baber/WOPTO huggingface dataset:
Patent GB-1030642-A (GB)
Title: Improvements in and relating to tetrahedral containers
IPC: B65D75/58
Filed: 1964-02-18
Abstract: 1,030,642. Making tetrahedral packages. CLEMSON INDUSTRIES Inc. Feb. 18, 1964 [Feb. 25, 1963], No. 6778/64. Heading B8C. A tetrahedral container, formed of a laminated material, the inner layer 22, Fig. 2 (not shown), of which is thermoplastic, has an aperture 4 covered by a tape 7 bonded to the container wall and having an end portion 8 forming a pull tab. The container wall consists of two layers 20, 21 of paper laminated alternately with two layers 22, 23 of polyethylene. The heatsealing of the tape 7, which comprises a paper layer 24 and a polyethylene layer 25, causes the polyethylene layer 25 to impregnate the paper layer 21 of the container, as shown at 26 and to form a head 27 or 27<SP>1</SP> at the aperture 4. The container may be formed of polypropylene, P.V.C., polyvinyl acetate, nylon or polyester laminated to paper, fabric, aluminium foil, or lead foil. The tape may be formed wholly of one of the thermoplastic materials given. Tape-applying mechanism.-The tetrahedral containers are formed of laminated web material 30, Fig. 3 (not shown), punched by a mechanism 40 to form pairs of holes 41, 42 which are sealed by portions of tape fed from rolls 62, 63 and heat-sealed to the web 30 by platens 76, 77 before the web passes to forming and filling apparatus 35-38. The apertures 41, 42 are formed by a solenoid-operated punch lever 52 actuating punches 56, 57, the circuit being cam-controlled in relation to the movement of sealing bars 37, 38. The tape sealing mechanism is mounted on a reciprocable carriage 61, the tapes being intermittently advanced by driven rollers 64, 65 through guide slots 70, 71. Cutting edges 78, 79 mounted on the platens 76, 77 co-operate with the slots 70, 71 to cut the tapes. The carriages 61 strikes a push rod 110 to effect the pneumatic actuation of the rollers 64, 65 and the lowering of the platens 76, 77, the pressure of which on the web 30 causes the carriage 61 to be drawn along by the web. The tape portions are heat-sealed in position as the carriage moves with the web. On actuation of a push-rod 120, the platens 76, 77 are raised and the carriage 61 reversed.
Patent GB-1497821-A (GB)
Title: Plastics cap with guarantee ring for containers
IPC: B65D41/34
Filed: 1975-02-18
Abstract: 1497821 Screw cap with guarantee ring KONINKLIJKE EMBALLAGE INDUSTRIE VAN LEER BV 18 Feb 1975 [25 Feb 1974] 6866/76 Heading B8T A tamper-proof closure comprises an upper, internally threaded cap X and a lower guarantee ring Y connected to the cap by webs B which bridge a gap or weakened zone. The minimum internal diameter of the ring is equal or substantially equal to the maximum external diameter of the cap and the facing end edges of the cap and ring are tapered. The ring has an upper external flange whose upper surface is inwardly and upwardly inclined or curved as shown; in either case the lower edge of the cap has a similar opposed surface. The webs B may be located inside or outside the cap and ring.
Patent GB-572927-A (GB)
Title: Improvements in or relating to gas-operated automatic firearms
IPC: F41A21/48
Filed: 1942-05-21
Abstract: 572,927. Automatic firearms. BIRMINGHAM SMALL ARMS CO., Ltd., FAULKNER, H. A., and WACKROW, R. D. May 21, 1942, No. 6908. [Class 119] A transverse rotary locking-pin 3 for the barrel 1 of a gas-operated automatic gun has flats 6 out therein which, in the locking position, Fig. 1, lie above the top edges of the side-bars of the piston-extension 7. The pin can only be rotated to free the barrel when the breech is fully open and the piston held rearwards by engagement between the sear 12 and bent 11. In this cocked position, notches 9 in the sidebars are situated below the pin 3. Unlocking rotation of the pin 3 causes the flats 6 to engage the ends 10 of the notches 9, as shown in Fig. 3, and to retract the piston assembly slightly beyond the cocked position, thus holding the bent out of contact with the sear and leaving the trigger 13 inoperative.
Patent GB-325708-A (GB)
Title: Improvements in line-carrying rockets
IPC: F42B12/68
Filed: 1929-03-04
Abstract: 325,708. Schermuly, C. D. March 4, 1929. Pyrotechnic devices.--A rocket comprises a fore tube A rigidly attached by a fitting D to a smaller diameter rear tube B. Both tubes carry explosive material, that in tube A discharging through symmetrically disposed vents a in the fitting D and that in tube B through a central hole in a choke C. The vents a are sealed until the pressure in a cup-shaped recess P rises to an extent sufficient to burst open the seals. A fuze F leads from tube A into tube B and an outer ring K bears against the end of the muzzle of the gun from which the rocket is discharged.
Patent GB-679092-A (GB)
Title: Improvements in and relating to operating gear for moving tractor-borne seed drills, tools and like implements into and out of operative position
IPC: A01C7/20
Filed: 1951-03-27
Abstract: 679,092. Agricultural implements. HUMBERSIDE AGRICULTURAL PRODUCTS CO., Ltd., LEVERETT, E. G., and WALSH, G. March 27, 1951, No. 7102/51. Class 6(i) Operating gear for moving tractor borne seed drills, tools, and like implements into and out of operative position comprises an operating lever 5 movable relative to a toothed quadrant 4 to which it may be locked by a spring loaded pawl 9, a link 18 pivoted to the lever 5 and a movement transmitting lever 12 to which is attached a plate 16 provided with a slot 17 formed with two recesses 17<SP>1</SP> 17<SP>2</SP>. The free end of the link 18 is provided with a member 19 which engages in the slots 17<SP>1</SP> 17<SP>2</SP>. The lever 12 is pivoted on a member 14 and is provided with a tube 20 in which slides a rod 21 provided with an abutment 23 and which is connected to the tools or implements. With the member 19 situated in the recess 17<SP>2</SP> as shown in Fig. 2, downward movement of the lever 5 will raise the rod 21 to lift the tools from the ground. The tools are lowered into working position by gravity causing the lever to be raised. Further upward movement of the lever causes the member 19 to engage in the recess 17, as shown in Fig. 3. When the lever is now lowered the tube 20 is lowered to compress a spring 22 and urge the tools into the ground. Specification 647,571 is referred to.
Patent GB-720204-A (GB)
Title: A laboratory apparatus for charging and discharging pipettes and the like
IPC: A61M5/34
Filed: 1952-03-19
Abstract: In a laboratory apparatus for charging and discharging pipettes and the like comprising a casing 2 provided with a suction device, e.g. bulb 1, means for attaching a pipette, and a valve for opening and closing communication between the pipette and the suction device, the valve comprises a body 11 and an operating member 13 through or around which there is a closable passage between the bulb and the outside air, and the means for attaching the pipette comprises a cylindrical resilient plug 4 in a cavity 26, the plug being formed with a cavity 27, 28 as shown so as to accommodate pipettes of different diameters.  The pipette is held by resiliently-lined jaws 18, 19 which rock on axis 17 and are operated by arm 15.  In operation the bulb 1 is first compressed, air being expelled through passages 16, 33, 8, 41, 14; the hole 14 is then covered, the bulb released, and the member 13 pushed in against the action of spring 9 to open valve 6 and allow communication through passage 5 with the pipette; when the pipette is filled to the mark, the member 13 is <PICT:0720204/III/1> released, closing valve 6 and allowing air to enter the bulb; to empty the pipette, member 13 is pushed in without covering hole 14.  Fine adjustment of the level in the pipette is carried out by means of screw 22 and bulb 21.  In a modification Fig. 2 (not shown) the valve 6 is replaced by a resilient ball which is compressed to open a passage between the bulb 1 and the pipette. The bulb may be replaced by a piston pump.
Patent GB-145132-A (GB)
Title: Improvements in or relating to electric switching means for preventing the theft or unauthorised use of motor vehicles
IPC: B60R25/04
Filed: 1919-03-21
Abstract: 145,132. Cowey, L. E. March 21, 1919. Switches, locking and unlocking; contacts; covers.-The wiring leading to the sparking-plugs of motor-vehicles is crossconnected or earthed by a switching device which, when turned into the operative position, is locked and can be released only by a key or by manipulation of a combination lock, the switching-device being connected to the ignition circuit without cutting or interrupting the ignition wiring. In the arrangement shown in Figs. 1 and 3, the ignition cables are passed through holes in an insulating-disk A secured to a sleeve D (which is screwed to a fixed part of the car) and pass out of the sleeve at the other end. Pointed pins C, insulated from the sleeve D, pass through the insulating disk and pierce the conductors; their heads, which are flush with the exterior of the sleeve, constitute contacts. A metal sleeve F contacting with the inner end of the fixed sleeve D is mounted to rotate upon the sleeve D through 180 degrees, but is otherwise insulated from the sleeve D by the insulating ring G secured to the rotatable sleeve F. Contacts in engagement with the outer sleeve (which by its engagement with the inner fixed sleeve connected to the car, is earthed) pass through the insulating- ring, and the outer sleeve may be turned so as to bring these contacts into engagement with the contact pins and, consequently, earth the ignition wires. In this position, the switch is locked by spring-operated plungers H which pass into depressions in the surface of the reduced end of the fixed sleeve. The plungers may be raised by means of a key having a serrated operating edge passed into the channel d<6>. The rotatable sleeve is held on the fixed sleeve by fixed plungers h<1> which engage channels in the fixed sleeve and, when unlocked by the key, the outer sleeve can be rotated through 180 degrees and withdrawn, the fixed pins passing along longitudinal channels. A cover f envelopes the plunger mechanism and is secured by pins f<1> which can be removed only from the inside. In the construction shown in Fig. 6, the sliding earth-connected contact member K, when in engagement, as shown, with the contact pins C is locked by permutation disks m<3> each of which may be separately rotated by the dials m<2> so that, when the correct combination is set, the contact member may be slid back from the contact pins. Projections on the sliding contact member cover the securing screws i of the casing when the switch is locked in the earthing or cross-connecting position. The insulating blocks D<1>, D<2> may be enlarged so that a cycle tube may be clamped between them. A fixed sleeve may surround the rotatable sleeve, and may be provided with recesses so that if the plungers are raised too far by an incorrect key the switch will not be unlocked.
Patent GB-295200-A (GB)
IPC: F23L1/02
Filed: 1928-03-09
Abstract: 295,200. Steinmuller, C., and Steinmuller, L., (trading as Steinmuller, L. & C.). Oct. 25, 1927, ,[Convention date]. Air supply, regulating. - In a travelling grate in which the space between the upper and lower runs is divided into compartments supplied with compressed air, each compartment b - - b4 is connected on one side with the pressure supply pipe c of the blower h and on the other side to the suction pipe d. Throttle valves e - - e<4> and f - - f<4> are provided at the ends of the compartments to control the pressure therein.
Patent GB-814778-A (GB)
Title: Fittings for connecting fluid passages
IPC: F16L41/00
Filed: 1957-03-06
Abstract: 814,778. Tube connections. FLICK-REEDY CORPORATION. March 6, 1957 [April 5, 1956], No. 7401/57. Class 99(1). A fitting 26, Fig. 3, for conducting fluid connects in fluid-tight relation a passage 27 in a housing 22 in alignment with a port 20 of a fluid operated device by shoulders 31 bearing against a seating 32 in the housing which is secured by screwing the fitting into the port 20. In Figs. 1 and 2 (not shown), a piston and cylinder device has a manifold assembly to which is secured a solenoid controlled valve and is provided with ports, one being connected directly through the manifold to the valve, as in Fig. 3. The fitting 26 has a screw-threaded shank portion 28 and a hollow head portion 30 which has a hexagonal recess to receive a wrench. When engaged, the fitting will hold the manifold plate 22 in position on a cylinder head 15 and provide a passageway 29 therethrough. An annular groove 33 may be provided in the head to receive an O-ring 34 which, with another O-ring 35, provides a fluid-tight seal between cylinder head 15 and manifold plate 22. In a modification, Fig. 4, a tube 36 having a screw-threaded end 36a engages a passage 38 in a housing 40 which has an inner chamber 41. The fitting 42 allows fluid connection from the tube 36 through the housing 40 to a port 18 and has a closed head portion 44 and a screw-threaded shank 45 which engages in the port as before. The shank 45 is provided with apertures 46 which open into a central channel 47 which extends axially through the shank. When the connection is made, the head 44 bears against the housing 40 which is secured to a cap end 14 of the cylinder with the port 38 facing in any direction. O-rings 48, 50 provide fluid tightness.
Patent GB-102922-A (GB)
Title: Improvements in Bunsen Gas Tubes or Burners.
Inventor: STEWART CHARLES
IPC: F23D14/64
Filed: 1916-05-25
Abstract: 102,922. Stewart, C., and Gibson, R. Dec. 22, 1915, [Convention date]. Atmospheric gas burners.-In a gas burner for cooking-stoves, gasfires, gas-furnaces, or waterheaters, or for illuminating purposes, a part of the gaseous mixture passing through the mixing- tube is conducted from one part of the mixing-tube back to a part in line with or in advance of the outlet of the gas nipple through passages, such as external or internal by-pass tubes, or an annular passage surrounding the mixing- tube. In one form, part of the gaseous mixture is conducted from the upper part of the mixing-tube through tubes 7 to an annular tube 16, and thence through tubes 17 to the inlet end of the mixing-tube. The internal air supply is regulated by a nut 4 on the gas nipple, while the nipple is regulated by a needle valve adjusted by a screw 19. The conical end of the mixing-tube is secured by distance-pieces 13 to a ring 3 on the nipple. In a second form, the sleeve forming the annular by-pass passage fits a short tube surrounding the gas nipple and provided with air inlets.
Patent GB-741744-A (GB)
Title: Improvements in or relating to resilient couplings
IPC: F16D3/66
Filed: 1953-03-18
Abstract: 741,744. Resilient couplings. HINDMARCH, T. Oct. 20, 1953 [March 18, 1953], No. 7463/53. Class 80(2) A resilient coupling consists of two axially arranged relatively rotational members, each of which is formed of one or more elements, the members being linked together for torque transmission by two or more resilient units. Each unit comprises two semi-cylindrical abutments 5, 6 separated by resilient means 9, 10 and connected by cylindrical guides 7, 8. The resilient units may be inserted or removed from the coupling without dismounting the rotational members. One rotational member may comprise discs 1, 2, fixed together and the other member consists of a disc 3 therebetween. Keep plates 11, 12, prevent axial displacement of the resilient units. The abutments 5, 6, have tapped holes 13, 14, for engagement with a tool for removal of the resilient unit after removal of a keep plate. The guides 7, 8 may be provided with hydraulic damping means. The various resilient units may be at the same or different radial distances from the centre of rotation. Specifications 594,904 and 607,940 are referred to.
Patent GB-217328-A (GB)
Title: Improvements relating to wooden tubular structures
IPC: G10K13/00
Filed: 1923-03-15
Abstract: 217,328. Green, J. March 15, 1923. Wood tubes.-Loudspeaker horns and talking-machine tone-arms are formed from thin wooden sheets or veneers, by slitting and bending until the edges of the slits abut or overlap, and then securing the edges together. The sectorshaped sheet d is slit from opposite sides to near the middle, and pieces are cut out; the blank is then bent until the edges of the slits abut or overlap, forming the bent portion b of the horn. The flared portion c is formed from a sectorshaped blank j, by cutting out gores k land bending until the edges abut or overlap. Tabs i may be formed on the blank. Many layers of blanks may be cemented together. Specification 217,289 is referred to.
Patent GB-836790-A (GB)
Title: High molecular weight copolymers of ª‡-olefins with diolefins and process for their preparation
IPC: C08F236/06
Filed: 1956-03-12
Abstract: A catalyst for copolymerizing diolefins with a -olefins is obtained by contacting a compound of maximum valency of a Group IVa, Va or VIa metal with an organo-metallic compound of a Group II or III metal. Catalyst components disclosed are aluminium triethyl and trihexyl, titanium tetrachloride and dibutoxy titanium dichloride and these are contacted, in the examples, in heptane or benzene as reaction medium. The catalyst may be formed in the presence of the a -olefin and in the presence or absence of the diolefin.  Reference has been directed by the Comptroller to Specifications 776,326 and 810,023.ALSO:Amorphous, linear copolymers are obtained by copolymerizing one or more diolefins with one or more a -olefins of formula CH2 = CHR (wherein R is alkyl, alicyclic, alkaryl or aralkyl), the polymerization being at a temperature lower than 120 DEG  C. and in the presence of a catalyst obtained by contacting a compound of maximum valency of a Group IVa, Va or VIa metal with an organo-metallic compound of a Group II or III metal.  Monomers specified include both conjugated and non-conjugated diolefins, such as butadiene, 1.3-pentadiene, isoprene, 1.5-hexadiene and 1.4-pentadiene; and, as mono-olefins, butene and pentene; and the diolefin.mono-olefin, C2 to C5 hydrocarbon fractions obtained by cracking crude oil or natural gas may also be used. Materials such as 2-butene, butane and paraffins may be present and the polymerization may be in bulk, in the case of liquid monomers, or otherwise in solution, e.g. in heptane or benzene. The catalyst is preferably prepared in the presence of monoolefin and absence of diolefin and components disclosed are aluminium triethyl and trihexyl, titanium tetrachloride and dibutoxy titanium dichloride.  In examples monomers and catalyst are added during the reaction, which is subsequently terminated and the products thereby purified, with methanol and methanolic hydrochloric acid, whereby oily polymers remain in solution and the solids are precipitated.  Variability in the copolymers may be eliminated by regulation of the mono-olefin/diolefin proportion during polymerization, or by the use of a continuous process. The copolymers obtained contain numerous unreacted double bonds and may be vulcanized (e.g. with zinc oxide, sulphur and benzthiazole disulphide) to give elastomers.  The solid copolymers may be fractionated, as described in the examples, by the use of acetone, ether and heptane.  Reference has been directed by the Comptroller to Specifications 776,326 and 810,023.
Patent GB-1024983-A (GB)
Title: Improvements in and relating to photoconductive development donor
IPC: G03G9/00
Filed: 1963-02-26
Abstract: 1,024,983. Electro-photographic processes. RANK-XEROX Ltd. Feb. 26, 1963 [March 2, 1962], No. 7638/63. Heading G2H. [Also in Division H1] in a method of developing a latent electrostatic image on a member 2 a donar member 5 having a photo-conductive insulating layer and loaded with electroscopic particles is brought into contiguous relation with the image bearing member with the particles between the members and the member 5 is then separated from the member 2, thereby forming a developed image on the member 2 conforming to the electrostatic charge. The member 2 which may be a layer of vitreous selenium is carried on a conductive drum 1. The outer surface of layer 2 is charged by an electrode 3 of a corona discharge and is then exposed by projector 27. Charged developer particles are picked up from the member 5 which is in the form of a photo-conductive insulating layer 24 overlying a conductive backing 25. The layer 24 is uniformly charged by a corotron and is then exposed to a light source 16 through a half tone screen 17,thereby breaking up the uniform charge into small areas of charge and no charge. The screen 17 may be moved at the same speed as the web 5 and for this purpose may be a driven endless belt. The web 5 passes loading station 18 where developer 20 is deposited on the web in accordance with the electrostatic charge pattern thereon. A strong light source 19 dissipates most of the electrostatic charge on the web while leaving the developer particles charged. Alternatively, the web may have a transparent backing and the layer 24 may be exposed through the backing. The particles are only held to the web by weak forces as the web passes over conductive roller 4 which are insufficient to counteract the attraction force of the electrostatic image on the layer 2 and the opposite charge induced in the web at the transfer point. Particles of developer are therefore transferred to the layer in the configuration of the electrostatic image thereon. In a modification, an endless donar web 5, Fig. 3 (not shown) is charged by a corotron 15, passes under a magnetic brush developer 21, and then under a strong light source 19.
Patent GB-671092-A (GB)
Title: Improvements in styrene-drying oil fatty acid interpolymers
IPC: C09D125/14
Filed: 1950-03-27
Abstract: Interpolymers are made by heating at temperatures between 120 DEG and 300 DEG  C. a drying oil fatty acid, e.g. linseed, soybean, hempseed, dehydrated castor, tung, perilla, sardine or menhaden oil fatty acids, with a mixture of 50 to 85 per cent of a monovinylaromatic compound of the formula <FORM:0671092/IV (a)/1> e.g. styrene, o- or p-methyl and ethyl styrenes, o-, p-dimethyl and diethyl styrenes, o-methyl-p-isopropyl and o-methyl-p-ethyl styrenes, and 50 to 15 per cent of an a -methylene alkyl aromatic compound of formula <FORM:0671092/IV (a)/2> e.g. a -methyl and a -ethyl styrenes, p-methyl-a -methyl styrene, o-p-dimethyl-a -methyl styrene, o-p-diethyl-a -methyl styrene, p-ethyl-a -methyl styrene, p-isopropyl- and o-p-diisopropyl-a -methyl styrenes.  In the formul , X and Y are hydrogen or alkyl radicals containing not more than three carbon atoms, and R is an alkyl radical containing not more than two carbon atoms.  Polymerization is preferably effected in the presence of a catalyst such as benzoyl, acetylbenzoyl peroxide, t.-butylperbenzoate or hydroperoxide, in a closed container or under an inert gas, e.g. nitrogen, helium or methane or under reflux, in the absence of an inert solvent.  In a preferred method the drying oil acid is heated to the polymerization temperature and the styrene mixture and catalyst are added over a period. Vacuum or steam distillation may be used to purify the products, which are soluble in toluene.  They may be heated with drying oils or esterified by mono- or polyhydric alcohols, e.g. butanol, glycerine or pentaerythritol. Alkyd resins may be prepared by reacting the polyhydric alcohol esters with phthalic acid or anhydride.