baber/WOPTO huggingface dataset:
Patent GB-429972-A (GB)
Title: Improvements in or relating to starting devices for internal combustion engines
IPC: F02N15/06
Filed: 1934-08-17
Abstract: 429,972. Turning-gear. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Aug. 17, 1934, No. 23708. Convention date, Sept. 18, 1933. [Class 7 (v)] In an engine starter in which a driving member such as a pinion a is connected through an automatic clutch c to means tor storing energy, such as a flywheel b, the clutch and pinion being displaceable to bring the pinion into mesh with an engine gear, the clutch is released during such displacement, so that the pinion is not rotated by the flywheel until it is in mesh with the engine gear. As shown, a sleeve d integral with the pinion and a member f of the clutch are rotatable upon a shaft k. The clutch comprises plates g under the pressure of a member e threaded on the sleeve d, a light spring h being interposed between the member e and a shell i abutting against a shoulder on the sleeve d. A lever t for displacing the pinion and clutch engages a sleeve u mounted on the member e. The member f of the clutch is splined in a sleeve n driven from the flywheel b through planetary gearing v, and is retained on the shaft k by a screwed ring p. The hub of the member f is frictionally engaged by a split sleeve q retained between a stop ring s and a shoulder r in the bore of the sleeve n. On rocking the lever t to displace the pinion a into mesh with the engine gear, the clutch member f is retarded by the split sleeve q and the movement of the member e compresses the spring h and releases the clutch, so that the pinion is not rotated until fully in mesh.
Patent GB-1441725-A (GB)
Title: Pneumatic power tool
IPC: F01N13/00
Filed: 1974-05-29
Abstract: 1441725 Muffling arrangement for power tools BLACK & DECKER MFG CO 29 May 1974 [30 May 1973] 23715/74 Heading B3N [Also in Divisions F1 and B4] In a pneumatic power tool air is exhausted from aperture 16 into a chamber 17. A muffling insert 20 is fixed in the chamber by a screw 21. The insert forms a second chamber with holes 28 connecting it to chamber 17 and to the atmosphere. The holes have a length to diameter ratio of from 1 to 1 to 4 to 1.
Patent GB-685027-A (GB)
Title: Improvements relating to the detection or measurement of x-ray energy
IPC: G01T1/26
Filed: 1951-10-11
Abstract: 685,027. Radiation-sensitive devices; measuring X-rays. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 11, 1951 [Oct. 18, 1950], No. 23729/51. Class 40 (iii). - A semi-conductor device which varies in conductivity on the incidence of X-rays comprises a crystal of cadmium sulphide with a steady polarizing voltage. The crystal should be free from lattice distortion, e.g. it should have been annealed in an oxygen-free atmosphere. A sensitive device may comprise a stack or row of crystals with their negative ends presented to the X-rays. To increase the sensitivity, the crystal is steadily illuminated, preferably with green light of 5200 A.U. wavelength. Such illumination also reduces the duration and intensity of the surge of current when X-rays are suddenly applied to the crystal. This surge effect is increased by red light and eliminated by blue light. Where the X-rays are pulsating, an A.C. amplifier 15 can be used to operate the indicator or meter and no compensation is necessary in respect of the steady illumination by source 21. The apparatus may be used for giving a warning of the presence of X-rays, for controlling their intensity or dosage, for indicating liquid levels and for detecting foreign bodies in food packets.
Patent GB-599171-A (GB)
Title: Improvements in and relating to tampers for cigarette machine feeders
IPC: A24C5/39
Filed: 1945-09-14
Abstract: 599,171. Cigarette-making machines. THOMPSON, R. Sept. 14, 1945, No. 23738. [Class 130] In a tobacco feeding apparatus for a cigarettemaking machine, tobacco is tamped on to a feed drum 14 by radially reciprocating weight bars 68 which.are connected on opposite sides to an oscillating shaft 52 by flexible elements, e.g. chains 60, attached to lugs 62 on alternate bars. The bars 68 extend across the hopper and the chains are fixed to a sleeve 56, keyed to the shaft 52, which is oscillated from a rotating shaft 18 by connected links 38, 46 and radial members 42, 50. The links 38 carry a transverse bar 30 which passes through elongated holes 32 in the sides of the hopper and has rake tines 34 which are thus given a sweeping movement towards and away from the drum 14.
Patent GB-680070-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D9/00
Filed: 1950-09-28
Abstract: 680,070. Centrifugal pumps. ANDERMATT. C., and GUBELI, V. Sept. 28, 1950 [Sept. 28, 1949; July 26, 1950], No. 23794/50. Class 110 (i) In a centrifugal pump any air or gas entrained in the liquid is homogeneously mixed therewith by means of at least one groove in the walls containing the blade channels, the groove providing a sudden increase in the channel 1 cross-section. Grooves 5, Fig. 5, which may be concentric with the impeller axis, are formed in the side walls of the flow passages between the impeller blades 4. The impeller may have a single disc 2, as shown, the remaining side wall being formed by a position 9 of the pump casing. Alternatively, the disc 2 may be eliminated, or the impeller may be of the double-disc type. A ring 19, grooved on one or both sides, may be provided. The angle between the two surfaces forming each groove can be from 10 to 144 degrees. Fig. 3 shows a modification, with grooves 7 increasing in depth towards the impeller periphery. In the construction shown in Fig. 9, the blades 4 are formed with grooves 13 on one or both sides, and the grooves 5 in the disc 2 are inclined, as shown, with respect to the circumferential direction. The blades may be alternately long and short.
Patent GB-926835-A (GB)
Title: A steplessly variable change speed gear
Inventor: HALL HUBERT DANIEL
IPC: F16H15/20
Filed: 1960-07-08
Abstract: 926,835. Variable-speed friction gear. HALL & KAY Ltd. June 23, 1961 [July 8, 1960], No. 23872/60. Class 80 (2). In a variable-speed friction gear comprising oppositely disposed cones 21, 14 mounted on parallel shafts 19, 20 and engaged by a screwtraversed idler roller 29, the drive cone 21 and the idler 29 are capable of transverse movement to permit pressure adjustment between the drive members. For this purpose cone 21 and idler 29 are mounted upon a carriage 13 movable along transverse guides 11 by operation of a screwed rod 15, while the end supports 24 of the idler-adjusting screw 25 are mounted for transverse movement on guides 23 secured to the carriage 13. The engaging surfaces of the cones and idler are preferably of rubber or like resilient material, and may be provided with ribs and grooves or other surface formations to improve the frictional engagement.
Patent GB-442270-A (GB)
Title: Improvements in devices for conveying objects being treated in continuously operating furnaces
IPC: F27B9/20
Filed: 1935-01-17
Abstract: 442,270. Conveyers. FOURMENT, M., 47, Avenue Mozart, and GIFFAUT, G. LADUREE-, and LADUREE, A. M., 8, Rue de la Bienfaisance, both in Paris. Jan. 17, 1935, No. 23880. Convention date, Jan. 18, 1934. Divided application. [Class 78 (i)] In a step-by-step conveyer for furnaces comprising two sets of narrow moving bars 6, 7, the latter are held at one end 15 only and rest freely on lifting eccentrics 4, 5, Fig. 7, which are displaced by 180‹ from each other on the actuating shafts 2, the eccentrics being driven in a direction F towards the free ends of the bars so that the frictional action exerted thereby places the bars under tension. To prevent excessive strain on the external eccentrics 16, 17, which co-operate with the frame-like ends 15 to effect longitudinal movement of the bars, the tensional force therein may be reduced by driving some of the shafts 2 in the rearward direction H, each such shaft being disposed between two forwardly driven shafts.
Patent GB-440555-A (GB)
Title: Improvements in or relating to cinematograph projection cabinets
IPC: G03B29/00
Filed: 1935-08-27
Abstract: 440,555. Optical-projection apparatus. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Aug. 27, 1935, No. 23929. Convention date, Aug. 29, 1934. [Class 97 (i)] In a projectior cabinet, the bean from the projector is reflected to a screer within the cabinet in such manner that the axes of the incident and re flected beams in clude an angle not greater than 60‹, and the reflected beam crosses the rays from the screen which are reflected to a viewing opening. As shown, the beam from a projector 3 is reflected to a screen 4 by a mirror 1, the screen being viewed at an opening 5 by means of a mirror 2. The angles between the axes of incident and reflected beams may be 45 to 60‹ at the mirror 1, and 15 to 25‹ both at the screen 4, and at the mirror 2. The screen 4 may be on the same wall of the cabinet as the viewing opening 5 and the upper part of the cabinet may be roof shaped.
Patent GB-750211-A (GB)
Title: Improvements in or relating to cold cathode electron discharge devices
IPC: H01J17/04
Filed: 1950-10-02
Abstract: 750,211. Cold-cathode tubes. ERICSSON TELEPHONES, Ltd., and ACTON, J. R. Oct. 2, 1951 [Oct. 2, 1950], No. 24013/50. Class 39 (1). The insulation between the electrodes of a cold cathode gas-filled trigger tube comprising an anode 2, cathode 3 and trigger electrode 4 is maintained by partially enclosing the anode and cathode in glass tubes 5 and 6, each having an inner surface which is spaced from the electrode which it surrounds and which remains free of sputtered material. The anode, cathode and trigger electrodes are formed from the nickel parts of three composite joined wires having borated copper parts which form lead-out wires 12, 13, and 14. The glass tubes 5 and 6 are heated and shrunk at the ends and are sealed to the composite joined wires at the point where the nickel and borated copper parts meet. The trigger electrode 4 is surrounded by a glass tube 7 which is shrunk along substantially the whole of its length and is sealed to the lead-out wire 14. The cathode 3 projects beyond the end of the tube 6 a greater distance than the anode 2 projects beyond the end of the tube 5 and the trigger electrode 4 is mounted so that the centre of its circular end lies in the same plane as the end face of the cathode 3. Nominal dimensions of the principal tube parts and electrode gaps are given. The tube is evacuated by means of an exhaust tube 15 and is filled with a gas mixture such as 62.5 per cent helium, 37 per cent neon and 0.5 per cent argon at a pressure of 30 mm. of mercury.
Patent GB-672998-A (GB)
Title: Improvements in ramming and tamping devices operated by direct acting internal-combustion engines
IPC: E01C19/36
Filed: 1947-08-06
Abstract: 672,998. Direct acting engines: spray carburetters; non compression engines; valves. BARD. F. N. Aug. 6, 1947 [June 7, 1947]. No. 24148/49. Divided out of 646.987. Drawings to Specification. Classes 7(ii), 7(iii), and 7(vi) , An internal-combustion operated ramming and tamping device includes a body portion having a cylinder therein, a piston movable in the cylinder and adapted to be moved in one direction by ignition of a combustible charge in the cylinder, an inlet passageway for a combustion mixture opening into the cylinder and having two valve seats therein, liquid fuel delivery means associated with the seat farthest from the cylinder and fluid pressure actuated valve members co-operating with each of'the seats. The ramming device described is similar to that disclosed in Specification 646,987, referred to, and further details are given in the abridgment of that Specification.
Patent GB-724101-A (GB)
Title: Improvements relating to the manufacture of cables, ropes and the like
IPC: D07B3/04
Filed: 1951-10-16
Abstract: 724,101. Rope stranding machines. ROZIERES, J. A. L. Oct. 16, 1951 [June 9, 1951], No. 24161/51. Class 109. In an apparatus for making wire ropes or cables in which wires or strands are twisted together and in which normal residual elasticity in the rope is nullified by backtwisting the rope, a device is interposed between the backtwister and a winch feeding a take up reel, which, in response to residual elasticity remaining in the rope, occasioned by local departures from normal elasticity, varies the rotary speed of the take-up winch or of the backtwister relative to the twisting device so as to compensate for such variations of residual elasticity. As shown, wires from reels 2 are stranded together in a conventional stranding device 1 from which the strand passes to a backtwister 9 rotating in the opposite sense to the strander 1, both strander 1 and backtwister 9 being 'driven through suitable gearing from an electric motor 18. The backtwister 9 comprises a pair of rolls 11 and 12 about which the strand makes idle turns. From the backtwister the strand is drawn over pulleys 26, 27 and 28 by the winch 23 and is taken up on a reel 25. The pulley 28 is carried by an axle 29 mounted for rotation in a bearing 31. Any elasticity remaining in the strand causes the pulley 28 to rotate about its vertical axle 29 so bringing a contact member 32 mounted thereon into contact with either of members 33 or 34 depending upon the sense of the rotation and so completing an electric circuit operating an electric motor 35 causing the motor to rotate in one sense or another depending upon which of members 33 or 34 is contacted by the member 32. The motor 35 drives the outer cage 36 of a differential gearing through which the winch 23 is driven from the main motor 18 through shafts 24 and 37. The speed of rotation of shaft 24 and therefore of the winch 23 is varied relatively to the speed of the backtwister 9, and therefore the speed at which the strand is drawn through the apparatus is varied so altering the number of backtwists applied at 9 relatively to the twists applied at I to nullify the residual elasticity. When the finger 32 breaks contact with either of the members 33 or 34 the motor 35 stops and the shafts 24 and 37 again rotate at the same speed. In a modification the differential gearing can be interposed between the strander 1 and backtwister 9. The axle 29 may be replaced by a deformable silk or nylon strand. The pulleys 26, 27 and 28 may be arranged horizontally. Instead of the motor 35 an electromagnetic brake acting upon the cage 36 may be operated through the contacts 32, 33 and 34, the shaft 24 in this case operating at a higher speed with the brake off than is necessary to correct normal elasticity and the braking effect would cause variations in the reduction of speed of the shaft 24 to obtain the desired result.
Patent GB-306052-A (GB)
Title: Improvements in the production of sulphonic acids
IPC: C07B45/02
Filed: 1927-09-14
Abstract: 306,052. Johnson, J. Y., (I. G, Farbenindustrie Akt.-Ges.). Sept. 14, 1927. Sulphonic acids; ethyl chlolsulphonate.-Sulphonic acids are prepared from unsaturated aliphatic or hydroaromatic hydrocarbons or their substitution products by treating them (1) with sulphonating agents in the presence of such compounds as are known to form, the sulphonating agents, additive products of the oxonium, ammonium, or sulphonium type, or f2) with esters of chlorsulphonic acid. Suitable compounds for use under (1) above are diethyl sulphide, diethyl ether, ethyl or methyl acetate, diethylene oxide, and pyridine, or substances furnishing such compounds, may be employed. Similarly, the reaction mixture mav comprise substances furnishing an ester of chlorsulphonic acid, such as an unsaturated compound other than that to be sulphonated. An excess of sulphonating agent must be employed when applying the process to unsaturated aliphatic acids containing one or more hydroxyl groups. In one example, oleic acid is treated with chlorsulphonic acid ethyl ester, (prepared from sulphuryl chloride and ethyl alcohol or from ethylene and chlorsulphonic acid), and when the reaction is complete the mixture is diluted with water, treated with sulphuric acid, and boiled under reflux. The initial product is stated to be the ethyl ester of a sulphonic acid containing chlorine, which is hydrolyzed by the boiling treatment, giving the free acid. The chlorine can be replaced, if desired, by treatment with reagents such as alkalies or amines. In another example, oleic acid is treated with a mixture of chlorsulphonic acid and ether, the mixture being poured into water when the reaction is complete, and in a further example tetrahydrobenzene is treated in the same way, the reaction proceeding in each case as in the first example; it is stated that rubber, balata, and like products can be treated similarly. In the concluding example, oleic acid is sulphonated with a mixture of fuming sulphuric acid and ether.
Patent GB-475983-A (GB)
Title: Improvements in and relating to tool holding chucks
IPC: B23B31/02
Filed: 1936-09-04
Abstract: 475,983. Chucks. AMERICAN MACHINE & FOUNDRY. CO. Sept. 4, 1936, No. 24205. Convention date, July 3. [Class 83 (iii)] A tool-holding chuck has a body provided at one end with gripping means and having an axial bore and radial slots, a cylindrical stop being located in the bore and being connected by a transverse member, lying in the radial slots, with an outer member rotatable on the body to adjust the stop axially in order to engage the end of the tool The chuck comprises jaws 19 abutting axially against a loose bush 20 in the body 10 and moved radially by a bevelled screw cap 18, springs between the jaws tending to move them apart. The tool 21 abuts axially on a pin 16 secured by a reduced end 16b and a screw 17 in a cross member 12 which is slidable axially along slots 11 in the body 10 has screwed ends engaging an internally screwed sleeve 13 rotatable on the body. Axial adjustment of the pin 16 is effected by rotation of the sleeve 13 which is locked against a shoulder 14 of the body by a nut 15. The lower end of the pin 16 is reduced at 16a to enter the bush 20 or the jaws, when short tools are used, and the pin may be replaced by others of different length. The cap 18 is retained by spring ring 23. The pin 16 forms an adjustable depth stop for the tool and enables broken drills &c. to be used in the chuck.
Patent GB-695030-A (GB)
Title: Method of and apparatus for treatment of agricultural products
IPC: A01F7/00
Filed: 1950-10-04
Abstract: 695,030. Silage; thrashing-machines; preparing fodder. BUEN, A. A. Oct. 4, 1950 [Oct. 18, 1949], No. 24249/50. Classes 5(i), 5(ii) and 58 [Also in Group II] Apparatus for thrashing grain or for subjecting grass, plants and the like to a crushing, beating or pulping action prior to storage in silos to provide. a reserve of cattle food comprises one or more rotary beaters 4 and a rotary fan 2, 3 carried by a common shaft 6 and accommodated within a cylindrical housing 1 having an inlet 8 and an outlet 10 for the treated material, the outlet being directly exposed to the fan and beaters. The effective area of the inlet may be adjusted by fitting interchangeable screens 9. The beaters may act in conjunction with a part-cylindrical partition 11 provided with an opening 12 opposite the outlet 10. The opening may be closed by a removable damper 13. The partition, which may have its inner surface serrated or formed with teeth or ribs, may consist of upper and lower parts hinged together at 14, the lower part being adjustable about the hinge. The beaters comprise substantially oblong plates with V-shaped recesses to provide pairs of teeth. The housing is provided with a plate 18 to guide the treated material towards the outlet. The latter may have extending therefrom an upstanding assembly of tubular elements forming a discharge funnel terminating at its upper end in a laterally bent part. The shaft 6 carrying the fan and beaters is driven from a tractor or like apparatus by means of a belt 16 and a pulley 17. In a modification, Figs. 3 and 4 (not shown), the outer ends of the beaters co-operate with ratchet teeth disposed substantially in a semicircle and secured to the inner face of the lower part of the housing around the inlet, and means are described for mounting the housing on a tractor.
Patent GB-618271-A (GB)
Title: Novel or improved mould for use more particularly in casting concrete blocks and shapes
IPC: B28B7/00
Filed: 1946-08-15
Abstract: 618,271. Moulds for concrete blocks &c. LILLESHALL CO., Ltd., and CADMAN, R. O. L. Aug. 15, 1946, No. 24274. [Class 87 (ii)] A mould comprises side walls 10, end walls 11 and a base 12 which rests upon ledges 16, Fig. 3, on the inside of the side or end walls. Each side or end has a right-angle flange 17 or 19 at one end and a part 18 or 20 at its other end which extends beyond the corner of the base. The sides and ends are clamped at each corner by inserting pin 25 through aligned holes in a U-shaped clamp 22 and in the flange 17 or 19 and the extended part 18 or 20, and then driving a wedge 27 through a slot in the pin, and a similar wedge.27 through slots in the clamp 22 to force the flange back until its inner corner is in alignment with a positioning mark on the part 18 or 20. The base 12 is held down at one side by a liner 15, which may be integral with one side, and at its ends by integral ribs 28. Bars 29 having turned down ends 30 extend across the top of the mould. A bar 31 held in position by a wedge, extends across the bottom of the mould and passes through a flange 32 on the base. The base may be strengthened by plates 39. Holes may be made in the end walls, beneath the base to lighten the mould. A core 33 having a removable lid 36 may be fastened to the base by driving a wedge 27, through a slot in a pin 34 against a bridge 35.
Patent GB-165867-A (GB)
Title: Improvements in and connected with sheet position indicating means for typewriters and like machines
IPC: B41J29/44
Filed: 1919-03-03
Abstract: 165,867. Harrington, F. C. A. March 3, 1919. No Patent granted (Sealing fec not paid). Locking-devices; margin stops.-A device for locking the platen roller when the bottom edge of a sheet approaches the printing line, comprises one or more members which are normally held in contact with the platen roller and upon being released permit the device to move into locking engagement with the platen roller; the device is supported by the platen shaft or by a part in alignment or concentric therewith. The device shown in Fig. 1 comprises a bar a, having arms c which are formed with slots d, for engaging the platen shaft e or bushes f thereon, and are guided by lugs k on the end plates g of the carriage. The bar a is normally held in contact with the platen roller b by the sheet. When the bottom edge of the sheet releases the bar, the device is moved forwards by springs l or by gravity, the bar entering a recess p in the apron q, and lugs o on the arms c engage lugs n on the platen roller. The device is restored to the normal position by depressing the levers s for releasing the feed-rollers t, the levers s being connected to levers v by links u which are provided with cams w engaging projections m on the arms c of the device. The rear ends of the arms are covered by plates x.