baber/WOPTO huggingface dataset:
Patent GB-185111-A (GB)
IPC: F01D17/00
Filed: 1922-08-18
Abstract: 185,111. Simmen, O. Aug. 24, 1921, [Convention date]. Combined fluid-actuated and electric gears ; electric and magnetic gears; valve spindles and guides.-A lift distributing-valve c of a steamengine is supported by spring blades m1, m2, and is opened or closed by electromagnetic means. The valve c is connected to a dash-pot n, is opened by a coil h, and is closed by the steam pressure in the chest. In a modification, the opening is effected by a spring mounted beneath the dash-pot piston n or by the main-cylinder compression, and closure by a coil h.
Patent GB-912585-A (GB)
Title: Improvements in or relating to a device for spreading granular or powdery material
IPC: A01C15/00
Filed: 1959-01-26
Abstract: 912,585. Powder distributers. VAN DER LELY N. V., C. Jan. 26, 1959 [Feb. 3, 1958], No. 22605/62. Divided out of 912,581. Class 6(1). A device for spreading granular or powdery material comprises an agitator which is coupled eccentrically with a driving member and is provided with resilient arms 20 which may strike the container walls as the agitator rotates. As shown a distributing disc 4 is provided with a stud 10 enclosed by a sleeve 11 which is locked on the stud 10 by means of a pin 12 and is provided with an arm 13 having two similar holes, one of which is used for receiving the end of a rod 19 which carries the arms 20. The rod 19 also carries arms 21, 23 which are made of strip material.
Patent GB-1325791-A (GB)
Title: Flame-resistant high molecular aromatic polyester-carbonates
IPC: C08G64/06
Filed: 1971-04-19
Abstract: 1325791 Chlorocarboinc acid ester-acid chlorides BAYER AG 19 April 1971 [26 Oct 1970] 22651/71 Heading C2C [Also in Division C3] Chlorocarbonic acid ester-acid chlorides of 3- chloro-4-hydroxybenzoic acid, 3,5-dichloro-4- hydroxybenzoic acid, 3-bromo-4-hydroxybenzoic acid and 3,5-dibromo-4-hydroxybenzoic acid are prepared by reacting the acid with phosgene.
Patent GB-742865-A (GB)
Title: Improvements in or relating to methods for synthesizing vitamin a-active material and intermediates thereof
Filed: 1952-09-10
Abstract: The invention comprises 1,1-dialkoxy-3,7-dimethyl - 3,7 - dihydroxy - 9 - (2,6,6 - trimethyl cyclohex - 1 - enyl) - nona - 8 - ene - 4 - yne and the preparation thereof by reacting b -ionone with a propinyl halide, e.g. propargyl bromide in the presence of a metal, such as zinc or magnesium, thereby forming the carbinol 4-methyl-4 - hydroxy - 6 - (2,6,6 - trimethyl cyclohex - 1-enyl) - hex - 5 - ene - 1 - yne, and reacting said ethinyl carbinol with an acetal of b -ketobutyraldehyde. Subsequently the acetylenic 3,7 - diol acetal may be hydrogenated to a 1,1 - dialkoxy - 3,7 - dimethyl - 3,7 - dihydroxy-9 - (2,6,6 - trimethyl cyclohex - 1 - enyl) - nona-4,8 - diene.  The olefinic 3,7 - diol acetal is converted to Vitamin A aldehyde by subjecting successively to dehydration, hydrolysis by means of an ionizable acid and treatment with a basic catalyst or alternatively the conversion may be effected in a single step with a mixture of an organic base and an ionizable acid.  Vitamin A alcohol is obtained by subjecting the olefinic 3,7-diol acetal successively to dehydration, hydrolysis by means of an ionizable acid and treatment with a basic reducing agent.  The ethinyl carbinol is condensed with an acetal of b -ketobutyraldehyde by means of a Grignard reaction.  Examples describe the production of Vitamin A alcohol and aldehyde starting with b -ionone.
Patent GB-254560-A (GB)
Title: Improvements in means for locking doors
IPC: E05C19/00
Filed: 1925-09-11
Abstract: 254,560. Hobbs, Hart, & Co., Ltd., and Peberdy, T. W. Sept. 11, 1925. Escutcheons; staples for locks; preventing release by destruction.-Door locks are protected by a removable cover plate or bar a provided with hooks c to fit into recesses in plates fixed on the door and with other hooks f to fit over projections k on the striking plate h when the bar a is placed in position over the closed door and slipped down until both pairs of hooks engage. When the bolt is shot by the key into the slot j its lower edge engages the upper edge of plate d fixed at right-angles on the bar a, thus preventing the bar a from being slid up and removed. A depression q in the striking plate h receives the plate d. The plate d is provided with a slot e to engage a dog m on a plate n fixed to the edge of the door when the bar a is slid down. A depression l is formed in the striking pLate to allow the dog m to pass when the door swings inwards. A projection g on the bar a protects the bolt.
Patent GB-1337870-A (GB)
Title: Polymeric mordants in photographic materials
IPC: G03C8/56
Filed: 1971-04-19
Abstract: 1337870 After-treatment of styrene polymers AGFA-GEVAERT AG 19 April 1971 [28 Feb 1970 22 Jan 1971] 22708/71 Heading C3P [Also in Division G2] Polyvinyl acetophenone is prepared by adding anhydrous aluminium chloride to polystyrene dissolved in anhydrous tetrachloroethane and adding dropwise acetic acid anhydride dissolved in tetrachloroethane. The correspondinq guanyl hydrazone is prepared by adding aminoguanidine bicarbonate to polyvinyl acetophenone dissolved in dioxane and glacial acetic acid at 90-100‹ C. then adding zinc granules after adding water/glacial acetic acid, and precipitating by pouring into aqueous sodium hydroxide solution. Polyvinyl propiophenone is prepared as for polyvinyl acetophenone but using propionic acid anhydride instead of acetic anhydride. The corresponding guanyl hydrazone is prepared similarly to the guanyl hydrazone above without the use of zinc granules. Polyvinylbutyrophenone and its guanylhydrazone are prepared similarly. The methyl ketone of a styrene-2-methylstyrene copolymer (MW 10,000) is prepared by acylating the copolymer with anhydrous aluminium chloride and acetic acid anhydride. The corresponding guanylhydrazone is prepared by treatment with aminoguanidine. A vinyl acetate-n-acetylated styrene copolymer is prepared by acylating the copolymer. The corresponding guanyl hydrazone is prepared by reaction with aminoguanidine.
Patent GB-250819-A (GB)
Title: Manufacture of diarylamines
Filed: 1925-09-11
Abstract: 250,819. Imray, O. Y., (Soc. of Chemical Industry in Basle). Sept. 11, 1925. Nuclear substitution products of diphenylamine are prepared by causing a nuclear halogen substitution product of a benzene hydrocarbon to act on an alkali-metal compound of a primary aromatic amino-body of the benzene series, if desired in presence of a catalyst, either one or both of the reacting substances containing at least one nuclear substituent in addition to the halogen atom or amino group. In an example, o-o<1>-ditolylamine is obtained by heating o-toluidine with sodium and o-chlortoluene in the presence of copper powder as a catalyst. In a similar manner, o-tolylphenylamine may be obtained from ochlortoluene and aniline or from o-toluidine and brombenzene, o-p-ditolylamine from p-chlortoluene and o-toluidine, and 4<1>-chlor-o-o<1>-ditolylamine from 2: 5-dichlortoluene and o-toluidine.
Patent GB-423293-A (GB)
Title: Improvements in rotary liquid pumps and motors
IPC: F04C2/10
Filed: 1934-08-08
Abstract: 423,293. Hydraulic transmission of power. POLLAK, J. E., 20, Holborn, London. -(Gulf Research & Development Corporation; Gulf Building, 7th Avenue, Pittsburg, U.S.A.) Aug. 8,1934, No. 22957. [Class 69 (ii)] [See also Group XXVI] A rotary engine or pump of the type illustrated has an outer ring 8 provided with one more tooth 9 than the number of teeth 15 on an inner pinion 14, and a passage 13 between each pair of teeth 9. The upper abutment 23 has its edge 48 so positioned that liquid trapped between meshing teeth 9, 15, is not put under further pressure. As a pump, the quantity of liquid delivered is varied by sliding axially a member 22, Fig. 5, which embodies the abutments 23, 24. The member 22 contains a pilot valve 36, attached to a handle 40, and is provided with a piston 39 which normally covers a port 32 leading to a chamber 28 on the left-hand side of the pump end plate 26. A port 31 communicates with fluid on the delivery side 12, and ports 33, 45, and passage 44, are open to the suction side of the pump. By moving the piston 39 to the right, pressure fluid is admitted to the chamber 28 and tends to force the end plate 26 and the member 22 also to the right, and thus move the ring 8 into fuller mesh with the pinion 14. The reverse movement of member 22 is secured by a leftward movement of piston 39, which places the chamber 28 into communication with the suction side 11. A chamber 29 at the rear end of the member 22 communicates with the suction side by way of the passage 44. A key 221 is provided to prevent the turning of the member 22 within the casing, but allows axial movement of the same. When the pump is dealing with oil, oil from the bearings is led back to the suction side by way of passages 46, 47. A constant volume pump is described in which the part 22 is not slidable. The latter may be used as a motor in a variable speed transmission, being coupled up in series with a variable volume pump.
Patent GB-207262-A (GB)
Title: Improved process of and apparatus for producing electrical discharges in vacuum tubes
IPC: H05G1/14
Filed: 1922-08-23
Abstract: 207,262. DÚguisne, C., and Dessauer, F. Aug. 23, 1922. R÷ntgen-ray and like apparatus.-The electrostatic stresses on the wall of a R÷ntgen-ray, canal-ray, or other vacuum tube are minimized by arranging auxiliary electrodes inside or outside the tube and imparting intermediate potentials thereto. The invention is shown applied to a R÷ntgen-ray tube 3, Fig. 1, the main electrodes 10, 11 of which are supplied from a transformer of the type described in Specification 135,528, the total fall of potential being 420 kilovolts. Three auxiliary electrodes 7, 8, 9 are employed, of which the central electrode 9 is connected to the central point 6 of the transformer and to earth. The electrodes 7, 8 are connected to points 4, 5 of the transformer secondary winding at which the potential above or below earth is 105 kilovolts, each main terminal being 210 kilovolts. The potentials of the auxiliary electrodes may alternatively be maintained by a number of condensers 12, Fig. 2, connected in series across the secondary winding of an auxiliary transformer 13. The auxiliary electrodes may consist of short arcs of circles inside the tube connected to external metal hinges, which are mounted on highly insulating rods or tubes. The auxiliary electrodes are deprived of gas, and may be of tungsten; they are shaped to prevent electric discharges therefrom, and may be arranged opposite layers of insulating-material.
Patent GB-703577-A (GB)
Title: Improvements in or relating to mountings for wind motors
IPC: F03D1/00
Filed: 1951-10-03
Abstract: 703,577. Wind-motors. FOLLAND AIRCRAFT Ltd., VINCENT, H. E., and RUCKLEY, A. L. Oct. 2, 1952 [Oct. 3 1951] No. 23060/51. Class 110 (3) A mounting for a wind motor comprises a tripod one leg 13 of which lies in the vertical plane containing the motor axis and is mounted on a vertical pivot 15, 16 at its lower end whilst the other two legs 10 have wheels or rollers 17 at their lower ends and run on a circular track 18 concentric with said vertical pivot. the legs 10 are disposed in a common vertical plane whilst the leg 13 is disposed in a vertical plane normal thereto. The legs 10 are interconnected at their upper ends at 11 and are connected at their lower ends by a beam. The legs 10, 13 are connected by a quick releasable coupling, such as a pin connection, to a head 14 comprising a pin 19, a cowling 21 and a frame 22; the centre of gravity of the-head 14 being in tne plane of the legs 10. The wind motor comprises sails 23 mounted on a shaft 24 driving, through a gearbox 25, an electric generator 26, the output of which is taken through slip rings concentric with the turntable 16. A power operated winch is mounted in the head 14 For operation on a cable passing, over a pulley supported between the legs 10 in order to raise or lower said head.
Patent GB-341839-A (GB)
Title: Improvements relating to lever fasteners for suspender bands, brace webbing and other bands, straps and the like
IPC: A41F11/12
Filed: 1930-01-30
Abstract: 341,839. Lever clips. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Birmingham. Jan. 30, 1930, Nos. 23193 and 19416. Divided on 341,289. [Class 44.] In a clip for fastening webbing, straps &c. but particularly described as applied to the adjustable band of a stocking suspender, the lever limb 6 is inclined at an acute angle to the operating limb 1 so that a flat face of limb 6 clamps the main portion of the band 3 against an upstanding seating, the edge of limb 6 passing over or co-operating with a shoulder adjacent to the seating. As shown in Figs. 1, 2, the lever is pivoted on the upper bar 2 of a loop and the end of the band 3 is secured to the device by an attachment plate 5, one edge of which is curled round the lower bar 4 of the loop to provide the shoulder 9 which is just cleared by the edge of lever-arm 6. Plate 5 is bent to channel form and compressed to grip the end of band 3, the upstanding portion 8 of the plate providing the seating. Fig. 3 shows a form in which the plate 5 is flat and soldered to the lower bar 4 of the loop which provides the shoulder, the parts 4, 5 being enclosed by the end of band 3 which is secured by stitching. A modification is described in which the lever is pivoted between lugs upstanding from a back-plate which forms the seating and is cranked to provide the shoulder, the end of the band being passed through a slot near the lower end of the plate and secured by stitching. Further modifications are described in which the lever is pivoted between lugs integral with a channelled plate generally resembling that shown in Fig. 1, various ways of forming the plate being illustrated.
Patent GB-447715-A (GB)
Title: An answer-back device for telegraph systems
IPC: H04L12/06
Filed: 1935-08-06
Abstract: 447,715. Telegraph exchange systems. KLEINSCHMIDT, E. E., 333, North Michigan Avenue, Chicago, U.S.A. Aug. 6, 1935, No. 23201. [Class 40 (iii)] In a telegraph system a part of the complete address (or number) of each subscriber of a group of subscribers is permanently set up on an associated answer-back apparatus which incorporates for each subscriber of the group a relay operating, when a call has been established, to complete the setting up of the address of the called subscriber and to control the transmission of the complete address of the desired subscriber to the calling subscriber as a confirmation of the correct establishment of the connection. When the connection has been established through a final selector, relay 672, energizes and operates armature 673 to release a distributer arm 671 which passes over a group 690 of segments connected according to the character " WORD-SPACE " and groups 691 to 694 of segments which are selectively and permanently connected according to a part of the name (or number) of all subscribers of the group with which the final selector is associated. The final portion of the address is set up on the segments of the group 695 by the selective connection of the armatures of a relay 624 associated with the. called line and energized with the relay 672 when the connection has been established. At the end of the transmission of the address to the calling subscriber, the arm 671 is stopped by engagement with the long portion 677a of the armature 673 and is released to move to its second stop position when the relay 672 releases on the termination of the connection.
Patent GB-615765-A (GB)
Title: Double clutch
IPC: F16D21/06
Filed: 1946-08-06
Abstract: 615,765. Friction clutches. ATWOOD, S. B., and ATWOOD, J. T. Aug. 6, 1946, No. 23308. [Class 80 (ii)] In a clutch of the type in which a back plate 8 is combined with a fly-wheel 7 and houses a pressure plate 17 and clutch discs 12, 13 secured to shaft 9 and quill 10 respectively, the pressure plate is actuated indirectly by lever means 41. The quill 10 may be connected to the shaft 9 by reduction gearing so that a direct drive to the shaft 9 is effected on engagement of clutch disc 12 and a low ratio drive is effected on engagement of clutch disc 13. The rear end of a sleeve 55 carrying a throw-out collar 57 has a splined connection with a sleeve 52 which is welded to a flange 53 on the back plate and the front end carries rollers 63, 64 which engage guide track surfaces 65 on the radial inner sides of lugs 42 formed on the back plate. Circumferentially spaced studs 31 mounted on the rim of the pressure plate 17 are adjustably secured to the peripheral flange of a cupped ring 33. Rings 35, 36 are disposed each side of the member 33 and are forced together by springs 37 on circumferentially spaced bolts 39 in a retaining ring 38. Two studs 80 are riveted to the ring 35 at circumferentially spaced points 180 degrees apart and have sliding contact with holes in rings 33, 36. Similar studs riveted to the ring 36 engage holes in the members 33, 35. Levers 41 are mounted on spindles 43 between the lugs 42 and each lever has a forked arm 44 carrying a roller 47 which engages a recess between rings 35, 36, and arms 45, 46 which engage the rollers 63, 64. The pressure plate 17 has sliding driving connection with the back plate 8 by means of studs 24 secured to the back plate at circumferentially spaced points. The pressure plate 17 also has sliding engagement with circumferentially spaced bolts 26 secured to the back plate, and springs 29, 30 maintain the pressure plate in the neutral position. A collar 60 secured to the sleeve 52 limits movement of the sleeve 55 away from the fly-wheel. In operation, initial movement of the throw-out collar 57 to the right causes the roller 64 to engage the arm 46 of the lever 41, thus turning the latter anticlockwise. This produces movement of the rings 33, 35, 36, 38 and pressure plate 17 to the left, and further movement of the throwout collar 57 causes the ring 35 to move away from rings 33, 36 compressing springs 37 and thus increasing the pressure between the clutch plate 12, fly-wheel surface 18 and pressure plate surface 19. Movement of collar 57 to the left causes engagement of the clutch plate 12 with the back plate surface 20 and pressure plate surface 21 in a similar manner. Lubricant may be supplied to the throw-out collar bearing 85 through the nipple 86, and ducts 88, 89, 91 are provided in the sleeve 55 for the passage of lubricant to the rollers 63, 64 and levers 41. In a modification, each of the rollers 63, 64 is made in three parts, the end two co-operating with the track surfaces 65, and the centre one for engagement with the lever 41.
Patent GB-656206-A (GB)
Title: Improvements connected with rests for cycles and the like
IPC: B62H1/02
Filed: 1949-09-02
Abstract: 656,206. Cycle supports. MIRECKI, A. Sept. 2, 1949, No. 23313/48. [Class 136 (i)] In a folding cycle rest of the type consisting of a pair of plates 1, 2 clamped together by a bolt 4 passing between the cycle rear forks 3 near the bottom bracket, the lowermost plate 2 having an offset depending lug 7 to which is pivoted a stay 8 and a spring 12 retaining the stay in either a vertical or horizontal position, the plates 1, 2 have projections 5, 6 for location between the forks 3. The stay 8 has an extensible member 15 slidable in a groove 16 and locked in adjustable position by a screw 18.
Patent GB-838769-A (GB)
Title: Process for the preparation of diborane
IPC: C01B6/10
Filed: 1958-07-21
Abstract: B2H6 is obtained by reacting a boron halide, or an etherate thereof, with KBH4 in an inert liquid medium in the presence of 0.1 to 1.0 mol. of a metal halide per mol. of borohydride.  BF3 or BCl3 may be used in the absence of O2 and moisture at 15-100 DEG  C.  Inert liquids are ethers, e.g. diethyl ether, diethylene glycol, dimethyl ether, tetrahydrofuran, or dioxan.  The halide should be of a metal having an electrode potential below +2.0 volts, e.g. chlorides of zinc, aluminium or tin.
Patent GB-615693-A (GB)
Title: Improvements in operating mechanism for yokes for animals
IPC: A01K1/06
Filed: 1946-08-06
Abstract: 615,693. Animal pens. AGRICULTURAL SUPPLIES (CAMBRIDGE), Ltd., SMITH, M. B. and HANCOCK, A. Aug. 6, 1946, No. 23346. [Class 20(i)] An animal feeding stall comprises a yoke one part 7 of which is fixed and the other 9 is pivotally mounted, the latter being coupled by a link 13 to an operating lever 14, the far end of which is outside the stall and has a locking device 17 to engage any one of a series of openings in a locking plate 18. the opening corresponding to different degrees of closure of the yoke. The stall may be incorporated in an animal pen provided with a feed gate opening to the stall.
Patent GB-184080-A (GB)
Title: Apparatus for the prevention of railway collisions
IPC: B61L3/18
Filed: 1921-09-02
Abstract: 184,080. Berger, L. Sept 2, 1921. Electrical systems, automatic; track apparatus actuating signals on and for stopping trains.-In an automatic electric system, electromagnetic switches actuated by current from the train passing along track wires are situated at the ends of sections and connect adjacent sections when trains are therein. The trains are then in electric connection, and bell or the like signals on each train are operated and the brakes may be applied. The electromagnetic switches comprise sliding contacts 6a, 6b actuated by solenoids 2<a>, 2b to connect track wires 16, 17 when both solenoids are energized. Each solenoid is situated at the end of its section, and is energized through leads 18, 19 from batteries 22 carried on each train. When the leads 16, 17 of adjacent sections are connected by two trains therein, a circuit is completed, including a battery 27 and a bell or like signal 26 on each train. A telephone 28 may be included in the circuit, and a solenoid may be used to apply the brakes.
Patent GB-955504-A (GB)
Title: Penicillins
Inventor: CALAM CHRISTOPHER TOWERS
IPC: A61K31/43
Filed: 1960-07-05
Abstract: Relates to penicillins of the formula: <FORM:0955504/C2/1> wherein R1 stands for an aryl or substituted aryl radical, wherein R2 stands for an alkyl radical, wherein R3 stands for hydrogen or an alkyl radical, or wherein R1X and R2 are joined to form, together with the adjacent carbon atom, an oxygen- or sulphur-containing heterocyclic ring, or wherein R2 and R3 are joined to form, together with the adjacent carbon atom, a carbocyclic ring, and wherein X stands for an oxygen or sulphur atom, and the salts thereof, provided that, when R1X stands for the phenoxy radical and R3 stands for hydrogen, R2 does not stand for the methyl radical, such as a (p-chlorophenoxy)-, a (p-ethylphenoxy)-, a (o-methoxyphenoxy)-, a (p-t-butylphenoxy)- and a (p-phenylphenoxy)-isopropylpenicillin, 2-(p-chlorophenoxy)-2-n-butylpenicillin, coumaranyl-2-penicillin and tetrahydro-2-furylpenicillin.  The penicillins may be produced by acylation of 6-aminopenicillanic acid with an appropriate acylating agent.  Pharmaceutical compositions comprising as active ingredient one or more of the penicillins or a salt or salts thereof in admixture with an inert non-toxic diluent or carrier are suitable for oral, parenteral or topical administration and may be in the form of tablets, granules, capsules, dispersible powders, solutions, suspensions, emulsions or ointments.  Specifications 877,120, 878,233, 891,279 and 897,046 are referred to.