baber/WOPTO huggingface dataset:
Patent GB-863939-A (GB)
Title: Improvements in check weighing machines
IPC: B07C5/20
Filed: 1959-12-14
Abstract: 863,939. Weighing apparatus. BARTELT, H. L. Dec. 14, 1959 [March 30, 1959], No. 42472/59. Class 143 [Also in Group XXX] A check weigher, of the kind in which articles to be check weighed are carried by an endless belt having a horizontal run which traverses a horizontal weighing platform, has the endless belt driven by a hollow drum whose outer surface contacts the inner surface of the belt with a plurality of openings connecting the interior of the drum with its outer surface and a member contacting the inner surface of the drum and overlying at least a portion of each opening in the arc of the drum contacting the belt, which member is connected to a vacuum source whereby the belt is held against the drum. The belt 21, made of nylon or the like, traverses the weighing platform 19, guide shoes 22 and 23, an idler roller 24 mounted on a pivoted arm 26 to allow the belt to slacken for accurate weighing, and the driving drum 25. The latter (see Fig. 4) is formed with a plurality of transverse grooves 44 spaced apart around the drum's outer surface. A hole 45 connects each groove 44 to the drum interior where a suction head 36 covers those holes 45 whose slots 44 are covered by the belt. The suction head comprises a tube 41, connected by a flexible pipe 42 to a vacuum pump, on which tube the drum contacting shoe is rotatably mounted. The shoe 38 has a nylon surface bearing on the drum interior which it contacts over an arc co-extensive with the arc of contact of the belt with the outer surface of the drum. An aperture 40 in the shoe connects with the bore of the tube 41 which tube is supported from the fixed frame of the apparatus by arms 50 rotatably mounted on a fixed rod 51. Sorting by weighing. Packages on the belt 21 are weighed on the platform 19 and passed to a conveyer 16 on which they are automatically sorted into under, over and correct weight categories by means actuated by weight signals transmitted from the weighing mechanism 12.
Patent GB-935092-A (GB)
Title: Nuclear reactors and fuel rod sleeves therefor
IPC: G21C15/20
Filed: 1959-12-15
Abstract: 935,092. Cooling nuclear reactors. A. HUET. Dec. 15, 1959 [Dec. 15, 1958], No. 42674/59. Class 39 (4). A sleeve for a nuclear.fuel rod a comprises an elongated double-walled annular structure b through which coolant flows in parallel paths A, B; the sleeve is open at e to provide a coolant inlet and has apertures f in the inner wall at the opposite end. Further apertures g may be provided. The walls of the sleeve may be convergent or divergent as described in Specification 930,638, or may have transverse corrugations as described in Specification 935,091. The moderator c may be heavy water and the coolant carbon dioxide.
Patent GB-969289-A (GB)
Title: Refrigerant compressors
IPC: F25B31/02
Filed: 1962-11-13
Abstract: 969,289. Cooling dynamo-electric machines. YORK SHIPLEY Ltd. Nov. 13, 1962 [Nov. 17, 1961], No. 42964/62. Heading H2A. [Also in Division F4] A portion 11 of the housing of a sealed motor-compressor unit is formed with internal helical ribs 16 which space the motor (not shown) from the housing and define helical channels 15 through which gaseous refrigerant passes to cool the motor before entering the compressor. The pitch of the helical ribs is such that when the unit is positioned with its longitudinal axis horizontal a majority of the channels 15 have portions disposed in the lower region of the housing. Consequently if liquid refrigerant accumulates in the housing most of the channels are blocked and the pressure of the incoming gas builds up sufficiently to force the liquid into the compressor. Stops 17 are provided at the ends of the ribs 16 to limit the insertion of the motor in the housing.
Patent GB-1048359-A (GB)
Title: Variable pitch propellers
IPC: B64C11/40
Filed: 1965-10-11
Abstract: 1,048,359. Variable pitch propellers. GENERAL MOTORS CORPORATION. Oct. 11, 1965 [Oct. 16, 1964], No. 43121/65. Heading B7V. In order to effect automatic replenishment of the lubricant, a variable pitch propeller has a lubricant reservoir assembly 20, Fig. 2 (not shown) coaxial with and rotatable with the propeller hub 16 and non-rotary oil delivery tubes 54 projecting outwardly from the hollow shaft extension 28 into the reservoir. The outer ends or scoops 56, Fig. 3 (not shown) of the delivery tubes 54 are so constructed that when the reservoir rotates the supply pressure of oil in the delivery tubes is opposed by the pressure of the oil in the reservoir 20 under centrifugal forces. If the oil level in the reservoir falls below normal oil flows from stationary oil supply tube 34 which extends axially through the hub 16, through tubes 54 and scoops 56 to restore the oil level in the reservoir.
Patent GB-1278078-A (GB)
Title: Polyamide films
IPC: B32B27/16
Filed: 1969-08-29
Abstract: 1278078 Improved polyamide films UNITIKA Ltd 29 Aug 1969 [31 Aug 1968] 43218/69 Heading B5B A drawing process for polyamide film comprises drawing a polyamide film to from 1 to 15% of its undrawn length while the film is adsorbing 2 to 10% by weight (based on the initial weight of polyamide film) of water and subsequently biaxially stretching in a one step process. The biaxially drawn film may thereafter be heat-set preferably at from 120‹ to 5‹ C. below the melting point of the film. The water adsorption may be effected by immersing the film in a waterbath, preferably in a continuous process. The waterbath may contain additives such as dyestuffs, surfactants and/or plasticizers. The subsequent simultaneous stretching may be at 70‹ to 180‹ C. at a draw ratio of 2 : 1 to 4 : 1 both longitudinally and transversely and the ratio of the longitudinal and transverse draw speeds may range from 2:1 to 0À5:1. The polyamide may be a linear polyamide as for example poly #-caproamide, polyhexamethylene adipamide, or copolymers or mixtures including either or both polyamides. Polyamide film produced according to the process has low tendency of the film edges to curl or droop (maximum laxation value less than 20 mm.), and give good film thickness uniformity (deviation coefficient less than 2%).
Patent GB-1113692-A (GB)
Title: End-wrapping machine
Inventor: JALLANDS ROY LESLIE
IPC: B65B11/12
Filed: 1964-08-12
Abstract: 1,113,692. Wrapping-machines; conveyers. TRANSPARENT PAPER Ltd., and WALL PAPER MANUFACTURERS Ltd. 12 Oct., 1965 [12 Aug., 1964], No. 43282/65. Divided out of 1,113,691. Headings B8A and B8C. When the protruding ends of the wrapping are closed around a partially wrapped article, such as a roll of wallpaper, pockets are left at each end to facilitate opening of the package. This is achieved by placing the partially wrapped articles into a cradle 10 attached at 18 to an endless chain 20 and having upstanding tongues 26 positioned at opposite ends so that the lower part of the wrapper protruding beyond each end of the article is folded up against the end, and then raising the cradle with the chain to bring the top parts of the protruding wrapper into contact with fixed tongues 28 to fold them down at each end. In the embodiment shown, the remaining protruding tabs are folded in by means of inclined slots 36, and on further raising the cradle each end of the wrapper is heat sealed by means of spring-loaded heating members (38), Fig. 2 (not shown). The cradle 10, Fig. 1, is mounted on a bar 12 sliding horizontally in a bush 14, which in turn slides vertically on bars 16, so that the cradle remains upright whilst following the endless chain 20. During the downward movement of the cradle after sealing of the package, the package is lifted from the cradle by an inclined stationary shoot 40, the tongues 26 sliding out from the pockets at each end. The endless chain 20 may operate intermittently or continuously, and several cradles may be provided. The initial partial wrapping of the article may be carried out by means of the apparatus described in co-pending Specification 1,113,691.
Patent GB-1168687-A (GB)
Title: Dielectric Optical Waveguide.
Inventor: ANDERSON DEAN BROWN
IPC: G02B6/122
Filed: 1967-09-22
Abstract: 1,168,687. Optical waveguides. NORTH AMERICAN AVIATION Inc. Sept. 22, 1967 [Dec.7, 1966], No.43299/67. Heading G2J. An optical waveguide device comprises a waveguide 43, Fig.6 of dielectric material having a width no greater than one half wavelength of the light to be guided and a thickness no greater than its width supported contiguously with a layer 42 of material having an index of refraction less than that of dielectric 43. As shown a substrate 41 supports the layers 42, 43, and since metals may act as dielectrics at ultraviolet wavelengths the layer 42 may be of metal. An additional metal layer 44 may be on top of dielectric 43 and overhang it as shown or the upper layer may completely surround the dielectric waveguide. Alternatively the dielectric waveguide may be supported on a ridge of the substrate or be supported solely at its ends so that the layer supported continguously with the dielectric is of air. The waveguide may be supported on a substrate which also supports, or has formed therein, a light source and photosensitive device. Materials specified for the dielectric waveguide are Al 2 O 3 , CaF 2 , Ce 2 O 3 , LaF 3 , La 2 O 3 , MgF 2 , MgO, SiO, SiO 2 , Si 3 N 4 , YF 3  and Y 2 O 3 .
Patent GB-1397705-A (GB)
Title: Liquid sealing traps
IPC: E03C1/295
Filed: 1973-09-15
Abstract: 1397705 Traps BARTOL PLASTICS Ltd 15 Sept 1973 43405/73 Heading E1C [Also in Division F2] A passage 2 between the inlet and outlet sides of a trap by-passes the water seal and contains a one-way valve biassed to the closed position and arranged to be opened by any partial vacuum which should develop on the outlet side to thereby break the vacuum. The valve comprises an elastomeric disc 10 having a skirt 9 retained in the passage by a flanged nipple 8A. Apertures 11 in the disc normally engage the flange 7 on the nipple. A slotted elastomeric cover 20 may be located at the inlet end of the nipple, the slots 21 opening (as shown) under the action of the partial vacuum.
Patent GB-1164466-A (GB)
Title: Coated Abrasive Products
IPC: B24D11/02
Filed: 1966-09-28
Abstract: 1,164,466. Abrasive articles. ARMOUR & CO. 28 Sept., 1966 [19 Oct., 1965], No. 43417/66. Heading C4V. Coated abrasive product comprises the layers (a) a backing which is a spun bonded web of linear polyethylene fibres which backing has been impregnated with either polyvinyl chloride, a copolymer of vinyl chloride and vinylidene chloride, or a mixture of (1) an epoxy resin formed by the action of a dihydric phenol with epichlorhydrin, (2) a polyamide and (3) a long chain polyester having a chain length of at least 14 members, (b) a layer of abrasive grains bonded to the impregnated backing by means of a flexible metal adhesive and (c) a top-size coating over the grains composed of an epoxy novolac resin having at least 3 reactive epoxy groups. The preferred dihydric phenol is bisphenol A and the epoxy resins which are particularly suitable have an epoxide equivalent of 170 to 200, a viscosity of 25 C. of 3000 to 20,000 centipoises, an average molecular weight of twice the epoxide equivalent and are liquid at room temperature. The polyamide component is preferably a condensation polymer, dimerized and trimerized vegetable oils, unsaturated fatty acids, and an aryl or alkyl polyamine. They have preferably molecular weights of from 3000 to 10,000 and melting points ranging up to approximately 190 C. Lower molecular weight polyamides of about 6000 are preferred. In preparing the saturant the epoxy resin, polyamide and polyester are mixed together and thinned with a suitable solvent, preferably volatile, such as methylene chloride. The vinyl chloride polymers and copolymers are preferably colloidal dispersions in water having 48 to 58% total solids and preplasticized or internally plasticized latices are preferred. Suitable plasticizers are dioctyl phthalate, dioctyl adipate and tricresyl phosphate. The impregnation may be accomplished by "dip-squeeze". The make coat for embedding the abrasive grains and uniting the grain to the impregnated sheet may consist of a urethane elastomer.
Patent GB-1028118-A (GB)
Title: Improvements in or relating to a strain relief bushing
IPC: H02G3/08
Filed: 1964-10-23
Abstract: 1028118 Carrying conductors through partitions HEYMAN MANUFACTURING CO 23 Oct 1964 [20 Nov 1963] 43421/64 Headings F2H and H11B A strain-relief bushing of dielectric material for supporting an electric conductor in an aperture in a panel comprises a body portion 10 and a grip block 11 which are connected by a flexible strap or hinge 26. The body portion 10 is provided with a channel which is recessed to form a chamber 15, the lateral walls of which are grooved to form keyways 20, 21 to guide a conductor gripping tongue or extension 22 of the grip block 11 into the chamber. The body portion 10 and the grip block 11 each have a flange or extension 14, 14a which are provided with complementary abutting shoulders 10a, 11a. The body portion is also formed with fingers 30, 31 having shoulders 34, 37 and 33, 36 respectively which in the bushing's mounted position co-operate with the panel to function as locking means Fig. 8, (not shown). With the body portion and grip block in abutment a thin, flat retaining ring may be slipped over the bushing into contact with the flange elements 14, 14a.
Patent GB-1044716-A (GB)
Title: Elastomeric polyurethane
IPC: C08G18/42
Filed: 1964-10-26
Abstract: Polyurethane elastomers are prepared by (a) reacting one equivalent of a hydroxy terminated polyester, of average M.W. 1000-2000 and acid number less than 1 selected from the reaction products of (1) a dicarboxylic acid of formula COOH(CH2)nCOOH where n equals 1 to 11, inclusive, and a diprimary glycol of formula HO(CH2)nOH where n equals 2 to 10 inclusive; (2) an epsilon caprolactone of formula <FORM:1044716/C3/1> wherein at least 5 R's are hydrogen and the remainder of the R's are hydrogen, alkyl, cycloalkyl, alkoxy or single ring aromatic hydrocarbon radicals, none of the substituents contains more than 12C, and the total number of carbon atoms in the substituents on the lactone ring does not exceed 12, and a said diprimary glycol; and (3) an epsilon caprolactone as defined above and an aliphatic amino alcohol of formula HO(CH2)nNH2 where n equals 2 to 10, inclusive; with from 0.5 to 0.8 equivalent of o-tolidine diisocyanate at 90 DEG  to 130 DEG  C. for 1 to 3 hours to provide a first prepolymer; (b) reacting the first prepolymer with additional o-tolidine diisocyanate to a total of from 1.5 to about 2 equivalents at 90 DEG  to 130 DEG  C. for 1 to 3 hours to provide a second prepolymer; (c) reacting the second prepolymer with from 0.9 to 0.95 equivalent, based on the stoichiometric excess of the diisocyanate, of a diol of formula HOCH2-(CH2)nCH2OH where n is 1, 2 or 3 at 80-120 DEG  C. for 1 to 6 hours to provide an elastomeric polyurethane and cooling to the solid state.
Patent GB-1273494-A (GB)
Title: Process for the dyeing and printing of textile materials
Inventor: HILDEBRAND DIETRICH
IPC: D06P1/92
Filed: 1970-09-11
Abstract: 1,273,494. Dyeing and printing. FARBENFABRIKEN BAYER A.G. 11 Sept., 1970 [11 Sept., 1969], No. 43585/70. Heading D1B. Textile materials are dyed or printed with a chlorinated hydrocarbon/water dyestuff emulsion containing a water-soluble dyestuff in the aqueous phase and optionally a dyestuff dissolved in the chlorinated hydrocarbon phase, followed by treating with a chlorinated hydrocarbon solution containing interface-active compounds which convert the dye used in the aqueous phase into a form soluble or dispersible in the chlorinated hydrocarbon. Acid, basic and reactive dyes may be used on polyamides, polyesters, wool, silk natural and regenerated cellulose, polyacrylonitrile and blends of these fibres. 0.02-2% by weight of interface-active compound in weight of chlorinated hydrocarbon may be used. Non-ionic emulsifiers, water and water-soluble organic solvents may also be present.
Patent GB-1390928-A (GB)
Title: Manufacture of cutlery and flatware
IPC: B26B3/02
Filed: 1971-09-20
Abstract: 1390928 Making cutlery A K YATES and A BEATSON [trading as YATES BROS] 11 Sept 1972 [20 Sept 1971] 43643/71 Heading B3A A method of manufacturing a cutlery item comprises stamping a pair of handle shell halves, joining them together to form a hollow handle shell 16, filling the shell with synthetic plastics material 18, forming an implement part 24 with an integral tang 22, drilling a hole 20 longitudinally of the plastics filling, and securing the handle on the tang. The hole may be of smaller diameter than the tang so that the handle is forced on to the tang facilitated by a lubricant, e.g. adhesive in liquid form. Alternatively, the hole may be larger diameter and the tang is therefore coated with adhesive, e.g. epoxy resin, prior to assembly. A swelling agent may be added to the plastics filling to guard against contraction of the filling within the handle. In a preferred embodiment, a knife comprises a handle of nickel silver, a blade of stainless steel and a filling of nylon for which the use of lubricant is unnecessary. A pattern or design may be spplied to the handle halves and they can be joined together by soldering. The finished handle is subsequently plated, e.g. with silver. Spoons and forks may be manufactured as well as knives.
Patent GB-1047607-A (GB)
Title: Production of primary aromatic amines
IPC: C07C209/36
Filed: 1965-10-14
Abstract: In a process for producing a primary aromatic amine by catalytic hydrogenation of a nitro compound, the reaction mixture is treated (when the nitro compound is completely reduced) at 50-150 DEG  C. for 1/4 -2 hours, with hydrazine or with a hydrocarbon-substituted hydrazine containing a free NH2 group and the product-which is stated to be resistant to discoloration-is isolated.  Exemplified amines thus prepared are aniline, m-chloroaniline, o -toluidine, o -anisidine, 2,4-xylidine, m-phenyl-enediamine and 3,4-dichloroaniline.
Patent GB-977381-A (GB)
Title: Improvements in and relating to constant-flow control valves
Inventor: HORSWILL RAYMOND
IPC: G05D7/01
Filed: 1959-12-29
Abstract: 977,381. Valves. COAL INDUSTRY (PATENTS) Ltd. March 29, 1961 [Dec. 29, 1959], No. 44098/59. Heading F2V. A flow control valve comprises a housing 1 having an inlet 2 and outlet 3 interconnected by a bore 4 containing an axially slidable plunger 10 constituting the valve obturating member and carrying at one end an element 11 provided with a metering aperture 12, one end of which opens in the housing and the other end of which communicates with both the inlet of the housing and an enclosed space 14, the plunger being urged towards the enclosed space and an open valve position by a spring 13 and towards a closed valve position when the pressure of the fluid in the enclosed space builds up above a certain value. The element 11 is in the form of a screw plug, the flange 12 of which limits the travel of the plunger 10. The space 14 communicates with the interior of the plunger via a restricted passage 21, passage 20, the latter being connected with radial ports 18 which communicate with the inlet 2 via an annular groove 19. In normal operation, pressurized fluid passes through the inlet 2, groove 19, ports 18, and metering aperture 12. Upon a surge in pressure above a certain value in the inlet 2, the piston is moved against the action of the spring 13 to thereby reduce flow through the valve. The element 11 is interchangeable with others having different bore sizes.
Patent GB-883605-A (GB)
Title: Improvements in or relating to the production of bulky yarn
IPC: D06M11/40
Filed: 1959-12-29
Abstract: 883,605. Spinning yarns. HEBERLEIN & CO. A. G. Dec. 29, 1959 [Jan. 2, 1959], No. 44112/59. Drawings to Specification. Class 120(3) A bulky yarn is produced by forming a composite yarn of cotton and crimped fibres of a fully synthetic, organic material, treating such composite yarn with aqueous caustic alkali of a mercerising concentration (22‹-38‹BÚ) until shrinkage of the cotton component occurs, the caustic alkali then being removed from the yarn. The cotton component may be staple, roving or yarn: the synthetic component may be of polyamides, polyesters, e.g. polyethylene glycol terephthalate, or vinyl polymers or copolymers, e.g. polyacrylonitrile, in the form of stapled fibre, continuous filaments or yarn. The components may be mixed and spun or one or more of each may be intertwisted. Continuous filaments may be crimped and stapled, or stapled and crimped. Staple, continuous filaments, and/or yarns thereof may be crimped by twisting, heat-setting and backtwisting which may be followed by heating in stretched condition to modify the crimp, by compression in a stuffing box or between intermeshing toothed rollers, and/or by drawing over an edge.
Patent GB-443836-A (GB)
IPC: G06C23/06
Abstract: 443,836. Ratchet clutches. NATIONAL CASH REGISTER CO., Dayton, Ohio, U.S.A.- (Assignees of Scott, H. B. ; Rural Route No. 7, Dayton, Ohio, U.S.A.) July 6, 1934, No. 19845. Convention date, July 14, 1933. [Class 80 (ii)] In a cash register, calculating or other power-driven machine, a gear 36 is driven from a drum 33, driven through worm gearing 30, 31 by an electric motor, by means of a roller 46 arranged between the drum and a ring 40 which is mounted with clearance on an eccentric 39 secured to the gear 36 and which contacts with the drum. The roller 46 is arranged loosely between studs 43 and 44 carried by a ring 45 journalled on a disc 47 secured to and interposed between the members 36, 39. A cam member 48, journalled on the gear 36 and urged anti-clockwise relative to the latter by a spring 54, co-operates with switching means for the motor. A pin 56 on the member 45 engages arcuate slots 57 and 58 in the members 48 and 47 respectively. Normally, stops on an arm 53 engage shoulders 50, 51, and 52 on the members 48, 47, and 45 respectively, the motor being switched off and the clutch parts being in the disengaged position shown in Figs. 3 and 4. When the parts are released by movement of the arm 53, the spring 54 turns the cam 48 to cause the motor to be switched on and, through the pin 56 and slot 57, to turn the ring 45 so as, through the stud 44, to move the roller 46 into contact with the drum 33 and ring 40. The movement of the drum 33 now carries the roller and ring into the position shown in Fig. 6, and drive is transmitted to the member 39. Specification 260,581, [Class 80 (ii)], is referred to.