baber/WOPTO huggingface dataset:
Patent GB-1021033-A (GB)
Title: Improvements in or relating to air filters
IPC: F02M35/022
Filed: 1963-09-24
Abstract: 1,021,033. Air filters. CESKOSLOVENSKA AKADEMIE VED. Sept. 24, 1963 [Sept. 24, 1962; Nov. 2, 1962], No. 37534/63. Heading BIT. An air filter as shown in Fig. I comprises one or more whirling-type separators 4 provided at their inlets with tangential inlet ports 5 and accommodated in a casing 1 whose lower portion 11 contains a wetting liquid, tubes 8 extending from below the surface of the wetting liquid into the end walls 7 of the separators 4 and their inlet ports 5 so that the difference in static pressure between the interiors of the chambers 4 and the spaces in front of them causes the wetting liquid to be drawn up through the tubes 8 and into the separators 4. As shown in Fig. 1, the inlet ports 5 are partially submerged in the wetting liquid so as to allow the liquid to enter the separators 4 directly, but where a smaller amount of liquid is sufficient, this can be supplied by means of the tubes 8 only, by adjusting the level 3 of the liquid so as to be below the end walls 7 of the separators 4. An alternative form of separator 4 incorporating a spray nozzle at its inlet is shown in Fig. 2, its end wall 16 being placed closely above the surface of the wetting liquid while the body 17 of the nozzle is extended below the surface by a tube 19 through which the wetting liquid is drawn up. The body 17 is provided with channels 20 through which the liquid flows due to the upward flow of air between helical blades 18. The air enters the filter between the casing I and an inner casing and flows into the separators 4 either through the inlet ports 5, Fig. 1, or between the helical blades 18, Fig. 2, where it is set in turbulence and flows upwards along helical paths towards the discharge ends 9. The liquid entering the separators 4 is atomized by the quickly streaming air and deposited on the walls of the separators 4 producing a continuous film which is propelled upwards along the walls. At the discharge ends 9, the wetting liquid containing the dust particles from the air is sprayed into a space 10 above the separators 4, returning to the casing 1 through a tube 12, while fine droplets carried by the purified air are retained in a drop catcher 13 of fibrous material or perforate sheets and returned to the casing 1 through a tube 14 concentric with the tube 12. The filter is particularly suited for use in motor vehicles and in order to avoid the formation of waves in the wetting liquid during travel over rough ground, which would cause oversaturation of some of the separators 4 with the wetting liquid, a perforated baffle 15 is placed below the surface of the liquid. This permits the liquid to flow through in both directions, but mitigates and brakes its rapid flow.
Patent GB-1244674-A (GB)
Title: Apparatus for rotationally positioning a supported load
IPC: B66C13/08
Filed: 1969-07-25
Abstract: 1,244,674. Orienting suspended loads. SKAGIT CORP. 25 July, 1969 [3 Jan., 1969], No. 37543/69. Heading B8H. Apparatus for orienting a load suspended on a cable 85 from a crane boom 90, Fig. 1, comprises a platform 10, a flywheel 60 in a bracket 48 supported for rotation about a horizontal axis by shafts 51, 52 mounted in bearings on gimbal 30 members 32, 33 and a clutch 20 between the platform 10 and a shaft 25 fixed to gimbal member 31. In use the flywheel 60 is driven by an electric motor 64. If it is desired to rotate a load 15, attached to the platform 10, about a vertical axis power is supplied to a motor 50 to tilt the bracket 48 and hence the flywheel 48 about the said horizontal axis. This results in a torque about a vertical axis which is transmitted to the platform 10 through the clutch 20. Fig. 4 shows a modification wherein the motor 50 is mounted on the platform 10. The action of the flywheel is to render the shaft 25 relatively stiff and rigid so that drive applied by the motor 50 to drive element 105 secured to the gimbal shaft 25 rotates the platform 10, the flywheel 60 being tilted about the horizontal shafts 51, 52 with the frame 48 by reaction. Electric power is supplied through slip rings in blocks 40, 45 and 47, 48. The clutch 20, which is normally engaged, may be disengaged in order to reset the initial position of the flywheel 60 so as to permit several applications of the driving torque, if required.
Patent GB-1046563-A (GB)
Title: Improvements in a knitting process and means for making absorbent and porous fabric on a flat frame, or straight bar, knitting machine
IPC: D04B1/02
Filed: 1964-09-17
Abstract: A flat knitted fabric is produced on a straight bar machine which has sinkers with throats at two levels and loop transfer points so that yarns fed from two yarn carriers are knitted in a plated relationship but with alternate sinker loops of the plated yarn extended to form pile loops and with the alternate needle loops transferred to the adjacent needles such that the resultant fabric is a flat openwork fabric with pile loops, Fig. 6 not shown.  The ground yarn may be a synthetic yarn and the plated pile yarn composed of cotton.
Patent GB-850025-A (GB)
Title: Improvements relating to pressure relief valves
IPC: F16K17/12
Filed: 1957-12-06
Abstract: 850,025. Valves. BUTLER & CO. (BRISTOL) Ltd., W., and KERNON, D. R. Jan. 16, 1959 [Dec. 6, 1957], No. 38047/57. Class 135. A fluid pressure relief valve comprises a valve body 1, 11 having a seat 5 and a movable part which includes a closure member 6 and is movable by the fluid pressure to be relieved along a fixed guide 13 to open the valve, a flexible membrane 16 extending between the movable part and the body, and closing a space capable of holding oil which has'access to the surfaces of contact between the movable part and the guide for their lubrication, a wall by which this space is bounded having one opening 30 fitted with a non-return valve and a smaller opening 29, the arrangement being such that as the valve is opened oil passes out of the space through both openings 29, 30 but on closing oil re-enters the space through only the smaller opening 29 to provide a dashpot effect. As further shown, the movable part of the valve includes also a spindle 9 working in the guide 13 and a cup-shaped member carried by the spindle, this member having the inner part of the membrane 16 secured thereto and forming a well whereby the oil has access to the working surfaces. A lowermost weight 20 for loading the valve is formed to seat on a soft packing 25 in the closed position to protect the oil spaces within from the surrounding atmosphere.
Patent GB-1480401-A (GB)
Title: Filament-type semiconductor switch device and method of making the same
IPC: H01L27/10
Filed: 1974-08-30
Abstract: 1480401 Semi-conductor switching devices ENERGY CONVERSION DEVICES Inc 30 Aug 1974 [12 Sept 1973] 38047/74 Heading H1K The reduction to a stable value of the threshold voltage of a switch, consisting of a body of normally non-conductive and generally amorphous semi-conductor material comprising at least two elemental components disposed between a pair of electrodes, which occurs on repeatedly setting it to a conductive condition, characterized by a filamental current path, by a unidirectional voltage pulse exceeding a threshold amplitude and resetting it by a unidirectional current pulse exceeding a certain amplitude, and is caused by electromigration of the more electropositive of the elements to the positively biased electrode, and/or of the more electromagnetive element to the negatively biased one, is accelerated by providing a region enriched with the element which migrates to one of the electrodes directly beneath said electrode. As described the semi-conductor material is Ge A Te B X C Y D  where A is 0À05-0À6, B is 0À3- 0À95 C is 0-0À1 when X is Sb or Bi and 0-0À4 when X is As; and D is 0-0À1 when Y is S and 0-0À2 when it is Se, and the region under the positive electrode is enriched with or consists wholly of Te. Typically a number of such devices based on a 1À5 Á thick Ge-Te alloy layer 6<SP>1</SP> (Fig. 6) are disposed in series with PN diodes 30-28, at the intersections of X and Y matrix conductors consisting respectively of N+  diffusions 26 in supporting Si body 2<SP>1</SP> and Al, Cu, Au or Ag conductors 33, 86<SP>1</SP> and have positive electrodes 8a<SP>1</SP> of amorphous Mo underlain by a 0À7 Á thick Te layer and negative electrodes 4<SP>1</SP> of PdSi in holes in silica film 2a<SP>1</SP>, the device layers being initially deposited overall as by sputtering and etched to form, the optional Te layer on electrode 4<SP>1</SP> having to be confined to hole 24 by etching to prevent short circuiting of the device by electrode 8a<SP>1</SP>. Damaging thermal stresses at the positive electrode-semi-conductor interface are avoided by making layer 8a<SP>1</SP> thin and layer 8b<SP>1</SP> thick so as to act as a heat sink. The physical nature of the switching mechanism and the requirements it imposes on the setting and resetting pulses are discussed.
Patent GB-326885-A (GB)
Title: Improvements in or relating to storage and reclaiming apparatus for bulk material
IPC: B65G65/28
Filed: 1928-12-24
Abstract: 326,885. White, A. E., (Robins Conveying Belt Co.). Dec. 24, 1928. Discharging and feeding devices for endless-belt conveyers; troughs; guiding endless chains; guards to prevent falling-off and spilling.-Apparatus for storing and reclaiming coal, sand, gravel, &c., comprises two travelling structures 24, 39, Fig. 3, moving simultaneously along opposite sides of the storage area A (which is not necessarily rectangular), means such as a conveyer 35 on the tower 24 over-hanging the storage area so as to form a pile along one side, and a drag-line scraper 42 movable between the structures 24, 39 for distributing and reclaiming the material. The material is brought to the storage site by a conveyer 16, Fig. 2, delivering through a hopper 18 provided with a hinged flap 20<1> either to an off-take conveyer 20 or to a main conveyer 15 extending along one side of the area. The upper run of the conveyer 15 is led around a throw-off pulley 31 in the tower 24, the looped part of the belt being guided by a trailer tower 29 and connecting truss 28. The material is delivered through a hopper on to a transverse conveyer 35 which forms a pile along the front of the storage area as the tower 24 is moved along. For reclaiming the material from the pile, the scraper 42 is hauled to the front of the storage area A and. up an inclined plate 48 into the lower end of a trough 52 forming the casing of a transverse conveyer 49, Figs. 3 and 6, carried by the tower 24 and delivering to a hopper 58. This hopper is provided with a hinged flap to direct the material either to the main conveyer 15 for delivery to the off-take conveyer 66, or to a transfer conveyer 62 leading to a hopper 63 in the trailer tower delivering to the looped portion of the main conveyer 15, which in this case runs in the reverse direction and delivers to the off-take conveyer 20. The inclined plate 48 may be mounted all along a low wall 47 or it may be an extension of the trough 52 overhanging the wall. The transfer conveyer 49 comprises endless chains 49<a>, running on guides 56 beneath overhanging parts 55 of the trough casing 52. A central rail 57 supports the scraper when it enters the lower end of the trough. In a modification, Figs. 9 and 10 (not shown), a storage pile is formed at either side of the main conveyer 15, the. conveyers 35, 50 and the tower 39 being duplicated. In another modification, Fig. 12, the tower 24 forms a staith provided with a grab apparatus 67 for unloading coal from a vessel C. The grab delivers to a hopper 33, and'a reversible delivery conveyer 68 beneath the hopper outlet feeds the material continuously either to the transverse conveyer 35 for forming a pile or to shoots 70, 71 leading to the main conveyer 15 for deliver direct to the plant bins.
Patent GB-1021756-A (GB)
Title: Thermoelectric device
IPC: H01L35/22
Filed: 1963-09-27
Abstract: 1,021,756. Thermoelectric elements. RADIO CORPORATION OF AMERICA. Sept. 27, 1963 [Oct. 11, 1962], No. 38265/63. Addition to 980,289. Heading H1K. Thermoelectric elements of the parent Specification, i.e. elements containing 50 to 70 atomic per cent silicon remainder germanium with an impurity concentration of from 4 x 10<SP>19</SP> to 6 x 10<SP>19</SP>atoms/cm.<SP>3</SP>are modified by increasing the atomic percentage of silicon to the range 70 to 95 and/or by increasing the impurity concentration to between 6 x 10<SP>19</SP> to 4 x 10<SP>20</SP>atoms /cm.<SP>3</SP>.
Patent GB-966701-A (GB)
Title: Improvements in or relating to machines suitable for operating on shoe soles
Inventor: QUARMBY ROBERT CHARLES
IPC: A43D87/00
Filed: 1959-11-13
Abstract: 966,701. Roughing, skiving and splitting shoe soles. BRITISH UNITED SHOE MACHINERY CO. Ltd. Nov. 11, 1960 [Nov. 13, 1959], No. 38501/59. Addition to 919,343. Heading B4B. In a machine as desclosed in the parent Specification for operating on shoe soles, means are provided for automatically changing the speed of relative movement, in a direction lengthwise of a sole in the matrix, between the matrix and the cutter when different parts of a sole in the matrix are operated upon. Preferably, the means are arranged to move the matrix first at a relatively high speed until the heel end of the sole nearly reaches the cutter, then at a considerably lower speed while the heel end is operated upon, then at a higher speed while the waist and part of the forepart are being operated upon and finally at the considerably lower speed while the toe end is being operated upon. An electric motor 34, Fig. 1, drives a pump 36 which draws oil from a sump S, Fig. 21, and supplies it to a piston and cylinder arrangement 38, 40 for driving a carrier 8 for the matrix forwardly and rearwardly and to a piston and cylinder arrangement 84, 86 for moving a cutter support 18 downwardly and upwardly. The speed of the carrier is controlled automatically by means of a choke valve 42 included in an hydraulic circuit which also includes a four-way valve 44 and a sequence valve 48. The supply of oil to the cylinder 86 is controlled by a valve 90. Movable with the carrier are adjustable cams 52, 124, Fig. 4, and an adjustable stop 136, Fig. 1, which are provided with surfaces 54, 128, 130, 132 and 134 engageable with a cam roller 56 carried by one arm 58 of a lever 60 the other arm 62 of which is connected to the upper ends of rods 64, 106, the lower ends of which are operatively connected to the valves 42, 90. The hydraulic mechanism is arranged to move the cutter towards the matrix before a sole therein is operated upon and to raise the cutter after the sole has been operated upon and before the carrier is returned to its starting position. The hydraulic mechanism also includes means for raising the cutter to a position in which the cutter teeth may be removed or sharpened and means are also provided whereby the cutter cannot be raised until rotation of the cutter has been stopped. Means are provided for removing cuttings. Means for pressing the sole into the matrix while being operated upon by the cutter may, alternatively, comprise a row of spring-influenced pivotally-mounted fingers 270, Fig. 23, and a relatively thin plate 280 which is pressed against the sole by the fingers.
Patent GB-344950-A (GB)
Title: Device for recording sound
IPC: G11B7/00
Filed: 1929-12-16
Abstract: 344,950. Recording-apparatus. BRITISH ACOUSTIC FILMS, Ltd., 52, Haymarket, London.-(Assignees of Poulsen, A.; 14, Fjordsalle, and Petersen, A. C. G.; 183, Norrebrogade, Copenhagen.) Dec. 16, 1929, No. 38515. Convention date, Dec. 22, 1928. [Class 106 (iv).] Photographic recorders.-In making a photographic record of sound by means of a beam of light reflected from a mirror, the dimensions of the mirror on the active part thereof are such as to produce a linear image of the mirror transversely of the film. The mirror s, Fig. 1, in the form of a strip on an otherwise blackened or coated surface receives a beam from a source of light k directed through a concentrating lens l and reflects it through a cylindrical lens c to form a linear image b of the mirror on the photographic film f. A stop x may be inserted in the path of the beam to the lens l in order to make sharply defined ends to the image, a lens being provided in front of the mirror or the mirror being made cylindrical about an axis parallel to the film as shown in Fig. 3, to assist the definition of the ends of the stop. Variable density images may also be produced by arranging the mirror to oscillate about an axis transverse to the film and to reflect a beam through a slotted plate so that it occupies varying amounts of the depth of the slot in accordance with the sound fluctuations.
Patent GB-821156-A (GB)
Title: Vehicles fitted with means for facilitating loading and unloading
Inventor: MARSDEN KENNETH WILLIAM
IPC: B60P3/05
Filed: 1956-12-19
Abstract: 821,156. Loading overhead rails on vehicles. MARSDEN (COACHBUILDERS) Ltd. March 13, 1958 [Dec. 19, 1956], No. 38641/56. Class 78 (4). Pivoted extensions 14 of rails 11 below the roof of a vehicle body 10 can be moved into and from alignment with the rails 11 hydraulically. As illustrated three such rails are joined by a cross-bar 17 connected at its ends to a pair of hydraulic rams 18 which can move the extensions 17 to a vertically depending position in which they help to retain loads suspended from the rails 11, and into a stowed position folded back under the rails 11, as well as into the aligned position which permits hooks or carriages to slide between the rails 11 and the extensions 14. The rails are of inverted-T section and the flanges 14a of the extensions 14 are bent up to form stops.
Patent GB-1353739-A (GB)
Title: Light exposure means for shadow or contact printing
IPC: G03F7/20
Filed: 1970-08-12
Abstract: 1353739 Lighting arrangement for contact printing RANK ORGANISATION Ltd 3 Nov 1971 [12 Aug 1970 19 March 1971] 38809/70 and 7288/71 Headings G2A and G2J Light exposure means, for use in shadow or contact printing, comprises a light source arranged to provide, in a printing plane, an effective brightness distribution having a bright zone surrounding a central less bright zone, this distribution being such that when a mask is illuminated in the printing plane under conditions of transitional Fresnel-Fraunhofer diffraction, this being the diffraction which is observable at a distance from a coherently illuminated line or slit of the same order as the line or slit width, the illumination condition produced by the light incident on any given part of the mask produces diffraction patterns which tend to cancel each other over part of said patterns. In the embodiment of Fig. 4, light from a point source 1 is reflected through 90 degrees by an element 5, passes through a collimator 7 and finally through a wedge prism 6 which is rotated by a motor 8 and belt drive 9. As the prism rotates the emergent collimated light beam performs a conical scan of a mask 2 and lightsensitive substrate 3 to produce the bright zone surrounding the less bright zone. Alternatively the positions of the prism and collimator are inter-changed Fig.3 (not shown). In other embodiments the conical, or a cylindrical scan, is achieved by placing a rotatable mirror Fig. 5 (not shown) or a rotatable rhomb prism Fig. 6 (not shown) in the light path. In further embodiments, which avoid the use of moving components, the beam from a point light source is split into several component beams, arranged in an annulus, by a multiple prism Figs. 7 and 8 (not shown) and by an annular array of reflectors Figs. 9 and 10 (not shown).
Patent GB-1397849-A (GB)
Title: Manufacture of glass bodies
IPC: C03C1/00
Filed: 1973-08-16
Abstract: 1397849 Manufacturing glass bodies SIEMENS AG 16 Aug 1973 [18 Aug 1972] 38854/73 Heading C1M A glass body is manufactured by forming a homogenous silicate melt containing lithium tetraborate and lithium sulphate; casting the melt; and allowing the cast melt to cool and form the desired body. Preferably 20-50 parts by weight of lithium sulphate per 100 parts of lithium tetraborate are used, the lithium salts acting as a deflocculant for the melt. The silicate may be cement powder or feldspar. The preferred tetraborate : sulphate : silicate weight ratio is 5 : 2 : 2. The melt is preferably formed by heating the constituents to 1050- 1200‹ C., e.g. in a crucible made of an alloy consisting of 95% by weight Pt and 5% by weight Au. The melt is preferably cast on to a press punch to form, e.g. a disc (in which case an iron moulding ring is used), the press surface being preheated to 350-410‹ C. The cast and pressed product (e.g. a disc) may be used as a sample for determination of the glass composition by X-ray fluorescence analysis.
Patent GB-847615-A (GB)
Title: A method of and means for controlling the application of size to yarn
IPC: D06B23/24
Filed: 1958-01-22
Abstract: 847,615. Coating yarn. LEESONA HOLT Ltd., [formerly TWO GATES MILL Ltd.]. Jan. 22, 1958 [Dec. 20, 1956], No. 38886/56. Class 140. A method of applying and manually controlling the application of size to textile yarn comprises delivering stock size liquor and water in predetermined weight ratio to a chamber 18, delivering the mixture continuously from the chamber 18 to a tank 34 at a predetermined rate, passing yarn Y through the tank 34 at a given linear velocity, returning surplus mixture from the tank 34 to the chamber 18 continuously, controlling the admission of fresh mixture to the chamber 18 by the liquid level therein, the rate of delivery of the mixture to the tank 34 exceeding the rate at which it is picked up by the yarn, and the rate of delivery of stock size liquor to the chamber 18 being proportional to the speed of passage of the yarn and the amount of size to be applied thereto.. The apparatus operates as follows. Pumps 14, 16 deliver hot water and size liquor respectively from tanks 10, 12 to the mixing chamber 18 through a pipe 25, the relative strokes of the pumps 14, 16 being adjustable by means of a manually adjustable pivot 56 engaging a slot 55 in a crosshead 52 to vary the relative proportions of size and water delivered to the chamber 18. Alternatively, a variable gear may be employed to vary the speeds of the pumps in such a way, through a differential gear, to keep the sum of the two speeds the same. The crosshead 52 is manually adjustably linked at 58, 59 through parts 59 ... 63 to a shaft 64 driven from a squeeze roller 47 in the coating tank 34 to provide a correlation between the speed of passage of the yarn Y and the rate of delivery of water-size mixture to the chamber 18. The chamber 18, which is heated, e.g. by steam, and is thermostatically controlled, supplies the mixture via a pipe 33 to the tank 34 by a pump 29, a larger pump 38 returning excess mixture to the chamber 18. Paddles 19 driven by a shaft 23 which also drives the pumps 29, 38, agitate the mixture in the chamber 18. In operation, the operator watches the level in the chamber 18, and adjusts the pressure on squeeze rollers 47, 48 or the stroke of the pumps 14, 16 at 58, 59 to keep the level in chamber 18 constant. The strokes of the pumps 14, 16 are adjusted thereafter at 55, 56 to restore the original desired rate of size delivery from the tank 12 to the chamber 18. The pumps 14, 16 thus supply mixture to the chamber 18 at a rate equal to that at which the yarn Y absorbs the mixture in the tank 34. The admission of fresh mixture to the chamber 18 is controlled by a float 78 therein which actuates an adjustable valve 26 on the pipe 25 when the liquid level in the chamber 18 rises undesirably. The drive to the pumps 14, 16 includes an epicyclic gear embodying a slipping clutch which is actuated when the valve 26 is closed to reduce the speed of the pumps. The clutch may be associated with a pressure gauge and a warning light.