baber/WOPTO huggingface dataset:
Patent GB-496962-A (GB)
Title: Improvements in or relating to shutter release mechanism of photographic cameras
IPC: G03B9/58
Filed: 1937-06-08
Abstract: 496,962. Shutter-locking devices for photographic folding cameras. KODAK, Ltd. June 8, 1937, No. 15924. Convention date, June 17, 1936. [Class 98 (i)] A release member on the body of a camera is connected to the shutter by linkage which includes a locking device to prevent actuation of the shutter release prior to the setting of the shutter. A rod 16 is mounted in a bracket 10 for sliding transversely against the action of a spring 22. A slide member 17 is connected to the rod 16 and carries an arm 18, connected to a forked lug 20 on the release 21. A shutter S is pivoted on supports 27 which are themselves pivoted on brackets 24 on the camera bed 12. Levers 30 are pivotally connected at 31 to the camera body and at 32 to the lower ends of supports 27, and assist in the collapsing of the camera. On the leg of the slide member 17, there is pivoted at 33 an angle shaped lever 34, one arm 35 of which extends forwardly of the camera bed and is provided with an upturned yoke 36. To the yoke end 36 is pivoted at 51 an actuating member 37 which abuts the shutter trigger 39 when the release 21 is pressed. Pivoted at 52 to the upper end of member 37 is a finger 40 which engages the setting lever 42 when it is not in its set position. The other arm 43 of the lever 34 is held parallel to the bed by a spring 44, so that its end clears a stop 48. If the lever 42 has not been moved to set the shutter and the release 21 is pressed, the edge 41 engages the lever 42 and causes the lever 34 to rotate about its pivot 33 and come into engagement with the stop 48 whereby movement of the release 21 is prevented. When the shutter is set, the actuating member 37 can be freely moved to engage the lever 39. The arms 37, 40 are fitted with springs 53, 54 round the pivots so that they are automatically brought to the operative position. Since the pivots 51, 52 are in line with the pivots 26, 29 of the shutter mounting, the actuating portion of the shutter folds down with the shutter mechanism.
Patent GB-383571-A (GB)
Title: Illumination for aerodromes, especially emergency landing places
IPC: B64F1/20
Filed: 1932-06-06
Abstract: 383,571. Illuminating aircraft landing grounds. SEYDEL, M., Bublitz, Pommern, Germany. June 6, 1932, No. 16003. [Class 75 (iv).] In a system of lighting for aircraft landing grounds, the length of the ground and the direction of the prevailing wind is indicated by means of a movable searchlight 8 adapted to project light on to a plurality of upwardly reflecting reflectors 1 arranged in rows corresponding to the directions of a compass card. Each reflector 1 may comprise oppositely directed surfaces 2, 3, whilst the central reflector 4 may be multisided according to the number of directions it is possible to illuminate. The reflecting surfaces 11, 12 at the ends of the rows may be coloured green and red respectively, and the reflectors may be so disposed as to produce the effect of illuminated arrows. Light from the searchlight may be directed on to a reflector in a hollow by means of an auxiliary metal reflector enclosed in a hemispherical glass cover. In the form shown in Fig. 4, the reflecting surfaces 18 are fixed on a column 19 which is mounted on the inside of the hinged lid 20 of a box 21 embedded in the ground, a peg 22 being arranged to support the column in vertical position.
Patent GB-1154888-A (GB)
Title: Improvements in method and apparatus for Treating Solid Particles
Inventor: STEPHANOFF NICHOLAS NICHOLAEVI
IPC: B02C19/06
Filed: 1967-04-07
Abstract: 1,154,888. Jet mills; agitating by gas currents; coating apparatus. FLUID ENERGY PROCESSING & EQUIPMENT CO. 7 April 1967, No. 16018/67. Headings B1C, B2A and B2L [Also in Division F4] One or more fluid inlet nozzles 52, of a jet mill are adjustable to selected angular and directional positions. The mill comprises a feed inlet 40 to an inlet chamber 12 which is connected with a classification chamber 16 having an outlet 20 and a return section 18 to the inlet chamber 12. A separate feed means 60 permits insertion of a liquid spray for coating or chemical reactions. A lower nozzle 44 leads from a secondary separator 26 to an after-blender 68. Pressure assisted feed means 74, 78 are provided for additional additives. Flow diverting nozzles 28, 30 direct fluid towards the top and bottom of the entrance to duct 20 and a nozzle 36 directs fluid down the section 18 to by-pass the duct 20. By selective activation and variation of pressure to the nozzles the larger particles can be directed to the duct 20 or finer particles into the section 18. In operation larger particles can be recirculated from the secondary separator 26 via the conduit 42 by pressurising the nozzle 50. The apparatus may be used for grinding, chemical reaction, coating, or dispersing agglomerates, mixing, blending, hydration and dehydration of a large number of specified substances. When grinding, increasing the angle of the nozzles produces in particles sharper edges, whereas, by reversing some nozzles against the main stream, shattered and abraded particles in a wide size range may be obtained.
Patent GB-1100102-A (GB)
Title: Fuel cell electrode
IPC: H01M4/94
Filed: 1965-04-14
Abstract: 1,100,102. Fuel cells. FUJI DENKISEIZO KABUSHIKI KAISHA and NIPPON JUNSUISO KABUSHIKI KAISHA. 14 April, 1965 [25 April, 1964], No. 16055/65. Heading H1B. A hydrogen diffusion membrane electrode for a fuel cell is made from the alloys disclosed in Specification 964,532, the alloy containing at least 60% of palladium. In a fuel cell described, the hydrogen permeable membrane electrode comprises a hollow cylinder surrounded by and in contact with a tubular semi-solid electrolyte member made of magnesium oxide and a molten mixture of alkali carbonates. The oxygen electrode comprises a silver gauze wound around the electrolyte member.
Patent GB-545730-A (GB)
Title: Improvements in or relating to dynamo electric instruments
IPC: H02K1/16
Filed: 1940-11-04
Abstract: 545,730. Dynamo-electric repeater instruments. SMITH & SONS (MOTOR ACCESSORIES), Ltd., S., MOSS, E. B., and KLEPP, E. C. Nov. 4, 1940, No. 16081. Addition to 537,833, [Group XXXVIII] Drawings to Specification. [Class 35] [Also in Group XXXVIII] In the stator core of the repeater instrument described in the parent Specification, the externally open slots for the windings instead of being closed by a cylinder of magnetic material they are closed by a winding of iron wire or strip which effects more intimate contact with the core. The core may be built up of layers of stampings made from silicon-iron alloys alternating with stampings of nickel-iron alloy.
Patent GB-1520202-A (GB)
Title: Load cell
IPC: G01L1/22
Filed: 1977-04-19
Abstract: 1520202 Load cells INSTITUT AVTOMATIKI 19 April 1977 16219/77 Heading G1N A resistance strain gauge load cell comprises a resilient support member 2, Fig. 1, located inside a circular housing 1, resting on a ring of balls 8 supported by an internal flange, the member 2 having a central boss 3 on the upper surface to which the load P is applied, and a number of fingers 5 on the lower surface spaced symmetrically on two radii, Fig. 2, and carrying a resistance strain gauge wire 7. In another embodiment, Fig. 3, the support member 2 is ring shaped.
Patent GB-1297029-A (GB)
IPC: H01H43/12
Filed: 1969-04-06
Abstract: 1297029 Time switehes; retractive snapaction switches MALLORY TIMERS Ltd 6 April 1970 [4 April 1969 (2)] 16233/70 Heading H1N A programme timer, for a domestic clothes drying machine, for example, comprising at least one rotary cam-operated electrical switch is arranged such that axial movement of the cam-shaft, or a portion thereof, actuates a snap switch, said snap switch comprising a contact blade fixed at one end and divided by two longitudinal slots into a central portion and two side portions, each side portion being formed with a depression to render the blade snap-acting, and actuating means coupling the cam-shaft to the central portion of the blade so that axial movement of the cam-shaft causes engagement or disengagement of a contact on the free end of the blade and a second contact. In a first embodiment, as shown, a synchronous motor 46 drives, through gearing 48, a gear 40 meshing with gear 36 integral with a control cam disc 34 loosely journalled on a shaft 20. Cam 34 and programme cams 1 to 7, the latter being keyed to shaft 20, actuate switch blades (such as 118, 118<SP>1</SP>, Fig. 1, not shown). The continuously driven cam 34 controls intermittent drive to the cams 1 to 7 by selectively energizing a solenoid 80 whose plunger 102 rocks lever 86 to lift gear 88 (Fig. 3) thereby coupling motor-driven gear 100 to gears 78, and thus driving pinion 105 which is in mesh with gear 106 (Fig. 1) connected to spring-washer clutch 108 which frictionally drives shaft 20 and hence cams 1 to 7. The switch blades (118, 118<SP>1</SP>) are provided with back-stops (126) such that they do not ride on the falls of the cams thereby reducing wear. Axial movement of shaft 20 rocks a lever 58 whose forked ends form jaws 62, gripping a washer 54 on shaft 20, and 62<SP>1</SP> gripping the centre of a trifurcated blade spring 60 to open and close contacts (72, 74, Fig. 4, not shown) in the supply circuit of motor 46. In a second embodiment (Fig. 5, not shown) an additional motor (84) is energized to drive the programme cams instead of using a solenoid clutch mechanism. Another embodiment (Figs. 6 to 9, not shown) has a shaft divided into two portions (234, 236) and a pull moves one portion only to actuate the snap switch; while in a modification (Fig. 10, not shown) a push on the shaft causes relative axial movement to actuate the snap switch. The modification of Fig. 10 also has the rocker arm (288) extended outside the timer casing for alternative actuation by external means such as a solenoid (not shown).
Patent GB-728463-A (GB)
Title: Microwave transmission system and filter coupled thereto
IPC: H01P1/203
Filed: 1952-06-27
Abstract: 728,463. Microwave electric filters. STANDARD TELEPHONES & CABLES, Ltd. June 27, 1952 [July 5, 1951], No. 16254/52. Class 40 (8). A microwave transmission system comprises a "line-above-ground" system 1a, 2a, Fig. 1, to which is coupled a quarter-wave coupled type of coaxial filter comprising an inner conductor 1 and an outer conductor 2, subdivided by diaphragms 6 to 11, the coupling sections defined by diaphragms 7, 8 and 9, 10 being each approximately a quarter wavelength long electrically. The diaphragms comprise discs, Fig. 2, having a large sector opening 12 which, for a frequency of 4700 megacycles may be 216 degrees. Adjustable screws 13, 14, 15 are provided to tune the cavities. The transmission system is coupled to the coaxial line 1b and 2b for launching the microwaves, the outer conductors 2 and 26 being each countersunk with respect to the upper surface of the ground conductor 2a to provide for impedance matching. A directly coupled cavity type of coaxial filter is described with reference to Figs. 3 and 4 (not shown); other methods of coupling, in particular to systems in the form of a printed circuit, are described (Figs. 5 and 6, not shown) in which the diaphragm may be an annular window in the form of a disc; it may also be a plurality of posts radially disposed between the centre and outer conductors. Specifications 704,050 and 708,601 are referred to.
Patent GB-401996-A (GB)
Title: Innovation in the carriage stop system for the formation of margins in typewriters
IPC: B41J29/50
Filed: 1933-06-06
Abstract: 401,996. Typewriters. PAILLARD ET CIE SOC. ANON., E., Rue du Nord, Yverdon, Vaud, Switzerland.-(Assignees of Prezioso, G. ; Rue du Nord, Yverdon, Vaud, Switzerland.) June 6, 1933, No. 16296. Convention date, June 7, 1932. [Class 100 (iv).] Line - locking devices; margin stops.-A lever 3, pivoted on the framework 1 and co-operating with margin and line-locking stops 12, 12<1> on the carriage, projects through a slot 4, and is provided with a pivoted tooth 6 for engaging a key-operated member 13. When the margin stop engages the lever, it is obstructed by the edge 11 of the slot, and the carriage is arrested. When the line-locking stop engages the lever, the tooth obstructs the key-operated member, and the keys are locked. The lever and tooth are connected to springs 9, 8 respectively.
Patent GB-594445-A (GB)
Title: Magneto
IPC: F02P1/00
Filed: 1945-06-26
Abstract: 594,445. Ignition magnetos. BENDIX AVIATION CORPORATION. June 26, 1945, No. 16310. Convention date, April 24, 1944. [Class 35] A magneto is coupled to the engine by teeth or splines on the rotor shaft engaging the driving member, the number of such teeth being indivisible by the number of poles of the rotary magnet. In the form shown, each magnet rotor 16, 17 has four poles and each co-operates with two diametrically opposite coils 27, 29 respectively and as the magnet poles are displaced 45 degrees eight double sparks are obtainable per revolution. The said displacement is adjustable. The shaft 11 is driven by the frictional engagement of sleeve 31 therewith, the grip being increased by press - À ing the conical end of sleeve 32, gear driven from the engine, on to sleeve 31 by tightening nut 35. Rough timing adjustment is obtained by adjusting toothed sleeve 32 and a finer adjustment by rocking the stator which has arcuate supporting slots. A plunger under spring pressure can engage appropriate notches in the shaft to facilitate the adjustment. For some ignition systems the armature windings would be confined to primary coils. Specifications 535,302, 548,825 and U.S.A. Specification 2,255,477 are referred to.
Patent GB-217059-A (GB)
Title: Improvements in and relating to pen, pencil and the like clips
IPC: B43K23/00
Filed: 1923-06-23
Abstract: 217,059. Topping, R., and Topping, W. H. June 23, 1923. Pockets, retaining pens and pencils in; attaching pens and pencils to wearing-apparel-A clip adapted for either of these purposes comprises a brooch attachment-member a provided with one or more spring clips e, f, and with a ring j having parts above and below the brooch to hold the device in erect position.
Patent GB-753278-A (GB)
Title: Cigarette with filter
IPC: A24D1/04
Filed: 1954-06-03
Abstract: 753,278. Fitter-tip cigarettes. BARNETT, J. M. June 3, 1954, No. 16382/54. Class 130. A paper cylinder 2 with apertured recessed end members 3, 6 having the space between them filled by silica gel, carbon or other filtering granules 5 is incorporated as a unit in a cigarette by applying an adherent cardboard &c., band around the cylinder 2 and the end of an abutting cigarette or, as shown, by wrapping the cylinder 2 and tobacco 1 in a cigarette paper a. The member 3 has radial slots and, with the cylinder 2, initially forms a receptacle for the granules 5 later sealed by applying the member 6 having circular holes.
Patent GB-551201-A (GB)
Title: Improvements in or relating to means for playing a game
IPC: A63F3/00
Filed: 1941-12-19
Abstract: 551,201. Board games. TUCK & SONS, Ltd., R., and GEORGE, R. F. Dec. 19, 1941, No. 16388. [Class 132 (ii)] Means for playing a board game wherein pieces are moved in accordance with the throw of a die comprise a board, Fig. 1, having a sequence of numbered squares, a series of the terminal squares also being numbered in the reverse direction, some of the squares having markings illustrating experiences of an airman who has descended on the sea and indicating movements of the pieces to be effected without a throw of the die, and three pieces, Figs. 2, 3 and 4. for each player one to represent an airman, a second a search aircraft and a third a rescue launch. The airman piece is started from the first square and at later stages the pieces representing the search aircraft and the rescue launch are started from the last square with the object of rescuing the airman.
Patent GB-883673-A (GB)
Title: Preparation of sulphur halogen compounds
Inventor: ROBERTS HUGH LEITHEAD
IPC: C01B17/46
Filed: 1959-05-13
Abstract: Sulphur pentafluoride chloride, together with sulphur tetra-, and hexa-, fluorides, is produced by reacting chlorine trifluoride and elementary sulphur in the absence of moisture.  Temperature may be 15 DEG -105 DEG C. and commercial lump S, as a thin layer in copper trays or loosely packed in copper tubes, may be reacted with ClF3 diluted 3- or 4-fold with inert gas, e.g. dry N2. Gas products pass through an ice-cooled trap to remove S chlorides, mainly S2Cl2, and a solid CO2-cooled trap to condense remainder.  The gas mixture from the second trap may be contacted with acidified ferrous sulphate solution to absorb traces of Cl2 and hydrolyse SF4 to SO2, which is then absorbed in acidified sodium dichromate solution. Otherwise, SF4 may be removed as solid double fluoride BF3 SF4, from which SF4 may be recovered by passing vapour of BF3SF4 at 80 DEG -90 DEG  C. over sodium fluoride to remove BF3.  SF5Cl and SF6 remaining may be separated by fractional distillation, or by gas chromatography with a column of polychlorotrifluoroethylene. This column may be used to separate all the reaction products. Alternatively, SF4 may be converted in the gas mixture to more SF5Cl as in Specification 875,209.
Patent GB-704863-A (GB)
Title: Improvements in or relating to transmission apparatus including a unidirectional transmission device
Inventor: GILBERT RONALD ALBERT
IPC: F16D41/00
Filed: 1950-06-30
Abstract: 704,863. Turbine plant. NAPIER & SON, Ltd., D. Aug. 8, 1951 [June 30, 1950], No. 16425/50. Class 110 (3). [Also in Groups XXIV and XXXIII] A propeller 2 is driven at high speeds, through gearing 3, by a turbine 5 and at low speeds, through gearing 7, by a turbine 11. A reversing turbine 6 is built as a unit with the turbine 5. The turbine 11 drives through a one-way clutch device 9 (see Group XXIV) which may be locked in a disengaged position during reverse drive.
Patent GB-409915-A (GB)
Title: Improved method of obtaining sensibly constant retroactive feedback in a thermionic detector
IPC: H04B1/16
Filed: 1933-06-09
Abstract: 409,915. Valve circuits for wireless reception. CROMWELL (SOUTHAMPTON), Ltd., and BROOKE, H. A., 32, Brinton's Terrace, Southampton. June 9, 1933, No. 16571. [Class 40 (v).] In an anode bend or leaky grid detector sensibly constant reaction is obtained by the provision of a choke in the anode circuit arranged to resonate at a frequency just below the band to be covered while the reaction coil is arranged to resonate at a frequency just above the band to be covered. The byepass condenser c preferably has a value ten times greater than the feed-back condenser e, while the inductance d and condenser e are designed with substantially high losses.
Patent GB-658995-A (GB)
Title: Improvements in potato peeling machines
Inventor: DAWSON DEREK ALAN
IPC: A47J17/18
Filed: 1948-06-21
Abstract: 658,995. Potato peelers. ELLIOTT BROS. (LONDON), Ltd. June 21, 1948, No. 16612. [Class 28(ii)] A potato peeler with rotary bottom is provided with means e.g. a displaceable helican rib 10 to guide and lift the bottom potatoes to the top so as to get more uniform peeling and less tendency to wear down some of the potatoes more than the others. The rib 10 overlies the bottom plate and may be fixed on the exit door 9 so that when opened the rib is clear of the abrasive bottom 2 which can then be lifted out. The guide may also be formed as inclined grooves in the wall of the container 1 or as projections on the wall. A vane 6 is fixed to the bottom plate 2 to sweep off the peelings from the well 5.
Patent GB-241261-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F1/16
Filed: 1924-07-11
Abstract: 241,261. Harries, W. D. July 11, 1924. Tobacco pipes are provided at the bottom of bowl with a funnel b leading to a detachable nicotine-receiving part or thimble f; the smoke is drawn through straight interconnected longitudinal cooling passages j, m, k and through a compartment s into the mouthpiece q, absorbent material g, t being provided in the thimble and in the compartment. The passages in the stem may be arranged in the same plane or in triangular formation, and at the front the passages k, m are connected by a cross passage n closed by a plug o, whereas at the rear the passages j, m are connected by a U-piece p in the compartment s. The mouthpiece g may have one passage or two or more divergent passages u. The stem d of the funnel b is perforated at h for the smoke to pass.
Patent GB-1178681-A (GB)
Title: Improvements in Methods for Measuring Group Delay Time
Inventor: ASZTALOS GYORGY
IPC: H04B3/46
Filed: 1967-04-14
Abstract: 1,178,681. Measuring group delay time. TAVKOZLESI KUTATO INTEZET. April 14, 1967 [April 16, 1964], No.16660/65. Heading G1U. Group delay time through a circuit at a particular frequency is measured by transmitting through the circuit at least one set of spaced signal sequences, f1, f2, f1, where f1, f2 represent the frequencies of the signals in each sequence, the sequence f2 commencing at an instant midway in the interval between the times at which two successive sequences f1 start, the group delay being determined from the time difference which exists, after the sequences have traversed the circuit, between the two periods between the commencement of the f1 signal sequences and the f2 sequence. The sequences are provided by a transmitter A incorporating a generator 1 controlled by a wobbulator 2 and switching circuit 3. After passage through the circuit X under test they are amplified and filtered at 4 and passed to control a pulse generator 5, which produces outputs at times corresponding to the received sequences. These pulses are applied to an evaluating circuit 6, where the time intervals between the fl and f2 sequences are determined and subtracted. The evaluated results may be applied directly to a meter M or to deflecting circuits 8 suitable for controlling an oscilliscope 10 or other plotting instrument 11. These circuits are synchronized to a frequency sweep of the sequence generator by circuit 9, which receives timing outputs from the evaluating circuit 6. The system may be provided with a reference channel 7 for comparing the behaviour of the unknown circuit with that of a standard, but the procedure of the invention is such that this is not necessary. The transmitter A may be operated to provide signal sequences varying in frequency, spacing, amplitude &c. in accordance with the requirements of a particular test, and further sequences at other frequencies f3 &c. may be inserted in the intervals between f1 sequences.
Patent GB-1267273-A (GB)
Title: Process for production of aliphatic acids
IPC: C07C51/00
Filed: 1969-03-31
Abstract: 1,267,273. Aliphatic carboxylic acids. ARMOUR INDUSTRIAL CHEMICAL CO. 31 March, 1969 [3 April, 1968], No. 16668/69. Heading C2C. Aliphatic carboxylic acids are prepared by reacting a terminally unsaturated non-conjugated substituted or unsubstituted linear α- olefine (2-20 C) or a monocyclic monounsaturated cyclic compound with a formate ion in the presence of free radicals, in a homogenous medium at 50 to 1000 p.s.i.g. at 0 to 160 C. The free radicals are produced by ultraviolet light irradiation, or by a chemical initiator, such as dialkyl peroxides or per esters and the formate ion, e.g. from alkali metal salts of formic acid is present in at least 5 mol/mol of unsaturated aliphatic compound. Examples describe the preparation of pelargonic acid from 1-octene using sodium formate and di-tert-butyl peroxide or by using ultra-violet irradiation; heptanoic acid from 1-hexene; 1,12-dodecanedioic acid from undecylenic acid; mixed linear acids of odd carbon number from ethylene; mixed linear methyl branched primary aliphatic acids with 4, 7, 10 and 13 C atoms from propylene; C 3  and C 5  fluorinated aliphatic acids from tetrafluoroethylene.