baber/WOPTO huggingface dataset:
Patent GB-888638-A (GB)
Title: Process for the preparation of glass-making batches
IPC: C03C1/02
Filed: 1960-03-09
Abstract: 888,638. Glass manufacture. SOLVAY ET CIE. March 9, 1960 [April 2, 1959], No. 8257/60. Class 56. To maintain the moisture content of a glass making batch based on sand and sodium carbonate at a value that gives improved properties in storage and handling at and above 26‹C., there is added to every metric ton of batch at least 0.5 and preferably 1.0 to 5.5 kilogrammes of sodium chloride and also water in such quantity that the amount of water present exceeds that required to transform the sodium carbonate in the batch into sodium carbonate monohydrate, said excess being preferably 5 to 30 litres per metric ton. Preferably, for use at 33‹C., 30‹C. and 26‹C., respectively, the amounts of sodium chloride are 0.5, 1.3 and 1.8 kilogrammes respectively, the amounts for intermediate temperatures being calculated by interpolation.
Patent GB-705182-A (GB)
Title: A method and means for stopping the ends of pipes
Inventor: PETHERBRIDGE ROBERT HUGH SHUTT
IPC: F16L55/10
Filed: 1951-04-10
Abstract: 705,182. Stopping pipes. TATE PIPE LINING PROCESSES, Ltd. June 30, 1952 [April 10, 1951], No. 8259/51. Class 99 (2). A sleeve 12 having a tapered inner face 12a is pressed by a hydraulic jack, screw jack or other thrust means onto a resilient ring 14, e.g. a rubber ring of circular cross-section, to form a joint around the end of a pipe 13, and a closure plate is then secured to the open end of the sleeve, the thrust means, which may be located between a two-part ring 11 and a flange 15 of the sleeve, being removed after internal pressure has been applied to the plate.
Patent GB-353038-A (GB)
Title: Improvements in or relating to radio direction finding systems
IPC: G01S19/46
Filed: 1930-03-14
Abstract: 353,038. Electric signalling systems. EATON, W. S., 3323, Hollydale Drive, Los Angeles, U.S.A. March 14, 1930, No. 8310. Convention date, March 18, 1929. [Class 40 (i).] In a wireless direction-finder, the signals from the three aerials 131L, 132L, 133L are fed successively to a single receiver 149 whose output is diverted to the appropriate pairs of stator windings 134, 135 ; 136, 137 ; and 138, 139. The pointer W2 may be rotated mechanically by a knob 80, Fig. 6, and gearing 77, 78, to correct for the 180 ambiguity, the general direction of the station being known. The rotor M<2> is a cylinder whose wall thickness follows a cosine law which, it is stated, enables an equally divided scale to give direct readings of the direction of the incoming signal. Alternative forms of rotor to produce the same effect may be a solid cylinder cut away as at 98, 981, Fig. 8, or a cylinder of substantially oval cross section, Fig. 10, whose surfaces 99, 99<1> conform to a cosine curve. Further corrections may be introduced by forming the rotor in such a way as to compensate for the amplifier characteristics and the magnetization curve of the iron circuit. The system may be adapted to record the directions of more than one incoming signal simultaneously, a triple-indicator having rotors with co-axial shafts and a common dial being described (Figs. 12 and 13, not shown) together with the appropriate commutating arrangements. The indicator may be of the electrostatic type, the electromagnets being replaced by electrodes and this alternative is fully developed in the Specification (Figs. 15 to 23, not shown).
Patent GB-313905-A (GB)
Title: Mortise night latches
IPC: E05C1/16
Filed: 1928-03-19
Abstract: 313,905. Ellingson, E. March 19, 1928. Night-latches.-A latch bolt 14 is connected by a link 23 and a bar 22 to a sleeve 12 rigidly fixed to the handle shank 8. When the parts are assembled, the link 23 is inclined in the opposite direction to that in which it is turned for release, so that the bolt cannot be forced inwards by a tool. A cap 24 is fitted to the end of the handle shank and is connected to the bar 30 of the cylinder lock 6 in the outside of the door. A slot 27 in the cap works with a pin 26 on the shank so that the shank revolves in the cap for retracting the bolt from the inside, but revolves with it, after lost motion when the bolt is retracted by the lock 6.
Patent GB-854233-A (GB)
Title: An improved fluid suspension system for road vehicles
IPC: B62D53/04
Filed: 1959-03-11
Abstract: 854,233. Adjusting body height. GENERAL MOTORS CORPORATION. March 11, 1959 [March 27, 1958], No. 8383/59. Class 108(2). A vehicle suspension system which provides a constant clearance height has a manually operated valve 42, which overrides the automatic control of the clearance height of the suspension system. Compressed air from a reservoir 24 is admitted to or exhausted from air springs 8, 10 by levelling valves 38, 40. To. increase the clearance height of the vehicle, the manual valve 42 is operated to admit air from the reservoir 24 to two conduits 70, 72, via a conduit 68. When this occurs excess pressure in the conduits 70, 72 move freely-slidable pistons 80, 82 within Tee-junctions 56, 58 to the left and right respectively. Thus, the levelling valvesare rendered inoperative. Air is supplied to the air springs 8, 10 until the desired clearance height is obtained. When the valve 48 is moved back to the position shown in Fig. 2. air escapes from the springs via an outlet orifice 78 until the normal clearance height is attained, at which point pistons 80, 82 move to their original positions. The manually operated valve 42 may be adjusted so that both the inlet and exhaust ports are blocked. Thus, the increased clearance height of the vehicle may be retained for any desired period.
Patent GB-1167343-A (GB)
Title: Improvements in or relating to Electrical Heating Devices
Inventor: REIK HANUS
IPC: H05B3/06
Filed: 1966-02-25
Abstract: 1,167,343. Electric heating tapes. ISOPAD Ltd. 27 Feb., 1967 [25 Feb., 1966], No. 8425/66. Heading H5H. An electric surface heater comprises a flexible heating element 2 whose parallel emergent free ends pass through a body 3 of plastics material which is suitably moulded to fit tightly in a flame-proof gland 4. As shown, the parallel legs 2 of the heating element are contained in twin passages in a flexible plastics, e.g. P.V.C., F.E.P., P.T.F.E. or silicon rubber, tape 1. The body 3 is made of the same material as the tape and is heat shrunk on to the tape, and while still soft is inserted into the gland 4 so that it conforms to the bore in the gland. In an alternative arrangement the emergent ends of the heating element 2 are constituted by cold tails which are carried in twin bores of a plastics sheath. In this embodiment the body 3 is shrunk around the sheath for the cold tails and is moulded to the shape of gland 4 by insertion therein. The emergent cold tails are connected to the ends of the heating element by metal crimps and the joints are protected by a heat shrunk plastics sleeve. The inner ends of the heating element may be connected by a thermostat.
Patent GB-905734-A (GB)
Title: Improvements in or relating to the recovery of liquids adhering to solids
IPC: A61F13/02
Filed: 1961-03-08
Abstract: The liquid adhering to a solid such as a metal which has been treated with a liquid such as an acid, alkali, salt or phosphate solution, is recovered by suspending the solid in a column of ascending saturated steam which is enclosed by side walls and cooled above the solid.  In a continuous pickling and phosphating process for steel wire, the wire on leaving the pickling and phosphating bath is passed through an elongated container which has a cooler at the top and a steam jacket at the bottom to boil the water in the container.  The steam formed dissolves the acid and salt residues on the wire, collects in the bottom of the container and when the concentration of the solution is equal to that of the pickling bath it is transferred to the bath. Alternatively, the salts may first be crystallized out. Instead of using a separate steam generating container, the articles may be suspended over the pickling or phosphating bath in a frame and surrounded by a column of saturated steam produced by heating the treating bath.  The process may also be applied to the recovery of ammonium sulphate from filtered ferric hydroxide, the steam being generated by heating a part of the filtrate in a separate boiler.
Patent GB-810216-A (GB)
Title: Improvements in or relating to drier units applicable to refrigerating systems
Inventor: LINE RICHARD A
IPC: F25B43/00
Filed: 1956-03-19
Abstract: 810,216. Filters ; purifying liquids. ANSUL CHEMICAL CO. March 19, 1956, No. 8469/56. Class 46. [Also in Group XIII] Moisture is removed from a liquid refrigerant by passing the refrigerant through a unit comprising a fitting 3, Fig. 1, having inlet and outlet ports 2, 7, a connector element 6 having an inlet port 4 and a cartridge unit. The latter comprises a shell 18 housing foraminous screens 11, 15, a desiccant 14 (e.g. comminuted silica gel, activated alumina or calcium sulphate), a tube 13 and a spring 23, and is screwed onto the fitting 3 by a nut 21. The liquid passes to the space in the shell 18 below the screen 15 via ports 2, 4, the element 6 and the tube 12, whence it flows up through the desiccant to the outlet port 7 via a space 9 between the element 6 and the fitting 3. A glass window may be provided in the fitting over the element. To prevent interruption of liquid flow through the fitting when the cartridge is removed, a closure cap-which may have an observation windowis provided for screwing on to the fitting thread normally engaged by the nut 21. The drier shown in Fig. 5, has a shut-off valve and by-pass arrangement so that the cartridge unit may be replaced without stopping the liquid flow. An element 94 is slidable within the fitting such that its mild port 92 may be placed in or out of alignment with an inlet port 91, this movement being effected by fixing the element 94 to a valve plate 99 which is moved between valve seats 100 and 90 by rotation of a spindle 86 threaded at its lower end into a bush on the plate 99. A cap 96 normally prevents access to the spindle 86, Fig. 7, shows a filter, comprising a screen 55 housed in the shell 18, which is connected to the fitting when foreign matter is to be removed from the liquid.
Patent GB-291779-A (GB)
Title: Improvements in or relating to the magazines of automatic or self-loading small-arms
IPC: F41A9/83
Filed: 1928-03-20
Abstract: 291,779. Pedersen, J. D. June 9, 1927, [Convention date]. Drawings to Specification. Breech actions, sliding breech-block.-Relates to means for holding a cartridge clip by means of a latch in the magazine of the firearm against an ejecting device, and consists mainly in associating the latch with a bolt stop for holding the bolt in its rearward position in such a manner that the said bolt stop is rendered operative by the releasing movement of the latch so as to hold the bolt in its rearward position during the clip discharging operation. The latch is released automatically when the magazine is empty, or by hand-operated means. The invention is described as applied to a firearm having a togglelink breech mechanism and a firing mechanism as described in Specification 291,778. The receiver 2, as shown in Fig. 4 of Specification 291,778, to which reference should be made, has a vertical magazine chamber open at the top and closed at the bottom by a lid 11. A cartridge clip 136 (described in Specification 291,781) is inserted from above over a " follower " 159 (described in Specification 291, 780), and is held in the magazine against the upward thrust of an ejector 138 by a catch 132. This catch is pivoted on the receiver at 137 and has a tailpiece 132<c>, which lies in the path of the lever 163 of the " follower " mechanism. This lever swings upon a pivot 164 as the " follower " rises to feed the cartridges to the barrel after each shot. When the last cartridge is fired, the lever 163 bears on the tail 132<c> and deflects the catch 132, releasing the clip 136, which is ejected by the arm 138. This arm is pivoted at 139<1> and is urged upwards by a spring 142, which takes its abutment against a plunger 140<1> bearing on a pin 141 serving as hinge for the lid 11. The pleasure of the spring 142 on the hinge pin 141 holds the lid securely in place with its front end 144 in hooked engagement with the recover. The catch 132 has also an arm 134 coacting with a lever 130 pivoted at 129 and adapted to engage a bent 102 in the breech-block and hold the same in the open position when the catch 132 is deflected to release the cartridge clip. This deflection is performed automatically as above described, but may also be performed by a forward movement of the trigger 8 against a spring plunger 117. This movement of the trigger rocks a lever 115 in a clockwise direction round a pivot 116, and this depresses a bar 104 connected to the lever 115, which bar deflects the catch 132. Accidental release of the clip is prevented in two ways. The trigger 8 has a face 139, which is in contact with a correspondface of the crank 25 of the toggle-link mechanism of the breech and prevents any forward movement of the trigger so long as the breech is not fully opened; and the lever 130 bears against the lower face of the breech-block and prevents any deflection of the catch 132 so long as the breechblock is not fully retracted.
Patent GB-693255-A (GB)
Title: Improvements in or relating to carrier current transmission systems
Inventor: TERRONI TESEO BRUNO DANTE
IPC: H04B3/10
Filed: 1951-04-12
Abstract: 693,255. Automatic volume control. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. April 9, 1952 [April 12, 1951], No. 8508/51. Class 40 (iv). [Also in Group XL (c)] In a carrier current transmission system employing a pilot current for controlling the gain of amplifiers the gain-controlling circuits of the amplifiers include a thermionic tube amplifier, having one or more stages, which amplifies the pilot current input to the gain control device and in which the said one stage, or the final stage where there is more than one, operates on the rectified reaction principle, a relay being controlled by the anode current of the tube of said stage to actuate gain-stabilizing arrangements upon failure of the pilot current. As shown, the pilot current is tapped off from the output of amplifier AL by band-pass filter FP and is fed to the control grid of tube VA. The tapping on R2 is set so that in the absence of pilot, VA takes substantially no current. Presence of pilot causes VA to conduct and the A.C. component of the anode current induces an alternating voltage in the left-hand winding of TRB. The D.C. output of RB1 then produces a direct voltage across RI to drive the grid more positive. Relay PA is operated and held by the anode current. the A.C. component of which is rectified by RB2 and applied to the indirectly-heated thermistor TH to control the gain of the amplifior AL. As VA operates on the straight part of its characteristic the change of current in R4 is proportional to the change in pilot current. If the pilot fails. VA is cut off and
Patent GB-737206-A (GB)
Title: Method of and circuit arrangement for the receiving of telegraphic signals in carrier current telegraph installations
IPC: H04L27/08
Filed: 1953-03-27
Abstract: 737,206. Code telegraphy. SIEMENS & HALSKE AKT.-GES. March 27, 1953 [March 27, 1952], No. 8559/53. Class 40 (3). [Also in Group XL (c)] Distortion of the mark/space ratio due to variations in level of received telegraphic signals is overcome by applying the signals to the suppressor grid of a pentode having a doublewound polarized relay in its anode/screen-grid circuits and applying bias derived from the signal to the control grid in order to vary the operating point of the relay with respect to suppressor grid voltage. Fig. 4 shows curves of anode current ia and screen-grid current ig2 against suppressor-grid volts Ug3 for a certain control-grid voltage which gives a cross-over point P and another control-grid voltage giving a cross-over point P<SP>1</SP>. The double-wound polarized relay ER (Fig. 5) changes over its contacts er as the cross-over point is passed through, and if the signal A-B-C-D-E-F is applied to the suppressor grid under the P condition the relay will operate at points G, H and I, giving correctly proportioned signal elements ts and tp. If the signal A-B<SP>1</SP>-C<SP>1</SP>-D-E-F<SP>1</SP> be applied under the same conditions of controlgrid voltage the element ts would be lengthened and tp shortened; but if the control-grid voltage is altered to give P<SP>1</SP> conditions the relay ER operates at G\ H<SP>1</SP> and I<SP>1</SP>, again providing correctly proportioned elements ts and tp. Fig. 5 shows a circuit adapted for reception of modulated carrier-current telegraphic signals. The suppressor grid of a pentode V2 is fed with the rectified signal in series with a steady bias from battery u3 whilst the control grid is fed with rectified signal in series with a positive bias from battery u1 The time constant of condenser C1 and resistor R2 is high enough to maintain a regulating voltage during several space elements or a short interruption of the received signal, and the battery u1 is chosen to give the same voltage as that across R2 at minimum occurring reception level. At lower reception levels grid current would flow and by reason of the high resistors R1 and R2 would prevent the grid going positive and hence a threshold value for the regulation is obtained. The delay device L shown in broken lines is used when the circuit is to be suitable for operation where the carrier-current ceases when no telegraphic signal is being sent and enables a regulating voltage to be built up on the control grid before the signal arrives at the suppressor grid.
Patent GB-833349-A (GB)
Title: Improvements in or relating to methods for measuring the distance between two points
IPC: G01B11/04
Filed: 1956-03-19
Abstract: 833,349. Optical gauges. EXATEST GESELLSCHAFT FUR MESSTECHNIK. March 19, 1956 [March 19, 1955], No. 8572/56. Addition to 787,385. Class 106 (2). [Also in Group XL (b)] The distance between two points A and B in an object plane is measured by (1) producing separate images of the areas around the points by. means of two spaced optical or televisiontype viewing devices having parallel optical axis perpendicular. to the object plane and (2) superimposing the two images and displaying them on a common viewing screen such that a reference direction in the object plane would be represented on the viewing screen by two mutually inclinedlines. Accordingly if the points are moved together in the object plane in a direction r, Fig. la, perpendicular to the plane containing the optical axes of the viewing devices, the displayed image points Al, B1, Fig. 5, will move along inclined paths and the position of the intersection S of the paths along the bisector of the paths indicates the separation of the points A and B. The viewing devices preferably comprise two synchronized television cameras with their scanning rasters 2 and 3, Fig. la, symmetrically inclined with respect to the direction r in which the points A and B are moved, the video outputs from the two cameras being combined and applied to a single television cathode-ray tube display scanned synchronously with the cameras.
Patent GB-145181-A (GB)
Title: Improvements in cotton combing machines
IPC: D01G19/16
Filed: 1919-04-05
Abstract: 145,181. Hayes, J. E., Dooley, J. E., and Howard & Bullough. April 5, 1919. Combing-machines.-In machines of the Heilmann type with multiple heads, the nipper frame is made self-contained and is arranged and mounted to be capable of removal from and reinsertion in the machine without disturbing the adjustment of the adjacent nipper frames. The nipper frame a, Fig. 1, is pivoted in brackets B on supports A. Each support A serves for two adjacent nipper frames and is provided with two independent adjustment plates E, Fig. 5, secured by screws F and carrying adjustment screws D. The nipper knife lever d is connected to the nipper-operating lever G by rods K, Fig. 4, the lower end of which is secured by nuts L in an open-ended slot J in a piece I mounted on a pin H passing through a hole in the end of the lever G. The piece I has bearings on each side of the lever.
Patent GB-907880-A (GB)
Title: Improvements in or relating to apparatus for the inductive heating of work pieces using a step-by-step rotatable turntable
IPC: H05B6/02
Filed: 1959-03-12
Abstract: 907,880. Induction-heating apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 12, 1959 [March 15, 1958], No. 8603/59. Class 39 (3). Apparatus for the inductive heating of workpieces comprises a turntable 3 supporting the workpieces 6 and also supporting a plurality of inductors 8, one for each workpiece, the turntable performing a step by step rotation, wherein current of a frequency between 500 and 10,000 c/s. is continuously fed to the inductors 8 by water-cooled slip rings 14 and associated brushes, each workpiece attaining its correct temperature after a full revolution of the turntable. The turntable has six vertically slidable supports 5 for the workpieces which are held up within the inductors 8 by rollers travelling over flange 13 except when actually loading and unloading, when it is held by a lever actuated by an hydraulic cylinder 12 filled with compressed air or water under pressure. The inductors 8 are carried by a support 7 surrounding the turntable shaft 2. Hydraulically operated arms 9, 10 with gripping fingers discharge and charge the holders 5 with workpieces 6. Charging and discharging takes place while the turntable is in the same rest position and on the same holder 5 and is then repeated for each rest position and each holder 5. A temperature testing device located at a position preceding the charging and discharging station indicates the final temperature of the workpieces optically (the inductor having a small aperture for the purpose). The temperature testing device controls the medium frequency energy fed to inductor: 8 for temperature control.
Patent GB-116746-A (GB)
Title: Improvements in or relating to Gas Generators for use in the Propulsion of Automobile Vehicles.
Inventor: PARKER JAMES WILLLIAM
IPC: C10J3/44
Filed: 1917-06-15
Abstract: 116,746. Parker, J. W., and Abrahams, E. G. June 15, 1917. Grates; ash-pans; air, supplying.-A suction gas generator which delivers gas directly to the internal-combustion engine of a motor vehicle is formed with a perforated dome-shaped base 28. Heated air from the perforated jacket chamber 17 passes through openings 34 in a conical plug 30 which is attached to a screwed shank 32 adjustable in a threaded bearing 33 so as to vary the size of an air opening 31 between the plug 30 and a conical aperture in the base 28. Water passes from a pipe 39 through an opening 37, and a central aperture in the shank 32, so as to assist in the formation of gas. To enable ashes to be cleared from the ashpan 15, a valve 50 which normally prevents access to the pan under the action of a spring 54, may be held open by a pin 55 which is locked in a bayonet slot when the pan is to be cleared. An annular hit-and-miss valve surrounding the domed base may be arranged to discharge all the ashes into the pan 15. Ashes above the base may be removed through an opening closed by the doors 26.