baber/WOPTO huggingface dataset:
Patent GB-680785-A (GB)
Title: Device for determining the time from the stars
IPC: G01C21/02
Filed: 1950-11-06
Abstract: 680,785. Ascertaining time from stars. MILLIGAN, H. B. Nov. 6, 1950. No. 27098/50. Class 139. [Also in Group XIX]. A device for determining the time from the stars comprises a basic dial provided with a circular scale graduated into twenty-four major divisions and a time dial mounted for rotation relative to said basic dial about the centre of said scale, said time dial being provided with a scale including a reference point and a plurality of major divisions arranged on each side of said.reference point upon an arc of a circle concentric with said first-named scale, an indicator being mounted for rotation relative to said dials about the common centre of said scales, and a sight opening at said common centre. The dial 10, Fig. 1, bearing the circular scale 11 graduated in " hours " has an extension 14 bearing an arrow 16 at the " 24 hour" mark on scale 11. A. dial 23 mounted on tube or sleeve, 18 Figs. 1 and 3, fixed to the dial 10 and having a time scale 24 graduated in " hours up to and from a "12 hour mark and index 26 is rotatable relative to the dial 10 but may be clamped thereto by rotation of a knurled nut 33. An indicator 28 having a radial line 30 is, also rotatable on the sleeve 18 but may be locked by rotation of a knurled nut 36. A ring 37 inside the sleeve 18 supports a pair of cross hairs 38. The indicator 28 embraces the sleeve 18 by a slot 29, Fig. 1,' so that it may be pushed radially inwards to be wholly within the dial 10. In use the star Polaris is sighted through the sleeve 18 by the cross hairs 38 with the arrow 16 pointing as nearly south as possible. The indicator 28 is then moved to point to a chosen star and the position of the line 30 on the scale 11 is read. The dial 23 is then rotated until that graduation on the scale 24 which corresponds to standard time as ascertained from a a timepiece is aligned with the line 30. The dials 10, 23 are then locked by rotating the nuts 33, 36. In this datum position the index 26 on the dial 23 points in the direction''of the position of the chosen star at midnight if Polaris is sighted through the sleeve 18 in the above way, so that if the indicator 28 is at any time moved to point to the' chosen star, with the device held in the above described manner, the reading of the line 30 on the scale 24 indicates standard time. The dial 23 may be adjusted at the end of each third day by reference to an additional scale 40 on the dial 10.
Patent GB-1315366-A (GB)
Title: Devices for the accurate measurement of the specific fuel consumption of internal combustion engines
IPC: G01F9/00
Filed: 1970-06-05
Abstract: 1315366 Locating conductors AUTOMOBILES M BERLIET 5 June 1970 [6 June 1969 11 Feb 1970] 27274/70 Addition to 1170990 Heading G1N The pointer of a meter carries a metal plate 11 (Fig. 2) which, for one reading of the meter, is located in the gap 37 between two coils 34, 35 forming part of the tuned circuit of an oscillator 33 (Fig. 1), whose output is fed through a quartz crystal filter 50 and rectified at 80 to produce an output signal s at the specific reading of the meter. In another embodiment Fig. 6, (not shown) the output from oscillator 33 is mixed with a fixed frequency and fed through an active filter comprising a double T bridge.
Patent GB-941420-A (GB)
Title: Improvements in surgical saws
IPC: B27B19/00
Filed: 1962-07-16
Abstract: 941,420. Surgical saws. HOWE SOUND CO. July 16, 1962 [July 17, 1961], No. 27277/62. Heading A5R. An oscillatory plaster or bone saw comprises a casing with a swivel head 14 carrying a saw blade 55 and means within the casing and the swivel head for oscillating the blade in a plane perpendicular to the plane in which the swivel head turns in every position of the swivel head. The saw comprises a housing 12 in which a driveshaft 16 is mounted in ball bearings 17, 18, the shaft being rotated either through a flexible drive connected to the casing or a motor mounted on the casing. An eccentrically arranged cam 21 rotates with the drive shaft and oscillates a cam follower 25 and a second shaft 30 fixed thereto about an axis perpendicular to the drive-shaft. The second shaft is supported in a bearing 32 in the housing and a bearing 33 in a swivel head 14 which is rotatable on the housing in a plane at right-angles to the second shaft 30. The saw blade 55 may be circular and have teeth 56 on only a portion thereof. The blade is carried by a shaft 46 which is supported in bearings 47, 48 in the swivel head and extends at right-angles to the second shaft. Oscillations of the second shaft are transmitted to the blade-supporting shaft 46 by bevel gears 42, 44. The swivel head may be secured against rotation by a manually operable lock 36.
Patent GB-583787-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S1/02
Filed: 1939-10-05
Abstract: 583,787. Radio navigation. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and FALLOON, S. W. H. W. Oct. 5, 1939, No. 27307. [Class 40 (v)] In a " blind landing " system, a series of shortwave transmitters and receivers A, Figs. 1 and 2, are arranged along the line of approach, the transmitters being keyed by current.pulses of less than one-tenth of a millisecond from a common control point (not shown). A part of each outgoing keying impulse is reflected at the end of the feed-line (all of which are of equal length) back to the control point. Another part of each pulse is radiated and the signal is returned, after reflection from the distant aeroplane, to the local receiver and from there over the feeder back to the control point, so that the time-interval between the two returned signals gives a measure of the craft's altitude. Similar reflected impulses from an additional transmitter and receiver unit B are used to give an indication of the horizontal distance of the craft from the landing point. The actual time-intervals are first multiplied by a large factor and are then transmitted back to the pilot of the oncoming aeroplane so that, for example, one milli-second represents 10 ft. altitude and the same period 1000 ft. horizontal distance. The magnified time-spacing is derived from a double-beam cathode-ray tube, the two beams being operated at different scanning-speeds. Or it may be effected in the manner described in Specification 577,068. For altitudes of less than 75 ft. ultra-sonic instead of radio transmitters and receivers are used. The required information is conveyed to the pilot by switching a " reversed cardioid " beam of known type in four successive periods, each of which, as shown in Fig. 3, is modulated by different impulses representing the distance and altitude reflected impulses previously referred to. These are separated on the aeroplane by tone filters in the grid circuit of a detector valve (Fig. 4, not shown), and are fed to the deflecting electrodes of the cathode-ray indicator, so as to show when the craft is offcourse to right or left. Simultaneously, as shown in Fig. 6, the line of the time-base is broken by two peaks, one of which gives the altitude and the other the horizontal distance of the craft from the landing point.
Patent GB-735413-A (GB)
Title: Improvements in davits
IPC: B63B23/04
Filed: 1953-10-05
Abstract: 735,413. Davits, boat lowering gear. HANSEN, K. E. T. H. Oct. 5, 1953 [Oct. 10, 1952], No. 27326/53. Class 115. In a davit comprising a suspension member b from which a boat m may be hung and a fallf connected to the suspension member and adapted to be connected to a winch, means are provided for effecting a pull on the fall so as to shorten its effective length when the suspension member is unloaded. The davit has arms e, one end being pivoted on a shaft k and the other carrying a lever d with a fast tackle block c. Said means comprises a winding drum h (Fig. 2) mounted coaxially with the block c. The fall f is led through the block c, around a tackle block a which carries the suspension member b, and up to the winding drum to which it is fastened. When the boat m is lowered the drum h is turned by the fall f being wholly or partly unwound therefrom, thus tightening a spiral spring g in the drum. When the load on the member b is released the spring g will cause the drum h to turn in the opposite direction thereby rewinding part of the fall f and raising the member b from Pos. I (Fig. 1) to Pos. II, where it will be above the heads of persons standing in the boat.
Patent GB-727408-A (GB)
Title: Improvements in and relating to sewage apparatus
IPC: E03F5/02
Filed: 1951-11-21
Abstract: 727,408. Treating sewage. GABRIEL, R. P. Feb. 20, 1953 [Nov. 21, 1951], No. 27333/51. Class 111. [Also in Group XXVIII] The apparatus comprises a sewage collecting pit 1, an inlet 5 fed, for example, by drains 4, and adapted to be closed. in the absence of incoming sewage by a flap valve 6, an inlet 9 for gas such as air under pressure and a discharge pipe 7 through which sewage is expelled on application of the gas pressure. The pit is preferably below ground level and lined with liquid-impervious concrete 2.. The inlet 5, valve 6, discharge pipe 7 and gas inlet 9 are all mounted, as shown on a member 3 constituting a closure cover for the chamber 11. Besides being biased to closing position the flap valve 6 automatically closes when gas under pressure is supplied to the chamber. An overflow or auxiliary outlet may be provided to drain off liquid, after settling, together with means for closing it when solid sewage is being discharged from the chamber. The exhaust side of the vacuum pump of a milking machine may be used as the source of compressed air.
Patent GB-1461298-A (GB)
Title: Smokeless room heating appliance
IPC: F23L1/02
Filed: 1974-06-20
Abstract: 1461298 Solid fuel stoves FUEL RESEARCH INSTITUTE OF SOUTH AFRICA 20 June 1974 [25 June 1973] 27458/74 Heading F4W A solid fuel heating appliance has a grate 4 and aperture 8 for the supply of primary and secondary air. The primary air 13 is controlled by the slots in the baffle 16 and secondary air by the gap 15. The openings for the access of primary air and the openings for the access of secondary air have cross-sectional areas in a ratio between 1 to 4 and 1 to 1 respectively. A turbulent combustion zone is formed by a slot shaped throat 21 that leads to the stack 3. A front hood is fitted comprising a door 18 hinged at 19 and fitted with a transparent window. A heat exchanger (not shown), supplied with cold air from the inlet 22 may be fitted above the throat 21 with heated air emerging through the grill 25.
Patent GB-463664-A (GB)
Title: Improvements in or relating to spotlamps or floodlamps
IPC: G03B15/02
Filed: 1935-10-04
Abstract: 463,664. Spot and flood lamps ; mounting reflectors and electric lamps. RICHARDSON, E. C. Oct. 4, 1935, No. 27497. [Classes 75 (ii) and 75 (iv,)] In a spot lamp or flood lamp with a lens 19 at one end and a door 55 at the other, the light source 20 and reflector 47 are so mounted that they may be moved rigidly together longitudinally of the casing, and the reflector is hinged to allow direct access to the light source when the door is open. The lamp support 21 slides on a pair of rods 25 under the action of a threaded rod 28, and is connected by a rod 34 to the reflector support 35, which also slides on the rods 25. The reflector 47 is held by a spring 48 in a frame 44, which is pivoted to a member 42 carried by the support 35, so that the mirror 47 can be pivoted rearwardly. Rearward movement of the mirror is limited by the abutment of the lug 52 on the frame 44 against a lug 53 on the member 42. The latter also has a lug 50 and adjusting screw 51 against which the lug 52 abuts to ensure that the reflector returns to the correct position relative to the light source. By loosening a screw 39, the parts 35, 42 may be adjusted to focus the mirror relative to the light source. Baffle members 9, 15 are provided in upper and lower chambers of the lamp casing to prevent emission of light through openings in those chambers. A switch is provided in a separate chamber at the bottom of the lamp. The filament 20 of the electric lamp bulb 17 may be in the form of a grid, and the mirror 47, which is spherical, may be adjusted so that an image of the coils of the filament is formed in the spaces between the coils themselves. The door 55 may have a baffle 57 and ventilation openings 56a.
Patent GB-444696-A (GB)
Title: Improvements in drill bits for drilling oil wells
IPC: E21B10/22
Filed: 1934-09-25
Abstract: 444,696. Well-drilling bits. ZUBLIN, J. A., 2369, East 51st Street, Los Angeles, U.S.A. Sept. 25, 1934, No. 27511. [Class 85] In a drill bit for drilling oil wells having a cutter rotatably mounted on an inclined bearing member on a vertical shank secured to the drill pipe, the bearing member has a cylindrical portion of substantially uniform diameter to take part of the radial thrusts, and a conical portion beyond the cylindrical portion to take axial thrust and the rest of the radial thrusts and arranged so as continuously to centre the cutter on the bearing even when the latter becomes worn. As shown, the shank 11 has an inclined cylindrical bearing member 15 in which is threaded a pin 22 with a conical bearing surface 24, the rotary cutter 18 having a corresponding internal form. A streamlined water passage 30 in the shank communicates with a passage 31 passing axially through the bearing member and communicating through diametrically opposed branch passages 34, 36, with an annular groove 38 round the bearing member for lubrication ; a further branch passage 40 leads, direct to the cutter blades. The cutter is held on the bearing member by balls 48 in registering grooves 46, 47 and preferably of a diameter less than the combined depth of said grooves so as not to act as bearings. The balls 48 are inserted through a recess 52 in the shank which is then filled by a plug 53 curved outwardly to conform with the curvature of the bearing member, and secured by a countersunk screw 55 accessible only through a notch 56 in the cutter; the plug 53 is locked by a screw 57 threaded into the shank. The plug 53 is placed on the trailing side of the shank and at least 90‹ from the point of greatest bearing pressure. The angle of the conical bearing surface 24 is such that at all points the sides slope downwardly and inwardly and is preferably of 90‹. Specifications 444,712 and 444,713 are referred to.
Patent GB-713353-A (GB)
Title: Improvements relating to screw conveyors
IPC: B29C48/445
Filed: 1951-11-23
Abstract: 713,353. Meshing-screw pumps; screw pumps. FARBENFABRIKEN BAYER. Nov. 23, 1951 [Dec. 9, 1950], No. 27573/51. Classes 110(1) and 110(2) [Also in Group XXX] Screw conveyers suitable for continuously milling, kneading and mixing, homogenizing, dosing and separating solid and liquid materials comprises one or more multiple threaded worms closely confined by a casing 10 and having parts 1, Fig. 1, for conveying towards the outlet 4 and parts 2 of opposite hand for exerting a braking action. The substance conveyed is first acted on by a part 1. In a modification. Figs. 4, 5, the parts 5, 6 of opposite hand are formed on the external and internal surfaces of a hollow cylinder. This cylinder contains a tubular casing 11 which surrounds a worm 8. Apertures 12. 13 are provided for the passage of material from one worm to the next.
Patent GB-185663-A (GB)
Title: Improvements in lid supports for cabinets
IPC: E05C17/20
Filed: 1921-10-18
Abstract: 185,663. Buckle, H. L. T., and Gramophone Co., Ltd. Oct. 18, 1921. Stays.-The hinged lids of cabinets or boxes, such as those for gramophones, are supported in the raised or adjusted position by a stay 5 which is formed of a decreasing width towards its lower depending end and is arranged to engage between a pair'of rollers 9, 12, of which the roller 12 is pressed against the stay by a coil spring 17. As applied to a gramophone cabinet, the trough 18 containing the rollers is secured to the usual motor board, and its lower side 8 is slotted to guide the stay-bar. The roller 12 is mounted in a movable frame 11, against one end of which the spring 17 engages, and a notch 24 may be provided at the lower free end of stay-bar for engagement with the roller 12 when the lid is in the raised positions. The widened upper end of the stay causes the opening movement of the lid to be assisted by the spring 17, and the movement of the lid to be checked as it reaches the closed position.
Patent GB-916087-A (GB)
Title: Improvements relating to the production of ion-selective membranes
Inventor: KRESSMAN THEODORE ROGER ERNEST
IPC: C08J5/22
Filed: 1960-08-10
Abstract: Ion-selective membranes are produced by the evaporation of water from an aqueous emulsion of a mixture of a thermoplastic polymer and a polymer into which ion-selective groups can be introduced, followed by the introduction of ion-selective groups into the membrane obtained.  Specified thermoplastic polymers are copolymers of butadiene with acrylonitrile or methyl methacrylate, copolymers of vinylidine chloride with acrylonitrile, acrylic ester or vinyl chloride, chlorosulphonated polyethylene, and polyvinyl chloride with/without chlorinated polyethylene.  The polymers into which ion-selective groups may be introduced are polystyrene, polyacenaphthylene, poly(methystyrene), poly(chlorostyrene), poly(styrene-butadiene), poly(styrene-acrylic ester) and poly(butadiene-acrylonitrile).  Optional components of the membranes are low M.W. polyethylene; thickening agents such as caseinates, methyl cellulose, carboxymethyl cellulose, alginates and polyacrylates; and reinforcements, in particular glass cloth. In the examples cation-selective groups are introduced by sulphonation and subsequent neutralization with sodium hydroxide, and anion-selective groups are introduced by chloromethylation followed by amination.
Patent GB-865564-A (GB)
Title: Manufacture of phonograph records
IPC: B29C43/02
Filed: 1957-09-03
Abstract: 865,564. Moulding gramophone records. COOK, E. G. Sept. 3, 1957 [Feb. 7, 1957], No. 27790/57. Class 87(2). Disc-shaped gramophone records are manufactured by pressing powdered synthetic resin material within a matrix at a low pressure and at a temperature sufficient to soften the material and expel volatile components therefrom, and then substantially increasing the pressure while maintaining the temperature to fuse the material into the required shape. The operation is preferably performed in a book form mould comprising plates 11, 12, Fig. 6, connected by a hinge 29 and carrying grooved die plates 13, 14 having raised circumferential rings 31, 32 for moulding the edge of the record. The plates 11, 12 are of sheet magnesium alloy of low specific heat. The hinge 29 is formed at the ends of plate portions 51, 53 which extend well outside the rings 31, 32, so that the plates 11, 12 are enabled to be maintained parallel whilst being closed together during the pressing operation. Holes 55 are provided through the porttions 51, 53 to reduce heat loss through the hinge. Powdered moulding material is applied to the die plate 13 by means of a hopper 16, Fig. 9, vibrated by an oscillating piston 58 and supported with its perforated bottom 44 spaced from the die plate 13 by an adjustable screwed ring 49. A record label 52 is held against the die plate 13 during the loading operation by a rubber gasket 54. Alternatively a sponge rubber pad may be used, the centre portion of the record being then filled by hand. The moulding material may consist of polyvinyl chloride or a vinyl chloride-vinyl acetate copolymer. If desired a less expensive material may be supplied through an inner compartment 70 of the hopper 16 for the central portion of the record. In an alternative construction the bottom of the hopper is constituted by a wire mesh screen. The charged book mould is placed between the electrically heated platens of a press, and heated at a temperature of 280‹ to 450‹F. at 30 lbs. per square inch pressure for up to half a minute. The pressure is then increased to 175 to 300 lbs. per square inch for 5 to 10 seconds and the mould transferred from the hot press to a water cooled press to cool it before removing the record.
Patent GB-535698-A (GB)
Title: Mechanism or apparatus for producing a step-by-step motion
IPC: F16H27/00
Filed: 1939-10-13
Abstract: 535,698. Drawing-apparatus; step-by-step mechanism. EVANS, W. J. Oct. 13, 1939, No. 27809. [Class 97 (iii)] [Also in Group XXIV] A mechanism for producing a step-by-step motion (for example for traversing a straightedge over a drawing board) comprises a screw 10 driven intermittently under the operator's control by a motor 11 so as to advance a half-nut 12 thereon, a spring 15 for returning the nut after each advance, a clutch 22 for connecting the half-nut to an axially-movable rod 14 (which moves the straight-edge) and control means whereby, after a pre-determined traverse of the axiallymovable rod, the nut and rod are liberated in order to allow the nut to be returned by its spring in readiness for a further step-like advance. In use, the operator closes a starting switch, thereby causing a solenoid 30 (operating through connections 41, 42, 20) to raise a shaft 18 and cause the clutch 22 to grip the axially-movable rod 14, at the same time placing the half-nut 12 in engagement with the screw 10 and starting-up or coupling-up the motor 11. The half-nut is thus advanced along the screw carrying with it the rod 14. At the end of the traverse a limit contact 33<SP>11</SP> on the half-nut engages a limit contact stop 33 and re-arranges the circuit causing disconnection of the half-nut 12 and the clutch 22 to permit the half-nut to be returned by its spring 15, the parts then being in position for a further step when the operator again closes the starting switch. The stop 33 is adjustable by a micrometer mechanism 34 to vary the extent of the traverse. The return movement of the half-nut is arrested by contact with one of three stops 32a, 32b, 32c any one of which may be brought into operative position by rotation of a knob 37. The stops are of different lengths to provide for different extents of traverse of the nut. Specification 485,146 is referred to.
Patent GB-480375-A (GB)
Title: Improvements in stoves or heating appliances for placing beneath bodies to be heated
IPC: B60H1/00
Filed: 1936-10-14
Abstract: 480,375. Handles for stoves. HILL, S. D. Oct. 14; 1936, No. 27849. [Class 126] A fuel-burning or electric stove 1 is provided with an elongated or collapsable handle 6 by means of which it may be manipulated under the engine sump or other part of a motor driven vehicle. The handle may be a lazy tongs with terminal arms 4, 5 pivoted to a bracket 2 fixed to the stove. One or more pivots of the tongs may slide in a guide attached to the stove. The stove may be fitted with castors.