baber/WOPTO huggingface dataset:
Patent GB-838545-A (GB)
Title: Improvements in or relating to heat exchangers
IPC: F28F9/02
Filed: 1957-03-11
Abstract: 838,545. Tubular heat exchangers. USINES CHAUSSON S.A., DES. March 11, 1957 [March 21, 1956], No. 7950/57. Class 64(3) In a heat exchanger in which air or other gas is heated in flowing through a bank of tubes by means of exhaust or other hot gas which flows through a casing surrounding the tubes, the tubes extend between tube plates made of light metal alloy and at least on their surface located within the casing are covered by a thin screen of heat and corrosion resisting material (e.g. stainless steel). In the form shown air flowing through the tubes 3 is heated by exhaust gases flowing transversely over the tubes. Side walls 4 extend between the tube plates 1, 2 to define the boundary of the gas flow path. The tubes of group 5 adjacent the heating gas inlet are made of stainless steel or of other metal covered with refractory. The tubes of group 6 are made of aluminium alloy. The tube plates 1, 2 and the side walls 4 are made of aluminium alloy protected on the gas side by a thin screen of stainless steel or other suitable material which may be directly attached thereto (Fig. 2, not shown), or spaced therefrom by an air gap through which cooling air may be circulated. Fig. 5 shows such an arrangement, in which air spaces 12, 12a are formed between the tube plates and protective screens 9. Holes 14 in each tube plate and additional tubes 15, 16 communicating at one end with one or other of the air spaces 12, 12a are provided as shown such that air streams f3, f4 tapped from the main air stream are caused to flow through the spaces 12, 12a, these streams passing ultimately into the stream of heated air leaving the tubes 3. The tubes 3 may be secured in one of the tube plates and slidable in holes in the other tube plate to provide for relative expansion in the assembly.
Patent GB-1075565-A (GB)
Title: Apparatus for making polymeric articles and polymeric articles made using such apparatus
IPC: B29C48/305
Filed: 1966-02-23
Abstract: 1,075,565. Cooling extruded articles. FMC CORPORATION. Feb. 23, 1966 [May 27, 1965], No. 8015/66. Heading B5A. Polymeric extrudate 16 issuing from a substantially rectangular die orifice 12 passes between quenching and sizing rolls 14 into a water bath 18 to contact a stationary guide 24. A non-rotatable pipe 42 is resiliently urged against extrudate 16 by a spring 46 to provide a drag on the surface of extrudate 16 which in combination with the drag effect of guide 24 facilitates the production of an article of uniform thickness. The pipe 42 also ensures conact with guide 24 particularly should the water in tank 18 be agitated. Further contact with guide 24 and thereby a controlled change in direction of the extrudate from vertical to substantially horizontal is effected by take-off rolls 22. Guide 24 and a plate 28 form a chamber 30 through which water is circulated via a conduit 34 and an opening 38 in tank 18. Pipe 42 is also water cooled via conduits 43 (only one shown). In a modification, plate 28 is dispensed with and guide 24 is perforated. Sheeting may be produced and in particular high strength strapping, e.g. of polypropylene, the initial extrudate being relatively thick, i.e. the smaller dimension of orifice 12 being greater than 1À5 mm. After the above mentioned cooling process the product may be molecularly orientated by stretching, e.g. up to eight times the extruded length.
Patent GB-737204-A (GB)
Title: Improvements in or relating to paraffin wax compositions
IPC: C09D191/08
Filed: 1953-03-24
Abstract: A wax composition comprises a sweated wax with a boiling range spread of 200-300 DEG  F. and a distilled wax with a boiling range spread of 30-100 DEG  F., at 10 mm. mercury absolute pressure.  In the drawing, a waxy crude oil is distilled in zone 1 and a waxy distillate fraction removed by line 5, mixed with solvent, for example methylethyl ketone and toluene, and passed to chilling zone 7.  The mixture is filtered in zone 8; oil is removed by line 9 and slack wax and solvent are passed via line 11 to distillation zone 12, in which the solvent is removed.  The slack wax is further refined in zones 15 and 36 by a sweating or solvent deoiling operation; part of this refined wax is then passed by line 39 to distillation zone 41 to <PICT:0737204/III/1> segregate a narrow cut refined wax fraction, which is blended with the wide boiling range wax from zone 36.  The wide boiling range wax may also be further refined by treatment with sulphuric acid, fuller's earth or bauxite or by hydrogenation.
Patent GB-567343-A (GB)
Title: An improved torque spanner embodying an automatic release
IPC: B25B23/142
Filed: 1943-05-22
Abstract: 567,343. Wrenches. CUMMINS, L. T. May 22, 1943, No. 8182. [Class 61 (iii)] [Also in Group XIX] A torque overload release wrench comprises two coaxial tubular members 1, 6 provided at their outer ends respectively with a cross-handle 2 and box spanner 7 and formed at their meeting ends with coacting dogs 4, 5, these meeting ends being rotatable one on the other by means of an inner sleeve 8 secured to the lower sleeve 6 by means of a screw 9. The dogs 4, 5 are normally held in engagement by a tension spring 10 secured to a holder 11, but become disengaged on overload, the disengagement pressure being adjustable by means of a nut 13 and screw 12 carried by the spring holder 11 which has a pointer movable over a scale to facilitate adjustment. Specification 127,860, [Class 61 (iii)], is referred to.
Patent GB-730954-A (GB)
Title: Improvements in or relating to fibrous pads for upholstered and like articles
Inventor: MERRIMAN PETER
IPC: D04H1/498
Filed: 1951-04-10
Abstract: 730,954. Wadding. XETAL PRODUCTS, Ltd. March 4, 1952 [April 10, 1951], No. 8253/51. Class 142(4). [Also in Group VIII] A pad for upholstered articles comprises a layer of adhesively bonded resilient fibres, such as horsehair interlocked with polyvinyl chloride composition, united by needling to a layer of softer fibres such as, cellulose acetate fibres. The uniting of the two layers may be assisted by means of an adhesive. Specification 706,413, [Group VIII], is referred to.
Patent GB-693550-A (GB)
Title: Improvements in or relating to looms and method of weaving
IPC: D03D47/20
Filed: 1949-08-05
Abstract: 693,550. Shuttleless loom weft inserters. DRAPER CORPORATION. Aug. 5, 1949 [Jan, 19, 1949], No. 8382/52. Divided out of 693,485. Class 142(ii) Weft inserters of hollow rectangular cross-section have their bottoms flush with their operating tapes and one is smaller than the other so that they can interengage at the middle of the shed to transfer a loop of weft from either inserter to the other as described in Specification 693,485, one length of the loop lying under the inserter and the other along the top. Both inserters have a notch 63, 67 in the top to locate a vertical stretch of weft which snaps past a barb 66, 72 in the other inserter; the barb projects into a groove in a guide 65, 71 which, together with a hook 64, 70, defines an eye through which the free limb of the weft runs as the inserters separate to straighten out the loop. The smaller inserter has its eye 70-72 cut in its top so as to pass under the top 62 of the larger inserter but over a bar 73 in which the eye 64, 65 is cut.
Patent GB-230646-A (GB)
Title: Improvements in push handles of baby carriages
IPC: B62B9/20
Filed: 1924-04-03
Abstract: 230,646. Bowen, W., and Bowen, W. A. April 3, 1924. Push-bars.-A handle for a baby carriage, particularly of the transversely collapsable kind described in Specification 215,145, comprises two side-bars which may be folded independently into, alongside or towards the body and are rigidly connected at their outer ends by a transverse bar detachably connected to one side bar and adapted to fold on the other side-bar. Each side-bar a is pivotally mounted in a bracket d secured, as shown, to the inside of the body and held in operative position by the engagemnet of a sliding spring-controlled bolt k with a recess d<4> in the bracket d which is also formed with a stop d<5> to engage the underside of the bar a. The bolt k is housed in a casing k<2> carried by brackets k<3> integral with the bar a, and is operated by a knob k<5> projecting through a slot in the casing. The outer ends of the side-bars a are provided with screwed studs j, Fig. 4, engaging eyes i<2> on the transverse bar i, one of the eyes i being slotted to permit disengagement of the bar i from one of the bars a after slackening the nut j<2>.
Patent GB-309706-A (GB)
Title: Improvements relating to coinfreed mechanism
IPC: G07F1/04
Filed: 1928-03-20
Abstract: 309,706. Pearse, W., and Morris, E. E. March 20, 1928. Coins &c., separating and sorting.-In a coinfreed machine, means for separating into single file a plurality of coins b, Fig. 1, inserted at a time, comprises two superposed inversely inclined shoots c, d, the floor of the upper shoot c being apertured at f<1> - - f<4>, Fig. 3, at progressively decreasing lateral distances from the side wall e, against which the coins on edge lean. The coins inserted together drop through the apertures at different situations on to the shoot d and pass to the usual sorting and testing devices in single file.
Patent GB-552558-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H02K57/00
Filed: 1941-07-09
Abstract: 552,558. Motors. HITCHCOCK, S. I. July 9, 1941, No. 8665. [Class 35] A permanent magnet ot a permanent magnet motor has a "flux controller" consisting of a soft iron sleeve surrounding the pole pieces 1 of the magnet, or a plurality of soft iron bars 10 disposed on opposite sides of the pole pieces, and means, such as a cam 6 acting on spring loaded plungers 12, for periodically moving the flux controller lengthwise of the pole pieces into a position in which it lies flush with the end faces thereof, for the purpose of diverting the whole or a substantial proportion of the magnetic flux which would normally pass between the moving and stationary pole pieces when oppositely arranged, into the soft iron ports of the controller. In the form shown a cylindrical permanent magnet 3 has a four pole laminated pole piece 1 at each end, the whole rotating within a stator 4 having pole pieces 5. The angular position of cams 6, one at each end, are adjusted simultaneously by lever 7 and link 8. While a pole piece 1 is approaching or opposite a pole piece 5 the bars 10 are retracted, as shown in Fig. 3. As soon as the pole pieces are about to separate, the bars 10 rise flush with the surface of pole piece 1, as shown in Fig. 5, and weaken the attraction between the poles. Sufficient momentum is thus left to the rotor to enable it to get into the field of attraction of the next stator pole. If permanent magnets are employed in both stator and rotor, there will be two sets of flux controllers. Such motors will not be selfstarting or capable of perpetual motion. If either the stator or the rotor is an electromagnet, the motor can be started and maintained by intermittently energizing the windings ; the other member will then be a permanent magnet provided with a flux controller. The controllers may be moved electrically by windings energized separately or by a motor winding. To facilitate movement, a ball race or copper sheaths may be interposed between the flux controllers and the surfaces of the pole pieces. The Provisional Specification describes also an application to lifting magnets, the flux controller being movable by a Bowden wire or trip mechanism. The controller may be an insert in one of the poles.
Patent GB-375294-A (GB)
Title: Improvements relating to shock absorbers for motor vehicles
IPC: F16F9/14
Filed: 1931-03-21
Abstract: 375,294. Hydraulic shock-absorbers. LUCAS, Ltd., J. and PITT, H. W., Great King Street, Birmingham. March 21, 1931, No. 8716. [Class 108 (iii).] In a fluid-controlled shock-absorber a driving connection is provided between a spindle b and a separately formed vane oscillatable in a cylindrical casing and comprising a pair of metal strips e, Figs. 5 and 9, so arranged that each member makes contact at one or both ends with the inner peripheral surface of the shock-absorber casing a. The pair of members forming the vane may be constituted by a single strip e, Figs. 2 and 11, bent so that its ends are substantially adjacent and make contact with the casing a. One or two partitions may be similarly formed of a pair of metal strips g, Figs. 2 and 5, or of a single metal strip bent to S-shape, or bent so as to form a hollow body, or the partition g, Figs. 9 and 11, may be formed from a solid block. The driving connection may be formed by a key d, or by a bent end of the spindle, Fig. 11, and the outer end of the spindle may be bent at right-angles so as to form an operating-lever. The ends f of the vane may be turned inwards or cut off. A casing e surrounding the casing a provides a reservoir from which fluid supply to the casing a is made up automatically through non- return valves m. Flow of fluid part or through the partition is controlled by a screw j which regulates a groove or passage k.
Patent GB-374972-A (GB)
Title: Improvements in or relating to tins, canisters and like metal containers
IPC: B65D25/20
Filed: 1931-03-23
Abstract: 374,972. Tins, canisters, &c. ROBINSON, F. G., Canister Works, Southcoates Lane, Hull. March 23, 1931, No. 8818. [Classes 66 and 125 (iii).] A device for indicating the colour or affording other information as to the contents of a tin, canister, or like metal container comprises a part 4 provided with a tag 4<x> which is permanently secured by riveting, soldering, &c. to the lid 3. The device may be secured to the outwardly-projecting flange of the lid or to an extension or lip 3<x> thereof, as shown, and the tag may be extended inwardly and bent to lie in the recess of the lid.
Patent GB-1495411-A (GB)
Title: Camera
IPC: G03B17/04
Filed: 1975-03-04
Abstract: 1495411 Retractable camera assemblies W HAKING INDUSTRIES (MECHANICS & OPTICS) Ltd 4 March 1975 [10 Jan 1975]  8920/75 Heading G2A A camera has a view-finder section which can slide on the main camera housing between a retracted and an extended operative position so that the view-finder eye-piece is covered by a rear wall of the camera housing when in the retracted position, the camera having a back wall which can be opened so as to allow insertion of a film cartridge. As shown, the view-finder section 2b can slide with respect to the main camera housing 2a from the retracted position of Fig. 1 to the extended position of Fig. 2, the parts 2a and 2b being connected to the internal sub-assemblies by screws 11. The viewfinder sub-assembly 6 has integral therewith a slide bar 26, and the camera sub-assembly 4 has apertured guides 25 in which the bar slides. The viewfinder section 2b is retained in either the extended or retracted position by detent means 34, 36, 38. The camera has an objective lens 19 in a recessed portion 17 in a front plate 24 forming part of subassembly 4. The sliding section 2b has a recessed portion 14 which covers and protects the lens in the closed position, and uncovers it in the open position. The shutter release button 13 is also exposed in the open position, but covered and protected in the closed position. The rear wall of the camera is formed by a door 8e which can hinge open (dotdash line position in Fig. 1) to enable a cartridge to be inserted. The view-finder section has a front eye-piece lens 21 and a rear lens 23, with a cut-out portion 15 in alignment therewith. In the retracted position the front lens 21 passes behind plate 24 and is thus protected from dust, &c, while the rear lens 23 is similarly protected by the cover door 8e. The slide bar 26 is fixed to an actuator plate 28a having a rack portion 28a', the teeth of which engage with a gear 30. As the view-finder section 2b is moved from the closed to the open position, gear 30 is rotated anti-clockwise, and this movement is transmitted to a film winding means via a further gear system 31, 32, 33.
Patent GB-231884-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B23/06
Filed: 1925-04-03
Abstract: 231,884. Acro Akt.-Ges. April 4, 24, [Convention date]. Cylinders receiving liquid fuel.-A combustion chamber b formed in a piston a is arranged so that at the inner end of the piston stroke the neck of the combustion chamber, which is formed with a sharp edge, is nearly closed by a projection c on the cylinder head. A fuel injector d is located in the projection c, and at the end of the compression stroke a substantial clearance remains between the piston face and the cylinder head.
Patent GB-564081-A (GB)
Title: Improvements in or relating to magnesium base alloys
IPC: C22F1/06
Filed: 1943-06-04
Abstract: 564,081. Magnesium alloys. MAGNESIUM ELEKTRON, Ltd., FOX, F. A., and WILKINSON, R. G. June 4, 1943, No. 8968. [Class 82 (i)] [Also in Group XXII] Extrusion products of magnesium base alloys, containing zirconium but not elements capable of combining therewith to form highmelting point compounds, are made by extruding at a temperature of 200‹-300‹ C. and a speed of 1-12 feet per minute. The product is stated to have a high proof stress and ultimate tensile stress without objectionable loss in elongation and examples are given of the extrusion, with different sections, temperatures, and rates, of such alloys containing 0.6 per cent of zirconium and 3 per cent of zinc with or without 2 per cent of cadmium or containing 0.6 per cent of zirconium and 5 per cent of zinc. The zirconium may be between 0.4 to 0.9 per cent and, with 0.6 per cent of zirconium, 2 to 6 per cent of zinc may be used. Other suitable alloys are described in Specification 511,137.
Patent GB-681393-A (GB)
Title: Improvements in or relating to smokers' lighters
IPC: F23Q2/48
Filed: 1950-04-12
Abstract: 681,393. Friction lighters. RONSON ART METAL WORKS, Inc. April 12, 1950 [April 12, 1949], No. 9005/50. Class 75(iii) A lighter casing in which the bottom end plate 18 is secured to the side wall 16 of a fuel chamber 10 has the top end plate 17 held in position by a locking member 27 mounted on the end of a flint tube 24. The flint tube 24 is secured to the bottom plate 18 and the top and bottom plates 17, 18, formed separate of the wall 16, are soldered or brazed to the wall 16. The locking member is a nut 27 with a spherical outer surface to position the tube 24 in the top plate aperture 22 so as to be in proper relation to the friction wheel 14 and after tightening is soldered to the top plate 17.
Patent GB-1402367-A (GB)
Title: Elevator system with temporary hoistway structure and method for use thereof
IPC: B66B1/04
Filed: 1973-02-23
Abstract: 1402367 Elevators; building hoists OTIS ELEVATOR CO 23 Feb 1973 [13 March 1972] 9040/73 Headings B8L and B8H An elevator system in which a temporary hoistway is formed in a vertical air shaft of a building under construction, comprises a plurality of pairs of parallel horizontal, vertically flexible members 81, mounted on horizontal structural members 80 supported on the building structure, each pair forming opposite sides of the hoistway at each of several floor levels, and aligned ones of each pair of members 81 being interconnected by a guide rail 24 for the elevator car, the rails 24 distributing elevator shock loads to the members 80 at several floor levels due to each flexible member 81 only being able to transmit a limited load before deflecting. Each pair of flexible members 81 are coupled at their ends by members, 84 on which guide rails 46 for the elevator car counterweights are mounted, and each flexbile member 81 is clamped to its associated structural member 80, the spacing between the clamps and a space between the members 80 and 81 determining the force transmitting characteristic of the member 81. A buffer assembly 31 for the elevator car is clamped by wedge locks 36 to the guide rails 24 and may be attached through rods 76, pins 78 and lugs 77, to the car for movement to a new position once the clamps 36 have been released. A similar buffer assembly is provided for the counterweights. The elevator car is moved by ropes extending to the counterweight after passing over driving sheaves in a portable machine room supported at the top of the hoistway on a structure similar to those supporting the rails.
Patent GB-398914-A (GB)
Title: Improvements in grinding mills
IPC: B02C7/08
Filed: 1932-03-29
Abstract: 398,914. Disc-mills. BARTHELMESS, H., 203, Grunewaldallee, Zehlendorf, Berlin. March 29, 1932, No. 9072. [Class 59.] A disc-mill for grinding and drying the material by hot air comprises discs a, b arranged in a container d, Fig. 2, the disc a being supported by springs c so that it may move vertically, or laterally, as in the direction y, when meeting with an obstruction x. In Fig. 4, the disc b is mounted on a rotating shaft e and the disc a is connected to a container g suspended by springs c. The material is circulated in the container by the rotation of the disc b and is conveyed into the space between the discs, a cone f on the disc b conveying the ground material into the container which may be provided with holes h for sieving the ground material. As shown in Fig. 5, the stones a, b are made of a porous material and the ground material is withdrawn by a system of hot or cold gases circulated by fans, propellers, &c. arranged inside or outside the mill. The gas enters at n and carries the ground material from the container g into the rotating cone f, the coarse material falling on to the cone from which it is discharged through the sifter k to the grinding stones whilst the fines are discharged through the outlet o. The members k may comprise chain, rods, propellers, &c.
Patent GB-1064137-A (GB)
Title: Process for the manufacture of optically brightened photographic material
IPC: C09B23/10
Filed: 1965-03-03
Abstract: Optically brightened photographic material is prepared by coating a support with a dispersion prepared by mixing a photographic colloid and an aqueous emulsion of a solution, in an organic solvent, of (i) a hydrophilic resinous polymer having a refractive index similar to that of the colloid so that the polymer and colloid together yield a homogenous, transparent dispersion and (ii), an optical brightener free from acid groups. The dispersion may include the photosensitive material sion may include the photosensitive material (e.g. a gelatino silver halide emulsion optionally comprising colour couplers or bleachable dyestuffs), or it may be used to form an auxillary layer. Specified polymers are vinylidene chloride or styrene/methacrylic or acrylic alkyl ester/methacrylic or acrylic acid copolymers. and polyvinylpyrrolidone.  Specified brightening agents are benzoxazoles, benzimidazoles, pyrazolones, coumarins, naphthalic acid imides, stilbenetriazole and distyrylbenzenes.  The dispersions may also comprise a dispersing agent (e.g. an alkyl sulphonate) and an alkali (e.g. NH3).
Patent GB-1062323-A (GB)
Title: An improved toy gun
IPC: F41B7/00
Filed: 1964-03-04
Abstract: 1,062,323. Toy guns. H. YANO. March 4, 1964, No. 9120/64. Heading A6S. A toy gun 1 has two magazines 2, 3 for balls divided by a partition wall 4 which extends upwardly at one edge of an aperture A. Upon slidably retracting a trigger 6 against the action of springs 8, 14 a ball will descend from the magazine and drop onto a holder 17 of the trigger, and upon slightly further retraction of the trigger, lugs adjacent the holder 17 will engage in gaps in the channel in which the trigger is slidable and the trigger will pivot relative to lugs adjacent its rear end thus to disengage the striker 7 and thereby to cause discharge of the ball. A slidably mounted cover 13 may be opened to permit feeding balls into the magazine. Other embodiments may have a swingable plate which coacts with a stop to prevent return of balls from the magazine 2 to the magazine 3, or may have a slidable plate which in one position prevents transfer of the balls between the two magazines. A further slidable plate may be provided which in one position blocks the aperture A. Reference has been directed by the Comptroller to Specification 968,766.