baber/WOPTO huggingface dataset:
Patent GB-215197-A (GB)
Title: Dental tool
IPC: A61C1/14
Filed: 1923-05-16
Abstract: 215,197. Hinchey, C. E. May 16, 1923. Dental engines.-A head for a dental drill or burr comprises a T-shaped casing in one arm of which a driving shaft 5 and gear 6 are mounted, and in the other are mounted a gear-ring 7, a tapered split chuck 9, ball bearings and adjustable caps for operating the chuck and adjusting the bearings. The gear-ring 7 is tapered internally to form a clutch with the chuck 9 which has a sleeve 11 extending through the cap 12 and is floatably mounted around the drill spindle 14 on a flanged ring 15 supported on ball bearings. Adjustment of the cap 12 forces the chuck into engagement with the spindle. The upper end of the spindle is rotatably mounted in a sleeve 17 which is recessed at 21 to form a guide for the gear-ring 7 and has a flange 18 forming with a cap 19 a box for ball bearings 20.
Patent GB-455505-A (GB)
Title: Improvements in and relating to processes and apparatus for splitting hydrocarbons
Filed: 1935-05-03
Abstract: <PICT:0455505/III/1> Oils, coal and lignite tars &c., are cracked by vaporizing the oil, passing the vapours to a fractionating column, withdrawing condensate from a number of levels in the column, and subjecting each condensate in its own tubular heating system to cracking under conditions which are optimum for the said condensate, returning the cracked products to the column and removing light end fractions from the top of the column.  The cracked condensates are preferably returned to the column at a point above the point of their withdrawal.  Crude tar is pumped from a storage tank a through a coil heated in a furnace c into a fractionating tower d, where the heated tar is separated into vapours and liquid residues which are removed through a line o and cooler p to storage.  The tower is provided with a number of bubble trays e<1>, e<2>, e<3>, e<x> on which condensates are collected. These condensates are passed through descending pipes g into tubular cracking units m located in a furnace l and the cracked products are returned to the tower through ascending pipes n. The speed at which the condensates pass through the units m may be increased by the use of pumps or by introducing gases or liquids through injectors.  Part of the liquid residues may similarly be withdrawn through lines q, cracked, and recirculated.  Vapours pass off through a line k to a dephlegmator s from which reflux is recycled by a pump i and line h, with or without cracking in a coil w, to the tower d.  U.S.A. Specification 1,934,049 is referred to.
Patent GB-1397024-A (GB)
Title: Centrifugal speed governor and fuel injection pump assembly for an internal combustion engine
IPC: F02D1/04
Filed: 1973-03-20
Abstract: 1397024 Centrifugal governors ROBERT BOSCH GmbH 20 March 1973 [21 March 1972] 13247/73 Heading G3B [Also in Division F1] The quantity adjusting rod 31 of a fuel injection pump 10 is controlled by a centrifugal governor 15 having a weight carrier 16 provided with a transmitter element 32 of a mechanicalelectrical transducer 33, the carrier 16 being driven from the cam-shaft 23 of the pump through a resilient coupling 25. The element 32 is in the form of a sintered metal toothed disc which co-operates inductively with a fixed pick-up coil (36) wound on the base of a U-shaped cross-bar (35). When the speed increases the governor 15 leftwardly displaces a regulating member 26 and a block 29 slidable on a rod 30. The block 29 is articulated at 27 to one end 28a of a lever 28 angularly displaceable about a pivot 28b and coupled at its opposite end to the rod 31.
Patent GB-589044-A (GB)
Title: Improvement in innersole and method of making the same
IPC: A43D43/06
Filed: 1944-07-11
Abstract: 589,044. Insoles. AYERS, F. L. July 11, 1944, No. 13272.. [Class 17 (ii)] [Also in Group XV] The sewing rib of an insole is reinforced by a strip of tape which is cemented to the upper face of the insole around the fore part and, if desired, around the shank and the heel, before or after channelling, the strip being folded back upon itself above the root of the channel, so that the rib is held folded inwardly when cemented to the upper layer of the strip. The upper and lower layers of the strip may be secured together near the fold by cement or stitches. As shown in Fig. 3, the folds 8, 9 of the strip 5 are secured by stitches 7 and a second strip 10 is cemented to the channel 2 and the rib 3. More than one strip 10 may be superposed. In a modification, Fig. 9, the strip 5 has a double fold 90, in another modification, Fig. 16, the layers of the strip are secured by a strip 20 of adhesive applied under the fold line, or the whole width of the upper layer may be cemented to the lower layer by a light adhesive. The layers need not be secured together if a highly tacky cold process cement is used for attaching the strip to the insole and the turnedback rib is set by pressing hammers. The strip may be applied to the margin of the insole by a suitable tape-applying machine, which may include a folder 35 and a channel-engaging gauge 36, Fig. 23. When the strip is applied flat, Fig. 20, the strip of adhesive 20 at the fold line may be applied progressively by a nozzle 11, the strip being folded subsequently.
Patent GB-1321558-A (GB)
Title: Direct gas cooled rotors for use in rotary electric machines
IPC: H02K3/24
Filed: 1971-05-05
Abstract: 1321558 Gas cooling rotors of dynamoelectric machines HITACHI Ltd 5 May 1971 [11 May 1970] 13301/71 Heading H2A In a rotary electric machine directly gas cooled rotor comprising a shaft 1 carrying a rotor core 5 having around the periphery thereof axially extending winding slots 6 each having at the bottom thereof an axially extending sub-slot 8 and accommodating winding conductors 11 held in place by wedges 4 the conductors and wedges having mutually matching radially extending gas vents 12, 13 disposed at intervals in the axial direction, uniformity of winding cooling is stated to be obtained by so disposing the conductor vents as to form at or adjacent the axial centre of the rotor a gas passage or passages 12a extending perpendicularly outwardly from the sub-slot 8 and, on both sides of the passage or passages 12a, further gas passages 12b which also extend outwardly from the sub-slot but are inclined towards the central passage(s) with those adjacent the central passage(s) intersecting the latter, the passages and vents carrying cooling gas, e.g. hydrogen or air, from the sub-slots to the rotor periphery.
Patent GB-133577-A (GB)
IPC: G06G1/00
Abstract: 133,577. Windle, E. Jan. 30, 1919. Plane-trigonometry calculators; slide-rules.- An apparatus for the solution of right-angled triangles and for use as a protractor or drawing instrument of the kind comprising a quadrant having a pivoted arm and a sliding vertical member, is provided with logarithmic as well as ordinary scales so that the sliding member may be replaced by a rule bearing a logarithmic scale to act as a slide rule. The base B, radial arm A, and sliding vertical member C are provided with similar evenly graduated scales a and with logarithmic scales b, that on the arm A co-operating with a double scale e to half the radius. The quadrant D is graduated in degrees and gradients, and a groove G is provided in the base B to carry the member C or a logarithmically graduated rule. The joint F is formed as a flat knuckle joint to allow the device to lie evenly on the paper.
Patent GB-107129-A (GB)
Title: Improvements in and relating to Lathes and like Machines.
Inventor: KELLY ERNEST MALCOLM
IPC: B23G1/04
Filed: 1916-09-21
Abstract: 107,129. Kelly, E. M. Sept. 21, 1916. Turning.-Lathes, particularly heavy screw-cutting lathes, automatically take off the cut, disengage'the feed-nut, clutch the rack-pinion train to the back-shaft for quick return of the saddle, restore the cut and then stop the saddle. The operator adds the depth of the next cut and closes the nut for a repetition of the cycle. The saddle carries stop rods 3, 12, 37, Fig. 1, coacting with a fixed stop 1 on the bed. The rod 3 is connected to a bevel-quadrant 4, Fig. 2, and through a gear train 9 to the feed-screw 10. The rod 12 acts through a bell-crank 14 linked to a rod 15 connected to the nut controller 19, Fig. 4. A cam surface 24, bowl-carrying rod 22, and weighted lever 25, Fig. 1, ensure complete opening. An arm 28 of the lever 25 engages the clutch 29 in the rack train 34. The rod 37 disconnects the clutch through an overbalancing lever 38 and toothed gearing 40. A hand-lever 42 provides for closing the split nut.
Patent GB-135389-A (GB)
IPC: H01T4/12
Abstract: 135,389. Western Electric Co., (Western Electric Co.). Feb. 14, 1919. Protective arrangements. - Electrical circuits are protected against lighting, abnormal voltages, &c. by electrodes supported in an insulating body by a low-melting-point glass which allows the electrodes to establish an earth connexion in case of a dangerous temperature. Electrodes 8, 9 of carbon are disposed in two longitudinal slots in alinement in a substantially rectangular insulator 7, a gauge 11 is temporarily inserted through a third slot 10 at right-angles and fillets 14 of a lead borate glass, consisting approximately of 85 per cent lead oxide and 15 per cent boric acid, are run on to fix the electrodes. In use, the spring clips between which the electrodes are held cause them to come into contact if the temperature rises above 360‹ C., the melting-point of the glass. The accumulation of dust is prevented by the elimination of air circulation across the sparkgap.
Patent GB-618440-A (GB)
Title: Manufacture of sulphur-containing organic polymers
IPC: C08L81/00
Filed: 1946-05-04
Abstract: A process for the production of acetal thioplasts having terminal hydroxyl groups comprises degrading an acetal thioplast of higher molecular weight by heating a mixture thereof with an acid reagent and water.  The process is preferably applied to thioplasts prepared from di-(chlor alkyl) formals, but the corresponding acetaldehyde, propionaldehyde or butyraldehyde products may be used.  Acid agents which may be used in amount 1-10 per cent of the weight of the thioplast include aqueous hydrochloric acid, sulphuric acid, orthophosphoric acid, acetic acid, chloracetic acid and alkali metal bisulphates.  The process may be carried out by heating the coagulum formed by the acidification of an aqueous suspension of the thioplast, the aqueous layer being decanted at intervals. Alternatively, 95-98 per cent sulphuric acid may be worked into the thioplast on heated rollers, and the mass then heated in an oven. The last traces of water are removed by distillation under reduced pressure.  In an example, a thioplast formed by reacting di-(betachlorethyl) formal with aqueous sodium tetrasulphide containing an emulsifying agent, followed by treatment with caustic soda, is coagulated by the addition of 7 per cent of hydrochloric acid and the coagulum heated at 90 DEG  C. for 16 hours with decantation of water.  The products may be used as plasticisers for polyvinyl acetal, and urea formaldehyde resins, and in the production of cold setting compositions described in Specification 618,449.
Patent GB-807711-A (GB)
Title: Improvements relating to liners for tube or ball mills
Inventor: FRANKERT OTTO PEDER
IPC: B02C17/22
Filed: 1954-05-10
Abstract: 807,711. Ball &c. mills. SMIDTH & CO. A. S., F. L. May 3, 1955 [May 10, 1954], No. 13600/54. Class 59 The interior of a ball or tube mill or of a coarse grinding chamber thereof contains a charge of grinding bodies varying in size and has a lining consisting of plates 3 presenting substantially flat surfaces 4 which, when the plates are assembled, run as continuous parallel helices around the lining in the direction opposite to that of the rotation of the mill as viewed from the feed end of the mill, these surfaces being separated by grooves 5, which are narrower in width than the surfaces and have inclined sides, the depth of the grooves initially being not more than half the thickness of the plates. Preferably, the pitch of the helix on which the grooves lie is between 30 degrees and 60 degrees e.g. about 45 degrees. The mill, Fig. 7, is divided into two chambers by a grid 17, the left-hand chamber having lining plates 19 as above described and the right hand chamber having lining plates 20 with rounded helical projections separated by grooves, the remaining lining plates 21 in the right-hand chamber being of opposite pitch from that of the plates 19, 20 to avoid clogging a discharge grid 18. In a modification, Fig. 9 (not shown), the mill has a single chamber.
Patent GB-850364-A (GB)
Title: Improvements relating to compositions of the modified-tar type
Inventor: SAUL WALTER
IPC: C08L95/00
Filed: 1956-05-03
Abstract: A composition for use as a joint-filling material and as a binder for airfield-runway, road and pavement surfacings, comprises tar or a similar material together with an unvulcanized rubber-like copolymer of a conjugated diene and an olefinically-unsaturated ketone copolymerizable therewith, the weight of the tar or similar material being greater than that of the rubber-like copolymer.  Suitable conjugated dienes are butadiene, isoprene, 2, 3-dimethylbutadiene, and chloroprene. The olefinically-unsaturated ketone may be methyl isopropenyl ketone, methyl vinyl ketone, phenyl vinyl ketone, or p-acetyl-styrene.  A rubber-like copolymer may be obtained by copolymerizing 40% to 90% by weight of butadiene and correspondingly 60% to 10% by weight of methyl isopropenyl ketone. Instead of tar, a pitch may be used which may have a pitch softener such as an anthracene oil, a heavy creosote oil, a gas naphtha, or a petroleum distillation product obtained when petroleum is processed for the production of lubricating oils. Other pitch softeners include tricresyl phosphate, triphenyl phosphate dibutyl phthalate, rosin oils, rosin esters, and tall-oil esters.  The pitch softener may form 5% to 50% of the weight of the pitch.  The rubber-like copolymer may be in the proportion of 1% to 15% by weight of the tar or similar material, and a fibrous filler such as asbestos of up to 10% by weight of the tar, may be incorporated in the composition.  Small proportions of one or more non-fibrous fillers such as powdered limestone whiting, or brick-dust may also be incorporated.
Patent GB-642279-A (GB)
Title: Improvements in and relating to bottle filling machines
IPC: B67C3/26
Filed: 1948-05-20
Abstract: 642,279. Bottling. POWLEY, R. J. May 20, 1948, No. 13684. [Class 125(ii)] A filling nozzle for a bottle filling machine comprises closely fitting tubes 1, 2, the outer tube 1 being rotatably adjustable in relation to the inner which communicates with a valved liquid supply passage and at its lower end discharges into a bottle either directly or through holes 3 in the outer tube. The inner tube wall is grooved to form a gas displacement passage 4 communicating through a pipe 6, in the case of gasified liquids, with the upper part of the liquid reservoir, and through vent orifices 7 in the outer tube with the gas space of the bottle. Orifices 7 are spaced along the length of the tube and set e.g. with three orifices at 120 degrees round it so that by rotation of the outer tube a selected orifice may be opened and the others closed. In a modification, the outer tube may be fixed and the inner rotatable and project ing about ¥in. below it with a solid end having tommy holes by means of which it can be twisted.
Patent GB-1451661-A (GB)
Title: Control of sewage treatment
IPC: C02F3/00
Filed: 1972-06-22
Abstract: 1451661 Photo-electric measuring apparatus ENGLISH CLAYS LOVERING POCHIN & CO Ltd 24 Sept 1973 [22 Dec 1971] 13713/73 Divided out of 1431541 Heading G1A Apparatus for measuring the rate of settling of suspended solid matter in a sewage liquor comprises a container having an inlet and an outlet, means for supplying sewage liquor to the container, a light source for projecting a beam into the container, a light responsive receiver positioned so as to receive light transmitted through or reflected from the contents of the container, an electrical circuit for detecting a change in response of the receiver caused by movement of the interface  between the settling solid matter and the supernatant liquor past the light source and receiver, and means for determining the time interval between the instant when the supply of liquors to the container is stopped and the instant when the change in response of the receiver occurs. As shown in Fig. 1a the container 1 is cylindrical, has an inlet 3, an outlet 4 and an overflow 5, and has mounted in its end-wall an optical head 8 having an end window 9 and containing the light source, a photo-cell for receiving light directly from the source and a photo-cell for receiving light from the contents of the container. As shown in Fig. 3, the container 10 has two compartments separated by a baffle and a photoelectric detector system as shown in Fig. 5 mounted in one compartment. The detector shown in Fig. 5 comprises a light source 22, two light guides 24, 25 and a photo-cell 23. The system shown in Fig. 3 operates as follows. A first timer 13 is initially operated to energize the solenoid of an air lift pump 12 to supply sewage liquor to the container for a pre-set time. At the end of its time interval, timer 13 causes a second timer 14 to be operated, the time period of this timer being related to a given solids content range of the sewage liquor. This time period is for example 100 seconds. A third timer 15, having a time period which is a fraction of that of timer 14, e.g. 10 seconds, is actuated either when timer 14 reaches the end of its period or when a photo-cell operated switch 16 is operated upon the photo-cell detecting the interface. A logic system 17 then operates one of high, normal and low indicators, via a hold/display device 18, depending upon the order in which inputs from the timers 14, 15 and switch 16 reach the logic circuit. Details of the circuitry shown in Fig. 3 are described with reference to Figs. 6 and 7 (not shown).
Patent GB-821478-A (GB)
Title: Improvements in or relating to pocket knives
IPC: B26B1/02
Filed: 1957-05-01
Abstract: 821,478. Knives. INMAN, R. April 22, 1958 [May 1, 1957], No. 13809/57. Class 30 A pocket knife comprises a tanged blade 3 pivoted between the sides 2 of a folded U-section frame of spring steel, the web 6 of the frame being cut at 9 and 11 to form a spring tongue 7 bearing on one or other side of the tang 15 to urge the blade to open or closed position. In open position the spring end lies clear of the blade the face 21 of the tang bearing on the bridge 12 of the frame. Scales may be applied to the frame and in a modification the frame is of reduced width for enclosure in a one-piece handle formed of diecast or extruded metal or plastic, pushfitted on the frame or secured by cement.
Patent GB-370694-A (GB)
Title: Improvements in or relating to processes of recovering metallic aluminium from material containing the same
IPC: C22B21/00
Filed: 1931-05-11
Abstract: <PICT:0370694/III/1> <PICT:0370694/III/2> Aluminium is recovered from material containing it such as borings, turnings, skimmings, dross, &c., by introducing the material in a solid or partially solid state into a chamber with insufficient chlorine to react with the entire content of aluminium but sufficient to produce the heat necessary to melt the unreacting remainder of the aluminium.  Usually the chlorine to react with 5 per cent of the aluminium content will be required. The aluminium-containing material may be treated in a rotatable drum 1 from which the atmosphere is preferably excluded lined with a refractory 2 and containing loose brick 3.  The material is charged from a funnel 18 into a stationary housing 14 and is fed into the drum preferably heated to at least 200 DEG  C. by a hollow conveyer 19 rotated by a suitably actuated gear 20.  Chlorine simultaneously enters the drum through a tube 21, the drum end of which may be made of silica or other heat-resisting material. Molten aluminium is withdrawn through a tap-hole 7 and aluminium chloride together with the volatile chlorides of impurities such as tin, lead, iron, &c. that may be present with the aluminium pass into a condenser 27 where the less volatile lead and copper chlorides &c. condense.  Iron chloride is removed in a condenser 30 leaving pure aluminium chloride to be recovered in a condenser 32, having a vent 33.  Fig. 2 shows a modified apparatus for the process in which the material enters at one end 43 of the drum and the chlorine through a tube 66 at the other end.
Patent GB-199013-A (GB)
IPC: G02B13/18
Filed: 1923-05-28
Abstract: 199,013. Zeiss, C. [Firm of]. June 10, 1922, [Convention date]. Lenses.-Photographic objectives consisting of three lenses separated by air, the two outer ones being collective and the middle one dispersive, (such objectives being described, for example, in Specifications 22607/93 and 13061/02), have the last surface deformed.
Patent GB-316703-A (GB)
Title: Improvements in and relating to the separation, isolation and purification of aromatic hydroxy acids
IPC: C07C51/43
Filed: 1928-05-12
Abstract: 316.703. Graesser-Monsanto Chemical Works, Ltd., and Hudson, D. P. May 12, 1928. Hydroxyaromatic carboxylic acids ; p-hydroxybenzoic, salicylic, o-cresotinic and 5-methyl-6- hydroxy benzoic acids.-Isomeric or closely related aromatic hydroxy carboxylic acids are separated bv selective acidification of their alkali salts, or by selective neutralization of the free acids. Thus, the mixture of the acids may be fractionally dissolved in alkali solution, or a solution of the alkali salts of the acids mav be fractionally precipitated by a mineral acid, or the weaker acids may be displaced by the addition of a stronger free hydroxyaromatic acid. An immiscible solvent may be employed, in which the weaker acid is the more soluble. According to examples : (1) a by-product in the manufacture of salicylic acid, which contains the latter admixed with p-hydroxybenzoic acid is dissolved in caustic soda, and fractionally precipitated by means of sulphuric acid; the p-hydroxybenzoic acid being precipitated first; (2) a mixture of salicylic and p-hydroxybenzoic acids is boiled with less than the equivalent quantity of aqueous caustic soda; on cooling, p-hydroxy benzoic acid separates; (3) salicylic acid is used to displace phydroxybenzoic acid from a mixed solution of the two acids; (4) a by-product from the manufacture of o-cresotinic acid, which contains the latter mixed with 5-methyl-6-hydroxybenzoic acid is dissolved in alkali, and fractionally precipitated with acid; o-cresotinic acid being the first to separate. By making a preliminary test, the whole of the acid necessary to precipitate, completely, the weaker acid may be added at once.
Patent GB-118489-A (GB)
Title: Process for Purifying Camphor.
IPC: C07C49/437
Filed: 1917-09-28
Abstract: 118,489. Marks, E. C. R., (Du Pont de Nemours & Co., E. 1.). Sept. 28, 1917. Camphor.-Crude camphor is purified by heating in a closed retort to 300-500‹ F., whereby the camphor oil is modified so that it can be separated from the camphor, either by dissolving out the camphor by an organic solvent (petroleum spirit, alcohol, &c.) and crystallizing, or by subliming the camphor.
Patent GB-125308-A (GB)
Title: Improved Process and Apparatus for Operating Internal Combustion Engines by Means of Acetylene.
Inventor: SIEBER JACOB
IPC: F02B43/00
Filed: 1918-08-31
Abstract: 125,308. Sieber, J., and Fischer, H. May 4, 1918, [Convention date]. Drawings to Specification. Purifying and treating gases.-Internal-combustion engines are actuated by acetylene which is passed through an aqueous solution of ammonia which may contain a small proportion of ether and camphor and is afterwards heated before issuing through a nozzle into the engine induction pipe.