baber/WOPTO huggingface dataset:
Patent GB-517031-A (GB)
Abstract: 517,031. Chimney jackets. MUNTERS, C. G., and HEDMARK, M. July 14, 1938, No. 20942. Convention date, July 17, 1937. [Classes 25 and 137] [Also in Groups XIII and XI] The flue of a water-jacketed stove 10 is formed as a number of independent water-jacketed sections 13 passing through the building, the sections being connected to form part of a water circulating system for utilizing the heat of the flue gases. Each section comprises concentric pipes 14, 15 forming an annular water chamber, the inner pipe 15 of one section fitting over the corresponding pipe of the next section. The sections are connected by flexible copper pipes 17 to provide for displacement due to temperature changes. A pipe 20 is connected to the uppermost section to feed radiators 21 and a return pipe 22 is connected to the stove jacket. A valved pipe 27 connects the pipe 20 to the section 13a on the first floor. A pipe coil 30 may be arranged in the section 13a, through which water to be heated may be passed. An additional stove 33 may be connected to the same flue, either or both stoves being used. The lowest section 13 may be shut off when the stove 10 is not used. The Specification as open to inspection under Sect. 91, describes a modification in which the water-jacketed flue is surrounded by an air jacket 42, and the air thus warmed is led to the upper part of the rooms, while the lower part is connected by a return conduit to the lower part of the jacket 42. The jacket 42 may be divided longitudinally into sections, one for each room. Cold air may be added through conduit 53. The jacket 42 may be apertured near the ceiling and floor of a room to cause a circulation of warm air. A container 58 at the bottom of the jacket 42 may contain water to humidify the air. The steam generated may be emitted through nozzles to improve the air circulation. The wall of the jacket 14 may be corrugated. Additional fire-grates 60, 61, 62 may be provided, to reduce the volume when the air heater is used, and to adapt the stove for coal or coke, or for wood, respectively. This subject-matter does not appear in the Specification as accepted.
Patent GB-1254250-A (GB)
Title: Breast supporting frames
IPC: A41C3/12
Filed: 1970-10-30
Abstract: 1,254,250. Breast cup frame. S. & S. INDUSTRIES, Inc. 30 Oct., 1970 [3 April, 1970], No. 51746/70. Heading A3V. A breast cup frame 16 made from a U- shaped stiffening member 10 of resilient wire of rectangular cross-section, encased by a sleeve-like member 14 of ovoid cross section having its bulkous portion 18 projecting radially inward from the concave inner edge 22 of the stiffening member 10. The cross-sections of the members 10, 14 share a vertical axis of symmetry, but are asymmetrically placed about the horizontal axis, the stiffening member being closer to the tapered portion 20 of the sleeve-like member. The sleeve like member is preferably of polymeric material, is applied to the stiffening member by methods such as immersion, spraying, or moulding, and is shaped by heat treatment. At each end of each frame is a tip 12 of synthetic resin. The cross-sectional area of the bulkous portion 18 preferably decreases from the centre towards the ends of the frame.
Patent GB-1381330-A (GB)
Title: Centrifugal clutch
IPC: F16D43/18
Filed: 1972-11-10
Abstract: 1381330 Friction clutches DAIKIN SEISAKUSHO KK 10 Nov 1972 [10 Nov 1971] 51999/72 Heading F2C In a centrifugal friction clutch for a chain saw wherein segmental friction shoes 5 are held by leaf springs 7 in contact with shoe guides 4 fast with a driving hub 2 at low speed and are urged by centrifugal force into contact with a driven drum 1 above a predetermined speed, the engaging pressure is augmented by the shoes 5 wedging between the shoe guides 4 and the driven drum 1. The springs 7 pass round projections 6 on the driving hub and engage slots 5b in the shoes 5.
Patent GB-1158850-A (GB)
Title: Hydraulic System for Press Brakes or the like
IPC: B30B15/18
Filed: 1967-11-16
Abstract: 1,158,850. Press brakes. PACIFIC PRESS & SHEAR CORP. 16 Nov., 1967 [16 May, 1967], No. 52243/67. Heading B3E. [Also in Division B5] In an hydraulic press brake &c. comprising at least one hydraulic motor 3 or 5 including a cylinder 7 and piston 9 coupled to a ram 1, the upper and lower ends of the cylinder 7 being connected through flow-reversing means to pump means P for producing work and return strokes of the ram 1, means are provided for throttling discharge flow from the cylinder 7 during a return stroke whenever return movement of the piston 9 exceeds that producible by normal pump feed of liquid to the cylinder 7. As shown, two motors 3 have their pistons 9 connected to opposite ends of the ram 1 and two pumps P are provided. Each pump is connected to the upper side of one cylinder 7 and the lower side of the other cylinder. The means for throttling discharge flow from the cylinder 7 during a return stroke includes a valve assembly 51 shown in section in Fig. 3 and including an input 57 for connection to pump line 20 and a discharge 59 connected to a tank 15. A spring 65 normally biases a main valve 63 against its seat 61. A small opening 73 allows access for hydraulic fluid to a chamber 71 above the valve 63. An auxiliary passage 77 connects the input 57 to a chamber at the lower end of the valve 63. The pressure in the lower end of each cylinder 7 can be transmitted through a line 111 to the valve assembly 51 to act on a valve spool 103 which is biased to the left by a spring 105. If the pressure at 111 is sufficient to overcome the spring 105 a passage 97 in a valve sleeve 91 is opened and pressure in chamber 71 is relieved through a by-pass passageway 81 controlled by a solenoid-operated valve 79. Relief of pressure at 71 allows the excess pressure at 77 to overcome spring 67 and open valve 63 so that fluid can be discharged from the upper side of cylinder 7. If the return movement of one of the pistons 9 is too great, pressure at 111 will be insufficient to overcome the spring 105 and valve 103 will be moved to block passage 97.
Patent GB-1172289-A (GB)
Title: Web Treating Apparatus
Inventor: URBAS JOHN CHRISTOPHER
IPC: F26B21/00
Filed: 1967-11-17
Abstract: 1,172,289. Drying webs. MIDLAND-ROSS CORP. 17 Nov., 1967 [9 Dec., 1966], No. 52483/67. Heading F4G. [Also in Division D1] An apparatus for treating a web, e.g. setting of a liquid or pasty treatment, drying of a coating or an inking application or preheating a web to be treated, comprises an enclosure 20 having an entry 18 and exit 19 for passage of the web therethrough and a chamber 21 having a plurality of nozzles 23 arranged transversely of the web and positioned along the length of travel, each nozzle pointing towards a different position along the length of the path, each nozzle having a continuous slit facing the full width of the path to emit gas from the chamber 21 towards the path and also having an occluder with occluding and non-occluding portions alternately spaced along the length of its associated slit. The occluder preferably consists of a member having a plurality of spaced teeth 37 which depend into the nozzle blanking off some areas and leaving openings 36, 39 through which the gas may pass. The nozzles 23 depend from one surface of the plenum chamber 21. Up to half the outlet area of each nozzle may be blanked off by the spaced teeth of the occluder. The position of the occluder in each nozzle is adjustable to vary the nozzle slit area. By this means, using the same flow rate of gas as if the nozzle were left clear, there is caused an increase in turbulence of the gas on leaving the nozzle which results in an increase of heat exchange.
Patent GB-1407435-A (GB)
Title: Food product
IPC: A23K1/18
Filed: 1972-11-14
Abstract: 1407435 Cooked food product KAL KAN FOODS Inc 14 Nov 1972 [15 Nov 1971] 52589/72 Heading A2B A cooked food product, comprises a plurality of discrete pieces each having a core of nutritious materials, substantially covered by a coating comprising cooked egg solids of higher palatability than the core the coating being of sufficient thickness to mask the flavour and appearance of the core and to give the pieces the flavour and appearance of cooked egg. The coated pieces may be further coated with a quantity of particulate flavour-imparting bits of cooked meat, poultry, and/or fish, the coating inhibiting migration of core flavours therethrough and bonding the particulate bits to the core. The core may include proteinaceous and farinaceous substances, yeasts, amino acids, vitamins and other food supplements. The coated pieces may be cooked prior to coating with the meat or other bits. The core may be heated and the coating composition thermally set on application to the core. The product may be used as food for humans or animals.
Patent GB-1197957-A (GB)
Title: Extrudable Methyl Methacrylate Polymer Compositions
Inventor: BURGESS ROBIN HENRY
IPC: C08L33/12
Filed: 1967-11-20
Abstract: 1,197,957. Methyl methacrylate polymer compositions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 Nov., 1968 [20 Nov., 1967], No. 52709/67. Heading C3P. Polymeric compositions suitable for extrusion to produce articles having a pimpled matt finish comprise a mixture of two polymers A and B, in which polymer A is either (1) a polymer of methyl methaorylate with 0 to 15% of the weight of the polymer A of a monoethylenically unsaturated copolymerizable compound and has a reduced viscosity (as defined) of 0À4 to 0À55 or (2) a polymer of methyl methacrylate with 0 to 6% of the weight of the polymer A of a monoethylenically unsaturated copolymerizable compound and has a reduced viscosity of 0À60 to 1À2, and polymer B is either (1) a polymer of methyl methacrylate with 0 to 15% by weight of polymer B of a monoethylenically unsaturated copolymerizable compound and has a reduced viscosity at least three times the reduced viscosity of polymer A and of a value that is at least 1À6, or (2) a copolymer of methyl methacrylate with 0 to 15% by weight of polymer B of a mono-ethylenically unsaturated copolymerizable compound and 0À2 to 5À0% by weight of polymer B of a copolymerizable ethylenically unsaturated compound containing at least two CH 2  = C< groups per molecule, and in which the mixture of A and B contains from 2 to 40% by weight of polymer B by weight of the mixture. Monoethylenically unsaturated comonomers specified include alkyl acrylates and methacrylates, acrylic acid and methacrylic acid and their nitriles and amides, styrene and halo- and alkyl-derivatives thereof. Suitable comonomers having at least two CH 2 =C< groups include dimethacrylate esters, divinyl benzene, vinyl methacrylate, allyl methacrylate, allyl acrylate, methallyl acrylate, diallyl phthalate and diallyl maleate. Polymers A and B are both preferably used in bead form. Articles such as sheets, tubes and light fittings can be produced from the compositions.
Patent GB-1388348-A (GB)
Title: Treating polyester for shaping into articles
IPC: C08J11/04
Filed: 1973-11-14
Abstract: 1388348 Treating polyesters HORIZONS RESEARCH Inc 14 Nov 1973 52917/73 Heading C3R Clean polyethylene terephthalate is treated by maintaining small pieces thereof under a 0À001- 10 mm. vacuum, and/or under an inert gas, for 4-60 hours at 200-235 C. The gas, e.g. N 2 , Ar, or He, may be at reduced pressure, or it may be a stream of gas at atmospheric pressure. The pieces may be flakes 2-7 mil. thick, of major dimension, e.g. <1 in., and may be made from film 0À1-15 mil thick; a powder, e.g. of particle size as small as 0À001 in.; thin strands; or pellets having at least one dimension ## inch. The polyester may be scrap, e.g. X-ray film, or unused polyester; it may be extruded and pelletized before the heat treatment. Ethylene glycol may be added to the pieces before the heat-treatment. A liquid or solid additive, e.g. 0À05-4% wt. of talc, TiO 2 , Al 2 O 3 , 0À05-0À5% benzophenone, or 0À1-1% C black, may be added to the treated polyester. The polyester may be such that when moulded under heat and pressure before treatment, tensile strength and elongation are respectively <8000 p.s.i. and 0%, and when similarly moulded after treatment, the respective values are >10,000 p.s.i.and >100%. The material may be drawn at 160 C. to a filament which is heat-set at 120 C. or it can be extruded into rods, tubes, and sheets; or it can be injection or compression moulded, preferably immediately after heat treatment. The heat treatment may be performed in a furnace having a stirrer or in a rotating furnace.
Patent GB-1370459-A (GB)
Title: Web-handling apparatus
IPC: B65H23/06
Filed: 1971-11-15
Abstract: 1370459 Feeding webs FMC CORP 15 Nov 1971 [18 Feb 1971] 52921/71 Heading B8R The core shaft 24 of a wheeled web roll stand 22, from which a web W is advanced to a bagmaking machine 29, is provided with a pneumatically operated braking mechanism 80 associated with a control system (Fig. 9, not shown) arranged so that the braking effect can be applied for a period slightly exceeding the time required to stop rotation of the supply roll during interruption of demand for the web which is advanced intermittently through the machine 20 but which is drawn from the supply roll by means of continuously driven feed rollers 38. A dancer roll tensioning assembly 46 stores or releases web according to intermittent demand downstream of the machine 20 and also serves to control the speed of the rollers 38 in accordance with the web demand, an arm 146 of the assembly co-operating with a potentiometer 164 in the circuit of the roller drive motor M for this purpose. The web roll is also provided with a drag brake (40), Fig. 2 (not shown), which operates continuously during the unwinding operation.
Patent GB-1112710-A (GB)
Title: A breakdown detecting arrangement for transmission systems with noise
IPC: H04B3/46
Filed: 1966-11-25
Abstract: 1,112,710. Transmission monitoring. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 25 Nov., 1966 [30 Nov., 1965], No. 52922/66. Heading H4R. Pilot signal monitoring circuit is adapted to distinguish between a pilot signal and noise, and comprises, Fig. 1, a pilot detector channel 1 including a filter 4, passing a band of frequencies around the pilot frequency, an amplifier 5, a detector 6 and a low-pass, smoothing filter 7, whose pass band is greater than that of filter 4. The output from the detector channel 1 is applied via an attenuator 12 to a trigger circuit 13 which gives an alarm if the input signal level is below a predetermined threshold. In addition the output of the pilot detector 1 is used to control the setting of attenuator 12 via a pilot tone/noise discriminator 2 which comprises a band-pass filter 8, which blocks D.C. but passes low frequencies, an amplifier 9, detector 10, and low-pass filter 11. With a genuine pilot tone input the output of the pilot detector 1 will be a substantially constant level D.C. signal and therefore the output of the pilot/noise discriminator 2 will be very low. If the pilot tone fails intermediate amplifiers along the transmission path will increase their gains and therefore a high noise level will be fed to the pilot detector 1. The output of the detector 1 will therefore be a signal whose level fluctuates considerably with the noise level, these fluctuations will be detected in the pilot/noise discriminator 2 to cause a sufficient output that the attenuation of attenuator 12, which may be a transistor shunting the input of trigger 13, is increased to inhibit the operation of the trigger 13 to cause a pilot failure alarm to be given.
Patent GB-1394790-A (GB)
Title: Calenders
IPC: B29C43/00
Filed: 1973-11-14
Abstract: 1394790 Calendering plastic material HERMANN BERSTORFF MASCHINENBAU GmbH 14 Nov 1973 [8 Jan 1973] 52931/73 Addition to 1371085 Heading B5A A calender for plastics material includes supporting rolls 1, 2 of equal diameter and heated working rolls 3-5 therebetween; the diameters of the outer working rolls 3, 5 are smaller than that of the supporting rolls and the diameter of the central roll 4 is equal to or slightly smaller than that diameter.
Patent GB-1496140-A (GB)
Title: Protective helmet
IPC: A42B3/06
Filed: 1974-12-06
Abstract: 1496140 Helmet J G RHEE 6 Dec 1974 52936/74 Heading A3V A protective energy-absorbing helmet is made of resilient foam material covered with tough pliable material and comprises an integral chin strap and openings for various facial features. The helmet is moulded from plastics or rubber foam and is coated with plastics material or covered with leather or fabric. Various openings are made to accommodate features of the wearers head e.g. openings for eyes and nose 16, mouth 18, chin 19, ears 20. The openings may be variously modified by running several together namely 16 and 18 and possibly 19. A flap 48 assists donning and doffing. A transparent shield 60 is secured in front of the eyes by spacers 62. A shield 80 covers the top of the head, leaving ventilation openings 84, 86. Various other fixed or removable shields are described. A rigid nose guard may be provided.
Patent GB-1286313-A (GB)
Title: Thermoplastic film or tape joiner
Inventor: WHEELER SYLVIA ELIZABETH
IPC: G03D15/04
Filed: 1969-10-29
Abstract: 1286313 Seaming non-metallic sheet material SE WHEELER 29 Oct 1969 52960/69 Heading B5K [Also in Divisions G2-G3 and G4-G6] In a film or tape splicer, the ends to be joined are heated, and pressure applied by a member having a non-stick surface. As shown, the two film strips to be joined are held in clamps 1, with their ends abutting and supported by a block 2. Block 2 is made of hard asbestos, in which is embedded a heating element (9, 10, Fig. 2, not shown). On this is laid a thin insulating sheet 11 and a thin steel strip 12, the film ends actually resting on strip 12. Pressure is applied while the join is being heated by a block 5 of a heat-resistant non-stick plastics material such as P.T.F.E., mounted on an arm 4, which is swung down and clamped against the film ends by a screw 7. An additional strip of P.T.F.E. is mounted in front of block 5 and can be wound across, between splicing operations, on bobbins 6.
Patent GB-1094959-A (GB)
Title: Thrust mechanism for single-bucket excavators
Inventor: SOLOKHIN BORIS IVANOVICH
IPC: E02F3/30
Filed: 1965-12-14
Abstract: 1,094,959. Shovel excavators. IZHORSKY ZAVOD. Dec. 14, 1965, No. 52978/65. Heading E1F. [Also in Division F2] The bucket (4) of an excavator is coupled to a handle (3) to which force is imparted by a rope (2) which passes around a thrust drum (1<SP>1</SP>) and a spring-loaded friction-type damper (1) which is bolted to the handle (3), Fig. 1 not shown. The damper comprises a semiblock 1, which is encircled by the rope 2, is guided at the sides of a housing 10 for movement axially of the arm 3, and bears upon the pressure cones 5 of a pair of resilient damping members located in sleeves 9 accommodated in the housing 10. Each cone bears upon a split-ring friction element 6 which engages the inner tapered surface of the corresponding sleeve 9 and which is loaded by a precompressed spring 7 acting through a pressure washer 8. The springs 7 are each associated with a central bolt 14 for adjusting their release forces.
Patent GB-1126760-A (GB)
Title: A process for scrubbing gases
IPC: B01D47/06
Filed: 1966-11-28
Abstract: 1,126,760. Gas/liquid contact apparatus. DUIS BURGER KUPFERHUTTE. 28 Nov., 1966 U Dec., 1965]. No. 53106/66. Heading B1R. In a gas/liquid contact apparatus having a number of contact stages arranged in vertically spaced relationship within a column and each containing packing material, liquid flowing from one stage is collected in a vessel extending the full height of the subjacent stage and is delivered therefrom to the stage below the subjacent stage. Preferably the contact apparatus has an odd number of contact stages.
Patent GB-1224518-A (GB)
Title: Preparation of carboxylic esters
Inventor: STOUTHAMER BERNHARD
IPC: C07C67/00
Filed: 1968-11-11
Abstract: 1,224,518. Carboxylic acid esters. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 10 Nov., 1969 [11 Nov., 1968], No. 53317/68. Heading C2C. Carboxylic esters are obtained by reacting an ether of formula R 1 -O-R 2 , wherein R 1  and R 2  represent the same or different organic radicals, with CO in the presence of H 2 O- containing liquid HF. The liquid HF preferably contains 0À1 to 5% H 2 O. Substantially pure CO or mixtures thereof with inert gases may be used. The process may be carried out batchwise or continuously. In the latter case the process comprises the steps of (a) introducing into a reactor liquid HF, the ether, CO and H 2 O; (b) separating an ester phase and a substantially ester-free phase from liquid reactor effluent; and (c) recycling at least part of the substantially ester-free phase formed in step (b) to the reactor in step (a). A schematic apparatus suitable for carrying out the process is described. An example is given for the preparation of methyl trimethylacetate.
Patent GB-1280548-A (GB)
Title: Improved die casting machine
IPC: B22D17/22
Filed: 1969-10-31
Abstract: 1280548 Pressure die casting machines NATIONAL LEAD CO 31 Oct 1969 [12 Nov 1968] 53634/69 Heading B3F A cold-chamber pressure die casting machine has a base 11 with astationaryplaten 13 carrying a die part (core) 23, a movable platen 14 carrying a die part (core) 24 and means (including a closing cylinder 16 and toggle mechanism 15) to move the platen 14 along tie bars 17 towards and away from the stationary platen 13. A central member 25 of generally C-shaped cross-section (see Fig. 5) is mounted on the tie bars 17 between the movable and stationary platens 14, 13 and is moved by cylinders 72, 73. The C-shaped member 25 comprises an upper horizontal assembly 28, a lower horizontal assembly 26 and a vertical intermediate assembly 27, spanning between the upper and lower assemblies (see Fig. 5). Each assembly carries a die part numbered 41, 56, 66 respectively. The upper 41 and lower 56 die parts are retractable on cylinders 35, 51 (Fig. 1) respectively, the cylinders 35, 51 being mounted on the upper 28 and lower 26 assemblies. The lateral die part 66 (Fig. 5) carried on assembly 27 is provided with ejector pins 64 operated by an ejector cylinder 60 to remove the cast part 82 laterally of the tie bars 17. Fig. 3 shows how the upper 41 and lower 56 die parts are clamped by wedges 68 on the platens 13, 14 coacting with cammng surfaces 68 on the upper and lower die parts.
Patent GB-1374184-A (GB)
Title: Treatment of synthetic fibres
IPC: D01F6/18
Filed: 1972-11-21
Abstract: 1374184 Acrylonitrile fibres MONSANTOCO 21 Nov 1972 [22 Nov 1971] 53672/72 Heading B5B Freshly-spun, wet fibres containing a major proportion by weight of polymerized acrylonitrile is treated as follows: (i) Stretched to 3À5 to 7 times its spun length. (ii) Forwarded to a second stretch zone, taking at least 8 seconds over the forwarding. (iii) Post stretching the fibre at a temperature of 90 to 110 C. to a length of from 1À1 to 2À3 times the length after stretch (i). (iv) Shrinking the fibre to a length of 0À75 to 1À3 times its length after stretch (i), this being performed a temperature of from 90 to 125 C. (v) Drying the fibre. (vi) Cooling it. The fibre must be kept wet in stages (i) to (iv); to this end the stretching and shrinking may be performed in hot baths or in saturated steam.