baber/WOPTO huggingface dataset:
Patent GB-913299-A (GB)
Title: Instrument for the determination of the diameter of work pieces or the like
IPC: G01B11/08
Filed: 1960-09-26
Abstract: 913,299. Optical gauges. HENSOLDT & SOHNE, OPTISCHE WERK A.G., M. Sept. 26, 1960 [Oct. 7, 1959], No. 32934/60. Class 106 (2).  An instrument for determining the diameter of workpieces comprises a light source 3 directed on to diameter end points A, B and two two-compartment objectives 13, 14 and 19, 20 for imaging the points A, B on to a common plane viewed through an eyepiece 17. The ray paths between objective components 13, 14 and between objective components 19, 20, are parallel and components 13, 19 are displaceable by means of a measuring-screw 22 having one right-hand and one left-hand thread, the movement being read on a scale 28. Pentag prisms 12, 18 are provided in front of objective components 13, 19 to form virtual images of the nodal points on the axis of the screw 22. In an alternative embodiment, Fig. 2, the displaceable objective components are constructed as telephoto lenses 40, 41.
Patent GB-856121-A (GB)
Title: Improvements in or relating to air extraction for toilet bowls
Inventor: BELCHER BASIL JOHN SAUNDERS
IPC: E03D9/052
Filed: 1957-10-22
Abstract: 856,121. Ventilating closets. SILAVENT Ltd. May 29, 1958 [Oct. 22, 1957], No. 32962/57. Class 26. A ventilated toilet comprises a bowl, a seat 2, and means for withdrawing air through an intake opening 7 situated above, facing downwards substantially wholly towards and spaced apart from the rear top ledge 6 of the bowl. Said means may comprise a hollow collector 1 having an air intake opening 7, an outlet opening 10 for connection to a source of suction, and a passage 8 connecting the openings 7 and 10. The collector and seat 2 may be mounted on the same axis, the seat 2 thus pivoting relatively to the collector 1, at least the front part of which lies between two seat lugs 3. The intake opening may be a slot transverse to the bowl in the front part of the collector 1, which may have side recesses to take pivot means so that the collector and seat pivot on the same axis, and which may extend therethrough so that the collector and seat may be mounted on a common pivot pin 4, Fig. 3. The opening 10 is at the end of an extension 9 cranked so that the opening 10 is to one side of the centre line of the front part. Fig. 5 shows an alternative form of mounting to Fig. 3. By having shoulders 12 on the bolt heads 5 the collector 1 is raised clear of the ledge 6, whereas buffers 13 on the seat 2 support it clear of the bowl, ribs 14 thereon reducing the amount of air drawn under the seat from the sides. In a modification the rear part of the collector is bent downwards to fit into a hole in the ledge of the close-coupled type, into the bottom of which fits a connector for the exhaust pipe, held in position by a screw attached also to the rear part. In another modification the collector may consist of separable upper and lower parts held together by a screw. The joint between the collector and the exhaust pipe may be of the push-on or screwed type.
Patent GB-904049-A (GB)
Title: Improvements relating to rocket-powered mine-clearing snakes
IPC: B64D17/00
Filed: 1960-09-26
Abstract: 904,049. Mine-clearing. BOFORS A.B. Sept. 26, 1960 [Oct. 30, 1959], No. 32981/60. Class 9 (2). [Also in Group XXXIII] A mine-clearing device comprising a hose 1 filled with explosive, e.g. T.N.T., and attached to a rocket 3 is provided with braking means in the form of a parachute 4 having spring means 7, Fig. 3, to control its opening. The rocket when discharged from a launcher 2 pulls the hose 1 behind it and when the rear end of the hose reaches a certain speed the parachute opens. The parachute is designed for the braking force, F B , to cease suddenly when it has dropped to a certain value. In Fig. 3, the parachute cords 6 are connected to the hose 1 by means 5 which allows the parachute to rotate independently of the hose 1. The spring 7, which may be a helical spring or twisted rubber strands in a stretchable textile sheath, connects the centre of the parachute to the means 5, so that when F B  falls sufficiently, the pull of the cords 6 is less than the pull of the spring 7 and the spring shortens. F B  then falls more rapidly and produces further shortening of the spring. Instead of the arrangement of Fig. 3, the spring may be an elastic cord placed around the circumference of the parachute or replacing one of the cords 6. Two elastic cords may be used connecting diametrically-opposed points on the circumference of the parachute.
Patent GB-618642-A (GB)
Title: Improvements connected with tubular members for structural purposes
IPC: F16B12/28
Filed: 1946-11-07
Abstract: 618,642. Metallic tubes. CHARLESWORTH, F. J. Nov. 7, 1946, No. 33066. [Class 99 (ii)] [Also in Group X] Tubular structural members, for use in tables, chairs, step ladders and like articles, are made from sheet metal channelsection strips 1, 2, which are telescoped together and secured by rivets 3 or like securing means passing transversely through the tubes. A reinforcing piece may be provided in the end of the tube and formed with a transverse hole to receive a bolt or other attachment means. According to the Provisional Specification the strips 1, 2 may be secured together by spot welding.
Patent GB-1355061-A (GB)
Title: Electric timepieces
IPC: G04C3/10
Filed: 1971-07-14
Abstract: 1355061 Electronic timepieces SUWA SEIKOSHA K K 14 July 1971 [31 July 1970 30 Sept 1970] 33069/71 Heading G3T An electronic timepiece comprising an electromechanical oscillator, e.g. a balance wheel or tuning fork, has a drive circuit as shown Fig.4a or Figs.4b and 4c (not shown) wherein a single coil 5 serves both as a pick-up and as a drive coil, and is connected between the collectors of a complementary pair of drive transistors 10, 11. The drive circuit is self-starting and the transistors are operated in the linear portions of their characteristics so that very small voltages induced in the coil by magnets on the mechanical oscillator, will be amplified. In addition the drive pulse widths are not determined solely by the time constants of the circuit. Thus in Fig. 5b which illustrates the voltage waveform at the collector of Tr 11 a wide effective current pulse 24 occurs when the induced voltage is large and a narrow effective current pulse 25 occurs when the induced voltage is small. Fig. 5c illustrates the voltage waveform at the collector of Tr 10. A timepiece having a tuning fork oscillator, as illustrated in Figs. 6-11 (not shown), is the subject of divisional Specification 1355063.
Patent GB-661559-A (GB)
Title: Improvements in devices for measuring the thickness of band material
IPC: G01B5/06
Filed: 1949-12-28
Abstract: 661,559. Linear-dimension gauges. FAIRWEATHER, H. G. C. (Sandvikens Jernverks Aktiebolag.). Dec. 28, 1949, No. 33130/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 8, 1950.] Class 106 (ii). A gauge for measuring the thickness of band material is in the form of a carriage adapted to be carried by the band while rolling thereon and provided with a band-gripping measuring device. A frame 1 has bolted thereto a yoke 12 rotatably supporting a roller 13 which engages the under-side of the band 2 and forms bearings for axles 6 to which are fixed handles 10 and brackets 5 rotatably supporting the axles of wheels 3 which engage the upper side of the band 2. Springs 8 interconnecting lugs 7, 9 on brackets 5 and frame 1 urge the wheels 3 and roller 13 so as to hold the band 2 resiliently therebetween, while pressing the handles 10 toward each other releases the pressure to facilitate engaging or disengaging the band from the gauge. A feeler 14 is slidably mounted in a bore opposite the roller 13 and is resiliently urged into contact with the upper surface of the band by a spring 23 pulling upwardly on the end of a pointer 19 bent at right-angles and supported by a knife edge 20 on the feeler while pivoting about a fixed knife edge 22 so that the pointer moves against a scale 24 to indicate the thickness of the band 2. A handle 17 with ball-and-socket mounting facilitates relative movement between gauge and band. Any known indicating device may replace that shown. The number of wheels may be reduced to two or three.
Patent GB-1432405-A (GB)
Title: Humidity control apparatus
IPC: G05D22/02
Filed: 1973-07-12
Abstract: 1432405 Automatic control of humidity DROOGTECHNIEK & LUCHTBEHANDELING BV 12 July 1973 [17 July 1972] 33201/73 Heading G3R To control the humidity of a space 1, gas from the space is pumped through an auxiliary gas path 5, 7, 9, 14 and including a moisture detector 6, which opens a valve 10 between the space and the surrounding atmosphere to allow flushing of the gas within the space by pressurized dry gas from a source 3, if the measured gas humidity exceeds a pre-set value. As shown, the space 1, which is at a pressure greater than the ambient atmosphere, includes a water permeable wall 4, and moisture detector 6 controls, using relay switching Fig. 2 (not shown), a motor 13 driving pump 12 in the auxiliary gas path, and controls electromagnetic valve 10, which may be in the auxiliary path as shown, or connected directly to the space 1. The flushing of the space by the dry gas e.g. air may be continued until the humidity falls below the pre-set value, or for a predetermined time. The space may be a parabolic radio communications aerial enclosed by a plastics foil, with the conduit 2, between the space 1 and the dry gas source 3, forming the waveguide feeding the aerial.
Patent GB-1399136-A (GB)
Title: Method of making a master die for use in an abrasion process
IPC: B23P15/24
Filed: 1972-07-17
Abstract: 1399136 Making spark erosion electrodes E P HAUSERMANN and M C HAUSERMANN 17 July 1972 [19 July 1971] 33264/72 Heading B3A In a method of making an oversize negative master die 22 from a positive model 14, of an electrode to be formed using the die, a stylus tracing the positive model 14 is oversize in diameter by an amount X relative to a machining tool 12 rigidly linked thereto which machines a workpiece 16 to form a machined member oversize in transverse directions only. If the machined member is electrically conductive, e.g. silver, copper, carbon, graphite it is used as an electrode in an electrical discharge machine to form a negative oversize metal master die. A wood or plastics machined member is used to mould a negative oversize master die in a plastic-abrasive composition. The negative oversize master die 22 is then mounted opposite an electrode workpiece 24. The die and workpiece are brought into engagement and either or both of them is moved in a circular path to abrade the oversize X to form an electrode identical with the positive model 14. The electrode thus formed can be used to sink die cavities in metal, e.g. for forging.
Patent GB-435897-A (GB)
Title: Improvements in or relating to lapping or grinding devices for crank pins
IPC: B24B21/02
Filed: 1934-11-19
Abstract: 435,897. Grinding crank-pins &c. GOTTI, E., 106A, Burgstrasse, St. Gall, Switzerland. Nov. 19, 1934, No. 33277. Convention date, Nov. 21, 1933. [Class 60] Apparatus for grinding crank - pins by means of an endless abrasive belt comprises two arms 1, 2 pivotally connected by a pin 3 on which the arm 2 is pivoted, and which is adjustably secured by a slot 6 and nut 5 to the arm 1. The arm 1 carries a steel &c. abutment member 12 and guide blocks 13 adjustably secured by bolts 11 and a slot 10 in the arm, the crank-pin 14 being engaged by the parts 12, 13 during grinding. The arm 1 also carries an adjustable bracket 15 formed with a handle 17 and carrying a screw 18 which contacts with the arm 2 to limit the approach of the arms ; the arm 2 also carries a handle 19. On the arm 2 is the abrasive belt 20 running over pulleys 21, 22, the pulley 21 being adjustable by a screw 25 to tension the belt, and the pulley 22 being driven by an electric motor 27, mounted on the arm 2. The belt passes over a table 30 on the arm 2 and is pressed thereby against the work, the device being held by the handles 17, 19 and a slot 32, which forms a hand grip ; an adjustable weight 28 on an arm 28 balances the device and a stop 39, or a stop 40 is provided to prevent tipping of the device sideways. In a modification, the arm 1 has formed thereon, or secured thereto, a broad flat guide-plate extending rearwardly and adapted to rest on a guide rod arranged parallel to the crank-pin on supports clamped to the bed of the machine in which the crankshaft is supported and rotated. The Specification as open to inspection under Sect. 91 comprises also the application to grinding cams or the like, and further an arrangement wherein the pulley 22 is driven by a belt from the motor 27, or wherein the pulley is driven through a flexible shaft from a motor remote from the apparatus. This subject-matter does not appear in the Specification as accepted.
Patent GB-884071-A (GB)
Title: Process for the polymerisation of butadiene
IPC: C08F136/06
Filed: 1960-09-28
Abstract: Polybutadiene of cis-1,4 content of at least 95% is made by polymerizing butadiene in a substantially non-aqueous solution with the aid of a catalyst comprising a compound of cobalt and/or nickel, and in the presence of a predetermined total amount of water in the reaction mixture which is between 1 to 50 parts per million by weight of the mixture.  The catalyst is preferably formed by mixing a compound of cobalt and/or nickel with an organo-aluminium compound. The catalyst may also contain an acidic metal halide.  The solvent for the butadiene may be benzene, toluene, decahydronaphthalene, ethyl benzene, hexane, cyclohexane, octane, iso-octane, butene-1, butene-2, pentenes, hexenes, and mixtures thereof.  The preferred solvent is a mixture of butene-1 and benzene.  The cobalt or nickel compound may be selected from the halides, nitrates, naphthenates, octanoates, sulphates, phosphates, carbonates, sulphides, cyanides, sulphocyanides, acetates, propionates, butyrates, oxalates, or benzoates, of these elements.  The organo-aluminium compound may be selected from aluminium triethyl, tri-isopropyl, tri-n-butyl, tri-isobutyl, isobutyl sesquihalide, diethyl hydride, n-butyl dichloride, ethyl dichloride, diethyl chloride, or aluminium ethyl sesquichloride.  The acidic metal halide may be aluminium chloride, or bromide, or chlorides of gallium, indium, or zinc. The catalyst may be used as a solution.  The polymerization may be carried out batchwise or continuously.  The reaction may be terminated and the polymer purified by treating the polymerizate with water, an alcohol, an amine, or a mineral or organic acid. The polybutadiene may be compounded with conventional tackifiers, plasticizers, stabilizing agents, vulcanizing agents, and fillers such as carbon black.  The polymers may be made into articles, or used in coating, or impregnating compositions.
Patent GB-423460-A (GB)
Title: Improvements in and relating to the introduction of materials of the character of cement slurry into rotary kilns and the like
IPC: B01D37/02
Filed: 1933-11-28
Abstract: 423,460. Feeding slurry to rotary kilns. UHDE, F., 79, Rathenauallee, Dortmund, Germany. Nov. 28, 1933, No. 33303. Addition to 410,849. [Class 51 (ii)] In the nozzle for feeding cement slurry to rotary kilns according to the parent Specification, the inner surface of the wall e adjacent the delivery orifice c is of curved form as shown, this construction promoting eddy-free flow and permitting the use, except in the region of the orifice c, of the usual soft constructional materials for the wall e. The device f for imparting a whirling motion to the slurry is positioned immediately behind the curved surface e and is so constructed that the cross-sectional area of the flow path through it is greater than that of the delivery orifice c. The latter is coated with wearresisting material d of the kind set out in the parent Specification, and the device f may be made of the same material.
Patent GB-1218428-A (GB)
Title: Improvements relating to quick release extension wheel fasteners
Inventor: DOWNARD ERIC WILLIAM
IPC: B60B15/26
Filed: 1968-07-12
Abstract: 1,218,428. Tractor wheel attachments. COLCHESTER TILLAGE Ltd. 27 June, 1969 [12 July, 1968], No. 33369/68. Heading B7C. [Also in Division E2] A cage-wheel is secured to a tractor driving wheel by a toggle fastener comprising screw 13 with hook 14 engaging an eye 10 fixed to the wheel securing bolts 12, the other end threadedly engaging a cylindrical nut 16 pivoted in lever 15, itself pivoted by nuts and bolts 19 to bracket 17 welded to hub 3 of the cage-wheel, and the  lever being slotted to allow the screw to pass therethrough as required in adjusting the length between nut 16 and eye 10 to suit a particular assembly. The lever is movable about its pivot between the clamping position shown in full lines and the release position shown in broken lines. The cage-wheel comprises rings 1, 2 spaced by tread bar 5 and supported from hub 3 by spokes 4. Members 6 protrude from one side to engage recess 7 in the tractor wheel and driving torque is transmitted by bracket 8a engaging one of the members. In a modification, the eye is on screw 13 and the hook is fixed to the wheel.
Patent GB-301081-A (GB)
Title: Improvements in spinning nozzles for use in the manufacture of artificial silk
IPC: D01D4/02
Filed: 1928-11-16
Abstract: 301,081. Colomb, H. Nov. 25, 1927, [Convention date]. Apparatus for making filaments.-A multiple spinning nozzle for the manufacture of artificial silk consists of a number of perforated studs or metal discs c, each mounted in a metal plug g by means of which they can be screwed or pressed into the base plate a of the nozzle. The spinning elements c may be formed of perforated stones of metal plugs, and they may be held in the part g either by the resiliency of the metal, or by means of a washer d, Fig. 1, the upper part of the bore of the plug g being conical in order that the spinning element or the washer may be inserted, alternatively the spinning element c may be held in position by chasing the rim of metal at the lower end of the plug as shown in Fig. 6, or the lower end of the plug may be split so as to grip the spinning element c when the plug is screwed into position, for which purpose the lower end of the plug and the lower part of the opening in the plate a are of conical form as shown in Figs. 8 and 9. The plugs may be shaped internally or externally to take a key or other appropriate tool.
Patent GB-993420-A (GB)
Title: Improvements in refrigeration cabinets
IPC: F25D11/00
Filed: 1961-09-21
Abstract: 993,420. Refrigerators. ELECTROLUX Ltd. Sept. 21, 1961 [Sept. 24, 1960], No. 33782/61. Heading F4H. A refrigerator cabinet cooled by an absorption refrigeration system the insulation for the cabinet and for the boiler of the absorption system are contained in a single continuous space 17 defined between the outer shell 16, the inner liner 15 and a plate 23, 31. Only the flue 22 of the boiler is visible in the Figure. During assembly of the cabinet foamed plastic or rock wool insulation 33 is first placed round the boiler and then the remainder of the continuous space 17 is filled with foamed plastic insulation. Liner 15 is formed of polyethylene and the shell 16 of metal, the cabinet having a top access opening with a lid and being provided with carrying handles.
Patent GB-302347-A (GB)
Title: Improvements in surface condensers for steam
IPC: F28B1/02
Filed: 1928-11-17
Abstract: 302,347. Ingersoll-Rand Co., (Assignees of Kirgan, J. F.). Dec. 16, 1927, [Convention date]. Surface condensers.-In a surface condenser of the type having a partition J dividing it into warm compartment and a cool compartment, the water tubes B are arranged in staggered relation in the warm compartment while in the cool compartment they are arranged to form steam lanes K by bending alternate rows into vertical alignment with the remaining rows. A predetermined parallel flow of steam in the lines K may be obtained by means of strips of wood 0, inserted therein preferably parallel to the partition J.
Patent GB-1186866-A (GB)
Title: Photographic materials
Inventor: PADDAY JOHN FRANK
IPC: G03C1/79
Filed: 1966-07-28
Abstract: 1,186,866. Coating. KODAK Ltd. 27 July, 1967 [28 July, 1966], No. 33921/66. Heading B2E. [Also in Division G2] Sheet photographic material is prepared by coating an aqueous composition containing a hydrophilic colloid at a rate greater than 100 ft. per minute onto a dried hydrophilic colloid layer formed by a previous operation, the dried layer having been formed from an aqueous composition containing a polyalkylene oxide condensation product which increases the hydrophilic nature of the air surface of the layer when dried. The dried layer may be a gelatine layer, a pigmented layer, e.g. a baryta layer, or a light sensitive layer, e.g. a photographic emulsion on which is to be coated a layer of a hydrophilic colloid such as a filter layer or a protective layer. The aqueous composition containing the polyalkylene oxide condensation product may be coated onto a support, e.g. a paper support, or it may be coated onto another layer of a hydrophilic colloid. The sheet photographic material may comprise a photographic silver halide paper, e.g. silver bromide, chloride or chlorobromide paper, wherein a light sensitive photographic emulsion is coated say at a rate greater than 200 ft. per minute onto one or more supported baryta layers, at least the top baryta layer containing the polyalkylene oxide condensation product. The layer coated onto the dried layer may also be an insensitive layer, such as a nucleated layer for use in the silver salt transfer process, a plain gelatine layer, or an anti-halation layer. Suitable condensation products are condensation products of an alkylene oxide containing from 2 to 4 carbon atoms with a straight or branched chain alcohol or an alkyl phenol, the product containing from 4 to 15 condensed alkylene oxide units.
Patent GB-818549-A (GB)
Title: Ball and socket joints
Inventor: BASHFORD GORDON DENNIS
IPC: F16C11/06
Filed: 1956-11-07
Abstract: 818,549. Ball and socket joints. ROVER CO. Ltd. Oct. 22, 1957 [Nov. 7, 1956], No. 33966/56. Class 65(2) In a ball joint comprising a ball d which co-operates with a seating c in a socket a and is rotatable on a spindle ,g extending through a central bore in the ball, a groove e in the ball is engaged by a pin f fixed in the socket to prevent rotation of the ball about its axis relative to the socket. A sleeve o secured to the ball extends out of the socket and a flexible sealing envelope r is attached to the socket and sleeve. An annular seal q is situated between one end of the sleeve and the spindle. The seal q and envelope r are made of rubber or like material, and the sleeve o carries a flanged collar s forming an annular groove for the envelope. The seal permits the spindle to rotate relative to the sleeve and the ball.
Patent GB-1373092-A (GB)
Title: Card vending apparatus
IPC: G07F11/42
Filed: 1971-10-13
Abstract: 1373092 Feeding sheets J FLETCHER 13 Oct 1971 [14 July 1970] 33988/70 Heading B8R [Also in Division G4] Apparatus for vending picture postcards comprises a housing, a platform 13 for holding a pile of cards C and means 18 for dispensing cards one at a time from one end of the pile, the housing having a transparent panel 14 through which the picture on the card ready for vending at the end of the pile is visible. In the embodiment described the pile of cards is urged towards panel 14 and roller 18 by a spring 28 acting on slidable plate 22. After the deposition of coinage an electric motor is energized to rotate roller 18 and strip a card from the end of the pile and propel it through a gap 21 between platform 13 and roller 18. The gap 21 is adjustable in width by means of screws 16 to accommodate different thicknesses of card. A switch (29) (Fig. 1, not shown) may be provided to de-energize the driving motor after one card has been dispensed. A number of such apparatus may be included in a single vending machine, with a common coin receiving mechanism, and selector buttons for controlling the respective motors.