baber/WOPTO huggingface dataset:
Patent GB-1259409-A (GB)
IPC: F16B19/10
Filed: 1970-07-13
Abstract: 1,259,409. Stud and socket fastenings. J. A. MACKENZIE. 13 July, 1970, No. 33938/ 70. Heading E2B. A releasable reusable, expandible fastener for detachably securing together superposed members A, B having aligned holes a, b is formed of resilient material such as nylon or a hard, resilient synthetic plastics or steel, and comprises a sleeve 10 and a sleeve-expanding member 11 permanently slidably mounted within the sleeve, the sleeve including a flange 13 having a shoulder at right angles to the axis of the sleeve and a plurality of axially extending spring fingers which, when in a relaxed condition, have a collective outside diameter which is less toward each end of the sleeve than the collective outside diameter of the central portion thereof, the fingers being flexible inwardly to permit their insertion through the apertures a, b. The expanding member comprises a cylindrical shaft 18 provided with a flange 19 at one end having a shoulder at right angles to the axis of the shaft, a tapered head 20 at the opposite end, and a locking recess 21 inwardly of the head and a gradually tapering camming surface extending inwardly of the recess; the fingers have locking shoulders 23 on the inner surfaces thereof and which are generally complementary in shape to the recess and the head on the shaft and the shoulders cooperate with one another to retain the expanding member within the sleeve when the latter is in an unexpanded condition. The locking shoulders 23 co-operate with the camming surface 22 to expand the fingers to fasten the sleeve and member 11 within the holes a, b and to lock the superposed members A, B to one another when the member 11 is driven inwardly to a position in which the flange 19 contacts the flange 13. The shaft is of no greater length than the fingers 12 so that the head 20 is protected by the fingers when member 11 is driven home. The shaft may have a larger diameter part 18a which is a press fit in the bore of the flange 13. A lever having partcircular cut-outs to embrace the flanges 13, 19 at the shoulders 25, 24 is used to pry the member 11 from the fastened position and the sleeve from the holes a, b.
Patent GB-979475-A (GB)
Title: Limit control for electric motors
IPC: B66C13/26
Filed: 1962-09-05
Abstract: 979,475. Control of A.C. motors. SQUARE D CO. Sept. 5, 1962 [Sept. 22, 1961], No. 33974/62. Heading H2J. [Also in Division G3] Movement of slider 48 of potentiometer 46 in the clockwise direction from its central position provides a reference voltage to turn on lowering control unit 41 for induction motor 10. Contact 51a is closed to energize relay 26 in circuit with brake release winding 25w. Limit switch contacts 18d short-circuit primary winding 21p so that secondary winding 21s has low impedance and winding 25w is fully energized to release the brake 25. Rectifier 29 responds to energize reactor winding LX, thereby decreasing the impedance of windings 1L, 2L. A winding CX is also energized to decrease the impedance of winding C, so that a balanced polyphase voltage is impressed on stator terminals T1, T2, T3, and the motor exerts a torque for lowering. A feed-back voltage from tachometer generator 45 opposes the reference voltage and tends to increase the impedance of windings 1L, 2L, and C. If the feed-back voltage exceeds the reference voltage, unit 41 is turned off and hoist control unit 38 is turned on to provide a counter-torque. When the slider 48 is moved counter-clockwise, the brake is released as before, and the reference voltage is of such polarity that the hoist control unit 38 is turned on whereby controlled rectifier 28 energizes windings HX, CX, to saturate windings 1H, 2H, and C. Upon tripping of the limit switch 18, contact 18d opens to remove the short-circuit from winding 21p, and contact 18b connects the winding to line L3. Since winding 2H has low impedance, winding 21p is also connected to line L1, so that the voltage induced in winding 21s opposes the voltage from lines L1, L3 impressed on rectifier 24 and winding 21s. The winding 25w is deenergized and the brake is applied. At the same time, the voltage applied to the motor is reduced to a negligible value. When slider 48 is adjusted to lower the motor from the limit position, single phase power is applied to terminals T1, T3, with resistor 20 between terminals T1, T2, producing unbalanced threephase voltage to develop adequate downward torque. Winding 21p is connected across winding 2L which has low impedance, so that winding 21s has low impedance and the brake is released. When the limit switch resets, the motor is connected for normal lowering operation. If the limit switch should fail to reset and the motor is overhauled by the load, the feedback voltage from generator 45 causes the impedance of winding 2L to increase, thereby applying the brake. The motor is alternately accelerated and stopped for safe lowering of the load.
Patent GB-336466-A (GB)
Title: Method and tool for cutting screw threads particularly coarse threads
IPC: B23G5/06
Filed: 1929-11-08
Abstract: 336,466. Stock & Co., Spiralbohrer-, Werkzeug - und Maschinenfabrik Akt.-Ges., R. Nov. 10, 1928, [Convention date]. Taps.-In a method of cutting screw-threads, particularly coarse threads, the cutting operation is divided into at least two, but preferably more, stages, the first teeth in each stage increasing the depth of the thread groove whilst the rear teeth increase the width only of the groove and are arranged symmetically with respect to the tooth centres. When all the stages are combined in a single tap the teeth in the stage I, Fig. 2, cut the thread to the depth of the line A - - B, Fig. 1, the preliminary teeth e cutting V-shaped chips g of increasing depth and the truncated rear teeth f removing strips h of the same depth. The succeeding stages II, III, increase the depth of the thread to the lines C - - D, E - - F respectively, each stage commencing with pointed teeth e of gradually increasing depth and finishing with truncated teeth f of the same depth. Finishing teeth k of the correct thread profile reduce the thread to its final form by a light cut. The core ot each stage may be conical as shown by the lines d<1> - - d<3>, Fig. 2, or may be cylindrical while the external form of the tap is conical over the teeth e and cylindrical over the teeth f. When several taps are used in succession, each carrying one stage of teeth, the second and subsequent taps each have a number of truncated teeth m, Fig. 5, of the same shape as the last teeth of the preceding tap, the teeth m serving as a guide and not as cutting teeth. The taps may be produced by first forming threads thereon of the correct pitch and subsequently cutting each stage with first a smaller pitch and next a larger pitch so as to reduce the width of the preliminary teeth in each stage.
Patent GB-341174-A (GB)
Title: Improvements relating to bearings and lubricating means therefor
IPC: F16C33/66
Filed: 1929-11-09
Abstract: 341,174. Lubricating. STEINMETZ, A., 37, Ashwood Avenue, West Didsbury, near Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London. Nov. 9, 1929, No. 34261. [Class 12 (iii).] By semi-solid lubricants ; preventing congelation.-In a ball or roller bearing having a housing 5, Fig. 1, containing grease, one or each end wall of the housing is provided internally with one or more inclined surfaces 9 which extend into close proximity to the gap between the races, whereby the grease is maintained in movement during the rotation of the shaft and is thus kept in a condition of greater fluidity. Alternatively, the surfaces 9 may be formed on a member 8, Fig. 6, secured in the housing by studs 14 so as to be adjustable axially. Pairs of oppositely-inclined surfaces may be provided so as to function in either direction of rotation.
Patent GB-387081-A (GB)
Title: Improved potato peeling machine
IPC: A47J17/18
Filed: 1931-12-10
Abstract: 387,081. Peeling potatoes. ASSERSOHN, D., 31, St. Bride Street, London. Dec. 10, 1931, No. 34285. [Class 28 (ii).] A potato peeler of the type comprising a container 1 with an abrasive inner surface and a rotary abrading bottom disc, has an upstanding pin 22 secured in a recess in the bottom of the container to engage in a recess in the end of the shaft 19. The cover 4 carries a frame 10 on which the driving-gear 12 .. 16 is supported, the shaft 16 being releasably engaged with the disc-carrying shaft 19. A hand-knob 21 may be grasped by the operator whilst turning the handle 11. The cover is held down by two catches 6, one of which is held against accidental displacement by a stop 8, and is provided with an inside rib 5 to prevent water from splashing out of the container. The container is roughened by attaching small pieces of stone or very rough sand, and the disc may be ribbed to strengthen it.
Patent GB-888833-A (GB)
Title: Improvements in or relating to textile mixing devices
Inventor: FRANKE OSKAR
IPC: D01G13/00
Filed: 1960-10-06
Abstract: 888,833. Mixing fibres. ROHRLEITUNGSBAU VEB (K). Oct. 6, 1960, No. 34346/60. Class 120(3) A device for mixing spinning material comprises a stationary container 1 and a feed pipe discharge outlet 8 which performs a circular movement and is disposed eccentrically relative to the vertical axis of the container for helical deposition of the material therein, the outlet 8 being mounted on a snout 7 connected through a swivel joint 6 with the mouth of the feed pipe 4, said mouth being coaxial with the vertical axis of container 1. The discharge outlet is constituted by a blower 8 which is counter-balanced by a weight 10. The snout 7 is rotated by a motor 9. Lubricant from a channel 14 is supplied through a pipe 15 disposed in a tube 11 and a pipe 17 having a resilient part 18 to an outlet 13 in the blower 8. A ventilation opening 3 closed by a perforated screen and an opening 2 for the withdrawal of material are provided.
Patent GB-1041530-A (GB)
Title: Bis-triazinyl-aminostilbene-disulphonic acids
IPC: D06L4/621
Filed: 1965-08-11
Abstract: Brightening agents contain compounds of the formula <FORM:1041530/C2/1> wherein X represents a hydrogen atom or a cation. These compounds are prepared by condensing 2 mol cyanuric chloride, 1 mol 4,41- diaminostilbene-2,21-disulphonic acid, 2 mol iso-propyl alcohol and 2 mol N-methyl-ethanolamine together and, i desired, converting the product into a salt, e.g. an alkali metal or ammonium salt.ALSO:Textiles, especially those of synthetic polyamides, are brightened by applying a compound of formula <FORM:1041530/D1-D2/1> where X is H or a cation.  In an Example, a fabric made from the polycondensate of e -caprolactam is treated at 80-90 DEG C. with an aqueous liquor containing the compound in the form of the sodium salt, and formic acid.
Patent GB-729419-A (GB)
Title: Centralising and traversing device for rocker shovels
IPC: E02F9/12
Filed: 1953-12-10
Abstract: 729,419. Rocker shovels. TAYLOR & CO. (PROPRIETARY), Ltd., C. C. Dec. 10, 1953 [Jan. 20, 1953], No. 34433/53. Class 78 (3). A slewing and centralising mechanism for a rocker shovel comprises a turntable 2 on which the rocking structure (not shown) is mounted ; a shaft 3 which is journalled in the turntable and which has secured thereto a drum 1, a chain wheel 4 and a crank 5.; a chain 8 engaging the chain wheel 4 and a driven sprocket 6 rotatably mounted on the turntable ; a cable 9 which is anchored at its ends to fixed portions 7 of.the shovel and which is wound on drum 1 ; a roller 12 mounted on the free end of crank 5 ; and a cam 14 which is moved away from the roller 12 to permit the shaft 3 to be rotated to effect slewing of the turntable, and which is automatically forced against the roller during upward movement of the rocker to centralize the crank and therefore the drum and turntable. The cam 14 is mounted at the ends of a pair of rods 17, 18 which slide in guides 28, 29 and have a pin-and-slot connection with cranks 25, 26 secured to a shaft 27. A lever 31 is also secured to this shaft and is arranged so that when raised manually it frees the turntable for slewing and when moved downwardly by the rocker structure it re-centres the shovel.
Patent GB-761426-A (GB)
Title: Improvements in process of making films of polyurethane elastomer
IPC: C08L75/04
Filed: 1954-11-29
Abstract: Non-thermoplastic elastomeric films of polyisocyanate modified polyesters are obtained by depositing an intermediate reaction product containing free isocyanate groups as a film, and exposing the film to water vapour at a temperature of 65-200 DEG  C.  The curing may be completed by this treatment or may be initiated only, curing being completed by exposure to water vapour at a lower, e.g. room, temperature.  The films may be deposited from solution in ketones or methylene chloride and may be later stripped from the support.  In an example a polyester from adipic acid, propylene glycol and ethylene glycol of hydroxyl number 50-60 was modified with 4.41-diphenylmethane di-isocyanate and spread into thin films which were exposed to moist air at various temperatures.  The swelling and solvency of the various products in dimethyl formamide are compared.
Patent GB-1041170-A (GB)
Title: Jointing arrangement for sheet-metal drums
IPC: F16L9/17
Filed: 1965-08-12
Abstract: 1,041,170. Pipe joints. LUFTKONDITIONERING A.B. Aug. 12, 1965 [Aug. 14, 1964], No. 34522/65. Heading F2G. The adjacent ends of pipes 1, 5 are bent to form U-shaped flanges 2, 6 and the pipe 1 includes a support member 3 secured to which is an elastic sealing strip 4 clamped between the flanges when the pipes are connected in known manner, i.e. by threading a guide 7 over the flanges. The strip 4 may be located in a groove in the member 3, or be of tubular form having a tangential flange enclosed between a U-shaped member 3.
Patent GB-353356-A (GB)
Title: Improvements in or relating to a wick burner
IPC: F23D3/00
Filed: 1930-11-17
Abstract: 353,356. Wick burners. LAMPENUND METALLWARENFABRIKEN R. DITMAR GEB. BRœNNER AKT.-GES., Erste Haidequerstrasse, Vienna. Nov. 17, 1930, No. 34615. Convention date, Dec. 18, 1929. [Class 75 (i).] In an annular wick burner of the kind in which the flame burns above openings 5 in a disc 3 which may serve to limit the upward movement of the wick, the flame is prevented from striking back to the uncovered part of the wick by a sleeve 4 which is welded or otherwise secured to the disc and is provided with projecting teeth 8 engaging projections 9 on the outer wick tube 2. The construction permits relatively large perforations 7 to be provided in the outer portion of the disc for supplying air to the flame. The lower part of the sleeve 4 is provided with perforations 10 to admit air to the space between the sleeve and wick tube.
Patent GB-1127006-A (GB)
Title: Hardenable polymer-cement compositions
Inventor: WARSON HENRY
IPC: C04B24/26
Filed: 1965-08-13
Abstract: 1,127,006. Cement compositions. DUNLOP CO. Ltd. 5 Aug., 1966 [13 Aug., 1965], No. 34676/65. Heading C1H. [Also in Division C3] A self-hardenable composition comprises an hydraulic cement and an aqueous emulsion of a polymer or copolymer of a vinyl ester of a carboxylic acid, said ester having a quaternary carbon atom in the alpha position relative to the carboxyl group. The ester may be polymerized with other vinyl esters not having a quaternary carbon atom, e.g. vinyl acetate. The composition may optionally contain sand, aggregate and water in amount sufficient to effect setting of the composition together with that of the aqueous emulsion. In the examples a copolymer of vinyl acetate and a mixture of vinyl esters of empirical formula C 9-11 H 18-22 O 2  is used with Portland cement.
Patent GB-307993-A (GB)
Title: Improvements in or relating to cigarette making machinery
IPC: A24C5/18
Filed: 1927-12-22
Abstract: 307,993. Thrissell Engineering Co., Ltd., (formerly Brecknell, Munro, & Rogers, Ltd.), and Howe, A. Dec. 22, 1927. Cigarette-making machines.- In a continuous-rod machine, the lower half of the forming channel comprises a long block 1 with a tapering groove 2 of rectangular cross-section, and a piece 3 of sheet steel in the form of a tapering open channel of semi-circular section fitted into the groove 2. As shown, the member 3 is in contact with the bottom of the groove and is held in place by plates 4 secured to the block. The member 3 may be pressed into shape between dies and afterwards hardened.
Patent GB-471964-A (GB)
Title: Improved device for delivering measured quantities of liquids
IPC: G01F11/16
Filed: 1935-12-14
Abstract: 471,964. Delivering measured quantities of liquids. HOBBS, E. W., and CLARK'S OPTIMUS COFFEE EXTRACT, Ltd. Dec. 14, 1935, No. 34791. [Class 106 (v)] Apparatus for delivering measured quantities of liquid comprises a tube a open at one end to form a delivery orifice d and having at the side an inlet orifice c and a tubular member b adapted to be connected to a source of supply, the filling and discharge orifices being controlled respectively by a relatively long piston. j and a relatively short piston j, the pistons being connected together for operation by a rod f. In order to vary the quantity of liquid delivered, the distance between the pistons is adjustable by means of a screwthread connection between the rod f and the piston i.
Patent GB-644573-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B66C13/24
Filed: 1946-11-25
Abstract: 644,573. Control of A.C. and D.C. motors. I GRANIC ELECTRIC CO., Ltd. Nov. 25, 1946, No. 34893. Convention date, Dec. 1, 1945. [Class 38(iii)] A hoist motor M is supplied from a direct-current variable-voltage generator G which is driven, together with an exciter E, by an induction motor M1 which is started by closure of switch 1, a drum controller, Fig. 2, (not shown) being after wards moved to control the operation of the hoist motor. In the event of failure of the alternating-current supply the switch 1 is released to actuate an electromagnetic brake B and the motor Ml is simultaneously braked by having one phase of its stator winding connected to the generator G, the shunt field winding F2 of which is connected to the exciter through a resistor r12. A series field winding F1 of the motor M is included in circuit on all hoisting positions of the master controller, a generator series field winding F3 being included on the first hoisting position, and possibly other early hoisting positions, but is excluded on all other such positions. The field winding F3 is included in circuit on the first lowering- position of the controller and is excluded on all other lowering-positions. The field winding F1 is connected in circuit on lowering-positions when the load is overhauling but is disconnected by load relay LR under power-lowering conditions. When the control drum is moved to the first hoisting position the field winding F2 is disconnected from the generator armature and is connected to the machine E through a switch H, a motor field winding F being energized by the exciter. On the second hoisting-position, a resistor r3 is inserted in series with the field winding F, a resistor r6 being removed from the circuit of the winding F2. Thereafter, resistors r7, r8, r9, which are shunted by resistor r14, are sequentially removed from the generator field winding circuit. During lowering the field winding F2 is reversely connected to the exciter through switch L, a resistor r11 being substituted for resistor r10 in the circuit of the field winding. A time delay relay prevents removal of the resistors r8, r9, pending lapse of a given period which is initiated by movement of the control drum from the " off " position to the first positions for hoisting or lowering. A voltage relay VR prevents reverse current braking of the hoist motor until the motor voltage is reduced to a safe value.
Patent GB-1327454-A (GB)
Title: Halogen substituted polyvinyl carbazoles
IPC: C08F8/20
Filed: 1970-07-20
Abstract: 1327454 Carbazole derivatives CANON KK 20 July 1970 [18 July 1969 20 June 1970] 34991/70 Heading C2C [Also in Divisions C3 and H1] 3-Chlorocarbazole is brominated with bromine or N-bromosuccinimide and then vinylated with acetylene to yield 3-chloro-6-bromo-9-vinylcarbazole. The latter compound may also be obtained by dehydrating or dehydrochlorinating the product of successively brominating and chlorinating 9-#-chloroethyl- or 9-ethylol carbazoles. 3-Bromocarbazole is reacted with sulphuryl chloride and then acetylene to yield a mixture of 3,8- and 1,3-dichloro-6-bromo-9- vinyl-carbazoles. 3-Chloro- and 3-bromo-9-vinyl-carbazoles are obtained by reacting the corresponding 3- chloro- and 3-bromo-carbazoles with acetylene.
Patent GB-356574-A (GB)
Title: Improvements in and relating to the construction of windows
IPC: E06B3/44
Filed: 1930-11-21
Abstract: 356,574. Windows. LUNKEN, E. H., 11, Clubway, Hartsdale, New York, U.S.A. Nov. 21, 1930, No. 35112. [Class 20 (iii).] Window frames for buildings, such as offices, extend approximately from one floor to the next and are secured directly to the building framework in a continuous vertical line. The window may comprise a lower fixed decorative panel 37, an outer sliding panel 25 and a fixed upper window. An inside sill 46 may be bolted to an inverted channel 45. The glass is secured by strips 27. The meeting edges of the fixed and sliding sashes are weatherproofed by engaging strips 29, 30. The corner joints of the sashes may be braced by inset angles 28, Fig. 7, and a stiffening strip 31 may be applied to the lower member of the fixed or other sashes. Pocket pieces 10 are screwed to channel brackets 4a on the frame. The fixed glass panel may be wired glass and may be suitably decorated.
Patent GB-282801-A (GB)
Title: Improvements in or relating to electric soldering irons
IPC: B23K3/03
Filed: 1927-12-28
Abstract: 282,801. Nauman, P., and Weber, K. Dec. 29, 1926, [Convention date]. Electric stoves.-Part of the heating resistance of a soldering iron is cut out by a switch t when the handle is grasped, the switch opening automatically when the handle is released.
Patent GB-319541-A (GB)
Title: Improvements in or relating to paper bags and the like containers
IPC: B65D30/24
Filed: 1928-11-29
Abstract: 319,541. Becker, F. Nov. 29, 1928. Drawings to Specification. Paper bags; securing bags, special means for.- In making a paper bag, the ends of a multi-ply paper tube are pasted, glued or otherwise cemented between the layers and between the walls of the tube for a short distance from the ends of the tube; the pasted portions are then pressed together before being finally sewn, wire-stitched or stapled.
Patent GB-1058976-A (GB)
Title: Water soluble salts of hop acids
IPC: C12C3/04
Filed: 1963-08-06
Abstract: The subject-matter of this Specification is identical with part of that described in Specification 1,058,975, but the claims are directed to a dry powdered mixture of water-soluble salts of a -acids and isohumulone.ALSO:The subject-matter of this Specification is identical with part of that described in Specification No. 1,058,975, but the claims are directed to a dry powdered mixture of water-soluble salts of a -acids and isohumulone.