baber/WOPTO huggingface dataset:
Patent GB-1085771-A (GB)
Title: Improvements in the preparation of 1,3,4-oxadiazol-2-one derivatives
IPC: C07D271/113
Filed: 1965-01-14
Abstract: 1,3,4-Oxadiazol-2-ones of the formula <FORM:1085771/C2/1> where X is H, Na or K and R1 is alkyl, optionally substituted aryl, aralkyl optionally substituted on the aryl nucleus, optionally substituted heterocyclyl attached by a caron atom, or heterocyclylalkyl optionally substituted on the heterocyclyl nucleus, the substituted nuclei carrying one or more chlorine atoms and/or alkyl groups containing not more than four carbon atoms, are prepared by reacting sodium or potassium hypobromite at between - 10 DEG  and + 10 DEG  C. in the presence of sodium or potassium hydroxide with an acylurea of the formula R1-CO-NH-CO-NH2 and optionally treating the salt obtained with an acid to yield the base.  The products may be reacted with perchloromethylmercaptan to yield compounds of the formula <FORM:1085771/C2/2>
Patent GB-507348-A (GB)
Title: Improvements in or connected with watches or clocks
IPC: G04B37/04
Filed: 1938-01-19
Abstract: 507,348. Clocks and watches. MAGNUS, H. F. Jan. 19, 1938, No. 1778. [Class 139] A watch or clock 5 is rockably mounted in an additional outer case 1 and is allowed or caused to rock upwards through an opening 2 in the outer case when this opening'is uncovered by a flexible sliding shutter 4. A plate 3, on the inner face of each side wall of the outer case, has inwardly projecting flanges 3b, 3c forming a guide groove for the shutter 4 which consists of canvas to which are attached parallel metal strips. The watch 5 has a plate 5a pivoted at 6 to the outer case 1 and about one pin 6 is a spring 7 which rocks the watch up to exposed position when the shutter 4 is moved left to uncover the opening 2 by means of its end piece 4a. The rear end 1c of the case 1 is preferably detachably held by screws 8, and a plate 9 hides the flanges 3b, 3c and shutter 4 in the bottom of the case. When piece 4a is moved to the right it forces the watch down. Flange 3b may be dispensed with, the casing 1 functioning in its stead. The watch 5 may. be pivoted at the other end of case 1 and connected by levers to shutter 4 so that it rises and falls as the shutter uncovers and covers the opening.
Patent GB-474067-A (GB)
Title: Improvements relating to locks
IPC: E05B35/08
Filed: 1936-01-20
Abstract: 474,067. Change-key locks. SOKAL, H. Jan. 20, 1936, No. 1823. Void. Convention date, Jan. 21, 1935. [Class 44] A change-key lock having two interlocking groups of tumblers of which one group is disengaged from the other on displacement of the bolt into locking position and the tumblers secured by a locking member in the relative positions determined by the key bits, has the tumblers which are directly operated by the key movably mounted in a slide the displacement of which moves the tumblers jointly into and out of engagement with the tumblers of the other group. Tumblers i have horizontal slots i<1> sliding over pins h<1> carried by a slide h which has lateral projections g working in vertical slots in the lock casing. Each tumbler has a projection i<11> adapted to engage a corresponding notch k<1> in a second group of tumblers k slotted to slide on pins l<1> in the casing. A sliding bolt c has a notch d engaging a pin e<11> on a lever e pivoted at e<1> and connected to a sliding member t upon which a step s on the slide h normally rests, the projections i<11> then being in engagement with the notches k<1>. Two revolutions of the key are necessary to shoot the bolt, the key during the first revolution encountering a surface o on the lever e, which is turned to move the bolt c and member t part way, the key bits also causing relative displacement of the tumblers i and their corresponding tumblers k. During the second revolution of the key it again displaces the tumblers and encounters a surface o<1> on the lever e whereupon the bolt c is completely shot and a spring c<1> thereon engages a cam m<1> on a member m, normally supported by springs m<11>, to bring a serrated surface thereon into locking contact with the serrated upper edges of the tumblers k. Simultaneously the member t is withdrawn from under the step s and the slide h falls, assisted by a spring s<1> and the two groups of tumblers are disengaged. The tumblers i are then brought to their initial position by individual springs p. The bolt is unlocked by a return motion of the key which encounters a shoulder h<11> on the slide h to raise it and bring the projections i<11> again into engagement with the notches k<1> but this can only be done by a key having the same arrangement of bits as the one used to shoot the bolt.
Patent GB-1499719-A (GB)
Title: Weight sensing apparatus
IPC: G01G19/12
Filed: 1975-01-16
Abstract: 1499719 Measuring weight of vehicles K E JOHANSSON 16 Jan 1975 [16 Jan 1974] 01974/75 Headings (G1N(A) and G1W Apparatus attaching a weight sensor 4 to a vehicle having two spring assemblies 1, 8 in series end to end relation, comprises two pivotting levers 10, 29 coupled to respective adjacent ends of the springs, the sensor 4 being pivotally coupled between lever 10 and a pull-equalizing rod 11 the other end of which is pivotted to lever 29. The ends of the springs bear on respective rollers 2, 7.
Patent GB-332890-A (GB)
Title: Improvements in processes for purifying steel
IPC: C21C7/00
Filed: 1929-01-21
Abstract: 332,890. Marks, Sir G. C., (Lusifer Products Co.). Jan. 21, 1929. Casting processes.-Steel is purified, subsequent to the main finishing reactions, by adding to the molten mass in the ingot mould, and mixing therewith, preferably after removal of the main finishing slag but before solidification, less that one per cent of finely divided slag-forming materials which consist mainly of alumina. The latter may be mixed with silica either in the free or combined state and/or ferric oxide. In an example, the materials consist of 80 parts of alumina, 4 parts of silica and 16 parts of ferric oxide. Specification 1437/93, [Class 72, Iron &c.], is referred to.
Patent GB-308403-A (GB)
Title: Improvements in or relating to the manufacture of soluble plant extracts
IPC: A23L2/82
Filed: 1928-01-24
Abstract: 308,403. Goedecke, F. Jan. 24, 1928. Inosite hexaphosphoric acid vitamins.-Inosite hexaphosphoric acid or its salts and vitamins are obtained from plants by adding to an aqueous, or acid-aqueous, extract compounds of calcium or magnesium such as the carbonates or hydroxides which convert the inosite hexaphosphoric acid, or its acid salts, into the neutral salts which are precipitated and are separated by filtration from the liquid containing the vitamins. Inosite hexaphosphoric acid itself or its acid salts may be obtained from the precipitate by treatment with an acid, such as oxalic acid, forming an insoluble salt with the alkaline earth metal. The vitamins may be obtained from their solution by any suitable method. A dietary composition may be obtained by mixing an aqueous solution of the acid calcium salt of inosite hexaphosphoric acid and an aqueous solution of vitamins, and evaporating to dryness or adding the neutral salts to the vitamin solution and evaporating or mixing the previously dried components. The composition may be added in a dry state to chocolate &c. or in the liquid state to liquid foods &c.
Patent GB-153209-A (GB)
Title: Improvements in exhausting arrangements for automatic musical instruments
Filed: 1919-06-24
Abstract: 153,209. Sawyer, T. June 24, 1919. Stools combined with automatic musical instruments.-The exhausting-bellows 3 of a player'- piano are arranged in a separate casing 1 forming a music stool, the operative parts being adapted to fold within the casing when not in use. The pedals 11 are carried by a board 10 hinged to the base of the casing and bear against rollers 17 on quadrants 16, which actuate the bellows 3 through chains 14 engaging teeth on the quadrants. The hinged front 5 of the casing supports a detachable tube 7 leading from the bellows and connected at its outer end 8, through a flexible tube, to the pneumatic action of the instrument. Alternatively, the connecting-tube, instead of being detachable, may be pivoted on the outside of the casing about a connexion leading to the bellows. A pneumatic 19 controlled from the player through a tube 23 actuates the loud pedal of the pianoforte through a rod 21 and lever 22. According to the Provisional Specification, means may be provided for adjusting the height of the pedals.
Patent GB-858560-A (GB)
Title: Improvements in or relating to blank cartridges
IPC: F42B8/04
Filed: 1958-01-23
Abstract: 858,560. Blank cartridges. DYNAMITACTIEN-GESELLSCHAFT VORM. A. NOBEL & CO. Jan. 23, 1958 [Feb. 28, 1957], No. 2346/58. Drawings to Specification. Class 9(1). The case and head of a blank cartridge are made from a polyolefins of high molecular weight or a polyamide of low water absorption. The polyolefine preferably has a molecular weight of 50,000 or more and may be polypropelene or low pressure polyethylene. The tubular portion of the case may be stuck or resistance welded to a tubular extension of the head. The case may also be produced by injection moulding, the head being integral with the tube. Specification 732,633 is referred to.
Patent GB-538621-A (GB)
Title: Improved airscrew-apparatus for the propulsion of aircraft
IPC: B64D35/04
Filed: 1940-02-07
Abstract: 538,621. Variable pitch propellers. MILNER, H. L., and McNAB, N. S. Feb. 7, 1940, No. 2397. [Class 114] In an arrangement for simultaneously adjusting the pitch of co-axial propellers 1, 2, driven in opposite directions the piston 28 and cylinder 29 linked to eccentric pins 33 on the root of the airscrew and are also linked by rods 34 to a ring 35 which supports the inner race of a ball bearing of which the outer race comprises a rotatable collar linked to pins eccentrically mounted on the roots of the blades of the rear airscrew 2. Specification 343,653 is referred to.
Patent GB-551104-A (GB)
Title: Improvements in paper feeding means for typewriting machines
IPC: B41J13/20
Filed: 1942-02-24
Abstract: 551,104. Typewriters. UNDERWOOD ELLIOT FISHER CO. Feb. 24,1942, No. 2432. Convention date, March 21, 1941. [Class 100 (iv)] A paper-bail is constrained to swing fore-and-aft of the machine and move up and down in relation to the platen. In the construction shown in the Figure, a square rod 12 carrying feed-rollers 13 is mounted at each end on an arm 14 connected by pivots 15, 20 to links 16, 18 which are connected by pivots 17, 22 to a bracket 11 on the carriage 9. A wire spring 24 abuts on the link 16. To apply the feed-rollers, the rod 12 is pushed rearwards, the toggles constituted by the arms 14 and links 18 are straightened, and when the dead-centre position is passed, the springs 24 break the toggles, the feedrollers move tangentially into engagement with the platen 9, and the sheet is wrapped around the platen Finally, pins 26 on the pivots 20 engage cam-surfaces 27 on the brackets 11, and the feed-rollers are pressed radially into engagement with the platen. To permit yielding of the feed-rollers for accommodating manifold-packs, the links 18 have loose engagement with the pivots 22. To disengage the feed-rollers, the bar 12 is pulled forwards until the toggles 14, 18 are over the dead-centre, and the springs 24 then complete the movement. The bail and linkage are arranged entirely above and in front of the platenaxis so as to permit ready detachment of the platen. In a modification, the wire-springs 24 are replaced by tension-springs which are connected to the pivots 15 and pins on the brackets 11.
Patent GB-871399-A (GB)
Title: Improvements in or relating to speed changing mechanisms
IPC: F16H15/50
Filed: 1958-01-24
Abstract: 871,399. Variable-speed gear. SACCHI, G. Jan. 24, 1958 [Jan. 24, 1957], No. 2465/58. Class 80 (2). A steplessly variable ratio gear for motor vehicles comprises two wheels 20, 22 in peripheral frictional engagement at least one, e.g. 20 of the wheels being radially deformable to vary its effective diameter by varying the radial eccentricity of either wheel to vary the speed ratio between the wheels. Radial deformation is permitted by an external or internal pneumatic tyre, e.g. 21 in the wheel 20. In Fig. 4 (not shown), the wheels 20, 22 form final driving and driven members, eccentric movement of the wheel 22 being permitted by a double universal joint connecting it to the output shaft. In Fig. 5 (not shown), the wheel 22, similarly jointed to the output shaft, is a planet carried on a variable eccentric on the input shaft, and the wheel 20 is fixed. In Fig. 1 the variable gear is planetary and is connected with an invariable torque splitting- toothed planet gear. The variable gear comprises an outer drum 20 which may be held by a brake 30 releasable for use as a starting control and carries internally a pneumatic tyre 21, a coaxial input (or output) shaft 16 has a ratio selecting variable eccentric 17 (of the compound type, Fig. 2 (not shown)), freely carrying a planetary drum 22 engaging frictionally the tyre 21 and carrying internally a tyre 23, which frictionally engages an inner drum 24 free on the shaft 16. The shaft 16 and the drum 24 comprise two input (or output) members of the invariable epicyclic gear comprising an internal and external planet 35 carried eccentrically by the shaft 16, a sun 31 fast to the drum 24 and a ring gear 32 fast on the output (or input) shaft 33. In Fig. 3 (not shown, the invariable epicyclic gear comprises a sun fast on the input shaft, an output ring gear and a simple planet carrier connected through an invariable reversing gear to the friction drum 24 (Fig. 1). In Fig. 7 (not shown) the input shaft is connected to one side wheel of a bevel differential gear, the other side wheel being connected to the output shaft which carries the variable eccentric of the friction gear, whilst the planet carrier is connected through a two-stage reduction gear to the inner drum 24 (Fig. 1) of the friction gear. In Fig. 8, an input shaft 16 drives a sungear 70 which meshes a planet pinion 71 of stepped planets 71, 72, the planet carrier 74 of which is connected to the inner drum 24 of the friction gearing. A ring gear 73 is fixed to an output shaft 33 which carries fixed thereto the outer drum 20 of the friction gear. The intermediate drum 22 is freely rotatable on a stationary variable eccentric 75. Formulµ for the gear ratios are stated. Specifications 158,429 and 501,758 are referred to.
Patent GB-686213-A (GB)
Title: Improvements in stockings
IPC: A41B11/02
Filed: 1951-02-01
Abstract: 686,213. Stockings. FROST, R. V., and FROST, K. R. Feb. 1,1951, No. 2488/51. Class 141. A stocking has a sole portion a and toe portion b made of pure wool whilst the leg d and the upper part of the foot are of other material e.g. nylon, silk &c. The usual heel reinforcement c may be provided.
Patent GB-492138-A (GB)
Title: Improvements in and relating to windshield cleaners
IPC: B60S1/26
Filed: 1938-01-27
Abstract: 492,138. Windscreen-cleaners. TRIGGS, W. W. (Trico Products Corporation) Jan. 27, 1938, No. 2601. [Class 138 (i)] In a wiper-mechanism of the kind driven from a moving part of the vehicle or engine through a rotating shaft 1, clutch 2, 3, and transmission shaft 4, the end of the shaft 4 is held against axial movement in a head 7, as by thrust bearings 13, 14. The head houses the wiper-actuating shaft 15 on which is the worm gear 11, and is bodily slidable in guideways 21, 22. The shaft 15 carries a crank arm which oscillates the wiper 16 either directly or, as shown, through rack and pinion gearing 18. A pin 25, provided with an operating knob and slidable in the fixed guideway 21, carries an abutment 27. When, during the operation of the wiper, the pin is moved out of locking engagement with a notch 26 in the head 7, the abutment is brought into the path of movement of a cam 28 on the shaft 15. Engagement of the cam with the fixed abutment acts to slide the head 7 to the right. This movement disengages the clutch 2, 3 and also moves the wiper to parked position.
Patent GB-822203-A (GB)
Title: Improvements relating to impregnating and electrical insulation testing apparatus
Inventor: JAMES RONALD EDWARD
Filed: 1957-01-24
Abstract: 822,203. Electric tests. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 15, 1958 [Jan. 24, 1957], No. 2617/57. Class 37. Electrical insulating material impregnated in a chamber 1 is tested by high voltage electrodes 3, 4 in the same chambers. The insulation is wound circumferentially round a spider frame 2 which is mounted on a shaft 13 through the centre of which runs a screw 11 which engages a nut 10 attached to the spider. The arrangement is that rotation of external gear 18 turns the spider while rotation of gear 17 moves it axially. Thus the insulation stretched between adjacent arms of the spider may be inserted between electrodes 3, 4, upper electrode 4 being adjustable into contact with it, tested by the application of high voltage to the electrodes, withdrawn by gear 17 and rotated to bring another part of the insulation into line with the test electrode by gear 18.
Patent GB-1491555-A (GB)
Title: Stair climbing tracked vehicle
IPC: A61G5/06
Filed: 1975-01-21
Abstract: 1491555 Wheel chairs for ascending stairs RAMBY Inc 21 Jan 1975 2643/75 Headings B7D B7E and B7H A tracked wheel chair capable of negotiating stairs comprises a pair of auxiliary tracks 32 pivoted to main tracks 22, a self levelling seat 54 and a linkage 70 for controlling pivotal movement of the auxiliary tracks. For normal travel the auxiliary tracks are pivoted upwardly about shafts 36, which also mount the main track drive sprockets 26, and wheels 62 at the rear of the auxiliary tracks contact the ground lifting the front ends of the main tracks. Drive to sprockets 26 may be via hand cranks 40, 40<SP>1</SP> and chains 44, 44<SP>1</SP> or by an electric motor and each main track may be driven independently. Linkage 70 includes a piston/cylinder device 84, 86 and an arm 73 connected by a joint which may be locked to hold the auxiliary tracks pivoted upwardly (Fig. 14a, not shown). Release of the joint (Fig. 14b, not shown) also releases a catch 80 holding the piston/cylinder device, and the tracks lower under gravity without extending the device until they pass below the horizontal. The device 84, 86 includes a restriction to prevent rapid movement of the auxiliary tracks. Seat 54 is supported on a pedestal 52 pivoted about shafts 36 and is moved in response to an inclination sensor to keep the seat level via a motor 90 and screw jack 92. The sensor includes a damped pendulum element (Fig. 15, not shown). Fail safe devices are provided to ensure that the wheel chair cannot descend stairs unless positively driven and cannot slide back whilst ascending.
Patent GB-1494511-A (GB)
Title: Cross-lapping mechanisms
IPC: B65H45/103
Filed: 1975-01-14
Abstract: 1494511 Cross-lapping mechanisms WIRA 14 Jan 1975 [19 Jan 1974] 02645/74 Heading D1N  A cross-lapper has a storage carriage 18  which feeds web to a delivery carriage 15, the delivery carriage depositing the web on a receiving surface, the storage carriage being driven in phase with movement of the delivery carriage at speed differing from half that of the delivery carriage such that differential stretching of the web is reduced. The storage carriage has an amplitude less than that of the delivery carriage by an amount in the range 2¢ to 15%. The mechanism to achieve this shown in Fig. 3 has a chain 53 drive to the delivery carriage 15 and a further chain 51 embracing the storage carriage and connected at 50 to the delivery carriage. In prior art machines the upper run of chain 51 would have a fixed point to give the storage carriage exactly half the amplitude of the delivery carriage but in the present invention the upper run of chain 51 engages a sprocket 41 geared to run at a low speed in synchronism with the drive of the delivery carriage. This produces the reduced amplitude. In an alternative embodiment, Fig. 4, separate chains 53 and 60 drive the respective carriages gearing being provided to give the desired amplitude ratio to the belts.
Patent GB-1504453-A (GB)
Title: Offshore platform having a flexible connecting joint
IPC: E02B17/02
Filed: 1976-01-23
Abstract: 1504453 Pivots P H MOE 23 Jan 1976 [23 Jan 1975] 2646/76 Heading E2F [Also in Division B7] The deck 1 of an oil platform is supported for vertical and lateral movement on columns 3 by a plurality of flexible members 11 e.g. of aluminium, or by spring or fluid pressure-loaded pistons, to transmit axial and lateral loads. Each column 3 has a plurality of guide sleeves 7 anchored by ribs 9 and each having a seat plug 10 receiving member 11. Enlargements 12 on member 11 have clearance in sleeve 7 and prevent binding when member 11 expands on compression. A semispberical member 13 seats on member 11 and engages a socket in deck 1, a lubricant being provided between the bearing surfaces. Sleeve 7 may contain a lubricant and/or corrosion inhibitor.
Patent GB-469125-A (GB)
Title: Improvements in and relating to electric cookers
IPC: F24C7/06
Filed: 1936-01-29
Abstract: 469,125. Electric cooking - ovens. GENERAL ELECTRIC CO., Ltd., and CATTELL, G. S. Jan. 29, 1936, No. 2700. [Class 39 (iii)] In an electric cooker having a guard plate extending over a side or the back of the oven to protect the heating elements and prevent direct radiation therefrom falling on the foodstuffs, thermal insulating means are provided on the plate only in the neighbourhood of the elements. The insulating means may comprise an air gap between the plate and a smaller subsidiary plate 2 which may be mounted in a recess 1 in the main guard plate in order that the plate 2 shall not project. The plate 2 is mounted by clips 3 and a screw 4. Holes 6 and 7 are provided in the guard plate to allow air circulation over the element 5.
Patent GB-272261-A (GB)
Title: Improvements in or relating to ovens for baking, drying, and other heating operations
IPC: A21B1/06
Filed: 1926-02-01
Abstract: 272,261. Vicars, Ltd., T. &. T., and Crosland, E. M. Feb. 1, 1926. Atmospheric gas burners; perforated-tube burners; burners, mounting and adjusting. - A baking, drying, or like oven, of the kind in which the goods are carried through the oven in two or more tiers, is heated by gas burners 5 enclosed in radiator boxes 3, 4, arranged transversely between the tiers, and so mounted that the heat may be directed on to the top 7 or bottom 8 of the radiators, as desired. The burners are of the kind comprising an inner perforated tube 10, Fig. 3, supplied with gas and air mixture and enclosed in an outer tube 9 having burner apertures non-coincident with the perforations in the tube 10, the two tubes being rotatable as a single unit to direct the flames upwardly or downwardly. In Fig. 3 the tubes 9, 10, which are locked together by a pin 12 engaging in a groove 11 on the inner tube and rotated by a handle 14 are mounted by means of a gland nut 16 on a fixed mixing tube 15 which is formed with the usual Venturi 17 and is supplied with gas by a nipple 19 carried by a swinging yoke 20. In the construction shown in Fig. 5, the mixing tube 15 is detachably secured to the tubes 9, 10 by spring jaws 21 engaging a flange 23 on the tube 9. Further modifications are described in which the tubes 9, 10 are integral with the tube 15, the whole burner unit being rotatably mounted on the gas nipple or in a bracket carried thereby.