baber/WOPTO huggingface dataset:
Patent GB-495285-A (GB)
Title: Improvements in or relating to motion picture apparatus employing film magazines
IPC: G03B19/18
Filed: 1938-03-11
Abstract: 495,285. Kinematograph apparatus. KODAK, Ltd. March 11, 1938, No. 7689. Convention date, March 11, 1937. [Class 97 (i)] In apparatus for use with a magazine having an exposure aperture or apertures in one of its walls normally covered by a shutter connected with an operable projection extending from the magazine, an actuating device for controlling the projection is mounted within the apparatus and is actuated to uncover the exposure aperture, by the closing movement of the door or cover for the magazine chamber. Fig. 3 shows a front sectional elevation of a camera and film magazine 12 housed in a chamber formed by a mechanism plate 3, a front locating plate 7, and a hinged door 34. The magazine is constructed as described in Specification 494,590, and is reversible, being provided with two exposure apertures 28, 29 covered by a shutter 25 pivoted on a locating stud 21. The shutter is connected by a link 30.to a pin 32 projecting from the magazine, and a spring 36 normally urges the shutter into its closed position; a guard plate 47 carried by the pin 32 covers the slot 33 along which the pin is moved to open the shutter. Movement of the pin is effected by one of two bell-crank levers 43 carried by pivots 44 on the plate 7. One arm 45 of each lever 43 engages the pin 32 and the other has an upturned slotted end 42 extending through a slot in the plate 7. Each upturned end 42 is engaged by one end of a U-shaped spring 38 secured to a bracket 40 on the plate 7. Two pins 46 carried by the door 34 engage the springs 38 as the door is closed, and turn the levers 43 to move the pin 32 and open the shutter. The upper spring 38 and lever 43 become operative, if the magazine is a reversible one, when the magazine is in its second position ; if the magazine is not reversible they may be dispensed with. In a modification, Fig. 4, each lever 43 is moved by a U-shaped spring 61 threaded on a plunger 58 and held between a coil spring 64 and a shoulder 65 on the plunger. The plungers become engaged by the door 34, as shown, as the door is closed, to operate the shutter. The spring 36 closes the magazine shutter as the door 34 is opened, and the springs 38, 61, 64 absorb any overtravel of the pins 46 or plungers 58 during the closing of the door. The plate 7 is provided with holes 54, 55, alternatively engaged by a pin on the magazine in the two positions of the magazine. Specifications 375,053 and 475,794 also are referred to.
Patent GB-546777-A (GB)
Title: Improvements in or relating to electrically operated timing devices
IPC: H01H43/30
Filed: 1941-06-18
Abstract: 546,777. Thermal switches. IGRANIC ELECTRIC CO., Ltd., TAYLOR. J. R., and WRIGHT, S. R. June 18. 1941, No. 7701. [Class 38 (v)] In a timing device wherein closure of a switch 1 is followed after a given time interval by the closure of a circuit 2, closure of the switch 1 completes the circuit to the heater 4 of a thermal element such as a bimetal strip 3 which thereupon bends till it engages a contact 5 completing the circuit to a relay w which closes maintaining contacts c<SP>2</SP> and other contacts c' and opens contacts c<SP>3</SP>. The circuit of the heater 4 is thus broken, the bimetal strip 3 cools and eventually re-engages a contact 6 to complete the circuit 2. The time interval is thus the time during which the bimetal strip heats up and then cools down. The contact 5 may be an eccentrically-mounted disc and the load 2 may be a relay which can operate to close a maintaining circuit for 'itself and can open or close other circuits to control other operations. The arrangement may be used to start or stop a motor after a given time.
Patent GB-101274-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: IMRAY OLIVER
IPC: F02B1/00
Filed: 1916-05-31
Abstract: 101,274. Imray, O. (Werner, L. A.). May 31, 1916. Four - stroke - cycle engines.-The cylinder is divided by a partition 7, Fig. 3, adapted to slide with the piston into two separate combustion chambers 10, 11, which are used alternately, so that the piston receives an impulse at the end of each inward stroke. The partition 7 passes through a stuffing-box 51 in the head of the cylinder into an extension 8 of the water jacket 21 of the cylinder. The stuffing- box is secured to the cylinder head by bolts 19, which serve also to compress the packing 52, 42. Each combustion chamber is provided with an inlet and exhaust valve, the inlet valve chambers 33, 35 and the exhaust valve chambers 34, 36 being separated by webs 16. A gas-tight joint is secured between the partition 7 and the webs 16 by means of strips 13 of compressible material pressed outwards by springs and inserted in slots formed in the edge of the partition 7.
Patent GB-908363-A (GB)
Title: Improvements in or relating to methods of constructing capacitors and capacitors constructed by such methods
IPC: H01G4/32
Filed: 1960-03-04
Abstract: 908,363. Capacitors. SIEMENS & HALSKE A.G. March 4, 1960 [March 4, 1959], No. 7775/60. Class 37. In order to avoid the formation of creases in the conducting or dielectric layers of a wound capacitor during manufacture a lubricant is introduced between these layers. The capacitor may be made from interleaved dielectric and metal foil strips or from dielectric strips coated with conductive material with an interposed lubricating layer. The lubricant may be of liquid or paste form and ethyl alcohol and polyisobutylene are referred to. The dielectric may be polyethyleneterephthalate. After winding, the capacitor is compressed to a parallelopipedical shape and may subsequently be impregnated. Most of the lubricant may be removed after winding.
Patent GB-783995-A (GB)
Title: Variable speed transmissions
IPC: F16H47/02
Filed: 1955-04-04
Abstract: 783,995. Hydromechanical variable-speed gearing. AUSTIN MOTOR CO., Ltd., STUART, D. J. K., and WEAVING, J. H. April 3, 1956 [April 4, 1955], No. 9704/55. Class 80 (2). Hydromechanical variable-speed. gearing between parallel input and output shafts 3, 10 comprises direct and low-speed gear drives 4, 5 and 6, 7 to cylinder blocks 1, 2 with pistons engaging swash-plates 13, 14 of adjustable inclination pivoted on the shaft 10, the cylinders of the two blocks communicating through ports 17 in a disc 16 rigid with the shaft 10. A friction clutch 18 can be engaged, either automatically or at will, to bridge the gear and provide a direct drive between the shafts 3, 10 through a gear pair 19, 20 when the swash-plates are in the direct-drive position shown, that is with plate 13 at maximum inclination and plate 14 at zero inclination.
Patent GB-765675-A (GB)
Title: Improvements in or relating to gyroscopic turn indicator instruments
Inventor: WRIGHT GORDON PERCY
IPC: G01C19/42
Filed: 1953-03-30
Abstract: 765,675. Gyroscopic apparatus. KELVIN & HUGHES, Ltd. March 30, 1954 [March 30, 1953], No. 7921/53. Class 97(3) In a gyroscopic turn indicator, the gunball ring carrying the rotor, is geared through quadrant 14 and pinion 15 to an electromagnetic damping device consisting of a rotatable copper cup 33 and a fixed permanent magnet 30 of high coercivity and without a central aperture and, a soft iron ring 31 surrounds the cup to complete the magnetic circuit. Preferably the magnet is recessed at 40 so that the rim of the cup extends beyond it. The depth of the magnet and the cup may be more than one third of their respective diameters. Jewel bearings 23, 24 support the cup 33 and pinion 15 and one, 23 may be mounted on the magnet 30 by adhesive cement. The magnet may be attached to plate 28 by adhesive cement.
Patent GB-249568-A (GB)
Title: Improvements in pumps for introducing fuel or the like into internal combustion engines
IPC: F02M59/02
Filed: 1926-03-23
Abstract: 249,568. Rundl÷f, E. A. March 23. 1925, [Convention date]. Lever and tappet-actuated pumps; stroke, varying; timing devices. - In a fuel pump for internal-combustion engines &c. of the kind in which the plunger is actuated by a reciprocating member driven by a crank &c., the plunger is actuated only during the middle portion of the stroke of the reciprocating member when it is moving at its greatest speed. The plunger 2 may be actuated through a rocking member 10 which is operated by a finger 12 carried by a slide 15 reciprocated by a crank 18. The finger is pivoted on the slide and is held against a support 21 by a spring 20. The stroke of the plunger 2 may be varied by adjusting the sleeve 16 in which the slide works about an axis 23 by means of a lever 25 operated by hand or governor. The pump 1 is carried by a slide 5 which may be adjusted in a slot 6 to vary the time of injection. In another form, the plunger is actuated directly by a tappet, the end of which is caused to travel in a path inclined to the axis of the plunger by an inclined plate. The stroke may be varied by adjusting the position of the plate.
Patent GB-549715-A (GB)
Title: Improvements in and relating to abrasive grains
IPC: C09K3/14
Filed: 1941-06-26
Abstract: 549,715. Abrasives. NORTON GRINDING WHEEL CO., Ltd. June 26, 1941, No. 8060. Convention date, June 26, 1940. [Class 91] Abrasive grain comprises alumina coated with sodium silicate containing a quantity of cryolite, the coated abrasive having been heated for a prolonged period of about 475‹C., whereby adhesion of the cryolite to the abrasive is effected without fusion. The cryolite may be replaced by other insoluble fluorides, such as calcium fluoride, or apatite. The alumina may comprise the electrically prepared product or a mineral form such as emery or corundum. In one example of the preparation of the product, dense alumina and cryolite, each of specified grit size, are admixed with water and sodium silicate and the mixture charged into cans and heated at 475‹C. for a week. After screening the material is ready for use. In a further example, bentonite is additionally added to the mixture. The preferred proportion of cryolite in these products comprises from ¢ to 1¢ per cent by weight of the coated abrasive. The product may be used for preparing set-up wheels for grinding, and for manufacturing sandpaper or abrasive cloth. Specification 416,730, and U.S.A. Specification 944,436 are referred to.
Patent GB-547936-A (GB)
Title: Improvements in and relating to paper making machines
IPC: D21F3/04
Filed: 1941-06-27
Abstract: 547,936. Wet presses of paper-making 'machines. MILNE,. S. June 27. 1941, No. 8098. [Class 96] In a wet press of a paper-making machine comprising three press rolls 1, 2, 3, Figs. 1 and 2, arranged vertically, the paper web passes through each nip together with a wet felt, but is unaccompanied thereby in its passage about the centre roll 2. One press felt 20 may be used and may be separated from the web 29 between the first and second nips to allow moistureremoval by a suction box 32 or suction roll, or there may be two press felts, one receiving the web 29 and conveying it through the first nip, and the other passing through the second nip and delivering to the rolls 18, the web 29, which may be raised from the felt passing about the top roll 3 in either arrangement. The press is so disposed that there is a minimum lead of unsupported web 29 to and from adjacent parts, i.e. to the smoothing rolls 18 and from the wirecloth 17, so as to minimize breakages and reduce the length of the wet press part of the machine. The lowest roll 1 may have a side suction zone extending both sides of the nip to withdraw expressed moisture, and to clean and dry the felt immediately it leaves the nip. The centre roll may be of granite and the others rubbercovered. Ther may be a doctor 31 to clean the roll 2 and catch any broken paper. The press may be driven as illustrated in Fig. 2, using cone pulleys 34 and gears 33. The rolls 2 and 3 may be variably counterbalanced by weights 9 and 12 and the roll 3 may be raised by gearing 15 and slings 14 ; some or all of the press rolls may be cambered.
Patent GB-125264-A (GB)
Title: Improvements in or relating to Route Indicators for use on Railways, Tramways, Omnibuses, and the like.
Inventor: WEST CHARLES HARPER
IPC: B61D41/00
Filed: 1918-05-15
Abstract: 125,264. West, C. H. May 15, 1918. Reel and web apparatus.-In a route or destination indica. tor for railways, tramways, or omnibuses, of the kind in which an indicating band is carried over rollers, the rollers are mounted on the inside of the lid of the indicator box, and the lid may be readily detached from the box carrying the rollers and band with it. The lid c is held on the box at one end by the screw d<1> and nut e, and at the other end by the spring d. The lid carries brackets h, i, to which are attached the U frame k. The rollers o, p are mounted in the frame, the axles m, n passing through slots at one or both ends of the box. Springs u, v hold the rollers in the adjusted position. A " view-finder " w is provided to enable the attendant to inspect the position of the band q. Lamps may be provided behind the band. When the rollers are mounted inside, a tramcar, the box may be dispensed with. The whole may be enclosed in a cover to prevent the band from being tampered with.
Patent GB-1483014-A (GB)
Title: Resin-coated glass bottles
IPC: C08L5/00
Filed: 1975-02-26
Abstract: 1483014 Resin coated glass bottles SUMITOMO CHEMICAL CO Ltd and HAYASHIBARA BIOCHEMICAL LABORATORIES Inc 26 Feb 1975 [27 Feb 1974] 8124/75 Heading B2E A glass bottle is coated on its exterior surface with pullulan, i.e. a linear high polymer in which units of maltotriose, a trimer of glucose, have repeatedly been bonded through an α-1, 6 linkage. and further coated with an alkali resistant resin, e.g. an epoxy, urethane or ethyl cellulose. An aqueous pullulan solution may be applied to the bottle surface by dipping, brushing or spraying until a layer 100 to 1000Á in thickness is formed. Boric acid or colloidal silica: may be added to the solution and also methanol, ethanol or isopropanol. The alkali resistant resin may be applied in ethanol solution or as a prepolymer. The molecular weight of the pullulan employed is 50000 to 3500000 and the coated bottles may be used to hold carbonated drinks.
Patent GB-195859-A (GB)
Title: Improvements in and relating to centering or false work for concrete floors and the like
IPC: E04G11/46
Filed: 1922-03-21
Abstract: 195,859. Kahn, M. March 21, 1922. Casting floors in situ.-Trough sections for use in moulding floors in situ are supported by means which allow of their removal before the concrete has set, leaving bearers to support the concrete while it dries. The inverted trough sections fare provided with depending flanges g and ledges h which are adapted to rest on runners c supported by clips b from the main bearers a, the flanges g entering spaces between the runners and the bearers. These spaces are maintained by distance-pieces, which may be separate from or integral with the clips, as shown at e, Fig. 1.
Patent GB-598704-A (GB)
Title: Improvements in or relating to welt-wire feed mechanism for straight-bar knitting machines
IPC: D04B11/32
Filed: 1940-10-11
Abstract: 598,704. Knitting-machines. MILLER, M. C. Oct. 11, 1940, No. 8306/47. Convention date, Nov. 12, 1938. Divided out of 598,647. [Class 74 (ii)] Welt wires mounted in a magazine on a straight-bar-machine for knitting welted fabrics are fed successively to a take-up mechanism to permit continuous operation of the machine. The arrangement is described in connection with a straight-bar-machine disclosed in Specification 598,647, and comprises a welt wire magazine 436 mounted on the narrowing machine frame 72 together with a transfer member 398 pivotally mounted on the picot bar 86 and movable from a raised position to a lowered position to transfer a welt wire 404 from the magazine to a position where it will be engaged by hooks 292 on fabric take-up straps 270. At the commencement of knitting, the normal welt hooks 90, operated by levers connected to the main cam-shaft, engage the initial course and withdraw the fabric as it is completed. A wedge - shape member 448, actuated by levers, is inserted above the bottom welt wire and forces the wire past a retaining catch into the transfer member 398 where it is positioned by annular grooves in the ends of the welt wires engaging supports 400 of the transfer member 398. The transfer member is then rotated about the picot rod 84 to a position above the completed fabric. Continuous fabric take-up straps 270 provided with resilient spring portions 296 are positioned at each end of each section of the machine. The straps are provided with grommets 286 which engage spiked pulleys, one pulley 282 being coupled to a shaft 284 rotated by a weight 298 secured to a cord 300 coiled round a drum on the shaft 284. Each strap 270 is provided with a hook 292 which engages the welt wire and withdraws it from the transfer member 398 when retaining latches 408, adapted to hold the straps inoperative, are released by the welt wire during a downward movement of the narrowing frame. The narrowing machine frame is then raised whilst the hooks 292 retain the welt wires. On completion of the welt the welt hooks 90 return the initial course loops to the needles and the fabric take-up is provided by the engagement of the welt wires with the fabric. When the initial course loops are returned to the needles, the fabric take-up tension is eased by a ratchet mechanism relieving the shaft 284, driving the straps, of the weight 298 rotating it. A counterweight through the operation of a clutch, described in Specification 598,647, is pro. vided for repositioning the weight 298 after the completion of the fabric.
Patent GB-593681-A (GB)
Title: Improvements in and relating to electrical discharge devices
IPC: H01J7/18
Filed: 1944-05-02
Abstract: 59 3,681. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). May 2, 1944, No. 8307. Drawings to Specification. [Class 39 (i)] [Also in Group VIII] A discharge device as described in Specification 580,765 has the external surface of the insulating parts coated with a water-repellent chemical such as hydrolysed methyl silicon halide. The coating may cunsist of the heathardened hydrolysis product of a mixture of methyl silanes or the surfaces may be exposed to vapours of an organo silicon halide. The coating materials and the treatment therewith are described in Specifications 572,740, 575,675 and 585,947, [all in Group VIII].
Patent GB-662970-A (GB)
Title: Improvements in or relating to frets for open fireplaces
IPC: F24B1/191
Filed: 1949-03-28
Abstract: 662,970. Fireplace frets. CAUNT, W. T. Jan. 10, 1950 [March 28, 1949], No. 8374/49. Class 126 In a fret for an open fireplace formed from two or more overlapping portions 10, 11 which are relatively slidable for adjusting the length of the fret, the two portions are curved in the direction of their relative ,sliding motion so that the perpendicular distance of the centre of the fret to a line joining its ends increases as the fret is extended. One portion 10 is bent over at the top and bottom to form guides 12 in which the other portion 11 slides. Slots 15 in one portion 10 register with slots 16 in the other portion 11 when the fret is of minimum' length. Each portion 10, 11 is provided with a handle 13. In the extended position; the fret is spaced from the fire to prevent coals &c. from falling beyond it. The portions 10, 11 are curved so that extension and shortening of the fret provide respectively longer and shorter arcs of the same radius. A straight fret may be used in a fireplace having divergent sides. The fret may be formed from a central portion and ; two wings (not shown) which may be interconnected so that movement of one wing relative to the central portion is accompanied by movement of the other wing.
Patent GB-162885-A (GB)
Title: Improvements in or relating to collars for personal wear
IPC: A41B3/02
Filed: 1920-03-22
Abstract: 162,885. Mugford. R. P., and Knott, J. S. March 22, 1920. Collars, linen and like.-A double collar is provided with a tab A secured at one end a, within the fold, to the outer face of the collar band, the other end projecting for some distance beyond the end of the band. When the collar is put on and fastened in the usual manner, the free end of the tab A, which may be provided with a buttonhole to engage a button b within the fold, is inserted in the fold to cover the stud and the superposed ends of the collar band. The tab A may be adapted to receive a stiffener or may be ornamented to serve as an imitation neck-tie.
Patent GB-1027489-A (GB)
Title: Manufacture of double-walled hollow plastics product
IPC: B29C48/09
Filed: 1964-02-28
Abstract: 1,027,489. Blow moulding. KATO SEISAKIYO KABUSHIKI KAISHA. Feb. 28, 1964 [March 4, 1963], No. 8464/64. Heading B5A. [Also in Division A1] In an extrusion-blow moulding apparatus, Fig. 2, an extruder E feeds a die element 1 providing two concentric annular channels for the plastics material which leaves the die in the form of a double tube and is located between mould halves a, a<SP>1</SP>. A core 27 is raised to enter the inner tube and a blow nozzle 30 enters the space between the tubes. The mould sections are moved together and an hydraulically operated knife 45 severs the extrudate. Compressed air is supplied to the nozzle 30 to effect blowing of a double walled hollow article, e.g. a fishing float, a flower pot or a liquid container. The mould halves have coolant circulating channels 51. In a modification the core 27 extends from the extruder die and a vertically movable ring-shaped stripper mechanism is provided. The core need not extend completely through the mould cavity. In another example, the core comprised two opposed parts, the ends of which define an annular cavity for making a tyre.
Patent GB-985642-A (GB)
Title: Improvements in hydrodynamic bearings
IPC: F16C32/06
Filed: 1963-03-04
Abstract: 985,642. Bearings. SOC. RATEAU. March 4, 1963 [Jan. 22, 1963], No. 8466/63. Heading F2A. A fluid bearing has a number of slippers disposed around the bearing axis, at least one of which is radially movable. Loading means is provided for urging the movable slipper towards the bearing axis and means is provided for automatically controlling the value of the load applied to the movable slipper so as to maintain the thickness of a fluid film between the bearing and a shaft, within predetermined limits. In an embodiment, a centrifugal gas compressor has a shaft 1 carrying a rotor 2. Gas is supplied to the compressor through an inlet pipe 3 and compressed gas passes from the compressor through an outlet-pipe 4. The shaft 1 is mounted on fluid bearings 5, 5a, each having three slippers equi-angularly spaced around the shaft. The two lower slippers 6, Fig. 3, are fixed and the upper slipper 7 is radially movable and is urged by a spring 8 towards the bearing axis. Above the slipper 7 of the bearing 5 is disposed a pressure-vessel 9 having upper and lower compartments 15, 17 separated by a flexible diaphragm 10. The central portion of the diaphragm is attached to a rod 11 which is slidable in a guide 13, passes through a fluidtight gland in the vessel 9, and is articulated at 12 to the slipper 7. The upper compartment 15 is connected by a pipe 16 to the outlet-pipe 4 and the lower compartment 17 is connected by a pipe 18 to the inlet pipe 3. The spring 8 is mounted between an adjustable cap 19 and the diaphragm 10, the cap 19 being carried by a member 20. The control system for the bearing 5a is arranged in the same way as that of the bearing 5. In use, as the difference in pressure in the upper and lower compartments 15, 17 of the vessel 9 depend on the speed of the compressor, so the load exerted by the rod 11 on the slipper 7 is controlled and the required thickness of fluid film is maintained between the bearing and the shaft. In another embodiment, a film thickness detector 25, Fig. 4, which may be capacitative or magnetic, has the output thereof fed to a receiver 26 which transfers the output into a voltage proportional to the film thickness. This voltage is used, by means of relays, to control a servomotor 27 which adjusts the pre-loading means 8 to maintain the film thickness within the desired range.