baber/WOPTO huggingface dataset:
Patent GB-865720-A (GB)
Title: Improvements in photographic colour couplers
IPC: G03C7/384
Filed: 1957-08-01
Abstract: 1-Methyl-3-[a -(4-a -(2, 4-di-t-amylphenoxy) butyramido phenoxy) acetamido]-5-pyrazolone is prepared by reacting 1-methyl-3-(4-aminophenoxyacetamido)-5-pyrazolone with a -(2, 4-di-t-amylphenoxy) butyryl chloride.  The same pyrazolone, the corresponding 1-n-hexyl-pyrazolone, 1-methyl-3-[g -(p-aminophenoxy) butyramido]-5-pyrazolone and 1-n-dodecyl-3-amino-5-pyrazolone are similarly reacted with 2, 4-di-t-amylphenoxyacetyl chloride. Similarly, 2, 4-di-n-amylphenoxy acetyl chloride is reacted with 1-n-hexyl- or 1-n-dodecyl-3-amino-5-pyrazolone, and m-(2, 4-di-n-amylphenoxy) acetamido benzoyl chloride is reacted with 1-n-dodecyl-3-amino-5-pyrazolone.  1-Methyl (or 1-n-hexyl)-3-(4-aminophenoxy acetamido)-5-pyrazolone is prepared by refluxing 1-methyl (or 1-n-hexyl)-3-amino-5- pyrazolone with p-nitrophenoxy acetyl chloride in acetonitrile and reducing the nitro compound to the amino compound with hydrogen under pressure and a nickel catalyst. Similarly, 1-methyl-3-amino-5-pyrazolone is reacted with g (p-nitrophenoxy) butyryl chloride and the nitro group then reduced to amino.  1-n-Hexyl (or 1-n-dodecyl)-3-amino-5-pyrazolone is prepared by reacting 1-n-hexyl (or 1-n-dodecyl) hydrazine with ethyl b -ethoxy-b -aminoacrylate.  1-n-Dodecyl hydrazine is prepared by refluxing 1-chloro-n-dodecane with aqueous hydrazine in ethyl alcohol.  g -(p-Nitrophenoxy) butyryl chloride is prepared by reacting p-nitrophenol with g -chlorobutyronitrile, hydrolysing the resulting nitrile to the butyric acid with glacial acetic acid and conc, hydrochloric acid, and converting the acid to its chloride with thionyl chloride.  m-(2, 4-Di-n-amylphenoxy) acetamidobenzoyl chloride is prepared by acylating m-aminobenzoic acid with a (2, 4-di-n-amylphenoxy) acetyl chloride and converting the acid to the acid chloride with thionyl chloride.  Specifications 524,154, 524,554, 524,559, 536,577, 541,589, 547,064, 599,919, 680,474, 758,165 and 800,108 are referred to.
Patent GB-406381-A (GB)
Title: Improvements in or relating to the manufacture of seamless zinc cups
IPC: B21H7/00
Filed: 1932-09-02
Abstract: 406,381. Making battery cups. SCHULZ, M., Quickborn, Holstein, Germany. Sept. 2, 1932, No. 24551. [Classes 83 (ii) and 83 (iv).] Working at specified temperature.-A zinc battery or other cup is made from a cast plate or disc by pressing in dies, preferably at 120‹ C. or under 400‹ C., to form a shallow cylindrical vessel the walls of which are then rolled, as described in Specification' 382,694, until the desired depth is obtained. The Provisional Specification states that the vessel may be drawn instead of being rolled.
Patent GB-1426096-A (GB)
Title: Method of and apparatus for measuring the extinction coefficient of an atmospheric scatterin medium
IPC: G01N21/53
Filed: 1973-05-23
Abstract: 1426096 Measuring visibility &c. photo-electrically SPERRY RAND CORP 23 May 1973 [1 June 1972] 24553/73 Heading G1A The extinction coefficient, and thus the visibility of an atmospheric scattering medium is determined by providing a transmitter for generating a pulse of radiation to irradiate the scattering medium, providing a receiver proximate the transmitter having a field of view overlapping substantially the full length of the transmitter field for receiving radiation backscattered from the atmospheric medium, sampling received radiation backscattered at first and second discrete ranges from the transmitter, and compensating the radiation samples for amplitude differences therebetween attributable to the differential range of the respective samples. As shown in Fig. 1b, light pulses are transmitted by a source 13, e.g. optically pumped crystals or injection diode laser arrays, and a lens 12, the backscattered radiation being received by the lens 12 and focused on to a detector 17 by a lens 16. A mask 18 prevents direct light from source 13 falling on the detector 17. As shown in Fig. 4, a control unit 21 controls the pulse rate and duration of the light pulses, and also the opening instants and durations of a pair of gates 22, 23, which thereby sample the output of detector 17 at the two ranges. The outputs of the gates are applied to respective integrators 24, 25 which compensate for amplitude differences attributable to the range difference by integrating respective numbers of pulses received in proportion to the square of the first and second ranges. The ratio of the outputs of the integrators is determined in a divider 26 whose output is applied to a log computer to calculate the extinction coefficient. A plurality of measurements could be made at uniform range increments of e.g. 100 feet. Alternatively the measurements may be made in spaced pairs e.g. 100 feet apart at 300 feet intervals. When a plurality of samples are taken, the measurements may be made either simultaneously or sequentially. In sequential mode, each measurement is stored so that the average or mean value can be calculated. In simultaneous mode, additional pairs of gates and integraters with associated divider and logarithmic units are required. The apparatus can also determine the location of points of discontinuity in the scattering medium.
Patent GB-746934-A (GB)
Title: Improvements relating to engine-cooling and vehicle-heating arrangements
IPC: F01P5/06
Filed: 1954-08-24
Abstract: 746,934. Cooling cylinders. DAIMLERBENZ AKT.-GES. Aug. 24, 1954 [Aug. 24, 1953], No. 24637/54. Class 7(2) [Also in Group XIII] A tan 13 for conveying air over the engine radiator 3 and delivering it heated to a vehicle heating. system entry 10 is alternatively belt-driven from the engine by pulleys 18, 17 and 20, 19, respectively for high fan speeds in winter and low fan speeds in summer when valves 12, 7 blank off the entry 10 and open outlets 11, 8 to the atmosphere.
Patent GB-225325-A (GB)
Title: Improvements in lenses for projector lamps
IPC: G02B3/08
Filed: 1923-10-04
Abstract: 225,325. Stoddart, J. Oct. 4, 1923. Lantern fronts.-In a front glass for a motor-car or like lamp of the type comprising refracting and non-refracting portions, the refracting portion or portions directing the light downwardly, the vertical crosssection of the refracting or each of the refracting portions correspond substantially to one half of a symmetrical lens selected from one side of the axis of the lens and two or more non-refracting portions are provided. In one form, a lens is cut from part of a larger lens between its axis and periphery, one or both surfaces of which is concave or convex, or one concave and one convex, and one or more parts 3, Fig. 4, of the surfaces may be grooved or moulded flat so as to transmit light without appreciable refraction. In a modification, a framework for attachment to existing lamps consists of a number of these lenses with spaces through which light can pass without refraction. In a second modification, the front glass is moulded with alternate portions 5, 6 refracting and non-refracting, as shown in Fig. 8. A screen of horizontal slots may be interposed between the light source and the front glass.
Patent GB-597888-A (GB)
Title: Improvements in boot and shoe trees
IPC: A43D3/14
Filed: 1945-12-11
Abstract: 597,888. Shoe trees. WORTHINGTON, W. J., and GRIFFITH, J. W. Dec. 11, 1945, No. 24783/44. [Class 17 (iii)] In a shoe tree of the type in which the toe and heel pieces are normally held apart by a spring-urged telescopic link comprising a rod sliding in a tube, the rod 20 and tube 12 are prevented from rotating relatively and becoming detached by interengaging flats 21 and 28 and a lateral projection 22 on the rod 20. The tube 12 is also flattened at the end remote from the rod in order to retain the spring 25.
Patent GB-454048-A (GB)
Title: Improvements in or relating to apparatus for the inhaling of gases, vapours and the like
IPC: A61M15/00
Filed: 1935-09-05
Abstract: 454,048. Inhalers. SENE, L. P., 160, Rue Gallieni, Boulogne-sur-Seine, France. Sept. 5, 1935, No. 24808. Convention date, Sept. 13, 1934. [Class 81 (ii)] An inhaler comprises a receptacle in which medicinal vapours are produced, and a funnel divided into separate compartments to receive the nose and mouth and each adapted to be put into communication either with the receptacle or the external air. The receptacle a is recessed at m and is covered by a conical funnel b having a lower member c perforated at d and e, and divided by a partition f into passages g and h for the nose and mouth respectively. By rotation of the funnel b either perforation d or e can be located over the receptacle a or recess m, or both perforations can be located partly over the receptacle and partly over the recess. Several receptacles or a single divided receptacle may be employed containing several sources of vapour. The portion c may be curved to facilitate escape of the vapours.
Patent GB-206820-A (GB)
IPC: G02B27/14
Filed: 1923-06-11
Abstract: 206,820. Nolte, C. H. Nov. 11, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Colour photography; colour-sensitive films.- The Specification comprises (1) optical dividing systems for producing three component colour images and arrangements of the partial pictures; and (2) arrangements of the sensitized areas on the films. (1) The main feature of the dividing system is that the sensitive surfaces receive rays coming from symmetric or concentric parts of the objective. Figs. 1, 2, 3 and 6 illustrate arrangements in which the mirrors m, p are of circular or other symmetrical formation. The three images are arranged side by side on the same film, the path of the central beam in the arrangement shown in Fig. 6 being diverted by a series of refiectors to produce images of the same size. (2) The film may have areas i<1>, t<1>, k<1>, Fig. 9, sensitized for different colours with non-sensitized gaps e<1> or with gaps free from emulsion. The edges of the films may be passed successively through sensitizing baths to obtain the bands i', k<1> leaving the band t' untreated for the blue negative. The gaps e<1> may be transverse when the images are in longitudinal sequence. Specification 199,044 is referred to.
Patent GB-1314635-A (GB)
Title: Circuit arrangements for initiating an electrical switching opera tion as a function of a predetermined quantity of electricity
IPC: H02J7/00
Filed: 1971-04-19
Abstract: 1314635 Measuring current and current time interval ROBERT BOSCH GmbH 19 April 1971 [22 Aug 1970] 24936/71 Heading G1U [Also in Divisions G4 and H2] In a device for integrating with respect to  time the current flowing through a conductor, a resistor 12 is connected into the conductor.  The voltage across the resistor is fed to an integrator comprising operational amplifier 20  and capacitor 25. The output of the integrator is fed to Schmitt trigger 19 and monostable 26.  Every time the output of the integrator reaches the Schmitt trigger threshold a pulse is produced at 27 and switch 28 closes to discharge the  capacitor 25. The output pulse train at 27 may be fed to a counter. The above current-time meter may be used to control the charging and discharging of an accumulator 30, Fig. 3. The accumulator is charged from D.C. source 36 and discharges into load 32. The series of switches 33, 40, 42, and 46 are ganged together and controlled by the counter Z, which is a reversible counter. With the switches as shown the accumulator charges up, and count stored in Z increases. When the count in Z reaches a predetermined value the switches change over and the accumulator discharges, counter Z now counts down. When a second count is obtained the switches again change over. Switch 46 controls the threshold of the Schmitt trigger 19 by means of resistor 43 so that slightly more charge is supplied to the accumulator than is removed from it. Alternatively the same effect may be obtained by means of switch 49 controlling resistor 24 in the integrator. In another embodiment the current time meter is used to control a supply of fuel to a fuel cell in response to the current produced by the cell.
Patent GB-1458193-A (GB)
Title: Electric lamps for vehicles
IPC: H01R33/46
Filed: 1973-05-24
Abstract: 1458193 Lamp holder VEGA AUTO PRODUCTS Ltd 24 May 1974 [24 May 1973] 24942/73 Heading H2E [Also in Division F4] A bayonet light source holder comprises insulating housing 3 integral with lamp body 1 and holding combined bulb-cap retainer and earth contact 9 consisting of metal annular disc 11 (alternatively tubular) with diametrically opposed strips bent back to rest against shoulder 8 with their limbs 12, 13 curved to seat in slots recessed into housing wall. Each strip carries bayonet catches lying at the ends of channels running from annulus 11, formed by reduction of strip width; slots (18, Fig. 1, not shown) in base of annulus allow entry of bulb cap pins. In the housing base an inward annular shoulder 5 is pierced by slots 6 to pass the strips, one of which is elongated to form an earth terminal for wire 22. The strips are anchored by twisting out of line after passage of slots 6. A nylon plug 27, with centre contact 26 connected to wire 31, is sprung into the bore of shoulder 5 and is urged forward by spring 30. An elastomeric sleeve (not shown) may be fitted outside its walls and base.
Patent GB-615064-A (GB)
Title: Improvements in photographic film development baths
IPC: G03D13/04
Filed: 1946-08-22
Abstract: 615,064. Photographic developing apparatus. HARPUR, F. C. Aug. 22, 1946, No. 25003. [Class 98 (ii)] A developing dish is characterized by lateral projections extending from the inner walls of the dish, said projections having under surfaces inclined, curved or stepped upwardly towards the middle of the dish to provide linear contact for the edges of the film during development. As shown, the dish 8, which may be moulded from plastic or ceramic material, has sloping ends and the projections are oppositely disposed conical projections 9. These may be continued towards each other to form a bridge beneath which the film is passed or a bridge may be formed of a single downwardlyconcave span. If desired, more than one pair of oppositely-disposed projections may be provided. The dish may be secured to the bench by spring clips 11. The Provisional Specification refers to the use of rollers loosely mounted in bearings in the side walls and having a concave contour for locating the film.
Patent GB-910734-A (GB)
Title: Mould dressings for use in foundry practice
Inventor: JEANNERET JEAN LOUIS
IPC: B22C3/00
Filed: 1960-07-18
Abstract: A foundry mould or cone dressing comprises a suspension of finely divided refractory in an aqueous medium which includes as a suspension agent a polysaccharide of the non-polyuronide heteroglycan group, preferably a galacto-mannan.  The dressing may also contain up to 1% of bentonite, and a fangicide such as sodium orthophenylphenate.  The refractory may be zircon, olivine, chromite, or magnesite flour and the binder a water soluble organic binder such as sulphite lye, dextrin, gum arabic or a water soluble synthetic resin.  1% of an acetate salt of an aliphatic amino and 0,25% of oleyl alcohol may also be added.
Patent GB-1352033-A (GB)
Title: Screening apparatus for cleaning fibre suspensions
IPC: D21D5/06
Filed: 1971-04-19
Abstract: 1352033 Filter for paper pulp J M VOITH GmbH 19 April 1971 [26 March 1970] 25106/71 Heading B1D A paper pulp filter, comprising a frustoconical or cylindrical screen 15 dividing a housing with an inlet 11 and respective accepts and rejects outlets 12, 13 has rotary vanes 22 of aerofoil cross-section cleaning the interior of the screen, different groups of vanes extending over different axial sections of the screen and adjacent vanes of different groups being circumferentially spaced apart. As shown two groups' of vanes are; mounted on respective flanges 21a, 21b of the rotor, but three or more groups may be employed. The vanes in each group and adjacent vanes in different groups may be unequally spaced around the screen (Fig. 2, not shown). The construction minimises generation and transmission of undesirable vibrations to a paper-making machine downstream of outlet 12. Vanes may extend helically of the screen, the lower ends trailing, or parallel to the screen axis.
Patent GB-241883-A (GB)
Title: Improvements in definite time-limit electric relays
IPC: H01H71/42
Filed: 1925-10-08
Abstract: 241,883. British Thomson-Houston Co., Ltd., (Assignees of Stephenson, H. M.). Oct. 21, 1924, [Convention date]. Switches, actuating; retarding and time-limitdevices.-Definite time element relays in which the time settings are varied by varying the range of movemant or speed of a circuit controlling element utilize a planetary transmission as the variable-speed gear. As shown in Fig. 1 the relay contacts 41 - - 46 are controlled through adjustable sun and planet gearing 12 driven from a constant speed motor 1. The gearing 12 is so arranged that the speed at which the circuit controlling member 10 is moved may be varied by causing the part 13 to engage one or other of the sun wheels 18, 21 by being set in one or other of a number of notches 34..36 in a pivoted cradle 32. This cradle is rocked by the armature 39 of an electromagnet 38 to enable the pawl to prevent the movement of one of the gears 18, 21 consequent movement of the member 25 around the shaft 14 causing rotation of the circuit-controlling element 10. Another means of varying the time element is by adjustmont of the initial position of the pin 10 and member 25 which is effected by varying the position of a stop 28 relatively to an indicating plate 30, a stop 31 on the member 25 being held against the stop 28 by a spring 27. As employed for controlling the starter of an induction motor 51, Fig. 2, the motor is provided with a starting contactor 54 for connecting the motor to tappings on the auto-transformer 53 and a running contactor 55. To start, the push button 57 is depressed, so energizing the electromagnet 38 which completes its maintaining circuit through contacts 43, 44 which it closes and contacts 41, 42 which remain closed, circuits for the relay motor 11 and starting contactor 54 also being completed. After the expiration of the time limit the member 10 engages a projection 50 of an msulating bar 49 which now releases the spring carrying the contact 46 which quickly engages the contact 45, the hooked end of this spring also separating contacts 41, 42 with a quick action. The circuit of the line contactor 55 is now completed until broken by the "stop" push-button 58.
Patent GB-406389-A (GB)
Title: Improvements in and relating to pedestals, more particularly for pit tubs and similar vehicles
IPC: B61D11/00
Filed: 1932-09-09
Abstract: 406,389. Pedestal bear ings. SHEPPARD, H. B., 1, Cobden Street, Derby. Sept. 9, 1932, No. 25133. [Class 12 (i).] A pedestal bearing for pit tubs &c. comprises two angle pieces spaced apart so that one side A of each lies in a common plane to form a baseplate and the other sides E form vertical walls between which the axle H is accommodated on a replaceable bearing pad C mounted on a bolt D passing through the walls, which are joined by a U-shaped strap B welded to their ends. The pad C swivels on the bolt D so that the bearing is self-aligning in a vertical plane. The bolt D is secured by a cotter F and the angle pieces have bolt holes G.
Patent GB-1382707-A (GB)
Title: Apparatus for opening a door window or panel of a type having top  hung arms and vertical tracks
IPC: E05F15/16
Filed: 1972-05-30
Abstract: 1382707 Up-and-over door and window operating mechanisms P C HENDERSON Ltd 30 May 1973 [30 May 1972] 25147/72 Heading E2M A window or more particularly, as described up-and-over-door 19 mounted in a frame 20 by top-hung arms (not shown) and rollers 13 running in vertical tracks 14 is opened and closed by a mechanism comprising co-axial spools 5, 6 driven through gearing 7 by an electric motor 18, the spools having oppositely wound cords 8, 9 respectively of which the cord 9 is attached directly to the spindle 4 of the respective roller 13 and the cord 8 passes over a pulley 3 and back to an attachment on shaft 4. Brackets 16 and 22, mounted on tracks 4 respectively carry pivoted arms 1 and 2, the former having a cord connection 11 with a door catch 10 and the latter being spring biassed in the direction of the arrow away from a bracket 12 mounted on the door. The cord 8, between spool 5 and roller 3, passes over, and is deflected out of its direct path by, arms 1 and 2 so that upon operation of spool 5 arm 2 is initially urged by cable 8 into contact with bracket 12 and arm 1 is rocked thereby actuating the door catch mechanism. Thereafter arm 2 bearing on bracket 12 gives the door an initial rocking movement so that cord 8 when straightened can complete the door opening movement. Operation of motor 18 in the opposite direction will, through cord 9, close the door. Microswitches 15 and 17 are provided to cut out the motor when the door is fully open or closed respectively.
Patent GB-1521187-A (GB)
Title: Means for orienting and filling casks
IPC: B67C3/34
Filed: 1976-06-17
Abstract: 1521187 Orienting casks for filling AUTOMATION FEEDING DEVICES PTY Ltd and TOOHEYS Ltd 17 June 1976 [17 June 1975] 25150/76 Heading B8T Casks 7 to be filled and sealed progress from a rest station 4 to a filling station 6 via an orienting station 5, a cask at each station 4, 5 being lifted simultaneously by upstanding arms 30, 29 respectively and conveyed thereby to stations 5, 6, the cask then arrived at station 5 being rotated by rollers 32, 33 until a depending plunger 36 engages a shive hole in the cask and prevents its further rotating. Subsequently the oriented cask at station 6 is filled and shived. See Divisional Specification 1,521,188.
Patent GB-526799-A (GB)
Title: Improvements in electric melting furnaces intended particularly for the manufacture of glass
IPC: C03B5/03
Filed: 1939-09-07
Abstract: 526,799. Electric melting furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Sept. 7, 1939, No. 25250. Convention date, Sept. 17, 1938. [Class 39 (iii)] In a glass melting furnace the raw material is introduced through openings 3 close to which, in each portion 1, 1a, are electrodes 5, 5a extending across the path of the flowing material and each producing a hot zone 6 which is short longitudinally of the furnace. The raw material is rapidly melted by the concentrated heat, and is fired in the portion 2, in which there are no electrodes, on the way to outlets 4. In a modification, three melting portions are provided each with an electrode connected to a threephase supply..