baber/WOPTO huggingface dataset:
Patent GB-788360-A (GB)
Title: An aircraft jet propulsion system and a discharge nozzle for the propulsive jet stream
Inventor: PHILPOT PETER DEBURIATTE
IPC: F02K1/15
Filed: 1954-11-26
Abstract: 788,360. Jet propulsion plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Nov. 17, 1955 [Nov. 26, 1954], No. 34424/54. Class 110 (3). A discharge nozzle for a propulsive jet comprises a number of wall elements of concave inward arcuate transverse cross-section and convex inwardly curved longitudinal cross-section, each pivotable about an axis extending chordwise of its transverse cross-section in the region of the nozzle outlet end, and means for pivoting the elements simultaneously outwardly, to vary the nozzle configuration, from an inner position in which they define a convergent-divergent nozzle. The discharge nozzle of a ram-jet aircraft comprises four quadrantal wall elements 13, 14, Figs. 2 and 3, each pivoted near its downstream end about a chordal axis by means of a pair of trunnions 15, Fig. 4, extending into bushes 16 on the casing 8. Sealing medium 18, such as heat-resisting metallic cloth, carried in channels 17 at both edges of each element 13, engages sealing walls 19 attached to both edges of each element 14. Alternatively, each element may carry sealing means 17, 18 on one edge and wall 19 on the other edge. Sealing medium 26, carried by a channel 27, extends circumferentially between each pair of trunnions 15. Reinforcing webs 20, 21 are provided. Hydraulic jacks 22 can pivot the elements 13, 14 from the extreme inner position shown, in which outwardly curved upstream portions 23 form the convergent entry part of a convergentdivergent configuration, to an extreme outer position in which the effective configuration is slightly divergent. The jacks 22 are actuated through a servomotor in accordance with the aircraft Mach number or the pressure ratio across the nozzle, to move the elements 13, 14 towards the inner position on increase of the controlling factor. Cooling air, bled from the engine intake, issues through an annular orifice 24 into the nozzle. In the inner position of the elements 13, 14, the peripheral clearance 25 between the portions 23 and the orifice 24 is small and serves to restrict the supply of cooling air.
Patent GB-960602-A (GB)
Title: Freeze drying apparatus
IPC: F26B5/04
Filed: 1960-10-07
Abstract: 960,602. Vacuum drying. LEYBOLD-ANLAGEN HOLDING A.G. Oct. 7, 1960 [Oct. 7, 1959], No. 34532/60. Heading F4G. Apparatus for continuously vacuum drying material in a freeze drying process comprises serially connected compartments 2 . . . 5, Fig. 1, maintained under different degrees of temperature and pressure by condensers 10, 21, 22, 23 and vacuum pumps 11, 27, 28, 29 through which the frozen material is carried in vessels 14, Fig. 2, from conveyer elements 13 for passage between parallel heating elements 12, so that in operation inside each chamber the vessels and heating elements form a plurality of alternate layers in a multi-layer system. The compartments are of unitary construction as are the conveyer elements 13, of which each has rollers 15 rotatably mounted on a U-shaped member 17 which runs on a guide rail 16 extending through all the compartments. The conveyer elements may be timed to allow periods of dwell in the compartments which are sealed from each other and may be brought into contact with and rest on the heating elements. In a modification the vessels 14, Fig. 7, pass by gravity down an inclined helical floor of the vacuum drying chamber, in which floor heating elements are inserted and a layer of heat transmitting medium, e.g. animal oil, is applied to the floor.
Patent GB-415301-A (GB)
Title: Improvements in and relating to centrifuges
IPC: D01D7/02
Filed: 1933-12-08
Abstract: 415,301. Centrifugal spinning-pots for artificial silk. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Richardson, H. M. ; 3, Weston Road, Marblehead, Massachusetts, U.S.A.) Dec. 8, 1933, No. 34619. Convention date, Dec. 14, 1932. [Class 120 (ii).] A rayon spinning bucket or centrifuge 1, which may be of textile fibres united by a phenolic condensation product and reinforced by wires 2, has its upper end formed of substantially uniform thickness and is provided with a cover having a bottom 4 which may be apertured at 5, a side wall 6, fitting the interior of the bucket and held preferably by a bead '8 fitting a shallow groove 3, a flange 7, which seats on the top of the bucket to limit the inward movement of the cover, and slots 9 spaced around the flange 7 and sidewall 6 to lend flexibility thereto and to provide passages for the escape of acid.
Patent GB-1527426-A (GB)
Title: Driving assurance system for wheeled vehicles
IPC: G08B21/18
Filed: 1976-08-20
Abstract: 1527426 Motor vehicle safety apparatus NISSAN MOTOR CO Ltd 20 Aug 1976 [20 Aug 1975 3 Sept 1975] 34762/76 Heading B7H In a driving assurance system wherein an electrical pulse is generated for each angular movement, such as 2 degrees, of the steering wheel, a monostable vibrator 8 generates an output pulse having an interval representative of the number of continuous steering movements per unit time, there being a comparator 13 for producing a warning signal when the number of continuous s-teering movements per unit time falls below a reference value, e.g. when the driver falls asleep.
Patent GB-1067456-A (GB)
Title: Knotting device
IPC: G01B11/10
Filed: 1963-09-03
Abstract: 1,067,456. Knotting. W. REINERS. Sept. 3, 1963 [Sept. 7, 1962; Jan. 25, 1963], No. 34766/ 63. Heading D1C. [Also in Division G1] A thread knotting device for producing a fisherman's knot has means to monitor the correct position of thread ends to be tied by ascertaining the number of thread ends inserted into the knotting device by measuring the thread dimensions. In one embodiment (Fig. 5, not shown) the monitoring device comprises two condensers in a bridge circuit and one thread end is located between the plates of each condenser, the birdge being unbalanced if one thread end is missing or if two are present between the plates of one condenser. In a second embodiment (Fig. 7, not shown) light from a single bulb is shone with equal intensity in two directions perpendicular to the thread axis and is received by two photocells. If one thread is present the cut-off of light is the same in both directions and the bridge is balanced but if two threads are present uneven cut-off results with corresponding unbalance of the bridge. In a modification Fig. 8 a double thread F, F 2  is measured by the use of three photo-cells 31, 32 and 37 which are connected to produce two bridge circuits. A voltage drop is produced on the resistance 40 corresponding to the diameter of the narrow side of the two threads and a voltage drop is produced on the resistance 42 corresponding to the difference in diameter of the wide and narrow sides. The voltage on resistance 40 is amplified and passed via a resistance 44 to an amplifier 45. The voltage on resistance 42 is also passed to the amplifier 45. When the voltage on the resistance 42 exceeds the threshold voltage of the amplifier 45 delivered by the amplifier 43 the thread cutter magnet 20 is energised. To prevent crossing point and prevents the occurance of double thread can be drawn over a straight edge by a conical roller which eliminates the crossing point and prevents the occurance of others (Figs. 9 and 10 not shown).
Patent GB-361114-A (GB)
Title: Picture frames
IPC: A47G1/06
Filed: 1930-11-19
Abstract: 361,114. Picture frames. REIMERS, H., Osterrade, near Albersdorf, Holst, Germany. Nov. 19, 1930, No. 34872. [Class 11.] A picture frame in which the picture can be readily changed is formed with a backing b, rigidly fixed in grooves in three of the side-pieces a, while a second groove accommodates the glass c ; the fourth side-piece d is attached to a slide e, carrying the picture f, adapted to slide between the glass and backing. Grooves g, h in the edge d may be provided to engage the glass and backing to form a dust-tight frame, and strips of cardboard may be attached to the slide e, forming a number of' panels' in which various pictures may be placed. Alternative modes of support may be provided by fixing eyelets in the back wall b and in one of the side mouldings a.
Patent GB-603345-A (GB)
Title: A new or improved indicator for variable information
IPC: B42F17/08
Filed: 1945-12-28
Abstract: 603,345. Indicating variable information. WALKER, F., and BAXENDALE, R. G. Dec. 28, 1945, No. 35021. Drawings to Specification. [Class 118 (i)] An indicator comprises a panel sub-divided into a plurality of rows of individual compartments in each of which a card may be placed and each of which has adjacent thereto a time scale and a co-operating pointer on a guide. A wireless programme indicator for mounting on a receiver or inside a radiogram lid has columns of compartments for each day of the week, each of the traverse rows corresponding to a particular broadcasting station. The compartments are cut away so that cards, inserted to show which programme it is desired to hear from a particular station on a particular day, can be seen. A time scale is provided above each compartment and a pointer can be slid along a rod to mark the time of the broadcast. The panel may comprise two sheets of material secured together, the compartments comprising pockets between the sheets and being pressed forward and open at the top. It is stated in the Provisional Specification that the time scale may be marked on the inserted card itself.
Patent GB-430033-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D9/02
Filed: 1933-12-13
Abstract: 430,033. Gentrifugal pumps. HALL, S. Z., 76, Victoria Street, London. Dec. 13, 1933, No. 35040. [Class 110 (i)] A centrifugal pump is primed by a plunger pump which draws out the air through holes C in the impeller provided within the inner extremities of the blades b. Between the centrifugal pump and the plunger pump is a float valve e. The plunger pump suction valve comprises a small aperture uncovered by the plunger. The plunger is actuated by an eccentric k on the pump shaft.
Patent GB-910802-A (GB)
Title: Transistor-controlled speed-regulating systems for series commutator motors
IPC: H02P25/14
Filed: 1960-10-31
Abstract: 910,802. Control of D.C. motors. FAIRWEATHER, H. G. C. (Singer Manufacturing Co.). Oct. 13, 1960, No. 35058/60. Class 38 (3). [Also in Group XXXV] In a series commutator motor control circuit employing a junction transistor 13, excess voltage between the collector 15 and emitter 16 of the transistor is prevented by a resistor 17 connected across them and in series with the motor field 19 and its armature 18. The motor speed is determined by the voltage applied to the transistor base 14 from a potentiometer 11; the phasing of this voltage (which is half wave rectified at 24) is corrected by a capacitor 12 across a resistor 10. Voltage peaks due to sparking are limited by a resistor 26. The value of resistor 17 is such that the motor will not run when the transistor is cut off. A fusible, resistor 21 protects the motor circuit.
Patent GB-330869-A (GB)
Title: Improved safety razor
IPC: B26B21/20
Filed: 1929-11-16
Abstract: 330,869. Kellar, J. D. B. Nov. 16, 1929. Razors, safety. In a safety razor of the clamping blade type which may be used for shaving under the arm-pits, the blade C is made with combined straight and semicircular cutting edges A. The guards and clamping plate are of corresponding shape, the uesual aligning and clamping pins being provided. A safety razor of known type having a circular blade and a concave clamping plate is also shown and described.
Patent GB-845201-A (GB)
Title: Improvements in or relating to valves for regulating the flow of liquids and vapours
IPC: F16T1/16
Filed: 1956-11-16
Abstract: 845,201. Steam traps. GERDTS, W. F., and GERDTS, H. R., [trading as GERDTS KOMM.-GES., G. F.]. Nov. 16, 1956 [Nov. 16, 1955; June 5, 1956], No. 35100/56. Class 64(2) Liquid entering a cylindrical body 13 of a steam trap through a radial inlet bore, Fig. 2 (not shown), passes to a central bore with a top aperture 14 from which it flows beneath a loose plate 19 to apertures 16, one on each side of the aperture 14, and down the bores beneath these apertures to a common radial outlet bore (not shown). The under surface of the plate 19 has a recess 26 above the inlet aperture 14 and its top surface need not be flat. Annular lands 20, 21 surrounding the inlet and outlet apertures 14, 16 form, with the adjacent under surface of the plate 19, throttling gaps which prevent the passing of steam. There may be several inlet and outlet apertures and there are bores 25 through the plate 19. Leakage paths are provided at the inlet and outlet apertures by grooves in the lands or in the surface of the plate 19 and by bores, through the plate, over the inlet or outlet. Various combinations of these bores and straight or curved grooves in the annular lands, radiating from the apertures 14, 16, and corresponding grooves in the undersurface of the plate 19, are described. Adjustable stops 29 prevent the plate 19 closing completely on the lands. A manually or temperature controlled valve 31 regulates a by-pass bore 30 from the chamber containing the plate 19, either to the outlet bore or directly to the exterior, so that the by-pass is closed at steam temperature but open at room temperature for rapid release of fluid and variation of the water outlet temperature.
Patent GB-859252-A (GB)
Title: Aqueous dispersions of butyl rubbers and methods of producing the same
IPC: C08J3/05
Filed: 1959-10-16
Abstract: A rubbery copolymer of isobutylene and isoprene is masticated while incorporating therein water, powdered casein and an alkaline agent in a quantity sufficient to convert the casein to alkaline caseinate, and the paste obtained is then diluted with water to give an aqueous dispersion of the copolymer.  Alkaline agents specified are sodium and potassium carbonates and borates and aqueous ammonia.  Optional ingredients are natural and artificial resins, e.g. colophony, and phenol as stabilizer.  The dispersions may be mixed with vegetable glues.ALSO:A vegetable glue, e.g. of gluten, maize, or starch, comprises at least 10% of an aqueous dispersoin of a rubbery copolymer of siobutylene and isoprene, the dispersion having been prepared by masticating the rubber while incorporating water, powdered casein and an alkaline agent and then adding further water to the paste obtained.
Patent GB-352144-A (GB)
Abstract: 352,144. Actuation of switches. CHINNERY, F. L., Griffin Lane, Tamworth, New South Wales, Australia. May 5, 1930, No. 13776. [Class 38 (v).] A switch for breaking the ignition circuit of an internalcombustion engine on the failure of the lubricating oil pressure, comprises a housing 1 screwed to a base 2 which has a chamber 3 in communication with the oil pressure system. A flexible diaphragm 12 prevents oil from passing into the housing 1. When the engine is started, the oil pressure builds up and forces up the diaphragm 12 thus moving the plunger 5 and stem 6 against the action of a spring 11 to close the contacts 16, 18 in the ignition circuit. The plunger 5 fits tightly in the housing 1 and a valve 10 is provided on the stem 6 so that if the diaphragm breaks the oil does not pass into the housing 1.
Patent GB-1172469-A (GB)
Title: Flexible Gland Coupling
IPC: F16D3/74
Filed: 1968-07-24
Abstract: 1,172,469. Universal joints. FALK CORP. 24 July, 1968 [15 Aug., 1967], No. 35238/68. Heading F2U. In a universal joint comprising an annular U-shaped cross-section nylon card reinforced rubber element 15 secured at its radially outwardly extending side walls 16 by tapered L- shaped cross-section clamping rings 18 bolted at 22 to plain surfaces 14 of flanged hubs 12 keyed to driving and driven shafts 10, 11, failure at the connections between the rubber element 15 and hubs 12 is avoided by the side securing walls 16 of the rubber element 15, having a uniform thickness (t) before assembling (Fig. 4, not shown), being permanently deformed on assembly, but with the reinforcing cords 17 free from rupture, by the inner edge of radial legs 19, of the rings 18, which legs 19 are tapered outwardly such that axial legs 21 of the rings protrude an amount corresponding to the thickness of the rubber walls 16 which are thus unstressed at their radially outer edge, the arrangement permitting a maximum clamping rupture-free connection between the rubber element 15 and flanged hubs 12. The frictional clamping effect between the legs 21, of the rings 18, and the surfaces 14 of the hub flanges 13 relieves the bolts 22 from the driving torque shear load and resultant bending. In other arrangements (not shown) the tapered clamping surface may be alternatively formed on the hub flanges 13, or, on both the hub flanges 13 and clamping rings 18. Various formulae are given for determination of the tapered clamping angle for maximum clamping pressure free from rupture of the annular rubber element.
Patent GB-343176-A (GB)
Title: Collapsible seat, stool, or chair, with receptacle for holding articles
IPC: A47C7/64
Filed: 1929-11-19
Abstract: 343,176. Collapsable chairs. SIDAY, W. E., 61, Kew Road, Richmond, Surrey. Nov. 19, 1929, No. 35290. [Class 52 (ii).] A collapsable chair has a box seat portion, front and rear legs pivoted to the exterior of the box sides by means of elements such as discs or angular extensions on the legs, lying against the box sides, and means coacting with the said elements or with the legs, to lock the latter positively in opened position. Such a chair is shown in Fig. 1 comprising a box 1 with hinged lid 2, legs 4, 5 having pivoted angular extensions 9<1>, 26, and holes 27 to snap over projections 28. The elements 91, 26 may be freed from the projections 28 by turning the bolt 29 which has flattened ends 30. A back 6, pivoted at 22, may be provided, engaging a stud 24 when in the position of use. In the modification shown in Fig. 7, the legs and back carry elements 7, 11, 12 and are held in unfolded position by a spring clip 10 and by a sliding bolt 13. This modification is shown folded in Fig. 2. The top cross-bar of the back may be shaped, as at 17. to form a carrying handle.
Patent GB-970209-A (GB)
Title: A tenderness testing device and a method of determining tenderness
IPC: G01N33/12
Filed: 1962-09-17
Abstract: 970, 209. Tenderness testing; recording apparatus. FEED SERVICE CORPORATION. Sept. 17, 1962 [Feb. 7, 1962], No. 35350/62. Headings G1J and G1S. A meat tenderness testing device comprises a cylindrical cutter 21 having a dull blade shaped as shown in Fig. 1A. The end cap 25 is removed from the device and spikes 73 are inserted in the meat to initially position the cutter which is slidably and rotatably mounted and urged towards the meat with a constant force by four springs 57. Additional springs 92 may be used to counteract the additional force due to the weight of the cutter and associated parts if the machine is used in a vertical position. The cutter is rotated by means of a motor 29 a predetermined number of times, a follower 74 preventing meat falling into the path of cutter, and the depth to which the cutter penetrates is shown by means of a resilient stylus engaging a drum 79 which moves axially with the cutter and is rotated therewith.
Patent GB-409442-A (GB)
Title: Improvements in tables
IPC: A47B3/12
Filed: 1932-12-14
Abstract: 409,442. Tables. JONES, W. H., Small Street, Stockport Road, Manchester. Dec. 14, 1932, No. 35394. [Class 52 (iii).] In a folding table such as that described in Specification 368,075, the upper ends of any two adjacent legs are made or provided with spring- controlled or automatically-returnable parts which enable the top to be inserted and withdrawn without folding-up the leg frame. Fig. 5 shows the upper end of a table leg a fitted with a movable part d on a blade spring f; this may be set on the inner face of the part d. Fig. 5<b> shows a part d which is slidable horizontally on a bolt k and is pressed by a spring l; a similar pin and spring may be set vertically in a recess in the leg a adjacent to the base of the part d. In a modification a spring-pressed sliding catch bolt is fitted in the upper end of the leg so as to engage with the upper edge of the rim of the top e. Knobs are fitted to the legs to support the table top e in a vertical position for use as a fire screen ; in this usage the legs are folded together, and are supported by their splayed feet. To prevent accidental folding of the unfolded frames, they are connected by a hook- and-eye device. The top is reversible, one part being covered with baize or the like.
Patent GB-939269-A (GB)
Title: Improvements to thread measuring devices
Inventor: ORAM JOHN ANDERSON
IPC: G01B13/08
Filed: 1960-10-15
Abstract: 939,269. Pneumatic gauges for measuring average thread cross-sections. K.D.G. INSTRUMENTS Ltd. Oct. 13, 1961 [Oct. 15, 1960], No. 35400/60. Class 106 (2). A fluid-flow gauge for measuring the average cross-section of a predetermined length of thread comprises a groove formed by a fixed part 1, a movable part 2 and a perforated or slotted bottom 5. The thread 3 extends along the groove and is held in the acute angle between the face 28 and the grating 5 by suction exerted via the tube 30 and the tube 7. The latter connects with a chamber 38 (see Fig. 3), on one side of a diaphragm 37, a chamber 39 on the other side being also connected to the tube 30 leading to the pump. The needle valves 33 and 34 are initially adjusted so that the diaphragm 37 is in a neutral position for a thread of standard size. A departure from this size will then produce an altered air-flow through the gap 6 between the thread and the groove wall of the movable part 2, and the diaphragm will be deflected and thus complete a circuit via contact 47 or contact 48. Thus either the indicator 53 or 54 will register (according as whether the thread cross-section is greater or smaller than the standard size) and a reversible motor 50 will be operated to move the part 2 (in a manner to be described below) until the air-flow has the initial value. The amount of movement of the part 2 then gives an indication of the departure from standard size. A shaft 8 is driven by motor 50 through a belt-drive and has a lead-screw for moving a nut 12 mounted on rollers 13 across a baseplate 14. Inner portions 11 of the rollers have reduced diameter and bear against a camsurface 26 carried by: a bridge 45 which is pivotally connected at 22 to a lever plate 19 and pivots the latter about pins 17 fixed to the base plate 14 as the bridge 45 is raised or lowered by the cam-and-roller action. Arms 18 fixed to the lever plate 19 bear against spring-loaded pins 15 fixed to the part 2 and cause movement of the latter towards or away from the part 1. The shape of the cam is such as to give a reading on the indicator 9, as this revolves with the shaft 8, linear with the thread cross-section because, in general, the displacement of the part 2 will be non-linear. The thread may be fed between feed and take-up spools 55, 56 and a continuous indication of its average cross-section obtained.
Patent GB-1088735-A (GB)
Title: A new salt
IPC: C07D415/00
Filed: 1966-08-08
Abstract: The invention comprises thiamine ascorbate, which may be prepared either by ion exchange in aqueous medium between ascorbic acid and thiamine salt, e.g. the hydrochloride, or by reaction between thiamine sulphate and ascorbic acid in aqueous medium at a temperature between normal temperature and 80 DEG  C. in the presence of baryta.  Examples are given.  Pharmaceutical compositions comprise thiamine ascorbate in association with a carrier or coating.  In an example tablets are prepared from thiamine ascorbate, starch, colloidal silica and magnesium stearate.  Other ingredients mentioned include sucrose, lactose, water, liquid paraffin, gelatin, propylene glycol, olive oil, ethyl oleate, cacao butter and suppository-wax.