baber/WOPTO huggingface dataset:
Patent GB-511238-A (GB)
Title: A reading device for measuring scales in connection with machines for cutting paper,cardboard and the like
IPC: B26D7/28
Filed: 1938-10-06
Abstract: 511,238. Indicating apparatus. JOHNEWERK AKT.-GES. Oct. 6, 1938, No. 29013. Convention date, Dec. 13, 1937. [Class 106 (iv)] [Also in Group XX] In a device having an ocular for reading measuring-scales in machines for cutting paper &c. the reading station is partly surrounded by a screen which permits entry from outside of light for reading the scale and shields the station from undesired reflections in the direction of the line of sight. Fig. 1 shows a cutting machine, the table 4 of which carries a bracket 3 in which is rotatably mounted a disc 1 over which passes the measuring tape 5 connected, e.g., to the saddle of the machine so as to move therewith. The tape is read against an indicator 10 and the reading station is partly enclosed by a screen 7 which permits entry of light, e.g., from a source 8, but prevents undesired reflections. The upper part of the screen is provided with a glass ocular 6 which may be a lens and may be covered by a transparent cap. The screen 7 is pivoted about the shaft 2 of the disc 1 by a pair of shanks 7a.
Patent GB-1360622-A (GB)
Title: Installation for automation of microbiological work technique
Inventor: HEDEN C-G
IPC: C12M1/34
Filed: 1971-06-21
Abstract: 1360622 Micro-biological testing BIOTEC AB 21 June 1971 [22 June 1970; 4 June 1971] 29020/71 Heading C6F [Also in Division G1] A method of micro-biological analysis comprises the steps of cutting from a gel block by means of an automatically operated cutting unit, a gel strip forming a gel substrate and depositing said gel substrate on a glass strip, adding to said gel substrate a micro-biologically active substance, the gel substrate being so shaped, and the active substance being deposited thereon in such a manner, that diffusion or growth of the active substance occurs essentially in the longitudinal direction of the substrate, introducing by automatic means said gel substrate and glass strip into a protective tube, and conveying by automatic means said protective tube past one or more processing stations at least one of which includes an incubation step and thereafter evaluating the response produced in or by the said active substance. An installation for effecting the analytical method comprises an automatically operating cutting unit Fig. 5 for cutting strips from a gel block, an inoculating station Fig. 2 for transmitting to each gel strip disposed on a glass strip a micro-biologically active substance, means for introducing the inoculated gels into protective tubes or cassettes Fig. 4, a thermostatic chamber for incubating said tubes or cassettes, means for continuously feeding the tubes through the chamber and a reading station for evaluation of the response produced in or by the activate substance.
Patent GB-851574-A (GB)
Title: Overload-slip clutch
IPC: F16D7/10
Filed: 1958-09-10
Abstract: 851,574. Slip couplings. GELENKWELLBAU G.m.b.H. Sept. 10, 1958 [Nov. 13, 1957], No. 29050/58. Class 80 (2). An overload slip coupling comprises a driving shaft 1 formed with frusto-spherical recesses 1b engaged by balls 2 located in holes in a driven sleeve 3, an axially slidable sleeve 4 being biased rightwards by springs 8 so that a cam surface 9 thereon engages the balls to force them into the recesses in the shaft. On overload, the balls 2 ride out of the shaft recesses, and force the sleeve 4 leftwards to compress the spring 8, the balls being guided in transverse grooves 1a connecting the recesses lb. Additional rows of balls, &c., such as the row 21, may be arranged in parallel with the balls 2 between the shaft 1 and the driven sleeve 3.
Patent GB-1508424-A (GB)
Title: Reflectors
IPC: G02B5/126
Filed: 1975-06-30
Abstract: 1508424 Reflex reflectors ASSOCIATED ENG Ltd 30 June 1975 [1 July 1974] 29154/74 Heading G2J [Also in Division E1] A refracting retro-reflector has a reflective surface 12 which is made up of alternating portions 16, 18, 20 of greater reflectivity and portions 22, 24, 26 of lesser (e.g. zero) reflectivity so that, when illuminated by an approaching off-axis source (e.g. car head-lamps above the axis), light is returned in a succession of flashes. The reflected beams have successively increasing angles of divergence to allow for the increasing angle subtended at the reflector by the distance between the headlamps and the driver's eyes. In Fig. 1, the radii R A -R D  are equal; to avoid the "stepped" rear surface 12, the radii may be made unequal Fig. 8 (not shown). Also, in Fig. 1, the returned light is symmetrical about axis 11; to produce an upwardly biased distribution, the centres of curvature O A -O C  may be displaced from the axis 11, Figs. 7 and 9 (not shown). In the above embodiments, only the lower part of the rear surface 12 is operative; if the axis 11 is inclined relative to the roadway in which it is used, Fig. 10 (not shown) the entire rear surface may be effective. In the embodiment of Figs. 11 and 12 (not shown) the reflector is generally frusto-conical with the rear surface of smaller diameter than the front face. In Fig. 13 (not shown) the alternating portions are applied only to a lower quadrant of the rear surface, the reflector being of use as a kerb marker. In Fig. 14 (not shown) opposite halves of the alternating portions reflect red and white, the reflector being of use as a lane marker. In Fig. 15 (not shown), the reflector is injection moulded and the sprue is used as an attachment to a housing. In Fig. 16 (not shown) the reflector is of generally rectangular form to allow a larger number of reflectors to be assembled in given area.
Patent GB-1092776-A (GB)
Title: Improvements in or relating to making valve bags from synthetic plastics material
IPC: B31B160/10
Filed: 1965-07-09
Abstract: 1,092,776. Plastics valve bags. REIFENH€USER G.m.b.H. July 9, 1965 [Feb. 1, 1965], No. 29247/65. Heading B8K. [Also in Division B5] A plastics valve bag, Fig. 10, is made from tubular plastics foil by first deforming part of the tube to the shape of a pocket 28, which is subsequently punctured, and then making transverse welds 27 to define each bag. Alternatively a double width pocket (32), Fig. 11, (not shown, may be made in the tubing, welds (31) subsequently formed defining each bag and dividing each pocket. Holes, through which air can escape when the bag is filled, may be made round the circumference of each pocket.
Patent GB-1398631-A (GB)
Title: Semiconductor light source
IPC: H01L29/24
Filed: 1972-06-22
Abstract: 1398631 Electroluminescence V A BABENKO G G BOEVA E E VIOLIN J A VODAKOV E G IVANOVA T G KMITA I I KRUGLOV G A LOMAKINA V P NOKIKOV V I PAVLICHENKO I V RYZHIKOV and G F KHOLUYANOV 22 June 1972 29357/72 Heading C4S [Also in Division H1] A semi-conductor light source comprises a first region of a first conductivity type with an ohmic contact, a second region of a second conductivity type provided with a plurality of separated contacts, and a third compensated region of the first conductivity type between the first and second regions and containing a luminescent activator of the same conductivity type as the second region, the thickness and resistances of the second and third regions being such that the ratio of the resistance between adjacent separated contacts to that across the region adjoining each separated contact is #10. Diffusion procedures are described, and regions adjoining separated contacts may be bombarded with ions of argon, nitrogen or oxygen to increase resistance and quench luminescence. Etching between contacts is also described and also prevents fringe glare. Detailed devices are disclosed including contact materials, thicknesses, dopant concentrations, resistivities and SiC with N, B, Al impurities in varous layers, and also Ga, Be and Sc are disclosed. Contacts may be formed by spraying or melting-in of metal. Operation may be -60‹ to +100‹ C. Application may be to data input and output systems of computers, control systems, for data display, signalling and control boards, and for printing data on photographic film and digital measuring apparatus. Each separated contact may be a character. Reference is included to Specification 1,397,305.
Patent GB-1118632-A (GB)
Title: Collapsible dispensing container
IPC: B65D35/12
Filed: 1965-07-12
Abstract: 1,118,632. Collapsible containers. AMERICAN CAN CO. 12 July, 1965 [13 July, 1964], No. 29394/65. Heading B8D. A collapsible container has a deformable laminated body 10 comprising a fluid-impervious metallic foil lamina 16 enclosed within layers 15, 17 of a thermoplastic material, one of which layers is bonded to a thermoplastic headpiece 12 which itself is bonded to an insert 22, which is preferably laminated and which includes a layer 16A of impervious metallic foil. The foil 16A may be enclosed within thermoplastic layers 15A, 17A, the object of the latter layer being to protect the foil from corrosion by the contents of the container. The insert 22 may seal the orifice 26 of the headpiece as shown, or may be shaped so as to leave the orifice open (Figs. 3, 4, 6, not shown). In a further embodiment (Fig. 7, not shown), the laminated insert is formed integrally with the laminated body of the container.
Patent GB-1396804-A (GB)
Title: Spiral grooved bearing
IPC: F16C17/10
Filed: 1973-06-21
Abstract: 1396804 Bearings DORNIER SYSTEM GmbH 21 June 1973 [11 Aug 1972] 29497/73 Heading F2A A bearing comprises a rotatable part 1 with a hemispherical bearing surface formed with spiral lubricant grooves 3, and a fixed part with a cup-like recess shaped to receive the hemispherical bearing surface, wherein the spiral grooves 3 terminate in an annular groove 4 surrounding a smooth area 2b with its centre on the axis of rotation.
Patent GB-1237839-A (GB)
Title: Improvements in the production of fluorine-containing polymer films
IPC: H01M8/00
Filed: 1969-06-11
Abstract: 1,237,839. Porous fluorine polymer containing film. ROBERT BOSCH G.m.b.H. 11 June, 1969 [12 June, 1968], No. 29504/69. Heading B5B. [Also in Division C3] A process for the production of a porous, gas permeable and water impermeable fluorinecontaining polymer film in which the pores are not greater than 5Á in diameter which comprises introducing a particulate temperatureresistant separating layer which is temperatureresistant at temperatures up to 400 C. on to a hot plate or mould, spraying thereon a sus ension or solution of a fluorine-containing polymer so as to form a second layer and subsequently sintering the second layer. The separating layer may be temperature resistant up to 400 C., so that it is stable during sintering, and may be formed by spraying an aqueous suspension of zinc oxide, magnesium oxide or graphite on to the hot plate which is at 90 to 120 C. The fluorine-containing polymer may be polytetrafluoroethylene. Its suspension or solution may contain a pore-forming agent, preferably zinc oxide, and/or a component, preferably paraffin wax, to aid rolling and smoothing the second layer prior to sintering. The films may be used in fuel cells.
Patent GB-688945-A (GB)
Title: Improvements relating to measuring apparatus for estimating the number of particles in a suspension
IPC: G01N15/06
Filed: 1950-12-01
Abstract: 688,945. Photo-electric particle counting apparatus. LOESCHCKE, H. H., and WEVER, R. Dec. 1, 1950, No. 29522/50. Addition to 688,653. Class 40 (iii). Measuring apparatus for estimating the number of particles suspended in a transparent or translucent medium comprises means for passing a beam of substantially monochromatic light (of wavelength #) through the medium, and means for estimating the proportion of the total light that is deflected by diffraction or scattering through an angle greater than # where : fm being the average area of the light beam interrupted by the particles. The apparatus takes a similar form to that described in the parent Specification, the light shining on a compensating light-sensitive cell 15 being adjusted by an iris diaphragm 13 controlled by a calibrated adjusting means 21 to be equal to that received by a cell 8 having an annular sensitive area 9c subtending a semi-angle between # as defined above and an angle which should be at least 4# at the cell 4 containing the medium under investigation. In the present embodiment the light passing through the cell 4 is brought to a focus on the mask 9a placed over the centre of the light-sensitive cell 8. A further mask 9b may be used to define the outer edge of the sensitive area or the cell itself may be made the required size. Because only a negligible amount of light is absorbed by the medium and suspended particles it is also possible to estimate the amount of light deflected through an angle greater than # by measuring the light falling on a cell of circular sensitive area subtending, or masked to subtend a semi-angle of # at the medium, Fig. 2 (not shown). The diaphragm control can be calibrated to read directly in numbers of particles as before only in this case the'scale will read in the opposite direction to the first embodiment as the greater the light falling on the light-sensitive cell the smaller the number of particles. In order that the diffraction patterns may be observed a ground glass screen 28 is provided in the side of the light-tight box containing the apparatus. The screen is normally covered by a mirror 29 which may be pivoted about an axis 30 into the position shown in broken lines in Fig. 3 when it is required to observe the patterns. The colour filter 6 may be swung out of the way of handle 18 during this operation. In the case of substantially spherical particles (e.g. blood corpuscles) the expression for the angle # may be re-written dm being the mean diameter of the particles.
Patent GB-623050-A (GB)
Title: Improvements in and relating to gauges
IPC: G01B13/00
Filed: 1946-10-03
Abstract: 623,050. Fluid-pressure gauging apparatus. RUPLEY, F. L. Oct. 3, 1946, No. 29534. [Class 106 (ii)] In fluid-pressure gauging apparatus the gauge head includes a body with a longitudinal passage therein communicating with a gauge port associated with a feeler member mounted on the outside of the body and movable relatively to the port, this feeler being secured to the gauge head by a leaf-spring continuously tending to keep the feeler spaced from the body. The gauge head shown in Fig. 5 comprises a block 54a joined by a conduit 56a to a second block (not shown) by a fluid-tight joint, a bore 64a in the block 54a being screw-threaded to receive an adjustable member 96 having a gauge port 66a therein. A work-feeler button 68a having a flat face disposed opposite the port 66a is peripherally grooved at 78a to receive the forked ends of a flat spring 82a which is secured to the gauge head by a screw 90a passing through an elongated slot in the spring. The spring is shaped at 94a to allow the flat face of the feeler to remain parallel to the face of the member 96 during gauging movements. The forked ends of the spring are recessed to allow them to be sprung apart to receive the button 68a. The port is adjustable relatively to the button, and the elongated slot in the spring allows adjustment of the button relatively to the port, so that the gauge head can be used for different ranges of gauging. In a modification, the port is not adjustable. The feeler button is protected by a number of projections 74a, defining cross-channels, on the end of the block 54a. In the form shown in Fig. 7, particularly for gauging holes or distances between spaced surfaces, there are two oppositely-disposed gauge ports 110, 118, arranged in a single or separate member 112 with passages 113 communicating with the bore 102 in the block 100, each port having a workfeeler button co-operating therewith. Peripheral and longitudinal grooves in the block allow the escape of fluid when the gauge head is used in a bore. A protective cover-plate 126 is secured to the end of the block 100, and the latter is bevelled at 128 to facilitate entry into a bore. In a modification, only one port is arranged at the side of the gauge head, and the latter has a flat face disposed diametrically opposite the port. This gauge head could be clamped on a column for use as a height gauge. In this modified form a screw-threaded plate may be secured to the flat face to receive a post or fixed feeler so that the scope of the gauging- head can be varied.
Patent GB-687356-A (GB)
Title: Improved oil burner
Inventor: WOODROW WALTER AMBROSE
IPC: F23D3/00
Filed: 1949-11-18
Abstract: 687,356. Wick burners. STANDARD OIL DEVELOPMENT CO Oct. 16, 1950 [Nov., 18,1949], No. 29570/49. Class 75(i) In order to prevent seepage of unburnt oil from the top of the wick in an oil burner of the type comprising a tubular wick 1, held between an inner cylinder 2 and an outer cylindrical wick guide 3 there is provided a flange 7 attached to the outer surface of the wick guide 3 and inclined upwardly therefrom towards the inner surface 8 of a surrounding cap or cone, which may consist in a double cap member 6, the gap between the upper end of the flange 7 and the inner surface of the cap being less than 0.1 inch. The flange 7 is preferably inclined to the horizontal at an angle of between 10 and 60 degrees, and the gap between the upper end of the flange 7 and the inner surface of the member 6 is preferably between 0.010 and 0.015 inches. As alternatives the flange 7 may be detachably secured or brazed to the wick guide 3, or the wick guide itself may be splayed outwardly to form the flange 7, and the latter may be saucer shaped and turned up vertically or rolled inwardly at its outer edge.
Patent GB-486426-A (GB)
Title: Improvements relating to casement windows and the like
IPC: E05D3/02
Filed: 1936-10-31
Abstract: 486,426. Hinges. FEAKES, E. P. Oct. 31, 1936, No. 29673. [Class 65 (ii)] [Also in Group X] Hinges for casement windows, doors, and the like of the kind which have rib and groove engagement with the frame are provided with leaves 17 each bent substantially at a rightangle the parts being connected by webs 19 at each side. When the window &c. is offset as shown one leaf of the hinge is made shorter than the other.
Patent GB-470056-A (GB)
Title: Improvements in control means for emptying the working circuits of hydraulic power transmitters
IPC: F16D33/10
Filed: 1936-10-31
Abstract: 470,056. Hydraulic transmission of power. VOITH, W., VOITH, H., and VOITH, H., (trading as VOITH, J. M., [Firm of]). Oct. 31, 1936, No. 29677. Convention date, Nov. 1, 1935. [Class 69 (ii)] A hydraulic power transmitter of the kinetic type comprises outlet ports disposed at the periphery of the working circuit and adapted to discharge working liquid under the influence of centrifugal force, these outlet ports being controlled by valve members actuated by a controlling fluid pressure, the valve members being flat-seating and not constrained by guide members to move in fixed paths. Liquid exhausts from the working circuit a through ports a<1>, b<1>, b2 ; the ports a<1> are preferably provided in the driving part of the transmitter, and are controlled by disc-shaped valve members d situated in the valve chambers b to which liquid is admitted through passages e<1>, e<2>, e from the filling chamber of the transmitter, so as to hold the valves d down on their seats g, h and so close the ports a<1>; the valves open automatically when the supply to the chambers b is discontinued. The valves are preferably flexible, being of thin sheet steel, iron or other metal, and incorrect positioning on their seats is prevented by a ring K. Bleed ports C are provided. The valves are rendered accessible by removable plugs i. In the construction shown, each valve chamber b communicates through a duct e<1> with an annular chamber e<2> extending completely around the transmitter and communicating with the filling chamber through one or more passages e. Alternatively, each valve chamber b may communicate by a separate external pipe with the fining chamber.
Patent GB-1381987-A (GB)
Title: Electrolytic production of aluminium oxide films
IPC: C25D11/16
Filed: 1972-06-26
Abstract: 1381987 Anodizing aluminium foil to form dielectric films SPRAGUE ELECTRIC CO 26 June 1972 [23 July 1971] 29750/72 Heading C7B A dielectric aluminium oxide film is formed on aluminium foil by treating the foil in hot water to form a hydrous aluminium oxide film thereon and thereafter anodizing to convert some of the hydrous aluminium oxide to an aluminium oxide barrier layer whilst leaving some residual hydrous oxide; treating the foil with a stripping solution which attacks the hydrous oxide faster than it attacks the barrier oxide layer, e.g. H 3 PO 4  or H 3 PO 4  plus CrO 3 , so as to remove the residual hydrous oxide; and then subjecting the foil to further anodizing treatment. Anodizing is preferably carried out in a non-borate electrolyte, e.g. ammonium dihydrogen phosphate or sodium benzoate.
Patent GB-210049-A (GB)
Title: Improved method of projecting superposed images
IPC: G03B15/08
Filed: 1923-11-26
Abstract: 210,049. CamÚlÚon Soc. Anon. Jan. 18, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Kinematograph picture films; lantern slides.- For projecting one at a time a number of positives superposed on the same plate or film, each of the positives is coloured differently from the others, the colours being so chosen that by suitable selection of the colour of the projecting light only one of the images is projected, and therefore by changing the colour of the light the images can be projected one at a time. For example, the printing may be effected witih the aid of gelatinous inks of different selected colours. In the case of a photographic plate, the first positive may be toned a particular colour by means of a bath or by tinting, and then covered by a fresh sensitive coating on which the second positive is produced and toned in a different colour and so on. The process may be ,applied to phonographic plates or kinematograph films and the positives may be applied to one side only or to both sides of the plate or film. The projection may be effected either by transmitted or by reflected light.
Patent GB-1331394-A (GB)
Title: Web inspection systems
IPC: G01N21/89
Filed: 1971-06-25
Abstract: 1331394 Detecting web defects photoelectrically EASTMAN KODAK CO 25 June 1971 [29 June 1970] 29813/71 Heading G1A In a web inspection apparatus in which a line of radiation e.g. infrared is directed at a moving web 10 and specularly reflected and transmitted radiation is received by photo-cell arrays 20, 22 respectively, each array comprises a line of mutually insulated photo-cells with pairs of photo-cells in each array connected to respective differential devices each arranged to produce an output representing the difference between its inputs. An output from any differential device (34) actuates a relay (50) operative to produce an alarm and stop the machine, Fig.2 (not shown). Preferably each differential device does not receive the outputs of two adjacent photo-cells, which may be arranged in jig-saw fashion, Figs.5a,b (not shown).