baber/WOPTO huggingface dataset:
Patent GB-956422-A (GB)
Title: Improvements in or relating to heatable processes
IPC: B30B7/02
Filed: 1962-01-11
Abstract: 956,422. Presses. E. SIEMPELKAMP. Jan. 11, 1962 [June 29, 1961], No. 1050/62. Headings B5A, B5F and B5N. A press with heated platens, for use in forming fibreboards, plywood panels &c., comprises an upper fixed platen 1 and a lower movable platen 2, each comprising plates 3 and 4 joined by ribs 5, and each of the platens being attached to an additional heating plate, as shown in Fig. 1, and surrounded by a heat insulation hood 15. The upper and lower plates 3 and 4 of an individual platen are maintained at the same temperature in order to eliminate differential expansion between them thus preserving their plane-parallelism and avoiding any distortion of the platen as a whole. In one embodiment the same cooling fluid is circulated through each of the plates 3 and 4, by a rotary pump 9, the number of passages 8 in each plate being adjusted to ensure the desired equality of temperature (see Fig. 3), whilst in another embodiment each plate is heated independently to the same temperature (see Fig. 4, not shown). In a further modification (Figs. 5 and 6, not shown), the upper plate 3, of platen 1, and the lower plate 4, of platen 2, are traversed by the same heating medium and are connected parallel with both the heating plates 6 in the heating system 9, whilst plate 4 of platen 1 and plate 3 of platen 2 contain no heating or cooling passages.
Patent GB-303278-A (GB)
Title: Improvements in or relating to apparatus for spraying liquids
IPC: B05B7/10
Filed: 1928-01-12
Abstract: 303,278. Hill, E. H. Jan. 12, 1928. Air-pressure sprayers.-Relates to apparatus of the type comprising a container 4 having a nozzle 11 at its lower end controlled by a needle valve 9 inclined across the container towards its upper end and having exterior adjusting means, the liquid being sprayed by air issuing through an annular opening 16 around the nozzle. The container wall 4 is continued bevond an interior base 6 to form a support for the apparatus and the nozzle is situated below the plane of the base 6 and above that of the base of the apparatus. The nozzle is carried by a nipple 8 extending into the container, having a lateral opening 10, and comprises a flanged tubular body 17 inside a concentric air chamber 15 both clamped to the nipple 8 by a nut, compressed air being supplied by a tube arranged either radially or tangentially to the air chamber. The apparatus is provided with a handle 21, and the needle valve is controlled by a lever 26 fulerumed at 27 and bearing against adjustable stops 28.
Patent GB-1272732-A (GB)
Title: Method and apparatus for obtaining and injecting a liquid sample of predetermined volume
IPC: G01N1/00
Filed: 1970-01-09
Abstract: 1,272,732. Sampling for gas chromatography. BECKMAN INSTRUMENTS Inc. 9 Jan., 1970 [15 Jan., 1969], No. 01085/70. Headings B1X part B. [Also in Division B8] Apparatus for injecting metered amounts of liquid samples of predetermined volume into analytical instruments comprises a needle section 11 open at one end 14 and communicating at the other end with a plunger section 17, and a plunger 19 slidably engaging the bore 13 in the plunger section 17 and adapted to seal the other end 16 of the bore 13 in the needle section 11, at the same time sealing a port 22 in the plunger section of the needle bore 13. In use the needle section 11 is inserted through the rubber septum of a pressurised container (not shown). After the plunger is moved to open the port 22, liquid sample flows up the bore 13 and spills from the port 22. The plunger 19 is returned to seal the bore 13 and the needle and plunger sections is then inserted, for example, into a selfsealing cap 42 on a G.L.C. (Fig. 4), the shoulder 15 of the needle section 11 restricting penetration of the needle 11 into a hot carrier gas conduit 36a of the G.L.C. instrument. Heaters 45 warm the carrier gas as it flows through the inlet 46 and also heat the blocks 37, 47. The plunger 19 is then moved to open the port 22 and the build-up of carrier gas pushes the liquid sample from the needle 11 which is then withdrawn to allow the gas to carry the vapourised sample through the column 38 and into the detector 39 of the instrument.
Patent GB-288950-A (GB)
Title: Improvements in or relating to telephonic apparatus for the aid of deaf persons
IPC: H04R25/00
Filed: 1928-01-12
Abstract: 288,950. Smith, T. B. Jan. 12, 1928. Telephonic instruments for deaf persons; microphones.- A telephonic instrument for deaf persons comprises a pair of microphones 1 connected together by a metal bridge piece 2, which enters the microphone casings through holes 3 in the walls 4 and is secured by screws 6 either to the bottom or side walls of the casings as shown on the left and right hand sides of Fig. 7 respectively. A leg 7, pivoted at 8 in a divided lug 17 on the member 2, allows the microphones to be supported in a substantially upright position. Fig. 8 shows the arrangement of the electrical connections. One of the leads 10 is connected to one of the casings by nut and screw 11 and the other lead 12 is connected to the carbon blocks 13 as shown, the connecting wire 14 between the microphones running through an insulating sleeve 15 passing through holes in the casings just over the bridge member 2. The return path is through the two diaphragms and the casings to the lead 10, the return path from the right hand microphone being through the bridge member 2 to the casing of the left hand microphone. More than two microphones may be connected together bv a bridge member having a corresponding number of radial arms.
Patent GB-1195967-A (GB)
Title: Plastic Article Severing and Insulating Apparatus.
IPC: F16K17/38
Filed: 1969-01-08
Abstract: 1,195,967. Minimising fires in thermoplastic pipes. SUSQUEHANNA CORP. 8 Jan., 1969 [25 Jan., .1968], No. 1168/69. Heading A5A. The progressive burning of thermoplastic, e.g. polypropylene, piping mounted in a fire-resistant wall or floor is prevented by movable cutting means above or alongside the pipe which severs the pipe when it softens under heat. Fig. 1 shows a wall mounting in which, pipe section 26 is threaded through aperture 24 in centre wall 22 of metal frame 11. The frame carries cutting blade 28 slidably mounted in upper and lower guide tracks 14, 16 in the side walls 12 by means of tabs 36, 38 on upper and lower metal plates 32, 34 of blade 28. Central portion 30 of blade 28 is a heat-insulating plate, e.g. of asbestos. Normally lower plate 34 rests directly on the upper pipe surface or (Fig. 2, not shown) on a fusible plug or link (42). When pipe 26 is softened by fire, blade 28 falls under gravity until plates 32, 34 are retained in inclined ends 18, 20 of tracts 14, 16, forming a sealing-tight closure. For floor-mounted piping the blade is horizontally disposed, and activated by a weight or spring (Figs. 4, 5, not shown).
Patent GB-679212-A (GB)
Title: Improvements relating to pocket lenses
Inventor: PHILLIPS JAMES WILFRED
IPC: G02B25/00
Filed: 1950-01-17
Abstract: 679,212. Magnifying-lenses. LUCAS, Ltd., J. Jan. 2, 1951 [Jan. 17, 1950], No. 1173/50. Class 97 (i). A pocket lens comprises a cover formed of two similarly shaped parts a held together by clips d to form a hollow space open at the top in which can slide a member e carrying a lens h. The lens slide e has members g engaging correspondingly shaped recesses b in the members a and which may be gripped by the fingers to slide the lens out of the cover for use, such withdrawal being limited by engagement of stops f on the slide with stops c on the cover.
Patent GB-488868-A (GB)
Title: Improvements in roofing tiles
IPC: E04D1/04
Filed: 1937-01-14
Abstract: 488,868. Roofing - tiles. UPTON, A. M. Jan. 14, 1937, No. 1190. [Class 87 (i)] A roofing-tile comprises two or more portions 1, 2 of concavo-convex cross-section, convex on the upper surface of the tile to provide one or more channels. The tile is cambered longitudinally and provided with nibs 8, 9 and preferably with nail holes 13. Sharp edges 3, 4, 5 may be provided to the portions 1, 2 and may be surfaced off at 10, 11, 12 or the portions 1, 2 may be separated by flat or curved portions.
Patent GB-330932-A (GB)
Title: Improved means comprising extra air admission and charge mixing devices for internal combustion engines
IPC: F02M29/06
Filed: 1929-01-14
Abstract: 330,932. Robinson, H. W. Jan. 14, 1929. Induction pipes, extra air valves and fittings for.-A chargemixing device comprising long and short helically-twisted blades d mounted in the induction pipe is used in combination with an extra air admission device comprising a suctionactuated ball i, Fig. 2, or piston i<1>, Fig. 9, acting in conjunction with two seats, one seat being adjacent an opening communicating with the atmosphere and the other communicating through a restricted passage b with the induction pipe. The devices may be carried by a plate fitting a adapted to be secured to the induction pipe or manifold, or may be mounted directly on the induction pipe flange. When used in conjunction with a carburettor having a vacuum fuel feed, the air valve is mounted on the vertical limb of a T-shaped fitting the horizontal limb of which communicates with the passage b and forms pa.rt of the suction line to the vacuum tank.
Patent GB-685703-A (GB)
Title: Improvements in or relating to bolts, studs and the like and the manufacture thereof
Inventor: FORD GEORGE
IPC: F16B33/02
Filed: 1950-01-17
Abstract: 685,703. Grinding screw-threads. ROLLSROYCE, Ltd. April 11, 1951 [Jan. 17, 1950], No. 1269/50. Class 60. [Also in Group XXIV] A method of making bolts, studs or like members by grinding the threads therein includes the step of withdrawing the grinding wheel gradually from the blank at the junction of the threaded and plain portions thereof so as to form a run-out portion which has a gradually decreasing thread depth and extends axially of the member for a distance at least equal to the pitch of the thread and preferably for a distance equal to twice the pitch. The grinding wheel may be run out so that its grinding edge travels along a circular arc 13a, Fig. 1, or a straight line 13b, Fig. 4; in the former case, the radius of the arc may be selected so that the displacement area (i.e. the amount by which the axial cross-section of the land of the full female thread engaged by the bolt or stud must be reduced to occupy the run-out portion of the latter) for any given thread is equal to, or less than, that of the corresponding die-cut thread. The grinding wheel may be controlled to produce the run-out by providing it with a follower co-operating with a cam which is arranged so as to be adjustable axially of the bolt or stud.
Patent GB-157404-A (GB)
Title: Improvements in wireless receiving systems
IPC: H01Q7/00
Filed: 1921-01-10
Abstract: 157,404. Ges f³r Drahtlose Telegraphie. Dec. 2, 1919, [Convention date]. Directive signalling; aerials.-In a directive receiving system employing a rotating frame, the frame consists of the two oppositely wound coils 1, 2 connected as shown to a tuning condenser 5 and a receiving set 6. With this arrangement, the effects of the electrical field in the two coils, when the frame is in its minimum position for the electromagnetic field, neutralize each other and a sharp minimum position is obtained.
Patent GB-1115101-A (GB)
Title: Improvements in or relating to the manufacture of semiconductor bodies
IPC: C30B31/02
Filed: 1966-01-12
Abstract: 1,115,101. Semi-conductor devices. SIEMENS A.G. 12 Jan., 1966 [13 Jan., 1965], No. 1401/66. Heading H1K. After removing material from the surface of a semi-conductor by vaporization in a diffusion chamber, impurity is introduced by means of an inert or reducing reaction gas and diffused into the body without removing it from the chamber, thereby avoiding contamination of the prepared surface. Typically in making PNP transistors silicon wafers are disposed in a quartz tube containing a source of gallium trioxide and heated in vacuo for an hour at 1100‹ C. to remove the surface to a depth of 5 Á. Then while moist argon flows through the tube the wafers are heated at 1100‹ C. for an hour, and then at 1200‹ C. for 2 hours, to oxidize the surface. The argon flow is then replaced by a reverse flow of moist hydrogen which in passing over the gallium trioxide reduces it to volatile gallium oxide which is carried forward to the wafers. Continuation of the process for 10 hours with the silicon at 1200‹ C. provides a diffused P layer 18 Á thick. In an alternative method the wafers are first oxidized in a separate vessel, photolithographically processed to form apertures in the oxide coating, and then placed in a tube with a source of boron trioxide and the tube evacuated. After heating at 1100‹ C. to remove the wafer surface, a flow of argon or nitrogen is directed through the tube and a movable heater brought up to evaporate the boron trioxide into the flow. After continuing for 2 hours to provide P zones in the masked wafers the process is terminated by removing the heater and replacing the inert gas flow with oxygen.
Patent GB-1028259-A (GB)
Title: Ultrasonic probes
Inventor: MULLINS MICHAEL ALAN
IPC: B06B3/02
Filed: 1965-01-13
Abstract: 1,028,259. Ultrasonic wave couplings. M.E.L. EQUIPMENT CO. Ltd. Jan. 13, 1965, No. 1520/65. Heading H4J. An ultrasonic probe, useful for plastics welding, is in the form of a tube 1 having two regions 4, 5, each of uniform cross-sectional wall area. The region 5 remote from the transducer is of smaller cross-sectional area than the region 4 and the reduction in area is carried out over a short longitudinal distance by a step 10. In use, the step 10 is at or near a nodal point. Tube 1 has a closed end 3 of flared form to contact the medium to be acted upon. A coupling part 2, also of cylindrical form, has a solid region 6 with a screw thread 7 for connection to a transducer. A region 8 is of annular cross-section and a flared end 9 exactly fits tube 1. The composite device produces an increase of vibrational amplitude by virtue of the differing cross-sectional areas 6 and 8, and 4 and 5. End 3 may be contoured if a particular weld shape is required. The hollow interior may be evacuated or filled with coolant.
Patent GB-1397557-A (GB)
Title: Coin issuing mechanisms
IPC: G07D1/02
Filed: 1972-02-16
Abstract: 1397557 Coin-delivering apparatus NATIONAL RESEARCH DEVELOPMENT CORP 12 Jan 1973 [16 Feb 1972] 1667/73 Divided out of 1397556 Heading G4X The lowermost coin in a tube 12 is discharged by a reciprocating plate 26, the thickness of which is greater than that of one newly minted coin so that, in the rest position shown, the lowest coin and part of the next to lowest coin are located within a circular aperture formed in the plate 26; the operative pushing edge 30 of the plate is thinner than one worn coin so that only the lowest coin is discharged, the remaining coins being lifted by bevelled edge 28 and falling back into the aperture on return of plate 26 to the position shown. This lifting and falling settles the stack, i.e. aligns the coins in face to face relation. Plate 26 is actuated by solenoid 36 and returned by spring 38. A stationary plate 22 supports the stack and is formed with a U-shaped cut-out, through which the discharged coin falls. The apparatus may be used to dispense change in the public transport ticket system disclosed in the parent Specification.
Patent GB-144976-A (GB)
Title: Improvements in apparatus for use in the manufacture of hollow building blocks
IPC: B28B7/18
Filed: 1919-03-13
Abstract: 144,976. Nystr÷m, J. A. A. March 13, 1919. Cutting-apparatus.-Relates to apparatus for partially severing the walls of moulded plastic hollow blocks before or after removal from the mould in order to render them readily divisible, and comprises a base 62 adapted to be placed over a suitable support such as the mould frame described in Specification 144,776, and furnished with ears 66 to engage the mould flange &c., such base being furnished with guides 67 for a frame 70 carrying knives 74, which are adapted to work through apertures in the base and to be forced into the plastic material to form slots 76, Fig. 4, in the walls 31 of the block. The frame 70, Fig. 1, is operated by bundles 71 and is retained in its raised position by a shackle 75 engaging a recess in one of the guides 67. The invention is described in connexion with the blocks described in Specifications 11025/13 and 143,633.
Patent GB-754133-A (GB)
Title: Improvements in chairs
Inventor: INGRAM GEORGE
IPC: A47C3/04
Filed: 1954-01-21
Abstract: 754,133. Loose covers. LEA BRIDGE INDUSTRIES, Ltd. Nov. 12, 1954 [Jan. 21, 1954], No. 1827/54. Classes 52(2) and 52(4). An open-framed chair made of rod or tube having flexible straps spanning its seat and back frames and with armrests connected to the back frame and side bars of the seat is provided with a detachable cover with a flat pocket 13 for the back rest and flat pocketed sides 14 for the arms, the part 15 covering the seat having a deep skirt 16. The chair described is constructed as in Specification 754,209 so as to be stackable when the cover is removed.
Patent GB-563361-A (GB)
Title: Improvements in or relating to machines for delivering measured quantities of small articles
IPC: A61J7/02
Filed: 1943-02-04
Abstract: 563,361. Counting and packing articles. SUMNER, W. Feb. 4, 1943, No. 1853. ' [Class 94 (i)] [Also in Group XIX] A machine for delivering a predetermined number of small articles, such as medicinal tablets, pills, &c. into a receptacle, such as a bottle or other container, comprises a hopper 1, Figs. 2 and 3, discharging into a tubular casing 2 in which is arranged a rotatable feeder 5 that directs the articles to an opening in the casing leading to a shoot 10. At the base of the shoot is a measuring stop mechanism consisting of a pivoted lever 15 actuated by a handle 18 or by a pedal to withdraw a slide out of a slot in the shoot and at the same time operate a twoarmed bracket 21 to move a spring member 24 on one arm of the bracket into a slot in the shoot to cut off a determined number of the articles. The other arm of the bracket carries an adjustable set-screw 23 to regulate the amount of lost motion of the actuating lever 15. To ensure that the articles are urged towards the outlet in the casing, spring fingers 27 (not shown) are arranged in slots in the feeder 5.
Patent GB-739349-A (GB)
Title: Improvements in metal gaskets for cylinder heads of internal combustion engines
IPC: F16J15/08
Filed: 1954-01-22
Abstract: 739,349. Joint-making packing. DAIMLER BENZ AKT.-GES. Jan. 22, 1954 [Jan. 26, 1953], No. 2025/54. Class 122 (3). A cylinder head gasket for internal combustion engines comprises a metal sheet 8 reinforced around the edges of the gas passages 5 therein by sheet-metal rings 9, 10 held together and against the metal sheet 8 by flanged steel rings 12, the liquid passages 7 being sealed by rubber rings 13. The flanged rings 12 are copperplated after flanging and the rubber rings 13 are provided with a peripheral groove 14 to removably engage the edges of the sheet 8.
Patent GB-1317871-A (GB)
Title: Vulcameter
IPC: G01N11/10
Filed: 1971-01-15
Abstract: 1317871 Improvements in vulcameters DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 15 Jan 1971 [15 Jan 1970] 2102/71 Heading G1S In vulcameters of the torsional shear or linear shear type the sample testing chamber walls and or the surface of the force transmitting element are provided with dovetail shaped grooves. Rectangular or round grooves and dovetail shaped grooves can be provided alternately.
Patent GB-806533-A (GB)
Title: Method and apparatus for synthesizing hydrocarbons
IPC: B01J8/18
Filed: 1956-01-21
Abstract: Hydrocarbons are synthesized from carbon monoxide and hydrogen in the presence of a finely divided catalyst by a method which includes the steps of dividing the synthesis gas into a plurality of confined streams, passing each of the streams upwardly in parallel through confined beds of finely divided catalyst at a sufficient linear velocity to fluidize the catalyst, continously removing the exothermic heat of reaction by passing a heat exchange medium in a confined stream in heat exchange relation with the fluidized catalyst in each of the fluidized beds and maintaining the level of the fluidized catalysts the same in each of the <PICT:0806533/IV (b)/1> beds.  The catalyst may be alkali promoted reduced iron oxide ground to 20-200 microns.  The heat exchange means may occupy 4-40 per cent of the cross-sectional area of the reaction chamber.  In a preferred example a main steel casing 10 is lagged with glass fibre insulation 12 and contains 19 sub casings 26 each having an area of 9.6 square feet.  Part of each sub-casing is occupied by heat exchange tubes 28 which extend from lower headers 30 to upper headers 32.  The remainder of each sub-casing is filled with catalyst 29.  Headers 30 are connected to a manifold 34 and headers 32 are connected to a manifold 36. Screen 54 carried by grid 53 supports a plurality of glass or ceramic marbles, or raschig rings 56.  Preferably the flow of reactant gases and the cross-sectional area are related by the equation <FORM:0806533/IV (b)/1> in which V1 is the linear velocity of the synthesis gas, V2 is the actual space velocity of the synthesis gas, Af is the free cross-sectional area of the confined fluidized catalyst bed and K is a constant lying between 0.084 and 0.0021.