baber/WOPTO huggingface dataset:
Patent GB-838183-A (GB)
Title: Improvements in and relating to spark extinguisher
IPC: F01N3/06
Filed: 1958-05-05
Abstract: 838,183. Spark arresters. TYDENS PATENTER A.B. May 5, 1958 [May 14, 1957; Jan. 31, 1958], No. 14338/58. Class 25 A spark extinguisher for an I.C. engine comprises a casing having two edgewise united parts a, b, Figs. 1, 2, forming a tapering constriction e along the periphery and a tangential inlet c through which exhaust gases from the engine are conducted such that glowing carbon particles contained therein are thrown with a rotary motion into the constriction e to be ground to dust before leaving the casing in the gases through a centrally connetted conduit d, which accommodates apertured discs h and may, as shown in dotted lines, open into the centre of the casing. In a modification the parts a, b, are oval whilst in another form the exhaust gases are introduced centrally through a pipe f, Fig. 4, having a guiding device g.
Patent GB-948881-A (GB)
Title: Airscrew with automatically variable pitch, especially for light aircraft
IPC: B64C11/34
Filed: 1962-04-13
Abstract: 948,881. Airscrews. M. A. VURPILLOT. April 13, 1962 [April 22, 1961], No. 14411/62. Heading B7V. In an airscrew with automatically variable pitch, each blade 1 pivots freely about an axis 3 which lies in a plane perpendicular to the axis of the engine shaft and which is oblique to the longitudinal central axis of the blade, the inclination D of the pivotal axis of each blade being such that, at full throttle, the engine gives its maximum admissible continuous power in the two conditions of horizontal flight at maximum speed on the one hand, and of climbing flight on the other hand. As shown in Figs. 2 and 3, at every condition of flight the forces acting on the blade are the aerodynamic traction T and the centrifugal force F, causing the blade to take up an inclination A towards the front, to which corresponds a pitch B, so as to obtain equilibrium between the forces about the axis 3. In Fig. 5, the blades 1 are fixed in sockets 7 attached by a bolt 8 (constituting the oblique pivotal axis for the blades) to lugs 6 on the hub having a flange 10 for connection to the engine shaft. Abutments may be provided to limit the displacements of the blades. The abutments limiting displacement in the direction reducing pitch may be controlled by a manumetric capsule mounted on the airscrew hub.
Patent GB-242547-A (GB)
Title: Improvements in shock absorbers
IPC: F16F9/02
Filed: 1925-06-04
Abstract: 242,547. Oels, R. C. G. Staats-. June 4, 1925. Fluid - friction vibrationdampers ; pneumatic springs. -Relates to apparatus in which a plurality of cylinders telescope into one another, air being compressed in each cylinder on one stroke and the flow being restricted on the other by valves. The smallest and largest cylinders 14, 16 are connected to the axle and frame of a vehicle, and flow of air between all the cylinders and the atmosphere is controlled by a central tubular sleeve 25 fixed to the largest cylinder 16 and a tube 26 slidable on the sleeve 25 within the limits set by a pin-and-slot connection 31, the valve thus formed being opened and closed by the first part of the outward and inward movements respectively of the cylinders. The sleeve and tube are perforated, the perforations coinciding when the apparatus is extending to allow free entrance of air but closing when the apparatus is contracting so that air is compressed in the cylinders. The tube 26 works in a bush 29 in the plunger of the smallest cylinder, the friction between the tube and bush being greater than that between the tube and sleeve. The degree of air compression in the cylinders may be varied by slightly varying the position of the perforations so that they are not moved entirely out of registry at any time.
Patent GB-833658-A (GB)
Title: Negative ion source
IPC: H05H7/06
Filed: 1956-05-10
Abstract: 833,658. Ion sources, particle accelerators. HIGH VOLTAGE ENGINEERING CORPORATION. May 10, 1956 [April 9, 1956], No. 14608/56. Class 39(1). In a negative ion source the negative ions are produced by directing a beam of positive ions into a capillary 2, Fig. 1, into which gas e.g. hydrogen or argon is introduced through a line 16. The negative ions are extracted and accelerated by an electrode 20 and focused by a saddle-field lens produced between electrodes 20 and 4. Electrodes 15, 3 and 20 may act as a lens to produce a cross-over. Electrode 3 serves to repel secondary electrons. The positive ion source 1 consists of an electron emitting spiral filament 8, anode 9, reflector electrode 12 and a focusing coil 11. A gas such as hydrogen or deuterium is introduced through a line 7. A single gas source may be used for both the positive ion source and the capillary. The gas entering the capillary may be cooled or provision may be made for cooling the capillary electrode 15. Electrode 15 may be in two parts, the part facing the positive ion source of molybdenum or beryllium-copper to yield secondary electrons which serve to neutralise the space charge within the positive ion source. The other part of electrode 15 may be of aluminium. Details are given of pumping speeds and relative spacings and dimensions. In pulsed operation both the positive ion source and the gas supply to the capillary may be pulsed. The beam of negative ions produced is diverted through a magnetic analyser to sort out ions of desired momentum. In Fig. 4, the beam of negative ions emerging from source 27 is directed to linear accelerators 28, 33 on belt-type electrostatic accelerators 29, 34, 37 to obtain pulsed beams of variable energy. In the electrostatic accelerators the negative ions may be converted into positive ions by imparting a foil 32.
Patent GB-143922-A (GB)
Title: Improvements in electric burglar alarms
IPC: G08B13/22
Filed: 1920-05-28
Abstract: 143,922. Doms, W. April 11, 1918, [Convention date]. Burglar alarms.-An electric system is provided with a key-operated nullifying device requiring a definite predetermined rotation of the key, depending on the previous setting, to bring the device to the " off " position. Means are also provided so that the alarm is automatically stopped after sounding for a predetermined period. The nullifying device consists of a conducting disk 8, the angular position of which on its spindle 4 can be adjusted on slackening a retaining-nut 13. The disk has an insulating segment 10, and is included, by means of spring contacts 11, 12, in circuit with the contact device 19 adapted to be closed when the door to be protected is opened or shaken, so that the device is " on " except when the contact 12 rests on the segment 10. To facilitate the necessary amount of rotation by the key in order to bring the segment 10 under the contact 12, the part 6 of the spindle engaged by the key is of isosceles-triangular or other cross-section to ensure that the key can be engaged in only one position, and the key is in two parts relatively angularly adjustable, and secured by a screw 35. One part 31 engages the spindle 6, the other 32 serving as an index, for which purpose the handle may have a pointer portion 34. The key is engaged with the part 6 and then rotated to bring the previously adjusted part 34 to some definite pre-known position, say pointing vertically upwards. Instead of an adjustable key1 a separate key may be provided for each setting of the device. Closure of the contact 19 energizes a magnet 21 and releases a detent 24, allowing a spring- driven contact-disk 26 in the alarm circuit to make one revolution of predetermined duration. The disk has an insulating segment 28 which comes under a contact brush 27 at the time the detent 24 registers with its co-operating recess, thus breaking the alarm circuit. The leads 18 in the electro-magnet circuit may be protected against cutting by known continuous-current arrangements.
Patent GB-1394532-A (GB)
Title: Storage and display package
IPC: B65D71/06
Filed: 1973-03-27
Abstract: 1394532 Packages PROCTER & GAMBLE CO 27 March 1973 [28 March 1972] 14669/73 Heading B8C A package for a rectangular array of containers, such as cartons or cans 10, comprises a flexible sleeve 12 in the form of a sheet of polythene, for example, which is wrapped round the sides of the array and seamed at 15, one end of the sleeve then being folded under at least part of the base of the array, the two wings so formed being turned up and sealed to the sides as at 19. Partial heat-shrinking may be employed in applying the sleeve in one embodiment. The sleeve is not applied under tension so that a band may be inserted between each wing and the containers 10 to apply lifting force F, this insertion tensioning the sleeve to grip and hold the array together. Tear-strips in the sides of the sleeve may be provided. Containers 10 may rest on a support sheet 11 to which sleeve 12 may be secured. Another form uses an opaque sleeve 12, apertured to expose price marks on the cartons, and completely covering the base of the array, hand holes being provided.
Patent GB-438371-A (GB)
Title: Two-metal staybolts for boilers
IPC: F22B7/16
Filed: 1934-05-15
Abstract: 438,371. Stay bolts for boilers. HAFFNER, G. D. J., 3, Rue Cernuschi, Paris. May 15, 1934, No. 14684. Convention date, May 20, 1933. [Class 123 (ii)] A two-metal stay bolt comprising a cylindrical core a of strong metal such as steel and a sleeve b of more ductile and non- rusting material such as copper, is constructed with recesses or bosses on the surface of the core which effect a longitudinal connection of the core and the sleeve due to the metal of the sleeve filling or entering the spaces on the core when it is being put into position, the sleeve extending the whole length to form part of the heads. In one construction, the surface of the core a is provided with a helical groove c. In an alternative form a series of spherical recesses d is formed along two opposite generatrices. Specification 373,943 ;s referred to.
Patent GB-1441822-A (GB)
Title: Door closers
IPC: E05F3/14
Filed: 1973-06-27
Abstract: 1441822 Spring hinges; spring door closers H-T GRISEBACH 27 June 1973 [27 March 1972] 14739/73 Headings E2F and E2M [Also in Division F2] A damped spring door closer, which may be incorporated in the door hinge, comprises first and second relatively rotatable parts A, B for attachment to the door and frame, one of the parts including, or being associated with a housing 25 (Figs. 1 and 2) which has therein at least two intercommunicating working chambers 34, 35, the door closer including spring means 27 relatively rotationally biassing the parts A, B, deflection of the spring means during relative rotation of the parts A, B in both directions (i.e. opening and closing of the door) producing a variation in the individual volumes of the chambers. In the embodiment of Figs. 1 and 2 a spiral spring 27 is connected between a shaft 29 fixed to the part A, and the housing 25. As the door is opened, the spring 27 winds up and -the chamber defined by the gaps between its turns gets smaller. Fluid therefore flows into the chamber 35 outside the spring, the flap valve 33 lifting. When the door closes under influence of the spring 27, fluid flows from chamber 35 back between the spring turns via the gap between the housing and the top and bottom edges of the spring. An elliptical member 31 on the shaft 29 coacts with curved leaf springs 38, 39 to provide an additional spring drive. After the door has opened to a predetermined extent detents on the springs 38, 39 co-act to provide a negative door-closing force. This ensures that the maximum closing force is obtained at the beginning of the opening movement and the minimum at the beginning of the closing movement. In the embodiment of Figs. 10 and 11 the housing 101 is resilient tubing which also provides the spring force to close the door. A shaft 103 with a rigid rib 104 is fixed to the part A. On relative rotation of parts A and B the tubing and integral rib 102 twists and fluid is transferred (by deformation of the rib 102) between the chambers defined by the two ribs. The spring may be a helical spring (Fig. 5 not shown); interconnected laminated leaf springs which zig-zag between the top and bottom of the housing (Fig. 6 not shown) or torsion bars of plastics material (Figs. 8, 12, 14 not shown) which may be reinforced by leaf springs, either singly (Fig. 14) or in stacks (Fig. 12). These springs are contained in rigid housings, except in Fig. 14 where the housing is a torsion tube. The intercommunicating working chambers are defined partly by the spring, except in Fig. 5 where the helical strip spring is surrounded by a split sleeve with overlapping edges, and the chambers are inside and outside the sleeve. The fluid is a rheopectic fluid i.e. one which exhibits a high resistance to high shearing forces but a relatively low resistance 'to low shearing forces. To avoid filling the housing with the rheopectic fluid, it is formed in situ from a specified silicon fluid and a specified hardening fluid. The door closer may be incorporated in a double hinge (Fig. 12).
Patent GB-110394-A (GB)
Title: Improvements in the Treatment of Refuse, Fibrous or the like Material.
Inventor: BEVIN WILLIAM STREITELL HUMPHR
IPC: D21B1/02
Filed: 1916-10-18
Abstract: 110,394. Bevin, W. S. H. Oct. 18, 1916. Flock.-In a process for treating fibrous or other residues or waste products, the material is lifted up a trunk by a suction action, to separate any large pieces of metal, stones, &c., and then passed through a flocker or agitator to separate the fibrous material from any seeds, husks, bran. sand, or other foreign matter, the separated fibrous material being afterwards passed through dressing-machines to cleanse it, while the seeds, husks, and bran are passed through a series of agitated sieves to separate any remaining fibres and render the material suitable for cattle food. The material is raised from a sump 2, Fig. 1, by a fan 5 to a centrifugal 8, whence it passes to a flocking-machine 10 fitted with rotary beaters 11. The machine may have twin beaters 11, Fig. 2, and interrupted projections 13 are arranged helically on the inside of the casing to direct the material towards the outlet 12. The flocks or fibres pass by a trunk 15 into a revolving dressing-machine 17, and the material that passes through the screen is again treated in a revolving cylindrical or hexagonal screen 22, the two grades nt flocks being delivered by spouts 18, 24 and the foreign matter at an outlet 26 The seeds &c. thrown out from the machine 10 fall through the perforated floor 14 and are directed by hoppers 27 to a shaker 28 with a perforated floor 28<a>, Fig. 3. The overtails pass down a trunk 29 and are returned to the sump 2, while the finer material passes through the sieve 28<a> to a magnetie separator consisting of a travelling band 30 passover a magnetic roller 31. The material passing freely over the roller 31 is directed by shoots 32 to two rotary shakers 35 fitted with upper and lower sieves 36<a>, 36<b>. The flocks, sticks, and larger pieces of seed, husk, or bran passing over the upper sieves 36<a> are delivered to a central rotary shaker 38, while the bran passing through the sieves 36<a> is delivered by spouts 39, and is suit. able for cattle food. Fine sand &c. falls through the lower sieves 36<b> and is delivered by trunks 40 to a receptacle 41 fitted with a discharge worm 42. Any flocks separated in the shaker 38 are delivered by a spout 44 and may be returned to the sump 2, while the bran &c. that passes through the sieve may be delivered by a worm 45 to be ground for cattle food. The flocking- machine may consist of a revolving perforated cylinder or cone without beaters, and, according to the Provisional Specification, the dressing- machines may consist of revolving perforated cones.
Patent GB-1507198-A (GB)
Title: Antihemophilic factor
IPC: A61K38/16
Filed: 1975-04-10
Abstract: 1507198 Antihemophilic factor E R SQUIBB & SONS INC 10 April 1975 [12 April 1974] 14817/75 Heading A5B [Also in Division C3]  A method for preparing a quick-dissolving lyophilized antihemophilic factor of human blood plasma which rapid dissolution of less than 5 minutes when reconstituted with sterile water for injection, comprises the steps of centrifuging human blood plasma at a temperature of about 0‹C to remove a cryoprecipitate, macerating the cryoprecipitate, suspending the macerated cryoprecipitate in citrate-dextrose buffer, centrifuging the suspension and discarding the precipitate to obtain a buffer extract, adjusting the pH of the buffer extract to from pH 6.0 to pH 6.8, if necessary, and cooling to a temperature of from 5‹C to 20‹C to precipitate an inert fibrous solid, removing the precipitate while maintaining the temperature of the extract at a temperature of from 5‹C to 15‹C, adjusting the pH of the extract to pH 7.1, and sterilizing and lyophilizing the extract.
Patent GB-552913-A (GB)
Title: Improvements in transportable heat-insulated containers for refrigerated products
IPC: F25D23/06
Filed: 1941-11-19
Abstract: 552,913. Heat-insulated containers. PAYNE, C. A. Nov. 19, 1941,. No. 14883. [Class 64 (ii)] A heat-insulated container, which may be in the form of a closed box or a vehicle body for transporting refrigerated products such as frozen meat or solid carbon dioxide, is provided with a covering of soft cellular rubber b to protect the insulation a from shocks. Preferably an outer corrugated steel casing c is added to protect the rubber. The heat insulation may be slabs of cork, balsa wood, or rigid cellular rubber. The rubber b and insulation a may be separated by corrugated or plain steel sheeting d, and the interior of the container may be similarly lined by steel sheeting e.
Patent GB-638636-A (GB)
Title: A yarn tension device for winding, beaming and other machines
IPC: B65H59/32
Filed: 1947-06-06
Abstract: 638,636. Tensioning yarn. GRIMSHAW, T. June 6, 1947, No. 14945. [Class 120 (ii)] A yarn-tensioning device for winding &c. machines comprises two rows K<SP>1</SP>, L<SP>1</SP>, of closed eyelets which are arranged in parallel formation and staggered in relation to one another, either or both rows being capable of movement towards and away from one another against the action of a length of elastic M, spring or weight which is capable of adjustment at N, N<SP>1</SP>, so that the yarn tensioning effect may be varied. The unwinding package A is mounted, in inclined fashion, on a peg B pointing towards a small passage D which is in line with the first eyelet of the row L<SP>1</SP>. The back end of the package A is " sealed" by a piece of fur G.
Patent GB-697795-A (GB)
Title: Improvements relating to magnetically operated control devices
Inventor: NEWBOULT HENRY GRATTAN
IPC: F16K31/34
Filed: 1950-06-15
Abstract: 697,795. Magnetic couplings. TRIST & CO., Ltd.,R. June 8, 1951 [June 15, 1950], No. 14986/50. Class 35. [Also in Group XXIX] A magnetically-operated device comprises a driving magnet, a driven magnet arranged to follow the first magnet from which it is separated by a partition and a valve member which is directly connected to the driven magnet and which controls the flow of fluid to a pressuresensitive member. A float 4 is linked with a driving magnet 5 and a vane 20 is connected to a driven magnet 6, the adjacent ends of the magnets 5, 6 being of opposite polarity. When the water level in a boiler is altered, the driving magnet 5 is moved by the float 4, and in turn the vane 20 is correspondingly rocked by the driven magnet 6. The vane 20 controls, openings 27, 28 of passages 25, 26 through which compressed air is conducted from an airsupply line 30. The compressed air, in turn, controls a piston-operated valve 1 in the boiler feed water pipe.
Patent GB-447949-A (GB)
Title: Method for the preparation of remedies for gonorrhoea and dental suppurating diseases more especially discharge of alveolar pus
IPC: A61K35/06
Filed: 1935-05-23
Abstract: Perilla aldehyde of 80 to 85 per cent purity is prepared from an oil distilled from Perilla nankinensis by distillation at ordinary pressure and below 200 DEG  C. so as to remove limonene and pinene leaving the aldehyde as a residue.ALSO:Remedies for gonorrhoea and for dental suppurating diseases are prepared by admixture of an extract of pyrethrum flowers containing a large proportion of pyrethrin, with perilla aldehyde obtained from oil distilled from Perilla nankinensis and with an organic solvent such as petroleum jelly, paraffin oil, olive oil, castor oil, acetone, alcohol or ether.  The pyrethrum extract is made with petroleum ether, is repeatedly cooled to -20 DEG  C. to deposit resinous impurities and is then concentrated and the solvent completely removed.  The oil distilled from Perilla nankinensis is distilled at ordinary pressure at a temperature below 200 DEG  C. to remove limonene and pinene leaving a residue containing 80 to 85 per cent of perilla aldehyde.
Patent GB-341825-A (GB)
IPC: H01B3/04
Filed: 1930-05-16
Abstract: 341,825. feeding mica flakes by vacuum holding devices. BORER, J., Breitenbach, near Basle, Switzerland. May 16, 1930, No. 15107. Convention date, May 20, 1929. [Class 117.] The invention consists in an apparatus for making mica sheets from small mica scales in which a sieve forming a movable conveyer surface passes in a horizontal path beneath a stationary suction device where it becomes covered with mica flakes, and over horizontal former plates moving in the same direction to a point beyond the suction device where the flakes drop from the sieve and are carried on the former plates to a place where adhesive is applied. The apparatus shown comprises a shaft 1, fed with mica flakes from a reservoir 2, and which is connected at the bottom with a fan blower 3 to keep the mica in suspension, and has at its upper end a suction chamber 4 open at the bottom. A flexible wire gauze 5 serving as a conveyer surface runs over rollers 6 and moves continuously in a closed circuit in the direction indicated by the arrow x, passing horizontally over the upper opening of the shaft and tightly under the suction chamber 4. The gauze becomes covered with mica flakes held on by suction until it passes the place 15 at the end of the suction chamber when the mica flakes fall on to former plates 8 under the conveyer moving in the same direction, hanging below and between chains 10, and being supported on two pins 9 projecting from the chains. The former plates 8 are thus prevented from fouling the chains, when the latter alter their direction of movement. Lacquer or other adhesive is applied by a spraying device 16. Waste mica which falls between successive former plates is caught in a trough 17, and surplus lacquer falls into a tray 18. The suction in chamber 4 is produced by two suction fan blowers 20. If desired a pair of pressure rollers may be provided after the adhesive spraying device.