baber/WOPTO huggingface dataset:
Patent GB-974431-A (GB)
Title: Improvements in or relating to methods of manufacturing aluminium phosphide crystals
IPC: C30B9/00
Filed: 1961-01-19
Abstract: Aluminium phosphide crystals are prepared by the reaction of molten aluminium, heated to between 1100 and 1800 DEG C., with an oxygen-free atmosphere containing phosphorus, which can be a stream of phosphine obtained from yellow phosphorus and potash lye or dilute acid and aluminium phosphide, or a stream of hydrogen and phosphorus vapour led over the melt. The aluminium may be melted in a corundum vessel in an oxygen-free atmosphere, e.g. hydrogen, in a heated corundum tube, and before the phosphorus is introduced the temperature should have reached 1000 DEG  C.  To produce specified electrical characteristics, doping impurities can be introduced either by alloying them, e.g. Cu, with the aluminium or by introducing them with the hydrogen stream, e.g. by passage over a separate vessel containing Zn or Cd at 400 DEG  C. or by adding hydrogen sulphide or hydrogen selenide to the stream. The crystals are separated from any residual aluminium by either mechanical means or by chemical treatment, which may be repeated, with either 1,2-dibromo-ethane, 1,2-dibromo-propane, or 1,3-dibromo-propane, which dissolves the aluminium.ALSO:Aluminium phosphide crystals prepared by the reaction of molten aluminium heated to between 1100 DEG  C. and 1800 DEG  C. with an oxygen-free atmosphere containing phosphorus, e.g. phosphine (see Division C1) are doped with cadmium, zinc, sulphur, selenium or copper to form a semi-conductor device which may be a recombination - radiation source.  The impurity may be introduced as an alloy with the aluminium, e.g. copper, or in the gas stream, e.g. cadmium or zinc in hydrogen at 400 DEG  C. or hydrogen sulphide or selenide.
Patent GB-229279-A (GB)
Title: Improvements in and relating to hoisting apparatus for mineshafts
IPC: B66B17/12
Filed: 1925-01-24
Abstract: 229,279. Kali-Industrie Akt.-Ges. Feb. 11, 1924, [Convention date]. Cage lifts.-In hoists of the kind in which the cage A<2> is raised bv admitting liquid to the cage A<1> from a tank C and the liquid is returned to the tank C by a pump P after being discharged into the sump S or tank F at the end of the run, the tanks C, F are made so large that the hoist can be used when the pump is not running. The cages are connected by a heavy under-rope U, the weight of which is sufficient to cause acceleration at the commencement of the run and retardation at the end. Reference has been directed by the Comptroller to Specification 3926/75.
Patent GB-258472-A (GB)
Title: Improvements in or relating to nuts, screw-heads and the like
IPC: F16B31/02
Filed: 1926-01-26
Abstract: 258,472. Room, J. Jan. 26, 1926. Nuts.-To prevent overstraining when tightening. A cylindrical nut B is encircled by a split ring A which engages the nut by friction when turned in one direction but when turned in the opposite direction to unscrew the nut the end a<1> of the ring engages the shoulder B<1> of the nut. The ring is retained by projections B <2> and is knurled or provided with flats. The hole B<3> may be eccentric. An annular projection B<4> is provided at one end so that the con tacting surfaces may be small.
Patent GB-1259680-A (GB)
Title: Method and apparatus for measurement of the phase of weak signals
IPC: G01R25/00
Filed: 1969-01-14
Abstract: 1,259,680. Phase measuring. SYNCHRON. 14 Jan., 1969 [23 Jan., 1968], No. 2230/69. Heading H3A. In a phase measuring system, a signal # i  whose phase is to be measured is mixed with a reference signal # r  to produce a difference frequency # i  - # r  which is phase compared with a signal ## of the same frequency derived directly from the reference signal. The two signals # i , # r  are applied via a tuned circuit 1 and amplifier 2 to a mixer circuit 3 to produce an output at the difference frequency which is then amplified and applied to one input of phase comparator 5. The other input to the comparator 5 is fed with the signal ## which is derived from a frequency synthesizer 6. The output from the phase comparator may adjust a phase shifter in the path of the ## signal.
Patent GB-849732-A (GB)
Title: Compositions for use in maintaining locomotive fire-boxes and smoke tubes in a clean condition
Inventor: THOMAS ROBERT KENNETH
IPC: F28G9/00
Filed: 1957-07-15
Abstract: 849,732. Preventing incrustation. XZIT (GREAT BRITAIN) Ltd. June 30, 1958 [July 15, 1957], No. 2249/60. Divided out of 849,731. Class 51 (1). A composition for preventing deposits in the fireboxes and smoke tubes of locomotive type solid fuel boilers when placed on the fire and allowed to volatilise comprises the product of mixing one or more salts of one or more metals capable of acting as a catalyst to reduce the combustion temperature of carbon which will volatilise or form volatile compounds at red heat, one or more alkali metal chlorides and ammonium sulphate and/or ammonium chloride 4 cwt. of copper sulphate crystals, 1 cwt. zinc dust and ¢ cwt. oxalic acid are mixed with 10 lb. water, and the dry product of the exothermic reaction is pulverised with sodium chloride, ammonium chloride and ammonium sulphate. The powder is heated to 120‹ C. to form a free flowing powder, and made up in paper or polythene envelopes in portions of about 4 ozs. These portions are used as described and claimed in Specification 849,731.
Patent GB-371057-A (GB)
Title: Wound electric condenser and method of manufacturing same
IPC: H01G4/32
Filed: 1931-01-23
Abstract: 371,057. Condensers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Jan. 23, 1931, No. 2305. Convention date, Feb. 15, 1930. [Class 38 (iil.] In making a wound condenser the initial layers 3 are wound on a mandrel so as to be capacity-free and to such an extent that, after winding on the condenser 1, 2, the subsequent pressing operation does not cause the radius of curvature of the inner layers at the bends a to be so small as to cause the breakdown of the dielectric. In an example the ratio of voltage to the radius measured in thousandths of a millimetre should be smaller than or equal to 3.
Patent GB-1093052-A (GB)
Title: Improvements in or relating to gas inlet valve-gear for internal combustion gas engines
Inventor: POPE JOSEPH ALBERT
IPC: F02M67/10
Filed: 1965-01-18
Abstract: 1,093,052. Valves. MIRRLEES NATIONAL Ltd. Jan. 8, 1965 [Jan. 18, 1964], No. 2311/64. Heading F2V. [Also in Division F1] In a pressure-scavenged I.C. engine pressurized fuel gas is admitted into the pressurized air passage through a mechanically actuated rotary valve 20b upstream of the cylinder inlet valve. Pressurized air passes from manifold 11 through housing 12 to the cylinder inlet valve (not shown). Pressurised fuel gas passes from manifold 17 through an annular passage 14 and radial ports 15 in a detachable valve seating 13 through radial parts 21 in valve ring 20. The valve ring is rotated or oscillated by a spring-loaded stem 19, connected to spokes 20a, driven through a chain drive or helical gearing from the engine cam-shaft. A differential gear in the valve drive gear permits alteration of the valve timing.
Patent GB-580549-A (GB)
Title: Improvements in or relating to the construction of steel beams
IPC: E04C3/04
Filed: 1944-02-08
Abstract: 580,549. Steel beams. FINDLAY, G. K. Feb. 8, . 1944, No. 2338. [Class 20 (ii)] A steel beam comprises two main longitudinal units with a series of secondary units interposed between and connected as by welding, bolting &c.. to the main units to form a unitary element. The beam may comprise two channel-section longitudinals a, b, with their webs d, e, opposed, tubular members f being interposed between and welded, riveted or bolted to the longitudinals. The channel-section longitudinals may have flanges c parallel to the web. The secondary members f may be of square, polygonal or channel shape in cross section, and may be disposed at any angle to the longitudinals. They may, e.g., be at right angles to the longitudinals and protrude through the webs d, e and may then be utilized for the passage of heating pipes and electric cables &c. The ends of the longitudinals may be provided with additional plates i, k provided with holes for securing to concrete columns. Specification 569,503 is referred to.
Patent GB-1483672-A (GB)
Title: Containers for pressurised fluids
IPC: B65D8/22
Filed: 1975-01-20
Abstract: 1483672 Packaging container for pressurized liquids; screw caps A R RAUSING 20 Jan 1975 [14 Feb 1974] 2380/75 Headings B8D and B8T In a packaging container for pressurized liquid comprising a plastics enclosure composed of two parts joined by peripheral flanges 5, 6 against which an edge of an outer strengthening sleeve 8 bears, the part 4 which projects beyond the sleeve 8, has a central tubular outlet 10 adapted to be sealed by a removable cap 12 and the thickness of material forming the tubular outlet 10 and the peripheral flange 5 is greater than the wall thickness of the part 4. The said wall thickness preferably does not exceed 25% of said material thickness of the outlet 10 and flange 5. The cap is retained on the outlet 10 by screw threads. A sealing washer 16 is provided in the cap which may also include a projecting part 17 glued to the wall of the part 4 so that the part 17 must be broken when the cap is removed. Wings 15 on the screw-threaded cap assist in its application and removal from the enclosure. The surfaces of the part 4 and the casing 8 may be provided with a reflecting metallized layer.
Patent GB-254214-A (GB)
Title: Mirror device for forward and back vision for motor and like vehicles
IPC: B60R1/10
Filed: 1926-01-27
Abstract: 254,214. Fleuriau, D. June 27, 1925, [Convention date]. Look-out reflectors. - In an arrangement of three reflecting mirrors upon a motor or like vehicle for giving the driver a view of the traffic both to the front and rear, the three mirrors 8, 9, 11, of which 8 and 11 provide the view to the front and 9 the view to the rear, are mounted upon a single telescopic arm 3, which is attached to the windscreen 1 or to a front panel of the vehicle and is disposed below or preferably above the set of mirrors so as not to interfere with the driver's field of view. In the construction shown the mirrors are carried by supporting rods 5, 6, which are pivoted at the outer end of the arm 3 and to which the mirrors are hinged by balljoints 7, the rod 5 carrying the mirrors 8, 9 and the rod 6 carrying the mirror 11 through the medium of a further adjustable rod 10.
Patent GB-449670-A (GB)
Title: Improvements in and relating to piston pumps operated by cam tracks
IPC: F04B1/20
Filed: 1936-01-27
Abstract: 449,670. Actuating pumps. STOUTZ, R. DE, 36, Kreuzbuhlstrasse, Zurich, Switzerland. Jan. 27, 1936, No. 2476. Convention date, Feb. 2, 1935. [Class 102 (i)] 'Relates to pumps, particularly for viscose, of the type having a revolving cylinder body 5 and plungers 7, reciprocated in bores parallel or radial to the driving shaft by opposed cams, one 11 for the suction stroke and the other 8 for the discharge stroke. Either the cylinder body or the cam tracks may revolve. The invention consists in means for avoiding variations in the discharge due to wear in the cam tracks. In the development, a plunger 7 is shown in various positions. The discharge stroke a is effected by the cam rise I-III and is shorter than the suction stroke IV-VI by a distance b, less a distance s representing the lost motion due to wear. This lost motion is taken up by a cam rise VI-VIII while the cylinder bore is still open to the suction port 17 in the valve 3. The plunger then moves on the level portion VIII-I of the cams until the discharge port 18 opens. The invention is applicable also to a radial cylinder pump.
Patent GB-551602-A (GB)
Title: Improvements in or relating to apparatus for covering balls
IPC: B29D22/04
Filed: 1942-02-26
Abstract: 551,602. Tennis &c. balls. HUMPHREY, W. E. Feb. 26, 1942, No. 2547. [Class 132 (ii)] In a machine for covering tennis balls or the like with 8-shaped cover sections, loading devices insert the sections in flexible applicators which are then flexed around the ball core to apply the sections. The sections in passing to the applicators are uniformly condensed or reduced in area. The machine is motor driven and each cycle of operations is carried out automatically, after depressing a starting button, through the agency of a timing shaft and a series of electrically controlled friction clutches. In applying a cover, a solutioned ball A is placed by the operator on a pivoted support 170, and two solutioned cover sections of the usual 8-shape are placed, solution side uppermost, one in each of two loaders D, D<SP>1</SP>. The loaders, each of which embodies a plunger surrounded by resilient rods 105 descend and force the solutioned sections in a contracted or condensed condition through a tapered passage into a pair of applicators or hands C, C<SP>1</SP> which move upwards to receive the sections. The loaders rise and the applicators after returning to their lower positions are rotated by connecting rods 159, through 90 degrees about shafts 121 in order to present the solutioned sections to the ball. The applicators are constructed of a plurality of flexibly mounted sections so that, on being advanced by links 119 into contact with the ball they are caused to wrap around the ball and apply the cover sections thereto. Before the applicators approach the ball, the ball support 170 rocks downwardly and the ball is temporarily held by a pair of lateral grippers until the applicators start their enfolding movements. After completion of the enfolding movements, the applicator C<SP>1</SP> is first withdrawn leaving the ball grasped by the applicator C, and is then returned to tamp and spread its cover section into position. A similar tamping movement is performed by the right-hand applicator C whilst the ball is grasped by the left-hand applicator. The two applicators are then withdrawn, the ball drops into a container and the various mechanisms resume their original positions. The lateral grippers may be arranged to make a quick reciprocation to hold the ball at the instant when the applicators are withdrawn in order to prevent the ball sticking thereto.
Patent GB-174638-A (GB)
Title: Improvements in sod spreaders for peat-getting machines
IPC: E21C49/00
Filed: 1922-01-27
Abstract: 174,638. Verhoeven, A. Jan. 31, 1921, [Convention date]. Endless chain conveyers with slat and lath carriers; discharging-devices; sectional and like framework.- The framing of the sod spreader of a peatgetting machine of the type having a movable supporting bar for the sod-carrying plates is made in sections a, b, c, d connected loosely by screws f at the centre of the curved ends e. Peat extruded continuously from the press g is cut into sods on leaving the outlet h which are laid on plates k hinged at one side to an endless chain i and supported by a movable bar (not shown). When the first sod arrives at the end of the spreader, the bar is moved down and the sods slide to the ground. The plates resume the horizontal position on the upper run.
Patent GB-588172-A (GB)
Title: Improvements in or relating to multi-point electrical connectors
IPC: H04Q1/02
Filed: 1945-02-02
Abstract: 588,172. Mounting switches on racks. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., MILHENCH, H., GRESTY, B. C., and COMFORT, E. E. Feb. 2, 1945, No. 2625. [Class 40 (iv)] [Also in Group XXXVI] In a multipoint electrical connector suitable for detachably mounted equipment which is supported independently of the contacts, e.g. as in automatic telephone switches, the contacts forming one of the complementary parts are secured together to form a rigid unit which is arranged to have appreciable freedom of movement relative to the supporting member, thereby facilitating alignment of the contacts. In the plug connector, Fig. 8, supported by lugs (not shown) on the plate 45, the contacts (one only of which is shown) 41 are mounted on the insulating strip 42 secured to the clamp plate 43 by screws 44, countersunk into the ebonite block 40. Slotted holes in the plate 45, through which pass shouldered screws 49 screwed into the clamp plate 43, permit relative lateral movement of the contact assembly. In a jack assembly, Fig. 3 (not shown), similar relative movement is permitted, by mounting the contacts on a member slotted to take a screw, which extends into a fixed mounting. Specifications 450,019 and 475,116 are referred to.
Patent GB-305465-A (GB)
Title: Improvements relating to the carbonization of nickel and nickel alloys
IPC: C23C8/34
Filed: 1929-01-25
Abstract: 305,465. Westinghouse Electric & Manufacturing Co., (Assignees of Elsey, H. M.). Feb. 4, 1928, [Convention date]. Vacuum tubes.-Nickel, and nickel alloys, particularly for use in electron tubes, are provided with a carbonized surface by first oxidizing the surface and thereafter heating the material, for example to 700-1000‹ C., in a hydrocarbon gas whereby the oxide is reduced and the surface of the metal is carbonized. The hydrocarbon may be casing-head gasoline, butane, ethylene, ethane, &c., and may be diluted with nitrogen, argon, or helium. The Specification as open to inspection under Sect. 91 (3) (a) describes a similar treatment for tungsten and other metals. This subject-matter does not appear in the Specification as accepted.
Patent GB-348009-A (GB)
Title: Means for simultaneously locking the doors of motor cars or other vehicles
IPC: E05B65/36
Filed: 1930-02-13
Abstract: 348,009. Fastenings operated from a distance. HEDGES, A. E., Kingston, Taunton, Somerset. Feb. 13, 1930, No. 2698/31. Divided on 342,907. [Class 44.] The operation of any of the usual latches or bolts of motor-vehicle doors actuates supplementary means to lock all the doors of the vehicle. A barrel lock 13 rotates a spindle 5 to which is secured a pulley 15 retained by a spring-pressed plunger and keyed to a chain or Bowden cable 17. This cable passes through a tube 19 to the opposite side of the vehicle where it actuates a second pulley 15 mounted on a spindle 5. To each of the spindles 5 is secured the supplementary locking means which in Fig. 3 comprises a disc 7 with pivoted bolts 8 and in Fig. 6 a turn button 25.
Patent GB-235520-A (GB)
Title: Improvements in air heating appliances
IPC: F24C1/14
Filed: 1925-01-30
Abstract: 235,520. Chauffage et Eclairage Sepulchre Soc. Anon. June 11, 1924, [Convention date]. Air-heating fittings.- In an air-heater for use with oil or gas burners, of the type comprising a flue or conduit extending upwardly from the source of heat and connected at the top to a plurality of downward passages 5 opening at their ends to an annular header provided with an outlet 7, the lower end 13 of the flue or conduit (which in the example shown is formed by a number of tubes 4) is open and above the source of heat, the passages 5 are formed by tubes of circular section, and the outlet 7 is of restricted area to retard the circulation of the gases through the apparatus and to produce a pressure at the opening 13 slightly above that of the atmosphere in order to prevent the entry of air. The air to be heated passes into and out of the casing 3 by holes 11, 12. The inlets to the tubes 5 may be of different areas to equalize the flow of gases through them.
Patent GB-469742-A (GB)
Title: Improvements in devices for cleaning and frictional treatment of the scalp
IPC: A61H7/00
Filed: 1936-01-29
Abstract: 469,742. Scalp-massaging appliances. RYCHNER, E. Jan. 29, 1936, No. 2760. Convention date, Jan. 29, 1935. [Class 81 (ii)] In a device for massaging and rubbing liquids and ointments into the scalp of the kind wherein absorbent pads are detachably connected to finger-like projections on a holder fitted with a handle, the pads are adapted to be sprung into operative position in shoes formed at the end of the fingers. The handle and finger-like projections are preferably made in one piece from sheet metal, suitably bent to form the handle 1b and fingers 1a. The edges of the strip forming the handle may be beaded, or overlapped as shown in Fig. 10. At the tip of each shoe provided on the fingers, a pocket 1d is formed by bending over flaps le. The heel of each shoe, Fig. 2, is formed by bending over lugs 1f The pads 2, Fig. 4, are flat and tapered, and are formed with a nose piece 11 adapted to enter pocket 1d, and with a bevelled heel portion 13 adapted to engage with the lugs 1f of the shoe. The pads are sprung into position in the shoes and are removed by a tool inserted into the space 1g between the lugs 1f, a depression may be formed in the top of each shoe for further engagement with the pad. The pads may be reinforced by a saddle piece 9 and this may be integral with a central reinforcement plate 8. The plate 8 may be used without the saddle piece. In a modification, each shoe may be formed with a central longitudinal partition adapted to enter a groove in the pad. The working edges of the pads are aligned with the tips of the shoes as shown in Fig. 10. The Specification as open to inspection under Sect. 91 comprises also the following subject-matter : the pads may be pushed onto pins e, Fig. 2 (Cancelled), and retained in position by a cover f resiliently mounted on or hinged to the handle, or connected thereto by a nut and bolt k. This subject-matter does not appear in the Specification as accepted.
Patent GB-572351-A (GB)
Title: Improvements in absorption refrigerating apparatus of the continuous cycle type
IPC: F25B33/00
Filed: 1944-02-15
Abstract: 572,351. Absorption apparatus. AKTIEBOLAGET ELEKTROLUX. Feb. 15, 1944, Nos. 2769 and 2770. Convention dates, Jan. 14, 1943, and Nov. 5, 1943. [Class 29] The boiler 10 of an absorption refrigerating apparatus of the continuous cycle type is in the form of a conduit in heat-conducting relation to two flues 29, 30 each having its own heater. Each flue may have a vapour pump 27, 28 in heat conductive relation therewith and when two pumps are used they have separate feed pipes 25, 26 preferably in heatexchange connection with the degasified solution passing from the boiler to the absorber 17.
Patent GB-586436-A (GB)
Title: Improvements relating to hand trucks
IPC: B62B3/04
Filed: 1944-02-15
Abstract: 586,436. Hand trucks. SLINGSBY, G., and SLINGSBY, C. Feb. 15, 1944, No. 2789. [Class 108 (i)] In a hand truck provided with a low loading platform mounted on staggered wheels and having a hand lever with a. wheel at one end pivoted to the frame for tilting the platform to ground level, the platform is of substantially unitary construction with bent down sides tapered toward the front edge of the platform to allow the latter to be depressed to the floor for loading and unloading purposes. As shown in Fig. 4, the hand truck comprises a platform 1, flanged sides 2 tapering towards the front 6 and a rounded rear portion 3. The handle 11 is pivoted on a transverse bar 14 which acts as a fulcrum for wheels 16 by which the platform is raised at the rear end so that the front 6 can be pushed under the load by pressure from the operator's foot on the rounded part 3. Additional wheels 7 and 16 are mounted on transverse axles such that by manipulating the handle the platform can be supported by the wheels 16, the wheels 16 and 7, the wheels 16, 7 and 10, or the wheels 16 and toe 6 of the platform. The wheels 16, Fig. 2, carry a stop 17 to abut under the platform 1 and further stops 18 at the extremity of slots 13 in the platform are provided for the bifurcated ends 12 of the handle when they are in the maximum lift position of the platform. A forked chain grip 26 may be secured by a pin or bolt in any of the holes 30 along the handle 11 to provide various leverages in accordance with the weight of the load to be hauled on to the platform by the chain 23. A hooked bar may be used instead of the chain. Specification 554,745 is referred to.