baber/WOPTO huggingface dataset:
Patent GB-488108-A (GB)
Title: Improvements in and relating to colour photographic films bearing sound images and methods for producing the same
IPC: G03C7/24
Filed: 1936-12-31
Abstract: 488,108. Sound tracks in photographic colour films. KODAK, Ltd. (Eastman Kodak Co.) Dec. 31, 1936, No. 35806. [Class 98 (ii)] The sound images in a multilayer colour photographic film is produced in upper layer or layers by removing all the silver or silver salt from the lower layers of the sound track before colour processing, reconverting the silver produced in the picture and sound track areas to light sensitive silver salt and then exposing the sound track only. When the film is to be processed to colour after reversal of the images, for example, in a film comprising blue sensitive, red sensitive and green sensitive layers, the sound track is fully exposed to yellow light. After reversal treatment and the second exposure to white light, the sound image is contained in the blue sensitive layer only. Where the bottom layer is red sensitive, the first exposure of the sound track is made to red light. When the reversal process is not used, the sound track is exposed to light to which the upper two layers are sensitive, e.g. blue or blue green light. The silver salt in the lower layers is then wholly removed in the fixing operations. The processing is done by methods involving successive colour development and controlled bleaching, and when the silver in the picture area is converted to silver salt by means of a potassium ferricyanide-bromide bath, the sound track is selectively exposed and developed. The silver image in the sound track may be combined with a minus-red image by colour development with a blue green colour former. The sound track image may be intensified, or may be converted into a silver sulphide image as described in Specification 467,614. Specifications 440,032, 440,089, 447,092, 475,784, and 475,786, also are referred to.
Patent GB-321346-A (GB)
Title: Improvements in or relating to ship's rudders
IPC: B63H25/38
Filed: 1928-12-05
Abstract: 321,346. Oertz, M., and Carp, J. R. Dec. 5, 1928. Addition to 218,687. Rudders.-The modification of the rudder according to the parent Specification is provided wherein the stem post in front of the rudder is rounded off at the front and the rudder itself is made of cut water or stream line shape with the pivotal axis of rotation extending centrally through the rudder; the rudder itself may be formed non- symmetric in its cross section. The shaping of the rudder post may be effected by a provision of an external shaped casing, Fig. 2. The rear edge of the rudder may be constituted by a plate secured to the stream line main portion, Fig. 4. Specification 293,669 is referred to.
Patent GB-513105-A (GB)
Title: Improvements in and relating to the treatment of petroleum distillates and the separation therefrom of a compound or compounds functioning as inhibitors
IPC: C10L1/10
Filed: 1937-12-29
Abstract: 513,105. Petroleum distillates ; antioxidants. TRINIDAD LEASEHOLDS, Ltd., HENE, E., and BERRY; A. G. V. Dec. 29, 1937, No. 35967. [Class 91] The water-soluble bodies retained in the aqueous layer arising from the acidification of the used alkaline wash liquors of petroleum. refining are used for preventing or retarding changes attributed to oxidation and polymer-- ization in mineral, animal and vegetable oils. The compounds may be introduced into the oil by intimately mixing it with the appropriate quantity of the aqueous material or, alternatively, they may be first extracted from the aqueous material by means of organic' solvents relatively insoluble in water, for example, higher alcohols, and then added to the oils with or without the removal of the solvents. In the examples (1) pressure distillate is treated with 2 per cent. by volume of an 8 per cent. caustic soda solution which is then carbonated with flue gas. The oily layer is removed and the aqueous layer used as an inhibitor for the purposes indicated'; (2) pressure distillate is treated with 2 per cent. by volume of a 4 per cent. caustic soda solution until the aqueous solution is neutral whereby 20 per cent. of the inhibitors remain in the hydrocarbon ; the inhibitors in the aqueous liquor may be recovered by acidification and extraction.
Patent GB-1028378-A (GB)
Title: A photocopy machine
IPC: G03D13/00
Filed: 1964-09-02
Abstract: 1,028,378. Diffusion transfer apparatus. SPEED-O-PRINT BUSINESS MACHINES CORPORATION. Sept. 2,1964 [Jan. 24,1964], No. 36009/64. Heading G2A. A photocopying machine for carrying out the diffusion transfer process comprises a housing; a trough 7 having an entrance side 10 and an exit side 11; a passage way 23 in the trough defined by the parts 14,15,16 and a removable bottom 19 spaced from the main part of the trough and containing the developer liquid, the passageway remaining dry when a positive sheet is fed into it through an entrance 24 thus passing under the developer; a second opening and passage 28 defined by a plate 27 through which an exposed negative is fed into and through the liquid; and a pair of rollers 8, 9 (Fig. 1, not shown) inside the housing through which the dry positive and wet negative sheets pass whereby the image is transferred to the positive, ribs being provided to facilitate the movement of both sheets. The removable bottom 19 has off-set portions 42, 47 which fit into tapered slots 31, 32, there being enlargements 45, 46 which space the bottom 19 from the parts 14, 15, 16. A system of trenches and conduits is provided to fill and empty the removable bottom 19 with developer liquid without removing the bottom from the housing.
Patent GB-851646-A (GB)
Title: Improvements in or relating to therapeutically useful carbamates and compositions containing them
IPC: C07C271/12
Filed: 1958-11-10
Abstract: The invention comprises 3-ethyl-3-pentanol carbamate and 2-methyl-2-pentanol carbamate.  These and other tertiary pentanol carbamates of the formula R1.R2.R3.C.O.CO.NH2 (wherei R1 and R2 are alkyl groups together containing 4 carbon atoms and R3 is an alkyl group containing not more than 6 carbon atoms) are prepared by (1) reacting the corresponding tertiary pentanol with carbamyl chloride, urethane or an alkali metal cyanate; or (2) reacting a phenyl carbonic acid ester of the corresponding tertiary pentanol with ammonia; or (3) hydrogenating a corresponding unsaturated alcohol carbamate.  Examples describe the preparation of the above-mentioned compounds and of 3-methyl-3-pentanol carbamate.  Specification 14699/1911 is referred to.ALSO:Pharmaceutical compositions, stated to possess muscle-relaxing and tranquilizing actions, comprise, as active ingredient, a tertiary pentanol carbamate of the formula R1.R2.R3.C.O.CO. NH2 (wherein R1 and R2 are alkyl groups together containing 4 carbon atoms and R3 is an alkyl group containing not more than 6 carbon atoms) in association with a pharmaceutically acceptable carrier. Preferred formulations are tablets, syrups, elixirs and suppositories, and a dosage unit advantageously contains 50 to 800 mg. of active ingredient.  Examples describe tablets of 3-methyl-3-pentanol carbamate, lactose, starch and magnesium stearate, suppositories containing this active ingredient with polyethylene glycols, sorbitan monooleate, polyoxyethylene sorbitan monooleate, hydrogenated coconut oil and water and elixirs containing the same active ingredient in admixture with sodium carboxymethylcellulose, sorbitol solution, sodium cyclamate, methyl paraben, raspberry flavour and polyoxyethylene sorbitan monooleate. Specification 14699/1911 is referred to.
Patent GB-1039247-A (GB)
Title: Process for fluorinating chlorinated aliphatic hydrocarbons
IPC: C07B39/00
Filed: 1964-09-03
Abstract: Chlorinated aliphatic hydrocarbons are fluorinated by reaction with CaF2 at a temperature above 350 DEG  C. in contact with a metal of Group III to VIII of the Mendeleeff Periodic System, or copper, or a compound of such a metal.  The CaF2 may be subjected to grinding during the reaction.  Examples are given.  Reference has been directed by the Comptroller to Specification 941,144.ALSO:A composition for use in the fluorination of chlorinated aliphatic hydrocarbons (see Division C2) comprises calcium fluoride plus a metal of Groups III to VIII of the Mendeleeff periodic system or copper, or a compound of such a metal.  The metals are preferably in the form of chlorides but may be used in any other form from which the chloride can be formed during the reaction, for example, the metal, or the oxide, hydroxide or fluoride thereof.  In Examples the following single components are used in admixture with CaF2; FeCl3, CuCl2, NiCl2, CoF2, AlF3, MnCl2, Cr(OH)3, AlCl3 and metallic iron. Reference has been directed by the Comptroller to Specification 941,144.
Patent GB-1033957-A (GB)
Title: Improvements relating to boron phosphate
Inventor: COLLINS JOHN FREDERICK
IPC: C01B35/14
Filed: 1963-09-13
Abstract: Boron phosphate is produced by heating a trialkyl borate, in which the alkyl groups each have at least 2 carbon atoms, with phosphoric acid containing at least 65% H3PO4, removing from the reaction zone the alkanol obtained as by-product and drying the gel thus obtained. Acid of e.g. 80 to 95% concentration is used, preferably with an equimolar proportion of the trialkyl borate.  The reaction mixture is agitated and its temperature may initially be between the b.p. of the by-product alcohol and a level 50 DEG  C. above it.  The gel is dried at, say, 50 DEG  to 140 DEG  C., under sub-atmospheric pressure if desired.  The reaction may be carried out in an inert solvent, e.g. the alcohol corresponding to the alkyl groups.  The trialkyl borate can be formed in situ by reaction between boric acid and the appropriate alcohol, in which case the phosphoric acid is added after at least part of the boric acid has reacted.  Specified borates are those containing 2 to 6 carbon atoms per alkyl group, e.g. tri-n-propyl, tri-isopropyl and tri-s-butyl borates.  The BPO4 produced has a high surface area, which may be 300 m2/g or more.ALSO:Alcohols, e.g. those containing 2 to 6 carbon atoms, are obtained as by-products when trialkyl borates are heated with concentrated phosphoric acid to produce boron phosphate. In examples, n-propanol, isopropanol and s-butanol are obtained.
Patent GB-972465-A (GB)
Title: Improvements relating to slicing machines
Inventor: DUYN ADRIANUS VAN
IPC: B26D7/06
Filed: 1963-09-14
Abstract: 972,465. Slicing machines. MAATSCHAPPIJ VAN BERKEL'S PATENT N.V. Sept. 14, 1963, No. 36273/63. Heading A4C. A slicing machine having a feed table reciprocated by motor means 10 includes connecting means which selectively connects the motor to the table the reciprocate the latter at either of two speeds, the strokes of the table at the respective speeds being unequal. The output shaft 11 of the motor 10 drives, by means of worms in a gear box 15, two shafts such as 16 at different speeds to drive a pair of cranks such as 16A having different throws, the cranks in turn causing a simultaneous reciprocation of links 18, 19 pivotally connected at one end thereto. The links 18, 19 at their other ends are pivotally connected respectively to arms 21, 22 pivotally mounted on a common shaft 23 which further pivotally mounts a third arm 26 which reciprocates the feed table. The third arm 26 pivotally mounts a rocker 27 having lugs 28 at its ends which selectively engage recesses 25 in the ends 24 of the arms 21, 22, whereby on manually positioning an eccentrically mounted selector handle 32 causing movement of the rocker 27 through a link 29, a lug 28 is engaged in one or other recess 25 to lock the third arm 26 to one or other arm 21 or 22. Alternatively the handle 32 may be located in a neutral position in which the rocker 27 does not engage either arm 21, 22 and the feed table is reciprocated manually. Specification 797,846 is referred to.
Patent GB-1080233-A (GB)
Title: Surface treatment of sheet materials and articles
IPC: B29C48/08
Filed: 1964-09-04
Abstract: 1,080,233. Electrotreating polycarbonate films. CELANESE CORPORATION OF AMERICA. Sept. 4, 1964 [Sept. 9, 1963], No. 36273/64. Heading B5B. [Also in Divisions B6 and G2] In order to improve printing receptivity the surface of a polycarbonate film or article is subjected to a corona discharge for a period of less than one second. In the described embodiment, film extruded from an apparatus comprising an extruder 10, conduit 12, accumulator 14, conduit 16, die 18 and withdrawal rollers 22, 24 is passed to a corona treating station T via a cooling roller 26 and a guide roller 28. The station T comprises an earthed roller 30 around which the film passes and an electrode 34 in the shape of a bar positioned close to the roller. High frequency, high voltage potential is applied to the electrode 34, the supply circuit consisting of a generator 44, voltage regulator 46 and a transformer 36. The treated film may be coated with a photosensitive compound.
Patent GB-1275247-A (GB)
Title: Transistor circuit with an inductive load
IPC: H03K17/64
Filed: 1970-07-27
Abstract: 1275247 Transistor circuits with inductive loads LICENTIA PATENT VERWALTUNGS GmbH 27 July 1970 [29 July 1969] 36276/70 Heading H3T In a circuit in which an inductive load R (e.g. a relay with a switch S controlling a lamp L1) is energized through a transistor T1, the diode normally provided across the load to shunt the back e.m.f. is constituted by the collector/base path of a second transistor T2, the base of T2 being connected to the collector of T1. The object is to ensure that only a fraction of the current for a network R2 passes through the relay, so that this current does not hold on the relay when T1 is turned off. The network R2 may comprise components connected to the base of a third transistor in a monostable or astable trigger circuit. The circuit may be in integrated form.
Patent GB-1195198-A (GB)
Title: Improvements in and relating to Agricultural Machines.
Inventor: TEAGLE WILLIAM THOMAS
IPC: A01D78/10
Filed: 1966-08-15
Abstract: 1,195,198. Haymaking machines. W. T. TEAGLE. 19 Sept., 1967 [15 Aug., 1966], No. 36426/66. Heading A1F. A haymaking machine comprises a frame 1 detachably securable to the rear of a tractor (not shown) with at least one rotary rake-head 14 rotatable in the frame about a substantially vertical axis and provided with a plurality of rigid flexibly-mounted tines 21, the rake-head being driven from a shaft 31 journalled in the frame, to extend longitudinally of the direction of travel, via one or more belts 33, the shaft 31 being driven from the tractor power take-off. The frame may be mounted on tractor hitch-links 5, 8, or it may be towed (Fig. 7, not shown) the ground-supports for the heads being then vertically adjustable castors journalled on the axles 13 of the heads. In Fig. 1 only a single head is provided, the crop being thrown against a screen 36, but in Fig. 5 two oppositelyrotating heads 14, 41 are interconnected by a crossed belt 42, one head 41 being transversely adjustable along a crossmember 48 of the frame. Each head comprises a dished ring 15 integral with a beltpulley 20 and connected to the rotary axle 13 by radial arms 16 and by conicallyarranged struts 17 to the dome 18. Each tine 21 is carried by a rubber bush 23 bonded to a collar 24 secured to both the ring 15 and to a stop-member 26 on the ring. A spring 30 is connected between a flange 27 on the tine and the edge of the ring 15 so that the tine can deflect, against spring-loading.
Patent GB-991163-A (GB)
Title: Improvements in or relating to the shrink-proofing of wool
Inventor: FELL ERIC TOM
IPC: D06M11/30
Filed: 1960-10-24
Abstract: Material composed wholly or partly of wool is shrink proofed by treating it at a temperature in excess of 70 DEG C. with a aqueous solution containing permonosulphuric acid or salts thereof which contains less than 10% by weight of sulphuric acid and has a pH of less than 8.  Scoured or unscoured wool may be treated and the solution may also contain a synthetic detergent.  The wool may subsequently be treated with an aqueous solution of a salt of sulphurous acid which may contain a detergent.  The treatment may be combined with a dyeing process, the wool being first dyed with, for example, Neolan Red GR and permonosulphuric acid then being added to the exhausted dye bath.
Patent GB-896854-A (GB)
Title: Improvements in legible character forms for use in combination with reading machines
IPC: G06V30/192
Filed: 1959-10-28
Abstract: 896,854. Automatic character readers. GENERAL ELECTRIC CO. Oct. 28, 1959 [Oct. 30, 1958 (2)], No. 36555/59. Class 106 (1). Magnetic characters for automatic reading are, as shown in Fig. 1, composed of an assembly of rectangular areas, formed between evenlyspaced vertical parallel lines 11-18. When such characters are magnetized and passed under a magnetic reading head a characteristic signal waveform is generated as shown in Fig. 3, the leading edge of a line of the character giving a positive excursion and the trailing edge giving a negative excursion. These waveforms are recognized to indentify the character sensed by a tapped delay line and resistive correlation circuits in a manner similar to that described in Specification 796,579, and illustrated in Fig. 5 with a circuit adapted to respond to the character " O." The "O " waveform, Fig. 3, has a large positive excursion at the beginning followed by a rather smaller negative excursion and at the end a smaller positive pulse followed by larger negative pulse. The signal is passed into a delay line 51 having evenly-spaced tappings A-H corresponding to the parallel lines 11-18 of Fig. 1. Potential dividers connecting the tappings to earth are proportioned according to the expected signal when the waveform is properly positioned in the delay line. The ratio of dividers 57 and 60 may be 0.95 and of dividers 58 and 59 may be 0.85. The positive signal dividers 58 and 60 are connected to a summing network 62 and negative signal dividers 57 and 59 to network 63. The outputs are applied to a difference amplifier 67 to produce a signal at point 70 which represents the sum of the signals produced by the dividers 57-60. One of these circuits is provided for each character to be recognized, the tappings A-H being conected to appropriate dividers in each. The highest output signal will be expected from the circuit designed to recognize the character being sensed. To find which circuit produces the highest signal, connections from each output terminal 70 are made via diodes and an adjustable resistor to a cathode follower. The resistor is adjusted so that the output from the cathode follower has a level just less than the highest signal applied. Each correlation circuit output is compared with this level and the one that exceeds it produces a signal. This is gated with a signal which indicates that the waveform signal is properly positioned in the delay line and the outuut amplified to mark one of ten digit leads. If a mis-shapened waveform is in the delay line none of the circuits responds properly and the comparing level will probably be less than two or more of the circuit output signals. This means that outputs will appear on more than one lead but a detector is provided which adds the signals on the output leads and applies the resultant signal to a threshold device which responds to give an error signal if more than one lead is marked.
Patent GB-1561338-A (GB)
Title: Spiral casing for fluid flow machines
IPC: F01K7/30
Filed: 1976-09-03
Abstract: In a spiral housing for turbo-engines at least one tongue (7, 8) is guided, sliding on the radially inner wall of the sprial housing, by virtue of the displacement of which tongue in the circumferential direction the inflow and outflow cross-section can be adjusted in that the tongue (7, 8) has end areas running radially inwards. The tongue (7, 8) is at the same time fixed on a pivotably mounted tongue insert, which is formed by a tubular connection piece lying opposite the spiral housing in the flow path. An exhaust turbocharger with such a spiral housing can be adjusted very precisely to the characteristic of an internal combustion engine. <IMAGE>
Patent GB-354146-A (GB)
Title: Metallic container for electric accumulators intended to operate in an inflammable atmosphere
IPC: H01M50/147
Filed: 1930-12-05
Abstract: 354,146. Galvanic batteries. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. Dec. 5, 1930, No. 36739. Convention date, Jan. 13. [Class 53.] Cases.-An accumulator which is intended to be used in an inflammable atmosphere is housed in a metal container having a cover comprising two plates, one of which is fixed and is provided with holes in line with the vents or filling orifices, the other plate being movable and having holes which can be opened or closed by moving the plate so as to open the container to the atmosphere or to close it and render it gastight. The Figure shows a plan of a container having two compartments in which F is the fixed plate of the cover and M, M are two movable plates. The plate F is formed with a number of holes B situated above the vents or filling orifices of the accumulator. The movable plates M, M are also formed with openings B<1> which can be brought into register with the holes B by a sliding movement of the plates M. The plates are held together by studs 4 secured to the movable plates and passing through slots 5 in the fixed plate. A rib 8 on the plate F surrounds each stud and slot 4, 5. Nuts 6 on the studs 4 clamp the plates together. By loosening the nuts 6 the plates F, M can be moved relatively to bring the holes B, B<1> into line.
Patent GB-370920-A (GB)
Title: Improvements in or relating to quick-action electric switches
IPC: H01H37/60
Filed: 1930-12-05
Abstract: 370,920. Electric hand irons. EDISON SWAN ELECTRIC CO., Ltd., 123, Queen Victoria Street, London, and LINES, H. E., 46, Nags Head Road, Ponders End, Middlesex. Dec. 5,1930, No. 36757. [Class 138 (ii).] An electric iron has a switch mounted on it having a lever 6 projecting from the casing so that the act of turning the iron from the ironing position to a standing position moves the switch to the off position. When the iron leans back on the stand 12, the lever 6 is clear of the surface 13 on which the iron stands and the switch may be closed by means of a button 7.
Patent GB-887969-A (GB)
Title: Improvements relating to cabinets having hinged lids or covers
IPC: E05C17/20
Filed: 1960-10-26
Abstract: 887,969. Stays. LICENTIA PATENTVERWALTUNGS' G.m.b.H. Oct. 26, 1960 [Oct. 26, 1959], No. 36775/60. Class 65(1). A cabinet lid or cover 1 (Figs. 1, 2) horizontally hinged at 7 is retained in any open position by a rod 2 pivoted at one end on the cover away from the hinge 7 and disposed perpendicularly to the cover in the closed position, the rod having associated therewith a movable member 4 arranged to permit movement of the rod in response to opening of the lid but effective to jam the rod to prevent the lid from closing, the movable member being rendered inoperative to permit the lid to close by opening the latter to its full extent. The member 4 is of inverted channel-section pivoted at 5 between a pair of angle members 6 fixed to a part 9 of the cabinet, and the rod 2 passes with small clearance through a slot 10 in the member so that as the lid is raised the rod is drawn upwards through the siot but when the lid is released the member drops a short distance and jams the rod in the slot. When the lid is fully open a projection 3b on the rod abuts the member 4 and forces it between the opposed inclined surfaces of the angle members 6 so that it is held inoperative while the lid closes. A projection 3a on the rod disengages the member 4 from the angle members when the lid is nearly closed. In a modification the rod moves downwardly as the lid opens and a spring clip is provided to hold the member 4 in an inoperative position while the lid closes. In a further modification (Fig. 5) the rod 22 passes between a pair of rollers 24, 25 one of which is movable in slots 29 in the supporting members 26 to effect jamming of. the rod. The movable roller is held inoperative by a catch spring 30 to permit the lid to close.