baber/WOPTO huggingface dataset:
Patent GB-406507-A (GB)
Title: Improvements in or relating to the manufacture of photo-electric cells
IPC: H01J40/06
Filed: 1933-04-25
Abstract: 406,507. Photo-electric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. April 25, 1933, No. 12090. Convention date, July 26, 1932. Addition to 343,930. [Class 39 (i).] In a method of making a photo - electric cell having an electrode provided with a layer containing particles of a chemical compound and a photo-electric material, excess of photo-electric material is removed after the layer has been formed by means of a getter which is completely isolated from any vapours in the cell and can only combine with the excess material after the dest uction of the barrier between the getter and the space in which the layer is formed, or the getter is introduced in such a compact form that it can only combine with the excess after, as a result of heating, it has been spread over a large surface, preferably by being evaporated. The getter, which may be lead, tin, copper oxide or lead oxide may be contained in (a) a closed glass bulb provided with a breakable pip, the wall of the bulb being destroyed after the photo-electric layer has been formed or (b) a closed metal container 12, which is opened by heating it, preferably by induced currents or (c) the getter may be a compact body, such as a rod, which is heated by a coil so that the getter is evaporated and deposited on the space surrounding the stem 2. Screens 13 may be provided to prevent the getter from passing into the space containing the photo-electric electrode, and to prevent deposition on the stem. The photo-electric electrode consists of a layer 3 of silver covered by a layer 4 of a mixture of particles of silver, caesium, and caesium oxide with a thin adsorbed layer 5 of caesium, formed by the method described in Specification 373,867. Penetration of caesium into the mixture may be accelerated by heating the cell to about 100‹ C. for an hour.
Patent GB-477809-A (GB)
Title: Improvements in or relating to alarm clocks
IPC: G04B23/03
Filed: 1937-04-28
Abstract: 477,809. Alarm clocks. JUNGHANS AKT.-GES., GEB. April 28, 1937, Nos. 12130 and 12131. Convention dates, May 2 1936 and July 10, 1936. [Class 139] In an alarm clock having a manually-operated alarm - stopping device which can be brought into interlocking engagement with the clock-operated locking means, operation of the stopping device causes the alarm operating mechanism to be moved back against the resistance of the alarm spring until the stopping device interlocks with the locking means, the requisite pressure for maintaining the interlocking connection being derived from the alarm escapement wheel. The hammer shaft g, Fig. 1, is furnished, in addition to the usual locking arm g<4>, with an arm i adapted to be engaged by a lug a<2> on a spring- pressed arm a which, when pressed down by the stopping button b, rotates the escapement in opposition to the alarm spring, a shoulder a<1> on the arm a subsequently engaging a tooth on the escapement wheel and being frictionally held by the force of the spring. Alternatively, a pawl g<1>, Fig. 6, is fixed to the hammer shaft and the escapement rotated when the arm a<1> is pressed upon the bevelled surface g<2>, subsequently to be held in the recess g<3>. Means may be provided, comprising an arm g<2>, Fig. 12, to cause the alarm to be stopped by the unwinding alarm spring, the convolutions of which will bear against the arm g<2>. In a further arrangement, Fig. 9, the usual locking arm g<4> is extended to within reach of an undercut conical point b<2> on the stopping button stem b<1> and is bent off transversely to the axis thereof. Consequently the button b, on being depressed, rotates the shaft g slightly, and is held in interlocking engagement with the bent portion g<5> of the locking arm by the pressure thereof on the upper conical part b<2> of the stopping button stem.
Patent GB-373740-A (GB)
Title: Improvements in valve mechanism for internal combustion engines
IPC: F01L7/10
Filed: 1931-04-24
Abstract: 373,740. Valves. MœLLENER, W., R³ti Zurich. Switzerland. April 24, 1931, No. 12203. [Class 7 (vi).] A rotary concave valve 9 controlling inlet and exhaust is driven by a toothed wheel 16 keyed to the spindle 14 and surrounded by a two-part casing 15, which is adjustably screwed on the spindle bearing 12 so as to vary the compression of a spring 18 bearing against the toothed wheel through a ball bearing 17. The casing 15 is arranged at a distance above the cylinder cover to prevent transference of heat therefrom. A second ball bearing 24 is arranged above the toothed wheel. The valve is formed with a cavity opposite the port opening for balancing the rotating mass, this cavity also serving for lubrication. The valve mechanism may be arranged at an angle to the cylinder, instead of axially.
Patent GB-437203-A (GB)
Title: Improvements in or relating to the stiffening of boot or shoe parts
IPC: A43B23/08
Filed: 1934-04-24
Abstract: 437,203. Shoe stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., BENNION, L. H., and LUND, W. J., Belgrave Road, Leicester. April 24, 1934, No. 12269. [Classes 17 (i) and 17 (ii)] A blank of fibre board, or other board made by deposition of fibrous pulp from aqueous emulsion, for a shoe heel end stiffener is skived and is then compressed at the unskived portion before or simultaneously with the operation of moulding the blank to the desired shape, in order to remove marginal harshness from the stiffener. The stiffener may be formed from light rolled fibre board, i.e. fibre board which has not been subjected to such a high degree of pressure in the final stages of its manufacture as is usual for board for making good class counter stiffeners, and blanks cut therefrom are, after skiving, subjected at the mid-body portions to intense pressure between calendering rolls, which may be heated. The blanks may be subsequently moulded to shape. Alternatively, an extra condensing action may be performed in the moulding machine upon the mid-portions of blanks which have been out from light rolled board and skived, in which case a plurality of moulds which remain closed for a definite period conveniently moving in a circular path about a turret from, and returning to, a loading station, may be employed.
Patent GB-1096071-A (GB)
Title: Ladder safety device
IPC: E06C7/50
Filed: 1964-03-24
Abstract: A safety device for ladders comprises a rectangular frame having hooks to engage the rungs and a central vertical tube connected at the top to a clamp having two oppositely movable clamping arms operated by bevel gear for engagement with a part of a building.
Patent GB-686260-A (GB)
Title: Improvements relating to rotary cutting tools for example grinding wheels
IPC: B24D7/10
Filed: 1950-05-17
Abstract: 686,260. Grinding wheels. DAVIES, W. E., HOPWELL, E. E., and ROBINSON, H. D. Aug. 13, 1951 [May 17, 1950], No. 12330/50. Class 60. [Also in Groups XXII and XXVI] A rotary tool comprises an annular body provided with peripheral recesses for spaced abradent stones or cutters and connected to a central hub by spokes which serve as fan blades to cause a cooling flow of air on to the work. A frusto-conical body 6 has recesses 16 each receiving a grinding stone 14 and a securing block 15 and is connected to a central hub 7, with a liner 8, by six spokes 9. Each spoke is flat faced and tapers towards its hub end 12; each spoke has at its outer end a portion 13 projecting below the lower end 11 of the body 6 and forming the main draught-inducing means. In a modification, Fig. 4, the three blades 20 are swept back in relation to the plane of rotation of the wheel; each blade has its main face disposed obliquely to the axial planes of the complete wheel unit passing through the spokes 21, 22 respectively representing the upper and lower edges of the blade. The medial lines of the blades are tangential to the axis of the hub 7. The blades may be detachable or may be angularly adjustable about axes which may themselves be adjustable. The fan housing may be closed at the end remote from the work either completely or with the exception of small openings; the housing may incorporate means for directing the airflow from the fan such as a hood or baffle surfaces, and these may be adjustable.
Patent GB-1163478-A (GB)
Title: Hydrocarbon Separation
IPC: C07C7/08
Filed: 1967-03-16
Abstract: 1,163,478. Extractive distillation. MONSANTO CO. 16 March, 1967 [16 March, 1966], No. 12343/67. Heading C5E. Mixtures of hydrocarbons of varying degrees of unsaturation are separated by extractive distillation using a solvent comprising an alkoxynitrile, a fraction richer in less unsaturated components than the starting mixture being removed overhead, and a fraction richer in more unsaturated components being subsequently recovered from the solvent phase. The solvent may contain 1-25% water. Typical separations are of butadiene from other C 4  hydrocarbons, propylene from propadiene, and hexenes from hexadienes.
Patent GB-596288-A (GB)
Title: Improvements in or relating to apparatus for launching projectiles of the self-propelled or rocket type
IPC: F41A9/07
Filed: 1944-06-29
Abstract: 596,288. Rocket-launching guns. HYDRAN PRODUCTS, Ltd., and MOTLEY, L. June 29, 1944, No. 12408. [Class 92 (ii)] Rockets 1 are continuously fed on a belt 2, Figs. 1, 3, or endless band 24, Fig. 4, to a firing position against stops 8 in line with a launching tube 3, the rockets being automatically fired direct from the belt or band on reaching this position. In the form shown, in Figs. 1, 3, the belt is of the desintegrating link type and is fed by pawls 11 on a reciprocating slide 10, the usual retaining pawls 12 being provided. Firing is effected by a member 23 geared to a rack rod 21 on the slide 10. A gap 9 between the stops 8 permits of link evacuation. In a modification, Fig. 4, the rockets are fed to clips 24a on an endless belt 24, which passes over pulleys 25 driven by a prime mover adapted to stall when the rockets engage the stops 8. Firing is effected by a biassed rod 29, controlled by the retaining pawl 12, which engages a rocket as it reaches the firing position. Specification 588,920 is referred to.
Patent GB-782885-A (GB)
Title: Improvements in or relating to an infant's feeding bottle and stopper therefor
IPC: A61J11/00
Filed: 1955-04-23
Abstract: 782,885. Feeding-bottles. KRISTOFFERSEN, A. April 23, 1956 [April 23, 1955], No. 12434/56. Class 66. A stopper for an infant's feeding bottle 2 has a spoon shaped portion 4, a liquid channel 5 connecting the spoon shaped portion with the inside of the bottle, and an air vent channel 6. The stopper may be of hard rubber or of a synthetic plastic material.
Patent GB-983260-A (GB)
Title: Improvements in the combination of co-operating frame bar and bead sections
IPC: E06B3/08
Filed: 1962-03-31
Abstract: 983,260. Glazing. H. J. ROWAN, and E. D. ROWAN. March 21, 1963 [March 31, 1962], No. 12489/62. Heading E1R. In curtain-walling, partitioning, doors or ceilings glass or other panels 42, Fig. 4, are positioned in a frame 27 by aluminium &c. glazing strips 40 snapping over headed ribs 31-34. The strip section 40 abutting the frame section only at regions located laterally to each side of the pair of lips 41. In a modification, the ribs are on the glazing strips. The frame member may comprise two channelshaped elements 28, 29 with tongue and groove engagements 35, 36, and may be connected together by self-tapping screws engaging internal ribs 45. In a modification, Fig. 1, the frame member 10 is in one piece with internal webs 17 replacing the ribs 45.
Patent GB-559002-A (GB)
Title: Improvements relating to the links of ammunition belts for automatic guns
IPC: F42B39/08
Filed: 1942-09-07
Abstract: 559,002. Ammunition belts; metal articles. PERRY & CO., Ltd., and ARCHER, E. Sept. 7, 1942, No. 12571. [Class 92 (ii)] [Also in Group XXII] Relates to metal-link disintegrating ammunition belts for machine guns in which the cartridges form the hinge pins and of the kind in which each link has three open-ended sleeves, one 3 being opposite a gap separating the other two 1, 2 and the sleeves being provided with flanges such as la, 1b for securing their meeting edges. According to . the invention, the flanges of the sleeves are in alignment and are secured together and reinforced by a separate strip 6 attached as by rivets 7. Each link is formed from a metal blank with a leg on one side and forked legs on the other side, the blanks being stamped from a strip as shown in Fig. 6 to economise metal, the crosshatched portions of the figure showing the metal discarded. The sleeves 1, 2 are provided with outside projections 8 for feeding the belt and inside projections 17 for gripping the cartridges.
Patent GB-1494784-A (GB)
Title: Telecommunications systems
IPC: H04Q3/00
Filed: 1975-03-26
Abstract: 1494784 Automatic exchange systems SIEMENS AG 26 March 1975 [28 March 1974] 12586/75 Heading H4K In a multi exchange system comprising a network of first exchanges, some subscribers are permanently assigned to respective ones of the first exchanges either directly or via one of a number of second, low order, exchanges whereas other subscribers are assigned to said first exchanges and can change their assignments in the system. The system is characterized in that for a call to a subscriber permanently assigned to a first exchange, the first exchange to which the caller is assigned can determine the identity of the first exchange to which the called subscriber is assigned from the subscriber number thereof and if there exists a free direct path between the two first exchanges a path is directly set up to the called subscriber. However, if no free direct path is available or no direct paths exist between the two first exchanges in question, a known target hunting process is used to find and establish a path, such a target hunting process being used in all cases where the called subscriber is freely assigned to a first exchange. Details of the known target hunting process are given. It is however mentioned that some interexchange links may be excluded from carrying target hunting messages but that such links may be used for the path finally switched through.
Patent GB-250776-A (GB)
Title: Improvements relating to hand guards for presses and like machines
IPC: F16P3/04
Filed: 1925-05-14
Abstract: 250,776. Taylor & Challen, Ltd., and Challen, W. B. May 14, 1925. Guards, controlling. - In press and like.guards of the type adapted to be intermittently swung g across the face of the machine by a lever actuated by a cam, crank, &e., the lever is in two parts arranged on a common pivot and connected by a rubber or other cushion or cushions to avoid fracture of the mechanism under shock: The guard-carrying arm a is actuated by a rod c and bell-crank lever b, which carries slidably in lugs f, bolts e formed with or secured to a yoke d embracing the arm d. Motion is transmitted from the lever b through rubber cushions g or springs held on the bolts e by nuts h.
Patent GB-1094313-A (GB)
Title: Method of making phosphors
IPC: C09K11/77
Filed: 1966-03-22
Abstract: A terbium-activated alkaline-earth silicate phosphor is prepared using a boric acid flux which ensures both freedom of coloring caused by the presence of unreacted terbium and a green emission at about 5450<\>rA under 2537<\>rA and 3650<\>rA excitation. The host may be calcium meta silicate, calcium ortho silicate, barium silicate or strontium silicate, or a mixed Sr-Ba or Ca-Sr silicate and the boric acids introduced into the mix at a mole concentration of 2 to 6%, preferably 3 to 4%.  The calcium meta silicate is retained in the beta phase, despite firing at 1150-1200 DEG  C. for 2 to 4 hours by the addition of magnesium, e.g. 0.77 CaO. 0.2 MgO. SiO2: 0.03 Tb and in the case of barium silicate, the BaO.2SiO2:0.03 Tb.0.04 B composition is preferred.  The terbium concentration is preferably 0.005 to 0.06 g. atom per g. atom of the alkaline earth metals, the optimum range being 0.01 to 0.04.  Six sets of examples indicate suitable starting materials such as calcium-, strontium-, barium - carbonates, magnesium oxide, silicon dioxide and their relative proportions.
Patent GB-149781-A (GB)
Title: Improvements in machines for bevelling glass
IPC: B24B9/10
Filed: 1919-05-20
Abstract: 149,781. Kirby, A. May 20, 1919. Bevelling.-Glass sheets 2 are mounted in a travelling rectangular frame 1. the interior of one side of which forms a face-plate 3 which supports and alines the sheets, the exterior of the opposite side 4 forming a straight edge adapted to run on guide wheels 5; this side of the frame also carries a number of clamps 9 mounted in slots 7. The clamps and the face-plate may be covered with felt or rubber to protect the glass; grinding- wheels 10 are provided, capable of being automatically fed. In a modification, a grinding-roller is used, and the edge of the side 4 of the frame forms the straight edge,
Patent GB-231038-A (GB)
Title: Improvements in or relating to agricultural tractors
IPC: B60B35/10
Filed: 1924-05-23
Abstract: 231,038. Wheatley, D. Y. May 23, 1924. Hubs. - Agricultural tractors of the type in which the dished wheel hub has a split tapered sleeve splined to engage the axle, and bolts to connect the hub and sleeve and press the splines into engagement to give the drive, are adapted for use in narrow spaces between rows of hop plants, fruit trees or the like, by attaching the wheels tq the axle in reversed, positions in relation to the body of the tractor. Fig. L shows the hub b attached by bolts d to a flange e of the splined split sleeve f fitting on the axle a. Fig. 2 shows the hub b in reversed position, fitting over a short tapered split sleeve 2, the boss g, Fig. 1, of the hub being cut off and the hub b and sleeve 2 being recessed for dog bolts 4 which pass through a washer j and flanged split sleeve 1, splined to grip the axle. To form the sleeves 1, 2, the sleeve f, Fig. 1, may be cut across, the pieces 1, 2 being then fitted in reversed position on the axle.
Patent GB-1509562-A (GB)
Title: Gun and target apparatus utilising a light signal
IPC: G01S7/486
Filed: 1975-03-26
Abstract: 1509562 Optical position finding METTOY CO Ltd 26 March 1975 12738/75 Heading H4D A gun and target apparatus takes the form of a pulsed light transmitter mounted on the gun and an associated photosensitive receiver circuit which detects the pulsed light signal from the gun transmitter when gun is pointed on target, and operates an alarm or similar responsive device. As described the transmitter, Fig. 1 comprises a multivibrator 10 the base voltages for which are controlled by timing circuit 11. When the trigger switch 15 is pulled C3 charges through resistors R 1 and R4 which turns on the multivibrator 10. When the capacitor is approaching the fully charged state the frequency has slowed down and oscillations then stop. The output from the multivibrator drives light source 19 via transistor TR3. The light source may be an infra-red diode or may emit visible light. The result is a transmitted light pulse at approximately 1000 Hz for 1 second. The receiver, Fig. 2, is mounted at the target or may be mounted on the gun with a corner reflector mounted on target to retro-reflect light to a receiver mounted on the gun. Light-dependent transistor 25 may be solely mounted at the target and the rest of the receiver circuit housed separately. Photo-transistor 25 is biased by circuit comprising transistor 26, resistors 27, 28 and capacitor 30 so that the collector emitter voltage thereof is kept constant despite changes in collector current due to changes in ambient light conditions. The reduction in output impedance in the first stage produced by capacitor 30 at frequencies at or above the transmitted light signal allows high-pass filtering of the desired signal which is fed through amplifier 21, buffer stage 22, diode pump 32 and 33 and a transistor 35. Detection of the wanted signal triggers S.C.R. 38 to operate, e.g. relay 39, which operates a visual or audible indication that a "hit" has been scored.
Patent GB-499092-A (GB)
Title: Improvements in or relating to fire-arms and projectiles therefor
IPC: F42B8/02
Filed: 1938-04-29
Abstract: 499,092. Sub - calibre projectiles ; firearms. LAW, J. A. (Logan, O.) April 29, 1938, No. 12827. [Classes 9 (i), 92 (ii), and 119] A sub-calibre projectile has rings 15, 14 abutting against shoulders on the projectile and adapted to support the projectile centrally within the bore of the gun from which it is to be discharged, these rings being stripped from the projectile, subsequently to its exit from the gun muzzle, by a die-like member 7. The rings may be frictionally applied, or may be integral with the projectile in which case they are sheared off, or rolled over on to the projectile, by the member 7. One at least of the spacer rings is imperforate, to function as a gas check. The member 7 is carried by rods 3 slidable against the resistance of springs 6 on the barrel of the gun. A tubular screen 9, preferably slightly tapered is seated in the member 7, so as to enclose the gun muzzle, ventilating apertures 10 being provided in the screen. The reciprocation of the member 7 resulting from the impact of the spacer rings, and the constraint of the springs 6, may be utilized to actuate the breech mechanism of the gun. According to a modification the spacer-ring stripping member is carried by a conical, perforated screen which is coupled by a bayonet joint to a member which can reciprocate under spring constraint on the gun barrel, the movement of the reciprocating member being used to pump oil or other fluid through a flexible or other tube to actuate the breech mechanism. The Specification states that the projectile may be shaped so that the centre of gravity is placed further forward in relation to the centre of air resistance, in order to reduce the tendency to tumble in flight, and thus to reduce the angular velocity which must be imparted to the projectile by the rifling of the gun barrel. More than two spacer rings may be used.
Patent GB-1173385-A (GB)
Title: High-Voltage Apparatus having an Insulation of Foamed Material
IPC: H05G1/04
Filed: 1967-03-20
Abstract: 1,173,385. X-ray tubes. PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd. 20 March, 1967 [23 March, 1966], No. 12865/67. Heading H1D. High-voltage apparatus comprises an insulating envelope 1 surrounded by an electric screening housing 5 and foamed synthetic resin insulating material 11 largely or wholly filling the space between the envelope and housing. A glass X-ray tube 1 which may be cooled is embedded in the foamed material 11 within the housing 5. Insulating SF 6  gas or oil may be supplied through apertures 8. Phenol resin, polystyrol or polyurethane foam may be used having a closed cell structure or an epoxy resin coating to prevent gas penetration. Surfaces engaging the housing are metallized, others are corrugated. The tube may be totally enclosed in foam which supports an earthed lead shield enclosed in an outer resilient foam layer. Sockets for receiving high-voltage plugs may be made of hard foamed material.
Patent GB-330079-A (GB)
Title: Improvements in swinging beds
IPC: B63B29/10
Filed: 1929-04-25
Abstract: 330,079. Oxendorf, L. O. April 25, 1929. Cradles; berths.-A swinging bed structure for use upon ships comprises telescopic uprights 1, 4 secured at 2, 5 to the floor and ceiling, bed supports 9 and bed frames 12 suspended from the supports 9 by members 14, 16. Both longitudinal and lateral motions of the beds relative to the uprights may be prevented by locking means such as hooks 17' and eyes, and the links 16 may be prevented from longitudinal movement along the bars 9 by staples 17.