baber/WOPTO huggingface dataset:
Patent GB-1262286-A (GB)
Title: Photographic processing apparatus
Inventor: HARVEY ERIC ALFRED
IPC: G03D5/06
Filed: 1968-04-26
Abstract: 1,262,286. Photographic processing apparatus. ILFORD Ltd. April 18, 1969 [April 26, 1968], No. 19911/68. Heading G2A. Photographic processing apparatus has at least three rollers 3, 4, 5 disposed in contact with developing solution 2 and at least two rollers disposed in contact with stop solution 7, wherein the roller 5 which is last in the sequence of rollers in the developer bath with respect to the direction of travel of the photographic material 11 rotates in a direction counter to the direction of travel and has a smooth surface, the other rollers having a non- smooth surface. The non-smooth rollers are grooved or gravured or rubber coated being of the rubber cats-tongue or rubber whisker type, or they are coated with felt. The smooth roller is of stainless steel. The smooth roller rotates at most at half the speed of the non-smooth rollers, e. g. 10 revs. per min. as compared with 50 revs. per min.
Patent GB-835978-A (GB)
Title: Improvements in automatic gun'breech block control mechanism
Inventor: KUIJVENHOVEN AREND WILLEM
IPC: F41A19/03
Filed: 1958-06-23
Abstract: 835,978. Automatic firearms. BREVETS AERO-MECANIQUES S. A. June 23, 1958, No. 20012/58. Class 92 Relates to means for preventing mutual damage of contacting faces when a sear is released into the path of a rapidly moving breech block at an inappropriate instant. An automatic weapon with a recoiling breech block 16 which is stopped in its return by axial opposition of shoulders 6 and 7 when a sear 4 moves into its path has a spring-loaded guard 13 on one of the said shoulders to yield in contact with the other shoulder either to bar the sear's entry during a given period of close approach of the shoulders, or, after the sear's entry prior to the said period, to yield to permit effective opposition of the shoulders. The sear on release is raised towards the breech block by a spring 9 and to limit shock is mounted for restricted travel against a spring 8. To increase its degree of engagement with the breech block its heel 12 rides on a ramp 11 as it moves forward. Figs. 4 and 5 illustrate the condition when the sear has been released late so that the guard 13, in this instance housed in a slot 4a in the sear 4 and pivoted at 14 against a spring plunger 15, contacts the under surface of the bolt so as to withdraw the shoulders 6 and 7 out of contact. Fig. 7 shows the sear entering the recess in the breech block when it has been released in good time and the guard 13 hinging to permit ultimate surface-to-surface contact to the surfaces 6 and 7. Figs. 10 to 12 (not shown) illustrate an embodiment in which the surface 7 of the sear is cut back so that the guard 13 can be mounted ahead of it, instead of in a slot. In this instance the leading face of the guard, and not the surface 7, contacts the surface 6. Figs. 13 and 14 (not shown) illustrate embodiments in which the guard is mounted on the bolt instead of on the sear.
Patent GB-1300327-A (GB)
Title: Method of correcting clays with mining by-products to permit their expansion, and products obtained thereby
IPC: C04B20/06
Filed: 1970-04-27
Abstract: 1300327 Expanded clays HOUILLERES DU BASSIN DU NORD ET DU PAS-DECALAIS and CHARBONNAGES DE FRANCE 27 April 1970 [28 April 1969] 20087/70 Heading C1J Expanded clays are made by mining clays with coal shale or fly ash which contain a quantity of unburnt carbon, and heating in an oxidizing atmosphere to initiate combustion of a proportion of the carbon so that the temperature reaches above 1000‹ C. by this combustion alone; and subsequently subjecting the mixture to a second heat treatment again in an oxidizing atmosphere at over 1300‹ C. wherein expansion of the clays occurs. The coal shale is floating shale added in amounts of 20 wt. per cent of crushed buddle shale with a grain size not exceeding 20 mm. which is converted into powder with a grain size under 800 microns, at least 50% of which has a grain size under 200 microns.
Patent GB-478071-A (GB)
Title: Improvements in ammunition packing and transport cases
IPC: F42B39/26
Filed: 1936-07-21
Abstract: 478,071. Ammunition boxes. WILLIAMS, A. H. July 21, 1936, No. 20161. [Class 9 (i)] A metal ammunition storage and transport case adapted to contain a plurality of rounds of ammunition comprises an outer shell provided with end caps which themselves form the sole closure members of the ends thereof, one at least of said end caps being held in position by means of one or more longitudinally arranged bolts in such a manner that, when the bolt or bolts is or are screwed up, the said end cap or caps is or are firmly held in position against the end or ends of the outer shell whilst, when the bolt or bolts is or are unscrewed, the one end cap at least may be easily removed to give a ready access to the rounds of ammunition the case having suspended therein a plurality of tubular housings, each adapted to receive a round of ammunition, the forward ends of these housings being shaped to correspond to the tapering noses of the shells and being provided with inset steel or like solid rings to prevent the shells binding with the housings and to take all thrust and shock on the rounds. The Figure shows a substantially rectangular case 11 adapted to contain a number of rounds of ammunition 10 in two superposed layers, the sides and top and bottom of the case being provided with spaced indentations or ribs, some of which are shown at 12. The open ends of this case are stepped in slightly at 14 and are closed by caps 15 provided with turned back edges 16 adapted to fit over the ends 14. Pivoted handles 18 are adapted to lie in recesses 17 in the centre of the caps. As shown, the right-hand cap is permanently fixed in position whilst the left-hand cap is held in position by a pair of spaced longitudinally arranged bolts 19a, the heads of which abut against a transverse web 20 in the case whilst the screwed ends thereof are engaged by wing nuts 21 rotatably mounted in the left-hand cap. The caps are also provided with pressed out parts 22 which lie opposite the primer in the end of the cartridge of the rounds 10 and the fuzes 23 at the noses of the shells respectively. Each round 10 is housed within a sheet-metal tube 30 preferably ribbed as at 31 at one or more points so as to prevent the tubes contacting with the rounds over too great a surface. These tubes are suspended in the case by means of the apertured transverse webs 20, 40 and the forward ends of the tubes are shaped as shown to correspond to the tapering noses of the shells and are provided with inset solid steel rings 60 housed in peripheral recesses 61 in the tubes. If desired, a steel wire ring may be provided around the tubes just in advance of the recesses 61. According to a modification, the bolts 19a may extend between the two end caps themselves.
Patent GB-730439-A (GB)
Title: Mixtures of resinous styrene-acrylonitrile copolymers and saturated rubbers
IPC: C08L25/12
Filed: 1953-07-21
Abstract: A composition resistant to ageing comprises 50 to 90 per cent of a resinous copolymer containing 50 to 90 per cent styrene and 50 to 10 per cent acrylonitrile, intimately admixed with 50 to 10 per cent of an elastomeric portion composed of 85 to 35 per cent of butadieneacrylonitrile copolymer and 15 to 65 per cent of a saturated rubber selected from lower alkyl acrylate homopolymers, e.g. ethyl and n-butyl acrylates, and copolymers thereof with 4 to 20 per cent of a monomer such as acrylonitrile, 3-chloropropyl acrylate or 2-chloroethyl vinyl ether, and wherein the acrylate type rubber constitutes between 5 and 20 per cent of the total mixture.  The materials may be mixed in the form of solids, latices, dispersions or solutions and optional ingredients are stabilizers, anti-oxidants, plasticizers, abrasives, fillers, reinforcing agents and pigments, e.g. carbon black, wood flour, diatomaceous earth and fibres.  The compositions may be cured with sulphur, benzothiazyl disulphide, amines, bivalent metal hydroxides plus stearic acid, quinone dioxime, metal oxides and benzoyl peroxide.  The compositions may be used in making machinery parts, chemically resistant articles such as filter press plates and tumbling barrels, electrical parts, cabinets, furniture, records, automobile steering wheels, roller skate wheels, helmets and printing plates.  U.S.A. Specifications 2,439,202 and 2,550,139 are referred to.
Patent GB-655212-A (GB)
Title: An improved apparatus for use in determining the bearing capacity of soil at variousdepths
IPC: E02D1/02
Filed: 1948-07-28
Abstract: 655,212. Testing physical qualities of materials. NEDERLANDSCHE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. July 28, 1948, No. 20184. Convention date, July 28, 1947. [Class 106 (ii)] An apparatus for use in determining the bearing capacity of soil at various depths comprises a pressure body 5, a tubular member 4 having a lower end adapted tc engage said body and drive it intc the soil and means for effecting limited axial displacement of the said body with respect to the said tubular member, and the pressure body 5 has a hollow internally. cylindrical extension 7 which sur. rounds, and is slidable on, the end part of the tubular member, the length of the extension being greater than the displacement of the body relative to the said member. The body 5 is of conical form and the extension 7 tapers upwardly and fits closely over the tube 4 which is secured to a larger tube 2. To make a test, the tube 2 is first forced down, carrying with it the body 5, to the depth at which the test is to be made. The force required further to depress the body 5, by means of a rod 1 engaging an enlarged end 6 of a rod 3 secured to the body, is then determined and is a measure of the required bearing capacity. On withdrawing the tube 2, the end of the tube 4 engages the enlarged part 6 of the rod 3 and so withdraws the body 5. The extension 7 prevents the entry of soil between the rod 3 and tube 4. The base of the conical body 5 is of larger diameter than any part of the extension 7 so that, when a test is made, there is substantially no adhesion to the sides of the extension.
Patent GB-825356-A (GB)
Title: Process for the production of crystals
IPC: C30B23/06
Filed: 1958-06-25
Abstract: Crystals of semi-conductor material are prepared by depositing a layer less than 0.1 mm. thick of the material by vacuum evaporation on a substrate, activating the layer by deposition by vacuum evaporation of an activator material to promote the crystal growth of the layer and transforming the layer by heating in an inert atmosphere into crystals having a main diameter larger than the thickness, the crystals growing in a direction parallel to the surface of the substrate.  The semi-conductor material is cadmium sulphide, zinc sulphide, lead sulphide, germanium, silicon or tellurium, and the activator is silver, copper, lead, zinc, aluminium, gallium, indium, boron, phosphorus or antimony.  The substrate may be polished glass.  The amount of activator material is of the order of 10-3 atoms per cent based on the semi-conductor material.  The vacuum evaporation is effected at a pressure below 10-4 mms. of mercury.  The substrate is heated to 100 DEG  to 200 DEG C. prior to the deposition.  The layer is heated in argon at a temperature whereat a maximum of 10 crystals per square centimetre are produced, and the velocity of growth of the crystal front is less than 0.1 mm. per second.
Patent GB-597003-A (GB)
Title: Improvements in or relating to chairs or the like
IPC: A47C9/02
Filed: 1945-08-08
Abstract: 597,003. Furniture combinations. CORLETT & CO., Ltd., F., and BENTHAM, J. Aug. 8, 1945, No. 20299. [Class 52(iii)] A chair or stool embodying a c o mpartment or box comprises a body formed from a folded metal sheet and having a partition to form a bottom of the. box and legs of angle section as extensions of the body together with a hinged lid. As shown the body a is formed of sheet metal in truncated pyramidical form extensions of angle form forming the legs b. A bottom f is welded in position by means of flanges f and a hinged lid g is provided. The legs b are reinforced by struts e welded in place by means of flanges e<1> and by triangular feet c. A back may be provided comprising uprights of strip metal the ends being twisted and bent and welded or bolted to the body a the back rest i being secured to the upper ends of the strips j, j<1>.
Patent GB-275264-A (GB)
Title: Improvements in and relating to alternating current motors
IPC: H02K17/06
Filed: 1927-08-02
Abstract: 275,264. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen, (Assignees of Rieuks, W.). July 30, 1926, [Convention date]. Motors. controlling.-In an alternating current induction motor adapted to have its pole number changed by a reversal of current in part of the stator winding, an additional winding is provided in the stator slots which is connected in series with the main winding when the motor operates on the largest pole number, so that with a constant supply voltage the same torque is produced on each pole number. In the form shown. C - - F represent the coils of one phase of the main winding, and G, H, J, K the coils of the additional winding. In order tc obtain a sinusoidal field distribution for a 4-pole operation, the number of conductors per slot of the main winding decreases from a maximum in the outside slots 1. 8, 9, 16, &c. to a minimum in slots 3, 6, 11, 14. &c., whereas slots 4, 5, 12, 13, &c. carry no main coil conductors. To maintain the sinusoidal field distribution during 8-pole operation, the additional winding is arranged so that the total number of conductors per slot is greater in slots 2, 3, 6, 7, &c. than in slots 1, 4, 5, 8, &c. In a modification, the auxiliary coils are co-axial with the main coils, and this construction is stated to reduce the length of the coil heads. A starting winding may be provided, adapted to be changed over in the same manner as the main phase.
Patent GB-221493-A (GB)
Title: Improvements in or relating to gas-fired liquid heaters
IPC: F24H1/10
Filed: 1924-08-28
Abstract: 221,493. Deutsch, S. Sept. 4, 1923. [Convention date]. Heating liquids.-Gasfired liquid heaters, in which the liquid is sprayed in direct contact with combustion products, are provided with conduits 9, preferably passing through the heating chamber, through which a portion of the gases are led directly from the burner 2 to the chimney 10 without contact with the sprayed liquid', to ensure a satisfactory draught. In the example shown, liquid is sprayed downward from a nozzle 13 and, falling around shields 11 about the conduits 9, is collected in a cup 6 before passing to the delivery pipe 8. Combustion products from the burner 2 pass between the cup 6 and the casing and both inside and outside the shields 11, part also passing direct to the chimney by the conduits 9. That part that flows within the shields. 11 serves to heat the liquid indirectly only, through the metal of the shields.
Patent GB-1349034-A (GB)
Title: Semi-encoded facsimile transmission
IPC: H04N1/413
Filed: 1971-04-19
Abstract: 1349034 Facsimile transmission XEROX CORP 19 April 1971 [29 Jan 1970] 20407/71 Headings H4P and H4F [Also in Division G4] Time-modulated pulses representing the black, or alternatively white runs of a facsimile signal are encoded and transmitted as amplitude modulated pulses. The amplitude is either one of a number of predetermined amplitudes or a continuous analogue. There is a maximum amplitude to the pulses and any run exceeding the maximum is encoded by further pulses. In one arrangement described the maximum amplitude corresponds to a time period of two units, with one of two predetermined amplitudes being the maximum and the other corresponding to one time unit. Any run remainder less than ¢ a time unit is eliminated using predetermined amplitudes, but using analogue amplitudes it is encodable by encoding periods of 2¢ time units overlapping successive 2¢ periods by ¢ a time unit. Individual black runs of less than ¢ a time unit are eliminated before encoding. The amplitude modulated pulses are alternated in polarity for transmission to avoid mutual interference, lack of this polarity alternation in the received signal generates an error condition. If the speed of transmission is slow enough the alternation is unnecessary. At the receiver the received amplitude modulated pulses are differentiated to generate synchronizing signals.
Patent GB-1525655-A (GB)
Title: Polyetherimide-polyester blends
IPC: C08L79/08
Filed: 1976-05-18
Abstract: 1525655 Polyesters-polyetherimide blends GENERAL ELECTRIC CO 18 May 1976 [22 May 1975] 20472/76 Heading C3R A composition comprises (a) a polyalkylene iso/terephthalate and (b) a polyetherimide having a repeating unit of the formula in which Z is a linking group containing at least one phenylene ring and R is a divalent organic radical. The composition may contain from 1 to 99% by weight of the polyester and from 99 to 1% by weight of the polyetherimide. The examples describe compositions comprising (a) polyethylene terephthalate or polybutylene terephthalate and (b) polyetherimide of the formula  The composition may be coated on electrical conductors and may contain conventional fillers.
Patent GB-499497-A (GB)
Title: Improvements in closures for jars, bottles, cans and like containers
IPC: B65D43/02
Filed: 1937-07-24
Abstract: 499,497. Closures for jars, bottles, &c. SUTCLIFFE. J. W., and SUTCLIFFE, T. C., (trading as SUTCLIFFE & CO., J. W.). July 24, 1937, No. 20522. [Class 125 (iii)] A closure for jars, bottles, cans or like containers comprises a cap 1, Fig. 3, having a groove 2, formed adjacent to the lower edge of the skirt of the cap 1 and spaced away from the top of the cap and which accommodates an elastic packing ring 3, Fig. 2, of greater radial thickness than the depth of the groove 2, but of substantially equal width to the axial width of the groove thus allowing the cap freedom of axial displacement along a conical surface 5 on the container neck until the packing ring is accommodated thereon in sealing contact, Fig. 8. A securing band enclosing the flanges 9, 10 may be provided. The packing ring may be of circular cross-section while in a further modified form the bottom edge 4 of the groove 2 may be omitted. The container is formed with a portion 17 of cylindrical form or of lesser conicity than the part 5 to guide the cap on to the container. A projection or beading 18, Fig. 9, may be provided for resealing. The closure is particularly suitable for use as a vacuum closure but may be used as a non-vacuum closure held in sealing position by a retaining band.
Patent GB-1256038-A (GB)
Title: Power pack for use in explosive atmosphere
IPC: H02H3/02
Filed: 1970-04-29
Abstract: 1,256,038. Batteries. MINE SAFETY APPLIANCES CO. 29 April, 1970 [5 May, 1969], No. 20632/70. Heading H1B. [Also in Division H2] A power pack that is safe for operating apparatus in an explosive atmosphere comprises a battery of cells 2, a resistor 5 in series with the battery and having a resistance only great enough to limit a short-circuit current to a value insufficient to cause ignition, and a bimetallic switch 6 opened by the heat produced in it by the limited current before the resistor can overheat, the switch reclosing on cooling.
Patent GB-1494799-A (GB)
Title: Bulldozer and reel carrier assembly
IPC: E02F5/14
Filed: 1975-05-15
Abstract: 1494799 Dozer-cable reel carrier assembly J I CASE CO 15 May 1975 [6 June 1974] 20724/75 Heading E1F A dozer-cable reel carrier assembly comprises a dozer blade-supporting frame 22, a pair of spaced parallel arms 52 extending from the frame, a beam 62 mounted between the arms and situated above the blade, and a pair of spaced, parallel, reel support arms 68 extending from the beam. Preferably the beam is rotatably mounted in the arms, can be locked thereto in pre selected positions, can be rotated to these positions manually or by power means, and is hollow to house the reel supporting shaft 76 when no reel is to be mounted at the ends of the arms 68. The arms 52 may be pivotally mounted on the frame so that they can individually swing vertically should they impede tilting of the blade about the longitudinal central axis of the assembly.
Patent GB-624507-A (GB)
Title: Improvements in electric regulators
IPC: H02P9/22
Filed: 1946-07-11
Abstract: 624,507. Automatic regulators. NEWTON, F. July 11, 1946, No. 20783. [Class 38 (iv)] A carbon pile electric regulator comprises a spring and an electromagnet acting oppositely on the carbon pile, the spring being made, at least in part, of bimetallic strips to compensate for temperature variations. The spring 8, secured to blocks 7 having slightly inclined upper surfaces, consists of three layers of laminations, one of steel, the other two of different metals, e.g. steel and a steel-nickel alloy, united to form a bimetallic lamination. The load deflection characteristic at different temperatures may be modified by tapering either the steel or the bimetallic laminations. Specifications 514,482 and 544,170 are referred to.
Patent GB-716157-A (GB)
Title: Improvements in or relating to the degasification of solid fuels
IPC: C10B49/10
Filed: 1952-08-20
Abstract: 716,157. Distilling finely divided coal. MAATSCHAPPIJ VOOR KOLENBEWERKING STAMICARBON N. V. Aug. 20, 1952 [Aug. 25, 1951], No. 20890/52. Class 55 (1)  In carbonizing coal on a fluidized bed into which an oxygen-containing gas is continuously injected at the lower end of the retort both for fluidizing and for combustion of part of the fuel, the gas mixture contains sufficient oxygen to yie'd a carbonizing temperature for the rest of the coal of at least 700‹ C. Fluidizing mixture is injected together with fuel suspended therein through burners 3 into a vessel 1, coke flowing continuously into a receiver 7 by means of a screw conveyer 6, and steam being admitted through a pipe 8. The fluidizing gas may comprise air, or mixtures of oxygen and air, steam or carbon dioxide. Specification 585,354 is referred to.