baber/WOPTO huggingface dataset:
Patent GB-655571-A (GB)
Title: Improvements in multi-stage compressors
IPC: F04B39/06
Filed: 1947-12-16
Abstract: 655,571. Compressors. BRISTOL PNEUMATIC TOOLS, Ltd., and WESCOMBE, H. C. Dec. 16, 1947, No. 33126. [Class 8(i)] In a two-stage compressor an intercooler is disposed between the cylinders and a fan delivering cooling air to cool the cylinders and intercooler, the intercooler being so disposed that it offers no substantial obstruction to the air flowing from another portion of the fan directly on to the cylinders. Intercooler pipes 5 are disposed between a differential cylinder 1 and a drive pulley 10 fitted with fan blades 11. The
Patent GB-1388529-A (GB)
Title: Polymerization
IPC: C08G65/24
Filed: 1973-07-12
Abstract: 1388529 Epihalohydrin polymers B F GOODRICH CO 12 July 1973 [13 July 1972] 33269/73 Heading C3R Epihalohydrin polymers having weightaverage molecular weights of from 5000 to 300,000 are prepared by polymerizing epihalohydrins in a hydrocarbon medium in the presence of a catalyst comprising trialkylaluminium, water and an ether, the molecular weight of the polymers being controlled by conducting the polymerization at temperatures between 25 and 90‹ C. at a selected monomer-to-aluminium weight ratio of from 20 to 300 and with a selected concentration of from 10 to 98% of monomer by weight of the polymerization system. Examples describe the polymerization of epichlorohydrin and epibromohydrin using a tri-isobutyl-aluminium-water-diethyl ether catalyst.
Patent GB-979602-A (GB)
Title: Improvements in or relating to clips
IPC: A45D8/20
Filed: 1962-08-30
Abstract: 979,602. Hair clips. J. DEKEL. Aug. 30, 1962 [Sept. 19, 1961], No. 33346/62. Heading A4V. [Also in Division E2] A hair curl clip comprises upper and lower jaws 10, 12, formed by folding a blank at 14, the upper jaw being cut to provide lateral arms 16 and a resilient integral tongue 18 which is apertured at 30 to engage a projection 26 from the lower jaw forming a fulcrum, the length of the tongue from the root to the aperture 30 being greater than the distance between the root and the projection prior to the engagement so that the tongue is compressed and on opposite sides of a dead centre position urges the jaw 10 towards and away from the jaw 12. The clip is opened to a stable position by finger pressure to approximate handles 22, formed as an extension of the tongue 18, and 14, and the clip is closed by finger pressure at the free ends of the jaws. In modifications the crimp 28 in the lower jaw does not project above the upper jaw, more than one connection between the tongue and the jaw, and otherwise than by projections and apertures, are provided; a blank for a plastic clip has a thinned portion for folding, and a clip having separate jaws is included.
Patent GB-604955-A (GB)
Title: Continuous low-temperature dehydration
IPC: F26B5/06
Filed: 1945-12-10
Abstract: 604,955. Drying by freezing and subsequent sublimation DEHN, S. G. (Chain Belt Co.). Dec. 10, 1945, No. 33358. [Class 34(ii)] A continuous process apparatus for drying milk, coffee, and the like, comprises, a vacuum drying space 1 containing a moving heat conducting conveyer 2 which is supported and given a translational movement by means of rollers 3, 4 located at opposite ends of an arched supporting platen 5 upon which the conveyer 2 slides. Steam or hot water is circulated through the platen 5 from a heat exchanger 12 2 by pumps 16 and pipes 6, 9. Materialto be dried is sprayed on to the conveyer at a pressure which ensures that the liquid is not frozen until it reaches the conveyer, and then freezes on to it. The heat supplied by the platen liberates the frozen water by sublimation and the resultant water vapour is absorbed by a refrigerated absorbent such as lithium chloride brine, or alternatively is condensed back into ice in a non water-miscible absorbent. The absorbent is sprayed from a plurality of nozzles 21 beneath the platen and conveyer means (shown diagrammatically in Fig. 1) and is collected in a tank with a sump 22 at the bottom of the vacuum drying space. The absorbent is cooled in a vessel 29 and circulated therethrough by a pump 24. A refrigerating system comprising an ammonia compressor 51, condenser 48, liquid receiver 30, and expansion valve 31, is provided to cool the absorbent. A branch pipe 38 from the absorbent cooler 29 conveys some of the absorbent brine to a concentrator 67 via heat exchangers 40 and 45, when it is heated, and via a pipe 58. Concentrated brine is drawn off at 84 and returned via a coil 86 in the heat exchanger 45 and the inner tube 41 of the heat exchanger 40 to the pump 24. Steam from the brine concentrator is drawn off at 92 and circulated to the heat exchangers 12 and- 57 and is finally exhausted from the system at 98. Water from a main 137 is supplied to the brine concentrator as required by the steam demand by a pipe 103, and also to the heat exchanger 45 and ammonia condenser 48. Dried material is removed from the conveyer 2 by a doctor blade (not shown) and deposited in a funnel shaped collector from which it is conveyed by a further moving belt to a set of hoppers at each side of the vacuum chamber and thence into packing devices which seal off the vacuum before removal of the jars into which the material is deposited. The vacuum is maintained by a suitable vacuum pump at about 500 microns Hg absolute, and in the example given, 3.2 gallons per hour of liquid supplied at 60‹F. and 10 lbs./sq. inch pressure was dried to a moisture content of 1 per cent. residual moisture.
Patent GB-376169-A (GB)
Title: Improvements in or relating to cigarette making machines
IPC: A24C5/32
Filed: 1931-12-02
Abstract: 376,169. Cigarette-making machines. MOLINS, D. W., Robert E. Lee Hotel, Winston-Salem, North Carolina, U.S.A. Dec. 2, 1931, No. 33398. [Class 130.] Cigarettes from the cutting mechanism of a continuous-rod machine are separated by being accelerated between a faster moving band 2 and roller 3, and are then braked axially by being gripped between surfaces 8, 9 on the deflectors 5, 6 and an upstanding spring 10. Loosely packed or abnormally weighted cigarettes thus pass to the belts 7 out of alignment with the remainder.
Patent GB-201514-A (GB)
Title: Electron discharge devices
IPC: H01J5/42
Filed: 1922-12-07
Abstract: 201,514. Western Electric Co., Ltd., (Assignees of Houskeeper, W. G.). July 29, 1922, [Convention date]. Vacuum tubes. - The filament leading-in wire 38, is attached to a disc 50, for instance of copper, and one surface of the disc is fused to the end of a tubular member 37 projecting inwardly from the glass container, and a ring 39 of glass is fused to the other surface. According to the Specification as cpen to inspection under Sect. 91 (3) (a), a supporting framework for the filament and grid consists of two insulating discs 18, 24, Fig. 1, (Cancelled), spaced by a straight rod 22 and bowed rods 20, 21, and carried by supports 16 which are secured to tabs 15 on a crimped collar 14 having interlocking ends 14<a> and fitting around an inwardly projecting stem 13. The filament 29 is mounted around hooked wires 26, 28 the ends of which are crimped to engage with apertures in the discs 18, 24. The wires 28 are positioned after the filament has been formed and suspended from the wires 26, and the ends of the wires 28 are forced into their apertures until the hooks engage with the filament. The ends of the filament are secured in slots in the rods 20, 21 by means of threaded sleeves 31 and nuts 31<a>, and each of the rods has a threaded connector 40 with a sleeve 41 having a saw cut and a nut and adapted to receive a leading-in wire 38. The grid consists of a molybdenum wire 36 wound around and spaced by helices 35 of molybdenum wire tightly wound around and crimped to molybdenum rods 32, which are secured at one end to the disc- 18 by crimps 33 and coils 34 of wire, the other ends resting against the periphery cf the disc 24- so as to allow expansion. The grid leading-in wire 44 is secured to one of the coils 34 and is sealed in a glass tube 43 extending outside the container. The rods 20, 22 are connected by links with the rods 16 so that the supporting framework is connected through a filament lead to earth. The anode forms part of the container and is fused to a glass portion as described in Specification 202,047. This subject-matter does not appear in the Specification as accepted.
Patent GB-1063178-A (GB)
Title: Improvements in or relating to storage or electrolytic cells
IPC: H01M50/528
Filed: 1965-08-04
Abstract: 1,063,178. Storage cells. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Aug. 4, 1965 [Aug. 4, 1964], No. 33450/65. Heading H1B. A storage cell of the type with a cylindrical casing and two electrodes of opposite polarity spirally wound together with a separation, has the outermost spiral of the assembly welded to the internal wall of the casing.
Patent GB-604994-A (GB)
Title: Improvements in and relating to attachments for typewriting or like machines
IPC: B41J17/00
Filed: 1945-12-11
Abstract: 604,994. Typewriters &c. LAMSON PARAGON SUPPLY CO., Ltd., and GARWOOD, V. W. Dec. 11, 1945, No. 33485. [Class 100(iv)] An attachment for front-feed typewriting and like machines for supporting a record assembly 10 provided with a carbon carrier 12 comprises a rearwardly and downwardly extending surface 6, 7 provided with a stop 8 adapted to engage the carrier and arrest its movement and that of the assembly when the leading edge of the assembly is released from the platen 1. Thesurface 6, 7 is supported by members 3, 4 bolted to the typewriter frame 5, and the part 7 is disposed at a much steeper angle than the part 6. The carrier 12, which as shown is constructed as described in Specification 549,972, maintains the assembly taut during typing, on completion of which the leading edge passes out of the grip of the platen 1 and rollers 2 and the assembly is pulled back by the carrier until the lat-- ter engages the stop 8. In this position, the typed form is supported by the surface 6. The stop 8 may be adjustable.
Patent GB-521457-A (GB)
Title: Improvements in or connected with machines for decorticating sisal and like fibrous material
IPC: D01B1/22
Filed: 1938-11-18
Abstract: 521,457. Stripping fibrous material. ROBEY & CO., Ltd., (Souchon, M.). Nov. 18, 1938, No. 33574. [Class 120 (i)] A machine for decorticating sisal and other fibrous material has a rotatable drum 2 with peripheral blades 2a by which the material is decorticated against the feed rest 8 after it has been fed manually over the table 7 through the opening 6. The fibres hanging down over the rest 8 are blown outwards by the draught caused by the drum, or by an independent fan, and are carried by the endless belt 15 to the front of the machine, The belt is operated by a pulley 12 driven by chain gearing from the main shaft 3. The machine may be. portable and is then transported on wheels 25, but screw posts 26 can be screwed down to engage the ground when the machine is to be operated.
Patent GB-1453560-A (GB)
Title: Racemization of optically active allethrolone
IPC: C07C49/743
Filed: 1975-08-12
Abstract: 1453560 Allethrolone oxime SUMITOMO CHEMICAL CO Ltd 12 Aug 1975 [12 Aug 1974] 33616/75 Heading C2C The invention comprises (-) allethrolone oxime. The compound is prepared by reacting (-) allethrolone with hydroxylamine. The oxime may be hydrolysed in water or a mixture of water and an organic solvent miscible with water in the presence of an acid to yield racemic allethrolone.
Patent GB-1478552-A (GB)
Title: Stabilisation of xanthophylls
IPC: A23L5/41
Filed: 1975-08-12
Abstract: 1478552 Stabilized xanthophyll product CPC INTERNATIONAL Inc 12 Aug 1975 [12 Aug 1974] 33617/75 Heading C2V [Also in Division A2] A stabilized product is obtained by partially saponifying xanthophyll esters derived from marigolds so that the product contains unsaponified xanthophyll esters in an amount of at least 10% but not more than 50% by weight of the original xanthophyll esters. Preferably the product contains 10 to 20% by weight of the unsaponified esters. An antioxidant may be added. The material may be saponified with an alkali, e.g. alcoholic sodium or potassium hydroxide. The product may be added to poultry feed. Examples are given.
Patent GB-1193794-A (GB)
Title: Automatic Copying Machine Equipped with Developer Roller Disengaging Device
IPC: G03B27/72
Filed: 1968-07-15
Abstract: 1,193,794. Photographic copying apparatus. ADDRESSOGRAPH - MULTIGRAPH CORP. July, 15, 1968 [July, 31, 1967], No.33659/68 Heading G2A. In the developer section 34 of copying apparatus, the roller 90, which applies developer liquid to the copy sheet as it passes between rollers 90 and 92, can be retracted from roller 92 as the main lever controlling the operation of the apparatus is moved from "on" to "off". Section 34 is shown as part of a copying apparatus in which the original and copy sheets are fed in at stations 28 and 26 respectively, passed in contact round exposure cylinder 22 containing a lamp 24, and then separated by vacuum chests 70, 72. The orignal is passed out of the apparatus by rollers 76 and 78, while the copy sheet is carried on to the developing section 34. This comprises a casing of which the lower part is formed by a tray 94 which holds the developer liquid, and into which dips a roller 96. This wets the applicator roller 90 and, as the copy sheet passes between roller 90 and pressure roller 92, the liquid is applied to the sheet. This is subsequently passed out of the apparatus via guides 98, 100 and rollers 102, 104 and delivered to a receiving tray 36. Operation of the apparatus is initiated by pushing inwards a handle Fig. 4, (not shown) comprising a knob (18) on the end of a shaft (128). This energizes a control circuit which switches on the lamp, and leaves it operating at reduced brilliance during a stand-by condition in which the drive motors and a cooling blower also operate at reduced power. When an original is fed to the machine for copying, it actuates a switch which energizes the lamp to full brilliance, and the blower and drive motors to normal operational levels. The applicator roller 90 is mounted on a shaft journalled in a pair of slide blocks which are connected to the handle shaft (128). Thus when this is pushed inwards to turn the apparatus off, roller 90 is at the same time pulled away from rollers 92 and 96 and disengages from them. Conversely, when the handle is pulled outwards to turn the apparatus on, roller 90 is moved back into engagement with rollers 92 and 96. Liquid is continuously circulated between the tray 94 and a supply reservoir so as to maintain a constant level in the tray, and the amount of liquid applied to the copy sheet can be metered.
Patent GB-1307621-A (GB)
Title: Process for the treatment of ground waters surface waters and  effluents
IPC: C02F1/52
Filed: 1970-07-10
Abstract: 1307621 Flocculating METALLGESELLSCHAFT AG 10 July 1970 [19 July 1969 1 June 1970] 33686/70 Heading C1C Water containing suspended solid matter is purified by treating in five stages in five separate zones as follows, (i) flocculent is added, (ii) sludge formed in the process is mixed in, (iii) a flocculation aid is added and the mixture agitated for 30 sees. to 5 mins. with an agitator having a power output of at least 20 watts per cubic metre of liquid, (iv) coarse flakes of impurity are formed, (v) the coarse flakes are settled to sludge, some of which is recycled to stage (ii) and the clarified water is removed. In stage (iii) several different flocculation aids may be used and zone (iii) may be divided into a corre-  sponding number of sub-zones. When the water being treated is particularly impure, a secondary flocculation may be effected by adding a small amount of flocculent to the clarified water from stage (v), furthermore, the resulting liquid may finally be filtered. The secondary flocculation is preferably effected with a progressively diminishing quantity of flocculent, which increases the effective life of the filter. Small amounts of zone may be added with or after the addition of the secondary flocculent. In Fig. 1, impure water to which flocculent has already been added enters at A into chamber C where sludge is added, up into chamber D where a flocculation aid is added and agitation provided by rotating agitator H, which has depending blades as shown and upstanding blades (not shown) which project into chamber D. In reaction zone E coarse flakes are formed and these pass to sedimentation zone F whilst clear water is discharged at B. Fixed baffles (not shown) are attached to the periphery of chambers D and E.
Patent GB-1407266-A (GB)
Title: Directional microphones
IPC: H04R1/38
Filed: 1972-07-19
Abstract: 1407266 Directional microphones WESTERN ELECTRIC CO Inc 19 July 1972 [21 July 1971] 33704/72 Heading H4J A directional microphone having a second order gradient pattern comprises two acoustic chambers 15, 16, a first pair of tubes 11, 13 of equal length, for delivering a sound sample into a respective chamber and a pair of tubes 10, 12 longer than tubes 11, 13, but of equal length, for delivering a sound sample into a respective one of the chambers 15, 16. The tubes sample a sound field at points on a substantially straight line, preferably passing through a diameter of a cylindrical casing 14. A transducer 17, 18 is common to both chambers 15, 16 for combining signals developed in the chambers. The structure may be regarded as comprising two first order gradient microphones of opposite polarities spaced apart from one another, a delay system, and an arrangement for adding the output of one gradient microphone to the delayed output of the other. The transducer is formed of a perforated backplate 17 and an adjacent electrode foil 18. The electrode foil 18 divides the casing 14 into the two chambers 15, 16. One of the chambers is adjustable, using a screw plunger (not shown). Backplate 17 is a brass disc, 4 cm. diameter, having four circular 25À4 Ám ridges on one side and 100 holes. Electret foil is a 25À4 Ám layer of fluoroethylenepropylene metallized on one side and charged using an electron beam. Tubes 10 and 12 are of the same length. Tubes 11 and 13 are of the same length different from that of tubes 10 and 12. All tubes are open at their ends and contain steel wool to damp acoustic resonances. The outer ends of tubes 10, 13 have the same spacing as the outer ends of tubes 11, 12. Each cavity 15, 16 and its associated tubes form a Helmholtz resonator or an acoustic low-pass filter. The resonance frequency is at the lower end of the frequency range of interest. If only two tubes are used, a short tube feeding a layerone cavity and a layer tube feeding the other cavity the microphone characteristic reduces to a cardioid pattern.
Patent GB-742830-A (GB)
Title: Improvements in or relating to submarine cable repeater housings
Inventor: WESTON WILLIAM KIRBY
IPC: H02P9/26
Filed: 1953-01-20
Abstract: 742,830. Repeater housings. STANDARD TELEPHONES & CABLES, Ltd. Dec. 4, 1953 [Jan. 20, 1953], No. 33792/53. Divided out of 742,801. Class 38 (1). A submersible housing 2 for apparatus associated with a submarine cable comprises a bulkhead 6 which closes the apparatus chamber 4, is subjected on its outer side 5 to hydrostatic pressure and has a small freedom of movement under said pressure so as to be pressed against a shoulder in the housing, and an annulus 11 of relatively soft metal which flows under said pressure and forms an antidiffusion seal between the bulkhead and the housing. The annulus 11 may lie in a plane substantially perpendicular to the axis of the housing, or between conical surfaces which make an angle with said axis which does not exceed the angle of friction for the contacting materials. A peripheral groove 18 may be provided in bulkhead 6 in which a resilient deformable ring 17 is inserted which is deformed to make a water-tight seal when the bulkhead is pressed into position. Specification 742,801 is referred to.
Patent GB-1110216-A (GB)
Title: Improvements in and relating to formes carrying surface designs for use in printing or embossing
Inventor: CARPENTER ALBERT STANLEY
IPC: B41C1/18
Filed: 1964-08-19
Abstract: 1,110,216. Printing plates. COURTAULDS Ltd. 18 Aug., 1965 [19 Aug., 1964], No. 33846/64. Addition to 1,045,674. Heading B6C. [Also in Division B5] In the forme production process disclosed in the parent case in which a design-bearing sheet lines the internal surface of the hollow rotatable cylinder air is withdrawn from the cylinder immediately after the insertion of the sheet. In a preferred sequence of operations the cylinder is rotated at high speed after the air is evacuated and then the air is allowed to reenter prior to the introduction of the casting material.
Patent GB-449446-A (GB)
Title: Improvements relating to the stitching together of paper sheets to form blocks or pads
IPC: B42B2/02
Filed: 1935-12-06
Abstract: 449,446. Stapling. NAUMANN, R., 28, Bischofsweg, Dresden, Germany. Dec. 6, 1935, No. 33853. Convention date, Jan. 4. [Class 89 (iii)] Sheets 5 to be stitched together to form a block or pad are assembled with their edges flush in an open-topped container 6 provided with an abutment 8 which is adjustable in accordance with the size of the sheets, the front edges of which project beyond the front of the container. The latter is then moved step-by-step past the stitching station 22. To control the spacing of the stitches, a rod 13 on the container carries a roll 12 adapted to engage successive gaps in a guide member 15 secured to the machine table 2. The gaps are formed by turning back the required number of a series of pivoted sections 19 of the member 15. The latter, which is bodily adjustable with respect to the stitching head 1 in order to vary the spacing of the stitches from the front edge of the sheets, has a smooth guiding surface 21 for the sheets. The rod 13 is adjustable on the container 6 in accordance with the width of the sheets. The empty containers are returned to the loading point by a roller conveyer 3.
Patent GB-804659-A (GB)
Title: Roll for automatically aligning moving objects with respect to a predetermined path of travel normal to the roll as the objects pass thereover
IPC: B21D43/02
Filed: 1956-11-06
Abstract: 804,659. Rollers. UNITED STATES STEEL CORPORATION. Nov. 6, 1956 [Dec. 27, 1955], No. 33895/56. Class 42 (2). [Also in Group XVI] A roller for centring a strip with respect to a predetermined path of travel, comprises a substantially cylindrical body having flexible projections on its periphery arranged on both sides of the transverse central plane and inclined radially toward the axis of the roll away from the transverse central plane, and a thin flexible sleeve 22 surrounding the body in close engagement therewith. As shown, the projections are formed by slots 18 and 20 in a rubber cover 14 secured to a metal core 4. The slots may be wide slots as described in Specification 709,908 [Group XVI], or, formed by slitting as described in Specification 76,470, [Group XVI]. The sleeve 22 which is of softer material than the cover may be of rubber, leather, or cloth. If the roller is intended for use as a feed roller the roller shaft 6 has an extension 10 driven through gearing by a motor 12.