baber/WOPTO huggingface dataset:
Patent GB-597169-A (GB)
Title: Improved method of preparing aluminium phosphates
IPC: C01B25/46
Filed: 1945-03-15
Abstract: Soluble solid aluminium phosphates are produced by mixing and reacting separate dispersions in an inert aqueous liquid, of finely divided aluminium hydroxide (A12O33H2O) and finely divided phosphorus pentoxide or phosphoric acid in proportions to yield an Al to PO4 ratio of 1/3 to 2/3 , controlling the water content of the reactants and the loss of water by evaporation being controlled to yield a product having a water content ranging from zero for a 1 : 3 ratio, to over 25 per cent. by weight for a 1 1/2 : 3 ratio, and to about 35 per cent. for the 2 : 3 ratio, and separating. Dispersion and mixing may be aided by agitation and promoters, e.g., oleic or other fatty acid.  Sufficient inert liquid, e.g., light hydrocarbons, kerosene, toluene, xylene, heavy gasoline fractions &c. is used to absorb the heat of reaction and prevent the temperature rising beyond any desired limits, e.g., 160-180 DEG F. The product separates as a heterogeneous phase which cools to a resinous conchoidal glass. Continuous or batch operation is feasible.  Examples describe the preparation of mono, Al (H2PO4)3, sesqui, and di, Al2 (HPO4)3 aluminium phosphates.  A chart shows variations of properties with composition and water content.  The products are useful in binders.
Patent GB-412154-A (GB)
Title: Improvements in or relating to electron discharge device oscillation generators
IPC: H03B19/08
Filed: 1934-03-01
Abstract: 412,154. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Whitaker, J. N. ; 95, Highland Avenue, Tuckahoe, New York, U.S.A.) March 1, 1934, No. 6639. Convention date, March 1, 1933. [Class 40 (v).] An harmonic or sub-harmonic frequency generator comprises a dynatron oscillator with an input circuit supplied with a fundamental frequency and an output circuit tuned to a desired harmonic or sub-harmonic. As shown, the input is applied from a source 3 through a transformer 4 to the control grid circuit 5 of a screen-grid valve 1 operating as a dynatron. The plate circuit is tuned by a circuit 7, 8 to the desired harmonic or sub-harmonic, and is coupled through a condenser K to the input grid circuit of a second dynatron 2. The plate circuit of this valve is tuned by a circuit 11, 12, and the condensers 8, 12 may be ganged. One valve only may be used, but preferably the first valve is used for effecting the frequency change, and the second for restoring the wave to sine form. Alternatively, one valve may be used for frequency multiplication, and the other for frequency reduction. In this way a large number of harmonically-related tone frequencies may be produced for use as carriers in facsimile or other high-speed telegraphy.
Patent GB-819685-A (GB)
Title: Duct for the flow of fluids therethrough
IPC: F23R3/24
Filed: 1957-02-27
Abstract: 819,685. Boundary layer control. UNITED AIRCRAFT CORPORATION. Feb. 27, 1957 [Feb. 29, 1956], No. 6643/57. Class 4. [Also in Group XII] A fluid flow duct has within it a hollow chamber formed of outer walls that diverge in a downstream direction and inner walls spaced from the outer walls, the chamber being closed on its downstream side and open on its upstream side, the outer walls having perforations to modify the boundary layer flow along the outer surfaces of the outer walls. Fig. 2 shows the flameholder 30 of the reheat section of a turbo-jet power plant, comprising divergent walls 40, 42 forming a chamber 50 with porous walls 44 and end walls 46, 48. An opening 52 in the chamber communicates with a pipe 60, fed with air bled from the compressor or a combustible mixture, which energizes the boundary layer on walls 44. Hydrogen may be injected through a pipe 61. Alternatively, pipe 60 may be used to suck the boundary layer from walls 44. In another embodiment, the opening 52 is open to the ram pressure in the reheat duct which raises the pressure inside chamber 50 and causes a flow through walls 44 to energize the boundary layer. The flameholder may be a transverse bar extending across the reheat section, or may be two concentric rings of V-section, Fig. 1 (not shown).
Patent GB-1271043-A (GB)
Title: Tape-winding machine
IPC: G11B23/113
Filed: 1970-07-27
Abstract: 1,271,043. Splicing record tapes. KING INSTRUMENT CORP. 27 July, 1970 [9 Feb., 1970], No. 6683/71. Divided out of 1,271,042. Heading G5R. [Also in Divisions G2-G3] A length of leader tape (secured, as shown, to the two spools of a cassette 2 which is to be loaded with tape or film) is cut into two leaders on a splicing head formed by a fixed support 54 and a first pivoted support 72 which is then swung away carrying one of the leaders and replaced by a second pivoted support 70 carrying the leading end of the record tape or film 20; this and the remaining leader are joined by splicing-tape and wound on to the take-up spool. When a selected length of tape or film 20 has been wound, the drive is stopped and the tape or film 20 is severed on the splicing head formed by the fixed support 54 and the second pivoted support 70 which is then swung away to be replaced by the first pivoted support 72 carrying the other leader which is then spliced to the trailing end of the tape or film 20 held on the fixed support 54. The various tapes or films are held on the supports 54, 70, 72 by pneumatic suction, and the sequence of mechanical operations is effected by pneumatic actuators under the control of cams (281 to 290, Fig. 9, not shown) driven by an electric motor (276). The tape or film transport and the splicing-tape dispenser are disclosed in Specifications 1,271,042 and 1,271,044 respectively.
Patent GB-1178981-A (GB)
Title: Improvements relating to the continuous casting of metals
Inventor: PARFIT RAYMOND HENRY
IPC: B22D11/128
Filed: 1966-02-15
Abstract: 1,178,981. Toothed gearing. CAMPBELL GIFFORD & MORTON Ltd. 7 March, 1967 [15 Feb., 1966], No. 6690/66. Heading F2Q. [Also in Division B3] At least one pin 35 on a driving wheel 36 co-operates with radial or curved slots 34 in. a wheel 33 to drive intermittently a shaft 30 by which extraction rolls for a continuous casting (see Division B3) are driven. To lock the driven wheel 33 during dwell periods, a moon-shaped disc 45, mounted for rotation with the driving wheel 36, slides into peripheral recesses 46.
Patent GB-110706-A (GB)
Title: Improvements in Life Rafts.
Inventor: MYERS LORING WILLIS
IPC: B63C9/02
Filed: 1917-05-15
Abstract: 110,706. Myers, L. W. May 15, 1917. Rafts.- Longitudinal and transverse boards 2, 3 respectively, slotted at 4, Fig. 3, so as to interlock, form a cellular structure to which sides 6 stiffened by plates 8 and top and bottom boards 9 are ap plied. The central longitudinal board 2<1> is extended to form projections 5 to which the sides 6 and plates 8 are riveted. The sides extend beyond the boards 9 and are perforated to receive flexible members 11 laced, as shown. Floats 12, comprising blocks of solid buoyant material or hollow tanks, are fitted and provision is made for carrying food, masts, oars, &c.
Patent GB-837363-A (GB)
Title: Apparatus for the separation of substances dissolved in a liquid
IPC: G01N30/56
Filed: 1958-03-06
Abstract: Apparatus for the separation of substances dissolved in a liquid comprising a column of a sorption agent and means for supplying liquid to one of the columns and withdrawing liquid from the other end of the column, characterized in that a surface of the column which is parallel with the direction of the liquid flow is covered by a liquid-tight casing which is arranged to be elastically pressed against the sorption agent with a pressure that is substantially independent of such variations in the diameter of the column as are due to the swelling and shrinking of the sorption agent under the action of the liquid flowing through the column.  The liquid-tight casing may be surrounded by or consist of a resilient casing, for instance of rubber, which owing to its own tension presses the liquid-tight casing against the sorption agent with a substantially constant pressure or the surface of the column which is parallel with the direction of the liquid flow is surrounded by a closed chamber into which a pressure medium may be introduced.
Patent GB-566869-A (GB)
Title: Improved applicator for tampons
IPC: A61F13/26
Filed: 1943-05-07
Abstract: 566,869. Tampon introducers. JOHNSON & JOHNSON (GT. BRITAIN), Ltd. May 7, 1943, No. 7258. Convention date, May 8, 1942. [Class 81 (ii)] A tampon container and introducer or applicator comprises a substantially cylindrical body of crushable and disposable material adapted to receive a tampon, one end of the body retaining its substantially cylindrical form and serving as a holder and applicator for the tampon, the remaining portion of the body being scored longitudinally, or having a spaced longitudinal score line and a slot to facilitate inward folding of a part of the body into position to engage the inner end of a partially projected tampon and prevent its return movement into the applicator body for containing the tampon having means, e.g. the withdrawal cord, for projecting it from one end of the body and means on the body movable to a position to be engaged by the draw end of the tampon which is thus held in its projected position in the tampon during the application of the latter. As shown, the tubular body 2, Fig. 1, has an opening 4 through which the end 5 of the withdrawal cord 6 projects, and after the tampon 3 has been projected from the body by the cord 6, the body portion 8 below the edge 12 of the opening 4 is collapsed inwards, Fig. 3, along score lines 9, 10, 11 so that the edge 12 engages the inner end of the tampon. The upper edge 7 of the opening 4 is engaged by the cord 6 to limit the projection of the tampon. In another form, the cord projects through a slot in the body leading to a longitudinal slot and when the tampon has been projected, the portion of the body adjacent the slots is collapsed inwards along a longitudinal score.
Patent GB-544303-A (GB)
Title: Improvements in electric circuit breakers of the liquid blast type
IPC: H01H33/98
Filed: 1941-06-09
Abstract: 544,303. Liquid-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 9, 1941, No. 7278. Convention date, June 8, 1940. [Class 38 (v)] A liquid-b last switch employing a pressure - generating arc for setting up a blast-pressure for extinguishing a main arc in series with it, as in Specification' 364,031, and provided with magnetic means as in Specification 479,621 for deflecting and lengthening the arc according as to whether the current to be interrupted is small or large, has conducting means connected to one or both of the pressuregenerating arcing- members for causing lengthening or shortening of the arc by moving in opposite directions thus ensuring proper pressure conditions for all current-values and enabling the device to employ water, for example, as the liquid. The baffle 4 divides the container into a lower, pressure-generating, part, and an upper, quenching part, the blast passage 9 being normal to the plane of the drawing. Conducting gates 6 hinged at 7 are urged by the springs 8 into the position shown when the movable contact 3 is withdrawn, so transferring the arc to those gates. The fixed contact 2 is surrounded by an are-taking contact-member 2<SP>1</SP> having an offset sloping part 26 for receiving an arc such as I 1 , and on the opposite side, a plane conducting surface 28 below and parallel to an arcrunner 27 formed on one of the gates 6, for receiving an arc such as I 2 . Embedded in an insulating disc 16 is a laminated iron core 17 of the configuration shown in Fig. 2, having a readily-saturable part 19 and parts 20 of larger cross-section defining slots 18<SP>1</SP>, 18<SP>11</SP>, respectively, on opposite sides of the contact-opening 18. At low currents the part 19 is not saturated and the arc is drawn into slot 18<SP>1</SP> and, due to slope 26, lengthened. At large currents, however, when 19 gets saturated, the arc is forced into slot 18" and due to arc-runner 27, shortened: A barrier 31 is placed at the top of the annular space 30 to equate the pressures inside and outside the baffle 4 and obviate the risk of its bursting.
Patent GB-712783-A (GB)
Title: Improvements in devices for supporting bearings from casings
IPC: F01D25/16
Filed: 1952-03-21
Abstract: 712,783. Bearings. GENERAL MOTORS CORPORATION. March 21, 1952 [April 6, 1951], No. 7305/52. Class 12(1) A device for supporting a bearing 21 from a casing 17 comprises a plurality of struts 46 lying between a bearing mounting ring 23 and the corners of a rigid polygonal frame 50 held by the casing. The struts lie in a common transverse plane and are non-radially disposed so that changes in length of the struts resulting from changes in temperature preserves the axial disposition of the shaft. A shell 28 is disposed around the bearing and is supported from the casing 17 by hollow members 44 within which the struts 46 are slidable. Cooling air is supplied to the bearing through the struts 46, the tubular frame 50 and inlet manifolds 56. The air is exhausted through outlets 62 in the members 44. The invention is applied to a gas turbine engine.
Patent GB-775450-A (GB)
Title: Improvements relating to electric automatic circuit breakers
Inventor: GOUGH ERNEST
IPC: H01H71/74
Filed: 1954-03-17
Abstract: 775,450. Automatic circuit breakers; switches held set and freed mechanically. WALSALL CONDUITS, Ltd. March 14, 1955 [March 17, 1954], No. 7307/55. Divided out of 775,449. Class 38(5)  The circuit-breaker described is that of Specification 775,449, but the claims differ. Specification 775,451 also is referred to.
Patent GB-1212397-A (GB)
Title: Clutch mechanism
Inventor: HENSHAW ROBERT WARREN
IPC: F41A9/30
Filed: 1968-02-14
Abstract: 1,212,397. Clutch/brake combination; positive clutch. GENERAL ELECTRIC CO. 14 Feb., 1968 [12 May, 1967], No. 7330/68. Headings F2C and F2L. [Also in Division F3] A clutch/brake combination in the drive from an externally driven gear-wheel 12a to the drive shaft 30 of a feed mechanism 20 feeding cartridges from a belt to the motor 12 of a machine gun having trackways 16 and also driven by wheel 12a, comprises an input gear-wheel 62 meshing wheel 12a and carrying lugs 76 engaging lugs 86 on a hub 78 axially slidable on, but rotatably fast with, the shaft 30, to drive the feed mechanism 20, axial movement of hub 78 away from the wheel 62 disengaging the clutch and engaging the lugs 86 with stops 46 on a fixed plate 40 to positively stop the shaft 30, and hence the feed mechanism, in a predetermined position relative to the rotor 12, a knife edge 86b on each lug 86 engaging a fixed knife edge 57a on being moved to the right, as shown by a spring 92, to positively direct the lugs 86 against the lugs 46. Cam surfaces 50 leading from lugs 46 ensure that lugs 86 remain in driven engagement with the lugs 76 until immediately prior to engagement with lugs 46, when the lugs 86 are moved into cutouts 52, to maintain the relative orientation between rotor 12 and shaft 30. The hub 78 is moved to the left against the spring 92 to engage the clutch by a trigger plate 104 abutting the hub and actuated by a solenoid 96 through rods 98, 101. Again, the hub 78 could be extended through the gear-wheel 63 and formed with a pattial slot to allow it to be contacted and reciprocated from the left (not further described).
Patent GB-1017380-A (GB)
Title: Safety device for missiles
IPC: F42C15/24
Filed: 1964-02-21
Abstract: 1,017,380. Projectile fuzes. LES FORGES DE ZEEBRUGGE S.A. Feb. 21, 1964 [Feb. 21, 1963; Feb. 12, 1964], No. 7382/64. Heading F3A. An arming device for a projectile or missile fuze comprises a primer charge located in a carrier which is permanently urged towards the firing position but is held in a safety position with the primer out of alignment with the firing pin by virtue of the firing pin engaging a channel in the carrier and a means for permitting movement of the carrier to the firing position in a step-by-step manner only. The arming device 7 consists of two circular cheeks 9, 10 (Fig. 2, not shown) with two shafts 14, 15, and a drum 16, loosely mounted on the shaft 14 having a curved face 17 with a toothed sector 18 and being constrained to rotate about the shaft 14 by a helical spring 22. The drum has a cylindrical hole 23, of diameter slightly larger than the 'firing pin 2, and a passage 24 containing a primer charge. A rocker 31 is loosely mounted on the shaft 15 and has two teeth 32, 33 to engage the toothed sector 18 and cause the drum 16 to turn with a step-by-step motion under the action of the spring 22. In the unarmed position rotation of the drum is prevented by the striking pin 2 engaging the hole 23. When the projectile is launched, the striker pin 2 is thrust further into the hole 23 by the acceleration forces and wedging, balls 4 move rearwards and away from the pin. As the acceleration decreases a spring 3 forces the striking pin 2 clear of the drum 16 which then rotates in co-operation with the rocker 31 until the passage 24 and priming charge are aligned with the striker pin 2. The rotation period of the drum is about 0À45 sec. In one embodiment the drum 16 is replaced by a pile of stamped-out plates, one of which incorporates the toothed sector 18. Another embodiment has the drum 16 driven by a spiral ribbon spring and the rocker 31 bears against a knife edge, while in a further embodiment, having a longer time period of rotation, the drum has a toothed rim which turns against a pinion and a toothed escapement wheel cooperating with two pins (instead of teeth) on the rocker to form the escapement mechanism; a counterbalance weight on the rocker counteracts vibration effects.
Patent GB-1095361-A (GB)
IPC: A61M60/258
Filed: 1965-02-19
Abstract: 1,095,361. Apparatus for assisting the heart. UNITED AIRCRAFT CORPORATION Feb. 19, 1965 [Feb. 26, 1964; Oct. 27, 1964], No. 7396/65. Heading A5R. [Also in Divisions F1 and G3] Apparatus used to assist the action of a defective heart by alternatively withdrawing and pumping blood through catheters communicating with the arteries, comprises a a hydraulically actuated pump (Figure 1) whose pumping cycle is controlled by a computing system responsive to the patient's heart action. The apparatus monitors the cardiac waveform and computes new pumping rates as the heart rate changes so that within set safety limits the volume of blood pumped is constant. The apparatus accommodates different numbers of catheters. As shown, the pump comprises a cylinder containing a working chamber 18 and an actuating chamber 19 separated by a free moving piston 17 and flexible diaphragms 20, 21. The piston is surrounded by saline solution introduced through a valve 28. The hydraulic actuator (Figure 3) for the pump is controlled by servo coils (147, 154) forming part of the control circuit (Figure 4, not shown) monitoring the heart, the coils moving valves in an assembly 91 so that fluid is directed through passages 96, 97 to either side of the actuator piston 92. A plunger 93 is connected to the piston 92 and moves fluid through a coupling 94 to actuate the pump. The actuator includes a transducer potentiometer 118 which feeds back to the control system the position of the pump and provides for error correction and reversing the direction of the pump. The apparatus includes a manual control and also an inlet 62 in the pump for adding extra fluids to the blood stream. If the patient's heart action is weak a pacemaker 132 (Figure 4, not shown) may be used to actuate the pumping cycle. Provision is also made for the pump to operate on only a selected fraction of the beats of the patient's heart.
Patent GB-947826-A (GB)
Title: Spinning or twisting machine
IPC: D01H1/16
Filed: 1962-02-27
Abstract: 947,826. Spinning frames; creels. J. J. KEYSER. Feb. 27, 1962 [Feb. 27, 1961], No. 7516/62. Headings DID and D1J. A spinning &c. machine has a cover extending in the longitudinally of the machine and upwardly to a position above the spindles and which supports spinning elements, such as thread guides, spinning rings and balloon restrictors, with or without the drafting elements. As shown, the cover comprises a series of plates 1 .. 4, Fig. 1, at each side of the machine, each corresponding in length to the spindle-rail sections, and each bent over at the top towards the opposite plate. Adjacent plates are clamped together by upper and lower rails at 18 with elastic material between them and opposite plates are joined by a rail 12 to form a cover. Each plate is strengthened by a stamped-out bead 5, a channel 6, and slits 7 with the stamped-out material turned inwards and corrugated plates 13, 14 are disposed between opposite plates. At positions corresponding to the spindle-positions apertures are provided at 8, 9 and in the channel; a bead with a scaling-strip 15 allows the space above the plate 13 to convey suction-air past apertures 8 which thus serve as end-catchers; the apertures 9 serve to support pivoted threadguides 35 Fig. 4 located in their operative positions by the up-turned sides 13<1> of the plates 13; spinning-rings are attached to the channels 6 which are provided with a sealed cover 11 to convey lubricant to the rings; the slits 7 support balloonrings 33, or balloon-separators 31 treated in the corrugations of the plates 13, 14, the rails 18 support the roller-frames of the drafting-mechanism, while the rail 12 carries creel-supports 38. In another form, Fig. 5 (not shown) each pair of opposite plates is replaced by a single plate of V-section along the crest of these plates are supported vertical drafting frames each serving both sides of the machine, the end catchers 8 now being disposed along the crest, and the creel supported by the top of the drafting-frame. The cover may rest on a box-structure 26 or it may be extended to ground level, the rails 18 thus serving also to carry the reciprocating spindlerails.
Patent GB-1096263-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B17/12
Filed: 1965-02-22
Abstract: 1,096,263. Automatic gramophones. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 22, 1965 [Feb. 24, 1964], No. 7542/65. Heading G5R. In an automatic gramophone of the type wherein the record diameter is sensed by inward movement of the pick-up arm until checked by the record, the inward movement is produced by a cam 46 on the cam disc 35 controlling the cycle, this cam acting on a lever 49 coupled by a spring 50 to a lever 48 which is rigidly secured to the shaft 20 to which the pickup arm is coupled. When inward movement of the pick-up arm is arrested the lever 49 can continue to move against the spring 50, but the lever 48 does not move, and a pin-shaped cam follower 47 on lever 48 enters one of the three cam tracks 53-55 according to the diameter of the record The transitional portions 60 of the cam tracks bring the stylus over the run-in groove of the record, and portion 61 maintains the stylus in this position until it is lowered on to the record by a further cam surface on the cam disc 35.
Patent GB-643061-A (GB)
Title: Improvements relating to rotary swaging or forging machines
IPC: B21J13/08
Filed: 1948-03-12
Abstract: 643,061. Forging-machines. SMITH, S. March 12, 1948, No. 7544. [Class 83 (iv)] The work feed for a rotary forging-machine comprises slides b running in channels on both sides of the machine bed a and carrying a gripper b<SP>4</SP> for the work d at one end, and operating mechanism c at the other end interposed between the bed of the machine and a transverse rail connecting the slides b. The operating mechanism for the slide may be a hydraulic, pneumatic, mechanical or other equivalent device.