baber/WOPTO huggingface dataset:
Patent GB-766290-A (GB)
Title: Ethylene terephthalate-ethylene isophthalate copolyesters
IPC: C08G63/181
Filed: 1954-11-26
Abstract: A random ethylene terephthalate-ethylene isophthalate copolyester contains ethylene terephthalate units in an amount from 15 to 95 per cent of the sum of the ethylene terephthalate and ethylene isophthalate units.  A table shows the solubilities of various copolyesters in cyclohexanone, acetophenone, methyl benzoate, tetrahydrofuran, chloroform, ethylene dichloride, tetrachloroethane, nitroethane and thiophene.  In an example a mixture of dimethyl terephthalate, dimethyl isophthalate, ethylene glycol and litharge was heated at 140-240 DEG  C. until all of the methanol was liberated, then the pressure was reduced to 10 mm. of Hg and heating continued at 240 DEG  C. until most of the ethylene glycol had distilled off.  Finally the material was heated at 270 DEG  C. and 1.0 mm. of Hg.  Films of the copolyester may be made by extrusion or moulding or by casting from solutions.  They may be orientated by stretching them longitudinally or in two directions at rightangles. In examples: (1) sheets were moulded 0.008 inch thick and immediately after moulding they were quenched in ice water, then warmed and stretched in two directions at right angles; (2) a layer of copolyester dissolved in ethylene dichloride was spread on a glass plate which was first heated at 66 DEG  C. until all odour of solvent had disappeared and the film was sticky and was then heated at 80 DEG C. to stiffen the film and make it non-sticky.  Specification 673,066 is referred to.
Patent GB-366619-A (GB)
Title: Improvements relating to drags for spinning and like machines
IPC: D01H7/44
Filed: 1930-11-14
Abstract: 366,619. Bobbin drag arrangements for flyer spinning and like frames. MACKIE & SONS, Ltd., J. and MACKIE, J. P., Albert Foundry, Belfast. Nov. 14, 1930, No. 34346. [Classes 120 (ii) and 120 (iii).] In spinning, twisting, and like frames in which the bobbins rotate on dead spindles, each bobbin carrier is provided on its underside with pivoted arms carrying friction pads and movable parallel to the plane of the underside of the carrier, and with positive stops which determine a number of positions in which the pads can be set to produce given drag effects. A bobbin carrier 2, Fig. 2, rotating round a dead spindle 3 is connected with its bobbin by means of studs and it carries on its underside pivoted arms 8 of spring steel the free ends of which are bent up to form tangs 9 to hold circular or other pads 10 of leather, rubber, felt, or the material known under the registered Trade Mark " Ferodo." A portion of each arm is also punched out to form a tang 11, Fig. 3, to engage in any one of a number of holes 6 arranged in an are of a circle about the pivoting point of the arm, the arrangement being such that the arm can be sprung from one position to another. The arms 8 may be rigid and their pivots constituted by nuts and bolts, and spring-pressed washers may be provided on the bolts to allow the position of the pads to be altered without slackening the nuts. In a modification, the arms 8 are thrown outwards by centrifugal force against pins inserted in the holes 6.
Patent GB-482975-A (GB)
Title: A process for the extraction of fossil gum from lignite and like substances
IPC: C09F1/00
Filed: 1936-12-15
Abstract: Resins, fossil gums, &c., are extracted from lignite and other solid carbonaceous materials by grinding the carbonaceous materials to 300 mesh or finer in association with water to liberate the resins &c., transferring the ground mass to settling vessels, and withdrawing the products at their respective settlement levels.ALSO:The binding-materials, i.e. resins, fossil gums, fatty materials, and fatty acids, ozokerite, and the like, are extracted from lignite and other solid carbonaceous materials by grinding the carbonaceous materials to 300 mesh or finer in association with water to liberate the binding materials, transferring the ground mass to settling vessels, and withdrawing the products at their respective settlement levels.
Patent GB-521769-A (GB)
Title: Improvements in and relating to picture hooks
IPC: A47G1/16
Filed: 1938-11-25
Abstract: 521,769. Picture hooks. PENN, F. J., and DICKINS, R. V. Nov. 25, 1938, No. 34414. [Class 89 (ii)] In a picture hook provided with means for securing it to a wall or adapted to be engaged with a picture rail, there is pressed up from the cordengaging hook part 33 -a hook-like tongue 32 forming an aperture 31, the cord being gripped between the tongue and the aperture. The tongue may be rigid, resilient, or deformable, and may press the cord partly into the aperture.
Patent GB-818813-A (GB)
Title: Improvements in film magazines for cinematograph cameras
IPC: G03B17/26
Filed: 1955-12-02
Abstract: 818,813. Kinematographic cameras. BOLSEY, J. Dec. 2, 1955 [June 17, 1955], No. 34544/55. Class 97(1) In a film magazine a pressure plate is mounted on resilient members extending through film channels formed between outer and inner walls of the magazine and the film is pinched where it leaves and enters the magazine. The film A does not cover the raised lateral margins of the pressure plate 38 and these raised margins are engageable by the film gate a of a camera to face the film from the pressure of the resilient members. As shown, a pressure plate portion is stamped in a leaf spring 18 for which the parts 20 of inner wall 22 form a counter support. The inner surface of wall 11 of the bottom portion of the magazine has a stepped portion which guides the film by engaging only its perforated margin, there being no corresponding stepped portion on lid 27. Take-up core 23 has a ratchet tooth engaging upstanding tongue 36 of spring plate 35 to prevent the core from rotating in the reverse direction. A similar tongue 37 is provided to brake the supply spool core 24. A bar 50. engaging only a perforated margin of the film, extends between the cores from pivot 51 and prevents the film coils from rubbing together.
Patent GB-383086-A (GB)
Title: Improvements in or relating to pit props
IPC: E21D15/54
Filed: 1931-12-14
Abstract: 383,086. Mine props. PATON, J., Central Workshops, Cowdenbeath, Fifeshire. Dec. 14, 1931, No. 34558. [Class 20 (ii).] Head and foot fittings are secured to section-metal pit props by riveting or spotwelding. The head B may be rounded and the foot C pointed, or both head and foot may be rounded. The head may be flat or corrugated, or both head and foot formed of truncated-wedge section with flat bearing portions. Reference has been directed by the Comptroller to Specifications 13528/99, 7148/04, [both in Class 20, Buildings &c.], 115,956 and 269,571, [both in Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.].
Patent GB-477936-A (GB)
Title: Retorts for low temperature carbonization
IPC: C10B49/00
Filed: 1936-12-16
Abstract: 477,936. Retorts for low-temperature carbonization. JARRY, G. L. Dec. 16, 1936, No. 34592. Convention date, Dec. 24, 1935. [Class 55 (i)] Solid fuel, including lignite and peat, is distilled in a number of cylindrical metal retorts b<1> to b4 in an inclined setting c the material being traversed through each retort and through connecting conduits d<1>, d2, d3 which feed the material from the lower part of one retort directly to the lower part of the retort below. Each retort is maintained at a different temperature which governs the composition of the distillates escaping through outlets f<1> to f<4>. Hot gases from a furnace g pass upwardly around the retorts to an outlet a. Each retort is provided with stirring members mounted on a rotary shaft and consisting of discs carrying bucket-shaped portions h leading to troughs i along which the material from the buckets pass.
Patent GB-1048859-A (GB)
Title: Telephone queuing system
Inventor: ARSENEAU ROGER EDWARD
IPC: H04M3/523
Filed: 1965-08-13
Abstract: 1,048,859. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Aug. 13, 1965, No. 34719/65. Heading H4K. In a queuing arrangement, subscribers' lines 50 are extended to links 52 which are connected by way of wires 93 according to the character of the calls to four series of queuing circuits 62 . . . 63, 65 . . . 66, 68 . . . 69, 71 . . . 72 which control respectively a priority store 64, a recall store 67 (for subscribers wishing to recall an operator), an ordinary call store 70 and an intercept store 73. When an operator answers by operation of a key 75 the call at the head of the queue 64, 67, 70 of the highest priority is dealt with by the establishment of a path X1, Y1 through a queue access matrix 60, and the current fed back over X1 to the link 52 is sufficient to switch the call to the operator's circuit 53. Intercept calls, which may arise from incomplete or faulty dialling, are routed to a predetermined number which may be changed as required, and the operator or other person thereat effects the extension of the call at the head of the intercept queue by means of a circuit 81.
Patent GB-753124-A (GB)
Title: Improvements in or relating to lifting devices for handling convection spacer discs
IPC: B66C1/54
Filed: 1954-12-01
Abstract: 753,124. Lifting-devices for handling convection spacer discs. HEPPENSTALL CO. Dec. 1, 1954 [Dec. 18, 1953], No. 34776/54. Class 78 (4). Apparatus for handling convection spacer discs 11 used to separate stacked coils of strip metal 10 during cooling, comprises a mandrel provided with three equispaced longitudinal channels 14; a latching pawl 23, a pawl operating cam 30, and a guide shoe 16 pivoted respectively at 24; 29 and 17 in each channel; a spring link connection 36 between each pawl and cam; abutments 38, 43, adapted to co-operate with the tails of the pawls and cams; guide shoe operating members 18, 19; and a manually actuated cam 47 which, through levers 41, 46, a rod 20 and sleeves 37, 42, selectively moves the abutments 38, 43, and member 19 into positions which pre-set the apparatus so that on each lowering it automatically deposits one of a stack of discs on to a coil, or picks up one or more discs, or releases all of the discs stacked thereon.
Patent GB-1122522-A (GB)
Title: Comminuting machine
IPC: B02C18/30
Filed: 1966-08-03
Abstract: 1,122,522. Comminuting meat. OSCAR MAYER & CO. Inc. 3 Aug., 1966 [9 Aug., 1965], No. 34779/66. Heading A4C. A comminuting machine, especially for meat, comprises a hopper 19 from which the meat is fed into a cutting chamber in which a plurality of knives 34 rotate at high speed against a fixed cylindrical perforated cutting plate 16. The knives are pressed against the cutting plate by fluid, e.g. air, pressure acting on pistons 28 within the knife holders and applied through hollow shaft 12. Ejector blades 44 attached to bottom plate 20 rotate within the annular discharge chamber 43 to move the finished product to the outlet (not shown).
Patent GB-1463188-A (GB)
Title: Tetrafluoroethyl ethers and process for the preparation thereof
IPC: A61K31/08
Filed: 1974-08-07
Abstract: 1463188 Tetrafluoroethyl ethers HOECHST AG 7 Aug 1974 [10 Aug 1973] 34854/74 Heading C2C [Also in Division A5] Novel 1,2,2,2-tetrafluoroethyl ethers of Formula I in which R is straight or branched-chain C 1  to C 6  alkyl, the radical -CH 2 CH (3-n) X n  where n is 1, 2 or 3 and X is F and/or Cl, or the radical -(CH 2 ) m -OCHF-CF 3  where m is 2, 3 or 4, are prepared by (a) reacting a fluoral hemiacetal of the Formula II with an amine of Formula III or IIIa where R<SP>1</SP> and R<SP>11</SP>, which may be the same or different, are straight or branched-chain C 1  to C 6  alkyl or cyclohexyl, or together form a C 4  or C 5  alkylene group the carbon chain of which may be interrupted by an oxygen atom; (b) fluorinating a 1,2,2,2-tetrahalogenoethyl ether of Formula IV where u is 0 or 1, and n is 1 or 2 when u is 1 and is 1, 2 or 3 where 4 is 0; (c) reacting a fluoral hemiacetal of Formula II with sulphur tetrafluoride; or (d) reacting a 2,2,2-trihalogeno-1- chloroethyl ether of Formula V where n is 1, 2 or 3, with mercury difluoride and, if n is 1 or 2, further reacting the reaction product by the process of method (b) to obtain the compound of Formula I. The compounds of Formula I are used as inhalation anaesthetics.
Patent GB-1164927-A (GB)
Title: Containers for Packaging.
Inventor: WATTS RIDLEY
IPC: B65D30/08
Filed: 1967-07-28
Abstract: 1,164,927. Bags. AMERICAN PACKAGING CORP. 28 July, 1967, No. 34871/67. Heading B8K. A bag is made from a frame 10, heat sealed to a sheet of flexible material, e.g. polythene film, the so-formed blank being folded in half with the flexible material inside and the side edges 42, 43 joined, e.g. by heat sealing or adhesive. The flexible material is heated and stretched in the aperture before the blank is folded. Perforations or score lines 36-39 facilitate forming a wide open mouth in the bag for filling &c. by pressing the ends of the bag mouth towards each other. In a modification, the blank has an extra transverse panel symmetrical about the fold lines 20 and constituting a bottom margin for the bag. In both forms perforations 22, 24 are provided so that above these the bag may be sealed, e.g. by heat sealing, adhesive, or stapling, and later opened by tearing at the perforations.
Patent GB-1248388-A (GB)
Title: Method of and apparatus for heating a gaseous medium
Inventor: VERNAZZA JULIUS
IPC: F24H9/20
Filed: 1970-07-17
Abstract: 1,248,388. Heating air by direct contact with combustion gases; controlling burners. H. KRANTZ VERWALTUNGS G.m.b.H., [trading as H. KRANTZ]. 17 July, 1970 [26 Aug., 1969], No. 34872/70. Headings F4B, F4K and F4T. [Also in Division G3] In apparatus for heating and distributing a gaseous medium wherein hot gases leave a heating chamber 1 containing a burner 3 by way of ducts 8 and admix with air discharging from secondary air ducts 9, each duct 8 is provided with a flap valve 12 whose position is automatically adjusted to maintain the temperature of the gaseous mixture, as sensed by a resistance thermometer 11, at a predetermined value. The flap valves 12 are actuated via potentiometers 13 by adjusting motors 14, the potentiometers being connected in series via lead 18 to a regulator 7 and motor 6 which control the quantity of heat energy released by the burner 3. Air and gas are supplied to the burner by way of pipes 4 and 5. Temperature regulators 15 communicate with the thermometers 11 and adjusting motors 14 by means of leads 16 and 17. Fans 10 supply the various streams, each heated to its required temperature, to the points of utilization. Return ducts (not shown) are provided whereby gas which has been used and so cooled can be returned to the heating chamber.
Patent GB-1531426-A (GB)
Title: Unitary construction of dwelling houses
IPC: E04H1/02
Filed: 1976-08-17
Abstract: 1531426 Prefabricated house units ELLIOTTS OF PETERBOROUGH Ltd 17 Aug 1976 [22 Aug 1975] 34933/75 Heading E1A A prefabricated house is formed on conventional footings 11, surrounding a flat concrete base projecting above the level of the footings by placing prefabricated house units 15, 16 thereon and securing them adjacent each other by means of lugs or fish plates 14 projecting from the base. The partition walls of the units project downwardly below the outer walls of the units and engage in grooves 13 in the base. Window and door openings are provided in outer and partition walls and an exterior cladding of bricks or other material surrounds the adjacent house units and through which the window and door frames in the outer walls of the units project. Service conduits may be provided between the floor 56 of an upper unit and the ceiling 57 of a lower unit. The units may be of timber frame construction infilled with insulating quilts and clad with plasterboard or hardboard sheets. The exterior finishing over the assembled units may be of bricks, concrete slabs or building boards or may be similar construction to the units with the outer cladding sheet of plywood. Plastics may be formed in situ between the units and the exterior cladding.
Patent GB-465937-A (GB)
Title: Improvements in matrix composing and type-line casting machines
IPC: B41B11/38
Filed: 1936-12-19
Abstract: 465,937. Type-bar-making machines. INTERTYPE, Ltd. Dec. 19, 1936, No. 34938. Convention date, Aug. 20. [Class 100 (iii)] Quadding-apparatus.-In apparatus of the kind described in Specification 387,254, wherein the vice-jaw locking means are held out of action by an adjustable stop in the case of lmes composed nearly of full length, so that such lines may be justified to full column width, the range of adjustment of the stop is increased, in order that short lines of any selected length may be quadded exactly to a desired short-line measure. Lines of the exact length necessary to fit around cuts &c. inserted in the text can thus be produced.. Other short lines will, as usual, be quadded to random or irregular lengths. The jaw-locking pawl 14, which, when released, is raised by a spring into engagement with the jaw-operating rack-bar 5, is normally held down, as described in Specification 450,827, by a latch 19, which is tripped by the advance of the mould-disc. A gravity pawl 22, pivoted to the rack-bar, rests on the pawl 14 and has a lug 22a, which may co-operate with an adjustable member 24 to prevent the rise of the locking-pawl when it is released. According to the invention, the member 24 is made adjustable over a much wider range than heretofore, for example, an additional fifteen ems, so that it may come into action in the case of short lines, which are composed a little short of a certain selected length. The member 24 is carried by a slide 40, which is adjusted with the aid of a pointer and a scale. The locking- pawl 14 is, as heretofore, pivoted to a lever 16, which, during justification, is forced to the right by a roller 27 on the justification-bar 28 in order to clamp the matrix-line. When short lines are to be quadded to a definite extent, the lever 16 is moved out of the path of the roller 27 by a cam 29, operated by a handlever 33, so that no clamping movement of the jaws occurs. The lines are composed to such a length that the member 24 overlies the lug 22a on the pawl 22, so that the pawl 14, when released, does not immediately engage the rack-bar. During justification, the pawl 22 escapes from the member 24, the pawl 14 engages the rack-bar, and the line is justified to the definite short measure. Specification 402,809 also is referred to.
Patent GB-507592-A (GB)
Title: Improvements in the manufacture of acid anhydrides
IPC: C07C51/56
Filed: 1937-12-17
Abstract: 507,592. Acid anhydrides. OXLEY H. F., and THOMAS, E. B. Dec. 17, 1937, No. 34987. [Class 2 (iii)] Acid anhydrides are made by introducing the vapour of a lower anhydride such as acetic anhydride below the surface of a liquid higher acid maintained in the liquid phase (if desired by means of a solvent) and allowing the vapour of the lower acid to escape. The process'may be applied to the production of the anhydrides of propionic, n and iso-butyric, caproic, caprylic, capric, and myristic acids, acids containing aromatic groups such as benzoic, phenyl-acetic and naphthoic acids, unsaturated acids such as oleic and cinnamic acids, and polycarboxylic acids such as succinic acid. Other lower anhydrides can be used instead of acetic anhydride. Examples describe the production of the anhydrides of lauric, palmitic, and stearic acids. Reduced pressure may be employed.
Patent GB-367441-A (GB)
Title: Improvements in or relating to tightening devices for use in tightening bands or thelike
IPC: B65B13/02
Filed: 1930-11-20
Abstract: 367,441. Package-strapping apparatus. BRADLEY, D. A., Normandy House, Colney Hatch Lane, Muswell Hill, and COLE & MEAD, Ltd., 42, Wolfington Road, West Norwood, both in London. Nov. 20, 1930, Nos. 35032/30 and 13588/31. [Class 45.] After the tensioning operation has been performed in a packagestrapping apparatus wherein one end of a strap or wire is passed through a clip secured to the other end and the strap &c. tensioned as by being wound on to the boss 50, Fig. 1, of a shaft 49 rotated by a lever 57 through a pawl and ratchet 55, 54, the shoe 40 on which the tensioning means is supported is moved by a handle 84 through 180‹ about the clip as centre whereby the end of the strap &c. secured to the tensioning shaft is bent back upon itself about the clip. The shoe is guided around tracks formed in the opposing faces of two spaced annular members 16 which are secured together at 29 in such a way as to leave gaps 18, 20 as shown. The clip 24, Fig. 5, which may be one as described in Specification 367,440, [Group XVII], is held against an adjustable abutment 36, Fig. 1, and the package 22 is secured in the gap 20 by means of a cam-actuated clamping plate 80. A pair of plungers 64 slidably mounted in bosses 60 secured to the supports 16 and normally drawn outwardly by springs 70 are depressed to engage and fold over the ears of the clip when the shoe 40 reaches the end of its travel. As shown the shoe may be provided with a wedge-shaped cam 75 which engages one end of a pair of levers 72 of which the other ends engage the plungers 64. A knife 86 carried by the shoe coacts with a stationary blade 87 at the end of the movement of the shoe. In the modification shown in Fig. 6 a cam 90 rotatably mounted on the shoe is manually rotated by a handle 92 to actuate the bolts 64 and a knifeactuating lever 94 at the end of the travel of the shoe. In the modification shown in Fig. 8 the support for the tensioning and securing means comprises an L-shaped member 100, 102 which engages a corner of the package 22 and the clip is held in a recess, not shown, in the vertical limb and the band is strained on to the slotted boss 50. After tensioning, the operating lever 57 is moved into contact with a stop 104 on the shoe 40 and the shoe is moved around its support to the dotted position shown until the lever 57 contacts with a fixed stop 106. A lever 124 pivoted to the horizontal baseplate 100 is then swung counterclockwise against a spring 128 to operate a gear train which rotates a pair of mutilated rollers for closing the ears of the clip on the strap &c. This movement of the lever 124 also actuates a cutter 86 through a link 126.
Patent GB-1210854-A (GB)
Title: Improvements in and relating to apparatus for photographic processing
IPC: G03B17/50
Filed: 1968-07-23
Abstract: 1,210,854. Photographic developing device. RICOH K.K. July 23, 1968 [Aug.4, 1967], No.35083/68. Heading G2A. A developing device comprises an annularly disposed roller group 9 both ends of which are tightly pressed against a pair of opposed end  plates respectively, with adjacent rollers being pressed against each other to form a liquid-tight space 14 which contains a developing solution. Each roller has a toothed wheel (10) at one end adapted to engage with those of the two adjacent rollers so that by tuning one of them by means of a knob (13), all of the rollers rotate. The device attaches to a camera 17, comprising lens 1, mirrors 2, 3, exposure aperture 4 and a printing paper 5 down from cassette 6. The exposed printing paper passes into the developing device through a slot 15 in the housing 12 and emerges through slot 16 after passing through the developing solution, transported by rotation of the rollers.
Patent GB-1525253-A (GB)
Title: Wheel equipped with brake particularly for motor-cycles
IPC: B62L1/02
Filed: 1975-08-26
Abstract: 1525253 Disc brakes D BERNARDI 26 Aug 1975 [30 Aug 1974] 35160/75 Heading F2E A wheel assembly includes a caliper embracing the inner edge of a brake disc 10 secured to or integral with an edge of a cylindrical shell 8 supported by brackets 7 on the wheel hub 6; the wheel spokes 9 are attached to ribs 13 on shell 8. A counterweight or a further disc with a separate caliper may be mounted on the other side of the shell. The caliper (Fig. 6, not shown) is formed in two parts and has a hydraulic actuator on each side of the disc. Shell 8 has cooling apertures (Fig. 5, not shown) and may carry lugs (Fig. 7, not shown) rather than ribs for attachment of the spokes. The wheel may consist of a single light alloy casting.