baber/WOPTO huggingface dataset:
Patent GB-1129085-A (GB)
Title: Photographic silver halide materials and the development thereof
Inventor: THOMPSON JOHN MARTIN
IPC: G03C1/09
Filed: 1965-02-24
Abstract: 1,129,085. Developing photographic silver halide materials. ILFORD Ltd. Feb.22, 1966 [Feb. 24, 1965; Jan.5, 1966], Nos.7994/65 and 500/66. Heading G2C. A developable photographic silver halide material is developed in the presence of a compound of the formula:- wherein X is -CN or -CONR 1 R 2  in which R 1  and R 2  are each hydrogen, alkyl or hydroxalkyl of 1 to 6 carbon atoms or aryl which may be substituted, or R 1  is hydrogen and R 2  is -NH 2  x is 1, 2, 3, 4 or 5, y is 0 to 10 and m is 0 or 1, y being 0 when m is 0 and being other than 0 when m is 1, A and B when y is 1 are each hydrogen, alkyl or hydroxyalkyl of 1 to 6 carbon atoms or aryl which may be substituted or one of A and B is hydrogen and the other is -S(CH 2 ) x X, and A and B when y is greater than 1 are each hydrogen. The compound may be present in the silver halide emulsion or another layer of the photographic material, or may be present in the developer, or in a bath in which the material is treated before development. The photographic material may be a colour material containing colour couplers or these may be present in the developer. The compound may be used in the reversal developer or in the colour developer.
Patent GB-1089463-A (GB)
Title: Improvements in or relating to grease compositions
Inventor: HAAK ALFRED ROMUALD
Filed: 1965-02-24
Abstract: A grease comprises a base oil, e.g. mineral oil; a thickening agent; a metal dialkyl thiophosphate or a metal diaryl thiophosphate or a metal mono-alkyl mono-aryl thiophosphate; salicylic acid or a metal salt thereof, e.g. lithium or lead salts; and an oil soluble alkyl-substituted aryl sulphonic acid or a metal salt thereof. Specified thickeners are lithium soaps and salts, e.g. lithium 12-hydroxystearate. Metal thiophosphates specified are the zinc salts.  Calcium, barium, magnesium, alkali metal and amine salts of alkyl substituted naphthalene sulphonic acid are referred to. The grease may also contain a structure modifier, e.g. glycerol, diols, polyalcohols and ethoxylated derivatives of fatty alcohols, fatty acids or diols.
Patent GB-363570-A (GB)
Title: Improvements in and relating to threshing machines or the like
IPC: A01F12/44
Filed: 1931-03-16
Abstract: 363,570. Thrashing &c. machines. LANZ AKT.-GES., H., 53, Lindenhofstrasse, Mannheim, Germany. March 16, 1931, No. 8079. Convention date, July 19, 1930. Addition to 350,557. [Class 58.] The reshaker device of the short straw separating apparatus of the machine described in the parent Specification is now constructed as an endless belt under the upper run of which a sieve is provided and under the lower side of which is arranged a plate down which the chaff is conveyed into the blast from the thrashing machine. The straw leaving the shaker b is thrown on to the upper side of the endless belt reshaker c which carries it to the exterior of the machine. Chaff falls through a sieve d below the upper run of the belt on to an unperforated base d<1> down which it is moved by the lower run of the belt to a sloping base g whence it passes into the air blast proceeding from the thrashing machine over the sieves m, m<1>. The short straw and chaff from the sieves and the chaff from the reshaker are thus blown into a separating chamber h that is provided with a perforated roof r to permit the escape of the blast. A curtain s prevents the chaff being blown directly from the chamber. The chaff and short straw falls on sieves n where it is loosened by oscillating rakes t, the straw passing over the sieves and out at the rear of the machine whilst the chaff passes through the perforations into a collecting box i.
Patent GB-557159-A (GB)
Title: Improvements in synthetic resins
IPC: C08F8/28
Filed: 1941-06-27
Abstract: 557,159. Synthetic resins. BRITISH THOMSON-HOUSTON CO., Ltd. June 27, 1941, No. 8087. Convention date, June 29, 1940. [Class 2 (iii)] Resinous products useful for moulding, laminating, coating, adhesive, insulating &c. purposes comprise acetals formed by simultaneous hydrolysis and acetalization of copolymers derived from one or more vinyl esters and a minor proportion of one or more unsaturated alkyd resins obtained from an α-# unsaturated polycarboxylic acid ; the alkyd resin may be modified by inclusion of a saturated polycarboxylic acid, a monocarboxylic acid or a monohydric alcohol. The amount of unsaturated alkyd resin is not more than 50 and preferably less than 30 per cent., e.g. 0.1-10 per cent. by weight, of the mixtures of reactants; these are polymerized in the presence of a catalyst at room or elevated temperature. Vinyl esters of saturated and unsaturated, aliphatic and aromatic, monobasic and polybasic acids may be used ; lists are given; detailed lists are also given of suitable polyhydric alcohols, α-# unsaturated polycarboxylic acids, saturated polycarboxylic acids, monocarboxylic acids and monohydric alcohols. Acetalization is effected at 60-100‹ C. in the presence of a catalyst, preferably acidic, in a liquid medium adapted to cause dispersion of the acetalized product, e.g. acetic or propionic acids, alcohols or esters ; acetalizing agents are aldehydes or ketones, a substance engendering an aldehyde or ketone, examples being specified. Products having different properties are obtained by varying the degree of hydrolysis and acetalization ; further, by effecting hydrolysis and acetalization in the presence of compounds capable of forming methylol derivatives, e.g. phenols, alcohols, amides and urea compounds. The products may be modified by the introduction of modifying bodies during or after acetalization, e.g. other synthetic resins, hydrolysed wood products, lignums, proteins, water-soluble cellulose derivatives, and natural gums and resins ; also plasticizers, stabilizers, dyes, pigments, fillers and mould lubricants : detailed lists are given. Coating compositions are obtained by dissolving or swelling the products in solvents or swelling agents, with or without oils &c..: lists are given. Some of the products may be drawn into fibres. Examples are given of copolymers of vinyl acetate with various glycol maleates acetalized with (1-5) formaldehyde, (6-10) butyraldehyde and (11- 15) various ketones. Examples 16-28 involve acetalization with formaldehyde in the presence of other aldehyde-reactive compounds, i.e. phenolic compounds, urea and amides. Specification 552,313 is referred to.
Patent GB-165177-A (GB)
Title: Improvements in manometers
IPC: G01L7/22
Filed: 1920-03-18
Abstract: 165,177. Martin, H. March 18, 1920. Indicating.-Relates to manometers of the kind in which a float in one or both of the legs of a U-column of mercury controls an external pivoted magnet to operate indicating means, and consists in replacing the permanent magnet described in Specification 12371/15 by an electromagnet, in substituting recording-mechanism for the indicating-pointer, and, in a preferred construction, in the use of a square-root cam in the recording mechanism, thereby furnishing uniformly grad ated movements in proportion to the flow of the fluid when the manometer is used in conjunction with a Venturi or Pitot tube. The electromagnet comprises two bar-like members e mounted on a rotatable spindle d carrying a soft iron core and a non-rotatable coil b which is supported from the manometer casing at c, one member e being in front of, and the other behind, the limbs f of the U-tube. Variations in the height of mercury in the limbs f cause the floats k, and with them the armatures g, to rise or fall and thus to rotate the magnet arms e and spindle d. Rotation of the spindle d, and of the camplate mounted thereon, produces movement of a recording-pen across a clock-driven drum.
Patent GB-676874-A (GB)
Title: Improvements in cooking ranges
IPC: F24B1/22
Filed: 1949-03-24
Abstract: 676,874. Cooking-ranges. SMITH & SONS, Ltd., S., and WILLIAMS, C. March 16, 1950 [March 24, 1949; Oct. 7, 1949], Nos. 8106/49 and 25769/49. Class 126 A cooking- range comprising a body in which is mounted a firebox comprising a grate below which is an air chamber having a controlled air inlet, a hot water boiler, an oven over the firebox and one or more doors at the front, is provided with a boiler flue leading from the rear lower part of the firebox to the back of the body and thence upwardly to a flue surrounding the oven whereby with the doors open air is drawn across the fire to the boiler flue and is thus heated before passing to the oven flues. The firebox is dispcsed above the base plate 1 of the cooking range and is provided at the front with a perforate grate 5 disposed in a frame 4 and on a level with an imperforate plate 8 at the rear of the firebox. An air chamber between the base plate of the range and the perforate grate 5 is provided at the front with an adjustable regulator plate 11 provided with an opening 12 closed by a further plate 13. The opening'17 at the front of the firebox may be sealed by hinged doors 18 having mica windows 19 and provided with asbestos sealing strips 20. The sides of the firebox may be brick or formed from cast iron plates. An oven 38 having a door 45 at the front having asbestos sealing strips 47 is disposed directly above the firebox and flues are formed between the top, bottom, rear and sides of oven 38 and the oven casing. Flue gases enter these oven flues either directly from the firebox through an opening 33 or after passing below and at the rear of a boiler 24 and through an opening 34. The openings 33, 34 may be controlled by a sliding damper 35. Horizontal U-shaped baffles 43, 52 are disposed in the top and bottom oven flues. The oven 38 is held in position at the rear by a stud 41 which engages a bracket 42 in the rear oven flue. Plates 29, 27 above the boiler which separate the boiler flue 26 from the firebox have closable cleaning openings. A perforate hot plate 55 may be supported on lugs 56 on the sides of the firebox above the perforate grate 5. A hotplate extension 57 may be pivotally mounted in front of the firebox level with the hotplate 55. The extension hotplate 57 is provided two pairs of lugs which abut with lugs at the sides of the firebox to hold it in horizontal or vertical position respectively.
Patent GB-1180441-A (GB)
Title: Treatment of Carbon Fibres and Composite Materials including such Fibres
Inventor: WADSWORTH NICOLAS JOHN
IPC: D01F11/12
Filed: 1967-02-21
Abstract: 1,180,441. Reinforced epoxy resins. NATIONAL RESEARCH DEVELOPMENT CORP. 14 Feb., 1968 [21 Feb., 1967], No. 8201/67. Heading C3B. [Also in Division C1] Epoxy resin reinforced by incorporating carbon fibres which have been surface oxidized by an oxidizing atmosphere at an elevated temperature.
Patent GB-544276-A (GB)
Title: Improvements in or relating to devices for coin apparatus for telephone plants
IPC: H04M17/02
Filed: 1940-05-07
Abstract: 544,276. Automatic exchange systems. MOE, K.O. May 7,1940, No. 8218. Convention date, May 13, 1939. [Class 40 (iv)] In a prepayment station, cashing in and cashing out take place when the calling party hangs up under control of a polarized magnet or a pair of such magnets energized by the ordinary feed current via contact springs actuated by the coin. As shown in Fig. 2, the magnets I, II are polarized by rectifiers. The insertion of the coin removes a shunt at 9, 10 from the dial springs N and talking instrument T, and shunts the bell at 9, 8 and at 6, 7 prepares a circuit for the magnets I, II which are short-circuited at this stage. When the subscriber hangs up, one of these is actuated according to the direction of current flow in the line, i.e: according as the call has been successful or unsuccessful. The subscriber cannot escape payment by breaking the loop with the dial because the impulse springs are bridged by a rectifier which is in its low impedance condition for the reversed direction of line current. In a similar circuit, Fig. 4 (not shown), an additional hook switch contact enables the coin-operated springs to be simplified. In a modification, Fig.' 3 (not shown), the coin removes a shunt in the form of a rectifier from the talking instruments. This shunt is ineffective for incoming calls because the line current is in the opposite direction. Magnet I may be omitted, cashing in being controlled by the cradle. In a further modification, Fig. 5 (not shown), the line is not fed with current until a coin has been inserted, such insertion connecting a local ground to one leg of the line. In another arrangement, Fig. 6, the magnets are operated over a local ground and one or other leg instead of over the loop. One leg is grounded by the dial off-normal springs b to prevent release by the dial. In the arrangement shown in Fig. 7, one of the magnets controls a contact F which short-circuits the dial N and talking instruments until a coin has been inserted. The magnets are then short-circuited until the instrument is replaced.
Patent GB-512699-A (GB)
Title: Improvements in accelerometers
IPC: G01L5/28
Filed: 1938-03-17
Abstract: 512,699. Accelerometers. HEIDEN, G. W. R. VAN DER. March 17. 1938, No. 8302. [A Specification was laid open to inspection under Sect. 91 of the Acts. Sept. 26, 1938.] [Class 106 (iii)] For measuring accelerations and retardations, for example for brake testing, a weighted pendulum 2 is used swinging on knife edges 4 and damped by a dashpot 9 and having a slot engaging a twisted strip 11 carrying a pointer 14. The edge of the strip farther from the knife edge has a spiral of greater pitch than the nearer edge to prevent jamming. To take a reading at night a lamp 21 with battery 19 and switch 20 is provided. The casing can be locked at the correct position by a nut 18 in a supporting bracket mounted by suction cups 17 on the dashboard or windscreen. For a permanently mounted casing the pendulum may have a weight 23, Fig. 7. adjustable on a screw' 22-'to give, relatively to the twisted strip 11, a suitable setting.
Patent GB-177531-A (GB)
Title: Improvements in alternating current rectifying apparatus
IPC: H02M7/36
Filed: 1922-03-22
Abstract: 177,531. AndrÚ, H. March 26, 1921, [Convention date]. Electromagnetic interrupters. - A make-and-break switch for rectifying alternating-currents comprises a movable non-polarized contactcarrying armature a disposed between two opposed magnetic fields b, c. The field b is energized from the alternating current to be rectified, while the field c replaces the usual oppositely-acting spring. The winding producing the field b is preferably traversed by continuous and alternating current, the member a being attracted to close the rectified-current circuit when the alternating current is flowing in the same direction as the continuous current. The field c may be produced by a permanent magnet or by an electromagnet energized by continuous current or by continuous current and alternating current superposed. The magnetic leakage of the field c may be varied by means of a magnetic screw d in order to regulate the commutation.
Patent GB-1262191-A (GB)
Title: Process for continuously producing chromic anhydride and apparatus therefore
IPC: C01G37/033
Filed: 1969-02-17
Abstract: 1,262,191. Solid/liquid contact. NIPPON DENKO CO. Ltd. 17 Feb., 1969 [17 Feb., 1968], No. 8390/69. Heading B1F. [Also in Division C1] In apparatus for the preparation of chromic anhydride, sodium dichromate anhydride introduced at 15 is dried by external heat exchanger 13 as it is conveyed by high speed rotary screw conveyor 6 to high speed rotary kneader and conveyer 7 where it is both rapidly mixed with sulphuric acid introduced at 16 and rapidly conveyed by rotating inclined pins 17a to centrifugal continuous evaporator 8 where the reaction product is degassed soon after the reaction is complete to prevent decomposition of the chromic anhydride by being flung by blades 19a to form a thin film on the inside of wall 12. Gases are exhausted at 23 and chromic anhydride reaction product is drawn off at 22.
Patent GB-595184-A (GB)
Title: Improvements in or relating to the manufacture of boots and shoes
IPC: A43B17/02
Filed: 1944-05-04
Abstract: 595,184. Boots and shoes. LOTUS, Ltd., and BOSTOCK, I. May 4, 1944, No. 8458. [Classes 17 (i) and 17 (ii)] A mock wedge heel shoe is made on a last, Fig. 1, the rear end of which has an integral wedge heel former, i.e., the part below the line A B over which the heel cover D which is integral with the upper C is lasted and secured to an insole I. When the last is withdrawn a wedge heel E is inserted to occupy the space vacated by the heel former portion of the last and is secured by adhesive to the insole I, inside counter S 'and lining overlay. A sock G is cemented over the inner cupped face of the wedge heel E and forepart of the insole I. Specification 549,812 is referred to.
Patent GB-199471-A (GB)
Title: Improvements in radio receiving systems
IPC: C09J103/02
Filed: 1922-03-23
Abstract: 199,471. Franklin, C. S., Witt, B. J., Wright, G. M., and Smith, S. B. March 23, 1922. Directive signalling; aerials; multiplex signalling.-Two or more radiogoniometers are connected to a common aerial system of the Bellini- Tosi type so that signals can be received simultaneously from different directions and upon different wave-lengths, the polar curves in each case being rotatable without affecting the other. As shown in Fig. 2, the field coils C, C<1> of the two radiogoniometers B, B' lie in parallel between the two limbs of each of the loop aerials A A', and are coupled through tuned search coils D, D<1> and the primaries F, F' to the two separate receiving circuits G, G'. In order to compensate for reactive effects arising from tight coupling, the search coils D, D' are wound in two sections, the compensating winding d being at right-angles to the active winding, and being connected in a circuit comprising a tuning condenser e, an inductance f, and an adjustable resistance r. In the arrangement shown in Fig. 3, each receiver comprises two radiogomometers, one pair C, C' being connected as before across the aerial loops A, A', whilst the second pair c, c<1> are similarly connected to two equivalent artificial aerials a, a<1>. The two search coils D H and D<1>, H<1> are mechanically connected and are so arranged that the couplings between the coils D, D' and the receiving aerials are opposed through the artificial aerials a, a' in such manner that the mutual reactive effects of the circuits D, E, F, H, and D<1>, E', F<1>, H are reduced to zero. Fig. 5 shows an alternative arrangement in which the radiogonimeters B, B<1> are connected by cables N, N<1> to a distant aerial system, which also includes a plain aerial giving the usual cardioid polar effect and formed by connecting the middle point of each loop to earth through a resistance O in parallel with an inductance P. The goniometer B is linked through the search coil D and an intermediate phase-adjusting circuit K, tuned to the frequency of one signal, to an inductance L<1>; whilst the gonimeter B<1> is similarly linked through a circuit K<1>, tuned to the, frequency of the second signal, to an inductance L<2>. The coils L' L<2> are inductively coupled through the windings P, T, T' with the two loop aerials and with the plain aerial formed by connecting the middle point of each frame inductance to earth. The two search coils D, D' are coupled through separate tuned circuits M, M<1> to the respective receivers G, G<1>.
Patent GB-360324-A (GB)
Title: Apparatus for indicating the direction of the wind at aerodromes
IPC: B64F1/18
Filed: 1931-03-19
Abstract: 360,324. Wind indicators on landing places. AHRENS, E., 14, Henkelstrasse, Cassel, Germany. March 19, 1931, No. 8527. [Class 4.] An apparatus for indicating the direction of the wind at aerodromes by generating clouds of smoke and steam comprises an oven e, as shown, which can be installed below the surface of the ground and covered over, and which contains an evaporation and combustion device for smoke-generating fuels. As shown, the oven e is installed in a cementlined pit a having a hinged or removable cover c in which is an orifice situated above a smoke flue d having lateral vent holes w. A tank for containing the smoke-generating fuel, a. benzine container, and a compressed air container are housed in an adjacent pit similarly covered. The oven e comprises a fuel ring f having outlets for the oil or other fuel which is conveyed thereto from an annular pipe h in turn supplied from the fuel tank by siphon action. Stepped evaporating rings or plates m having corrugations n are arranged below ring f and are heated by four groups of burners p. The compressed air container is connected through a pressure-reducing valve to the benzine container, the compressed air forcing the benzine through a pipe r to the burners p. The heavy oil flows from the ring f downwardly over the plates m and the combustion products are carried upwardly through flue d assisted by the pressure effect of the burners p. In place of having spaces o between the plates m the plates may be slotted or may be shaped as ring sections. The oven may be lighted electrically from a distance.
Patent GB-326030-A (GB)
Title: Improvements in and relating to metallic packings for stuffing boxes and the like
IPC: F16J15/28
Filed: 1929-03-16
Abstract: 326,030. Thomas, F. W. March 16, 1929. Packing, metallic.-Packing comprises two segmental rings 1, 7, compressed by garter springs 3, 9, and arranged side by side to break joint. The ring 7 is provided with bridge pieces 8 located in recesses in the ends of the segments. Relative rotation is prevented by means of a pin 6, carried by the ring 7 and engaging in the space between two of the segments of the ring 1. The ends of the segments are radial, and may be bevelled. Specification 277/06 is referred 'to.
Patent GB-1374911-A (GB)
Title: Apparatus for sucking up a mixture of water and solids
IPC: E02F3/90
Filed: 1972-02-24
Abstract: 1374911 Centrifugal pumps HOLLANDSCHE AANNEMING MAATSCHAPPIJ N V 24 Feb 1972 [9 March 1971] 8699/72 Heading F1C [Also in Division B2] In a pumping apparatus for pumping liquidsolid mixtures from submerged layers of solid e.g. sand, of the kind in which a bypass conduit 9 connects the pump discharge pipe 5 to its suction 4 pipe to return some of the pumped liquid to the suction, has means to reduce the concentration of solids in the bypass conduit as compared with the mixture in the discharge pipe. The bypass conduit 9 which discharges through an injector 11 into the suction pipe 4 at its inlet end, contains an automatic regulator 10 which operates to reduce the quantity bypassed when the flow-rate in discharge pipe 5 falls below a predetermined value. The centrifugal pump 3 is driven by a motor 2. The percentage of solids in the bypass is reduced below that in the discharge pipe by connecting the bypass conduit to the discharge pipe at a construction formed by a Venturi tube 23. A cyclone 21 may be provided to separate out the solids where the bypass 24 connects with the discharge pipe 16. Duct 18 having a screen 19 and inspection cover 20 connects with discharge pipe 16 in the vicinity of constrictor 23. Solids separated in the cyclone are returned to pipe 16 through outlet 22 so that liquid entering the bypass 24 is substantially free of solids.
Patent GB-281524-A (GB)
Title: An improved curd knife
IPC: A01J25/06
Filed: 1927-03-30
Abstract: 281,524. Pond, W. P. March 30, 1927. Cheese. - A curd knife comprises a rectangular frame having two sets of parallel blades or wires a, b running in different directions and in different planes, adapted to cut cubes or diamond-shaped prisms of material by a single cutting operation.