baber/WOPTO huggingface dataset:
Patent GB-805830-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1955-08-03
Abstract: The invention comprises 21-sulphonated cyclopentanophenanthrene compounds of the general formul  <FORM:0805830/IV (b)/1> and <FORM:0805830/IV (b)/2> wherein R represents a keto or b -hydroxy group and R11 represents an alkyl group, and the preparation thereof by reacting the required 21-hydroxy compound with an alkyl sulphonyl chloride, and in the case of compounds of the general formula A by treating compounds of the general formula B with ethylene glycol or with an ethylenedioxy-yielding compound in an exchange reaction, e.g. in the presence of a strong acid, such as p-toluene sulphonic or sulphuric acid.  The R11 group may be a C1 to C6 alkyl group-preferably the methyl group.  The sulphonation may be carried out in solution in benzene, toluene, tetrahydrofuran, dioxane or a tertiary amine.  The reaction may be carried out at a temperature of about 0 DEG  C. for from 1 to 3 hours.  The above process may be modified in that the required 21-hydroxy compound is prepared by hydrolysing the corresponding 21-acyloxy compound. This process may be further modified in that in the case of 21-acyloxy compounds containing the 3-ethylenedioxy-5-pregnene structure, the 21-acyloxy compound is prepared by the process claimed in Specification 785,686. Suitable ethylenedioxy yielding compounds are ethylenedioxy derivatives of lower aliphatic ketones such as acetone, methyl ethyl ketone or mesityl oxide. The reaction to form the 3-ethylenedioxy derivatives may be effected in an inert solvent such as benzene, toluene, xylene, tetrahydrofuran or dioxane.  In the examples 3,11,20-triketo-17a ,21 - dihydroxy - D 4 - pregnene - 21 - methanesulphonate is prepared by treating cortisone with methanesulphonyl chloride, and 3-ethylenedioxy - 11,20 - diketo - 17a ,21 - dihydroxy - 5-pregnene-21-methanesulphonate is prepared by treating 3,11,20-triketo-17a ,21-dihydroxy-4 - pregnene - 21 - methanesulphonate with mesityl oxide, and by hydrolysing 3-ethylene-dioxy - 11,20 - diketo - 17a ,21 - dihydroxy - D 4 - pregnene 21-acetate to the corresponding 21-ol and then reacting the 21-ol with methanesulphonyl chloride.
Patent GB-775982-A (GB)
Title: Improvements in photosensitive device
IPC: H01L31/14
Filed: 1953-10-08
Abstract: 775,982. Photo-electric devices. DUMONT LABORATORIES, Inc., A. B. Oct. 8, 1953 [Oct. 8, 1952], No. 27691/53. Class 37. [Also in Group XL (b)] An image transducer comprises a pair of juxtaposed photo-sensitive layers, the image being produced on the surface of one layer and a light spot arranged to scan the surface of the other layer, the layers being divided into insulated elemental areas. In Fig. 1, photoconductive layers 12 and 13, each separated into small elemental areas, are separated by a thin opaque conducting screen 17, and contact conducting layers 14 and 16 respectively, which are applied to glass elements 18 and 19. A light spot from the fluorescent screen of tube 27 is arranged to scan layer 12, and the signal image is projected on layer 13. The light spot renders the corresponding portion of layer 12 conducting, so that a current passes through load resistance 21 which is proportional to the conductivity of the corresponding portion of layer 13, and thus to the intensity of the image at that point. Photo-voltaic materials may be used instead of or in conjunction with photo-conductive materials. Masking, shading and modulation effects for television may be produced by controlling the cathode ray beam, and filters may be associated with the elemental areas for colour television systems.
Patent GB-1213107-A (GB)
Title: A collapsible bag provided with a carrying strap
Inventor: FISCHLEIN SVEND AAGE
IPC: B65D5/465
Filed: 1969-06-02
Abstract: 1,213,107. Carrier cartons. S. A. FISCHLEIN. 2 June, 1969 [7 June, 1968; 9 Jan., 1969], No. 27817/69. Heading B8P. A collapsible carrier carton is erected by folding a blank along lines 2-4, Fig. 1, to tubular form, securing the edge of a panel 32a to the edge 1 of a panel 31, and folding-in flaps 34, 34a; 36, 36a to make the top and bottom, Figs. 2, 3, of the carton, panels 33, 33a; 35, 35a with diagonal fold lines 13, 14 &c. remaining in the planes, of panels 31 &c. to leave slots through which a carrier strap 25 is passed. The strap 25 is closed and passes around the outside of the bottom panels 36, 36a to support the weight of the carrier contents. When the carrier carton has been set down and the strap 25 released, the top panels 34, 34a may be flipped open, to reach the inside of the carrier. The carton may be inverted, the top becoming the bottom &c. In a modification, slots (27), Fig. 4 (not shown), are provided in fold lines 5, 7, 9, 11, Fig. 1, for the strap 25. The blank may be made of leather, plastics, paperboard &c. impressed with fold lines, or constituting separate panels secured to a layer of suitable foldable material.
Patent GB-1260543-A (GB)
Title: Improvements in or relating to secondary electron multipliers
IPC: H01J43/20
Filed: 1969-06-02
Abstract: 1,260,543. Electron multipliers. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 2 June, 1969 [31 May, 1968], No. 27831/69. Heading H1D. An electron multiplier comprises a glass or ceramic base 26, Fig. 3, having two sets of inclined surfaces, one set 27 being coated with secondary emissive material on a metal substrate and alternating with the other set 28 which is coated with resistive material. In operation a potential source 35 is connected across the series combination of emissive coatings and resistive coatings, and the surfaces are preferably so arranged that electrons emitted from one emissive surface impinge normally on the succeeding emissive surface. The emissive surfaces may be of magnesium oxide or potassium chloride and, as shown, are preferably longer than the resistive surfaces.
Patent GB-326753-A (GB)
Title: A variable speed and reversing epicyclic gear
IPC: F16H3/44
Filed: 1929-09-13
Abstract: 326,753. Gribojedoff, N. Oct. 1, 1928, [Convention date]. Variable-speed and reversing gearing comprises an epicyclic train with a sun-gear 2 fast on driving-shaft 1, an internal gear 3 fast on driven shaft 3<1>, and planet-gears composed of freelyrotatable toothed discs 5 interleaved with plain friction discs 8 keyed upon spindles 6 in a planetcarrier 7. Forward driving at different speeds is obtainable by clamping the discs 5, 8 together from a control lever 16 so as to allow varying amounts of slip. Oil passes through ports 19 in the hollow spindles 6 and between the discs 5, 8, and is instrumental in determining the slip and speed transmitted. When lever 16 is released, a spring 12 thrusts the carrier 7 against laminated brake discs 15, whereby reversed driving of shaft 3<1> is obtained.
Patent GB-1275831-A (GB)
Title: Improvements in or relating to amino- and acylaminobenzoic acid esters and their use as u.v. light absorbing compounds
IPC: C08K5/43
Filed: 1970-06-09
Abstract: 1275831 Stabilizing polymers KONINKLIJKE INDUSTRIEELE MAATSCHAPPIJ NOURY & VAN DER LANDE NV 9 June 1970 [24 July 1969] 27900/70 Heading C3P [Also in Division C2] A polymer composition comprises a polymer and at least one compound of the formula wherein R 1  is H or an alkyl group, R 2  is H, an alkyl group, an acyl group having not more than 20 C atoms, a substituted or non-substituted aroyl group, a substituted or non-substituted benzene sulphonyl group and X is phenylene or a biphenyl residue of the formula wherein Y represents H or halogen and Z is -SO 2 - or a C 3  to C 8  alkylidene group. Other additives may be present in the compositions such as plasticizers, pigments, heat stabilizers or lubricants. Examples are given in which P.V.C. and high-density polyethylene are stabilized.
Patent GB-1328013-A (GB)
Title: Driving means for a gear generating machine
IPC: B21B35/00
Filed: 1971-06-15
Abstract: 1328013 Rolling gears MAAG GEAR WHEEL & MACHINE CO Ltd 15 June 1971 [16 June 1970] 28027/71 Heading B3M A gear rolling machine comprises a pair of gear rolling rolls each mounted on a separate shaft with a worm-wheel 14, 15 driven by a hollow worm 13, 16. The worms are internally toothed to engage externally toothed coupling parts 11, 19, 20 on a drive shaft 10 and a coupling shaft 18. The drive shaft 10 is driven by a steplessly variable hydraulic motor 8 through a flexible coupling 9. The gear rolling rolls (5), (6), Fig. 2 (not shown), are each mounted on a slide (2), (3) and the hydraulic motor 8 is mounted on one of these slides. Thus the motor can drive the worms even when the axial separation of the worms is altered. The coupling parts 11, 19, 20 are part spherical to allow yawing of the worms. In an alternative form the shafts are splined.
Patent GB-805788-A (GB)
Title: A container for the storage of water-repellent liquids
IPC: B65D88/78
Filed: 1955-10-03
Abstract: 805,788. Tanks. GERDES, H. Oct. 3, 1955 [Oct. 2, 1954; April 2, 1955; April 20, 1955], No. 28059/55. Class 69 (1). Water-repellent liquids lighter than water are stored in the upper part of a thin inner lining with vertical and horizontal walls 7 and 8 (see Fig. 1), the lower part and the space between the lining and an outer container 1 being filled with water, and a liquid supply pipe 11 fixed relative to the outer container being provided. Ballast 14 of solid or liquid material is used to ensure that the stored liquid is kept always below the water level, which latter may be kept constant by connection by pipe 5 to a body of water 6, or by provision of a ground filter 3. Instead of the lining floating as shown, a heavy cover resting on the container 1 may absorb the buoyancy forces on the lining. Fig. 4 shows the use of a disc 24, preferably intermediate in density between the stored liquid and water, to prevent interpenetration at the boundary layer; the bottom of the lining is here shown closed by a domed part 26, an admission pipe 27 for the water being provided, while in a further modification the parts 26 and 27 are replaced by an apertured lining bottom. Specification 524,901 and German Specification 805,866 are referred to.
Patent GB-728033-A (GB)
Title: Improvements in bubble producing guns
IPC: A63H33/28
Filed: 1953-10-12
Abstract: 728,033. Bubble blowing devices ; water pistols. LARIN, M. T. Oct. 12, 1953, No. 28063/53. Class 132(3). A bubble blowing gun which may also be used as a water pistol has means for dispensing predetermined quantities of bubble forming liquid from a magazine into the path of a stream of air produced by means within the gun. A magazine 10 has a discharge sleeve 34 controlled by valves 35, 36 connected by a rod 38 to a trigger 12, and a rubber bulb 17 is fitted to an air expelling tube 22. A ball seat 45 is formed at the inner end of an orifice 25 which may be closed or opened by a ball 47. The gun is operated by first canting it downwardly to cause the ball 47 to close the orifice 25. The trigger is then squeezed causing valve 36 to close and valve 35 to open, thus allowing a quantity of bubble forming liquid from the magazine 10 to fill the sleeve 34. On releasing the trigger, a spring 43 causes valve 35 to close and valve 36 to open, the liquid in the sleeve flowing towards the orifice 25 and a film forming across the closed seat 45. Upon levelling the gun, the ball 47 is unseated, and squeezing the trigger causes the bulb 17 to be compressed by a hemispherical member 19 secured to the trigger, a jet of air from the tube 22 impinging on the film around the orifice 25 and causing bubbles to be formed. Air vents 27 provided in the barrel 8 permit an increase in volume and velocity of the air stream as it travels to the orifice 25. The vents also provide air supply for refilling the bulb 17 which would otherwise draw air through orifice 25 and break the soap film.
Patent GB-375645-A (GB)
Title: Improvements in tobacco feeding mechanism for cigar-making machines
IPC: A24C1/02
Filed: 1931-10-09
Abstract: 375,645. Cigar - making machines. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(International Cigar Machinery Co. ; 5520, 2nd Avenue, Brooklyn, New York, U.S.A.) Oct. 9, 1931, No. 28065. [Class 130.] In a tobacco-feeding channel formed by a plurality of travelling belts, means are provided, in advance of a compactor member in the channel, for holding down the edges of the tobacco leaves. Feed belts 10, 14 form the tobacco-feeding channel, and stationary ledges 21 on guards 20 project along the sides of the channel to hold down the leaves. The edges of narrow leaves which are not held down by the ledges 21 are guided against an inclined belt 24 running over adjustable pulleys 25, 26. A stripper 42 bears against the belt 24 to prevent tobacco from being lifted out of the channel by the belt 24, and a compactor 44 compresses the tobacco in the channel.
Patent GB-1095299-A (GB)
Title: Improvements in and relating to breathing apparatus
IPC: A62B7/00
Filed: 1966-06-23
Abstract: 1,095,299. Breathing apparatus. UNITED AIRCRAFT CORPORATION. June 23, 1966 [June 29, 1965 (2)], No. 28075/66. Heading A5T. In a breathing apparatus for controlling or assisting respiration, a source of nutrient gas under pressure is connected to a pure fluid amplifier and a mouthpiece and the apparatus is characterized in that the amplifier 12 includes a body having a power nozzle 40 connected to an inner action region by a V-shaped passage 48, 42, the first leg 48 being connected to the mouthpiece 14, a first control port 51 being disposed relative to the inner action region to direct nutrient gas at an angle thereto from the one leg 48 for switching the gas issuing from the power nozzle 40 from the said leg 48 to the other leg 42, and a second control port 87 being disposed relative to the inner action region to direct nutrient gas at an angle thereto from the other leg 42 for switching the gas issuing from the power nozzle from the leg 42 to the leg 48.
Patent GB-629052-A (GB)
Title: Improvements in or relating to the lubrication of shafts of change-speed gears
IPC: F16H57/04
Filed: 1947-10-22
Abstract: 629,052. Lubricating variable-speed gearing. AUSTIN MOTOR CO., Ltd., and DEPPER, A. J. Oct. 22, 1947, No. 28209. [Class 80 (ii)] An archimedian screw pump lubricates the contigious bearing of two co-axial shafts and spur wheels rotating thereon in a motor vehicle gear box. Oil is collected in a gallery f<1> of a gear box casing E and fed through a passage f to an annular chamber F in a bore d of a shaft housing D. A sleeve C, rigid with a third motion shaft B, has a helical, preferably square-sectioned, thread c which pumps the oil into an annular delivering chamber f<2> in communication with radial and axial passages b; b<1>. From the latter oil is fed through passages b<2>, b<3> to the bearings of spur wheels G, H, and through a passage b<4> to the bearing bush a' of a co-axial first motion shaft A. Alternatively the screw thread may be cut in the shaft B, and in a modification the thread or the sleeve C may be on the shaft A.
Patent GB-369888-A (GB)
Title: Improved handle or cover for golf sticks and the like
IPC: A63B53/14
Filed: 1930-09-22
Abstract: 369,888. Handles. BERG, E. J. VAN DEN, 17, Roemer Visscherstraat, Amsterdam. Sept. 22, 1930, No. 28325. Conven. tion date, Sept. 27, 1929. Void [Published under Sect. 91 of the Acts]. [Class 61 (i).] Grip, facilitating. - A handle for a spade &c. is formed in such a manner that the hand or hands of the user of the implement fit around the handle in one predetermined position only. The handle is formed of vulcanized rubber, wood, pressed leather or papier mÔchÚ, shaped to the hand of the user by the impression of the fingers or by other means. The handle may be adjustable longitudinally of the shaft and may be shaped to allow the thumb of the user to occupy either of two positions.
Patent GB-886482-A (GB)
Title: Cable vibration damper
IPC: H02G7/14
Filed: 1960-08-16
Abstract: 886,482. Vibration dampers. SCHWITZER CORPORATION. Aug.16, 1960 [Aug. 26, 1959], No. 28352/60. Class 36. An assembly for damping vibration in a cable 10 comprises a tubular elastic element of longitudinally decreasing radial stiffness, made in two semi-circular opposed sections 11, 12 to enclose a length of the cable and a rigid, tubular sheath enclosing the elastic element, comprising two semicircular opposed sections 21, 22, the abutting edges 23, 23a, 24, 24a of the opposed sheath and elastic element sections being aligned, Fig. 2. The elastic element, which may be of rubber, has internal annular cavities 13 along its bore, spaced by walls 14 which engage the cable, and spaced, annular flanges 18 on the outside of the elastic element enclosing cavities 19, joined to cavities 13 by apertures 25, both cavities being of increasing volume from the narrower end of the assembly 16 to the wider end 17. The inner surface of the sheath has annular grooves 26 to engage the flange edges and sheath section 21 is provided with a trough 27 communicating with a hole in the sheath 28 to carry off water or condensation. The narrower end 16 of the assembly is placed nearer the cable support so that vibrations in the cable entering at end 17 are damped by losing their energy in frictionally generated heat and by pumping air back and forth through apertures 25. A mechanical bumper 32 prevents large swings of the cable.
Patent GB-616925-A (GB)
Title: Improvements relating to warp letting-off or tensioning motions for looms
IPC: D03D49/08
Filed: 1946-09-23
Abstract: 616,925. Letting-off motions for looms. SMITH HARGREAVES & CO., Ltd., J., and ANDREW, T. Sept. 23, 1946, No. 28396. [Class 142 (ii)] A letting-off motion for a loom of the type having ropes or chains d round the ruffles b, c has tensioning mechanism comprising two bell-crank levers h, k and adjusting means which apply equal tension to the two ropes d. A rod i pivotally connected to the arm h passes freely through a block j pivotally connected to the arm k. The tension in the ropes d is increased by compressing the spring q by means of a screwed collar m on the rod i. The collar m may be rotated from a point within the reach of the operative by a handle p operating a chain n and sprocket drive.
Patent GB-697436-A (GB)
Title: Improvements in oil burners
IPC: F23D5/00
Filed: 1951-12-04
Abstract: 697,436. Oil burners. ANDERSON, B. R., and QVARFORDT, K. E. V. Dec. 4, 1951, No. 28411/51. Class 75(i) In an oil burner of the type in which an open drum primary combustion chamber 9 projects into an open oil, receptacle 2 disposed within a wider air casing 1 and in . which the bottom of the drum is formed by a gasifier 10 having small passages through which oil and air pass into the drum, a baffle 20 surrounds the drum forming a space 21 for air to flow downwardly to apertures 19 near the bottom of the drum and also forming a space between the baffle and the oil receptacle for air to flow downwardly to the surface of the oil, and an annular opening 17 is provided between the top edge of the drum and the bottom edge of a secondary combustion chamber 23 for the supply thereto of secondary air from the air casing 1. The gasifier 10 consists of a wire basket. The drum 9 is secured by brackets 12 and bolts 13 to a ring 8 on the top edge of the air casing 1, so that a flange 11 at the rim of the drum is spaced from a metal ring 14 secured to the ring 8 and supporting the secondary combustion chamber 23. The space between the flange 11 and the ring 14 forms the annular secondary air inlet 17 and is provided with oblique vanes 16. Air is delivered under pressure to the air casing 1 by a pipe 6 and spiral vanes 7 are mounted on the outside of the oil receptacle 2 to cause the air to rotate. The oil is delivered to the oil receptacle by a pipe 5 disposed within the air supply pipe 6. The baffle 20 is bent inwardly at its lower edge to contact the drum 9 and is. provided with an asbestos jacket 22.
Patent GB-521591-A (GB)
Title: Improvements in or relating to step-by-step printing telegraph apparatus
IPC: H04L19/00
Filed: 1938-09-30
Abstract: 521,591. Step-by-step printing telegraph apparatus. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Sept. 30, 1938, No. 28478. [Class 40 (iii)] A combined transmitting and receiving step-by-step printing telegraph apparatus comprises a shaft 50 common to both transmitting and receiving apparatus and driven from a hand wheel or other common source of power through a spring 22, and separate clutches, 12, 23 and 54, 24 so interconnected with a send-receive switch 18, 19, 20 that the transmitting apparatus may be driven through one clutch while the receiving apparatus is declutched and disconnected and vice versa. The clutches are coupled together by a link 14, and to the switch by lever 21 ; and these parts are set to receive or send by a handle 1. The keyboard of the transmitter shown is provided as claimed in Specification 522,095 with a slotted wheel 80<SP>1</SP> co-operating with a lever 82 engaged by pins 85 on a link 9 of the mechanism.controlling the send-receive switch and the clutches, so that the send-receive switch cannot be moved from "send" to "receive" unless the keyboard is given a definite position by the depression of a specific key thereof. In that position, the keyboard lever 82 can enter a slot 81 in the wheel 80<SP>1</SP> thus permitting the operation of the handle 1 to put the receiver in operation ; and so long as the receiver is in operation. the transmitter keyboard is locked. Specifications 284,740, [Class 40 (iii)], 380,126, 490,361, 490,404, 503,384, and 503,521, [Group XXIV], also are referred to.
Patent GB-1538037-A (GB)
Title: Process for the preparation of prostaglandins
IPC: C07C401/00
Filed: 1977-07-07
Abstract: Compounds of formula: <IMAGE> in which R represents hydrogen or a C1-C4 alkyl, R1 represents hydrogen or a methyl, X represents oxygen or a methylene and R2 represents a C1-C4 alkyl are prepared by treating the corresponding disubstituted cyclopentanone with a methylsulfinyl, phenylsulfinyl or para-toluenesulfinyl halide in the presence of a strong base, and by then heating the 2-(methylsulfinyl, phenylsulfinyl or para-toluenesulfinyl)cyclopentanone thus formed. The compounds (I) can be used as intermediates in the synthesis of prostaglandins or they themselves have properties analogous to those of prostaglandins; it is thus possible to prepare, especially, prostaglandin A2 more satisfactorily than by the prior processes.
Patent GB-617307-A (GB)
Title: Improvements in and relating to locking nuts
IPC: F16B39/38
Filed: 1946-09-26
Abstract: 617,307. Locking nuts. UNITED-CARR FASTENER. CORPORATION. Sept. 26, 1946. ,No. 28771. Convention date, Oct. 10, 1945. [Class 89 (i)] Lock nuts have a load carrying barrel 11 and a locking barrel 21, the threads in the barrels being normally out of lead. The barrels are connected by intermediate flanges 13 and 22, 13 having anchoring spikes 14 and 22 being dished and having segmented slits to impart resilience in an axial direction. In a modification the flanges are secured together by spot welding instead of by clinching and both flanges are dished to provide space for an inturned barrel 21, where flush mounting is required.
Patent GB-1183775-A (GB)
Title: Improvements in and relating to Intaglio Printing Presses
IPC: B41F3/30
Filed: 1968-06-17
Abstract: 1,183,775. Printing apparatus. AKERLUND & RAUSING A.B. 17 June, 1968 [19 June, 1967], No. 28801/68. Heading B6C. [Also in Division B8] Proofs are obtained from printing surfaces 7 on etched or engraved plate 6 by inking the plate 6 and moving carriage 5 over the plate 6, guided by rod 4 and track 14. Doctor 10, which may be a spring steel blade, removes surplus ink from the plate 6 and resilient impression cylinder 11 forces paper 17 from roll 16 into contact with that part of plate 6 which lies beneath cylinder 11, after which the paper is lifted away from the plate 6 by line 19. Sheets of paper, plastics material or aluminium foil and webs of plastics material or aluminium foil may be used in place of the paper 17.