baber/WOPTO huggingface dataset:
Patent GB-155766-A (GB)
Title: Improvements in, and relating to, machines for the excavation of trenches and the like
IPC: E02F3/10
Filed: 1920-12-22
Abstract: 155,766. Orenstein & Koppel Akt. Ges., (formerly Orenstein & Koppel-A. Koppel Akt.-Ges.). Nov. 14, 1917, [Convention date]. Digging and channelling apparatus; endlesschain machines. - A machine for excavating trenches with sloping walls comprises a chain of buckets carried by a bucket arm, and rotating conical cutting drums arranged at both sides of the bucket arm. In the form shown, the machine frame b is supported on endless tracks a and a bucket arm c, supporting a chain f carrying buckets m, is pivoted thereto. At the rear of the bucket arm is a shaft h carrying conical drums d provided with cutters i, k, l, the cutters k extending approximately to .the path of the buckets m; the drums carry detachable projections e which engage the bucket chain. Vertically adjustable, spring-mounted rolls p at the rear of the frame b and rolls r carried by a shaft s adjustable along the bucket arm support auxiliary supports and press the edges of the trench and may carry cutting disks t which ensure subsidence of the projecting earth n left by the drums; the rolls p, r may be transversely adjustable. The buckets m deliver at will to either or both of two laterallyextending conveyers which deposit the earth on the sides of the trench. To vary the slope of the trench walls, auxiliary cones may be attached to the drums d. For transport, the bucket chain mav be removed and the bucket arm detached from the frame b and provided with shafts for haulage, the drums d, after removal of the cutters &c., then acting as wheels, or other wheels being provided.
Patent GB-1079798-A (GB)
Title: Hair clipper
Inventor: ANDIS MATHEW
IPC: B26B19/06
Filed: 1965-08-23
Abstract: 1,079,798. Hair clippers. ANDIS CLIPPER CO. Aug. 23, 1965, No. 36163/65. Heading B4B. In a hair clipper having a vibratory motor for reciprocating a blade 22 relatively to a comb blade 30, the blades when detached from the clipper frame 10 are in unitary assembly by means of separate clamping means which are disengaged automatically when the assembly is mounted on the clipper frame and which prevent relative movement between the blades when they are detached from the clipper frame. The blades have mounted thereon blocks 20, 36 of synthetic resin, the block 20 having posts 18 engageable by cups 16 of spring arms 14 of the motor armature 12 and having a recess 64 engageable by fingers 60, 62 at the front ends of detent levers 47, 48 pivoted at 50 on the block 36 and biased by a spring 54 having its ends coiled on the pivot 50. The clipper frame has a shoe 32 provided with a recess 34 engageable by a rib 38 at the rear end of the block 36 the front end of which is undercut at 40 to receive the hooks 42 of springs 44, the hooks being guided into undercut recesses by means of bevelled surfaces 46 on the block 36. The shoe 32 has a thrust surface 68 engageable by the rear ends 56, 58 of the levers 47, 48. When the blade assembly is engaged in the clipper frame, the surface 68 effects counterclockwise oscillation of the levers 47, 48 to lift the fingers 60, 62 from the recess 64, thus completely freeing the blade 22 from the detent levers. At the same time, the cups 16 engage the posts 18. Conversely, when the blade assembly is dis-. engaged from the clipper frame, the posts 18 are released from the cups 16 and the levers 47, 48 are released to allow them to be oscillated by their biasing spring 54 to engage the fingers 60, 62 in the recess 64 thereby holding the blade 22 to the blade 30.
Patent GB-408071-A (GB)
Title: Improvements in the construction of floating stations for aircraft
IPC: B63B35/50
Filed: 1932-12-22
Abstract: 408,071. Marine aircraft stations. ARMSTRONG, E. R., Hollyoak, Delaware, U.S.A. Dec. 22, 1932, No. 36368. [Classes 113 (i) and 113 (ii).] A floating station of the kind described in Specification 206,832, [Class 113 (ii)], serving as a landing platform and supply station for aircraft comprises a landing deck 10<a> supported by buoyancy columns 12 which are further connected by telescopic members 19 to ballast chambers 21. The columns 12 have a smaller cross-section than their terminal buoyancy tanks and are so disposed that at the trough of a wave the buoyancy tank alone is exposed to the denser water at the trough. Arrangements are described in the Specification for varying the buoyancy by supplying compressed air and withdrawing water through suitable pipe arrangements. The station is moored to a buoy 4, Fig. 9, which is itself anchored to the sea bottom. The buoy 4 is spaced from the station by arms 52. The cable 3 connecting the mooring- buoy with the station is provided with an enlarged joint 57 which controls a switch 63 to de-energize the motor controlling the wrench when the cable 3 is fully drawn in because of wind pressure causes the windlass to slip beneath its brake 68 until the limit switch closes again. To bring the station into the wind air fins 81 are operated by worm-gearing 84, 85 from the rudder motor 86. This motor is controlled by suitable electrical gear from the pilot vane 87.
Patent GB-1174456-A (GB)
Title: Method and Apparatus for Producing an Interlaced Yarn.
IPC: D02J1/08
Filed: 1967-08-08
Abstract: 1,174,456. Interlaced yarns. DEUTSCHE RHODIACETA A.G. 8 Aug., 1967 [13 Aug., 1966], No. 36403/67. Heading D1F. A method of producing an interlaced multifilament yarn comprises introducing an energytransmitting fluid as a jet tangentially into a yarn duct, the fluid jet, preferably a gas or air current, being regulated by a resonance chamber and a recess being provided in the yarn duct. The yarn is supplied without overfeed and wound under tension. Apparatus for carrying out the method comprises a feed-in nozzle 2 for the fluid jet in line with a resonance chamber 3, a yarn duct 1 with a recess 5 being located tangentially between the nozzle 2 and the resonance chamber 3. The length of the resonance chamber is adjustable by means of a piston 4.
Patent GB-627612-A (GB)
Title: Improvements in or relating to the production of emulsions of polyvinyl esters
IPC: C08F18/04
Filed: 1946-12-10
Abstract: Emulsions of highly polymeric esters are produced by polymerization of an aqueous emulsion of one or more vinyl esters of carboxylic acids or mixtures thereof with an ester or esters of acrylic or methacrylic acid in the presence of a water-insoluble organic compound containing a hydrophilic group, a water-ionizable surface tension depressant and a single hydrophilic organic colloid. Preferably the monomeric material is mixed with the water-insoluble compound prior to emulsifying in an aqueous medium containing the surface tension depressant and the colloid.  Suitable hydrophilic groups in the water-insoluble compounds are hydroxyl, carboxyl and ester groups, specified compounds being octyl alcohol, octadecanediol and wool wax alcohols.  The preferred hydrophilic organic colloids are water-soluble hydrolysed polyvinyl esters and acetals.  Specified surface tension depressants are the sodium salts of dioctyl sulphosuccinic acid, sulphated lauryl alcohol and sulphated amyl oleate.  Alternatively the functions of the surface tension depressant and the single hydrophilic colloid may be fulfilled by a single substance, e.g. a partially sulphated wholly or partially hydrolysed polyvinyl acetate.  A partially sulphated long-chain aliphatic alcohol may be used instead of the water-insoluble hydrophilic organic compound and the surface tension depressant. Plasticizers, e.g. triethylene glycol dihexoate, may be emulsified either with the monomeric material or with the polymeric esters. Objectionable odours may be removed from the emulsion produced by blowing with steam or hot air.  The emulsions have a high solid content and are advantageous for production of films, coatings and adhesives.  Specifications 466,173, 469,319, 475,162, 511,036, 513,076, 568,884, 568,886, 574,449, 574,863 and 607,704 are referred to.
Patent GB-1152445-A (GB)
Title: Improvements in or relating to Film Developing and Drying Apparatus
IPC: G03D13/04
Filed: 1966-08-16
Abstract: 1,152,445. Photographic developing and drying apparatus. CHIRANA ZAVODY ZDRAVOTNICKE TECHNIKY, OBOROVY PODNIK. Aug. 16, 1966 [Sept. 3, 1965], No. 36533/66. Heading G2A. An apparatus for developing and drying film - strips comprises a motor driven drum 3 provided with a helical guideway on its curved outer surface, into which guideway an exposed film is inserted by a charging device 12 in darkness; a developing tank 1 into which the loaded drum is lowered, the tank then being closed by a light tight cover 2 so that the rest of the sequence of operations can take place in daylight; a filling funnel 16 and an outlet tube 17 which are used to supply developer and fixer in turn to the tank; and an infrared heater 28 which is used to dry the fixed film, the drum being returned to the position shown after fixing. The drum is rotated to allow of insertion of film, and is rotated at a higher speed while drying takes place. Vanes inside the drum act as baffles to deflect air to the undersurface of a fixed film while drying takes place. The drum is mounted on arms 5 of a frame carried by the tank 1.
Patent GB-1479956-A (GB)
Title: Lead phosphate-vanadate glass
IPC: C03C3/16
Filed: 1974-08-20
Abstract: 1479956 Lead phosphate-vanadate glass STANDARD TELEPHONES & CABLES Ltd 12 Aug 1975 [20 Aug 1974] 36562/74 Heading ClM A glass comprises, by weight, 33-70% of lead oxide (PbO), and 28-42% of a mixture of phosphorus pentoxide (P 2 O 5 ) and vanadium pentoxide (V 2 O 5 ), the weight ratio V 2 O 5  : P 2 O 5  being 1À5-4 : 1, and the balance, if any, being lead fluoride (PbF 2 ). The glass, which has a low softening point, e.g. 300-400‹ C., may be used to encapsulate semi-conductor devices.
Patent GB-1452857-A (GB)
Title: Hydroxy-terminated polymers of butadiene
IPC: C08F36/04
Filed: 1974-08-21
Abstract: 1452857 Hydroxy-terminated butadiene polymers DART INDUSTRIES Inc 21 Aug 1974 [27 Aug 1973] 36773/74 Heading C3P Hydroxy - terminated butadiene polymer having -OCH 2 CH 2 OH end groups, from 1À7 to 2À4 hydroxyl groups per molecule and a number average molecular weight # n  of from 2,000 to 5,600 is prepared by a process wherein butadiene is polymerized at a temperature of from 50‹ to 170‹ C. in a solvent having high chain transfer activity in the presence, as polymerization initiator, of teriary-butyl betahydroxyethyl peroxide. Preferred solvents are alcohols and ketones containing from 1 to 5 carbon atoms, isopropanol and methyl ethyl ketone being specified; other exemplified solvents are xylene and dioxene. The hydroxyterminated butadiene polymer (which may have a molecular weight distribution ratio # w /# n  of from 1À7 to 3À0 and a content of 1,4-trans isomer high relative to the content of 1,4-cis isomer and of 1,2-vinyl isomer) may be coupled with a monomer or prepolymer containing a functional group reactive with hydroxyl group. Specified such reactive functional groups are carboxyl, isocyanato, amino and epoxy groups; preferred such monomers and prepolymers contain more than one reactive functional group, dicarboxylic acids and di-isocyanates being specified; exemplified such copolymers are modified polyurethanes, polyesters, polyepoxides and hybrids thereof.
Patent GB-1214697-A (GB)
Title: Heterogeneous metallic compositions suitable for use as a contact material for vacuum switches
IPC: H01H33/664
Filed: 1968-08-01
Abstract: 1,214,697. Electric contacts. SIEMENS A.G. 1 Aug., 1968 [5 Aug., 1967], No. 36861/68. Heading H1N. [Also in Division C7] Sintered composite material suitable for use as contact material in a vacuum switch comprises a porous sintered skeleton of W, Re or Mo or an alloy of these metals together, impregnated with Bi, Cd, Ga, In, Pb, Sn or T1 or an alloy of two of these metals or an alloy of at least one with at least one of Ag, Cu, Hg, Sb or Zn. Either the skeleton or the impregnant contains a wetting agent e.g. Ag, Co, Cu, Fe, Ni, Ti or Zr or an alloy of two or more of these in the skeleton or Al, Co, Fe, Ni, Te, Zr, alkali or alkali earth metal in the impregnant. Porosity of the sintered skeleton is 20-60%. The composite material may be screwed, clamped, soldered or welded on to a support.
Patent GB-1147122-A (GB)
Title: Improvements relating to the strengthening of glass articles
IPC: C03C21/00
Filed: 1967-08-11
Abstract: 1,147,122. Strengthening glassware. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Aug., 1967 [13 Aug., 1966], No. 36922/67. Heading C1M. Alkali metal aluminosilicate glass articles containing at least 10 mol per cent of Li 2 O are strengthened by immersion for 1 to 10 minutes in a sodium ion containing bath of a molten salt or salt mixture at a temperature from 20 to 40‹ C. below the strain point of the glass, and subsequently immersion in a potassium ion containing bath for 1 to 12 hours, at a temperature of from 60‹ to 200‹ C. below the strain point of the glass. In an example a glass having the composition SiO 2  66<SP> </SP>2/3 mol per cent, Al 2 O 3  16 2/3 mol per cent, Li 2 O 16 2/3 mol per cent, and a strain point of 655‹ C., is used to make an article which is immersed for 10 minutes in a bath at 630‹ C. and consisting of a molten mixture of 50 mol. per cent of Na 2 SO 4  and 50 mol per cent of ZnSO 4 , and subsequently in a bath of molten KNO 3  at a temperature of 525‹ C. for 2 hours. Reference has been directed by the Comptroller to Specifications 1,018,890, 1,071,351, 1,076,894.
Patent GB-340266-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/22
Filed: 1929-07-16
Abstract: 340,266. Vacuum cleaners. ELECTROLUX, Ltd., 153, Regent Street, London.-(Inventia Patent-Verwertungs-Ges.; 10, Herrenacker, Schaffhausen, Switzerland. July 16, 1929, No. 36979/30. Divided on 339,975, [Class 8 (i), Air and gases, Compressing &c.]. [Class 8 (i).] A fan and motor unit is located within the casing and supported in a resilient or an insulating manner by a member such as a ring 29 of insulating material rigidly secured to the casing. The fan-housing elements 34, 36 are supported independently by the ring &c The outer housing 36 is bolted by its flange 37 to the member 29, making the sides of the housing airtight.
Patent GB-1193466-A (GB)
Title: Guides for Die Sets
Inventor: COLEY SAMUEL ERNEST
IPC: F16C31/04
Filed: 1967-08-12
Abstract: 1,193,466. Sub-pressed mechanisms. ROTOLIN BEARINGS Ltd. 5 Aug., 1968 [12 Aug., 1967], No. 37128/67. Heading B3Q. A guide for a die-set comprises a bush 10 for the punch holder 13, a pin 17 for the base 18, a cage 20 containing a plurality of balls 22 acting between the pin and bush, and longitudinally extending grooves 23 in the outer surface of the cage which are entered by inwardly projecting means 16 on the bush, the means 16 and cage 20 being rotatable in the bush. As shown, Fig. 1, a pair of balls 16 rotatable in an annular groove 15, enter the grooves 23, which are inclined to the cage's axis at the same angle as the lines of balls, Fig. 3 (not shown). If the guide is used out of the vertical, a spring may be needed to project the cage. In another form, Fig. 4 (not shown), the annular groove (27) is intermediate the ends of the cage, which is retained in the bush by a ring (26). In a modification, Fig. 5, a rotatable ring 29 has inner lugs 31 engaging axial slots 34 in the cage 33, which has axial lines of balls.
Patent GB-1536817-A (GB)
Title: Engine mounted exhaust brake
IPC: F02D9/04
Filed: 1977-09-06
Abstract: 1536817 Exhaust brake operation CATERPILLAR TRACTOR CO 6 Sept 1977 [7 Feb 1977] 37145/77 Heading F1B [Also in Division F2] An exhaust brake valve 22 is closed by air pressure and so shaped and dimensioned with respect to the actuating cylinder/piston 34, 38 and the section of exhaust pipe 18 containing the exhaust brake that a predetermined exhaust gas pressure is not exceeded, the valve being forced open by exhaust pressure compressing the air in the cylinder when the predetermined pressure is exceeded.
Patent GB-338022-A (GB)
Title: Improved apparatus for the humidiflcation and cooling of cinematograph films
IPC: G03D15/00
Filed: 1929-12-04
Abstract: 338,022. Rouiller, A. Dec. 27, 1928, [Convention date]. Air, moistening.-Air for cooling kinematograph films 10 is drawn by a fan 13 from a rose 9 connected with a chamber 4 containing porous earth receptacles 3 filled with water from a tank 1. Air passing through holes 5 in the chamber 4 is moistened and cooled by passage over the wet walls of the receptacles 3, excess water being removed at 6.
Patent GB-370472-A (GB)
Title: Improvements in and relating to metallic vapour electric discharge apparatus
IPC: H01J13/10
Filed: 1930-12-09
Abstract: 370,472. Metallic-vapour apparatus. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Electricitõts. Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 9, 1930, No. 37174. Convention date, Dec. 9, 1929. [Class 39 (i).] In mercury-vapour rectifiers &c. a metallic container 1 for the cathode is carried by a lead-in insulator 7 mounted in the bottom of the vessel and by means of an insulator 10 is sealed to the vapour chamber 3 in such a manner that very little mercury can pass into the space 9 between the cathode vessel and the bottom of the container. The space 9 may be evacuated by a pipe 12 which leads to a well-cooled region 13 having a low vapour pressure. A tube 16 for collecting condensate is provided with a heater 18, the vaporized mercury being guided to a cooled surface 20 through a tube 19. The cathode vessel may be sealed to the vapour chamber by means of atmospheric pressure, the bottom plate 14 being formed as a diaphragm having a flexible rim 15
Patent GB-1099646-A (GB)
Title: Fluorine-containing aromatic esters
Inventor: LYNCH ERIC ROYLE
IPC: C07C69/96
Filed: 1965-08-31
Abstract: The invention comprises diesters of the formula A-Ar-A wherein Ar represents a divalent aromatic structure containing one or more aromatic nuclei, A represents an ester grouping having the formula R-O.CO-, R-CO.O- or R-O.CO.O- attached to a nuclear carbon atom of the aromatic structure Ar, R represents a monovalent aromatic radical containing one or more aromatic nuclei and where there is present at least one fluorine atom as a nuclear substituent in the aromatic structure Ar or in the radical R and a process for the preparation thereof wherein an appropriate di-acid halide or mono-acid halide is reacted respectively with an appropriate monohydric or dihydric phenol. Specific products described include di(pentafluorophenyl) tetrafluoro-, iso- and terephthalates, 1,3- and 1,4-bis(pentafluorobenzyloxy)-tetrafluorobenzene, 4,41 - bis(pentafluorobenzyloxy) octafluoro - biphenyl, di - (pentafluorophenyl) tetrafluoro-m-phenylene bis(carbonate), di-(pentafluorophenyl) octafluoro - 4,41 - biphenylene bis carbonate, 1,3-bis (2,3,5,6 - tetrafluorobenzyloxy) - 2,4,5,6 - tetrafluorobenzene and bis [4-(pentafluorophenoxycarbonyloxy)-tetrafluorophenyl] sulphone.
Patent GB-1498280-A (GB)
Title: Sliding clasp fastener stringer
IPC: A44B19/34
Filed: 1975-09-10
Abstract: 1498280 Sliding clasp fasteners YOSHIDA KOGYO KK 10 Sept 1975 [25 Sept 1974] 37222/75 Heading E2S [Also in Division D1] A sliding clasp fastener stringer 10 comprising a warp-knitted tape 11 having longitudinally-extending alternate wales 13 and interwale grooves 14 and a row of interlocking fastener elements 12 each having an interlocking head 15 and two legs 16, 16 and mounted on, and along, one longitudinal edge portion of the tape, and an anchoring wale 13b neighbouring an innermost wale of the tape is greater in height and width than the innermost wale and is adapted for fitting engagement with a recess 18 formed in one of the two legs of each element. Supporting interwale grooves 14a, 14b located on opposite sides of the enchoring wale 13b are essentially greater in width than the remaining interwale grooves and are adapted for the passage of sewing threads 19 therethrough, whereby the knit fabric of the tape, including that of the anchoring wale 13b, the innermost wale 13 and supporting interwale grooves 14a, 14b, is brought into pressure engagement intimately with said one leg of each element by the sewing threads into position on the tape. Each warp-knitted tape 11 of a concealed type fastener is formed of chain stitches A which form the wales 13, tricot stitches B in the lay of 1-2/1-0, Satin stitches C in the lay of 0-1/4-3, and warp threads D with the interwale grooves 14 formed warpwise between adjacent wales 13, a yarn of greater dernier or, a plurality of yarns held together, being employed for the second row of chain stitches A to render the second wale 13b higher and wider than the remaining wales 13. The supporting interwale grooves 14a, 14b are crushed under the influence of sewing pressure in order to increase the area of contact between the tape 11 and the element 12. A stringer (10). Fig. 3 not shown, is adapted for use with a non-concealed type fastener.
Patent GB-526944-A (GB)
Title: Improvements in or relating to lagging for pulleys
IPC: F16D69/02
Filed: 1939-03-22
Abstract: 526,944. Pulleys. PULTRA, Ltd., and SCHWABE, F. M. March 22, 1939, No. 37247/38. [Class 80 (i)] Lagging for covering pulleys comprises a moulded flexible body o: rubber, balata or other suitable material having a reinforcement of a plurality of layers d o woven textile fabric pre ferably arranged on the bias, consolidated by vulcanization, polymerization or other known process suitable for the impregnant and shaped or moulded with its under and upper faces arched initially concave and convex respectively, the convex arching being such as to provide an ultimate surface flat transversely or with a pronounced convex transverse arch or crown when fixed cn the pulley. Grooves c may be formed, either in the moulding or by cutting away the plies, to accommodate rivets. The fabric plies may be of long staple Egyptian cotton with 36 ends and 36 picks to the inch and weighing 8¥ ounces per square yard. The lagging may be moulded in straight or circular lengths. Tough rubber is used in such quantity that the lagging is about “ inch thick at the centre. The lagging may be secured to a flat or curved band for attachment to a pulley or be secured direct to the pulley itself. Specifications 470,261 and 530,236 are referred to.
Patent GB-1107261-A (GB)
Title: Improvements in or relating to orientated polypropylene
Inventor: JACK JAMES
IPC: B29C48/08
Filed: 1963-09-23
Abstract: Polypropylene containing 0.2% by weight of a nucleating agent consisting of p-tert-butyl benzoic acid or succinic acid, is formed into films.  Other nucleating agents specified are salicylic acid, maleic acid and aluminium benzoate.