baber/WOPTO huggingface dataset:
Patent GB-1313082-A (GB)
Title: Printing apparatus
IPC: H03M7/00
Filed: 1971-06-22
Abstract: 1313082 Printers NATIONAL CASH REGISTER CO 22 June 1971 [30 June 1970] 29166/71 Heading G4H Printing apparatus for printing data in the form of a transition code using a transition A-to-B or B-to-C or C-to-A to represent a first bit value and any of the reverse transitions to represent the second bit value, where A, B and C are respective indicia, feeds the data to a reversible modulo-3 counter, the two bit values respectively incrementing and decrementing the count by one, the count being decoded to control the printing. The disclosure is as Specification 1,313,081 (referred to).
Patent GB-918199-A (GB)
Title: Shipping accessory for tractor drawn scrapers
Inventor: KIMSEY WOODROW PAUL
IPC: E02F3/64
Filed: 1961-08-14
Abstract: 918,199. Earth-moving equipment. CATERPILLAR TRACTOR CO. Aug. 14, 1961, No. 29233/61. Class 68 (1). In a tractor-drawn bowl type scraper the cross-brace 20 of the draft arms pivotally coupled at 19 to the bowl 14 is rigidly connected by one or more struts 32 to the front apron 16 of the bowl when the side arms are removed when it is required to reduce the overall width of the scraper during transit from one site to another. The rigid coupling of the cross-brace to the apron still allows of the front end of the bowl being raised or lowered as required by a jack 28 connected between the draft assembly 21 associated with the cross-brace 20 and a cross beam at the front of the bowl.
Patent GB-865559-A (GB)
Title: Game balls and methods of making the same
IPC: A63B37/00
Filed: 1959-08-28
Abstract: 865,559. Golf-balls. SPALDING & BROS Ltd., A. G. Aug. 28, 1959 [Jan. 16, 1959], No. 29502/59. Class 132(2). A golf-ball core consists of a resilient fluidfilled shell made of two hemispheres 16, 17 the mating surfaces of which are bonded together and constitute a tongue and groove joint 20, 21 which may be of tapering, rectangular or undercut cross-section. The ball is completed as usual by rubber windings and outer cover. The central fluid is initially contained in a gelatine capsule which melts to release the fluid during curing of the assembled hemispheres 16, 17.
Patent GB-290909-A (GB)
Title: Electric power transmitter
IPC: H02K7/112
Filed: 1927-11-05
Abstract: 290,909. Fairweather, W., (Singer Manufacturing Co.). Nov, 5, 1927. Casings; motors, gearing for; brakes. -An electric motor to be secured under a machine table comprises a casing 1 with an internal tubular portion 3 which supports a stator 4 and through which passes a hollow shaft 13 carrying a rotor 8 surrounding the stator 4 and through which passes a rod 45 controlling a combined clutch and brake device connecting the rotor with a driving pulley 28. The pulley 28 is carried on a member 27 which can be slid on the shaft 13 by means of the rod 45 through the head 46 and ball-bearing 41. The member 27 has a conical face 26 engaging with a clutchleather 25 on the member 12 carrying the rotor 8. When the clutch is disengaged the opposite face of the member 27 comes in contact with a ring 31 forming a brake and carried by pivot-pins on a ring 33 which is itself supported in the casing 1 by pivot-pins 37 arranged eccentrically on screws 34, so that the ring 33 can be adjusted by turning the screws.
Patent GB-535035-A (GB)
Title: Improvements in or relating to combinations of wind-swept grinding or pulverising mills with classifiers
IPC: B02C17/18
Filed: 1939-11-08
Abstract: 535,035. Ball &c. grinding mills. NEWELL & CO., Ltd., E., and HOWDEN, P. Nov. 8, 1939, No. 29624. [Class 59] In combinations of wind-swept grinding mills with classifiers, the mills being of the type comprising a ball &c. containing rotary drum 3 into which the material to be reduced is introduced at one end 6 and from which the reduced material is aspirated from its other end 7 by a current of air flowing through the mill, an extractor fan 16 connected to the output of the classifier 14 aspirates a current of air through the classifier and the mill, the outlet 17 of the classifier for tailings or rejects is connected to a conduit 19 leading to the inlet of the mill and adapted to convey thereto the air current, means 22 ... 25 for feeding the raw material to be reduced are also connected to the conduit, the points of entry of the tailings and of the raw material into the conduit being sufficiently removed from the inlet to the mill to allow the particles to be accelerated by the air current to a speed approximately that of the current before they pass into the mill, and the classifier outlet connection to the conduit and the means for feeding the raw material thereto each terminate in an inclined feed shoot 21, 25 extending into the conduit to form a baffle therein adapted to set up venturi action on the air current. For pulverising coal and delivering the product to a burner the extractor fan aspirates a current of pre-heated air or gas along the conduit and through the mill, and then, together with the finer ground particles, through the classifier and the fan to the burner.
Patent GB-296607-A (GB)
Abstract: 296,607. Becker, G. F. Dec. 16, 1927. Holders.-Luminous tubes a, which may be combined to form advertising letters, &c. are of translucent or opalescent glass and contain a number of elongated lamps b, arranged in parallel. The end caps m of each lamp fit into holders c - - c<3> which are provided with clamp screw terminals and with a wire carrier e<1> comprising an insulating glass &c. tube g. By these means bare conducting wires d, f, which cast a minimum of shadow, may be employed. The holders c - - c<3> may be in the form of sockets, or of spring clips having arms which bear against the tube a and position the lamps centrally therein.
Patent GB-884038-A (GB)
Title: Improvements in or relating to melamine preparation
Filed: 1959-09-01
Abstract: Melamine is prepared by heating a mixture of dicyandiamide and ammonia under atmospheric pressure at a temperature of 300 DEG C. to 450 DEG C. in the presence of a catalyst consisting of an inert adsorptive material having a specific surface area of 100 to 1,000 metres2/gram.  Examples describe the process wherein the dicyandiamide and ammonia are fed into a heated fluidized bed of activated alumina, silican gel or activated carbon.  Infusorial earth, diatomite, activated pumice and other hydrous oxides such as titania, thoria and zirconia and mixtures thereof may also be used as catalysts.  Comparative experiments describe the use of fluidized sand at 400 DEG C. and fluidized alumina at 250 DEG C., with resulting lower yields of melamine.
Patent GB-505246-A (GB)
Title: Improvements in or relating to direct current electric generators
IPC: H02K23/46
Filed: 1937-11-02
Abstract: 505,246. Ezciting dynamos. GENERAL ELECTRIC CO., Ltd., and DAVIES, E. C. Nov. 2, 1937, No. 29984. [Class 35] Polepieces.-A direct-current generator with multiple field windings, more particularly a constant-current generator, is provided with a flux diverter and when a controlling operation is effected tending to suddenly decrease the load current, a further control associated therewith is effected simultaneously to decrease the flux diverted from the armature. In the form shown, shunts 4 extend between the main pole 3 and the adjacent main pole (not shown) and the coil 1 comprises shunt and separately excited turns opposed by a series winding, the generator supplying marine propulsion motors. The shunt carries windings 7 energized from the same source as and in proportion to the motor field windings to produce fluxes opposing the leakage flux of the main poles so that increasing the motor field strength and thereby causing the generator current to drop suddenly decreases the flux in the shunt 4. In a modification, the shunt extends from the pole to the generator yoke.
Patent GB-735127-A (GB)
Title: Improvements in or relating to adhesive compositions and methods of making the same
IPC: C09J109/02
Filed: 1952-11-27
Abstract: An adhesive composition comprises a rubber-like butadiene-acrylonitrile copolymer having an acetone-insoluble gel content of less than about 15 per cent and containing about 30 per cent of polymerized acrylonitrile, a phenol-formaldehyde resin, and optionally a tackifier, fillers and a volatile organic solvent. Mixtures of phenol-formaldehyde resins may be used and all types are mentioned, e.g. benzene-insoluble, methyl ethyl ketone-soluble, substituted phenol resins, and drying oil-modified resins.  The exemplified phenol-formaldehyde ingredient is a mixture of a "B" stage and a cashew nut oil-modified resin. Specified tackifiers are pinewood resins and reaction products of these resins with polyhydric alcohols and formaldehyde, pine tar, and coumarone-indene resins. Fillers mentioned are carbon black, zinc oxide and colloidal silica. The solvent may be acetone, methyl ethyl or methyl isobutyl ketone, methyl acetate, ethyl acetate, amyl acetate, alcohol, or mixtures. The butadiene-acrylonitrile copolymer of the desired gel content is obtained by milling a normal copolymer for a period of 3 to 60 minutes at a temperature of 175 DEG  to 325 DEG  F.
Patent GB-283698-A (GB)
Title: Improvements in parcel or article collecting or receiving receptacles provided with means for preventing the unauthorised extraction of articles therefrom
IPC: A47G29/22
Filed: 1926-11-27
Abstract: 283,698. Mitchell, A. R. Nov. 27, 1926. No Patent granted (Sealing fee not paid). Letter boxes and like receiving-devices. - In a parcel &c. receiving-device having a receptacle portion provided with an insertion opening closed by a cover and a screening-member arranged to prevent withdrawal of articles in the receptacle, the receptacle is provided with means for breaking the fall of the parcels &c. dropped into it. As shown, the hinged cover 4 is rigidly connected to the screening-member 5 and forms a secondary receptacle or shoot 9 in which the goods are placed and which slide therefrom into the receptacle 2 as the cover is closed and the member 5 moves out of the position shown where it prevents access to the goods in the receptacle from the opening 11; the goods are received in a canvas loop 12 suspended between the walls of the receptacle 2 and the fall of the goods is broken by the buffer 14 secured to or formed on the lower end of a piece of fabric 14<a> secured to the screening-member 5. The goods are removed from the receptacle through a door 3 which may be formed in an extension 18 which may extend through a wall or door of the house; one end of the loop 12 is secured to the door 30 as to form a slope down which the goods slide as the door is opened. In a modification the hinged cover is connected to a pivoted screening- member by a link.
Patent GB-1096928-A (GB)
Title: Process for preparing optically active pyrrolidone carboxylic acid
IPC: C07D207/28
Filed: 1965-07-15
Abstract: A mixture containing D(+)- and L(-)-pyrrolidone carboxylic acid is treated with L(-)-a -amino-e -caprolactam to form the corresponding diasteresisomeric salts; these may be separated by contacting the reaction mixture or product with a solvent (e.g. ethanol) which has a differential solvent effect on the mixed salts; thus the salt-formation may be carried out in the solvent with one form precipitating, or the solid mixture of salts may be extracted. The active pyrrolidone carboxylic acid may be obtained from the salt; the L(-)-form so obtained may be freed from DL-pyrrolidone carboxylic acid impurity by precipitating the latter from a saturated solution of L(-)-pyrrolidone carboxylic acid.  Hydrolysis of the optically active pyrrolidone carboxylic acid gives optically active glutamic acid.
Patent GB-1021181-A (GB)
Title: Dyeing process for polymers
Inventor: MERIAN ERNEST
IPC: D06P3/79
Filed: 1962-08-07
Abstract: Shaped articles of polyolefins, especially of polypropylene or polyisobutylene, are dyed at an elevated temperature with an aqueous preparation containing a dye of formula <FORM:1021181/D1-D2/1> wherein X is alkyl, preferably C1-5, or Cl or Br.  The polymer to be dyed contains e.g. Ni, Cr, Co or Al in the form of catalyst residues and/or stabilisers.  The term "shaped articles" includes filaments, fibres, yarns, slubbing and tops, nonwoven and woven fabrics, knitted goods, films, foil and tubing.
Patent GB-521445-A (GB)
Title: Improvements in the manufacture of cans, boxes and like containers and to material therefor
IPC: B65D3/00
Filed: 1938-10-19
Abstract: 521,445. Compound fabrics. HACKFORD, J. E. Oct. 19, 1938, No. 30233. [Class 140] [Also in Groups IV and XVII] Bottles, jars, cups, cans, boxes and. like containers, e,g., for storing liquids, are made from a homogeneous cellulose or regenerated cellulose sheet material which has been converted through part of its thickness into a cellulose nitrate. Preferably part only of one side of the sheet is subjected to the treatment, leaving an untreated selvedge. The sheet may be painted or coated with a mixture of sulphuric acid and nitric acid. After the treatment, the sheet is preferably washed. As shown in Fig. 4, a sheet 3 of cellulose or regenerated cellulose has been treated on one side with a nitrating solution and converted to cellulose nitrate to a slight depth as shown at 4, leaving a selvedge 5 untreated. It is secured to a backing sheet 6 by an adhesive, and the selvedge 5 is wrapped round the edge of the backing sheet as shown at 7, so that this untreated portion may be cemented to the similar wrapped edge of the;opposite side of the sheet when folded round to form a hollow container. As shown in Fig. 5, the cellulose strip is wound upon a' mandrel to form a hollow body, the overlapping portions 5 and the back of the strip being those parts which have not been converted to cellulose nitrate. The backing sheet if used may be of cardboard, paper or metal. For securing untreated parts of the cellulose or regenerated cellulose sheet together there may be used as an adhesive a plasticised phenol or cresol formaldehyde resin. The containers may be used for packing foods, ink, paint, essences, or other materials.
Patent GB-192521-A (GB)
Title: Improvements in and relating to electric terminals
IPC: H05B3/06
Filed: 1921-11-14
Abstract: 192,521. British Thomson-Houston Co., Ltd., (General Electric Co.). Nov. 14, 1921. Wire and ribbon resistances, embedded, encased, and cored.-A terminal member, for example, that of a resistance element, is formed with intersecting apertures 18, 19 and into the longitudinal one 18 a conductor 17 is inserted. The crosssection or diameter of the terminal is then reduced by swaging so that the conductor becomes locked in the transverse aperture or recess as in Fig. 3. Portions 22', 22 of the terminal are not reduced in diameter by the operation described. The former is squared in dies and the latter, which is tapered, is transversely drilled at 21. The terminal is inserted in a hole in the resistance are and the resistance wire having been passed into the hole 21 the terminal is turned to wind up the wire upon the tapered portion thus wedging it and the terminal into firm contact and taking up any slack in the wire. The terminal is subsequently secured by pressure applied externally of the resistance unit which causes the core to " flow " and fix the squared portion. The Specification describes the application of such terminals to a resistance unit constructed as in Specification 153,661.
Patent GB-304579-A (GB)
Title: Improvements in or relating to rectifying units for electric current
IPC: H02M7/06
Filed: 1927-11-14
Abstract: 304,579. Siemens Schuckertwerke Akt.-Ges., and Scharowsky, G. Nov. 14, 1927. Divided on 296,596. S t a t i c contact rectifiers, arrangements of.-A rectifier of the metal oxide type is made up in the form of a cartridge comprising a cylindrical insulating casing 8 having end contacts 9 of the interengaging plug and socket type. Connection with the A.C. supply is made by means of a plug element 12, the D.C. load circuit being connected to a socket element 10. The rectifier elements within the casing 8 may be connected in series or, in order that both half waves of the A.C. may be utilized, they may be arranged in the form of a bridge or Grõtz connection.
Patent GB-991389-A (GB)
Title: Suspension spring for seats, mattresses and the like
IPC: A47C23/16
Filed: 1963-08-01
Abstract: 991,389. Spring upholstery. R. H. SARKIS. Aug. 1, 1963 [Dec. 14, 1962], No. 30521/63. Heading A4M. [Also in Divisions F2] A sinuous steel wire spring for use in seats, mattresses &c. includes a central portion 1 which in the relaxed condition of the spring has a radius of curvature which is less than the radius of curvature of the ends 2 and 3 of the spring so that, when the spring is opened out and connected at the ends 2, 3 between frame members, sagging of the central part of the mattress &c. is mitigated by the upwardly convex central portion 1.
Patent GB-1006310-A (GB)
Title: Arrangement for cutter heads for hair cutting machines
IPC: B26B19/20
Filed: 1964-08-04
Abstract: 1,006,310. Hair clippers. G. KLINDER, and H. GENG. Aug. 4, 1964 [Sept. 7, 1963], No. 30529/64. Heading B4B. The cutter head of a hair clipper is provided with a rotatable conical guide roller 3. The roller is rotatable on an axle pin 4 or on axle ends. The pin 4 is provided at one end with a screw thread and at the other end with a slot for fitting into lugs 2<SP>1</SP> provided on a U-shaped sliding carriage 2 fitted with reinforcing pieces 5. If the carriage is made by punching, the lugs 2<SP>1</SP> are punched at the outer ends of the carriage and bent at an angle. If the carriage is made by die-casting, the parts 2, 2<SP>1</SP> and 5 are preferably made in one piece. Alternatively, the roller may be fitted directly on to the cutter head. The roller is made from plastic, metal or hardwood, or has a covering of plastic. The ratio of the largest to the smallest diameter is preferably 5 : 3.
Patent GB-1478063-A (GB)
Title: Optical fibre manufacture
IPC: C03B37/027
Filed: 1974-07-11
Abstract: 1478063 Optical fibres STANDARD TELE PHONES and CABLES Ltd 11 July 1974 30699/74 Heading C1M An optical fibre, or preform therefor, is made by depositing Al 2 O 3 , with or without SiO 2 , on the bore of a glass tube by a chemical vapour reaction in the absence of hydrogen or hydrogen containing compounds and then heating to collapse the tube. The original tube may be of SiO 2 , and may be in the form of a lining on a basic tube, which itself may be deposited by chemical vapour reaction in the absence of hydrogen. Chemical vapour reactions disclosed are treatment of halides with oxygen. The tube may be rotated during collapse.
Patent GB-192820-A (GB)
Title: Improvements relating to motor-cycle, cycle and analogous saddles or seats
IPC: B62J1/04
Filed: 1921-11-18
Abstract: 192,820. Brooks & Co., Ltd., J. B., and Brooks, B. Nov. 18, 1921. Addition to 164,898. Saddles.-The saddle, instead of being mounted on one or more pairs of parallel-motion links acted upon by leaf springs, as described in the parent Specification, is mounted on three parallel-motion links arranged in upper and lower planes, two in one plane and one in the other, and acted upon by leaf-springs. In the construction shown in Figs. 1 and 2, two lower links 4 are pivoted to depending brackets 2 on the saddle top 1 and to plates 6 on the carrier &c. A single upper link 7 is pivoted to a bracket 8 on the saddle top and to a bracket 9 carried by a transverse member joining the plates 6 upon opposite sides of the carrier. Quarter-elliptic leaf springs 10 are secured to the plates 6 and engage lateral pins 11 on the brackets 2. Semielliptic springs and extended links ma.y be employed, as described in the parent Specification.
Patent GB-1399744-A (GB)
Title: Method and apparatus for making sheets and tubes for forming into bags
IPC: B29C48/09
Filed: 1972-06-30
Abstract: 1399744 Extruding interengageable rib formations MINIGRIP (LONDON) Ltd 30 June 1972 [30 June 1971] 30834/72 Heading B5A An extruded plastics tube or sheet, includes a pair of integral rib formations which are interengageable manually, or by a cursor, to act as closures for a bag made from the tube or sheet. The tube or sheet is stretched from the extrusion die and the size of the ribs is controlled independently of the width and thickness of the stretched tube or sheet, by regulating the rate of extrusion from the rib defining portion of the extrusion orifice independently of the rate from the tube or sheet defining portion. The size of the ribs may be maintained constant for a sheet or tube of different width and the same thickness. The embodiment relates to the extrusion of a tube from an orifice including an annular tube defining portion 19 and rib defining configurations 20a, 20b, formed between a core 12 and surrounding die part 11. The extruding tube is stretched by inflating air admitted to its interior through a core passage 27, and the bags are formed by transverse tube welds along which the tube is cut. The plastics flows to the orifice portion 19, from a die inlet chamber 13, around the legs 16 of a spider 10 to which the core 12 is secured by a bolt 17. The orifice portions 20a, 20b are each supplied with the plastics, by separate branches from a passage 21, connecting through the core 12 and the spider 10 to the chamber 13 upstream of the spider legs. The rate of extrusion from the orifice portion 19 is varied by the speed of the extruder delivering to the chamber; the inflation of the extruded tube is varied by variation of the inflating air pressure delivered to the extruding tube interior, via the passage 27 extending through the bolt 17 and a passage 25 through a spider leg 16; and the rate of extrusion from the orifice portions 20a, 20b, is varied independently by valving of the passage 21 by a manually actuated valve 23, 22 threadedly engaging through a spider leg 16. The expanding air pressure, and extrusion rates from the orifice portion 19, and 20a, 20b, may be automatically varied to maintain a desired relationship therebetween.
Patent GB-899505-A (GB)
Title: Improvements in or relating to vertical speed indicators
IPC: G01P3/62
Filed: 1960-09-07
Abstract: 899,505. Aircraft instruments. LITTLE, D. S., and PIKE, E. W. Sept. 7, 1960 [Sept. 10, 1959], No. 30851/60. Class 4. [Also in Group XXXVIII] The glide slope needle 22 of a horizontal director indicator 10, which gives pitch and roll information, is used as a vertical speed indicator when it is not being used to indicate displacement from the glide path during instrument landing. The vertical speed is continuously displayed on indicator 14 and needle 22 can be coupled through selector switch 62 and matching circuits 70, 71 and 73 to the input of indicator 14. The matching circuits may be adjusted so that needle 22 indicates vertical speeds in the ranges -300 to -500 ft./min., -500 to +500 ft./ min., and 0 to 1,000 ft./min. for landing, level flight and take-off respectively. The desired vertical speed is maintained by holding the tip of aircraft indicator 18 level with needle 22.