baber/WOPTO huggingface dataset:
Patent GB-1424717-A (GB)
Title: Non-woven mats by melt blowing
IPC: D01D5/098
Filed: 1973-02-22
Abstract: 1424717 Polymer mats EXXON RESEARCH & ENG CO 22 Feb 1973 [22 Feb 1972 3 March 1972] 8742/73 Addition to 1295267 Headings B5A and B5B [Also in Division D1] A melt-blown non-woven mat is made by subjecting a fibre-forming thermoplastic polymer resin of initial intrinsic viscosity at least 1À4 (as determined in decalin at 135‹ C.) to degradation in the presence of a free radical source compound, prior to extrusion from nozzle orifices, until the resin has both a reduced intrinsic viscosity of from 0À6 to less than 1À4 and an apparent viscosity in the nozzle orifices of 50 to 300 poise, measured at a shear rate of from 700 to 3500 sec.<SP>-1</SP>, extruding the melt from heated nozzle orifices into a hot inert gas stream which attenuates the melt into fibres which form a fibre stream, and collecting the fibres on a movable receiver in the path of the fibre stream to form a non-woven mat. The resin may be a polyamide, polyester or polystyrene but is preferably a C 3  to C 8  polyolefin, e.g. polypropylene or mixture thereof and may be degraded for 1 to 10 minutes at 475‹ F. to 650‹ F., at least partially in an extruder feeding the resin into the nozzle, using an organic peroxide, thiyl compound or an organotin compound as the free radical source, to an apparent viscosity of 100 to 300 poise. Nozzle temperatures of 500‹ to 900‹ F. may be used, and the resin flow rate may be 0À1 to 5 gm. per minute per orifice. The gas flow rate may be 2À5 to 20 lb. per minute per square inch of outlet area, the minimum resin flow rate increasing in its aforesaid range as the gas flow rate is increased in its range or as the degraded resin has a decreased apparent viscosity in its range, or both. Alternatively a gas flow rate of 20 to 100 lb per minute per square inch of outlet area may be used, the maximum resin flow rate decreasing in its aforesaid range as the gas flow rate is decreased in its range or as the degraded resin has an increased apparent viscosity in its range or both. In apparatus as shown, the resin, which is thermally degraded either prior to entering the hopper 1 of extruder 2 or while therein, in the presence of a free radical source is heated in the extruder to above 550‹ C. and forced into the nozzle die head 3 by drive 4. A heating plate 5 assists the degradation of the resin, which is forced out of nozzle orifices 6 as molten strands which are attenuated into fibres 7 by the hot gas stream supplied through gas outlet slots 11 and 12, and the fibres are collected on drum 9 to form a continuous mat 10.
Patent GB-769737-A (GB)
Title: Improvements in structural members made from the class of materials known as plastics
IPC: E04C2/22
Filed: 1955-03-25
Abstract: 769,737. Structural members. RUSSELL REINFORCED PLASTICS CORPORATION. March 25, 1955 [March 30, 1954; Aug., 26, 1954; Oct. 12, 1954], No. 8781/55. Classes 20(3), 20(4) and 137  A structural member, e.g. a Venetian blind slat, a ventilating louvre, or a panel, comprises a laminate of plastic material bonded along longitudinally spaced portions thus forming a longitudinally extending pocket 9, Fig. 5, or pockets 19, Fig. 7 into which a reinforcement or reinforcements 10 is/are inserted. The reinforcement may project somewhat, as at 21, Fig. 9, to serve as a support for the member and a plate 22 shaped to the mouth of the pocket may be carried thereby. Fig. 11 shows a construction wherein the mouth of the pocket is closed by a channel member 25 crimped thereon. The reinforcement need not necessarily be in the form of a rod. The plastic material itself may be reinforced by fibres.
Patent GB-436276-A (GB)
Title: Improvements relating to means for securing detachable road vehicle wheels
IPC: B60B3/18
Filed: 1934-09-14
Abstract: 436,276. Vehicle wheels. RUDGEWHITWORTH, Ltd., and HACK, G. L., Crow Lane, Coventry. Sept. 14, 1934, No. 8847/35. Divided out of 436,258. [Class 144 (i)] [See also Group XXV] A nut a, threaded to engage the permanent hub e and flanged to engage over the coned end of the detachable hub f, is fitted with a ring h of bronze or other anti-friction material to avoid seizing or scoring of the metal of the hub f. The ring h is press-fitted or otherwise permanently secured in the flange against axial or rotary movement. Specification 436,258 is referred to.
Patent GB-105160-A (GB)
Title: Improvements in or relating to Lamps.
Inventor: RADMORE LEWIS
IPC: F21V37/00
Filed: 1916-06-23
Abstract: 105,160. Radmore, L., and Miller, W. P., (trading as Radmore & Co.). June 23, 1916. Lamps combined with match-boxes.-A portable lamp comprises a container a divided into two compartments, one 1 for oil, and the other 2 provided with a removable part f fitting over the end of a match-box as shown in Fig. 4. The tray of the box may be pushed partly out of its case by a sliding handle h or its equivalent provided with a plate i.
Patent GB-697287-A (GB)
Title: Improvements in collapsible boxes
IPC: B65D6/26
Filed: 1950-04-11
Abstract: 697,287. Joints for boxes. FESUS, G. April 10, 1951 [April 11. 1950], No. 8856/50. Class 20(ii) [Also in Group XVII] The panels 1 of a collapsable box are connected by bars 2 having cruciform slots 8 so as to enable the bars to slidably engage projections on the edges of the panels and retain them in position. The projections may be in the form of staples secured in the edges of the panels.
Patent GB-346135-A (GB)
IPC: G03B33/00
Filed: 1930-03-19
Abstract: 346,135. Kinematograph apparatus. SOC. FRANCAISE DES FILMS HERAULT and BELLIER, E. E., 20, Rue Orfila, Paris. March 19, 1930, No. 8859. Convention date, March 20, 1929. [Class 97 (i).] Apparatus for the elimination of colour flicker in three - colour kinematography comprises a plate divided into two equal portions, each of which has opaque zones alternating with transparent zones, the opaque zones of one part being identical in position, dimensions and shape with the transparent zones of the other part. As shown in the Figure, the device comprises four transparent zones, 1, 3, 2<1>, 4<1>, and four opaque zones, 2, 4, 11, 3<1>. The dimensions of the device correspond to those of a double gate that allows the simultaneous projection of two pictures. If the pictures of the film are tinted in the following order-red, green, blue, and the film is fed continuously, when any point of a red picture reaches the point a it is shown on the screen during its passage from a to b. The corresponding point of the preceding blue picture is simultaneously displaced from e to f but is hidden during this movement by the opaque portion 1<1> of the device. Whilst the same point of the red picture is displaced from b to c it is hidden by the opaque portion 2, while the corresponding portion of the blue picture is projected during its passage from f to g. The whole process is then repeated. Thus, in the height of one picture four successive projections are produced at any point on the screen, so that if the film is unwound at 30 pictures a second the frequency of projection on the screen is 120 pictures a second, a rate sufficient to eliminate colour flicker. The zones may be of any number or shape, and the device may be curved if required. When the device is used with intermittent feed projectors it may be in the form of a continuous film. The apparatus may be used for black projection, and may be combined with an interchangeable single gate.
Patent GB-780131-A (GB)
Title: Improvements in or relating to screw presses
IPC: B30B1/18
Filed: 1955-03-28
Abstract: 780,131. Screw presses. MASCHINENFABRIK HASENCLEVER AKT.-GES. March 28, 1955 [March 29, 1954], No. 9014/55. Class 87(2). The sliding head 8 of a screw press is attached to the screw 1 by a rod 14 which extends through an axial bore through the length of the screw. A pivot bearing 11 is screwed to a threaded attachment 13 on the bottom of the rod 14 and is retained in the sliding head by a threaded ring 15 screwed into a recess 9. A thrust plate 10 is placed between the bottom of the recess 9 and the pivot bearing 11. The top of the rod 14 has a threaded attachment 16 for a nut 17 which retains a flywheel disc 4. The screw threads 13, 16 enable the pre-stressing of the rod 14 to be varied.
Patent GB-370174-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/34
Filed: 1931-03-24
Abstract: 370,174. Thermionic valves. M-O VALVE CO., Ltd., Marconi House, Strand, London, EDEN, C. G., and SMITHELLS, C. J., of General Electric Co., Wembley, Middlesex. March 24, 1931, No. 9031. [Class 39 (i).] In electric discharge tubes having an anode forming part of the envelope, the internal electrodes form a single unit positioned relatively to the anode by electrode support wires splayed outwards to abut against the envelope. The envelope may comprise-an anode 1 and glass ends 3, 4 and may be evacuated through the end 4. A grid 6 and an indirectly-heated cathode 5 are formed into a unit by glass rods 7, 8 sealed about wires 9. At the upper end, one wire carries a getter and three wires are splayed out at 14. The unit is introduced through the end 3 and positioned by the parts 14 and the rod 8. The lower end of the envelope is then pinched about the leads 13. The anode 1 may have a diameter of three-eighths of an inch in a radio receiving valve. In a modification, the glass part 4 is omitted, the upper end of the anode being dome shaped. The parts 14 then bear against the copper anode and are insulated therefrom by glass beads. The Provisional Specification describes also modifications in which splayedout wires separate from the supports are sealed into the rod 7, in which the unit is positioned by a metal cap fitting within the anode and in which the rods 7, 8 are replaced by glass rings.
Patent GB-192639-A (GB)
Title: Process relating to the manufacture of artificial teeth
IPC: A61C13/08
Filed: 1922-03-29
Abstract: 192.639. White, A. E., (Rose, J. E.). March 29, 1922. Teeth, artificial. - Relates to teeth wherein a gold &c. crown is faced with porcelain &c., shaped and coloured to simulate a natural tooth. According to the invention a gold crown is first made for the prepared tooth 10 and the front wall of this crown is then cut out, as shown in perspective in Fig. 11 leaving an opening 11. The crown is placed on the tooth, and the opening 11 filled with warm plastic wax 12. Fig. 3. The porcelain facing 13, Fig. 4, is pressed into position and then removed so as to leave an impression of its rear face on the front face of the wax 12. The crown is then removed from the tooth, ploced in a mould, the wax melted out and gold run in to fill the space left by the wax. In this way a crown is prepared having the rear surface of its front wall accurately fitting the rear face of the porcelain front. The porcelain facing 13 is finally cemented on to the front face of the crown and the crown is cemented on to the tooth. Fig. 8 shows the complete crown with the porcelain facing 13 cemented on to the cast front wall 23 of the metal portion. The adhesion of the facing 13 may be increased by grooving the tooth to be crowned as shown at 24
Patent GB-1096856-A (GB)
Title: A process for the manufacture of epoxide mixtures from drying oils
IPC: C08G59/34
Filed: 1965-03-03
Abstract: Epoxide mixtures are prepared by condensing dicyclo-pentadiene with a drying oil at between 270 DEG  to 3000 DEG  for 5 to 60 minutes, and treating the product with an organic per-acid, such as per acetic acid.  Perbenzoic, per-adipic, and mono perphthalic acids may also be used or per-acids prepared in situ with hydrogen peroxide and an organic acid with an acid catalyst.  The epoxide mixtures may be cured in the presence of polycarboxylic acids or anhydrides and in the presence of catalysts. Examples describe the preparation and curing of a product of peracetic acid with a condensation product of linseed oil and dicyclopentadiene.ALSO:Epoxide mixtures are prepared by condensing a drying oil with dicyclopentadiene at between 270 DEG and 300 DEG  C. for 5 to 60 minutes and treating the product with an organic per-acid such as peracetic acid.  Perbenzoic, peradipic and monoperphthalic acids may also be used or per-acids prepared in situ with hydrogen peroxide and an organic acid with an acid catalyst. The epoxide mixtures may be cured in the presence of polycarboxylic acids or anhydrides and in the presence of catalysts.  Examples describe the reaction of peracetic acid with a condensation product of linseed oil and dicyclopentadiene and the curing of the products.
Patent GB-1413288-A (GB)
Title: Heat-sensitive recording materials
IPC: C07D471/04
Filed: 1972-02-28
Abstract: 1413288 Quinoline derivatives AGFAGEVAERT 16 Feb 1973 [28 Feb 1972] 9141/72 Heading C2C [Also in Division G2] 1,2 - Dihydro - 2,2,4 - trialkylquinolines of formula wherein R is a C 1 -C 4  alkyl group and Z completes an aromatic or an aromatic heterocyclic ring or ring system which may or may not be substituted are prepared by condensing the appropriate aromatic or heterocyclic compound containing a primary amino group with 2 moles of an alkyl methyl ketone in the presence of I, Br, sulphuric acid, toluenesulphonic acid or benzene sulphonic acid as catalyst. Specified reactants are 2-amino fluorene, 2-amino-diphenylene oxide, 9-ethyl-2-amino-carbazole, 1- ethyl - 3 - phenyl - 2 - amino - quinolin - 2 - one, p(betahydroxyethoxylaniline, p - toluidine, 3,4-dimethylaniline and alphanaphthylamine with acetone.
Patent GB-609914-A (GB)
Title: Improvements in or relating to carbon paper
IPC: B41M5/10
Filed: 1946-03-25
Abstract: 609,914. Coated fabrics. ELLAMS DUPLICATOR CO., Ltd., and LEICESTER, D. C. March 25, 1946, No. 9149. [Class 140] [Also in Group XVI] A carbon paper has on one side a coating of transferable composition and on the reverse side a flexible coating composition comprising zein. The zein compound is rendered flexible by softening agents and may incorporate colouring matter and/or metallic powders. The compound in the form of a solution in methylated spirits is mixed in a ball or roller mill and applied by means of coating rollers either before or after the application of the transferable composition. The paper may not be completely covered by the composition but the coating may be in the form of a frame, lines of varying thickness or in a block design. In one example, 10 lbs. of zein are dissolved in 40 lbs. of industrial methylated spirits; 7.5 lbs. of triethanolamine are added and incorporated and then a further 25 lbs. of methylated spirits are added till the solution is of a suitable consistency. A pigment or metallic powder may be added. In another example, 1 lb. of zein is dissolved in 10.5 lbs. of methylated spirit; 11b. of triacetin and ¢-lb. of butyl stearate are incorporated; 7 lbs. of Red Lake and 3 lbs. of Hansa Yellow are added and the whole ground in a ball mill.
Patent GB-595470-A (GB)
Title: Improvements in tube drawing plants
IPC: B21C1/32
Filed: 1945-04-12
Abstract: 595,470. Drawing. CHOUSTOFF, E. April 12, 1945, Nos. 9192, 9193 and 9194. Convention dates, April 18, 1944, March 20, 1945, and March 21, 1945. [Class 83 (iv)] In hydraulically actuated tube drawing apparatus tubes are fed laterally from a stack 12 to rollers 17 and by rollers C to mandrels 4 on a carrier B rotated to align them with a draw bench D. Oscillation of a hinged bottom of the stack 12 by a fluid cylinder 42, Fig. 4, (not shown), delivers a tube to a carrier intermittently rotated by a fluid cylinder 41 to deliver a tube to rollers 17. The end of the tube is engaged between rolls, Fig. 7 (not shown), rotated by an electromotor and a roller moved laterally by a fluid cylinder 22 and fed through guide rollers to mandrels 4 secured to a plate 2a of carrier B. Intermittent rotation of the carrier effected by a rack actuated by a fluid cylinder 46, Fig. 3 (not shown), aligns the mandrel with the draw bench D and the tube is threaded in the die by axial movement of the mandrels by fluid cylinders 10. The clamp jaws and the chain hook are actuated in succession by fluid pressure mechanism, Fig. 20. Wedge jaws 203 on the draw carriage are closed by a cylinder 207 energized from a pipe 210. Pressure to a fluid cylinder 216 actuating the chain hook is cut-off by a valve 214 until pressure leaks through a valve 212 to displace the valve. Pressure to the pipe 210 is controlled by the draw carriage. A motor 27 drives a pump 28 supplying a tank 37. Excess pressure operates a valve 33 exhausting to a tank 29. The fluid cylinders are controlled by valves 26 actuated by cam on a drum 25. The drum contact 25a closes circuit of a motor M for returning the draw carriage and other contacts actuate the appropriate valves in succession. In a modification two tubes are fed simultaneously to the carrier. Lubricating dies and work.-The carrier 13, Fig. 14 (not shown), carries radial pumps, each with a screwed spindle engaging a nut operated by ratchet from a fixed abutment. On each rotation of the carrier the pump ejects oil to the mandrel head.
Patent GB-208967-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D9/00
Filed: 1923-04-04
Abstract: 208,967. Hariveau, P. April 4, 1923. Addition to 156,470. Starting, facilitating; centrifugal ejector pumps; delivering air and water under pressure into closed reservoir.-Relates to duplex centrifugal pumps in which one part is used for priming the other part and consists in a modification of the pump described in the parent Specification. One of the inlets of that pump is connected to a water reservoir 17 and the outlet connects both to the delivery pipe 26 and to the reservoir. When the pump is started, the left-hand side of the rotor, Fig. 2, pumps water from and delivers it back to the reservoir and in so doing, by injector action of the water draws air from the suction pipe 14 until the pump is fully primed. The reservoir fills with water as the water rises in the delivery pipe and a float 22 bv means of a lever 20 lifts a valve 19 into position to close the inlet pipe 10. In the normal working of the right-hand side of the rotor as a water pump, the left-hand side may be used as an ejector pump, either to evacuate some vessel connected' to the pipe 10 or to deliver compressed air with the water into a closed reservoir so that the water mav be delivered therefrom under pressure.
Patent GB-540757-A (GB)
Title: Improvements in or relating to respirators
IPC: A62B18/08
Filed: 1940-01-15
Abstract: 540,757. Respirators. FOUNTAIN, Ltd., G. R., SNELL, A. E. C., and HOULGATE, H. J. Jan. 15, 1940, No. 9237/41. Divided out of 539,933. [Class 81 (ii)] A respirator is fitted with an acoustic diaphragm 65 which is combined with the outlet valve 17, 66 of the respirator and is associated with an acoustic duct 30 leading from a position directly in front of the user's mouth. The air and sound from the user's mouth have access to the diaphragm and valve through passages 40, 44 in throat members 33, 43 which fit against a casting 12 and are secured by a screw 20 which holds in place a cover plate 68. Specifications 445,988 and 464,458 are referred to.
Patent GB-705012-A (GB)
Title: Improvements in or relating to means for holding eating utensils
IPC: A47J47/16
Filed: 1952-04-10
Abstract: 705,012. Racks; display stands. SUFFLING, R., and GAPPER, W. E. April 2, 1953 [April 10, 1952; May 7, 1952; Aug. 21, 1952], Nos. 9249/52, 11538/52 and 21019/52. Classes 52(3) and 52(5) [Also in Group VI] A rack for holding cutlery ready for use in a canteen comprises a rectangular framework 10 provided with utensil supporting strips 17 of zig-zag formation such that the handles are conveniently placed to be gripped. The frame 10 has hooks 12 by which it is slidably supported on rails 13. Alternatively, the rails may be supported on a rotatably mounted base 22 and held in position by flanges 25, 26. The base 22 is arranged over a heating element 28 when the device serves as a drying rack.
Patent GB-549862-A (GB)
Title: An improvement in or relating to tool-holders for metal-cutting machines
IPC: B23B27/16
Filed: 1941-07-24
Abstract: 549,862. Tool-holders. TAYLOR & JONES, Ltd., TAYLOR, E. S., and CULVERT ENGINEERS, Ltd. July 24, 1941, No. 9382. [Class 83 (iii)] In a tool holder consisting of two parts connected by rivets b, bl and normally separated by springs c, c<SP>1</SP> which are flattened when the holder is gripped in a tool post, the tool receiving recess d is adapted for the clamping tools of different sections and sizes by the provision of a number of filler or angle pieces such as those shown in Fig. 3. Other filling pieces may be used to accommodate round or hexagon tools. For gripping short tools a clamp or two-part collar may be fitted around the front part of the holder.
Patent GB-1198761-A (GB)
Title: Container for Zig-Zag Tape
Inventor: JURA STANISLAV
IPC: G06K13/26
Filed: 1968-02-27
Abstract: 1,198,761. Containers for record tape. VYZKUMNY USTAV MATEMATICKYCH STROJU. 27 Feb., 1968 [27 Feb., 1967], No. 9412/68. Heading G5R. Tape 12, folded concertina-wise, is stored in a container comprising a guiding chamber I, a tapering inlet chamber II, and a storage chamber III, the chambers having front and rear panels in common. The chambers II, III may constitute a magazine loadable to apparatus incorporating the guide chamber I. As shown, an endless magnetic or punched tape 12, e.g. for programmed control of machinery, is loaded to the apparatus 11 in a container 1 defining the three chambers and carrying rollers 9 on the rear panel. The floor 7 is movable against a restoring spring (18, Figs. 5, 6, not shown) to maintain the tape pile 12<SP>1</SP> at a substantially constant level, an indicator being attached to the floor 7 for movement over a scale (31) graduated according to the length of tape in the pile. Air may be directed through the inlet chamber panels via nozzles (20, 21, Fig. 7, not shown) to guide the tape and ensure correct folding. The front panel 8 is movable e.g. by sliding or hinges to allow loading of the tape. Rollers (13) may be attached to the floor to reduce friction (Fig. 4, not shown). Modifications.-Containers including the chambers II, III may be attached to a common rear panel for attachment to transducing apparatus, the containers storing between them a single endless tape (Fig. 3, not shown), or an end-to-end tape, the containers being reversible. The guide shoot 4 from the apparatus 11 may be hinged (141, Fig. 8, not shown) to permit loading of the tape, the front panel of the container being in two parts to assist handling. Single or double containers for end-to-end or endless tapes respectively, may be arranged with their axes approximately colinear (Figs. 11-13, not shown) and one side panel (3<SP>1</SP>) may be movable with the floor (7) on rollers (23). A warning device may indicate that the tape is folding incorrectly.
Patent GB-566897-A (GB)
Title: Improvements in or relating to screw fans
IPC: F04D29/36
Filed: 1943-06-11
Abstract: 566,897. Screw fans. UNITED AIR. CRAFT CORPORATION. June 11, 1943, No. 9457. Convention date, Aug. 7, 1942. [Class 110 (i)] The fan hub 14 has a channel-shaped rim 25, 26, in which is fixed a series of channel sectors 50 and a rubber &c. cushion 54 fixed by a series of channel sectors 52 on the inner rim of a two-part ring 34, 36, bolted to the hub and carrying the blades 30 by means of shanks 40 and flanges 42. By releasing the bolts holding 34, 36 together, the blades may be angularly adjusted.
Patent GB-559811-A (GB)
Title: Improvements in or relating to a printing plate and a method of manufacturing the same
Filed: 1942-08-15
Abstract: 559,811. Printing-plates. FILLMORE, S. W. Aug. 15, 1942, No. 9521/43. Divided out of 558,186. [Class 100 (ii)] A composite printing plate comprises a printing layer of plastic material such as thermo-setting synthetic resin 1 and a metal reinforcing plate 2 formed with flared apertures 4, or undercut grooves, recesses, pores &c. to key the plastic material thereto.