baber/WOPTO huggingface dataset:
Patent GB-449029-A (GB)
Title: Improvements in and relating to cylinder locks
IPC: E05B27/04
Filed: 1934-12-18
Abstract: 449,029. Revolving barrel locks. BAXTER, F. W., 15, Hanover Park, Peckham, London. Dec. 18, 1934, No. 36350. [Class 44] A pin tumbler cylinder lock has one or more displaceable segments on the plug normally held in alignment by a driver or tumbler and capable of movement transversely to the axis thereof limited only by the driver or tumbler and the cylinder in which the plug is housed, so that when subjected to an angular torque a ledge is formed to prevent continued movement of the tumblers into the unlocking position by a picking instrument. Alternatively or in addition, grooves may be formed on the tumblers or drivers to engage corresponding grooves in the bores of the cylinder and plug. Fig. 5 shows a lock in which the plug 1 has a segmental portion 8 and the cylinder bore has two recesses 12 so that when a torque is applied to the cylinder a ledge 11 is formed to prevent the tumbler 5 from being raised to its unlocking position, or should the picker succeed in doing this the segment tends to become displaced and engage one of the notches 12 as the cylinder is turned. In addition the driver 3 is tapered and the opening in the segment 8 flared out to prevent the formation of a ledge on which the driver can rest in the unlocking position. Grooves are formed as shown in the tumbler and the driver bore so that, should a torque be applied to the cylinder when the tumbler is raised the tumbler grooves will engage those in the driver bore to prevent the return of the tumbler. Grooves may also be formed on the drivers and in the tumbler bores. A segment 8 may be provided at each bore or only on some of them, or one segment may extend over all or several of such bores. The segments 8 may have concave or convex undersurfaces instead of flat and may be split into upper and lower parts as shown for a convex surfaced segment in Fig. 10. Fig 12 shows a segment 8 resting upon a cylindrical plug of smaller diameter than the cylinder. The lower ends of the bores in the segments may be opened out so that the tumblers do not normally engage them. The grooves in the tumblers or drivers may be screw-threads, or single grooves as shown in Fig. 17 where a groove 32 in the driver co-operates with a groove 19 in the plug which also has its bore enlarged at its upper end as shown at 18. Fig. 19 shows a lock in which the tumblers normally rest on the drivers by gravity. A segment 22 in this case is provided in a recess in the cylinder. Fig. 20 shows an additional safeguard against picking which comprises a lever 23 pivoted in the plug, and normally engaging a groove 26 in the cylinder. The lever becomes displaced as shown by inserting the proper key. To prevent picking by cutting away the flange of the plug and inserting thin feelers between the plug and cylinder, spring rings 28, Fig. 22, are sprung into grooves 29, 30 in the plug and cylinder.
Patent GB-977998-A (GB)
Title: Improvements relating to semiconductor devices
Inventor: HYMAN ROBERT ANTHONY
IPC: H01L29/00
Filed: 1961-10-10
Abstract: 977,998. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Oct. 10, 1961, No. 36351/61. Heading H1K. A device consists of a semi-conductor disc including two or more PN junctions parallel to its faces mounted between two rigid electrodes of the same external diameter as the respective faces of the disc. A further electrode is mounted on an exposed face of an intermediate zone lying parallel to the main faces. A disc-shaped junction transistor body 1 (Fig. 2) of silicon with a circumferential extension of the base zone is soldered by a lead-tin alloy between copper discs 5, 6. The difference in the expansion coefficients of copper and silicon causes a uniform radial compressive stress to be set up in the disc when the solder cools, which is maintained during operation. An annular base contact 8 is attached to the base zone extension. A controlled PNPN rectifier is constructed in essentially the same way. An alternative junction transistor construction is shown in Fig. 4. In this case the copper discs 22, 24 are each pierced by corresponding C-shaped apertures 23, 25 or by pairs of concentric C-shaped apertures interconnected at their centres, Fig. 6 (not shown). The base zone extends to a face of the wafer in one annular region 19 as shown, or in two such regions, and base contacts corresponding in shape to the apertures in the emitter and collector disc contacts are made to these regions.
Patent GB-1399933-A (GB)
Title: Holding assemblage for off-bottom culture of oysters and analogous shellfish
IPC: A01K61/54
Filed: 1972-08-08
Abstract: 1399933 Oyster culture R GEORGE 27 July 1973 [8 Aug 1972] 36873/72 Heading A1A A holding assemblage for off-bottom culture of oysters and analogous shell fish has a spine 10 upon which are individually mounted trays 11 with spavers 12. A removable mesh curtain 16 is wrapped around the trays and secured by hooks 17 and eyes 18. The'spine may be fitted to a weight base 13 and the assemblage may be suspended from a buoy by a rope 14 or from an eye, (15a) Fig 4 (not shown,) screwed into the upper end of the spine. Alternatively the spine may be supported off the bottom by a fixture from below resting on the bottom. The trays may be either solid and impervious or of meticulated form and may be centrally apertured discs which can be spun round for cleaning and inspection of stock. Spacers may be separate or integral with the trays and the assemblage is designed for easy packaging. The fastening elements 17 and 18 may be attached to marginal stiffeners 19.
Patent GB-1019873-A (GB)
Title: Improvements relating to pipe hose and like couplings
Inventor: NEILSON WILLIAM
IPC: F16L23/10
Filed: 1962-10-01
Abstract: 1,019,873. Band clips. H. K. PORTER CO. (GREAT BRITAIN) Ltd. Sept. 27, 1963 [Oct. 1, 1962], No. 37146/62. Addition to 885,996. Heading E2B. The invention relates to an improvement or modification of the pipe coupling disclosed in the parent Specification and which comprises a plurality of sections 1, 2, 3 arranged or adapted to be arranged end to end to form a substantially continuous circlet to embrace the peripheral flanges of two pipes to be connected by the coupling, the sections being of channel form adapted to straddle the pipe flanges and urge same axially together upon radial inwards movement of the sections towards the pipe axes and having outturned lips 4 to support encircling bands such bands coacting with means for adjusting their effective circumference thereby to adjust the circumference of the circlet of sections. According to the invention such a pipe coupling has at least two encircling bands supported by each of the outturned lips the corresponding bands on opposite sides of the circlet of coupling sections coating with individual means for adjusting their effective circumference such individual adjusting means being disposed at angularly disposed locations around the circlet. In the construction shown two bands 5, 6 are supported by each lip and the corresponding bands 5, 5 and 6, 6 of each pair are formed by the limbs of an individual hairpinlike link of stranded high tensile steel cable, the heads of the respective hairpin-like cables extending freely in U tubes 10, 11 respectively as disclosed in Specification 890,006. Each U tube is disposed in the eye of an individual eye-bolt 12, 13 the extremities of the hairpin limbs being swaged into eye fittings 14, 16, and 15, 17 (not shown) which are pivotally mounted on the crossheads of T pieces 18, 19 each having a hollow shank 20 through which the associated eye-bolt 12 or 13 extends to a nut 21 and adjustment of which adjusts the circumference of the associated bands. The eye-bolts 12 or 13 and T-pieces 18 or 19 constitute the adjusting means. Each eye-bolt 12 or 13 is located on a different section by means of a bifurcated strip 22 on the section, the arms 23 of the strip being hooked over the U tubes 10, 11. Each clip may support more than two bands and at least in the case of some pairs they need not be interconnected.
Patent GB-1282485-A (GB)
Title: Electric motor driven ducted fan assembly
Inventor: MEDITZ LUDWIG F
IPC: H02K41/025
Filed: 1969-07-25
Abstract: 1282485 Aerial self-propulsion apparatus L F MEDITZ 25 July 1969 [25 July 1968] 37461/69 Heading B7G [Also in Divisions F1 and H2] An electric motor-driven ducted fan assembly 10 comprises a cylindrical duct 12 mounted and inside which are a spaced circumferential series of stator assemblies 40, 41 having magnetic wires 36, 37 magnetized when coils 32, 34 wound thereon are energized, and a rotor assembly 25 having a plurality of pitched radially extending fan blades 28 secured to a longitudinally extending rotary shaft 24 and to a hub 27 secured to the shaft the outer ends of the blades being secured to a concentric ring 26 having a plurality of oblique circumferentially spaced magnetic bars 31 whereby upon such energization the ring is driven and the blades impel air axially through the duct. The embodiment shown is stated to be an aircraft jet propulsion assembly and further comprises rotary blades 20 mounted on the shaft 24 and dispersed in inlet and output ends 14, 15. The stator coils are connected in a 3Ph arrangement and are partially covered by protective coverings 132, and the rotor bars 30 may be of soft Fe, and dispersed in slots 31 on each side of the electrically conductive e.g. Al. ring 26. Whilst the embodiment shown is for military or commercial planes, Fig. 7 discloses a single stage such motor forming a one-man helicopter wherein a passenger (P) rides in a cradle (82) carrying an l.c. engine (62), a generator (60), and rudder and elevator fin controls (84), (86). In Figs. 8 and 9 the rotor ring (26b) is a short cylinder radially outside which are the stator assemblies.
Patent GB-325915-A (GB)
Title: Improvements in or relating to spring mattresses, cushions, upholstery or the like
IPC: A47C27/04
Filed: 1928-12-19
Abstract: 325,915. Earle, R. W. Dec. 19, 1928. Cushion and like covers.-In a mattress or like structure embodying an assemblage of upholstery springs a padded case or covering is provided comprising three or more layers of fabric a, e, d stitched in parallel rows to form superposed pockets which are preferably in staggered relation. Specification 308,290 is referred to.
Patent GB-888914-A (GB)
Title: Improvements in friction brakes
IPC: F16D55/224
Filed: 1959-11-05
Abstract: 888,914. Brakes. VANDERBIJL ENGINEERING CORPORATION Ltd. Nov. 5, 1959 [Nov. 18, 1958], No. 37528/59. Class 103 (1). A friction brake comprises a rotatable surface, a fixed anchor for supporting, at least at two points, a braking member, springs applying, at least at two points, a braking force which is relieved by fluid pressure, the braking member having limited rotational movement when subjected to abnormal braking torque, and springs to support the braking member out of contact with the rotatable surface. Brake shoes 12, Fig. 1, are pivoted at 24 to levers 23 pivoted together at 25; springs 16 in cylinders 20 carried by shoes 12 act through pistons 19, rods 17, pivots 22 and levers 23 to apply the shoes to a brake drum 11 of a hoist, the brake being released by fluid pressure admitted via pipes 18 to cylinders 20. Rollers 27 on ends 26 of levers 23 engage abutments 28 on levers 29 pivoted to a fixed member, and rollers 30 on shoe extensions 31 rest between nests of springs 34 carried by levers 29, the springs 34 being precompressed to prevent rotation of shoes 12 in either direction provided the braking torque does not exceed a predetermined preset value. Should the drum be rotating clockwise in Fig. 1 and this value be exceeded, then the left roller 27 will engage abutment 28 to rotate lever 23 against spring 16 and reduce the brake applying force. Nuts 21 on rods 17 are adjusted to define the brake clearance. In a disc brake, Figs. 2, 3, annular plates 38 braced by brackets 40, are applied to a rotary disc 35 by springs 42 and released by fluid pressure actuator 43 in units 41 spaced around the disc. Springs 44 mounted between plates 38 and a fixed member 39 correspond to the nests of springs 34 in Fig. 1, and plates 45, Fig. 6, are pivoted at 46 to plates 38 and at 47 engage pins on member 39. When springs 44 are overcome the relative rotation of plates 38 and member 39 rotates the plates 45 to increase the distance between pins 46 and so relieve the brake applying force. In the band brake, Fig. 7, the band 48, 50 is applied to drum 11 by springs 16 acting through levers 52 pivoted at 53 to a fixed member 54, and rods 50, and released by fluid pressure in cylinders 20. When the braking torque overcomes the force exerted by springs, 56, the levers 52 are rotated to relieve the braking force.
Patent GB-1406889-A (GB)
Title: Video signal output of an opto-electronic transducer to simulate the effect of an electrical filter on said video signal
IPC: G02B5/20
Filed: 1972-08-11
Abstract: 1406889 Diffraction grating PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 11 Aug 1972 [14 Aug 1971] 37551/72 Heading G2J [Also in Division H4] In the field-sequential colour-television camera described in Specification 1293315 with reference to Figs. 1, 2 and 4 thereof, the frequency spectrum, Fig. 2, of the definition reduced luminance signal Y<SP>1</SP> produced by electronically removing the high frequency content CY from the full frequency range luminance signal Y, is different from that (Y) produced by the matrix combination of the reduced definition chrominance signals R, G, B. A point source L, Fig. 1, produces a luminance distribution across a scanned line of the camera tube target 3 as shown in Fig. 5a yielding a luminance signal at A having a corresponding shape and lasting 100ns between half power points. The removal of the high frequency content CY from this signal at 9, yields the broadened Gaussion shaped pulse of Fig. 5b. It is therefore an object of the invention to optically reduce the definition of the chrominance signals such that the signal Y has the same shape and extent as that of Y<SP>1</SP> in Fig. 5b. Each colour section of the rotating filter 1, Fig. 3 is covered with a series of sections of diffraction gratings, the gratings in each sector having different spacings. The spacings of the gratings are calculated such the following action takes place. The light distribution of Fig. 5a is diffracted by the grating Z=1 through an angle of α, Fig. 4 to give two first order diffraction distributions I 11 , as well as the zero order, non diffracted distribution I 01 . Similarly the light distribution of Fig.5a is diffracted by the gratings Z = 2, 3-6, to give the respective first order distributions I 12 , I 13 , I 14  ... I 16  as well as the undiffracted zero order distributions I 02  - I 06 . The diffracted light distributions are integrated by the target of the camera tube so that an 'envelope' distribution is produced having the required shape and extent of Fig. 5b. A phase grating is preferable, since it allows greater control of the diffraction characteristics, although a black and white grating may be used.
Patent GB-894595-A (GB)
Title: Pyrophosphate phosphor for fluorescent lamps
IPC: C09K11/71
Filed: 1958-11-21
Abstract: Alkaline earth metal pyrophosphates activated by a metal in a low valency state to give phosphors are prepared by forming an initial mixture of ingredients which on firing will form the phosphor, and additionally contains an ammonium compound, for example ammonium chloride, not being such an ingredient, to serve as a source of ammonia.  The ammonia content of the mixture being between 0,12 and 1,4 moles of ammonia per mole of pyrophosphate, and firing the mixture in a covered vessel, for example a crucible with a lid. Pyrophosphates of barium, strontium, calcium, magnesium, and mixtures thereof, activated by tin, are mentioned.  In Examples, (1) mixtures of SrHPO4, CaHPO4, (NH4)2HPO4, SnO, and NH4Cl is fired at about 1170 DEG  C. for 1,5 hours and 20 minutes, (2) a mixture of BaHPO4, (NH4)2HPO4, SnO, and NH4U is fired at about 1150 DEG  C. for 1,5 hours.
Patent GB-1430374-A (GB)
Title: Apparatus for measuring lengths of weft for insertion in a shuttleless loom
IPC: D03D47/36
Filed: 1973-08-08
Abstract: 1430374 Measuring weft TEIJIN LTD 8 Aug 1973 [10 Aug 1972 (4)] 37619/73 Heading D1E Apparatus for measuring the insertion lengths of wefts of different types comprises a measuring drum 4 rotating at constant speed, a roller 3 or 3' for pressing the selected weft against the drum surface while maintaining the peripheral speed of the roller or rollers 3 or 3' not in contact with drum equal to that of the drum 4. The rollers 3, 3' are mounted on respective pivoted arms 5 which are controlled by cams 10, 10' operated by a pattern reading mechanism. The roller(s) not in contact with the drum 4 is maintained at a constant speed by a flexible connection between the axles of the rollers, or by rollers 13', 13" in constant contact with the rollers 3, 3' and mounted on a common axle (Fig. 3), or the rollers may be connected to an intermediate shaft by belts (Fig. 6, not shown). The arms 5 may have an extension 29. Figure 8, which operates a clamp 27 to clamp the weft, when the corresponding roller 3 is lifted from the surface of the drum 4. The measured weft may be stored in vacuum storage tubes (C, C') Fig. 10 (not shown).
Patent GB-971436-A (GB)
Title: Balancing apparatus for internally-splined rotary discs
Inventor: WARBURTON PERCIVAL
IPC: G01M1/02
Filed: 1963-09-24
Abstract: 971,436. Securing discs on shafts. ROLLSROYCE Ltd. Sept. 24, 1963, No. 37638/63. Heading F2U. [Also in Division G1] To secure a disc 42, e.g. a compressor or turbine disk of a gas turbine, on the hub 10 of a machine used for static balancing, a screw 32 is tightened to force oil up a passage 33 in the hub and into a ring-shaped groove 34 sealed by rubber and nylon rings 36, 37, the pressure of the oil expanding radially a surrounding ring 14 so that its external splines 15 are forced into tight engagement with internal splines 43 in the hub of the disc. The disc 42 is slidden on to the splines 43 of the ring 14 before the screw 32 is tightened and when there is some free play between the two sets of splines 42, 43, thus avoiding wear &c. of the disc splines. The screw 32 is paired by a diametrically-opposite similar screw &c. (not shown). Two screws 20 in a plane perpendicular to the plane containing the screws 32 are tightened to force oil up passages 22 to sealed ring-shaped grooves 17, and thus secure the hub 10 to a sleeve 30 of the balancing machine.
Patent GB-1400746-A (GB)
Title: Pretreatment of sheet steel or steel plate to be pressed and or subjected to vitreous enamelling
IPC: C23F17/00
Filed: 1972-08-11
Abstract: 1400746 Enamelling steel KAWASAKI SEITETSU KK 11 Aug 1972 37669/72 Heading C1M [Also in Divisions C7 and B2] Steel which is to be enamelled exclusive of stainless steel and in the form of sheet steel or steel plate has over a surface thereof a watersoluble covering which is substantially completely formed of dry water glass. The covering, which may be 2 to 5 microns thick, reduces the risk of scratching of the steel during pressing thereof to shape and can be washed away before applying vitreous enamel, paint, Cu, Ni or Cr. Steel, other than stainless steel, may be (a) roughened, e.g. electrolytically, (b) Ni plated or phosphated, (c) coated with a solution of water glass, (d) dried to an extent such that solvent water is substantially completely removed but water of hydration is retained, (e) coated with wax, (f) pressed to shape, (g) washed to remove water glass and wax and (h) vitreous enamelled.
Patent GB-302934-A (GB)
Title: Improvements in and relating to rotary grooving cutters
IPC: B27G13/14
Filed: 1928-12-21
Abstract: 302,934. Bolinders Mekaniska Verkstads Aktiebolag, J. & C. G. Dec. 23, 1927, [Convention date]. Cutters.-In a rotary grooving cutter for woodworking formed of two disc-shaped parts 1, 2, assembled axially, each part carrying half the total number of teeth on the cutter, the teeth 3, 4 on each part respectively are formed of the same thickness throughout their length so that when the teeth have been re-ground from the length shown in Fig. 3, to that shown in Fig. 4 and the parts 1, 2 have been adjusted to preserve the same overall width 5, 6, in the groove produced, there will be no axial gap between the teeth on the two parts. The teeth may further be ground to the extreme limit of their length without producing such a gap. The thickness of the teeth is less than that of teeth which taperrearwardly from their cutting edges and to compensate for this the teeth are strengthened by side walls 9 adjacent the sides of the groove, the peripheral surface of the teeth being eccentric as shown in Fig. 5, so that the thickened portion passes out of the groove at a point 11 and thus does not interfere with the groove. The teeth are inclined to the direction of rotation of the cutter as shown in order to provide the necessary relief.
Patent GB-1443699-A (GB)
Title: Production of reinforced grass on root impermeable surfaces
IPC: A01G1/00
Filed: 1972-08-15
Abstract: 1443699 Grass carpet J BLACKBURN 19 July 1973 [15 Aug 1972] 37924/72 Heading A1E To produce a reinforced grass carpet a layer of soil, humus or compost 5 containing grass seed and any necessary plant food is spread on a perforated plastics sheet 3, or other water and root permeable layer, which is laid directly on a light-proof and root impermeable plastics sheet 2. Germination is improved by placing perforated plastic tiles on the seeded area. The grass carpet is rolled up and transported to a desired site, the light-proof sheet 2 protecting the grass roots during this operation. The sheet 2 is then removed and the carpet laid, and an additional layer of soil may be spread over it if necessary.
Patent GB-1011396-A (GB)
Title: Electric arc welding apparatus
IPC: B23K9/10
Filed: 1962-10-09
Abstract: 1,011,396. Arc-welding systems. ATELIERS DE SECHERON S.A. Oct. 9, 1962 [Dec. 1, 1961], No. 38226/62. Heading H2H. A control circuit for arc-welding comprises a pair of identical half voltage transformers 1, 1a whose secondary windings 5, 5a link a pair of magnetic amplifiers 2, 2a whose control windings 6, 6a link a pair of non-saturable inductors which block the second harmonic of the supply. The arrangement is stated to give an increased current slope about the zero axis.
Patent GB-1103590-A (GB)
Title: Soap compositions
Inventor: LANCASHIRE FRANK
IPC: C07F9/38
Filed: 1965-09-08
Abstract: Soap compositions comprise (a) soap; (b) at least one water-soluble non-soap organic surface active agent which contains in its molecular structure a zwitterion or a semi-polar bond; and (c) at least one water-soluble salt of a phosphonic acid of the formula <FORM:1103590/C4-C5/1> wherein X is H or OH and Y is H, CH3, CH2COOH, CH2PO3H2 or CH2CH(PO3H2)2, or X and Y together are carbonyl oxygen, the weight ratio of non-soap organic surface active agent to phosphonic acid salt being from 1:4 to 4:1 and the weight of non-soap organic surface active agent and phosphonic acid salt together being at least 5% of the weight of the soap. Examples of (b) are water-soluble salts of alkylated betaines and sultaines of the general formula <FORM:1103590/C4-C5/2> wherein R1 is an alkyl group of 10 to 18 carbon atoms, R2 and R3, which may be the same or different, are each alkyl groups of 1 to 3 carbon atoms, R4 is an alkylene or hydroxyalkylene group of 1 to 4 carbon atoms and X- is a carboxylic acid or sulphonic acid anion, and certin tertiary amine oxides, sulphoxides and tertiary phosphone oxides.  Preferred examples of (c) are ethane-1,1,2-triphosphonic acid pentasodium salt, propane-1,1,3,3-tetraphosphonic acid penta-sodium salt and, more especially, ethane - 1 - hydroxy - 1,1 - diphosphonic acid tri-sodium salt.  The compositions preferably contain at least 40% by weight of soap and, in addition to the above ingredients, may optionally contain from 2 to 20%, by weight of the soap, of a low foaming non-ionic detergent, such as the condensation product of one mole of hydrogenated tallow fatty alcohol and 4 moles of ethylene oxide.  The usual detergent additives may also be included.