baber/WOPTO huggingface dataset:
Patent GB-1332275-A (GB)
Title: Low torque automatic screwdriver
IPC: B25B23/145
Filed: 1972-05-25
Abstract: 1332275 Powered screwdrivers DRESSER INDUSTRIES Inc 25 May 1972 [9 June 1971] 24702/72 Heading B3N  A powered screwdriver comprises in combination an air motor, a drive end, a clutch 19 to disconnect drive at a predetermined torque and disconnect means operative concomitantly and in parallel with uncoupling of said clutch to shut-off the air supply, said disconnect means including a shut-off valve 31 in an air inlet, a slidable throttle rod 40 for operating said valve, gear means 91 movably radially relative to the axis of tool rotation between a first position effectively locking said throttle rod against movement in a direction for closing said valve, and a second position enabling said rod movement for closing said valve, and cam means operatively associated with said drive end for shifting said gear means from said first to said second position. In operation guide piece 22 engages a screw and is forced inwardly. Further pressing engagement on the bit 14 forces drive shaft 17, clutch 19, and throttle valve rod 40 rearwardly so that valve 31 is opened to allow air to the motor. The clutch has a driving part 63 connected to output shaft 17 by flange 58 and balls 77. At a predetermined torque the balls run up cams 74 and force cage retainer 83 against the action of spring 84. Thus the clutch is disengaged. For undoing screws the cam rise is steeper. Gear 91 is normally biased by spring 98 such that its centre of gravity is on centre line 100 which is offset from centre line 101. Thus during rotation centrifugal forces on the gear augment the force applied by spring 98. The gear acts on face 91 of throttle rod portion 41 to prevent valve 31 being forced to a closed position by air pressure acting thereon. When the predetermined torque is reached output shaft 17 stops but the driving clutch part and the gear continue to rotate. The inner end portion of the output shaft that engages the gear is square, and on relative rotation between the shaft and the gear causes the corners of the shaft to act as cams and move the gear against the action of spring 98. This movement aligns a hole 94 with throttle rod portion 41. Air pressure moves the rod to the left causing valve 31 to close and shutoff the motor.
Patent GB-187114-A (GB)
Title: Improvement in or connected with books and the like
IPC: B42F11/00
Filed: 1921-09-17
Abstract: 187,114. Glover, A. H. Sept. 17, 1921. Bookbinding; block holders.-Refills of leaves are secured in book covers or binders by two interlocking plates A, B, Fig. 1, attached to the cover and refill respectively, the plate A being provided with a stud or studs C for engagement with an L-shaped slot or slots E in the plate B. Tongues H upon the plate A provide means for attachment to the cover, and plate B may be provided with similar tongues J to engage with a canvas strip used in binding the refills, or the plate itself may be of U shape to embrace the edge of the refill to which it is secured by staples or similar means. The plate A is preferably longer than the plate B, and has a pin D at its lower end to register, as shown in Fig. 3, with a hole or recess F in the plate B to prevent accidental disengagement of the plates; alternatively, as shown in Fig. 4, a strip G is pivoted at one end to the plate A, its other end being bent at right-angles to abut against the rounded end of plate B when the plates are interlocked. The tongues H, J may be separate members attached to the plates, or they may be formed by punching strips therefrom.
Patent GB-609315-A (GB)
Title: Improvements in or relating to phenolic synthetic resinous glue compositions
IPC: C08G8/06
Filed: 1945-09-24
Abstract: An acid hardenable synthetic resinous glue composition is made by intimately mixing with an acid hardening phenolic synthetic resin. not more than 20 per cent by weight of furfuraldehyde, preferably 4-5 per cent.  A volatile liquid, such as acetone, benzene, trichlorethylene, amyl acetate, methyl alcohol and ether, may be present as 2-20 per cent by weight, but preferably 4-5 per cent of the composition, to cause frothing on the application of heat and/or reduced pressure during the bonding process.  Specifications 609,313 and 609,314, [both in Group XXXIII], are referred to.
Patent GB-351309-A (GB)
Title: Slicing machine
IPC: B26D1/143
Filed: 1930-08-19
Abstract: 351,309. Slicing-machines. HACHENEUER, W. and HACHENEUER, W., 50, Mallinckrodtstrasse, Dortmund, Germany. Aug. 19, 1930, No. 24773. [Class 28 (ii).] In a disc knife reciprocating- table machine, the table is reciprocated by a roller 11 on the chain 8 engaging a vertical slot in a bracket 13 adjustably secured to the table. The chain 8 is driven bv chain and other gearing from the knife driving-mechanism.
Patent GB-412446-A (GB)
Title: Improvements in or relating to well pipe joints
IPC: E21B17/042
Filed: 1933-09-07
Abstract: 412,446. Pipe joints. HYDRIL CO., 714, West 10th Street, Los Angeles, U.S.A. Sept. 7, 1933, No. 24835. Convention date, July 17. [Class 99 (i).] In a screw - threaded joint for well pipes, the spigot 12 and socket 10 have a two-step thread and three pairs of interengaging surfaces or shoulders, the clearances between which are so arranged that the internal surfaces 18, 39 are first engaged, the external shoulders 28, 42 are engaged next and the intermediate shoulders 20, 34 are the last to engage. The clearance between the shoulders 28, 42 is such that they are engaged before the socket is stressed beyond the elastic limit. The end of the spigot is tapered at 39 engaging the similarly tapered surface 18, and the end of the socket is bevelled at 28 and engages in a recessed shoulder in the spigot having a face 42 parallel to the face 28. The shoulders 20, 34 have radial seating faces and are preferably located between the stepped threads 32, 33. The minor diameter of thread 32 is greater than the major diameter of thread 33. The sum of the cross-sectional areas of spigot and socket at B and D is at least as great as the area of the socket at A or of the spigot at C. The area at A or C is greater than half the area at N.
Patent GB-165429-A (GB)
Title: Improvements in or relating to connections of electrical conductors
IPC: H01R4/30
Filed: 1920-08-27
Abstract: 165,429. Wilson Welder & Metals Co., Inc., (Assignees of Churchward, A.). June 19, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Wire and ribbon resistances.-The ends of resistance elements where connected to other conductors such as terminal screws are coated with a metal of higher conductivity than the connected conductor and preferably with the same metal as that of which the terminal connection is composed. Rheostat connections are thus kept comparatively cool. The coating may be applied by electrodeposition, welding or hot rolling under pressure or in other ways. A copper-plated nichrome resistance strip with a brass terminal screw having a spring washer thereon is described.
Patent GB-689385-A (GB)
Title: Improvements in or relating to agitating machines for use in opening wool and like textile fibres
IPC: D01G9/02
Filed: 1949-09-28
Abstract: 689,385. Opening wool &c. ROBERTS, (ENGINEERS), Ltd., and ROBERTS, J. Nov. 8, 1950 [Sept. 28, 1949], No. 24845/49. Class 120(i) In an agitating machine for opening wool and like fibres, of the type comprising a drum or casing within which rotates a shaft carrying substantially radially-disposed beater arms, each beater arm 3 is pivotally secured near its inner end by means of a pivot pin or bolt 4 to a bracket 2 fast on the driving shaft 1 and so arranged that arm 3 can pivot or swing to a limited extent relative to the shaft in the plane of rotation of the arm and can be adjusted radially relative to the shaft axis to vary the distance of its tip from the drum surface. As shown, stops 5, faced with rubber or like resilient material at 6, limit the angle through which arms 3 may pivot, and a plurality of locating holes is provided for each pin 4 in the bracket and/or the inner end of the arm to permit the radial adjustment of the arm. The axis of the drum may be horizontal; inclined or vertical.
Patent GB-702496-A (GB)
Title: Process for the emulsion polymerisation of unsaturated compounds and the polymers so produced
IPC: C08F2/24
Filed: 1951-10-25
Abstract: In the process of the parent Specification the separate phase of monomer which is to be polymerized is present in the form of emulsified drops having a maximum diameter of 0.1 millimetre as well as in the form of liquid drops or particles of unemulsified monomer. Preferably the replacement of the whole or part of the monomer lost by polymerization is made by the addition of an aqueous emulsion of monomer to the aqueous phase, this replacement emulsion being preferably prepared by stirring monomer together with a sufficient quantity of a concentrated emulsifer solution to form a gelatinous mass and subsequently diluting this mass with water.
Patent GB-1316811-A (GB)
Title: Microphone
IPC: G01P3/54
Filed: 1970-05-22
Abstract: 1316811 Microphones MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 May 1970 [26 May 1969(2) 10 June 1969 27 June 1969(2) 9 Oct 1969] 24999/70 Heading H4J A microphone for use in the ultrasonic wave region comprises a disc-like piezoelectric device 4 (Fig. 1) resonant in a flexural vibration mode at an ultrasonic frequency and a funnel-like metal member 7 coupled to the centre portion of the piezoelectric device 4. A plate 1 has protrusions 3 supporting the piezoelectric device 4 and a casing 10 houses the piezoelectric device 4 and the funnel-like member 7. The funnel-like member 7 is aluminium or other metal having a high mechanical Q and thus exhibits relatively low attenuation when used as a vibration transmitting medium. The funnel-like member 7 is connected to the piezoelectric device 4 by a shaft 5. The piezoelectric device 4 comprises two oppositely polarized discs and is bonded to the protrusions 3. The casing 10 is closed at one by a shield plate 8 and the other end has an opening 11 covered by a protective screen 12. The sensitivity characteristic is determined by the size of the casing 10, the effective length of the shaft 5, the angle of the funnel-like member 7 and the coefficient of coupling between the piezoelectric device 4 and the funnel-like member 7. The effective length of the shaft 5 may be altered by applying solder (511), Fig. 7 (not shown), at its outer end. The admittance characteristic depends upon the diameter of the funnel-like member 7 (Fig. 8, not shown). Two separate piezoelectric devices (4, 4<SP>1</SP>), Fig. 10 (not shown), may be attached at spaced locations along the shaft (5<SP>1</SP>) and their resonance frequencies may be chosen to provide a double-peak sensitivity, only one of the piezoelectric devices (4<SP>1</SP>) being supported by protrusions (3). In another embodiment a single bimorph piezoelectric device (13), Fig. 12 (not shown), is connected to a funnel-like member (14) by a ring (21) of bonding agent, instead of by a shaft, which thereby determines the coefficient of coupling. Alternatively (Fig. 15, not shown) the connector is eliminated and the funnel-like member (14) is directly joined to the piezoelectric device 13. A cylindrical member (27), Fig. 16 (not shown), may surround the piezoelectric device (24) and the funnel-like member (26) to determine the standing wave vibrations in the casing (28). Another embodiment has a support plate 29 with a recess 30 (Fig. 19). A piezoelectric device 35 rests on tongues 34 on a plate 31. A funnel-like device 37 is secured centrally of the device 35. Supports 38 held by screws 39 press against the upper surface of device 35.
Patent GB-837705-A (GB)
Title: Improvements in or relating to aircraft
Inventor: KUCHEMANN DIETRICH
IPC: B64C23/00
Filed: 1956-08-15
Abstract: 837,705. Jet-propulsion nozzles. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Aug. 2, 1957 [Aug. 15, 1956], No. 25011/56. Class 110 (3). [Also in Group XXXIII] Fig. 13 is a half plan view of an aircraft, having gas-turbine jet-propulsion engines 43, 44. Air from the compressors is led through duct 50 and valve 51 to a manifold 48 feeding, through ducts such as 52 and valves such as 53, a partitioned manifold 49a ... 49g. Each part feeds nozzles 54 which are elongated spanwise, and exhaust through a slot in the wing leading edge formed by two lips, one lip 55a being shown. Each nozzle may be connected to manifold 49 by a flexible coupling, whereby the directions of discharge of all the nozzles in the XOY plane may be adjusted simultaneously. The slot may taper in depth from zero at the inboard end to a maximum at an intermediate station, thereafter being of constant depth. The valves 53 may control the gaseous flow to be a minimum at the inboard end and to increase uniformly going outboard. A duct 60 controlled by valve 51 supplies gas to a manifold 59 exhausting in a jet sheet over a trailing edge flap 63. Fig. 17 shows an embodiment in which gas is blown forwardly at a wing leading edge through nozzle 21a, 21b over and under an adjustable leading edge flap. Members 65 are adjustable by a drive 67 to vary the effective cross-sections of the nozzle equally, and thus to vary the strength of the jet.
Patent GB-462596-A (GB)
Title: Improvements in moulding pastry and other plastic substances
IPC: A23G3/02
Filed: 1935-09-09
Abstract: 462,596. Moulding pies &c. COX, C. E. Sept. 9, 1935, No. 25013. [Class 87 (ii)] Pastry &c. articles, such as pork pies, arc shaped between two die or mould members on a bed, both members being raised from the bed after the moulding operation and separation thereof being then effected by the application of fluid pressure between them. The mould member 12 rests in a recess on the bed 10 while the die or plunger 13 is carried by a piston rod 14 slidable in a sleeve 15 and actuated by a hand lever 17. The upper end of the rod 14 carries a cup piston 25 working in a cylinder 24 so that on raising the plunger 13 the air in the cylinder 24 is compressed. The rod 14 is hollow and is provided with a valve 30 at its base which is opened by the valve rod 32 contacting with an adjustable stop 33, thus allowing the air in the cylinder 24 to force the mould 12 containing the moulded pie &c. off the end of the plunger 13. The die 13 has a down-turned lip to form the edge of the pie and its surface may be knurled or roughened. In a modification the raising of the die 13 may turn on a cock supplying compressed air to the die face. A lid cutting and trimming member may be substituted for the die 13.
Patent GB-277180-A (GB)
Title: Improvements relating to fire-escapes
IPC: A62B1/06
Filed: 1926-10-08
Abstract: 277,180. Paul, C. Oct. 8, 1926. Body harness.-A device for facilitating escape from the upper parts of buildings includes a rope A on which is knotted near one end a ring C which is engaged by a snap hook B after the end is passed round any suitable support. The other end of the rope carries a D-shaped ring D to which is secured a double strap E forming a body loop adjusted in size by a slide H. Integral with the latter is a buckle to engage the free end of an eyeletted strap F, which is secured to the body loop and is adapted to pass between the legs.
Patent GB-318618-A (GB)
IPC: C07C51/31
Filed: 1929-08-16
Abstract: 318,618. Selden Co., (Assignees of Jaeger, A. O.). Sept. 7, 1928, [Convention date]. Acenaphthylene, acenaphthaquinone, bisacenaphthylidenedione, naphthaldehydic acid, naphthalic anhydride and their halogen substitution products; hemimellitic and maleic acids.-Acenaphthene, acenaphthylene and their substitution products are oxidized to acenaphthylene, acenaphthaquinone, bisacenaphthylidenedione, naphthaldehydic acid, naphthalic anhydride, hemimellitic acid and maleic acid, or to the correspondingly substituted compounds, by vaporizing the acenaphthene substances and passing the vapour mixed with an oxidizing gas at an elevated temperature in the presence of steam, over a contact mass of a kind known to favour the oxidation of acenaphthene. The steam may be introduced as such, or it may be obtained bv vaporizing the acenaphthene substance into moist air. The contact mass and the reaction temperature may be chosen so as to favour the formation of naphthalic anhydride, and the exhaust vapours from the catalysis brought to a temperature somewhat below 140‹ C. whereby naphthalic acid separates out, most of the impurities being volatile in steam at that temperature. The catalysts may be metal oxide catalysts or catalysts of the kinds described in Specifications 281,307, 291,419, 295,270, 296;071, and 318,617. In the first example, 80-90 per cent acenaphthene is vaporized into an air stream containing steam and the vapours are passed at 380- 410' C. over a catalyst comprising etched quartz uniformly coated with vanadium pentoxide. Naphthalic acid is precipitated by cooling the exhaust gases to about 140-150‹ C. Another example is given in which a solution containing silver vanadate, ammonia, and potassium sulphate or bisulphate is sprayed on to pumice or quartz fragments which are then calcined with air at about 400‹ C. Acenaphthene is vaporized in a stream of moist air and passed over the catalyst at 330-380‹ C. Further examples are given in which the following contact masses are used :- A zeolite substance containing tetravalent vanadium diluted with impregnated pumice meal or asbestos fibre and iron vanadate, an aluminiumiron base-exchange substance mixed with a catalytically active vanadyl base-exchange sub. stance, a three-component base-exchange substance containing tetra- and penta-valent vanadium in non-exchangeable form and into which iron or manganese salts are introduced by base-exchange. Another suitable catalyst described in an example is a zeolite, containing tetra-valent vanadium diluted with impregnated pumice meal or asbestos fibres and iron vanadate, which has been suspended in a solution of a cementing agent such as potassium sulphate, bisulphate, or acid phosphate, the suspension being then sprayed on to fragments of pumice or roughened quartz, and calcined in air at 450‹ C. A further example is given using as catalyst the nitrate of a cuprammonium zeolite which has been calcined at 400‹ C. The oxidation of halogen-substituted acenaphthene or acenaphthylene is referred to.
Patent GB-1485209-A (GB)
Title: Child's rattle
IPC: A63H5/00
Filed: 1975-06-11
Abstract: 1485209 Toy rattles HILARY PAGE SENSIBLE TOYS Ltd 18 March 1976 [11 June 1975] 25088/75 Heading A6S A toy rattle comprises a plastics bell 10 having two aligned holes-13, 13a which receive a plastics tubular shaft 11 passed through a hole 12a in a plastics clapper 12 and having spaced ribs, &c 14, 14a which lock it in the bell. The non-ribbed end of the shaft 11 is initially introduced into the hole 13a, an axial slot 15 and the resilience of the plastics allowing the shaft to be forced home to the position shown. A D-shaped handle 16 lodges in the ends of the tubular shaft 11. Several rattles can be strung on a cord for suspension across a pram, &c.
Patent GB-448849-A (GB)
Title: A method of treating seeds, bulbs and tubers
Filed: 1934-08-31
Abstract: Seeds, bulbs, and tubers have applied thereto a coating consisting of a preserved latex containing one or more than one fertilizer, one or more than one fungicide with nitrogen-fixing bacteria being added if desired: preferably the coating consists of preserved latex containing a phosphate and a nitrate.  The latex may be rubber, or guttapercha or guayule or other latex which forms an elastic water-permeable membrane when dry.  As examples of fertilizers potassium phosphate with ammonium nitrate, ammonia with or without coconut oil or potassium hydroxide or other alkali and coconut oil or a soap-forming oil with or without the addition of ammonia are mentioned; thus, 1-10 per cent of ammonia in solution may be employed.  The latex may be diluted with water.  The seeds, bulbs and tubers when treated as above described may have fertilizers applied thereto by dusting.  The fungicides with or without nitrogen-fixing bacteria such as clostridium pastorianum may be mixed into the latex. The Provisional Specification states that roots may be similarly treated.ALSO:Seeds, bulbs and tubers have applied thereto a coating consisting of a preserved latex containing one or more than one fertilizer, one or more than one fungicide with nitrogen-fixing bacteria being added if desired; preferably the coating consists of preserved latex containing a phosphate and a nitrate.  The latex may be rubber, or guttapercha or guayule or other latex which forms an elastic water-permeable membrane when dry.  As examples of fertilizers potassium phosphate with ammonium nitrate, ammonia with or without coconut oil or potassium hydroxide or other alkali and coconut oil or a soap-forming oil with or without the addition of ammonia are mentioned; thus 1-10 per cent of ammonia in solution may be employed.  The latex may be diluted with water.  The fungicides with or without nitrogen-fixing bacteria such as clostridium pastoriannum may be mixed into the latex.ALSO:Seeds, bulbs, and tubers have applied thereto a coating consisting of a preserved latex containing one or more than one fertilizer, one or more than one fungicide with nitrogen-fixing bacteria being added if desired: preferaby the coating consists of preserved latex containing a phosphate and a nitrate.  The latex may be rubber, or guttapercha or guayule or other latex which forms an elastic water-permeable membrane when dry.  As examples of fertilizers potassium phosphate with ammonium nitrate, ammonia with or without coconut oil or potassium hydroxide or other alkali and coconut oil or a soap-forming oil with or without the addition of ammonia are mentioned; thus, 1-10 per cent of ammonia in solution may be employed.  The latex may be diluted with water. The seeds, bulbs and tubers when treated as above described may have fertilizers applied thereto by dusting.  The fungicides with or without nitrogen-fixing bacteria such as clostridium pastorianum may be mixed into the latex.  The Provisional Specification states that roots may be similarly treated.
Patent GB-380927-A (GB)
Title: Improvements in baking ovens, proving chambers, cooling devices and the like
IPC: A21B1/48
Filed: 1931-09-08
Abstract: 380,927. Conveyers for bakers' ovens, provers, &c. VICARS, Ltd:, T. & T. and APPLETON, A., Earlestown, Newton-le- Willows, Lancashire. Sept. 8, 1931, No. 25168. [Class 51 (ii).] The goods supporting frames of the conveyer for a baker's oven, prover, cooler, &c. are made reversible, so that alternative baking .surfaces, e.g. pans and reticulate trays, can be provided. As shown, a pan support 6 and a wire tray 7 are detachably carried by the channel section side members 1, 2 of the frame. The wire tray may be clipped to cross stiffening members of the frame. When the conveyer is of the type in which the trays are maintained in an horizontal position by pins at diagonally opposite corners, these pins are removed when the tray is reversed, and replaced in sockets on the other diagonal.