baber/WOPTO huggingface dataset:
Patent GB-1389177-A (GB)
Title: Process for the simi-hydrogenation of citral and its homologues to give citronellal and homologues of citronellal
IPC: C07B61/00
Filed: 1973-05-03
Abstract: 1389177 Citronellal and homologues RHONEPOULENC SA 3 May 1973 [4 May 1972] 21167/73 Heading C2C The selective hydrogenation of the ethylenic bond conjugated with the carbonyl group in compounds of formula where R 1 , R 2 , R 3 , R 4  and R 6  are independently H or C 1-5  alkyl and R 5  is C 1-5  alkyl, is effected in the presence of a Pd metal catalyst in a substantially anhydrous C 1-5  aliphatic alcohol containing an alkali metal or alkaline earth metal salt of an oxyacid of boron. The alcohol may contain up to 0À1% of water. Examples prepare citronellal from citral, other starting materials are specified.
Patent GB-1204419-A (GB)
Title: Improvements in devices for measuring the absolute value of the acceleration of gravity
IPC: G01B9/02
Filed: 1968-05-03
Abstract: 1,204,419. Measuring acceleration of gravity. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 3 May, 1968 [5 May, 1967], No. 21168/68. Heading G4H. A device for measuring the value of the acceleration g of gravity includes a laser interferometric device for measuring the time an object thrown vertically upwards takes to get from a position A (Fig. 2) to a position B (predetermined as the position when N fringes from the interferometric device has been counted) and a device for measuring the time intervals T 1 , T 2  between the passages of the object at positions A, B on its upward path and on its downward path. In the embodiment described (Fig. 3) interference pulses S1 after shaping are fed via a gate 61, enabled by a signal S2 from a photo diode when the object, a trihedron mirror, passes through position A, to a counter 10, the first pulse passing through gate 61 also setting a bistable device 73 controlling a further gate 63. Clock pulses from a high frequency source 3 then pass through gate 63 to a first counter 81. When the counter 10 reaches a predetermined count N a circuit 91 sets a second bi-stable device 74 to enable a gate 64 to pass clock pulses to a second counter 82. Either a direction discriminator 13 or a threshold detector (17, Fig. 4, not shown) connected to the output of a sawtooth generator (15) receiving the shaped interference pulses transmits a signal to the counter 10 at the top of a trajectory of the mirror to reverse the count, bi-stables 74, 73 being reset when the count reaches N and zero respectively to stop the counts in counters 82, 81. The contents of the counter are fed to a computer which calculates where L is the height AB. A large number of measurements may be taken and the mean calculated. The result may be printed.
Patent GB-1508657-A (GB)
Title: Needle-suture combination
IPC: A61F2/00
Filed: 1975-05-19
Abstract: 1508657 Surgical needle ETHICON INC 19 May 1975 [1 July 1974] 21199/75 Heading DIG A controlled release needle-suture combination comprises a needle recessed at its blunt end to receive a suture comprising a normally crystalline oriented synthetic polymer which when heated to a temperature below its melting point becomes laterally swollen, the suture being removable from the recess by the application of a straight pulling zone of less than 30 oz. Suitable sutures are polypropylene, polyethylene terephthalate, nylon or a homopolymer or copolymer of lactide and/or glycolide. The recess may be bottle shaped or cylindrical and be threaded or have annular ridges. Methods of forming the bottle shaped recess are described. After the suture is disposed within the recess the needle is heated by conduction, induction or by infra-red, microwave or resistance heating.
Patent GB-1429033-A (GB)
Title: Pulverulent coating compositions based on polyamides
IPC: C09D5/03
Filed: 1973-05-04
Abstract: 1429033 Pulverulent polyamide coating- composition CHEMISCHE WERKE HULS AG 4 May 1973 [5 May 1972] 21211/73 Heading C3R A pulverulent coating composition comprises one or more polyamides (P) and 0À01-2% wt. of an acid crosslinking catalyst (C). There are 8-11 aliphatically linked C atoms per amide group in the total polyamide, and 0À2-5% of the amide groups in the total polyamide bear an alkoxymethyl group (G) attached to the N atom. The group (G) may be methoxymethyl. The polyamides (P) may comprise a mixture of (a) a polyamide in which the amide groups are unsubstituted, with (b) a polyamide in which 30-60% of the amide N atoms bear groups (G). (a) is e.g. nylon 11 and/or 12, and (b) may be derived from nylon 6, 8, 11, 12, 6/6, 12/6, 6/10, or 6/9. Catalyst (C) may be a C 1-12  mono- or di-carboxylic aliphatic acid, a Lewis acid, or a mineral acid, or ammonium or alkali metal salt thereof, and is such as not to cause discoloration of the composition by undesirable reaction with the additives, solvent, or polyamide. (C) may be e.g. phosphoric acid, or a combination of a tris-alkylphenyl, tris-alkyl, tris-cycloalkyl, tris-aryl, or mixed ester of phosphorous acid, the alkyl radicals containing 1-16 C atoms and being straight or branched, together with an ester of with a C 1-18  aliphatic alcohol, e.g. pentaerythritol. The composition may be made by cooling a solution of polyamide (a) in an organic solvent and adding polyamide (b) to the solution; polyamide (b) may contain catalyst (C) from its manufacture, or (C) may be added separately. Or a solution of polylauroyllactam in an organic solvent may be cooled, an alkoxy methylisocyanate or methylhemiformal being added to the solution. Pigments, e.g. TiO 2 , C black, or CdS, or heat stabilizers, e.g. Cu or Mn salts, may be added to the solution in amounts of 0À1-2% wt. Uses.-Coating metals by the fluidized-bed, flame-spraying, or electrostatic coating processes.
Patent GB-257926-A (GB)
Title: Machine for making and finishing glass bars, rods, tubes, bottle necks, and the like
IPC: C03B23/09
Filed: 1926-08-28
Abstract: 257,926. Broche, L. J., (Assignee of Durand, V.). Sept. 5, 1925, [Convention date]. Glass furnaces; charges, conveying.-A machine for fiinishing glass articles, such as the ends of rods or tubes or the necks of bottles, comprises a pair of parallel screws of reversed pitch for feeding the articles in succession through the machine. The articles 1, which may be rods to be formed into towel rails, are placed in a hopper 2, Fig. 1, and are fed by gravity on to two parallel screws 3, 4, Figs. 1 and 3, which are of reversed pitch and are rotated in unison in opposite directions. The rods are fed by the screws between two glory holes 8 in which the ends of the rods are softened. The pitch of the screws changes from one end to the other in order to spread out the rods as they pass through the glory holes. When they reach the end of the screws the rods have their ends moulded by an operator. They are then placed on lower screws 12 which convey them back below the glory holes to a shoot below the hopper 2.
Patent GB-719389-A (GB)
Title: Improvements in or relating to sealing and damping devices for pistons
IPC: F16J15/32
Filed: 1951-09-10
Abstract: 719,389. Pistons. QUALCRAFT GENERAL ENGINEERING PRODUCTS, Ltd., CHURCHHOUSE, E. E., and WILLIAMS, E. B. Aug. 6, 1952 (Sept. 10, 1951], No. 21266/51. Class 122(1) [Also in Group XXIX] A piston comprises a flexible cup-shaped washer 13 clamped between a piston head 11 and a disc 14 carrying a series of spring loaded plungers 18 slidably mounted in radial recesses therein and engaging the skirt of the washer 13. A disc 19 mounted on the disc 14 restricts the flow of liquid to the outlet 23 when the piston reaches the end of its stroke.
Patent GB-358602-A (GB)
Title: Improvements in or relating to game or amusement apparatus
IPC: G07F17/32
Filed: 1930-07-15
Abstract: 358,602. Coin-freed game apparatus. McCURD, W. A., 4, Langham Place, London. July 15, 1930, No. 21443. [Class 132 (ii).] Relates to a coin-freed game or amusement apparatus of the type in which a missile is thrown at or propelled towards a target and (if the operation is successful) automatically operates the apparatus to deliver or permit the delivery of a prize, a token or any suitable article. According to the invention the apparatus comprises means, operated by the weight of the coin, for delivering a missile to a playing position, a compartmented prize-wheel angularly movable in a vertical plane and arranged to receive the coin at one side thereof, a detent or escapement device holding the wheel against angular movement and means whereby the detent is, or may be, released by, or on the, successful operation of the apparatus. A coin inserted into the apparatus is received in a compartment 11 on a lever 12 which is thereby rocked into the lower position shown and delivers the coin to one of the compartments 19 of a wheel 18. At the same time, the lever raises a hoist 31 and delivers a playing ball 33 from a channel 42 to a channel 34 whence the ball runs into position on the playing area. In a modification the hoist 31 is replaced by a lever terminating in a ball-holding pocket. If the ball has been successfully played, for example, by manipulating an effigy 51, Fig. 3, of a golfer by means of external knobs, the ball falls upon a pivoted run-way 35 which is thereby rocked into the lower position shown by broken lines, to deliver the ball to the hoist 31, and at the same time, by means of a cam 37 on the lever, to depress a lever 39 and raise a link 25. The link is connected to two pawls 20, 21 which are actuated relative to an escapement wheel 23 so as to permit the compartment wheel 18 to rotate through one step under the weight of the contained coins. A guard plate 44 prevents the emptying of a compartment until it reaches a discharge shoot 43. The sides of the compartments are transparent so that the coins may be observed. The coins accruing as the result of unsuccessful attempts accumulate in the uppermost receiving compartment, the ball being returned to the hoist by an inoperative route. The surface of the putting green 57, Fig. 3, may be constituted by green pile fabric such as turkisb towelling.
Patent GB-1108696-A (GB)
Title: Energy conversion device, particularly for use in teaching mechanics and physics
IPC: G09B23/10
Filed: 1965-05-20
Abstract: 1,108,696. Educational appliances. F. MULKA. 20 May, 1965, No.21471/65. Heading G5G. An Apparatus for showing the relationship between two energies, e.g. between centrifugal force and force causing acceleration in a linear direction, comprises two trolleys 2, 8 movable independently along a single rail 1, the first trolley 2 having thereon two eccentrically weighted wheels 5, 5<SP>1</SP> rotatable about vertical axes 4, 4<SP>1</SP> and interconnected by meshing gears 6, 6<SP>1</SP> (Fig. 3, not shown). In operation, a detachable tape 22 is pulled, the two wheels rotate and at a certain point in the rotation thereof the trolley 2 will be given an acceleration in the direction R + and will move the trolley 8 with it. Due to further rotation of the wheels 5, 5<SP>1</SP> the trolley 2 will rapidly decelerate, but the trolley 8 will continue its motion along the coil until arrested by a stop 10. The velocity and acceleration of (a) a point on the circumference of wheel 5<SP>1</SP> and (b) the trolley 8 is recorded on tapes 18, 19 carried respectively by trolleys 2 and 8, which tapes are marked by rapidly oscillating pens 17. Thus the relation between the centrifugal force of the wheels 5, 51 and the force causing acceleration of trolley 8 can be calculated.
Patent GB-315368-A (GB)
Title: Distillation of tar
IPC: C10C1/04
Filed: 1928-03-02
Abstract: 315,368. Barrett Co., (Assignees of Miller, S. P.). March 2, 1927, [Convention date]. Divided on 286,278. Condensing and washing processes. - Tar is distilled by passing hot coal gases from the uptake pipe 55 of a retort 1<a> through the vapour space of one or more stills 57, the tar being sprayed into the vapour space through nozzles 60 and the resulting gases and vapours being passed to an electric precipitator 70 to remove suspended impurities and then to condensers 73, 74, 75. The tar in the still is recirculated by a pump 58 to the nozzles 60 and the pitch produced is drawn off through a pipe 67 to a tank 66. The tar and pitch collected in the precipitator 70 may be injected into the still 57. The gases from a number of retorts may be passed direct to the still 57 and a number of these stills may be connected in series. The electrical precipitator is the same as that described in Specification 286,278. Specifications 282,826 and 284,703 also are referred to.
Patent GB-1190642-A (GB)
Title: Direct-Voltage Multiplication Circuit Fed with Alternating Voltage.
IPC: H02M7/10
Filed: 1967-05-10
Abstract: 1,190,642. Voltage multipliers. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 10 May, 1967 [10 May, 1966], No. 21657/67. Heading H2F. In a multi-stage multiplier circuit, having rectifiers 10 and capacitors 11 forming each stage, the stages are connected in series by their output capacitors 2-4-K and have some of their feed capacitors 7-9-K-1 in series and the feed capacitor 13 of at least one stage is fed in parallel with the feed capacitor 15 of a following stage and forms part of a voltage divider 13, 14, which includes two capacitances, one of which capacitances is variable. This enables the voltage UnŒ #Un across part of the series connected stages to be varied, which also varies the voltage UA across the entire series of stages but not in the same proportion as the voltage variation across the part of the series. Capacitor 13 and/or 14 may be variable and capacitor 14 may be a separate capacitor connected across the first rectifier 10, as shown, or may be formed by the barrier layer of this rectifier diode. Several stages in the multiplier may be provided with variable capacitors for voltage variation (Fig. 2, not shown). The multiplier may be used for supplying image converter tubes.
Patent GB-125359-A (GB)
Title: An Improved Drop-Feed Lubricator.
Inventor: PIQUEREZ EMILE
IPC: F16N7/06
Filed: 1918-12-24
Abstract: 125,359. Piquerez, E. April 9, 1918, [Convention date]. Gravity feed lubricators.-A drip-feed lubricator has a valve h, Fig. 3, mounted on a spring i and operated by an eccentric finger k on a rod l, Fig. 1, fixed to a disk c<1> and extending through a tube g fixed to the lid c<2> of the cup. The disk c' has external corrugations to enable it to be turned, and internal corrugations engaged by a pawl m, Fig. 2. The position of the valve is indicated by figures on the dick c'. A filling opening c<3> is closed by a plate operated by a pin working in a curved slot. The body b and sight tube e are made of celluloid.
Patent GB-986206-A (GB)
Title: Improvements in magnetic tape cassettes
Inventor: SMITH ALEC
IPC: G11B23/04
Filed: 1962-06-05
Abstract: 986, 206. Tape cassette; preventing spillage. CLARK & SMITH MANUFACTURING CO. Ltd. May 15, 1963 [June 5, 1962], No. 21699/62. Heading G5R. An invertable two-spool cassette, particularly intended for the TALKING BOOKS FOR THE BLIND service has coaxial spools 18 and one, not visible in Figs. 1 and 3, underneath it, has the lower spool driven by machine means engaging hole 43 and friction pads 44, 45, engaging the spool cheeks only sufficiently to prevent over-run of the upper spool during play, the spring tension being set by screws 62. To prevent spillage during postal and other handling, the tape is led around fixed guides 58, 59 and around a pin 52 on a lever pivoted at 51 and carrying a brake member 53 engaging the spool rim in transit and disengaged during play by the action of tape tension (dotted lines, Fig. 3). A balance mass 55 prevents accelerations of the cassette in handling from releasing the brake. The head 24 is mounted on an arm 29, pivoted at 30 and elevated by rack-and-pinion means 31, 32 controlled by a rewindable, hand-operated escapement means 33-40 to select tracks from the tape. The mechanism is removable from the cassette casing on removal of a normally screweddown lid, being trapped in the interior by rubber pads 16.
Patent GB-483624-A (GB)
Title: Improvements in or relating to electrically heated thermal storage heaters
IPC: F24H7/02
Filed: 1937-08-07
Abstract: 483,624. Heat storing apparatus. HEAP, A. C., SHAND. W. L., and RYLEY, W. Aug. 7, 1937, No. 21827. [Class 64 (ii)] [Also in Group XXXV] In an electric storage heater, the storage mass 1 comprises slabs with electric heaters between them, arranged within a lagged casing 4 so as to permit an upward passage of air to be heated. An outlet valve 8 may be closed while the mass 1 is being heated, and opened to allow escape of air warmed by the stored heat. The mass 1 rests on an insulating block 11 resting on an asbestos sheet 12. A thermostat 17, controlling the electric supply to the heaters, is arranged in an enclosed space open to radiation from the mass 1. Cold air is admitted through an adjustable opening 20 so that the thermostat operates at any desired temperature level which may be considerably below that of the mass 1. The valve 8 may be operated manually or by means of a thermostat controlled by the temperature outside the building. In another form, the thermostat 17 may be placed in a recess in the block 11. The temperature of the mass 1 may be 500-600‹ C. and that of the thermostat 17 not more than 200‹ C. The warm air may be passed through a pipe system.
Patent GB-313796-A (GB)
Title: Improvements in and connected with water heaters
IPC: F24H1/20
Filed: 1928-07-30
Abstract: 313,796. Winterflood, B. W. July 30, 1928. Heating by electricity.-In self-feeding boilers in which water is supplied through a ball float valve 18 and passes upwards between a heated domed or conical bottom 7 and a surrounding sleeve 8, the delivery from the sleeve is to a. receiving tray 9 mounted above the normal water level, with a discharge pipe 21. An air or vacuum space mav surround the sleeve 8. In a modification the heating is effected by electric heating elements in the annular space between the parts 7, 8.
Patent GB-702654-A (GB)
Title: Improvements in or relating to radio navigation
Inventor: STRONG CHARLES ERIC
IPC: F16L9/10
Filed: 1952-09-02
Abstract: 702,654. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. Sept. 2, 1952, No. 22036/52. Class 40 (7) A radio navigation system defining an approximately spiral guide course (denoted by the thick line in the Figure) to the entrance gate 25 of an airport approach zone having a landing axis 22 comprises two responders A and B spaced transversely a distance d on either side of the axis 22. The aircraft P radiates recurrent timing signals, e.g. pulse or C.W. which are re-radiated by responder A and received by the aircraft and by responder B which further re-radiates them back to the aircraft which is provided with means for measuring and displaying the time displacements #1, #2 and #3 between (1) transmission of the signal from P and reception of the signal from B, (2) transmission from P and reception from A and (3) reception of the signals from A and B so that #1, #2 and #3 correspond to transmission paths (PA+AB+PB), 2 PA and path difference (PB+AB)#PA respectively, the lines of constant #1, #2 and #3 being respectively families of confocal ellipsis (foci A and B), concentric circles (centre A), and confocal hyperlolae (foci A and B). The desired spiral path from point 36 onwards comprises portions of ellipse 27, circle 30 and hyperbolae 33 which are tangential at points 37, 39 these curves being defined by #1 # bd, #2 = #3 # 2d or #1 = 270, #2 = #3 = 90 if C.W. tuning signals of wavelength 8d are employed. In operation the pilot first observes the 1# phasemeter and when the indicated value is 270 he controls the aircraft to maintain this value thereby following ellipse 27 until #2 decreases to 90 at point 37, #2 being then maintained constant along circle 31 until #3 decreases to 90 at point 39 and #3 being then maintained constant along the approach axis. Elliptical paths at different heights may be used as holding patterns for waiting aircraft. For an approach gate of width 6 km, d may be 9 km, corresponding to a 4167 c/s timing signal, the signal being transmitted from P, A and B on different carrier frequencies, Fig. 1 (not shown) and responders A and B comprising simple frequency changers, Fig. 3 (not shown). For such values ambiguities will exist but the separation between ambiguous courses is sufficient to avoid confusion. The phase meters may comprise phase discriminators operating left-right indicating meters displaying a phase range of  10 corresponding to zones bounded by the dotted lines.
Patent GB-672861-A (GB)
Title: Improvements in or relating to gas-solid contact surfaces
Inventor: GRIFFITH ALAN ARNOLD
IPC: F02C7/04
Filed: 1948-08-20
Abstract: 672,861. Air intakes; boundary layer control. ROLLS-ROYCE, Ltd. July 25, 1949 [Aug. 20, 1948], No. 22069/48. Class 4. An aerodynamic body such as an aircraft has as in Fig. 1 an annular air intake 1 facing rearwardly and bounded by the inwardly turned surface 2 of a nacelle fuselage convex surface 3 and the concave surface 4 of a jet pipe. The form of both the surfaces 3 and 4 are approximate logarithmic spirals, the maximum curvature of the surface 3 being around the lip 5 inside of which is a suction slot 7 the downstream side of which is concave so that there is no rise of pressure on the surfaces 3 and 4 except between 7 and its associated stagnation point 7a. Surfaces 3 and 4 are so arranged that a stagnation point 6 lies outside of the intake. In Fig. 3 a gas turbine power plant 12 is housed in the rear end of an aircraft fuselage 10 in which an air intake 16 is provided having a lip as shown in Fig. 1 and a suction slot 24. Air is drawn off by the auxiliary compressor 22 and delivered to the main inlet 17 of the main compressor 18. Specification 578,763 is referred to.
Patent GB-219200-A (GB)
Title: Improvements in tire chains
IPC: B60C27/12
Filed: 1923-09-01
Abstract: 219,200. Blacker, P. B. Sept. 1, 1923. Tread bands.-A detachable non-skid device comprises side chains 1, 2 and cross linkage formed by short loops 12 and a zig-zag chain 7. In attaching to a wheel, the chain 1 is first assembled on the inside of the wheel, the hooked end 3 being passed through the eye 4 at the other end of the chain and secured. The outer side chain 2 has similar, but oppositelyarranged hooked and eyeletted ends 5, 6 respectively. In joining-up the ends of the chain 2, the hook 5 is first passed through a ring 10 on the end 9 of the cross-section 7 so as to enable the device to be pulled tightly over the tyre. As shown in Fig. 1, a spring 14 may be used for maintaining the device taut.