07-19
Abstract: 1392955 Electroluminescence INTERNATIONAL BUSINESS MACHINES CORP 19 July 1972 [30 Aug 1971] 33676/72 Heading C4S [Also in Division H1] The P-N junction of a light-emitting diode has a first portion 22 formed of grown semiconductor material, from which portion the light is actually emitted, and a second portion formed in part by diffused material. Thus in the embodiment shown the junction portion 22 is between a P type layer 12 epitaxially deposited on a P type substrate 10, and an N type layer 14 epitaxially deposited on the layer 12. A diffused P<SP>+</SP> type mesh 18 forms vertical PN junction portion and delineates an array of identical diodes, each of which is contacted by electrodes 28, 30. Conventional masking and passivation techniques are employed, the layers 12, 14 preferably being deposited by liquid phase epitaxy. Vapour epitaxy may alternatively be used. The layers 12, 14 may be of Ga 1-x Al x As on a GaAs substrate 10, the layer 14 being doped with Te and the mesh 18 containing Zn as diffusant. Au/Zn and Sn/Au or Au/Ge/Ni electrodes are applied to the P<SP>+</SP> regions 18 and to the N layer 14 respectively. GaP is also referred to.
Patent GB-173950-A (GB)
Title: Improvements in systems for controlling electric motors
IPC: B60L15/04
Filed: 1920-11-30
Abstract: 173,950. Fletcher, G. H., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 30, 1920. Systems for continuous-current motors only.- Speed control of series motors is obtained by dividing the field into two unequal sections, one of which can be shunted by a resistance and combined in series and parallel with the other. Figs. 2 and 3 show an arrangement for a single motor. One section of the field winding 5 has double the resistance of the other section 4, and can either be shunted by a resistance 6 of equal ohmic value or the sections 4, 5 can be paralleled, the relative amperage carried by the two sections being unchanged. Intermediate steps can be obtained by altering the value of the shunting resistance. Fig. 4 shows the initial arrangement for two motors, one of which 3a has field windings 4<a>, 5<a>, and the other 3<b> has field windings 4<b>, 5<b>. By cutting out the resistances and regrouping the fields and armatures, four control steps can be obtained without altering the relative amperage carried by the sections.
Patent GB-447910-A (GB)
Title: Improvements in the production and/or finishing of screw threads by grinding
IPC: B24B19/02
Filed: 1934-11-26
Abstract: 447,910. Grinding screws &c. HARLEY, S. J., Long Bend, Old Leamington Road, Stivichall, Coventry. Nov. 26, 1934, Nos. 33886 /34 and 31204 /35. [Class 60] In grinding screw threads on valve seats or other shouldered work the work is ground up to the shoulder first by a rough grinding wheel and afterwards by a finish grinding wheel, a radial separation of the work and wheel taking place between the roughing and finishing operations to enable the rough grinding wheel to clear the shoulder. The grinding wheels, which may be of the same or different diameters and have differing abrading qualities, may be secured together with an interposed distance piece. Alternatively, a single wheel having spaced roughing and finishing surfaces may be used or the roughing and finishing wheels may be mounted on parallel axes at opposite sides of the work. The peripheries of the grinding wheels may be formed with a backward taper from the leading edge. Fig. 6 shows a number of shouldered work pieces a mounted in coaxial series, the wheel b rough grinding a thread on one work piece while the wheel b<1> is finishing a previously rough ground thread on another work piece. Specification 394,563 is referred to. According to one Provisional Specification plain cylindrical and taper surfaces may be ground similarly and several grinding surfaces may be provided having different functions.
Patent GB-784274-A (GB)
Title: Radiation-induced polymerisation
IPC: C08F2/46
Filed: 1955-11-28
Abstract: Gaseous or liquid monomers or monomer mixtures or solutions are polymerized by irradiating with radiation from radioactive isotopes, such as cobalt 60, under physical conditions chosen so that the polymer separates as a particulate solid phase, and continuously removing the polymer from the zone of irradiation as soon as it is formed.  The process may be operated in a batchwise or continuous manner and in examples: (1) gaseous vinyl chloride is continuously circulated so as to pass first through a zone of irradiation and then through a filter designed to remove the polymer phase; and (2) liquid acrylonitrile is polymerized in a rotating reactor in which the zone of irradiation is a limited area round the axis of rotation, the polymer formed being caused to move continuously outward by centrifugal force.ALSO:Gaseous or liquid monomers or monomer mixtures or solutions are polymerized by irradiating with radiation from radioactive isotopes, such as cobalt 60, under physical conditions chosen so that the polymer separates as a particulate solid phase, and continuously removing the polymer from the zone of irradiation as soon as it is formed.  The process may be operated in a batchwise or continuous manner and in examples (1) gaseous vinyl chloride is continuously circulated so as to pass first through a zone of irradiation and then through a filter designed to remove the polymer phase; and (2) liquid acrylonitrile is polymerized in a rotating reactor in which the zone of irradiation is a limited area round the axis of rotation, the polymer formed being caused to move continuously outward by centrifugal force.  The Specification also refers to the polymerization of styrene in solution in a solvent which is a precipitant for polystyrene.