baber/WOPTO huggingface dataset:
Patent GB-796226-A (GB)
Title: Internal combustion free-piston engine
IPC: F02C5/08
Filed: 1955-04-26
Abstract: 796,226. Free-piston engines. AMERICAN MACHINE & FOUNDRY CO. April 26, 1955 [July 26, 1954], No. 11980/55. Classes 7(1) and 7(2) An internal - combustion free - piston engine comprises a cylinder, a pair of opposed pistons reciprocably mounted in the cylinder, the pistons including pumping and bounce means, the pumping means being adapted to pump a hydraulic fluid into a first duct and first accumulator means capable of storing hydraulic fluid under pressure, the bounce means being adapted to receive hydraulic fluid under pressure to cause a compression stroke of the pistons, and an automatic control mechanism operated by the hydraulic fluid under pressure, the control mechanism being adapted to cut off the hydraulic fluid to the bounce means when the pressure produced by the pumping means exceeds a predetermined maximum pressure and to open communication for the hydraulic fluid when the pressure is less than a predetermined minimum pressure. In Fig. 1, when the pressure control valve 66 has received the signal-that the accumulator pressure has reached a minimum value and requires recharging from the engine valve 80 is opened and hydraulic fluid flows from the accumulator 50 and forces return pistons 30 inwardly thereby driving pistons 22 through their compression stroke. After ignition hydraulic fluid from pump cylinders 28 is forced into pneumatic accumulator 50 through check valve 60. Hydraulic fluid from the return cylinders is returned to the accumulator 50 through the valve 66. When accumulator 50 reaches full charge the pressure control valve 66 will close and thereby stop the engine. A hydraulic pump motor 44 may be driven by hydraulic fluid from the accumulator 50. When the turbine 42 is in operation pump motor 44 pumps fluid into the accumulator. The hydraulic motor 78 may be of any well-known type, it may be a hydraulic turbine. In a modification Fig. 2, (not shown), there may be a second hydraulic accumulator whose sole purpose is to drive the pistons through the compression stroke. The exhaust turbine 42 may be omitted. In Fig. 3, if the high pressure accumulator 350 is not fully charged the control valve 376 opens at the end of the power stroke of the engine. Fluid from the low pressure accumulator 398 then drives the pistons 322 on the compression portion of the cycle. Scavenging air is supplied by the compressors 347. Fig. 6 shows a modified form of piston which may be used in the arrangement of Figs. 1 and 2. Fluid is forced under high pressure through conduit 458 to the high pressure accumulator. Fluid which drives the pistons on the return stroke is supplied to an annular space 403. In Fig. 8, hydraulic fluid enters through conduit 564 into the cylinder 506 and drives the piston on its compression stroke. Fluid from the sump enters cylinder 505 through conduit 557. On the firing portion of the engine cycle this fluid is forced through the cylinder 507 to a high pressure accumulator.
Patent GB-961377-A (GB)
Title: Improvements in or relating to apparatus for conveying articles to and from a work station
Inventor: BOZEK JOHN STANLEY
IPC: B41F17/18
Filed: 1962-07-16
Abstract: 961,377. Printing on curved surfaces. CONTINENTAL CAN CO. Inc. July 16, 1962, No. 11994/63. Divided out of 961,376. Heading B6C. Apparatus for conveying articles having arcuate surfaces, e.g. plastic bottles, to and from printing stations at which printing drums 20 and 21 are located comprises a feed shoot 22 for the bottles B, and a turret 23 having first bottle supports 42 for receiving the bottles from the shoot 22 and delivering them to bottle supports 156 on a conveyer 24 arranged to move them through the printing stations and second bottle supports 43 for removing the printed bottles from the conveyer 24 and delivering them to a pick-up device 25 which in turn delivers them to a discharge shoot 26. The operation of the apparatus is described in Specification 961,378.
Patent GB-594427-A (GB)
Title: Improvements in slide rules
IPC: G06G1/04
Filed: 1945-05-15
Abstract: 594,427. Slide rules. DUSAND, F. May 15, 1946, No. 12142. Convention date, March 23, 1944. [Class 106 (i)] A slide rule comprises two fixed bars 1, 2 secured to end pieces 3, 4, the left-hand piece 3 having in each side a window 7, the edge 71 of which forms a reading line. The end pieces 3, 4 form stops for the cursor 6 which has in each side a window 8 with a bevelled edge 8<1> forming a reading line. A flexible steel strip 10 is fixed across an opening 9 in each side of the cursor and is backed with rubber pads so that, when the strips are pressed together, the pads engage the slide 5 and couple the cursor thereto by friction. When the cursor touches the end piece 3, the reading line 8<1> is above the initial lines on the scales marked on the fixed bars 1, 2. The top edge of the fixed bar 1 and the bottom edge of the fixed bar 2 may have linear scales and the corresponding parts of the cursor may have windows and reading edges similar to the side windows 8 and edges 8<1>.
Patent GB-1407142-A (GB)
Title: Catalytic reactor
IPC: B01J8/02
Filed: 1973-03-14
Abstract: 1407142 Catalytic reactor LUMMUS CO 14 March 1973 [15 March 1972] 12159/73 Heading B1F The invention relates to a two stage catalytic reactor, Fig. 3, in which the stages are the upper and lower parts of annular catalytic bed 32 which are separated by a seal plug 34, Fig. 4, positioned at the same level as the broadest part of conduit 14, Fig. 3, and in which reactant mixture introduced through 10 passes through heat exchanger 12 to pass via conduit 14 and inlet chamber through the lower part of catalyst bed 32 to outlet chamber 54A, thence via 58, chamber 56B, the other side of heat exchanger 12 and inlet chamber 48 to the upper part of catalyst bed 32, whence the gas passes to outlet chamber 54B and exits at 24. Seal plug 34, Fig. 4, comprises layers 60 of overlapping pieces of metal wool, intermediate layers 62 of catalyst fines and a central layer 64 of metal foil pieces. Catalyst is charged through 40 to form the bed 42, charging the materials of the plug 34 at a suitable interval, and catalyst and plug are withdrawn through 42.
Patent GB-1302232-A (GB)
IPC: B22D7/10
Filed: 1970-03-13
Abstract: 1302232 Ingot moulds; hot tops WHITACRE-GREER FIREPROOFING CO 13 March 1970 [17 March 1969] 12209/70 Heading B3F [Also in Division C3] A hot-top 10 (shown inverted) is provided around its bottom edge with a metallic strip 22 of 3/32 inch thickness. The hot top can be consumable and also include a flange 21 extending around the outside lower edge. A corrugated metal strip 30 is spot-welded to and surrounds the flange 21. In operation, a ledge 18 rests on the top of an ingot mould (not shown) and the flange 21 and corrugated strip 30 are located in the peripheral gap between the mould and the lower part of the hot-top. The metal strips 21, 22, 30 chill metal poured into the mould at the boundary between the mould and hot top to prevent break-out of the molten metal. An exothermic lining 12 may be provided in the hot-top.
Patent GB-1106955-A (GB)
Title: Process for compacting and stiffening of loose natural or artificial soils
IPC: C09K17/12
Filed: 1965-03-23
Abstract: 1,106,955. Earth working. K. F. KEIL. 23 March, 1965, No. 12217/65. Heading E1F. A luting mixture is prepared by mixing a loose natural or artificial, soil possessing little or no binding power with a hydrating clay and with solutions of water glass and of a hydrating chemical, as defined below, so as to form a liquid paste which will set to a stiff yet plastic mass, the amount of water glass added being between 2 and 3.5% of the total weight of solids, and the hydrating chemical being between 2 and 3.5% by weight of the water glass. By hydrating chemicals is meant potassium or sodium carbonates or equivalent chemicals or salts which, co-operating with the hydrating clay and water glass, precipitate an inhibitive silica gel of unlimited deformability, without stiffening to a non-plastic and inelastic silica gel. Bentonite or clays containing lime or magnesium or marls, may be used. The luting materials may be used in hydraulic engineering, and are advantageously protected by a foil of a plastics material.
Patent GB-212158-A (GB)
Title: Improvements in shank piece for shoes
IPC: A43B7/14
Filed: 1923-05-07
Abstract: 212,158. Ross, B. May 7, 1923. Foot-arch supports.-A shank piece for shoes designed to support the arch of the foot comprises two members 10, 20 secured by their outer ends respectively to the heel and the sole portions of the sole. The member 10 has a. rib 13 which causes the forward end, which is formed with inturned lugs 27, to stand away from the sole and the free end of the member 20, which is curved to bridge the shank of the shoe, slides within the lugs 27.
Patent GB-379259-A (GB)
Title: Improvements in walking-stick and like seats
IPC: A45B5/00
Filed: 1932-04-28
Abstract: 379,259. Walking-stick seats. BAHR, F., 19, Tuchlauben, Vienna. April 28, 1932, No. 12246. Convention date, April 30, 1931. [Class 52 (ii).] In a walking-stick seat comprising hinged members a, the upper end of the shaft is threaded at f and carries a nut g, h adapted to bear against the lower surfaces of the members a and lock them in either of their positions of use. A washer k may be interposed between the parts h and a, and the actual hinges may comprise bolts c passing through plates b secured to the shaft by lugs i.
Patent GB-270750-A (GB)
IPC: C09B69/06
Filed: 1927-05-07
Abstract: 270,750. I. G. Farbenindustrie Akt.- Ges. May 10, 1926, [Convention date]. Lakes.-In the production of colour lakes from basic dyestuffs, which may contain acid groups, by treatment with phosphotungstic, phosphotungstomolybdic or other complex inorganic acids, or compounds capable of producing such complex acids, the fastness of the lakes is increased by submitting them to a pressure treatment at a high temperature during or after their production, in the latter case in the presence of moisture. The treatment may be carried out in the presence of the usual substrata, and dispersing agents, e.g. glue, gum arabic, sulphite-cellulose waste liquor, turkey red oil, cholates, trioxyethylamine, and the. like may also be present. In many cases it is advantageous to add, either during the preparation of the lake or during the subsequent treatment under pressure, salts, particularly such complex-formers, e.g. salts of molybdenum in the case of tungsten lakes, as are either absent, or present in insufficient quantity, in the lake. The temperature, pressure and duration of the treatment may be varied within wide limits; the temperatures employed should be above 50‹ C. and preferably about 100‹ C. In examples, (1) the lake prepared by precipitating Methyl violet B on aluminium hydroxide or blanc fixe with complex tungstic acid is heated, in paste form, in an autoclave for one to four hours under a pressure of three atmospheres; the product is faster to light and alkalies than the original lake, and the fastness to light may be still further increased by adding a small quantity of a molybdenum salt, e.g. ammonium molybdate. to the lake before treatment, and (2) the lake obtained by precipitating tetraethyldiaminodiphenylethyl-alpha-amidonaphthyl carbinol on a substratum of heavy spar, aluminium hydroxide and blanc fixe, by means of solutions of ammonium molybdate, disodium phosphate, and hydrochloric acid, is heated in paste form from three to four hours under a pressure of three atmospheres: the product is faster to light and alkalies than the untreated lake.
Patent GB-1453747-A (GB)
Title: Ball bushing device
IPC: F16C29/06
Filed: 1974-03-20
Abstract: 1453747 Bearings SKF NOVA AB 20 March 1974 [24 April 1973] 12375/74 Heading F2A A ball bearing bushing comprises a sleeve 1, a shaft 2, balls 3 guided in a holder (not shown) arranged between the sleeve and shaft, and raceways consisting of curved elastic plates 4 inserted into the sleeve such that in unloaded state their central portions are located closer to the shaft surface than their end portions, and the central portions are spaced from the bore of the sleeve. The plates 4, which are of hardened steel, are guided in grooves in the bore of the sleeve. They are axially located by means of an end flange on the holder, and a washer inserted in the other end of the sleeve. Alternatively, the end portions of the plates may be folded such that the resulting flaps engage the sleeve and holder respectively.
Patent GB-542932-A (GB)
Title: Improved resinous condensation products and methods of producing same
IPC: C08G12/12
Filed: 1940-07-31
Abstract: 542,932. Urea-aldehyde condensation products. BRITISH THOMSON-HOUSTON CO., Ltd. July 31, 1940, No. 12380. Convention date, Aug. 9, 1939.. [Class 2 (iii)] Self-curing resinous condensation products are produced by the condensation of a urea, an aliphatic aldehyde and an aldehyde reactable halogenated acylated urea in which at least one halogen atom is attached to an alpha or a beta carbon atom. Numerous examples of such acylated ureas are given. Specified urea compounds are urea, thiourea, acetyl-, benzoyl-, phenyl-, assymetrical diethyl-, allyl-, 2-chloro-allyl-, ethylidene-, methylol-, and methylene ureas ; guanidine, dicyandiamide, guanyl urea, guanylthiourea, biguanidine, aminoguanidine, aminotriazole, creatine, creatinine, guanoline, ethylene pseudo-sulphocarbamide derivatives, sulphohydantoin and triazine derivatives. Aldehydes specified comprise paraformaldehyde, hexamethylenetetramine, acetaldehyde, propionaldehyde, butyraldehyde, acrolein, methacrolein, crotonaldehydes or mixtures thereof. The condensation may be carried out under neutral, alkaline or acid conditions, e.g. in presence of 'alkalies, acids or amines. The mixed reactants may be condensed together. Alternatively the acylated urea may be added to a partial urea-aldehyde condensation product or the acylated urea and aldehyde may be condensed and the urea re-acted with the condensation product. In examples (1) 60 parts urea, 7.6 parts ammonia (28 per cent.), 161 parts aqueous formaldehyde and 0.04 parts sodium hydroxide are mixed and re-fluxed together for 20-30 mins.,. and one part of mono chlor acetyl urea added to the mixture. 61 parts of alpha flock and 0.4 parts zinc stearate are then added and the mixture heated to 50‹ C. and dried to form a moulding composition. (4) Similar proportions are used with chloroacetyl-ethyl-hydantoate. Up to “ mol. of the halogenated urea may be used per mol. urea. Modifying agents may be added, e.g. monohydric or polyhydric alcohols ; monoamides, e.g. formamide, acetamide, stearamide, acylic acid amides, benzamide, toluene sulphonamide or polyamides, e.g. adipic diamide, or phthalamide, or amines, e.g. ethylene diamine, aniline, phenylenediamine or aminophenols ; condensation products of aldehydes with proteins, furfural, aniline, phenol, sulphonamide ; polyhydric alcohol. polybasic acid condensation products cellulose derivatives ; natural gums and resins polyvinyl compounds ; synthetic linear condensation products known as " nylon " ; dyes, pigments, opacifiers, mould lubricants and fibrous fillers. The products may be used for making buttons, clock cases, radio cabinets, arc extinguishing tubes, liquid compositions may be employed as varnishes, lacquers, anti-creasing agents &c. Many of the acylated ureas specified in the Specification as open to inspection under Sect. 91 do not appear in the Specification as accepted.
Patent GB-129831-A (GB)
Title: Improvements relating to the Rust Proofing of Iron and Steel Articles.
IPC: C23C8/80
Filed: 1918-07-30
Abstract: 129,831. Thompson, J. A., and Ferrotherm, Ltd. July 30, 1918. Gases, supplying.-Hydrogen is passed by a pipe k into the upper part of a gas-heated furnace a in which iron and steel articles are heated for the formation thereon of a rust-proof surface.
Patent GB-163899-A (GB)
Title: Improvements in hair waving and curling appliances
IPC: A45D4/16
Filed: 1920-05-05
Abstract: 163,899. Frush, S. May 5, 1920. Hair-curling applicances. - A waver with the hair curled thereon and heat.supplying means. are adapted to be housed in a casing, the heatsupplying means being preferably slidably mounted within the casing while the waver is secured to the lid. A rectangular or cylindrical casing 1 is provided with a sliding fitting 2 carrying two tubes 3 filled with fire-clay or other heat-retaining substance and supported by grooves in the turned-over ends of the side walls of the casing, so that they may be projected from the casing and heated. The lid 6 is adapted to engage the open end of the casing with a, spring grip, and is provided with a U-shaped wire waver 7. The sides of the casing and lid are cut away, as shown, at 8, 9, so that the device may be, closed after the hair has been wound on the waver. Heat from the tubes 3 is thus applied to the hair. The appliance may be secured to the head by means of a hair-pin thrust through the ring 10.
Patent GB-1185254-A (GB)
Title: Polypivalolactone Composition
Inventor: BINSBERGEN FREDERIK LAMBERTUS
IPC: C08K5/10
Filed: 1968-03-14
Abstract: 1,185,254. Polypivalolactone compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 14 March, 1968, No. 12420/68. Heading C3R. A homogeneous mixture comprises 100 parts by weight of polypivalolactone and 2-200 parts by weight of an organic substance which consists of one or more organic compounds each having a solubility parameter of 7À5-10À5 and a B.P. of at least 240‹ C. The polypivalolactone may contain units derived from different α,α- disubstituted - # - propiolactones, e.g. α,α - diethyl- and α,α - diphenyl - # - propiolactones. Specified organic compounds are esters of phosphoric acids, esters of mono- or poly-carboxylic acids with mono- or polyhydric alcohols or phenols and copolymerization products of ethene and propene with unsaturated esters of carboxylic acids. The example uses diisodecyl phthalate. The mixture may also include inorganic fillers (e.g. CaCO 3 , asbestos or glass fibre), pigments, crystallization control additives (e.g. sodium α-naphthalene sulphonate), light stabilizers or antioxidants. Uses.-Films, sheets, rods, threads, tapes, tubes, plates or shaped articles (e.g. bottles).
Patent GB-850528-A (GB)
Title: Improvements in or relating to electromagnetic wave guides
IPC: H01P1/24
Filed: 1957-04-16
Abstract: 850,528. Variable impedances for waveguides. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 16, 1957 [April 19, 1956], No. 12424/57. Class 40(8). A variable impedance device comprises a grid of parallel wires D mounted in a waveguide one quarter wavelength in front of a reflecting piston Z. The grid extends across the end of a cylinder C which also accommodates the piston. Incident energy whose direction of polarization makes an angle of a degree with the wires suffers a rotation in the direction of polarization of (180-2a) degrees on reflection from the device. Thus, when a = 45 degrees the directions of polarization of the incident and reflected waves are at right angles. The directional coupler A between the guides G1  and G2 in Fig. 2 provides zero coupling for the incident wave in G1 but couples the whole of the reflected wave polarized at right angles to the incident wave into the guide G2. The phase of the reflected wave may be varied by longitudinal movement of the cylinder and piston. In the construction of Fig. 3, a strip RE of absorbtive material is arranged in a plane at right angles to the direction of polarization of the incident wave. Rotation of the cylinder C may be used to vary the amplitude of the component of the reflected wave which is absorbed by the strip RE. The phase of the unabsorbed component may be varied by longitudinal movement of the cylinder and piston.
Patent GB-1450121-A (GB)
Title: Dental units
IPC: A61C1/00
Filed: 1973-07-18
Abstract: 1450121 Dental apparatus C M W LABORATORIES Ltd 8 April 1974 [2 May 1973 18 July 1973] 20727/73 and 12430/74 Addition to 1391435 Heading A5R The dental unit described and claimed in Specification 1391435 is modified so that the conduit (4) of the Figure shown in that application, which receives air exhaust from dental instruments, is omitted.
Patent GB-1334332-A (GB)
Title: Gum bases
IPC: A23J1/12
Filed: 1972-03-16
Abstract: 1334332 Chewing gum base EZAKI GLICO KK 16 March 1972 [22 Get 1971 (2) 12 Nov 1971] 12454/72 Heading A2B A base gum for chewing gums comprises glutens which have been denatured to an extent of 10-60%. This gluten may be mixed with up to 50% of a known gum base selected from natural and chicle rubbers, polyvinyl acetate, undenatured gluten, undenatured soy protein, and milk casein. Glycerine and water may be present. The base may have added thereto sugar, spices, flavourings, and nutrients, and the mixture homogenised.
Patent GB-125134-A (GB)
IPC: H01H3/14
Abstract: 125,134. Brodsky, E. June 6, 1916. Road signals.-A switch for use in detonating land mines or for signalling and adapted to be placed underground so that the weight of a person or vehicle passing over it will close the circuit consists of a film of mercury placed between two flat disks 4, 8, a bore 5 in the upper disk communicating with the mercury space. The upper disk is attached to the cover 3 of the case; when the cover 3 is depressed the mercury is forced up the bore to complete the circuit. To widen the area over which the switch is to be sensitive the cover may be replaced by a frame-work, formed of interconnected plates 19, 20, Fig. 4, cross-beams 22 and a metal cover 24, the disk 4 being carried by the plate 20. Two or more of these switches may be placed across or along a road or railway so that the width or length of a column mav be estimated; or the mine to which the two switches are connected will be fired only on a body of given length being over the switches. One of these switches may be used for code signalling by depressing the cover with the foot of the operator over varying lengths of time. The number of men, railway carriages, &c. passing over a switch may be counted by the repeated closure of a suitable signalling-circuit.
Patent GB-499089-A (GB)
Title: Improved means for checking the dimensions of structural parts such as castings, forgings and stampings
IPC: G01B3/00
Filed: 1938-04-27
Abstract: 499,089. Gauging-apparatus. JUNKERS FLUGZEUG - UND - MOTORENWERKE AKT.-GES. April 27, 1938, No. 12577. Convention date, April 29, 1937. [Class 106 (ii)] Unfinished parts such as castings, forgings, stampings, &c. which are to be machined are tested by being placed in a gauge formed from transparent material such as unbreakable glass or the substance known under the Registered Trade Mark " Cellon," upon which are marked certain contours and locations of holes &c. The casting A has a bore of two different diameters, rounded corners 3 to be drilled for fastening bolts, and a projection 2 which has to be drilled. The casting is placed on a gauge part 13 having a transparent base 10 with reinforcing ribs 11, lug 12 and side wall 13 and four spacing studs 14 ... 17. The base plate 10 has a circular plate 18 of the same diameter of the smaller bore of the casting A and locating blocks 19 so that the casting is secured when placed on the part B. Blocks 28 or small projections protect the plate 10 from the rough face of the casting. Contour lines of the finished work piece or central working lines are marked on the plate 10 and on the top plate 20.