baber/WOPTO huggingface dataset:
Patent GB-177443-A (GB)
Title: Improvements in valve
IPC: F16K43/00
Filed: 1921-06-10
Abstract: 177,443. Brassington, W. B. June 10, 1921. Valves fitted with independently actuated supplementary valves.-The seating 15 for a screwdown valve 33 is provided in a longitudinally movable sleeve 10 which is adapted to form a closure either above or below the usual partition 6 in the valve casing. Fluid flow may thus be cut off while the screw-down valve is removed for repairs. The partition is provided with bevelled seatings 8, 9 above and below, which co-operate with closure surfaces 11, 12 on the sleeve 10. The sleeve is closed at the lower end and provided with a partition 13 having a central aperture 14 provided with a raised seating 15. Lateral apertures 16, 17 are provided for the passage of fluid through the sleeve. The sleeve is made in two portions which are screwed together for convenience in assembling, and the part 21 is formed separately from the casing 1. The upper end of the sleeve is screwed to receive a plug 26, which is secured by a screw 27. This screw is provided with a flattened portion, so that by a partial unscrewing, pressure fluid may be released from the casing when the valve is dis-assembled. The main valve spindle 31 is secured to the valve head 33 by a screwed sleeve 38 which permits relative rotation. When the main valve is to be removed for repairs, the sleeve 10 is unscrewed until the closure surface 11. engages with the seating 9. Packing 24, 39 is provided to maintain tightness around the sleeve and vaive spindle respectively.
Patent GB-1337636-A (GB)
Title: Cup for dental waste
IPC: A61C19/00
Filed: 1971-05-20
Abstract: 1337636 Refuse receptacles BILA CUP AB 20 May 1971 [29 May 1970] 16151/71 Heading A4A A conical plastics beaker is adapted for cleaning dental instruments by having at its rim a flange 12 in which raised hollow portions 14, 15, articles are formed in pairs by vacumm moulding, define between them a V- or U-shaped recess 22 used to remove waste from an instrument. In another embodiment Fig.4 the raised portions of adjacent pairs are merged together. The beaker is intended to rest on an annular support.
Patent GB-1107714-A (GB)
Title: Hydraulic power transmission
Inventor: LAMBETH DENNIS ERNEST
IPC: F16H39/08
Filed: 1964-04-18
Abstract: 1,107,714. Hydrostatic transmissions. DOWTY TECHNICAL DEVELOPMENTS Ltd. 13 April, 1965 [18 April, 1964], No. 16186/64. Heading F2C. An hydraulic power transmission comprises a tilting head pump 4 and motor 2 mounted on a support maintaining the parallel tilting axes MT, PT and the drive shafts 1, 3 in fixed relative positions, a link 7 being pivoted at MP, PP to extensions 8, 9 of the motor and pump. The pump is tilted from a dead centre position, wherein axes MP, PP, PT lie in a plane, angle PP, PT, MT is acute and distance MP-PT is greater than MT-PT, by a servo 11 and thus tilts motor 2. In this dead centre position the pump displacement is zero and motor displacement is maximum and the quadrilateral linkage MP-MT, MT-PT, PTPP, PP-MP is such that initial movements of pump 4 to either side of the dead centre position for forward and reverse drive, produces very small movements of the motor. The servo 11 normally has limited movement to prevent the motor reaching a dead centre position with axes MT, MP, PP in a plane, but should it be necessary for the motor to reach this position then a second servo acting on the motor is provided. The pump may have its zero displacement position not coinciding with the dead centre position so that the forward speed ratio may be greater than the reverse ratio. The link 7 may be a pair of rods housing the hydraulic connection between the pump and motor. In Fig. 3, (not shown), the linkage is as in Fig. 2, but the shafts 1, 3 are parallel. In Fig. 5, (not shown), the shafts are parallel with the angle PP, PT, MT obtuse as it is in, Fig. 7, (not shown), wherein the distance PTMP is less than MT-PT and the shafts 1, 3 are at right angles. The pump on motor, Fig. 8, (not shown), has an annular flange on the drive shaft having sockets for ball joints on the ends of pistons slidable in a block rotatably mounted in a head which can pivot relative to the flange. Reference has been directed by the Comptroller to Specifications 978,603; 979,532; 994,794 and 994,797.
Patent GB-1237611-A (GB)
Title: Moving minute dropout counter
IPC: G01R33/12
Filed: 1969-03-27
Abstract: 1,237,611. Recording and playback; counting apparatus. MINNESOTA MINING & MFG. CO. 27 March, 1969 [28 March, 1968], No. 16195/69. Headings G4D and G5B. A running measurement of the number of dropouts in a recording 10 occurring in a predetermined unit time is made by apparatus comprising pulse generating means 18-40, producing from the dropouts intermediate pulses of common amplitude and duration, and integrating means for storing, in a capacitor 58 as shown, a variable charge which is increased by a predetermined charge in response to each of the intermediate pulses and which is dissipated to a minimum charge level over a time interval equal to the predetermined unit time. As shown, a meter movement 80 controls a pen recorder to chart the charge level on the capacitor 58. The absolute number of dropouts is recorded by a counter 34. The apparatus counts only dropouts attaining predetermined signal loss and duration.
Patent GB-458159-A (GB)
Title: Improvements in or relating to sculpturing apparatus employing stereoscopic photographic negatives
IPC: G03F7/00
Filed: 1935-06-15
Abstract: 458,159. Photographic statuary reproduction. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Nippon Kogaku Kogyo Kabushiki Kaisha ; 5447, Oi Morimaye-cho, Shinagawa-ku, Tokio) June 15, 1935, No. 16211/36. Divided out of 458,128 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 8, 1936. [Class 98 (ii)] In apparatus for sculpturing by stereoscopic observation of a photographic negative as described in Specification 458,128, the mark is driven spirally to trace the contour of either vertical or horizontal sections of the stereoscopic virtual images and also, when necessary, in a plane parallel to the axis of the spiral rotations. A binocular d in a camera c views the stereoscopic negative and observes the image of the mark o in mirrors b. A motor m drives either of the shafts 1, 2 through a clutch g. The shaft 1 drives a table 6 carrying the material to be shaped through a bevel gear 5, and a vertical shaft 10 bv means of the transverse horizontal shaft 7. The shaft 10 is screwthreaded and supports the frame 9 for the sculpturing tool 8. The other end of the shaft 1 drives a vertical shaft 12 and gear wheels 13, 16, the wheel 16 being loosely mounted on a screw threaded tube 15 carrying the mark holder 14. A hand wheel 22 controls the horizontal and radial movements of the mark o through gears 23, 25, 27, 29 and shafts 24, 26, 28, 30. One end of the shaft 2 drives the vertical shaft 17 and the other end drives the vertical shaft 19. Supporting a gear wheel in contact with another gear wheel in screw engagement with the shaft 15. When the motor m drives the gear 13 the wheel 16 is rotated and the mark moves in a spiral. When the shaft 19 is rotated, the mark moves only in a vertical direction. Corresponding movement of the sculpturing tool is produced by the vertical shafts 10, 17 and the table 9. The radial movement of the tool 8 is produced by a rack in engagement with a wheel on the shaft 24 which is directly controlled by the hand wheel 22.
Patent GB-474092-A (GB)
Title: Improvements relating to shock absorber struts, shock absorbers for vehicles, and the like
IPC: F16F9/48
Filed: 1936-06-10
Abstract: 474,092. Shock - absorbers. DOWTY, G. H. June 10, 1936, No. 16231. [Class 108 (iii)] An oleo-pneumatic shock-absorber comprises a pair of cylindrical members A, B, the upper A sliding closely within the lower and having, within or forming its inner end, an annular piston R adapted to displace liquid from the lower cylinder B against the pressure of air in the upper cylinder, a hollow cylindrical stem E fixed to the lower cylinder and passing through the piston, and an externally-adjustable restricting device between the interior of the lower cylinder and the interior of the stem. On compression of the shock-absorber, liquid is forced from the cylinder B through apertures H, G, I in the restricting device, up through the stem E, and into the member A thus further compressing the air. Upon re-extension of the shock-absorber, the liquid returns along the same path. At the end of the stroke, however, a flange M on the stem enters a cylindrical depression L in the piston R against the action of a spring O and forces the liquid trapped in the depression to leak away, the recoil thus being damped. The restricting device consists of a plug J screwed into a bolt F in which the apertures H, I are formed and which serves to secure together the cylinder B and stem E.
Patent GB-254716-A (GB)
Title: Method and machine for the production of piston rings
Filed: 1926-06-28
Abstract: 254,716. Teves Maschinen-und Armaturenfabrik Ges., A. July 3, 1925, [Convention date]. Rings.-Piston-rings are manufactured at one setting in a lathe by operating on a cast tubular work-piece so as to turn it internally and externally, face the front edge, chamfer the inner edges, and cut off the ring, which is then ready for grinding, hammering and slotting. The cast tubular work-piece 2. Fig. 3, which may be rough or previously machined, is inserted in the hollowspindle of the lathe and is advanced after each ring has been cut off by a slide 39 cam-operated at 37, another cam 40 serving to open and close the chuck through a lever 41. The inner and outer peripheries of the ring are turned by two roughing tools 5, 6, Figs. 4 and 6, and two finishing tools 7, 8, each pair of tools being mounted on a double slide-rest 9, 10 so as to be adjustable to the thickness of ring required. Each slide-rest is separately fed axially by levers 11 - - 14 and cams 17, 18. The ring is cut off by a tool 19<1> carried by a lever 19 operated from a cam on the shaft 15, and is faced on the outer edge by a tool 21<1> operated by a lever 21 and cam 22. The inner edges of the ring are chamfered by a tool 23<1> which acts just before the ring is completely severed and is carried by a lever 23 secured to a shaft 27 which is rocked by a lever 28 and cam 29 and is moved axially by a lever 26 and cam 24. The cam-shafts 15, 16 are rotated by a worm-shaft 30 which also drives the cam 37 directly.
Patent GB-1502705-A (GB)
Title: Dicarboxylic acids which contain heterocyclic rings and process for their manufacture
IPC: C07D233/78
Filed: 1976-04-22
Abstract: 1502705 Imidazolidine-4,5-dione dicarboxylic acid derivatives CIBA-GEIGY AG 22 April 1976 [23 April 1975 12 Feb 1976] 16288/76 Heading C2C [Also in Division C3] Dicarboxylic acids and dicarboxylic acid derivatives which contain an imidazolidine-4,5- dione ring, of the Formula I wherein X represents nitrile, carboxyl, chlorocarbonyl, phenoxycarbonyl or alkoxycarbonyl containing 1 to 10 carbon atoms in the alkoxy moiety; R represents unsubstituted or substituted alkylene containing 1 or 2 carbon atoms in the chain, cyclohexylene, phenylene or benzylene, the methyl group of which is attached to the nitrogen atom; each of R<SP>1</SP> and R<SP>2</SP> independently represents hydrogen, alkyl of 1 to 18 carbon atoms, cycloalkyl containing 5 to 8 ring members, phenyl, or together they represent tetramethylene, pentamethylene, hexamethylene or heptamethylene, with the proviso that, if R represents phenylene, R<SP>1</SP> is a hydrogen atom and R<SP>2</SP> is alkyl of 1 to 18 carbon atoms or cycloalkyl containing 5 to 8 ring members, are prepared by either (i) reacting a compound of the formula or the disodium salt thereof, with a compound of the formula Y-R-X, wherein R and X are as defined above except that R may not represent phenylene, and Y represents chlorine or bromine, or (ii) chlorinating a dicarboxylic acid of the invention, wherein R is other than phenylene, and reacting the resulting dicarboxylic acid chloride with phenol to give the diphenyl ester, or (iii) catalytically hydrogenating a compound of the formula wherein X is nitrile, phenoxycarbonyl or (C 1 - C 10 ) alkoxycarbonyl; R<SP>3</SP> is (C 1 -C 17 ) alkyl, R<SP>3</SP> or R<SP>4</SP> is hydrogen or R<SP>3</SP> and R<SP>4</SP> together represent (C 4 -C 7 ) alkylene, to give a compound of the invention wherein R is phenylene; R<SP>1</SP> is hydrogen and R<SP>2</SP> is (C 1 -C 17 ) alkyl or (C 5 -C 8 ) cycloalkyl. The novel compounds may be used in the preparation of polyesters.
Patent GB-238668-A (GB)
Title: Improved body for baby-carriages
IPC: B62B9/12
Filed: 1924-07-10
Abstract: 238,668. Mort, C. E. July 10, 1924. Perambulators.-In perambulators of the kind having a detachable front portion carrying the front seat, the joint 6 is formed with flat smooth surfaces without overlap or grooves and the walls of the fixed or detachable portion 1, 7 at the joint are flush on each side. The two portions may be secured together in known manner, for example by a spigot 18, Fig. 4, carried by a plate 17 and engaging a socket on the fixed portion 1 and by a hinged clasp 19. A beading 10 may be provided at the joint and another beading 13 provided as shown to secure symmetrical appearance of the body, or lining may be employed in the usual way.
Patent GB-735212-A (GB)
Title: Firegrate assembly
Inventor: ASHBY GEORGE NEVILLE
IPC: F24B1/193
Filed: 1953-06-17
Abstract: 735,212. Grates. OUZLEDALE FOUNDRY CO., Ltd. April 7, 1954 [June 17, 1953], No. 16665/53. Class 126. The grate of a fire-grate assembly is supported by one or more elements placed in bores provided in the fire-grate front for a gas ignition tube. The front 10 of an all-night-burning grate, Fig. 1, has a gas ignition tube 17 resting in bores at the ends of the front. The grate 13 has inverted U-shaped lugs 14 at the front which fit over the gas ignition tube 17 to support the front of the grate 13. The rear of the grate is supported by vertically-adjustable legs 15. The gas ignition tube 17 may be replaced by studs fitting into the bores at the ends of the grate front.
Patent GB-293417-A (GB)
IPC: C14B1/24
Filed: 1928-06-08
Abstract: 293,417. Soc. Anon. des Anciens Etablissements C. et E. Chapal FrÞres et Cie. July 6, 1927. Void [Published under Sect. 91 of the Acts]. Furs.-In a fur-shearing machine, the furs carried by a traveling belt 1 are held in position contiguous to the rotary knife 6, and while passing over the roller 4, by a number of endless cords 14 passing over rollers 7, 9.
Patent GB-1023352-A (GB)
Title: Refrigeration process
Inventor: PERVIER JAMES WILLERS
IPC: F25B9/00
Filed: 1963-04-29
Abstract: 1,023,352. Refrigerating; cold separation of gas mixtures. AIR PRODUCTS Ltd. April 23, 1964 [April 29, 1963], No. 16695/63. Headings F4H and F4P. A refrigeration process comprises expanding a first stream of highpressure gas with the performance of work in a first zone, warming a second stream of relatively cold compressed gas with the effluent of the first expansion zone, expanding the warmed second stream with the production of work in a second zone and utilizing the refrigeration of the effluent of the first and second expansion zones. As shown, the refrigeration process is employed in a plant for the liquefaction and separation of the components of air. A stream of high-pressure nitrogen gas from the condenser portion 21 of a high pressure fractionating column 18 is withdrawn through a conduit 40 and is in part supplied to thd inlet of a turbine 51 via one pass 54 of a heat exchanger 55. The remainder of the nitrogen passes via a conduit 41 to one pass 42 of a heat exchanger 14, where it cools incoming air for the column 18, and thence to the inlet of a second turbine 44. From the latter the cooled gas is either supplied through a line 59 to the second pass 61 of heat exchanger 55 to warm the gas passing to turbine 51 or is supplied to a conduit 45 which also receives gas from the outlet of turbine 51. Nitrogen from conduit 45 and from the pass 61 of heat exchanger 55 is supplied to a line 30 which conveys nitrogen from the top of a low-pressure fractionating column 25 to heat exchanger 14 to cool incoming air. Liquid oxygen accumulating in a pool 29 in column 25 cools condenser 21 and gaseous oxygen is withdrawn from above pool 29 through conduit 35 and passed to heat exchanger 14 to cool incoming air. Liquid nitrogen collecting in a pool 22 beneath condenser 21 is forwarded to the low-pressure column 25 through a line 23 containing a throttle valve 24 and liquid oxygen from a pool 20 is forwarded to column 25 through line 27 and valve 28. Gas for the turbines 44 and 51 may be withdrawn from column 18 by a conduit 70 instead of from condenser 21. Examples of operating pressures and temperatures are given.
Patent GB-237716-A (GB)
Title: Improved process for producing carbon disulphide
IPC: C01B31/26
Filed: 1924-07-11
Abstract: In the production of carbon disulphide from sulphur and carbon at elevated temperature the sulphur is separately evaporated and superheated, and is led to the reaction chamber, in which the carbon is maintained at the temperature of reaction.  To commence the reaction and at other times when necessary, the chamber may be heated externally, or internally, by means of a blast of hot air or electrically.
Patent GB-248983-A (GB)
Title: Automatic potato chip machines
IPC: B26D7/06
Filed: 1925-06-29
Abstract: 248,983. Morrow, F. L. June 29, 1925. Frying-ranges. - In an automatic apparatus for producing chip potatoes, the cooking liquid is contained in a pan which is divided to form a channel by partition means removable to facilitate cleaning; means are provided for circulating the liquid in the channel, for slicing the potatoes, and for removing the cooked chips. The apparatus shown comprises a frame. work supporting the pan 14, Figs. 2 and 5, which is divided into a tortuous channel by a central partition 24 and an outer U- shaped partition 26. The ends 28 of the partitions are rolled and slip removably over posts 29 secured to the pan, the partitions being secured by screws 32 passing through strips 30 secured to their upper edges, the other end of the central partition being secured by a bolt 28 between the inturned parts of the end wall 16 of the pan by a bolt 38. A supplemental U-shaped partition 34 secured by bolts 35 to the partition 26 forms a compartment 36 for the driving mechanism. By removing the screws 32 and bolts 35. 38 all of the partitions may be removed for cleaning purposes. The pan is heated by tubular burners 55 supported on vertically adjustable transverse members 69, in order that the distance between the burners and the pan may be varied. A motor 76 mounted at the end of the apparatus operates, through a worm drive 78. 79, a shaft 73 on which is mounted an impeller comprising blades or paddles 72, by which the cooking-liquid, carrying with it the chips, is caused to circulate along the channel in the pan. The motor also operates, through a cross-shaft 81 geared to the shaft 73, a slicing- device 70 and a removal device 71 for the cooked chips. The removing means comprises a troughlike frame 85 containing an inclined endless belt conveyer 87, the upper end of which passes round a corrugated roller 88, which is driven through chain-and-spracket gearing 91, 92, 93 from the shaft 81. The lower end of the belt is immersed in the fat, and the chips on reaching the belt are .carried up and discharged through a trough-like chute 97, pivoted on the shaft 90 in order that its inclination may be varied. The slicing-means 70, Figs. 13 and 14, comprises a hopper 100 having an inclined wall 101 beneath an opening 113 in which rotate a scroll-knife 105 secured to a holder 106, and a knife plate or disc 112. both mounted on a shaft 109 driven from the crossshaft 81. The lowermost potatoes in the hopper rest on the plate 112 and are engaged by the scroll knife, which lies above an opening 120 of similar form in the plate. The distance between the knife and plate may be adjusted, in order to vary the thickness of the chips by releasing a set-screw which secures the boss 108 of the knifeholder to the shaft 109. The chips fall through the opening in the plate 112 into the circulating stream of fat, and are carried by it along the channel to the belt conveyer 87. by which time they are cooked.
Patent GB-473879-A (GB)
Title: Improvements in envelopes
IPC: B65D27/22
Filed: 1937-06-16
Abstract: 473,879. Envelopes. WATERSTON & SONS, Ltd., G., and COXALL, J. June 16, 1937, No. 16716. [Class 146 (ii)] In an envelope of the kind described in Specification 214,503, [Class 146 (ii)], the upper edges of the ends of the tag, or parts thereof, slope upwards and away from the central part of the tag, making notches which fit against the upper ends of the retaining slots to prevent accidental dislodgment of the tag therefrom by the movement of the contents of the envelope. The tag shown in the Figure has a central portion f, and the ends h slope upwardly to form notches i at the inner ends. The ends h are passed through slits e in the back of the envelope, the notches i fitting against the upper ends of the slits e, and the envelope is sealed for postal transmission at the cheap rate by gumming the closure flap c to the central portion f of the tag. In a modification, the ends h are in alignment with each other, and where they join the central portion f portions are cut away to form notches.
Patent GB-988542-A (GB)
Title: Improvements relating to hydrocarbon separation processes using molecular sieves
IPC: C07C9/14
Filed: 1962-05-02
Abstract: Straight chain hydrocarbons are separated from petroleum fractions boiling above C10, and containing molecular sieve deactivating hydrocarbons (straight chain of C18 or over), by fractionating to obtain a lower boiling fraction substantially free of deactivating hydrocarbons and a higher boiling fraction containing substantially all the deactivating hydrocarbons, and separately contacting each fraction with a 5<\>rA molecular sieve to extract straight-chain hydrocarbons.  The treatment with molecular sieve may be carried out in any suitable manner, the process of Specification 944,441 being preferred.