baber/WOPTO huggingface dataset:
Patent GB-590099-A (GB)
Title: Improvements in or relating to combustion chambers of oil engines
IPC: F02B23/00
Filed: 1945-04-11
Abstract: 590,099. Combustion chambers of oil engines. LENORMAND, G. E. April 11, 1945, No. 9064. Convention date, Nov. 15, 1943. [Class 7 (iii)] An oil engine has a combustion chamber formed wholly or in part in the piston, the piston cavity 7 being covered by a disc 13 which is formed with a small orifice 9 adjacent the injector 2 and serving almost wholly to admit fuel to the cavity, and one or more larger orifices 10 through which air enters the cavity on the compression stroke. The Specification as open to inspection under Sect. 91 describes also a modification Fig. 1 (Cancelled) wherein a lenticular cavity 7 is formed partly in a cup shaped member 4 secured to the piston by a nut 5 and partly in a cap 8 which is provided with an opening 9 through which fuel is delivered by an injector . 2 and one or more openings 10 through which air enters the cavity. The chamber may be formed by casting and then machining carried out through an opening in the piston head which is subsequently closed by a plug. In a modification the chamber may be spherical and formed in a separate member screwed into the piston and the openings 9, 10 and the fuel injector may be parallel to or inclined to the piston axis. In another modification the chamber 7, Fig. 9 (Cancelled), may be hemispherical with a central air inlet 10 and the fuel injector 2 arranged in the side of the cylinder. This subject-matter does not appear in the Specification as accepted.
Patent GB-884363-A (GB)
Title: Improvements relating to two state transistor circuits
Inventor: ROLFE GEORGE JOSEPH
IPC: H03K3/011
Filed: 1957-03-20
Abstract: 884,363. Transistor circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 13, 1958 [March 20, 1957], No. 9064/57. Class 40(6). In a two state transistor circuit comprising a transistor which has a low impedance in a first, unstable state of the circuit and a high impedance during a second state and having a storage device connected to an electrode thereof for determining the duration of the unstable state, variations in said duration due to variations with temperature of the leakage current to said electrode are reduced by connecting the load impedance of the electrode to a tap of a potentiometer having a temperaturue dependent arm. The Figure shows a mono-stable flip-flop circuit in which transistor Tl is non-conducting in the stable state and T2 non-conducting in the unstable state. Variations of temperature cause variations in the leakage current of transistor T1 during the stable state and this would normally vary the voltage across capacitor C1 and thus the duration of the unstable state of the circuit. To compensate for this the upper end of load resistor R1 is connected to a potentiometer TR1, R6 the upper arm of one which is temperature sensitive so that the collector potential of transistor T1, remains constant. Variations in sensitivity of the circuit with the variations in temperature may be compensated by means of a further temperature dependent resistor TR2. It is stated that the invention is also applicable to free running multi-state circuits.
Patent GB-721483-A (GB)
Title: Improvements in or relating to pressure fluid distributor valves
IPC: F15B9/16
Filed: 1948-01-21
Abstract: 721,483. Valves. OLAER MARINE. Jan. 21, 1948 [Jan 22, 1947], No.9117/52. Divided out of 721,431. Class 135. A distributer valve having a easing 1, Fig. 1, divided by a partition 2 having an axial bore 3 into first and second chambers 4, 5 and exhaust, motor and supply ports 32, 31, 30, opening into the first chamber, the second chamber and the bore respectively, houses self-aligned valve members 20, 21 such that the valve member 21 in the form of a cap is slidable on and solely guided by the valve member 20. A spring-loaded plunger 28 normally urges the valve member 21 into seating engagement with the valve member 20 and unseats a head 23 formed on the valve member. On an increase in pressure in the motor port 31, the head 23 is first urged towards its seat to cut communication between the supply and motor ports and then on further increase in pressure the cap 21 is unseated against the spring of the plunger 28 to connect the motor port to exhaust. In another embodiment, two such distributer valves D1, D2, Fig. 2, are mounted side by side in a single easing to control the supply and exhaust of pressure liquid to and from a motor M. In this ease, the cap member 43 of the valve D1 is engageable with a manuallyactuated plunger 39 and the cap member 45 of the valve D2 by a plunger 52 slidable in a chamber 57 and subjected on one face to the pressure of a spring 56. The chamber 57 is connected by ducts 53, 54, 55 to the chamber 38 of the valve D1. Springs 50, 51 urge the heads 42, 44 of the valves D1, D2 respectively towards their seats. On anticlockwise movement of a lever 40 the plunger 39 is moved leftwards and pressure in a line 47 connected to the left-hand side of the motor unseats the cap 43 and connects that side of the motor together with the chamber 57 to exhaust through a line 49. The spring 56 then moves the plunger 52 rightwards to seat the cap member 45 and unseat the head 44 to connect a supply line 46 to a line 48 connected to the right-hand side of the motor. Conversely on clockwise movement of the lever 40 the lefthand side of the motor is opened to pressure and its right-hand side to exhaust. The Specification as open to inspection under Sect. 91 comprises also a manually-actuated distributer valve, Fig. 1 (Cancelled), in which the cap member 9 is in part guided in the valve casing 1. A plunger 17 engageable by the operating lever 13 and connected by a line 16 to a chamber 1a in the valve casing is subjected to the pressure in the motor port 18 to pressure balance rightward movement of the valve members 4, 9. This subject-matter does not appear in the Specification as accepted.
Patent GB-241107-A (GB)
Title: Apparatus for observing and continuously measuring variable high hydraulic or other pressures
IPC: G01L23/00
Filed: 1925-04-07
Abstract: 241,107. Marks, E. C. R., (Schneider et Cie.). April 7, 1925. Physical or molecular structure, altering by mechanical treatment.-Apparatus for controlling hooping effects in tubes such as those used for guns by measuring the high fluid pressures involved comprises a tube formed of metal having a high elastic limit and of relatively small diameter, the ends of which are fixed in the ends of a cylindrical casing, the deformation of the inner tube being transmitted through liquid contained in the annular space between the tubes to an indicating column of liquid. The tube A of high elasticity is mounted in the ends of a cylinder B. A pipe C conveying the high-pressure fluid opens into one of these ends and a pipe D, which may be closed by a plug if desired conveys the fluid away from the other end to a place for its utilization. An indicating tube E opens into the annular space b between the tube A and the cylinder, the space b and tube E containing indicating liquid. The quantity of liquid contained in the annular space b may be varied by moving an annular diaphragm F comprising rubber washers which may be squeezed together by the plates F<1>, F<2> when rods G, G are turned. The diaphragm may be moved as a whole by rotating a screwed sleeve I. The level of liquid in the tube e may be read against curves J plotted on a board which may be moved across the tube by screw K<1> according to a scale K corresponding with the adjustment of the diaphragm F. In applying the invention to the hooping of tubes, the tube to be treated is mounted at the ends and the pipe D communicates with one end. The board on which the indicator is mounted is also in this case provided with a series of tubes leading to little bellows devices contacting at different points along the length of the tube and containing indicating fluid. The deformation of the tube at these points is thus indicated and such devices may be combined with contact devices in electric circuit with lamps for giving a visible signal at certain predetermined deformation. In a modification, the tube A is butt-ended.
Patent GB-1300812-A (GB)
Title: Concrete joints
Inventor: HURST JOHN
IPC: E04B1/68
Filed: 1969-02-20
Abstract: 1300812 Expansion joints W R GRACE & CO 18 May 1970 [20 Feb 1969] 9362/69 Heading E1B A joint between two separately cast concrete bodies having common reinforcement 4 and a waterstop 1 is defined by a resilient shuttering strip 2 having deformable projections 10 and 11 on opposite faces, the projection 10 mating with deformable projections at the centre of the waterstop and the projections 11 with a shuttering board 3. The board 3 or the strip 2 having recesses in its edge to accommodate the reinforcing rods 4. The shuttering strip may have a laterally projecting flange to prevent concrete seeping through the joints around the reinforcement and between the board and the strip from falling into the trough between the innermost keying projection on the waterstop and the strip. The strip may be removed after the first mass of concrete has set or be left in the joint.
Patent GB-1003069-A (GB)
Title: Refractory arch furnace roof
IPC: F27B3/16
Filed: 1963-03-08
Abstract: 1,003,069. Suspended furnace roofs. CORHART REFRACTORIES COMPANY. March 8, 1963 [March 8, 1962], No. 9397/63. Heading F4B. The roof of an open hearth furnace is formed of rows of basic rib bricks 20 partially supported by skewbacks 13, and partly by hangers 27 from beams 25 and separated by two rows of filler bricks 21, limited upward and downward movement of the beams 25 being allowed by sleeve jacks 41-47 through transverse beams 30 fastened to said beams 25 as by straps 31. The sleeve jacks comprise tubular members 51 sliding within sleeves 52 mounted on the girders 10, the upper and lower movement respectively denoted by X and Y, Fig. 2, being defined by bolts 57 and 58. These movements preserve the smooth contour of the roof while allowing for the expansion and contraction of the roof bricks caused by changes in their temperature and vary from a maximum with the central sleeve jack 44 to a minimum with the outer sleeve jacks 41 and 47. In a modification, Figs. 7-9 (not shown), all the bricks are of the same length and plates are disposed between bricks at intervals of every fifth joint in a pair of brick rows spaced apart by another brick row, said plates having an upward extension engaging the beams 25. Specification 724,980 is referred to.
Patent GB-715850-A (GB)
Title: Hydrofoil system for hydroplanes
IPC: B63B1/24
Filed: 1952-04-15
Abstract: 715,850. Hydrafoil craft. SUPRAMAR AKT.- GES. April 15, 1952 [April 16, 1951], No. 9421/52. Class 113(2) In a hydroplane 1 having two hydrofoils 3, 4, in tandem and each loaded with a portion of the weight of the hydroplane, which hydrofoils produce stabilizing forces by the action of vanes which are inclined in a plane or planes disposed transversely to the direction of travel of the hydroplane and which, when the latter is travelling at full speed, lift it at least partly out of the water, the fore hydrofoil 3 has emerging vane portions 31 which extend up to the planing bottom 2 of the hull and exert a lift that increases more rapidly than the lift exerted by the aft hydrofoil 4 so that the fore hydrofoil is above the water line at maximum speed, while the aft hydrofoil, which operates to maintain the trim of the hydroplane, is constructed so as to be more sensitive than the fore hydrofoil to changes in the angle of attack. and has its surface parts arranged so that at most only a fraction 41 of their surface areas emerge and so that they reach a lower height above the wake line a than the corresponding surface parts of the fore hydrofoil. The aft hydrofoil may remain fully submerged as in Fig. 6, or be shaped as in Fig. 7a, having end plates 6. The fore hydrofoils may have fins or plates 11.
Patent GB-1062132-A (GB)
Title: Programmed article handling
Inventor: DEVOL GEORGE CHARLES
IPC: B25J9/16
Filed: 1965-03-05
Abstract: 1,062,132. Work transfer; extracting and treating castings. UNIMATION Inc. March 5, 1965, No. 9456/65. Headings B3B and B3F. [Also in Divisions B8 and G3] A mechanical handling arrangement comprises a rotatably supported vertical post at the top of which is an angularly mounted arm having an extensible member carrying a pair of co-operating jaws for gripping an article to be moved. The movements of the arrangement are effected by a memory-controlled hydraulic servo-system. As shown, for movement only, the servo-system comprises an hydraulic actuator 18 positioning an arm 24, carrying jaws, not shown, which is controlled by a master valve 22. Feedback is derived through a cable arrangement 44, 46, 48, 50, 52 the movement ratio being determined by the stepped pulley 46, or in a modification, by gearing. A spool 22c of the master valve 22 is displaced by an interposer 66 co-operating with a drum type programming arrangement, on a shaft 106, having a plurality of rubber gripped pins 56 which are axially displaced to determine through the valve 22 the travel of the actuator 18. The shaft 106 is stepped by an electromagnet 110 co-operating with a ratchet and pawl 110c- 110d. The shaft 106 also carries a magnetic programme store 112 from which electrical signals determining the actuation of the jaws and associated operations are read by heads 116. The programming of the drum is effected by rotating an axially restrained nut 94 by a motor 98 to displace a shaft 92. Subsequently the Straightening of a toggle 88, 86 by an electromagnet 100 causes the interposer 66 to effect a corresponding displacement of the pins 56. The associated operations, including those for the jaws, are recorded on the store 112 through record heads 118 brought into position by rotation of a shaft 114. Hydraulic actuators for other movements are controlled by similar servo systems responsive to drums, such as 58<SP>1</SP> arranged on the shaft 106. In a modification, the pins 56 are threaded and screwed into the drum. The programming is then effected by a motor-driven arrangement, Fig. 5, not shown. In another embodiment, Fig. 11, not shown, the displacement of the master hydraulic valve is effected by the selective actuation of a plurality of hydraulic incremental elements through solenoid valves programmed by contact feelers sensing holes in a perforated sheet resting on a conductive roller. The sheet is perforated in accordance with a programme from a discencoder selectively energizing paper punches. It is stated that the co-operating jaws may be programmed to grip a casting in a die-casting machine, lift the casting out of the machine, dip the casting into a tank of quenching liquid, move the casting to a trimming press, drill press or riveting machine and thereafter transport the casting through cleaning and painting stations to a finished part conveyer or bin. Fig. 3, not shown, shows the operation of a punch.
Patent GB-976405-A (GB)
Title: Metallic swimming pool
IPC: E04H4/00
Filed: 1962-03-12
Abstract: 976,405. Swimming baths. VEREINIGTE METALLWERKE RANSHOFEN-BERNDORF A.G. March 12, 1962 [March 10, 1961], No. 9458/62. Heading A4N. In an all-metal welded swimming bath construction, the base is of flat welded sheets 18 and the sides 1 are corrugated. The base welds are covered by flat metal bars 18a. Sheets 1 and 18 are welded to the base of an inverted U-section member 15 which is anchored in a concrete footing. A metal surround is welded to the upper edges of sheets 1 and may have a non-slip coating, projections or corrugations on its upper surface.
Patent GB-700281-A (GB)
Title: Improvements in or relating to toys
IPC: A63H3/48
Filed: 1952-04-16
Abstract: 700,281. Toy figures. COLMAN, Ltd., C.. and COLEMAN, R. S. July 22, 1952 [April 16, 1952], No. 9519/52. Class 132(3) A toy figure is divided transversely into two parts 2, 3 which are connected together by a wheel 4 rotatably mounted in one part 2 and having a plurality of spokes 20 engaging an undercut socket member in the other part, adapted to receive the spokes so that, on rotation of the wheel, e.g. by a blade being passed through the body of the figure, one at least of the spokes is always in engagement with the socket. As shown, Fig. 2, wheel 4 is freely mounted on a spindle 6 in a carrier 7 slidably mounted in a recess 8 in part 2. The carrier 7 is mounted at one end of a rod 9 on to whose other end is threaded a nut 11 joining an abutment for a compression spring 12. Alternatively an arrangement including a tension spring 16 may be used, Fig. 8. The wheel preferably has three spokes 20, undercut to form flanges 22, between which are gaps 21. Socket member 5 is mounted in a recess 24 in part 3 and comprises an under cut groove 25 to fit the flanges of the spokes 20.
Patent GB-289620-A (GB)
Title: Improvements in and relating to electric lamp holders
IPC: H01R33/46
Filed: 1927-04-07
Abstract: 289,620. Hawker, G. W. April 7, 1927. Holders comprise a cylindrical shell a adapted to receive the bulb cap and having an inturned flange b at its upper end, a terminalcarrying block d, and a hollow cap m fitting above the block and having a shoulder n at its lower end, the block and cap being adapted to be inserted into the shell until the shoulder n engages the flange b and to be retained by a removable pin or screw q passing through the shell into the body member. The pin may project so far at both ends that it may serve to support a shade. The cap m and the block d may be secured together by a screw t the head of which engages in a groove in the flange b to obtain the correct relative position of the parts to register the holes to receive the pin q. The supply wires are passed through holes in an insulating wall h between the terminals before passing to the terminals, and wings j project from the wall to prevent contact between the wires. The body and the cap of the holder may be of metal or of insulating material.
Patent GB-759952-A (GB)
Title: Improvements in liquid pumps and non-return valves therefor
IPC: F04B9/14
Filed: 1954-04-01
Abstract: 759,952. Liquid dispensing apparatus. FRANCIS, E. M. March 16,1955 [April 1, 1954], No. 9588/54. Class 102(2). A pump comprises a non-deformable liquid chamber 1 inlet and outlet conduits 7, 5 with valves 17, 10 and a connection 26 to a deformable bulb 25. The valve 10 comprises a rubber tube secured at one end to the conduit 5 and having a flattened free end 14. A rubber disc 28 secured to the body 1 supports the pump in a vessel 30. The inlet valve may be of the same construction as the outlet valve shown.
Patent GB-946962-A (GB)
Title: Improvements in or relating to carbon black
IPC: C09C1/50
Filed: 1961-03-16
Abstract: <PICT:0946962/C1/1> In a process for producing carbon black, hydrocarbon fuel is introduced through conduit 18 and air or oxygen through conduit 16. The mixture is ignited and the resultant combustion mass proceeds through chamber 5 until it meets hydrocarbon feedstock introduced through conduit 12 and air introduced through conduit 14.  The turbulent mixture then passes to reaction zone 3 where the hydrocarbon feedstock is decomposed to form carbon black.
Patent GB-432745-A (GB)
Title: Improvements relating to submersible pumping apparatus
IPC: F04D13/08
Filed: 1934-03-28
Abstract: 432,745. Centrifugal pumps. TANGYES, Ltd., and WILKS, B., Cornwall Works, Smethwick, Birmingham. March 28, 1934, No. 9666. Drawings to Specification. [Class 110 (i)] The compressed - air supply of the air chamber, of a deep well pumping unit is regulated by a float controlled valve in which a rod transmits the motion from the float to the valve. The air chamber is arranged wholly between the motor and the pump. Specification 421,214 is referred to.
Patent GB-506949-A (GB)
Title: Method of manufacturing porous building materials
IPC: C04B28/02
Filed: 1938-03-30
Abstract: 506,949. Porous compositions; composite blocks. MIGLIAVACCA, P. March 30, 1938, No. 9679. Drawings to Specification. [Class 70] [Also in Group X] Porous building-materials are made by agitating or mixing hydraulic cement and water in the presence of an alcoholic solution of colophony and a solution of strong glue while air or gas is injected through holes in the bottom of the mixing vessel. Alternatively air or gas may be injected into a mixture of strong glue and alcoholic solution of colophony whilst agitating it by means of beaters or mixers, and the hydraulic binder subsequently added. Sand, powdered pumice, slate or cork, hydrated lime, and solutions of bitumen may also be added. The frothed mixture may be cast in moulds which may be lined with bricks which combine with the porous mass to produce composite blocks.
Patent GB-1138474-A (GB)
Title: Flame retardant polyurethane compositions
IPC: C08L75/04
Filed: 1966-03-07
Abstract: 1,138,474. Polyvinylidene fluoride compositions; polyurethane compositions. RAYCHEM CORP. 7 March, 1966 [8 March, 1965], No. 9767/66. Headings C3P and C3R. A flame retardant system comprises (1) polyvinylidene fluoride, (2) antimony oxide and (3) a compound of an element which is capable of catalysing the dehydrofluorination of polyvinylidene fluoride at a temperature lower than would occur in the absence of said compound. Component (3) may be an aluminium, titanium, zirconium, hafnium, niobium, tantalum, tungsten, boron, chromium, nickel or molybdenum compound, particularly their oxides. In a modification of the system component (2) is omitted and component 3 is an aluminium compound. The system may be incorporated into a polyurethane composition.
Patent GB-675963-A (GB)
Title: Improvements relating to frictional gearings
Inventor: SCHOTTLER HENRY
IPC: F16H15/50
Filed: 1949-04-11
Abstract: 675,963. Variable-speed gearing. ROLLER GEAR CORPORATION. April 11, 1949, No. 9792/49. Class 80 (ii). In a variable-speed friction gearing applicable to machine tool or vehicle drives, torqueresponsive traction pressure is provided for planetary bodies 8 radially displaceably mounted in a carrier 9 and rolling between a fixed or uniformly rotated outer member 6 and a rotatable inner member 5, the members 5, 6, being conical bodies having curved, preferably circularly arcuate generators, and the arrangement being such that at the points of contact of any given body 8 with the members 5, 6 the tangents co-planar with the main gearing axis always make equal angles therewith. As shown, the arrangement is duplicated so that both over and under drives may be transmitted between a driving inner member 5 welded or otherwise fast on an input shaft 3 and a driven inner member 28 similarly fast with an output shaft 4. Rotatably' fixed reaction outer members 6, 27 are rigid with a bushing 7 axially slidable in the gear casing under the action of a pinion 29 to vary the speed ratio. The planets 8, 26 may be balls or conical bodies having curved, preferably circularly arcuate, generators, and are rotatably mounted in bearing cups 10 slidable radially on guides 11 positioned in relatively slidable carriers 9, 17 held mutually rotatively rigid but pressed axially apart by camming balls 23 acting between concave discs 19, 20 mounted in the carriers. Springs 24 provide initial contact pressure. The carriers 9, 17 are freely supported in the bushing 7 by a guide ring 15. Where co-acting inner and outer members and planetary bodies have circularly arcuate generators, the radius of curvature of the generator of the inner member may be equal to that of the generator of the outer member plus twice that of the generator of a planetary body.
Patent GB-265425-A (GB)
Title: Improvements in and relating to surgical and other knives, razors, corn cutting instruments and the like having detachable blades
IPC: A61B17/32
Filed: 1926-04-14
Abstract: 265,425. Sobel, H. J. G. April 14, 1926. Fixing by grooved members. - A surgical or other knife or razor with detachable blade is arranged so that the blade 7 may be affixed to the handle 1 with a simple push-on movement. The edges of the tang 6 enter grooved guides 4, 5 and the blade is held against accidental removal by a stud on the handle snapping into a recess 8 in the tang, or by an inclined surface 11 on the handle, Fig. 6, which flexes the tang and retains the blade frictionally.