baber/WOPTO huggingface dataset:
Patent GB-990667-A (GB)
Title: Closed cycle cryogenic system
IPC: F25B9/14
Filed: 1963-10-14
Abstract: 990,667. Refrigerating; thermal regenerators. MALAKER LABORATORIES Inc. Oct. 14, 1963 [Nov. 30, 1962], No. 40433/63. Headings F4H and F4K. A closed cycle refrigerating machine operating on a modified Stirling cycle using helium as the working medium comprises superimposed expansion pistons 22, 25 and 28 of successively decreasing diameter disposed in cylinders 23, 26 and 29 respectively and a compression piston 32 in a cylinder 33, the compression and expansion pistons being mutually parallel and disposed perpendicularly to a crank-case 2. The compression space 31 above piston 32 is connected via an after-cooler 42 and a regenerator 43 to a passage in a cooling member 45, which passage communicates with the expansion space 24 above piston 22 and, via a second regenerator 48, with a similar passage in a second cooling member 51. This second passage communicates with the expansion space 27 above piston 25, and, via a third regenerator 50, with a third passage in a cooling member 52, the third passage being in communication with the expansion space 30 above piston 28. The expansion spaces 24, 27 and 30 thus operate at successively lower temperatures and the cooling members 45, 51 and 52 are maintained at 100 K, 40 K. and 15 K. respectively, the members being used to cool helium circulating in a closed circuit comprising an auxiliary compressor 18, heat exchangers 54, 55, 56 and 72 and a Joule-Thomson valve 58. Helium liquefying at the valve 58 is collected in a vessel 73 having a vapour return line 80, the vessel containing a super-conducting magnet 74 which is thus maintained at 4À2 K. A radiation shield 53 attached to the head of cylinder 23 encloses those parts of the machine operating at below 100 K. and the shield is itself enclosed by an evacuated jacket 46. Regenerator 43 is filled with lead-plated copper wool 82 and regenerators 48 and 50 with lead spheres 83. The compression and expansion pistons are mounted on respective guide pistons 15 and 13 operating on " dead " spaces 37 and 21 which serve to reduce the pressure differences across the piston rings of the compression and expansion pistons. The crank-case 2 is filled with helium at 200 p.s.i.a., compression space 31 being connected to the crank-case by a line 39 having a one-way relief valve 38 to maintain a minimum pressure of 200 p.s.i.a. in space 31. Similarly, spaces 37 and 21 are connected to the crank-case by lines 102 and 103 having one-way valves 104 and 105.
Patent GB-937358-A (GB)
Title: Improvements in or relating to television scanning systems
Inventor: BYATT DENNIS WILLIAM GEORGE
IPC: H04N3/30
Filed: 1961-11-13
Abstract: 937,358. Television. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. July 13, 1962 [Nov. 13, 1961], No. 40500/61. Class 40 (3). [Also in Group XL (c)] A P.P.I. radar display 3 with a rotating radial time-base is viewed by a television camera 4 employing conventional line and field rectangular co-ordinate raster scanning and the resulting signals applied through an amplifier 5 to a display tube 6, the arrangement being characterized by the provision of mutually perpendicular pairs of coils X and Y for the line and field deflection units CL and CF of the camera 4 and the corresponding units ML and MF of the display 6 together with switching valves VXCL, VYCL, VXML and VYML for the line time base 10 and similar switching valves VXCF, VYCF, VXMF and VYMF for the field time base 8 whereby, at a rate equal to a whole number (including unity) of television fields, the line and field directions of scan may be interchanged. The resulting scans thus proceed alternately as illustrated in Figs. 2 and 3 with the final display, Fig. 4, exhibiting a picture from which the line structure is eliminated. The switching valves are controlled by a bi-stable circuit 7, which for a conventional double interlaced system (i.e. two fields per frame) is controlled by the field time base 8 to operate a half the field rate by a triggering signal obtained from a divider stage 8. Display 6 is provided with a screen of sufficient afterglow to eliminate flicker.
Patent GB-1440212-A (GB)
Title: Derivatives of 2-phenoxyacetamido-5-nitrothiazoles
IPC: C07D277/44
Filed: 1973-08-29
Abstract: 1440212 Tiazole derivatives PHAVIC SprL 29 Aug 1974 [29 Aug 1973] 40626/73 Heading C2C Novel thiazole derivatives of the Formula I wherein at least one of the symbols R 1 , R 2 , R 3 , R 4  and R 5  are halogen, CF 3  or C 1-3  alkyl, the remaining symbols representing hydrogen are prepared by reacting 2-amino-5-nitrothiazole with the appropriate phenoxyacetyl halides. Pharmaceutical compositions, suitable for oral, parenteral, rectal or vaginal administration, contain the above thiozoles and suitable pharmaceutical carriers. The compounds possess parasiticidal, bactericidal and fungicidal activities.
Patent GB-903006-A (GB)
Title: Track packing machine
IPC: E01B27/16
Filed: 1959-12-01
Abstract: 903,006. Tamping railway ballast. PLASSER, F., and THEURER, J. Dec. 1, 1959 [Dec. 2, 1958], No. 40793/59. Class 104 (2). In a track packing machine, the two-armed rocking lever tools are vibrated by means of an eccentric shaft and swivelled by an hydraulic control which acts at the same point of the rocking lever at which an element from the eccentric shaft is pivotally connected or acts. In the arrangement shown in Fig. 1 a pair of tools 3, mounted on bearings 6 provided on a vertically adjustable tool carrier 11, are vibrated by an eccentric shaft 1 by way of arms 2 in which are formed cylinders 26 in which spring- biased pistons 27, actuated by fluid pressure through a pipe 23, move to swivel the tools 3. In a modification, shown in Fig. 2, the tools 3 are in the form of bell-cranks pivoted, in the region of the knee, on bearings 6 supported by leaf-springs 36 from the tool carrier 11. The tools 3 are vibrated in the vertical direction by the eccentric shaft 1 and are swivelled by the piston-rod 32 moving the shaft 1 vertically. The horizontal vibration is taken up by the springs 36. In a similar arrangement, Fig. 3 (not shown), arms vibrated by the eccentric shaft engage slots in the ends of the bell-crank levers to eliminate horizontal vibration.
Patent GB-882372-A (GB)
Title: Cine-camera
Inventor: HAMPL JAN
IPC: G03B19/18
Filed: 1959-12-02
Abstract: 882,372. Kinematographic cameras. MEOPTA PREROV, NARODNI PODNIK. Dec. 2, 1959, No. 40952/59. Class 97(1)., A cine camera with a single daylight spool for consecutive exposure of the film in two rows each on one half of the film moving in opposite directions, the objective being moved relative to the film and the camera being turned through 180 degrees to expose the second row, said camera having a winding core partly surrounding the spring driving device and being engageable therewith by means of gearing and a clutch. In the embodiment shown, a spring 4 mounted on a hollow core 7, in which a shaft of a winding core 9 is freely pivoted, may be tensioned by turning a knob 3, and is locked by a rockable pawl and ratchet 6. The winding core may be operatively connected to the spring device 4 through gearing 15, 16, 26 and friction coupling 29 by pressing slide 17, so that one row of the film may be exposed. To expose the other row the device 4 is coupled through gearing 18, 19 21 and friction coupling 27 to a daylight spool 22 by moving slide 20. The film may be attached to the winding core 9 by threading it in a channel of a rotatable member on the core 9, and rotating the member until the perforations of the film are engaged by a clamping member 10.
Patent GB-863091-A (GB)
Title: Improvements in roller shutters and blinds
IPC: E06B9/34
Filed: 1958-12-23
Abstract: 863,091. Slat blinds. GRAN, J. C. Dec. 23, 1958, No. 41531/58. Class 20(3) A device for tilting the "leader" slat 2a, Fig. 1, of a roller shutter in the spaced-closure position, i.e. when the lowermost slat is just touching the lintel, the slats being then separated and the tilt being imparted to the other tiltable slats 2 by a frontal chain 9, comprises a tilting tenon 19, Figs. 1 and 2, carried by the end of the leader slat 2a and pivoted thereto at 21 to have a limited tendency to move out of the slat, a guiding path 30 defined in a plate 26, Figs. 1 and 4, located by a shutter side guide 3 the path 30 being adapted to guide the tenon 19 to tilt the slat 2a and hence of all the tiltable slats 2, and a controlled element 33, Figs. 4 and 5, which permits the tenon 19 to enter the path 30 as the result of a backward movement following an upward movement of the shutter. The tenon 19 is located in a groove in the leader slat 2a covered by a plate 15, Fig. 2, and projects from the slotted end 22 of the plate at the lower part of the slat, being urged outwardly by a spring 23 against the stop end 22 of the plate from which the tenon is held away by the guide 3. The plate 26, Figs. 4 and 5, is the cover plate of a casing 24 and there is a corresponding slot in a bottom plate 27 of the casing supported in the guide 3 at the level of the leader slat 2a in the spaced closure position of the shutter. The plate 33 of rhomboidal shape is located between parallel plates 26 and 27, Fig. 5, and has two oblique apertures 34, 35, Fig. 6, through which pass pins 31, 32 situated at the same level and fixed perpendicularly to plates 26, 27. A pin 36 on plate 33 extends through a vertical elongated slot 37, Fig. 6, in the plate 27. The plate 33 is guided obliquely to the direction of movement of the shutter so that on lifting the shutter a stress from below by the tenon 19 against the projecting angle 38, Fig. 6, in its normal position blocking the entrance to the path 30, compels the plate 33 to rise retracting the angle 38 and unblocking the entrance to the path 30. The spring 23 forces the tenon 19 into the path 30 and a backward movement of the shutter allows the tenon to ride down the path and tilt the slats. A downward stress against the angle 38 forces the plate 33 to oscillate about its pin 36, made possible by the wider ends of apertures 34, 35, retracting the angle 38 to the position shown in dotted lines in Fig. 6 and maintaining the blocking of the path 30. The plate 33 reverts to its normal position under its own weight and a stop, formed by the apertures 34, 35 or by the plate 26 prevent the plate passing the point at which the vertex of the angle 38 is aligned with the lower edge of the entrance to the path 30.
Patent GB-1019414-A (GB)
Title: Improvements in or relating to apparatus for and methods of detecting faults or joins in webs or stacks of material
IPC: D06H3/08
Filed: 1963-10-21
Abstract: 1,019,414. Photo-electric flaw detection. WIGGINS TEAPE RESEARCH & DEVELOPMENT Ltd and R. GLADSTONE. Oct. 20, 1964 [Oct. 21, 1963], No. 41542/63. Heading G1A. To detect flaws in webs, stacks of paper sheets, or the like, the material to be tested is passed between a radiation source and a detector. The radiation may be light. The output of the detector, for example the photo-multiplier 12, depends on the amount of radiation transmitted and is directed through cathode follower 17 to a trigger circuit actuating a signalling device or stack removing device. The cathode-follower output signal is also fed to a feedback circuit having a long time constant controlling the detector. Thus long term changes in opacity will not affect the functioning of the flaw detector. The feedback circuit may incorporate large capacitors 25 as shown or a saturable reactor. The apparatus may be set to detect tears, overlapping, and joins but not small marks.
Patent GB-966596-A (GB)
Title: Profiled band for the manufacture of pressure-resisting hollow bodies
Inventor: SCHULZ HORST
IPC: B21C37/12
Filed: 1961-11-21
Abstract: 966,596. Armouring tubes. MASCHINENFABRIK GERMANIA KARL-MARX-STADT. VEB. Nov. 21, 1961, No. 41604/61. Heading B3E. A band for winding round pressure resistant hollow vessels has the cross-section shown, with rolled grooves 4 on each side of beads or fillets 3, the material of a band wound over the given band thus being displaced into the grooves by the fillets. The cross-section of a band forming the outermost layer of a finished vessel is smooth on both sides.
Patent GB-1066830-A (GB)
Title: Improvements relating to filter press trays
Inventor: JONES SAMUEL
IPC: B01D25/21
Filed: 1964-10-13
Abstract: A filter press tray has strips fitted over the grooves or recesses (e.g. between frusto pyramids) in the faces of the tray, thus forming filtering conduits which cannot be blocked up by filter cloths.
Patent GB-1472611-A (GB)
Title: Lytic enzyme and method of preparing same
IPC: C12R1/01
Filed: 1974-09-25
Abstract: 1472611 Lytic enzymes ex Actinomyces recifensis sp. DNEPROPETROV GOSUDARSTVEN UNIVERSITET IM 25 Sept 1974 [28 Sept 1973] 41727/74 Heading C3H A method for the production of lytic enzymes comprises growing the microbiological strain Actinomyces recifensin var. luticus 2435 on a nutrient medium containing sources of nitrogen, carbon, and mineral salts and cells of Staphylococcus aureus at from 25 to 28 C. from 3-5 days, separating the mycelium and isolating the enzyme produced from the culture fluid. Prior to the cultivation an inducer may be added, said inducer being Staphylococcus aureus, Micrococcus glutamicus, Bacillus snbtilis, Salmonella gallinarum or Saccharomyces cerevisiae.
Patent GB-1424605-A (GB)
Title: Railway vehicles
IPC: B61F5/14
Filed: 1973-09-05
Abstract: 1424605 Railway vehicle undercarriages GENERAL STEEL INDUSTRIES Inc 5 Sept 1973 41733/73 Heading B7L A railway vehicle comprises a bogie having a pair of wheeled axles 2, 3 spaced apart longitudinally of the bogie; bogie framing including side frame 7R, 7L and stub transoms 9R, 9L having bent extremities 13R, 13L pivoted by trunnion pins 15R, 15L to side frames 7L, 7R respectively; upwardly facing bearing surfaces 95 on the side frames intermediate the axes; vehicle body structure U posioned above the bogie structure and including separate air reservoirs 71 to 79 at its opposite sides; separate pneumatic spring devices 81, 83 at the opposite sides of the vehicle including upright flexible walled bellows 81 fixed secured at their upper ends to and communicating with the reservoirs respectively and rigid bearing members 83 at the lower ends of the bellows 81 in air communication with the latter, the members 83 at their lower ends being slidably mounted on the surfaces 95; and means in the form of radius arms 96, confining the members 83 to arcuate movement on the surfaces 95 about vertical axes near the centre of the bogie framing and anchor link means 109 for retaining the members 83 against substantial movement lengthwise of the body structure U. Elastomeric and metal plate pad devices 59, 61 are compressed between the stub transoms 9R, 9L and a vertical port 55, 57 carried by the body structure U. In another embodiment the pad devices are replaced by cranked radius arms pivotally connected to a link and the anchor links are outboard of the side frames.  Reference has been directed by the Comptroller to Specification 1,218,527.
Patent GB-966228-A (GB)
Title: Improvements in or relating to projection systems
IPC: G03B21/60
Filed: 1960-12-05
Abstract: 966,228. Projection screens. W. S. MILLER. Dec. 5, 1960, No.41822/60. Heading G2J. A projection system (still or cinÚ) includes a screen comprising a plurality of reflecting elements each element being so shaped as to reflect into the viewing field with substantially uniform intensity light emanating from a finite predetermined region (see Fig. 4) which is adapted to be poorly reflecting so that in the absence of illumination due to the projection beam the screen will appear dark. As shown in Fig. 1, the poorly reflecting region is defined substantially by light absorbing baffles 26, the projection beam from projector 10 being directed, via mirror 11 and an aperture in the baffles, on to screen 12 the elements of which are as shown in Figs. 7 and 8, the surface of each element being so shaped as to reflect the projected light uniformly into a viewing field 22. A transparent protective plate 12B, to which the surfaces of the elements are generally inclined serves to reflect into the baffles ambient light coming from regions outside the viewing field 22. The elements may have rectangular boundaries or they may be trapezoidal as in Fig. 14 and alternately convex and concave to provide a contiguous surface across. one row of elements. The screen may be curved, and instead of a plate 12B the screen elements may be coated for example with a plastic material the outer surface of the coating being plane and smooth. To maskthe discontinuities in its surface, the screen may be oscillated in its own plane.
Patent GB-1286844-A (GB)
Title: Process for the production of a polyethylene film
IPC: B29C48/10
Filed: 1969-08-21
Abstract: 1286844 Paper-like polyethylene film FARBWERKE HOECHST AG 21 Aug 1969 [21 Aug 1968 19 Feb 1969] 41829/69 Heading B5B  Tubular high-density polyethylene film having a rough surface and being generally similar to paper is produced by extrusion with subsequent cooling to a temperature 3-80 C. above the crystallite melting point, the film being thereafter inflated and simultaneously drawn off, both at a ratio of 1 : 4 to 1 : 10, whilt it cools and crystallizes, whereby orientation, stretching and crystallization take place simultaneously. Cooling may be effected with air ring 6 having insertions 5 internally for even distribution of air supplied by conduit 7. Bars 4 are arranged to convert the tube into rectangular shape. A film of 5-50 Á thickness may be prepared. The polymer may be of density 0À94-0À97 g./c.c. with a M.W. of 60,000-500,000.
Patent GB-1427897-A (GB)
Title: Co-oxidation process for the production of dmt
IPC: C07C69/82
Filed: 1974-09-26
Abstract: 1427897 Production of dimethyl terephthalate HERCULES Inc 26 Sept 1974 [4 Oct 1973] 41831/74 Heading C2C A process for the production of dimethyl terephthalate comprises: (a) an oxidation stage wherein p-xylene, recycled p-toluic acid from one later stage, and recycled methyl ptoluate from another later stage are co-oxidized with oxygen to form an oxidate containing terephthalic acid, p-toluic acid and monomethyl terephthalate; (b) a separation stage wherein a substantial proportion, but not all, of the ptoluic acid is separated from said oxidate, and at least a part of said separated p-toluic acid is recycled to the oxidation stage; (c) an esterifieation stage wherein said oxidate is esterified with methanol to form a reaction mixture containing methyl ptoluate and dimethyl terephthalate; and (d) a fractionation stage wherein said reaction mixture is fractionated to give methyl p-toluate, which is recycled to said oxidation stage, and dimethyl terephthalate.
Patent GB-1484965-A (GB)
Title: Alarm systems
IPC: G08B17/00
Filed: 1975-10-14
Abstract: 1484965 Alarm systems; selective signalling NOHMI BOSAI KOGYO CO Ltd 14 Oct 1975 [14 Oct 1974] 42082/75 Heading G4H In an alarm system, a plurality of signal lines L1-L4 pass through protected areas A1- A6 each containing an alarm device S, T arranged in response to the initiation D to apply pulsatory signals to the same predetermined number of lines (2 in Fig. 1) in a unique combination, the lines being connected to a central station C including means G1-G24 operative in response to the receipt of signals on any said combination of lines to provide alarm indications N1-N6 denotive of the area or areas in which an alarm has been initiated and not to respond to the receipt of signals on any number of signal lines other than the predetermined number. As described, a fire alarm has manually or automatically operated contacts D connected to a UJT relaxation oscillator S, which pulsewise earths a selected pair of lines L. Gates G1-G6 are enabled by signals on corresponding pairs of lines L, while gates G21-G24 are enabled if there are signals on any three lines; whenever a gate G21-G24 is enabled, the outputs of gates G1-G6 are blocked at gates G11-G16. The outputs of G11-G16 operate self-holding relays N1-N6. Fig. 4 illustrates the case of simultaneous alarms in A1 and A2 which gives rise to a spurious signal on L4, the resulting output from G4 being blocked by the output from G21.
Patent GB-898310-A (GB)
Title: Improvements in moulded mats
Inventor: WARREN FREDERICK WILLIAM
IPC: B29C67/24
Filed: 1959-12-11
Abstract: A moulded mat such as a car mat comprises a continuous base layer of vulcanized natural or synthetic rubber composition having adherent thereto a coloured surface layer of thermoset composition containing a vulcanized oil-resistant elastomer and a polymer derived from vinyl chloride or vinylidene chloride.  The base layer may be cellular or micro-porous, examples of suitable blowing agents being given in the parent Specification.  The oilresistant elastomer may be a copolymer of butadiene and acrylonitrile compounded with vulcanizing agents such as sulphur, accelerators of vulcanization and zinc oxide.  A vinyl chloride-vinyl acetate copolymer may be used in the surface layer with, if desired, plasticizers such as epoxidized oils or polyester plasticizers, e.g. polypropylene adipate.  A synthetic rubbery or resinous polymer or copolymer, e.g. butadiene/styrene, may be incorporated into the surface layer to assist processing and modify the hardness of the finishing layer, and also in the production of less flexible abrasion resistant edges for the mat, from a strip of vulcanizable rubber composition harder than the base layer that is applied to the mould surface before applying the continuous base and surface layer.  The two layers are joined and the surface layer may be embossed by vulcanization in a vacuum mould.
Patent GB-1523289-A (GB)
Title: Variable conjugate optical system
IPC: G03B27/52
Filed: 1975-10-15
Abstract: 1523289 Optical projection; photo-copiers XEROX CORP 15 Oct 1975 [11 Nov 1974] 42236/75 Headings G2A and G2J A variable magnification system (e.g. in a photocopier for projecting an image of an original 10 on to a photo-conductive surface 14) comprises a fixed object plane 4, a fixed image plane 6, a lens L and a double reflector e.g. roof reflector 20 to deflect the optical axis 8 and which is movable along a path which bisects the deflection so that the axis 8 is varied in length and held from lateral and angular displacement. The lens L may also be movable. The deflection may be 90 degrees. In a modification Fig. I (not shown) the plane reflector 28 is replaced by another roof reflector acting in a similar way to 20 above.
Patent GB-1456368-A (GB)
Title: Organotin compounds
IPC: C08L27/00
Filed: 1973-09-10
Abstract: 1456368 Organotin stabilizers for resins ALBRIGHT & WILSON Ltd 29 Nov 1973 [29 Nov 1972 10 Sept 1973] 55042/72 and 42451/73 Heading C3P [Also in Division C2] Halogen-containing resins, especially plasticized or rigid PVC, are stabilized by incorporation therein of 0À01-10% by weight of at least one compound of formula where a is 0 or 1; x, x<SP>1</SP>, y and y<SP>1</SP> are each 1-6 ; R 1 , R 2 , R 6  and R 7  are C 1-12  alkyl, cycloalkyl, aryl or aralkyl groups; R 4  and R 9  are as defined for R 1  &c. or are C 13-21  alkyl, C 2-21  alkenyl or inertly substituted aryl groups; R 3 , R 5 , R 8  and R 10  are as defined for R 4  &c. or -H or at least one of forms a cycloalkyl ring; and X is -O- or -S-, or a composition of such compound with 1-50% by weight of a monoalkyltin tri- (mercaptoglycollate) ester of a C 1-20  alkanol. The composition may also comprise an o-alkylphenol, phosphites, thiophosphites, epoxy compounds (especially butyl epoxy stearate), dibutyltin sulphide or oxide, or dibutyl or dioctyl cyclic mercapto acetates or #-mercapto propionates. Other conventional thermal stabilizers may also be included.