baber/WOPTO huggingface dataset:
Patent GB-1316995-A (GB)
Title: Method of separatingmixtures of fine-grain materials on the basis of a difference in specific gravity and an installation for performing such a method
IPC: B03B5/34
Filed: 1970-06-18
Abstract: 1316995 Wet separation of solids SOC ANON CRIBLA 18 June 1970 [18 June 1969] 29718/70 Headings B2P and B2H A mixture of fine grain particles is centrifugally separated into fractions by feeding the mixture through a rotating gas-liquid dispersion in a direction perpendicular to the direction of rotation, gas bubbles adhering selectively to particles in the mixture, particles of greater effective specific gravity moving to and being recovered from an outer region of the liquid and particles in the adhering gas bubbles of lower effective specific gravity being recovered from an inner region of the liquid. Water is fed from a tank 25 together with air drawn through a pipe 26 to a pump 23 which feeds the resulting air-liquid dispersion via a tangential inlet 16 into a cylindrical tank 15 so that the dispersion travels along a helical path. The mixture of grain particles to be separated is supplied from a container 27 via a central inlet 19 in a direction transverse to the helical path of the dispersion. One fraction of the particles moves outwards and is discharged with part of the liquid via a tangential outlet 17 and a pipe 31 into a tank 32. The other fraction with adhered air bubbles and the remainder of the liquid are discharged through a central outlet 21 and a pipe 29 into a tank 30. The light fraction may be formed by the heavier particles if the air bubbles have a greater affinity for these particles than for the lighter particles. A conditioning agent may be added to the liquid via a pipe 33.
Patent GB-759891-A (GB)
Title: Lock for jet thrust reversing mechansim on aircraft
IPC: F02K1/76
Filed: 1954-10-15
Abstract: 759,891. Jet propulsion plant. BOEING AIRPLANE CO. Oct. 15, 1954 [Feb. 23, 1954], No. 29776/54. Class 110(3) [Also in Group XXXIII] In a jet propelled aircraft in which the rear part of a nacelle or fairing surrounding a tailpipe comprises a pair of opposed hinged flaps for deflecting the jet gases forwardly, locking means are provided to retain the flaps in their inoperative position. The nacelle 90 terminates in a pair of opposed flaps 93a, 93b which surround the rear end of the tail-pipe 92 and are pivoted about their rear ends on a pivot 95 by jacks 96a, 96b so that their rear edges abut and their forward edges move outwardly and rearwardly to provide two deflecting faces for the jet gases. To ensure that, when closed, the flaps are not swept open by the rearwardly moving air stream locks are provided for each flap which comprise (described for flap 93b only) a roller 2 pivotally mounted on. the upper edge of the flap at its forward end and a slotted plate 1 pivotally mounted on a shaft 10 secured to a structure within a member 91 which supports the nacelle. A vane 3 is secured by a hinge 30 on its forward edge to the outer fore and aft wall of the member 91 and is connected by a link 41 to an arm 4 fast with the shaft 10. With the flaps 93a and 93b closed to complete the nacelle contour, the roller 2 rests in the end 12 of the slot in the plate 1 which has been rotated to a position where the slot prevents outward movement of roller 2 and the linkage 4, 41 has moved the plate 3 from the position shown to a position adjacent the side of the member 91 where it is held by the relative airflow. When the flaps are pivoted outwardly by the jacks 96a and 96b the roller 2 rocks the plate 1 to a position where the roller leaves the end 11 of the slot and the linkage 4, 41 moves the vane 3 against the action of the relative airflow to a position shown by partial chain-dot lines in which the linkage passes just over a dead-centre position whereby the airflow on the flap 3 assisted by a spring loaded toggle 14 holds the mechanism in the appropriate position for the entry of the roller into the slot in plate 1 when the flaps are retracted. Specification 754,808 is referred to. Reference has been directed by the Comptroller to Specification 638,063.
Patent GB-1343330-A (GB)
Title: Electric timepieces
IPC: G04C3/14
Filed: 1971-06-25
Abstract: 1343330 Electronic watches SUWA SEIKOSHA K K 25 June 1971 [27 July 1970] 29889/71 Heading G3T An electronic watch comprises a crystal controlled oscillator F 0  Fig. 4 followed by a chain of MOS-FET integrated circuit frequency dividing stages, outputs from which are fed to a pulse forming circuit AS Fig.4 also Fig.5 (not shown) and logic gates 1BS, 2BS, 1CS, 2CS which produce four trains of pulses Fig.3 (not shown) at the same frequency and suitable phase relation and which respectively control drive circuit transistors 6, 7, 8 and 9 Fig. 2 such that transistors 6 and 8 conduct simultaneously to pass current in one direction and 7, 9 conduct simultaneously to pass current in the opposite direction through coils 3 of a stepping motor 2 having a permanent magnet rotor 1. The motor is coupled to a second hand and via gear trains (not shown) to minute and hour hands.
Patent GB-1402224-A (GB)
Title: Production of chocolate sweets
IPC: A23G3/00
Filed: 1973-06-22
Abstract: 1402224 Chocolate sweets M F FISSOLO 22 June 1973 [22 June 1972] 29906/73 Heading A2B A chocolate sweet is produced by making an aqueous solution containing sugar and flavouring which solution has a sugar saturation temperature above 20‹C, and putting a quantity of this solution whilst still at an elevated temperature i.e. above 20‹C into a chocolate shell which is at a temperature not above 0‹C and allowing the solution to cool in the shell so as to form a crust of sugar between shell and solution, such crust remaining when the sweet returns to 20‹C. The aqueous solution first formed preferably has a sugar saturation temperature above 30‹C. The wall thickness of .the shell is at least 1.5mm and the shell weighs at least half as much as the weight of solution put into it. The solution may be unsaturated when placed in the shell and at a temperature higher than the incipient fusion pt of the chocolate. After filling, the opening is sealed with chocolate.
Patent GB-746471-A (GB)
Title: Automatic machine for the casting and stripping of pistons of thermal engines
IPC: B22D15/02
Filed: 1951-12-24
Abstract: 746,471. Casting. M.A.F. SOC. CIVILE D'ETUDES POUR MATERIEL DE FONDERIE. Dec. 24, 1951 [Dec. 23, 1950], No. 30130/51. Class 83 (1). Cores.-In a machine for casting heat-engine pistons using a two-part mould and a three-part core, the core is extracted from the cast piston by first withdrawing a central portion thereof and then withdrawing each of two lateral portions in succession by moving each one first laterally, then vertically and finally laterally in the opposite direction to the first movement. The lateral core-portions form the gudgeon-pin bosses in the piston. The machine comprises a frame 8, Figs. 3 and 5, carrying the mouldhalves 1, 2 moved by fluid-pressure rams 11, 12. The central core-member 3 is carried by a vertically-movable fluid-pressure ram 15 on an arm 16 which may be swung about a vertical axis x-x to give access to the core-parts for cleaning &c., and the lateral core-members 4, 5 are each carried by a support vertically slidable on a guide 26 attached to a yoke 24 horizontally slidable on guide-bars fixed to the frame 8. In operation, with the mould and core assembled as in Fig. 3, the piston A is cast and after solidification, fluid is admitted to the ram 15 to withdraw core part 3 downwards, after which fluid is admitted to a cylinder 20 to move yoke 24 to the right in the Figure and so move core part 4 to the centre of the piston. A valve 51, Fig. 14, is connected at 17 to the piston 19 of cylinder 20 to move therewith, so that fluid is now admitted by conduit 66 to a cylinder 28 causing its piston 30 to rock a latch 32 which has been supporting the core-part 4, thereby allowing 4 to drop along its guide 26 on to a stop 34, as shown in Fig. 5. Fluid is then admitted to cylinder 20 to move its piston and the parts 26, 4 to the left, as shown in Fig. 6. A similar series of movements is then applied to the core-part 5 and when both parts 4, 5 have been withdrawn fluid is admitted to rams 11, 12 to separate the mould halves and allow removal of the cast piston. Fluid is then admitted to ram 15 which is raised to operative position as in Fig. 3, and during its ascent a collar 48 thereon engages the core-parts 4, 5 to raise them also to operative position. Finally, fluid is admitted to rams 11, 12 to close the mould, and fluid also passes from ram cylinder 9, Fig. 14, by pipe 62 and valve 51 to cylinders 28, causing latches 32 to lock the core-parts 4, 5. The fluid connections which are not effected by the valves 51 are controlled in timed sequence by one or more distributers (not shown).
Patent GB-1513677-A (GB)
Title: Thin-walled bearing bushes
IPC: F16C33/14
Filed: 1975-07-18
Abstract: 1513677 Bearing bushes REKTORAT SLOVENSKEJ VYSOKEJ SKOLY TECHNICKEJ 18 July 1975 [29 July 1974] 30153/75 Heading F2A Thin walled bearing bushes are formed from sheet or strip material consisting of a steel base with a low friction coating on one face thereof, the material is of a length equal to the intended circumference of the finished bush plus an additional length, the ends of the strip are bent to a radius equal to that of the desired bush, whilst straight end sections remain at the very ends of the strip, when the length of these straight end sections is greater than 2À5 times the thickness of the steel base at least a part of this excess length is removed so that it no longer exceeds 2À5 times the thickness of the steel base, the strip is then bent on a roll bending device to form a semiproduct which is finally cut to a length equal to that of the circumference of the desired bush to form an open bush which may subsequently be closed.
Patent GB-1120101-A (GB)
Title: Improvements in and relating to film projectors
IPC: G03B19/18
Filed: 1965-07-16
Abstract: 1,120,101. Control of A.C. motors. EUGEN BAUER G.m.b.H. 16 July, 1965 [18 July, 1964], No. 30213/65. Heading H2J. [Also in Division G2] The A.C. motor 12 driving the film transport mechanism of a cine projector is rapidly halted electromagnetically by the discharge of a D.C. pulse from capacitor 33 into the stator windings of the motor by means of switch 24, actuated by a main relay 39, which, in its normal position, closes the A.C. supply circuit to the motor. The relay simultaneously actuates switch 28 to send a direct current at a lower voltage than the braking pulse into the stator windings to hold the motor in its arrested position. Correct phasing of the discharge with motor supply is obtained by means of rectifiers 43, 44 in the lead 38 from winding 36 of transformer 19 to relay 39. The relay actuating current is supplied from rectifier 43 at a higher voltage in one half-cycle, and a lower voltage relay holding current is supplied from rectifier 44 in the other half-cycle. The motor holding current circuit also opens switch 35<SP>1</SP>, whereby the main relay 39 may only be energized through switch 15 which is operated in synchronism with the film drive by a cam 14, 46 on the motor shaft. Switch 15 opens during the film feed stroke of a Maltese-cross system so that motor 12 restarts at a lower voltage and moves until cam 46 releases the switch 15, when relay 39 operates again. Switch 40 which controls relay 39, may be actuated by a remote control device.
Patent GB-722395-A (GB)
Title: Improvements in or relating to filling machines
Inventor: JENNER VICTOR GEORGE
IPC: B65B1/40
Filed: 1952-12-01
Abstract: 722,395. Automatic weight-control apparatus. UNILEVER, Ltd. Nov. 23, 1953 [Dec. 1, 1952], No. 30348/52. Class 38 (4). [Also in Group XVII] Apparatus for filling a succession of packets each with a predetermined weight of powder, consists of a belt feeder on which a constant weight of powder is automatically maintained, and a rotating feed turret beneath the belt feeder to funnel the powder into successive packets, which are moving in register with the turret, the speed of the turret being synchronized with the speed of the belt. Powder stored in a hopper 1, with an adjustable feed gate 5, is fed by a belt 2 to a belt 8 which, together with its drive motor 11, is suspended in a frame on knife-edge pivots 13 and linked to a weigher 14 which via proximity switches 17, 18 controls a reversible motor 21 to adjust the feed gate 5. Beneath the belt 8 is a guide funnel 30 and beneath this rotates a turret formed of 12 funnels 28. Secured to the same shaft as the turret is a conveyer 31 arranged so that the packets it carries each register with one of the funnels 28, so that as each funnel moves below the guide 30, a packet is filled. To ensure a constant weight in each packet, the belt 8 is driven at a speed synchronized with that of the conveyer 31 by linking the two by power Selsyns 34, 11.
Patent GB-780797-A (GB)
Title: Photographic camera shutter incorporating a flashlight synchronising switch
IPC: G03B9/70
Filed: 1952-12-01
Abstract: 780,797. Photographic shutters incorporating flashlamp synchronizers. BURGER, E. Dec. 1, 1952 [Dec. 10, 1951], No. 30428/52. Addition to 723,291. Class 98(1) In a shutter as described and claimed in the parent Specification, the cover blade controlling lever is modified to close the flashlight switch by a positive impulse. As shown in Fig. 1, the disc 25 serves only as a setting disc for a stationary contact 22a, the moving contact being the pin 21 on the curved arm of the bell crank lever 12 which also actuates the cover blades. Alternatively the setting disc may be a knob having an eccentrically mounted link connected to a insulated plate located between a fixed pin and a spring blade and bearing a conducting strip with which a lever pivoted on the plate and slotconnected with an insulated pin on the lever 12 makes a wiping contact, brushes connecting the switch contacts to the lamp circuit and the plate-locating pin and spring being eccentrically mounted for initial adjustment. In another embodiment (Fig. 3), the switch is operated from the cover blade operating lever 12 by means of a clockwise-urged pivoted lever 34 which rotates the pivotally adjustable setting disc 25 and through a linkage system 29, 30, 33 effects movement of a pivoted contact 32 against a pin 1a on the shutter blade ring. In a modification of this embodiment, the linkage is replaced by a lever pivoted on the disc 25 and movable by pivotal engagement around a fixed pin against spring action to move the contact 32.
Patent GB-901872-A (GB)
Title: Improvements in or relating to printing presses
Inventor: WARD RICHARD
IPC: B41F33/16
Filed: 1958-09-24
Abstract: 901,872. Printing-machines. LINOTYPE & MACHINERY Ltd. Sept. 24, 1959 [Sept. 24, 1958], No. 30510/58. Class 100 (2). A cylinder printing press has hydraulic means for controlling the timed movements of the impression cylinder during each machine cycle and electrical means controlling the operation of the hydraulic means. As shown, a solenoid valve SV, controlling the hydraulic system for putting the impression cylinder of a two-revolution machine " on " against the action of resilient means, is energized through a switch R on a rotary member, not shown, that makes one revolution each machine cycle. Contacts RA1 of a relay RA are closed when a relay RL having contacts RL2 is energized upon closure of a switch L1 and a switch Z to energize the relay RA. The switch Z is also on the rotary member, not shown. Opening of a switch L2 causes opening of contacts RA1 by de-energization of relay RA upon opening of contacts RL2. Opening of contacts RA1 deenergizes the solenoid valve SV to put the impression " off." For the operation of one complete machine cycle contacts IS are manually closed momentarily to energize relay coil RB through normally-closed contacts RL5, RL4 and RA4. Further switches L1, L2 and IS may be arranged in parallel with each of these switches to enable an operator to exercise control from a plurality of positions on the printing press. Specification 901,871 is referred to.
Patent GB-1044825-A (GB)
Title: Writing implement with a bendable casing
IPC: B43K24/02
Filed: 1964-08-04
Abstract: 1,044,825. Retractable writing instruments. H. BROSS. Aug. 4, 1964 [July 20, 1963], No. 30515/64. Heading B6P. A retractable writing instrument is retracted and projected by bending the barrel 1, Fig. 2, so that the refill or lead carrier 5 rides on the cam surfaces 7 and 8. The casing has a reduced cross-sectional area at the point of bending; such as slots 11. The wall thickness may be increased as in Fig. 4 (not shown), so as to strengthen the barrel in one plane other than the bending plane. Longitudinal ribs 13, Fig. 3 (not shown), may be provided instead of increasing the wall thickness. A multiple retractable version of the instrument is illustrated in Fig. 6 (not shown). Longitudinal ball-bearings 28, 29 may be provided to reduce friction. As well as the bending feature to operate the retracting mechanism, a rear push-button 54, Fig. 16 (not shown), may be provided together with a known ball-and-cam mechanism 44, 43. The conical depression 41 acts to move the carrier 5 longitudinally when the casing is bent.
Patent GB-174214-A (GB)
Title: Improvements in or connected with statistical systems
IPC: G06K5/00
Filed: 1920-10-28
Abstract: 174,214. Smith, N. G., and Accounting & Tabulating Corporation of Great Britain, Ltd. Oct. 28, 1920. Compiling and tabulating statistics mechanically. - Relates to means for checking the information on perforated statistical record-cards, and consists in mechanism for mechanically reproducing distinctive sounds, under control of a card, corresponding with perforations made in definite positions on the card. A row of sound - boxes 3 corresponding in number with the positions in which a perforation can occur in one column of the card are independently mounted within a common casing 8 with an ear-tube 9. Each soundbox diaphragm 5 carries rods 7, 6 connected to a style 4 positioned over a revolving drum carrying separate sound-producing records 1, so that a style can co-operate with its record drum only when a perforation is under the style. The cards 2 are fed from a pile by a picking-knife 28 and are intermittently moved through the machine a distance equal to the widths of a column by feedrolls 15 actuated from a shaft 19 by an eccentric 20, links 21, 22, and a rack 17, and pinion 18. To the link 22 is pivoted a hooked lever 31 with a pin 34 co-operating with a ratchet-wheel 35 with a deep notch 37 which allows the hooped-lever to engage a projection 32 on a lever 35 for effecting the actuation of the picking knife. To prevent injury to the cards during feeding forward, the styles are lifted clear of the cards by a roller 11 on the link 22 engaging arms 10 integral with the sound-boxes, the record-drum at the same time being lowered by a roller 26 actuated through links 28, 27, which engages a cam-plate 24 pivoted on a rod 25 and to which the recorddrum is attached. In a modification, the cards are moved forward on a carriage by the depression of a manually-operated key, and the separate styles are connected by a stretched wire to a common sound-box. Further modifications comprise the provision of auxiliary sound boxes and styles for naming the sections into which a card can be divided, means for stopping the card in a position to prevent the simultaneous sounding of number and section perforations, and the provision of a plate which is moved independently underneath a card and carries a diagonal row of holes for preventing simultaneous sounding if two perforations occur in the same column.
Patent GB-370917-A (GB)
Title: Improvements in or relating to compositions for making tennis courts, foot-paths, pavements, roofs or the like
Filed: 1930-10-13
Abstract: A composition for making tennis courts, footpaths or roofs, comprises an intimate mixture of fine mineral aggregate and a solution or mixture of resin in a heavy oil, the solution or mixture being used in such small proportion that the particles coated therewith form a mobile granular powder so that it may be laid cold by raking and rolling.  The aggregate is graded from dust to 1/8 -in. particles, of which 5-10 per cent is dust passing a 200 mesh sieve.  The resin may be coumarone or indene, and the oil a heavy petroleum distillate which may contain a small proportion of light distillates.  Colouring matter, e.g. red iron oxide or green chromic oxide may be added.  The mineral aggregate such as quarry waste, slag, or sand is dried and intimately mixed at 150-180 DEG  F. with the pigment and resin solution which has been prepared by heating 55 parts of resin with 45 parts of oil at 220-250 DEG  F.  The proportion of solution may be 5 per cent by weight of the aggregate.  Specifications 9929/09 and 236,345 are referred to.
Patent GB-691359-A (GB)
Title: Improvements in or relating to tube joints and method of producing the same
IPC: B62K19/22
Filed: 1949-11-29
Abstract: 691,359. Tube joints. BISMARCKWERKE STAHL - UND METALLVERARBEITUNGS AKT.-GES, and ALBERT, W. Nov. 29, 1949, No. 30596/49. Class 99 (i) [Also in Group XXXI] A tube joint for cycle, &c. frames, comprises socket and spigot members b, d, one or both of which have stepped terminal portions so dimensioned that they are force fitted over parts h, k of their overlapping length, and over the remainder of that length have a recess m for the reception of a thermo-setting plastic bonding material. The material has a hardening temperature up to 250‹C, and may be a synthetic rubber, or a resin based on ethoxylin. The joint may be inductively heated, or in the case of lacquered frames a lacquer having a stoving temperature corresponding to the hardening temperature of the bonding material is chosen. Examples are given of suitable dimensions and of suitable times and temperatures for the hardening process.
Patent GB-1110453-A (GB)
Title: Improvements in or relating to cooling systems for air-cooled internal combustion engines
Inventor: KRAMER DIETRICH
IPC: F01P5/06
Filed: 1965-07-19
Abstract: 1,110,453. Air cooled cylinders. DIESELMOTORENWERK SCHONEBECK VEB. July 19, 1965, No. 30596/65. Heading F1B. The cooling fins on air-cooled engine cylinders are flattened on their juxtaposed sides 5 and a common guide wall 12 with an inlet opening 13 and exhaust openings 11 surrounds the cylinders, the heat-exchanging surface of the fin portions 3 on the cooling air intake side being equal to, or less than, 65% of the surface of the fin portions 7 on the exhaust side. The cooling air may be supplied by a blower 1. The fins may be slotted and the thickness of the cylinder wall may vary along the circumference and along the axis of the cylinder.