baber/WOPTO huggingface dataset:
Patent GB-1413420-A (GB)
Title: Cameras
IPC: G03B17/42
Filed: 1973-03-27
Abstract: 1413420 Cameras AGFA-GEVAERT AG 27 March 1973 [27 March 1972] 14617/73 Heading G2A A member 5 can slide on a camera housing 1 between a closed position in which it covers some of the camera components and an open position in which the components are uncovered, movement between the two positions effecting film transport and/or shutter tensioning, the member being spring-urged into the open position. Fig. 1 shows the member 5 in the open position, into which it is urged by a spring 7, in which the view-finder lenses 2 and 3 and the objective lens 4 are uncovered. (These are covered when member 5 is pushed in the direction of arrow 6 into the closed position, which movement tensions the shutter and/or transports the film, after which member 5 is returned to the open position by spring 7.) A push button 9 is mounted on a leafspring 11 which can slide in a pocket 10 of the housing 1. The other end of spring 11 abuts against a projection 1a on the housing, so that an angled arm 11b of spring 11 is tilted, as shown in Fig. 2. In this position an oblique surface 11c at the lower end of arm 11b is out of the path of movement of a hook 12b at the end of a spring 12 fixed to the member 5. Thus member 5 can be pushed into the closed position and back again freely to operate the photographic cycle. If it is desired to retain the member 5 in the closed position, button 9 is pushed to the right. This brings spring 11 clear of projection 1a, so that spring arm 11b moves upwards, and consequently the next time member 5 is pushed inwards, hook 12b engages and locks with oblique surface 11c. Thus member 5 is now locked closed. To release and open member 5 again, button 9 is pressed down and slid to the right. A different form of latching arrangement can be seen in Fig. 3 (not shown).
Patent GB-380806-A (GB)
Title: Improvements in or relating to an agricultural tractor
IPC: B62D49/00
Filed: 1931-05-18
Abstract: 380,806. Internal-combustion engine tractors. CASSANI, F., Castelmaggiore, Italy. May 18, 1931, No. 14644. [Classes 79 (i), 79 (iii), and 79 (iv).] An agricultural tractor comprises in combination, (a) a horizontal two-cylinder heavy oil engine, the cylinder monoblock being arranged under the radiator and forming part of the frame, (b) a circulating system in which the cooling water descends from the radiator and flows along the whole cylinder surface in a direction from the rear towards the front of the monoblock, the heated water issuing from the cylinder head being received in a collector, which is not in direct contact with the cylinder walls, and being then conveyed into the radiator, and (c) a compressed air reservoir for starting the engine arranged over the engine side by side with the fuel tank. In the construction shown the cylinder block 1 and the change-speed and differential casing 9 form the frame of the tractor, the cylinder block being provided with a fork 31, Fig. 1, in which the front axle 30 is secured. A friction clutch 23 is provided at one end of the engine shaft and eccentrics 25 for actuating the fuel pumps at the other end. The engine shaft 11 drives the rear wheels through spur gearing 13, 12, the change-speed and reversing gearing shown, gearing 19, 20 and differential gear 10. A pulley 33 is provided for driving external machines. The cylinder block is formed with a triangular longitudinal rib 11b, Fig. 7, to strengthen the frame. The cooled water from the radiator 3 enters the cylinder block through an opening 3b, Figs. 5 and 7, and passes into a collector 4b, from which it is drawn by a pump (not shown) and delivered through an opening 6b at the rear of the cylinders to the jackets. The water passes forward through the jackets and through openings 7b to the cylinder heads, returning through openings 8b to a collector 9b which is not in direct contact with the cylinder walls and from which it passes through a tubular block 50 to the radiator. The fan 51 is carried by the block 50. The cylinders have independent heads 2 formed with combustion chambers 5a of partly-spherical shape. The oil is sprayed by means of nozzles 26 into barrelshaped chambers 2a. The engine is of the two-stroke-cycle type, air being drawn into the crank-case through automatic valves. Compressed air for starting purposes is supplied to a reservoir (not shown) by means of valves 28 in the cylinder heads. At starting plugs 7 are used, inserted into openings 4a in the cylinder head. A hand pump 29 is provided for refilling the air reservoir if the pressure therein is not sufficient for starting.
Patent GB-550120-A (GB)
Title: Improvements in or relating to methods of manufacturing flat coils
IPC: B21C47/00
Filed: 1941-11-14
Abstract: 550,120. Winding flat coils. FERRANTI, Ltd., and SEDDON, J. Nov. 14., 1941, No. 14663. [Class 120 (ii)] In winding coils of wire which are not self-supporting, the coil is maintained after winding, and prior to a supporting member being fixed thereto, by reducing the air pressure on one side of the coil and causing the air pressure on the other side to hold each turn of the coil in contact with a perforated plate. The coil may be wound on a former consisting of a shaft carrying a disc having radial slots and a shoulder on which the first turn is laid, a second and transparent disc being held on the shaft against the shoulder by a screwed nut. The two discs are spaced apart a distance slightly greater than the diameter of the wire and the second disc has a series of radial grooves on the side facing the first disc and a series of holes. After winding the shaft of the former is inserted in a tube which is closed by the first disc and which is connected to a vacuum pump so that the coil is held against the disc by air pressure; the transparent disc is then removed and an adhesively-coated washer pressed against the coil, the former being subsequently removed from the tube and the coil on its supporting washer allowed to dry under pressure. The exhaust system may be connected to the bearings in which the former is rotated during winding. The winding machine may be fitted with indexing means for the various winding and subsequent operations.
Patent GB-1332775-A (GB)
Title: Method of forming region of a desired conductivity type in the surface of a semiconductor body
IPC: H01L21/225
Filed: 1972-03-29
Abstract: 1332775 Semi-conductor processes RCA CORPORATION 29 March 1972 [7 April 1971] 14697/72 Heading H1K A region 16 of a desired conductivity type is formed in the surface of a single crystal semiconductor body 10 by diffusion of a dopant from a layer 14 of a single crystal material the crystalline lattice of which matches that of the material of the body 10. At least part of the layer 14 is subsequently removed using an etchant which selectively attacks the material of the layer 14, leaving the body 10 substantially unetched. The layer 14 is preferably deposited on the body 10 by liquid phase epitaxy. The body 10 may be of GaAs (e.g. containing Si as a dopant) or Al x Ga 1-x As (x less than 0À4), in which case the layer 14 may be of Al x Ga 1-x As (x greater than 0À4) doped with Zn, Ge, Cd, Te, S or Sn. Boiling HCl preferentially etches the lastnamed material. A part of the layer 14 may be retained to serve as an ohmic contact to the region 16. Diffusion of the region 16 may take place during or after deposition of the layer 14. The matching of the crystalline lattices is stated to reduce the surface damage produced in GaAs or AlGaAs during conventional gaseous diffusion processes.
Patent GB-205449-A (GB)
Title: Improvements in photometers
IPC: G01J1/12
Filed: 1923-06-05
Abstract: 205,449. General Electric Co., Ltd., and Gardiner, H. W. B. June 5, 1923. Photometric apparatus for testing electric lamps is constructed so that the watts consumed in the lamp under test and the ratio of its candle power to the illumination which it produces at the photometer head are varied concurrently in such a manner that the watts consumed are proportional to this ratio, a photometric balance with the standard illumination only being obtained when the lamp under test is running at the prescribed efficiency. The lamp 2 to be tested is placed in a photometric cube or sphere 3 having a window partially closed by a sliding shutter 5 provided with a V-shaped opening, the area of the opening thus being proportional to the travel of the slide. The photometer head 6 is illuminated by a standard lamp 7 similarly enclosed. The watts consumed by the lamp 2 are varied by a rheostat 11 in series with the lamp, the position of the sliding contact 12 being connected with the shutter 5, the resistance being thus proportioned to the travel of the shutter 5. Mathematical proof is given that when the voltage in series with the test lamp and rheostat is approximately double that of the test lamp the lamp is at the prescribed efficiency when a photometric balance is obtained. Alternatively, the shutter 10 of the standard lamp 7 may be connected with the rheostat 11 so that the area of the window exposed is inversely proportional to the rheostat resistance.
Patent GB-404971-A (GB)
Title: Improvements in smokers' petrol lighters
IPC: F23Q2/06
Filed: 1932-05-24
Abstract: 404,971. Pocket igniters. WISE, F. C. GREENWOOD, W., and GENDERS, F. C., 5, Johnson Street, Notting Hill Gate, London. May 24, 1932, No. 14754. [Classes 75 (i) and 75 (iii).] In a petrol igniter in which the wick c is adjusted by means of a spur wheel e operated by a spindle g and a handwheel h, the spur wheel is mutilated to form a flat face t adapted, when turned towards the wick to widen the passage for the latter and thereby facilitate its introduction. A cage for keeping the cotton-wool filling clear of the wick-tube d comprises a U-shaped metal strip u having a large aperture v in alignment with the wick-tube for the passage of the wick. The lighter comprises in addition a windscreen i secured by a hook l and screw fastening k and carrying the friction wheel m, and also a two-position cover p adapted when down to fit over the windscreen and friction wheel and cover the wick ; these features however form no part of the invention.
Patent GB-344290-A (GB)
Title: Improvements in or relating to acoustic diaphragms
IPC: H04R1/24
Filed: 1930-05-14
Abstract: 344,290. Diaphragms. LUMIERE, L., 156, Boulevard Bineau, Neuilly-sur-Seine, France. May 14, 1930, No. 14837. Con. vention date, June 4, 1929. [Class 40 (iv).] A pleated acoustic diaphragm of square or rectangular outline is formed from two cut-out portions of an annulus a, Fig. 1, of drawing paper, trapezium, shaped surfaces being initially marked out on the annulus which is then folded in a zig-zag manner. Each cut-out portion is then developed into the rectangular form shown in Fig. 2 by laying out the inner circumference thereof on a straight line, the opposite edge assuming the shape shown in Fig. 4. The two portions are then secured together along these deeper edges as shown in Figs. 5 and 6 by a rigid bar b of aluminium, wood, &c., the actuating rod being secured to this bar at its centre or at any other suitable point. The edges of the diaphragm are gripped at suitable points between cork or felt washers d mounted in a wooden &c. frame c.
Patent GB-552817-A (GB)
Title: Improvements in retractable mountings for aircraft landing elements
IPC: B64C25/12
Filed: 1941-11-19
Abstract: 552,817. Aircraft undercarriages. DOWTY, G. H. Nov. 19, 1941, No. 14903. [Class 4] An aircraft landing element mounting comprises a non-yieldable leg part mounted to swing about a retraction pivot and a leg part connected to the non- yieldable leg part by spaced links so as to be yieldable under landing loads against the resistance of a telescopic shock-absorber which is connected to one of the links and is anchored at a point which is spaced from the retraction pivot whereby the overall length of the leg is decreased or increased when the leg is swung into the retraction position. As shown a non-yielding leg-post 4 which swings laterally on a fixed pivot 5 for retraction has connected to it by links 8, 9 a leg-post 6 which carried the wheel, a shock-absorber 10 being connected to the link 9 and being anchored through a link 14 to a fixed pivot 12 which is spaced from the pivot 5. The part 6 can thus yield against the resistance of the shock-absorber under landing loads as indicated by the broken lines. Further due to the spacing of the pivot 12 the shock-absorber 10 slides in the leg-post 4 towards the pivot 5, when the leg is swung about the pivot 5 for retraction whereby the overall length of the leg is reduced. If, instead, it is desired that the length of the leg is reduced when in the extended position, the pivot 12 is so arranged as to be out of alignment with the axis of the shock-absorber when the leg is in the extended position. The arrangement may also be such that the pivot 5 may be turned about its axis when the leg is in the extended position shown so as to move the pivot 12 and thus to lower the aircraft. Specifications 526,116 and 527,110 are referred to.
Patent GB-202960-A (GB)
Title: Improved apparatus for indicating changes in the direction of travel of vehicles
IPC: B60Q1/34
Filed: 1923-06-07
Abstract: 202,960. Eyquem, M. Aug. 22, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Look-out reflectors. - A combined rear-view mirror and direction indicator for vehicles comprises a panel 1 hinged to a plate 6 and bearing on its front face a mirror 2 and on its back face a painted hand &c. The panel 1 is operated, to exhibit its back face, by a hand lever 11 and cable 8, the cable passing round a pulley 7 carried by the hinge 5 of the panel. A spring 12, connected between the cable 8 and the plate 6, returns the panel into its initial position after operation. The spring and cable pass through tubular guides on the lower edge of the plate 6. Buffers are provided on the plate 6 for receiving the impact of the panel 1. There may be a spring lock for preventing rattling of the panel.
Patent GB-397507-A (GB)
Title: Improved means for maintaining a supply of lubricating oil to internal combustion and other engines
IPC: F16N19/00
Filed: 1932-02-22
Abstract: 397,507. Controlling flow of lubricant. FIELDING, W. R., Manor House, Manor Road, Fleetwood, Lancashire. Feb. 22, 1932, No. 15022/31. [Class 12 (iii).] An apparatus for maintaining a supply of lubricating- oil to the crank-case of an engine comprises a reservoir R and a pipe Q fitted with a valve V which is opened by an electromagnet E, and closed by means of a float F actuated bv the rising oil level within the crank-case. A tap T or other form of hand-operated valve may also be provided in the pipe O. Specification 143,454, [Class 12 (iii), Lubricators &c.], is referred to.
Patent GB-562177-A (GB)
Title: Improvements in or relating to toggles, particularly applicable to electric switches
IPC: H01H71/50
Filed: 1942-10-27
Abstract: 562,177. Toggles. LANDIS & GYR SOC. ANON. Oct. 27, 1942, No. 15053. Convention date, Nov. 8, 1941. [Class 80 (iii)] [Also in Group XXXVII] Consists in a toggle in which the bending element is a helical spring. The spring 1, Fig. 2, has eyes 2 at its ends for connection to the points of application of the forces P to be released and when straight, the coils of the spring touch one another thus enabling a heavy pressure to be withstood. In place of the eyes 2, bearing pieces 3, Fig. 3, screwed into the coils of the spring may be provided, the pivot holes 4 in these pieces being either in line with the axis of the spring or off-set therefrom preferably in the direction from which the releasing force F acts. This force may act upon an extension 7, Fig. 5, of the upper bearing piece. Spherical bearing pieces 8, Fig. 6, permit a plurality of forces F, F<1> &c. to act on the spring and this is particularly advantageous in circuit breakers for house wiring where, in addition to a thermal overload release, there is a short-circuit or hand release. In a further modification, the bearing pieces have conical recesses to receive conical centres on the ends of the spring. As applied to a switch, Fig. 9, each bearing piece 3 of the toggle spring 1 has a lateral extension 7. A plate 12 having sliding connection with the upper piece 3 carries a push-button 13. The release force F can be applied by an auxiliary spring-loaded press button on a stem 15 adapted to act on the upper extension 7. The movable contact 17 is mounted on spring 16, the fixed contact being at 18. An armature 19 of an electromagnet 20 is in operative relationship with the lower extension 7. A lever 23 maintained by a weight 25 against a stop 26 carries a latch 22 adapted to enter at slot 21 in the plate 12. When the switch is closed, the button 13 is pressed in and held by latch 22. If the auxiliary button be now pressed, the toggle is broken, the contacts 17, 18 opened suddenly and the latch released. The toggle may be broken by the armature 19.
Patent GB-379670-A (GB)
Title: Roller blind
IPC: E06B9/17
Filed: 1931-05-23
Abstract: 379,670. Window blinds. SOC. ANON. FABBRICHE FORMENTI, Carate Brianza, near Milan, and PASSONI, D., 42, Foro Bonaparte, Milan, Italy. May 23, 1931, No. 15305. [Class 52 (v).] A slat for window blinds or shutters consists of a metal strip of substantially C-shape in section having a flat seating 1<1> at its upper side and an inclined front 3 which extends below a lower flat seating 1. In the construction shown in Fig. 1 the slat is provided with a back wall 41 consisting of a metal sheet with bent-over edges to engage correspondingly formed edges of the slat. The back wall 41 may be coated with heat insulating material such as varnish or the joints may be packed with rubber or other insulating material. In the modification the back wall is made of wood, &c. The slats are pivotally connected together to form the blind by wire members 14, which pass through apertures in the slats and are hooked together, the upper hook of each member being bent outwardly at 16 to support the slat.
Patent GB-819141-A (GB)
Title: Fuel reignition devices for use in combustion chambers of propulsion engines of the continuous internal combustion type
Inventor: ORCHARD PETER FREDERICK
IPC: F02C7/262
Filed: 1956-05-16
Abstract: 819,141. Tungsten alloy. BRISTOL AEROENGINES Ltd. May 6, 1957 [May 16, 1956], No. 15325/56. Class 82(1) [Also in Group XI] A re-ignition device for a continuous combustion internal combustion engine consists of a body of refractory material supported by a mounting so that it is immersed in the zone of primary combustion. According to the Provisional Specification, the refractory member may consist of a tungsten alloy containing 7.5 per cent of nickel and 2.5 per cent of copper with a protective platinum sheath. Specification 578,956 is referred to.
Patent GB-718510-A (GB)
Title: Improvements in or relating to circular looms
Inventor: LOW ROBERT NORRIE
IPC: D03D37/00
Filed: 1951-06-29
Abstract: 718,510. Circular looms. FAIRWEST (U.K.), Ltd. June 18, 1952 [June 29, 1951], No. 15429/51. Class 142(2) In a circular loom in which the healds are moved by rotary cams 3 through levers 1 pivoted at 2 and rods 4a, auxiliary cams 9 on a shaft 4 move the healds to one of their extreme positions to uncover the shuttles. Another cam on the shaft 4 operates a switch in a circuit controlling the stoppage of the loom. The shaft 4 is driven through clutch parts 11, 12; the part 12 being continuously driven by a gear 17 on a driving shaft 15. When an electromagnet 23 is de-energized by the operation of a weft stop-motion, or of a hand switch, a spring 19 moves a fork 18 and the parts 11, 12 engage. The number of teeth on the parts 11, 12 is such that the shaft 4 begins to rotate only when the main cams 3 reach predetermined positions. To ensure that the clutch parts disengage only when the cams 3 are in such positions that the correct shedding sequence is maintained, a bar 25 carrying rollers 26, 27 permits separation of the clutch only when the roller 27 can engage a recess 28a in the part 12. The take-up motion is disconnected by a cam on the shaft 4, the cam opening a clutch. The take-up motion is reversed by a cord 50 which, when pulled, causes a screw 48, engaging a groove 49, to bring a member 47 into engagement with, and rotate, a part 44 on the driving shaft 31 of the take-up motion.
Patent GB-1076949-A (GB)
Title: Hanger plate combined with a resilient buffer for sliding doors
IPC: E05D15/06
Filed: 1966-04-06
Abstract: 1,076,949. Hanger plates; door stops. ELLARD SLIDING DOOR GEARS Ltd. and W. G. ELLARD. April 6, 1966, No. 15461/66. Headings E1J and E2X. A hanger plate 2 for a sliding door 3 is made of tough resilient plastics such as nylon and secured to the upper edge of the door 3 and has formed integrally therewith an upwardly projecting tongue 7 which abutts against a fixed door stop 8 to limit the movement of the door. The tongue 7 is tapered in thickness towards the end and is arranged so that area of engagement with the stop moves progressively towards the base of the tongue as this latter bends. The plate may have a metal insert for the suspension bolt 5, embedded in the plate 2.
Patent GB-831678-A (GB)
Title: Means for the manipulation of ventriloquists' dolls
IPC: A63H3/14
Filed: 1958-05-14
Abstract: 831,678. Ventriloquist's apparatus. REDDING, A. F. C. May 14, 1958 [May 21, 1957], No. 15462/58. Classes 132(1) and 132(3) The head and mouth movements of a ventriloquist's doll are controlled by pedal mechanism on a base which also supports the doll, a main pedal 1, pivoted at 8, being connected by links 7 to a rotatable pole 5 for turning the head and another hinged member 2, carried by the pedal 1, having a cord connection 12 for operating the doll's mouth. Alternatively, teeth on the forward end of the main pedal may rotate the head pole 5 by gearing, or there may be a slotted cam arrangement, or string or wire may be wrapped around the head pole and attached at each side of the main pedal.
Patent GB-397444-A (GB)
Title: Improved apparatus for drawing glass tubes and the like containing a stripe of contrasting glass
IPC: C03B15/16
Filed: 1933-05-29
Abstract: 397,444. Glass manufacture. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Said, W. H. ; 55, West Erie Avenue, Corning, New York, U.S.A.) May 29,1933, No. 15479. Convention date, July 22, 1932. Addition to 354,509. [Class 56.] Relates to the apparatus described in the parent Specification for making glass tube having a stripe of contrasting colour embedded therein. According to the present invention, the device for shaping the tube consists of a drawing-pot having in its interior an upwardly extending nozzle which is connected with the receptacle that contains the contrasting glass. The furnace comprises a casing 12, heated by suitable burners, within which is a container 19, for the molten glass, resting on blocks 18. The end wall of the container 19 has an opening 21 which communicates with a receptacle 22 for the contrasting glass. A drawing-pot 25 is formed with a port 28 through which the glass flows from the container. A boss formed in the wall of the drawing-pot, opposite the port 28, is provided with an inwardly-projecting nipple 32, and a passage 30 extends through the boss and the nipple. The drawing-pot rests on blocks in the container 19 with the passage 30 forming a continuation of the opening 21. In use, a tube is drawn from molten glass in the container 19, the bore being formed by blowing air through a pipe 34, which passes through openings in the furnace, the container 19, and the drawing-pot. The contrasting glass flows from the receptacle 22 through the passage 30 and forms a coloured stripe in the glass tubing. The drawing-pot regulates the shape of the glass tubing, and it may be replaced readily by another of different shape. Specification 391,060 is referred to.