baber/WOPTO huggingface dataset:
Patent GB-279920-A (GB)
Title: Improvements in machines for manufacturing marbles or other spherical bodies
IPC: B30B11/18
Filed: 1926-07-01
Abstract: 279,920. Marks, E. C. R., (Miller, Inc., W. J.). July 1, 1926. Rolling-machines.-A machine for making marbles or spherical bodies from glass or other plastic material comprises a pair of rolls provided with helical peripheral grooves, and the axes of the rolls are disposed in a plane inclined to the horizontal. The machine comprises two end members 1, 2 the distance between which may be adjustable to accommodate rolls of different lengths, a shaft 5 journaled in the end members, and a, pair of arms 7, 8 loosely mounted on the ends of the shaft 5. The grooved rolls 33, 50 are rotatably mounted on shafts 31, 47 which are secured to the arms 7, 8 respectively. Shafts 13, passing through swivel blocks pivoted on the arm 7, 8, enable the arms to be swung to or from one another about the shaft 5. Thus by turning the shafts 13, the grooved rolls may be separated by any desired amount, and they may be disposed in parallelism or in angular relation with one another. Other screwed shafts 18 enable the arms 7, 8, and the rollers, to be swung about the shaft 5 and locked in position, so that the inclination of the plane containing the axes of the rollers can be varied. The roll 33 is loosely mounted on the shaft 31 and is driven by a. gear wheel 35, Fig. 1, secured to a hub 34. A ball race 41 is placed between the hub 34 and a collar 39 fixed to the shaft 31, and a spring 38, coiled on the shaft forces the roll towards the collar 39. The ball race is inclined, so that the roll, as it rotates on the shaft 31, is given a continuous reciprocation along the shaft 31. The other grooved roll 50 rotates on the shaft 47 and both rolls are driven in unison by a spur wheel 80 on the shaft 5, the direction of rotation being such that the roll 33 moves upwards at the meeting faces. Each roll has a continuous helical groove 52, 53 and a " gob " of the plastic material is deposited between the grooves at the feed ends of the rolls from a feed funnel 64 pivoted on a fixed lug 60. The lower end of the funnel is retained in registry with the grooves 36 by a roller 67 which engages in a cam groove 66 on the roll 50. The '' gobs " may be cut by automatic shears 69. Lugs may be fitted in the initial grooves to turn the "gobs" and start the rotation, and a " kick-out 74, consisting of a screw with an undercut head, may be fitted to kick out the sphere into a trough 76. A trough 77 is also provided to receive spheres which may pass entirely through the grooves. When large marbles are being made, the rolls are separated by a relatively large amount, and by inclining the rolls to one another, the marbles may be discharged by falling between the rolls. An air blast, or a finger that is inserted automatically between the rolls, may also be provided to discharge the spheres. The marbles may be sorted by running them along a pair of inclined bars the space between which increases from the higher to the lower end. The marbles roll down the bars and fall between them at different distances according to their diameters.
Patent GB-695837-A (GB)
Title: An indicating device for use in traffic
IPC: G08B5/00
Filed: 1951-07-13
Abstract: 695,837. Road-traffic signs. MUNCKTON, F. E. P. May 22, 1952 [July 13, 1951; Aug. 7, 1951; Dec. 10, 1951], Nos. 16650/51, 18573/51 and 28854/51. Class 3 (ii) A road-traffic sign comprises one or more reflector studs carried on a support 10 comprising a flat strip of uniform thickness arranged to extend lengthwise over a hand and fitted at each end with a ring, one of which can be slipped over a wrist and the other over a finger. The reflectors 11 are each attached by means of a frame 12 to the strip 10, the frame having bent-over prongs 13 which engage apertures in the strip. The strip has an elastic ring 15 at one end for engaging the finger and a strap 16 at the other end for securing it to the wrist. One end of the strap passes through a loop 17 on its other end and is held by a press button fitting, part of which 19 is adjustably positioned intermediate the ends of the strap.
Patent GB-706178-A (GB)
Title: Hydration of secondary butyl ether
Inventor: HOWLETT JOHN
Filed: 1950-07-05
Abstract: Di-secondary-butyl ether is hydrated to form secondary butanol by a process which comprises interacting the ether in the liquid phase with aqueous sulphuric acid of concentration 70-78 per cent. by weight at temperatures between 50 DEG  and 75 DEG C. using a mole. ratio of ether to acid not exceeding 0.3 to 1 and a reaction time of 5-60 minutes.  The preferred molar ratio is between 0.01 to 1 and 0.2 to 1.  The process of the invention may be carried out in a modified form in conjunction with the known process for the production of secondary butanol from 1- and 2-butenes or mixtures thereof by sulphation using temperature and sulphuric acid concentration within the range specified above, the secondary butyl ether recovered as by-product being recycled to the butene sulphation stage, the total contact time of ether to acid being limited as specified above.  It is preferred to absorb the recycled by-product ether in the sulphuric acid in a first zone under atmospheric pressure the butenes being absorbed in the acid mixture from the said first zone under increased pressure in a butene absorption zone, using a total contact time of ether to acid of 5-60 minutes in the two zones taken together.  The results obtained by carrying out the hydration with 75 per cent. sulphuric acid at 60 DEG C. and 70 DEG C. using molar ratios of ether to acid of 0.13 to 1 and 0.065 to 1 are illustrated graphically (conversion being plotted against time) and it is preferred with acid of 75 per cent. concentration and molar ratios of ether to acid within the range of 0.01-0.1 to 1 to carry out the treatment for 30 minutes at 60 DEG C. while with molar ratios in the range 0.1-0.2 to 1 the treatment is preferably carried out for 15 minutes at 70 DEG C. U.S.A.  Specification 1,733,720 is referred to.  According to the Provisional Specification sulphuric acid of 65-80 per cent. concentration may be used and it is stated that the reaction may be interrupted by dilution with water before a substantial degree of polymerization occurs.
Patent GB-182772-A (GB)
Title: Improvements in and relating to furnaces for oil stills independently fired superheaters and other gas heaters
IPC: F23C99/00
Filed: 1922-06-16
Abstract: 182,772. Power Specialty Co., (Assignees of Primrose, J.). July 2, 1921, [Convention date]. Superheating-tubes with external coverings; overheating of superheating tubes, preventing.- In furnaces for steam-superheaters &c. comprising heating-tubes 5 arranged in a conduit screened from the fire-place, the wall facing the conduit is cooled to minimize the destructive action of heat radiated therefrom on to the tubes 5. As shown applied to an oil still, the roof of the fire chamber is composed of refractory blocks 3 through which pass oil tubes 4. The roof of the tube chamber is composed of exposed tubes 4. The roof tubes are connected in series with those of the bank 5, and all tubes exposed to the hot gases are preferably of steel encased in corrugated rings of cast-iron.
Patent GB-595000-A (GB)
Title: Improvements in or relating to recording apparatus
IPC: G01L21/02
Filed: 1944-09-04
Abstract: 595,000. Vacuum gauges ; recording- apparatus. RINGROSE, H. T. Sept. 4, 1944, No. 16782. [Classes 106 (ii) and 106 (iv)] An apparatus for recording conditions of vacuum comprises a driven recording disc or chart and a pivotally balanced indicator arm, the pointer of which is brought into contact, with the disc to mark it, at regular intervals of time and synchronously with the creation of the vacuum to be measured, by energizing an electromagnet. The apparatus may be connected to a porous pot in which a vacuum is created periodically by acting on a sample of the atmosphere by heat from an electric filament or by a chemical absorbent in order to detect the presence of certain gases or vapours by the resulting change of pressure. The indicator arm 3 is balanced by means of a counterweight 4 and a hair spring and is connected to a diaphragm 16 by means of adjustable levers. The diaphragm may also be adjusted by a screw 30 to set the zero. The electromagnet operates an arm 9 to bring the point of the indicator arm into contact with an inked ribbon, which may be driven to avoid local wear, and so to mark a clockwork-driven disc 2. Contacts, periodically made and broken by the clockwork motor, energize the filament contained in the porous pot (not shown) and then energize the electromagnet so that the drop in pressure in the porous pot, which is connected by a tube to the diaphragm, is recorded. A capillary tube leading into a vessel containing liquid allows pressure greater than that of the atmosphere to be released. This tube and container may be transparent and have an illuminated scale to afford an additional indication of the vacuum.
Patent GB-992219-A (GB)
Title: An arrangement for suppressing corona at the exits of stator windings
IPC: H02K3/40
Filed: 1964-04-23
Abstract: 992,219. Insulation for dynamo-electric machines. BROWN, BOVERI & CO. Ltd. April 23, 1964 [April 25, 1963], No. 16819/64. Heading H2A. In an arrangement for suppressing corona at the slot exits of stator windings having an anti-corona coating 4 which is joined at 6 to a further coating 5 covering the overhang portion, the joint is protected by a sleeve of insulation 7 which is itself covered with an anti-corona coating 8 making contact with the others, 4 and 5. The anti-corona coatings may be of silicon carbide and the insulation 7 of mica tape secured by resin. The phases may be separated by semi-conductor cement or silicone rubber. The use of graded semi-conductive coatings and trumpet-shaped electrodes is stated to be known.
Patent GB-565701-A (GB)
Title: Improvements in or connected with collapsable showcards or display devices
IPC: A47F5/11
Filed: 1942-11-27
Abstract: 565,701. Showcards. HILDESLEY, Ltd., H., and GOODCHILD, E. A. H. Nov. 27, 1942, No. 16827. [Class 3 (ii)] A collapsable showcard or display device comprises a front portion to the rear of which is hinged a back portion having a vertical or inclined line or lines of hinging, so that the device may be opened out for self-supporting display configuration, a locking tab automatically engaging with shoulders or projections on the back card when erected. Fig. 4 shows the rear view of such an erected showcard, the front comprising three tiers 1, 10, 7, of which the lowest 1 has two vertical creases, and the middle 10 one vertical crease. The locking tab 8 is hinged to the rear of the middle portion of the lowest tier 1 and extends through a slot 4 in the back portion 2. The tab has a recessed end engaging shoulders 4a on the lower edge of the slot 4. Fig. 16 is the front view of another form in which the lower tier 1 is spaced from the top tiers 7, 10 by a sloping intermediate tier 18 hinged to the rear portion and creasedly connected, to one end of which is a strip card 19, the upper end of which is slidable in an opening in the top 7, 10. In other forms, the tier 1 may have upwardly projecting representations which stand in front of the top tier 7, and in further modifications a horizontal platform is provided over the tier 1 to act as a display table for articles. In the construction shown in Fig. 18, the tier 7 extends to the base of the structure and has an opening 16 to receive a displayed bottle &c. In this form the rear portion forms a vee hinged to the rear of the parts 1 of the lower tier along inclined lines. Flaps 17 turned in from the top 7 support the displayed article.
Patent GB-545446-A (GB)
Title: Apparatus for board-setting of textile materials
IPC: D06C5/00
Filed: 1940-11-23
Abstract: 545,446. Apparatus for board-settiiig textile materials. DU PONT DE NEMOURS &,CO., E. I. Nov. 23, 1940, No. 16835. Convention date, Nov. 24, 1939. [Class 15 (i)]  Apparatus for treating textile products with a moisture-containing vapour comprises a base carrying a movable mounting plate for carrying the products and a tank which forms, with the mounting-plate, a pressure-tight chamber in which the treatment is effected. As shown, the apparatus is for treating stockings which are stretched on forms- 113, Fig. 5, pivotally mounted between side bars 105, Fig. 4, carried on a plate 103 on the wall of a triangular prismatic member 22 which forms the closure for the tank, there being a plate 103 and pivoted forms on each face. The member 22 is rotatably mounted on a shaft 73 fitted with hook members 72 engaging the ends 54 of rods 50  passing through tubular members 47 in the tank to a cross piece 87 fitted with a central screwed member 90 engaging the end 42 of the tank. The latter is mounted on wheels operated by a hand wheel to traverse the tank from the position. shown in Fig. 5 to the position shown in Fig. 4, in which the shaft 73 can be rocked to engage the hooks 72 with the ends of the rods 50, the hand wheel 91 being then operated to effect a pressure-tight enclosure. A spring-influenced locking pin 121 engages spaced holes in the member 22 to lock it in its operative positions, and the shaft 73 is rocked through a link 84 by a hand lever 80. The forms can be pivoted upwards, a spring catch 116 engaging a notch 115 in a sector 111 secured to each form. The  tank is lagged and is provided with admission and exhaust valved apertures ; it may be heated by steam coils.
Patent GB-219030-A (GB)
Title: Improvements in pumps and compressors
IPC: F04B9/02
Filed: 1924-07-14
Abstract: 219,030. Fumero, F. E. July 14, 1923. [Convention date]. Screw - actuated pumps.-In a pump or compressor, the pistons 10<1>, 102 of two coaxial cylinders M<1> M<2> are actuated by screw and nut glaring 1, 2 driven by the gear train 6, 7, 8. The pistons are prevented from rotating by projections H<1>. H<2> sliding in slots in the cylinders. These projections may reverse the driving gear at the end of the strokes by engaging pins T on a sliding rod X and thus operating levers W, Z connected to a clutch 14 in the driving gear. In another form, the clutch is operated by a screwed portion of the shaft A engaging a nut B connected to the clutch through levers and a rod carrying two stops.
Patent GB-458102-A (GB)
Title: Manufacture of oxyaryl-aminoanthracene derivatives
Filed: 1935-06-12
Abstract: Oxyarylaminoanthracenes are made by condensing an oxy- or amino-anthracene or a nuclear substitution product thereof in presence of a bisulphite solution, with an oxyaminobenzene or a nuclear substitution product thereof, under reflux or under pressure. According to examples: (1) 2-oxy-anthracene-3-carboxylic acid and 1-oxyanthracene are condensed with p-aminophenol to give the corresponding 2- or 1-p-oxyphenylaminoanthracene, and (2) 2-oxyanthracene-3-carboxylic acid is condensed with 2-chloro-4-amino-1-oxybenzene-6-sulphonic acid to give 3<1>-chloro-4<1>-oxyphenyl-2-aminoanthracene - 5<1> - sulphonic acid. Specification 282,111, [Class 2 (iii)], is referred to.
Patent GB-830977-A (GB)
Title: Improvements in or relating to electric clock movements
IPC: G04C3/06
Filed: 1956-06-01
Abstract: 830,977. Oscillating electric motors. RICH, W. June 1, 1956, No. 16950/56. Class 35. [Also in Group XVIII] A battery-driven electric clock comprises an electromagnetically maintained balance and a polarized armature which drives the train and motionwork. The balance comprises an armature 1, Fig. 1, mounted on a spindle 2 and oscillating in a first magnetic field 7 of an electromagnet 8. Rotating in step-by-step manner in a second magnetic field 9 of the electromagnet 8 is a polarized armature 5 which, through gearing 10-15, drives the minute hand 17 connected through the motion work to the hour hand 23. The minute wheel 15 is frictionally mounted on the shaft 16 to allow for hand setting and is fixed to a pinion 24 which meshes with a gear 25 to wind up an alarm spring within a barrel 27 which drives the alarm train 29, 30 controlling an alarm anchor and hammer 37. The alarm release is effected by a snail cam and follower arrangement, Fig. 2 (not shown). The contact arrangement for periodic energization of the electromagnet 8 comprises two pins 48, 49 which co-operate respectively with two spring fingers 46, 47 to form two switches in circuit with the battery 56 and the coils 52, 53 of the electromagnet 8. The switches 46, 48 and 47, 49 are allowed to close alternately by oscillation of a member 45. A pin 43 extends from the member 45 and co-operates with a pin 42 on the balance 1.
Patent GB-589439-A (GB)
Title: Improvements in and relating to sawtooth oscillation generators
IPC: H03K4/16
Filed: 1944-09-05
Abstract: 589,439. Saw-tooth waveformgenerators. MULLARD RADIO VALVE CQ., Ltd., and SPOONER, A. M. Sept. 5, 1944, No. 16954. [Class 40 (v)] A saw-tooth generator of the blocking oscillator type is combined with a multi-electrode valve which displays a negative resistance characteristic, has synchronizing pulses applied to the first control grid and has the second control and screen grids coupled to the control grid of the blocking oscillator, the screen grid coupling comprising a small capacitor. The Figure shows a blocking oscillator triode section 1 in which capacitor 9 charges slowly through resistor 8 while grid 3 remains below cut-off and discharges rapidly through the valve when a blocked oscillation occurs. Screen grids 15, 16 of the hexode section are coupled to the second control grid 2 by means of a small capacitor 18 and grid 2 is connected internally to control grid 3 of the triode section. A positive synchronizing pulse at grid 10 produces a very steep wavefront at grids 2, 3 by cumulative transitron action which intensifies the blocked oscillations in the triode section and causes a more rapid discharge of capacitor 9. The hexode section may be replaced by a separate pentode valve and its control grid may be biassed to cut-off.
Patent GB-274631-A (GB)
Title: Improvements in and relating to gas meters and like measuring instruments
IPC: G01F15/00
Filed: 1927-04-07
Abstract: 274,631. Taunton, R. P., and McIndoe, R. W. April 7, 1927. Stuffing-boxes, substitute for; boxes. - In a packing for a spindle m of a gas meter &c. of the type in which an inverted cup d carried by the spindle dips into mercury or other liquid in a stationary chamber a having a central bearing steeve b, the sleeve b is formed with an enlarged head r seating in the bottom of the cup d. The, sleeve b is screwed into the bottom of the chamber a and is formed with a flange g with which the end of the cup d engages. A nut e, screwed into the chamber a, engages a flange k on the cup d'.
Patent GB-728070-A (GB)
Title: Improvements in yarn carriers of knitting machines
Inventor: START PERCIVAL ARTHUR BENTLEY
IPC: D04B15/54
Filed: 1951-07-05
Abstract: 728,070. Knitting-machines; yarn supply. COTTON, Ltd., W. July 7, 1952 [July 5, 1951], No. 16978/52. Divided out of 728,046. Class 74 (2). A plate 9 is creased to provide, on its one side, a locating rib which fits in an axially extending slot or groove 16 in the strip-like yarn carrier 2 and, on its other side, an axially extending yarn receiving channel 17 running between yarn guiding holes 13, 14. The groove 16 extends into the top bend A of the carrier to form a guide for the threader used in threading up the carrier. An axial aperture 18, of greater width than the thickness of the yarn, extends in both directions from the lower bend B in the carrier, being interrupted at one point by a yarn guiding surface 19, which may be an integral bridge or a piece of wire and is preferably set back from the forward surface of the carrier. One or more eyelets 20 may be provided. In an alternative form of plate 9, the eyelet 13 is formed in an upward extension of the plate, to locate the eyelet at a higher level. Those parts on which the yarn rubs may be chromium plated or of a cemented carbide. The fixing holes 8 may be in the form of slots. The feed tube 21 may be mounted as in Specification 728,046.
Patent GB-1525906-A (GB)
Title: Surface acoustic wave device
IPC: H01L41/00
Filed: 1977-04-25
Abstract: 1525906 Surface wave filters INTERNATIONAL BUSINESS MACHINES CORP 25 April 1977 [14 June 1976] 17022/77 Heading H3U A surface wave filter comprises an input transducer 12 with finger spacing corresponding to f01, a coupler 16, and an output transducer 14 with finger spacing corresponding to f02, the fingers of each transducer being weighted to produce a respective pair of passbands around the corresponding centre frequency, and the second passband of the input transducer coinciding with the first passband of the output transducer. Thus the filter has a centre frequency f0 differing from the frequencies corresponding to the finger spacings. Multiple transit signal suppression is also achieved. (For figures see next column)
Patent GB-861192-A (GB)
Title: Improvements relating to alloy steels
Inventor: IRVINE KENNETH JAMES
IPC: C22C38/16
Filed: 1956-06-01
Abstract: Steel alloys have compositions in the following range of proportions in per cent by weight:  .C.less than 0.2 .Si.up to 1.0 .Mo.at least 0.3 .Mn.at least 0.25 .B.up to 0.005 .one or more of Cr, Ti, Ni, Cu. .Fe.the balance, the amounts of the constituents being such that Mn% plus Cr% plus 4/5 Mo% plus 8/15 Ni% plus 5/3 Ti% plus 4/15 Cu% lies between 2.5 and 3.5, the Ti% (if any) not exceeding 0.5 and there being at least 0.0012% of soluble B.  Some or all of the Mo may be replaced by twice as much W.
Patent GB-1237812-A (GB)
Title: Improvements in or relating to rotary pan mixers
Inventor: HODGSON THOMAS RAYMOND
IPC: B01F9/10
Filed: 1969-04-01
Abstract: 1,237,812. Mixing. LINER CONCRETE MACHINERY CO. Ltd. 1 April, 1970 [1 April, 1969], No. 17081/69. Heading B1C. A rotary pan mixer for concrete or other materials has at least three rollers 11 to support pan 12, and at least three guide rollers 13 to bear against annular ring 14 depending from the circumferential edge of the pan. Instead of being mounted on inclined axes as shown rollers 11 may be mounted on horizontal axes and be either frusto-conical or cylindrical. Ring 14 may be integral with drive casing 11.
Patent GB-421132-A (GB)
Title: Improvements in or relating to announcement slides or the like for use in cinematograph and similar projectors
IPC: G03B21/64
Filed: 1933-06-15
Abstract: 421,132. Lantern slides. MORGAN, H. M., 34, Red Lion Square, High Holborn, London. June 15, 1933, No. 17154. [Class 98 (ii)] An announcement slide for use with kinematograph &c. projectors is made of or comprises heatresisting glass. As shown, the slide A, Fig. 2, which is furnished with a backing C marked with lines D as in Specification 216,349, [Class 98 (ii)], is made of heat-resisting glass and is furnished with rounded corners B. The backing may also be printed or stamped with a fancy pattern E enabling parts of the backing to be removed, leaving transparent areas F which may register with coloured areas H in a cover slide G, Fig. 3. When a cover slide is employed either or both slides may be of heat-resisting glass and the two slides may be hinged together by means of an adhesive strip.