baber/WOPTO huggingface dataset:
Patent GB-1436081-A (GB)
Title: Cinematographic camera
IPC: G03B31/02
Filed: 1974-06-27
Abstract: 1436081 CinÚ cameras BOLEX INTERNATIONAL SA 27 June 1974 [27 June 1973] 28492/74 Heading G2E A cinÚ camera has means which enter a cassette therein and provide guiding means for guiding the film in a sinuous path as it passes from one chamber to another in the cassette through a narrow slot, the sinuous path keeping the film clear of the edges of the slot. The camera is a silent camera which is, however, being used with a cassette containing a film having a sound track attached thereto before exposure. The cassette has a dark chamber, from which the film passes into a chamber where, in a sound camera, the sound recording would be effected, the film then returning into the dark chamber. These two chambers communicate by narrow slots, which may have sharp edges which could scratch the film emulsion. The camera may have two pins 10 with tapered tips, which enter into the cassette sound chamber when the cassette is inserted into the camera recess 5, and facilitate location of the film 7 in the required sinuous curve. An alternative arrangement is shown in Fig. 2, in which the film passes below a roller 24 and above a roller 22. Roller 22 is carried at the end of an arm 21 pivoted on an axle 26. Either by closing camera lid 4 or by any other suitable means roller 22 is pivoted from an inactive position (as shown in broken line) into engagement with the film, lifting it clear of the edge 26 of the slot through which it passes back to the dark chamber. In Fig. 3 (not shown) the same lifting effect is obtained by an eccentric wheel (31), and in Fig. 4 (not shown) by a narrow passage formed between blocks 41 and 42.
Patent GB-886428-A (GB)
Title: New hydrazide derivatives and processes for their manufacture
IPC: C07D317/70
Filed: 1959-08-20
Abstract: The invention comprises compounds of the general formula <FORM:0886428/IV (b)/1> wherein R1 denotes a hydrogen atom or an alkyl group, R2 a hydrogen atom or an alkyl cycloalkyl, aryl or aralkyl group and R the radical of one of the two epimeric podophyllic acids of the empirical formula C22H23O8 and the preparation thereof by (a) reducing a compound of the general formula <FORM:0886428/IV (b)/2> at the -C=N double bond; (b) reacting a podophyllic acid hydrazide of the formula R.NH.NH2 with an alkylating agent of the formula <FORM:0886428/IV (b)/3> wherein X is a halogen atom or a radical of a sulpho or alkyl sulphuric acid; (c) reacting podophyllotoxin or picropodophyllin with a hydrazine of the formula <FORM:0886428/IV (b)/4> and (d) reacting a hydrazide of the formula R.NH.NH2 with a carbonyl compound of the formula <FORM:0886428/IV (b)/5> with simultaneous reduction of the -C=N double bond. Specification 886,427 is referred to.
Patent GB-711383-A (GB)
Title: Improvements relating to handle propelled suction cleaners
IPC: A47L9/14
Filed: 1951-12-06
Abstract: 711,383. Suction cleaner filter bags. HOOVER, Ltd. Dec. 6, 1951 [Dec. 12, 1950; Dec. 12, 1950], No. 28594/51. Classes 8 (1) and 8 (2). The inlet 47, Fig. 2, of the filter bag 46 of a handle propelled fan suction cleaner is clamped around an adapter 18 connected to the fan exhaust duct 15, Fig. 3, by means which are automatically engaged when the adapter 18 is moved to a position adjacent the handle 16, and the adapter is retained in this position so as to pivot with the handle. The handle 16 is formed with a bail 24 having one arm 25 seated in a bearing 26 and the other arm journaled on a pivot pin 21 carried by one limb 19 of the adapter 18 which carries a second limb 20 around which the filter bag neck is clamped by engagement of a rubber pad 53 at one end of a leaf spring 52 secured to the handle bail 24 with a cushioned recess 50 into which the bag neck is gathered after first being located by a recess 48 and an adapter projection 49. The adapter and hence the bag 46 are held adjacent the handle 16 so as to pivot therewith about the common pin 21 by a counterbalancing torsion spring 34 the free end 33 of which normally engages a sliding detent 29 carried by the adapter but encounters a fixed stop 36 just before the handle reaches a vertical storage position whereupon the adapter is freed and on moving the latter away---from the handle the detent 29 is shifted clear of the spring end 33 by a cam 45 carried by the bail 24 to assume a horizontal filter-bag-renewing position. A latch spring 55 normally engages the rear edge of a slider bridge 30 and holds the adapter 18 up to the handle, and the latter is locked when in the storage position by the engagement in a notch 42 of a back sector 43 of a detent 41 on a footoperated lever 38. The bag 46 which is of paper has an appearance cover 51. In a modification the counterbalancing spring acts directly between the cleaner body and the handle in the conventional manner and the adapter is held adjacent the handle by a detent carried thereby and engaging a recess in the adapter through an opening in the neck of the filter.
Patent GB-482314-A (GB)
Title: Improvements in frames for holding mirrors, pictures and the like
IPC: A47G1/24
Filed: 1936-10-21
Abstract: 482,314. Stands for mirrors &c. WOLF, W. Oct. 21, 1936, No. 28639. [Class 52 (v)] A device for holding and supportingmirrors, pictures &c. comprises two frame members a, b connected together by channel - shaped clips c which are adapted to hold the mirror &c. f in such a manner that one or both of the frame members can be turned down to form a strut or support. As shown the mirror is slidable in the clips c to which the U-shaped frame members are pivoted and is supported at the bottom by an additional channel-shaped clip e. One of the frame members may be rigidly attached to or integral with the clips. The frame may be made in various shapes, e.g. oval, circular or triangular and one of the frame members may be openended.
Patent GB-302453-A (GB)
Title: Means and apparatus for holding up motor road traffic
IPC: E01F13/12
Filed: 1927-10-28
Abstract: 302,453. Marchmont, D. H. Oct. 28, 1927. Signs, supporting and securing. - An expansible spiked mat or carpet of lattice construction is placed on a road surface to puncture the tyres of a motor vehicle, and thereby arrest the vehicle if the driver attempts to pass a, police barrier. In the form shown, strips L having spikes L<2> are housed in a box B and together with a " stop " sign S form a portable unit. On release of the lid C, the reflecting sign S assumes the position shown and the sides of the box spring open to permit the strips L to be pulled out to the desired width by means of handles L<1>. The limits of the barrier are shown bv double-sided ruby reflectors R hinged to the lattice. The lattice conforms to the camber of the road and may be passed on to a footpath.
Patent GB-1149920-A (GB)
Title: Vehicle headlight
IPC: F21S8/10
Filed: 1966-06-27
Abstract: 1,149,920. Vehicle headlamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 June, 1966 [30 June, 1965], No. 28720/66. Heading F4R. [Also in Division H1] A vehicle headlamp comprises a parabolic reflector 11 and an incandescent lamp the filament 42 of which is arranged with its axis along the axis of the reflector but beyond the focal point F11 and the envelope of which is tubular with the axis at least 15 degrees to the axis of the reflector. The lamp is surrounded by a screen 45 extending up to the level of the axis of the reflector. In a modification, the screen may be replaced by a light impervious layer on the bulb wall. If an asymmetric beam is required one side of the screen may be modified by removal of a segment of the upper rim. The lower half of the reflector may co-operate with a further filament (e.g. to produce a main beam) and may have a form which is different from or its axis displaced from that of the upper half. In another modification, the lower half of the reflector is omitted, no screen being then needed for the lamp bulb. The upper half of the reflector may have a small downward continuation to produce an asymmetric beam. The bulb may then be at right angles to the axis of the reflector. The bottom of the reflector may be closed by a plate.
Patent GB-603800-A (GB)
Title: Stapling machine
IPC: B25C5/10
Filed: 1945-10-30
Abstract: 603,800. Stapling-machines. GOODMAN, L. L., VANDERVIEREN, F. A. J., (trading as GOODMAN & VANDERVIEREN), and VANDERVIEREN, A. A. Oct. 30, 1945, No. 28738. [Class 89(iii)] In a desk-type stapling-machine the plunger a is raised by a lever g, a single link l and a single subordinate lever n; and is forced downwards by the spring c. The lever g is pivoted to the main frame r by a pivot k and is connected to the subordinate lever n by the link l. The lever n is pivoted to the main frame by a pivot q and a slot p. Raising the lever g against the action of the spring h raises the lever n and plunger a which is engaged by the nose of the lever n. Further and final upward movement of the lever g disengages the lever n from the base of the plunger a and releases the latter to drive a staple. On the downward return movement of the lever g the slot p slides on the pivot q. shortening the length of the lever n, and a spring s turns the lever n so that it reengages the base of the plunger a.
Patent GB-871975-A (GB)
Title: Electric switches and contact arrangements therefor
IPC: H01H43/00
Filed: 1958-09-18
Abstract: 871,975. Switch contacts; electromagnetic interrupters. MASON ELECTRIC CORPORATION. Sept. 18, 1958 [Feb. 3, 1958], No. 28832/59. Divided out of 871,973. Drawings to Specification. Class 38 (5). The Specification comprises the switch described with reference to Figs. 1, 2, 4, 10 and 11 of Specification 871,973. Specifications 837,433, 837,434, 837,435 and 871,974 also are referred to.
Patent GB-1404546-A (GB)
Title: Process for purifying commercial-grade phosphoric acid by extraction
IPC: C01B25/46
Filed: 1973-06-19
Abstract: 1404546 Purifying phosphonic acid R A OETKER [trading as CHEMISCHE FABRIK BUDENHEIM RUDOLF A OETKER] 19 June 1973 [19 June 1972] 28935/73 Heading C1A H 3 PO 4  is purified by contacting a mixture of the acid and a water miscible organic solvent with a cone. aq. soln. of an inorganic salt and/or hydroxide, to form an H 3 PO 4 -containing organic phase and an impurity-containing inorganic phase, and then following separation of the two phases, the H 3 PO 4  is recovered from the organic phase by distilling off the solvent. The inorganic salt may be an acid phosphate, carbonate, sulphate or borate of Mg, Zn, Ca or Al. The salt or hydroxide may be added in solid form to the organic phase. The organic solvent may be a ketone and/or an aliphatic alcohol, preferably isopropanol. The purified acid/ organic phase may be contacted with a strong acid cation exchanger in the H<SP>+</SP> form to remove inorganic phase ions prior to separation of the organic phase. The acid may be wet-process, a pickle liquor or electrolytic.
Patent GB-1080743-A (GB)
Title: Process for the preparation of substituted 5,6-dihydro-ª‡-pyrones
IPC: C07D309/38
Filed: 1964-07-14
Abstract: 5,6-Dihydro-a -pyrones of the Formula (I), wherein R represents an alkyl group, R2, R3, R4 and R5, which may be the same or different, represent hydrogen atoms or alkyl, alkoxy, hydroxyalkyl, hydroxy, amino or sulpho groups, or any two adjacent radicals can together form an alkylenedioxy and R6 represents an alkylene group, are prepared by hydrogenating an a -pyrone of the Formula (II), wherein R7 represents an alkylene group or a divalent aliphatic hydrocarbon group containing an olefinic bond, in the presence of acetic acid and of a noble metal catalyst. <FORM:1080743/C2/1> <FORM:1080743/C2/2>
Patent GB-439528-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H04B1/14
Filed: 1934-10-10
Abstract: 439,528. Wireless receiving-apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Radio Corporation of America; 570, Lexington Avenue, New York, U.S.A.) Oct. 10, 1934, No. 29049. [Class 40 (v)] In a wireless receiver switching is provided for operation as a double sideband receiver with high selectivity or as a single sideband receiver with high fidelity and means are provided to ensure appropriate tuning. The Figure shows a superheterodyne receiver embodying a high frequency amplifier 1 frequency changer 3 and intermediate frequency amplifier 5 in which, with the switches 23, 55, 77 in the positions shown, high fidelity reception is obtained since the tuned circuits respond to the whole of one sideband. Operation of the switches gives high selectivity with some sideband cutting. The muting of the amplifier 5 is through a highly selective circuit and amplifying valves 81, 113, 117 which with high fidelity ensure tuning so that the received carrier lies at the side of the band of frequencies received. Delayed automatic volume control is effected by rectifier 83. In television reception increased gain is obtained by receiving only one sideband. Detuning may be effected by switched inductances, condensers, or couplings.
Patent GB-1425249-A (GB)
Title: Ultrasonic testing apparatus
IPC: G01N29/22
Filed: 1973-06-19
Abstract: 1425249 Ultrasonic inspection devices; ultrasonic probes BRITISH STEEL CORP 18 June 1974 [19 June 1973] 29052/73 Headings H4D and H4J An ultrasonic probe for testing a tubular article comprises a transmitting transducer supported on a pad. The pad has a sound absorbent insert in that surface nearest the test article, for absorbing any surface waves generated on the article, and the probe construction is such as to restrict the beam width so as to limit the range of wave incidence angles at the article and hence inhibit surface wave generation. In the Fig. 1 embodiment, probes 1 and 2 are equidistant from a tube weld 3 to be inspected for flaws and are initially positioned by comparing probe signals from calibration notches machined in a reference tube. Each probe comprises a piezoelectric element 11 embedded in epoxy resin having a clear zone 13, for ultrasonic wave propagation, and a chalk-loaded absorption zone 14 to restrict the beam width and direction. Residual surface waves are damped by a nylon insert 9 in contoured pad 7. Inlet and outlet passages 15, 16 for water couplant are provided. The probes transmit alternately, and each receives signals resulting from pulses transmitted by itself or by the other probe.. The signal received by the non-transmitting probe is used to monitor the coupling efficiency.
Patent GB-285570-A (GB)
Title: Improvements in amusement apparatus
IPC: A63B21/00
Filed: 1926-11-18
Abstract: 285,570. Brown, N. Nov. 18, 1926. No Patent granted (Sealing fee not paid). Dynamometers for testing physical strength. - A heavy truck mounted on an inclined track is impelled up the track by a sudden push the height attained denoting the strength of the pusher. A pair of inverted L-shaped rails a, bare secured to the horizontal members c of a series of triangular frames d connected together at their angles by longitudinal members e, f, g so as to form sections h, i, j of an inclined track supported by legs l, m, n at the ends. The gradient of the track becomes increasingly steep towards the upper end. A heavy truck carrying a cannon g is inserted on the track, and is provided with projections engaging under the flanges of the rails a, b to prevent the truck leaving the track. The truck is provided with electric-switches 14 at different points which on the truck passing them upwardly cause adjacent lamps 10 to light up, the switches being broken on the return of the truck. When the truck enters the castle 7 at the top a cap carried by the cannon engages a firing pin 9. At the lower end of the track is provided with a buffer connected to the plunger of an air-pump dash pot having an adjustable outlet. The truck will preferably be provided with a disc having ratchet teeth and pressed against one or more wheels to rotate with them on the upward journey but to be held by the ratchet on the return journev. The firing pin may also be mounted on a buffer.
Patent GB-872672-A (GB)
Title: Container
IPC: B65D21/02
Filed: 1959-08-26
Abstract: 872,672. Containers ; boxes. METAL CONTAINERS Ltd. Aug. 26, 1959 [Aug. 26, 1958], No. 29174/59. Drawings to Specification. Classes 18 and 66. A container that utilises all available space and prevents rolling when a number are stacked together, comprises a side wall and two end walls permanently or non-permanently secured thereto, the side wall in at least four transverse sections substantially equidistant from one another forming a polygon having an even number of sides of substantially equal length consisting of convex and concave arcs with equal radii of curvature. The concave and convex arcs alternate and the centres of the convex arcs are located within or on the circumscribing circle of the polygon, at least two of said at least four transverse sections being angularly displaced 360 degrees divided by the number of sides of the polygon, about the central longitudinal axis of the container, relatively to the other two transverse sections at least. Preferably, the centres of the arcs constituting the convex sides are located in the axis of the body and two of the four transverse sections referred to are located at the end walls. The polygon may be a quadrangle, particularly a square, but is preferably a hexagon. A filling and pouring hole closed by a bung may be provided in one end wall as close to one corner as possible and a diametrically opposed vent hole, also closed by a bung, may also be provided. If desired, a filling or pouring hole and/or a vent hole or an accessory, such as a handle, can be located in one of the concave portions of the side wall between two adjacent equally positioned crosssections whereby the accessory and /or the bungs for the holes are located in a protected position and do not form obstacles against rolling.
Patent GB-383032-A (GB)
Title: Improvements in or relating to machines for the production of tubular woven fabrics
IPC: D03D37/00
Filed: 1931-10-22
Abstract: 383,032. Circular looms. HART, C., 32, Church Street, Edmonton, London. Oct. 22, 1931, No. 29376. [Class 142 (ii).] In a circular loom for covering an electric cable &c. 29 the shed is normal to the loom axis and the warps 35 pass through eyes in shedding levers 31 which are operated by links 38 from cranks &c. 40 on shafts 42 which are radial or substantially radial to the loom axis and are intermittently rotated 180‹ and then locked by fingers 44, 45 on the shafts 42 and co-operating gaps 48 and rollers 49 in and on a cam ring &c. 47 concentric with the loom axis. Each shuttle 20 is guided in a groove 19a and is always in gear with two or more drive pinions 25.
Patent GB-1085449-A (GB)
Title: Improvements relating to light-sensitive heat-developable diazotype compositions
IPC: G03C1/58
Filed: 1965-07-12
Abstract: 1,085,449. Photo-sensitive materials. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 12, 1965 [Aug.17, 1964], No.29383/65. Heading G2C. A photo-sensitive, heat-developable diazotype composition comprises a diazonium salt and a compound of formula: wherein R 1  and R 2  are either a cyano group, a -CONHR 6  or a -COOR 7  group and R 3  to R 7  are hydrogen, an alkyl group with 1 to 8 carbon atoms which may be substituted or an aryl group which may be substituted. The composition may be coated on a support or be used as a selfsupporting film if a resin is added. The compositi is imagewise exposed to light and then heated to generate a coupler from the compound by dehydration or loss of an alcohol or phenol to produce a dye image. The composition may also contain an alkali-generator such as thiourea or cyanoguanidine or an acid such as citraconic acid. The compound may also act as a pH modifier if R 1  is -COOH and R 2  is -COOH, -CONHR 6  or -CN as on heating these compounds decarboxylate or cyclise.
Patent GB-771999-A (GB)
Title: Improvements relating to stapling devices
Inventor: GILBERT HENRY ERNEST
IPC: B25C5/16
Filed: 1954-03-19
Abstract: 771,999. Stapling. OFREX, Ltd. March 18, 1955 [March 19, 1954], No. 29401/56. Divided out of 771,998. Class 89 (3). A staple feeder means 10 is retained in position in a stapling device 1 by means of a clip 13 having opposed resilient members formed with detents 15 which are adapted to engage opposed notches 16 in a staple-carrying element 4. The sides of the clip are extended to form wings 13<SP>2</SP> which must both be simultaneously pressed inwardly to free the detents from the notches in order to release the feeder means. The stapling device described is identical to that forming the subject matter of Specification 771,998 from which the present Specification is divided.
Patent GB-1320581-A (GB)
Title: Method and means for monitoring product quality in a plastics injection-moulding machine
IPC: B22D17/32
Filed: 1970-06-17
Abstract: 1320581 Injection-moulding NEW BRITAIN MACHINE CO 17 June 1970 [15 July 1969] 29421/70 Heading B5A An injection-moulding machine comprises an injection-mould, plasticizing means and a reciprocable injection mechanism responsive to control means to vary the injection pressure, pressure-sensitive means exposed to the plasticized material and feedback control means connecting the pressure-sensitive means to the control means the feedback control means being responsive to the output of the pressure-sensitive means corresponding to the peak material pressure. As shown in Fig. 1, the apparatus comprises an axially reciprocable screw 13 driven forwardly by hydraulic cylinder 18 and then rearwardly by the material fed forwardly by the screw, according to a programme 20 between limit switches 26, 29 and through fluid pressure control 23. Transducer 33 and/or 34 operate switch 35 which may form a bridge circuit with 36. Relay 50 is controlled by programme 20 to gate amplifier 37 to a peakstorage circuit 52 until read out by 53 also as instructed by programme 20. No correction is made if the signal is between limits of thresholds 55, 56, but which otherwise adjust relief-setting means 40 of relief valve 41 by means of solenoids 59, 60 and amplifiers 58, 61. Valve 41 controls the high pressure line 42 to fluid pressure control 23. In an alternative embodiment, (Fig. 2, not shown) the signal from 53 is compared with a reference signal from a signal generator (71) by a differential amplifier (73) to control the relief valve 41.
Patent GB-426218-A (GB)
Title: Improvements relating to solidifying carbon dioxide
IPC: C01B32/55
Filed: 1933-10-24
Abstract: 426,218. Solidifying carbon dioxide. MAIURI REFRIGERATION PATENTS, Ltd., and MAIURI, G., Bush House, Aldwych, London. Oct. 24, 1933, No. 29485. [Class 8 (ii)] Carbon dioxide is solidified in a mould a to which it is admitted at a pressure above the triple point pressure and a temperature above the liquefaction temperature corresponding to the actual pressure and the temperature is caused to diminish downwards in the mould. As shown multiple moulds are used, side by side, cooled by sectional jackets e<1>, e<2>. e<3> to which liquid ammonia is supplied by a pipe f through a regulating valve, the ammonia rising in each jacket evaporating and overflowing through pipes i, k to the lower jackets, the lowest being under vacuum produced, e.g. by the absorber of a refrigerating machine.
Patent GB-304403-A (GB)
Title: Improvements in and relating to the hydrogenation of naphthalene
IPC: C07C5/10
Filed: 1927-11-04
Abstract: 304,403. Technical Research Works, Ltd., and Lush, E. J. Nov. 4, 1927. Hydrogenized organic compounds, catalytic production of.-By effecting the catalytic hydrogenation of naphthalene in the vapour phase under conditions precluding any condensation, pure tetrahydronaphthalene is obtained. A nickel catalyst, preferably that described in Specification 203,218, is used.